Support unit

Abstract

To provide a technique capable of suppressing a user's feeling of discomfort when operating a hook.SOLUTION: A support unit supports a work machine. The support unit comprises a harness to be worn on a user, and a pad unit coming into contact with the user. The pad unit includes a base member to be attached to the harness, and a hook to be operated by the user, detachably attached to the work machine, and attached to the base member so as to rotationally turn relative to the base member. A position of a rotational axis of the hook relative to the base member does not change even when the hook rotationally turns.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The technology disclosed in this specification relates to a support unit. [Background technology]

[0002] Patent Document 1 discloses a support unit. The support unit supports a working machine. The support unit includes a harness worn by a user and a pad unit that comes into contact with the user. The pad unit includes a base member attached to the harness, and a hook that is operated by the user, removably supports the working machine, and is attached to the base member so as to be rotatable relative to the base member. As the hook rotates, the position of the rotation axis of the hook relative to the base member changes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] U.S. Patent No. 9101201 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above support unit, the position of the rotation axis of the hook relative to the base member changes as the hook rotates, so the user feels uncomfortable when operating the hook. This specification provides a technology that can suppress the user from feeling uncomfortable when operating the hook. [Means for solving the problem]

[0005] This specification discloses a support unit. The support unit supports a work machine. The support unit includes a harness worn by a user and a pad unit that comes into contact with the user. The pad unit includes a base member attached to the harness, and a hook that is operated by the user, removably attached to the work machine, and attached to the base member so as to be rotatable relative to the base member. The position of the rotation axis of the hook relative to the base member does not change even when the hook rotates.

[0006] According to the above configuration, even if the hook rotates, the position of the rotation axis of the hook relative to the base member does not change, so that it is possible to suppress a sense of discomfort felt by the user when operating the hook. [Brief description of the drawings]

[0007] [Figure 1] FIG. 2 is a side view of the working machine 2 and the support unit 10 of the embodiment. [Diagram 2] FIG. 2 is a perspective view of a support unit 10 according to the embodiment. [Diagram 3] FIG. 2 is a perspective view of a pad unit 14 according to the embodiment. [Figure 4] FIG. 2 is a perspective view of a pad unit 14 according to the embodiment. [Diagram 5] FIG. 2 is an exploded perspective view of the pad unit 14 according to the embodiment. [Figure 6] 1 is an exploded perspective view of a hook 40, an operating lever 42, a holder 44, and a biasing member 46 according to an embodiment of the present invention. [Figure 7] 1 is a side view of the hook 40, the holder 44, and the biasing member 46 in the vicinity of the support portion 100 in the embodiment. [Figure 8] 4 is a cross-sectional view of the vicinity of a through hole 108 of the pad unit 14 of the embodiment. FIG. [Figure 9] 2 is a cross-sectional view of the pad unit 14 of the embodiment when the hook 40 is located at a first position. FIG. [Figure 10] 4 is a cross-sectional view of the pad unit 14 of the embodiment when the hook 40 is located at a second position. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Representative and non-limiting examples of the present invention are described in detail below with reference to the drawings. This detailed description is intended simply to provide those skilled in the art with details for implementing preferred examples of the present invention, and is not intended to limit the scope of the present invention. Additionally, the additional features and inventions disclosed can be used separately or together with other features and inventions to provide further improved support units, methods of making and using the same.

[0009] In addition, the combinations of features and steps disclosed in the following detailed description are not essential for implementing the present invention in the broadest sense, but are specifically described only to illustrate representative embodiments of the present invention. Furthermore, the various features of the following representative embodiments and the various features described in the claims do not have to be combined in the exact manner of the embodiments described herein or in the order listed in order to provide additional and useful embodiments of the present invention.

[0010] All features described in the specification and / or claims are intended to be disclosed individually and independently of one another as limitations to the specific features described in the original disclosure and claims, apart from the configuration of features described in the examples and / or claims. Furthermore, all numerical ranges and group or aggregate descriptions are intended to disclose intermediate configurations thereof as limitations to the specific features described in the original disclosure and claims.

[0011] In one or more embodiments, the hook may include a hook body. The hook body may include a support portion that supports a work machine and a barb portion that protrudes from the support portion. The barb portion may be disposed at a tip end of the support portion.

[0012] According to the above configuration, even if the hook is erroneously operated, the working machine stops at the barb, thereby making it possible to prevent the working machine from unintentionally coming off the hook.

[0013] In one or more embodiments, the base member may include a main body and a protrusion protruding from the main body. The protrusion may include an abutment surface that abuts against the work machine and pushes the work machine in a direction away from the hook when the hook rotates while the work machine is supported by the hook.

[0014] In a configuration in which the base member does not have a protrusion, even if the hook rotates, the working machine is unlikely to come off the hook. According to the above configuration, when the hook rotates, the abutment surface abuts against the working machine and pushes it in a direction in which the working machine comes off the hook. This makes it possible to easily remove the working machine from the hook.

[0015] In one or more embodiments, the base member may have a facing surface facing the user and a non-facing surface opposite the facing surface, and the hook may be spaced from the non-facing surface.

[0016] According to the above configuration, even when the hook rotates, the hook does not come into contact with the non-opposing surface, and therefore, it is possible to suppress a frictional force from being applied to the hook when the hook rotates.

[0017] In one or more embodiments, the hook may rotate between a first position and a second position. The pad unit may include a retaining member attached to the base member and disposed in a direction in which the working machine is disengaged from the hook relative to the working machine when the hook is positioned at the first position with the working machine supported by the hook, and a stopper protruding from the base member and coming into contact with the hook when the hook is positioned at the first position.

[0018] According to the above configuration, the degree of freedom in arranging the anti-slip member and the stopper can be increased compared to a configuration in which the anti-slip member and the stopper are configured as a single member.

[0019] In one or more embodiments, the position of the retention member relative to the base member may be fixed.

[0020] In a configuration in which the position of the anti-slip member relative to the base member changes, the working implement may come off the hook even when the hook is in the first position due to the change in the position of the anti-slip member relative to the base member. With the above configuration, it is possible to prevent the working implement from coming off the hook when the hook is in the first position.

[0021] In one or more embodiments, the pad unit may include a biasing member secured to the base member and biasing the hook from the second position toward the first position.

[0022] According to the above configuration, when no force resisting the biasing force of the biasing member is applied to the hook, the hook is located in the first position, which makes it possible to prevent the working implement from coming off the hook even if the user accidentally touches the hook.

[0023] (Example) As shown in FIG. 1, the support unit 10 is worn by a user when in use. The support unit 10 supports a working machine 2. The working machine 2 is a handheld working machine. The working machine 2 is, for example, a brush cutter that cuts grass growing from the ground. The working machine 2 includes a pole 4, a supported member 6 fixed to the pole 4, and a handle unit 8 fixed to the pole 4. The user holds the handle unit 8 in his / her hand and performs work using the working machine 2 with the supported member 6 supported by the support unit 10. This allows the user to easily handle the working machine 2.

[0024] 2, the support unit 10 includes a harness 12 and a pad unit 14. The harness 12 is worn by a user. The harness 12 includes a back panel 18, shoulder belts 20, shoulder buckles 22, an attachment band 24, a waist belt 26, and an auxiliary belt 28.

[0025] The back panel 18 faces the user's back when the harness 12 is worn by the user.

[0026] The shoulder belt 20 is attached to the back panel 18. The shoulder belt 20 is worn on the shoulder of the user. The shoulder buckle 22 is attached to the shoulder belt 20. The shoulder buckle 22 is disposed on the front side of the chest of the user. The shoulder buckle 22 is operated by the user when putting the shoulder belt 20 on the user and when removing it from the user. The attachment band 24 is attached to the back panel 18 and the shoulder buckle 22. The attachment band 24 is disposed near the waist of the user.

[0027] The waist belt 26 is attached to the back panel 18. The waist belt 26 is worn around the waist of the user.

[0028] The auxiliary belt 28 is attached to the back panel 18 and the mounting band 24. The auxiliary belt 28 is attached to the shoulder belt 20 via an auxiliary band 30. The auxiliary belt 28 is worn around the side of the user.

[0029] The pad unit 14 is attached to the mounting band 24. The pad unit 14 is placed near the user's waist. The pad unit 14 corresponds to a waist pad. As shown in FIG. 3, the pad unit 14 includes a base member 34, a pad 36, a stopper 38, a hook 40, an operating lever 42, a holder 44, a biasing member 46 (see FIG. 6), and a retaining member 48. Hereinafter, the direction in which the shaft 76 of the hook 40 extends is referred to as the front-rear direction, the direction perpendicular to the front-rear direction is referred to as the left-right direction, and the direction perpendicular to the front-rear direction and the left-right direction is referred to as the up-down direction.

[0030] The base member 34 is made of, for example, a resin material. The resin material is, for example, polyethylene. The base member 34 includes a main body portion 50, an attachment portion 52, a protruding portion 54, and a hook support portion 56.

[0031] The main body 50 has a generally flat plate shape. The main body 50 has a first surface 60 and a second surface 62 opposite to the first surface 60. As shown in FIG. 4, the pad 36 is fixed to the second surface 62. The pad 36 is made of a cushioning material. The cushioning material is, for example, a mixture of ethylene-vinyl acetate copolymer and polyethylene. When the pad unit 14 is attached to the attachment band 24 (see FIG. 2), the second surface 62 faces the user, and the pad 36 comes into contact with the user's waist.

[0032] As shown in Fig. 3, the mounting portion 52 protrudes to the right from the first surface 60. The mounting portion 52 is disposed near the upper end of the first surface 60. The mounting portion 52 has a through hole 52a extending in the front-rear direction. As shown in Fig. 2, the mounting band 24 passes through the through hole 52a.

[0033] As shown in FIG. 3, the protrusion 54 protrudes to the right from the first surface 60. The protrusion 54 is disposed from a position between the upper end of the first surface 60 and the center position in the up-down direction to the lower end of the first surface 60. The protrusion 54 has a frustum shape. The protrusion 54 has an abutment surface 66 that is away from the first surface 60. The abutment surface 66 corresponds to the top surface of the protrusion 54. The distance between the abutment surface 66 and the first surface 60, i.e., the height of the protrusion 54 in the direction perpendicular to the first surface 60, is lower than the height of the attachment portion 52 in the direction perpendicular to the first surface 60.

[0034] 5, the hook support portion 56 protrudes to the right from the first surface 60. The hook support portion 56 is disposed between the attachment portion 52 and the protruding portion 54. The hook support portion 56 includes a first hook support portion 68 and a second hook support portion 70. The first hook support portion 68 and the second hook support portion 70 have a generally truncated pyramid shape.

[0035] The first hook support portion 68 is separated from the second hook support portion 70 in the front-rear direction. The first hook support portion 68 has a first top surface 68a, a first shaft support groove 68b, and one or more (two in this embodiment) first insertion holes 68c. The first top surface 68a is separated from the first surface 60. The distance between the first top surface 68a and the first surface 60, i.e., the height of the first hook support portion 68 in a direction perpendicular to the first surface 60, is higher than the height of the mounting portion 52 in a direction perpendicular to the first surface 60. The first shaft support groove 68b is recessed from the first top surface 68a. The first shaft support groove 68b extends in the front-rear direction. The first shaft support groove 68b is connected to a surface of the first hook support portion 68 facing the second hook support portion 70. The two first insertion holes 68c are recessed from the first top surface 68a.

[0036] The second hook support portion 70 has a second top surface 70a, a second shaft support groove 70b, and one or more (two in this embodiment) second insertion holes 70c. The second top surface 70a is away from the first surface 60. The distance between the second top surface 70a and the first surface 60, i.e., the height of the second hook support portion 70 in a direction perpendicular to the first surface 60, is approximately the same as the height of the first hook support portion 68 in a direction perpendicular to the first surface 60. The second shaft support groove 70b is recessed from the second top surface 70a. The second shaft support groove 70b extends in the front-rear direction. The second shaft support groove 70b is connected to a surface of the second hook support portion 70 facing the first hook support portion 68. The second shaft support groove 70b is aligned with the first shaft support groove 68b in the front-rear direction. The two second insertion holes 70c are recessed from the second top surface 70a.

[0037] The stopper 38 protrudes to the right from the first surface 60. The stopper 38 is disposed between the mounting portion 52 and the hook support portion 56. The stopper 38 is connected to the lower end of the mounting portion 52 and the first surface 60. The stopper 38 is formed integrally with the base member 34.

[0038] The hook 40 is made of, for example, a metal material. The metal material is, for example, iron. As shown in Fig. 6, the hook 40 includes a support 74, a shaft 76, and a hook main body 78. The support 74 includes a first main body support portion 82, a second main body support portion 84, and an operating portion 86. The support 74 is formed by bending a single plate member.

[0039] The first main body support portion 82 has a first shaft through hole 90. The first shaft through hole 90 penetrates the first main body support portion 82 in the front-rear direction.

[0040] The second body support portion 84 is separated in the front-rear direction from the first body support portion 82. The second body support portion 84 has a second shaft through hole 92. The second shaft through hole 92 penetrates the second body support portion 84 in the front-rear direction.

[0041] The operating portion 86 connects the upper end of the first body support portion 82 and the upper end of the second body support portion 84. The operating portion 86 extends upward and to the right from the first body support portion 82 and the second body support portion 84.

[0042] The shaft 76 has a generally cylindrical shape extending in the front-rear direction. The shaft 76 passes through the first shaft through-hole 90 and the second shaft through-hole 92. As shown in FIG. 5, the shaft 76 is received in the first shaft support groove 68b and the second shaft support groove 70b. This allows the hook 40 to be attached to the base member 34 rotatably around the rotation axis AX relative to the base member 34. The rotation axis AX extends in the front-rear direction. The position of the rotation axis AX relative to the base member 34 is fixed. That is, the position of the rotation axis AX relative to the base member 34 does not change even if the hook 40 rotates. In addition, the hook 40 is always separated from the first surface 60 and the protrusion 54 of the base member 34.

[0043] As shown in FIG. 6, the hook body 78 includes a first fixing portion 96, a second fixing portion 98, a support portion 100, and a barb portion .

[0044] The first fixed portion 96 extends in the front-rear direction. The front end of the first fixed portion 96 is fixed to the lower end of the first main body support portion 82. The rear end of the first fixed portion 96 is fixed to the lower end of the second main body support portion 84. The first fixed portion 96 is immovable with respect to the support body 74.

[0045] The second fixing portion 98 protrudes upward from the first fixing portion 96. The second fixing portion 98 is disposed between the first main body support portion 82 and the second main body support portion 84.

[0046] The support part 100 protrudes from the first fixed part 96. As shown in Fig. 7, the support part 100 is curved in an arc shape about the rotation axis AX. The distance between the center of the support part 100 and the rotation axis AX is approximately constant in the longitudinal direction of the support part 100.

[0047] In the longitudinal direction of the support part 100, the support part 100 has a first region 100a extending from one end to the boundary position BP, and a second region 100b extending from the boundary position BP to the other end. The cross-sectional shape of the first region 100a is approximately constant from one end to the boundary position BP. When working using the working machine 2, the first region 100a is inserted into the opening 6a of the supported member 6 of the working machine 2. This allows the support part 100 to support the supported member 6. In FIG. 7, the supported member 6 is illustrated by a dashed line. The second region 100b gradually becomes thinner from the boundary position BP toward the other end. The second region 100b corresponds to the tip of the support part 100.

[0048] The return portion 102 is disposed in the second region 100b. The return portion 102 protrudes from the second region 100b toward the shaft 76. A protruding height H1 of the return portion 102 gradually increases from the boundary position BP to the top position TP, and gradually decreases from the top position TP to the other end of the support portion 100. The return portion 102 has a curved shape between the boundary position BP and the top position TP, and has a curved shape between the top position TP and the other end of the support portion 100.

[0049] As shown in Fig. 6, the operating lever 42 is fixed to an operating unit 86. The operating lever 42 is made of, for example, a resin material. The resin material is, for example, nylon. When the operating unit 86 is operated by a user via the operating lever 42, the hook 40 rotates around the rotation axis AX.

[0050] The second fixing portion 98 is inserted into the holder 44. The holder 44 is disposed between the first body support portion 82 and the second body support portion 84. The holder 44 has a through hole 106 that passes through the holder 44 in the front-rear direction. The shaft 76 passes through the through hole 106.

[0051] The biasing member 46 is housed in the holder 44. The biasing member 46 is, for example, a torsion spring. One end of the biasing member 46 is fixed to the holder 44. As shown in FIG. 8, the base member 34 has a through hole 108 penetrating the base member 34 in the left-right direction, and a fixing groove 109 recessed from the second surface 62. The fixing groove 109 is connected to the upper end of the through hole 108. The other end of the biasing member 46 is inserted into the through hole 108. The other end of the biasing member 46 is engaged with a bottom surface 109a of the fixing groove 109. As a result, the other end of the biasing member 46 is fixed to the base member 34.

[0052] 5, the retaining member 48 includes a retaining portion 112, a first insertion portion 114, and a second insertion portion 116. The retaining portion 112 has a substantially U-shape. The retaining portion 112 is disposed between the first insertion portion 114 and the second insertion portion 116.

[0053] The first insertion portion 114 has one or more (two in this embodiment) first protrusions 114a. The second insertion portion 116 has one or more (two in this embodiment) second protrusions 116a. The first protrusions 114a are inserted into the first insertion holes 68c of the first hook support portion 68, and the second protrusions 116a are inserted into the second insertion holes 70c of the second hook support portion 70. In this way, the retaining member 48 is attached to the hook support portion 56 of the base member 34. The retaining member 48 abuts against the shaft 76, thereby preventing the hook 40 from coming off the base member 34. In addition, the position of the base member 34 relative to the retaining member 48 is fixed.

[0054] As shown in FIG. 9 and FIG. 10, the hook 40 rotates between a first position (see FIG. 9) and a second position (see FIG. 10). When the hook 40 rotates between the first position and the second position, the position of the rotation axis AX relative to the base member 34 does not change. In addition, the hook main body 78 is always separated from the first surface 60 of the base member 34. As shown in FIG. 9, when the hook 40 is located at the first position, the operating portion 86 abuts against the stopper 38. When the hook 40 is not operated by the user, the abutting state between the operating portion 86 and the stopper 38 is maintained by the biasing member 46 biasing the hook 40 from the second position toward the first position. The second region 100b is disposed in front of the retaining portion 112. The retaining portion 112 is disposed on the second region 100b side of the supported member 6 in the longitudinal direction of the support portion 100. That is, the retaining portion 112 is disposed in the direction D1 in which the supported member 6 comes off from the hook 40, relative to the supported member 6. The distance between the retaining portion 112 and the return portion 102 is smaller than the thickness of the supported member 6 (the vertical width of the supported member 6 in FIG. 9). In addition, the distance between the retaining portion 112 and the second region 100b is smaller than the thickness of the supported member 6. The retaining portion 112 prevents the supported member 6 from coming off the hook 40.

[0055] When a force resisting the biasing force of the biasing member 46 is applied to the operating lever 42 by the user, the hook 40 rotates from the first position (see FIG. 9) toward the second position as shown in FIG. 10. The position of the rotation axis AX relative to the base member 34 does not change due to the rotation of the hook 40, and the hook body 78 is separated from the first surface 60 and the protruding portion 54 of the base member 34, so that the frictional force caused by the contact between the hook body 78 and the base member 34 is not applied to the hook body 78. The rotation of the hook 40 can prevent the user from having difficulty in operating the operating lever 42. As the hook 40 rotates, the supported member 6 moves in the direction D1 in the first region 100a and moves to the return portion 102 on the second region 100b. When the supported member 6 is moving, the supported member 6 abuts against the abutment surface 66 of the base member 34. When the hook 40 rotates further, the supported member 6 is pushed out in the direction D1 by the abutment surface 66. As a result, the supported member 6 rides up onto the barbed portion 102, and then climbs over the barbed portion 102. As a result, the supported member 6 is released from the hook 40.

[0056] (effect) The support unit 10 of this embodiment supports a work machine 2. The support unit 10 includes a harness 12 worn by a user, and a pad unit 14 that comes into contact with the user. The pad unit 14 includes a base member 34, and a hook 40 that is operated by the user, is removably attached to the work machine 2, and is attached to the base member 34 so as to be rotatable relative to the base member 34. The position of the rotation axis AX of the hook 40 relative to the base member 34 does not change even when the hook 40 rotates.

[0057] According to the above configuration, even if the hook 40 rotates, the position of the rotation axis AX of the hook 40 relative to the base member 34 does not change, so that the user is prevented from feeling uncomfortable when operating the hook 40.

[0058] The hook 40 also includes a hook body 78. The hook body 78 includes a support portion 100 that supports the work machine 2, and a barb portion 102 that protrudes from the support portion 100. The barb portion 102 is disposed at the tip of the support portion 100.

[0059] According to the above configuration, even if the hook 40 is erroneously operated, the work implement 2 stops at the return portion 102. This makes it possible to prevent the work implement 2 from unintentionally coming off the hook 40.

[0060] Further, the base member 34 includes a main body 50 and a protruding portion 54 protruding from the main body 50. The protruding portion 54 includes an abutment surface 66 that abuts against the working machine 2 when the hook 40 rotates while the working machine 2 is supported by the hook 40, and pushes the working machine 2 in a direction D1 in which the working machine 2 is disengaged from the hook 40.

[0061] In a configuration in which the base member 34 does not include the protrusion 54, even if the hook 40 rotates, the working machine 2 is unlikely to come off the hook 40. According to the above configuration, when the hook 40 rotates, the abutment surface 66 abuts against the working machine 2 and pushes the working machine 2 in the direction D1 in which the working machine 2 comes off the hook 40. This makes it possible to make the working machine 2 easily come off the hook 40.

[0062] The base member 34 also has a second surface 62 (an example of a facing surface) that faces the user, and a first surface 60 (an example of a non-facing surface) opposite the second surface 62. The hook 40 is spaced from the first surface 60.

[0063] According to the above configuration, even when the hook 40 rotates, the hook 40 does not come into contact with the first surface 60. Therefore, it is possible to suppress a frictional force from being applied to the hook 40 when the hook 40 rotates.

[0064] Moreover, the hook 40 rotates between a first position and a second position. The pad unit 14 is attached to the base member 34, and includes a retaining member 48 that is disposed in a direction D1 in which the working machine 2 comes off the hook 40 relative to the working machine 2 when the hook 40 is located at the first position with the working machine 2 supported by the hook 40, and a stopper 38 that protrudes from the base member 34 and comes into contact with the hook 40 when the hook 40 is located at the first position.

[0065] According to the above configuration, the degree of freedom in arranging the retaining member 48 and the stopper 38 can be increased compared to a configuration in which the retaining member 48 and the stopper 38 are configured as a single member.

[0066] Furthermore, the position of the retaining member 48 relative to the base member 34 is fixed.

[0067] In a configuration in which the position of the anti-slip member 48 changes relative to the base member 34, the work implement 2 may come off the hook 40 even when the hook 40 is located at the first position due to the change in the position of the anti-slip member 48 relative to the base member 34. According to the above configuration, it is possible to prevent the work implement 2 from coming off the hook 40 when the hook 40 is located at the first position.

[0068] The pad unit 14 also includes a biasing member 46 that is fixed to the base member 34 and biases the hook 40 from the second position toward the first position.

[0069] According to the above configuration, when no force resisting the biasing force of the biasing member 46 is applied to the hook 40, the hook 40 is located at the first position. This makes it possible to prevent the work implement 2 from coming off the hook 40 even if the user accidentally touches the hook 40.

[0070] (Modification) The work machine 2 according to one embodiment does not necessarily have to include the pole 4. Furthermore, the work machine 2 may be a work machine other than a brush cutter, for example, a chain saw or a trimmer.

[0071] The pad unit 14 according to the embodiment may be disposed at a location other than the vicinity of the user's waist, for example, near the user's stomach, chest, or back. In the pad unit 14 according to one embodiment, the hook 40 may not include the barb portion 102 .

[0072] In the pad unit 14 according to one embodiment, the retaining member 48 and the stopper 38 may be integrally formed.

[0073] In the pad unit 14 according to one embodiment, the base member 34 does not need to include the protrusion 54 . [Explanation of symbols]

[0074] 2: Work equipment 6: Supported member 10: Support unit 12: Harness 14: Pad unit 34: Base material 38: Stopper 40: Hook 42: Operating lever 46: Pressing member 48: Anti-slip material 50: Main body 52: Mounting part 54:Protrusion 56: Hook support part 60: 1st page 62: 2nd side 66: Contact surface 74:Support 76: Shaft 78: Hook body 86:Operation section 100: Support part 100a: 1st area 100b: 2nd area 102: Return part 112: Anti-slip part AX: Rotation axis BP:Boundary position D1 :Direction H1: Protruding height TP:Top position

Claims

1. A support unit for supporting a work machine, A harness worn by a user; a pad unit that contacts the user, The pad unit includes: A base member attached to the harness; a hook that is operated by the user, removably attached to the work machine, and rotatably attached to the base member, A support unit, wherein the position of the rotation axis of the hook relative to the base member does not change even when the hook rotates.

2. The hook comprises a hook body, The hook body is A support portion that supports the working machine; A return portion protruding from the support portion, The support unit according to claim 1 , wherein the return portion is disposed at a tip end of the support portion.

3. The base member is A main body portion, a protrusion protruding from the main body, The support unit according to claim 1 or 2, wherein the protrusion has an abutment surface that abuts against the work machine when the hook rotates while the work machine is supported by the hook, and pushes the work machine in a direction in which the work machine is disengaged from the hook.

4. The base member is A facing surface facing the user; a non-facing surface opposite the facing surface, A support unit according to claim 1 , wherein the hook is spaced from the non-facing surface.

5. The hook pivots between a first position and a second position; The pad unit includes: a retaining member attached to the base member and disposed in a direction such that the working machine is disengaged from the hook relative to the working machine when the hook is located at the first position in a state in which the working machine is supported by the hook; The support unit according to claim 1 , further comprising: a stopper protruding from the base member and abutting against the hook when the hook is located at the first position.

6. The support unit according to claim 5 , wherein a position of the stopper member relative to the base member is fixed.

7. The support unit according to claim 5 or 6, wherein the pad unit includes a biasing member fixed to the base member and biasing the hook from the second position toward the first position.

Images