Nut holder, nut member, and nut member processing method

Abstract

To provide a better nut holder, a nut member, and a processing method of the nut member.SOLUTION: The nut holder 14 includes the base portion 18, the first mounting portion 20, and the second mounting portion 22, the first mounting portion is provided at a position adjacent to the accommodation hole, the nut 12 is movable in the second direction opposite to the first direction, which is the direction of the bearing surface, from the predetermined position with respect to the base portion by the bearing surface 30a of the nut being pressed in a state of being accommodated in the accommodation hole, and the base portion is provided with the return portion 26 for returning the nut moved in the second direction to the predetermined position.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a nut holder, a nut member, and a method for processing a nut member. [Background technology]

[0002] Japanese Patent No. 5690530 discloses a nut member including a nut and a nut holder that supports the nut. The nut member can be attached to an object to be attached. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5690530 Summary of the Invention [Problem to be solved by the invention]

[0004] Japanese Patent No. 5690530 does not describe machining the nut member when attaching the nut member to an attachment object. A better nut holder, nut member, and method for machining the nut member are desired.

[0005] The present disclosure aims to solve the above-mentioned problems. [Means for solving the problem]

[0006] A first aspect of the present disclosure is a nut holder that can be attached to a mounting hole of an object to be mounted while supporting a nut, the nut holder comprising: a base portion having an accommodating hole formed therein for accommodating the nut; and a first mounting portion and a second mounting portion provided on the base portion, wherein the first mounting portion is fitted into the first hole when the mounting hole is a first hole, and the second mounting portion is fitted into the second hole when the mounting hole is a second hole of a different size from the first hole, the first mounting portion being provided at a position adjacent to the accommodating hole, the nut being accommodated in the accommodating hole and being movable from a predetermined position relative to the base portion in a second direction that is the opposite direction to the first direction in which the seating surface is oriented, by pressing the seating surface of the nut when accommodated in the accommodating hole, and the base portion being provided with a return portion for returning the nut that has moved in the second direction to the predetermined position.

[0007] A second aspect of the present disclosure is a nut member including the nut holder according to the first aspect and the nut.

[0008] A third aspect of the present disclosure is a method for processing a nut member according to the second aspect, comprising: a pressing step of pressing the seating surface of the nut in the second direction to press the nut down relative to the base portion in the second direction; a cutting step of cutting off at least a portion of the first mounting portion while the nut is pressed down; and a return step of returning the nut to the predetermined position by the return portion after the cutting step when the pressing force on the nut is removed. [Effects of the Invention]

[0009] According to the present disclosure, a better nut holder, a better nut member, and a better method for processing a nut member can be obtained. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is an explanatory diagram of a method for fixing a component to an object to be attached. [Figure 2]FIG. 2 is a perspective view of a nut member according to an embodiment of the present disclosure. [Figure 3] FIG. 3 is a perspective view of the nut member. [Figure 4] FIG. 4 is an exploded perspective view of the nut member. [Figure 5] FIG. 5 is a cross-sectional perspective view of the nut member. [Figure 6] FIG. 6 is a flowchart illustrating a procedure for processing the nut member and attaching it to the first hole of the attachment target. [Figure 7] Fig. 7A is a perspective view showing a cutting line of the nut member, and Fig. 7B is a perspective view of the first nut member. [Figure 8] Fig. 8A is a perspective view showing a state in which the first nut member is attached to the first hole, and Fig. 8B is a cross-sectional view taken along line VIIIB-VIIIB in Fig. 8A. [Figure 9] FIG. 9 is a flowchart illustrating a procedure for processing the nut member and attaching it to the second hole of the attachment target. [Figure 10] FIG. 10 is an explanatory diagram of the pressing step. [Figure 11] FIG. 11 is an explanatory diagram of the cutting step and the restoring step. [Figure 12] FIG. 12 is a perspective view of the second nut member. [Figure 13] FIG. 13 is a perspective view showing a state in which the second nut member is attached to the second hole. [Figure 14] Fig. 14A is a partially omitted cross-sectional view taken along line XIVA-XIVA in Fig. 13. Fig. 14B is a partially omitted cross-sectional view taken along line XIVB-XIVB in Fig. 13. DETAILED DESCRIPTION OF THE INVENTION

[0011] The mounting object has a mounting hole for mounting a nut member. The mounting hole includes a first hole and a second hole of different sizes. When the mounting hole is the first hole, it is necessary to prepare a first nut member having a first mounting portion corresponding to the first hole. On the other hand, when the mounting hole is the second hole, it is necessary to prepare a second nut member having a second mounting portion corresponding to the second hole.

[0012] If the first nut member and the second nut member are prepared as dedicated products, it is necessary to manage inventory of two types of nut members. However, if a nut member with a first attachment portion and a second attachment portion is prepared, inventory management can be performed with only one type of nut member.

[0013] However, in a nut member having a first mounting portion and a second mounting portion, when the first mounting portion is fitted into the first hole, the second mounting portion may interfere with the mounting object. Therefore, it is necessary to remove the portion of the second mounting portion that may interfere with the mounting object using a tool. Also, in this nut member, when the second mounting portion is fitted into the second hole, the first mounting portion may interfere with the mounting object. Therefore, it is necessary to remove the portion of the first mounting portion that may interfere with the mounting object using a tool.

[0014] Furthermore, in this nut member, if the first attachment portion is provided at a position adjacent to the receiving hole that receives the nut, a tool may hit the nut when removing a portion of the first attachment portion that may interfere with the attachment target, making the removal operation difficult.The present disclosure can provide a nut holder, a nut member, and a method for processing a nut member that make it easy to remove a portion of the first attachment portion that may interfere with the attachment target.

[0015] As shown in Fig. 1, the nut member 10 according to this embodiment is used, for example, when fixing a spacer 102 and a component 104 to an attachment object 100 with a plurality of bolts 106a, 106b. The attachment object 100 is, for example, but is not limited to, a door panel for a vehicle. The component 104 is, for example, but is not limited to, a speaker. The spacer 102 may be omitted.

[0016] The attachment target 100 is formed, for example, in a circular ring shape. Three attachment holes 108 are formed in the attachment target 100. The three attachment holes 108 are, for example, two first holes 108a and one second hole 108b. The first holes 108a and the second holes 108b are different in size. The first holes 108a and the second holes 108b are each rectangular. The two first holes 108a have the same size and shape. The shape, size, etc. of the attachment target 100 can be set as appropriate. The number, arrangement, shape, etc. of the first holes 108a and the second holes 108b can be set as appropriate.

[0017] A first nut member 10a is attached to each of the two first holes 108a. A second nut member 10b is attached to the second hole 108b. The first nut member 10a and the second nut member 10b are obtained by processing the nut member 10. The nut member 10 and a method for processing the nut member 10 will be described later.

[0018] The spacer 102 is formed, for example, in a circular ring shape. Two first insertion holes 110a and one second insertion hole 110b are formed in the spacer 102. The shape and size of the first insertion holes 110a correspond to the shape and size of the first hole 108a. The two first insertion holes 110a communicate with the two first holes 108a, respectively. The shape and size of the second insertion hole 110b correspond to the shape and size of the second hole 108b. The second insertion hole 110b communicates with the second hole 108b.

[0019] The component 104 has two first through holes 112a and one second through hole 112b. The two first through holes 112a communicate with the two first insertion holes 110a, respectively. The second through hole 112b communicates with the second insertion hole 110b. Two bolts 106a are threaded into the first nut member 10a while passing through the first through hole 112a, the first insertion hole 110a, and the first hole 108a. The bolt 106b is threaded into the second nut member 10b while passing through the second through hole 112b, the second insertion hole 110b, and the second hole 108b. This attaches the spacer 102 and the component 104 to the attachment target 100.

[0020] As shown in Figures 2 to 4, the nut member 10 includes a nut 12 and a nut holder 14 that can be attached to an attachment object 100 (see Figure 1) while holding the nut 12. The nut 12 is made of, for example, a metal material. The nut 12 is formed in a rectangular parallelepiped shape. A nut hole 16 is formed in the center of the nut 12. The material, size, shape, etc. of the nut 12 can be set as appropriate.

[0021] The nut holder 14 is integrally molded from, for example, a resin material. The nut holder 14 includes a base portion 18, a first attachment portion 20, a second attachment portion 22, a separation prevention portion 24, and a return portion 26 (see FIG. 3). The base portion 18 is formed, for example, in the shape of a square ring. A receiving hole 28 (see FIG. 4) that receives the nut 12 is formed in the base portion 18. The receiving hole 28 penetrates the base portion 18 in the height direction (thickness direction) of the base portion 18. The receiving hole 28 has a shape and size corresponding to the nut 12.

[0022] Hereinafter, the width direction of the base portion 18 may be referred to as the X direction, the length direction of the base portion 18 may be referred to as the Y direction, and the height direction (thickness direction) of the base portion 18 may be referred to as the Z direction. Furthermore, when the nut 12 is accommodated in the accommodation hole 28, the direction in which the seating surface 30a of the nut 12 faces may be referred to as the first direction (Z1 direction), and the direction opposite to the first direction may be referred to as the second direction (Z2 direction).

[0023] As shown in FIGS. 2 and 4 , the first mounting portion 20 is adjacent to the accommodating hole 28. The first mounting portion 20 has a pair of first fitting portions 32. The pair of first fitting portions 32 are adjacent to the accommodating hole 28 in the X direction. Each first fitting portion 32 has a pair of first positioning portions 34 and a first claw portion 36. The first positioning portions 34 protrude in the first direction from a first end surface 38 a of the base portion 18 facing the first direction. The pair of first positioning portions 34 are spaced apart from each other in the Y direction. The first claw portion 36 is located between the pair of first positioning portions 34.

[0024] The first claw portion 36 includes a first claw support portion 40 and a first claw main body 42. The first claw support portion 40 protrudes in a first direction from a first end surface 38a of the base portion 18. The first claw main body 42 protrudes from the first claw support portion 40 in a direction in which the pair of first fitting portions 32 move away from each other. The first claw main body 42 extends from a midpoint of the first claw support portion 40 in the Z direction to the end in the Z1 direction.

[0025] The first claw body 42 is provided with a first holding surface 44 and a first inclined surface 46. The first holding surface 44 is a surface facing the second direction (Z2 direction). The first inclined surface 46 is a surface facing the opposite side from the first claw support portion 40. The first inclined surface 46 extends in the first direction (Z1 direction) so as to be inclined in a direction approaching the first claw support portion 40.

[0026] The second mounting portion 22 has a pair of second fitting portions 48. The pair of second fitting portions 48 are provided on the base portion 18 so as to sandwich the first mounting portion 20 in the X direction. As shown in FIGS. 2 to 4, each second fitting portion 48 has a pair of extending portions 50, a pair of second positioning portions 52, and a second claw portion 54. The pair of extending portions 50 extend from the surface of the outer surface of the base portion 18 facing the X direction. The pair of extending portions 50 are spaced apart from each other in the Y direction.

[0027] Each of the pair of extension portions 50 is provided with a second positioning portion 52. The second positioning portion 52 protrudes in a first direction from an end portion of the extension portion 50 in the extension direction. The pair of second positioning portions 52 are spaced apart from each other in the Y direction. The second positioning portion 52 faces the first positioning portion 34 in the X direction. The second claw portion 54 faces the first claw portion 36.

[0028] The second claw portion 54 includes a second claw support portion 56 and a second claw main body 58. The second claw support portion 56 connects the pair of second positioning portions 52 to each other. The second claw main body 58 protrudes from the second claw support portion 56 in the opposite direction to the first claw portion 36. The second claw main body 58 extends from a midpoint of the second claw support portion 56 in the Z direction to the end in the Z1 direction.

[0029] The second claw body 58 is provided with a second holding surface 60 and a second inclined surface 62. The second holding surface 60 is a surface facing in the second direction (Z2 direction). The second inclined surface 62 is a surface facing the opposite side from the second claw support portion 56. The second inclined surface 62 extends in the first direction (Z1 direction) so as to be inclined in a direction approaching the second claw support portion 56.

[0030] As shown in FIG. 2, the removal prevention portion 24 prevents the nut 12 accommodated in the accommodation hole 28 from being removed from the accommodation hole 28 in the first direction. The removal prevention portion 24 has a pair of locking claws 64. Each locking claw 64 protrudes from each of the pair of first claw support portions 40 in the direction opposite to the first claw body 42. The pair of locking claws 64 face each other in the X direction. The locking claws 64 extend from a midpoint of the first claw support portion 40 to the end in the Z1 direction.

[0031] The locking claw 64 is provided with a locking surface 66 and a third inclined surface 68. The locking surface 66 is a surface facing the second direction (Z2 direction). The third inclined surface 68 is a surface facing the opposite side from the first claw support portion 40. The third inclined surface 68 extends in the first direction (Z1 direction) so as to be inclined in a direction approaching the first claw support portion 40.

[0032] The nut 12 is movable in the second direction from a predetermined position relative to the base portion 18 by pressing the seat surface 30a of the nut 12 while it is housed in the housing hole 28 (see FIG. 10). The return portion 26 returns the nut 12 that has moved in the second direction to the predetermined position (see FIGS. 5 and 10).

[0033] 3 and 5, the return portion 26 is provided on the base portion 18. The return portion 26 contacts an end surface 30b (the surface opposite to the seat surface 30a) of the nut 12 accommodated in the accommodation hole 28, the end surface 30b facing the second direction. The return portion 26 has a pair of elastically deformable contact pieces 70. The pair of contact pieces 70 protrude inward from a side surface 28a of the accommodation hole 28.

[0034] 5, the pair of contact pieces 70 extend along the axial direction of the nut 12 and protrude toward an imaginary line L1 that passes through the center of the receiving hole 28. The pair of contact pieces 70 are positioned so as to face each other across the imaginary line L1. The pair of contact pieces 70 are aligned in the Y direction.

[0035] Each contact piece 70 has an elastically deformable arm portion 72 and a contact protrusion 74. The arm portion 72 protrudes from the side surface 28a of the accommodating hole 28. The arm portion 72 is positioned offset in the first direction (Z1 direction) from the second end surface 38b of the base portion 18 facing the second direction. The contact protrusion 74 protrudes in the first direction from the end of the arm portion 72 in the protruding direction. The contact protrusion 74 contacts the end surface 30b of the nut 12. The arm portion 72 does not contact the nut 12.

[0036] In this embodiment, when the nut 12 is attached to the nut holder 14, the nut 12 can be pushed into the receiving hole 28 from the Z1 direction as shown in FIG. 4. In this case, the nut 12 hits the third inclined surfaces 68 of the pair of locking claws 64, causing the pair of locking claws 64 to elastically deform so as to move away from each other. This allows the nut 12 to be easily pushed into the receiving hole 28. Note that when the nut 12 moves over the pair of locking claws 64, the first claw support portion 40 returns to its original shape.

[0037] As shown in FIG. 5, the nut 12 can come into contact with the pair of contact pieces 70 when housed in the accommodating hole 28. The locking surfaces 66 of the locking claws 64 face the seating surfaces 30a of the nut 12. In other words, the locking surfaces 66 of the locking claws 64 come into contact with or are close to the seating surfaces 30a of the nut 12. Therefore, the nut 12 does not come out of the accommodating hole 28 in the Z1 direction. The seating surfaces 30a of the nut 12 are located further in the Z1 direction than the first end surface 38a of the base portion 18. In other words, when the nut 12 is housed in the accommodating hole 28, a portion of the nut 12 protrudes from the accommodating hole 28 in the Z1 direction.

[0038] The nut member 10 described above can be attached to either the first hole 108a or the second hole 108b of the attachment target 100. Therefore, there is no need to manage the inventory of the first nut member 10a and the second nut member 10b as dedicated products. In other words, it is sufficient to manage the inventory of only one type of nut member 10. However, if the nut member 10 is to be attached to the first hole 108a as is, the second attachment portion 22 will interfere with the attachment target 100 (see FIG. 8B). Therefore, it is necessary to prepare the first nut member 10a (see FIG. 7B) by machining the second attachment portion 22 of the nut member 10. Furthermore, if the nut member 10 is to be attached to the second hole 108b, the first attachment portion 20 will interfere with the attachment target 100 (see FIG. 14B). Therefore, it is necessary to prepare the second nut member 10b (see FIG. 12) by machining the first attachment portion 20 of the nut member 10.

[0039] Next, the procedure for processing the nut member 10 and attaching it to the first hole 108a of the attachment target 100 will be described. In this case, as shown in FIG. 6, in step S1, a part of the second attachment portion 22 of the nut member 10 is cut off with a tool. That is, as shown in FIG. 7A, for example, each second fitting portion 48 is cut at the position of cutting line C1 using a tool such as nippers. The cutting line C1 is located, for example, at the pair of extension portions 50 of each second fitting portion 48. In this way, the first nut member 10a can be obtained as shown in FIG. 7B. After step S1, the process proceeds to step S2.

[0040] In step S2, the first nut member 10a is attached to the first hole 108a. Specifically, as shown in FIGS. 8A and 8B, the first mounting portion 20 of the first nut member 10a is fitted into the first hole 108a. That is, the four first positioning portions 34 of the first nut member 10a are inserted into the first hole 108a. The four first positioning portions 34 are positioned at the four corners of the rectangular first hole 108a. This makes it easy to position the nut hole 16 of the first nut member 10a in the center of the first hole 108a.

[0041] Furthermore, when the pair of first claw portions 36 of the first nut member 10a is inserted into the first hole 108a, the edge of the attachment target 100 surrounding the first hole 108a abuts the first inclined surfaces 46 of the pair of first claw portions 36, causing the pair of first claw support portions 40 to elastically deform so that the pair of first claw bodies 42 approach each other. When the pair of first claw bodies 42 pass through the first hole 108a, the pair of first claw support portions 40 return to their original shapes. As a result, the seating surface 30a of the nut 12 contacts or approaches one surface 100a of the attachment target 100, and the pair of first holding surfaces 44 contact or approach the other surface 100b of the attachment target 100. Therefore, the first nut member 10a is fixed to the attachment target 100. In this embodiment, two first nut members 10a are attached to the two first holes 108a of the attachment target 100 (see FIG. 1 ).

[0042] Next, a procedure for processing the nut member 10 and attaching it to the second hole 108b of the attachment target 100 will be described. In this case, the processing method for the nut member 10 is performed as shown in Fig. 9. The processing method for the nut member 10 includes a pressing step, a cutting step, and a returning step.

[0043] Specifically, in step S10, a pressing step is performed. That is, as shown in Fig. 10, with the second end surface 38b of the base portion 18 in contact with the workbench 120, the seating surface 30a of the nut 12 is pressed in the second direction, thereby pressing the nut 12 down in the second direction relative to the base portion 18. When the seating surface 30a of the nut 12 is pressed in the second direction, the pair of contact pieces 70 pressed by the nut 12 elastically deform in the second direction, and the nut 12 moves in the second direction relative to the base portion 18. After this, the process proceeds to step S11.

[0044] In step S11, a cutting step is performed. That is, with the nut 12 pressed down, at least a portion of the first mounting portion 20 is cut off. Specifically, with the nut 12 pressed down, the four first positioning portions 34 are cut at the positions of the cutting lines C2 using a tool such as nippers. The cutting lines C2 are located at the base of each first positioning portion 34. In the cutting step, the four first positioning portions 34 can be cut off while the tool is aligned with (in contact with) the seat surface 30a of the nut 12, so the cutting work can be performed easily and accurately. Furthermore, the nut 12 does not get in the way of the cutting work. After this, the process proceeds to step S12.

[0045] In step S12, a return step is performed. That is, as shown in FIG. 11, the pressing force on the nut 12 is removed, and the nut 12 is returned to the predetermined position by the biasing force of the return portion 26. In this case, the cut surfaces 34a formed by cutting away the four first positioning portions 34 are located in the second direction (Z2 direction) further than the seat surface 30a of the nut 12 in the predetermined position. As a result, the second nut member 10b is formed, as shown in FIG. 12. After step S12, the process proceeds to step S13.

[0046] In step S13, the second nut member 10b is attached to the second hole 108b. Specifically, as shown in FIGS. 13 and 14A, the second mounting portion 22 of the second nut member 10b is fitted into the second hole 108b. That is, the four second positioning portions 52 of the second nut member 10b are inserted into the second hole 108b. The four second positioning portions 52 are positioned at the four corners of the rectangular second hole 108b, respectively. This makes it easy to position the nut hole 16 of the second nut member 10b in the center of the second hole 108b.

[0047] Furthermore, when the pair of second claw portions 54 of the second nut member 10b are inserted into the second hole 108b, the edge of the attachment target 100 surrounding the second hole 108b abuts against the second inclined surfaces 62 of the pair of second claw portions 54, causing the four second positioning portions 52 to elastically deform so that the pair of second claw bodies 58 approach each other. When the pair of second claw bodies 58 pass through the second hole 108b, the four second positioning portions 52 return to their original shapes. As a result, the seating surface 30a of the nut 12 contacts or approaches one surface 100a of the attachment target 100 (see FIG. 14B ), and the pair of second holding surfaces 60 contact or approach the other surface 100b of the attachment target 100. Therefore, the second nut member 10b is fixed to the attachment target 100.

[0048] According to this embodiment, the nut holder 14 has a first mounting portion 20 and a second mounting portion 22, allowing the nut holder 14 to be attached to either the first hole 108a or the second hole 108b of the attachment target 100. If the first mounting portion 20 interferes with the attachment target 100 when attaching the nut holder 14 to the second hole 108b, it is necessary to remove the portion of the first mounting portion 20 that may interfere with the attachment target 100. If the first mounting portion 20 is adjacent to the receiving hole 28, the nut 12 received in the receiving hole 28 may get in the way, making it difficult to easily remove the portion of the first mounting portion 20 that may interfere with the attachment target 100 with a tool. However, because the portion of the first mounting portion 20 that may interfere with the attachment target 100 can be removed by pressing the seating surface 30a of the nut 12 downward relative to the base portion 18 in the second direction, the removal of the portion of the first mounting portion 20 can be easily performed. This allows for a better nut holder 14 and nut member 10 to be obtained.

[0049] The nut member 10 according to this embodiment is not limited to the configuration described above. The return portion 26 may be a spring member (e.g., a leaf spring) provided on the side surface 28a of the accommodating hole 28. The accommodating hole 28 may be a hole having a bottom surface. In this case, the return portion 26 may be provided on the bottom surface of the accommodating hole 28, for example. The return portion 26 provided on the bottom surface of the accommodating hole 28 may be, for example, a rubber member such as a rubber plate, or a spring member such as a leaf spring, a disc spring, or a coil spring.

[0050] The following additional notes are further disclosed regarding the above embodiment.

[0051] (Appendix 1) The nut holder (14) of the present disclosure is a nut holder that can be attached to a mounting hole (108) of an object (100) while supporting a nut (12), and includes a base portion (18) in which an accommodating hole (28) for accommodating the nut is formed, and a first mounting portion (20) and a second mounting portion (22) provided on the base portion, wherein the first mounting portion is fitted into the first hole (108a) when the mounting hole is the first hole, and the second mounting portion is fitted into the second hole (108b) when the mounting hole is a second hole (108b) of a size different from the first hole, and the first mounting portion is provided at a position adjacent to the accommodating hole, and when the nut is accommodated in the accommodating hole, a seating surface (30a) of the nut is pressed, thereby allowing the nut to move from a predetermined position relative to the base portion in a second direction that is opposite to the first direction in which the seating surface is oriented, and the base portion is provided with a return portion (26) for returning the nut that has moved in the second direction to the predetermined position.

[0052] With this configuration, the nut holder has a first mounting portion and a second mounting portion, allowing the nut holder to be attached to either the first or second hole of the mounting target. If the first mounting portion interferes with the mounting target when attaching the nut holder to the second hole, it is necessary to remove the portion of the first mounting portion that may interfere with the mounting target. If the first mounting portion is adjacent to the receiving hole, the nut received in the receiving hole may get in the way, making it difficult to easily remove the portion of the first mounting portion that may interfere with the mounting target using a tool. However, because the portion of the first mounting portion that may interfere with the mounting target can be removed while the nut seating surface is pressed down in the second direction relative to the base, the removal work of removing a portion of the first mounting portion can be easily performed. This allows for a better nut holder to be obtained.

[0053] (Appendix 2) In the nut holder according to Supplementary Note 1, the return portion may come into contact with an end surface (30b) of the nut accommodated in the accommodation hole, the end surface facing the second direction.

[0054] According to this configuration, the end surface of the nut facing the second direction can be pushed in the first direction by the return portion, so that the nut can be easily returned to a predetermined position.

[0055] (Appendix 3) In the nut holder described in Appendix 2, the return portion may have an elastically deformable contact piece (70) that protrudes from a side surface (28a) of the accommodating hole toward the inside of the accommodating hole.

[0056] According to this configuration, the contact piece is elastically deformable, and therefore the nut can be returned to a predetermined position by the restoring force (elastic force) of the contact piece.

[0057] (Appendix 4) In the nut holder described in Appendix 3, the contact piece may have an elastically deformable arm portion (72) protruding from the side surface of the accommodating hole, and a contact protrusion (74) protruding from the end of the arm portion in the protruding direction toward the first direction.

[0058] With this configuration, when the contact protrusion is pressed in the second direction by the nut, the arm portion can be elastically deformed efficiently.

[0059] (Appendix 5) In the nut holder described in Appendix 3, the return portion has a pair of contact pieces extending along the axial direction of the nut and protruding toward an imaginary line (L1) passing through the center of the accommodating hole, and the pair of contact pieces may be positioned so as to face each other across the imaginary line.

[0060] With this configuration, when the nut is pressed down in the second direction relative to the base portion, the pair of contact pieces can be elastically deformed in a balanced manner.

[0061] (Appendix 6) The nut holder according to Supplementary Note 1 may further include a separation prevention portion (24) that prevents the nut accommodated in the accommodation hole from separating from the accommodation hole in the first direction.

[0062] With this configuration, the nut accommodated in the accommodation hole can be prevented from coming off the accommodation hole.

[0063] (Appendix 7) A nut member (10) of the present disclosure includes the nut holder described in any one of Supplementary Notes 1 to 6 and the nut.

[0064] According to this configuration, it is possible to obtain a nut member that exhibits the effects of the nut holder described in any one of Supplementary Notes 1 to 6. Therefore, it is possible to obtain a better nut member.

[0065] (Appendix 8) The method for processing a nut member disclosed herein is a method for processing a nut member described in Appendix 7, and includes a pressing step of pressing the seating surface of the nut in the second direction to press the nut down relative to the base portion in the second direction, a cutting step of cutting off at least a portion of the first mounting portion while the nut is pressed down, and a return step of returning the nut to the predetermined position by the return portion when the pressing force on the nut is removed after the cutting step.

[0066] According to this method, by performing a pressing step, a cutting step, and a returning step when attaching the first mounting portion to the first hole, the portion of the first mounting portion that interferes with the mounting object can be easily cut off using a tool.

[0067] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments. [Explanation of symbols]

[0068] 10... Nut member 12... Nut 14...Nut holder 18...Base part 20...First mounting portion 22...Second mounting portion 24... Break-away prevention section 26... Return section 28...receiving hole 28a...side surface of receiving hole 30a... Nut bearing surface 70... Contact piece 72...Arm portion 74...Contacting protrusion 100...Mounting object 108...Mounting hole 108a...1st hole 108b...2nd hole L1...Virtual line

Claims

1. A nut holder that can be attached to a mounting hole of a mounting target while supporting a nut, a base portion having an accommodation hole formed therein for accommodating the nut; a first mounting portion and a second mounting portion provided on the base portion; Equipped with the first mounting portion is fitted into the first hole when the mounting hole is a first hole; the second mounting portion is fitted into the second hole when the mounting hole is a second hole having a size different from that of the first hole, the first attachment portion is provided at a position adjacent to the receiving hole, the nut is movable from a predetermined position relative to the base portion in a second direction opposite to a first direction in which the seating surface is oriented, by pressing a seating surface of the nut while the nut is housed in the housing hole; The base portion is provided with a return portion for returning the nut, which has moved in the second direction, to the predetermined position.

2. The nut holder according to claim 1, The return portion contacts an end surface of the nut accommodated in the accommodation hole that faces the second direction.

3. The nut holder according to claim 2, The returning portion has an elastically deformable contact piece that protrudes from a side surface of the accommodating hole toward the inside of the accommodating hole.

4. The nut holder according to claim 3, The contact piece is an elastically deformable arm portion protruding from the side surface of the receiving hole; a contact protrusion protruding in the first direction from an end of the arm portion in a protruding direction; A nut holder having

5. The nut holder according to claim 3, the return portion has a pair of contact pieces extending along the axial direction of the nut and protruding toward an imaginary line passing through the center of the receiving hole, The pair of contact pieces are positioned to face each other across the imaginary line.

6. The nut holder according to claim 1, The nut holder further includes a removal prevention portion that prevents the nut accommodated in the accommodation hole from being removed from the accommodation hole in the first direction.

7. The nut holder according to any one of claims 1 to 6, The nut; A nut member comprising:

8. A method for processing the nut member according to claim 7, a pressing step of pressing the seating surface of the nut in the second direction to press the nut down relative to the base portion in the second direction; a cutting step of cutting off at least a portion of the first mounting portion while the nut is pressed down; a returning step of returning the nut to the predetermined position by the returning portion when the pressing force on the nut is removed after the cutting step; A method for processing a nut member, comprising:

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