JP2010264532A - Side handle for power tool and power tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side handle for a power tool, improving durability of an engagement part of a stopper pole and a lock member, reducing accidental movement of the lock member, and enhancing the reliability of the engagement state of the stopper pole and the engagement part, and also to provide a power tool mounted with the side handle for the power tool. <P>SOLUTION: The side handle 40 for the power tool includes a holding part 41 and a gripping part 47. A through-hole H through which the stopper pole passes in parallel with a bit is formed in the holding part. The lock member 43 including the engagement part 43B engaging with a part to be engaged formed on the side surface of the stopper pole is stored in the side handle 40 for the power tool while it is slidingly operable between an engagement position P1 and a separation position P2, and it is energized to the engagement position by an energizing means 44. The lock member is arranged to make a sliding direction parallel with the protruding direction of the gripping part and to allow the engagement position P1 to be on the gripping part side and the separation position P2 to be on the holding part side. At least the engagement part 43B of the lock member is made of metal. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a power tool side handle having a metal stopper pole that is mounted on a power tool body and restricts a processing depth by the power tool, and a power tool equipped with the power tool side handle.

  For example, as disclosed in Patent Document 1, a power tool to which a bit is attached is provided with a side handle having a grip portion gripped by an operator in order to improve operability and safety. A stopper pole as a device for limiting the processing depth by the bit is fixed to the side handle by urging and engaging a push button with an engaged portion formed on the side surface. That is, by limiting the advance of the bit using the stopper pole, the processing depth to the workpiece can be made constant.

  Also, when moving the stopper pole in the axial direction in order to adjust the depth of drilling in the workpiece, by pushing the push button toward the tool body in the direction perpendicular to the grip part, Release the engagement between the stopper pole and the push button.

US Pat. No. 6,609,860

  However, in some power tools, there is a resin-made engaging portion that engages a lock member, which is an example of the above-described push button, and a metal stopper pole. In such a case, it is conceivable that the strength of the engaging portion is lowered due to aging of the resin. As a result, there is a concern that the durability of the engaging portion is inferior.

  Furthermore, as disclosed in Patent Document 1, when the engagement between the stopper pole and the lock member is released by pushing the lock member into the tool body in the direction orthogonal to the grip portion, If the lock member is accidentally pushed in when the tool is placed on the floor or the like, there is a concern that the stopper pole will be disengaged and the stopper pole will move. It was.

  The present invention has been proposed in view of such circumstances, and can improve the durability of the engaging portion between the stopper pole and the lock member, and reduce the accidental movement of the lock member. An object of the present invention is to provide a power tool side handle capable of enhancing the reliability of the engagement state between the stopper pole and the engaging portion, and a power tool equipped with the power tool side handle.

  A side handle for an electric tool according to a first aspect of the present invention includes a gripping portion that clamps a cylindrical front end portion of an electric tool to which a bit is attached toward the front, and the cylindrical front end portion that is connected to the gripping portion. A grip portion that protrudes perpendicularly to the axis of the stopper, and a through-hole through which the stopper pole can pass in parallel to the bit is formed in the grip portion, and an engaged portion formed on a side surface of the stopper pole The locking member having the engaging portion is slid between an engaging position where the engaged portion and the engaging portion are engaged and a separated position where the engaging portion is separated from the engaged portion. An electric tool side handle that is operable and accommodated in a biased state to the engagement position by a biasing means, wherein the lock member has a sliding direction parallel to a protruding direction of the grip portion and the engagement. The position is in contact with the grip Grip portion which, while the separated position is provided so that the grip portion side approaching the gripper, characterized in that at least the engagement portion of the locking member is made of metal.

  The invention of claim 2 is characterized in that, in claim 1, a flange is provided around an end portion of the grip portion on the grip portion side, and the lock member is adjacent to the flange at the engagement position. To do.

  According to a third aspect of the present invention, in the first or second aspect, the lock member is opposed to a surface on which the engagement portion is formed with the stopper pole penetrating through the through-hole interposed therebetween. Along with this, a guide surface is formed in which the side surface of the stopper pole opposite to the side where the engaged portion is formed is in sliding contact.

  A fourth aspect of the present invention provides the coil spring according to any one of the first to third aspects, wherein the biasing means is disposed at a position where the axis of the biasing means intersects perpendicularly with the axis of the stopper pole passing through the through hole. It is characterized by that.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the grip portion is formed with a communication path that allows the accommodating portion of the lock member to communicate with the outside.

  A power tool according to a sixth aspect of the invention is characterized in that the side handle for a power tool according to any one of the first to fifth aspects is attached to a cylindrical front end portion to which a bit is attached toward the front. .

According to the side handle for the electric tool according to the invention of claim 1 and the electric tool according to the invention of claim 6, the engaging portion of the lock member that engages the engaged portion of the stopper pole is made of metal. The strength of the metal engaging portion can be increased compared to the metal engaging portion. Thereby, the durability of the engaging portion can be improved.
Furthermore, since the lock member is slid parallel to the protruding direction of the grip portion so that it can be slid between the engagement position and the separation position, accidental accidental accidents occur when the power tool is placed on the floor or the like. Even if the lock member is pushed in the direction orthogonal to the grip portion, the lock member does not slide toward the separation position. Thereby, it is possible to reduce the accidental movement of the lock member to the separated position and to improve the reliability of the engaged state between the stopper pole and the engaging portion.
According to the invention of claim 2, since the lock member is adjacent to the flange provided around the end of the grip portion on the grip portion at the engagement position, the operator holds the grip portion, The lock member can be easily operated. Thereby, the operability when the operator slides the lock member can be improved.
According to the invention of claim 3, since the side surface of the stopper pole opposite to the formation side of the engaged portion can be brought into sliding contact with the guide surface formed on the lock member, when the lock member is slid Can smoothly slide the lock member along the opposite side surface of the stopper pole via the guide surface.
In addition, along with the smooth sliding of the locking member along the opposite side surface, the side surface on the formation side of the engaged portion of the stopper pole is also slid in a state where it can be easily engaged with the engaging portion. be able to. Thereby, rattling can be prevented from occurring in the engagement between the stopper pole and the engaging portion.
According to the invention of claim 4, since the coil spring is disposed as a biasing means at a position where its axis intersects perpendicularly with the axis of the stopper pole, the coil spring biases the lock member to the engagement position. Slide smoothly without tilting. Thereby, it can prevent that a locking member twists a stopper pole.
According to the fifth aspect of the present invention, the foreign matter that has entered the housing portion is discharged to the outside by the communication passage that allows the housing portion of the lock member to communicate with the outside, and the state where the foreign matter has entered the housing portion is avoided. be able to. Accordingly, foreign matter is prevented from being caught in the coil spring, and foreign matter is prevented from adhering to the lock member. Accordingly, it is possible to prevent the coil spring from expanding and contracting due to the foreign matter being caught in the coil spring and to prevent the lock member from smoothly moving due to the foreign matter adhering to the lock member. Can be suppressed.

It is a side view of the hammer drill which attached the side handle of Embodiment 1 of the present invention. It is a perspective view of the side handle. It is sectional drawing of the side handle. It is a side view of the hammer drill which attached the side handle of Embodiment 2. It is a perspective view of the side handle. It is front sectional drawing of the side handle. (A) The figure is the principal part longitudinal cross-sectional view of the side handle, (b) The figure is the principal part cross-sectional view of the side handle.

<Embodiment 1>
Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. The hammer drill 1 shown in FIG. 1 includes a main body housing 10, a drill chuck 20, a handle 30, and a side handle 40. The hammer drill 1 is an example of the electric tool of the present invention, and the side handle 40 is an example of the side handle for the electric tool of the present invention.

  The main body housing 10 incorporates a motor and a rotation transmission mechanism. The drill chuck 20 is provided so as to protrude from the front end portion 11 of the main body housing 10 to the front of the main body housing 10. The front end portion 11 of the main body housing 10 is formed in a cylindrical shape.

  The drill chuck 20 is attached to a tool holder (not shown) that protrudes forward from the main body housing 10. A drill bit 21 is detachably attached to the front surface of the drill chuck 20. The handle 30 extends from the rear end portion of the main body housing 10 to the lower side of the main body housing 10. Reference numeral 31 denotes a switch lever.

  As shown in FIGS. 2 and 3, the side handle 40 includes a grip 41 and a grip 47. The grip portion 41 includes a spring plate 42, a first lock member 43, and a coil spring 44. The spring plate 42 is made of metal and is formed in a ring shape. Engaging recesses are formed at both ends of the spring plate 42. The head B1 of the bolt B is engaged with the engaging recess. The screw part B <b> 2 of the bolt B is screwed into the grip part 47. Accordingly, the ring-shaped spring plate 42 is erected on the grip portion 47 via the bolt B. Both ends of the spring plate 42 and the head B1 of the bolt B are accommodated in the cover member 45. The side handle 40 is attached to the hammer drill 1 by fitting the ring-shaped space 42 </ b> A into the front end portion 11.

  A guide member 46 is integrally formed on the side of the cover member 45. A first lock member 43 is accommodated in the internal space 46 </ b> A of the guide member 46. The coil spring 44 is mounted between the inner wall surface of the internal space 46 </ b> A and the first lock member 43 in a slightly compressed state. As a result, the first lock member 43 is normally urged toward the grip portion 47 by the elastic force of the coil spring 44. Reference numeral 43 </ b> A is an operation unit of the first lock member 43. The coil spring 44 is an example of an urging unit of the present invention.

  A guide hole H penetrating the guide member 46 is formed on the surface above the guide member 46 and corresponding to the forward / backward direction of the hammer drill 1. The opening of the guide hole H has a hexagonal shape, and a stopper pole 2 (see FIG. 1) made of a metal rod-like member having a hexagonal cross section is moved in parallel with the drill bit 21 in the guide hole H. It can be penetrated freely. The guide hole H is an example of the through hole of the present invention.

  The first lock member 43 is formed with a metal engaging claw portion 43B and a stopper portion 43C. The coil spring 44 biases the first lock member 43 toward the grip portion 47 so that the rack 2B (see FIG. 1) formed over the entire length of the side surface of the stopper pole 2 and the engaging claw portion 43B. And the side surface 2A (see FIG. 1) of the stopper pole is pressed by the stopper portion 43C. In FIG. 1, in order to clarify that the rack 2 </ b> B is formed on the stopper pole 2, the rack 2 </ b> B is attached to the right side surface of the stopper pole 2 when the stopper pole 2 is viewed from the front end side of the drill bit 21. Although drawn, actually, the rack 2B is formed over the entire length of the left side surface of the stopper pole 2 when the stopper pole 2 is viewed from the front side of the drill bit 21. The metal engaging claw 43B is an example of the engaging portion of the present invention, and the rack 2B of the stopper pole 2 is an example of the engaged portion of the present invention.

  The grip portion 47 is provided with a disc-shaped flange 48 at the end where the grip portion 47 contacts the cover member 45 and the guide member 46. Thereby, the grip part 47 is connected from the holding part 41 (the cover member 45 and the guide member 46) through the flange 48. The grip portion 47 is provided with a plurality of protrusions 47A. As shown in FIG. 1, the grip portion 47 projects in a direction Y orthogonal to the axis of the front end portion 11.

  As shown in FIGS. 2 and 3, the first lock member 43 is adjacent to the flange 48 at a position P <b> 1 in which the first lock member 43 is biased toward the grip portion 47 by the coil spring 44. At this time, the operation portion 43 </ b> A of the first lock member 43 is disposed at the substantially same protruding position as the outer peripheral surface in the radial direction of the flange 48. When the first lock member 43 is adjacent to the flange 48, the operator of the hammer drill 1 can easily operate the operation portion 43A with a finger while holding the grip portion 47. The position P1 is an example of the engagement position of the present invention.

  Next, an example in which the operator slides the first lock member 43 to adjust the position where the stopper pole 2 is locked will be described. As described above, the first lock member 43 is normally disposed at the position P <b> 1 by the elastic force of the coil spring 44. The operator puts his / her finger on the operation portion 43A, resists the elastic force, and is positioned P2 above the grip portion 41 (in the direction of the arrows in FIGS. 1 and 2) along the inner wall surface of the internal space portion 46A. The first lock member 43 is slid toward. Thereby, the engaging claw portion 43B and the stopper portion 43C are retracted upward in the internal space portion 46A, and the stopper pole 2 can be inserted into the guide hole H. The direction in which the operation unit 43A is slid is parallel to the direction Y (see FIG. 1) perpendicular to the axis of the front end 11.

  Subsequently, the operator adjusts the tip end position of the stopper pole 2 by inserting the stopper pole 2 through the guide hole H as shown in FIG. . After the adjustment of the tip position of the stopper pole 2 is completed, when the operator releases his / her finger from the operation portion 43A, the first locking member 43 is urged toward the position P1 by the elastic force and engaged. The claw portion 43B engages with the rack 2B, and the side surface 2A (see FIG. 1) is pressed by the stopper portion 43C. Thus, the stopper pole 2 is prevented from being locked and coming out of the guide hole H after adjusting the tip position of the stopper pole 2 to a predetermined position.

  After the stopper pole 2 is locked, when the operator adjusts the tip position of the stopper pole 2 again, the first lock member 43 is slid toward the position P2 as described above. As a result, the engaging claw portion 43B and the stopper portion 43C are separated from the rack 2B and the side surface 2A, respectively, so that the stopper pole 2 is moved back and forth in the axial direction of the front end portion 11 so that the tip position of the stopper pole 2 is appropriately adjusted. Can be adjusted. Thereafter, the engaging pawl 43B is engaged with the rack 2B as described above, and the stopper pole 2 is locked by pressing the side surface 2A with the stopper 43C. The position P2 is an example of a separation position according to the present invention.

<Effect of Embodiment 1>
In the hammer drill 1 of the present embodiment, since the engaging claw portion 43B that engages with the rack 2B of the stopper pole 2 is made of metal, it is made of metal compared to the case where the engaging claw portion 43B is formed of resin. The strength of the claw portion 43B can be increased. Thereby, durability of the engaging claw part 43B can be improved.
Furthermore, the first lock member 43 can be slid in parallel with the direction Y orthogonal to the axis of the front end portion 11, and the first lock member 43 can be slid between the position P1 and the position P2. For this reason, when the hammer drill 1 is placed on the floor or the like, even if the first lock member 43 is accidentally pushed in the direction orthogonal to the grip portion 47, the first lock member 43 is moved to the position P2. It does not slide toward you. Thereby, it is possible to reduce the accidental movement of the first lock member 43 to the position P2, and it is possible to increase the reliability of the engagement state between the stopper pole 2 and the engagement claw portion 43B.

  As described above, since the first lock member 43 is adjacent to the flange 48 at the position P1, the operator of the hammer drill 1 holds the operation portion 43A of the first lock member 43 while holding the grip portion 47. It can be made easy to operate with a finger. Thereby, the operability when the operator slides the first lock member 43 toward the position P2 can be improved.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIGS. Here, the same configurations as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. A hammer drill 1B shown in FIG. 4 includes a handle 30B and a side handle 40B. The handle 30 </ b> B is formed in a U shape and is provided integrally with the main body housing 10 at the rear end portion of the main body housing 10.

  As shown in FIGS. 5 and 6, the side handle 40 </ b> B includes a grip 51 and a grip 57. In the present embodiment, instead of the first lock member 43 of the first embodiment, the grip portion 51 includes a second lock member 49. The second lock member 49 is configured by vertically stacking a metal upper slide member 49A and a resin lower slide member 49B. In the grip portion 51, both ends of the spring plate 42 are bent and overlapped, and then a bolt locking hole H2 is formed in the overlapped portion. After the threaded portion B4 of the bolt B3 is inserted into the bolt locking hole H2, the head B5 of the bolt B3 is locked with the elastic member 43E interposed therebetween. The screw part B4 is locked to the grip part 57 by a nut N screwed into the screw part B4. Also in the present embodiment, by fitting the ring-shaped space 42A into the front end portion 11, the side handle 40B is mounted on the hammer drill 1B as shown in FIG.

  A guide member 46B protrudes from the side of the cover member 45 at a position away from the flange 48 upward. A second lock member 49 is accommodated in the internal space 46C of the guide member 46B. The coil spring 44 is mounted between the inner wall surface of the internal space portion 46C and the upper side of the upper slide member 49A (second lock member 49) in a slightly compressed state. Normally, the second lock member 49 is biased toward the grip portion 57 by the elastic force of the coil spring 44. Reference numeral 49 </ b> D is an operation portion of the second lock member 49. Further, a guide hole H similar to that of the first embodiment is formed in a surface near the center of the guide member 46B and corresponding to the forward / backward direction of the hammer drill 1B.

  As can be understood from FIG. 6, the second lock member 49 has a hollow portion 49 </ b> E that does not interfere with the guide hole H regardless of its vertical position. The stopper pole 2 enters the cavity 49E through the guide hole H.

  In the upper slide member 49A, a metal engagement recess 49F is formed on the left inner wall of the inverted U-shaped inner wall straddling the guide hole H. In addition, as shown in FIGS. 7A and 7B, a rack 2C is formed on the stopper pole 2 on the first side surface facing the engaging recess 49F (see FIG. 6). ing. When the second lock member 49 is biased to the position P1 by the elastic force of the coil spring 44, the rack 2C and the engagement recess 49F are engaged as shown in FIGS. 6 and 7B. To do. In addition, when the second lock member 49 is biased to the position P1, as shown in FIG. 7A, the protrusion T provided in the planar direction of the lower slide member 49B is provided with the guide member 46B. Is engaged with a long hole H3 provided in the vertical direction. The lower slide member 49B is slidable in the vertical direction within a range in which the protrusion T can move in the vertical direction within the elongated hole H3.

  On the other hand, on the upper slide member 49A, the right inner wall 49G (see FIG. 7B) is located opposite the left inner wall with the stopper pole 2 interposed therebetween. Unlike the first side surface, the rack 2C is not formed on the second side surface of the stopper pole 2 (see FIG. 7B). The engagement recess 49F is an example of the engagement portion of the present invention, and the rack 2C is an example of the engaged portion of the present invention. The left inner wall of the upper slide member 49A is an example of a forming surface of the engaging portion of the present invention. The first side surface of the stopper pole 2 is an example of the side surface on the formation side of the engaged portion of the present invention, and the second side surface of the stopper pole 2 is the side surface on the formation side of the engaged portion of the present invention. Is an example of the opposite side.

  In this embodiment, as shown in FIGS. 6 and 7A, when the stopper pole 2 is locked in the guide hole H, the coil spring 44 has a central axis L1 whose central axis L1 is the central axis L2 of the stopper pole 2. It was arranged at a position that intersected perpendicularly.

  In addition, as shown in FIGS. 6 and 7A and 7B, the guide member 46B has a communication path 60 formed therein. The communication path 60 is connected to the outside of the guide member 46B from the opening of the internal space 46C, and extends below the guide member 46B along the inclined side surface of the cover member 45. The internal space 46C is a housing portion for the lock member of the present invention.

  In the present embodiment, the position where the stopper pole 2 is locked is adjusted as described below. The operator pushes up the operation unit 49D with his / her finger above the grip 51 (upward in the Y direction in FIG. 4), and the second operation is performed until the upper surface of the operation unit 49D comes into contact with the inner wall of the internal space 46C. The lock member 49 is slid and the second lock member 49 is disposed at the position P2. Thereby, the cavity 49E communicates with the guide hole H.

  Thereafter, the operator adjusts the tip position of the stopper pole 2 in the same manner as in the first embodiment while continuing to press the operation portion 49D with a finger and placing the second lock member 49 at the position P2. Subsequently, when the operator releases his / her finger from the operation unit 49D, the second lock member 49 is biased toward the position P1 by the coil spring 44. At this time, the coil spring 44 smoothly slides the second lock member 49 (upper slide member 49A) downward without tilting. The second lock member 49 is guided to the position P1 while its right inner wall 49G is in sliding contact with the second side surface of the stopper pole 2, and the left inner wall has its engaging recess 49F engaged with the rack 2C. Be guided to. By engaging the engaging recess 49F with the rack 2C, the stopper pole 2 is prevented from being locked and coming out of the guide hole H after adjusting the tip end position of the stopper pole 2 to a predetermined position. The right inner wall 49G is an example of the guide surface of the present invention.

  When the operator again adjusts the tip position of the stopper pole 2 after locking the stopper pole 2, the second lock member 49 is slid to the position P2 as described above, and the rack 2C is separated from the engaging recess 49F. At the same time, the cavity 49E is communicated with the guide hole H. Subsequently, after adjusting the tip position of the stopper pole 2 as in the first embodiment, the stopper recess 2 is engaged with the rack 2C as described above to lock the stopper pole 2.

  In addition, when drilling in concrete or the like with the drill bit 21, dust is generated, and this dust may enter the internal space 46C. Even in this case, dust is guided from the opening of the internal space 46C to the communication path 60 and discharged to the outside of the internal space 46C. The dust in the communication path 60 falls below the communication path 60 by its own weight and is discharged to the outside of the guide member 46B.

<Effect of Embodiment 2>
In the hammer drill 1B of the present embodiment, since the second side surface of the stopper pole 2 can be slidably contacted with the right inner wall 49G of the upper slide member 49A of the second lock member 49, the second lock member 49 is slid. The second lock member 49 can be smoothly slid along the second side surface via the right inner wall 49G.
In addition, as the second lock member 49 is smoothly slid along the second side surface, the rack 2C of the stopper pole 2 can also be slid in a state where it can be easily engaged with the engagement recess 49F. . Thereby, rattling can be prevented from occurring in the engagement between the stopper pole 2 and the engagement recess 49F.
In addition, since the stopper pole 2 is sandwiched and locked between the left side wall and the right side wall 49G, the locked state of the stopper pole 2 can be strengthened. Thereby, it is possible to prevent the stopper pole 2 from being rattling.

  Further, as described above, the coil spring 44 smoothly slides the second lock member 49 (upper slide member 49A) downward without tilting. For this reason, it is possible to prevent the second lock member 49 from twisting the stopper pole 2.

  Further, the dust that has entered the internal space portion 46C is discharged to the outside of the guide member 46B by the communication passage 60 that communicates the internal space portion 46C of the guide member 46B with the outside of the guide member 46B, and the dust is transferred to the internal space portion 46C. You can avoid the state that is stuck. Accordingly, dust is prevented from being caught in the coil spring 44 mounted in the internal space 46C, and dust is prevented from adhering to the second lock member 49. Therefore, it is possible to prevent the coil spring 44 from expanding and contracting due to the dust trapped in the coil spring 44 and to prevent the second lock member 49 from adhering to the second lock member 49. Can be prevented from being smoothly slid.

  The present invention is not limited to the embodiment described above, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. In Embodiment 1 described above, the example in which the engagement claw portion 43B is made of metal is shown. However, the present invention is not limited to this, and the entire first lock member 43 formed with the engagement claw portion 43B and the stopper portion 43C is made of metal. May be formed. In the second embodiment, the second lock member 49 is configured by vertically stacking the metal upper slide member 49A and the resin lower slide member 49B. However, the present invention is not limited to this, and the slide members 49A and 49B are integrated. The second lock member 49 may be formed by a metal slide member.

Further, in each of the above-described embodiments, the circular flange 48 is provided at the end of each grip portion 47, 57, but the shape of the flange 48 may be changed to an appropriate shape such as a square shape.
Further, unlike the above-described embodiments, the side handle is provided by changing the grips 47 and 57 to a cylindrical shape whose outer diameter is the same as the outer diameter of the flange 48 without providing the flange 48. May be formed. Thereby, it can prevent that the operation part 43A of the 1st lock member 43 protrudes outside from the outer periphery of a cylindrical grip part.
In addition, the above-described side handles 40 and 40B may be attached to an electric tool such as a drill other than the above-described hammer drills 1 and 1B.

  1, 1B · · Hammer drill, 2 · · Stopper pole, 2B, 2C · · Stopper pole rack, 11 · · Front end of the body housing, 21 · · Drill bit, 40, 40B · · Side handle, 41, 51 · .Grip part 43 ..First lock member 43 B ..engagement claw part 44 ..coil spring 46 C .. internal space part of guide member 47, 57 ..grip part 48. · Second lock member, 49F · · Engagement recess, 49G · · Right inner wall, 60 · · Communication passage, H · · Guide hole, L1 · · Coil spring center axis, L2 · · · Stopper pole center axis, Y ·・ Direction perpendicular to the axis of the front end of the main unit housing

Claims (6)

A gripping part that clamps a cylindrical front end part of an electric power tool to which a bit is attached toward the front, and a grip part that is connected to the gripping part and projects perpendicularly to the axis of the cylindrical front end part. A locking member provided with an engaging portion with an engaged portion formed on a side surface of the stopper pole, and a through hole through which the stopper pole can pass is formed in the gripping portion in parallel with the bit. A sliding operation is possible between an engagement position where the engagement portion engages with the engagement portion and a separation position where the engagement portion moves away from the engaged portion, and the biasing means applies the engagement position to the engagement position. A side handle for an electric tool housed in a state of force,
The locking member has a sliding direction parallel to the protruding direction of the grip part, the engagement position is on the grip part side approaching the grip part, and the separation position is on the grip part side approaching the grip part. While providing
A side handle for a power tool, wherein at least the engaging portion of the lock member is made of metal.   The side handle for an electric tool according to claim 1, wherein a flange is provided around an end of the grip portion on the grip portion side, and the lock member is adjacent to the flange at the engagement position. .   The lock member is opposed to a surface on which the engaging portion is formed with the stopper pole penetrating through the through hole, and the engaged portion is formed on the stopper pole in accordance with a sliding operation of the lock member. The side handle for an electric power tool according to claim 1, wherein a guide surface is formed in which a side surface on the opposite side to the slidable contact is formed.   4. The urging means is a coil spring disposed at a position where its axis intersects perpendicularly with the axis of the stopper pole passing through the through hole. Side handle for power tools.   The side handle for an electric power tool according to any one of claims 1 to 4, wherein the grip portion is formed with a communication path that allows the accommodating portion of the lock member to communicate with the outside.   A power tool comprising the power tool side handle according to any one of claims 1 to 5 mounted on a cylindrical front end portion on which a bit is mounted toward the front.

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