Vise and reciprocating saw

Abstract

To inhibit deterioration of workability when a vise having a chain is fixed to a material to be scraped (a scraped material).SOLUTION: A vise to be attached to a reciprocating saw includes: a chain which has a pin and is to be wound around a scraped material; a vise base including an insertion space into which the pin is inserted, and a recess which is provided in the insertion space and on which the pin is hooked, the vise base configured to be placed in contact with the scraped material; a tightening tool which is connected to the chain and to be operated to pull the chain wound around the scraped material; and an elastic member which prevents dropping of the pin hooked on the recess.SELECTED DRAWING: Figure 14

Description

[Technical Field]

[0001] The technology disclosed in this specification relates to a vise and a reciprocating saw. [Background technology]

[0002] BACKGROUND ART In the technical field related to reciprocating saws, a reciprocating saw to which a vise is attached, such as that disclosed in Patent Document 1, is known. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 3-19623 Summary of the Invention [Problem to be solved by the invention]

[0004] When securing a vise to a workpiece such as a steel pipe, the worker places the vise base against the workpiece, wraps the chain around the workpiece, and then hooks the chain pin into a recess in the vise base. After hooking the chain pin into the recess in the vise base, the worker turns the lever. When the lever is turned, the chain is pulled and the workpiece is clamped by the chain. Clamping the workpiece by the chain secures the vise to the workpiece. After hooking the chain pin into the recess in the vise base, the chain may fall off the vise base. If the chain is prone to falling off the vise base, workability is reduced when securing the vise to the workpiece.

[0005] The technology disclosed in this specification aims to suppress a decrease in workability when fixing a vise having a chain to a workpiece. [Means for solving the problem]

[0006] This specification discloses a vise attached to a reciprocating saw. The vise may include a chain having a pin and wound around a workpiece, an insertion space into which the pin is inserted, a vise base having a recess provided in the insertion space and into which the pin is hooked and abutting against the workpiece, a fastener connected to the chain and operated to pull the chain wound around the workpiece, and an elastic member that prevents the pin hooked in the recess from falling off. [Effects of the Invention]

[0007] According to the technology disclosed in this specification, the decrease in workability when fixing a vise having a chain to a workpiece is suppressed. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front perspective view showing a reciprocating saw according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing the reciprocating saw according to the first embodiment, as seen from the rear side. [Figure 3] FIG. 3 is a view of the reciprocating saw according to the first embodiment as seen from above. [Figure 4] FIG. 4 is a view of the reciprocating saw according to the first embodiment as seen from below. [Figure 5] FIG. 5 is a view of the reciprocating saw according to the first embodiment as seen from the right side. [Figure 6] FIG. 6 is a cross-sectional view showing the reciprocating saw according to the first embodiment. [Figure 7] FIG. 7 is an exploded perspective view from the rear showing the reciprocating saw according to the first embodiment. [Figure 8] FIG. 8 is a perspective view showing the vise according to the first embodiment, as viewed from the front side. [Figure 9] FIG. 9 is a perspective view showing the vise according to the first embodiment, as seen from the rear side. [Figure 10] FIG. 10 is a view of the vise according to the first embodiment as seen from the right side. [Figure 11]FIG. 11 is a cross-sectional view showing the vise according to the first embodiment. [Figure 12] FIG. 12 is a cross-sectional view showing a part of the vise according to the first embodiment. [Figure 13] FIG. 13 is a perspective view showing a part of the vise according to the first embodiment, seen from the rear side. [Figure 14] FIG. 14 is a perspective view from the rear side showing a part of the chain before it is attached to the vise base according to the first embodiment. [Figure 15] FIG. 15 is an exploded perspective view from the rear side showing a part of the vise according to the first embodiment. [Figure 16] FIG. 16 is a view of a part of the vise according to the first embodiment seen from above. [Figure 17] FIG. 17 is a perspective view showing the elastic member according to the first embodiment, as viewed from the rear side. [Figure 18] FIG. 18 is a view of a part of the chain just before it is inserted into the insertion space according to the first embodiment, as seen from the right side. [Figure 19] FIG. 19 is a perspective view showing the front part of the reciprocating saw according to the embodiment. [Figure 20] FIG. 20 is a perspective view showing a fixing structure between a slider and a blade according to the embodiment. [Figure 21] FIG. 21 is a view of the front part of the reciprocating saw according to the embodiment, seen from below. [Figure 22] FIG. 22 is a diagram illustrating a method for replacing the blade clamp according to the embodiment. [Figure 23] FIG. 23 is a diagram illustrating a method for replacing the blade clamp according to the embodiment. [Figure 24] FIG. 24 is a cross-sectional view for explaining a method for fixing the vise according to the second embodiment to a workpiece. [Figure 25] FIG. 25 is a cross-sectional view for explaining a method for fixing the vise according to the second embodiment to a workpiece. [Figure 26] FIG. 26 is a cross-sectional view for explaining a method for fixing the vise according to the second embodiment to a workpiece. [Figure 27] FIG. 27 is a cross-sectional view for explaining a method for fixing the vise according to the second embodiment to a workpiece. [Figure 28] FIG. 28 is a diagram schematically showing a part of the vise according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] In one or more embodiments, the vise may include a chain having a pin and wound around the workpiece, an insertion space into which the pin is inserted, a recess provided in the insertion space into which the pin is hooked, a vise base that abuts against the workpiece, a fastener connected to the chain and operated to pull the chain wound around the workpiece, and an elastic member that prevents the pin hooked in the recess from falling out.

[0010] In the above configuration, the chain pin is prevented from falling out of the recess by the elastic member after being hooked into the recess. Preventing the pin from falling out of the recess reduces the likelihood of the pin falling out of the vise base after being hooked into the recess. Preventing the chain pin from falling out of the vise base reduces the decrease in workability when fixing the vise to the workpiece.

[0011] In one or more embodiments, a pair of recesses may be provided in the insertion space so that the left and right ends of the pin can be hooked therein. The elastic member may include a pair of leaf springs attached to the vise base. The pair of elastic members may be disposed at the insertion opening of the insertion space. The distance between the pair of elastic members may be shorter than the length of the pin.

[0012] In the above configuration, when the chain pin is inserted into the insertion space to be hooked into the recess, the pin passes between a pair of elastic members arranged at the insertion opening of the insertion space. Because the distance between the pair of elastic members is shorter than the length of the chain pin, when the pin passes between the pair of elastic members, the pair of elastic members elastically deform to move away from each other, allowing the pin to be smoothly inserted into the insertion space. After the pin is inserted into the insertion space and hooked into the recess, the pair of elastic members return to their original position to move closer to each other. Because the distance between the pair of elastic members is shorter than the length of the chain pin, the pin is covered by the elastic members after being hooked into the recess. Because the pin is covered by the elastic members, the pin is prevented from falling off the vise base after being hooked into the recess. Because the chain pin is prevented from falling off the vise base, a decrease in workability when fixing the vise to the workpiece is prevented. Furthermore, when hooking the pin into the recess, the pin can be simply inserted into the insertion space.

[0013] In one or more embodiments, the vise base may have a left wall and a right wall facing the left wall. The insertion space may be provided between the left wall and the right wall. The elastic member may be supported by each of the left wall and the right wall.

[0014] In the above configuration, the insertion space is provided between the left wall portion and the right wall portion, and the elastic members are supported by the left wall portion and the right wall portion, respectively, so that the pair of elastic members are disposed at the insertion opening of the insertion space.

[0015] In one or more embodiments, the elastic member may have a first portion fixed to the vise base, a second portion disposed closer to the center of the insertion space than the first portion, and a folded portion connecting the first portion and the second portion. The distance between the pair of second portions may be shorter than the length of the pin.

[0016] In the above configuration, the second portion functions as a countersink, so that the pin is effectively prevented from falling off the vise base after being hooked into the recess.

[0017] In one or more embodiments, the second portion may be positioned to cover the recess.

[0018] The above configuration effectively prevents the pin from falling off the vise base after being caught in the recess.

[0019] In one or more embodiments, the vise may include a support plate that supports the first portion from outside the insertion space, and screws that fix the support plate and the first portion to the vise base.

[0020] In the above configuration, the first portion is stably fixed to the vise base.

[0021] In one or more embodiments, the fastener may include a rod connected to the lever via a hinge portion, and a retaining member connected to a lower end of the rod and holding one end of the chain wound around the workpiece. The elastic member may include a coil spring disposed around the rod and generating an elastic force such that the pin hooked in the recess is pressed against the inner surface of the recess.

[0022] In the above configuration, the chain is pulled by the elastic member so that the pin is pressed against the inner surface of the recess, preventing the pin from falling off the vise base after being hooked into the recess. Since the chain pin is prevented from falling off the vise base, a decrease in workability when fixing the vise to the workpiece is prevented. Furthermore, since the chain is pulled by the elastic member so as to tighten the workpiece after the pin is hooked into the recess, the chain is prevented from loosening.

[0023] In one or more embodiments, the lever may be rotated so that the workpiece is clamped by the chain while the pin is hooked into the recess.

[0024] In one or more embodiments, the reciprocating saw may include a motor, a reciprocating motion conversion mechanism positioned forward of the motor that reciprocates the blade based on the rotational force of the motor, and a vise mounting portion positioned forward of the motor to which the above-mentioned vise is attached.

[0025] With the above configuration, the deterioration of workability when fixing the vise to the workpiece is suppressed, and therefore the deterioration of workability when using a reciprocating saw is also suppressed.

[0026] Hereinafter, an embodiment will be described with reference to the drawings. In the embodiment, the positional relationship of each part will be described using the terms left, right, front, rear, top, and bottom. These terms indicate relative positions or directions based on the center of the reciprocating saw 1. The reciprocating saw 1 has a motor 8 as a power source.

[0027] In the embodiment, the direction parallel to the rotation axis AX of the motor 8 is referred to as the axial direction, the direction circumferentially around the rotation axis AX is referred to as the circumferential direction or rotation direction, and the radial direction of the rotation axis AX is referred to as the radial direction.

[0028] In this embodiment, the rotation axis AX extends in the front-rear direction. An axial direction parallel to the rotation axis AX is the front-rear direction. In addition, in the radial direction, a position closer to or approaching the rotation axis AX will be referred to as the radially inner side, and a position farther from or away from the rotation axis AX will be referred to as the radially outer side.

[0029] [First embodiment] A first embodiment will be described.

[0030] <Reciprocating saw> FIG. 1 is a perspective view from the front showing the reciprocating saw 1 according to the first embodiment. FIG. 2 is a perspective view from the rear showing the reciprocating saw 1 according to the first embodiment. FIG. 3 is a view of the reciprocating saw 1 according to the first embodiment as seen from above. FIG. 4 is a view of the reciprocating saw 1 according to the first embodiment as seen from below. FIG. 5 is a view of the reciprocating saw 1 according to the first embodiment as seen from the right side. FIG. 6 is a cross-sectional view of the reciprocating saw 1 according to the first embodiment. FIG. 7 is an exploded perspective view from the rear showing the reciprocating saw 1 according to the first embodiment.

[0031] The reciprocating saw 1 includes a rear housing 2, a front housing 4, a battery mounting section 5, a vise mounting section 6, a controller 7, a motor 8, a fan 9, a reciprocating motion conversion mechanism 10, a slider 11, and a shoe 12.

[0032] The rear housing 2 is made of synthetic resin. The rear housing 2 includes a left housing 2L and a right housing 2R disposed on the right side of the left housing 2L. The left housing 2L and the right housing 2R form a pair of half-split housings. The rear housing 2 is composed of a pair of half-split housings. The left housing 2L and the right housing 2R are fixed together with a plurality of screws 2S.

[0033] The rear housing 2 includes a grip portion 21 , a storage portion 22 , a battery holding portion 23 , a connecting portion 24 , and a guard portion 25 .

[0034] The grip portion 21 is held by an operator. The storage portion 22 stores the controller 7 and the motor 8. The storage portion 22 is cylindrical. The motor 8 is disposed in front of the controller 7. The battery holding portion 23 holds the battery pack 13 via the battery attachment portion 5.

[0035] The connecting portion 24 is arranged below the grip portion 21. The connecting portion 24 is arranged to connect the storage portion 22 and the battery holding portion 23. The grip portion 21 is also arranged to connect the storage portion 22 and the battery holding portion 23. The grip portion 21 and the connecting portion 24 are each shaped like a rod that is long in the front-to-rear direction. The storage portion 22 is arranged in front of the grip portion 21 and the connecting portion 24. The battery holding portion 23 is arranged behind the grip portion 21 and the connecting portion 24. In the embodiment, the rear housing 2 includes a loop-shaped handle portion.

[0036] The guard portion 25 protrudes rearward from the lower portion of the battery holding portion 23. The lower surface of the battery pack 13 attached to the battery attachment portion 5 and the upper surface of the guard portion 25 face each other with a gap between them. An operator can perform work while supporting the guard portion 25 from below with their hands.

[0037] A trigger lever 14 is disposed on the grip portion 21. The trigger lever 14 is operated by an operator to start the motor 8. By operating the trigger lever 14, the motor 8 is switched between being driven and being stopped.

[0038] The front housing 4 is disposed in front of the rear housing 2. The front housing 4 is cylindrical. The rear end of the front housing 4 is fixed to the front end of the rear housing 2. The front housing 4 includes a gear case 19. The front housing 4 houses a reciprocating motion converting mechanism 10 and a slider 11. The front housing 4 is covered with a cover 3. The cover 3 is made of rubber and is insulating.

[0039] The battery attachment section 5 is disposed at the rear of the battery holding section 23. The battery pack 13 is attached to the battery attachment section 5. The battery pack 13 functions as a DC power source for the reciprocating saw 1. The battery pack 13 is detachable from the battery attachment section 5. The battery pack 13 is attached to the battery attachment section 5 by inserting it downward from the top of the battery attachment section 5. The battery pack 13 is removed from the battery attachment section 5 by removing it upward from the battery attachment section 5.

[0040] The battery pack 13 includes a secondary battery. In this embodiment, the battery pack 13 includes a rechargeable lithium-ion battery. When attached to the battery attachment portion 5, the battery pack 13 can supply power to the reciprocating saw 1. The motor 8 is driven based on the power supplied from the battery pack 13.

[0041] The controller 7 controls at least the motor 8. The controller 7 has a circuit board and a plurality of electronic components mounted on the circuit board. Examples of the electronic components include a microcomputer and switching elements. The controller 7 is accommodated in the rear housing 2.

[0042] The motor 8 is the power source of the reciprocating saw 1. The motor 8 is an electric motor. The motor 8 is an inner rotor type brushless motor. The motor 8 has a stator 15, a rotor 16, and a rotor shaft 17. The stator 15 is disposed around the rotor 16. The rotor shaft 17 is fixed to the rotor 16. The rotor 16 and the rotor shaft 17 rotate relative to the stator 15. The rotor 16 and the rotor shaft 17 rotate around a rotation axis AX. The rotation axis AX extends in the front-to-rear direction.

[0043] The stator 15 has a cylindrical stator core, an insulator fixed to the stator core, and a plurality of coils wound around the teeth of the stator core via the insulator. The rotor 16 has a cylindrical rotor core and a permanent magnet fixed to the rotor core. The rotor shaft 17 is disposed inside the rotor core and fixed to the rotor core. The rotor core and the rotor shaft 17 may be integral.

[0044] At least a portion of the motor 8 is housed in a motor case 18. The motor case 18 is housed in the rear housing 2. The stator 15 is disposed inside the motor case 18. The stator 15 is fixed to the motor case 18. A gear case 19 of the front housing 4 is disposed in front of the motor case 18. The reciprocating motion converting mechanism 10 is housed in the gear case 19.

[0045] The rear end of rotor shaft 17 is rotatably supported by bearing 20A. The front end of rotor shaft 17 is rotatably supported by bearing 20B. Bearing 20A is held by motor case 18. Bearing 20B is held by gear case 19.

[0046] The fan 9 is fixed to the front of the rotor shaft 17. When the rotor shaft 17 rotates, the fan 9 rotates. The rotation of the fan 9 generates an air flow around the motor 8. The motor 8 is cooled by the air flow generated by the rotation of the fan 9.

[0047] An air intake port 33 is provided at the bottom of the accommodation portion 22. An exhaust port 60 is provided in the cover 3. Air that has passed around the motor 8 is discharged to the outside of the front housing 4 through the exhaust port 60. In this embodiment, the air intake port 33 is covered with a filter unit 34. The filter unit 34 has a filter 34A and a filter holder 34B that holds the filter 34A. The filter holder 34B is attached to the bottom of the accommodation portion 22. Air around the rear housing 2 flows into the interior of the rear housing 2 through the air intake port 33 in which the filter 34A is arranged, thereby preventing foreign matter around the rear housing 2 from entering the interior of the rear housing 2 through the air intake port 33.

[0048] A pinion gear 26A is provided at the front end of the rotor shaft 17. The pinion gear 26A is disposed inside the gear case 19. The rotor shaft 17 is coupled to the reciprocating motion converting mechanism 10 via the pinion gear 26A.

[0049] The reciprocating motion converting mechanism 10 converts the rotational motion of the rotor shaft 17 into reciprocating motion in the front-to-rear direction. The reciprocating motion converting mechanism 10 is disposed in front of the motor 8. The reciprocating motion converting mechanism 10 reciprocates a slider 11 in the front-to-rear direction based on the rotational force of the motor 8. The slider 11 is disposed in front of the motor 8. A blade 200 (see Figure 19), which is a type of tool tip, is fixed to the slider 11. The reciprocating motion of the slider 11 in the front-to-rear direction causes the blade 200 to reciprocate in the front-to-rear direction.

[0050] The reciprocating motion converting mechanism 10 includes a bevel gear 26B to which a pinion gear 26A is coupled, a support shaft 27 to which the bevel gear 26B is fixed, and an eccentric pin 28 provided at an eccentric position on the bevel gear 26B. The support shaft 27 is rotatably supported by bearings 29A and 29B. A slider block 11A is provided on the slider 11. At least a portion of the eccentric pin 28 is disposed inside the slider block 11A. The bevel gear 26B rotates about a rotation axis BX perpendicular to the rotation axis AX. As the bevel gear 26B rotates, the eccentric pin 28 revolves around the rotation axis BX, causing the eccentric pin 28 to move left and right inside the slider block 11A. As the eccentric pin 28 revolves around the rotation axis BX and moves left and right inside the slider block 11A, the slider 11 reciprocates forward and backward.

[0051] The slider 11 reciprocates in the front-to-rear direction due to the rotational force of the motor 8 transmitted via the reciprocating motion converting mechanism 10. The slider 11 is guided in the front-to-rear direction by slider guides 31 and 32. The slider 11 has a screw hole 11B and an opening 11C for fixing the blade 200. The screw hole 11B and the opening 11C are provided at the front end of the slider 11. The opening 11C is provided in front of the screw hole 11B. The slider 11 functions as a tool holder to which a tool bit is attached.

[0052] The shoe 12 is disposed at the front end of the front housing 4. The shoe 12 is attached to the front housing 4.

[0053] <Vice> Fig. 8 is a perspective view of the vise 40 according to the first embodiment, seen from the front. Fig. 9 is a perspective view of the vise 40 according to the first embodiment, seen from the rear. Fig. 10 is a view of the vise 40 according to the first embodiment, seen from the right side.

[0054] The vise 40 is attached to the vise attachment portion 6. The vise 40 is fixed to the workpiece. In this embodiment, the vise 40 is a chain vise. The vise 40 includes a vise base 41 that contacts the workpiece, a chain 42 that is supported by the vise base 41 and wound around the workpiece, a fastener 43 that is connected to the chain 42 and is operated to pull the chain 42 wound around the workpiece, an attachment rod 44 that is attached to the vise attachment portion 6, an elastic member 45 that is attached to the vise base 41, a support plate 46 that supports the elastic member 45, and screws 47 that fix the elastic member 45 and the support plate 46 to the vise base 41.

[0055] The vise mounting portion 6 is disposed forward of the motor 8. The vise mounting portion 6 is disposed forward of the reciprocating motion converting mechanism 10. The vise mounting portion 6 includes a hole provided in the front end portion of the front housing 4. The mounting rod 44 includes a rod-shaped member that is inserted into the hole of the vise mounting portion 6.

[0056] The vise 40 is detachably attached to the vise mounting portion 6. In this embodiment, the vise base 41 is disposed on the left side of the front housing 4. The vise 40 is attached to the vise mounting portion 6 by inserting the attachment rod 44 into the vise mounting portion 6 from the left side to the right side of the vise mounting portion 6. The vise 40 is detached from the vise mounting portion 6 by removing the attachment rod 44 from the vise mounting portion 6 to the left.

[0057] The vise base 41 may be disposed on the right side of the front housing 4. The vise 40 may be attached to the vise mounting portion 6 by inserting the attachment rod 44 into the vise mounting portion 6 from the right side toward the left side of the vise mounting portion 6. The vise 40 may be removed from the vise mounting portion 6 by removing the attachment rod 44 from the vise mounting portion 6 toward the right side.

[0058] The fastening tool 43 is operated to fasten the chain 42 wound around the workpiece to the workpiece. When cutting the workpiece, the operator brings the vise base 41 into contact with the workpiece and winds the chain 42 around the workpiece. After the chain 42 has been wound around the pipe, the operator operates the fastening tool 43 to fasten the chain 42 to the workpiece. This fixes the vise 40 to the workpiece.

[0059] FIG. 11 is a cross-sectional view showing the vise 40 according to the first embodiment. FIG. 12 is a cross-sectional view showing a portion of the vise 40 according to the first embodiment. FIG. 13 is a perspective view from the rear showing a portion of the vise 40 according to the first embodiment. FIG. 14 is a perspective view from the rear showing a portion of the chain 42 before being attached to the vise base 41 according to the first embodiment. FIG. 15 is an exploded perspective view from the rear showing a portion of the vise 40 according to the first embodiment. FIG. 16 is a view of a portion of the vise 40 according to the first embodiment as seen from above. FIG. 17 is a perspective view from the rear showing the elastic member 45 according to the first embodiment.

[0060] The fastener 43 has a lever 43A, a rod 43B, a hinge portion 43C, a ball 43D, and a coil spring 43E. The lever 43A is connected to the rod 43B via the hinge portion 43C. The rod 43B is threadedly connected to the mounting rod 44 and is rotatably supported on the vise base 41. An operator can turn the lever 43A. When the lever 43A is turned, the rod 43B rotates relative to the mounting rod 44. When the rod 43B rotates, it moves axially relative to the mounting rod 44. The ball 43D can fit into a recess provided on the surface of the rod 43B. The coil spring 43E is disposed inside the lever 43A. The coil spring 43E generates an elastic force that presses the ball 43D against the rod 43B.

[0061] The vise 40 has a holding member 48 that holds one end of the chain 42. The holding member 48 is disposed in the internal space of the vise base 41. The holding member 48 is connected to the lower end of the rod 43B. A groove 43F is provided in the lower end of the rod 43B. A portion of the holding member 48 is disposed inside the groove 43F, thereby connecting the holding member 48 to the lower end of the rod 43B.

[0062] The retaining member 48 has a peripheral wall portion 48A, a hook portion 48B, a notch portion 48C, and a hole 48D. The peripheral wall portion 48A surrounds one end of the chain 42. The hook portion 48B is connected to the upper end of the peripheral wall portion 48A. The hook portion 48B is positioned inside the groove portion 43F. The notch portion 48C is cut out upward from the lower end of the peripheral wall portion 48A. The chain 42 can fit inside the notch portion 48C. The notch portion 48C prevents the movement of the chain 42 from being hindered by the retaining member 48. A pin at one end of the chain 42 is inserted into the hole 48D. By inserting the pin at one end of the chain 42 into the hole 48D, one end of the chain 42 is retained by the retaining member 48.

[0063] The vise base 41 has an insertion space 41M into which a portion of the chain 42 is inserted. The vise base 41 has a left wall portion 41L and a right wall portion 41R facing the left wall portion 41L with a gap between them. The left wall portion 41L and the right wall portion 41R are each provided at the rear of the vise base 41. The right wall portion 41R is located to the right of the left wall portion 41L. The insertion space 41M is provided between the left wall portion 41L and the right wall portion 41R.

[0064] When winding the chain 42 around a workpiece, one end of the chain 42 is held by the holding member 48, and the pin 42A at the middle of the chain 42 is inserted into the insertion space 41M. The insertion space 41M is provided with a recess 41A into which the pin 42A is hooked. A pair of recesses 41A are provided. One recess 41A is provided in the lower part of the left wall portion 41L. The other recess 41A is provided in the lower part of the right wall portion 41R. The left end of the pin 42A inserted into the insertion space 41M is hooked into the left recess 41A. The right end of the pin 42A inserted into the insertion space 41M is hooked into the right recess 41A. With the left and right ends of the pin 42A hooked into the pair of recesses 41A, the lever 43A is turned, and the chain 42 is pulled by the holding member 48, and the workpiece is fastened by the chain 42. The workpiece is fastened by the chain 42, thereby fixing the vise 40 to the workpiece.

[0065] A pair of elastic members 45 are provided. The pair of elastic members 45 are attached to the vise base 41. The pair of elastic members 45 are arranged in the insertion opening 41N of the insertion space 41M. The insertion opening 41N of the insertion space 41M is provided at the upper end of the insertion space 41M. At least a portion of the pair of elastic members 45 is arranged at the upper end of the insertion space 41M.

[0066] One elastic member 45 is supported by the left wall portion 41L, and the other elastic member 45 is supported by the right wall portion 41R.

[0067] 17, the elastic member 45 has a first portion 451 that is long in the vertical direction, a second portion 452 that is shorter in the vertical direction than the first portion 451, and a folded portion 453 that connects the upper end of the first portion 451 and the upper end of the second portion 452.

[0068] The first portion 451 is fixed to the vise base 41. The second portion 452 is disposed at a position closer to the center of the insertion space 41M than the first portion 451. The second portion 452 is disposed at a position closer to the chain 42 than the first portion 451. In the left elastic member 45, the second portion 452 is disposed to the right of the first portion 451. In the right elastic member 45, the second portion 452 is disposed to the left of the first portion 451.

[0069] The center of the second portion 452 in the up-down direction protrudes toward the center of the insertion space 41M. The center of the second portion 452 protrudes toward the chain 42. The center of the second portion 452 of the left elastic member 45 protrudes toward the right. The center of the second portion 452 of the right elastic member 45 protrudes toward the left.

[0070] The support plate 46 supports the first portion 451 from outside the insertion space 41M. In the vertical direction, the length of the support plate 46 is shorter than the length of the first portion 451. The upper end of the support plate 46 is located below the folded-back portion 453.

[0071] The left support plate 46 is disposed so as to contact the left surface of the first portion 451 of the left elastic member 45. The right support plate 46 is disposed so as to contact the right surface of the first portion 451 of the right elastic member 45.

[0072] The screws 47 secure the support plate 46 and the first portion 451 to the vise base 41. An opening 46A is provided in the lower part of the support plate 46. An opening 45A is provided in the lower part of the first portion 451. The screws 47 are inserted into the openings 46A and 45A and then coupled to the screw holes 41B provided in the vise base 41. The left support plate 46 and the left elastic member 45 are secured to the left surface of the left wall portion 41L by the left screw 47. The right support plate 46 and the right elastic member 45 are secured to the right surface of the right wall portion 41R by the right screw 47.

[0073] The second portion 452 is disposed above the recessed portion 41A. The second portion 452 is disposed so as to cover the recessed portion 41A. The second portion 452 of the left elastic member 45 is disposed so as to cover the left recessed portion 41A. The second portion 452 of the right elastic member 45 is disposed so as to cover the right recessed portion 41A.

[0074] The distance Lm between the pair of elastic members 45 is shorter than the length Lp of the pin 42A that is hooked into the recess 41A. As shown in Fig. 14, the length Lp of the pin 42A is the dimension of the pin 42A in the left-right direction. In the left-right direction, the distance Lm between the left elastic member 45 and the right elastic member 45 is shorter than the length Lp of the pin 42A.

[0075] 16, the distance Lm between the pair of elastic members 45 is the distance between the pair of second portions 452. The distance Lm between the pair of elastic members 45 is the distance between the second portion 452 of the left elastic member 45 and the second portion 452 of the right elastic member 45. The distance Lm between the pair of second portions 452 is shorter than the length Lp of the pin 42A hooked into the recess 41A.

[0076] 18 is a right-side view of a portion of the chain 42 immediately before being inserted into the insertion space 41M according to the first embodiment. The pin 42A in the middle of the chain 42 is inserted into the insertion space 41M from above the insertion space 41M.

[0077] When the pin 42A of the chain 42 is inserted into the insertion space 41M to be hooked into the recess 41A, the pin 42A passes between the pair of second portions 452 arranged at the insertion opening 41N of the insertion space 41M. Because the distance Lm between the pair of second portions 452 is shorter than the length Lp of the pin 42A of the chain 42, when the pin 42A passes between the pair of second portions 452, the pair of elastic members 45 elastically deform so that the pair of second portions 452 are separated from each other. Because the pair of elastic members 45 elastically deform so that the pair of second portions 452 are separated from each other, the pin 42A is smoothly inserted into the insertion space 41M.

[0078] After the pin 42A is inserted into the insertion space 41M and hooked into the recessed portion 41A, the pair of elastic members 45 restore their positions so that the pair of second portions 452 approach each other. Because the distance Lm between the second portions 452 of the pair of elastic members 45 is shorter than the length Lp of the pin 42A of the chain 42, the pin 42A after hooked into the recessed portion 41A is covered by the second portions 452. Because the pin 42A is covered by the second portions 452, the pin 42A after hooked into the recessed portion 41A is prevented from falling out of the vise base 41. In other words, because the pin 42A is covered by the second portions 452, the pin 42A hooked into the recessed portion 41A is prevented from falling out. Because the pin 42A is covered by the second portions 452, even if the pin 42A tries to escape from the insertion space 41M, the pin 42A is caught by the second portions 452, and therefore the pin 42A is prevented from escaping from the insertion space 41M. Since the pin 42A of the chain 42 is prevented from falling off the vise base 41, a decrease in workability when fixing the vise 40 to the workpiece is prevented.

[0079] The second portion 452 functions as a countersink, which effectively prevents the pin 42A from falling off the vise base 41 after being hooked into the recess 41A.

[0080] When removing the pin 42A from the vise base 41, the pin 42A is pulled out from the insertion space 41M in a state in which the pair of elastic members 45 are elastically deformed so that the pair of second portions 452 are separated from each other. The operation of the lever 43A when removing the pin 42A from the vise base 41 can be minimized. Similarly, the operation amount of the lever 43A when attaching the pin 42A to the vise base 41 can also be minimized.

[0081] <Shoo> Fig. 19 is a perspective view showing the front part of the reciprocating saw 1 according to the first embodiment. Fig. 20 is a perspective view showing the fixing structure between the slider 11 and the blade 200 according to the first embodiment. Fig. 21 is a view of the front part of the reciprocating saw 1 according to the first embodiment as seen from below.

[0082] The shoe 12 is disposed at the front end of the front housing 4. The shoe 12 has a blade opening 12C in which the blade 200 is disposed. The shoe 12 is attached to the front housing 4 so as to cover an opening 4C (see FIGS. 22 and 23) provided on the front surface of the front housing 4.

[0083] The shoe 12 has a front plate portion 12A facing the front surface of the front housing 4, and a lower plate portion 12B facing the front portion of the lower surface of the front housing 4. The blade opening 12C is provided in the front plate portion 12A.

[0084] The shoe 12 is fixed to the front housing 4 with a screw 50. An elongated hole 12D is formed in the lower plate portion 12B. The screw 50 is inserted into the elongated hole 12D. A threaded hole 4B is formed in the underside of the front housing 4. The screw 50 is engaged with the threaded hole 4B formed in the underside of the front housing 4 via the elongated hole 12D. With the front plate portion 12A close to or in contact with the front surface of the front housing 4, the screw 50 is engaged with the threaded hole 4B via the elongated hole 12D, thereby fixing the shoe 12 to the front housing 4.

[0085] 21, the elongated hole 12D is provided on the left side of the center of the lower plate portion 12B in the left-right direction.

[0086] When the shoe 12 is fixed to the front housing 4 by the screw 50 with the front plate portion 12A approaching or in contact with the front surface of the front housing 4, the screw 50 is disposed in front of the elongated hole 12D rather than the center of the elongated hole 12D. The screw 50 may come into contact with the front end of the inner surface of the elongated hole 12D.

[0087] 19 and 20, the slider 11 and the blade 200 are fixed via a blade clamp 51. The rear end of the blade 200 is sandwiched between the front end of the slider 11 and the blade clamp 51. The slider 11, the blade 200, and the blade clamp 51 are fixed together with a screw 52. The screw 52 is inserted into a screw hole 11B (see FIG. 6) of the slider 11 through an opening provided in the blade clamp 51 and an opening provided in the rear end of the blade 200. The blade clamp 51 also has a pin portion 51A that is inserted into an opening 11C (see FIG. 6) of the slider 11.

[0088] An opening 4A is provided in the right part of the front part of the front housing 4. The head of the screw 52 is disposed on the right side of the blade clamp 51. The head of the screw 52 faces the opening 4A. An operator can insert a tool into a drive portion (hole) provided in the head of the screw 52 through the opening 4A to rotate the screw 52. In other words, the operator can tighten or loosen the screw 52 by rotating the screw 52 through the opening 4A.

[0089] In this embodiment, the reciprocating saw 1 has a tool holder 36 that holds a tool 35 for rotating the screws 50 and 52. As shown in FIG. 5, the tool holder 36 is provided at the bottom of the connecting portion 24. The tool holder 36 has a first holder portion 36A that holds a portion of the tool 35 and a second holder portion 36B that holds another portion of the tool 35. The second holder portion 36B is disposed in front of the first holder portion 36A.

[0090] <How to replace the blade clamp> 22 and 23 are diagrams illustrating a method for replacing the blade clamp 51 according to the first embodiment. For example, if the blade clamp 51 is damaged, in order to replace the blade clamp 51, an operator loosens the screw 52 through the opening 4A to release the blade clamp 51 from being fixed by the screw 52. After the screw 52 is removed from the blade clamp 51, the blade clamp 51 is carried out to the outside of the front housing 4 through an opening 4C provided in the front surface of the front housing 4.

[0091] In the embodiment, while the shoe 12 is attached to the front housing 4, it can be retracted from the front surface of the front housing 4 so that the opening 4C is exposed. The shoe 12 is rotatably attached to the front housing 4. The shoe 12 can be retracted from the front surface of the front housing 4 by rotating.

[0092] 22, when the blade clamp 51 is to be carried out of the front housing 4, the worker loosens the screw 50. Although the screw 50 is loosened, it is not removed from the screw hole 4B. Although the screw 50 is loosened, the screw 50 remains inserted in the elongated hole 12D and the screw hole 4B.

[0093] By loosening the screw 50, the shoe 12 can be moved forward so as to move away from the front surface of the front housing 4. By loosening the screw 50, the operator can move the shoe 12 forward so that the front plate portion 12A moves away from the front surface of the front housing 4. With the screw 50 inserted into the elongated hole 12D and the screw hole 4B, the shoe 12 is moved forward so as to move away from the front surface of the front housing 4. Because the screw 50 is disposed in the elongated hole 12D, the shoe 12 moves forward while being guided by the screw 50.

[0094] As the shoe 12 moves forward, the screw 50 is positioned at the rear of the elongated hole 12D rather than at the center of the elongated hole 12D. The screw 50 may come into contact with the rear end of the inner surface of the elongated hole 12D.

[0095] The shoe 12 is rotatably attached to the front housing 4 by a screw 50 so that it can change from facing the front surface of the front housing 4 to facing the left surface of the front housing 4. As shown in FIG. 23 , the shoe 12 moves forward so as to move away from the front surface of the front housing 4, and then is rotated to the left around the screw 50. The shoe 12 is rotated so that the front plate portion 12A faces the left surface of the front housing 4. By rotating around the screw 50, the shoe 12 can be retracted from the front surface of the front housing 4.

[0096] In this embodiment, the elongated hole 12D is provided to the left of the center of the lower plate portion 12B. Therefore, the operator can smoothly rotate the shoe 12 so that the front plate portion 12A faces the left surface of the front housing 4.

[0097] When the shoe 12 is rotated about the screw 50, the front plate portion 12A changes from facing the front surface of the front housing 4 to facing the side surface of the front housing 4. As shown in FIG. 23 , when the shoe 12 retracts from the front surface of the front housing 4, an opening 4C in the front housing 4 is exposed. An operator can carry the blade clamp 51 out of the front housing 4 through the opening 4C.

[0098] <Reciprocating saw operation> After the vise 40 is secured to the workpiece, the operator operates the trigger lever 14. Operating the trigger lever 14 drives the motor 8 with power supplied from the battery pack 13. When the rotor 16 rotates about the rotation axis AX, the pinion gear 26A provided at the front end of the rotor shaft 17 rotates. When the pinion gear 26A rotates, the bevel gear 26B coupled to the pinion gear 26A rotates. When the bevel gear 26B rotates, the eccentric pin 28 moves eccentrically with respect to the rotation axis BX of the bevel gear 26B, causing the slider 11 to reciprocate back and forth. When the slider 11 reciprocates back and forth, the blade 200 fixed to the slider 11 also reciprocates back and forth. While the blade 200 is reciprocating back and forth, the operator grasps the grip portion 21 and rotates the reciprocating saw 1 about the mounting rod 44. The operator holds the grip portion 21 and rotates the reciprocating saw 1 around the mounting rod 44 so that the grip portion 21 moves upward and the blade 200 moves downward. As a result, the reciprocating blade 200 is pushed into the workpiece, cutting the workpiece.

[0099] <Effects> As described above, in the embodiment, the vise 40 comprises a chain 42 having a pin 42A and wound around the workpiece, an insertion space 41M into which the pin 42A is inserted, a recess 41A provided in the insertion space 41M into which the pin 42A is hooked, a vise base 41 that abuts against the workpiece, a fastener 43 that is connected to the chain 42 and is operated to pull the chain 42 wound around the workpiece, and an elastic member 45 that prevents the pin 42A hooked in the recess 41A from falling off.

[0100] In the above configuration, after pin 42A of chain 42 is hooked in recess 41A, it is prevented from falling off from recess 41A by elastic member 45. Preventing pin 42A from falling off from recess 41A prevents pin 42A from falling off from vise base 41 after being hooked in recess 41A. Because pin 42A of chain 42 is prevented from falling off from vise base 41, a decrease in workability when fixing vise 40 to a workpiece is prevented.

[0101] In one or more embodiments, a pair of recesses 41A are provided in the insertion space 41M so that the left and right ends of the pin 42A can be hooked therein. The elastic member 45 includes a pair of leaf springs attached to the vise base 41. The pair of elastic members are disposed in the insertion opening 41N of the insertion space 41M. A distance Lm between the pair of elastic members 45 is shorter than a length Lp of the pin 42A.

[0102] In the above configuration, when the pin 42A of the chain 42 is inserted into the insertion space 41M to be hooked into the recess 41A, the pin 42A passes between the pair of elastic members 45 arranged at the insertion opening 41N of the insertion space 41M. Because the distance Lm between the pair of elastic members 45 is shorter than the length Lp of the pin 42A of the chain 42, when the pin 42A passes between the pair of elastic members 45, the pair of elastic members 45 elastically deform so as to move away from each other, allowing the pin 42A to be smoothly inserted into the insertion space 41M. After the pin 42A is inserted into the insertion space 41M and hooked into the recess 41A, the pair of elastic members 45 return to their original position so as to move closer to each other. Because the distance Lm between the pair of elastic members 45 is shorter than the length Lp of the pin 42A of the chain 42, the pin 42A is covered by the elastic member 45 after being hooked into the recess 41A. Because the pin 42A is covered with the elastic member 45, the pin 42A is prevented from falling off the vise base 41 after being caught in the recess 41A. Because the pin 42A of the chain 42 is prevented from falling off the vise base 41, a decrease in workability when fixing the vise 40 to the workpiece is prevented. Furthermore, when the pin 42A is to be caught in the recess 41A, the pin 42A is moved forward and inserted into the insertion space 41M.

[0103] In this embodiment, the vise base 41 has a left wall portion 41L and a right wall portion 41R facing the left wall portion 41L. The insertion space 41M is provided between the left wall portion 41L and the right wall portion 41R. The elastic member 45 is supported by each of the left wall portion 41L and the right wall portion 41R.

[0104] In the above configuration, the insertion space 41M is provided between the left wall portion 41L and the right wall portion 41R, and the elastic members 45 are supported by each of the left wall portion 41L and the right wall portion 41R, so that a pair of elastic members 45 are positioned at the insertion opening 41N of the insertion space 41M.

[0105] In the embodiment, the elastic member 45 has a first portion 451 fixed to the vise base 41, a second portion 452 disposed at a position closer to the center of the insertion space 41M than the first portion 451, and a folded portion 453 connecting the first portion 451 and the second portion 452. The distance between the pair of second portions 452 is shorter than the length of the pin 42A.

[0106] In the above configuration, the second portion 452 functions as a counterweight, and therefore the pin 42A is effectively prevented from falling off the vise base 41 after being hooked into the recess 41A.

[0107] In the embodiment, the second portion 452 is disposed so as to cover the recess 41A.

[0108] In the above configuration, the pin 42A is effectively prevented from falling off the vise base 41 after being caught in the recess 41A.

[0109] In this embodiment, the vise 40 includes a support plate 46 that supports the first portion 451 from outside the insertion space 41M, and screws 47 that fix the support plate 46 and the first portion 451 to the vise base 41, respectively.

[0110] In the above configuration, the first portion 451 is stably fixed to the vise base 41.

[0111] In this embodiment, the reciprocating saw 1 includes a motor 8, a reciprocating motion conversion mechanism 10 that is positioned forward of the motor 8 and that reciprocates the blade 200 based on the rotational force of the motor 8, and a vise mounting portion 6 that is positioned forward of the motor 8 and to which a vise 40 is attached.

[0112] With the above configuration, the deterioration of workability when fixing the vise 40 to the workpiece is suppressed, and therefore the deterioration of workability when using the reciprocating saw 1 is also suppressed.

[0113] [Second embodiment] A second embodiment will be described below. In the following description, the same or equivalent components as those in the above-described embodiment will be denoted by the same reference numerals, and the description of those components will be simplified or omitted.

[0114] 24, 25, 26, and 27 are cross-sectional views illustrating a method for fixing the vise 40 according to the second embodiment to a workpiece 100. The workpiece is a pipe such as a steel pipe.

[0115] As shown in Fig. 24, one end of chain 42 is held by holding member 48. As shown in Fig. 24, coil spring 49, which is an elastic member, is arranged around rod 43B. When cutting workpiece 100, the operator brings vise base 41 into contact with a part of workpiece 100 and wraps chain 42 around workpiece 100. The operator places pin 42A, which is to be hooked into recess 41A, against the rear surface of vise base 41.

[0116] 25, the worker manually pulls the middle portion of the chain 42 upward, and then moves the pin 42A forward so that the pin 42A is inserted into the insertion space 41M. As the middle portion of the chain 42 is pulled upward, the holding member 48 moves downward. As the holding member 48 moves downward, the coil spring 49 compresses.

[0117] As shown in Figure 26, the worker inserts pin 42A into insertion space 41M and hooks it into recess 41A. Coil spring 49 generates an elastic force that pulls chain 42. When pin 42A is hooked into recess 41A, the middle portion of chain 42 moves slightly downward, and therefore holding member 48 moves upward due to the restoring force (elastic force) of coil spring 49. The elastic force of coil spring 49 presses pin 42A hooked into recess 41A against the inner surface of recess 41A.

[0118] As shown in FIG. 27 , after the pin 42A is hooked into the recess 41A, the operator turns the lever 43A so that the workpiece 100 is clamped by the chain 42. The operator turns the lever 43A so that the holding member 48 moves upward. As the lever 43A is turned, the rod 43B rotates. A screw thread is formed on the outer circumferential surface of the rod 43B, and a screw groove that engages with the screw thread of the rod 43B is provided in the mounting rod 44. As the rod 43B rotates, the rod 43B moves upward. As the rod 43B moves upward, the holding member 48 moves upward. As the holding member 48 moves upward, one end of the chain 42 is pulled upward, and the workpiece 100 is clamped by the chain 42. As the workpiece is clamped by the chain 42, the vise 40 is fixed to the workpiece 100.

[0119] As described above, in the embodiment, fastener 43 has rod 43B connected to lever 43A via a hinge portion, and retaining member 48 connected to the lower end of rod 43B and holding one end of chain 42 wound around the workpiece. Coil spring 49 is disposed around rod 43B. Coil spring 49 is disposed inside retaining member 48 and contacts retaining member 48. Coil spring 49 generates an elastic force such that pin 42A hooked in recess 41A is pressed against the inner surface of recess 41A.

[0120] In the above configuration, the chain 42 is pulled by the coil spring 49 so that the pin 42A is pressed against the inner surface of the recess 41A, which prevents the pin 42A from falling off the vise base 41 after it has been hooked into the recess 41A. Since the pin 42A of the chain 42 is prevented from falling off the vise base 41, a decrease in workability when fixing the vise 40 to the workpiece is prevented. Furthermore, since the chain 42 is pulled by the coil spring 49 so as to fasten the workpiece after the pin 42A is hooked into the recess 41A, the chain 42 is prevented from loosening.

[0121] In this embodiment, the lever 43A is rotated so that the workpiece is fastened by the chain 42 while the pin 42A is hooked in the recess 41A.

[0122] In the above configuration, the chain 42 is fixed to the workpiece by the elastic force of the coil spring 49, so the chain will not fall off and the operator can easily tighten the chain 42 around the workpiece by turning the lever 43A.

[0123] [Third embodiment] A third embodiment will be described below. In the following description, the same or equivalent components as those in the above-described embodiment will be denoted by the same reference numerals, and the description of those components will be simplified or omitted.

[0124] FIG. 28 is a diagram schematically illustrating a portion of a vise 140 according to a third embodiment. In the above-described embodiment, the distance Lm between the pair of elastic members 45 is the distance between the second portion 452 of the left elastic member 45 and the second portion 452 of the right elastic member 45. As shown in FIG. 28, a gate member 70 including an elastic member 45 and a claw member 71 may be attached to the vise base 41. The claw member 71 is attached to the tip of the elastic member 45. At least a portion of the gate member 70 is elastically deformable. The pair of gate members 70 are disposed in the insertion opening 41N of the insertion space 41M. The distance Lt between the pair of gate members 70 is shorter than the length Lp of the pin 42A. The distance Lt is the distance between the claw member 71 attached to the left elastic member 45 and the claw member 71 attached to the right elastic member 45. [Explanation of symbols]

[0125] 1...Reciprocating saw, 2...Rear housing, 2L...Left housing, 2R...Right housing, 2S...Screw, 3...Cover, 4...Front housing, 4A...Opening, 4B...Screw hole, 4C...Opening, 5...Battery mounting section, 6...Vise mounting section, 7...Controller, 8...Motor, 9...Fan, 10...Reciprocating motion conversion mechanism, 11...Slider, 11A...Slider block, 11B...Screw hole, 11C...Opening, 12...Shoe, 12A...Front plate, 12B...Lower plate, 12C...Blade opening, 12D...Elongated hole, 13...Battery pack 14...trigger lever, 15...stator, 16...rotor, 17...rotor shaft, 18...motor case, 19...gear case, 20A...bearing, 20B...bearing, 21...grip portion, 22...accommodation portion, 23...battery holding portion, 24...connection portion, 25...guard portion, 26A...pinion gear, 26B...bevel gear, 27...support shaft, 28...eccentric pin, 29A...bearing, 29B...bearing, 31...slider guide, 32...slider guide, 33...intake port, 34...filter unit , 34A...filter, 34B...filter holder, 35...tool, 36...tool holder, 36A...first holder portion, 36B...second holder portion, 40...vise, 41...vise base, 41A...recess, 41B...screw hole, 41L...left wall portion, 41M...insertion space, 41N...insertion port, 41R...right wall portion, 42...chain, 42A...pin, 43...fastener, 43A...lever, 43B...rod, 43C...hinge portion, 43D...ball, 43E...coil spring, 43F...groove portion, 44...mounting rod, 45...elastic member, 45A...opening, 451...first part, 452...second part, 453...folded part, 46...support plate, 46A...opening, 47...screw, 48...retaining member, 48A...peripheral wall part, 48B...hook part, 48C...notch part, 48D...hole, 49...coil spring, 50...screw, 51...blade clamp, 51A...pin part, 52...screw, 60...exhaust port, 70...gate member, 71...jaw member, 100...workpiece, 140...vice, 200...blade, AX...rotation axis, BX...rotation axis, Lm...distance, Lp...length.

Claims

1. A vise attached to a reciprocating saw, a chain having a pin and wound around a workpiece; a vise base that has an insertion space into which the pin is inserted and a recess that is provided in the insertion space and into which the pin is hooked, and that is brought into contact with a workpiece; a fastener connected to the chain and operated to pull the chain wound around the workpiece; an elastic member that prevents the pin hooked in the recess from falling off, Vice.

2. a pair of recesses are provided in the insertion space so that the left end and the right end of the pin can be hooked thereon, the elastic member includes a pair of leaf springs attached to the vise base; The pair of elastic members are disposed at the insertion opening of the insertion space, The distance between the pair of elastic members is shorter than the length of the pin. The vise of claim 1 .

3. the vise base has a left wall portion and a right wall portion facing the left wall portion, The insertion space is provided between the left wall portion and the right wall portion, the elastic member is supported by each of the left wall portion and the right wall portion; The vise of claim 2.

4. The elastic member is a first portion fixed to the vise base; a second portion disposed closer to the chain than the first portion; a folded portion connecting the first portion and the second portion, The distance between the pair of second portions is shorter than the length of the pin. The vise according to claim 3.

5. The second portion is disposed to cover the recess. The vise according to claim 4.

6. a support plate that supports the first portion from outside the insertion space; a screw for fastening each of the support plate and the first portion to the vise base; The vise according to claim 4.

7. the fastening tool has a rod connected to a lever via a hinge portion, and a holding member connected to a lower end of the rod and holding one end of the chain wound around the workpiece, The elastic member includes a coil spring that is disposed around the rod and generates an elastic force such that the pin hooked in the recess is pressed against the inner surface of the recess. The vise of claim 1 .

8. The lever is rotated so that the workpiece is fastened by the chain with the pin hooked in the recess. The vise of claim 7.

9. A vise attached to a reciprocating saw, a vise base that is brought into contact with the workpiece; a chain supported by the vise base and wound around the workpiece; a fastener connected to the chain and operated to pull the chain wound around the workpiece; a pair of gate members attached to the vise base, at least a portion of which is elastically deformable; the vise base is provided in an insertion space into which the pin of the chain is inserted, and has a pair of recesses into which the left and right ends of the pin are hooked, respectively; The pair of gate members are disposed at the insertion opening of the insertion space, The distance between the pair of gate members is shorter than the length of the pin. Vice.

10. A motor; a reciprocating motion converting mechanism that is disposed forward of the motor and that reciprocates the blade based on the rotational force of the motor; a vise mounting portion disposed forward of the motor and on which the vise according to claim 1 is mounted, Reciprocating saw.

11. A battery mounting section is provided to mount the battery pack.

11. The reciprocating saw of claim 10.

Images