PORTABLE HAND SAWING MACHINE WITH AN EXTRACTION DEVICE

Description

[0001] The invention relates to a portable hand sawing machine which is a reciprocating saw and has a suction device.

[0002] EP 3 715 032 A1 discloses a reciprocating saw comprising a housing and a saw blade, as well as a base projecting from the housing and a cover surrounding the base for directing dust into an inlet channel.

[0003] For example, an extraction device known from DE 10 2018 102 855 A1 is attached to the machine housing so that particles generated during sawing into the workpiece, such as insulation material, can be extracted directly through the extraction connection. The particles pass through the guide body toward the extraction device.

[0004] The known suction device is preferably permanently attached to the machine housing, even if it is in principle removable therefrom.

[0005] Further extraction devices are explained in US 2013 / 0055577 A1, EP 0 347 631 A2, DE 10 2013 226 082 A1, EP 2 567 964 A1 and US 2011 / 0083330 A1.

[0006] It is therefore the object of the present invention to provide an improved hand sawing machine with a suction device.

[0007] To achieve this object, a hand-held sawing machine with a suction device according to the technical teaching of claim 1 is provided.

[0008] One advantage, for example, is that the guide contour is optimally adapted to the respective guide task. For example, different extraction devices can be provided for different guide tasks. If the guide contour becomes worn, it can be easily replaced, for example by replacing the entire extraction device. Furthermore, the assembly and disassembly of the extraction device is simplified. The extraction device can be attached to the front of the machine guide body or mounted in another way. The extraction device does not have to be installed, for example, in a gap between the guide body and the machine housing.

[0009] Furthermore, the installation of the extraction device is made easier by the fact that it is not, or at least not completely, mounted behind the machine guide surface, e.g. in a space between the machine housing and the machine guide body, but can be mounted entirely or at least partially frontally on the machine guide surface.

[0010] It is advantageous if an extraction channel or flow channel of the extraction device, which is connected on the one hand to the extraction connection and on the other hand to a location where the sawing tool is located when the extraction device is mounted on the hand saw, runs next to or on the machine guide surface. This can contribute to improved extraction.

[0011] An advantageous measure provides that the suction device has a flow channel which extends between a receiving area for the sawing tool and the suction connection, wherein the flow channel runs along the machine guide surface and / or on a side of the machine guide body facing away from the machine housing when the suction device is attached to the hand-held sawing machine.

[0012] The suction device can, for example, be designed in the form of a shoe.

[0013] The machine guide body is designed, for example, as a type of carriage for guiding along the workpiece or a workpiece surface of the workpiece.

[0014] The machine guide surface and / or the guide contour of the suction device is, for example, a sliding surface or comprises a sliding surface. The machine guide surface and / or the guide contour is preferably or comprises a flat surface or planar surface.

[0015] The machine guide surface and / or the suction device can, for example, have a recess, in particular a fork-shaped and / or V-shaped or U-shaped recess, in which the sawing tool is received and / or which is provided for receiving the sawing tool.

[0016] The machine guide surface extends, for example, transversely to the movement axis of the tool holder and / or transversely to the longitudinal axis of the sawing tool.

[0017] Advantageously, the suction device, in particular the at least one guide contour, at least partially covers the machine guide surface or only partially covers it. Thus, it is possible for the machine guide surface to be completely or partially covered by the suction device.

[0018] For example, it can be provided that a section of the machine guide surface protrudes in front of the extraction device, in particular laterally, and / or in particular in front of the at least one guide contour when the extraction device is mounted on the hand-held saw. This section of the machine guide surface is, for example, at the rear in the working direction and is not needed, for example, to guide the hand-held saw on the workpiece. The section of the machine guide surface protrudes in front of the extraction device, for example, on a side opposite the extraction connection.

[0019] It is further advantageously provided that the at least one guide contour protrudes in front of the machine guide body, in particular on a side facing the suction connection.

[0020] The suction device advantageously has a support section for support on the machine guide surface. The support section comprises, for example, support surfaces that are opposite the machine guide surface and that are intended and / or designed to support the machine guide surface. The support surfaces are, for example, flat surfaces or have flat surface sections.

[0021] The extraction connection is preferably located next to the support section. For example, the extraction connection can be located at the rear in the working direction if the extraction device is attached to the hand-held saw. This ensures that, for example, the operator's view of the work area or the point where the sawing tool cuts into the workpiece is not obstructed by the extraction connection or a suction hose attached to it.

[0022] Preferably, the suction device is designed such that the suction connection is oriented towards a bottom side of the machine housing of the hand-held sawing machine when the suction device is attached to the hand-held sawing machine.

[0023] Preferably, the suction device has a recess for the sawing tool, for example a U-shaped, V-shaped recess, a slot or the like.

[0024] The extraction connection and the recess for the sawing tool are preferably arranged at opposite end regions or longitudinal end regions of the extraction device.

[0025] The guide contour of the suction device advantageously extends over the area of the support section.

[0026] Advantageously, the guide contour extends into the area of the extraction connection and / or over the entire area of the extraction connection.

[0027] Preferably, the guide contour extends over an entire area of the suction device facing away from the machine housing of the hand-held sawing machine when the suction device is mounted on the hand-held sawing machine.

[0028] The support section is preferably configured to accommodate a portion of the machine guide surface such that another portion of the machine guide surface protrudes in front of the extraction device. A length of the support section relative to a working direction along which saw cuts can be made in a workpiece with the hand-held saw is preferably shorter than a length of the machine guide surface relative to this working direction.

[0029] The tool holder of the hand-held saw is preferably arranged between the machine housing and the guide body. The tool holder is preferably provided in a receiving space or gap between the guide body and the machine housing that is freely accessible for changing the sawing tool.

[0030] It is advantageous if the extraction device does not extend into the gap or receiving space between the machine guide body and the machine housing and / or does not engage in this gap or receiving space when the extraction device is mounted on the hand sawing machine.

[0031] A further appropriate measure is that the suction device, apart from a part that positively receives the machine guide body, does not engage in the space or receiving space between the machine guide body and the machine housing.

[0032] Advantageously, the fastening means of the suction device are provided and / or designed exclusively for attachment to the machine guide body. The fastening means therefore comprise only components intended for attachment to the machine guide body.

[0033] The suction device advantageously has no fastening means for attachment to the machine housing of the hand-held sawing machine and / or no part which, when the suction device is mounted on the hand-held sawing machine, engages in a space between the machine guide body and the machine housing.

[0034] Advantageously, the fastening means comprise positive-locking holding means, in particular at least one positive-locking projection and / or at least one positive-locking receptacle, for a positive-locking hold on the machine guide body. Particularly preferably, the fastening means comprise at least one positive-locking projection for a positive engagement in the machine guide body, in particular a plug-in receptacle of the machine guide body, and / or a positive-locking receptacle for a positive reception of the machine guide body, in particular a plug-in projection of the machine guide body.

[0035] The fastening means advantageously comprise locking means for locking the suction device to the machine guide body. The locking means can comprise, for example, locking receptacles, locking hooks, locking projections, or the like.

[0036] Alternatively or in addition to the locking means, magnetic holding means can also be provided, e.g. a magnet or the like, which is provided on the suction device and enables magnetic hold on the guide body of the hand sawing machine.

[0037] It is preferred if the positive-locking holding means and / or the latching means and / or the magnetic holding means are arranged on a support section of the suction device on which the machine guide surface of the machine guide body is supported or can be supported. The positive-locking holding means and / or the latching means and / or the magnetic holding means thus serve to hold directly on the machine guide surface. For example, a positive-locking counter-contour for the positive-locking holding means is provided and configured directly on the machine guide surface, for example as a recess, a projection or the like on the machine guide surface. For example, the machine guide surface itself or a latching counter-contour arranged on the machine guide surface can be provided for latching the latching means and / or for magnetically holding the magnetic holding means.These aforementioned locking or holding devices therefore do not engage at the edge of the machine guide surface, but rather at the core of the machine guide surface. For example, locking or plug-in receptacles are provided on the machine guide surface.

[0038] It is advantageous if the fastening means comprise at least one plug-in receptacle for inserting the machine guide body and / or at least one plug-in projection for insertion into a machine plug-in receptacle along a plug-in path and / or a plug-in axis. The aforementioned support section is preferably provided in the region of the at least one plug-in receptacle and / or extends alongside the plug-in receptacle. At least a portion of the machine guide surface can preferably be inserted into the plug-in receptacle.

[0039] Advantageously, the suction device has first and second plug-in receptacles arranged side by side, into which the machine guide body can be inserted sequentially, i.e., first into the first and then into the second plug-in receptacle, wherein the machine guide body can already at least partially engage in the second plug-in receptacle when it is inserted into the first plug-in receptacle. When the machine guide body is fully inserted into the first plug-in receptacle, it can be fully inserted into the second plug-in receptacle.

[0040] A combination of both measures is readily possible. For example, a section of the guide body can be plugged into the plug-in receptacle of the fastening means or the suction device, thus forming a guide body plug-in projection, so to speak. The suction device, in turn, can have at least one plug-in projection, which can be plugged into a machine plug-in receptacle, for example when the guide body is plugged into the suction device plug-in receptacle. The at least one machine plug-in receptacle is preferably arranged on the machine guide surface. It is particularly advantageous if, in addition to a recess for the sawing tool, a machine plug-in receptacle is provided.

[0041] It is also advantageous if the plug-in receptacle of the extraction device is designed to accommodate an edge section of the machine guide body, wherein the edge section comprises a portion of the machine guide surface and a front side of the machine guide body that is angled to the machine guide surface. For example, a section of the machine guide body facing away from the tool holder of the hand-held saw can be provided for insertion into the plug-in receptacle of the extraction device.

[0042] The plug-in receptacle of the suction device is preferably designed as a receptacle pocket. For example, the edge section of the machine guide body can be inserted into these receptacles.

[0043] The machine guide body preferably has at least one machine plug-in receptacle, for example in the form of an eyelet, a slot, or the like. As mentioned, this machine plug-in receptacle is preferably located on the machine guide surface, in particular next to a recess for the sawing tool.

[0044] A preferred measure provides that the fastening means comprise plug-in fixing means for securing the suction device transversely to the plug-in direction along which the machine guide body can be inserted into the plug-in receptacle. Thus, the machine guide body is secured in the plug-in receptacle by the plug-in fixing means to prevent it from being pulled out.

[0045] The plug-in fixing means comprise, for example, magnetic holding means, in particular at least one magnet, and / or locking means and / or locking hooks and / or the already mentioned form-fitting holding means or the like.

[0046] The plug-in fixing means can, for example, be formed by a further plug-in projection or a further plug-in receptacle of the suction device. It is advantageously possible, for example, for the machine guide body to be pluggable into the plug-in receptacle of the suction device along a first plug-in path, e.g. plug-in axis or plug-in direction, and for the at least one plug-in projection of the suction device to be pluggable into the machine plug-in receptacle in a second plug-in path or plug-in direction that is angled to the first plug-in path or plug-in axis, e.g. along an arcuate path. For example, the machine guide body can first be plugged into the plug-in receptacle and then the at least one plug-in projection of the suction device can be brought into engagement with the machine plug-in receptacle along the second plug-in direction.

[0047] Preferably, locking means for locking to the machine guide body are provided on the plug-in receptacle of the suction device and / or on the at least one plug-in projection of the suction device. It is possible for the at least one plug-in projection of the suction device to be configured as a locking hook. The locking means comprise, for example, locking hooks, locking contours, locking projections, or the like.

[0048] A plug-in direction for inserting the machine guide body into the plug-in receptacle of the extraction device preferably runs away from the at least one plug-in projection or transversely to the at least one plug-in projection of the extraction device. Thus, for example, a portion of the machine guide body is inserted into the plug-in receptacle of the extraction device when inserted into the plug-in receptacle, and the at least one plug-in projection of the extraction device can then be inserted into the machine plug-in receptacle of the machine guide body.

[0049] The machine guide body preferably has one or more receptacles for the fastening means of the extraction device on the machine guide surface. Such a receptacle is or includes, for example, a form-fitting receptacle and / or a plug-in receptacle and / or a latching receptacle. Preferably, one or more such receptacles are provided on each of the side legs of the machine guide body that extend alongside a recess for the sawing tool. For example, the machine guide surface has through-openings and / or cavities as receptacles for the fastening means and / or for the form-fitting fastening of the extraction device in the region of the machine guide surface.

[0050] The suction device preferably has a pair of plug-in projections and / or locking hooks. The plug-in projections or locking hooks preferably have the same or substantially the same distance from the plug-in receptacle of the suction device, if a plug-in receptacle is provided.

[0051] Advantageously, the suction device comprises a pair of plug-in projections, in particular locking hooks, for insertion into machine plug-in receptacles of the guide body, which have at least one locking contour, in particular a hook projection, for locking with the machine plug-in receptacles. The locking contours of the plug-in projections can be disengaged from locking counter-contours of the machine plug-in receptacles, for example, their edge regions, by moving the plug-in projections toward or away from each other. Thus, for example, an operator can grasp the plug-in projections with two fingers and move them toward each other to release a locking connection with the machine plug-in receptacles and thus disengage the plug-in projections from the machine plug-in receptacles.

[0052] When the locking means are locked or unlocked, the application of force to the suction device can lead to its deformation, which, for example, makes operation more difficult. The following measure can contribute to facilitating operation: Advantageously, the fastening means comprise a locking body, in particular a locking hook, for locking with the machine guide body and at least one supporting body, in particular a plug-in projection or a plug-in receptacle, for supporting and / or positively fixing the suction device to the machine guide body with respect to a release movement for releasing the locking body from a locking engagement with the machine guide body and / or a fixing movement of the locking body for locking the suction device to the machine guide body.The locking body has a locking contour, for example, a hook projection, for locking with the machine guide body, which can be disengaged from the machine guide body by a release movement. The support body counteracts, for example, the deformation of a base body of the suction device when the locking body is actuated.

[0053] An advantageous measure provides that the locking body and the at least one support body are arranged directly next to one another and / or both are designed for joint engagement in a machine plug-in receptacle of the machine guide body. If the locking body and the support body are arranged directly next to one another, for example a plug-in projection and a locking hook, these can engage in one and the same machine plug-in receptacle or in separate machine plug-in receptacles. The machine guide body is equipped accordingly, i.e. has a pair of plug-in receptacles arranged next to one another or a sufficiently large plug-in receptacle and / or an elongated hole for receiving the locking body and the support body of the fastening means of the extraction device.

[0054] It is particularly preferred if the locking body is arranged between two support bodies, for example, between two plug-in projections, at least one of which acts for positively locking and / or supporting the locking body during the release or fixing movement. It is possible for the other support body, for example, to form a displacement lock that blocks or hinders the removal of the machine guide body, in particular its edge section, from the plug-in receptacle of the suction device.

[0055] The guide contour can, for example, be designed as a guide surface or have a guide surface.

[0056] The suction device preferably has a recess for the sawing tool. The recess can, for example, be provided on a guide surface of the guide contour configured as a flat surface.

[0057] Preferably, however, a recess for the sawing tool is delimited by one or more side walls of the extraction device.

[0058] At this point it should be mentioned that the guide contour can, for example, be designed as a flat surface or can have a flat surface.

[0059] Preferably, however, the guide contour is relatively narrow, which can be achieved in particular by the following measures.

[0060] It is advantageous if the extraction device has at least one side wall, the narrow side or end face of which forms the guide contour or a component of the guide contour. Advantageously, the at least one side wall extends adjacent to the extraction connection and / or in an area between the extraction connection and a recess in the extraction device for the sawing tool.

[0061] The side wall can form part of a U-shaped or annular side wall or be designed as a U-shaped or annular side wall. The side wall can, for example, define a flow channel through which particles can flow away from the sawing tool toward the extraction connection.

[0062] A preferred measure provides for the guide contour to have a U-shaped configuration. A base leg of the guide contour preferably runs adjacent to the extraction connection. Side legs of the guide contour advantageously extend toward a recess for the sawing tool.

[0063] Advantageously, the extraction device has at least two side walls spaced apart from one another, wherein the spacing is designed and provided to accommodate the sawing tool or saw blade and / or forms part of a flow channel leading to the extraction connection. Narrow sides of the side walls are provided, for example, for support on the workpiece or for guidance along the workpiece.

[0064] The suction device, as a whole or in part, is preferably made of plastic, which is also preferably fiber-reinforced, for example, with glass fibers and / or carbon fibers. This allows the suction device to be manufactured inexpensively and can be easily replaced when it becomes worn. For example, the guide contour in this design of the suction device is also made of plastic.

[0065] For example, the extraction device consists at least partially or entirely of polycarbonate-acrylonitrile-butadiene-styrene copolymer (PC-ABS), polyoxymethylene (POM), polyamide, in particular polyamide with glass fiber reinforcement, for example PA6GFx, where x represents a percentage of glass fibers and is, for example, between 5 and 50, in particular approximately 5-20. For example, the plastic consists of 5% glass fibers if it is designated PA6GF5.

[0066] Advantageously, however, only one base body of the suction device can be made of plastic, particularly in connection with the measure explained below.

[0067] An advantageous concept provides that at least part of the guide contour is arranged on a guide element that is or can be releasably attached to a base body of the suction device. The guide element is, for example, plate-shaped. For example, two guide elements designed like skids can be provided.

[0068] It is furthermore advantageous if the guide contour as a whole or at least a part of the guide contour is arranged on a guide element which is or can be detachably fastened to a base body of the suction device.

[0069] The suction connection has, for example, a connection body, in particular a tubular body.

[0070] For example, locking means, in particular locking cams or the like, can be provided on the suction connection for locking or positively holding the suction hose. The suction connection preferably comprises a tubular connecting element or a tubular body.

[0071] This pipe body can form a connecting piece.

[0072] In a guide plane spanned by the guide contour or provided on the guide contour, the extraction device is supported in the area of the sawing tool on the workpiece to be machined when the extraction device is mounted on the hand-held saw. It is understood that other parts of the guide contour may be set back from this guide plane, for example, in particular parts of the guide contour in the area of the extraction connection. The guide contour can preferably have a skid-like shape.

[0073] It is preferred if the suction connection has a connecting body, in particular a connecting piece, which is designed for attaching a suction hose and is mounted rotatably or pivotably about one or more axes of rotation or pivot axes with respect to a base body provided and designed for connection to the machine guide body by means of at least one pivot bearing or pivot bearing arrangement. The connecting piece is designed, for example, as a piece of pipe. For example, a pivot axis of such a pivot bearing preferably runs parallel to a guide plane in which the guide contour lies or which is spanned by the guide contour.

[0074] It is advantageous if a longitudinal axis of the extraction connection, in particular of a connection body of the extraction connection, runs at an angle to a guide surface spanned by the guide contour or in which the guide contour is arranged. A longitudinal extension or longitudinal axis of the extraction connection, in particular of a connection body of the extraction connection, is oriented, for example, at an angle to a guide surface or surface in which the guide contour of the extraction device is located. The angle between the longitudinal axis or longitudinal extension of the extraction connection and the guide surface is, for example, in a range of approximately 15° to 80°. An inclination of approximately 20-40° is preferred.However, it is also possible for the guide surface and the longitudinal axis or longitudinal extension of the extraction connection to have an angle of 90° or almost 90°, for example if an area of the extraction device on which the extraction connection is arranged protrudes sufficiently far laterally in front of the machine guide body and / or the machine housing. If the connection body or extraction connection is stationary with respect to the guide contour, the aforementioned angle is fixed. If a pivot bearing is present, the angle can be adjustable, for example, in an angular range of 15° to 60°. Such pivoting can be achieved, for example, with a rotation axis or pivot axis that runs parallel to the guide surface.

[0075] The sawing tool advantageously has a sword-like or blade-like shape. Advantageously, the drive motor of the hand-held sawing machine or a longitudinal axis of the drive motor extends parallel to a longitudinal axis of the sawing tool.

[0076] The machine housing of the hand saw advantageously has a pistol-like shape.

[0077] It is advantageous that the extraction connection is arranged at the front in the working direction when the extraction device is attached to the hand sawing machine.

[0078] It should be noted that the hand-held sawing machine can preferably be used in a first working direction and a second working direction opposite to the first working direction. For example, the sawing tool can have a sawing contour, toothing, or the like on opposite sides so that saw cuts can be made in a workpiece in opposite working directions. However, it is also possible for the sawing tool to have a sawing contour on only one side, in particular the long side, and to be fastened to the tool holder of the hand-held sawing machine in a first rotational angle position in order to make saw cuts in the workpiece in a first working direction, and in a second rotational angle position, which is offset by 180° in terms of rotational angle, to make saw cuts in a second direction in the workpiece.

[0079] Exemplary embodiments of the invention are explained below with reference to the drawings. They show: Figure 1 is a perspective oblique view of a hand sawing machine with a suction device and a vacuum cleaner, Figure 2 is a perspective oblique view of a front part of the hand sawing machine according to Figure 1 with the suction device removed, Figure 3 the front part of the hand sawing machine according to Figure 1 and the suction device from the side, Figure 4 a perspective oblique view of the suction device, Figure 5 a section through a machine guide body of the hand sawing machine and the suction device approximately along a section line AA in Figure 4 , wherein the suction device is partially pivoted away from the machine guide body, for example during assembly or disassembly of the suction device on or from the machine guide body, Figure 6 the view according to Figure 5, wherein the suction device is connected to the machine guide body, Figure 7 shows a further suction device according to the preceding figures with magnetic hold in perspective from below, Figure 8 shows the suction device according to Figure 7 , but with removed guide elements, Figure 9 a plan view of the suction device according to Figures 7, 8 , Figure 10 a section through the suction device according to Figure 9 , approximately along a section line BB in Figure 9 , Figure 11 a further suction device, approximately in a plan view corresponding Figure 9 , Figure 12 a side view of the suction device according to Figure 11 , Figure 13 a section through the suction device according to Figure 11 , approximately along a section line DD, and Figure 14 a section through the suction device according to Figure 12 , approximately along a section line EE.

[0080] In the exemplary embodiments described below, identical components are provided with the same reference numerals. Essentially similar or functionally identical components have reference numerals that differ by 100.

[0081] A hand-held sawing machine 10 has a machine housing 17 in which a drive motor 11 is housed. The drive motor 11 is, for example, an electric motor that can be supplied with electrical energy via an electrical energy storage device 19, such as a battery pack. Alternatively, a power cable could also be used with the hand-held sawing machine 10 to connect it to an electrical supply network.

[0082] The drive motor 11 can be switched on and off using a switching element 16 and preferably also adjustable in terms of its speed. The drive motor 11 drives an output element 13 via a gear 12, on which a tool holder 14 for a sawing tool 15 is provided. The sawing tool 15 is, for example, a saw blade 15a, which can be inserted into the tool holder 14 and locked there.

[0083] The gear 12 is an oscillation gear and converts a rotary movement of the drive motor 11 into an oscillating linear movement, so that the tool holder 14 and thus also the sawing tool 15 makes an oscillating movement O along a movement axis SO.

[0084] The sawing tool 15 can be fastened in opposite positions in the tool holder 14, so that the hand sawing machine 10 can be operated once for a sawing operation in a working direction AR1 and in a position of the sawing tool 15 rotated by 180° with respect to the tool holder 14 in a working direction AR2.

[0085] On a part of the machine housing 17 facing away from the tool holder 14, a handle 18 is provided, which is designed in a pistol-like manner so that the machine housing 17, which itself has a longitudinal shape, can be grasped by an operator. The switch 16, for example a pressure switch, is located on the handle 18.

[0086] The tool holder 14 is arranged on a front wall 17A of the machine housing 17, wherein the front wall 17A and the handle 18 represent opposite end regions of the machine housing 17.

[0087] To guide the hand-held saw 10 on a workpiece, for example, a wall surface or the like, the hand-held saw 10 has a machine guide device 20 with a machine guide body 22. The machine guide device 20 is positioned in front of the tool holder 14 and has a machine guide surface 23 extending in front of the machine tool holder 14, which is intended for guiding on a workpiece surface. The machine guide surface 23 is configured, for example, as a flat surface.

[0088] The machine guide body 22 is mounted on the machine housing 17 by means of a bearing device 21V so as to be displaceable with respect to a longitudinal axis L. The bearing device 21V comprises support elements 21 which extend away from the machine guide body 22 in the direction of the machine housing 17 and are immovably received in displacement receptacles 21A arranged on the machine housing 17, in particular its interior. In the region of the displacement receptacles 21A, a fixing body 21C, for example a latch, locking body or the like, is provided for engagement in fixing receptacles 21B on one or both of the support elements 21 in order to fix the machine guide body 22 in different longitudinal positions with respect to the longitudinal axis L. Several fixing receptacles 21B can be provided at longitudinal intervals with respect to the longitudinal axis L.

[0089] The machine guide body 22 has side legs 27 that extend away from the guide surface 23 and / or are angled to the guide surface 23. The side legs 27 are connected to the support elements 21, for example, integrally or by means of bolts or other connecting elements 27A.

[0090] The machine guide body 22 has an edge section 24, from which side legs 25 extend, between which there is a recess 26 for the sawing tool 15. The edge section 24 could also be referred to as a base leg, from which side legs or guide legs 25 extend. Overall, the edge section 24 and the side legs 25 form a U-shaped configuration or a fork-shaped configuration, which delimits an intermediate space in the form of the recess 26 for the sawing tool 15. The machine guide surface 23 extends both in the area of the base leg or the edge section 24 and on the side legs 25. In principle, the machine guide surface 23 is therefore intended for guiding the hand-held sawing machine 10 along the workpiece surface.

[0091] During operation of the sawing tool 15, chips, particles, or the like are generated. These can be removed by a suction device 90, for example, a vacuum cleaner.

[0092] The suction device 90 has a suction housing 95, a suction turbine 92 and a dust collection chamber 93 which is fluidly connected to a suction hose 91.

[0093] Now, it's easy to imagine that it's difficult for the operator to bring the suction hose 91 or its inlet opening close to the work location of the sawing tool 15 and keep it there during sawing. To overcome this problem, a suction device 30 is provided, which can be easily connected to the hand-held sawing machine 10 when needed, but can also be just as easily removed when not in use.

[0094] The suction device 30 has a suction connection 31 for connecting the suction hose 91. The suction hose 91 has a connector 94 at its end facing away from the suction housing 95, which can be connected to the suction connection 31. The connector 94 can, for example, be plugged onto the suction connection 34 or plugged into the discharge connection.

[0095] The suction connection 31 has a connecting piece 32, for example a tubular body, which annularly encloses a passage 34. The passage 34 is fluidly connected to a suction region 35 of the suction device 30. When the suction device 30 is attached to the hand-held sawing machine 10, the suction region 35 is arranged in the region of the sawing tool 15 or the tool holder 14, so that chips or other similar particles generated during operation of the sawing tool 15 can be suctioned through the passage 34.

[0096] The connecting piece 94 can be inserted into the pipe body or connecting piece 32 or can be plugged onto it.

[0097] Form-locking contours 33, for example locking projections, cams or the like, are provided on the connecting piece 32 for holding the connecting piece 94 in a form-locking manner, so that the latter can be connected to the connecting piece 32 in a form-locking manner, for example by means of a plug-in rotational movement.

[0098] Advantageously, positive locking contours 33 projecting into the passage channel 34 are provided for positive engagement in the connecting piece 94 when the latter is inserted into the connecting piece 32.

[0099] Alternatively or additionally, form-fitting contours 33 can also be provided on an outer side of the connecting piece 32 facing away from the passage channel 34, which are intended to engage in a connecting piece 94 plugged onto the connecting piece 32.

[0100] The suction device 30 has a base body 40.

[0101] The suction device 30 and / or the base body 40 comprise a support section 41 for support on the machine guide body 22, as well as a suction section 42 on which the suction connection 31 is provided. When the suction device 30 is attached to the machine guide device 20, in particular the machine guide body 22, the suction section 42 protrudes at least partially laterally in front of the machine guide body 22.

[0102] The base body 40 has side walls 44, which are connected to one another at one longitudinal end region by a bottom wall 43 and at another longitudinal end region by a rear wall 45. The side walls 44 and the rear wall 45 are integral with one another. The rear wall 45 is, for example, arc-shaped and extends alongside the connecting piece 32 or its peripheral wall.

[0103] At the longitudinal end regions of the side walls 44 facing away from the rear wall 45, support legs 46 are arranged, which are provided for support and fastening to the machine guide body 22.

[0104] In the area of the support legs 46 or on the support legs 46, a recess 46A is provided through which the machine guide body 22 projects laterally in front of the suction device 30.

[0105] Support contours 43A are provided on the support legs 46, which are aligned with the bottom wall 43 and support the machine guide body 22, for example on the machine guide surface 23.

[0106] A recess 47 is provided on the bottom wall 43 and between the support legs 46, into which the sawing tool 15 engages when the suction device 30 is attached to the machine guide body 22.

[0107] The bottom wall 43 forms part of a base leg or base 36 of the suction device 30, from which side legs 37, namely in particular the support legs 46, protrude. The support legs 46 or side legs 37 are assigned to the side legs 27 of the machine guide body 22.

[0108] The side legs 37 and the base 36 essentially cover the machine guide surface 23 of the machine guide body 22.

[0109] A portion of the side legs 27 protrudes beyond the free end regions of the support legs 46 or side legs 37, but is not intended for contact with a workpiece. Rather, when the suction device 30 is mounted on the hand-held sawing machine 10, a guide contour 55 of the suction device 30 is provided for guiding along a workpiece W.

[0110] The guide contour 55 has longitudinal sections 56 provided by the narrow sides of the side walls 44. The longitudinal sections 56 extend along the side legs 37 of the machine guide body 22 and / or the suction device 30. Towards the free end regions of the side legs 27, the guide contour 55 further has support sections 57. The support sections 57 and a connecting section 58 of the guide contour 55 connecting the longitudinal sections 56 are provided on opposite sides of the longitudinal sections 56. The connecting section 58 is provided by a narrow side of the rear wall 45 of the base body 40.

[0111] Thus, the guide contour 55 defines a flow channel 52 that leads to the extraction area 35 at the extraction connection 31. The flow channel 52 thus runs past the machine guide surface 23 or next to the machine guide surface 23 or directly adjacent to the machine guide surface 23.

[0112] Based on Figure 3 It becomes clear that the hand-held sawing machine 10 can be guided directly with the machine guide surface 23 on the workpiece W when the suction device 30 is removed from the hand-held sawing machine 10. However, when the suction device 30 is attached to the hand-held sawing machine 10, the guide contour 55 serves to guide the workpiece W.

[0113] The recess 47 for the sawing tool 15 is circumferentially delimited by an inner wall 48. The inner wall 48 extends to an end wall 49, which is arranged at the free end regions of the side legs 37.

[0114] A top wall 55 extends between the side walls 44 and is diagonally opposite the bottom wall 43. Furthermore, a top wall 51 is connected to the top wall 50, on which the connecting piece 32 is arranged.

[0115] The cover walls 50, 51 are preferably at an angle to one another, so that the connecting piece 32 arranged on the cover wall 51 has an orientation at an angle to the guide contour 55, for example at an angle of approximately 45°.

[0116] Thus, a flow channel runs through the suction connection 31 diagonally rearward toward the machine housing 17 when the suction device 30 is attached to the hand-held sawing machine 10. It is preferred if the flow channel is oriented diagonally rearward relative to the machine housing 17 and / or toward an underside of the machine housing 17.

[0117] Fastening means 60 are provided for fastening the suction device 30 to the hand sawing machine 10, in particular its machine guide device 20.

[0118] The fastening means 60 comprise a plug-in receptacle 61 and a plug-in receptacle 62 arranged next to the plug-in receptacle 61. The machine guide body 22 can be inserted into the plug-in receptacle 61 along a plug-in path SB1, namely with its edge section 24.

[0119] The plug-in receptacle 61 is delimited by the side walls 44 and the top wall 50, in particular a section 50A of the top wall 50. Furthermore, a plug-in stop 54 is arranged in the plug-in receptacle 61, which is connected, for example, to the side walls 44 and / or the top wall 50. The section 50A of the top wall 50 is supported on the machine guide body 22, so that the suction device 30 is fixed with respect to a Figure 6to the right from below, which could be exerted, for example, by the suction hose 95.

[0120] The edge part 24 of the machine guide body 22 abuts with its end face 24A facing away from the recess 26 against the plug-in stop 54, which, for example, in Figure 5 and Figure 6 is shown as an example. Thus, the edge portion 24 of the machine guide body 22 forms a plug-in projection for insertion into the plug-in receptacle 61.

[0121] Once the machine guide body 22 is inserted into the plug-in receptacle 61, it is then fully inserted into the plug-in receptacle 62 located adjacent to the plug-in receptacle 61, namely along a plug-in path SB2. The plug-in path SB2 runs at an angle to the plug-in path SB1, for example, approximately at a right angle.

[0122] When the machine guide body 22 is inserted into the plug-in receptacles 61, 62, a portion 24B of the machine guide body 22 assigned to the sawing tool 15 projects in front of the suction device, in particular the support legs 46.

[0123] While the plug-in track SB1 can have a substantially straight or linear course, the plug-in track SB2, for example, is approximately curved. Thus, the machine guide body 22 is pivoted into the plug-in receptacle 62, so to speak, with the machine guide body 22 pivoting with its edge section 24 in the plug-in receptacle 61, which in this respect forms a pivot bearing receptacle.

[0124] When the machine guide body 22 is pivoted into the plug-in receptacle 62, it rests with its narrow longitudinal sides, which extend alongside the machine guide surface 23, on the side walls 44. Support ribs 53 are preferably provided there to support the machine guide body 22.

[0125] The plug-in receptacles 61 and 62 form form-locking receptacles 61A, 62A for the form-locking holding of the machine guide body 22 as a whole. Thus, for example, the two form-locking receptacles 61A, 62A are form-locking holding means 63.

[0126] Further form-locking holding means 63 of the fastening means 60 are formed by support bodies 64 and 65, which are provided for engagement in machine plug-in receptacles 28 on the machine guide body 22.

[0127] The machine plug-in receptacles 28 are located on the side legs 27 and are arranged directly on the machine guide surface 23. Therefore, recesses are provided on the machine guide surface 23 to accommodate the machine plug-in receptacles 28.

[0128] The support bodies 64, 65 form plug-in projections 64A, 65A for insertion into the machine plug-in receptacles 28. The machine plug-in receptacles 28 form form-locking receptacles and / or components of form-locking holding means.

[0129] A support body 64 and a support body 65 are provided on each side leg 37. Both support bodies 64 and 65 of a respective side leg 37 engage in one and the same machine plug-in receptacle 28.

[0130] Of course, it would be possible for a separate plug-in receptacle to be provided on the side legs 27 of the machine guide body 22 for each support body 64 or 65, even if this is not shown in the drawing.

[0131] Between the support bodies 64 and 65, locking projections 67 are provided for providing locking means 66. The locking projections 67 have locking contours 68 at their free end regions, which are designed to lock with the machine plug-in receptacles 28, which in this respect form locking receptacles. The locking projections 67, which are designed, for example, as locking hooks 67A, hook into the machine plug-in receptacles 28 and are supported on a side facing away from the machine guide surface 23 on the machine guide body 22, i.e., on the edge regions of the machine plug-in receptacles 28. The locking projections 67 can be grasped by an operator, for example with his fingers, so that he can move the two locking projections 67 towards each other, ie in the direction of the recess 47, which is indicated as a release movement LK in the drawing, in order to bring the locking projections 67 out of engagement with the plug-in receptacles or locking receptacles 28.

[0132] The support bodies 64 act in the sense of stabilization, ie they support the suction device 30 during the release actuation or release movement LK by preventing a movement of the side legs 37 towards each other, on which the locking projections 67 are arranged.

[0133] The support bodies 64 are provided at the longitudinal end regions of the side legs 37, for example in extension of the end wall 49 or as an extension of the end wall 49.

[0134] The inner wall 48 extends adjacent to the end wall 49, which defines the recess 47, with the end wall 49 and the inner wall 48 being angled to one another. Due to the angled walls 48 and 49, the support bodies 64, which are configured as spikes or support projections, are particularly rigid.

[0135] Thus, when the support bodies 64 engage the machine plug-in receptacles 28, they support the side legs 37 of the suction device 30 with respect to movements in the sense of a narrowing of the recess 47 or a widening of the recess 47. Thus, the support bodies 64 can act in a special way in the sense of support during the release movement LK.

[0136] The machine plug-in receptacles 28, into which the locking projections 67 also engage, are designed, for example, as elongated holes, so that the support bodies 64, 65 arranged next to one another in a row and the locking projections 67 arranged therebetween can engage in one and the same machine plug-in receptacle 28.

[0137] The support bodies 64 and the support bodies 65 are provided for support at opposite longitudinal end regions of the machine plug-in receptacles 28. Both support bodies 64 and 65 counteract opposing sliding movements of the machine guide body 22 along the plug-in path SB1.

[0138] The machine plug-in receptacles 28 and / or 29 are designed, for example, as through-openings. The machine plug-in receptacles 28 and 29 form, for example, locking receptacles and / or form-locking receptacles and / or plug-in receptacles, i.e., in general, receptacles for the fastening means 60, 160, 260.

[0139] The support bodies 65 counteract a release movement or a withdrawal of the machine guide body 22, in particular the edge section 24, from the plug-in receptacle 61 and form plug-in fixing means 74 with respect to the plug-in receptacle 61.

[0140] A projection 69 is arranged on the bottom of the plug-in receptacle 62 and / or on the bottom wall 43. The projection 69 can be provided, for example, for support on the machine guide surface 23 and / or as an aid for a tool, such as an injection molding tool, with which the suction device 30 can be manufactured. If a machine plug-in receptacle 29, explained below and arranged on a base leg of the machine guide surface 23, is not present, the projection 69 can be supported on the machine guide surface 23. An embodiment of the machine guide surface 23 or the machine guide body 22 without a machine plug-in receptacle 29 is preferred when using the suction device 30.

[0141] Further plug-in fixing means 74 can also be formed, for example, by the projection 69 if it forms a locking contour. The projection 69, the locking contour so to speak, can, for example, engage in a locking manner with the machine plug-in receptacle 29 forming a locking receptacle when the edge section 24 is inserted into the plug-in receptacle 61 along the plug-in path SB1.

[0142] Thus, the support bodies 64, 65 ensure a positive fit of the edge section 24 or the machine guide body 22 in the plug-in receptacle 61.

[0143] The locking means 66, in particular the locking projections 67, counteract a release of the machine guide body 22 from the plug-in receptacle 62 along the plug-in path SB2 and form plug-in fixing means 75 with respect to the plug-in receptacle 61.

[0144] A suction device 130 according to Figure 7-10 has similar or identical components as the suction device 30.

[0145] The suction device 130 comprises a support section 41 for supporting on the machine guide body 22 and a suction section 42 with a suction connection 131. The suction connection 131 comprises a connection piece 132 as a connection body 132A, on the outer circumference of which form-fitting contours 133, for example bayonet-like form-fitting contours 133, are arranged for connecting the connection piece 94 or another connection piece of a suction hose having bayonet contours.

[0146] A preferred concept provides that the connecting piece 132 is rotatable or pivotable about an axis S2 relative to a base body 140 of the suction device 30. For this purpose, a tubular body 136 is arranged on the base body 140, for example, on which the connecting piece 132 is pivotally mounted, for example by means of a pivot bearing 137. The pivot bearing 137 is formed, for example, by flange-like projections and receptacles of the connecting piece 132 and the tubular body 136 engaging with one another. The tubular body 136 and the connecting piece 132 are fluidly connected to one another.

[0147] The tubular body 136 has an inlet opening which is open to a suction area 35 between side legs 37 of the suction device 130 and is fluidly connected thereto.

[0148] The base body 140 thus has the two side legs 37 and a base 36 from which the side legs 37 protrude.

[0149] Like the base body 40, the base body 140 has plug-in receptacles 61 and 62 into which the machine guide body 22 can be inserted. The plug-in receptacles 61 and 62 and the magnetic holding means 70 form components of the fastening means 160 of the suction device 130.

[0150] From a bottom wall 143 of the base body 140, which represents the base of the support section 41, side walls 144 protrude at an angle in the manner of side legs, on which the narrow sides of the machine guide body 22 can be supported. The side walls 144 and the bottom wall 143 define the plug-in receptacle 62.

[0151] The bottom wall 143 as well as a cover wall 150 opposite it in the area of the suction connection 131 and sections of the side walls 144 delimit the plug-in receptacle 61.

[0152] Recesses 144A can be provided on the side walls 144, into which, for example, the connecting elements 27A or other contours projecting in front of the machine guide body 22 can engage.

[0153] As a result, the machine guide body 22 can be inserted into the plug-in receptacles 61 and 62 along the plug-in paths SB1 and SB2 already explained, with plug-in fixing means 174 and 175 fixing the machine guide body 22 in the plug-in receptacles 61 and 62.

[0154] The plug-in fixing means 174 comprise plug-in projections or support bodies 164 for engaging in the machine plug-in receptacles 28. The plug-in paths SB1 and SB2 run in mutually angular plug-in directions SR1 and SR2.

[0155] Advantageously, the plug-in fixing means 174 further comprise a plug-in projection 169, which can also be regarded as a locking projection, which is provided and configured for engagement in the plug-in receptacle or locking receptacle 29. The plug-in projection or locking projection 169 is located, so to speak, on the base 36 in a bottom region of the plug-in receptacle 61. For example, the plug-in projection 169 is configured as a locking contour 169A and thus as a locking means.

[0156] The plug-in fixing means 175 comprise magnetic holding means 70. The magnetic holding means 70 comprise a plurality of magnets 71 for a magnetic hold on the guide body 22. The magnets 71 ensure a magnetic hold of the suction device 130 on the machine guide body 22, for example, if the latter is made of ferromagnetic metal. Thus, against the force of the magnets 71, the suction device 30 must be removed from the guide body 22 so that the latter is removed from the plug-in receptacle 62 when the suction device 30 is no longer needed.

[0157] The magnets 71 are accommodated in receptacles 72 of the base body 140. The receptacles 72 are arranged, for example, on the side legs 37. A clamping contour 73, for example, a clamping projection, is advantageously arranged in each receptacle 72 for clamping the magnet 71 accommodated in the receptacle 72. The magnets 71 can be held in the receptacles 72 in a materially bonded manner, for example, by being glued.

[0158] The receptacles 72 are provided, for example, on the bottom wall 43, in particular on its side facing away from the plug-in receptacle 62. The receptacles 72 are open, for example, in the direction of a guide contour 155 of the suction device 130, but are closed by guide elements 156. Thus, the receptacles 72 and the magnets 71 arranged therein are covered both on their side facing away from the plug-in receptacle 62 and on their side facing the plug-in receptacle 62.

[0159] The guide elements 156 are made of plastic or metal, for example. Preferably, the guide elements 156 consist of a ferromagnetic multi-part structure, so that the magnets 71 can also magnetically hold the guide elements 156 to the base body 140.

[0160] On a side facing away from the plug-in receptacle 62, the base body 140 has receptacles 138 for the guide elements 156. The guide elements 156 are designed, for example, plate-like and have recesses into which retaining projections 139B on the receptacles 138 engage. The retaining projections 139B are designed, for example, in the manner of support projections, locking projections, or the like. Furthermore, the receptacles 138 are delimited by side legs 139A that protrude at an angle from the bottom wall 143.

[0161] Advantageously, the guide elements 156 are designed in the manner of guide runners or the like, with which the suction device 130 and thus also the hand-held sawing machine 10, to which the suction device 130 is attached, can be guided along the workpiece W.

[0162] The guide elements 156 extend along the side legs 37 and are arranged laterally next to the recess 47 into which the sawing tool 15 can engage.

[0163] By way of example, a further pivotability of the connection piece 132 or the suction connection 131 with respect to the base body 140 about a pivot axis S1 in Figure 8indicated, wherein the pivot axes S1 and S2 are at an angle to each other, for example, at right angles. A bearing concept for pivoting the connecting piece 132 about the pivot axis S1, optionally in addition to or alternatively to pivoting about the pivot axis S2, is described in connection with the suction device 230 and its connecting piece 232 according to Figures 11-13 explained.

[0164] At this point, it should be mentioned that the bearing concept of the connecting piece 232 forming a connecting body 232A and the connecting piece 132 can also be implemented individually or in combination in the suction device 130.

[0165] The connecting piece 232 is pivotally mounted about the pivot axis S1 with respect to a base body 240 of the suction device 230 by means of pivot bearings 280.

[0166] Bearing receptacles 282 are arranged on the base body 240, particularly in the region of a plug-in receptacle 61 of the base body 240, into which bearing pins or bearing projections 281 arranged on the connecting piece 232 engage. The bearing projections 281 protrude outwardly from the connecting piece 232 and engage in the bearing receptacles 282, which are configured, for example, as receiving chambers.

[0167] Furthermore, a pivot stop 283 is provided on the connecting piece 232, which limits the pivoting movement of the connecting piece in the direction of a position aligned with a guide contour 255 of the suction device 230. For example, the pivot stop 283 is formed by a flange projection that abuts an outer peripheral surface of the base body 240.

[0168] The base body 240 essentially corresponds to the base bodies 40, 140 and has, for example, the plug-in receptacle 61 and a further plug-in receptacle 62 delimited by the side legs 44, 144 which are functionally identical.

[0169] For example, a locking contour 269 is provided on the bottom of the plug-in receptacle 62 for engagement in the plug-in receptacle or locking receptacle 29 of the machine guide body 22.

[0170] Furthermore, locking means 266 are provided which are functionally similar to the locking means 66, but which differ from this by having locking projections 267 which can be conveniently operated by means of actuating sections 276.

[0171] The plug-in receptacles 61, 62 and the locking means 266 form fastening means 260 and / or positive locking holding means 263 of the suction device 230.

[0172] The locking projections 267 have locking contours 268, for example hook contours, on their free end areas intended for engagement in the locking receptacles or machine plug-in receptacles 28. The hook contours or locking contours 268 can be moved by a displacement movement R ( Figure 13 ) can be disengaged and engaged with the plug-in receptacles or locking receptacles 28.

[0173] The locking projections 267 have bearing sections 272, which are mounted in bearing receptacles 271 of sliding bearings 270 so as to be displaceable with respect to the movement R. The bearing receptacles 271 are located, for example, on or in the region of the bottom wall 243 of the base body 240.

[0174] The locking projections 267 are loaded by springs 273 in the direction of their locking position. Figure 13Only one spring is shown, although the locking projection 267 on the right in the drawing also has such a spring. The springs 273 are supported on support projections 274 of the bearing sections 272 or the locking projections 267, as well as on a support surface 275 of the bearing receptacle 271. The support surfaces 275 limit the release movement of the locking projections 267, and stops 278 of the bearing receptacles 271 located opposite them limit the movement of the locking projections 267 in the direction of their locking position. Stops 277 of the locking projections 267, which project, for example, in front of the actuating sections 276, abut the stops 278.

[0175] The actuating sections 276 have actuating surfaces arranged on the outer sides of the side legs 244 of the base body 240. Thus, an operator can conveniently actuate the actuating surfaces toward one another with a kind of clamping movement of his fingers in order to disengage the locking projections 267 from the locking receptacles or machine plug-in receptacles 28.

[0176] The guide contour 55 lies in the area of the sawing tool 15, for example in the area of the recess 47 when the suction device 30, 130, 230 is attached to the machine guide body 22, in a guide plane FF or spans a guide plane FF. The guide plane FF is the plane with which the suction device 30, 130, 230 is supported on the workpiece W in the area of the sawing tool 15. In principle, it is possible for a longitudinal axis LA of the connecting body 32A, 132A, 232A to run parallel to the guide plane FF. However, an angle WI between the longitudinal axis LA and the guide plane FF is preferred, for example a fixed angle in a range of 15° to 80°. Thus, the suction hose 91 can run obliquely away from the suction device 30, 130, 230 past the machine housing 17A. However, the angle WI can also be variable, for example, using a pivot bearing arrangement. Figure 12Such a pivotability or change in the position of the longitudinal axis LA with respect to the guide plane FF is shown, which is realized by means of the pivot bearing 280.

Claims

1. A handheld power saw (10), namely a saber saw, with a suction device (30; 130; 230), wherein the handheld power saw (10) has a machine housing (17) in which a drive motor (11) is arranged, and has a tool holder (14) which can be driven by the drive motor (11) in a linearly oscillating manner along an axis of movement (SO) for a sawing tool (15) having an elongate design and extending along a longitudinal axis for making a saw cut in a workpiece (W), wherein the handheld power saw (10) has a machine guide body (22) with a machine guide surface (23) facing away from the machine housing (17), in front of which the sawing tool (15) protrudes when mounted on the handheld power saw (10), for guiding the handheld power saw (10) on the workpiece (W), wherein the suction device (30; 130; 230) has fastening means (60; 160; 260) for detachable fastening on the handheld power saw (10) and has a suction connection (31) for connecting a suction hose (91) such that particles produced when the workpiece (W) is being machined can be suctioned away from the machine guide body (22) through the suction connection (31), characterized in that the suction device (30; 130; 230) has at least one guide contour (55; 155; 255) which, when the suction device (30; 130; 230) is mounted on the handheld power saw (10), protrudes in front of the machine guide surface (23) such that the handheld power saw (10) can be guided on the workpiece (W) by means of the at least one guide contour (55; 155; 255) instead of the machine guide surface (23).

2. The handheld power saw (10) of claim 1, characterized in that the suction device (30; 130; 230), in particular the at least one guide contour (55; 155; 255), covers at least partially or only partially the machine guide surface (23) and / or in that at least a portion of the machine guide surface (23) protrudes in front of the suction device (30; 130; 230), in particular the at least one guide contour (55; 155; 255), when the suction device (30; 130; 230) is mounted on the handheld power saw (10) and / or in that the at least one guide contour (55; 155; 255) protrudes in front of the machine guide body (22) and / or in that the suction device (30; 130; 230) has a support part (41) for support on the machine guide surface (23), wherein it is advantageously provided that the support part (41) is designed to receive part of the machine guide surface (23) in such a way that another part of the machine guide surface (23) protrudes in front of the suction device (30; 130; 230).

3. The handheld power saw (10) of claims 1 or 2, characterized in that the fastening means (60; 160; 260) are provided and designed exclusively for fastening to the machine guide body (22) and / or the suction device (30; 130; 230) has no fastening means (60; 160; 260) for fastening to the machine housing (17) of the handheld power saw (10). and / or have no part which engages in a space between the machine guide body (22) and the machine housing (17) when the suction device (30; 130; 230) is mounted on the handheld power saw (10) and / or in that the fastening means (60; 160; 260) have form-fitting holding means (63, 163, 263), in particular at least one form-fitting projection or at least one form-fitting receptacle, for a form-fitting hold on the machine guide body (22) and / or latching means (66; 266) for latching the suction device (30; 130; 230) on the machine guide body (22) and / or have magnetic holding means (70) for magnetically holding the suction device (30; 130; 230) on the machine guide body (22), wherein it is advantageously provided that the form-fitting holding means (63, 163, 263) and / or the latching means (66; 266) and / or the magnetic holding means (70) are arranged on a support part (41) of the suction device, on which the machine guide surface (23) of the machine guide body (22) is or can be supported.

4. The handheld power saw (10) of any one of the preceding claims, characterized in that the fastening means (60; 160; 260) have at least one plug-in receptacle (61) for insertion into the machine guide body (22) and / or have at least one plug-in projection (64A, 64B, 67) for insertion into a machine plug-in receptacle (28) along a plug-in path (SB1), in particular a plug-in axis.

5. The handheld power saw (10) of claim 4, characterized in that the at least one plug-in receptacle (61) is designed in the manner of a receiving pocket and / or is designed to receive an edge part (24) of the machine guide body (22), the edge part (24) having a part of the machine guide surface (23) and an end face (24A) of the machine guide surface (23) at an angle to the machine guide body (22), and / or in that on the plug-in receptacle (61) and / or on the at least one plug-in projection (64A, 65A, 67) latching means (66; 266), in particular latching hooks, are provided for latching with the machine guide body (22) and / or in that the at least one plug-in projection (64A, 65A, 67) is designed as a latching hook (67A) and / or in that the at least one plug-in receptacle (61) is provided for plugging in the machine guide body (22) in a first plug-in direction (SR1) and the fastening means (60; 160; 260) have plug-in fixing means (74, 75) for fixing the suction device transversely to the first insertion direction (SR1), wherein it is advantageously provided in that the at least one plug-in projection (64A, 65A, 67) forms the plug-in fixing means (74, 75) or a part thereof and is designed for plugging into the machine plug-in receptacle (28) in a second plug-in direction (SR2) or arcuate path which is angled, in particular approximately right-angled with respect to the first plug-in direction (SR1).

6. The handheld power saw (10) of any one of the preceding claims, characterized in that the fastening means (60; 160; 260) have a latching body, in particular a latching hook, for latching with the machine guide body (22) and at least one support body (64, 65) for form-fitting fixing and / or supporting the suction device (30; 130; 230) on the machine guide body (22) with respect to a release movement for releasing the latching body from a latching engagement with the machine guide body (22) and / or to a fixing movement of the latching body for latching the suction device (30; 130; 230) to the machine guide body (22), wherein it is advantageously provided that the latching body and the at least one support body (64, 65) are arranged directly adjacent to one another and / or both are designed for joint engagement in a machine plug-in receptacle (28) of the machine guide body (22).

7. The handheld power saw (10) of any one of the preceding claims, characterized in that the suction device (30; 130; 230) has at least one side wall (44), the narrow side or front side of which forms the guide contour (55; 155; 255) or a component of the guide contour (55; 155; 255).

8. The handheld power saw (10) of any one of the preceding claims, characterized in that the suction device (30; 130; 230) has at least two side walls (44) at a distance from one another, the distance being designed and provided to receive the sawing tool (15) and / or forms part of a flow channel (52) leading to the suction connection (31) and / or in that the guide contour (55; 155; 255) has a U-shape.

9. The handheld power saw (10) of any one of the preceding claims, characterized in that at least part of the guide contour (55; 155; 255) is arranged on a guide element (156) which is detachably fastened or fastenable to a base body (40; 140; 240) of the suction device (30; 130; 230) and / or in that the suction connection (31) has a connecting piece (32) which is designed for connecting a suction hose (91) and which is rotatably mounted with respect to a base body (40; 140; 240) of the suction device, which basic body is provided and designed for connection to the machine guide body (22).

10. The handheld power saw (10) of any one of the preceding claims, characterized in that the suction device (30; 130; 230) has a flow channel (52) which extends between a receiving region for the sawing tool (15) and the suction connection (31), the flow channel (52) extending on the machine guide surface (23) along and / or on a side of the machine guide body (22) facing away from the machine housing (17) when the suction device (30) is fastened to the handheld power saw (10).

11. The handheld power saw (10) of any one of the preceding claims, characterized in that the suction device (30; 130; 230) consists entirely or partially of, in particular, fiber-reinforced plastic and / or that the suction device (30; 130; 230) consists of a different material than does the machine guide body, wherein it is advantageously provided that the suction device (30; 130; 230) is made entirely or partially of polycarbonate-acrylonitrile-butadiene-styrene copolymer (PC-ABS) and / or polyoxymethylene (POM) and / or polyamide, in particular polyamide with a glass fiber reinforcement, consisting in particular of PA6GFx, wherein x represents a percentage of glass fibers and is in particular between 5 and 50.

12. The handheld power saw (10) of any one of the preceding claims, characterized in that the guide contour (55) spans a guide plane (FF) or lies in a guide plane (FF), in particular in a region provided for the sawing tool (15), and in that a longitudinal axis (LA) of the suction connection (31) extends at an angle (WI) with respect to the guide plane (FF), wherein it is advantageously provided that the angle (WI) is between 15° and 85°, in particular between 30° and 80°.

13. The handheld power saw (10) of any one of the preceding claims, characterized in that the suction connection (31) is pivotably mounted about at least one pivot axis (S1, S2) by means of at least one pivot bearing (280) with respect to a base body (40) having the guide contour (55).

14. The handheld power saw (10) of any one of the preceding claims, characterized in that at least one receptacle for the fastening means (60; 160; 260) of the suction device (30) is arranged on the machine guide surface (23) of the machine guide body (22), in particular at least one form-fitting receptacle for form-fittingly holding and / or receiving form-fitting holding means (63; 163; 263) of the suction device (30) and / or at least one machine plug-in receptacle (28) for inserting a plug-in body or support body (64, 65) of the suction device (30) and / or at least one latching receptacle for latching a latching projection (67) of the fastening means (60; 160; 260).

15. The handheld power saw (10) of any one of the preceding claims, characterized in that the machine guide body (22) is adjustably mounted on the machine housing (17) by means of a bearing device (21V), in particular a sliding bearing, such that the machine guide surface (23) can be adjusted between at least two mutually different relative positions with respect to the machine housing (17) and / or in that the machine housing (17) has a pistol-like shape and / or the machine guide surface (23) is shorter than a maximum longitudinal extension of the machine housing (17) and / or the drive motor (11) has a longitudinal axis of the sawing tool (15) passing through it and / or the drive motor (11) is coaxial to the sawing tool (15) and / or the tool holder (14).