Portable hand-held saw with creasing unit and hand grip

Abstract

The present invention relates to a portable hand-held saw machine comprising a saw unit (11) having a sawing tool holder (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool holder (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw machine (10) along a workpiece (W) in a working direction (AR), and the hand-held saw machine (10) comprises a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) in front of the saw unit (11) in relation to the working direction (AR). The present invention relates to a portable hand-held saw machine having a creasing unit (31) having a creasing device drive device (32A) for driving the creasing device, and the creasing device tool holder is supported on or relative to the guide device (17) so as to be movable between at least one active position (AP) in which a creasing tool (35) arranged in the creasing device tool holder (34) projects in front of a guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts behind the guide surface (19), in order to cut creasing lines (RI) in a workpiece (W) along a depth adjustment motion path (BB) using a creasing device depth adjustment bearing (36). The portable hand-held saw machine is provided with a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for the operator to guide the hand-held machine tool, and it is intended that the creasing device handgrip body is arranged on the upper surface (19A) of the guide device (17) opposite the guide surface (19) in the longitudinal position of the creasing device tool storage section (34) or the creasing unit (31).

Description

[Technical field]

[0001] The present invention relates to a portable hand-held saw machine comprising a saw unit having a sawing tool receptacle for a saw tool, in particular a saw blade, and a sawing drive motor for driving the sawing tool receptacle, and a guide device, the guide device comprising a guide body having a guide surface extending along a longitudinal axis for guiding the hand-held saw machine along a workpiece or a guide rail along a working direction, so that saw cuts can be made in the workpiece along the working direction with the saw tool protruding in front of the guide surface during a sawing operation of the hand-held machine tool, the hand-held saw machine comprising a groove cutting tool, in particular a groove cutting tool, arranged in the guide device in a longitudinal position relative to the longitudinal axis in front of the saw unit with respect to the working direction. The present invention relates to a portable hand-held saw having a creasing unit having a creasing device tool holder for a creasing device saw blade and a creasing device drive device for driving the creasing device tool holder, in which the creasing device tool holder is supported on or against the guide device so as to be movable between at least one active position in which a creasing tool arranged on the creasing device tool holder protrudes in front of a guide surface and an inactive position in which the creasing tool retracts behind the guide surface, in order to cut a creasing line in a workpiece that is positioned in front of a saw cut to be cut in the working direction along a depth adjustment motion trajectory using the creasing device depth adjustment bearing. [Background technology]

[0002] Typically, hand saws of this kind are held by a hand grip of the saw unit, e.g. a hand grip which extends parallel to the longitudinal axis of the guide body and can be grasped by an operator. For example, such hand saws of this kind are described in WO 93 / 03894. However, the handling of such hand saws is not comfortable. In particular, it has become evident that additional forces act on the hand saw during the creasing operation.

[0003] Hand saws with a scoring unit are known, for example, from DE 73 24 551 A1, DE 3 800 935 A1, DE 9 106 212 A1 and US Pat. No. 5,724,740. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] WO 93 / 03894 [Patent Document 2] German Utility Model No. 7324551 [Patent Document 3] DE 3800935 A1 [Patent Document 4] German Utility Model No. 9106212 [Patent Document 5] U.S. Patent No. 5,724,740 Summary of the Invention

[0005] SUMMARY OF THE DISCLOSURE The object of the invention is therefore to improve the handling of hand saws of the type mentioned at the outset.

[0006] In order to solve the above problem, it is proposed that in a hand saw of the type mentioned at the beginning, the hand saw is provided with a creasing device handgrip body assigned to the creasing unit and having a handgrip surface for the operator to guide the handheld tool, and that the creasing device handgrip body is arranged on the upper surface of the guide device opposite to the guide surface in the longitudinal position of the creasing device tool holder or the creasing unit.

[0007] The operator can therefore apply a force in the direction of the guide surface exactly in the area of ​​the scoring tool, thereby compensating for the operator's forces emanating from the scoring tool and directed in the opposite direction to the scoring tool.

[0008] For example, the scoring tool can be adjusted to an inactive position when no scores are to be made.

[0009] The hand saw can have one or more creasing device handgrip bodies assigned to the creasing unit, i.e. there can be a plurality, for example at least two or exactly two, of the creasing device handgrip bodies having one or more of the properties described below, i.e. if below a creasing device handgrip body with a particular property is described, another creasing device handgrip body of the hand saw can also have this property, but in addition to or instead of this property it can also have other properties or qualities.

[0010] It is advantageous if the creasing device handgrip body is not a component of the bearing body and / or the adjustment device of the adjustment device of the hand saw. For example, the creasing device handgrip body is separate from the bevel-cutting bearing or is not a component of the bevel-cutting bearing. It is further advantageous if the creasing device handgrip body is not a component of a depth-adjusting bearing, such as a creasing device depth-adjusting bearing. By means of the adjustment device of the adjustment device, it is possible, for example, to set the ratio of the penetration depth of the creasing tool and the saw tool into the workpiece. For example, the creasing device handgrip body is not formed by an operating handgrip or a knob of an adjustment screw, a handgrip of an adjustment lever or the like.

[0011] It is further advantageous if the creasing tool handgrip body is not a component of a creasing tool depth adjustment means which is used to adjust the distance between the creasing tool tool receptacle and the guide device or guide surface and / or to adjust the penetration depth of the creasing tool into the workpiece in at least one active position.

[0012] In particular, it is advantageous if the creasing device handgrip body is used only as a handgrip for the operator to hold, excluding any protective or covering function for the components of the hand saw, i.e. it may thus be a component of the creasing unit housing or a further housing or protective housing of the creasing unit, but otherwise only has the function of a handgrip body.

[0013] Advantageously, it is provided that the creasing device handgrip body and / or the creasing unit form the foremost component of the hand saw in the working direction arranged on the guide body, with no other components, in particular bearings, handgrip or the like, arranged on the guide body or on the guide device in the working direction in front of the creasing unit.

[0014] The creasing device handgrip body can also be the foremost component of the hand saw in the working direction that is arranged on the guide body and can be gripped by the operator. Thus, further components can be arranged on the guide body or on the guide device in the working direction in front of the creasing device handgrip body, but these are not intended and / or designed to be gripped by the operator.

[0015] It is further possible for the creasing device handgrip body to form the foremost component of the hand saw which protrudes from the upper surface of the guide device and can be gripped by the operator, on whose upper surface the guide device can for example be arranged further grip recesses or the like in front of the creasing device handgrip body in the working direction.

[0016] Advantageously, the sawing tool receptacle, in particular the entire saw unit, is movably supported on or against the guide device by means of a sawing depth adjustment bearing between an upper depth adjustment position and at least one lower depth adjustment position, and it is further provided that in the lower depth adjustment position the saw tool projects further in front of the guide surface than in the upper depth adjustment position, so that, for example, different depth saw cuts can be made in the workpiece.

[0017] The sawing depth adjustment bearing and the creasing device depth adjustment bearing are preferably arranged on the guide body at a longitudinal distance relative to the working direction.

[0018] The sawing depth adjustment bearing and the creasing device depth adjustment bearing are preferably arranged separately from one another on the guide body.

[0019] The sawing depth adjustment bearing and the creasing device depth adjustment bearing advantageously have no common bearing components.

[0020] In a hand saw according to the preamble of claim 1 having a creasing device depth adjustment bearing and a sawing depth adjustment bearing for adjusting the sawing tool receptacle between an upper depth adjustment position and at least one lower depth adjustment position, the following features form an independent invention in themselves, but are also advantageous embodiments of the hand saws described so far:

[0021] Advantageously, the handheld saw has at least one saw unit handgrip, by means of which the sawing tool receptacle, in particular the entire saw unit, can be operated between an upper depth adjustment position and at least one lower depth adjustment position, and the creasing device handgrip body, which is arranged on the upper side opposite the guide surface of the guide device and which preferably has the above or one handgrip surface for the operator to guide the handheld tool tool, comprises or consists of at least one saw unit handgrip, by means of which the creasing device tool receptacle can be operated between an inactive position and at least one active position, and which can be operated relative to the guide body beyond the position assigned to the active position of the creasing device tool receptacle to at least one lower depth adjustment position for adjusting the sawing tool receptacle. The saw unit handgrip is advantageously arranged on the saw unit, in particular on the saw unit housing of the saw unit. For example, the saw unit handgrip is fixedly connected to the saw unit housing.

[0022] For example, the saw unit hand grip has a first position assigned to an upper depth adjustment position of the sawing tool storage part and an inactive position of the creasing device tool storage part, from which the saw unit hand grip can first be adjusted to a second position in which the creasing device tool storage part is adjusted to an active position, and from which the saw unit hand grip can be adjusted to at least one third position in which the sawing tool storage part is in a lower depth adjustment position without further adjustment of the creasing device tool storage part.

[0023] Such a saw unit handgrip has a handgrip surface for the operator to guide the handheld tool and is arranged on the upper surface of the guide device opposite to the guide surface. The saw unit handgrip forming the or one of the creasing device handgrip can be arranged on the guide device advantageously in the longitudinal position of the creasing device tool receptacle or the creasing unit. However, it is also possible for this saw unit handgrip to be arranged on the guide device, for example, in the longitudinal position of the saw unit or between the sawing tool receptacle and the creasing device tool receptacle.

[0024] Between the saw unit hand grip forming the creasing device hand grip body and the creasing device tool receptacle, for example, a transmission, in particular a cam transmission, a link transmission or the like, can be provided. Furthermore, there is a free travel between the saw unit hand grip and the creasing device tool receptacle, such that the saw unit hand grip holds the creasing device tool receptacle in an active position and that the free travel allows a further adjustment of the saw unit hand grip to adjust the sawing tool receptacle to the lower depth adjustment position.

[0025] The following is advantageously contemplated:

[0026] Advantageously, it is provided that the hand saw has an entrainment device for providing an entrainment connection between the sawing tool holder and the scoring device tool holder, by which the scoring device tool holder is entrained between an inactive position and at least one active position when the sawing tool holder is moved between the depth adjustment positions and / or between the upper depth adjustment position and at least one lower depth adjustment position, and the entrainment device has an operating body arranged on the saw unit for operating a controlled body arranged on the scoring unit, the operating body being capable of operating the controlled body and thus the entire scoring unit or the scoring device tool holder, for example from an inactive position to at least one active position and / or from the at least one active position to an inactive position.

[0027] Advantageously, the operating body of the saw unit and the operated body of the scoring unit are mechanically connected to each other or engage with each other. The operating body can be arranged stationary or movably on the saw unit and the operated body can be arranged stationary or movably on the scoring unit. The entrainment of the scoring device tool holder by the sawing tool holder takes place, for example, between two different lower depth adjustment positions. The entrainment preferably takes place between an upper depth adjustment position and one or more lower depth adjustment positions. The operating body and the operated body can also be components of a transmission, a gear transmission, a wire rope transmission, a Bowden cable or the like.

[0028] The entrainment device can only connect the tool receptacles to one another, for example, it is possible for the sawing tool receptacle to entrain the creasing tool receptacle by means of the entrainment device, however, it is preferred that the entrainment device allows for a complete kinematic connection between the saw unit and the creasing unit, so that the creasing unit is entrained by the saw unit when the saw unit is adjusted.

[0029] The hand saw preferably has one or more movable components, for example for adjusting the position of a creasing tool, a saw tool or the like. The creasing device handgrip body can be arranged completely movably with respect to the guide device. However, it is advantageous if the creasing device handgrip body is arranged on the guide device in a stationary manner with respect to the depth-adjusting movement path of the creasing device tool receptacle, so that the handgrip surface of the creasing device handgrip body is stationary with respect to the depth-adjusting movement path and can be subjected to an operating force in the force direction of the movement path. Thus, that is to say, the creasing device handgrip body remains stationary when making a depth adjustment, for example for adjusting the creasing device tool receptacle or the creasing tool between an active position and an inactive position.

[0030] It is advantageous if the creasing device handgrip body is arranged on the guide device such that it cannot be pivoted relative to a pivot axis extending transversely to the longitudinal axis of the guide device, in particular relative to each pivot axis extending transversely to the longitudinal axis. For example, the sawing tool holder and / or the creasing device tool holder can be pivoted about such a pivot axis. The operator can thus use a handgrip surface that is fixed relative to this pivot axis in order to manipulate the creasing unit or the creasing tool towards the guide surface, in the sense of guiding or applying a force.

[0031] Basically, it is possible for the creasing device drive to be arranged anywhere. However, it is advantageous if the creasing device drive is arranged between the upper surface of the guide device and the handgrip surface of the creasing device handgrip body. The creasing device drive comprises, for example, a drive motor. The creasing device drive can be movable between the handgrip surface and the upper surface of the guide device and can, for example, take part in the movement of the creasing device tool receptacle along the movement path.

[0032] Preferably, at least one of the creasing device handgrip bodies or the creasing device handgrip bodies is arranged in or consists of a creasing unit housing of the creasing unit, which housing has an accommodation space in which at least one movable component of the creasing unit, in particular the creasing device tool receptacle, is accommodated movably relative to the creasing device handgrip body. The at least one movable component advantageously comprises a creasing device drive and / or a creasing device depth adjustment means for adjusting the distance between the creasing device tool receptacle and the guide device or guide surface and / or the penetration depth of the creasing tool into the workpiece in at least one active position. Other components of the creasing unit, such as, for example, a deactivation device, can also be arranged at least partially without problems in the creasing unit housing.

[0033] The creasing unit preferably has at least one further housing, for example a drive housing, which is in particular movably accommodated in the creasing unit housing, for example a creasing device drive motor for driving the creasing device tool receptacle can be accommodated in the drive housing, which itself is accommodated fully or partially in the creasing unit housing.

[0034] The creasing unit housing preferably has ventilation ribs for the creasing device drive.

[0035] The scoring unit housing preferably has resilient and / or flexible walls.

[0036] The scoring unit housing is preferably formed like a protective hood or cover.

[0037] The scoring unit housing preferably has a top wall on its side facing away from the guide device and / or on its top surface.

[0038] Advantageously, the creasing unit housing is provided with at least one side wall, front in the working direction and / or rear in the working direction, which at least one side wall is preferably connected to or integral with the top wall.

[0039] Furthermore, the creasing unit housing preferably has a longitudinal side wall facing away from and / or opposite the creasing device tool receptacle, the longitudinal side wall being preferably connected to or integral with the top wall and / or at least one of the front or rear side walls in the working direction.

[0040] It is advantageous if the hand grip surface is formed by or arranged on a wall, in particular the upper wall, of the creasing unit housing, the wall having, for example, elastic properties, i.e. the wall damps vibrations that arise, for example, from the processing of the workpiece or from the drive motor of a hand saw.

[0041] Furthermore, it is advantageous if the handgrip surface of the creasing device handgrip body is arranged in a portion that is remote from the upper surface of the guide body of the creasing unit housing, however, the handgrip surface can also extend towards or be arranged on, for example, the back surface facing away from the working direction or on the upper surface of the guide body that is inclined obliquely to the working direction.

[0042] It is advantageous if, relative to the longitudinal axis of the guide device or guide body, there is an intermediate space or distance between the saw unit housing and the creasing device handgrip body, e.g. the creasing unit housing, in which at least one operating element of the creasing unit, which is provided for operation by an operator, is arranged, e.g. the operating element comprises, for example, an operating element of a deactivation device of the creasing unit and / or an operating element of a lateral adjustment device and / or an operating element of a creasing device depth adjustment means.

[0043] In addition to or instead of forming and / or arranging the hand grip surface of the creasing device hand grip body on the creasing unit housing, it is also possible that the creasing device hand grip body comprises or consists of a hand grip body separate from the creasing unit or from the creasing unit housing of the creasing unit, with an intermediate space being present between this creasing device hand grip body and the creasing unit, so that the operator can reach his hand into the intermediate space to grip the creasing device hand grip body. Thus, two things are possible: there is a creasing unit housing, which provides a hand grip surface and, in addition to this, also an additional creasing device hand grip body.

[0044] Preferably, the creasing device handgrip body is supported on the guide device by means of a swivel bearing assembly, in particular a bevel-cutting bearing assembly, so as to be rotatable about at least one pivot axis, in particular a bevel-cutting axis parallel to the working direction or to the longitudinal axis of the guide device, i.e. the creasing device handgrip body can thus be swiveled about a pivot axis, in particular a bevel-cutting axis, for example to make bevel-cutting incisions in the workpiece.

[0045] It is advantageous if the creasing device handgrip body is arranged stationarily on a support for the creasing unit and / or the creasing device tool receptacle, which support is pivotable relative to the guide device, in particular by means of a bevel-cutting bearing assembly, about at least one pivot axis, in particular a bevel-cutting axis parallel to the working direction or to the longitudinal axis of the guide device, in order to change the relative position of the creasing device tool receptacle and the guide surface. The support can support, for example, the creasing unit housing. The support is or comprises, for example, a protective housing for receiving the saw tool and / or the creasing tool. In the protective housing, a part of the saw tool or the creasing tool that is remote from the guide surface is received. The protective housing is, for example, a protective hood or a suction hood for suctioning dust.

[0046] It is advantageous if the sawing tool holder, in particular the entire saw unit, is arranged on the support. Thus, the saw unit is also supported so that it can pivot about the bevel-cutting axis relative to the guide device. At least one saw unit handgrip, which will be described further below, can also be arranged on the support. Preferably, several or all of the saw unit handgrip are arranged on the support.

[0047] The guide body can also be advantageously used to guide the hand saw. Preferably, the guide body has a hand grip portion on its upper surface, which is intended to be at least substantially covered by the creasing unit in a pivoted position in which the support is pivoted towards the upper surface, and to be exposed to be operated by the operator of the hand saw in a pivoted position in which the support is pivoted away from the upper surface. That is, for example, when the support is in a bevel cutting position intended for a vertical incision into the workpiece, for example a so-called 0° cut, the hand grip portion of the guide body is completely or partially covered by the creasing unit. However, when the support is pivoted to a bevel cutting position in which the creasing unit and / or the saw unit are in an angular position relative to the upper surface of the guide body, the hand grip portion is exposed to be grasped or operated by the operator.

[0048] The creasing device handgrip body can be formed, for example, as a curved handle or other body, the longitudinal ends of which are fixed in place in each case. However, it is preferred if the creasing device handgrip body projects freely in front of the support in its free end region. For example, the operator can grasp the free end region of the creasing device handgrip body on or from the side of the hand saw opposite the creasing tool or saw tool.

[0049] It is preferred if the hand grip surface extends to or is arranged in the free end region and / or if a support part is arranged in the free end region at a distance from the support, which is supported on the upper surface of the guide device when the support is in at least one pivot position about at least one pivot axis. For example, the support is swiveled into a bevel cutting position intended for a vertical incision into the workpiece, such that the support part is directly supported on the guide body. Thus, shocks that may occur, for example, if the hand saw falls to the ground, can be absorbed. The support part is also protected from damage, for example, if the creasing unit housing has elastic or flexible walls.

[0050] For example, it is advantageous to form the creasing device handgrip body so that it has an elongated shape and extends along a handgrip longitudinal axis that extends transversely, in particular perpendicularly, to the longitudinal axis of the guide device.

[0051] It is furthermore advantageous if the creasing device handgrip body extends transversely to its longitudinal axis and substantially over the entire lateral width of the guide body. An advantageous concept provides, for example, that the guide body has longitudinal sides extending parallel to its longitudinal axis, between which the creasing unit is arranged, the creasing device tool receptacle is arranged on one longitudinal side and the creasing device handgrip body extends away from the longitudinal side to the other longitudinal side, in particular directly to the other longitudinal side. Needless to say, the creasing device handgrip body does not have to extend to the longitudinal side on which the tool receptacle is arranged.

[0052] There are several possibilities for the embodiment of the handgrip surface of the creasing device handgrip body or the handgrip portion of the already described guide body. Advantageously, it is provided, for example, that the handgrip surface of the creasing device handgrip body and / or the upper surface of the guide body, in particular the handgrip portion of the guide body arranged below the creasing unit or immediately adjacent to the creasing unit, is provided with grip recesses and / or flat surfaces and / or grip projections that can be grasped by hand.

[0053] Furthermore, it is easily possible for the hand saw to have further hand grips, hand grip parts, etc. An advantageous embodiment provides for at least one saw unit hand grip, in particular two saw unit hand grips, to be arranged on the saw unit behind the creasing device hand grip body relative to the working direction.

[0054] At least one saw unit hand grip can be used to adjust, for example, the saw unit or the sawing tool receptacle with respect to the penetration depth of the saw tool into the workpiece, but it is also advantageously possible to guide the hand saw in the working direction by means of such a saw unit hand grip.

[0055] The two above-mentioned operations are also facilitated or made possible by the saw unit handgrip, which is described below. It is advantageous if the hand saw has a saw unit handgrip arranged on the saw unit behind the sawing tool receptacle relative to the working direction. This saw unit handgrip expediently has an elongated shape with a longitudinal axis running parallel to the longitudinal axis of the guide body. Thus, for example, two saw unit handgrip can be provided, one of which is oriented parallel to the longitudinal axis of the guide body and the other one transverse to this longitudinal axis. In addition to this, a creasing device handgrip body is also provided.

[0056] Advantageously, in the hand saw, it is further provided that the hand saw has a saw unit handgrip arranged on the saw unit in front of the sawing tool receptacle with respect to a longitudinal axis of the guide body parallel to the working direction in at least one depth adjustment position of the sawing tool receptacle, the saw unit handgrip having an elongated shape with a longitudinal axis that preferably runs transversely, in particular at a right angle, to the longitudinal axis of the guide body.

[0057] The saw unit handgrip and at least one creasing device handgrip body are supported in the guide device, preferably by means of a bevel-cutting bearing assembly, so as to be pivotable about a bevel-cutting axis parallel to the working direction or to the longitudinal axis of the guide device. The creasing device handgrip body can essentially be pivotable relative to the saw unit handgrip about the bevel-cutting axis. However, it is preferred if the creasing device handgrip body and the saw unit handgrip are not pivotable about the bevel-cutting axis. In that case, it is possible for the saw unit handgrip and the creasing device handgrip body to be movable relative to each other with respect to at least one further degree of freedom of movement, for example about a pivot axis of the sawing depth adjustment bearing and / or the creasing device depth adjustment bearing.

[0058] The scoring tool and / or the saw tool are preferably configured as saw blades, in particular circular saw blades. In principle, however, it would also be possible for the saw tool to be another saw blade, for example of a jigsaw or similar non-circular type. Furthermore, the scoring tool can also comprise or consist of, for example, a milling head or milling tool.

[0059] The saw tool and the scoring tool are preferably formed as saw blades, in which case an advantageous embodiment provides for the ratio of the outer diameter of the saw tool to the outer diameter of the sawing drive motor to be greater than the ratio of the outer diameter of the scoring tool to the outer diameter of the scoring device drive motor, in particular at least 1.5 times greater, preferably 2 times greater, more preferably at least 2.5 times greater.

[0060] A hand saw is a saw that is manually guided along the workpiece. The machine can be freely guided over the workpiece, i.e. moved without guide rails. However, it is preferably moved by means of guide rails. Preferably, the hand machine is a plunge saw and / or does not have a protective cover for the parts of the sawing tool and / or the scoring tool that protrude freely in front of the guide surface.

[0061] The saw unit and the creasing unit are arranged on the upper side of the guide device opposite the guide surface. The guide device comprises, for example, a so-called saw table. The guide device or guide body preferably comprises a plate body on one side of which the guide surface is arranged and on the opposite side or on top of which the saw unit and the creasing unit are arranged. In the guide surface, guide receptacles, for example longitudinal grooves or the like, for guide ribs or guide projections of the guide rail are preferably arranged.

[0062] The sawing drive motor and / or the creasing device drive motor are preferably electric motors, in particular universal motors or brushless electronically commutated motors or DC motors. Different types of motors can be used as the sawing drive motor and the creasing device drive motor, for example an electronically commutated motor can be used as the sawing drive motor and a DC motor can be used as the creasing device drive motor.

[0063] An embodiment of the present invention will now be described with reference to the drawings. [Brief description of the drawings]

[0064] [Figure 1] FIG. 1 is a front perspective view of a handheld saw with a saw unit and a creasing unit in the upper depth adjustment position. [Diagram 2] FIG. 2 is a view of the hand saw according to FIG. 1 in the lower depth adjustment position. [Diagram 3] FIG. 3 is a rear oblique view of the hand saw according to FIGS. 1 and 2 on a guide rail in the bevel cutting position. [Figure 4] FIG. 4 is a detail view according to FIG. 3 from the front of the lower part of the hand saw and the guide rail, in which the guide body and the guide rail of the hand tool engage with each other with an additional rear engagement contour. [Diagram 5] FIG. 5 shows a variant of the hand saw according to the previous figure, with a scoring unit which can be pivoted about the bevel-cutting axis separately from the saw unit, or which is stationary relative to the bevel-cutting axis. [Figure 6] FIG. 6 is a side view of the hand saw according to FIG. 1 with the protective housing open and with its saw unit in the upper depth adjustment position, approximately in the viewing direction BR1. [Figure 7] FIG. 7 is a view of the right part of the view according to FIG. 6, with the saw unit adjusted to the lowest depth adjustment position, but the scoring unit inactive. [Figure 8] FIG. 8 shows a view according to FIGS. 6 and 7 with the saw unit adjusted to the lowest depth adjustment position and the creasing unit adjusted to the active position. [Figure 9] FIG. 9 is a view according to FIG. 8 with the saw unit adjusted to the scoring-only depth adjustment position and the scoring unit adjusted to the active position. [Figure 10] FIG. 10 is a view of the scoring-only depth stop device in the release position allowing adjustment of the saw unit according to FIG. 8 as detail D2 of the hand-held saw, which is additionally shown in its entirety in FIG. 10 from obliquely behind. [Figure 11] FIG. 11 is a view of the scoring-only depth stop arrangement according to FIG. 10 in a stop position corresponding to the scoring-only depth adjustment position of the saw unit. [Figure 12] FIG. 12 is a detailed view of the scoring unit from an oblique front view, approximately taken from the line of sight of FIG. [Figure 13] FIG. 13 is a view of the scoring unit according to FIG. 12 in the activated position, from obliquely behind, which corresponds approximately to the line of sight of FIG. [Figure 14] FIG. 14 is a view of the creasing unit according to FIG. 13, with the creasing unit adjusted to the deactivated position. [Figure 15] FIG. 15 is a cross-sectional view of the scoring unit according to FIG. 13 approximately along the section line AA through the deactivation device. [Figure 16] FIG. 16 is a front view of the scoring unit of the hand saw of FIG. 1. FIG. [Figure 17]FIG. 17 is a partial cross-sectional view of the scoring unit according to FIG. 16 approximately along the section line BB additionally showing a cross-section of the entire hand saw with a small view showing the detail D3 shown in FIG. [Figure 18] FIG. 18 is a side view of the hand saw according to the previous figure with the protective housing open, roughly corresponding to the view according to FIG. 6. [Figure 19] FIG. 19 is a perspective view of the cover of the protective housing, approximately in accordance with FIG. 1, from three-quarters. [Figure 20] FIG. 20 is a view similar to FIG. 18 of a variant of the hand saw. [Figure 21] FIG. 21 is a side view of another variant of the hand saw, corresponding generally to the viewing direction BR1 of FIG. [Figure 22] FIG. 22 is an oblique front view of the hand saw according to the previous figures, with the protective housing closed with the cover according to FIG. [Figure 23] FIG. 23 is a view of the front section D4 of the view according to FIG. 22 with the cover element adjusted to the open position. [Figure 24] FIG. 24 shows a view according to FIG. 23 with the cover element adjusted to the covering position. [Diagram 25] FIG. 25 is a view of a partial area of ​​the cover according to FIG. 19, with the cover elements adjusted to the open position, corresponding to the partial view according to FIG. [Figure 26] FIG. 26 shows a view according to FIG. 25 with the cover element adjusted to the covering position. [Figure 27] FIG. 27 is a rear view of the hand saw according to FIG. 1 showing the creasing device handgrip assembly. [Figure 28] FIG. 28 is a front oblique view of the hand saw of FIG. [Figure 29] FIG. 29 shows a variant of the hand saw according to FIG. 27 with an additional creasing device handgrip body. [Diagram 30] FIG. 30 is a front oblique view of the hand saw of FIG. [Diagram 31] FIG. 31 is a side view of the hand saw according to the previous figure, with the safety in the safe position. [Diagram 32] FIG. 32 is a perspective view of the safety device of the hand saw according to FIG. [Diagram 33] FIG. 33 is a schematic side view of the hand saw according to the previous figure. [Diagram 34] FIG. 34 shows a variant of the hand saw according to FIG. 33 with an alternative entrainment device. [Diagram 35] FIG. 35 is a schematic diagram of a hand-held saw with a manually and separately operable creasing unit. [Diagram 36] FIG. 36 is a diagram of a hand-held saw with a motorized adjustable creasing unit. [Figure 37] FIG. 37 is a diagram of a hand-held saw with a creasing unit that is manually operable via a power transmission element. [Figure 38] FIG. 38 is a perspective view of a variant of the scoring unit with an alternative scoring device depth adjustment means and an alternative deactivation device in a deactivated position. [Figure 39] FIG. 39 shows a view of the scoring unit according to FIG. 38 in the activated position. [Diagram 40] FIG. 40 is a cross-sectional view taken along line CC in FIG. 39, passing through the creasing unit. [Diagram 41] FIG. 41 is an exploded view of the creasing unit according to FIGS. [Diagram 42] FIG. 42 is a diagram of a scoring tool with four scoring teeth. [Diagram 43] FIG. 43 is a diagram of a system with a scoring tool and a sawing tool according to FIG. 42 cut along the cutting line DD. [Diagram 44] FIG. 44 is a view of detail D5 from FIG. [Diagram 45] FIG. 45 is a perspective view of the scoring tool according to FIG. 42 in an oblique view. [Figure 46] FIG. 46 is a diagram of a scoring tool with three scoring teeth. [Figure 47]FIG. 47 shows a scoring tool with one score tooth or two score teeth. [Figure 48] FIG. 48 shows a view of another embodiment of scoring teeth of a scoring tool, roughly corresponding to detail D5 according to FIG. 44, in which the minor cutting edges are at an angle to each other. [Figure 49] FIG. 49 is a diagram of an alternative embodiment of a score tooth substantially in the form of a score tooth according to FIG. 48 but having a concave minor cutting edge. [Figure 50] FIG. 50 is a diagram of another embodiment of a serration tooth having a convex minor cutting edge. [Figure 51] FIG. 51 is a side view of the saw tool. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0065] The hand saw 10 is formed, for example, in the form of a plunge saw, but may have, for example, a pendulum hood or other such protective covering and thus may be a pendulum saw.

[0066] The hand saw 10 comprises a saw unit 11 with a sawing drive motor 12, which is accommodated in a motor housing part 28 of the saw unit housing 13. The sawing drive motor 12 drives a sawing tool receptacle 14, either directly or via a transmission, not visible in the drawings, in which a sawing tool 15 can be or is arranged. To hold the sawing tool 15 in the sawing tool receptacle 14, for example a retaining screw or a retaining element 14A is used.

[0067] By means of the sawing depth adjustment bearing 16, the entire saw unit 11 can be swiveled about a depth adjustment axis TS relative to a guide device 17 on which the saw unit 11 is arranged. By means of such a swiveling movement the saw tool 15 can be adjusted between an upper depth adjustment position OT and a number of lower depth adjustment positions, for example a lowest depth adjustment position UT according to Fig. 2 or Fig. 8. In the lower depth adjustment position UT the saw tool 15 projects in front of a guide surface 19 of a guide body 18 of the guide device 17, for example for making a sawing cut into a workpiece W.

[0068] By means of the guide surface 19, the guide body 18, and thus the entire hand saw 10, can be guided in a working direction AR, for example directly along the upper workpiece surface WO of the workpiece W. The guide surface 19 extends with a longitudinal axis L parallel to the working direction AR.

[0069] However, the guide body 18 can also be guided, for example, along an upper surface or guide surface 202 of a guide rail 200, the lower surface 201 of which can rest on the workpiece W. This allows particularly precise and straight saw cuts to be made in the workpiece W.

[0070] The guide rail 200 has an elongated shape with longitudinal narrow surfaces 203, 204 extending along a longitudinal axis LS of the guide rail 200 along which the working direction AR is oriented, between a rear end face 207 in the working direction AR and a front end face 208 in the working direction AR. The saw tool 15 can pass beside this longitudinal narrow surface 204 and enter the workpiece W.

[0071] Furthermore, a counter guide contour 206 in the form of a longitudinal rib and optionally a receiving groove 205 extends parallel to the longitudinal axis LS. The receiving groove 205 serves, for example, to receive an auxiliary means, a clamping device for clamping the guide rail 200 or the like. The longitudinal rib or guide contour 206 protrudes upwards in front of the guide surface 202 and serves to engage a guide contour 216 in the guide surface 19 of the guide body 18. The guide contour 216 is formed, for example, as an elongated receiving groove 217 extending along the longitudinal axis L of the guide body 18.

[0072] An alternative embodiment of the guide rail 200 is shown, for example, in the form of the guide rail 200A. The guide rail 200A has a rear engagement protrusion 210 which projects in front of the guide surface 202 and from which at least one rear engagement leg 211, preferably two rear engagement legs 211 opposite each other, project laterally laterally, forming, for example, a T-shaped structure. The rear engagement leg 211 engages in an accommodation 220, optionally provided in the guide surface 19, which has a rear engagement accommodation 221. For example, the support leg 222 projects in the plane of the guide surface 19 in the direction of the accommodation 220 which can be engaged from the rear by the rear engagement leg 211 which engages in the rear engagement accommodation 221. Thereby, the guide device 17 is held on the guide rail 200A in a force direction perpendicular to the guide surface 18, but is nevertheless displaceable in the working direction AR along the guide rail 200A. The receiving portion 220 and the rear engagement protrusion 210 have an elongated shape and extend in the direction of the longitudinal axis L or LS.

[0073] The guide body has a longitudinal side, hereinafter referred to as the tool longitudinal side 18A, on which the saw tool 15 is arranged, and a so-called tool-free longitudinal side 18B which extends parallel to the longitudinal side 18A and also extends between the front and rear end faces 18C, 18D of the guide body 18.

[0074] The saw unit 11 is arranged on the upper surface 19A of the guide device 17 or guide body 18, opposite the guide surface 19. The guide body 18 is, for example, formed by a guide plate or is plate-like. Whereas the guide surface 19 is substantially planar, with the exception of the receiving contours arranged on this guide surface, in particular the receiving part 220 and / or the guide contour 216, for example, the upper surface 19A can support functional components and / or be reinforced by a rib structure. In particular, it is possible for an operator to grip and / or manipulate the upper surface 19A, in particular in the region of the handgrip portion 18F near the front end surface 18C, in order to guide the hand saw 10, for example to urge the front part of the guide body 18 in the direction of the workpiece W or the guide rail 200 in a force direction perpendicular to the guide surface 19. The handgrip portion 18F can, for example, be planar or can include a planar surface. Advantageously, the handgrip portion 18F has a grip recess. However, the hand grip portion 18F may also include a grip element 218, such as, for example, a rod-like or toggle-like hand grip.

[0075] The saw unit 11 as a whole is biased towards the upper depth adjustment position OT by means of a saw unit spring assembly 20. The saw unit spring assembly 20 comprises, for example, a coil spring 20A. The coil spring 20A or spring assembly 20 is supported on an upper surface 19A of the guide device 17 on the one hand and on a lower surface of the saw unit housing 13 on the other hand.

[0076] Alongside the depth adjustability about the depth adjustment axis TS, the saw unit 11 can be pivoted about a bevel cutting axis G.

[0077] The hand saw 10 has a support 40. The support 40 is provided with a protective housing 29. The saw unit 11 is held on the support 40.

[0078] The support 40 and / or the protective housing 29 are supported in the guide device 17 so as to be pivotable about a bevel-cutting axis G, which runs parallel to the longitudinal axis L of the guide device 17, i.e. by means of a front bevel-cutting bearing 21 in the working direction AR and a rear bevel-cutting bearing 23 in the working direction of the bevel-cutting bearing assembly 21A. The bevel-cutting bearings 21, 22 are arranged close to or directly on the front and rear end faces 18C, 18D of the guide body 18, i.e. they form so to speak the frontmost and rearmost components of the hand saw 10 in the working direction AR.

[0079] The bevel-cutting bearings 21, 22 each have a bearing base 23, in particular in the form of a plate, which projects upwardly from the upper surface 19A of the device 10, in which a bearing body 24, likewise preferably formed as a plate, is supported so as to be rotatable about the bevel-cutting axis G.

[0080] The bevel-cutting bearings 21, 22 can be fixed in a number of pivotal positions relative to the bevel-cutting axis G by means of fixing means 25. The fixing means 25 comprises, for example, a clamping screw 25A which can urge the bearing base 23 and the bearing body 24 towards one another in a clamped position, thereby holding the bearing base and the bearing body to one another force-lockingly, for example by means of intermeshing teeth, and / or frictionally and / or form-lockingly and fixing the support 40 to the guide device 17 in an angular position adjusted relative to the bevel-cutting axis G.

[0081] Instead of the concept of a support 40 on which the saw unit 11 and the scoring unit 31 are arranged so as to be able to rotate simultaneously about the bevel-cutting axis G by means of a bevel-cutting bearing assembly 21A, a concept is also possible in which the scoring unit 31 can be swiveled about the bevel-cutting axis G independently of the saw unit 11. For this purpose, for example, a bevel-cutting bearing 22A is present between the scoring unit 31A, which itself corresponds to the scoring unit 31, and the saw unit 11, as in the embodiment of the hand saw 10A according to FIG. 5. Naturally, like the bevel-cutting bearings 21, 22, this bevel-cutting bearing 22A can also be fixed by means of fastening means 25, for example by means of a clamping screw, whereby the relative position of the saw unit 11 and the scoring unit 31 can be fixed with respect to the bevel-cutting axis G.

[0082] 5 may, however, also provide that the saw unit 11 can pivot about the bevel-cutting axis G, but that the scoring unit 31A is arranged relative to the bevel-cutting axis G stationary with respect to the guide device 17. In this case too, a bevel-cutting bearing 22A is advantageously provided between the scoring unit 31 and the saw unit 11.

[0083] The support 40 comprises a protective housing 29 having a saw tool receiving space 48 for receiving the saw tool 15. The saw tool 15 is received pivotally about a depth adjustment axis TS for a pivoting movement in the saw tool receiving space 48, the saw tool not projecting in front of the saw tool receiving space 48 in an upper depth adjustment position OT, but projecting to its maximum extent in front of the protective housing 29 and the guide surface 19 in a lower depth adjustment position, e.g. in the lowest depth adjustment position UT.

[0084] The sawing tool receptacle 14 is driven in rotation in one direction about the tool rotation axis DS by the sawing drive motor 12 so that the sawing tool 15 cuts into the workpiece W from its underside WU and creates a saw cut SAE. The sawing tool 15 is a saw blade, the teeth of which are driven inclined in the direction of rotation with respect to the guide surface 19, whereby the teeth can lead to the formation of cracks when they exit the workpiece upper side WO. To prevent this problem, the hand saw 10 has a creasing device module 30.

[0085] The creasing device module 30 comprises a creasing device unit 31 arranged in front of the saw unit 11 in the working direction AR. Like the saw unit 11, the creasing device unit 31 is arranged on a support 40. A creasing device drive motor 32 drives the creasing device tool holder 34 about the tool rotation axis DV, but in the opposite direction to the direction of rotation of the tool rotation axis DS. The creasing device drive motor 32 forms a creasing device drive 32A.

[0086] The scoring tool 35, for example a scoring tool saw blade, can be removably attached to the scoring tool receptacle 34, in particular by means of a holding element 34A, in particular a holding screw. The scoring tool 35 is driven in one rotational direction and cuts with its teeth into the workpiece W from the workpiece top surface WO, generating a score RI which is aligned with the saw cut made in the workpiece W by the saw tool 15. The score is somewhat wider than the subsequent saw cut, so that the saw tool 15 does not come into contact with the longitudinal edge of the score, and therefore no or only few cracks are formed on the workpiece top surface WO and no or only few chips or the like are torn off.

[0087] The creasing unit housing 33, in which the essential components of the creasing unit 31 are accommodated in a protected manner, is arranged on the support 40. The creasing unit housing 33 is thus stationary both with respect to the support 40 and with respect to the protective housing 29, whereas the movable components of the creasing unit 31, in particular the creasing device drive motor 32 and the transmission between the creasing device drive motor 32 and the creasing device tool receptacle 34, are accommodated movably in the inner space of the creasing unit housing 33. The creasing device drive motor 32 is advantageously accommodated in a motor housing 33A which is separate from the creasing unit housing 33. The motor housing 33A is movable relative to the creasing unit housing 33.

[0088] The creasing unit 31 comprises a creasing device support 80 which is supported on the support 40 about a depth adjustment axis TV by means of a creasing device depth adjustment bearing 36. The creasing device tool receptacle 34 is likewise accommodated in the inner space of the protective housing 29, i.e. in the creasing device tool receptacle space 49 of the protective housing.

[0089] The creasing device support 80 has, for example, a block-like or rectangular parallelepiped shape. The creasing device support 80 has, for example, an elongated shape. The longitudinal axis of the creasing device support 80 or of the entire creasing device support 80 is, for example, inclined at a shallow angle to the guide surface 19 depending on the respective pivot position relative to the depth adjustment axis TV, or is parallel to the guide surface 19 in several angular positions relative to the depth adjustment axis TV.

[0090] The creasing device support 80 has, in its opposing longitudinal end regions, a bearing part 81, which is supported in the creasing device depth adjustment bearing 36 about the depth adjustment axis TV, and a motor part 82, which has a motor receptacle 83, in which the creasing device drive motor 32 is held. Between the creasing device drive motor 32 and the creasing device tool receptacle 34, a gearing 84, which is a stepped gearing or the like, can be arranged. For example, on the basis of the gearing 84, it is possible for the tool rotation axis DV and the motor rotation axis DM of the creasing device drive motor 32 to have a lateral distance from one another. For example, the motor rotation axis DM has a greater distance to the guide surface 19 than the tool rotation axis DV, so that the motor rotation axis is very close to the guide surface 19. It is thus possible, for example, for the creasing device drive motor 32 to have a larger diameter for generating a correspondingly larger torque than in the case of a version in which the motor rotation axis and the tool rotation axis DV are aligned with one another.

[0091] In order to operate the sawing tool holder 14 between the upper depth adjustment position OT and the lower depth adjustment position UT, the entire saw unit 11 must be pivoted about the depth adjustment axis TS. For this, the operator can, for example, grip the hand grips 26 and / or 27 arranged on the saw unit housing 13. The hand grip 26 is arranged behind the saw unit 11 in the working direction AR, and the hand grip 27 is arranged on the saw unit 11 in the front area of ​​the saw unit housing 13 in the working direction AR. The two hand grips 26, 27 have an elongated shape. The hand grip 26 has a longitudinal axis L26 that runs substantially parallel to the longitudinal axis L of the guide device 17, whereas the longitudinal axis L27 of the hand grip 27 runs transversely to this longitudinal axis L. That is to say, the operator can, for example, by pressing the hand grip 27, generate a torque about the depth adjustment axis TS, which causes the sawing tool holder 14 to pivot about the depth adjustment axis TS and moves the saw tool 15 in front of the guide surface 19.

[0092] The hand grip 27 simultaneously constitutes an operating element 27A, which enables the operator not only to operate the saw unit 11 or the sawing tool holder 14 between the depth adjustment positions, but also to operate the scoring unit 31 in addition. The operating element 27A, i.e. the operating hand grip 27B, acts on the scoring unit 31 via the entrainment device 70 in order to adjust the scoring unit 31 between an active position AP, in which the scoring tool 35 projects in front of the guide surface 19, and an inactive position IP, in which the scoring tool 35 is retracted behind the guide surface 19 or in any case does not project in front of the guide surface.

[0093] The creasing device support 80, and thus the creasing device tool receptacle 34, is loaded by the creasing unit spring assembly 39 in the direction of the inactive position IP. If, on the other hand, the saw unit 11 is operated from the upper depth adjustment position OT to the lower depth adjustment position UT, the entrainment device 70 entrains the creasing unit 31 in the opposite direction, i.e. to the active position AP. When adjusting the hand saw 10 to the lower depth adjustment position or sawing position, the operator therefore works, as it were, against the two spring assemblies 20, 39 in order to adjust the saw tool 15 and the creasing tool 35 into the working or sawing position for cutting into the workpiece W. The two spring assemblies 20, 39 act in opposite directions, as it were, in the inactive or safety position, and both spring assemblies act in a safety sense, i.e. in the sense of retracting the saw tool 15 and the creasing tool 35 behind the guide surface 19.

[0094] The entrainment device 70 comprises an operating body 71 at the saw unit 11, which acts on an operated body 72 of the scoring unit 31. The operating body 71 is configured as a link guide 73 and comprises a guide link 74, along which a link follower 75 of the scoring unit 31, for example a roller or idler roller, is guided, for example rolls. The operating body 71 and the operated body 72 are advantageously arranged outside the protective housing 29.

[0095] The guide link 74 comprises a creasing device activating part 76 and a creasing device holding part 77, between which an apex 76A is arranged. The creasing device holding part 77 of the guide link 74 or of the link path extends within a radius R about the depth adjustment axis TS. In contrast, the creasing device activating part 76 extends at an angle to the creasing device holding part 77 such that the link follower 75, which is guided along the holding part 77 in any case, manipulates the creasing device tool receiving part 34 and thus the creasing tool 35 from an inactive position IP in the direction of the active position AP along the movement path BB.

[0096] The scoring device activation 76 is formed such that, when the sawing tool holder 14 is adjusted from the upper depth adjustment position OT in the direction of the lower depth adjustment position UT, the scoring tool 35 is adjusted from the inactive position IP to the active position AP in front of the sawing tool 15, which in the active position projects in front of the guide surface 19 for engaging the workpiece W with a preferably adjustable maximum penetration depth or score depth Rmax. The score depth Rmax or the active position AP is already adjusted or adjustable when the sawing tool 15 or the sawing tool holder 14 or the saw unit 11 assumes the depth adjustment position RT in which the sawing tool 15 does not yet project in front of the guide surface 19. This adjustment of the hand saw 10 corresponds to a pure scoring or scoring operation in which the scoring unit 31 or the scoring tool 35 is utilized only for scoring the workpiece W.

[0097] So that the operator does not have to manually balance the saw unit 11 in this purely scoring or scoring operation in the depth adjustment position RT, so to speak, a scoring-only depth stop device 78 is provided. This scoring-only depth stop device 78 comprises a stop element 79, which is movably supported on the saw unit 11 and can, for example, be slidably moved, and which can be adjusted between a stop position TA, in which it strikes against a counter stop 79A arranged on the protective housing 29, and a release position TF, in which the stop element 79 can be moved alongside the counter stop 79A. As a result, the saw unit 11 and thus the sawing tool receptacle 14 are moved further from the score depth adjustment position RT in the direction of the lower adjustment position UT, in which the saw tool 15 projects in front of the guide surface 19 so as to cut into the workpiece W. For example, the stop element 79 is supported on the motor housing part 28 or on the saw unit housing 13 so as to be displaceable transversely to the longitudinal axis L.

[0098] The stopper member 79 is advantageously arranged near the hand grip 26, in particular in the upper region of the hand grip furthest from the guide device 17, so that an operator holding the hand grip 26 can operate the stopper member 79 with his thumb in a sliding guide, not shown in detail, between a stop position TA and a release position TF.

[0099] Above this, or in the region furthest from the guide device 17, the hand grip 26 further comprises a main switch operating element 60 for operating a main switch 60A which can switch the sawing drive motor 12 and the creasing device drive motor 32 on and off.

[0100] The hand saw 10 can be connected, for example by means of a connecting wire 67, to an electrical energy supply network, for example a 120V, 230V AC voltage network, etc., for supplying electrical energy to the drive motors 12, 32 and other electrical components of the hand saw 10.

[0101] Alternatively or in addition to the supply by the electrical energy supply network, an electrical energy store 67D, for example an accumulator, can also be provided, for example for the energy supply of the saw unit 10 and / or the scoring unit 31.

[0102] A connection line 68 is provided for supplying power from the saw unit 11 to the scoring unit 31. The connection line 68 is connected at its longitudinal ends by connections 68A, 68B to the saw unit 11 on the one hand and to the scoring unit 31 on the other hand. An arc-shaped connection portion 68C or an arc-shaped portion extends between the connections 68A, 68B.

[0103] However, it is also possible that the scoring unit 31 can be supplied with electrical energy by means of an electrical energy store 68D, arranged for example on or in the scoring unit housing 33.

[0104] The connection portion 68C extends in an arc starting from the longitudinal ends 68A, 68B in the direction of the protective housing 29, so that between the longitudinal ends or 68A, 68B there is an intermediate space that is optimally suitable for manipulating the components of the creasing unit 31.

[0105] In particular, the creasing device handgrip body 37 is accessible through the intermediate space between the connecting parts 68A, 68B or through the inner space of the connection part 68C, by means of which the operator can apply an operating force in the region of the creasing unit 31 in the direction of the guide surface 19. The creasing device handgrip body 37 has a handgrip surface 37A, which is provided in particular on the upper wall 38 of the creasing unit housing 33. The creasing unit housing 33 thus forms the creasing device handgrip body 37.

[0106] Hand grip surface 37A is provided with a grip recess 37B and a flat surface 37C. Extending above grip recess 37B is a grip protrusion 37D having a peripheral contour that fits, for example, within the palm of an operator's hand.

[0107] The housing 33 further has a side wall 38A extending adjacent the longitudinal side 18B of the guide body 18 and a front wall 38B extending parallel to the front end face 18B of the guide body 18.

[0108] The housing 33 of the creasing unit 31 is fixedly arranged on the support 40, so that the housing does not pivot about the depth adjustment axis TV but is non-pivotable with respect to the depth adjustment axis TV. An operator is therefore supported on the housing 33, in particular on the upper wall 38 of the housing, in order to guide the hand saw 10 in the working direction AR and can apply a force to the hand saw 10 in the direction of the guide surface 19 and / or in the working direction AR. For support on the upper surface 19A of the guide body 18, the housing 33 has a support portion 38D.

[0109] The housing 33 is advantageously designed in an ergonomically favorable manner. For example, the upper wall 38 is inclined obliquely backwards at a small angle to the working direction AR, so that the operator can apply an operating force to the housing 38 and thus to the hand saw 10 forwards in the working direction AR. The upper wall 38 or the housing 33 advantageously has a grip projection 38C, which is also suitable for accommodating the creasing device drive motor 32 underneath. The operator can be supported on the grip projection 38C or can grasp the grip projection, for example with the palm of the hand. This results in a particularly ergonomic operating concept.

[0110] That is, the operator BE, shown diagrammatically, for example, holds the hand grip 26 with one hand to guide the hand saw 10, which also operates the main switch 60 and the operating element 61A, and with the other hand, optionally holds the hand grip 27, as shown as hand position H1 in FIG. 28, or is supported by the creasing device hand grip body 37 or housing 38, as shown as hand position H2.

[0111] An alternative operating concept, or one which is envisaged in addition to the handgrip 37, envisages an additional creasing device handgrip body 337. The handgrip body 337 is, for example, rod-shaped and has a handgrip surface 337A for gripping by the operator BE. The handgrip body 337 is attached to the protective housing 29 by means of a support 337B and projects from the protective housing in the direction of the creasing unit 31.

[0112] The creasing unit 31 is disposed between the hand grip body 337 and the guide body 18, and an intermediate space Z exists between the hand grip body 337 and the upper surface of the housing 33 of the creasing unit 31 opposite the guide body 18, and an operator can pass through this intermediate space to grasp the hand grip body 337.

[0113] The two handgrip bodies 37 and 337 extend transversely, in particular perpendicularly, along the longitudinal axis L38 of the guide body 18. The two handgrip bodies 337 and 37 preferably extend up to the so-called tool-free longitudinal side 18B of the guide body 18. Preferably, the two handgrip bodies 37 and 337 extend from the longitudinal or short side 18B in the direction of the longitudinal side 18A on which the tools 15, 35 are arranged over substantially the entire lateral width of the guide body 18, so that the two handgrip bodies provide the operator with an ergonomic support for guiding the hand saw 10.

[0114] Furthermore, the saw unit 11 or the sawing tool holder 14 can be locked in the upper depth adjustment position OT by means of a locking device 61. An operating element 61A of the locking device 61, which is formed, for example, as a push-on operating element, is arranged in the upper region of the handgrip 26 or in the region furthest from the guide device 17. By operating the operating element 61A, it is possible to disengage the operating element from a counter contour 61B, for example a rear engagement contour, so that the saw unit 11 is unlocked for adjustment from the upper depth adjustment position OT to one of the lower depth adjustment positions UT or to the stitch depth adjustment position RT.

[0115] The groove depth adjustment position RT and the other lower depth adjustment position UT can also be adjusted using a sawing depth adjustment device 62 of the handheld saw 10. The sawing depth adjustment device 62 includes a depth stopper guide 63 that extends in an arc shape around the sawing depth adjustment bearing 16.

[0116] It is advantageous if, alongside the depth stop guide 63, likewise at least in the region of the creasing device activation part 76, a guide link 74 is also arranged which runs in an arc about the depth adjustment axis TS.

[0117] A depth stop 64 is adjustably, e.g. displaceably, supported in a depth stop guide 63 to various depth adjustment positions. The depth stop guide 63 comprises, e.g., a guide groove, a guide slot, or the like. The depth stop 64 can be fixed in place relative to the depth stop guide 63 by a fastening 65, e.g., a locking fastening, a clamping fastening, or the like.

[0118] A stopper body 66 is arranged on the saw unit 11 movable around the depth adjustment axis TS, and this stopper body protrudes in the direction of the depth adjustment stopper 64 and strikes against the depth adjustment stopper at a depth adjustment position adjusted by the depth adjustment stopper.

[0119] The creasing unit 31, in particular its creasing device support 80, is supported by a support 40 which is rotatable about a bevel cutting axis G, by means of a creasing device depth adjustment bearing 36 so as to be rotatable about a depth adjustment axis TV. The creasing device depth adjustment bearing 36 comprises a bearing base 86 which is attached to the support 40. The bearing base 86 comprises a support plate 86A, for example a flange or flange body, from which a shaft member 86B projects. The support plate 86A is attached to a base wall 29A of the protective housing 29 by means of screws 86C, whereby the shaft member 86B projects from the base wall 29A.

[0120] A bearing sleeve 86E is disposed on the outer periphery of the shaft member 86B, and a bearing member 86F is also disposed on the outer periphery of the bearing sleeve. That is, the bearing sleeve 86E engages with a bearing receiving portion of the bearing member 86F, so that the bearing member 86F is supported by the bearing sleeve 86E so as to be rotatable about the depth adjustment axis TV. The bearing member 86F is, for example, fixedly connected to the creasing device support 80 and is, for example, received in a receiving portion of the creasing device support.

[0121] The bearing sleeve 86E is an option for improving the rotation or pivoting about the depth adjustment axis TV. To that end, the bearing sleeve 86E improves the longitudinal displaceability of the creasing device support 80, and thus of the creasing unit 31, about the lateral adjustment axis QS in order to adjust the creasing device tool receptacle 34 relative to the sawing tool receptacle 14 and thus the creasing tool 35 relative to the saw tool 15 in mutually aligned axes, so that the creasing marks made by the creasing tool 35 are aligned with the saw cuts made by the saw tool 15. Advantageously, the lateral adjustment axis QS simultaneously corresponds to the depth adjustment axis TV.

[0122] The lateral adjustment device 87 is used to adjust the creasing tool tool receptacle 34 with respect to the lateral adjustment axis QS. The lateral adjustment device 87 comprises, for example, an adjustment screw as adjustment member 87A, the head of which constitutes the operating element 87B. The operating element 87B can be provided with a handle, for example a corrugation or similar, on the radially outer side, which facilitates the operation by the operator BE. The threaded portion 87C engages in an adjustment receptacle 86D of the shaft member 86B and is screwed into the adjustment receptacle. By turning the adjustment screw or adjustment member 87A, the position of the operating element 87B can thus be adjusted along the lateral adjustment axis QS. That is to say, the threaded portion 87C is screwed, so to speak, into the adjustment receptacle 86D or unscrewed from it.

[0123] The operating element 87B projects in front of the shaft part 86B by means of a projection, e.g. a flange, which projects radially in front of the lateral adjustment axis QS, and can thereby support the bearing sleeve 86E and / or the bearing part 86F on said projection. When the threaded part 87C is screwed into the adjustment receptacle 86D, the operating element 87B thus entrains the bearing part 86F along the lateral adjustment axis QS in the direction of the support plate 86A of the bearing base 86, thereby adjusting the creasing tool tool receptacle 34 in the sense of being away from the tool longitudinal side surface 18A of the guide body 18.

[0124] The spring 86H acts in the direction opposite to this adjustment direction, it is supported on the one hand by the support plate 86A and on the other hand by the bearing member 86F and therefore acts with a force in the direction of the operating element 87B. The spring 86H engages in a spring receiving portion 86G of the bearing member 86F which is formed, for example, as a circumferential groove extending about the lateral adjustment axis QS. The bearing member 86F, the bearing sleeve 86E and the shaft member 86B pass through the spring 86H.

[0125] By rotating the operating element 87B about the lateral adjustment axis QS, the position of the creasing device tool receptacle 34 and thus the creasing tool 35 can be adjusted in opposite directions relative to the lateral adjustment axis QS, for example by up to 2.5 to 4 mm from the central position, relative to the longitudinal axis L of the guide body 18 and / or the cutting axis that can be made by the saw tool 15.

[0126] A locking device 88 is used for fixing, in particular rotationally fixing, the operating element 87B or the adjustment member 87A. The locking device 88 comprises a clip-like spring 88A or alternatively 188A, at whose free end a locking member 88B is formed. The locking spring 88B, 188B is in locking engagement with a locking reception 88C, which is arranged on the radial outer periphery of the operating element 87B relative to the lateral adjustment axis QS. By rotating the operating element 87B, the locking member 88B moves out of the locking reception 88C and locks into the next locking reception 88C adjacent in the circumferential direction. The locking device 88 thus fixes the lateral adjustment device 87 with respect to the respectively adjusted lateral adjustment of the creasing device tool reception 34.

[0127] The object 72 is arranged on the object arm 90, i.e. in the free end region of the object arm. A rotary bearing 90A for a wheel 90B is arranged there, which can rotate about a rotary axis D90 by means of the rotary bearing 90A in the free end region of the object arm 90, which is a link follower 75, i.e. by means of which the wheel 90 can roll on the guide link 74.

[0128] The object arm 90 is supported by a bearing 91 so as to be pivotable about a pivot axis which corresponds in this case to the depth adjustment axis TV relative to the scoring device support 80 of the scoring unit 31, whereby the link follower 75 has different angular positions depending on the pivot position of the object arm 90 relative to the depth adjustment axis TV or relative to the scoring device support 80, whereby by pivoting the object arm 90 in the active position AP relative to the scoring device support 80, different penetration depths of the scoring tool 35 into the workpiece W or different distances which the scoring tool 35 projects in front of the guide surface 19 can be adjusted. The object arm 90 therefore forms part of the scoring device depth adjustment means 95.

[0129] An operating arm 92 projects from the object arm 90 at an angle from the bearing 91. The operating arm 92 is provided with an operating surface 92A, on which an adjustment body 93 acts. By adjusting the relative position of the adjustment body 93 with respect to the operating surface 92A, the object arm 90, and thus the link follower 75, can be adjusted in such a way that it has different operating distances BA relative to the creasing tool tool receptacle 34. The link follower 75, and thus the object 72 and the creasing tool tool receptacle 34, project opposite each other in the form of arms from the bearing 81 of the creasing tool support 80.

[0130] The adjustment body 93 supports the operating arm 92 against the force of a spring assembly 94. The spring assembly 94 comprises a coil spring 94A which is fixed on the one hand to the scoring device support 80 and on the other hand to the operated body arm 90 and which urges it in a certain manner towards the support 90 or towards the scoring device tool receptacle 34. The adjustment body 93, on the other hand, acts in the opposite direction, i.e. in the sense of adjusting the operated body arm 90 from the scoring device support 80 and thus in the sense of increasing the operating distance between the operated body 72 and the scoring device tool receptacle 34.

[0131] The adjustment body 93 is supported so as to be displaceable along an axis SA relative to the creasing tool support 80. Furthermore, the adjustment body 93 is supported so as to be displaceable transversely to the axis SA, in this case transversely at a right angle, along an axis SB, this degree of freedom of movement being assigned to the creasing tool depth adjustment means 95.

[0132] The adjustment body 93 has a longitudinal end 93A at which an adjustment surface 93B is arranged for engagement with the operating surface 92A of the operating arm 92. Between the longitudinal end 93A and the operating end 93B extends an intermediate portion 93C of the adjustment body 93, in the middle of which the adjustment body has an adjustment contour 93D.

[0133] The adjustment body 93 is supported displaceably with respect to the adjustment axis SA in a bearing body 96, which is designed, for example, as a housing. For example, the bearing body 96 has bearing receptacles 96A, 96C, which are arranged in the walls or bearing parts 96B, 96D of the bearing body 96. A central part 93C of the adjustment body 93 extends between the bearing receptacles 96A, 96C, and the adjustment body 93 projects in front of the bearing body 96 on the opposite sides, namely, on the one hand, with an adjustment surface 93B, which engages with the operating surface 92A of the operating arm 92, and, on the other hand, with an operating end or operating element 93E, on which a grip surface or similar other adjustment surface for operating by the operator is arranged.

[0134] That is, the operator can, for example, pull the operating element 93E in the direction of the adjustment axis SA, so that the adjustment body 93 is disengaged from the operating surface 92A, whereby the spring assembly 94 can operate the operated body arm 90 from the activation position AK in a direction away from the guide link 74 to the deactivation position DK. In the deactivation position DK, the link follower 75 is not engaged with the guide link 74 and has, for example, a distance F relative to the guide link 74 (FIG. 7), whereby the entrainment connection of the entrainment device 70 between the saw unit 11 and the scoring unit 31 is released. The saw unit 11 can thus be adjusted between its depth adjustment positions OT and UT without the scoring unit 11 being adjusted about the depth adjustment axis TV. The scoring tool 35 remains retracted behind the guide surface 19, i.e. is inactive.

[0135] That is, the adjustment body 93 is a component of a deactivation device 97 for deactivating or activating the entrainment device 70 .

[0136] The adjustment body 93 is loaded in its activation position AK by a spring 96E which is supported, for example, by the adjustment body 93, for example at a step close to the central portion 93C, and by a wall 96D of the bearing body 96.

[0137] The operating end or operating element 93E is preferably provided with a rotation prevention feature 93F which is fixed relative to the scoring device support 80, for example a plane on which the operating end 93F is supported non-rotatably relative to the adjustment axis SA.

[0138] The adjustment contour 93D forms one component of the creasing tool depth adjustment means 95. The adjustment contour 93D, arranged on the radial periphery of the central part 93C of the adjustment body 93, engages with an adjustment receiving part 98, the position of which is adjustable along an adjustment axis SB and thus transversely to the adjustment axis SA by means of a depth adjustment member 99, for example an adjustment screw. The operator can operate the depth adjustment member 99 by means of an operating element 99A.

[0139] Alternatively, it may be possible for the adjustment body 93 to be supported so as to be pivotable about the adjustment axis SA and for the adjustment contour 93D to be an eccentric contour, whereby by rotating the adjustment body 93 about the adjustment axis SA, parts of the adjustment contour 93D which protrude to different degrees radially forward of the adjustment axis SA are supported in the adjustment receiving portion 98, whereby the adjustment surface 93B of the adjustment body 93 assumes different positions relative to the adjustment axis SB.

[0140] The depth adjustment member 99 has, for example, an operating element 99A, for example a head, from which a threaded portion 99B projects, which is rotatably supported in a component that is stationary relative to the creasing device support 80, for example a bearing body 96, and which is screwed into a body 98A that provides an adjustment receiving portion 98.

[0141] By screwing the depth adjustment member 99, the lateral position of the adjustment receiving portion 98, which is, for example, U-shaped, can be adjusted transversely to the adjustment axis SA, for example along the adjustment axis SB, whereby at the same time the position of the adjustment surface 93B, and thus of the operating surface 92A of the operating arm 92 abutting the adjustment surface, is adjusted transversely to the adjustment axis SA.

[0142] In the adjustment accommodation portion 98, the adjustment body 93 is accommodated so as to be displaceable along the adjustment axis SA, whereby the creasing device depth adjustment means 95 maintains its respective adjusted depth adjustment position even when the deactivation device 97 is operated by displacing the adjustment body 93 along the adjustment axis SA.

[0143] Between the scoring unit housing 33 forming the scoring device handgrip body 37 and the saw unit housing 13, relative to the longitudinal axis L of the guide device 17 and the guide body 18, there is an intermediate space 33B in which one or more of the operating elements for the operator of the scoring unit 31 arranged to be operated by the operator, such as the operating element 93E of the deactivation device 97, the operating element 87B of the lateral adjustment device 97 or the operating element 99A of the scoring device depth adjustment means 95, can be easily accessed.

[0144] The hand saw 10 is short with respect to the longitudinal axis L of its guide body 18, i.e. between the end faces 18C, 18D. This is achieved by the particularly compact creasing device module 30 or creasing unit 31. It is furthermore advantageous that the depth adjustment axis TV is arranged between the tool receptacles 14 and 34. This means that the hand saw 10 is therefore very short, i.e. not top-heavy, so to speak, in its front area in the working direction AR.

[0145] The arrangement of the tool receptacles 14, 34 and thus the saw tool 15 and the scoring tool 35 close to or even directly on the longitudinal side 18A of the guide body 18 also contributes to the ease of use of the hand saw 10. Among other things, this allows a good view of the entry area of ​​the two tools 15, 35 into the workpiece W. In addition, the bevel cutting axis G runs immediately next to the longitudinal side 18A, so that the tools 14, 35 can be optimally swiveled not only around this longitudinal side 18A but also around the longitudinal narrow side 204 of the guide rail 200, 200A.

[0146] Furthermore, the hand saw 10 provides an advantageous suction concept for dust, particles, etc., generated when sawing and scoring the workpiece W.

[0147] The sawing tool receiving space 48 and the scoring tool receiving space 49 are equipped with a sawing dust discharge device 48A and a scoring tool dust discharge device 49A. The receiving spaces 48, 49 extend up to the guide surface 19, in which the sawing tool 15 protrudes from the respective receiving space 48, 49 in front of the guide surface 19 in one of the lower depth adjustment positions UT and the scoring tool 35 in its active position AP. The dust discharge devices 48A, 49A are flow-connected to a dust discharge connection 52 which is arranged rearwardly in the working direction AR on the hand saw 10, in particular rearwardly and upwardly on the protective housing 29. A suction device SV, for example a suction hose SL of a work suction device, can be connected to the dust discharge connection 52, which is formed, for example, as a connecting pipe piece, in order to suck out dust, particles or the like which are generated during the sawing operation of the hand saw 10.

[0148] The protective housing 29 has a protective housing part 40A which is stationary relative to the support 40 and which is covered by a protective housing cover 41 which can be advantageously removed from the protective housing part 40A for maintenance purposes. Between the protective housing part 40A and the protective housing cover 41, accommodation spaces 48, 49 are formed for parts of the tools 15, 35 which are upper relative to the guide device 17. The protective housing part 40A has, for example, a base wall 29A which is located opposite the cover wall 42 of the protective housing cover 41.

[0149] Between the base wall 29A and the cover wall 42 there is a gap 42A, by means of which the tool 15, 35 can be moved out of the protective housing 29 so that it projects in front of the guide surface 19. Next to the gap 42A extends an inclined wall section 42B of the cover wall 42, which wall section is inclined obliquely in the sense that the lateral distance between the cover wall 42 and the base wall 29A is smaller in the region of the gap 42A and / or is smaller in the region of the saw tool receiving space 48, farther from the guide surface 19, in which the sawing tool receiving part 14 is arranged.

[0150] Side walls 43C, 43 and 44C, 44 abutting and engaging with each other at their end faces protrude at an angle from the base wall 29A and the cover wall 42, whereby the side walls 43-44 define receiving spaces 48,49.

[0151] The side walls 43C, 43 are for example rear side walls in the working direction AR. The side walls 44C, 44 extend along the upper or furthest part of the protective housing 29 from the guide device 17 and along the front part of the protective housing 29 in the working direction AR.

[0152] The protective housing 29 has a projection 45 in which a scoring tool receiving space 49 is provided. The cover wall 42 extends up to the projection 45, where a side wall 46 projects from the cover wall 42 on the side facing away from the guide device 17 and a side wall 47 projects angularly forward in the working direction, i.e. towards the end face 18C, which side walls abut on the end face side against a protective housing part 40A which is stationary relative to the support 40, so that the projection 45 as a whole also provides, with the exception of the through opening for the scoring tool 35, a scoring tool receiving space 49 which is closed towards the guide surface 19.

[0153] In that case, it would in principle be possible to suction the two receiving spaces 48, 49 via the dust exhaust connection 52 without further fluid engineering measures. However, in this case it is not taken into account that when the scoring tool 35 cuts into the workpiece upper surface WO, it will project particles towards the sawing tool 15, which will significantly damage the cutting edge of the preceding sawing tool 15 in the working direction AR. To solve this problem, some measures are advantageous, which are explained below.

[0154] A dust discharge passage 50 extends in the region of the protective housing 29 facing away from the guide device 17 for sucking out dust, particles or the like. The dust discharge passage 50 is defined in the cover 41 or protective housing part 40A by the side walls 44, 44C on the one hand and by intermediate walls 51, 51C located opposite the side walls on the other hand. The dust discharge passage 50 extends from a region in front of the saw tool 15 in the working direction AR to a dust discharge connection 52 arranged behind in the working direction AR.

[0155] In that case, it would in principle be possible for the scoring tool receiving space 49 to communicate directly with the dust discharge channel 50. However, it is advantageous if at least in the region where the saw tool 15 and the scoring tool 35 directly face each other, i.e. close to the guide surface 19, there is a separation of the saw tool receiving space 48 from the scoring tool receiving space 49, i.e. in the form of a partition wall 55. The partition wall 55 advantageously has a partition wall part 55C which is fixed relative to the protective housing 29, for example to the protective housing part 40A. The partition wall 55, in particular the partition wall part 55C, extends up to the guide surface 19 and thus stands between the saw tool 15 and the scoring tool 35.

[0156] On the side facing the scoring tool 35, the partition part 55C or the partition 55 advantageously has a flow guide surface 55E, for example an inlet slope or impact surface 55D, against which the particles generated by the scoring tool 35 impact and are deflected in the direction of the dust discharge passage 50, i.e. so that they do not flow further towards the saw tool 15.

[0157] In the region of the partition wall portion 55C away from the guide surface 19, the scoring tool receiving space 49 opens into an outlet opening 52C into the dust discharge passage 50, whereby the particles generated by the scoring tool 35, shown as particle flow PV by black arrows in FIG. 18, are mixed with a particle flow PS containing particles generated by the saw tool 15, shown by white arrows.

[0158] An alternative concept is shown in FIG. 21, in which the aforementioned partition wall 55 between the scoring tool 35 and the saw tool 15 is also advantageous and is envisaged. However, there, the receiving spaces 48, 49 are completely separated from one another and the scoring tool receiving space 49 has a dust discharge connection 52B separate from the dust discharge connection 52 for discharging the particles of the scoring unit 31, to which a separate suction hose SL2 can be connected. For example, the dust discharge connection 52B is provided with a connecting piece for connecting the suction hose SL2, which connecting piece is also flow-connected, for example, with a suction device SV in order to generate a particle flow PV which carries away the particles of the scoring unit 31. The particles generated by the saw tool 15 flow as a particle flow PS separated from the particle flow PV to the suction device SV via the dust discharge connection 52.

[0159] The dust discharge connection 52, 52B is preferably provided with a form-locking contour 52A for holding the suction hose SL, SL2 in a form-locking manner, e.g. a rotary form-locking contour, a plug-in form-locking contour, etc. Furthermore, it is advantageous if the dust discharge connection 52, 52B has a rotary bearing 52D, by means of which the suction hose SL, SL2 is rotatably supported on the hand saw 10.

[0160] The arrangement of the tool receptacles 14, 34 and thus the tools 15, 35 directly on the so-called free longitudinal side 18A of the guide body 17 already provides optimal visibility of these tools. Furthermore, a viewing window 54 in the cover wall 42, in particular in the lower end region of the cover wall close to the guide surface 19, is also advantageous.

[0161] The viewing window 54 is arranged in the area of ​​the cover wall 42 where the scoring tool 35 is located opposite the sawing tool 15. This makes it possible to view the two tools through the viewing window 54.

[0162] The viewing window 54 can be closed by a fixed transparent wall, for example made of plastic, so that the receiving spaces 48, 49 are closed by this wall. In this case, however, a cover element 53, in particular a window body or a window cover element, is provided.

[0163] The cover element 53 has a saw tool part 53A and a creasing tool part 53B, the saw tool part being assigned to the saw tool 15 and the creasing tool part being assigned to the creasing tool 35, and in either case is located opposite the saw tool or the creasing tool when the cover element 53 is adjusted to a cover position ABS so that the cover element covers the viewing window 54.

[0164] The cover element 53 is adjustable by means of bearings 53D, in particular sliding bearings, in the cover wall 42 between a cover position ABS and an open position OS, in which the cover element opens the viewing window 54 at least partially, in particular the part of the viewing window facing the guide surface 19. For gripping the cover element 53, an operating contour 53C, for example a rib or the like, is advantageously provided. By sliding the cover element 53 in one direction P1, it is adjustable to the open position OS and by sliding it in the opposite direction P2, it is adjustable to the cover position ABS.

[0165] The cover element 53 has a partition wall portion 56 of the partition wall 55. In the cover position ABS and in the open position OS, the partition wall portion 56 engages or comes into contact with the stationary partition wall portion 55A in a telescopic manner or so to speak, such that the partition wall 55 closes. The partition wall portion 56 has, for example, a partition wall receiving portion 57 with side walls 56A facing each other. The stationary partition wall portion 55A can engage in the partition wall receiving portion 57, which in the open position OS engages more deeply in the partition wall receiving portion 57 than when in the cover position ABS.

[0166] Furthermore, the cover wall 42 is provided with cavities 58, 59, through which the tool holders 14, 34 are accessible for tool change of the tools 15, 35. It should be noted here that it is advantageous for the holding elements 14A, 34A to have identical operating contours for tools, e.g. a slit for a screwdriver, with which the holding elements 14A, 34A can be removed for tool change and fixed in the tool holders 14, 34.

[0167] For the tool change of the creasing tool 35, a blocking device 85 is provided. The blocking device 85 comprises a creasing tool blocking element 85A which, in a blocking position, engages in a block receptacle 85B which is arranged, for example, on the output shaft of the transmission 84 and which is connected to the creasing tool tool receptacle 34 in a rotationally immovable manner. The block element 85A is axially displaceable along an adjustment axis S85 in a guide 85C. By pressing on an operating contour 85D in the end region of the block element 85A which freely projects in front of the guide 85C, the operator can bring the block element 85A into engagement with the block receptacle 85B, i.e. into a blocking position in which the creasing tool tool receptacle 34 is blocked in a rotationally immovable manner. This blocking position can be released, for example, by pulling the block element 85A away from the block receptacle 85B. Advantageously, a spring 85E, shown diagrammatically in the drawings, is provided, which biases the blocking member 85A into a release position in which the blocking member 85A does not engage the blocking receiving portion 85B.

[0168] Alternatively or additionally, a motor drive 85F, e.g. an electromagnet, an electric linear drive, etc., can be provided, which is capable of adjusting the blocking member 85A into a blocking position and / or into a release position. For example, the drive 85F can act in a blocking position, whereas the spring 85E acts in a release position. To switch the drive 85E, an electric switch 85G is provided, which can be operated, e.g. by pressing or the like, by an operator.

[0169] For safe and easy tool changing of the saw tool 15 and / or the scoring tool 35 a safety device 100 is used.

[0170] When the safety device 100 is adjusted to its safety position SG, it blocks the switch 60A to prevent the drive motors 12, 32 from being switched on, and when adjusted to the saw operating position FS, it releases the switch 60A to allow the drive motors 12, 32 to be switched on. Thus, for tool changes, the two drive motors 12, 32 can be locked against being on simultaneously by the safety device 100.

[0171] The safety device 100 comprises an operating element 101, which is pivotably supported on the protective housing 29 about a pivot axis DB and / or on the hand grip 26. When the operating element 101 is pivoted away from the protective housing 29 or the hand grip 26, i.e. when it is positioned in the safety position SG shown in Figs. 31 and 32, the operator can immediately recognize the safety position SG. The operating element 101 comprises a grip part 102 with lateral legs, between which a part of the protective housing 29 is accommodated in the sawing position FS. The operating element 101 therefore, so to speak, fits snugly against the protective housing 29 in the sawing position FS and does not protrude in front of the protective housing in any case. The operator can grip the operating element 101 with the grip part 102.

[0172] A motor drive 101A for the operating element 101 is also possible, such as an electric motor shown diagrammatically, which can drive the operating element 101 in a pivoting or rotational manner and which can be switched on and off by an electric switch 101B shown diagrammatically, which can be operated by an operator, for example by pressing.

[0173] The grip part 101 is arranged in the free end region of an operating arm 103 of the operating element 101, which is pivotably mounted in the protective housing 29 by means of a bearing 104 about a pivot axis DB.

[0174] The operating member 101 operates a switch-blocking member 105 to block the switch 60A. The blocking member 105 has an arm 106 which can be operated, for example displaceably and / or pivotably, by the operating element 101, in the free end region of which a rear engagement contour 107, for example a hook, is arranged which rearwardly engages with the operating element 60 of the switch 60A when the switch-blocking member 105 is in the blocking position, so that the operating element cannot operate the switch 60A in the direction of the switched-on position.

[0175] It is furthermore advantageous if the operating element 101 is designed to disengage the locking device 61. For this purpose, for example, an actuator 108, e.g. a cam disk or the like, is kinematically connected to the operating element 101, for example in the sense of rotation about an axis DB, the actuator acting on an adjustment member 109 which, when the operating element 101 is adjusted to a safety position SG, operates the operating element 61A out of engagement with the counter contour 61B. The saw unit 11 can thus be swiveled about the depth adjustment axis TS from an upper depth adjustment position OT into a tool change depth adjustment position WT which is suitable for a tool change of the saw tool 15.

[0176] To lock the tool change depth adjustment position WT, a locking device 120 is provided. The locking device 120 has a locking element 121 that is pivotably mounted about the pivot axis S12. The locking element 121 has a locking projection 122 for locking into a locking receiving portion 123 that is arranged in a fixed position in the protective housing 29, for example next to the depth stop guide 63. A spring 124 biases the locking element 121 in the direction of a locking position in which it can lock into the locking receiving portion 123.

[0177] The locking device 120 is activatable and deactivatable by the safety device 100, i.e. when the operating element 101 is adjusted to the safety position SG, the safety device activates the locking device 120. The operating element 101 is movement-coupled, for example in the sense of a rotational movement, with the actuator 110 for activating and deactivating the locking device 120. The operating mechanism 110 has an operating link 111 on its side facing the locking element 121, which acts on an operating leg 125 of the locking member 121, precisely in the sense that when the operating element 101 is adjusted to the safety position SG, the locking member 121 is released by the spring 124 to lock into the locking receiving portion 123 and / or the spring 124 is preloaded, whereas when the operating element 101 is adjusted to the saw operating position FS, the locking member 121 is held permanently out of engagement with the locking receiving portion 123 against the action of the spring 124 and / or the spring 124 does not have sufficient spring tension to lock the locking member 121.

[0178] When the sawing tool receptacle 14 is adjusted to the tool change depth adjustment position WT, the sawing tool receptacle is located in the area of ​​the cavity 58. By means of the entrainment device 70, the creasing tool tool receptacle 34 is also adjusted to the tool change depth adjustment position, in which it is located in the cavity 59. The tool receptacles 14, 34 are thus accessible for the tool change of the tools 15, 35.

[0179] Furthermore, the operating element 101 cooperates with or has an influence on the blocking device 130, by which the sawing tool holder 14 can be blocked from pivoting about the tool rotation axis DS.

[0180] The blocking device 130 comprises a sawing blocking element 131 which, in a blocking position, engages with at least one blocking contour 132 which is connected non-rotatably with the sawing tool receptacle 14. Several blocking contours 132, for example in the form of blocking recesses 133, are arranged on a fan wheel 134 which is rotationally connected with the sawing drive motor 12 and / or with the sawing tool receptacle 14. The fan wheel 134 comprises, for example, fan blades 135. The blocking recesses 133 are arranged on the radial circumference of the fan wheel 134.

[0181] The motor drive 101A of the safety device 100 simultaneously forms a drive for adjusting the sawing blocking member 131 between its blocking position, in which it blocks the sawing tool holder 14, and a releasing position, in which it releases it.

[0182] The sawing block member 131 has at one longitudinal end a block projection 136 which can engage in one of the block recesses 133 when the corresponding rotational position of the fan wheel places the block recess opposite the block projection. The other longitudinal end of the sawing block member 131 is movably, in particular slidably, accommodated in a bearing not visible in the figure and is loaded in the direction of the blocking position by a spring 137. By adjusting the operating element 101 to the safety position SG, the sawing block member 131 is either released for operation by the spring 137 or the spring 137 is preloaded by the operating element 101 for operating the sawing block member 131, whereby the block projection 136 is preloaded for engagement with one of the block recesses 133. The sawing tool holder 14 is then rotated slightly, causing one of the block notches 133 to move into a front position relative to the block projection 136, whereby this block projection engages with the block notch 133 and fixes the sawing tool holder 14 against further rotation.

[0183] By means of the safety device 100 adjusted to the safety position SG, switching on of the creasing device drive motor 32 is electrically blocked and thus prevented. The operator can therefore safely block the creasing device tool receptacle 34 by manually operating the blocking device 85 and replace the creasing tool 35.

[0184] Alternatively or in addition to this manual operation, a mechanical engaging connection, not shown in the drawing, can be provided between the creasing device block member 85A and the sawing block member 131, so that when the sawing block member 131 is adjusted to the blocking position, the creasing device block member 85A is simultaneously adjusted to the blocking position.

[0185] An electrical connection is also possible if a mechanical connection between the block members 85A and 131 is not possible or difficult, for example because the gearing which creates the connection between the block members 85A and 131 is mechanically complex or requires a large amount of space. For example, a sensor 101C is provided to detect the position of the safety device 100, for example the position of the operating element 101. The sensor 101C detects, for example, whether the safety device 100 is in the safety position SG or in the sawing position FS. In the sawing position FS, the sensor 101C controls, for example, a drive motor.

[0186] The entraining device 70 is shown diagrammatically in Fig. 33. It can be seen that the operator can move the creasing unit 31 from the inactive position to the active position by pivoting the saw unit 11, and the force transmission is performed by the entraining device 70.

[0187] The creasing device drive 32B of the creasing unit 31 is shown diagrammatically, for example a belt 32C or another similar force transmission element which is operatively connected to the saw drive motor 32 and driven by said saw drive motor to drive the creasing device tool receptacle 34. For tensioning the belt, for example tension rollers, in particular sprung tension rollers and / or length compensation devices, etc., not shown in the drawing, can be provided.

[0188] In the embodiment of the hand saw 10C according to Fig. 34, a driving device 70C is provided, by which the scoring unit 31 is driven when the saw unit 11 is operated from the upper depth adjustment position shown in the drawing towards the lower depth adjustment position in which the saw tool 15 projects in front of the guide surface 19. However, the scoring unit 31C is biased by the spring assembly 39C towards the active position in which the scoring tool 35 projects in front of the guide surface 19, and not towards the inactive position as in the hand saw 10.

[0189] As an operating body 71C, the saw unit 11 is provided with a driving or stop surface on which an operated body 72C of the scoring unit 31C is supported. The operated body 72C is arranged, for example, on an operating arm which projects from the scoring device depth adjustment bearing 36 starting from the scoring unit 31C. When the saw unit 11 is adjusted towards the lower depth adjustment position of the sawing tool housing 34, the operating body 71C, as it were, releases the operated body 72C, i.e. the spring assembly 39C can adjust the scoring unit 31C from the inactive position towards the active position.

[0190] In the active position, the scoring unit 31C advantageously bears with a stop projection 95C against a scoring device depth stop 95D of the guide device 17. The depth stop 95D can be made adjustable for adjusting different depth adjustment positions or active positions, for example when the depth stop is formed by the head of a screw which can be screwed into the guide device 17. The stop projection 95C is provided, for example, in the free end region of an arm of the scoring unit 31C which projects from the depth adjustment bearing 36.

[0191] In the embodiment of the hand saw 10D, no entrainment device is provided between the saw unit 11 and the scoring unit 31D. The scoring unit 31D is supported in the guide device 17 by the above-mentioned depth adjustment bearing 36 so as to be freely pivotable about the depth adjustment axis TV and independently of the saw unit 11, but must be manually operated by the operator. For this purpose, for example, a scoring device handgrip body 237D is provided, for example in the form of an operating knob which projects upwards from the scoring unit 31D towards the guide device 17. Furthermore, advantageously, a stop projection 95C is provided on the scoring unit 31D for striking against a depth stop 95D.

[0192] For example, a switch 60D is arranged on the hand grip body 237D in order to switch on and / or off the drive motor 32 of the creasing unit 31D. That is, the hand grip body 237D constitutes an operating body 71D for the creasing unit 31D.

[0193] For example, a rotary drive is also possible to adjust the scoring tool 35 between active and inactive positions and / or to adjust its penetration depth into the workpiece. For example, an adjustment motor 72D may be arranged on the scoring device depth adjustment bearing 36, and the scoring tool 35 can be adjusted between various depth adjustment positions by a rotary drive about a depth adjustment axis TV.

[0194] However, a motorized drive concept for adjusting the creasing unit between its inactive position and its active position is also advantageous, as will become apparent in the embodiment of the hand saw 10E. The saw unit 11 of the hand saw is, as described above, manually swiveled by the operator between one of the upper and lower depth adjustment positions by means of the depth adjustment bearing 16, while an adjustment motor 72E is provided for adjusting the creasing unit 31E. A sensor is used as the control body 71E of the entrainment device 70E, which detects the respective rotational or relative position of the saw unit 11 with respect to the guide device 17, i.e. for example the respectively adjusted depth adjustment position. The sensor or control body 71E is connected to the adjustment motor 72E of the creasing unit 31E, i.e. the controlled body, by means of a control connection, for example a wireless or wired control connection not shown in the figures, and controls this adjustment motor. Needless to say, the adjustment motor 72E is also controlled separately, i.e. is decoupled from the control body or sensor 71E. An electrical switching element 99E, in particular, can be provided for the operator to control the adjusting motor 72E individually, for example in order to score the workpiece without making saw cuts or to adjust the scoring unit 31E to an inactive position in order to only make saw cuts with the saw tool 15. Furthermore, a deactivation device 97E, for example likewise an electrical switch, is advantageous for making it possible to operate the adjusting motor 72E in the direction of the inactive position or the upper position of the scoring device tool receptacle 34E and / or to block the power supply of the adjusting motor 72E in the direction of the active position of the scoring device tool receptacle 34E.

[0195] A deactivation device 97E and / or a switching element 99E could easily be provided for controlling the rotationally driven adjusting motor 72D.

[0196] Unlike the above-mentioned creasing units, the creasing unit 31E is not supported so as to be pivotable with respect to the guide device 17, but is supported so as to be displaceable along the depth adjustment axis TVS by a sliding bearing 36E. The spring 39E biases, for example, the creasing device support 80E, on which the creasing device drive motor 32E is held, in the direction of an inactive position in which the creasing tool 35E driven by the creasing device drive motor 32E retreats behind the guide surface 19. The adjustment motor 72E acts in the opposite direction to the spring 39E, i.e. operates the creasing tool 35E in the direction of an active position, so that the creasing tool 35E protrudes in front of the guide surface 19 and can bite into the workpiece. However, the adjustment motor 72E can also be used for depth adjustment, i.e. adjustment of the penetration depth of the creasing tool 35E into the workpiece W.

[0197] The creasing unit 31F of the hand saw 10F is also linearly adjustable, i.e. along a depth adjustment axis TVS, by means of a depth adjustment bearing, in particular a sliding bearing 36F. The sliding bearing 36F comprises, for example, a guide rod or post on which a creasing device support 80F is supported so as to be displaceable relative to the depth adjustment axis TVS. The creasing device support 80F is biased by a spring assembly 39F into an inactive position in which the creasing tool 35F does not protrude in front of the guide surface 19.

[0198] The scoring tool 35F could itself comprise a saw blade or scoring blade, but like the scoring tool 35E, is advantageously a milling tool or milling head. The scoring tool 35F is driven by the scoring device drive motor 32F.

[0199] The scoring unit 31F is also adjustable, independent of the saw unit 11, between its inactive position and one or more active positions.

[0200] Unlike the hand saw 10E, however, the scoring unit 31F can be adjusted between the active and inactive positions not by a motor but manually. A spring assembly 39F loads the scoring device support 80F towards the inactive position. In the direction of the active position, a hand lever or other operating element is provided as an operating body 71F, pivotably supported on the saw unit 11, which operates a force transmission element 90F, for example a Bowden cable, a wire rope, a pneumatic or hydraulic line or the like, by manual operation, which acts on an operating body 72F, for example a hydraulic cylinder, an adjustment drive or the like, in order to adjust the scoring tool 35 towards the active position against the force of the spring assembly 39F, the movement being advantageously limited by a depth stop 95F, which is fixedly arranged on the guide device 17.

[0201] The creasing unit 31X substantially corresponds to the creasing unit 31, but has an alternative depth adjustment means 195. Whereas the depth adjustment means 95 provides the depth adjustment by means of an adjustment body 93 supporting the operating arm 92, the depth adjustment member 199 is arranged on the operated body arm 90, for example on an operating arm protrusion 92B protruding from the operating arm 92, and is supported by the adjustment body 193.

[0202] The depth adjustment member 199 has an operating element 199A connected to or having a threaded portion 199B. The threaded portion 199B is threaded into the threaded receiving portion 92C of the operating arm projection 92B. The threaded portion 199B is disposed on a threaded body 199C, which is threaded into the threaded receiving portion 92C.

[0203] The screw body 199C is connected on the one hand with the operating element 199A and on the other hand receives, for example, a pin-shaped or elongated post body 199D. The free end area of ​​the post body 199D provides an operating surface 192A by which the operated body arm 90 can be operated.

[0204] The two-part structure of the support body 199D and the threaded body 199C has the advantage that the support body 199D can be positioned relative to the threaded body 199C and fixed there, for example glued, for fixing in order to calibrate the first or initial depth adjustment position to be taken by the creasing unit 31X, thereby making it possible, for example, to compensate for manufacturing tolerances. However, it is easily possible for the depth adjustment element 199 to be one piece or for parts of the depth adjustment element, for example the support body 199D and the threaded body 199C, to be one piece.

[0205] Between the operating element 199A or the screw body 199C, which is so to speak the head of the depth adjustment member 199, and the operating arm projection 92B, a spring 199E is preferably arranged, which spring is provided for example for locking and / or frictional engagement, in order to fix, for example clamp or frictionally hold, the depth adjustment member 199 in the respectively adjusted depth adjustment position, so that, for example, unintentional adjustment movements, especially caused by vibrations or the like, can be prevented or reduced.

[0206] The creasing tool depth adjustment means 195 cooperates with a deactivation device 197 and with an adjustment body 193. The adjustment body 193, like the adjustment body 93, projects laterally from the creasing tool support 80. However, unlike the adjustment body 93, the adjustment body 193 is pivotally mounted, i.e. pivotable about a pivot axis or adjustment axis SB. The adjustment axis SB corresponds to the longitudinal axis or longitudinal extension of the adjustment body 193.

[0207] A longitudinal end or bearing end 193A of the adjustment body 193, for example in the form of a bearing pin, is pivotally supported in a bearing receptacle 196, which is fixedly arranged on the support body 80, i.e. pivotally about the adjustment axis SB. The bearing receptacle 196A is for example in the form of a receiving sleeve or receiving tube. The bearing receptacle 196A is provided, for example, in a bearing body 196 which projects from the creasing tool support body 80 transversely, in particular at a right angle, to its longitudinal extension.

[0208] The central part 193C of the adjustment body 193 has an adjustment contour 193D in which the depth adjustment member 199 is supported on the operating surface 192A. The adjustment contour 193D is arranged between the longitudinal end or bearing end 193A and an operating element 193E, for example a hand grip which projects transversely from the adjustment body 93 to the adjustment axis SB and can be comfortably gripped by an operator.

[0209] The adjustment contour 193D has adjustment parts 193G and 193H, which are formed by a peripheral shape of the adjustment contour 193D that is eccentric with respect to the pivot axis or adjustment axis SB. The adjustment part 193G is assigned to the activation position AK of the deactivation device 197 and protrudes further in front of the adjustment axis SB than the adjustment part 193H that is assigned to the deactivation position DK. The adjustment part 193H therefore does not deflect the depth adjustment member 199 so much from the adjustment axis SB, so that the operated body arm 90 is moved farther away from the operating body 71 and the guide link 74 by the spring force of the spring assembly 94 than when it is in the activation position AK. That is, in this case, the adjustment part 193G that protrudes further in front of the adjustment axis SB acts at a position where the operated body 72 is in contact with the operating body 71, which deflects or operates the operated body arm 90 in the direction of the operating body 71 so much.

[0210] The spring 196E is supported on the one hand against a step of the adjustment body 193, on whose periphery the adjustment contour 193D is provided, and on the other hand against a step on the periphery of the bearing body 196, and thus loads the adjustment body in the sense of a frictional engagement or locking in the adjusted deactivation position DK or activation position AK, respectively. For example, the spring 196E presses the radial or flange projection 193B, on whose periphery the adjustment contour 193D is arranged, against a support surface 196B, which is provided, for example, on the motor housing 33A.

[0211] When the sawing drive motor 12 is switched on and off, the creasing device drive motor 32 is periodically switched on and off by the switch 60A. However, in the deactivation position DK of the deactivation device 197, the creasing device drive motor 32 is not required. It does not matter that the creasing device drive motor 32 is powered even if the creasing unit 31 or 31X is in its deactivation position DK and / or in its inactive position IP. In that case, the creasing tool 35 is driven but does not protrude in front of the guide surface 19 in the sense of penetrating into the workpiece W and / or is accommodated in a protective housing 29. However, in this situation, it is advantageous for the creasing device drive motor 32 to be switched off, for example, by the switch 32S and / or 32S2. The switch 32S or 32S2 is a component of or assigned to a control device 32T, which is arranged, for example, in the motor housing 33A.

[0212] The motor housing 33A has, for example, a receiving or lower portion 33B and a cover 33C which, in the closed state, encapsulates or encloses the creasing device drive motor 32 and the control device 32T, so that these electrical components are protected from environmental influences.

[0213] The switch 32S or 32S2 comprises or consists of a sensor, for example magnetic or other contactless operating. The switch 32S is arranged outside the motor housing 33A, for example on a support 32H, for example on a circuit board, and communicates with the control device 32T. The switch 32S2, which is provided instead of or in addition to the switch 32S, is accommodated in a protected manner in the inner space of the motor housing 33A and is for example a component of the control device 32T. To operate the switch 32S or 32S2, an operating element 32G, for example a magnetic sensor or the like, is provided. The operating element 32G can be operated by the adjustment body 193. For example, the operating element 32G is accommodated in a holding accommodation, for example a pocket, of the adjustment body 193. The operating element 32G could also be arranged without problem in the adjustment body 93. In both cases, the operating element 32G is axially displaceable, for example along the adjustment axis SA and / or rotatable about the adjustment axis SA or SB, thereby changing its position relative to the sensor or switch 32S or 32S2. The switch 32S communicates with the control device 32T and transmits the respective position of the operating element 32G to the control device. Depending on the respective position of the operating element 32G relative to the switch 32S, the switch or control device 32T switches the creasing device drive motor 32 on or off, i.e. on in the activation position AK of the adjustment body 93 or 193 and off in the deactivation position DK.

[0214] In the following, the scoring tool 35 is described in the embodiments 35A, 35B, 35C and 35D. The above description also applies to the scoring tool 35 in general insofar as the aforementioned scoring tools 35 to 35D have the same components.

[0215] For example, each scoring tool 35 has a blade body 310 having mutually opposing flat surfaces 311, 312. In the case of the scoring tools 35A, 35B, 35C, 35D, the scoring tooth arrangements 300A, 300B, 300C, 300D are arranged on the radial outer periphery of the blade body 310. The scoring tooth arrangements 300A, 300B, 300C, 300D have different numbers of scoring teeth 301-304. For example, score tooth arrangement 300A has score teeth 301, 302, 303, and 304, i.e., a total of four score teeth, whereas score tooth arrangement 300B has only three score teeth 301, 302, and 303, score tooth arrangement 300C has only one score tooth 301, and score tooth arrangement 300D has only two score teeth 301 and 302.

[0216] The blade body 310 has at its center ZV a machine receiving portion 315 for removably mounting to the creasing device tool receiving portion 34 of the saw 10 .

[0217] When the scoring tool 35 is attached to the saw 10, the central axis or rotation axis DV of the scoring tool 35, which is also the rotation axis of the scoring device tool holder 34, passes through the center ZV.

[0218] The score teeth 301-304 project with their main cutting edge 350 in front of the radial periphery 313 of the blade body 310 or scoring tool 35 so that the score teeth are available therefor for cutting into the work surface WO of the workpiece W.

[0219] That is, the groove teeth 301 to 304 protrude in front of the radially outer peripheral surface 314 of the blade body 310. The peripheral surface 314 has a substantially cylindrical mantle shape.

[0220] There is a relatively large angular distance between the score teeth 301-304. For example, in the score tool 35, an angular distance WA of approximately or exactly 90° is provided between the score teeth 301-304. In the case of the score tool 35B, for example, an angular distance WB of 120° is provided between the score teeth 301-303. In the score tool 35C, there is only a single score tooth 301, which results in an angular distance of 360°. If there are two score teeth 301, 302 in the score tooth arrangement 300D, they are preferably equidistant from each other and have an angular distance WD of 180°.

[0221] At this point it should be mentioned that it is of course possible to provide different angular distances between the score teeth. For clarity, for example, the score teeth 303 are shown in dashed lines in the score tool 35A. These score teeth could for example be absent.

[0222] A chip space 316 is provided in front of each of the score teeth 301-304. The chip space 316 is constituted by a recess 317 in the blade body 310, which recess is recessed radially inwards from the radial outer periphery 313 and is in particular formed in the form of an approximately U-shaped or V-shaped recess. Each recess 317 or each chip space 316 has a bottom 318 from which lateral surfaces 319, 320 extend in the direction of the radial outer periphery 313. The lateral surfaces 319, 320 are essentially straight. The lateral surface 319 faces towards the main cutting edge 350 of the respective score tooth 301-304, whereas the lateral surface 320 of the chip space 316 is located, so to speak, opposite this main cutting edge 350. Between the lateral surface 320 and the radial outer periphery 313 or the circumferential surface 314 an arc-shaped transition portion 321 extends.

[0223] Apart from the chip space 316, the radial periphery 313 extends in a circular or annular shape about the central axis of the blade body 310 or the scoring tool 35, i.e. the axis of rotation DV. For example, this arcuate shape extends over an angle of at least 30°, preferably at least 40° or more, relative to the axis of rotation DV, even when there are four scoring teeth 301-304, as in the case of the scoring tool 35A.

[0224] Each of the score teeth 301-304 has a cutting body 330. Each cutting body 330 is attached to the blade body 310, particularly to a side surface or near the side surface 319, by means of an attachment portion 331. For example, the side surface 319 has a step on which the respective cutting body 332 is placed. For example, the attachment portion 331 is received in such a step. The attachment portion 331 of the cutting body 332 is supported on the rear side of the blade body 310.

[0225] In front of the blade body 310, a portion 332 of the cutting body 330 projects radially outward with respect to the axis of rotation DV. A lateral portion 333 of the cutting body 330 projects in front of the flat faces 311, 312. The portions 332, 333 are therefore optimally supported by the mounting portion 331, i.e. mechanically loaded during the working movement of the scoring tool 35, i.e. when the scoring tool cuts into the workpiece W. It is furthermore advantageous if the cutting body 330 has a radially inwardly projecting support projection 334, which is also supported by the blade body 310.

[0226] The scoring teeth 301 to 304, and therefore the cutting body 332, have, for example, a main cutting edge 350 extending parallel to the rotation axis DV or central axis of the scoring tool .

[0227] Extending transversely to the major cutting edge 350 are minor cutting edges 351. The minor cutting edges 351 are, for example, somewhat more than perpendicular to the major cutting edge 350 between which the minor cutting edges 351 are located, i.e., for example, in the range of an angle of 90-110°. For example, the major cutting edge 350 and each adjacent minor cutting edge 351 form an angle 354 of a minimum of 90° and a maximum of 110°. In an embodiment, the angular dimension WI of the angle 354 is, for example, about 7°.

[0228] The minor cutting edge 351 extends radially inward with respect to the axis of rotation DV, with its radially inner end region 355 having a radial distance RD with respect to the major cutting edge 350. The minor cutting edge 351, which extends at a slight or flat oblique angle with respect to the flat surfaces 311, 312, allows the creation of the scores RI at different depths, the lateral width of each score RI increasing as the scoring tool 35 penetrates or penetrates deeper into the workpiece surface WO, i.e. the maximum depth Rmax of the scores RI is essentially determined by the radial distance RD.

[0229] However, in this case, the creases RI could be made even deeper, i.e. if, for example, the cutting body 332 or, for example, the lateral portion 352 of the crease teeth 301-304 are also formed as cutting edges. The lateral portion 352 extends, for example, parallel to the central plane of the blade body 310 or perpendicular to the axis of rotation DV.

[0230] The score RI created by the score making tool 35 has a score bottom RB from which lateral sides RF extend to the workpiece surface WO. The lateral width of the bottom RB is determined by the lateral distance Q1 of the secondary cutting edge 351 in the region of the major cutting edge 350 or the length of the major cutting edge 350.

[0231] A step 353 is formed between the radially inner end of the side portion 352 and each of the flat surfaces 311 , 312 .

[0232] The saw tool 15 includes, for example, a saw blade 15A. A blade body 370 of the saw blade 15A has mutually opposing flat surfaces 371, 372 and has a sawtooth arrangement 376 including saw teeth 377 on a radial periphery 373 relative to a rotation axis DS about which the saw blade 15A rotates during sawing.

[0233] The number of the saw teeth 377 is greater than the number of the score teeth 301 to 304. Furthermore, the saw teeth 377 have a smaller angular distance with respect to the rotation axis DS about which the saw blade 15A is driven than the score teeth 301 to 304 with respect to the rotation axis DV.

[0234] The saw tool 15 is intended and configured to saw or cut into a workpiece from the underside WU of the workpiece W. The saw blade 15A has at its center ZS a machine receptacle 375 that is passed through by the axis of rotation DS or central axis of the saw blade 15A.

[0235] The radial periphery 373 has an outer diameter D73 that is, for example, three to four times larger than the outer diameter D13 of the periphery 313 of the scoring tool 35.

[0236] The inner diameter D75 of the machine receiving portion 375 of the saw blade 15A is larger than the inner diameter D15 of the machine receiving portion 315 of the scoring tool 35.

[0237] The maximum lateral width of the stitches RI in the region of the workpiece surface can be adjusted by the stitching tool 35 penetrating the workpiece surface WO to different depths. The maximum width of the stitches RI, i.e. the maximum distance between the stitch lateral sides RF, is determined by the lateral distance Q2 that the secondary cutting edges 351 have from each other within the maximum radial distance RD, i.e. the stitches RI can be at most as wide as the lateral distance Q2.

[0238] Such an adaptation is particularly advantageous since it makes it possible to associate the scoring tool 35 with different saw tools or saw blades and to use saw tools which in each case may have different cutting widths or cutting widths (relative to the respective length parallel to the rotation axis DS). Said adaptation is also advantageous in connection with the manufacturing or dimensional tolerances of the saw tools or saw blades and / or in case of different penetration depths of the saw blades into the workpiece or the like.

[0239] The creasing tool 35A can be adjusted with respect to its penetration depth into the workpiece W. The creasing tool tool receptacle 34 is a component of the creasing unit 31 with the creasing tool drive 23A. The creasing tool drive 32A comprises a creasing tool drive motor 32 which drives the creasing tool tool receptacle 34, in which the creasing tool 35 is arranged, either directly or via a transmission, not shown in the schematic diagram. For example, a mounting flange passes through the machine receptacle 315. Between the drive motor 32 and the tool receptacle 34, for example, a stepped transmission can be provided, so that the rotation axis of the tool receptacle 34 and the motor rotation axis of the drive motor 32 are not aligned, in particular the motor rotation axis of the drive motor 32 has a greater distance to the area of ​​the creasing tool 35 which is intended to penetrate into the workpiece W than the drive rotation axis DV.

[0240] The sawing tool receptacle 14, in which the machine receptacle 375 is arranged, can be driven by the sawing drive motor 12, for example directly or via a transmission, which is not shown in the drawings.

[0241] Like the saw unit 11, the scoring unit 31 is movably arranged in a guide device 17, for example in a guide body 18 of the guide device 17. A guide surface 19 of the guide body is intended for guiding along the workpiece surface WO. The sawing tool receptacle 14 and the scoring tool receptacle 34 are depth-adjustable with respect to the guide surface 19, so that they protrude more or less in front of the guide surface 19. The penetration depth of the scoring tool 35 and the saw tool 15 into the workpiece W is thereby adjustable.

[0242] In that case, the saw tool 15 is adjusted or can be adjusted so that its main cutting edge 380 cuts into the workpiece W from the underside WU of the workpiece. In addition to that, secondary cutting edges 381 extend alongside the main cutting edge 380 at an angle to this main cutting edge, which create, as it were, the lateral sides of the saw cut SAE with which the saw tool 15 can cut into the workpiece W. In each case, the saw cut SAE has a saw cut width SBB which is brought about on the one hand by the length of the main cutting edge 380 and, on the other hand, also by the secondary cutting edges 381 being inclined obliquely to the main cutting edge 380, as for example the secondary cutting edge 351 to the main cutting edge 350.

[0243] Since the saw teeth 377 cut into the workpiece W from the lower workpiece surface WU and therefore exit the workpiece at the upper workpiece surface WO, this entails the risk that the lateral sides of the saw incision SAE will be torn off in the region of the upper workpiece surface WO. In that case, the scoring tool 35 can be or is adjusted in terms of its penetration depth into the workpiece W or the extent to which the scoring tool 35 projects in front of the guide surface 19, so that the incision RI at the workpiece surface WO has a incision width RBB that is greater than the saw incision width SBB. The saw tool 15 or the saw blade 15A then exits the workpiece W between the lateral sides RF of the incision RI at the workpiece surface WO. That is to say, for example, if a covering or coating, a lining or the like is arranged on the workpiece surface WO, the covering or coating will not be affected or damaged by the saw teeth 377 exiting from the workpiece W.

[0244] The inclination of the lateral sides RF has the advantage that the grooves RI have a slight phase or bevel in the transition region to the workpiece surface WO.

[0245] The sawing drive motor 12 has an outer diameter D12, and the creasing device drive motor 32 has an outer diameter D32. With respect to the outer diameters of the creasing tool 35 or saw tool 15 driven respectively, the outer diameter D12 of the sawing drive motor 12 is smaller than the outer diameter D32 of the creasing device drive motor 32. Thus, for example, the ratio of the circumference D73 to the circumference D12, or the quotient of the circumference D73 to the circumference D12, is greater than the ratio of the circumference D13 to the circumference D32, or the quotient of the circumference D13 to the circumference D32, of the creasing device drive motor 32.

[0246] The adjusting means 12B and / or 32B can be used to adjust, for example, the rotational speeds of the sawing tool receptacle 14 and the creasing machine tool receptacle 34. It is possible for the creasing machine tool receptacle 34 to always operate at the same rotational speed, while the rotational speed of the sawing tool receptacle 14, e.g. the rotational speed of the sawing drive motor 12, is adjustable. The creasing machine tool receptacle 34 is configured to be driven or to be driven at a rotational speed that is at least twice as high as the sawing tool receptacle 14, preferably three times as high or four times as high.

[0247] Furthermore, the directions of rotation VS, VR of the tool receptacles 14, 34 are opposite. The tool receptacle 34 for the scoring tool 35 is driven, for example, with a direction of rotation VR which corresponds to a homocentric rotary saw. The direction of rotation VR therefore serves to feed or advance the scoring tool 35, so to speak, forward or along the workpiece W, the sawing machine 10.

[0248] The direction of rotation VS of the sawing tool holder 14 is such that the guide surface 19 exerts a force in the direction of the workpiece surface WO.

[0249] In the case of the cutting body 330, the minor cutting edge and the major cutting edge are straight, but it is alternatively possible for the major cutting edge and the minor cutting edge to be curved, e.g. extending concavely, convexly, or even combinations thereof, or for the minor cutting edge and / or the major cutting edge to have portions with different inclinations and / or curvatures.

[0250] For example, the cutting body 330B has a main cutting edge 350 that extends linearly, whereas the sub-cutting edge 351B between which the main cutting edge 350 is disposed has edge portions 360B, 361B. The edge portion 360B extends linearly, for example. The edge portion 360B is, for example, perpendicular to the main cutting edge 350. In contrast, the portion 361B is flat and inclined obliquely with respect to the portion 360B, and has an angle of, for example, 103 to 105 degrees with respect to the main cutting edge 350.

[0251] The cutting body 330C also has a major cutting edge 350, but has a minor cutting edge 351C with portions 360C and 361C. The portion 360C is concave with respect to a central plane MI extending between the flats 311 and 312 of the blade body 310, but has a smaller curvature than the portion 361C.

[0252] To clarify the convex shape, cutting body 330D is shown in which minor cutting edge 351D is concave with respect to central plane MI.

[0253] Instead of the straight main cutting edge 350, for example, a main cutting edge 350D extending in a convex shape in a direction away from the blade body 310 may be provided.

[0254] Furthermore, it is advantageous if the cutting bodies or scoring teeth of the scoring tool are, so to speak, symmetrical, i.e. form cutting edges on opposite sides, thus in the region of each flat surface 311, 312. However, it is also possible for the scoring teeth or cutting bodies to have cutting edges only on one flat surface 311 or 312. This is shown diagrammatically in the cutting body 330B. For example, instead of the secondary cutting edge 351B on the right side of the drawing, in the cutting body 330B, a side surface 359 that does not project in front of the flat surface 311 can be provided, and instead of the secondary cutting edge 351B on the left side of the drawing, the cutting body 330B trailing or preceding in the circumferential direction of the blade body 310 or the scoring tool 35 can be provided with a side surface 359 that does not project in front of the flat surface 312. The invention as originally claimed in the present application is set forth below. [1] A portable hand-held sawing machine comprising a saw unit (11) having a sawing tool holder (14) for a sawing tool (15), in particular a saw blade, and a sawing drive motor (12) for driving the sawing tool holder (14), and a guide device (17), the guide device comprising a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held sawing machine (10) on a workpiece (W) or on a guide rail (200) along a working direction (AR), the guide body (18) having a guide surface (19) extending along a longitudinal axis (L), the sawing tool (15) projecting in front of the guide surface (19) during sawing operation of the hand-held machine tool. ) to make saw cuts (SAE) in the workpiece (W) along the working direction (AR), the hand saw (10) comprising a creasing unit (31) having a creasing tool holder (34) for a creasing tool (35), in particular a creasing tool saw blade, arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) in front of the saw unit (11) with respect to the working direction (AR), and a creasing tool drive (32A) for driving the creasing tool holder (34), the creasing tool holder being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) in front of the saw unit (11) with respect to the working direction (AR), a cutting tool (35) arranged in the cutting tool holder (34) is movable between at least one active position (AP) in which the cutting tool (35) projects in front of the guide surface (19) and an inactive position (IP) in which the cutting tool (35) retracts behind the guide surface (19) in order to cut a cutting mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a cutting tool depth adjustment bearing (36) and in which the cutting tool (35) is movable with respect to the guide device (17) between at least one active position (AP) in which the cutting tool (35) projects in front of the guide surface (19) and an inactive position (IP) in which the cutting tool (35) retracts behind the guide surface (19); 1. A portable hand-held saw comprising: a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand-held machine tool, the creasing device handgrip body being arranged on an upper surface (19A) of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the longitudinal position of the creasing unit (31). [2] The hand saw described in [1], characterized in that the creasing device hand grip body (37) and / or the creasing unit (31) are arranged on the guide body (18) and constitute the foremost component of the hand saw in the working direction (AR), or the foremost component that can be gripped by an operator, or the foremost component that protrudes from the top surface of the guide device and can be gripped by an operator. [3] A handheld saw as described in [1] or [2], characterized in that the sawing tool storage section (14), in particular the entire saw unit (11), is supported in or against the guide device (17) so as to be movable between an upper depth adjustment position (OT) and at least one lower depth adjustment position (UT) using a sawing depth adjustment bearing (16), and the saw tool (15) protrudes in front of the guide surface (19) more in the lower depth adjustment position (UT) than when in the upper depth adjustment position (OT). [4] The hand saw described in [3], characterized in that the sawing depth adjustment bearing (16) is separate from the creasing device depth adjustment bearing (36) and / or is arranged in the guide body (18) at a longitudinal distance with respect to the working direction (AR). [5] The hand saw has at least one saw unit hand grip (26, 27), in particular arranged on the saw unit (11), by means of which the sawing tool holder (14), in particular the entire saw unit (11), can be operated between the upper depth adjustment position (OT) and the at least one lower depth adjustment position (UT), and the creasing device hand grip body (37) assigned to the creasing unit (31) is provided with the at least one saw unit hand grip (26, 27) or is operated by the at least one saw unit hand grip (26, 27). and wherein the saw unit hand grips (26, 27) can be used to manipulate the creasing device tool holder (34) between the inactive position (IP) and the at least one active position (AP), and the saw unit hand grips (26, 27) can be manipulated relative to the guide body (18) beyond a position assigned to the active position (AP) of the creasing device tool holder (34) to the at least one lower depth adjustment position (UT) for adjusting the sawing tool holder (14). [6] The handheld saw according to any one of [3] to [5], characterized in that the handheld saw has a driving device (70) for providing a driving connection between the sawing tool storage part (14) and the creasing device tool storage part (34), and when the sawing tool storage part (14) is moved between the depth adjustment positions (OT, UT), in particular between the upper depth adjustment position and the at least one lower depth adjustment position (UT), the driving device drives the creasing device tool storage part (34) between the inactive position (IP) and the at least one active position (AP), and the driving device (70) has an operating body (71) arranged on the saw unit (11) for operating an operated body (72) arranged on the creasing unit (31). [7] A handheld saw as described in any one of [1] to [6], characterized in that the creasing device handgrip body (37) is arranged in the guide device (17) in a fixed position relative to the depth adjustment motion path (BB) of the creasing device tool storage section (34), whereby a handgrip surface (37A) of the creasing device handgrip body is fixed relative to the depth adjustment motion path (BB) and can apply an operating force in the force direction of the motion path (BB). [8] A handheld saw described in any one of [1] to [7], characterized in that the groove cutting device hand grip body (37) is arranged on the guide device (17) so as not to be rotatable about a rotation axis extending transversely to the longitudinal axis (L) of the guide device (17). [9] A handheld saw as described in any one of [1] to [8], characterized in that the creasing device drive device (32A) is arranged between the upper surface (19A) of the guide device (17) and the hand grip surface (37A) of the creasing device hand grip body (37).

[10] A handheld saw as described in any one of [1] to [9], characterized in that the creasing device handgrip body (37) is arranged in or is formed by the creasing unit housing (33) of the creasing unit (31), the creasing unit housing (33) has an accommodation space, and at least one movable component of the creasing unit (31), in particular the creasing device tool accommodation section (34), is accommodated in the accommodation space so as to be movable relative to the creasing device handgrip body (37).

[11] The hand saw of

[10] , characterized in that the at least one movable component comprises the creasing device drive device (32A) and / or the creasing device depth adjustment means (95) for adjusting the distance between the creasing device tool storage portion (34) and the guide device (17) or the guide surface (19) and / or the penetration depth of the creasing tool (35) into the workpiece (W) in the at least one active position (AP).

[12] A hand saw as described in

[10] or

[11] , characterized in that the hand grip surface (37A) is formed by or is arranged on a wall of the creasing unit housing (33), in particular the upper wall (38).

[13] A handheld saw described in any one of

[10] to

[12] , characterized in that the hand grip surface (37A) of the creasing device hand grip body (37) is positioned in a portion away from the upper surface (19A) of the guide body (18) of the creasing unit housing (33).

[14] A handheld saw according to any one of claims [1] to

[13] , characterized in that an intermediate space (33A) or distance exists between the saw unit housing (13) and the creasing device handgrip body (37) and / or the creasing device housing (33) relative to the longitudinal axis (L) of the guide device (17) or the guide body (18), and in which at least one operating element of the creasing unit (31) provided for operation by an operator is arranged, in particular an operating element (93E, 193E) of a deactivation device (97, 197) of the creasing unit (31) and / or an operating element (87B) of a lateral adjustment device (87) and / or an operating element (99A, 199A) of a creasing device depth adjustment means (95, 195).

[15] A hand-held saw as described in any one of [1] to

[14] , characterized in that the creasing device hand grip body (37) comprises or is formed by a hand grip body (337) separate from the creasing unit housing (33) of the creasing unit (31).

[16] A handheld saw as described in

[15] , characterized in that an intermediate space (Z) exists between the creasing unit (31) and the creasing handgrip body (337) separate from the creasing unit housing (33) of the creasing unit (31), thereby enabling an operator to insert his hand into the intermediate space (Z) to grasp the creasing device handgrip body (337).

[17] A handheld saw as described in any one of [1] to

[16] , characterized in that the creasing device handgrip body (37, 337) is supported on the guide device (17) by means of a swivel bearing assembly, in particular a bevel-cutting bearing assembly (21A), so as to be rotatable about a pivot axis, in particular about a bevel-cutting axis (G) parallel to the working direction (AR) or the longitudinal axis (L) of the guide device (17), in order to change the relative position between the creasing device handgrip body (37, 337) and the guide surface (19).

[18] A hand saw according to any one of claims [1] to

[17] , characterized in that the creasing device handgrip body (37, 337) is fixedly arranged on a support (40) for the creasing unit (31) and / or the creasing device tool holder (34), in particular in a protective housing (29) for holding the saw tool (15) and / or the creasing tool (35), and the support (40) is rotatable relative to the guide device (17) about at least one pivot axis, in particular a bevel-cutting axis (G) parallel to the working direction (AR) or to the longitudinal axis (L) of the guide device (17), in order to change the relative position of the creasing device tool holder (34) and the guide surface (19), in particular by means of a bevel-cutting bearing assembly (21A).

[19] The hand saw according to

[18] , characterized in that the sawing tool storage (14), in particular the entire saw unit (11), is arranged on the support (40).

[20] The hand saw of

[18] or

[19] , characterized in that the guide body (18) has a hand grip portion (18F) on its upper surface (19A), which is at least substantially concealed by the creasing unit (31) when the support (40) is in a pivoted position toward the upper surface (19A), and which is exposed for operation by an operator of the hand saw (10) when the support (40) is in a pivoted position away from the upper surface (19A).

[21] A hand-held saw described in any one of [1] to

[20] , characterized in that the groove cutting device hand grip body (37) freely protrudes in front of the support body (40) in its free end region.

[22] The hand saw according to

[21] , characterized in that the hand grip surface (37A) extends to or is arranged in the free end region and / or a support portion (38D) is arranged in the free end region at a distance from the support (40), the support portion being supported by the upper surface (19A) of the guiding device (17) when the support (40) is in at least one pivot position relative to the at least one pivot axis.

[23] A hand-held saw as described in any one of [1] to

[22] , characterized in that the groove cutting device hand grip body (37) has an elongated shape and extends along a hand grip longitudinal axis (L38) that extends transversely, in particular at a right angle, to the longitudinal axis of the guide device (17).

[24] A handheld saw as described in any one of [1] to

[23] , characterized in that the guide body (18) has longitudinal sides (18A, 18B) extending parallel to its longitudinal axis (L), the creasing unit (31) is arranged between the longitudinal sides, the creasing device tool storage section (34) is arranged on one of the longitudinal sides (18A), and the creasing device hand grip body (37) extends in a direction away from the longitudinal side (18A) to the other longitudinal side (18B), in particular directly to the other longitudinal side (18B).

[25] A handheld saw as described in any one of [1] to

[24] , characterized in that the hand grip surface (37A) of the creasing device hand grip body (37) and / or the upper surface (19A) of the guide body (18), in particular a hand grip portion (18F) of the guide body (18) arranged below the creasing unit (31) or immediately adjacent to the creasing unit (31), has a grip recess (37B) and / or a flat surface (37C) and / or a grip protrusion (37D, 38C) that can be held by hand.

[26] A handheld saw as described in any one of [1] to

[25] , characterized in that at least one saw unit hand grip (26, 27) is arranged behind the groove cutting device hand grip body (37) in the working direction (AR) of the saw unit (11), and in particular two saw unit hand grips (26, 27) are arranged.

[27] The hand saw of

[26] , characterized in that the hand saw has a saw unit hand grip (26) arranged on the saw unit (11) behind the sawing tool storage section (14) relative to the working direction (AR).

[28] The hand saw described in

[27] , characterized in that the saw unit hand grip (26) arranged on the saw unit (11) behind the sawing tool housing in the working direction (AR) has an elongated shape with a longitudinal axis (L26) extending parallel to the longitudinal axis (L) of the guide body (18).

[29] A handheld saw as described in any one of

[26] to

[28] , characterized in that the handheld saw has a saw unit handgrip (27) arranged on the saw unit (11) in front of the sawing tool storage section (14) with respect to a longitudinal axis of the guide body (18) parallel to the working direction (AR) in at least one depth adjustment position of the sawing tool storage section (14).

[30] The hand saw described in

[29] , characterized in that the saw unit hand grip (27) has an elongated shape with a longitudinal axis (L27) extending transversely, in particular perpendicularly, to the longitudinal axis (L) of the guide body (18).

[31] The hand saw described in

[29] or

[30] , characterized in that in the guide device (17), the saw unit hand grip (27) and the groove cutting device hand grip body (37, 337) are rotatable about a bevel cutting axis (G) parallel to the working direction (AR) or the longitudinal axis (L) of the guide device (17) using a bevel cutting bearing assembly (21A).

[32] A handheld saw as described in any one of [1] to

[31] , characterized in that the creasing device handgrip body (37) does not form a component of a bearing body and / or an adjustment device or regulator of the handheld saw, and / or a component of a creasing device depth adjustment means (95) for adjusting the distance between the creasing device tool storage section (34) and the guide device (17) or the guide surface (19), and / or the penetration depth of the creasing tool (35) into the workpiece (W) in at least one active position (AP).

[33] A handheld saw described in any one of [1] to

[32] , characterized in that the groove cutting device hand grip body (37) is used only as a hand grip for an operator to hold, excluding any protective or covering function for components of the handheld saw (10).

Claims

1. A portable hand-held saw machine includes a saw unit (11) having a sawing tool holder (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool holder (14), and a guide device (17), the guide device having a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw machine (10) on a workpiece (W) or a guide rail (200) along a working direction (AR), and the sawing tool (15) protruding from the guide surface (19) during sawing operation of the hand-held saw machine. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, the sawing tool receptacle (14) is movably supported in or against the guide device (17) between an upper depth adjustment position (OT) and at least one lower depth adjustment position (UT) by means of a sawing depth adjustment bearing (16), the sawing tool (15) protruding from the guide surface (19) in the lower depth adjustment position (UT) more than in the upper depth adjustment position (OT); 10. A portable handheld saw, comprising: a sawing depth adjustment bearing (16) separate from the creasing device depth adjustment bearing (36).

2. 2. The hand saw according to claim 1, characterized in that the creasing device handgrip body (37) and / or the creasing unit (31) constitute the foremost component of the hand saw in the working direction (AR) arranged on the guide body (18), or the foremost component that can be gripped by an operator, or the foremost component that protrudes from the top surface of the guide device and can be gripped by an operator.

3. 2. A hand saw according to claim 1, characterized in that the sawing depth adjustment bearing (16) is arranged in the guide body (18) at a longitudinal distance from the sawing depth adjustment bearing (16) in relation to the working direction (AR).

4. The hand saw has at least one saw unit hand grip (26, 27) by means of which the sawing tool holder (14) can be operated between the upper depth adjustment position (OT) and the at least one lower depth adjustment position (UT), the creasing device hand grip body (37) assigned to the creasing unit (31) comprises or is made of the at least one saw unit hand grip (26, 27), and the saw unit hand grip (26, 27) is a hand grip for a sawing tool holder (14) that is connected to the creasing device hand grip body (37) of ...

4. A hand saw according to claim 1 or 3, characterized in that the creasing device tool receptacle (34) can be manipulated between the inactive position (IP) and the at least one active position (AP) by means of a hand grip (26, 27), and the saw unit hand grip (26, 27) can be manipulated relative to the guide body (18) beyond a position assigned to the active position (AP) of the creasing device tool receptacle (34) to the at least one lower depth adjustment position (UT) for adjusting the sawing tool receptacle (14).

5. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on the ... The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, the handheld saw comprises a driving device (70) for providing a driving connection between the sawing tool storage part (14) and the creasing device tool storage part (34), the driving device driving the creasing device tool storage part (34) between the inactive position (IP) and the at least one active position (AP) when the sawing tool storage part (14) is moved between the depth adjustment positions (OT, UT), and the driving device (70) comprises an operating body (71) arranged on the saw unit (11) for operating an operated body (72) arranged on the creasing unit (31).

6. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the creasing device handgrip body (37) is arranged on the guide device (17) in a fixed position relative to the depth adjustment motion path (BB) of the creasing device tool storage section (34), whereby a handgrip surface (37A) of the creasing device handgrip body is fixed relative to the depth adjustment motion path (BB) and can apply an operating force in the force direction of the depth adjustment motion path (BB).

7. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the creasing device handgrip body (37) is arranged on the guide device (17) so as not to be rotatable about a pivot axis extending transversely to the longitudinal axis (L) of the guide device (17).

8. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the creasing device drive device (32A) is disposed between the upper surface (19A) of the guide device (17) and the hand grip surface (37A) of the creasing device hand grip body (37).

9. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, the creasing device handgrip body (37) is arranged in or is formed by a creasing unit housing (33) of the creasing unit (31), the creasing unit housing (33) having an accommodation space, in which at least one movable component of the creasing unit (31) is accommodated so as to be movable relative to the creasing device handgrip body (37); 13. A portable hand-held saw, characterized in that the at least one movable component comprises a creasing device drive device (32A) for adjusting the distance between the creasing device tool storage portion (34) and the guide device (17) or the guide surface (19) in the at least one active position (AP).

10. 10. The hand saw of claim 9, wherein the at least one movable component comprises a creasing device depth adjustment means (95) for adjusting a penetration depth of the creasing tool (35) into the workpiece (W) in the at least one active position (AP).

11. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, the creasing device handgrip body (37) is arranged in or is formed by a creasing unit housing (33) of the creasing unit (31), the creasing unit housing (33) having an accommodation space, in which at least one movable component of the creasing unit (31) is accommodated so as to be movable relative to the creasing device handgrip body (37); 10. A portable handheld saw, characterized in that the hand grip surface (37A) is formed by or located on a wall of the creasing unit housing (33).

12. A handheld saw as described in any one of claims 9 to 11, characterized in that the hand grip surface (37A) of the creasing device hand grip body (37) is positioned in a portion away from the upper surface (19A) of the guide body (18) of the creasing unit housing (33).

13. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, 1. A portable hand-held saw, characterized in that an intermediate space (33A) or distance exists between the saw unit housing (13) and the creasing device handgrip body (37) and / or the creasing unit housing (33) relative to the longitudinal axis (L) of the guide device (17) or the guide body (18), and in which at least one operating element of the creasing unit (31) provided for operation by an operator, and / or an operating element (87B) of a lateral adjustment device (87) and / or an operating element (99A, 199A) of a creasing device depth adjustment means (95, 195) are arranged.

14. 14. A hand saw according to claim 1, characterized in that the creasing device handgrip body (37) comprises or consists of a handgrip body (337) separate from the creasing unit housing (33) of the creasing unit (31).

15. 15. The hand saw of claim 14, characterized in that an intermediate space (Z) exists between the creasing handgrip body (337) separate from the creasing unit housing (33) of the creasing unit (31) and the creasing unit (31), whereby an operator can insert his hand into the intermediate space (Z) to grip the creasing device handgrip body (337).

16. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (17) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the creasing device handgrip body (37, 337) is supported on the guide device (17) so as to be rotatable about a pivot axis, about a bevel cutting axis (G) parallel to the working direction (AR) or the longitudinal axis (L) of the guide device (17), by means of a pivot bearing assembly in order to change the relative position of the creasing device handgrip body (37, 337) and the guide surface (19).

17. 17. A hand saw according to claim 1, characterized in that the creasing device handgrip body (37, 337) is fixedly arranged on a support (40) for the creasing unit (31) and / or the creasing device tool receptacle (34), the support (40) being pivotable about at least one pivot axis in order to change the relative position of the creasing device tool receptacle (34) and the guide surface (19).

18. 18. Hand saw according to claim 17, characterized in that the sawing tool receptacle (14) is arranged on the support (40).

19. 19. A hand saw as claimed in claim 17 or 18, characterized in that the guide body (18) has a hand grip portion (18F) on its upper surface (19A) which is at least substantially concealed by the creasing unit (31) in a pivoted position in which the support (40) is pivoted towards the upper surface (19A) and which is exposed to be operated by an operator of the hand saw (10) in a pivoted position in which the support (40) is pivoted away from the upper surface (19A).

20. 20. Hand saw according to claim 17, characterized in that the creasing device handgrip body (37) projects freely in front of the support (40) in its free end region.

21. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on the ...), The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, 1. A portable hand-held saw, characterized in that the creasing device handgrip body (37) protrudes freely in front of the support (40) in its free end region, the handgrip surface (37A) extends up to or is arranged in the free end region, and / or a support part (38D) is arranged in the free end region at a distance from the support (40), the support part being supported by the upper surface (19A) of the guide device (17) when the support (40) is in at least one pivot position about at least one pivot axis.

22. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the creasing device handgrip body (37) has an elongated shape and extends along a handgrip longitudinal axis (L38) that extends transversely to the longitudinal axis of the guide device (17).

23. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on the ... The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the guide body (18) has longitudinal sides (18A, 18B) extending parallel to its longitudinal axis (L), the creasing unit (31) is arranged between the longitudinal sides, the creasing device tool storage section (34) is arranged on one of the longitudinal sides (18A), and the creasing device hand grip body (37) extends in a direction away from the longitudinal side (18A) to the other longitudinal side (18B).

24. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (17) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, A portable hand-held saw, characterized in that the hand grip surface (37A) of the creasing device hand grip body (37) and / or the hand grip portion (18F) of the guide body (18) arranged on the upper surface (19A) of the guide body (18) or immediately adjacent to the creasing unit (31) is provided with a grip recess (37B) and / or a flat surface (37C) and / or a grip protrusion (37D, 38C) that can be grasped by hand.

25. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on the ...), The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, The portable hand-held saw is characterized in that at least one saw unit handgrip (26, 27) is arranged on the saw unit (11) behind the creasing device handgrip body (37) in the working direction (AR), and the hand-held saw has a saw unit handgrip (26) arranged on the saw unit (11) behind the sawing tool storage section (14) in the working direction (AR).

26. 26. The hand saw according to claim 25, characterized in that the saw unit handgrip (26), arranged on the saw unit (11) behind the sawing tool receptacle in the working direction (AR), has an elongated shape with a longitudinal axis (L26) extending parallel to the longitudinal axis (L) of the guide body (18).

27. ​​A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (19) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, 1. A portable hand-held saw machine, characterized in that at least one saw unit handgrip (26, 27) is arranged on the saw unit (11) behind the creasing device handgrip body (37) relative to the working direction (AR), and the hand-held saw machine has a saw unit handgrip (27) arranged on the saw unit (11) in front of the sawing tool storage part (14) with respect to a longitudinal axis of the guide body (18) parallel to the working direction (AR) in at least one depth adjustment position of the sawing tool storage part (14).

28. 28. A hand saw according to claim 27, characterized in that the saw unit hand grip (27) has an elongated shape with a longitudinal axis (L27) extending transversely to the longitudinal axis (L) of the guide body (18).

29. A portable hand-held saw comprising a saw unit (11) having a sawing tool storage section (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool storage section (14), and a guide device (17), wherein the guide device comprises a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the hand-held saw (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and a guide member (17) for guide-guiding the hand-held saw (10) from the guide surface (19) during sawing operation of the hand-held saw. The hand-held saw (10) is capable of making saw cuts (SAE) in the workpiece (W) along the working direction (AR) using a saw unit (15), the hand-held saw (10) comprising a creasing unit (31) having a creasing device tool holder (34) for a creasing tool (35) arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L) and in front of the saw unit (11) with respect to the working direction (AR), and a creasing device drive device (32A) for driving the creasing device tool holder (34), the creasing device tool holder (34) being arranged on the guide device (17) in a longitudinal position relative to the longitudinal axis (L ...) and in front of the saw unit (11) with respect to the working direction (AR), a guide device (17) movable between at least one active position (AP) in which the creasing tool (35) arranged in the creasing tool tool receptacle (34) projects from the guide surface (19) and an inactive position (IP) in which the creasing tool (35) retracts above the guide surface (19) in order to make a creasing mark (RI) in the workpiece (W) along a depth adjustment movement path (BB) by means of a creasing tool depth adjustment bearing (36); a guide device for supporting the portable hand saw, the portable hand saw having a creasing device handgrip body (37) assigned to the creasing unit (31) and having a handgrip surface (37A) for an operator to guide the hand saw, the creasing device handgrip body being arranged on an upper surface (19A) side of the guide device (17) opposite to the guide surface (19) in the creasing device tool storage section (34) or the creasing unit (31) in the longitudinal position, At least one saw unit handgrip (26, 27) is arranged on the saw unit (11) behind the creasing device handgrip body (37) relative to the working direction (AR); A portable hand-held saw, characterized in that in the guide device (17), the saw unit hand grip (27) and the creasing device hand grip body (37, 337) are rotatable about a bevel-cutting axis (G) parallel to the working direction (AR) or the longitudinal axis (L) of the guide device (17) using a bevel-cutting bearing assembly (21A).

30. The hand saw according to any one of claims 1 to 29, characterized in that in the at least one active position (AP), the creasing device hand grip body (37) does not form a component of a bearing body and / or an adjustment or regulating device of the hand saw and / or a component of a creasing device depth adjustment means (95) for adjusting the distance between the creasing device tool storage section (34) and the guide device (17) or the guide surface (19) and / or the penetration depth of the creasing tool (35) into the workpiece (W).

31. The hand saw of any one of claims 1 to 30, characterized in that the creasing device hand grip body (37) is used only as a hand grip for an operator to hold, excluding any protective or covering function for components of the hand saw (10).

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