Tool, tool cover, and tool engagement body

Abstract

To provide a tool attached with a hook which may hook on an object to be engaged (an engaged object) while adapting to various use forms by users.SOLUTION: A reinforcing-bar binding machine 1A which is one example of a tool includes: a body part 10; a handle part 10H; and a plurality of hook attachment parts 12 which are respectively provided directed to a centroid G of the reinforcing-bar binding machine 1A at different angles and may engage with an engaged object. When a hook 11 is attached to the hook attachment part 12, an engaged part 11a is directed to the centroid G. The hook attachment parts 12 are provided at a cover 15 which may be attached to or detached from the body part 10.SELECTED DRAWING: Figure 1A

Description

Technical Field

[0001] The present invention relates to a tool to which a hook that can be hooked on an object to be locked is attached, and a cover that is attached to the object to be locked and is detachable from the tool.

Background Art

[0002] Some tools that are held by hand and used, such as a rebar tying machine, a nail gun, a drilling machine, and a screwdriver, are equipped with a hook that can hook the tool on an object to be locked.

[0003] Patent Document 1 describes a tying machine provided with a tying portion for tying a wire at the front end in the longitudinal direction, a main body portion for housing a driving portion for driving the tying portion inside, a housing portion provided on the lower surface side of the main body portion for housing the wire so as to be able to feed it out, a gripping portion provided on the lower surface side of the main body portion and behind the housing portion, a first hook attachment portion located on the upper surface side of the main body portion and having an openable hook attachable thereto, and a second hook attachment portion located on the side surface side of the main body portion and having an openable hook attachable thereto. The first hook attachment portion has the hook attached so that the opening of the hook faces the front side in the longitudinal direction of the main body portion, and the second hook attachment portion has the hook attached so that the opening of the hook faces the center of gravity of the tying machine.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, at a work site where reinforcement work such as reinforcing walls and columns is carried out, or where binding work is carried out to bind the reinforced bars with wires, it is more advantageous in terms of work efficiency to hook the tools such as a wire tying machine that is not temporarily used on the reinforced bars rather than placing them on the scaffold when moving on to the next binding work etc.

[0006] In the tying machine described in Patent Document 1, the hook attached to the second hook attachment portion has the opening of the hook facing the center of gravity of the tying machine. As a result, when the tying machine is hooked on the reinforcing bar using this hook, even if the hand is released from the tying machine, the orientation of the tying machine does not change significantly.

[0007] However, when the user of the tying machine hooks the tying machine on the reinforcing bar using the hook and then grasps and uses the tying machine again, the ways of using the tool vary depending on the user, and it is necessary to be able to cope with various usage forms for each user.

[0008] The present invention has been made to solve such problems, and an object thereof is to provide a tool to which a hook capable of being hooked on a locking object is attached, and a cover that is detachably attached to the tool and to which a hook capable of being hooked on a locking object is attached, corresponding to various usage forms for each user.

Means for Solving the Problems

[0009] In order to solve the above-described problems, the present invention is a tool having a main body portion and a gripping portion connected to the main body portion, and includes a locking portion provided at different angles toward the center of gravity of the tool and capable of locking a locking object, and the locking portion is a tool provided on the main body portion.

[0010] Further, the present invention is a cover detachably attached to a tool having a main body portion and a gripping portion connected to the main body portion, and includes a locking portion provided at different angles toward the center of gravity of the tool and capable of locking a locking object, and the locking portion is a tool cover provided on the cover.

[0011] Furthermore, in the present invention, in a tool having a main body portion and a gripping portion connected to the main body portion, a locking portion provided on the main body portion and capable of locking a locking target via a locking body, the locking body is a locking body for a tool that can be attached toward the center of gravity of the tool. Also, in a cover detachably attached to a tool having a main body portion and a gripping portion connected to the main body portion, for a locking portion provided on the cover and capable of locking a locking target via a locking body, the locking body is a locking body for a tool that can be attached toward the center of gravity of the tool.

[0012] In the present invention, a locking body capable of locking a locking target is attached at different angles toward the center of gravity of the tool.

Advantages of the Invention

[0013] In the present invention, corresponding to various usage forms for each user, a locking body that can be hooked onto a locking target can be attached at different angles toward the center of gravity of the tool.

[0014] Also, the cover of the present invention can be attached to an existing tool, and for the existing tool, corresponding to various usage forms for each user, a locking body that can be hooked onto a locking target can be attached at different angles toward the center of gravity of the tool.

Brief Description of the Drawings

[0015]

Figure 1A

Figure 1B

Figure 2A

Figure 2B

Figure 3

Figure 4

Figure 5

Figure 6A

Figure 6B

Figure 6C

Figure 6D

Figure 7A

Figure 7B

Figure 8

Figure 9

Figure 10A

Figure 10B

Figure 11A

Figure 11B

Figure 12A

Figure 12B

Figure 13

Figure 14A

Figure 14B

Figure 15

Embodiments for Carrying Out the Invention

[0016] Hereinafter, with reference to the drawings, an example of a reinforcing bar tying machine as an embodiment of the tool of the present invention, an example of a tool cover attached to the reinforcing bar tying machine, and an example of a tool locking body will be described.

[0017] <Configuration example of the reinforcing bar tying machine of the present embodiment> FIG. 1A is a side view seen from one side showing an example of the reinforcing bar tying machine of the present embodiment, and FIG. 1B is a perspective view seen from one side showing an example of the reinforcing bar tying machine of the present embodiment. Further, FIG. 2A is a side view seen from the other side showing an example of the reinforcing bar tying machine of the present embodiment, and FIG. 2B is a perspective view seen from the other side showing an example of the reinforcing bar tying machine of the present embodiment.

[0018] The reinforcing bar tying machine 1A is in a form that can be held and used by an operator, and includes a main body portion 10 and a handle portion 10H as an example of a gripping portion connected to the main body portion 10.

[0019] On one side along the extending direction of the main body portion 10 indicated by the arrow B, a working portion 10W for performing an operation of tying a reinforcing bar S as a work object is formed on the reinforcing bar tying machine 1A. The reinforcing bar tying machine 1A refers to the side on which the working portion 10W is formed as the front side with respect to the extending direction of the main body portion 10, and the other side opposite to the side on which the working portion 10W is formed as the rear side.

[0020] Further, the handle portion 10H extends in a direction intersecting the extending direction of the main body portion 10 of the reinforcing bar tying machine 1A. That is, in the reinforcing bar tying machine 1A, the extending direction of the handle portion 10H indicated by the arrow C intersects the extending direction of the main body portion 10. The reinforcing bar tying machine 1A refers to the side on which the handle portion 10H is formed as the lower side (one side), and the other side opposite to the side on which the handle portion 10H is formed as the upper side (the other side).

[0021] The reinforcing bar tying machine 1A has a locking part that can lock an object to be locked, such as a reinforcing bar S. The locking part can directly or indirectly lock the object to be locked. In this embodiment, a form in which the object to be locked can be indirectly locked is shown, and the locking part is attached with a hook 11 that can hook the reinforcing bar tying machine 1A on the reinforcing bar S. The hook 11 is an example of a locking body and a locking body for tools, and is provided with a locked part 11a that can be locked to the reinforcing bar S at the end in the extending direction of the hook 11 indicated by the arrow D.

[0022] The reinforcing bar tying machine 1A includes a plurality of hook attachment parts 12 provided at different angles toward the center of gravity G of the reinforcing bar tying machine 1A. The hook attachment part 12 is an example of a locking part, and the hook 11 can be attached at different angles toward the center of gravity G of the reinforcing bar tying machine 1A. In the above, being attachable at different angles means that the locking body is fixedly attached to the locking part at a predetermined angle. Also, being fixed means that there may be some relative displacement, and it is shown that it is fixed to such an extent that it does not affect the locking.

[0023] The hook attachment part 12 is preferably provided on at least one side surface on the rear side of the main body part 10. The side surface here refers to a surface parallel to the extending direction of the main body part 10. Preferably, when the hook attachment part 12 is provided on the side surface of the main body part 10, that is, when it is arranged at a position farther from the handle part 10H, it is difficult for the hand of the operator holding the handle part 10H to come into contact with the reinforcing bar S as the object to be locked. The hook attachment part 12 provided on the side surface of the main body part 10 is preferably such that the hook 11 is attached so that the locked part 11a faces the center of gravity G of the reinforcing bar tying machine 1A when the reinforcing bar tying machine 1A is viewed from the side. In a configuration including a plurality of hook attachment parts 12, at least one hook attachment part 12 is preferably such that the hook 11 is attached so that the locked part 11a faces the center of gravity G of the reinforcing bar tying machine 1A when the reinforcing bar tying machine 1A is viewed from the side.

[0024] The hook attachment part 12 may be configured such that the extending direction of the hook 11 intersects with the extending direction of the handle part 10H. In a configuration including a plurality of hook attachment parts 12, at least one hook attachment part 12 may be configured such that the extending direction of the hook 11 intersects with the extending direction of the handle part 10H.

[0025] Also, the hook 11 may be attached to the hook attachment part 12 such that the engaged part 11a is positioned on the rear side in the extending direction with respect to the extension line of the extending direction of the handle part 10H. Further, the hook 11 may be attached to the hook attachment part 12 such that at least a part of the engaged part 11a is positioned on the rear side of the rear end Bp of the main body part 10. In a configuration including a plurality of hook attachment parts 12, at least one hook attachment part 12 may be configured such that at least a part of the engaged part 11a is positioned on the rear side of the rear end Bp of the main body part 10.

[0026] FIG. 3 is a perspective view showing an example of the hook. The hook 11 includes a supported part 11b that can be fixedly supported by the hook attachment part 12, an extending part 11c having a predetermined dimension connecting the supported part 11b and the engaged part 11a, and an engaged convex part 11d that suppresses the hook 11 from coming off the object to be locked.

[0027] The extending part 11c of the hook 11 extends from the supported part 11b. The engaged part 11a is formed at the top of the extending part 11c. The engaged convex part 11d extends from the engaged part 11a along the extending part 11c in the direction of the supported part 11b. An opening is formed between the engaged convex part 11d and the extending part 11c of the hook 11 with a dimension that allows an object to be locked, such as a reinforcing bar S, to be inserted.

[0028] The extension part 11c includes a first extension part 11c1 and a second extension part 11c2 in this example. The first extension part 11c1 and the second extension part 11c2 extend parallel to each other. Further, the locked part 11a includes a first locked part 11a1 and a second locked part 11a2 in this example. The first locked part 11a1 is connected to the first extension part 11c1, and the second locked part 11a2 is connected to the second extension part 11c2. For the hook 11, the direction in which the first locked part 11a1 and the second locked part 11a2 are arranged is orthogonal to the extending direction of the hook 11. Note that the direction in which the first locked part 11a1 and the second locked part 11a2 are arranged and the extending direction of the hook 11 do not have to be orthogonal as long as they can be locked to the object to be locked.

[0029] The supported part 11b includes a fastening part 11e to which the screw 14 is fastened. The fastening part 11e is an example of a fixing part and is constituted by a female screw penetrating the plate-shaped supported part 11b in this example. The hook 11 may include a plurality of fastening parts 11e in order to be fixed to the hook mounting part 12 with a plurality of screws 14. The supported part 11b includes two fastening parts 11e in this example. Note that regarding the support shape, the number of fastening locations, the positions, and the support means (fastening) may be appropriately changed as long as they can be locked to the object to be locked.

[0030] FIG. 4 is a perspective view showing an example of a hook mounting part. The hook mounting part 12 includes a support part 12a capable of supporting the supported part 11b and a hole part 12b into which the screw 14 is inserted.

[0031] The support part 12a has a predetermined shape conforming to the outer shape of the supported part 11b and is constituted by a concave part or the like into which the supported part 11b can be inserted. Thereby, the support part 12a is configured such that the mounting position, the orientation, etc. of the hook 11 can be defined when the supported part 11b is inserted. Further, when fixing the hook 11, the supported part 11b is arranged in a state of being inserted into the support part 12a, and since the hole part 12b1 and the fastening part 11e can be fixed, the hook does not deviate greatly from the fixed position, and it is easy to fix the hook 11 to the hook mounting part 12. The orientation of the hook 11 is the orientation of the extending direction of the hook 11, that is, the orientation of the extending direction of the extension part 11c.

[0032] The hole portion 12b is provided in the support portion 12a in an arrangement corresponding to the fastening portion 11e of the hook 11. The hook attachment portion 12 may include a plurality of hole portions 12b in order to define the orientation of the hook 11. Further, the hook attachment portion 12 may include hole portions 12b in a plurality of rows in order to make the attachment position of the hook 11 variable. In this example, the hook attachment portion 12 is provided with two hole portions 12d corresponding to the arrangement of the two fastening portions 11e in two rows with a predetermined interval therebetween.

[0033] In this example, the rebar tying machine 1A is provided with hook attachment portions 12L1, 12L2, 12L3, 12R1, 12R2, and 12R3 at three locations on each of the two side surfaces of the main body portion 10. Further, the rebar tying machine 1A is provided with a hook attachment portion 12U at one location on the upper surface of the main body portion 10.

[0034] When the hook 11 is attached to the hook attachment portions 12L1, 12L2, 12L3, 12R1, 12R2, and 12R3, the shape, orientation, etc. of the support portion 12a and the hole portion 12b are defined so that the locked portion 11a faces the direction of the center of gravity G of the rebar tying machine 1A when viewed from the side.

[0035] Each hook attachment portion 12 may be configured to be provided on a cover 15 that can be attached to and detached from the rebar tying machine 1A.

[0036] FIG. 5 is an exploded perspective view of a disassembled cover showing an example of the rebar tying machine according to the present embodiment, and FIGS. 6A, 6B, 6C, and 6D are perspective views showing an example of the cover. Further, FIG. 7A is a side view of a state in which a hook showing an example of the rebar tying machine according to the present embodiment is not attached, viewed from one side, and FIG. 7B is a cross-sectional view taken along line A-A of FIG. 7A. Furthermore, FIG. 8 is a perspective view of a rebar tying machine showing an example of a method of attaching a hook.

[0037] The cover 15 is an example of a tool cover and includes a first cover portion 15L and a second cover portion 15R. The first cover portion 15L is configured in a shape that covers one side surface on the rear side of the main body portion 10, and the second cover portion 15R is configured in a shape that covers the other side surface on the rear side of the main body portion 10.

[0038] The first cover portion 15L includes a positioning portion 15La on the inner surface facing one side surface of the main body portion 10. Further, the second cover portion 15R includes a positioning portion 15Ra on the inner surface facing the other side surface of the main body portion 10.

[0039] Due to the relationship of the internal configuration, the design relationship, and the need to integrate a plurality of members by screwing, the main body portion 10 has concavities and convexities in its outer shape, and a concavity and convexity portion 10La is formed on one side surface. Similarly, the main body portion 10 has a concavity and convexity portion 10Ra formed on the other side surface.

[0040] The positioning portion 15La is configured with a concavity and convexity shape that matches the concavity and convexity portion 10La on one side surface of the main body portion 10. The positioning portion 15Ra is configured with a concavity and convexity shape that matches the concavity and convexity portion 10Ra on the other side surface of the main body portion 10.

[0041] The first cover portion 15L includes a hole portion 15Lb into which the screw 16 is inserted. The second cover portion 15R includes a fastening portion 15Rb to which the screw 16 is fastened. The screw 16, the hole portion 15Lb, and the fastening portion 15Rb are an example of a connecting portion.

[0042] The first cover portion 15L covers one side surface on the rear side of the main body portion 10 in a state where the position with respect to the main body portion 10 is defined by aligning the positioning portion 15La with the concavity and convexity portion 10La of the main body portion 10. Further, the second cover portion 15R covers one side surface on the rear side of the main body portion 10 in a state where the position with respect to the main body portion 10 is defined by aligning the positioning portion 15Ra with the concavity and convexity portion 10Ra of the main body portion 10.

[0043] The cover 15 covers one side surface of the steel bar tying machine 1A with the first cover part 15L and the other side surface of the steel bar tying machine 1A with the second cover part 15R, so that the positions of the hole part 15Lb and the fastening part 15Rb are aligned. Then, the cover 15 is fixed to the steel bar tying machine 1A by the screw 16 inserted into the hole part 15Lb being fastened to the fastening part 15Rb, and the first cover part 15L and the second cover part 15R are integrated.

[0044] For the cover 15, the positioning part 15La of the first cover part 15L fits into the uneven part 10La on one side surface of the main body part 10, and the positioning part 15Ra of the second cover part 15R fits into the uneven part 10Ra on the other side surface of the main body part 10. Thereby, the cover 15 is prevented from moving inadvertently with respect to the steel bar tying machine 1A and being removed inadvertently from the steel bar tying machine 1A.

[0045] Also, for the cover 15, the positioning parts 15La and 15Ra are formed on the first cover part 15L and the second cover part 15R in accordance with the outer shape of the main body part 10 of the existing steel bar tying machine 1A. Thereby, the hook attachment part 12 can be provided by using the cover 15 for an existing steel bar tying machine 1A not provided with the hook attachment part 12.

[0046] Furthermore, the cover 15 covers the main body part 10 with the handle part 10H exposed. Thereby, it is suppressed that the cover 15 becomes an obstacle to gripping when gripping the handle part 10H. In the steel bar tying machine 1A, in this example, an operation part 9 described later is provided at the rear end of the main body part 10. For this reason, the cover 15 has a shape with an open rear end so that the operation part 9 is exposed.

[0047] To attach the hook 11 to the hook attachment part 12, the supported part 11b of the hook 11 is inserted into the support part 12a. When the supported part 11b of the hook 11 is inserted into the support part 12a, the orientation of the hook 11 with respect to the main body part 10 is defined by the shapes of the support part 12a and the supported part 11b and the like.

[0048] Further, the hook 11 is fixed to the hook mounting portion 12 in a state where the direction with respect to the main body portion 10 is defined by aligning the position of the fastening portion 11e with the hole portion 12b and fastening the screw 14 inserted into the hole portion 12b to the fastening portion 11e.

[0049] Furthermore, the hook 11 aligns the position of the fastening portion 11e with the hole portion 12b1 in the first row or the hole portion 12b2 in the second row, and by fastening the screw 14 inserted into the hole portion 12b to the fastening portion 11e, the position of the engaged portion 11a along the extending direction of the hook 11 is switched.

[0050] FIG. 9 is an internal configuration diagram seen from the side showing an example of the overall configuration of the steel bar bundling machine according to the present embodiment. The steel bar bundling machine 1A feeds the wire W in the positive direction indicated by the arrow F, winds it around the steel bar S which is the object to be bundled, sends the wire W wound around the steel bar S in the reverse direction indicated by the arrow R and winds it around the steel bar S, then twists the wire W to bundle the steel bar S with the wire W. The steel bar bundling machine 1A bundles the steel bar S with a plurality of wires W, in this example, two wires W. Note that the steel bar bundling machine 1A may be configured to bundle the steel bar S with one wire W.

[0051] In order to realize the above-described functions, the steel bar bundling machine 1A includes a magazine 2 that houses the wire W, a wire feeding portion 3 that feeds the wire W, and a wire guide 4 that guides the wire W sent to the wire feeding portion 3. Further, the steel bar bundling machine 1A includes a curl forming portion 5 that forms an annular feeding path for winding the wire W sent by the wire feeding portion 3 around the steel bar S, and a cutting portion 6 that cuts the wire W wound around the steel bar S. Furthermore, the steel bar bundling machine 1A includes a bundling portion 7 that twists the wire W wound around the steel bar S, and a driving portion 8 that drives the bundling portion 7. Also, the steel bar bundling machine 1A includes an operation portion 9 that can set the magnitude of the bundling force for twisting and bundling the wire W.

[0052] The magazine 2 is an example of a storage section, in which a reel 20 around which a long wire W is wound in a rewoundable manner rotates and is removably stored. The wire W is an example of a consumable. The wire W is a wire made of a metal wire capable of plastic deformation, a wire in which the metal wire is coated with resin, or a stranded wire. In a configuration where two wires W are used to bind a reinforcing bar S, the reel 20 has two wires W wound thereon and is configured to be able to draw out the two wires W from the reel 20 simultaneously.

[0053] The wire feed section 3 includes a pair of feed gears 30 that sandwich and feed the wire W. In the wire feed section 3, the rotational operation of a feed motor (not shown) is transmitted to the feed gears 30, causing the feed gears 30 to rotate. Also, the wire feed section 3 can switch the forward and reverse directions of the rotational direction of the feed motor (not shown), thereby switching the rotational direction of the feed gears 30 and the forward and reverse directions of the feed direction of the wire W. In a configuration where two wires W are used to bind a reinforcing bar S, the wire feed section 3 feeds the two wires W side by side in the radial direction of the wire W.

[0054] The wire guide 4 is disposed on the upstream side of the feed gears 30 and on the downstream side (not shown) with respect to the feed direction of the wire W fed in the forward direction. In a configuration where two wires W are used to bind a reinforcing bar S, the wire guide 4 aligns the two incoming wires W in parallel along the direction in which the pair of feed gears 30 are arranged and guides them between the pair of feed gears 30.

[0055] The curl forming section 5 includes a curl guide 50 that imparts a curl to the wire W fed by the wire feed section 3, and a guide guide 51 that guides the wire W with a curl imparted by the curl guide 50 to the binding section 7. The curl forming section 5 forms an annular feed path Ru as shown by a two-dot chain line that passes through the guide guide 51 from the curl guide 50 and reaches the binding section 7 by imparting a curl to the wire W fed by the wire feed section 3 and passing through the curl guide 50.

[0056] The cutting part 6 includes a fixed blade part 60, a movable blade part 61 that cuts the wire W in cooperation with the fixed blade part 60, and a transmission mechanism 62 that transmits the operation of the binding part 7 to the movable blade part 61. The cutting part 6 cuts the wire W by the rotational movement of the movable blade part 61 with the fixed blade part 60 as the fulcrum shaft.

[0057] The binding part 7 includes a wire locking body 70 to which the wire W is locked and a sleeve 71 that actuates the wire locking body 70. The drive part 8 includes a torsion motor 80 and a speed reducer 81 that performs speed reduction and torque amplification.

[0058] In the steel bar tying machine 1A, the curl guide 50 and the guide guide 51 of the curl forming part 5 described above are provided at the front end of the main body part 10. The curl forming part 5 constitutes the working part 10W.

[0059] In the steel bar tying machine 1A, a trigger 10T is provided on the front side of the handle part 10H, and a switch 10S is provided inside the handle part 10H. The steel bar tying machine 1A controls the feed motor and the torsion motor 80 according to the state of the switch 10S pushed by the operation of the trigger 10T by a control part (not shown).

[0060] The steel bar tying machine 1A includes a battery mounting part 10B at the lower part of the handle part 10H. The battery 100 is detachably mounted on the battery mounting part 10B.

[0061] In the steel bar tying machine 1A, a magazine 2 is provided in front of the handle part 10H. Also, in the steel bar tying machine 1A, the above-described wire feeding part 3, cutting part 6, binding part 7, drive part 8 that drives the binding part 7, etc. are housed in the main body part 10. The torsion motor 80 is housed on the rear end side inside the main body part 10.

[0062] The operation part 9 includes an operation dial 90 and the like. The operation part 9 is provided at the rear end of the main body part 10.

[0063] The center of gravity G of the wire tying machine 1A is the center of gravity in the equipped state where the reel 20 around which the wire W is wound is accommodated in the magazine 2 and the battery 100 is attached to the battery attachment portion 10B, considering the use of the wire tying machine 1A. The center of gravity G shown in FIG. 1A and the like is the position of the center of gravity in the state where the reel 20 around which a predetermined amount of the wire W is wound is stored in the magazine 2. Since the wire W is consumed in the operation of tying the reinforcing bar S by the wire tying machine 1A, the amount of the wire W wound around the reel 20 decreases. Therefore, although the weight of the reel 20 changes, the center of gravity G of the wire tying machine 1A is approximately located between the handle portion 10H and the magazine 2.

[0064] <Example of usage form of hook> FIGS. 10A and 10B are explanatory diagrams showing an example of the usage form of the hook. As shown in FIGS. 2A and 2B, when the hook 11 is attached to the hook attachment portion 12R1, the extending direction of the hook 11 intersects the extending direction of the handle portion 10H, and the engaged portion 11a is located behind the extension line of the extending direction of the handle portion 10H and behind the rear end Bp of the main body portion 10. Further, when the wire tying machine 1A is viewed from the side, the engaged portion 11a faces the center of gravity G of the wire tying machine 1A.

[0065] Consider the operation of hooking the wire tying machine 1A to the reinforcing bar S using the hook 11 when the arrangement surface of the reinforcing bar S stands in the vertical direction.

[0066] The wire tying machine 1A is used in a form in which the handle portion 10H is held by hand and the trigger 10T is operated with the fingers of the hand holding the handle portion 10H. For this reason, the user of the wire tying machine 1A extends the arm from the rear side of the main body portion 10 and holds the handle portion 10H.

[0067] When the user holds the handle portion 10H with the right hand, in the operation of hooking the hook 11 on the reinforcing bar S extending in the lateral direction, the user will view the wire bundling machine 1A from the left side which is the side shown in FIG. 10A etc. When the hook 11 is attached to the hook attachment portion 12R1, the hook 11 is attached to the side surface opposite to the visible side surface of the main body portion 10. However, since the locked portion 11a is located on the rear side of the rear end Bp of the main body portion 10, the user can visually recognize the locked portion 11a even when viewing the wire bundling machine 1A from the left side which is the side shown in FIG. 10A etc. Thereby, it is possible to easily and surely align the locked portion 11a with the position of the reinforcing bar S.

[0068] Further, since the extending direction of the hook 11 intersects the extending direction of the handle portion 10H, the hook 11 can be hooked on the reinforcing bar S without greatly changing the orientation of the wrist.

[0069] Furthermore, since the locked portion 11a faces the center of gravity G of the wire bundling machine 1A, when the hook 11 is hooked on the reinforcing bar S and the hand is released from the handle portion 10H, the orientation of the wire bundling machine 1A does not change significantly. Thereby, the wire bundling machine 1A can be surely hooked on the reinforcing bar S by using the hook 11. Also, when gripping the handle portion 10H again, it is not necessary to greatly change the orientation of the wrist. Thereby, it is possible to correspond to various usage forms for each user.

[0070] The hook 11 is fixed to the hook attachment portion 12 by a screw 14 which is another fixing portion, in a state where the orientation with respect to the main body portion 10 is defined by the shapes of the support portion 12a and the supported portion 11b etc. By fixing the hook 11 to the hook attachment portion 12 with at least two fixing portions in this way, it is possible to suppress the orientation from changing inadvertently.

[0071] Note that the cover 15 is made of resin and the hook 11 is made of metal.

[0072] FIG. 11A, FIG. 11B, FIG. 12A, and FIG. 12B are side views of a reinforcing bar tying machine showing attachment examples of hooks. FIGS. 11A and 11B are side views of the reinforcing bar tying machine 1A seen from one side, and FIGS. 12A and 12B are side views of the reinforcing bar tying machine 1A seen from the other side.

[0073] In FIG. 11A, the hook 11 is attached to the hook attachment portion 12L2. The hook 11 attached to the hook attachment portion 12L2 is attached to the main body portion 10 via the cover 15 at different angles toward the center of gravity G of the reinforcing bar tying machine 1A when the reinforcing bar tying machine 1A is viewed from the side, as compared with the hook 11 attached to the hook attachment portion 12L1. The hook 11 attached to the hook attachment portion 12L2 has the engaged portion 11a facing the center of gravity G when the reinforcing bar tying machine 1A is viewed from the side.

[0074] In FIG. 11B, the hook 11 is attached to the hook attachment portion 12L3. The hook 11 attached to the hook attachment portion 12L3 is attached to the main body portion 10 via the cover 15 at different angles toward the center of gravity G of the reinforcing bar tying machine 1A when the reinforcing bar tying machine 1A is viewed from the side, as compared with the hook 11 attached to the hook attachment portion 12L1 and the hook 11 attached to the hook attachment portion 12L2. The hook 11 attached to the hook attachment portion 12L3 has the engaged portion 11a facing the center of gravity G when the reinforcing bar tying machine 1A is viewed from the side.

[0075] In FIG. 12A, the hook 11 is attached to the hook attachment portion 12R2. The hook 11 attached to the hook attachment portion 12R2 is attached to the main body portion 10 via the cover 15 at different angles toward the center of gravity G of the reinforcing bar tying machine 1A when the reinforcing bar tying machine 1A is viewed from the side, as compared with the hook 11 attached to the hook attachment portion 12R1. The hook 11 attached to the hook attachment portion 12R2 has the engaged portion 11a facing the center of gravity G when the reinforcing bar tying machine 1A is viewed from the side.

[0076] In FIG. 12B, the hook 11 is attached to the hook attachment portion 12R3. The hook 11 attached to the hook attachment portion 12R3 is attached to the main body portion 10 via the cover 15 at different angles toward the center of gravity G of the rebar tying machine 1A when the rebar tying machine 1A is viewed from the side, as compared with the hook 11 attached to the hook attachment portion 12R1 and the hook 11 attached to the hook attachment portion 12R2. When the rebar tying machine 1A is viewed from the side, the engaged portion 11a of the hook 11 attached to the hook attachment portion 12R3 faces the center of gravity G.

[0077] FIG. 13 is a top view of a rebar tying machine showing an example of attachment of a hook. In FIG. 13, the hook 11 is attached to the hook attachment portion 12U. The hook 11 attached to the hook attachment portion 12U is attached to the main body portion 10 via the cover 15 at different angles toward the center of gravity G of the rebar tying machine 1A, as compared with the hooks 11 attached to the other hook attachment portions 12.

[0078] FIGS. 14A and 14B are explanatory views showing other examples of the usage form of the hook. As shown in FIG. 13, when the hook 11 is attached to the hook attachment portion 12U, the engaged portion 10a does not face the center of gravity G of the rebar tying machine 1A. However, when the hook 11 attached to the hook attachment portion 12U is hooked on the rebar S, the upper surface of the main body portion 10 comes into contact with the rebar S, and the orientation of the rebar tying machine 1A does not change significantly even when the hand is released from the handle portion 10H. At this time, the handle portion 10H extends in a direction intersecting the laying surface of the rebar S. Thereby, it is possible to correspond to various usage forms for each user.

[0079] Note that although the plurality of hook attachment portions 12 have been described as having the hole portions 12b formed therein, the hole portions 12b may be arranged so as to be commonly usable by the plurality of hook attachment portions 12.

[0080] <Other configuration examples of the rebar tying machine according to the present embodiment> FIG. 15 is a view showing another example of a hook as a locking body. A hook 21 as a locking body includes a supported portion 21b that can be directed to a hook attachment portion 12, an extension portion 21c having a predetermined dimension connecting the supported portion 21b and a locked portion 21a, and a locked convex portion 21d that suppresses the hook 21 from coming off a locking target object. The locked portion 21a is a portion extending in the front-rear direction of the paper surface and has the same shape as that in FIG. 3.

[0081] In the hook 21, the extension portion 21c extends from the supported portion 21b. The locked portion 21a is formed at the top of the extension portion 21c. The locked convex portion 21d extends from the locked portion 21a along the extension portion 21c in the direction of the supported portion 21b. In the hook 21, an opening is formed between the locked convex portion 21d and the extension portion 21c with a dimension that allows a locking target object such as a reinforcing bar S to be inserted.

[0082] The extension part 21c has a plurality of direction parts. In this example, from the supported part 21b towards the locked part 21a, it has a first direction part 21c' and a second direction part 21c'' whose extension direction is different from that of the first direction part 21c'. The first direction part 21c' and the second direction part 21c'' each include a first extension part 21c'1 and a second extension part 21c'2 with a predetermined dimension for the first direction part 21c', and a first extension part 21c''1 and a second extension part 21c''2 with a predetermined dimension for the second direction part 21c''. The first extension parts 21c'1, 21c''1 and the second extension parts 21c'2, 21c''2 extend parallel to each other respectively. Also, the locked part 21a includes a first locked part 21a1 and a second locked part 21a2 in this example. The first locked part 21a1 is connected to the first extension part 21c''1 in the second direction part, and the second locked part 21a2 is connected to the second extension part 21c''2 in the second direction part. The hook 21 is such that the direction in which the first locked part 21a1 and the second locked part 21a2 are arranged is orthogonal to the extension direction of the second direction part 21c''. Note that the direction in which the first locked part 21a1 and the second locked part 21a2 are arranged and the extension direction of the second direction part 21c'' do not have to be orthogonal as long as they can be locked to the locking object. Also, although it has been described that the extension part has two direction parts, namely the first direction part and the second direction part, whose extension directions are different, the extension part may have three or more direction parts with different extension directions. Also, the dimensions of each direction part in its respective extension direction may be different, and the dimensions of the extension parts in the direction orthogonal to the extension direction of each direction part may be the same or different.

[0083] The supported part 21b includes a fastening part 21e to which the screw 14 is fastened. The fastening part 21e is an example of a fixing part and is composed of a female screw that penetrates the plate-shaped supported part 21b in this example. The hook 21 may include a plurality of fastening parts 21e in order to be fixed to the hook mounting part 12 with a plurality of screws 14. The supported part 21b includes two fastening parts 21e in this example. Note that regarding the support shape, the number of fastening locations, positions, and support means (fastening) may be appropriately changed as long as they can be locked to the locking object.

[0084] Further, the locking portion does not have to be a hook attachment portion, and a shape capable of locking to a locking object may be provided on the main body portion 10 or the cover 15 without using a hook.

[0085] Further, the tool is not limited to a steel bar bundling machine. For example, a tool such as an electric drill driver is not configured with consumables, and the center of gravity of the tool is defined according to the equipment of a power supply source such as a battery. Also, in a tool that drives a fastener such as a nail using compressed air as a power source, since the compressed air is supplied from an external air compressor, it is not configured with a power supply source, and the center of gravity of the tool is defined according to the equipment of the fastener that is a consumable.

Explanation of Reference Numerals

[0086] 1A ··· Steel bar bundling machine (tool), 10 ··· Main body portion, 10H ··· Handle portion (grip portion), 10W ··· Working portion, 10La ··· Concavo-convex portion, 10Ra ··· Concavo-convex portion, 11, 21 ··· Hooks (locking bodies, tool locking bodies), 11a, 21a ··· Locked portions, 11b, 21b ··· Supported portions, 11c, 21c ··· Extension portions, 11d, 21d ··· Locked convex portions, 11e, 21e ··· Fastening portions, 12 ··· Hook attachment portion (locking portion), 12a ··· Support portion, 12b ··· Hole portion, 14 ··· Screw (fixing portion), 15 ··· Cover (tool cover), 15L ··· First cover portion, 15R ··· Second cover portion, 15La ··· Positioning portion, 15Ra ··· Positioning portion, 15Lb ··· Hole portion (connecting portion), 15Rb ··· Fastening portion (connecting portion), 16 ··· Screw (connecting portion)

Claims

1. In a tool having a main body portion and a gripping portion connected to the main body portion, a locking portion provided at different angles toward the center of gravity of the tool and capable of locking a locking target is provided, the locking portion is provided on the main body portion Tool.

2. The main body portion has a working portion for working on a work object at the front end in the extending direction, has the gripping portion on one side in the direction intersecting the extending direction, and the locking portion is located on the other side of the gripping portion The tool according to claim 1.

3. The main body portion has a working portion at the front end in the extending direction, and the locking portion is located behind the working portion The tool according to claim 1.

4. The locking portion can be locked to a locking target via a locking body, and the locking body can be attached so as to face the center of gravity The tool according to claim 3.

5. The main body portion includes the locking portion at a position parallel to the extending direction and at an interval from the gripping portion The tool according to claim 4.

6. The locking body includes a locked portion to be locked to a locking target, and the locked portion protrudes in the extending direction from the main body portion The tool according to claim 4.

7. The locking portion includes a plurality of fixing portions The tool according to claim 1.

8. The main body portion is a binding portion for binding steel bars with a wire, a battery mounting portion to which a battery is mounted, and a storage portion for storing a wire The tool according to claim 1.

9. A cover detachably attached to a tool having a main body portion and a gripping portion connected to the main body portion, a locking portion provided at different angles toward the center of gravity of the tool and capable of locking a locking target is provided, the locking portion is provided on the cover Tool cover.

10. The main body portion has a working portion at the front end in the extending direction, has the gripping portion on one side in the direction perpendicular to the extending direction, and the locking portion is located on the other side of the gripping portion The tool cover according to claim 9.

11. The main body portion has a working portion at the front end in the extending direction, and the locking portion is located behind the working portion The tool cover according to claim 9.

12. The locking portion can be locked to a locking target via a locking body, and the locking body can be attached so as to face the center of gravity The tool cover according to claim 11.

13. The main body portion includes the locking portion at a position parallel to the extending direction and at an interval from the gripping portion The tool cover according to claim 12.

14. The locking body includes a locked portion that is locked to an object to be locked, and the locked portion protrudes in the extending direction from the main body portion. The tool cover according to claim 12.

15. The locking portion includes a plurality of fixing portions. The tool cover according to claim 9.

16. It includes a positioning portion that matches the outer shape of the main body portion, and when attached to the main body portion, the positioning portion fits into the main body portion. The tool cover according to claim 9.

17. A plurality of cover portions, and a connecting portion that integrates the plurality of cover portions attached to the main body portion. The tool cover according to claim 16.

18. The main body portion has a working portion at the front end in the extending direction and a gripping portion on one side in the direction orthogonal to the extending direction. It is shaped to expose the gripping portion and be attached to the main body portion. The tool cover according to claim 17.

19. The tool includes a binding portion for binding steel bars with a wire, a battery mounting portion to which a battery is attached, and a storage portion for storing the wire. The tool cover according to claim 9.

20. In a tool having a main body portion and a gripping portion connected to the main body portion, for a locking portion provided on the main body portion and capable of locking an object to be locked via a locking body, the locking body can be attached toward the center of gravity of the tool. Tool locking body.

21. In a cover detachably attached to a tool having a main body portion and a gripping portion connected to the main body portion, for a locking portion provided on the cover and capable of locking an object to be locked via a locking body, the locking body can be attached toward the center of gravity of the tool. Tool locking body.

22. The locking body has a direction portion having a plurality of extending directions. The tool locking body according to claim 20 or claim 21.

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