Hook and working machine

Abstract

To provide a user-friendly hook and a working machine equipped with the hook.SOLUTION: The hook 30 is configured to be attachable to the working machine 1 in both the first posture in which the first catch portion 34 is located on the left side of the back surface portion 31 and the second posture in which the first catch portion 34 is located on the right side of the back surface portion 31. Each of the first convex portion 37 and the second convex portion 28 of the hook 30 is disposed at a position that substantially coincides with the center of the first catch portion 34 in the up-down direction. Each of the first hole 42 and the second hole 43 of the hook 30 is configured as an elongated hole extending from a position above the center of the first catch portion 34 to a position below the center of the first catch portion 34 in the up-down direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a hook and a work machine. [Background technology]

[0002] Patent Document 1 discloses a hook that can be hooked onto a waist belt or the like of a work machine. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Chinese Utility Model No. 205085941 Summary of the Invention [Problem to be solved by the invention]

[0004] The inventors recognized that there was room for improvement in terms of usability when it came to hooks for work equipment, such as making them easier to use for both right-handed and left-handed users, increasing the number of work equipment that can be attached, and improving the ease of use when hooking carabiners, etc.

[0005] An object of the present invention is to provide a hook that is easy to use and a work machine equipped with the hook. [Means for solving the problem]

[0006] One aspect of the present invention is A base portion that can be attached to a work machine; a hook portion connected to either the left or right side of the base portion; A hook having The base portion is configured to be attachable to the work machine in either a first position in which the hook portion is located on the left side of the base portion, or a second position different from the first position in which the hook portion is located on the right side of the base portion. The hook is characterized by the above.

[0007] Another aspect of the present invention is a method for producing a semiconductor device comprising: A base portion that can be attached to a work machine; a first hole portion and a second hole portion, which are a pair of left and right holes provided in the base portion and enable the base portion to be fastened to the work machine with screws; a hook portion connected to the base portion; A hook having The base portion is configured to be attachable to the work machine in either of a first position in which the first hole portion is fastened with a screw to the left screw hole of the work machine and the second hole portion is fastened with a screw to the right screw hole of the work machine, and a second position in which the first hole portion is fastened with a screw to the right screw hole of the work machine and the second hole portion is fastened with a screw to the left screw hole of the work machine. The hook is characterized by the above.

[0008] Another aspect of the present invention is a method for producing a semiconductor device comprising: A base portion that can be attached to a work machine; a hook portion connected to the base portion; A hook having The base portion has a first base portion located on one side in the left-right direction and a second base portion located on the other side in the left-right direction, and the first base portion and the second base portion are connected to each other so as to be movable in the left-right direction. The hook is characterized by the above.

[0009] Another aspect of the present invention is a method for producing a semiconductor device comprising: A base portion that can be attached to a work machine; a hook portion connected to the base portion; A hook having The hook portion has an outer circumferential portion and an inner circumferential portion, and the outer circumferential portion has a recess. The hook is characterized by the above.

[0010] Another aspect of the present invention is a work machine equipped with the hook.

[0011] The working machine of the present invention may be expressed as an "electric working machine," "electric tool," "electrical equipment," etc., and such expressions are also valid as aspects of the present invention. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a user-friendly hook and a work machine equipped with the hook. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view of a work machine 1 to which a hook 30 according to a first embodiment is attached. [Figure 2] FIG. 2 is a perspective view of the hook 30 and the work machine 1 in a separated state, as viewed from the upper left rear side. [Figure 3] 3 is a perspective view of FIG. 2 from the rear upper right. [Figure 4] 1 is a perspective view of the work machine 1 with the hook 30 attached in a first position, as viewed from the upper left rear side. [Figure 5] FIG. 5 is a perspective view of FIG. 4 from the rear upper right. [Figure 6] 10 is a perspective view of the work machine 1 with the hook 30 attached in the second position, as viewed from the upper left rear side. FIG. [Figure 7] FIG. 7 is a perspective view of FIG. 6 from the rear upper right. [Figure 8] FIG. 2 is a perspective view of the hook 30 and the work implement 1A in a separated state, as viewed from the upper left rear side. [Figure 9] FIG. 9 is a perspective view of FIG. 8 from the rear upper right. [Figure 10] 1 is a perspective view of a work machine 1A with a hook 30 attached in a first position, as viewed from the upper left rear side. [Figure 11] 11 is a perspective view of FIG. 10 from the rear upper right. [Figure 12] 10 is a perspective view of the work machine 1A with the hook 30 attached in the second position, as viewed from the upper left rear side. FIG. [Figure 13] 13 is a perspective view of FIG. 12 from the rear upper right. [Figure 14] FIG. [Figure 15]10 is a diagram showing that the left-right width of the hook 30 is variable. [Figure 16] 10 is a perspective view of the assembly process of the hook 30 as seen from the upper right rear side. FIG. [Figure 17] FIG. 17 is a perspective view of FIG. 16 from the front upper right. [Figure 18] FIG. 17 is a rear view of FIG. 16 from a rearward perspective. [Figure 19] 10A is a perspective view of a hook 30A according to a second embodiment as viewed from the upper left rear, and FIG. 10B is a perspective view of the hook 30A as viewed from the upper right rear. [Figure 20] FIG. 11 is a perspective view of a hook 30B according to a third embodiment. [Figure 21] FIG. 10 is a side view of the first hook portion 34B of the hook 30B as viewed from the left. [Figure 22] 10 is a perspective view showing the process of attaching and detaching the carabiner 90 to the first hook portion 34B. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] (Embodiment 1) 1 to 18 relate to a hook 30 according to embodiment 1 and a work machine 1 to which the hook 30 is attached. Figures 1 and 2 and the like define the front-rear, up-down, and left-right directions of the hook 30 and the work machine 1, which are perpendicular to each other.

[0015] 1 is a perspective view of a work machine 1 to which a hook 30 according to embodiment 1 is attached. The work machine 1 is an impact driver.

[0016] The work machine 1 has a housing 10. The housing 10 is, for example, a resin molded body having a structure divided into left and right halves. The housing 10 includes a motor housing portion 11, a handle portion 12, and a battery pack mounting portion 13.

[0017] The motor housing 11 is a cylindrical part whose central axis is approximately parallel to the front-to-rear direction. The upper end of the handle 12 is connected to the middle part of the motor housing 11 in the front-to-rear direction and extends downward from said middle part. The battery pack attachment part 13 is provided at the lower end of the handle 12, and a battery pack 17 can be detachably attached thereto. The work machine 1 operates using power from the battery pack 17.

[0018] The work machine 1 has a tail cover 14 that is connected to an opening on the rear side of the motor housing portion 11 and covers the opening. The tail cover 14 is fixed to the motor housing portion 11 by screws or the like.

[0019] The work machine 1 has a hammer case 18 connected to the front of the motor housing portion 11. The hammer case 18 is made of, for example, metal, and is held by the motor housing portion 11 and extends forward from the motor housing portion 11.

[0020] The work machine 1 has a motor, a reduction gear mechanism, a spindle, a rotary impact mechanism, a fan, etc. inside the motor housing 11 and the hammer case 18. Rotation of the motor is transmitted to the spindle via the reduction gear mechanism, and the spindle drives the rotary impact mechanism. The fan is directly connected to the motor and generates cooling air to cool the motor, etc. The internal configurations of the motor housing 11 and the hammer case 18 are well known, so illustrations and further detailed explanations will be omitted.

[0021] A tool attachment portion 21 capable of attaching a tool tip 20 is provided at the front end portion of the rotary impact mechanism, i.e., at the front portion of the work machine 1. The tool tip 20, such as a bit, extends forward from the tool attachment portion 21.

[0022] The work machine 1 has a trigger switch 15 at the upper end of the handle portion 12, which the user can use to switch the motor between rotation and stop. The work machine 1 has a forward / reverse changeover switch 16 near the boundary between the motor housing portion 11 and the handle portion 12, which the user can use to switch the motor between forward and reverse rotation.

[0023] The work machine 1 has a control board inside the battery pack mounting section 13. This control board is equipped with a microcomputer and other components that control the drive of the motor. The work machine 1 has an operation panel 19 on the front upper surface of the battery pack mounting section 13. The operation panel 19 has a display section, a control mode selector switch, a lighting selector switch, and other components. A hook 30 can be detachably attached to the battery pack mounting section 13, and the battery pack mounting section 13 also functions as a hook mounting section.

[0024] Fig. 2 is a perspective view of the hook 30 and the work machine 1 in a separated state, as viewed from the upper rear left. Fig. 3 is a perspective view from the upper rear right in Fig. 2. Fig. 4 is a perspective view of the work machine 1 with the hook 30 attached in a first position, as viewed from the upper rear left. Fig. 5 is a perspective view from the upper rear right in Fig. 4. Fig. 6 is a perspective view of the work machine 1 with the hook 30 attached in a second position, as viewed from the upper rear left. Fig. 7 is a perspective view from the upper rear right in Fig. 6.

[0025] As shown in Fig. 2, the battery pack mounting section 13 has a left recess 23 and a left screw hole 25 on its left side surface. As shown in Fig. 3, the battery pack mounting section 13 has a right recess 24 and a right screw hole 26 on its right side surface.

[0026] The first position of the hook 30 shown in Figures 4 and 5 is a position for a right-handed person. The second position of the hook 30 shown in Figures 6 and 7 is a position for a left-handed person.

[0027] The hook 30 has a back surface portion 31, a first side surface portion 32, a second side surface portion 33, a first hook portion 34, and a second hook portion 35. The back surface portion 31, the first side surface portion 32, and the second side surface portion 33 are base portions of the hook 30, and are configured to be attachable to the work machine 1.

[0028] The rear surface portion 31 is a plate-like portion that is approximately perpendicular to the front-rear direction. As shown in Figures 4 and 5, the rear surface portion 31 partially covers the rear surface of the battery pack 17.

[0029] The first side surface portion 32 is the left side surface portion in the first position shown in Figures 4 and 5, and is the right side surface portion in the second position shown in Figures 6 and 7. The second side surface portion 33 is the right side surface portion in the first position shown in Figures 4 and 5, and is the left side surface portion in the second position shown in Figures 6 and 7.

[0030] The first side surface portion 32 and the second side surface portion 33 are plate-shaped portions that are approximately perpendicular to the left-right direction and face each other in the left-right direction. The first side surface portion 32 and the second side surface portion 33 bend and extend forward from both left and right end portions of the back surface portion 31. As shown in Figures 4 and 5, the first side surface portion 32 and the second side surface portion 33 partially cover the left and right side surfaces of the battery pack 17.

[0031] A first protrusion 37 is provided on the first side surface portion 32. The first protrusion 37 is a protrusion that bends toward the second side surface portion 33 and protrudes toward the second side surface portion 33. The first protrusion 37 is formed on the first side surface portion 32 by, for example, cutting and bending. The first protrusion 37 fits into the left recess 23 of the work implement 1 in the first position shown in FIGS. 4 and 5, and fits into the right recess 24 of the work implement 1 in the second position shown in FIGS. 6 and 7.

[0032] A second protrusion 38 is provided on the second side surface portion 33. The second protrusion 38 is a protrusion that bends toward the first side surface portion 32 and protrudes toward the first side surface portion 32. The second protrusion 38 is formed on the second side surface portion 33 by, for example, cutting and bending. The second protrusion 38 fits into the right recess 24 of the work implement 1 in the first position shown in FIGS. 4 and 5, and fits into the left recess 23 of the work implement 1 in the second position shown in FIGS. 6 and 7.

[0033] Each of the first protrusion 37 and the second protrusion 38 is disposed at a position that substantially coincides with the center of the first hook portion 34 in the up-down direction.

[0034] A first hole 42 is provided in the first side surface portion 32. In the first position shown in Figures 4 and 5, the first hole 42 is fastened by a left screw 39 to a left screw hole 25 of the work implement 1, and in the second position shown in Figures 6 and 7, the first hole 42 is fastened by a right screw 40 to a right screw hole 26 of the work implement 1.

[0035] A second hole 43 is provided in the second side surface portion 33. In the first position shown in Figures 4 and 5, the second hole 43 is fastened by a left-side screw 39 to a right-side screw hole 26 of the work implement 1, and in the second position shown in Figures 6 and 7, the second hole 43 is fastened by a right-side screw 40 to a left-side screw hole 25 of the work implement 1.

[0036] Each of the first hole 42 and the second hole 43 is configured as an elongated hole extending from a position above the center of the first hook 34 to a position below the center of the first hook 34 in the vertical direction.

[0037] The first hook portion 34 is U-shaped and protrudes rearward from the rear surface of the back portion 31. The first hook portion 34 extends parallel to the vertical direction when viewed from behind. The first hook portion 34 can be suitably used as a carabiner hook for hanging the work implement 1 from a carabiner. The first hook portion 34 is integrally connected to the rear surface of the back portion 31 at two locations that are spaced apart in the vertical direction and at the same position in the left-right direction, for example, by welding. The back portion 31 has protrusions 46 and 47 at its upper and lower ends, which bulge outward and circumvent the connection between the first hook portion 34 and the back portion 31. The first hook portion 34 may be inclined at a predetermined angle or less, for example, 30° or less, relative to the vertical direction when viewed from behind.

[0038] The first hook portion 34 is located on the left side of the back surface portion 31 in the first position shown in FIGS. 4 and 5, and is located on the right side of the back surface portion 31 in the second position shown in FIGS.

[0039] The second hook portion 35 is U-shaped and protrudes rearward from the rear surface of the back portion 31. The second hook portion 35 extends parallel to the left-right direction when viewed from behind. The second hook portion 35 can be suitably used as a fall prevention cord locking portion for attaching a fall prevention cord 56 to the work machine 1. The second hook portion 35 is integrally connected to the rear surface of the back portion 31 at two locations that are spaced apart in the left-right direction and at the same vertical position, for example, by welding. The second hook portion 35 may be inclined at a predetermined angle or less, for example, 30° or less, relative to the left-right direction when viewed from behind.

[0040] The second hook portion 35 is located on the right side of the back surface portion 31 in the first position shown in FIGS. 4 and 5, and is located on the left side of the back surface portion 31 in the second position shown in FIGS.

[0041] In the up-down direction, the center position of the first hook portion 34 and the center position of the second hook portion 35 coincide with each other. The first hook portion 34 and the second hook portion 35 are contained within the range of the battery pack mounting portion 13 in the left-right direction (they do not protrude in the left-right direction from the battery pack mounting portion 13). The first hook portion 34 is larger than the second hook portion 35. Specifically, the first hook portion 34 protrudes rearward by a longer length than the second hook portion 35. Furthermore, the length of the first hook portion 34 in the up-down direction is longer than the length of the second hook portion 35 in the left-right direction.

[0042] 8 to 13 show the same as in FIGS. 2 to 7 except that the attachment target of the hook 30 is changed from the work machine 1 to a work machine 1A. The work machine 1 is an electric power tool with a rated voltage of 18V (hereinafter referred to as an "18V tool"), whereas the work machine 1A is an electric power tool with a rated voltage of 10.8V (hereinafter referred to as a "10.8V tool"). Note that the rated voltages shown here are just an example and can be changed as desired.

[0043] The battery pack mounting section 13A of the work machine 1A is configured to correspond to the battery pack mounting section 13 of the work machine 1. The width of the battery pack mounting section 13A in the left-right direction is smaller than the width of the battery pack mounting section 13 in the left-right direction.

[0044] The left recess 23A, right recess 24A, left screw hole 25A, and right screw hole 26A of the work machine 1A are configured to correspond to the left recess 23, right recess 24, left screw hole 25, and right screw hole 26 of the work machine 1, respectively.

[0045] The hook 30 is configured so that the opposing distance between the first side surface portion 32 and the second side surface portion 33 can be changed, and as described above, can be attached to the battery pack attachment portion 13 of the work machine 1 in a first position and a second position, and can also be attached to the battery pack attachment portion 13A of the work machine 1A in a first position and a second position as shown in Figures 8 to 13. The configuration for changing the opposing distance between the first side surface portion 32 and the second side surface portion 33 (including the notch 81 shown in Figure 12) will be described later.

[0046] Figure 14 is an exploded perspective view of the hook 30. In the following description, the up-down and left-right directions of the hook 30 are based on the state in Figure 14 (a state corresponding to the first position shown in Figures 4 and 5, etc.). In the second position shown in Figures 6 and 7, etc., the up-down and left-right directions are reversed.

[0047] The base portion 70 of the hook 30 has a first base portion 71 and a second base portion 72. The first base portion 71 and the second base portion 72 are each a single sheet metal part. The first base portion 71 is located on the left, and the second base portion 72 is located on the right. The first base portion 71 and the second base portion 72 are connected (combined) to each other so as to be movable in the left-right direction.

[0048] The first base portion 71 includes a first rear portion 73 and the aforementioned first side portion 32. The second base portion 72 includes a second rear portion 74 and the aforementioned second side portion 33. The first rear portion 73 and the second rear portion 74 constitute the aforementioned rear portion 31. The first hook portion 34 is connected to the rear surface of the first rear portion 73, and the second hook portion 35 is connected to the rear surface of the second rear portion 74.

[0049] The first base portion 71 has a first guide portion 75, a first locking portion 79, and a notch 81. The second base portion 72 has a second guide portion 76 and a second locking portion 80.

[0050] The first guide portion 75 is a portion that extends to face the front surface of the first rear portion 73. The first guide portion 75 is connected to the lower end of the first rear portion 73 by a first folded portion 77 and has a hook shape that extends upward. The second rear portion 74 passes through the gap between the first guide portion 75 and the first rear portion 73.

[0051] The second guide portion 76 is a portion that extends to face the rear surface of the second rear portion 74. The second guide portion 76 is connected to the upper end of the second rear portion 74 by a second folded portion 78 and has a hook shape that extends downward. The first rear portion 73 passes through the gap between the second guide portion 76 and the second rear portion 74.

[0052] The first locking portion 79 is located at the upper right end of the first rear portion 73 and has a hook shape that protrudes upward and then extends to the left. The first locking portion 79 can be hooked onto the second folded portion 78.

[0053] The second locking portion 80 is located at the lower left end of the second back portion 74 and has a hook shape that protrudes downward and then extends to the right. The second locking portion 80 can be hooked onto the first folded portion 77.

[0054] The notch 81 is provided in approximately the center in the up-down direction of the right end of the first rear surface portion 73 and extends to the left. The notch 81 is provided to allow the base of the second hook portion 35 to pass through (to avoid interference with the second hook portion 35), as shown in FIG.

[0055] The first base portion 71 and the second base portion 72 are movable relative to each other in the left-right direction when combined (hereinafter referred to as the "combined state") in which the first back portion 73 enters the gap between the second back portion 74 and the second guide portion 76 and the second back portion 74 enters the gap between the first back portion 73 and the first guide portion 75, and are configured so that the opposing distance between the first side portion 32 and the second side portion 33 can be changed as shown in Figure 15.

[0056] 16 to 18 each show the assembly process of the hook 30. FIG.

[0057] The first base portion 71 and the second base portion 72, which are not combined with each other, are brought closer to each other by inserting the first back portion 73 into the gap between the second back portion 74 and the second guide portion 76 and inserting the second back portion 74 into the gap between the first back portion 73 and the first guide portion 75 (Figure 16(A) → (C), Figure 17(A) → (C), Figure 18(A) → (C)).

[0058] 16(B), (C) and 17(B), (C), the first rear portion 73 is offset downward relative to the second rear portion 74 by a predetermined length (a length corresponding to the height of the first locking portion 79 and the second locking portion 80) so that the first locking portion 79 can pass under the second folded portion 78 and so that the second locking portion 80 can pass over the first folded portion 77. Here, as shown in FIGS. 16(C) and 18(C), the right end of the cutout 81 widens upward, so that even when the first rear portion 73 is offset downward relative to the second rear portion 74, the base of the left part of the second hook portion 35 fits into the right end of the cutout 81, preventing interference.

[0059] As shown in Figures 16(C), 17(C), and 18(C), the first locking portion 79 passes under the second folded portion 78 and the second locking portion 80 passes over the first folded portion 77. Then, as shown in Figures 16(D), 17(D), and 18(D), the second base portion 72 is moved downward relative to the first base portion 71, and as shown in Figures 16(E), 17(E), and 18(E), the second base portion 72 is moved rightward relative to the first base portion 71. This results in a state in which the first locking portion 79 is hooked onto the second folded portion 78 and the first locking portion 80 is hooked onto the first folded portion 77 (hereinafter referred to as the "locked state").

[0060] The first base portion 71 and the second base portion 72 can be separated by reversing the assembly procedure.

[0061] In the locked state, the first rear portion 73 is restricted from moving relative to the first rear portion 73 in the vertical direction by the engagement between the first locking portion 79 and the second folded portion 78. Similarly, in the locked state, the second rear portion 74 is restricted from moving relative to the first rear portion 73 in the vertical direction by the engagement between the second locking portion 80 and the first folded portion 77. Therefore, in the locked state, the first base portion 71 and the second base portion 72 are configured so as not to move apart from each other in the vertical direction.

[0062] When the first base portion 71 and the second base portion 72 are brought even closer to each other from the locked state (the opposing distance between the first side surface portion 32 and the second side surface portion 33 is reduced), the first base portion 71 and the second base portion 72 are configured not to move away from each other in the vertical direction due to the engagement between the root portion of the second hook portion 35 and the notch portion 81. The root portion of the left part of the second hook portion 35 comes into contact with the left end of the notch portion 81, thereby restricting relative movement of the first base portion 71 and the second base portion 72 in a direction in which they come even closer to each other (the opposing distance between the first side surface portion 32 and the second side surface portion 33 is further reduced).

[0063] In the locked state, the rearward movement of the first rear portion 73 is restricted by the second guide portion 76, and the forward movement of the second rear portion 74 is restricted by the first guide portion 75, so that the first base portion 71 and the second base portion 72 do not move away from each other in the front-to-rear direction. The same is true when the first base portion 71 and the second base portion 72 are brought closer to each other than in the locked state.

[0064] In the locked state, the upper sides of the first rear portion 73 and the second rear portion 74 are aligned in the vertical direction, and the lower sides of the first rear portion 73 and the second rear portion 74 are aligned in the vertical direction.

[0065] This embodiment has the following advantages.

[0066] (1) The hook 30 is configured to be attachable to the work machine 1 in either a first position ( FIGS. 4 and 5 ) in which the first hook portion 34 is located on the left side of the rear portion 31, or a second position ( FIGS. 6 and 7 ) in which the first hook portion 34 is located on the right side of the rear portion 31. Therefore, the hook 30 can be easily used by both right-handed and left-handed users by selecting between the first and second positions. That is, in the first position, the first hook portion 34, which is larger in size than the second hook portion 35, can be positioned on the side of the right-handed user holding the work machine 1, and in the second position, the first hook portion 34 can be positioned on the side of the left-handed user holding the work machine 1. Therefore, for both right-handed and left-handed users, the first hook portion 34 can be prevented from hitting an external member such as a wall or interfering with the user's forearm.

[0067] (2) The hook 30 is configured to be attachable to the work machine 1 in either of the following positions: a first position ( FIGS. 4 and 5 ) in which the first hole 42 is fastened with a left-side screw 39 into the left-side screw hole 25 ( FIG. 2 ) of the work machine 1 and the second hole 43 is fastened with a right-side screw 40 into the right-side screw hole 26 ( FIG. 3 ) of the work machine 1; or a second position ( FIGS. 6 and 7 ) in which the first hole 42 is fastened with a screw into the right-side screw hole 26 of the work machine 1 and the second hole 43 is fastened with a screw into the left-side screw hole 25 of the work machine 1. If the first position is easy for right-handed users to use, the second position is easy for left-handed users to use. Therefore, the hook 30 can be easily used by both right-handed users and left-handed users by selecting between the first position and the second position.

[0068] (3) The first protrusion 37 and the second protrusion 28 of the hook 30 are each positioned so as to substantially coincide with the center of the first hook portion 34 in the vertical direction. Therefore, the vertical positions of the first hook portion 34 are substantially the same in the first position and the second position, providing the same ease of use for both right-handed and left-handed users. Furthermore, compared to when separate protrusions for the first position and second position are provided, the number of protrusions can be reduced, preventing an increase in processing man-hours and the protrusions from becoming a hindrance.

[0069] (4) The first hole 42 and the second hole 43 of the hook 30 are each configured as an elongated hole that extends in the vertical direction from a position above the center of the first hook portion 34 to a position below the center of the first hook portion 34. Therefore, a single elongated hole can accommodate both the first position and the second position. This also makes it easier to accommodate differences in the positional relationship between the recess and the screw hole of the work machine due to differences in manufacturers, etc., and increases the number of work machines to which the hook 30 can be attached.

[0070] (5) The base portion 70 (FIG. 16) of the hook 30 has a first base portion 71 and a second base portion 72 that are connected to each other so as to be movable in the left-right direction. Therefore, as shown in FIG. 15, the opposing distance between the first side surface portion 32 and the second side surface portion 33 can be varied in a variety of ways, making it possible to attach the hook 30 to a variety of work machines with different widths of the hook attachment portion (increasing the number of work machines to which the hook 30 can be attached).

[0071] (6) The first base portion 71 and the second base portion 72 in the locked state shown in Figures 16(E), 17(E), and 18(E) are combined together so as not to be separated from each other in the front-to-back, up-down, and left-to-right directions, which makes the hook 30 highly portable.

[0072] (7) The notch 81 guides the base of the second hook 35 and prevents the first base 71 and the second base 72 from moving further away from each other in the vertical direction when the first base 71 and the second base 72 are brought closer to each other from the locked state (when the opposing distance between the first side surface 32 and the second side surface 33 is reduced). This improves operability when bringing the first base 71 and the second base 72 closer to each other from the locked state.

[0073] (Embodiment 2) FIG. 19 shows a hook 30A according to the second embodiment. In the hook 30A, the first hole 42 and the second hole 43 formed as elongated holes in the hook 30 of the first embodiment are replaced with a pair of upper and lower first hole 42A and a pair of upper and lower second hole 43A. The pair of first hole 42A is provided above and below the center of the first hook 34 in the vertical direction. Similarly, the pair of second hole 43A is provided above and below the center of the first hook 34 in the vertical direction. The upper first hole 42A and the second hole 43A are used when attaching the hook in the first position. The lower first hole 42A and the second hole 43A are used when attaching the hook in the second position.

[0074] (Embodiment 3) Fig. 20 is a perspective view of a hook 30B according to the third embodiment. Fig. 21 is a side view of the first hook portion 34B of the hook 30B as viewed from the left. In the hook 30B, the first hook portion 34 of the hook 30 of the first embodiment is replaced with the first hook portion 34B. The first hook portion 34B has an outer peripheral recess 57 on the outer periphery and an inner peripheral recess 58 on the inner periphery.

[0075] 22(A) to 22(C) show the process of attaching the carabiner 90 to the first hook portion 34B. The user presses the gate portion 91 (movable portion) of the carabiner 90 against any of the outer peripheral recesses 57 of the first hook portion 34B as shown in Fig. 22(A), opens the gate portion 91 as shown in Fig. 22(B), and attaches the carabiner 90 to the first hook portion 34B with the gate portion 91 penetrating the inside of the first hook portion 34B as shown in Fig. 22(C).

[0076] 22(D) to 22(G) show the process of removing the carabiner 90 from the first hook portion 34B. The user presses the gate portion 91 of the carabiner 90 against any of the inner recesses 58 as shown in FIG. 22(D), opens the gate portion 91 as shown in FIG. 22(E), and then protrudes from the inside of the first hook portion 34B as shown in FIG. 22(F). This allows the carabiner 90 to be removed from the hook 30B as shown in FIG. 22(G).

[0077] According to this embodiment, by pressing the gate portion 91 of the carabiner 90 against the outer peripheral recess 57 or the inner peripheral recess 58 of the first hook portion 34B, misalignment of the gate portion 91 is suppressed compared to when the gate portion 91 is pressed against a straight portion, making it easier to attach and remove the carabiner 90.

[0078] Although the present invention has been described above using the embodiments as examples, the present invention is not limited to the embodiments. Various modifications can be made to the details specifically described in the embodiments within the scope of the claims.

[0079] The rated voltage and other values ​​of the work machine exemplified as specific values ​​in the embodiments do not limit the scope of the invention in any way, and can be changed as desired to suit the required specifications.

[0080] The number of hooking portions of the hook of the present invention is not limited to two as exemplified in the embodiment, but may be one or three or more. The base portion of the hook of the present invention is not limited to a structure divided into two parts, left and right, but may be a single member (e.g., a sheet metal part) as a whole.

[0081] The work implement of the present invention is not limited to an impact driver, but may be of other types such as an impact wrench, a driver drill, etc. The work implement of the present invention is not limited to a cordless type, but may be a corded type that is powered by receiving power from an external power source via a power cord. [Explanation of symbols]

[0082] 1...working machine, 10...housing, 11...motor housing, 12...handle portion, 13...battery pack mounting portion (hook mounting portion), 14...tail cover, 15...trigger switch, 16...forward / reverse switch, 17...battery pack, 18...hammer case, 19...operation panel, 20...bit, 21...tip tool mounting portion, 23...left recess, 24...right recess, 25...left screw hole, 26...right screw hole, 30...hook, 31...back portion, 32...first side portion, 33...second side portion, 34...first hook portion, 35...second 2 hook portion, 37...first convex portion, 38...second convex portion, 39...left side screw, 40...right side screw, 42...first hole portion, 43...second hole portion, 46, 47...protrusion portion, 57...outer peripheral recess, 58...inner peripheral recess, 70...base portion, 71...first base portion, 72...second base portion, 73...first back portion, 74...second back portion, 75...first guide portion, 76...second guide portion, 77...first folded portion, 78...second folded portion, 79...first locking portion, 80...second locking portion, 81...notch portion, 90...carabiner, 91...gate portion (movable portion).

Claims

1. A base portion that can be attached to a work machine; a hook portion connected to either the left or right side of the base portion; A hook having The base portion is configured to be attachable to the work machine in either a first position in which the hook portion is located on the left side of the base portion, or a second position different from the first position in which the hook portion is located on the right side of the base portion. A hook characterized by:

2. 2. The hook of claim 1, a first hole portion and a second hole portion, which are a pair of left and right holes provided on the base portion and allow the base portion to be fastened to the work machine with a screw; In the first posture, the first hole portion is fastened with a screw into a left screw hole of the work machine, and the second hole portion is fastened with a screw into a right screw hole of the work machine, In the second posture, the first hole portion is fastened with a screw to the right screw hole of the work machine, and the second hole portion is fastened with a screw to the left screw hole of the work machine. A hook characterized by:

3. A base portion that can be attached to a work machine; a first hole portion and a second hole portion, which are a pair of left and right holes provided in the base portion and allow the base portion to be fastened to the work machine with screws; a hook portion connected to the base portion; A hook having The base portion is configured to be attachable to the work machine in either of a first position in which the first hole portion is fastened with a screw into the left screw hole of the work machine and the second hole portion is fastened with a screw into the right screw hole of the work machine, and a second position in which the first hole portion is fastened with a screw into the right screw hole of the work machine and the second hole portion is fastened with a screw into the left screw hole of the work machine. A hook characterized by:

4. The hook according to claim 1 or 3, a pair of left and right protrusions provided on the base portion that can be engaged with a pair of left and right recesses of the work machine, A hook characterized by:

5. 5. The hook according to claim 4, Each of the pair of left and right protrusions is disposed at a position that substantially coincides with the center of the hook portion in the up-down direction. A hook characterized by:

6. 4. The hook according to claim 3, In the first position, the hook portion is located on the left side of the base portion, In the second position, the hook portion is located at the right side of the base portion. A hook characterized by:

7. 4. The hook according to claim 2 or 3, Each of the first hole portion and the second hole portion is configured as an elongated hole extending from a position above the center of the hook portion to a position below the center of the hook portion in the vertical direction. A hook characterized by:

8. 4. The hook according to claim 2 or 3, The first hole portion and the second hole portion are configured as a pair of upper and lower hole portions provided at a position above the center of the hook portion and a position below the center of the hook portion in the vertical direction, respectively. A hook characterized by:

9. 4. The hook according to claim 2 or 3, The base portion is a back surface portion to which the hook portion is connected; a first side portion extending forward from one end of the rear portion in the left-right direction and having the first hole; a second side portion extending forward from the other end of the rear portion in the left-right direction and having the second hole; A hook characterized by:

10. A base portion that can be attached to a work machine; a hook portion connected to the base portion; A hook having The base portion has a first base portion located on one side in the left-right direction and a second base portion located on the other side in the left-right direction, and the first base portion and the second base portion are connected to each other so as to be movable in the left-right direction. A hook characterized by:

11. 11. The hook of claim 10, the first base portion has a first restricting portion that restricts movement of the second base portion, and / or the second base portion has a second restricting portion that restricts movement of the first base portion; A hook characterized by:

12. 11. The hook of claim 10, The first base portion a first back portion; a first guide portion facing one surface of the first rear surface portion in the front-rear direction, The second base portion is A second back portion; a second guide portion facing the other surface of the second rear surface portion in the front-rear direction, the first rear portion is inserted into a gap between the second rear portion and the second guide portion, The second rear portion is inserted into a gap between the first rear portion and the first guide portion. A hook characterized by:

13. 13. The hook of claim 12, the first guide portion is connected to one end of the first rear portion in the up-down direction by a first folded portion, the second guide portion is connected to the other end of the second rear portion in the up-down direction by a second folded portion, the first base portion has a first restriction portion configured to be hooked on the second folded portion and prevent the first base portion from moving in the one direction in the left-right direction relative to the second base portion, the second base portion has a second restricting portion configured to be hooked onto the first folded portion and prevent the second base portion from moving in the other of the left and right directions relative to the first base portion; A hook characterized by:

14. A base portion that can be attached to a work machine; a hook portion connected to the base portion; A hook having The hook portion has an outer circumferential portion and an inner circumferential portion, and the outer circumferential portion has a recess. A hook characterized by:

15. A work machine equipped with the hook according to any one of claims 1, 3, 10 and 14.

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