JP2012232377A - Electric power tool hanger tool, and electric power tool with electric power tool hanger tool fixed thereto - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric power tool hanger tool that can prevent an electric power tool from falling even if a screw member for fixing the electric power tool hanger tool to a housing of an electric power tool is loosened, and to provide an electric power tool with the electric power tool hanger tool fixed thereto.SOLUTION: The electric power tool hanger tool 20 includes: a fastening part 21 fixed and fastened to a front end of the housing of an impact driver 1 that is formed in a cylindrical shape extending front and rear directions while projecting an output shaft forward; a pair of mount members 22, 23 extending rearward from the fastening part and mounted along a periphery of the housing; a hanger 24 extending from a rear end of at least one mount member 23 of the mount members and protruding rearward the housing 12; and the screw member 25 for coupling the pair of mount members to each other by traversing a rear end of the housing. In the electric power tool hanger tool, a sleeve body 26 to which the screw member is screwed, and which traverses the rear end of the housing together with the screw member is provided between the mount members.

Description

  The present invention relates to a power tool suspending tool that is fixed to a housing of a power tool and suspends the power tool, and a power tool that fixes the power tool suspending tool.

  For example, Patent Literature 1 discloses a power tool suspension that can be easily attached to an existing power tool. The power tool suspending tool of Patent Document 1 includes a substantially ring-shaped hook portion, a side portion provided so as to extend from the hook portion, and a tightening ring that detachably fixes the side portion to a housing of the electric tool. It has.

  The power tool suspending tool of Patent Document 1 is such that the hook is hooked on the tip of the housing with the tip of the housing facing downward, and the side is substantially in contact with the side of the housing by the tightening ring. Attach to the power tool. Furthermore, the power tool can be suspended from the belt by attaching an opening provided at the rear end of the side part to a carabiner or the like attached to the belt of the operator.

Japanese Patent No. 4327115

  However, in the power tool suspension described above, when the screw member for tightening the tightening ring to the housing is accidentally loosened and falls off the power tool suspension, the tightening ring is attached to the housing of the power tool. Can not be fixed. As a result, there is a concern that the electric tool falls from the electric tool suspension.

  The present invention has been proposed in view of such a situation, and the electric tool capable of preventing the electric tool from dropping even when the screw member for fixing the electric tool suspension to the housing of the electric tool is loosened. An object of the present invention is to provide a hanging tool for a power tool and a power tool to which the hanging tool for a power tool is fixed.

  The suspension tool for an electric tool according to the invention of claim 1 is an engaging portion fixed in an engaged state to a front end portion of a cylindrically-shaped electric tool housing having an output shaft protruding forward and extending in the front-rear direction. A pair of mounting members extending rearward from the engaging portion and mounted along the peripheral surface of the housing, and extending rearward of at least one of the mounting members and protruding rearward of the housing And a screw member for connecting the pair of mounting members across the rear end of the housing, wherein the screw member is screwed between the mounting members. And a stopper member that crosses the rear end of the housing together with the screw member.

  The invention according to claim 2 is the sleeve according to claim 1, wherein the stopper member is formed with an internal thread portion to be screwed with the screw member on the inner surface, and has a length that is more than half of the distance between the pair of mounting members. It is characterized by its body.

  According to a third aspect of the present invention, in the second aspect, the female thread portion is partially formed at a central position in the axial direction of the sleeve body.

  A power tool according to a fourth aspect of the present invention is a power tool including a cylindrical housing that extends in the front-rear direction with an output shaft protruding forward, and the housing includes any one of the first to third aspects. The hanging tool for electric tools described in the above is fixed.

According to the power tool suspension according to the invention of claim 1 and the power tool according to the invention of claim 4, for example, by hooking the hook portion of the power tool suspension on the carabiner or the like of the belt of the operator. Even when the screw member that couples the pair of mounting members is accidentally loosened with the electric tool suspended from the belt, the screw member is paired at the rear end of the housing by the stopper member screwed with the screw member. It is possible to prevent the mounting member from dropping out from between the mounting members while maintaining the state of crossing between the mounting members. Therefore, it is possible to prevent the electric tool from dropping from the electric tool suspension tool.
According to the invention of claim 2, it is possible to close more than half of the distance between the pair of mounting members by the sleeve body screwed into the screw member. Therefore, it is possible to effectively prevent the housing of the electric tool from coming off between the mounting members by the sleeve body.
According to the invention of claim 3, the sleeve member can be fixed to the screw member only by screwing the screw member into the female screw portion partially formed at the axial center position on the inner surface of the sleeve body. It becomes possible. Therefore, the operation of fixing the sleeve body to the screw member can be simplified as compared with the case where the female screw portion is formed on the inner surface of the sleeve body in the entire axial length and screwed with the screw member.

It is a perspective view of the impact driver which fixed the impact driver hanging tool of the embodiment of the present invention. It is a side view of the impact driver. It is a cross-sectional view of the impact driver. It is a front view of the impact driver. It is a rear view of the impact driver. It is a cross-sectional view of an impact driver showing a state in which the screw member of the impact driver hanging tool is loosened.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the impact driver 1 includes a main body housing 10 and an impact driver hanging tool 20. The impact driver 1 is an example of the electric tool of the present invention.

  The main body housing 10 is formed by assembling left and right half housings made of resin, and includes a body part 11, a rear cover 12, a handle part 13, and a battery pack mounting part 14. The body portion 11 is formed in a substantially cylindrical shape and extends in the front-rear direction of the impact driver 1 (left-right direction in FIG. 2). A motor M (see FIG. 3) is accommodated in the body 11. The rear cover 12 is connected to the rear end portion of the body portion 11. The rear cover 12 has a cylindrical shape with an opening on the body 11 side, and is screwed to the body 11. The main body housing 10 is an example of the housing of the present invention.

  The handle portion 13 is continuously provided from the body portion 11 so as to be substantially T-shaped in a side view of the impact driver 1. A switch (not shown) having a trigger 15 is accommodated in the handle portion 13. The battery pack mounting portion 14 is provided at the lower end of the handle portion 13. A battery pack 16 is detachably mounted on the battery pack mounting portion 14. When the switch is turned on by pushing the trigger 15 into the handle portion 13, the battery pack 16 supplies power to the motor M.

  As shown in FIG. 3, a hammer case 30 is assembled in front of the body portion 11 (left direction in FIG. 3). A hammering mechanism and an anvil 31 are housed inside the hammer case 30. The anvil 31 protrudes forward from the tip surface of the hammer case 30. The anvil 31 is supported by a bearing so as to be rotatable inside the hammer case 30. A chuck 32 is provided at the tip of the anvil 31 and can be fitted with a tip tool or a socket (not shown) coaxially with the anvil 31. The striking mechanism converts the rotation of the motor M into a rotational striking force and transmits it to the tip tool or socket. The anvil 31 is an example of the output shaft of the present invention.

  As shown in FIGS. 1 to 5, the impact driver suspending tool 20 includes an engaging portion 21, a pair of mounting members 22 and 23, a hook portion 24, a screw member 25, and a sleeve body 26. . The impact driver hanging tool 20 is an example of a power tool hanging tool of the present invention.

  The engaging portion 21 is disposed at a position corresponding to the tip side of the impact driver hanging tool 20 and has a circular ring shape. As shown in FIG. 3, the engaging portion 21 is fixed to the distal end portion of the hammer case 30 and the bumper 40 that covers the distal end side of the hammer case 30 in an engaged state. The engaging portion 21 is formed by processing an aluminum metal plate. The engagement portion 21 is provided with a socket connection portion 21 </ b> A that is substantially U-shaped and protrudes forward. The socket can be connected to the socket connecting portion 21A in a rotatable state using a carabiner or the like. This prevents the socket from dropping from the chuck 32.

  As shown in FIGS. 2 and 4, the mounting member 22 has an oval shape extending from the left half side of the outer peripheral surface of the engaging portion 21 to the rear of the body portion 11 along the left outer surface of the body portion 11. It is a loop. The mounting member 22 can be mounted on the left outer surface by having a shape curved in an arc along the peripheral surface of the body portion 11. The front side of the mounting member 22 is reinforced by a reinforcing member 22A that extends in the vertical direction with respect to the oval loop. The mounting member 22 and the reinforcing member 22A are formed by processing an aluminum metal plate. Further, as shown in FIG. 3, a through hole 22B is formed on the rear end side (right side in FIG. 3) of the mounting member 22, and a nut 22C is welded and joined to the outer surface of the mounting member 22 concentrically with the through hole 22B. Yes.

  On the other hand, as shown in FIGS. 1 and 4, the mounting member 23 extends from the right half side of the outer peripheral surface of the engaging portion 21 to the rear of the body portion 11 along the right outer surface of the body portion 11. It is a circular loop shape. The mounting member 23 also has a curved shape similar to that of the mounting member 22 so that it can be mounted on the right outer surface. The front side of the mounting member 23 is also reinforced by the reinforcing member 23 </ b> A in the same manner as the mounting member 22. The mounting member 23 and the reinforcing member 23A are also formed by processing an aluminum metal plate. In addition, as shown in FIG. 3, a through hole 23 </ b> B is formed on the rear end side (right side in FIG. 3) of the mounting member 23, and the through hole 23 </ b> B is disposed to face the through hole 22 </ b> B of the mounting member 22.

  The hook portion 24 is made of aluminum and extends at the rear end of the mounting member 23 as shown in FIG. 1 and protrudes rearward of the rear cover 12. The hook portion 24 has a substantially semi-elliptical ring shape. As will be described later, the hook portion 24 is hooked on a carabiner or the like attached to the operator's waist belt. The mounting member 23 is an example of one mounting member of the present invention.

  The screw member 25 is used to connect the mounting member 22 and the mounting member 23 as shown in FIGS. 1 and 3. A male screw portion 25 </ b> A is formed on the outer surface of the shaft portion of the screw member 25. The sleeve body 26 is made of metal and is used by being screwed with the screw member 25 as shown in FIGS. As shown in FIG. 3, an internal thread portion 26 </ b> A is formed on the inner surface of the sleeve body 26. The female screw portion 26A is partially formed at a central position P in the axial direction of the sleeve body 26 (vertical direction in FIG. 3).

  The screw member 25 is inserted into the through hole 23B of the mounting member 23, the male screw portion 25A of the screw member 25 is inserted into the sleeve body 26 and screwed into the female screw portion 26A, and the sleeve body 26 is inserted into the male screw portion 25A. Rotate to the head 25B side that hits the base side. By this rotation operation, the sleeve body 26 is screw-fed to a position where the end portion does not contact the mounting member 23. Thereafter, the distal end side of the male screw portion 25A where the sleeve body 26 is not sheathed is screwed into the female screw portion of the nut 22C. Subsequently, the sleeve body 26 is screw-fed until the end portion comes into contact with the mounting member 23. As a result, as shown in FIG. 3, the screw member 25 connects the mounting member 22 and the mounting member 23 and is disposed so as to cross the rear end of the rear cover 12 between the mounting members 22 and 23. In addition to this, the sleeve body 26 is also disposed so as to cross the rear end of the rear cover 12 between the mounting members 22 and 23 together with the screw member 25. In the present embodiment, the length L1 in the axial direction of the sleeve body 26 is set to be more than half of the distance L2 (see FIG. 6) between the pair of attachment members 22 and 23 in the unconnected state. The sleeve body 26 is an example of a stopper member of the present invention.

  Next, an example in which the impact driver 1 is prevented from falling by the impact driver hanging tool 20 of the present embodiment will be described. The impact driver hanging tool 20 is fixed to the impact driver 1 as follows. The operator inserts the body portion 11 and the rear cover 12 between the pair of mounting members 22 and 23, and then engages the distal end portion of the hammer case 30 and the bumper 40 to the engagement portion 21. Thereafter, the operator attaches the attachment members 22 and 23 to the outer surface of the body portion 11 and connects the attachment members 22 and 23 using the screw member 25 and the nut 22C screwed to the sleeve body 26. As a result, the impact driver hanging tool 20 is fixed to the impact driver 1. When the operator hooks the ring-shaped portion of the hook portion 24 on the carabiner of the waist belt, the impact driver 1 can be suspended from the waist belt.

  In the state where the impact driver 1 is suspended from the waist belt, even if the screw member 25 is accidentally loosened with respect to the nut 22C as shown in FIG. 6, the impact driver 1 is used as follows. It can prevent falling from 20. Even when the connection state between the mounting members 22 and 23 is released due to the loosening of the screw member 25, the sleeve body 26 that is externally mounted on the screw member 25 contacts the inner surface of the mounting member 23 between the mounting members 22 and 23. State is maintained. As a result, the movement of the screw member 25 in the direction in which it is removed from the through hole 23B of the mounting member 23 is restricted. Accordingly, the sleeve body 26 is maintained in a state of crossing the rear end of the rear cover 12 between the unconnected mounting members 22 and 23. In this embodiment, since the length L1 of the sleeve body 26 is set to a length that is half or more of the distance L2 between the non-connected mounting members 22 and 23, the sleeve body 26 sheathed on the screw member 25 is Close half or more of the distance L2. Therefore, it is prevented that the trunk | drum 11 and the rear cover 12 slip out from between the attachment members 22 and 23 of a non-connecting state.

<Effect of this embodiment>
In the impact driver hanging tool 20 of this embodiment and the impact driver 1 to which the impact driver hanging tool 20 is fixed, the screw member 25 is accidentally attached to the nut 22C while the impact driver 1 is suspended from the operator's waist belt. Even if the sleeve body 26 is loosened, the sleeve body 26 screwed with the screw member 25 is maintained in a state of crossing between the mounting members 22 and 23 at the rear end of the rear cover 12 and falls off between the mounting members 22 and 23. Can be prevented. Therefore, it is possible to prevent the impact driver 1 from falling from the impact driver hanging tool 20.

  In addition, since the length L1 of the sleeve body 26 is set to be more than half of the distance L2 between the unconnected mounting members 22 and 23, the sleeve body 26 screwed into the screw member 25 has a distance L2 of the distance L2. It becomes possible to block more than half. Therefore, the sleeve body 26 can effectively prevent the body portion 11 and the rear housing 12 of the impact driver 1 from coming off between the unattached mounting members 22 and 23.

  Furthermore, it is possible to fix the sleeve body 26 to the screw member 25 only by screwing the screw member 25 into the female screw portion 26A partially formed at the center position P in the axial direction on the inner surface of the sleeve body 26. become. Therefore, the operation of fixing the sleeve body 26 to the screw member 25 can be simplified as compared with the case where the female screw portion is formed on the inner surface of the sleeve body 26 in the entire axial length and screwed with the screw member 25.

  The present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example, unlike the embodiment described above, the sleeve body may be disposed between the mounting members 22 and 23 by welding the sleeve body to the inner surface of the mounting member 23 concentrically with the through hole 23B of the mounting member 23. Good. Also in this case, the sleeve body screwed to the screw member 25 keeps the screw member 25 loosened with respect to the nut 22C in a state of crossing the rear end of the rear cover 12 between the unconnected mounting members 22 and 23. It becomes possible.

  Unlike the above-described embodiment, the nut 22C may be screwed with the screw member 25 as a separate body from the mounting member 22. Further, unlike the above-described embodiment, the female thread portion of the sleeve body 26 may be formed to the full length in the axial direction. In addition, the sleeve body is not limited to a cylindrical one, and may be a cylindrical body having a female screw part formed on the inner surface and a polygonal cross section. In addition, the present invention may be applied not only to the above-described rechargeable impact driver 1 but also to a power tool such as a rechargeable hammer drill or an AC drive impact driver.

  1 ... Impact driver 10 ... Main body housing 12 ... Rear cover 20 ... Impact driver hanging tool 21 ... Attaching part 22,23 ... Installation member 24 ... Hook part 25 ... Screw member, 26 ··· Sleeve body, 26A ··· Female thread portion of sleeve body, 31 · · Anvil, L1 · · Length of sleeve body, L2 · · Distance between mounting members 22 and 23, P · · · Sleeve body The central position in the axial direction.

Claims (4)

An engaging portion that is fixedly engaged with a front end portion of a cylindrically-shaped power tool housing extending in the front-rear direction by projecting an output shaft forward, and extending backward from the engaging portion to the housing A pair of mounting members mounted along a peripheral surface of the housing, a hook portion extending at a rear end of at least one of the mounting members and projecting rearward of the housing, and the pair of members across the rear end of the housing A screw member for connecting the mounting members of the power tool,
A suspension tool for an electric tool, wherein the screw member is screwed between the mounting members, and a stopper member is provided which crosses the rear end of the housing together with the screw member.   2. The sleeve member according to claim 1, wherein the stopper member is a sleeve body having an inner surface formed with a female screw portion to be screwed with the screw member and having a length that is at least half of the distance between the pair of mounting members. The hanging tool for electric tools described.   The electric tool hanging tool according to claim 2, wherein the female thread portion is partially formed at a central position in the axial direction of the sleeve body. A power tool including a cylindrical housing extending forward and backward with an output shaft protruding forward,
An electric power tool, wherein the electric tool suspension tool according to any one of claims 1 to 3 is fixed to the housing.

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