Tool, tool cover, and tool hooking body

Abstract

Provided is a tool to which a hook that can be hooked onto a hooking target can be attached in accordance with a mode of use by a user. A rebar tier (1A) comprises: a body (10); a handle (10H); and a plurality of hook attachment parts (12) that are provided at different angles toward the center of gravity G of the rebar tier (1A) and allow for hooking onto a hooking target. When a hook (11) is attached to a hook attachment part (12), a hooking part (11a) faces the center of gravity G. The hook attachment parts (12) are provided to a cover (15) that can be attached to and detached from the body (10).

Description

Tool, tool cover, and tool locking body

[0001] The present invention relates to a tool equipped with a hook that can be hooked onto an object to be locked, and to a cover that is equipped with a hook that can be hooked onto an object to be locked and that can be attached to and detached from the tool.

[0002] BACKGROUND ART Some hand-held tools, such as rebar tying machines, nail guns, drilling machines, and screw drivers, are equipped with a hook that allows the tool to be hooked onto an object to be fastened.

[0003] Patent document 1 describes a binding machine having a binding section at the longitudinal front end for binding wire, a main body section that houses a drive section that drives the binding section inside, a storage section that is provided on the underside of the main body section and stores the wire so that it can be fed out, a gripping section that is provided on the underside of the main body section and rearward of the storage section, a first hook mounting section located on the top side of the main body section and to which a hook with an opening on one side can be attached, and a second hook mounting section located on the side of the main body section and to which a hook with an opening on one side can be attached, the first hook mounting section having a hook opening facing the longitudinal front side of the main body section, and the second hook mounting section having a hook opening facing the center of gravity of the binding machine.

[0004] Japanese Patent Application Publication No. 2023-41539

[0005] Incidentally, at work sites where reinforcement work is carried out, such as placing reinforcing bars in walls and pillars, or where tying work is carried out, where the reinforcing bars are tied with wire, it may be more efficient to hook temporarily unused tools such as reinforcing bar tying machines onto the reinforcing bars rather than placing them on scaffolding when moving on to the next tying work.

[0006] In the binding machine described in Patent Document 1, the opening of the hook attached to the second hook attachment portion faces the center of gravity of the binding machine. As a result, when the binding machine is hooked onto a rebar using this hook, the orientation of the binding machine does not change significantly even if the user lets go of the binding machine.

[0007] However, when a user of a binding machine uses a hook to hook the binding machine onto a rebar and then grips and uses the binding machine again, different users use the tool in different ways, and it is necessary to be able to accommodate the various usage patterns of each user.

[0008] The present invention has been made to solve such problems, and aims to provide a tool that can be fitted with a hook that can be hooked onto an object to be locked, and a cover that can be attached to the tool and has a hook that can be hooked onto an object to be locked, in order to accommodate various usage patterns of each user.

[0009] In order to solve the above-mentioned problems, the present invention provides a tool having a main body portion and a gripping portion connected to the main body portion, which is provided with a locking portion that is arranged at different angles toward the center of gravity of the tool and is capable of locking an object to be locked, and the locking portion is provided on the main body portion.

[0010] The present invention also provides a tool cover that can be removably attached to a tool having a main body and a gripping portion connected to the main body, and that has locking portions that are arranged at different angles toward the center of gravity of the tool and that can lock an object to be locked, and the locking portions are arranged on the cover.

[0011] Furthermore, the present invention relates to a locking body for a tool having a main body and a grip connected to the main body, the locking body being provided on the main body and capable of locking an object via the locking body, the locking body being attachable to the center of gravity of the tool. Also, the present invention relates to a locking body for a tool having a main body and a grip connected to the main body, the locking body being attached to the cover in a detachable manner to the tool having a main body and a grip connected to the main body, the locking body being attachable to the cover in a detachable manner to the tool.

[0012] In the present invention, the locking bodies that can be locked to an object to be locked are attached at different angles toward the center of gravity of the tool.

[0013] In the present invention, a locking body that can be hooked onto an object to be locked at different angles toward the center of gravity of the tool can be attached to accommodate various usage patterns of each user.

[0014] Furthermore, the cover of the present invention can be attached to existing tools, and a locking body can be attached to the existing tool that can be hooked onto the object to be locked at different angles toward the center of gravity of the tool to accommodate various usage patterns of each user.

[0015] 7A is a side view showing an example of a reinforcing bar binding machine according to the present embodiment, as seen from one side. FIG. 7B is a perspective view showing an example of a reinforcing bar binding machine according to the present embodiment, as seen from one side. FIG. 7C is a side view showing an example of a reinforcing bar binding machine according to the present embodiment, as seen from another side. FIG. 7D is a perspective view showing an example of a hook. FIG. 7E is a perspective view showing an example of a hook attachment section. FIG. 7F is an exploded perspective view showing an example of a cover of the reinforcing bar binding machine according to the present embodiment, with the cover disassembled. FIG. 7G is a perspective view showing an example of a cover. FIG. 7H is a perspective view showing an example of a cover. FIG. 7I is a side view showing an example of a reinforcing bar binding machine according to the present embodiment, with the hook not attached, as seen from one side. A cross-sectional view taken along line A-A in FIG. 7A. FIG. 7I is a perspective view of a reinforcing bar binding machine showing an example of a hook attachment method. FIG. 7J is an internal configuration diagram seen from the side, showing an example of the overall configuration of the reinforcing bar binding machine according to the present embodiment. FIG. 7I is an explanatory diagram showing an example of a usage form of the hook. FIG. 7I is an explanatory diagram showing an example of a usage form of the hook. FIG. 7I is a side view of a reinforcing bar binding machine showing an example of an attachment form of the hook. Fig. 1 is a side view of a reinforcing bar binding machine showing an example of hook attachment; Fig. 2 is a side view of a reinforcing bar binding machine showing an example of hook attachment; Fig. 3 is a top view of a reinforcing bar binding machine showing an example of hook attachment; Fig. 4 is an explanatory diagram showing another example of how the hook is used; Fig. 5 is an explanatory diagram showing another example of how the hook is used; Fig. 6 is an explanatory diagram showing another example of the hook.

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

[0017] <Configuration example of a reinforcing bar binding machine according to this embodiment> Fig. 1A is a side view of an example of a reinforcing bar binding machine according to this embodiment, as seen from one side, Fig. 1B is a perspective view of an example of a reinforcing bar binding machine according to this embodiment, as seen from one side, Fig. 2A is a side view of an example of a reinforcing bar binding machine according to this embodiment, as seen from another side, and Fig. 2B is a perspective view of an example of a reinforcing bar binding machine according to this embodiment, as seen from another side.

[0018] The reinforcing bar binding machine 1A is designed to be held by an operator and includes a main body 10 and a handle 10H, which is an example of a gripping portion connected to the main body 10.

[0019] In the reinforcing bar binding machine 1A, a working unit 10W where the work of binding reinforcing bars S, which are the work object, is performed is formed on one side along the extension direction of the main body 10 indicated by arrow B. In the reinforcing bar binding machine 1A, the side on which the working unit 10W is formed relative to the extension direction of the main body 10 is referred to as the front side, and the other side opposite to the side on which the working unit 10W is formed is referred to as the rear side.

[0020] Furthermore, in the rebar binding machine 1A, the handle portion 10H extends in a direction intersecting the extension direction of the main body portion 10. That is, in the rebar binding machine 1A, the extension direction of the handle portion 10H indicated by arrow C intersects with the extension direction of the main body portion 10. In the rebar binding machine 1A, the side on which the handle portion 10H is formed is referred to as the lower side (one side), and the side opposite to the side on which the handle portion 10H is formed is referred to as the upper side (other side).

[0021] The reinforcing bar tying machine 1A has a locking portion that can lock onto a reinforcing bar S or the like. The locking portion can lock onto the reinforcing bar S directly or indirectly. In this embodiment, a form that can indirectly lock onto the reinforcing bar S is shown, and the locking portion is equipped with a hook 11 that can hook the reinforcing bar tying machine 1A onto the reinforcing bar S. The hook 11 is an example of a locking body or a tool locking body, and is provided with a locked portion 11a that can be locked onto the reinforcing bar S at the end of the hook 11 in the extension direction indicated by arrow D.

[0022] The rebar tying machine 1A has multiple hook attachment portions 12 that are provided at different angles toward the center of gravity G of the rebar tying machine 1A. The hook attachment portions 12 are an example of a locking portion, and the hooks 11 can be attached at different angles toward the center of gravity G of the rebar tying machine 1A. In the above, "attachable at different angles" refers to a structure in which the locking body is fixed and attached to the locking portion at a predetermined angle. Furthermore, "fixed" refers to a degree of fixation that allows for some relative displacement, but does not affect the locking.

[0023] The hook mounting portion 12 is preferably provided on at least one side surface of the rear of the main body 10. The "side surface" here refers to a surface parallel to the extension direction of the main body 10. Preferably, the hook mounting portion 12 is provided on a side surface of the main body 10, i.e., positioned away from the handle portion 10H, so that the operator's hand grasping the handle portion 10H is less likely to come into contact with the rebar S as the object to be fastened. The hook mounting portion 12 provided on the side surface of the main body 10 is preferably attached with the hook 11 so that the engaging portion 11a faces the center of gravity G of the rebar tying machine 1A when viewed from the side. In a configuration including multiple hook mounting portions 12, the hook 11 is preferably attached to at least one hook mounting portion 12 so that the engaging portion 11a faces the center of gravity G of the rebar tying machine 1A when viewed from the side.

[0024] The hook 11 is preferably attached to the hook attachment portion 12 in a direction in which the extension direction of the hook 11 intersects with the extension direction of the handle portion 10H. In a configuration including multiple hook attachment portions 12, the hook 11 is preferably attached to at least one hook attachment portion 12 in a direction in which the extension direction of the hook 11 intersects with the extension direction of the handle portion 10H.

[0025] The hook 11 may be attached to the hook mounting portion 12 so that the engaging portion 11a is located rearward of the extension line of the handle portion 10H in the extension direction. Furthermore, the hook 11 may be attached to the hook mounting portion 12 so that at least a portion of the engaging portion 11a is located rearward of the rear end Bp of the main body 10. In a configuration including multiple hook mounting portions 12, the hook 11 may be attached to at least one hook mounting portion 12 so that at least a portion of the engaging portion 11a is located rearward of the rear end Bp of the main body 10.

[0026] 3 is a perspective view showing an example of a hook. The hook 11 includes a supported portion 11b that can be fixed to and supported by the hook mounting portion 12, an extension portion 11c having a predetermined dimension that connects the supported portion 11b and the locked portion 11a, and a locked protrusion 11d that prevents the hook 11 from coming off the object to be locked.

[0027] The hook 11 has an extension portion 11c extending from the supported portion 11b. The interlocking portion 11a is formed at the top of the extension portion 11c. The interlocking protrusion 11d extends from the interlocking portion 11a along the extension portion 11c toward the supported portion 11b. The hook 11 has an opening between the interlocking protrusion 11d and the extension portion 11c that is large enough to allow an interlocking object such as a rebar S to be inserted.

[0028] In this example, the extending portion 11c includes a first extending portion 11c1 and a second extending portion 11c2. The first extending portion 11c1 and the second extending portion 11c2 extend parallel to each other. In this example, the locked portion 11a includes a first locked portion 11a1 and a second locked portion 11a2. The first locked portion 11a1 is connected to the first extending portion 11c1, and the second locked portion 11a2 is connected to the second extending portion 11c2. In the hook 11, the direction in which the first locked portion 11a1 and the second locked portion 11a2 are aligned is perpendicular to the extension direction of the hook 11. The direction in which the first and second locked portions 11a1 and 11a2 are aligned does not have to be perpendicular to the extension direction of the hook 11, as long as the hook 11 can be locked to an object to be locked.

[0029] The supported portion 11b has a fastening portion 11e to which the screw 14 is fastened. The fastening portion 11e is an example of a fixing portion, and in this example is formed by a female screw that penetrates the plate-shaped supported portion 11b. The hook 11 may have multiple fastening portions 11e so that it can be fixed to the hook attachment portion 12 with multiple screws 14. In this example, the supported portion 11b has two fastening portions 11e. Note that the support shape, the number and positions of fastening points, and support means (fastening) may be changed as appropriate as long as they can be engaged with an object to be engaged.

[0030] 4 is a perspective view showing an example of the hook mounting portion 12. The hook mounting portion 12 includes a support portion 12a that can support the supported portion 11b, and a hole portion 12b into which a screw 14 is inserted.

[0031] The supporting portion 12a has a predetermined shape that matches the outer shape of the supported portion 11b, and is configured with a recess or the like into which the supported portion 11b can be inserted. As a result, the supporting portion 12a is configured so that the attachment position, orientation, etc. of the hook 11 can be determined by inserting the supported portion 11b into it. Furthermore, when the hook 11 is fixed, the supported portion 11b is positioned in a state where it is inserted into the supporting portion 12a, and the hole portion 12b1 and the fastening portion 11e can be fixed, so the hook does not move far from the fixed position, and the hook 11 can be easily fixed to the hook attachment portion 12. The orientation of the hook 11 refers to the direction in which the hook 11 extends, i.e., the direction in which the extension portion 11c extends.

[0032] The holes 12b are provided in the support portion 12a in an arrangement that matches the fastening portions 11e of the hook 11. The hook mounting portion 12 may be provided with a plurality of holes 12b to determine the orientation of the hook 11. The hook mounting portion 12 may also be provided with a plurality of rows of holes 12b to allow the mounting position of the hook 11 to be variable. In this example, the hook mounting portion 12 has two holes 12d that match the arrangement of the two fastening portions 11e and are provided in two rows at a predetermined interval.

[0033] In this example, the reinforcing bar binding machine 1A has hook mounting portions 12L1, 12L2, 12L3, 12R1, 12R2, and 12R3 provided in three locations on each side of the main body 10. In addition, the reinforcing bar binding machine 1A has a hook mounting portion 12U provided in one location on the top surface of the main body 10.

[0034] The hook mounting portions 12L1, 12L2, 12L3, 12R1, 12R2, and 12R3 have their support portions 12a and hole portions 12b shaped and oriented such that when the hook 11 is attached, the engaging portion 11a faces the center of gravity G of the rebar binding machine 1A when viewed from the side.

[0035] Each hook mounting portion 12 may be configured to be provided on a cover 15 that can be attached to and detached from the reinforcing bar binding machine 1A.

[0036] Fig. 5 is an exploded perspective view of an example of a reinforcing bar binding machine according to this embodiment with the cover disassembled, and Figs. 6A, 6B, 6C, and 6D are perspective views showing examples of the cover. Fig. 7A is a side view of an example of a reinforcing bar binding machine according to this embodiment without hooks attached, as seen from one side, and Fig. 7B is a cross-sectional view taken along line A-A in Fig. 7A. Fig. 8 is a perspective view of a reinforcing bar binding machine showing an example of a method for attaching hooks.

[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 to cover one rear side surface of the main body portion 10, and the second cover portion 15R is configured to cover the other rear side surface of the main body portion 10.

[0038] The first cover part 15L has a positioning part 15La on an inner surface facing one side surface of the main body part 10. The second cover part 15R has a positioning part 15Ra on an inner surface facing the other side surface of the main body part 10.

[0039] The main body 10 has an uneven outer shape due to the internal configuration, design considerations, and the provision of holes for inserting screws to integrate multiple components by screw fastening, and an uneven portion 10La is formed on one side of the main body 10. Similarly, an uneven portion 10Ra is formed on the other side of the main body 10.

[0040] The positioning portion 15La is configured by providing an uneven shape that matches the uneven portion 10La on one side surface of the main body portion 10. The positioning portion 15Ra is configured by providing an uneven shape that matches the uneven portion 10Ra on the other side surface of the main body portion 10.

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

[0042] The first cover part 15L covers one rear side surface of the main body part 10 in a state where its position relative to the main body part 10 is defined by aligning the positioning part 15La with the concave-convex part 10La of the main body part 10. The second cover part 15R covers one rear side surface of the main body part 10 in a state where its position relative to the main body part 10 is defined by aligning the positioning part 15Ra with the concave-convex part 10Ra of the main body part 10.

[0043] The cover 15 covers one side of the reinforcing bar binding machine 1A with the first cover part 15L and the other side of the reinforcing bar binding machine 1A with the second cover part 15R, so that the positions of the hole parts 15Lb and the fastening parts 15Rb are aligned. Then, when the screws 16 inserted into the holes 15Lb are fastened to the fastening parts 15Rb, the first cover part 15L and the second cover part 15R are integrated and fixed to the reinforcing bar binding machine 1A.

[0044] The positioning portion 15La of the first cover portion 15L of the cover 15 fits into the uneven portion 10La on one side of the main body portion 10, and the positioning portion 15Ra of the second cover portion 15R fits into the uneven portion 10Ra on the other side of the main body portion 10. This prevents the cover 15 from moving unintentionally relative to the rebar binding machine 1A or from coming off unintentionally from the rebar binding machine 1A.

[0045] Furthermore, the cover 15 has positioning portions 15La and 15Ra formed on the first cover portion 15L and the second cover portion 15R to match the external shape of the main body 10 of an existing reinforcing bar binding machine 1A. As a result, by using the cover 15, the hook mounting portion 12 can be provided on an existing reinforcing bar binding machine 1A that does not have the hook mounting portion 12.

[0046] Furthermore, the cover 15 covers the main body 10 while leaving the handle 10H exposed. This prevents the cover 15 from becoming an obstacle when gripping the handle 10H. In this example, the rebar binding machine 1A is provided with an operating unit 9 (described later) at the rear end of the main body 10. For this reason, the cover 15 has an open rear end so that the operating unit 9 is exposed.

[0047] To attach the hook 11 to the hook attachment portion 12, the supported portion 11b of the hook 11 is inserted into the supporting portion 12a. When the supported portion 11b is inserted into the supporting portion 12a, the orientation of the hook 11 relative to the main body portion 10 is determined by the shapes of the supporting portion 12a and the supported portion 11b, etc.

[0048] In addition, the hook 11 is fixed to the hook mounting portion 12 with its orientation relative to the main body portion 10 specified 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 position of the fastening portion 11e of the hook 11 is aligned with the first row of hole portions 12b1 or the second row of hole portions 12b2, and the screw 14 inserted into the hole portion 12b is fastened to the fastening portion 11e, thereby switching the position of the engaging portion 11a along the extension direction of the hook 11.

[0050] 9 is a side view of the internal configuration of an example of the overall configuration of a reinforcing bar binding machine according to this embodiment. The reinforcing bar binding machine 1A feeds a wire W in the forward direction indicated by the arrow F to wind it around the reinforcing bar S to be bound, and then feeds the wire W wound around the reinforcing bar S in the reverse direction indicated by the arrow R to wind it around the reinforcing bar S. The reinforcing bar binding machine 1A then twists the wire W to bind the reinforcing bar S with the wire W. The reinforcing bar binding machine 1A binds the reinforcing bars S with multiple wires W, two wires W in this example. Note that the reinforcing bar binding machine 1A may also be configured to bind the reinforcing bars S with a single wire W.

[0051] To achieve the above-described functions, the rebar binding machine 1A includes a magazine 2 that stores the wire W, a wire feeding unit 3 that feeds the wire W, and a wire guide 4 that guides the wire W fed to the wire feeding unit 3. The rebar binding machine 1A also includes a curl forming unit 5 that forms a circular feeding path for winding the wire W fed by the wire feeding unit 3 around the rebar S, and a cutting unit 6 that cuts the wire W wound around the rebar S. The rebar binding machine 1A also includes a binding unit 7 that twists the wire W wound around the rebar S, and a drive unit 8 that drives the binding unit 7. The rebar binding machine 1A also includes an operation unit 9 that can set the magnitude of the binding force used to twist and bind the wire W.

[0052] The magazine 2 is an example of a storage section, and rotatably and detachably stores a reel 20 around which a long wire W is wound so that it can be unwound. The wire W is an example of a consumable item. The wire W may be a wire made of a metal wire that can be plastically deformed, a metal wire coated with resin, or a twisted wire. In a configuration in which two wires W are used to bind reinforcing bars S, the reel 20 has two wires W wound around it, and the two wires W can be pulled out from the reel 20 at the same time.

[0053] The wire feeding unit 3 includes a pair of feed gears 30 that clamp and feed the wire W. The rotation of a feed motor (not shown) is transmitted to the feed gear 30, causing the feed gear 30 to rotate. The wire feeding unit 3 also switches the rotation direction of the feed gear 30 by switching the rotation direction of the feed motor (not shown) between forward and reverse, thereby switching the forward and reverse feed direction of the wire W. In a configuration in which reinforcing bars S are bound with two wires W, the wire feeding unit 3 feeds the two wires W aligned in the radial direction of the wires W.

[0054] The wire guide 4 is disposed on the upstream side and the downstream side (not shown) of the feed gear 30 with respect to the feed direction of the wire W fed in the forward direction. In a configuration in which the reinforcing bars S are bound together with two wires W, the wire guide 4 guides the two incoming wires W between the pair of feed gears 30, aligning them in the direction in which the pair of feed gears 30 are aligned.

[0055] The curl forming unit 5 includes a curl guide 50 that curls the wire W fed by the wire feeding unit 3, and an induction guide 51 that guides the wire W curled by the curl guide 50 to the bundling unit 7. The curl forming unit 5 curls the wire W that is fed by the wire feeding unit 3 and passes through the curl guide 50, thereby forming a circular feed path Ru as shown by the two-dot chain line, which runs from the curl guide 50 through the induction guide 51 and reaches the bundling unit 7.

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

[0057] The bundling unit 7 includes a wire locking body 70 to which the wire W is locked, and a sleeve 71 that operates the wire locking body 70. The driving unit 8 includes a torsion motor 80 and a reducer 81 that reduces speed and amplifies torque.

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

[0059] The rebar binding machine 1A has a trigger 10T provided on the front side of a handle 10H, and a switch 10S provided inside the handle 10H. In the rebar binding machine 1A, a control unit (not shown) controls the feed motor and the torsion motor 80 depending on the state of the switch 10S pressed by operating the trigger 10T.

[0060] The reinforcing bar binding machine 1A includes a battery attachment portion 10B below a handle portion 10H. A battery 100 is detachably attached to the battery attachment portion 10B.

[0061] In the rebar binding machine 1A, the magazine 2 is provided in front of the handle portion 10H. In addition, in the rebar binding machine 1A, the above-mentioned wire feeding unit 3, cutting unit 6, binding unit 7, drive unit 8 that drives the binding unit 7, etc. are stored in the main body portion 10. The torsion motor 80 is stored at the rear end side within the main body portion 10.

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

[0063] The center of gravity G of the rebar binding machine 1A is the center of gravity when the rebar binding machine 1A is in use, with the reel 20 wound with wire W housed in the magazine 2 and the battery 100 attached to the battery attachment portion 10B. The center of gravity G shown in FIG. 1A and other figures is the position of the center of gravity when the reel 20 wound with a predetermined amount of wire W is housed in the magazine 2. In the rebar binding machine 1A, wire W is consumed during the operation of binding rebars S, so the amount of wire W wound on the reel 20 decreases. Therefore, the weight of the reel 20 changes, but the center of gravity G of the rebar binding machine 1A is located approximately between the handle portion 10H and the magazine 2.

[0064] 10A and 10B are explanatory diagrams showing an example of how the hook is used. As shown in FIGS. 2A and 2B, when the hook 11 is attached to the hook attachment portion 12R1, the extension direction of the hook 11 intersects with the extension direction of the handle portion 10H, and the engaging portion 11a is located rearward of the extension line of the extension direction of the handle portion 10H and rearward of the rear end Bp of the main body portion 10. Furthermore, when the reinforcing bar binding machine 1A is viewed from the side, the engaging portion 11a faces the center of gravity G of the reinforcing bar binding machine 1A.

[0065] Consider the operation of hooking the reinforcing bar binding machine 1A onto the reinforcing bar S using the hook 11 when the installation surface of the reinforcing bar S is in the vertical direction.

[0066] The rebar tying machine 1A is used by gripping the handle 10H with the hand and operating the trigger 10T with the fingers of the hand gripping the handle 10H. Therefore, the user of the rebar tying machine 1A extends his / her arm from the rear of the main body 10 to grip the handle 10H.

[0067] When a user holds the handle portion 10H with their right hand, the user will view the rebar binding machine 1A from the left side, as shown in FIG. 10A, when hooking the hook 11 onto a rebar S extending laterally. When the hook 11 is attached to the hook mounting portion 12R1, the hook 11 is attached to the side of the main body 10 opposite the visible side. However, because the interlocking portion 11a is located behind the rear end Bp of the main body 10, the user can see the interlocking portion 11a even when viewing the rebar binding machine 1A from the left side, as shown in FIG. 10A. This allows the interlocking portion 11a to be easily and reliably aligned with the rebar S.

[0068] Furthermore, since the extension direction of the hook 11 is perpendicular to the extension direction of the handle portion 10H, the hook 11 can be hooked onto the reinforcing bar S without significantly changing the orientation of the wrist.

[0069] Furthermore, because the engaging portion 11a faces the center of gravity G of the rebar binding machine 1A, the orientation of the rebar binding machine 1A does not change significantly when the hook 11 is hooked onto the rebar S and the handle portion 10H is released. This allows the rebar binding machine 1A to be reliably hooked onto the rebar S using the hook 11. Also, when gripping the handle portion 10H again, there is no need to significantly change the orientation of the wrist. This allows the machine to accommodate a variety of usage patterns for different users.

[0070] The hook 11 is fixed to the hook mounting portion 12 by another fixing portion, i.e., a screw 14, with its orientation relative to the main body portion 10 being determined by the shapes of the supporting portion 12a and the supported portion 11b, etc. By fixing the hook 11 to the hook mounting portion 12 by at least two fixing portions in this way, it is possible to prevent the orientation of the hook 11 from changing unexpectedly.

[0071] The cover 15 is made of resin, and the hook 11 is made of metal.

[0072] Figures 11A, 11B, 12A, and 12B are side views of a rebar tying machine showing an example of hook installation, where Figures 11A and 11B are side views of the rebar tying machine 1A seen from one side, and Figures 12A and 12B are side views of the rebar tying machine 1A seen from the other side.

[0073] 11A, the hook 11 is attached to the hook mounting portion 12L2. The hook 11 attached to the hook mounting portion 12L2 is attached to the main body 10 via the cover 15 at a different angle toward the center of gravity G of the rebar binding machine 1A when viewed from the side compared to the hook 11 attached to the hook mounting portion 12L1. The hook 11 attached to the hook mounting portion 12L2 has its engaged portion 11a facing toward the center of gravity G when viewed from the side.

[0074] 11B, the hook 11 is attached to hook mounting portion 12L3. The hook 11 attached to hook mounting portion 12L3 is attached to the main body 10 via cover 15 at a different angle toward the center of gravity G of the rebar binding machine 1A when viewed from the side compared to the hook 11 attached to hook mounting portion 12L1 and the hook 11 attached to hook mounting portion 12L2. The hook 11 attached to hook mounting portion 12L3 has its engaged portion 11a facing the center of gravity G when viewed from the side.

[0075] 12A, the hook 11 is attached to the hook mounting portion 12R2. The hook 11 attached to the hook mounting portion 12R2 is attached to the main body 10 via the cover 15 at a different angle toward the center of gravity G of the rebar binding machine 1A when viewed from the side compared to the hook 11 attached to the hook mounting portion 12R1. The hook 11 attached to the hook mounting portion 12R2 has its engaged portion 11a facing toward the center of gravity G when viewed from the side.

[0076] 12B, the hook 11 is attached to hook mounting portion 12R3. The hook 11 attached to hook mounting portion 12R3 is attached to the main body 10 via cover 15 at a different angle toward the center of gravity G of the rebar binding machine 1A when viewed from the side compared to the hook 11 attached to hook mounting portion 12R1 and the hook 11 attached to hook mounting portion 12R2. The hook 11 attached to hook mounting portion 12R3 has its engaged portion 11a facing the center of gravity G when viewed from the side.

[0077] 13 is a top view of the reinforcing bar binding machine showing an example of hook attachment. 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 10 via the cover 15 at a different angle toward the center of gravity G of the reinforcing bar binding machine 1A than the hooks 11 attached to the other hook attachment portions 12.

[0078] 14A and 14B are explanatory diagrams showing other examples of how the hook can be used. As shown in FIG. 13, when the hook 11 is attached to the hook mounting portion 12U, the engaging portion 10a does not face the center of gravity G of the rebar binding machine 1A. However, when the hook 11 attached to the hook mounting portion 12U is hooked onto a rebar S, the upper surface of the main body 10 comes into contact with the rebar S, and the orientation of the rebar binding machine 1A does not change significantly even if the handle portion 10H is released. In this case, the handle portion 10H extends in a direction intersecting the surface on which the rebar S is placed. This allows for various usage patterns for each user.

[0079] Although the multiple hook mounting portions 12 have been described as each having a hole 12b formed therein, the holes 12b may be arranged so that the multiple hook mounting portions 12 can share one hole 12b.

[0080] <Another Configuration Example of the Reinforcing Bar Binding Machine of the Present Embodiment> Figure 15 is a diagram showing another example of a hook serving as a locking body. Hook 21 serving as a locking body includes supported portion 21b that can be supported by hook mounting portion 12, extension portion 21c having a predetermined dimension connecting supported portion 21b and locked portion 21a, and locked protrusion 21d that prevents hook 21 from coming off the object to be locked. Note that locked portion 21a is a portion that extends in the front-to-rear direction of the page and has the same shape as in Figure 3.

[0081] Hook 21 has extension portion 21c extending from supported portion 21b. Interlocking portion 21a is formed at the top of extension portion 21c. Interlocking protrusion 21d extends from interlocking portion 21a along extension portion 21c toward supported portion 21b. Hook 21 has an opening between interlocking protrusion 21d and extension portion 21c that is large enough to allow an interlocking object such as rebar S to be inserted.

[0082] The extension portion 21c has a plurality of directional portions, and in this example, from the supported portion 21b toward the locked portion 21a, it has a first directional portion 21c' and a second directional portion 21c" that extends in a direction different from the extension direction of the first directional portion 21c'. The first directional portion 21c' and the second directional portion 21c" respectively have a first extension portion 21c'1 and a second extension portion 21c'2 that have predetermined dimensions, and the second directional portion 21c" has a first extension portion 21c"1 and a second extension portion 21c"2 that have predetermined dimensions. The first extension portions 21c'1, 21c''1 and the second extension portions 21c'2, 21c''2 extend parallel to each other. In this example, the locked portion 21a includes a first locked portion 21a1 and a second locked portion 21a2. The first locked portion 21a1 is connected to the first extending portion 21c''1 in the second direction portion, and the second locked portion 21a2 is connected to the second extending portion 21c''2 in the second direction portion. In the hook 21, the direction in which the first locked portion 21a1 and the second locked portion 21a2 are aligned is perpendicular to the extending direction of the second direction portion 21c''. It should be noted that the direction in which the first engaging portion 21a1 and the second engaging portion 21a2 are aligned and the extension direction of the second direction portion 21c'' do not have to be perpendicular as long as they can be engaged with the object to be engaged, and although it has been described that the extension portion has two direction portions, the first direction portion and the second direction portion, which have different extension directions, the extension portion may have three or more direction portions with different extension directions, and each direction portion may have different dimensions in each extension direction, and the dimensions of the extension portion in the direction perpendicular to the extension direction of each direction portion may be the same or different.

[0083] The supported portion 21b has a fastening portion 21e to which the screw 14 is fastened. The fastening portion 21e is an example of a fixing portion, and in this example is formed by a female screw that penetrates the plate-shaped supported portion 21b. The hook 21 may have multiple fastening portions 21e so that it can be fixed to the hook attachment portion 12 with multiple screws 14. In this example, the supported portion 21b has two fastening portions 21e. Note that the support shape, the number and positions of fastening points, and support means (fastening) may be changed as appropriate as long as they can be engaged with an object to be engaged.

[0084] Furthermore, the locking portion does not have to be a hook mounting portion, and instead of using a hook, the main body 10 or the cover 15 may be provided with a shape that can be locked to an object to be locked.

[0085] Furthermore, the tool is not limited to a rebar tying machine. For example, a tool such as an electric drill driver is not equipped with consumables, and the center of gravity of the tool is determined by the presence of a power supply source such as a battery. Also, a tool that uses compressed air as a power source to drive fasteners such as nails uses compressed air supplied from an external air compressor, so the tool is not equipped with a power supply source, and the center of gravity of the tool is determined by the presence of fasteners, which are consumables.

[0086] This application is based on a Japanese patent application (Patent Application No. 2023-223548) filed on December 28, 2023, the contents of which are incorporated herein by reference.

[0087] The present invention can provide a tool that can be fitted with a hook that can be hooked onto an object to be locked, and a cover that can be attached to the tool and has a hook that can be hooked onto an object to be locked, to accommodate various usage patterns for each user.

[0088] 1A Rebar tying machine (tool) 10 Main body 10H Handle (grip) 10W Working part 10La Uneven part 10Ra Uneven part 11, 21 Hook (locking body, tool locking body) 11a, 21a Locked part 11b, 21b Supported part 11c, 21c Extension part 11d, 21d Locked convex part 11e, 21e Fastening part 12 Hook mounting part (locking part) 12a Support part 12b Hole part 14 Screw (fixing part) 15 Cover (tool cover) 15L First cover part 15R Second cover part 15La Positioning part 15Ra Positioning part 15Lb Hole part (connecting part) 15Rb Fastening part (connecting part) 16 Screw (connection part)

Claims

1. In a tool having a main body portion and a gripping portion connected to the main body portion, a locking portion is provided at different angles toward the center of gravity of the tool and enables locking of an object to be locked, and the locking portion is provided on the main body portion.

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

3. The tool according to claim 1, wherein 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.

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

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

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

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

8. The tool according to claim 1, wherein the main body portion includes a bundling portion for bundling steel bars with a wire, a battery mounting portion to which a battery is attached, and a housing portion for housing the wire.

9. A cover detachably attached to a tool having a main body portion and a gripping portion connected to the main body portion, the cover being provided with a locking portion at different angles toward the center of gravity of the tool and enabling locking of an object to be locked, and the locking portion is provided on the cover.

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

11. The tool cover according to claim 9, wherein 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.

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

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

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. The tool cover according to claim 9 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.

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

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, and 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 attachment 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. A locking body for a tool.

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. A locking body for a tool.

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

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