Hook

Abstract

To provide a hook capable of accurately lowering objects to be transported to a predetermined location.SOLUTION: A hook 1 comprises a connecting portion 40 extending in a first direction X, a hook portion 10 located on one side of the connecting portion 40 in the first direction X and on one side of the connecting portion 40 in the second direction Y, and a gripping portion 20 located on the other side of the connecting portion 40 in the first direction X. A hook portion 10 includes a first hook portion 12 protruding in a hook-like manner toward the side opposite to the gripping portion 20 in the first direction X, and a second hook portion 13 located on the side of the gripping portion 20 relative to the first hook portion 12 in the first direction X and protruding in the hook-like manner toward the side of the gripping portion 20.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a hand hook, and more specifically, to a hand hook capable of assisting in the conveyance operation of an object to be conveyed by a suspension member.

Background Art

[0002] Conventionally, a hanging operation of suspending an object to be conveyed from a suspension member such as a wire or a rope, conveying it, and then lowering it is known. In such a hanging operation or the like, it is dangerous to use hands for adjusting the position of the object to be conveyed, so such adjustment is performed using a jig. Such a jig is sometimes called a hand hook or a hand hook bar. As such a hand hook, for example, the hand hook described in Patent Document 1 is known (for example, see Patent Document 1).

[0003] According to the hand hook described in Patent Document 1, it is said that the sway of the object to be conveyed can be suppressed by pressing the arc hook portion provided at the tip against the object to be conveyed or hooking it on the suspension member.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in a hanging operation in a factory or the like, for example, it may be required to accurately lower the object to be conveyed to a predetermined location on a predetermined production line. However, the hand hook described in Patent Document 1 only suppresses the sway of the object to be conveyed as described above. Therefore, a hand hook capable of accurately lowering the object to be conveyed to a predetermined location is required.

[0006] The present invention has been made in view of the above points, and one of the problems is to provide a hook that can accurately lower an object to be conveyed to a predetermined location.

Means for Solving the Problems

[0007] (1): The hook according to the present invention is a hook that assists in the conveyance operation of an object to be conveyed by a suspension lower member, and includes a connecting portion extending in a first direction, a hook portion on one side of the connecting portion in the first direction and on one side of the connecting portion in a second direction intersecting the first direction, and a gripping portion on the other side of the connecting portion in the first direction. The hook portion includes a first hook portion that protrudes hook-shaped toward the side opposite to the side of the gripping portion in the first direction, and a second hook portion that is on the side of the gripping portion rather than the first hook portion in the first direction and protrudes hook-shaped toward the side of the gripping portion.

[0008] (2): In (1), the maximum separation distance between the first hook portion and the second hook portion in the first direction may be smaller than the maximum width of the object to be conveyed suspended by the suspension lower member.

[0009] (3): In (1) or (2), each of the first hook portion and the second hook portion may be formed in a curved shape.

[0010] (4): In any one of (1) to (3), the portion excluding the second hook portion may be integrally formed.

[0011] (5): In any one of (1) to (4), the gripping portion may include a protruding portion that protrudes to one side in the second direction or the other side in the second direction with respect to the connecting portion.

[0012] (6): In (5), the protruding portion may include a first protruding portion that protrudes in the second direction on the side of the hook portion in the first direction, and a second protruding portion that protrudes in the second direction on the side opposite to the side of the first protruding portion in the first direction.

[0013] (7): In (6), the length by which the first protruding portion protrudes may be greater than the length by which the second protruding portion protrudes.

[0014] (8): In (6) or (7), the length of the second protruding portion in the first direction may be longer than the length of the first protruding portion in the first direction.

[0015] (9): In any one of (6) to (8), the protruding portion includes a connecting portion where the first protruding portion and the second protruding portion are connected, and the inclination angle of the second protruding portion from the connecting portion toward the side opposite to the hook portion in the first direction may be smaller than the inclination angle of the first protruding portion from the connecting portion toward the hook portion side in the first direction. [Advantages of the Invention]

[0016] According to the present invention, a hand hook capable of accurately lowering an object to be conveyed to a predetermined location is provided. [Brief Description of the Drawings]

[0017]

Figure 1

Figure 2

Figure 3

[0018] Hereinafter, embodiments for carrying out the hand hook according to the present invention are illustrated together with the accompanying drawings. The embodiments illustrated below are for facilitating the understanding of the present invention and are not for limiting the interpretation of the present invention. The present invention can be changed and improved from the following embodiments without departing from its gist. Also, in the above accompanying drawings, the dimensions of each member may be exaggerated or reduced for easy understanding, or the hatching may be omitted.

[0019] FIG. 1 is a plan view showing the hand hook according to the present embodiment. As shown in FIG. 1, the hand hook 1 according to the present embodiment extends in the first direction X and includes a hook portion 10, a grip portion 20, and a connecting portion 40. The connecting portion 40 of the hand hook 1 is a rod-shaped portion that extends linearly along the first direction X. The hook portion 10 is provided on one side of the connecting portion 40 in the first direction X, and the grip portion 20 is provided on the other side of the connecting portion 40 in the first direction X.

[0020] The hook portion 10 is connected to one end of the connecting portion 40 on one side in the first direction X. In the second direction Y intersecting (orthogonal in the present embodiment) the first direction X, the hook portion 10 faces one side (a) with respect to the connecting portion 40. Specifically, the hook portion 10 includes a base portion 11 that continuously extends linearly from the connecting portion 40, a first hook portion 12 facing one side (a) in the second direction Y, and a second hook portion 13 facing one side (a) in the second direction Y.

[0021] The first hook portion 12 is connected to one end of the base portion 11 on one side in the first direction X. However, the first hook portion 12 may be provided at an intermediate portion of the base portion 11. The first hook portion 12 protrudes hook-shaped toward the side opposite to the grip portion 20 side in the first direction X. Therefore, the top portion 12T of the first hook portion 12 is the tip on one side of the hand hook 1 in the first direction X. In the present embodiment, the first hook portion 12 is U-shaped in plan view and is formed in a curved shape. The end portion 12E of the first hook portion 12 is on one side (a) in the second direction Y with respect to the connecting portion 40 and the base portion 11 of the hook portion 10. Note that the first hook portion 12 does not necessarily have to be U-shaped in plan view as long as it protrudes hook-shaped toward the side opposite to the grip portion 20 side in the first direction X, and for example, it may be V-shaped.

[0022] The second hook portion 13 is connected to the end portion on the other side of the base portion 11 in the first direction X. That is, the second hook portion 13 is located on the side of the gripping portion 20 rather than the first hook portion 12 in the first direction X. Incidentally, the first connection portion 30 where the second hook portion 13 is connected to the base portion 11 may be considered as the boundary between the base portion 11 and the connecting portion 40. The second hook portion 13 protrudes in a hook shape toward the side of the gripping portion 20 in the first direction X. In the present embodiment, the second hook portion 14 is U-shaped in a plan view and is formed in a curved shape. The end portion 13E of the second hook portion 13 is on one side (a) in the second direction Y with respect to the connecting portion 40 and the base portion 11 of the hook portion 10. Incidentally, as long as the second hook portion 13 protrudes in a hook shape toward the side of the gripping portion 20 in the first direction X, it does not have to be U-shaped in a plan view and may be, for example, V-shaped.

[0023] In the present embodiment, the first hook portion 12 and the second hook portion 13 generally have a symmetrical shape. The end portion 12E of the first hook portion 12 and the end portion 13E of the second hook portion 13 are arranged in a straight line with a gap G therebetween in the first direction X. Further, the top portion 12T of the first hook portion 12 and the top portion 13T of the second hook portion 13 are arranged in a straight line with a space therebetween in the first direction X. In the first direction X, the distance between the top portion 12T of the first hook portion 12 and the top portion 13T of the second hook portion 13 is the maximum separation distance Dm between the first hook portion 12 and the second hook portion 13.

[0024] Incidentally, the first hook portion 12 and the second hook portion 13 do not have to have a symmetrical shape. Further, the end portion 12E of the first hook portion 12 and the end portion 13E of the second hook portion 13 do not have to be arranged in a straight line extending in the first direction X. Further, the top portion 12T of the first hook portion 12 and the top portion 13T of the second hook portion 13 do not have to be arranged in a straight line extending in the first direction X.

[0025] In this embodiment, the gripping portion 20 has a base portion 21 and a protruding portion 22. The base portion 21 extends linearly continuously from the connecting portion 40. The protruding portion 22 protrudes toward one side (a) in the second direction Y with respect to the connecting portion 40. In this embodiment, the protruding portion 22 includes a first protruding portion 23 that protrudes toward one side (a) in the second direction Y on the side of the hook portion 10 in the first direction X, and a second protruding portion 25 that protrudes toward one side (a) in the second direction Y on the side opposite to the side of the first protruding portion 23 in the first direction X.

[0026] The first protruding portion 23 has a V-shaped shape in plan view. The first protruding portion 23 includes a top portion 23T that is the most protruding portion toward one side (a) in the second direction Y, a first inclined portion 23a that obliquely extends from the top portion 23T toward the side of the hook portion 10 in the first direction X and the other side (b) in the second direction Y, and a second inclined portion 23b that obliquely extends from the top portion 23T toward the side of the second protruding portion 25 in the first direction X and the other side (b) in the second direction Y. The end of the first inclined portion 23a is connected to the base portion 21. The second connection portion 31 where the first inclined portion 23a is connected to the base portion 21 may be considered as the boundary between the base portion 21 and the connecting portion 40.

[0027] The second protruding portion 25 has a J-shaped shape in plan view. The second protruding portion 25 includes a top portion 25T that is the most protruding portion toward one side (a) in the second direction Y, an inclined portion 25b that obliquely extends from the top portion 25T toward the side of the hook portion 10 in the first direction X and the other side (b) in the second direction Y, and a U-shaped curved portion 25a that connects the top portion 25T and the end portion 21E of the base portion 21. The curved portion 25a protrudes toward the side opposite to the side of the hook portion 10 in the first direction X. Therefore, the top portion 25aT of the curved portion 25a is the tip on the other side in the first direction X of the hand hook 1.

[0028] Of the inclined portion 25b of the second protruding portion 25, the end on the side of the first protruding portion 23 is connected to the end on the side of the second protruding portion 25 of the second inclined portion 23b of the first protruding portion 23. That is, the gripping portion 20 includes a third connecting portion 24 (connecting portion) where the first protruding portion 23 and the second protruding portion 25 are connected. In the present embodiment, the inclination angle θ2 of the inclined portion 25b of the second protruding portion 25 is smaller than the inclination angle θ1 of the second inclined portion 25b of the first protruding portion 23. In other words, in the present embodiment, the inclination angle θ2 of the second protruding portion 25 in the direction from the third connecting portion 24 toward the side opposite to the hook portion 10 in the first direction X is smaller than the inclination angle θ1 of the first protruding portion 23 in the direction from the third connecting portion 24 toward the hook portion 10 in the first direction X. Note that the inclination angles θ1 and θ2 are inclination angles with respect to a straight line extending in the first direction X.

[0029] Also, in the present embodiment, in the second direction Y, the position of the top portion 23T of the first protruding portion 23 is on one side (a) with respect to the position of the top portion 25T of the second protruding portion 25. In other words, in the present embodiment, in the second direction Y, the length PL1 by which the first protruding portion 23 protrudes is larger than the length PL2 by which the second protruding portion 25 protrudes. Also, in the present embodiment, the length L2 of the second protruding portion 25 in the first direction X is longer than the length L1 of the first protruding portion 23 in the first direction X.

[0030] In the present embodiment, the hand hook 1 is formed from two, for example, metal bars. Specifically, the portion of the hook portion 10 excluding the second hook portion 13, that is, the first hook portion 12, the connecting portion 40, and the gripping portion 20 are integrally formed by one bent first bar 91. In the present embodiment, one end of the first bar 91 is the first hook portion 12E, and the other end of the first bar 91 is welded at the boundary portion between the base portion 21 and the connecting portion 40 (that is, the second connecting portion 31). Then, one end of the second hook portion 13 made of another bent second bar 92 is welded to the first connecting portion 30 of the first bar 91, thereby forming the hand hook 1. Note that the end portion 13E of the second hook portion 13 is the other end of the second bar 92. Thus, the hand hook 1 of the present embodiment is formed from two members, and the number of parts is reduced. Note that the hand hook 1 may be formed from three or more members.

[0031] As described above, the hand hook 1 of the present embodiment includes a connecting portion 40 extending in the first direction X, a hook portion located on one side of the connecting portion 40 in the first direction X and on one side (a) of the connecting portion 40 in the second direction Y intersecting the first direction X, and a gripping portion 20 located on the other side of the connecting portion 40 in the first direction X. In such a hand hook 1, the hook portion 10 includes a first hook portion 12 that protrudes hook-shaped toward the side opposite to the side of the gripping portion 20 in the first direction X, and a second hook portion 13 that is located on the side of the gripping portion 20 rather than the first hook portion 12 in the first direction X and protrudes hook-shaped toward the side of the gripping portion 20.

[0032] Next, an example of the usage method of the hand hook 1 will be described with reference to FIGS. 2 and 3. FIG. 3 is a diagram showing the state of the second step when using the hand hook 1.

[0033] As shown in FIGS. 2 and 3, the hand hook 1 can be used to assist the conveyance operation of the object M to be conveyed by the suspension members Sa and Sb. The object M to be conveyed is not particularly limited, and it may be a steel material, more specifically, a steel material linearly extending in a predetermined direction, and further, it may be a steel plate such as a roll facility, round steel (round bar), square steel (square bar), deck plate, etc. The suspension members Sa and Sb are not particularly limited as long as they are members capable of suspending the object M to be conveyed, and may be, for example, wires or ropes. In FIGS. 2 and 3, an example where the object M to be conveyed is a roll facility is shown.

[0034] As shown in FIGS. 2 and 3, for example, in a manufacturing line in a factory, a hook F for suspending the object M to be conveyed is arranged, and two suspension members Sa and Sb are hooked on this hook F.

[0035] After hooking one end of the lower suspension member Sa on the hook F, it is wound around one side portion of the object M to be conveyed, and then the other end is hooked on the hook F, thereby supporting one side portion of the object M to be conveyed. The lower suspension member Sa wound around the object M to be conveyed includes a first portion Sa1 and a second portion Sa2 whose distance from each other increases as it goes downward in the vertical direction Z from the hook F. The maximum separation distance between the first portion Sa1 and the second portion Sa2 is approximately equal to the diameter (maximum width Wm) of the object M to be conveyed suspended by the lower suspension member Sa. Also, in the present embodiment, the maximum separation distance Dm between the first hook portion 12 and the second hook portion 13 is smaller than the diameter (maximum width Wm) of the object M to be conveyed suspended by the lower suspension member Sa.

[0036] On the other hand, after hooking one end of the lower suspension member Sb on the hook F, it is wound around the other side portion of the object M to be conveyed, and then the other end is hooked on the hook F, thereby supporting the other side portion of the object M to be conveyed. The lower suspension member Sb wound around the object M to be conveyed includes a first portion Sb1 and a second portion Sb2 whose distance from each other increases as it goes downward in the vertical direction Z from the hook F. The maximum separation distance between the first portion Sb1 and the second portion Sb2 is approximately equal to the diameter (maximum width Wm) of the object M to be conveyed suspended by the lower suspension member Sb. Also, in the present embodiment, the maximum separation distance Dm between the first hook portion 12 and the second hook portion 13 is smaller than the diameter (maximum width Wm) of the object M to be conveyed suspended by the lower suspension member Sb.

[0037] In this way, the object M to be conveyed is supported by the lower suspension members Sa and Sb at one side portion and the other side portion in the extending direction of the object M to be conveyed, and is suspended by the hook F. By lowering the hook F in this state, the object M to be conveyed is lowered to a predetermined location on the manufacturing line below. Such a process is also referred to as the hanging operation. And the way of winding the above-described lower suspension members Sa and Sb around the object to be conveyed is also referred to as the overwrapping, but the use of the hand hook 1 is not limited to the hanging operation of overwrapping.

[0038] By using the hand hook 1 in the hanging operation, it becomes possible to accurately lower the object M to be conveyed to a predetermined location. This will be described below.

[0039] First, grip the gripping portion 20 of the hand hook 1. Here, it is advisable to grip the gripping portion 20 with the user's index finger facing the side of the first protruding portion 23 and the little finger facing the side of the second protruding portion 25. Then, the user may grip the hand hook 1 such that the first direction X of the hand hook 1 is perpendicular to the longitudinal direction of the object M to be conveyed suspended on the hook F. Therefore, at this stage, the second direction Y of the hand hook 1 is generally parallel to the longitudinal direction of the object M to be conveyed. Then, as shown in FIG. 2, move the hand hook 1 to one side (a) or the other side (b) in the second direction Y, and position a part of the first portion Sa1 and a part of the second portion Sa2 of the suspension member Sa inside the hook portion 10 through the gap G between the end 12E of the first hook portion 12 and the end 13E of the second hook portion 13. In FIG. 2, after the hook portion 10 of the hand hook 1 is directed to one side (a) in the second direction Y, an example is shown in which a part of the first portion Sa1 and a part of the second portion Sa2 of the suspension member Sa are positioned inside the hook portion 10 through the gap G by moving the hand hook 1 to one side (a) in the second direction Y.

[0040] Next, the hand hook 1 is moved downward in the vertical direction Z. Here, as described above, the maximum separation distance Dm between the first hook portion 12 and the second hook portion 13 is smaller than the diameter (maximum width Wm) of the object M to be conveyed suspended by the suspension member Sa. Therefore, when the hand hook 1 is moved downward in the vertical direction Z, eventually, as shown in FIG. 3, the separation distance between the first portion Sa1 and the second portion Sa2 of the suspension member Sa becomes equal to the maximum separation distance Dm. That is, the state in FIG. 3 is a state where a part of the suspension member Sa is snugly accommodated inside the hook portion 10. Therefore, by setting the state in FIG. 3, rattling of the suspension member Sa inside the hook portion 10 is suppressed, so that the hook portion 10 can be easily moved in the first direction X to the user's side or the side opposite to the user's side (the side of the object M to be conveyed), and the position of the object M to be conveyed in the first direction X can be easily adjusted. Specifically, when the hand hook 1 is pulled toward the user's side, the first portion Sa1 of the suspension member Sa is pushed toward the user's side by the first hook portion 12, and thereby, the object M to be conveyed can be easily pulled toward the user's side. On the other hand, when the hand hook 1 is pushed toward the side of the object M to be conveyed, the second portion Sa2 of the suspension member Sa is pushed toward the side opposite to the user's side by the second hook portion 13, and thereby, the object M to be conveyed can be easily pushed toward the side opposite to the user's side. Also, as described above, since the first hook portion 12 and the second hook portion 13 are each formed in a curved shape, after setting the state in FIG. 3, when the hook portion 10 is rotated about the gripping portion 20 on a plane perpendicular to the vertical direction Z, the suspension member Sa moves smoothly along the respective curves of the first hook portion 12 and the second hook portion 13. Therefore, it is possible to easily move the object M to be conveyed in a direction other than the first direction X, and it is possible to easily adjust the position of the object M to be conveyed in various directions perpendicular to the vertical direction Z.

[0041] In FIG. 3, an example is shown where the hook 1 is hooked on the hanging member Sa. However, the hook 1 may be hooked on the hanging member Sb. Alternatively, another hook 1 may be hooked on the hanging member Sb, and the hanging members Sa and Sb may be moved, for example, by two operators using the two hooks 1 and 1. By hooking the hook 1 on each of the hanging members Sa and Sb and adjusting the positions of both the hanging members Sa and Sb, it is possible to more accurately adjust the position of the object M to be conveyed.

[0042] As described above, according to the hook 1, since the position of the object M to be conveyed suspended from the hook F can be easily adjusted, it is possible to accurately lower the object M to be conveyed to a predetermined location. Further, by using the hook 1 on both of the hanging members Sa and Sb, it is possible to more accurately lower the object M to be conveyed to a predetermined location.

[0043] Further, in the hook 1, as described above, the gripping portion 20 includes the protruding portion 22 that protrudes in the second direction Y. The protruding portion 22 includes the first protruding portion 23 that protrudes in the second direction Y on the side of the hook portion 10 in the first direction X, and the second protruding portion 25 that protrudes in the second direction Y on the side opposite to the side of the first protruding portion 23 in the first direction. According to such a configuration, since there are protruding portions (the first protruding portion 23 and the second protruding portion 25) on both sides of the gripping portion 20 in the first direction X, when the hook 1 is pushed toward the object M to be conveyed, the first protruding portion 23 is used, and when the hook 1 is pulled toward the user's side, the second protruding portion 25 is used, and the hand gripping the gripping portion 20 is prevented from shifting in the first direction X. Therefore, according to the hook 1, it is possible to more easily move the hook 1 and more easily adjust the position of the object M to be conveyed.

[0044] Incidentally, generally, in order to push the hand hook 1 to the side opposite to the user (the side of the object M to be conveyed) with the hand hook 1 hooked on the hanging member, it is necessary to apply a greater force to the hand hook 1 than when pulling the hand hook 1 to the user's side. Therefore, when pushing the hand hook 1 to the side of the object M to be conveyed, the hand holding the gripping portion 20 tends to shift more easily in the first direction X than when pulling the hand hook 1 to the user's side. In the hand hook 1 of the present embodiment, the length PL1 by which the first protruding portion 23 on the side of the object M to be conveyed protrudes is greater than the length PL2 by which the second protruding portion 25 on the user's side protrudes. For this reason, according to the hand hook 1, when pushing the hand hook 1 to the side of the object M to be conveyed, the hand holding the gripping portion 20 is effectively suppressed from shifting in the first direction X. However, the length PL1 by which the first protruding portion 23 protrudes does not have to be greater than the length PL2 by which the second protruding portion 25 protrudes.

[0045] Further, in the gripping portion 20 of the hand hook 1 of the present embodiment, the length L2 of the second protruding portion 25 in the first direction X is longer than the length L1 of the first protruding portion 23 in the first direction X. Further, in the gripping portion 20 of the hand hook 1 of the present embodiment, the inclination angle θ2 of the second protruding portion 25 extending from the third connecting portion 24 (connecting portion) toward the side opposite to the hook portion 10 in the first direction X is smaller than the inclination angle θ1 of the first protruding portion 23 extending from the third connecting portion 24 (connecting portion) toward the hook portion 10 in the first direction X. Thus, in the gripping portion 20 of the hand hook 1 of the present embodiment, since the second protruding portion 25 is gently inclined, the gripping portion 20 can be easily gripped by gripping the second protruding portion 25. However, the length L2 of the second protruding portion 25 does not have to be longer than the length L1 of the first protruding portion 23, and the inclination angle θ2 does not have to be smaller than the inclination angle θ1.

[0046] As described above, the present invention has been described by taking the above embodiment as an example, but the present invention is not limited thereto.

[0047] For example, in the above-described embodiment, an example in which the gripping portion 20 has the base portion 21 and the protruding portion 22 has been described, but the configuration of the gripping portion 20 is not limited thereto. For example, the protruding portion 22 may be omitted, and a grip made of, for example, resin may be attached to the base portion 21 to serve as the gripping portion.

[0048] Further, in the above-described embodiment, an example in which the overhanging portion 22 protrudes toward one side (a) in the second direction Y with respect to the connecting portion 40 has been described. However, the overhanging portion 22 may protrude toward the other side (b) in the second direction Y. That is, in the second direction Y, with the connecting portion 40 as a reference, the hook portion 10 (the first hook portion 12 and the second hook portion 13) and the gripping portion 20 (the overhanging portion 22) may be located on different sides.

[0049] Also, in the above-described embodiment, an example in which the maximum separation distance Dm between the first hook portion 12 and the second hook portion 13 in the first direction X is smaller than the maximum width Wm (diameter) of the object M to be conveyed suspended from the suspension members Sa and Sb has been described. However, the maximum separation distance Dm may be equal to or greater than the maximum width Wm. Even when the maximum separation distance Dm is equal to or greater than the maximum width Wm, the hook portion 10 of the hand hook 1 includes the first hook portion 12 that protrudes hook-shaped toward the side opposite to the gripping portion 20 side, and the second hook portion 13 that is closer to the gripping portion 20 side than the first hook portion 12 and protrudes hook-shaped toward the gripping portion 20 side. Therefore, without removing the hand hook 1 from the suspension members Sa and Sb once, the hand hook 1 can be pushed toward the object M to be conveyed or pulled toward the user side. For this reason, even when the maximum separation distance Dm is equal to or greater than the maximum width Wm, the position of the object M to be conveyed suspended from the hook F can be easily adjusted, and the object M to be conveyed can be accurately lowered to a predetermined location.

[0050] Further, the use of the hand hook 1 is not limited to the operation of hanging balls, and it can be used for various applications related to the operation of conveying an object to be conveyed by a suspension member.

[0051] In addition, those skilled in the art can appropriately modify the hand hook of the present invention according to conventionally known knowledge. As long as the configuration of the present invention is still provided by such modifications, of course, it is included in the scope of the present invention.

Explanation of reference numerals

[0052] 1…Hand hook, 10…Hook part, 12…First hook part, 13…Second hook part, 20…Grip part, 23…First protrusion, 24…Third connecting part (connecting part), 25…Second protrusion, 40…Linking part, Dm…Maximum separation distance, M…Object to be conveyed, Sa, Sb…Suspension lower members, Wm…Maximum width, θ1, θ2…Inclination angles

Claims

1. A hook for assisting in the conveyance of an object to be conveyed by a lower suspension member, comprising: a connecting portion extending in a first direction; a hook portion on one side of the connecting portion in the first direction and on one side of the connecting portion in a second direction intersecting the first direction; a gripping portion on the other side of the connecting portion in the first direction; The hook portion includes: a first hook portion projecting in a hook shape toward the side opposite to the side of the gripping portion in the first direction; a second hook portion on the side of the gripping portion rather than the first hook portion in the first direction and projecting in a hook shape toward the side of the gripping portion; A hook.

2. The hook according to claim 1, wherein, in the first direction, a maximum separation distance between the first hook portion and the second hook portion is smaller than a maximum width of the object to be conveyed suspended by the lower suspension member.

3. The hook according to claim 1, wherein each of the first hook portion and the second hook portion is formed in a curved shape.

4. The hook according to claim 1, wherein a portion excluding the second hook portion is integrally formed.

5. The hook according to claim 1, wherein the gripping portion includes a projecting portion projecting to one side or the other side in the second direction with respect to the connecting portion.

6. The projecting portion includes: a first projecting portion projecting in the second direction on the side of the hook portion in the first direction; a second projecting portion projecting in the second direction on the side opposite to the side of the first projecting portion in the first direction. The hook according to claim 5.

7. The hook according to claim 6, wherein a length by which the first projecting portion projects is greater than a length by which the second projecting portion projects.

8. The hook according to claim 6, wherein a length of the second projecting portion in the first direction is longer than a length of the first projecting portion in the first direction.

9. The projecting portion includes a connecting portion connecting the first projecting portion and the second projecting portion, and an inclination angle of the second projecting portion from the connecting portion toward the side opposite to the side of the hook portion in the first direction is smaller than an inclination angle of the first projecting portion from the connecting portion toward the side of the hook portion in the first direction. The hook according to claim 6. ​

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