JP6252637B1 - Locking tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking tool that can be easily and reliably locked to a portable electric tool regardless of the shape of the portable electric tool and does not impair workability even when suspended. To do. SOLUTION: A locking tool attached to a portable electric tool having a power unit provided with a power shaft on a front end side and a gripping part extending downward from the power unit, the front end of the power unit being A substantially ring-shaped engaging portion to be inserted, a plurality of side portions extending rearward from both ends of the engaging portion, and a rear end that contacts the rear end of the power unit and is fastened to at least one of the side portions It is set as the structure which has a contact part and the hook part extended behind the rear-end contact part, and hooked on a work belt. [Selection] Figure 1

Description

  The present invention relates to a locking tool that is attached to a portable power tool and suspends the portable power tool, and in particular, a locking tool that does not impair the operability of the portable power tool body and the workability when suspended. About.

  Conventionally, when a portable power tool is not used, an operator attaches the portable power tool to a work belt attached to his / her waist. The work belt is usually provided with a plurality of attachment rings, and a hook member provided below the handle portion of the portable power tool is hooked on the attachment ring so that the work belt can be carried on the operator's body. A power tool can be attached. In this state, the operator can open both hands, so that other operations can proceed smoothly.

  However, in the case of the portable electric tool described above, if the hook member is not attached to the portable electric tool body in advance, it cannot be attached to the attachment ring, and the hook member is attached to the lower part of the handle portion. There is a problem that the operability of the mobile phone is hindered, the hook member is not easily hooked to the mounting ring, and the portable power tool is dropped when hooked.

  Then, the portable electric tool latch shown in patent document 1 is proposed. This portable electric tool locking tool includes a substantially ring-shaped hook portion, a side portion provided so as to extend from a part of the hook portion, and an attachment for detachably fixing the side portion to a power portion of the portable electric tool. In the state that the opening for mounting is formed at the rear end portion of the side portion, the hook portion is hooked on the front end portion of the power portion, and the side portion is disposed on the side surface of the portable electric tool, By fixing the side part to the power unit with the fixture, the opening can be arranged behind the power unit.

  With such a configuration, the opening can be attached to the attachment ring attached to the work belt, and since the hook member is provided on the side, the hook member can be attached to the work belt itself. it can.

Japanese Patent No. 4327115

  However, recent portable electric tools have been reduced in size and weight, and the length of the power section of the main body has been shortened due to this effect. It is not sufficient to fix the side part to the side surface of the power unit with a tool, and there is a risk that the mounting tool will loosen during use and the locking tool will come off the main body. In addition, in order to sufficiently fix the locking tool, there is a problem that the side part is tightened too much by the mounting tool and the main body is damaged or the operation is disturbed.

  The present invention has been made in view of such problems, and can be easily and reliably locked to a portable electric tool regardless of the shape of the portable electric tool, and impairs workability even when suspended. It is an object of the present invention to provide a locking tool that does not have any.

In order to achieve the above object, the locking tool of the present invention is attached to a portable electric tool including a power unit provided with a power shaft on the tip side and a gripping part extending downward from the power unit. A locking member, a flat plate through which the tip of the power unit is inserted and having a substantially ring-shaped through hole, and a pair of substantially plate-like members extending rearward from both ends of the locking unit a side consisting of, substantially hooked and the power portion substantially disposed at the rear end circular rear end consisting of flat abutment, rearward extending the working belt of the rear abutment section U And a rear end of one of the side portions is fixed to one end of the rear end contact portion, and the other rear end is connected to one end of the rear end contact portion. By fastening with the arm part and the fastening member, the power part is pressed and held by the four surfaces of the engaging part, the pair of side parts, and the rear end contact part. Characterized in that the so that.

  The side portions are a pair of long bolts, and the rear ends of the pair of side portions are inserted into both ends of the rear end abutting portion and fastened by a fastening member.

Moreover, the said locking tool is mounted | worn by rotating 30 degrees-50 degrees from the position where the line which connects a pair of said side part with respect to the rotating shaft of the said power shaft becomes horizontal .

  According to the present invention, there is provided a locking tool attached to a portable electric tool including a power unit provided with a power shaft on a distal end side and a gripping part extending downward from the power unit, wherein the power unit A substantially ring-shaped engaging portion through which the front end of the engaging portion is inserted, a plurality of side portions extending rearward from both ends of the engaging portion, and a rear end of the power portion and at least the side portion Since it has a configuration including a rear end abutting portion that is fastened to one and a hook portion that extends behind the rear end abutting portion and is hooked on the work belt, the portable electric tool can be easily configured with a simple configuration. It can be attached and does not impair the operability of the portable power tool when it is attached, and also makes the work troublesome by minimizing the shaking of the portable power tool when suspended from the user's work belt There is nothing.

  Moreover, since it can adjust and attach with respect to the portable electric tool from which a magnitude | size differs, it is possible to respond | correspond to the portable electric tool of various magnitude | sizes.

It is the perspective view which showed the structure of the locking tool of a portable electric tool. It is the top view which showed the structure of the locking tool of a portable electric tool. It is the figure which showed the structure of the portable electric tool equipped with the locking tool. It is the figure which showed the state which made the front-end | tip of a portable electric tool penetrate the engagement part of a locking tool, It is the left view which showed the state which contacted the side part of the fastener with the side surface of the motive power part of a portable electric tool. It is the right view which showed the state which made the side part of a locking tool contact the side surface of the power part of a portable electric tool. It is the figure which showed the state which made the back end contact part of a locking tool contact the back end of a portable electric tool. It is the figure which showed the state which made the front-end | tip of a portable electric tool penetrate the engaging part of a locking tool. It is the figure which showed the state which made the side part of a locking tool contact | abut above the side surface of a portable electric tool. It is the figure which showed the state which contact | abutted the side part of the latching tool to the lower side surface of the portable electric tool. FIG. 11 is a diagram illustrating a state in which the rear end contact portion of the locking tool is in contact with the rear end of the portable power tool. It is a perspective view of the locking tool concerning a 2nd embodiment. It is a top view of the latching tool which concerns on 2nd Embodiment.

<First Embodiment>
Next, the structure of the locking tool according to the first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view illustrating a configuration of a locking tool for a portable power tool, and FIG. 2 is a top view illustrating a configuration of the locking tool for the portable power tool.
As shown in FIGS. 1 and 2, the locking tool 1 includes an engaging portion 10 that engages a distal end of a portable electric tool 100 described later, and a pair of side portions 20 that are disposed on a side surface of the portable electric tool 100. 21, a rear end contact portion 30 that is disposed at the rear end of the portable power tool 100 and presses the rear end, and a hook portion 40 that is provided so as to extend rearward of the rear end contact portion 30. .

  In the above configuration, the engaging portion 10 is hooked and engaged with the distal end portion of the portable power tool 100 as described above. Therefore, it is comprised with the frame which has a substantially ring-shaped through-hole. The diameter of the through hole is smaller than the diameter of the tip portion of the portable power tool 100. In this way, the engaging portion 10 can be hooked on the tip of the portable power tool 100 by making the diameter of the through hole smaller than the diameter of the tip of the portable power tool 100.

  In addition, arm portions 11 are connected to both ends of the engaging portion 10, and the ends of the side portions 20 and 21 are fixed and extended to the arm portions 11 with screws or the like.

  The pair of side portions 20 and 21 are substantially thin plate-like members, and the distal ends of these side portions 20 and 21 are fixed to the arm portions 11 and 11 of the engaging portion 10 as described above.

  By the way, the rear end of the side portion 21 is fixed to the end portion of the rear end contact portion 30 with a screw or the like, and the rear end of the side portion 20 is bent obliquely outward to form a through hole (not shown). The fastening portion 20a is provided.

  The fastening part 20a of the side part 20 and the arm part 31 provided at the end part of the rear end contact part 30 to be described later and having a through hole (not shown) are tightened with a screw 200 and a nut 300. It has become. Thus, the side part 21 is configured to match the length of the portable power tool 100 and is configured to be fastened by the side part 20 and the rear end contact part 30.

  The rear end contact portion 30 is a substantially plate-like member that presses the rear end portion of the portable power tool, and has a substantially circular hole formed in the center portion. As described above, the arm portion 31 is provided at one end by being bent in an oblique direction, and the arm portion 31 is provided with a through hole.

  The rear end abutting portion 30 is provided with a substantially U-shaped hooking portion 40 so as to extend rearward. The hook portion 40 is for hooking on a carabiner or the like attached to the user's work belt.

  In recent years, portable power tools have been reduced in size, but on the other hand, batteries have become larger and heavier. For this reason, if the substantially U-shaped hook part 40 is large, the battery part greatly shakes along the U-shape due to the weight of the battery, which may repeatedly hit the user's body or hinder the work. .

  Therefore, the size of the substantially U shape of the hooking portion 40 is made as small as possible so as not to hinder the user's hooking operation on a carabiner or the like attached to the work belt.

  By forming in this way, the portable power tool 100 sways only along the substantially U-shaped shape, which is the minimum size during the work of the user, so that the user is bothered by the body and obstructing the work. Disappear.

  In addition, although the latching tool 1 is comprised by metal as a whole, resin other than the screw 200 and the nut 300 may be sufficient. In addition, the engaging portion 10 and the side portions 20 and 21 may be configured to extend separately to the rear end contact portion 30 side, or the side portions 20 and 21 may be provided on the arm portions 11 at both ends of the engaging portion 10. May be fixed by welding, or the engaging portion 10 and the side portions 20 and 21 may be integrally formed so as to extend toward the rear end contact portion 30 side. Further, in addition to the screw 200 and the nut 300, the hook portion 40 may be made of metal. Further, the arm portion 31 may be provided at both ends of the rear end contact portion 30. In this case, it is set as the structure which has fastening part 20a, 21a in both rear ends of the side parts 20 and 21, and the fastening parts 20a and 21a and the arm part 31 which has both ends are fastened with the screw 200 and the nut 300. FIG.

Next, with reference to FIG. 3, the structure of the portable electric tool equipped with the locking tool according to the first embodiment of the present invention will be described.
As shown in FIG. 3, the portable power tool 100 is a substantially pistol type cordless impact driver. This portable electric tool 100 has a drive motor (not shown) housed therein, a power unit 101 provided with a power shaft (not shown) on the tip side, and a downward extending from the power unit 101. A grip portion 102 and a battery portion 103 provided at the lower end position of the grip portion 102 are provided.

A bid holder 104 is provided at the tip of the power unit 101, and various working tools such as a driver bid can be detachably attached to the bid holder 104.
A battery unit (not shown) built in the battery unit 103 is a battery that drives a drive motor, and the battery unit is configured to be detachable from the battery unit 103. The battery unit is configured to be rechargeable, and a nickel hydride battery or the like is used.

  Further, a switch 105 for operating start and stop of the drive motor is provided at the trigger position of the pistol on the upper tip side of the grip portion 102.

  Next, with reference to FIGS. 4-7, the method to make a portable electric tool equip a locking tool is demonstrated. FIG. 4 is a view showing a state in which the tip of the portable power tool is inserted through the engaging portion of the locking tool, and FIG. 5 is a side view where the side of the locking tool is brought into contact with the side surface of the power portion of the portable power tool. FIG. 6 is a left side view showing a state of contact, FIG. 6 is a right side view showing a state in which the side portion of the locking tool is in contact with the side surface of the power unit of the portable electric tool, and FIG. It is the figure which showed the state which made the back end contact part of a locking tool contact the back end of a portable electric tool.

  First, the nut 300 that fastens the fastening portion 20a of the side portion 20 of the locking tool 1 shown in FIGS. 1 and 2 and the end portion of the rear end abutting portion 30 is loosened. As shown, the bit holder 104 at the tip of the portable power tool 100 is inserted through the frame of the engaging portion 10.

  Next, as shown in FIGS. 5 and 6, the pair of side portions 20 and 21 are brought into contact with both side surfaces of the power unit 101, and as shown in FIG. It abuts on the rear end. Then, the screw 200 inserted through the fastening portion 20 a included in the side portion 20 and the arm portion 31 connected to the end portion of the rear end abutting portion 30 is tightened with the nut 300.

  As a result, the engaging portion 10 and the rear end abutting portion 30 are pressed against the power portion 101 from the front and back, and the side portions 20 and 21 are pressed against both side surfaces of the power portion 101 so that the locking tool 1 is moved. It can be attached to the portable power tool 100.

  In addition, as a method of mounting the locking tool according to the embodiment of the present invention, in addition to the mounting method described above, for example, as illustrated in FIGS. 8 to 11, the locking tool 1 mounted on the portable power tool 100 is used. There is a mounting method in which the mobile power tool 100 is mounted in an arbitrary position by moving in the rotational direction with respect to the power shaft of the power unit 101.

  FIG. 8 is a view showing a state in which the tip of the portable power tool is inserted through the engaging portion of the locking tool, and FIG. 9 is a diagram in which the side portion of the locking tool is brought into contact with the upper side of the portable power tool. FIG. 10 is a view showing a state in which the side portion of the locking tool is in contact with the lower side of the portable electric tool, and FIG. 11 is a view of the rear end of the locking tool. It is the figure which showed the state which contact | abutted the contact part to the rear end of the portable electric tool.

  As shown in FIG. 8, the locking tool 1 temporarily fixed to the portable electric tool 100 is rotated by 30 to 50 ° with respect to the rotating shaft of the power shaft. In this state, the side portion 21 is located below the side surface of the power unit 101 as shown in FIG. 9, and the side portion 20 is located above the side surface of the power unit 101 as shown in FIG. Then, as shown in FIG. 11, by holding the rear end of the power unit 101 with the rear end contact portion 30, the locking tool 1 can be attached to the power unit 101 obliquely.

  Thus, when the power unit 101 of the portable power tool 100 is attached obliquely, the hook 40 is hooked diagonally with respect to the carabiner or the like attached to the work belt. It has the same effect as the size is substantially reduced.

  For this reason, the shaking of the portable power tool 100 can be minimized. In addition, when mounted obliquely in this way, normally, if there is nothing, it will try to return from the diagonal, but since the waist belt is equipped with a carabiner or the like, the portable power tool 100 main body is the waist belt or body of the operator. To avoid returning to the original.

  This action has an effect of suppressing the portable electric tool 100 from shaking when walking with the portable electric tool 100 hooked on the waist belt.

  Further, when the locking tool 1 is attached to the portable power tool 100, the thickness of the portable power tool 100 is increased. Therefore, when hooked on a carabiner or the like, the locking tool is held in the user's hand during work or walking. 1 side 20 may be hit, but since the locking tool 1 is attached obliquely to the portable power tool 100, the side 20 is positioned at the rear of the user, so that the user's It becomes hard to hit.

<Second Embodiment>
Next, with reference to FIG. 12 and FIG. 13, the locking tool which concerns on the 2nd Embodiment of this invention is demonstrated.
FIG. 12 is a perspective view of a locking tool according to the second embodiment, and FIG. 13 is a top view of the locking tool according to the second embodiment.

  As shown in FIGS. 12 and 13, the locking tool 2 according to the second embodiment includes a locking portion 50 that locks the tip of the portable power tool 100 and a pair that is disposed on a side surface of the portable power tool 100. Side portion 60, a rear end abutting portion 70 that is disposed at the rear end of the portable power tool 100 and presses the rear end, and a hook portion 80 that is provided to extend rearward of the rear end abutting portion 70. Has been.

  In the above configuration, the engaging portion 50 is hooked and engaged with the distal end portion of the portable power tool 100. Therefore, it is comprised with the frame which has a substantially ring-shaped through-hole. The diameter of the through hole is smaller than the diameter of the tip of the portable power tool 100, so that the engaging portion 50 can be hooked on the tip of the portable power tool 100.

  In addition, arm portions 51 are connected to both ends of the engaging portion 50 so as to extend rearward, and end portions of the arm portions 51 have through holes (not shown).

  The pair of side portions 60 and 61 are constituted by half-screw bolts having a long threaded portion.

  The rear end abutting portion 70 is a substantially plate-like member that presses the rear end portion of the portable power tool, and a substantially circular hole is formed in the central portion. Arm portions 71 are connected to both ends so as to extend forward. The end portion of the arm portion 71 has a through hole (not shown). The rear end abutting portion 70 is provided with a substantially U-shaped hooking portion 80 so as to extend rearward.

  In the above configuration, the side portions 60 and 61 penetrate through the arm portions 51 provided continuously at both ends of the engaging portion 50 and the arm portions 71 and 72 provided continuously at both ends of the rear end contact portion 70. Each is inserted into the hole, and the locking tool 2 is assembled by tightening the nut 300 to the screw portion. In addition, although the latching tool 1 is comprised with metal as a whole, resin other than a screw part and the nut 300 may be sufficient. In addition, the engaging portion 50 and the side portions 60 and 61 may be configured to extend separately to the rear end abutting portion 70 side, or the side portions 60 and 61 are provided on the arm portions 51 at both ends of the engaging portion 50. May be fixed by welding, or the engaging portion 50 and the side portions 60 and 61 may be integrally formed to extend toward the rear end contact portion 70 side. In addition to the screw portion and the nut 300, the hook portion 40 may be made of metal.

  In order to attach the locking tool according to the second embodiment, the rear end contact portion 70 is placed between the lengths of the side portions 60 and 61 in accordance with the length of the power portion 101 of the portable power tool 100 to be attached. Move and adjust with. Next, the front end of the power unit 101 is inserted into the frame body of the engaging unit 50, the side parts 60 and 61 are brought into contact with both side surfaces of the power part 101, and the rear end contact part 70 is brought into contact with the side parts 60 and 61. Between the longitudinal directions of the power unit 101 and the rear end of the power unit 101.

  Then, the rear end of the power unit 101 is pressed by the rear end contact portion 70 by tightening the nuts 300 attached to the end portions of the screw portions of the side portions 60 and 61. As a result, it is possible to attach the locking tool 2 to the portable power tool 100 by pressing the power unit 101 from the front and back with the engaging part 50 and the rear end contact part 70.

  Although not shown in the drawings, as shown in the first embodiment, the locking tool 2 can also be mounted by rotating by 30 ° to 50 ° with respect to the rotational direction of the power shaft of the portable electric tool 100. It is.

  According to the latching tool which concerns on 2nd Embodiment, since it comprised in this way, it can apply also to the portable electric tool from which the length of a motive power part differs.

  In the first and second embodiments, the number of side portions is described as two in the drawings, but the number is not limited to this. For example, three or four side portions are used. You may make it conclude. If the number increases, the fastening force can be improved accordingly.

  Further, in the first and second embodiments, the locking tool 2 is configured to rotate 30 ° to 50 ° with respect to the rotation direction of the power shaft of the portable electric tool 100, but the rear end contact portion 30. , 70 may be provided so as to have an inclination of 30 ° to 50 ° with respect to the vertical direction.

1, 2, Locking tool 10, 50 Engagement part 11, 51, 71 Arm part 20, 21, 60, 61 Side part 30, 70 Rear end contact part 40, 80 Hook part 100 Portable electric tool 101 Power part 102 Gripping Part 103 Battery part 104 Bit holder 105 Switch 200 Screw 300 Nut

Claims (3)

A locking tool to be attached to a portable electric tool including a power unit provided with a power shaft on the tip side and a gripping part extending downward from the power unit,
An engaging portion having a substantially ring-shaped through hole in a flat plate through which the tip of the power portion is inserted,
Side portions composed of a pair of substantially plate-like members extending rearward from both ends of the engaging portion;
A rear end abutting portion arranged at a rear end of the power unit and configured by a substantially circular flat plate;
A substantially U-shaped hook portion that extends behind the rear end abutting portion and is hooked on the work belt,
One rear end of the side portion is fixed to one end of the rear end contact portion, and the other rear end is fastened with an arm portion connected to one end of the rear end contact portion by a fastening member. The locking device is characterized in that the power portion is pressed and held by four surfaces of the engaging portion, the pair of side portions, and the rear end contact portion .   The said side part is a pair of elongate bolt, Comprising: The rear end of a pair of said side part is penetrated by the both ends of the said rear-end contact part, and is fastened with a fastening member. Locking tool. The said locking tool is mounted | worn by rotating 30 degrees-50 degrees from the position where the line which connects a pair of said side part with respect to the rotating shaft of the said power shaft becomes horizontal. Locking tool.

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