JP4327115B2 - Locking tool for portable power tools - Google Patents

Description

  The present invention relates to a portable power tool locking tool, and more particularly to a portable power tool locking tool that can improve operability when an operator uses a portable power tool.

  Conventionally, when a portable power tool is not used, the power tool is mounted on a work belt attached to the waist by an operator. The work belt is usually provided with a plurality of mounting rings, and by hooking the ring-shaped opening of the portable power tool on the mounting ring, the portable power tool can be mounted on the worker's body. It has become. In this state, since both hands of the operator are released from having the electric tool, other operations can be performed smoothly.

The following patent document 1 is disclosed as a prior art of the portable electric tool provided with the said locking tool.
In Patent Document 1, a hook member is attached in advance below the handle portion of a pistol-type portable electric tool, and the hook tip is directed upward in order to securely hook the hook member on a hook receiver provided on a work belt. A set portable power tool is disclosed.
Japanese Utility Model Application No. 06-74282 "Drive motor for portable electric tools"

If it is the said prior art, there exist the following subjects.
(A) The hook member cannot be used unless it is a portable electric tool attached in advance. That is, it cannot be adopted for existing portable electric tools.
(B) Since the hook member is small and the mounting position of the hook member is at the lower part of the handle portion, it is difficult to hook the hook member on the hook receiver of the work belt, and the operability is poor.
(C) When the operator performs other work without holding the portable power tool, it is better to attach the power tool to the hook receiver of the work belt or the like. Sometimes it is better to attach the opening. However, the selection of the hook member and the opening is a matter of preference of each worker, and it has not been actually possible for a power tool manufacturer to manufacture a power tool according to each worker's request.

This invention is made | formed in view of the said subject, and the objective of this invention is providing the latching tool for portable electric tools which can solve the said subject.
An example of a specific purpose is as follows.
(A) To provide a locking tool for a portable power tool that can be easily attached to an existing portable power tool.
(B) To provide a locking tool for a portable power tool with improved operability in the attaching / detaching operation to the work belt.
(C) Whether the portable power tool is attached to the hook receiver or the work belt body provided on the work belt and the case where the opening of the power tool is attached to the work belt attachment ring to the preference of each worker. Provided is a portable power tool locking tool that can be easily selected according to the demand.
In addition, the subject of invention other than having described above, its solution means, and its effect are demonstrated in detail in description in the specification mentioned later.

Although the present invention can be expressed in many ways, for example, typical ones are configured as follows.
A locking tool for a portable electric tool according to a first aspect of the present invention is detachable from a portable electric tool including a power portion provided with a power shaft on a tip end side, and a grip portion extending downward from the power portion. A portable power tool locking device to be installed,
A substantially ring-shaped hook portion; a side portion provided so as to extend from a part of the hook portion; and a fixture for detachably fixing the side portion to the power portion. Has an opening for mounting,
The opening portion is carried by fixing the side portion to the power portion with a fixture in a state where the hook portion is hooked on the tip end region of the power portion of the portable electric tool and the side portion is disposed on the side surface of the portable electric tool. Configured to be placed behind the power section of the power tool
Even if it is a portable electric tool that does not have a locking means in advance, it is a configuration in which the portable electric tool locking tool is purchased and attached to the portable electric tool,
A hook member is provided on the side portion, and the hook member can be attached to a work belt .

A second invention is characterized in that, in the first invention, the fixture is fixed to a side portion.
According to a third invention, in the first invention, a support portion for a fixture is provided on the side portion.

A fourth invention is characterized in that, in the third invention, the support part is constituted by an insertion hole formed in a side part.

According to a fifth invention, in the invention according to any one of the first to fourth inventions, the side portion is formed in a substantially long U shape, and the rear end portion of the side portion is used as an opening. Features.
A sixth invention is characterized in that, in the invention according to any one of the first to fourth inventions, the side portion is constituted by a plate material, and an opening is formed at a rear end portion of the plate material.
A locking tool for a portable electric tool according to a seventh aspect of the invention is detachable from a portable electric tool provided with a power part provided with a power shaft on the tip side and a grip part extending downward from the power part. A portable power tool locking device to be installed,
A hook part that is substantially ring-shaped and made of steel, a side part of a substantially long U-shaped steel member provided so as to extend from a part of the hook part, and a clamping ring that detachably fixes the side part to the power part And an opening for mounting is formed at the rear end of the side part,
The hook is hooked on the distal end region of the power unit of the portable electric tool, and the side part is arranged on the side surface of the portable electric tool, and the side part is fixed to the power unit by the tightening ring , thereby opening the opening. Configured to be placed behind the power section of portable power tools,
This portable power tool locking tool is purchased and attached to a portable power tool for a portable power tool to which the locking means is not attached in advance .

Hereafter, each structure of the said 1st invention-7th invention is demonstrated.
In the first invention, the “substantially ring shape” refers to a shape that can be hooked to the tip end region of the power portion to such an extent that the side portion can be held. The “substantially ring shape” includes a complete ring shape, for example, a shape in which a part of the ring shape is cut out (for example, a shape like a C shape), and the like.

  The material of the hook part and the side part is preferably high strength and has a certain degree of rigidity. Usually, a high-strength material such as steel, carbon fiber, or reinforced plastic made of metal is employed. It is preferable that the fixture is also made of the above-described high strength material and has flexibility.

The shape, configuration, and material of the fixture are not particularly limited. The attachment is preferably a band or ring. Moreover, the fixture may be configured not only to be fixed to the side but also to be detachable from the side.
The angle formed between the hook and the side is preferably set in the range of 75 ° to 135 °, preferably in the range of 85 ° to 110 °. Usually, it is set to about 90 °. A configuration in which the hook portion and the side portion are connected by a hinge structure can also be adopted.

In addition, the magnitude | size of the diameter of the hook part of a locking tool, the length of a side part, and the magnitude | size of an opening part are set corresponding to the magnitude | size of the power part of the portable electric tool assumed to be used. The power unit of the portable power tool is set to a size that can be held by an operator with one hand. Therefore, by setting the hook part, the side part, and the opening part corresponding to the size, it can be applied to most portable electric tools sold by each electric tool manufacturer.
Moreover, if necessary, a plurality of sizes of the locking tool for portable power tool according to the present invention may be prepared and selected according to the size of each power tool.

The “supporting portion” described in the third invention can be exemplified by the insertion hole described in the fourth invention. In addition, the structure which employ | adopts various fixing tools, the structure which provides the dent which sets the position of a fixture in a side part, etc. can be illustrated.
The side part manufacturing method according to the fifth aspect of the invention includes a method of bending a steel material to form a substantially long U shape.

In a sixth aspect of the present invention, the plate member is preferably provided with a vent hole for passing hot air from the power section. As the plate material, it is preferable to use a synthetic resin material having a high strength such as a carbon fiber resin. It is also possible to manufacture the plate material and the hooking part by integral molding.

The effects of each invention will be described below.
If it is 1st invention, it has the effect of following (I) (B) (C) .
(A) Even if the portable electric tool has a configuration that does not have a locking tool, the locking tool according to the present invention is purchased, and the hook portion is hooked on the tip end region of the power portion of the portable electric tool, and the side By fixing the side part to the power unit with a fixture in a state where the part is disposed on the side surface of the portable power tool, a portable power tool having an opening can be obtained. Therefore, it is possible to provide a locking tool that can be easily attached to an existing electric tool.
(B) In the case of the locking tool according to the present invention, since the opening is disposed behind the power unit of the portable power tool, the opening and hooks are arranged below the grip of the portable power tool. Compared with the configuration in which the stopping means is provided, the work belt can be easily attached to and detached from the attachment ring. This is because, when the operator holds the portable power tool with one hand and brings the portable power tool to the waist, the front end of the portable power tool is naturally facing downward, and the rear end of the power section Since the side faces upward, the operation of attaching the opening provided at the position behind the power unit to the mounting ring can be easily performed. Therefore, the attaching / detaching operation of the portable power tool to the work belt can be easily performed, and the work can be performed efficiently.
(C) Since the portable power tool can be attached to the work belt by the hook member in addition to the attachment to the work belt through the opening, the form of the portable power tool attached to the work belt can be changed according to the work. It can be used properly, and operability can be improved according to the preference of each worker.

If it is 2nd invention, since the said attachment tool is being fixed to the side part, while being able to make the position fixed to a power part constant, to the power part of the locking tool for portable electric tools which concerns on this invention There is an advantage that can be easily installed.
If it is 3rd invention, it will become easy to attach a side part to the motive power part of a portable electric tool. Also, with this configuration, when the fixture is damaged or outdated, it is possible to replace only the fixture without changing the side, compared to a configuration in which the fixture is fixed to the side by welding or the like. Therefore, it becomes possible to use the portable power tool locking tool in a good state for a long period of time.

If it is the 4th invention, since the above-mentioned support part was constituted by an insertion hole, a fixture can be firmly supported by simple composition. Further, there is an advantage that the fixture can be easily replaced when the fixture is damaged.

If it is 5th invention, since an opening part can also be formed together by forming a side part in a substantially long U shape, it can manufacture simply and at low cost.
If it is 6th invention, even if a side part is comprised with the board | plate material, it can be made to function as a locking tool of the said portable electric tool.
If it is 7th invention, there exists an advantage which can manufacture a locking tool lightweight and cheap with the effect of said (A) and (B).

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1-4 is a figure for demonstrating the locking tool for portable electric tools which concerns on 1st Embodiment of this invention, FIG. 1 is a perspective view of the locking tool for portable electric tools, FIG. 3 is a side view showing a state in which the stopper is mounted on the portable electric tool, FIG. 3 is a view of FIG. 2 as viewed from the front end side, and FIG. 4 is a view showing a state in which the locking tool is mounted on the work belt.

In this embodiment, as shown in FIG. 2, a cordless impact driver 1 is illustrated as a portable power tool 2. The impact driver 1 has a substantially pistol shape as a whole.
The impact driver 1 contains a drive motor (not shown) therein, a power unit 4 provided with a power shaft 3 on the tip side, a gripping unit 5 extending downward from the power unit 4, and its And a battery part 6 provided at the lower end part position of the grip part 5.

A bit holder 7 is provided at the tip of the power shaft 3, and a predetermined working tool 8 such as a driver bit is detachably attached to the bit holder 7.
A battery unit (not shown) built in the battery unit 6 is a battery that drives a drive motor, and the battery unit is configured to be detachable from the battery unit 6. The battery unit is configured to be rechargeable, and a nickel metal hydride battery or the like is used.
A switch 9 is provided in the trigger position of the pistol on the upper tip side of the grip portion 5 to operate the drive motor to start and stop.

Next, the structure of the locking tool 12 for portable electric tools (hereinafter abbreviated as locking tool) according to the present embodiment will be described.
As shown in FIGS. 1 and 2, the locking device 12 includes a substantially ring-shaped hook portion 13, a side portion 14 provided so as to extend from the base end of the hook portion 13 with an angle θ, and a side A clamping ring 16 is provided as an attachment 15 for detachably fixing the portion 14 to the power unit 4. A mounting opening 17 is formed at least at the rear end of the side portion 14.
In the configuration of the first embodiment shown in FIGS. 1 to 4, the hook portion 13 is configured by a substantially circular frame for hooking on the distal end region of the power portion 4, and the assumed diameter of the power portion 4. Further, the diameter of the frame body is made smaller so that the frame body can be hooked on the tip end region.

  The side portion 14 is connected with an angle θ with respect to a plane on which the frame of the hook portion 13 is located, and is configured by welding a long substantially U-shaped steel material to the base of the substantially circular frame. is there. The angle θ is preferably about 90 °.

The opening 17 is configured to be able to be locked to the mounting ring 19 (see FIG. 4) by projecting the rear end of the substantially U-shaped bent steel material from the rear end of the power unit 4.
The locking tool 12 hooks the hook portion 13 to the tip end region of the power unit 4 of the impact driver 1, and the power unit 4 by the tightening ring 16 in a state where the side unit 14 is substantially in contact with the lateral side of the power unit 4. Fix to 4.

As shown in FIG. 4, the operator attaches the opening 17 of the portable power tool 2 to the mounting ring 19 in a detachable manner with the work belt 20 including the mounting ring 19 attached to the waist.
A part of the ring 19 for mounting is a hinge structure, and when the hinge part moves inward, the opening 17 is inserted into the ring 19 and the opening 17 is hooked on the ring 19. It is configured to be able to.

  2 and FIG. 3, the side part 14 of the locking tool 12 is attached substantially parallel to the power part 4 of the impact driver 1, and the opening part 17 is the impact driver. Since the power unit 4 is disposed behind the power unit 4, the attaching / detaching operation to the mounting ring 19 is facilitated. In this state, the gripper 4 of the impact driver 1 is held with one hand and the impact driver 1 is brought to the waist position, the tip side of the impact driver 1 is directed downward naturally, and the rear end side of the power unit 4 is This is because the opening portion 17 provided at the rear position of the power unit 4 can be easily attached to the mounting ring 19 because it faces upward.

  In addition, since the power unit 4 of the portable electric tool 2 is designed to have a size that can be held by an operator with one hand, the diameter of the hooking unit 13 of the locking tool 12 corresponding to the size, By setting the length of 14 and the size of the opening 17, the locking tool 12 can be applied regardless of the type of portable electric tool sold by each company. In particular, even if the portable power tool 2 does not have a locking means in advance, it is possible to make the portable power tool 2 easy to use by purchasing and attaching the locking tool 12.

  Moreover, if it is the latching tool 12 which concerns on this 1st Embodiment, the ring-shaped hook part 13 will be comprised in the one side of steel materials, and the substantially long U-shaped side part 14 will be formed in the other side, and it will be hooked Since the locking tool 12 is configured by bending at approximately 90 ° in the sectioned area between the portion 13 and the side portion 14, there is an advantage that the structure is simple and the mechanical strength is increased. Furthermore, since only the side part 14 made of two steel materials is attached to the side surface of the power unit 4, there is no possibility of closing the hot air blowing hole provided on the side surface of the power unit 4. Moreover, if this structure is used, there exists an advantage which can manufacture the latching tool 12 lightweight and cheaply.

(Second Embodiment)
FIG. 5 is a perspective view showing a locking tool according to the second embodiment of the present invention, and corresponds to FIG. In addition, about the member same as 1st Embodiment, or the member which has the same function, the same code | symbol is attached | subjected and the description is abbreviate | omitted. In the third embodiment, which will be described later, the description of the symbols is also omitted.

The second embodiment is characterized in that the support portion 21 of the fixture 15 is provided on the side portion 14 of the locking tool 12. In the configuration shown in FIG. 5, the support portion 21 includes a pair of insertion holes 22 and 22 provided in a substantially U-shaped steel material of the side portion 14. Then, the fixture 15 is supported by passing the fixture 15 through the insertion holes 22.
If it is the latching tool 12 of this 2nd Embodiment, since the attachment tool 15 is the structure supported by the side part 14, it will become easy to mount | wear the power part 4 of the portable electric tool 2 with the side part 14. FIG.

  In addition, in this configuration, when the fixture 15 is damaged or becomes old as compared with the configuration in which the fixture 15 is fixed to the side portion 14 by welding or the like, the side portion 14 and the hooking portion 13 are Since it is possible to use it as it is and to replace only the fixture 15, the locking tool 12 can be used for a long period of time.

(Third embodiment)
FIG. 6 is a perspective view showing a locking tool according to a third embodiment of the present invention, and corresponds to FIG.
The third embodiment is characterized in that a hook member 23 for attaching a work belt is provided on the side portion 14 of the locking tool 12. In the configuration shown in FIG. 6, the hook member 23 is attached to the side portion 14 in addition to the configuration in which the support portion 21 is attached to the side portion 14. The hook member 23 is arranged closer to the hooking portion 13 than the position of the side portion 14 where the support portion 21 of the fixture 15 is provided. The hook member 23 is preferably firmly fixed to the side portion 14 by welding or the like.
The hook member 23 may be hooked on a hook receiver 25 (see FIG. 4) provided on the work belt 20, or may be hooked on the work belt 20 itself.

  In the case of the locking device 12 of the third embodiment, in addition to mounting the work belt 20 to the mounting ring 19 by the opening 17, the portable power tool 2 can be attached to the work belt by the hook member 23 as necessary. 20 can be attached. Therefore, the form of mounting the portable power tool 2 on the work belt 20 can be used properly according to the selection of each worker, and workability can be improved.

FIG. 1 is a perspective view of a portable power tool locking tool according to a first embodiment of the present invention. FIG. 2 is a side view showing a state where the locking tool according to the first embodiment is mounted on the portable electric tool. FIG. 3 is a view of FIG. 2 as viewed from the front end side. FIG. 4 is a view showing a state where the locking tool is mounted on the work belt. FIG. 5 is a perspective view showing a locking tool according to the second embodiment of the present invention. FIG. 6 is a perspective view showing a locking tool according to a third embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Impact driver, 2 ... Portable electric tool, 4 ... Power part, 5 ... Holding part, 12 ... Locking tool for portable electric tools, 13 ... Hook part, 14 ... Side part, 15 ... Mounting tool, 16 ... Tightening Ring , 17 ... opening, 20 ... working belt, 21 ... support, 23 ... hook member, 22 ... insertion hole.

Claims (7)

A portable electric tool locking tool that is detachably attached to a portable electric tool comprising a power unit provided with a power shaft on the tip side, and a gripping part extending downward from the power unit,
A substantially ring-shaped hook portion; a side portion provided so as to extend from a part of the hook portion; and a fixture for detachably fixing the side portion to the power portion. Has an opening for mounting,
The opening portion is carried by fixing the side portion to the power portion with a fixture in a state where the hook portion is hooked on the tip end region of the power portion of the portable electric tool and the side portion is disposed on the side surface of the portable electric tool. Configured to be placed behind the power section of the power tool
Even if it is a portable electric tool that does not have a locking means in advance, it is a configuration in which the portable electric tool locking tool is purchased and attached to the portable electric tool,
A hook for a portable electric tool, wherein a hook member is provided on the side portion, and the hook member can be attached to a work belt . The portable electric tool locking tool according to claim 1, wherein the mounting tool is fixed to a side portion. The locking tool for portable electric tools according to claim 1, wherein a support portion for a fixture is provided on the side portion. The locking tool for portable electric tools according to claim 3, wherein the support portion is configured by an insertion hole formed in a side portion. In the locking tool for a portable power tool according to any one of claims 1 to 4 , the side portion is formed in a substantially long U shape, and the rear end portion of the side portion is used as an opening. Locking tool for portable power tools. The portable electric tool locking device according to any one of claims 1 to 4 , wherein the side portion is made of a plate material and an opening is formed at a rear end portion of the plate material. Stopper. A portable electric tool locking tool that is detachably attached to a portable electric tool comprising a power unit provided with a power shaft on the tip side, and a gripping part extending downward from the power unit,
A hook part that is substantially ring-shaped and made of steel, a side part of a substantially long U-shaped steel member provided so as to extend from a part of the hook part, and a clamping ring that detachably fixes the side part to the power part And an opening for mounting is formed at the rear end of the side part,
The hook is hooked on the distal end region of the power unit of the portable electric tool, and the side part is arranged on the side surface of the portable electric tool, and the side part is fixed to the power unit by the tightening ring , thereby opening the opening. Configured to be placed behind the power section of portable power tools,
A portable electric tool locking tool characterized in that the portable electric tool locking tool is purchased and attached to a portable electric tool with respect to a portable electric tool to which the locking means is not previously attached .

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