Tool holder

Abstract

To hold one of an electric tool and a non-electric tool around a worker's body selectively according to a work content performed by a worker.SOLUTION: A tool holder includes: an engagement tool 2 configured to be attachable to both of an impact driver 200 which is an electric tool machine and a carabiner 300 for handing a non-electric tool and be selectively attached to one of the impact driver 200 and the carabiner 300; and an engaged tool 3 with which the engagement tool 2 is engaged. The engagement tool 2 is configured to be engageable with a belt 100 wrapped around a waist of a worker M while hanging the carabiner 300 when the engagement tool 2 is not engaged with the engaged tool 3.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a tool holder used by a worker who uses a tool. Regarding. [Background technology]

[0002] BACKGROUND ART Conventionally, as described in Patent Document 1, for example, there is known a technique for locking a locking tool attached to a power tool with a locking target tool already attached to a belt. On the other hand, as described in Patent Document 2, for example, there is known a technology in which a hanging device for hanging ordinary tools such as hammers, wrenches, and spanners (hereinafter referred to as simply "non-power tools") that are not power tools is attached directly to a belt. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-106256 [Patent Document 2] Utility Model Registration No. 3244512 Summary of the Invention [Problem to be solved by the invention]

[0004] The technology of the above-mentioned Patent Document 1 is configured so that only the locking device attached to the power tool can be locked to the locking device, so when a worker is performing work that does not require the power tool, the locking device is not only useless but also gets in the way of the work. On the other hand, the technology described in Patent Document 2 attaches a tool suspender directly to a belt, and is not configured to engage this suspender with a suspendable device used for power tools such as those described above.

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a tool holder that can selectively hold either a power tool or a non-power tool around an operator depending on the type of work the operator is performing. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the present invention comprises a locking device that is configured to be attachable to both an electric tool machine and a tool hanging device for hanging a non-electric tool, and that can be selectively attached to either the electric tool machine or the tool hanging device, and a lockable device to which the locking device is locked.

[0007] In the present invention, the fastening tool that is fastened to the fastened tool can be used to attach either a power tool or a non-power tool.

[0008] Therefore, when a worker performs work using a power tool, the worker can perform the work while holding the power tool close to him / her by attaching the power tool to the locking device and then locking the locking device to the locked device.When a worker performs work using a non-power tool, the worker can perform the work while holding the non-power tool close to him / her by attaching the non-power tool to the locking device and then locking the locking device to the locked device. [Effects of the Invention]

[0009] According to the present invention, the worker can selectively carry either a power tool or a non-power tool around him or her depending on the type of work the worker is performing. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side view of the torso of a worker wearing a tool holder according to an embodiment via a waist belt; [Figure 2] FIG. 3 is a three-view diagram of the engaging element. [Figure 3] FIG. [Figure 4] FIG. 2 is a two-sided view of the locking device. [Figure 5] 10 is a diagram showing a state in which an impact driver as a power tool is attached to the locking tool. FIG. [Figure 6] 10 is a diagram showing a state in which a carabiner is attached to the locking device as a tool hanging device for a non-power tool. FIG. [Figure 7] 10A to 10C are diagrams showing a procedure for locking a locking tool to a locked tool. [Figure 8] FIG. 1 is a diagram illustrating two separation prevention functions. [Figure 9] 10A and 10B are diagrams illustrating the difference in ease of release depending on whether the locking tool is swung forward or backward. [Figure 10] 1A and 1B are diagrams illustrating examples of fasteners of various shapes that are widely distributed and used. DETAILED DESCRIPTION OF THE INVENTION

[0011] An embodiment of the present invention will be described below with reference to the drawings. Note that the embodiment described below is for illustrative purposes only and does not limit the technical scope of the present invention. Therefore, a person skilled in the art may adopt an embodiment in which each of the following components is replaced with an equivalent, and such an embodiment is also within the technical scope of the present invention. In addition, in the following description, explanations of unimportant well-known technical matters will be omitted or simplified as appropriate to facilitate understanding of the present invention.

[0012] <Tool holder usage> 1 is a side view of the torso of a worker wearing the tool holder of this embodiment via a waist belt. Note that the directions of "up," "down," "front," "back," "left," and "right" shown in the following drawings correspond to the directions seen from the perspective of a worker who is properly wearing the tool holder configured for right-handed use as shown in FIG. 1.

[0013] As shown in FIG. 1 , the tool holder 1 of this embodiment is attached to a so-called safety belt 100 worn around the waist by a worker M, such as a construction worker, and detachably suspends a tool. The tool shown in the example is an impact driver 200, and the illustration shows the entire tool holder 1 behind it, partially visible. Since the impact driver 200 is typically held in the worker M's dominant arm, a right-handed worker M places the tool holder 1 on the right side of the waist belt 100, as shown in the example shown, and suspends the impact driver 200 upside down. This allows the worker M to hold the impact driver 200 on the waist belt 100 while keeping both hands free to perform other tasks. When using the impact driver 200, the tool holder 1 is removed from the waist belt 100 with the right hand (not shown). The tool holder 1 has a fastening element 2 attached to the tool and a fastening element 3 attached to the waist belt 100. That is, the operation of attaching and detaching the tool is the operation of locking the locking device 2 to the locked device 3 and then the operation of unlocking it.

[0014] <Tool holder components> FIG. 2 is a three-sided view of the lockable device 3, and FIG. 3 is an exploded perspective view of the lockable device 3. In FIGS. 2 and 3, the lockable device 3 has a lockable device main body 31 and a leaf spring 32. The lockable device main body 31 is made entirely from a thick, highly rigid steel plate, and each part is formed into an appropriate shape, bent, and welded together to form an integrated structure. The lockable device main body 31 has a generally rectangular shape that is long in the vertical direction, and belt holes 31a for passing the waist belt 100 are formed on both sides (front-to-back in the illustrated example). In addition, two guide walls 31b are provided on both edges (front-to-back in the illustrated example) of the surface of the lockable device main body 31 on the outward side (right side in the illustrated example) as seen from the operator, and are arranged parallel to each other and spaced apart by a predetermined distance. The lower ends of the two guide walls 31b are connected at their outer edges to form a rectangular cylindrical through-hole 31c that opens in the vertical direction. At the upper opening of this through-hole 31c, a notched groove 31d of an appropriate length is formed in the rear edge.

[0015] The leaf spring 32 is made of a thin elastic plate and is formed in a generally rectangular shape with a width slightly narrower than the gap between the two guide walls 31b, and is bent in a wave shape at four locations in the vertical direction. The leaf spring 32 is disposed between the two guide walls 31b, and the upper ends of the leaf spring 32 and the latched tool main body 31 are fixed to each other with two screws 33 as shown in the example. The lower side of the leaf spring 32 is inserted into the insertion hole 31c, and the bent apex 32a on the outer side of the lower side (the right side in the example shown) is bent relative to the fixed part at the upper end, allowing it to swing left and right.

[0016] 4 is a two-sided view of the fastener 2. The fastener 2 is made entirely of a thin elastic plate and is formed into a generally rectangular shape with a width roughly equal to the spacing between the two guide walls 31b. The fastener 2 is bent at three points in the longitudinal direction. Two of the bent points, which are located close to each other, are bent at angles slightly larger than a right angle, so that the entire fastener 2 is bent so that its upper end has a generally inverted ω-shaped cross section. The mounting plate portion 2a located on the outer side (the right side in the illustrated example) is vertically shorter than the insertion plate portion 2b located on the inner side (the left side in the illustrated example), and the lower end of the mounting plate portion 2a is formed with a claw portion 2c bent at a right angle toward the insertion plate portion 2b.

[0017] Two mounting holes 2d are formed in the mounting plate 2a, and a rectangular access hole 2e is formed in the insertion plate 2b for accessing the mounting holes 2d. For example, as shown in FIG. 5, the mounting plate 2a of the locking device 2 is attached to the impact driver 200 by fastening screws or bolts through the access holes 2e and the mounting holes 2d. Alternatively, instead of the impact driver 200, the user can attach a carabiner 300 to the mounting plate 2a of the locking device 2, as shown in FIG. 6. This allows the tool holder 1 of this embodiment to suspend not only the impact driver 200, which is a power tool, but also non-power tools such as hammers, wrenches, and spanners via the carabiner 300 (not shown). The carabiner 300 is an example of a tool suspender.

[0018] <Lock and unlock procedures> Figure 7 shows the procedure for locking the locking tool 2 to the locked tool 3. To avoid complexity, the locking tool 2 is shown without the impact driver 200 or carabiner 300 attached. Basically, the operation of locking the locking tool 2 to the locked tool 3 involves inserting only the insertion plate portion 2b of the locking tool 2 into the insertion hole 31c of the locked tool 3. Therefore, first, the lower end of the insertion plate portion 2b is brought close to the upper opening of the insertion hole 31c, as shown in Figure 7(a). At this time, the entire locking tool 2 is positioned between the two guide walls 31b in the front-to-rear direction.

[0019] Here, the upper opening of the insertion hole 31c on the side of the engaged tool 3 is closed by the lower end of the leaf spring 32. Therefore, to insert the insertion plate 2b into the insertion hole 31c, as shown in FIG. 7(b), it is necessary to insert the leaf spring 32 downward while pressing the bent apex 32a on the outer side (right side in the illustrated example) of the leaf spring 32 so as to bend it inward. Also, because the tip of the claw 2c is in contact with the surface of the insertion plate 2b and closes it, it is necessary to insert the insertion plate 2b while bending it open between the mounting plate 2a and the insertion plate 2b to create some gap between them. The right edge of the upper opening of the insertion hole 31c is formed with a bent edge 31e bent at an angle that makes it easy to fit between the claw 2c and the insertion plate 2b during the engagement operation.

[0020] In this manner, only the insertion plate portion 2b of the locking device 2 is inserted into the insertion hole 31c of the locked device 3, and the bent edge portion 31e of the insertion hole 31c is inserted between the insertion plate portion 2b and the mounting plate portion 2a, and when the entire locking device 2 is lowered completely downward, the state shown in Figure 7(c) is reached and the locking operation is completed.

[0021] In the locked state between the locking device 2 and the locked device 3 in the tool holder 1 of this embodiment, a two-stage anti-detachment function ensures a stable locked state, as shown in Fig. 8. That is, when the locking device 2 in the locked state is simply moved upward, as shown in Fig. 8(a), the folded corners of the locking device 2 in a generally inverted ω shape come into contact with the bent apex 32a on the outer side (the right side in the illustrated example) of the leaf spring 32, thereby primarily preventing the locking device 2 from detaching. Even if the leaf spring 32 is bent inward (the left side in the illustrated example) so that the folded corners of the locking device 2 overcome the bent apex 32a of the leaf spring 32, as shown in Fig. 8(b), the claw 2c of the mounting plate 2a engages with the right edge of the lower opening of the insertion hole 31c, thereby secondarily preventing the locking device 2 from detaching. To release this state, the attachment plate 2a and the insertion plate 2b are bent and opened to create a sufficient gap between the claw 2c and the surface of the insertion plate 2b, while being pulled upward. Note that the insertion hole 31c is an example of an inserted portion, the bent apex 32a on the outer side of the leaf spring 32 is an example of a primary separation prevention portion, and the claw 2c is an example of a secondary separation prevention portion.

[0022] As described above, the tool holder 1 of this embodiment reliably maintains the locked state between the locking device 2 and the locked device 3 through the two-stage anti-detachment function, but the release procedure is somewhat cumbersome to perform manually. In contrast, in this embodiment, as described above, the width of the leaf spring 32 in the front-to-rear direction is slightly shorter than the distance between the two guide walls 31b, and the leaf spring 32 is fixed between the two guide walls 31b with an offset toward the front. Furthermore, a notched groove 31d of an appropriate length is formed on the rear edge of the upper opening of the insertion hole 31c. This allows for easy asymmetric release of the locked state between the locking device 2 and the locked device 3 in the front-to-rear direction, as shown in FIG. 9 .

[0023] In other words, because there is a gap D between the leaf spring 32 and the rear guide plate 31b, there is no contact between the folded corner of the locking device 2 and the bent apex 32a of the leaf spring 32 at this gap D, weakening the above-mentioned primary release prevention function. Furthermore, the rear cutout 31d at the upper opening of the insertion hole 31c guides the insertion plate portion 2b to release rearward from the insertion hole 31c. Therefore, as shown in FIG. 9(a), even if the locking device 2 engaged with the locking device 3 and the attached tool 4 (see the elliptical dotted line in the figure) are swung rearward together, the locking state remains secured. However, as shown in FIG. 9(b), when the locking device 2 engaged with the locking device 3 and the attached tool 4 (see the elliptical dotted line in the figure) are swung forward together, the locking state is easily released.

[0024] Here, the tool holder 1 of this embodiment is designed for right-handed use, and even though a tool suspended on the right side of the worker M may be interfered with from the front and swing during normal work, it will not be interfered with from the rear and swing. Therefore, the locked state is maintained during normal work by the worker M, and the locking device 2 can be easily released from the locked device 3 only when the worker M intentionally swings the locking device 2 together with the suspended tool 4 to the front.

[0025] <Tool holder versatility> Furthermore, the locking device 2 of this embodiment is mainly composed of an insertion plate portion 2b, which is folded back at the top end to allow the bottom side to open, and an attachment plate portion 2a. Therefore, even without using the locking device 3, it is possible to use the locking device 2 by inserting the belt of the worker M's trousers or the waist belt 100 of a safety belt itself between the insertion plate portion 2b and the attachment plate portion 2a so that it is sandwiched in the thickness direction (not shown). Locking devices 2 attached to the tool with such a two-plate folded configuration, including those originally attached to the impact driver 200 as genuine products, are already widely distributed and used in various shapes, such as those illustrated in Figures 10(a) to 10(f). In contrast, if the spacing dimension between the two guide walls 31b of the locking device 3 of this embodiment is set sufficiently larger than the width dimension of these various locking devices 2, the locking device 3 can be highly versatile and applicable to many other locking devices 2.

[0026] <Effects of this embodiment> As described above, in the tool holder 1 of this embodiment, either the impact driver 200 or the carabiner 300 can be attached to the locking tool 2 that is locked to the locked tool 3.

[0027] Therefore, when worker M performs work using impact driver 200, he or she attaches impact driver 200 to locking tool 2 and then locks locking tool 2 to locked tool 3, allowing worker M to perform work while holding impact driver 200 close to him or her. When worker M performs work using a non-powered tool, he or she attaches carabiner 300, to which a non-powered tool can be attached, to locking tool 2 and then locks locking tool 2 to locked tool 3, allowing worker M to perform work while holding the non-powered tool close to him or her.

[0028] Furthermore, particularly in this embodiment, when the fastening device 2 is not fastened to the fastened device 3, the fastening device 2 is configured to be fastened to the belt 100 worn around the waist of the worker M with the carabiner 300 hanging therefrom. As a result, as a usage mode different from the mode of fastening to the fastened device 3 as described above, a non-power tool can be attached to the fastening device 2, and then the fastening device 2 can be fastened to the belt 100, so that the non-power tool can be kept close to the worker M.

[0029] Furthermore, in this embodiment in particular, the bent apex 32a on the outer side of the leaf spring 32 functions as a primary separation prevention part that allows the locking device 2 to be locked to the locked device 3 and, after the locking, primarily prevents the locking device 2 from separating from the locked device 3. Furthermore, the claw part 2c of the locking device 2 functions as a secondary separation prevention part that secondarily prevents the locking device 2 from separating from the locked device 3 when the separation prevention function of the primary separation prevention part is overcome. In this way, by providing two separation prevention functions as a double fail-safe, it is possible to reliably prevent disengagement in two stages.

[0030] In particular, in this embodiment, the outer bent apex 32a of the leaf spring 32 serving as the primary separation prevention portion is provided on the locked item 3, and the claw portion 2c serving as the secondary separation prevention portion is provided on the locking item 2. This allows the two retention functions to be shared and reliably performed by the locked item 3 side and the locking item 2 side.

[0031] Furthermore, particularly in this embodiment, the locked device 3 has an insertion hole 31c through which the locking device 2 is inserted, and a leaf spring 32 that is provided above the insertion hole 31c and has a bent apex 32a at its lower end that can abut against the upper end of the locking device 2 inserted into the insertion hole 31c, and the locking device 2 has a claw portion 2c that is located below the insertion hole 31c when inserted into the insertion hole 31c, the primary release prevention portion is the bent apex 32a at the lower end of the leaf spring portion 32, and the secondary release prevention portion is the claw portion 2c of the locking device 2 that abuts against the lower edge of the insertion hole 31a of the locked device 3 when the leaf spring 32 is bent and the upper end of the locking device 2 breaks through the release prevention function of the primary release prevention portion and escapes upward without abutting against the bent apex 32a of the leaf spring portion 32. This allows the differently configured separation prevention functions to function in two stages in cooperation, making it suitable as a double fail-safe that prevents separation in two stages.

[0032] Furthermore, in this embodiment in particular, the locking device 2 is configured so that, by bending the locking device 2, the claw portion 2c breaks through the detachment prevention function of the secondary detachment prevention part without coming into contact with the lower edge of the insertion hole 31a, and the locking device 2 can escape upward. This allows the worker M to grasp the tool 4 attached to the locking device 2 and easily flex the locking device 2 without looking at the locking device 2, thereby disengaging the detachment prevention function of the secondary detachment prevention part.

[0033] In particular, in this embodiment, the upper end of the fastener 2 has a substantially inverted ω-shaped cross section. As a result, compared to a cross section that is simply bent into a round shape with a large radius of curvature, the ω-shape prevents a decrease in elasticity no matter how many times it is used.

[0034] The above-described procedures for the locking and unlocking operations are merely examples, and at least some of the procedures may be deleted or changed, or other procedures may be added. Furthermore, the order of at least some of the procedures may be changed, or multiple procedures may be combined into a single procedure.

[0035] The above-described steps are merely examples, and at least some of the steps may be deleted or changed, or other steps may be added. Furthermore, the order of at least some of the steps may be changed, or multiple steps may be combined into a single step.

[0036] In the above description, when the external dimensions or sizes are described as "same," "equal," or "different," these descriptions are not in their strict sense. In other words, "same," "equal," and "different" mean "substantially the same," "substantially equal," or "substantially different," allowing for design and manufacturing tolerances and errors.

[0037] In addition to the above, the methods according to the above embodiments and modifications may be used in appropriate combination.

[0038] Although not specifically illustrated, the present invention can be implemented with various modifications within the scope of the invention. [Explanation of symbols]

[0039] 1 Tool Holder 2 Locking device 3 Locked tool 4 Tools 2a Mounting plate 2b Insertion plate part 2c Claw (secondary separation prevention part) 2d mounting holes 2e access hole 31 Locked tool body 31a belt hole 31b Guide Wall 31c Insertion hole (inserted part) 31d Cutting groove 31e bent edge 32 Leaf spring 32a Bent top (primary separation prevention part) 33 Bis 100 Belt 200 Impact driver (power tool) 300 Carabiner (Tool Hanging Device) M worker

Claims

1. a locking device that is configured to be attachable to both a power tool machine and a tool hanging device for hanging a non-power tool, and that can be selectively attached to either the power tool machine or the tool hanging device; a locked object to which the locking object is locked; A tool holder having

2. 2. The tool holder according to claim 1, The locking device is When the tool suspending tool is not engaged with the suspending tool, the tool suspending tool can be engaged with a belt worn around the waist of a worker. A tool holder characterized by:

3. The tool holder according to claim 1 or 2, a primary release prevention portion that allows the fastening tool to be locked to the locked tool and, after the locking, temporarily prevents the fastening tool from being released from the locked tool; a secondary separation prevention part for secondarily preventing separation of the fastening tool from the fastened tool when the separation prevention function of the primary separation prevention part is overcome; A tool holder comprising:

4. The tool holder according to claim 3, The primary separation prevention unit is The engaging member is provided with The secondary separation prevention unit is The fastener is provided A tool holder characterized by:

5. The tool holder according to claim 4, The engaging member is an insertion portion through which the locking tool is inserted; a leaf spring portion provided above the insertion portion, the leaf spring portion having a lower end capable of abutting against an upper end of the locking device inserted into the insertion portion; and The locking device is a claw portion located below the inserted portion when the claw portion is inserted into the inserted portion; The primary separation prevention unit is the lower end of the leaf spring portion, The secondary separation prevention unit is When the leaf spring portion is bent and the upper end portion of the locking device escapes upward without coming into contact with the lower end portion of the leaf spring portion, the claw portion of the locking device comes into contact with the lower edge portion of the inserted portion of the locked device. A tool holder characterized by:

6. 6. The tool holder according to claim 5, When the locking tool is bent, the claw portion overcomes the separation prevention function of the secondary separation prevention portion without coming into contact with the lower edge portion of the inserted portion, and the locking tool is configured to be able to escape upward. A tool holder characterized by:

7. 6. The tool holder according to claim 5, The upper end of the fastener is Has a roughly inverted ω cross section A tool holder characterized by:

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