Handheld device with blade

Abstract

The present invention relates to a handheld device (1) having a blade (17), the handheld device (1) comprising a handle portion having a longitudinal extension (L), a first end (60) and a second end (10), and a blade portion (6) equipped with the blade (17). The blade portion (6) assigned to the second step (10) is attached to the handle portion (5) and is thereby pivotable about a first pivot axis (x) in a pivot plane (E) running in the direction of the longitudinal extension (L), such that the blade is movable in a first pivot direction (r) from a pivoted storage position (G) in which the second end (10) defines the boundary of the handheld device (1) along the longitudinal extension (L) to a first operating position (A1) in which the blade protrudes beyond the second end along the longitudinal extension (L), and the blade portion (6) is pivoted in a second pivot direction (r"). The handle portion (5) can be pivoted back to a storage position (G), and at the second end (10) the handle portion (5) has an engagement structure (13) for rolling support on the workpiece (2). To advantageously configure such a handheld device, the blade (17) can be latched in a first operating position corresponding to a first pivot angle (α), and once unlatched, the engagement structure (13) is enabled to allow free pivoting between the blade portion (6) and the handle portion (5) in a pivot angle range (δ) exceeding the first pivot angle (α).

Description

[Technical Field]

[0001] The present invention relates to a handheld device with a blade, the handheld device having a handle portion with a longitudinal extension, a first end and a second end, and further having a blade portion with a blade, the blade portion assigned to the second end being attached to the handle portion so as to be pivotable about a first pivot axis in a pivot plane extending in the direction of the longitudinal extension, whereby the blade can be moved in a first pivot direction from a pivoted storage position in which the second end defines the boundary of the handheld device along the longitudinal extension to a first operating position in which the blade protrudes beyond the second end along the longitudinal extension, and the blade portion can return to the pivoted storage position in a second pivot direction, and the handle portion has an engagement structure at the second end for rolling support on an object to be cut.

[0002] The present invention also relates to a handheld device with a blade, the handheld device comprising a handle portion and a blade portion with a blade, the blade portion further having a longitudinal extension and fixed to the handle portion at a first end, a second free end of the blade portion located away from the first end in the direction of the longitudinal extension and having a leading edge, the blade further having a cutting edge, the leading edge and the cutting edge terminating in a slide shoe that protrudes beyond a part of the cutting edge extending along the longitudinal extension of the blade portion.

[0003] The present invention further relates to a handheld device with a blade, the handheld device with a blade comprising a handle portion and a blade portion with a blade, the blade portion further having a longitudinal extension and fixed to the handle portion at a first end, another free second end of the blade portion located away from the first end in the direction of the longitudinal extension and having a leading edge, the blade further having a cutting edge, and the blade portion having a blade protection portion covering a trailing edge of the blade opposite the cutting edge. [Background technology]

[0004] Various designs of handheld devices of this type are known, for example as so-called cable stripping knives for stripping the insulation from electrical cables. Furthermore, handheld devices of this type can also be used for other cutting tasks, see, for example, US Pat. No. 5,629,499. Furthermore, a handheld device in the form of a cable stripping knife is known, for example from US Pat. No. 5,649,999, which includes a pivotable blade guard that completely covers the blade in the area of ​​the rear edge, the leading edge, and the two broad faces connecting the rear edge and the cutting edge when the handheld device is not in use, and extends beyond the cutting edge. To use the handheld device, the blade guard must be pivoted to a position in which the cutting edge is exposed. In this exposed position, the blade guard is spaced apart from the rear edge, and the leading edge and part of the broad faces of the blade are also exposed. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] European Patent No. 0610841 [Patent Document 2] German patent no. 102004005646 Summary of the Invention [Problem to be solved by the invention]

[0006] In view of the above-mentioned prior art, the present invention is based on the object of advantageously enhancing handheld devices of this type with regard to preferred operability.

[0007] According to a first inventive concept, it is proposed that this object can be achieved by a handheld device in which the blade can be latched in a first operating position corresponding to a first pivot angle, and when the latch is released, free pivoting between the blade part and the handle part is possible in a pivot angle range exceeding the first pivot angle in order to utilize the engagement structure.

[0008] Starting from a pivoted storage position (which may also be a protective position when the blade is not in use), the blade section is pivotable in a first pivot direction to a position beyond the first operating position. The blade section is preferably not latched in this second operating position and is therefore pivotable about a pivot axis between the first operating position and a pivot end position, which is preferably limited by a stop. For example, this provides a free pivot angle range of approximately 60° to 120°, e.g., approximately 80° to 100°.

[0009] Furthermore, during a general cutting process using the engagement structure of the handle portion and the toggle lever-like action of the blade portion, particularly the blade, it is preferred that the free pivoting process of the blade portion does not reach the latched first operating position.

[0010] When the handheld device is used, particularly in the process of using the handheld device by rolling it over an object in a primary contact configuration, the engagement structure formed on the handle portion interacts with the object to be cut, particularly with the opposing surface of the object. The blade, once applied to a cutting object such as the sheath of an electric cable, can be moved by means of the engaging structure of the handle, particularly in the longitudinal direction of the cutting object, but also in the circumferential direction, for example when cutting objects with a particularly large diameter, as a result of alternating ratchet-like pivotal displacement of the blade relative to the handle in first and second pivotal directions and within a resulting pivot angle range. Such use of a handheld device offers the advantage of creating a toggle-lever-like interaction between the handle and blade, which is particularly, but not exclusively, advantageous in terms of ease of operation when retracting the blade into the workpiece, thereby achieving a power-saving transmission ratio during the cutting process. The cutting edge is retracted into the workpiece, for example, like a plow.

[0011] Additionally, the proposed handheld device is also capable of conventional cutting in a first operating position with the blade latched, allowing the handheld device to be used like a conventional knife with a rigid blade extending substantially longitudinally from the second end of the handle.

[0012] As a result, the handheld device can be used in at least two independent operating positions.

[0013] The above object can also be achieved by providing the cutting edge with a cutting projection that projects relative to the remainder of the cutting edge extending along the length of the blade portion, the cutting projection being formed at the end of the blade facing the handle portion.

[0014] For example, such cutting protrusions can be used to produce circumferential cuts in objects to be cut, such as cable sheaths, which is advantageous in terms of handling, and the exposed cutting protrusions also advantageously promote adhesion to and initial penetration of the object to be cut.

[0015] Furthermore, such cutting protrusions can be used to advantageously form, for example, a (first) longitudinal cut in a cable sheath at a position away from the free end of the cable. A sliding shoe is then passed through the slot-like cut in the cable sheath, and the cutting process can be continued, if necessary, with a cutting edge following the sliding shoe, and the cut can then be extended longitudinally along the cable as needed. If necessary, the longitudinal cuts formed during this process can be selectively performed by pulling or pushing the handheld device. The portion of the cable sheath away from the free end can be removed after forming two further circumferential cuts that separate the longitudinal cut on either side.

[0016] The cutting projection is located at a position much closer to the handle portion than the slide shoe in terms of the longitudinal extent of the blade portion.

[0017] If the blade section is designed to be pivotable, the cutting projection is formed on the edge or on the end of the blade section that is assigned to the pivot axis.

[0018] According to another inventive idea, the above object may also be achieved by a handheld device in which it is proposed that when the blade protection part is supported on the trailing edge of the blade, the cutting edge is exposed and the blade protection part not only covers the trailing edge but also a part of the leading edge and the transition from the leading edge to the trailing edge.

[0019] Therefore, the blade guard is advantageously designed for operation so that it can support the user's fingers during the cutting process, preferably by continuously contacting the trailing edge of the blade, thereby applying pressure to the blade. In this case, the blade guard is preferably designed so that the cutting edge is completely exposed in use, and the leading edge is exposed in use over a portion starting from the cutting edge. In order to prevent injuries in the event that fingers acting on the blade guard accidentally slip off, not only the trailing edge that supports the fingers via the blade guard but also the transition to the leading edge and the portion of the leading edge following the transition are covered by the blade guard. The relevant portion of the blade also remains protected in the use position.

[0020] It is proposed that the cutting edge is preferably completely exposed, whereas the leading edge may be covered, for example over 1 / 4 to 1 / 2, for example 1 / 3 or more of its length, starting from the trailing edge.

[0021] The features of the above-described independent claims are of importance both individually and in combination with one another, and features of the independent claims may also be combined with features of other independent claims or with features of several independent claims, or only with one or more individual features of the other independent claims.

[0022] Thus, according to possible embodiments of the present invention, a handheld device is provided in which the blade can be latched in a first operating position corresponding to a first pivot angle, and when released, free pivoting between the blade portion and the handle portion is possible in a pivot angle range above the first pivot angle in order to utilize the engagement structure, and the cutting edge is still exposed when the blade protection portion is supported on the rear edge of the blade, and when the blade protection portion covers not only the rear edge but also part of the leading edge and the transition from the leading edge to the rear edge, and / or the cutting edge has a cutting protrusion that protrudes relative to the remaining part of the cutting edge extending along the longitudinal extent of the blade portion, the cutting protrusion being formed on the end of the blade facing the handle portion.

[0023] Other features are often described below in preferred association with the solution basically described or with other features, as well as in the description of the drawings, but these features may be important either in association with the individual features mentioned above alone, or with each feature described below, or independently.

[0024] The engagement structure at the end of the handle can be realized by shaping a corresponding cross section of the handle, for example, the engagement structure can be a rib structure, for example in the form of a toothed projection curved in a plane extending parallel to the plane of rotation of the blade in a cross section through the handle, thereby providing a preferred rolling direction of the blade with a corresponding geometrical rolling axis perpendicular to the plane of rotation of the blade.

[0025] According to a preferred embodiment, the engagement structure can extend beyond the blade portion in the first operating position when viewed in the first pivot direction, and thus can be exposed adjacent to the blade portion in the first pivot direction in the region of the second end of the handle portion in the first operating position.

[0026] According to another embodiment, the blade section can be pivoted to a third operating position corresponding to a third pivot angle, in which the blade section can also be latched. This third operating position is preferably located between the pivoted storage position and the first operating position in the first pivot direction. However, it is also possible to locate the third operating position or even additional latched operating positions, for example, between the first operating position and the stop-limited pivot end position of the blade section in the first pivot direction.

[0027] According to a preferred embodiment, the third pivot angle corresponds to 1 / 10 to 9 / 10 of the first pivot angle. A possible first pivot angle for pivoting the blade unit from the pivoted storage position to the operating position can be, for example, 90° to 180° or more, or even 210° or more, for example, approximately 120° to 150°. Therefore, the third pivot angle of the blade unit from the pivoted storage position to the third operating position can be, for example, approximately 75° to 120°, for example, approximately 80° to 100°.

[0028] The pivoted storage position of the blade section can also preferably be latched. According to a preferred embodiment, the blade section can have a total of three latchable pivot positions: a pivoted storage position in which the blade section is not in use, a first operating position, and preferably a third operating position located between the pivoted storage position and the first operating position in the first pivot direction. Each latched position is preferably assumed automatically when the blade section reaches the respective pivot position, and the latch can preferably only be intentionally released by intentional intervention by the user.

[0029] The third operating position can be, for example, a locking position that prevents the blade from undesirably pivoting completely backward back to the swivel-out position if the blade is not properly latched in the first operating position. In such a case, the blade is moved to the third operating position and latched, and the latch must be intentionally released to further pivot the blade from the third operating position. This avoids the risk of injury to one or more fingers gripping the handle portion when the blade pivots backward uncontrollably toward the swivel-out position.

[0030] The latch is preferably formed between a handle end of the blade portion assigned to the handle portion and a latch portion provided on the handle portion. More preferably, the latch portion is exposed so that it can be operated in an ergonomically preferable manner by the fingers, for example the thumb, of the user's hand that grips the rest of the handheld device. In this context, it is more preferable that the latch portion is displaceable between a latched position, in which the operating position of the blade portion is fixed, and a pivot-release position of the blade portion.

[0031] The latch portion may be movable, for example, in a direction perpendicular to the plane of rotation, and the direction of displacement of the latch portion is therefore preferably parallel to the axis of rotation of the blade portion.

[0032] The latch part may be resiliently biased by a spring that appropriately acts against the latch part, in particular in the direction of the latched position. For example, a compression spring, such as a cylindrical compression spring, can be provided for this purpose, one end of which is supported on the handle part and the other end of which acts against the latch part. The intentional linear movement of the latch part from the latched position to the released position can be achieved by applying pressure, for example with a finger.

[0033] To prevent the latch unit from accidentally moving toward the blade unit's swing-release position, the object of the present invention is further developed by proposing that the latch unit can be fixed in the latched position by a first blocking unit. Thus, to release the blade unit from the latched position, the user must first intentionally move the first blocking unit. After that, the latch unit is no longer fixed in the latched position. Therefore, to release the blade unit from the latched position, (at least) two consecutive steps are required.

[0034] The first blocking part can be resiliently biased towards the blocking position, which can be achieved, for example, by providing a compression spring, such as a cylindrical compression spring, one end of which is supported on the handle part and the other end of which acts on the first blocking part.

[0035] In addition, in order to assume the latch position between the blade portion and the latch portion on the handle portion side, it is first necessary to displace the first blocking portion to this position, and it is also possible to block this latch position after it has been assumed by displacing the first blocking portion rearward. However, in this context, it is also possible to realize an embodiment in which, during the pivoting movement of the blade part, the latch part is automatically displaced in the direction of the latched position by the action of the spring as described above, and in the process, the first blocking part is pushed into the unblocking position against the force of the spring acting on the first blocking part, for example by means of a control bevel, and when the displacement end position of the latch part is reached in the latched position, the first blocking part automatically returns to the blocking position by the action of the spring.

[0036] According to a preferred embodiment, the first blocking part can be a slider that is movable, preferably linearly, between a release position and a blocking position in a plane parallel to the pivot plane. Such a slider is preferably arranged on the handle in an ergonomic manner, so that a user can operate the first blocking part and the latch part consecutively, for example, with the thumb of the hand that holds the rest of the handheld device.

[0037] According to another embodiment, the sliding part or the first blocking part can be fixed in a blocking position by a second blocking part, which may be provided for safety during transport or storage, for example.

[0038] The second blocking part may be a flap part that is movable about the second pivot axis. This flap part is preferably positioned ergonomically, for example, so that it can be reached by the fingers, particularly the thumb, of the user's hand that holds the rest of the handheld device. The pivot plane of the flap part may extend substantially perpendicular to the pivot plane of the blade part or substantially perpendicular to the displacement plane of the first blocking part. In another embodiment, the pivot plane of the flap part may extend substantially in line with the sliding direction of the first blocking part.

[0039] The handle end of the blade is preferably accommodated in the handle, and more preferably, the accommodation of the handle end in the handle is achieved in all possible pivot positions of the blade.

[0040] The blade may preferably have a cutting edge and a trailing edge. The trailing edge is preferably not designed to cut objects and is therefore preferably blunt, like the back of a general-purpose knife.

[0041] The cutting edge is preferably configured and designed to, for example, pull-cut the cable sheath along its longitudinal direction. The blade may further have a second free end, which is arranged at a distance from the end of the handle in the longitudinal direction and has a leading edge. In another embodiment, this leading edge is preferably realized as a leading cutting edge, with which the blade can move under pressure in the direction opposite to the displacement direction during pull-cutting. The blade is therefore designed to be usable not only for pull-cutting but also for push-cutting with respect to the longitudinal direction of the handle.

[0042] According to one embodiment, the cutting protrusion may extend in the longitudinal direction relative to the immediately adjacent portion of the cutting edge by at least 1.5 mm, for example up to 3 mm or even 5 mm. The immediately adjacent portion of the cutting edge in the direction of the first end of the cutting protrusion preferably extends substantially linearly, the length of which corresponds to approximately 0.5 to 0.8 times the total length of this cutting edge. The immediately adjacent portion may extend in a curved manner, for example to an optional slide shoe.

[0043] In the drawings where the cutting edges are shown as lines, the cutting prongs are formed in a pointed shape, e.g., gable roof shape, with the edges of the prongs that meet at the tip preferably being formed as cutting edges. This tip allows for good penetration into the object to be cut, e.g., cable sheath. The cutting edge on both sides further facilitates the cutting process. This design allows for cutting in both a pulling and pushing manner, both when viewed from the handle and in the circumferential direction.

[0044] In the case of a pivotable blade design, the cutting protrusion may project relative to the remaining cutting edge when viewed in the second pivot direction. The cutting protrusion may be formed as a sharp edge at the transition from the cutting edge to the outer terminal edge of the blade facing the handle. This transition may be rounded or may be formed as a point consisting of a sharp edge protrusion projecting relative to the remaining cutting edge.

[0045] The aforementioned cutting projection and the outer terminal edge of the blade facing the handle preferably extend at a certain distance from the handle in the longitudinal direction of the blade, which allows the corresponding transition areas of the cutting edge to be exposed or left bare, respectively.

[0046] Furthermore, a part of the cutting edge, including the cutting edge with the cutting protrusion, may be accommodated in the receptacle of the handle in the pivoted storage position. In this case, it is more preferable that the cutting edge with the cutting protrusion as well as the leading edge, which is substantially like the cutting edge, are completely accommodated in the receptacle. The receptacle can be substantially adapted to the shape of the blade and can therefore be realized in the form of a slot.

[0047] In another embodiment, the blade may have a sliding shoe, which is preferably arranged in the beak-shaped transition region between the cutting edge and the leading edge and is primarily used to prevent damage, particularly in the longitudinal direction, to the conductor surrounded by the cable sheath to be cut, particularly when stripping the cable sheath. In another preferred embodiment, this cutting edge region with the sliding shoe is completely housed in the receptacle of the handle in the pivoted storage position.

[0048] In another embodiment, the blade guard assigned to the rear edge of the blade can remain outside the receiver in the pivoted storage position, and the rear edge of the blade is covered by the blade guard over at least its length in the pivoted storage position.

[0049] The blade guard may be a plastic part that is fixed to the blade, for example an injection molded plastic part that snaps onto the blade.

[0050] In another non-latching operating position of the blade, the blade protection portion can further be used to apply pressure while causing, for example, a circumferential cut, and the object to be circumferentially cut can further be trapped, for example, between the blade portion, particularly the cutting edge, and the portion of the handle portion having the receiving portion.

[0051] According to one embodiment, for this purpose the blade protection has a longitudinal recess which serves to accommodate the user's supporting finger. Such a recess may be, for example, groove-like and may further have a contoured surface to enhance the finger slip resistance. This recess allows the user to apply pressure with their finger to the blade, in particular the cutting edge.

[0052] A portion of the rear edge may be exposed between the handle and the blade protection. According to a possible embodiment, this portion of the rear edge facing the handle and not covered by the blade protection may be formed, for example, in any operating position of the blade and in a pivoted position of the blade. For example, for the first operating position of the blade, the uncovered area of ​​the rear edge may extend over a predetermined free length outside the handle when viewed along the longitudinal direction of the handle in a top view of the handheld device, in which the pivot plane of the blade is shown linearly. This predetermined free length may correspond to approximately one-third to one-sixth, for example, approximately one-quarter to one-fifth, of the total length of the blade outside the handle.

[0053] According to another embodiment, the leading edge, preferably realized as a cutting edge, has an area exposed from the blade protection, the length of which can be less than 10 mm, for example from about 4 mm to about 6 mm. This free length of the area of ​​the leading edge usable for cutting can be adapted, for example, to the thickness of the cable sheath.

[0054] In the context of the present invention, the ranges or ranges of values ​​given above and below include all intermediate values, particularly in the unit of 1 / 10 of the respective dimension, but also optionally include dimensionless values. For example, an indication of 1 / 10 to 9 / 10 or 0.1 to 0.9 also includes disclosure of 0.2 to 0.9, 0.1 to 0.8, 0.2 to 0.8, etc., and a disclosure of 120° to 150° also includes disclosure of 120.1° to 150°, 120° to 149.9°, 120.1° to 149.9°, etc. Each disclosure may, on the one hand, serve to define the lower and / or upper limits of the cited range, but may alternatively or additionally serve to disclose one or more specific values ​​from each indicated range. [Brief explanation of the drawings]

[0055] The present invention will now be described with reference to the accompanying drawings, which show exemplary embodiments, in which elements described with reference to one of the exemplary embodiments and which are not replaced by different elements in another exemplary embodiment are therefore also described as potentially present elements in this other exemplary embodiment. [Figure 1] FIG. 1 shows a perspective view of a first embodiment of a handheld device with the blade portion in a first operating position. [Figure 2] FIG. 2 shows an exploded perspective view of the handheld device according to the first embodiment. [Figure 3] FIG. 3 shows a bottom view of the handheld device in the pivoted storage position of the blade portion along arrow III in FIG. [Figure 4] FIG. 4 shows a top view of the handheld device along arrow IV in FIG. 1, with respect to the position of the blade portion in FIG. [Figure 5] FIG. 5 shows a front view along the arrow V in FIG. [Figure 6] FIG. 6 shows a side view of the handheld device along arrow VI in FIG. [Figure 7] FIG. 7 shows a cross-section along the plane of section VII of FIG. 1 for a first operating position of the blade portion, the other positions of the blade portion being shown in dotted lines. [Figure 7a] FIG. 7a shows an enlarged view of region VIIa of FIG. [Figure 7b] FIG. 7b shows an individual view of the blade section in cross-sectional form according to FIG. [Figure 8] FIG. 8 shows an enlarged view of region VIII of FIG. [Figure 9] FIG. 9 is an enlarged view of FIG. 8, showing the blade portion in the swiveled storage position. [Figure 10] FIG. 10 shows the handheld device in the form of a side view according to FIG. 6, but in the first operating position according to FIG. [Figure 11] FIG. 11 shows a top view of the handheld device along arrow XI in FIG. [Figure 12] FIG. 12 shows a front view of the handheld device along arrow XII in FIG. [Figure 13] FIG. 13 shows an enlarged view of region XIII in FIG. [Figure 14] FIG. 14 shows in perspective view the area of ​​the handheld device and blade portion shown in FIG. [Figure 15] FIG. 15 illustrates a handheld device with a blade portion in a first operating position during a process of cutting an object using the handheld device. [Figure 16] FIG. 16 shows an enlarged view of region XVI of FIG. [Figure 17] FIG. 17 shows a side view of the handheld device with the blade portion in a first operating position when the cutting prongs are used to make a circumferential incision in an object. [Figure 18] FIG. 18 shows an enlarged view of region XVIII of FIG. [Figure 19] FIG. 19 is an explanatory diagram following FIG. 18, showing the state of the process of first cutting the object with the cutting protrusion of the blade portion. [Figure 20] FIG. 20 is a view corresponding to FIG. 18 and relates to a second embodiment of the cutting projection. [Figure 21] FIG. 21 is another view corresponding to FIG. 18 and relates to a third embodiment of the cutting projection. [Figure 22] FIG. 22 is a side view of the handheld device shown in FIG. 6, but with the blade portion in a third operating position. [Figure 23] FIG. 23 shows an enlarged cross-sectional view based on FIG. 8 of the blade portion of FIG. 22 in the operating position. [Figure 24] FIG. 24 shows another enlarged cross-sectional view corresponding to FIG. 8, but for an intermediate position between the third operating position and the pivoted retracted position of the blade section. [Figure 25] FIG. 25 shows another side view of the handheld device corresponding to FIG. 6, but with the blade portion in the second operating position. [Figure 26]FIG. 26 corresponds to FIG. 8 and shows an enlarged cross-sectional view of the blade portion of FIG. 25 in the operating position. [Figure 27] FIG. 27 shows the handheld device with the blade portion in the second operating position when the handheld device is used to make a longitudinal cut in an object. [Figure 28] FIG. 28 is a continuation of FIG. 27 showing the handle portion of the handheld device undergoing a rolling and pivoting motion relative to the blade portion. [Figure 29] FIG. 29 is a partial cross-sectional and partially exploded perspective view of the handheld device with respect to the latch between the handle portion and the blade portion. [Figure 30] FIG. 30 is a partial cross-sectional perspective view of the interaction area between the blade portion and the handle portion for the blocked latch position of the blade portion. [Figure 31] FIG. 31 shows a cross section along the plane of section XXXI of FIG. [Figure 32] FIG. 32 shows a cross section along the plane of section XXXII of FIG. [Figure 33] FIG. 33 is a view corresponding to FIG. 30 but in a position after the latch between the blade and handle portions has been released. [Figure 34] FIG. 34 shows a cross section along the plane of section XXXIV of FIG. [Figure 35] FIG. 35 shows a cross section along the plane of section XXXV of FIG. [Figure 36] FIG. 36 shows an enlarged view of area XXXVI of FIG. [Figure 37] FIG. 37 is a side view of the handheld device shown in FIG. 10, but for an alternative embodiment. [Figure 38] FIG. 38 shows a side view of a further embodiment of a handheld device. DETAILED DESCRIPTION OF THE INVENTION

[0056] 1 and 2, a handheld device 1 for cutting an object 2, in particular an electrical cable, will be described. The handheld device 1 is capable of cutting through an insulating sheath 4 that surrounds and protects a conductor 3, thereby removing the insulating sheath.

[0057] The handheld device 1 according to the embodiment shown in Figures 1 to 36 essentially consists of a handle portion 5 and a blade portion 6 pivotally mounted on the handle portion 5. A corresponding geometric pivot axis x extends transversely to the longitudinal extension L of the handle portion 5.

[0058] 37 and 38 show an embodiment in which the blade portion 6 is rigidly attached to the handle portion 5, i.e., non-pivotally attached.

[0059] The handle portion 5 preferably consists of two handle shells 8 and 9 which can be connected to each other by screws 7, and the contact surfaces of the two handle shells 8 and 9 can preferably coincide with the pivot plane E of the blade portion 6 (see, for example, Figure 4).

[0060] The handle portion 5 has a first end 60 free from the blade portion 6 and a second end 10 facing the blade portion 6. Inserts 11 are housed in the respective handle shells 8, 9 in the end sections of the handle portion 5 forming the ends 10 and are each fixed to the associated handle shell by a screw 12.

[0061] When viewed along the longitudinal extension L of the handle portion 5, each insert 11 projects beyond the contour of the handle portion 5, i.e. the handle shells 8 and 9, in the region of the end 10 and forms an engagement structure 13 in this projecting region.

[0062] The engagement structure 13 can be formed by a rib structure 14 extending along an imaginary curve in side view, as shown in Figure 6, for example, in which case rolling support of the handle portion 5 on the object 2 can be achieved by said rib structure at a predetermined operating position of the blade portion 6.

[0063] Forming the engagement structure 13 on the insert 11 advantageously allows the engagement structure 13 and the handle portion 5 to be constructed from different materials. For example, the handle shells 8 and 9 may be formed from a hard plastic material, while the insert 11 with the engagement structure 13 is formed from a stamped piece of steel.

[0064] The blade part 6 is preferably held pivotably between the inserts 11, a pivot pin 15 forming a geometrical pivot axis x passing through the blade part 6 in the region of the hole 16 and through the insert 11 in the region of the additional hole 52 to enable this pivotability of the blade part (see FIG. 2).

[0065] The blade portion 6 first essentially comprises a cutting edge 17 with a longitudinal extension M. A cutting edge 18 and a rear edge 19 located opposite the cutting edge extend substantially along this longitudinal extension M. The cutting edge 18 and the rear edge 19 are connected to each other by a leading edge 20 in the end region of the blade 17 facing away from the hole 16 of the handle portion 5 or the blade portion 6, respectively.

[0066] A bearing lug 21, which also includes the hole 16, can be integrally formed on the blade 17 substantially opposite the leading edge 20. The trailing edge 19 extends substantially to the outer contour of the bearing lug 21, while an outer edge 22, which extends substantially transverse to the longitudinal extension L of the end 10, is formed at the end of the cutting edge 18 facing away from the leading edge 20.

[0067] With regard to the cross section of the blade 17 in the region of the pivot plane E, for example according to the illustrations in Figures 7, 7a and 7b, the trailing edge 19 extends convexly when viewed from the cutting edge 18, whereby the trailing edge 19 is not designed for cutting and is therefore further preferably realized flat when viewed perpendicularly to the pivot plane E.

[0068] The cutting edge 18, which extends substantially linearly across the cross section, and the leading edge 20, which is realized in the form of a substantially linear additional cutting edge 18', are realized in the form of a blade with a sharp cutting edge, and at the transition from the leading edge 20 to the cutting edge 18, a hook-shaped or beak-shaped cutting extension 23 is formed, which is exposed to the extension of the cutting edge 18, and at the end of this cutting extension 23 a slide shoe 24 is preferably provided.

[0069] The slide shoe 24 is of substantially disc-shaped design and overlaps the opposing end sections of the sharp leading edge 20 and the cutting edge 18 .

[0070] With respect to the side view, for example according to FIG. 13 or FIG. 37, the maximum distance k between the linear portion of the cutting edge and the slide shoe 24 viewed perpendicularly to this linear portion of the cutting edge 18 can correspond to approximately 0.4 to 0.7 times the length m of the linear portion of the cutting edge.

[0071] Another preferred component of the blade portion 6 is a blade guard 25 attached to and supported by the trailing edge 19. This blade guard is preferably a cap-shaped hard plastic part that covers the trailing edge 19 at least adjacent the leading edge 20 or adjacent the transition 26 from the leading edge 20 to the trailing edge 19, and more preferably abuts both broad faces 27 of the blade, particularly leaving the cutting edge 18 exposed (see, for example, Figures 13 or 38).

[0072] Furthermore, the blade protection portion 25 simultaneously covers the aforementioned transition portion 26 and a portion of the leading edge 20 located adjacent thereto.

[0073] If the leading edge 20 has a length a in the cross section of the blade 17 in the plane of rotation E, as shown in Figure 7a or 7b, a portion of the blade protection part 25 can cover the leading edge 20, starting from the transition 26 from the leading edge 20 to the trailing edge 19, up to the leading edge 20, over a length b corresponding to about one-third to about half of the length a of the leading edge. This results in a length g of the leading edge 20 or the corresponding cutting edge 18' exposed in the sliding direction between the blade protection part 25 and the sliding shoe 24 for performing the cutting process. This length g is preferably adapted to the thickness of the cable sheath and is therefore in the range of, for example, 3 mm to 5 mm, and can be increased to 6 mm if necessary.

[0074] For the first operating position of the blade portion 6 (described in more detail below and shown for example in FIG. 7 ), or for the handheld device 1 with the rigid blade portion 6 shown in FIG. 38 , the length c of the rear edge 19 covered by the blade protection portion 25 starting from the transition portion 26 corresponds to more than half, for example about 2 / 3 to 4 / 5, of the length d of the rear edge 19 that protrudes freely beyond the engagement structure 13. Thus, at least in the case of a pivotable blade portion 6, in the first operating position, the portion 28 of the rear edge 19 that is not covered by the blade protection portion 25 is formed between the blade protection portion 25 and the optionally provided engagement structure 13.

[0075] At the end 29 of the blade part 6 facing the handle part 5, a cutting projection 30 having a sharp cutting edge is formed, in particular in the transition region from the cutting edge 18 to the rear edge 19. For example, according to Figures 17 to 19 and 36, this cutting projection can be realized in the form of a pointed projection 31 that projects beyond the cutting edge 18 and has a gable-shaped cutting edge 18".

[0076] In side view, for example according to FIG. 36, the cutting edges 18″ of the cutting projections 30 may include an angle ε of about 80-100°, for example about 90°, with respect to one another. The corresponding angle bisector p extends, according to possible embodiments, substantially perpendicular to the linearly extending portion of the cutting edge 18 or to the extension of this cutting edge portion (see FIG. 36).

[0077] The dimension h by which the tip 61 of the cutting projection 30 protrudes relative to the linearly extending portion of the cutting edge 18 is preferably greater than 1.5 mm, for example, 2 mm or more, and can be, for example, 5 mm.

[0078] According to Figure 21, the cutting protrusion 30 may be formed as a result of a sharp transition, such as a right angle, from the cutting edge 18 to the outer edge 22. According to an alternative embodiment shown in Figure 20, the transition forming the cutting protrusion 30 may be achieved by a rounded cutting edge.

[0079] Regardless of the respective design, exposed cutting projections 30 are provided, which advantageously allow for example circumferential cuts to be made in the insulating sheath 4. In this case, when the blade part 6 is arranged in the first operating position, the object to be cut is supported on a contact surface 53 of the handle part 5, which extends at a distance from the cutting projections 30 of the blade 17. Figure 19 shows, by way of example, that when the entire handheld device 1 is rotated in the circumferential direction of the object 2, the blade 17 first penetrates into the object 2, in this case the insulating sheath 4, as a result of the above-mentioned exposed cutting projections 30, and then, for example, a circumferential cut can be made by further moving the handheld device 1 in the circumferential direction u relative to the object 2.

[0080] The blade portion 6 is pivotable relative to the handle portion 5, thereby providing different pivot positions for the blade portion 6, preferably three operating positions and one pivoted storage position.

[0081] For example, in the pivoted storage position G shown in Figures 3 to 6 and 9, the blade portion 6 is accommodated in a slot-shaped receiving portion 32 in the handle portion 5. The receiving portion 32 is essentially located below the handle portion 5 during normal handling of the handheld device 1.

[0082] In this pivoted storage position G, the cutting edge 18, the cutting lug 30 with its outer edge 22, and preferably also the slide shoe 24, are completely housed within the receiving part 32. The blade guard 25 remains outside the receiving part 32 and at least partially covers this receiving part 32 in the pivoted storage position G.

[0083] Furthermore, a latch mechanism is provided between the blade portion 6 and the handle portion 5 not only in the swiveled storage position G but also in other operating positions. For this purpose, the handle portion 5 is provided with a latch portion 33 in the form of a latch pin that is movable along the geometric axis z perpendicular to the swiveling plane E, and this latch portion 33 is elastically biased by a spring 34 in the direction of the latched position.

[0084] The latch portion 33 extends through a hole 35 in the insert 11 as shown and interacts with a circumferential edge 54 of the blade-side bearing lug 21 .

[0085] At the end of the latch part 33, a pin-shaped operating handle 36 is provided which passes through the handle part 5 in the area of ​​the outward opening hole 55, and this operating handle allows the latch part 33 to move axially along the axis z against the restoring force of the spring 34.

[0086] A different latch recess 37 is formed on the circumference of the blade bearing lug 21 at an edge 54 extending substantially concentrically with the pivot axis x, and a matching latch section 38 of the latch part 33 engages in said latch recess 37 in a locking manner in the latched position (see, for example, Figure 32).

[0087] The latch sections 38 are moved from this interaction position with the latch recesses 37 of the bearing lugs 21 by axial displacement of the latch portions 33, achieved by applying pressure to the operating handle 36, after which the constricted release portions 39, which have a smaller diameter than the latch sections 38, move into the interaction area with the respective latch recesses 37 (see, for example, Figure 35).

[0088] In the illustrated exemplary embodiment, a total of three latch positions are provided. This first concerns the above-mentioned pivoted storage position G, which is obtained as a result of pivoting the blade part 6 from the operating position in the second pivot direction r'. Furthermore, two operating positions, namely the first and third operating positions A1 and A3, are preferably latched, in particular the first operating position A1 being reachable by pivoting the blade part 6 from the pivoted storage position G in the first pivot direction r. In this case, the first pivot angle α between the pivoted storage position G and the first operating position A1 can be between more than 90° and approximately 180°, for example between approximately 130° and approximately 150° (see FIG. 7a).

[0089] For example, to pivot the blade part 6 from the pivoted storage position G to the first operating position A1, the latch part 33 must first be moved axially along its geometric axis z. The released blade part 6 can then be pivoted. In this case, no axial pressure needs to be applied to the latch part 33 during the pivoting movement, because the latch part 33 is prevented from moving rearward by the circumferential edge 54 of the bearing lug 21 engaging with the constricted release part 39. The latch part 33 is returned to the latched position by the spring 34 only when it reaches the next latch position in the pivoting direction, i.e., the next latch recess 37 of the bearing lug 21.

[0090] The latched third operating position A3 may be located between the swiveled storage position G and the first operating position A1, and the corresponding third pivot angle γ between the swiveled storage position G and the third operating position A3 may be about 80-100°, for example about 90°, and thus about 5 / 10 to 8 / 10, for example about 6 / 10 to 7 / 10 of the first pivot angle α (see FIG. 7a).

[0091] In another embodiment, this third operating position A3 may provide a locking position that prevents the blade part 6 from pivoting into the receiver 32 and thus into the pivoted storage position G in the event of improper latching in the first operating position A1 during an unintended pivoting backward of the blade part 6 in the second pivot direction r'. This prevents one or more fingers gripping the handle part 5 in the area of ​​the receiver 32 from being accidentally pinched or even injured. The blade part 6 is latched into the third operating position A3 upon unintended pivoting backward. The example shown in Figures 22 and 23 shows that in this third operating position A3, a sufficiently large distance is ensured, in particular between the cutting edge 18 of the blade part 6 and the underside 56 of the handle part 5 following the pivoting direction.

[0092] Therefore, in the illustrated exemplary embodiment, a total of three pivot positions at which the blade portion 6 is latched are provided: a pivot storage position G, a first operating position A1, and a third operating position A3.

[0093] In the above-mentioned first operating position A1, the blade portion 6, in particular the cutting edge 17, is typically arranged substantially in line with the handle portion 5, in particular arranged to form a longitudinal incision, for example for cutting and opening the insulating sheath 4 along its longitudinal direction (see Figures 15 and 16). For example, Figure 7a shows that the engagement structure 13 preferably extends beyond the cutting edge 17 or blade portion 6 in the first pivot direction r and is therefore exposed facing the rear edge 19.

[0094] In the first operating position A1, the handheld device 1 can be moved to pull along the object 2 in the direction s, and in the illustrated embodiment the insulating sheath 4 is cut by the cutting edge 18, in particular in the region of the hook-shaped cutting extension 23. A sliding shoe 24 extending inside the insulating sheath 4 prevents damage to the conductor 3 surrounded by the insulating sheath 4.

[0095] Alternatively, in this first operating position A1, the handheld device 1 can also push the blade portion 6 to move in the opposite direction s', in which case the cutting of the object 2 is performed by the leading edge 20 (see Figure 16).

[0096] To facilitate the cutting process, the user can press the blade portion 6 with his finger 41 via the blade protection portion 25, which may be provided with a suitable recess 40 for this purpose.

[0097] However, the blade portion 6 can of course also be used in a non-latched pivoted position, such as in a pivoted position of the blade portion 6 between the third operating position A3 and the pivoted storage position G, as shown in Figure 24. In this position, for example, a circumferential cut can be made on a small-diameter object 2, with the object 2 (e.g., the insulating sheath 4 of an electrical cable) contacting the underside 56 of the handle portion 5 having the opening in the receptacle 32, and pressure being applied to the blade 17, and in particular the cutting edge 18, via the blade guard 25, as described above with respect to the first operating position A1.

[0098] The blade part 6 can be pivoted beyond the first latchable operating position A1 to a preferably non-latching second operating position A2 (see, for example, FIG. 26). This allows the blade part 6 to be freely pivotable between the first operating position A1 and a stop limit following the first pivot direction r. With respect to the maximum possible pivoting movement, the blade part 6 can assume a second pivot angle β, starting from the pivoted storage position G, which is preferably greater than 180°, for example 300°, for example between about 200° and 270° (see FIG. 7a).

[0099] 26 further shows that in the second operating position A2, the blade 6 can be pivoted over a pivot angle range δ of, for example, approximately 70° to 90°. In this case, the latch section 38 of the latch part 33 interacts with an edge 57 of the blade-side bearing lug 21. The edge 57 extends substantially on an arc of a circle extending concentrically with the pivot axis x, the radius of which substantially coincides with the radius of the area of ​​the latch recess 37.

[0100] In this second operating position A2, stops are formed in both the pivoting directions r and r', on the one hand in the transition area 58 between the edge 57 and the rear edge 19, and on the other hand in the shoulder 59 formed between the edge 57 and the latch recess 37 of the bearing lug 21 that defines the first operating position A1.

[0101] The second operating position is preferably used for longitudinal cuts requiring greater force. In this case, the handheld device 1 is used generally like a ratchet, with the engagement structure 13 of the handle portion 5 supported on the opposing surface of the object 2, e.g., the insulating sheath 4 (see FIGS. 27 and 28). As described for the first operating position A1, the blade portion 6 is pulled in the longitudinal direction of the object 2, resulting in a pivotal displacement of the handle portion 5 in the pivot direction t, causing the engagement structure 13 to roll on the object 2 and providing a toggle-lever-like pulling action on the blade portion 6 (see FIG. 28). The next ratchet-like pulling of the blade portion 6 through the object 2 is initiated by pivoting the handle portion 5 in the pivot direction t' back to the starting position shown in FIG. 27 on the object 2, particularly without further support of the engagement structure 13.

[0102] The latched position of the pin-shaped latch part 33 can be blocked by a first blocking part 42. This blocking part is preferably a sliding part that is linearly displaceable from a blocking position, as shown by way of example in Figure 30, to a release position in a direction substantially parallel to the orientation of the pivot plane E. The first blocking part 42 is arranged in the region of the end part 10 of the handle part 5 adjacent to the latch part 33 and has an operating handle 46 that passes through a slot-like opening 47 in the handle part 5.

[0103] The first blocking portion 42 is resiliently biased by a spring 51 to a blocking position in which the locking bar extension 49 engages the underside of the circumferential radial shoulder 50 of the latch portion 33, thereby preventing the entire latch portion 33 from displacing into an unlatched position (see Figures 30 to 32).

[0104] To release the blocking position, the first blocking portion 42 must be displaced in the direction of arrow e, which causes the locking bar extension 49 to release the radial shoulder 50 and therefore the latch portion 33 for axial displacement (see Figures 33-35).

[0105] 34 shows the blocking portion 42 in the unlatched position. When the latch portion 33 is axially displaced to the unlatched position and the first blocking portion 42 is subsequently released, the first blocking portion is supported circumferentially on the radial shoulder 50 of the latch portion 33 via the locking bar extension 49.

[0106] During the course of pivotal movement about the pivot axis x, when the blade portion 6 reaches the next latch position in the pivot direction where the next latch recess 37 engages with the latch section 38 of the latch portion 33, the latch portion 33 is automatically returned to the latched position by the action of the spring 34, and during this displacement, the lock bar extension 49 of the first blocking portion 42 loses support against the radial shoulder 50. The blocking portion 42 is pushed back by the spring 51 to a position where it follows the latch portion 33 and blocks it.

[0107] In another embodiment, the first blocking part 42 can be fixed by a second blocking part 43. The second blocking part 43 may be a pivot part attached to a bearing support part 45 of the handle part 5 and held by the handle part 5 so as to be pivotable about an axis 44 forming a geometric pivot axis y. In the blocking position, the second blocking part 43 has a locking extension part 48, as shown in FIG. 30 , which, in the blocking position, engages with a region of an opening 47 that remains exposed behind the operating handle 46 of the first blocking part 42 in the blocking position of the first blocking part 42, thereby preventing the first blocking part 42 from sliding in the direction of arrow e. The space for the sliding displacement of the first blocking part 42 is only released when the second blocking part 43 pivots from this fixed position in the direction of arrow f, thereby removing the locking extension part 48 from the opening 47 (see further details in FIG. 30 ).

[0108] The above description serves to clarify all inventions contained in this application, each of which independently enhances the prior art by at least the following combination of features, two, more, or all of which combinations of features may be combined with each other:

[0109] A handheld device characterized in that the blade (17) can be latched in a first operating position (A1) corresponding to a first pivot angle (α), and when unlatched, allows free pivoting between the blade portion (6) and the handle portion (5) in a pivot angle range (δ) exceeding the first pivot angle (α) to utilize the engagement structure (13).

[0110] A handheld device characterized in that the engagement structure (13) is a rib structure (14).

[0111] A handheld device characterized in that the engagement structure (13) extends beyond the blade (17) in the first operating position (A1) in the first pivot direction (r).

[0112] A handheld device, characterized in that the blade portion (6) is pivotable to a third operating position (A3) corresponding to a third pivot angle (γ), and the blade portion (6) is latchable in the third operating position (A3).

[0113] A handheld device, characterized in that the third pivot angle γ is equivalent to one-tenth to one-ninth of the first pivot angle α.

[0114] A handheld device characterized in that it can be latched into a swiveled storage position G.

[0115] A handheld device characterized in that a latch can be formed between a handle end (29) of a blade portion (6) assigned to the handle portion (5) and a latch portion (33) provided on the handle portion (5).

[0116] A handheld device characterized in that the latch portion 33 is movable perpendicularly to the rotation plane E.

[0117] A handheld device characterized in that the latching portion (33) can be blocked in a latched position by a first blocking portion (42).

[0118] A handheld device characterized in that the first blocking portion (42) is a sliding portion movable in a plane parallel to the pivot plane (E) between a release position and a blocking position.

[0119] A handheld device characterized in that the sliding part can be fixed in a blocking position by a second blocking part (43).

[0120] A handheld device characterized in that the second block portion (43) is a flap portion that is movable around a second pivot axis (y).

[0121] A handheld device characterized in that the handle end (29) of the blade portion (6) is housed within the handle portion (5).

[0122] A handheld device characterized in that the blade (17) has a cutting edge (18) and a trailing edge (19).

[0123] A handheld device characterized in that the blade (17) has a second free end located away from the handle end (29) in the direction of the longitudinal extension (M) and having a leading edge (20).

[0124] A handheld device characterized in that the cutting edge (18) has a cutting protrusion (30) that protrudes relative to the remainder of the cutting edge (18) extending along the longitudinal extension (M) of the blade portion (6), and the cutting protrusion (30) is formed on the end (29) of the blade (17) facing the handle portion (5).

[0125] A handheld device characterized in that the cutting projection 30 projects relative to the immediately adjacent portion of the cutting edge 18 along the longitudinal extension M by a dimension h of 1.5 mm or more.

[0126] A handheld device characterized in that, in a perspective where the cutting edge 18 is shown by a line, the cutting protrusion 30 is realized in a gable-roof-like pointed shape, and the edges of the protrusions that meet at the tip 61 are realized in the shape of the cutting edge 18".

[0127] A handheld device characterized in that the cutting protrusion (30) projects in a second pivotal direction (r') relative to the remainder of the cutting edge (18).

[0128] A handheld device characterized in that a part of a blade (17) having a cutting edge (18) with a cutting projection (30) is housed in a receiving part (32) of a handle part (5) in a pivoted storage position (G).

[0129] A handheld device characterized in that the blade (17) has a sliding shoe (24).

[0130] A handheld device characterized in that the blade (17) is provided with a blade guard (25) on the trailing edge (19).

[0131] A handheld device characterized in that in the pivoted storage position G, the blade protection part 25 remains outside the receiving part 32.

[0132] A handheld device characterized in that when the blade protection portion 25 is supported on the trailing edge 19 of the blade 17, the cutting edge 18 is exposed, and the blade protection portion 25 not only covers a portion of the trailing edge 19, but also a portion of the leading edge 20 and a transition portion 26 from the leading edge 20 to the trailing edge 19.

[0133] A handheld device characterized in that the blade protection part (25) has a recess (40) in the direction of the longitudinal extension (M) for receiving the index finger (41) of the user.

[0134] A handheld device characterized in that a part of the rear edge (19) is exposed between the handle portion (5) and the blade protection portion (25).

[0135] A handheld device characterized in that the leading edge 20 is realized in the form of a cutting edge 18'.

[0136] A handheld device characterized in that the length g of the area of ​​the leading edge 20 exposed beyond the blade protection portion 25 is less than 10 mm.

[0137] All disclosed features are essential to the invention (both by themselves and in combination with one another). The disclosure of the application must fully include the disclosure of any relevant / attached priority documents (copies of the previous application), and for this purpose, the features of these documents must be included in the claims of the present application. Dependent claims characterize further embodiments of independent inventions of the prior art by their features, even in the absence of features of the reference claims, and are used, in particular, to file divisional applications based on these claims. The invention defined in each claim may further comprise one or more of the features defined in the preceding description, in particular as specified by the reference signs and / or list of reference signs. The present invention also relates to designs in which some of the features set out in the preceding description are not implemented, especially insofar as these features are clearly unnecessary for the respective purpose or can be replaced by other technically equivalent means. [Explanation of symbols]

[0138] 1. Handheld Devices 2. Object 3 Conductors 4. Insulating sheath 5 Handle 6 Blade section 7 screws 8 Handle shell 9 Handle shell 10 Second end 11 Insert 12 screws 13 Engagement structure 14 Rib structure 15 Swivel pin 16 holes 17 blades 18 Cutting Edge 18' cutting edge 18” cutting edge 19 Rear Edge 20 Tip Edge 21 Bearing lug 22 outer edge 23 Cutting extension 24 Slide shoe 25 Blade protection part 26 Transition 27 Main surface of blade 28 parts 29 End 30 cutting protrusion 31 Protrusion 32 Container forming part 33 Latch section 34 Spring 35 holes 36 Operating handle 37 Latch recess 38 Latch Section 39 Liberation Section 40 recess 41 Finger 42 First Block 43 Second Block 44 axes 45 Bearing support part 46 Operating handle 47 Aperture 48 Lock extension 49 Lock bar extension 50 Radial shoulder 51 Spring 52 holes 53 Contact surface 54 En 55 holes 56 Bottom side 57 Edge 58 Transition region 59 Shoulder 60 First end 61 Tip a length b Length c length d length e direction f direction r First turning direction r' Second turning direction s direction s' direction t Turning direction t' Turning direction u Circumferential direction x pivot axis y pivot axis z-axis A1 1st operating position A2 2nd operating position A3 3rd operating position E Rotation plane G Swivel storage position L Longitudinal direction M Longitudinal direction g Length h Protrusion dimension k Rejection m length p angle bisector α Turning angle β Turning angle γ Turning angle δ Turning angle range ε angle

Claims

1. A handheld device (1) having a blade (17), the handheld device (1) having a handle portion (5) having a longitudinal extension (L), a first end (60) and a second end (10), and a blade portion (6) having the blade (17), the blade portion (6) assigned to the second end (10) is mounted on the handle portion (5) so as to be pivotable about a first pivot axis (x) in a pivot plane (E) extending in the direction of the longitudinal extension (L), thereby moving the blade (17) from a pivoted storage position (G), in which the second end (10) defines the boundary of the handheld device (1) along the longitudinal extension (L), to a first operating position (A1), in which the blade (17) projects beyond the second end (10) along the longitudinal extension (L), in a first pivot direction (r); and The handheld device, wherein the blade portion (6) can be returned to the pivoted storage position (G) in a second pivot direction (r'), and the handle portion (5) has an engagement structure (13) at the second end (10) for rolling support on an object to be cut (2), the blade (17) is latchable in the first operating position (A1) corresponding to a first pivot angle (α); and Once the latch is released, the engagement structure (13) can be used by allowing free pivoting between the blade portion (6) and the handle portion (5) within a pivot angle range (δ) exceeding the first pivot angle (α).

2. 2. The handheld device of claim 1, wherein the engagement structure (13) is a rib structure (14).

3. 3. A handheld device according to claim 1 or 2, characterized in that the engagement structure (13) extends beyond the blade (17) in the first pivot direction (r) in the first operating position (A1).

4. 4. A handheld device according to any one of claims 1 to 3, characterized in that the blade portion (6) is pivotable to a third operating position (A3) corresponding to a third pivot angle (γ) and that the blade portion (6) is latchable in the third operating position (A3).

5. 5. The handheld device of claim 4, wherein the third pivot angle (γ) corresponds to one-tenth to nine-tenths of the first pivot angle (α).

6. A handheld device according to any one of claims 1 to 5, characterized in that it is latchable in the pivoted storage position (G).

7. 7. A handheld device according to claim 6, characterized in that a latch can be formed between a handle end (29) of the blade portion (6) assigned to the handle portion (5) and a latch portion (33) provided on the handle portion (5).

8. 8. A handheld device according to claim 7, characterized in that the latch part (33) is movable perpendicularly to the pivot plane (E).

9. 9. A handheld device according to claim 7 or 8, characterized in that the latching part (33) can be blocked in the latched position by a first blocking part (42).

10. 10. The handheld device according to claim 9, wherein the first blocking portion (42) is a sliding portion movable between a release position and a blocking position in a plane parallel to the pivot plane (E).

11. 11. A handheld device according to claim 10, characterized in that the sliding part can be fixed in its blocking position by a second blocking part (43).

12. 12. A handheld device according to claim 11, characterized in that the second blocking part (43) is a flap part movable about a second pivot axis (y).

13. A handheld device according to any one of claims 7 to 12, characterized in that the handle end (29) of the blade portion (6) is housed within the handle portion (5).

14. A handheld device according to any one of the preceding claims, characterized in that the blade (17) has a cutting edge (18) and a trailing edge (19).

15. A handheld device according to any one of claims 1 to 14, characterized in that the blade (17) has a free second end located away from the handle end (29) in the direction of the longitudinal extension (M) and has a leading edge.

16. A handheld device (1) with a blade (17), The handheld device (1) has a handle portion (5) and a blade portion (6) having the blade (17), The blade portion (6) further has a longitudinal extension (M) and is fixed on the handle portion (5) at a first end (29); a second free end of the blade portion (6), located away from the first end (29) in the direction of the longitudinal extension (M), having a leading edge (20); The blade (17) further has a cutting edge (18); and In the handheld device, the leading edge (20) and the cutting edge (18) terminate in a slide shoe (24) that projects beyond the portion of the cutting edge (18) that extends along the longitudinal extension (M) of the blade portion (6), or A handheld device according to any one of claims 1 to 15, the cutting edge (18) has a cutting projection (30) that projects relative to the remainder of the cutting edge (18) extending along the longitudinal extension (M) of the blade portion (6); and A handheld device, characterized in that the cutting projection (30) is formed on the end (29) of the blade (17) facing the handle portion (5).

17. 17. The handheld device of claim 16, wherein the cutting projection (30) projects by a dimension (h) of 1.5 mm or more relative to the portion of the cutting edge (18) along the longitudinal extension (M) adjacent to the cutting projection (30).

18. 18. A handheld device according to claim 16 or 17, characterized in that, in the view in which the cutting edge (18) is shown by a line, the cutting protrusion (30) is realized in the shape of a gabled point, and the edges of the protrusion that meet at the tip (61) are realized in the shape of the cutting edge (18").

19. A handheld device, characterized in that said cutting projection (30) projects in said second pivot direction (r') relative to the remainder of said cutting edge (18).

20. A handheld device according to any one of claims 16 to 19, characterized in that the blade portion (6) is movable between a pivoted storage position and an operating position.

21. 21. A handheld device as claimed in claim 20, characterized in that a portion of the blade (17) having the cutting edge (18) with the cutting protrusion (30) is housed in a receiving portion (32) of the handle portion (5) in the pivoted storage position (G).

22. A handheld device according to any one of the preceding claims, characterized in that the blade (17) has a sliding shoe (24).

23. A handheld device according to any one of claims 14 to 22, characterized in that the blade (17) has a blade guard (25) assigned to the rear edge (19).

24. 24. A handheld device according to claim 23, characterized in that the blade guard (25) remains outside the receiver (32) in the pivoted storage position (G).

25. A handheld device (1) with a blade (17), The handheld device (1) has a handle portion (5) and a blade portion (6) having the blade (17), The blade portion (6) further has a longitudinal extension (M) and is fixed on the handle portion (5) at a first end (29); a second free end of the blade portion (6), located away from the first end (29) in the direction of the longitudinal extension (M), having a leading edge (20); In the handheld device, the blade (17) further comprises a cutting edge (18), and the blade portion (6) comprises a blade guard (25) covering a rear edge (19) of the blade (17) opposite the cutting edge (18), or A handheld device according to any one of claims 1 to 24, When the blade guard (25) is supported on the rear edge (19) of the blade (17), the cutting edge (18) is exposed; and The handheld device is characterized in that the blade protection portion (25) covers not only a part of the trailing edge (19) but also a part of the leading edge (20), and also covers the transition portion (26) of the leading edge (20) to the trailing edge (19).

26. 26. A handheld device according to claim 25, characterized in that the blade protection (25) has a recess (40) in the direction of the longitudinal extension (M) for receiving the index finger (41) of a user.

27. 27. A handheld device according to claim 25 or 26, characterized in that a part of the rear edge (19) is exposed between the handle part (5) and the blade protection part (25).

28. Handheld device according to any of claims 25 to 27, characterized in that said leading edge (20) is realized in the form of a cutting edge (18').

29. A handheld device according to any one of claims 25 to 27, characterized in that the area of ​​the leading edge (20) exposed beyond the blade protection (25) is less than 10 mm in length.

Images