Workpiece stop device for circular saw

Abstract

The invention relates to a workpiece locking device for a cross-cutting saw or a miter saw, comprising two stops (20) which are arranged at a distance from each other, a spacing region (80) being formed between the two stops (20) for the passage of a saw blade (76). In order to improve usability in a circular saw, at least one stop (20) has a stop part (30) with a receptacle (33), on or in which a stop replacement part (40) is exchangeably fastened, the stop replacement part (40) protruding at least partially onto the stop part (30) into a spacer region (80).

Description

Technical Field

[0001] The invention relates to a workpiece stop device for a crosscut saw, in particular a crosscut saw or a miter saw, the workpiece stop device having two stops arranged at a distance from each other, wherein a spacing area for passing a saw blade is formed between the two stops. Background Art

[0002] A cross-cut saw is known from US Pat. No. 5,819,619, which has a base part which can be erected on a flat working surface. The base part forms a workpiece support surface. In addition, the base part carries a swing arm at its rear region, the inclined section of which can be pivoted about a horizontal swing axis extending in the direction of the saw blade plane. A saw head is mounted on the swing arm and can be pivoted relative to the swing arm about a shearing axis. A workpiece stop device is mounted on the workpiece support surface. The workpiece stop device has two stops arranged at a distance from each other, between which a spacing area is formed, between which the saw blade can pass when the saw head is pivoted about the shearing axis. The stop parts each have a carrier, which is mounted on the workpiece support surface. Each carrier carries a stop member, which protrudes onto the workpiece support surface in order to provide a stop surface for the workpiece to be processed. The stop member can be adjusted relative to the carrier in order to change the width of the spacing between the two stop members. This is necessary, for example, when performing bevel cuts with the aid of a circular saw. The two stops must then be spaced further apart from one another in order to prevent the saw blade from cutting into one of the stops. By spacing the stops further apart from one another, the effective support surface for the workpiece becomes smaller, which leads to a worse positioning of small workpieces in particular. In addition, although this problem is well known, it sometimes still happens that the saw blade accidentally cuts into the stop. The stop must then be replaced, which results in corresponding costs. Summary of the invention

[0003] The object of the present invention is to provide a workpiece retaining device of the type mentioned at the outset which offers improved usability.

[0004] This object is achieved in that at least one stop portion has a stop part including a receptacle, and a stop replacement part is replaceably fixed on or in the receptacle so as to preferably form a kinematic unit with the stop part, the kinematic unit being in particular uniformly adjustable, wherein the stop replacement part at least partially protrudes over the stop part into the spacing area.

[0005] This new design has many advantages. If the saw blade accidentally cuts into the replacement stop, for example during beveling or, depending on the design of the cross-cut saw, during recess cutting, the stop itself is not damaged. The replacement stop can then be replaced simply and without great expense with a new, undamaged replacement stop.

[0006] Furthermore, applications are conceivable in which the crosscut saw or miter saw is equipped with an emergency brake system which detects the change in capacitance via the saw blade. In this case, it is advantageous if the stop replacement is made of a non-conductive material so that the emergency brake system is not triggered when the saw blade cuts into the stop replacement.

[0007] In addition, applications are also conceivable in which good, correctly positioned support of the workpiece is desired, in particular in the space between two stop elements. It is then advantageous if the stop replacement extends as far as possible into the space. When the entire space is covered by one or more stop replacements, an ideal contact with the workpiece is achieved.

[0008] For the best possible support of the workpiece, the stop element or the stop elements can be deliberately placed far into the spacing region. The crosscut saw is set into the desired cutting position and then the stop element is separated by adjusting the cut. This allows the workpiece to be supported on the stop element or the stop elements immediately at the saw kerf when the next workpiece is cut.

[0009] This process has advantages especially when a plurality of workpieces that remain the same must be cut through a specific cutting position.If another cutting position is then set, one or more stop replacements that cut in can be simply replaced.

[0010] Preferably, at least the region of the stop replacement that projects into the spacing region is made of a material that can be easily sawed, for example, of a plastic material. Preferably, the entire stop replacement is designed as a plastic part, in particular a cast plastic part. The one-piece design of the stop replacement not only reduces the cost expenditure of the component, but also simultaneously provides the high dimensional accuracy required for precise workpiece installation.

[0011] Preferably, the stop replacement is formed of an electrically non-conductive material, for example a plastic material, ie is configured as a plastic component, in particular a plastic injection molded component. The stop replacement as a plastic component prevents the emergency brake system of the crosscut saw from being triggered erroneously when contact is made between the saw blade and the stop replacement.

[0012] In a cross-cut saw, the saw blade can be moved in the swivel range between two extreme swivel positions. Preferably, the stops can therefore be moved as far as possible towards one another, i.e. the stop replacement cannot reach the swivel range of the saw blade, which can be achieved via a corresponding limit stop. In this way, it is reliably prevented that the stop itself would cut in. Thus, in the extreme swivel positions only one or more stop replacements cut in.

[0013] According to a preferred variant of the invention, it can be provided that the two stop elements each carry a stop replacement element in an exchangeable manner, wherein the stop replacement elements extend into the spacing region facing each other and between the longitudinal side ends of the stop replacement elements a saw kerf is formed or can be formed for the saw blade to pass through. In this arrangement, the user can move the two stop elements and the stop replacement element held thereon toward each other and set the desired saw kerf. By providing the two stop elements with the stop replacement element, sawing into one of the stop elements is prevented depending on the inclination of the saw blade.

[0014] However, it is also conceivable that the stop replacement is replaceably connected to the two stop parts, the stop replacement spanning the spacing area. This arrangement is particularly useful when, as described above, it is desired that the ideal workpiece contact surface, i.e. the workpiece support, be brought to the sawing seam. If the cross-cut saw is set to the desired sawing position, the stop replacement can be separated from the saw blade by adjusting the cut. Since the stop replacement is held on both sides on the stop parts, the generated parts of the stop replacement remain on the respectively associated stop parts. The workpiece can then be placed and cut.

[0015] In order to ideally support the workpiece, it can be provided that one stop member or multiple stop members have a workpiece abutment surface on the front side, which is aligned with the abutment surface on the front side of the stop replacement member and preferably transitions into it flush, or that two stop members have a workpiece abutment surface on the front side, which is aligned with the abutment surfaces on the front sides of the two stop replacement members.

[0016] Particularly advantageously, the stop replacement part that is especially connected interchangeably with two stop parts forms a flat or flat front side abutment surface to support the workpiece. In this way, the stop replacement part separated by adjusting the cutting forms a kind of anti-fragmentation protection and prevents the workpiece from tearing in the zone of the sawing seam.

[0017] A conceivable variant of the present invention is that at least one stop member has a linear guide portion including one or more guide elements, which are used to move the stop member relative to the fixed section along the width direction of the spacing area, wherein it is preferably provided that the movement of the stop replacement member in the direction of the spacing area is limited by means of a limit stop.

[0018] For an exact and positionally accurate correspondence of the stop replacement to the stop, it can be provided that a centering connection acts between the stop and the corresponding stop replacement, preferably in the region of the receptacle, wherein the centering connection has a centering receptacle into which a centering projection engages, wherein it is preferably provided that the centering connection has two centering receptacles arranged at a distance from one another, into which a centering projection engages. The centering connection can be designed in particular in such a way that in the installed position the workpiece contact surface of the front side of the stop is aligned with the contact surface of the front side of the stop replacement. The centering connection can also form a sliding guide between the stop and the stop replacement, so that the stop replacement can be pushed onto the stop until the stop replacement reaches its installed position, for example, strikes against a stop provided for this purpose of the stop.

[0019] Preferably, the two centering receptacles of the centering connection are arranged spaced apart from one another in a direction perpendicular to the workpiece support surface of the table in order to achieve a sufficient support distance in this direction and thus good torque support.

[0020] The workpiece stopping device according to the invention is characterized in that the stop replacement has at least one fixing receptacle, into which a fixing projection of the stop is embedded. In this way, a stable form-fitting connection between the stop and the stop replacement is provided. Preferably, the fixing projection is oriented so that the embedding movement of the fixing projection into the fixing receptacle is oriented in the direction of the workpiece support surface of the workbench. Thus, a form-fitting support of the stop replacement relative to the stop is achieved in the horizontal direction. Particularly preferably, the embedding movement is carried out parallel to the support surface, so that the stop replacement can be simply fixed to an already installed stop. Particularly preferably, at least two fixing projections are provided, which can be embedded in corresponding fixing receptacles.

[0021] If the stop replacement has a support section, which rests on a support surface of the stop, additional support of the stop replacement can be achieved. Preferably, the support surface is oriented in the direction of the workpiece support surface, preferably arranged parallel to the workpiece support surface. This allows forces that occur during the working application and are introduced via the workpiece to be reliably dissipated.

[0022] A possible design scheme of the present invention is that the stop member carries a clamping rod on its side facing away from the workpiece contact surface, and the clamping rod can be swung around a swivel bearing having a swivel axis extending transversely to the workpiece contact surface, wherein the stop member has a clamping member that can be moved between a release position and a clamping position via an eccentric member of the clamping rod.

[0023] The object of the present invention is also achieved by a stop replacement part, which is used for a workpiece stopping device, and the stop replacement part has a base body, and the base body has a front abutment surface, and the abutment surface is used for abutment of the workpiece to be processed, wherein the base body has a retaining section including one or more fixed receptacles and has a placement surface offset from the abutment surface. The stop replacement part can be replaceably fixed to the stop part by its retaining section and connected to the stop part via the fixed receptacle. The above-mentioned application advantages are achieved in this way. In particular, when the stop replacement part is damaged, the stop replacement part can be replaced with an undamaged stop replacement part, thereby restoring the availability of the stop part for the workpiece.

[0024] If the base body has two fixed receptacles arranged at a distance from one another and designed as interruptions or depressions in the holding section, a stable support of the stop replacement part relative to the stop part can be achieved. In particular, a fixing part or a fixing projection of the stop part can be embedded in the fixed receptacle. Of course, the same effect can be achieved in the case of (kinematic) reversal by providing a fixing projection on the stop replacement part and a fixed receptacle on the stop part.

[0025] If it is provided that the holding section is designed as a projection which projects on the base body, in particular as a projecting fixing arm, the stop replacement part can be easily mounted on the stop part.

[0026] For precise positioning of the stop replacement on the stop element, it can be provided that the basic body has two centering projections spaced apart from one another and arranged spaced apart from the at least one fastening receptacle.

[0027] The stop replacement according to the present invention can be designed so that the base has a transition section immediately adjacent to the abutment surface, so that the placement surface is connected to the transition section, and the placement surface is arranged offset relative to the abutment surface in the direction of the rear side of the stop replacement, preferably arranged parallel thereto. Therefore, the placement surface of the stop replacement can be abutted against the matching surface of the stop part at the rear side and be reliably supported there. The abutment surface arranged offset from the placement surface can be aligned with the workpiece abutment surface on the front side of the stop part and accurately oriented relative thereto. Therefore, accurate orientation of the stop replacement on the stop part can be achieved in a simple manner.

[0028] For better transmission of forces during operational use, it can be provided that the base body has a supporting section which projects onto the rear side of the base body opposite the contact surface and has a supporting counter surface.

[0029] A preferred design of the stop replacement may be that the base body has an end section with a main body edge in its region facing away from the holding section, the main body edge forming a longitudinal side end of the stop replacement to delimit a spacing region for the saw blade to pass through. Alternatively, however, it may also be provided that the base body has two holding sections on opposite sides, each of which has at least one fixing receptacle. As described above, such a stop replacement can be used to span the entire spacing region between the two stop portions, wherein the stop replacement is separated during the adjustment cut. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be explained in detail below based on the embodiments shown in the accompanying drawings. It is shown in the drawings:

[0031] Figure 1 A perspective view from the front right of a crosscut saw, i.e., a miter saw, is shown;

[0032] Figure 2 Shown according to Figure 1 A perspective view of a crosscut saw from the left front;

[0033] Figure 3 A perspective view of a stopper portion with a stopper and a stopper replacement is shown;

[0034] Figure 4 Shown according to Figure 3 a perspective view of the device from the rear;

[0035] Figure 5 Shown according to Figure 3 and Figure 4 A perspective view of a stop replacement as viewed from the front;

[0036] Figure 6 Shown according to Figure 5 a perspective view from the rear of the stop replacement; and

[0037] Figure 7 Shown according to Figure 1 and Figure 2 A perspective view of a crosscut saw of FIG. 1 , but with an alternative stop replacement. DETAILED DESCRIPTION

[0038] Figure 1A cross-cut saw, i.e. a miter saw, is shown, which has a base part 10. The base part 10 has a base, by means of which the miter saw can be erected on a mounting surface. The base part 10 has a receptacle 12. A rotary unit 13 is accommodated in the receptacle 12 so that it can pivot. The axis of rotation of the rotary unit 13 extends perpendicularly to the mounting surface, on which the miter saw can be erected. In order to pivot the rotary unit 13, an arm 14 is connected to the rotary unit 13, which extends forwardly onto the base part 10. The arm 14 accommodates a locking part 15. By means of the locking part 15, a set pivot position of the rotary unit 13 can be locked.

[0039] The table 11 and the rotary unit 13 together form a workpiece support surface on which a workpiece can be placed. A saw groove 16 is introduced into the arm 14 and into the rotary unit 13. A saw blade 76 of a cross-cut saw can be inserted into this saw groove 16.

[0040] Two stops 20 can be installed in the area of ​​the workpiece support surface, such as Figure 1 Here, the stop 20 can be positioned movably on both sides of the saw groove 16. A spacing region 80 is formed between the two stop portions 20, which is connected to the saw groove 16 and through which the saw blade 76 can pass when the saw blade performs a separating cut.

[0041] The stops 20 can be designed so that they each have a carrier 21 which is placed on the workpiece support surface by means of a connecting section 22 and can be connected to the table 11. Two carriers 21 are arranged on both sides of the saw groove 16, wherein the carriers end with ends 23.

[0042] like Figure 1 As shown, the carrier 21 has a guide 24 on which a stop 30 is adjustably fixed. Here, the adjustment movement of the stop 30 relative to the carrier 21 is performed horizontally and in the direction of the longitudinal extension of the carrier 21. Figure 3 and Figure 4 It is shown that the stop 30 can be provided for this purpose with a linear guide 34 . In this case, the linear guide 34 can have two guide elements 34 . 1 , 34 . 2 , which engage in the guide 24 of the carrier 21 .

[0043] Each carrier 21 has a stop surface 25 on the front side for supporting a workpiece. In the mounted state, the two stop surfaces 25 of the carrier 21 are aligned with each other.

[0044] Figure 1 and Figure 2 It is also shown that the base part 10 has a carrier 18, on which a swivel arm 50 is swivelably fastened. For this purpose, a swivel bearing with a swivel axis is used, which connects the swivel arm 50 to the carrier 18. The swivel axis extends in the horizontal direction and parallel to the workpiece support surface of the workbench 11. Preferably, the swivel axis is aligned with the saw groove 16.

[0045] Figure 1 It is shown that the carrier 18 can have a scale 18 . 1 . The set swivel position of the swivel arm 50 can be read at the scale 18 . 1 .

[0046] Figure 1 As shown, an adjustment device 60 can be mounted on the swing arm 50. The adjustment device 60 can be moved linearly along the longitudinal extension direction of the saw groove 16 on the guide portion 51 of the swing arm 20. Figure 1 As shown, the swing arm 50 can have two protruding guide rods extending parallel to one another, which form a guide 51. An adjustment device 60 having a sleeve-shaped guide projection 61 is guided on the guide 51. The guide projections 61 are connected to one another via a connecting section 62.

[0047] The adjustment device 60 can have a carrier 63, on which the saw head 70 is pivotably fixed. Preferably, the saw head 70 is pivotably connected to the carrier 63 by means of a transverse bearing 64. The pivot axis of the transverse bearing 64 extends transversely to the pivot axis of the swing arm 50 at a right angle and in one position of the saw head, extends horizontally, thus parallel to the workpiece support surface of the table 11.

[0048] The saw head 70 has a housing 71 on which a handle 72 with a switch 73 can be arranged. The switch 73 is used to activate a motor 77 of the saw head 70. The motor 70 can drive a saw blade support 75 and at the same time a saw blade 76 connected to the saw blade support 75.

[0049] A saw blade support 75 arranged on the saw head 70 defines a saw blade plane, in which a saw blade 76 which can be fastened to the saw blade support 75 can rotate.

[0050] Figure 1 It is shown that the saw head 70 can have a saw blade guard 74. The saw blade guard 74 encompasses the cutting edge of a saw blade 76 in the region of the upper side of the circular saw and thus forms an access protection.

[0051] The saw blade guard 74 is connected to an adjustable guard 78. The adjustable guard can be pivotably connected to the saw blade guard 74 in a known manner. The lower part of the cutting edge of the saw blade 76 can be framed by the adjustable guard 78. The adjustable guard 78 can be pivoted to release the cutting area of ​​the saw blade 76 during operation. In the state in which the adjustable guard releases the saw blade 46 from the bottom, the adjustable guard is preferably at least partially pivoted into the housing 71.

[0052] Figure 1 and Figure 2 The positioning of the saw head 70 is shown in a position in which it is pivoted at least partially about the infeed axis of the infeed bearing 64 downward in the direction of the workpiece support surface, wherein the adjustment device 60 is in a rear stop position.

[0053] exist Figure 1 and Figure 2 In the setting shown, the stop element 30 is locked by means of its linear guide 34 relative to the fixing section 17 in the width direction of the spacing region 80, so that the stop element is displaced maximally in the direction of the spacing region 80. The displacement movement of the stop element 30 and / or the stop replacement 40 in the direction of the spacing region 80 is thus limited by means of the limit stop.

[0054] like Figure 1 and Figure 2 As shown, the stop 30 does not extend into the saw blade plane in the position of maximum displacement in the direction of the spacing region 80, i.e., in the direction of the saw blade plane. Advantageously, the displacement of the stop 30 is defined in such a way that the stop does not intersect the saw blade plane regardless of the orientation of the saw blade plane. In other words, in the position of maximum displacement of the stop 30 in the direction of the spacing region 80, in at least one orientation of the saw blade plane, only the stop replacement 40 extends into the saw blade plane.

[0055] like Figure 3 and Figure 4 It is also shown that the stop element 30 has a front workpiece support surface 31 which is preferably designed to be flat and which can also preferably be arranged such that it is aligned with the stop surface 25 of the corresponding carrier 21 .

[0056] The stop element 30 can preferably be designed such that it has, on its side facing away from the linear guide 34 , a bevel 32 which slopes down in the direction of the spacing region 80 , and thus in the direction of the saw groove 16 .

[0057] Figure 4 It is shown that the stop 30 has a receiving portion 33. Preferably, the receiving portion 33 is designed to be accessible from the rear side of the stop 30. At least one fixing projection 34.6 can be provided in the region of the receiving portion 33. In the current embodiment, two fixing projections 34.6 are used. In a possible embodiment, the fixing projection 34.6 is connected in one piece to the component of the stop 30 that forms the workpiece contact surface 31. Preferably, the fixing projection 34.6 is configured in the shape of a molded cylindrical shape. It is conceivable that Figure 4 As shown, one fixing projection 34 . 6 or a plurality of fixing projections 34 . 6 have a spiral receptacle 34 . 7 . Here, the longitudinal center axis of the spiral receptacle 34 . 7 can extend perpendicularly to the workpiece contact surface 31 .

[0058] Adjacent to the at least one fastening projection 34 . 6 , the receptacle 33 has a contact surface 34 . 8 , which is preferably parallel to the front workpiece contact surface 31 .

[0059] In the region of the receptacle 33, additional centering receptacles 34.3, 34.4 can also be provided, which are preferably integrally molded onto a body forming the workpiece contact surface 31. The centering receptacles 34.3, 34.4 are arranged spaced apart from one another in a direction perpendicular to the workpiece support surface of the workbench 11, thereby forming a support spacing between the centering receptacles 34.3 and 34.4.

[0060] Figure 4 It is also shown that the stop 30 carries an adjustable clamping element 35 in the region of the guide 34. The clamping element 35 is arranged and designed such that, in the clamped position, it prevents a movement of the stop 30 relative to the carrier 21. In this case, the clamping element 35 can cooperate with a clamping lever 36. The clamping lever 36 is here connected to the stop 30 in a pivotable manner via a pivot bearing 37. The clamping lever 36 is preferably arranged on the rear side of the stop 30.

[0061] Figure 4 It is also shown that the clamping lever 36 has an eccentric 38 which cooperates with the clamping element 35. Figure 4 In the locked clamping position shown, the eccentric 38 has moved the clamping part 35 into its clamping position. If the clamping lever 36 is pivoted clockwise, the clamping part 35 is released and the clamping position is released.

[0062] Figure 3 and Figure 4 FIG. 4 shows that the stop replacement part 40 is replaceably connected to the stop part 30. Figure 5 and Figure 6 4 shows a stop replacement 40 in detail. As shown, the stop replacement 40 has a base body 49, on which a retaining section 41 in the form of a projecting arm can be molded.

[0063] The holding section 41 can be provided with one or more fastening receptacles 42. The fastening receptacles 42 can be designed as holes, as shown in the present exemplary embodiment.

[0064] The holding section 41 has a contact surface 43 on the front side, which, in the installed state of the stop replacement 40 , preferably extends parallel to the workpiece contact surface 31 of the stop element 30 .

[0065] The stop replacement part 40 can be designed in such a way that the contact surface 43 transitions via a projection 44 of a transition section 47 into a front contact surface 48 .

[0066] Conceivable variant designs of the contact surface 48 are as follows: Figure 5 and Figure 6 As shown, a recess 48 . 1 is arranged in the contact surface 48 . The recess 48 . 1 serves to improve the production of the stop replacement 40 .

[0067] The stop replacement 40 can be designed to have centering projections 45, 46, which are designed to cooperate with the centering receptacles 34.3, 34.4. Advantageously, the centering receptacles 34.3, 34.4 and the centering projections 45, 46 cooperate so that the stop replacement 40 can be moved perpendicularly to the abutment surface 48 and / or the workpiece abutment surface 31.

[0068] The stop replacement part 40 forms, in its region facing away from the retaining section 41 , a longitudinal end 48 . 2 which can be positioned laterally of the saw groove 16 in the installed state.

[0069] The stop replacement 40 can be provided in its rear region with a support section 48.3 which is preferably integrally formed protrudingly on the base body 49. The support section 48.3 forms a support counter-surface on its underside which rests on the support surface 34.5 of the stop 30.

[0070] In order to mount the stop replacement 40 on the stop 30, the stop replacement 40 is placed on the stop 30 at the rear side in the region of the receptacle 33. Here, the centering projections 45, 46 are located behind the centering receptacles 34.3, 34.4 at the rear side. The stop replacement 40 can now be pushed onto the centering receptacles 34.3, 34.4 with its centering projections 45, 46, wherein the displacement movement is carried out perpendicularly to the workpiece contact surface 31 from the rear to the front. The displacement movement of the stop replacement 40 is blocked by the support surface 43, which strikes the support surface 34.8.

[0071] In the mounted state, the fixing projection 34 . 6 engages in the fixing receptacle 42 . Finally, the fastening screw 90 can now be screwed into the screw receptacle 34 . 7 of the stop element 30 and thus the stop replacement 40 can be fastened to the stop element 30 .

[0072] It can also be provided that an adjusting element, for example an adjusting screw (not shown in the figure), preferably a countersunk screw, is provided on the holding section 41 to orient the contact surface 48 relative to the workpiece contact surface 31. This is of great significance for the precise contact of the workpiece on the stop 20 and / or the stop 30. The adjusting element can then be used to orient the holding section 41 in the receptacle 33, for example on the contact surface 34.8.

[0073] Figure 2 The arrangement of a cross-cut saw is shown in which the rotating part 13 is pivoted maximally in one direction. In addition, the saw head 70 is pivoted with the swing arm 50 relative to the base part 10. This is an example of a possible desired cutting position. The stop 20 can then be provided. For this purpose, the stop 30 can be moved towards each other with the stop replacement 41 fixed thereto, so that the gap area between the longitudinal side ends 48.2 of the stop replacement 40 becomes smaller.

[0074] The workpiece to be processed can then be placed against the stop surface 25 of the carrier 21 and the workpiece contact surface 31 of the stop 30 aligned therewith and against the front contact surface 48 of the stop replacement 40 and supported thereon. Then, a separating cut can now be made in the workpiece by means of the saw blade 76.

[0075] If the stop 20 is accidentally set incorrectly at this time, so that the stop replacement part 40 extends into the working area of ​​the saw blade 76, the stop replacement part will be damaged by the saw blade 76 during the separating cut. The damaged stop replacement part 40 can then be replaced with a new stop replacement part 40.

[0076] Figure 7 A miter saw with another variant design of a stop replacement 40 is shown. The design of the miter saw is basically the same as Figure 1 and Figure 2 The design of the miter saw shown in FIG. 1 is consistent with that of the miter saw shown in FIG. In this regard, reference may be made to the above embodiments to avoid repetition. Therefore, only the differences will be discussed below.

[0077] like Figure 7 As shown, the entire spacing region 80 is covered by the stop replacement 40 and is fixed to the stop 30 on both sides, i.e. on both sides of the saw blade plane. In other words, the saw blade plane intersects the stop replacement 40 so that when the separating cut is performed, the stop replacement 40 is cut into to form a so-called zero-clearance stop. In a zero-clearance stop, there is no clearance between the workpiece stop, in particular the stop 20, and the saw blade 76. Thus, an ideal contact for the workpiece is formed in the region of the spacing region 80.

[0078] To produce a zero clearance stop, such as Figure 7 As shown, the stop replacement 40 fixed on both sides is separated by means of a saw head 70 set at the desired cutting angle and then separated by adjusting the cut. This allows the workpiece to be supported on the stop replacement 40 immediately at the sawing kerf during subsequent workpiece cutting.

[0079] exist Figure 7 In the arrangement shown, the stop 20 is locked in the position of maximum displacement in the direction of the spacing region 80, i.e. in the direction of the saw blade plane, so that a defined side edge and a defined width of the spacing region 80 are achieved to accommodate a stop replacement 40 that matches this edge and this spacing. Advantageously, the stop replacement 40 extends from the stop 30 into the region of the workpiece support surface.

Claims

1. A workpiece stop device for a crosscut saw, in particular a crosscut saw or a miter saw, the workpiece stop device comprising two stops (20) arranged at a distance from one another, wherein: A spacing area (80) for passing a saw blade (76) is formed between the two stop portions (20). It is characterized in that at least one stop portion (20) has a stop part (30) including a receptacle (33), and a stop replacement part (40) is replaceably fixed on or in the receptacle, wherein the stop replacement part (40) at least partially protrudes over the stop part (30) into the spacing area (80).

2. The workpiece stopping device according to claim 1, characterized in that: The two stop parts (20) each carry a stop replacement part (40) in an exchangeable manner, wherein the stop replacement parts (40) extend into the spacing area (80) facing each other and form a saw slot for passing the saw blade (76) between the longitudinal side ends (48.2) of the stop replacement parts (40). Alternatively, the stop replacement part (40) is replaceably connected to the two stop parts (30), and the stop replacement part spans the spacing area (80).

3. The workpiece stopping device according to claim 1 or 2, characterized in that: One or more stop elements (30) have a front workpiece contact surface (31) which is aligned with a front contact surface (48) of the stop replacement element (40) and preferably transitions flush therewith, Alternatively, the two stop members (30) have front workpiece contact surfaces (31) which are aligned with front contact surfaces (48) of the two stop replacement members (40).

4. The workpiece stopping device according to any one of claims 1 to 3, characterized in that: A centering connection acts between the stop element (30) and the corresponding stop replacement element (40), preferably in the region of the receptacle (33), wherein the centering connection has a centering receptacle (34.3, 34.4) into which a centering projection (45, 46) engages, wherein it is preferably provided that the centering connection has two centering receptacles (34.3, 34.4) arranged spaced apart from each other, into which a centering projection (45, 46) engages.

5. The workpiece stopping device according to any one of claims 1 to 4, characterized in that: The stop replacement part (40) has at least one fastening receptacle (42) in which a fastening projection (34.6) of the stop part (30) engages.

6. The workpiece stopping device according to any one of claims 1 to 5, characterized in that: The stop replacement part (40) has a support section (48.3) which rests on a support surface (34.5) of the stop part (30).

7. A stop replacement part (40), which is used for a workpiece stopping device, in particular according to any one of claims 1 to 6, and the stop replacement part has a base body (49), which has a front abutment surface (48) for abutting against a workpiece to be processed, wherein the base body (49) has a retaining section (41) including one or more fixed receptacles (42) and has a mounting surface (43) offset from the abutment surface (48).

8. The stop replacement (40) according to claim 7, characterized in that: The base body (49) has two fixing receptacles (42) arranged at a distance from one another and designed as interruptions or depressions in the holding section (41).

9. The stop replacement (40) according to claim 7 or 8, characterized in that: The retaining section (41) is designed as a projection which is designed to protrude on the base body (49), in particular as a protruding fixing arm.

10. The stop replacement (40) according to any one of claims 7 to 9, characterized in that: The base body (49) has two centering projections (45, 46) which are spaced apart from one another and are arranged spaced apart from at least one fastening receptacle (42).

11. The stop replacement (40) according to any one of claims 7 to 10, characterized in that: The base body (49) has a transition section (47) adjacent to the abutment surface (48), so that the seating surface (43) is connected to the transition section (47), and the seating surface (43) is arranged offset relative to the abutment surface (48) in the direction of the rear side of the stop replacement part (40), preferably arranged parallel to it.

12. The stop replacement (40) according to any one of claims 7 to 11, characterized in that: The base body (49) has a supporting section (48.3) which projects onto the rear side of the base body (49) opposite the contact surface (48) and has a supporting counter surface (48.4).

13. The stop replacement (40) according to any one of claims 7 to 12, characterized in that: The base body (49) has an end section with a main body edge in its region facing away from the retaining section (41), which forms a longitudinal end (48.2) of the stop replacement part (40) to delimit a spacing region (80) for the saw blade (76) to pass through. Alternatively, the base body (49) has two holding sections (41) on opposite sides, each of which has at least one fastening receptacle (42).

14. A crosscut or miter saw having a base part (10) with a carrier (18) and a rotary unit (13), wherein: The rotating unit (13) forms a workpiece support surface and has a rotation axis oriented perpendicular to the workpiece support surface, wherein a swing arm (50) is connected to the carrier (18) so as to be pivotable about a swing axis oriented perpendicular to the rotation axis, wherein the swing arm (50) carries a saw head (70), and the saw head is constructed so that a saw blade (76) is accommodated in a saw blade holder (75) defining a saw blade plane, wherein the saw head (70) is coupled to the swing arm (50) so as to be pivotable about a transverse axis of a transverse bearing (64), wherein a saw groove (16) is constructed in the workpiece support surface of the rotating unit (13) along the saw blade plane so as to partially accommodate the saw blade (76) during separating cutting, characterized in that it has a workpiece stopping device according to any one of claims 1 to 6 and / or a stop replacement according to any one of claims 7 to 13.

15. A crosscut saw or a miter saw according to claim 14, characterized in that At least one stop member (30) has a linear guide (34) comprising one or more guide elements (34.1, 34.2) (34.3, 34.4), wherein the one or more guide elements are configured to move the stop member (30) relative to the fixing section (17) in the width direction of the spacing area (80), wherein preferably, provision is made for limiting the displacement movement of the stop replacement member (40) in the direction of the spacing area (80) by means of a limit stop, in particular, such that The stop (30) does not extend into the saw blade plane in the position of maximum displacement in the direction of the spacing region (80), and / or In the position of the stop element (30) which is maximally displaced in the direction of the spacing region (80), the stop replacement element (40) extends into the saw blade plane.

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