Mounting structure and fittings for crimp nuts

Abstract

To improve the attachment rigidity of a caulking nut which is attached to a resin member.SOLUTION: A lower frame main body 20 has two opposing face parts 24, 25 which oppose each other with a clearance 28 between them. A caulking nut 10 has a cylinder part 11 which is arranged in the clearance 28 between the two opposing face parts 24, 25, and the cylinder part 11 has a caulking part 14 which is caulked and fixed to the two opposing face parts 24, 25. The caulking part 14 is formed thicker than a clearance dimension G between the two opposing face parts 24, 25 at a part of the cylinder part 11. A portion other than the caulking part 14 of the cylinder part 11 is thinner than the clearance dimension G between the two opposing face parts 24, 25.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a crimp nut mounting structure in which a crimp nut is attached to a resin member by crimping, and to a fixture equipped with the crimp nut mounting structure. [Background technology]

[0002] A resin window, which is a fixture, includes a resin frame body in which multiple resin frames are framed. The resin frame is a resin member made of synthetic resin and is formed into a hollow shape. When a cover is attached to the resin frame, for example, a back plate or a turn nut is placed in the hollow part of the resin frame, and the cover is attached to the resin frame by a screw that screws into the back plate or the turn nut. However, depending on the design of the resin frame, it may be difficult to secure a space in which the back plate or the turn nut can be placed due to slimming down of the place where the back plate or the turn nut is placed. In response to this, a pop nut that is attached to a hole formed in a resin molded product and screwed into is conventionally known (see Patent Document 1).

[0003] The conventional Pop Nut described in Patent Document 1 is a crimp nut that is attached to a hole by clamping the outer periphery of the hole. By using the Pop Nut, the cover can be attached to the resin molded product with a screw without using a back plate or a turn nut. However, with the conventional Pop Nut, the Pop Nut is attached to the resin molded product only by clamping the outer periphery of the hole, making it difficult to improve the attachment strength of the Pop Nut to the resin molded product. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2008-196515 A Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT INVETION The present invention has been made in consideration of the above-mentioned problems in the conventional art, and has an object to improve the mounting strength of a crimp nut that is attached to a resin member. [Means for solving the problem]

[0006] The present invention provides a mounting structure for a crimp nut in which a crimp nut is attached to a resin member by crimping, The resin member has two opposing surfaces that face each other with a gap therebetween, The crimp nut has a cylindrical portion disposed in a gap between the two opposing surface portions, The cylindrical portion has a crimping portion that is crimped and fixed to the two opposing surface portions, The crimping portion is formed in a part of the cylindrical portion so as to be thicker than a gap dimension between the two opposing surface portions, The portion of the cylindrical portion other than the crimped portion is narrower than the gap dimension. and the distance between one of the two opposing surface portions is narrower than the distance between the other opposing surface portion. This is a mounting structure for a crimp nut. The present invention also relates to a fixture equipped with the mounting structure for the crimp nut of the present invention. Effect of the Invention

[0007] According to the present invention, the mounting strength of a crimp nut attached to a resin member can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a front view showing the fixture of the present embodiment as viewed from the outside of the room. [Diagram 2] FIG. 2 is a vertical cross-sectional view showing the fitting of the present embodiment. [Diagram 3] A diagram showing the lower frame body and crimp nut of the lower frame of this embodiment. [Figure 4] 1A is a view showing a crimp nut in which a tubular portion is inserted into a gap between two opposing surface portions of the present embodiment. FIG. [Diagram 5] 13 is a diagram showing a crimp nut attached to two opposing surface portions of the present embodiment. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of a crimp nut mounting structure and fitting of the present invention will be described with reference to the drawings. In the mounting structure of the crimp nut of this embodiment, the crimp nut is fixed to a resin member for a fixture by crimping, and the crimp nut is attached to the resin member by crimping. Therefore, the fixture of this embodiment includes a resin member to which the crimp nut is attached, and a mounting structure for the crimp nut provided on the resin member. The crimp nut is fixed to the resin member, which is a member made of synthetic resin, by crimping it. Below, the mounting structure of the crimp nut and the fixture will be described using a case where the fixture is a fixed window as an example.

[0010] Fig. 1 is a front view showing the fitting 1 of this embodiment as seen from the outside of the room, and shows a schematic configuration of the fitting 1. Fig. 2 is a vertical cross-sectional view showing the fitting 1 of this embodiment. As shown in the figure, the fitting 1 comprises a panel body 2 and a frame body 3, and is installed on a wall of a building. The frame body 3 is a square opening frame (window frame) that forms an opening 3A, and surrounds the panel body 2. The fitting 1 and the frame body 3 are installed in the opening of the building, and are disposed between the interior (indoors) and exterior (outdoors) of the building. The panel body 2 is a square glass panel body (e.g., double-glazed glass, laminated glass, or plate glass), and is disposed in the opening 3A of the frame body 3.

[0011] When the fitting 1 and the crimp nut mounting structure installed in the building are viewed from the front (see FIG. 1), the up-down direction is the up-down direction, and the left-right direction is the left-right direction. In FIG. 1, the up-down direction is the vertical direction, and the left-right direction is the horizontal direction. The indoor / outdoor direction S (see FIG. 2) is the indoor / outdoor direction (indoor / outdoor direction) in the fitting 1 and the crimp nut mounting structure installed in the building. Also, the indoor / outdoor direction S is the front-to-back direction (depth direction of the fitting 1) when the fitting 1 and the crimp nut mounting structure installed in the building are viewed from the front, and in FIG. 1 and FIG. 2, it is the horizontal direction intersecting with the left-right direction. In this way, the directions related to the fitting 1 and the crimp nut mounting structure are specified by the directions in the state where they are installed in the building. Also, the indoor side and the outdoor side in the fitting 1 and the crimp nut mounting structure are the indoor side and the outdoor side in the state where they are installed in the building.

[0012] The frame body 3 has four frames 4 to 6 (an upper frame 4, a lower frame 5, and a pair of vertical frames 6) that are combined with each other, and the four frames 4 to 6 form an opening 3A. The upper frame 4 and the lower frame 5 are upper and lower horizontal frames of the frame body 3, and extend in the left-right direction (horizontal direction) at the upper and lower parts of the frame body 3. The pair of vertical frames 6 are side frames located on the left and right sides of the frame body 3, and extend in the up-down direction (vertical direction) at the sides of the frame body 3. The upper frame 4, the lower frame 5, and the left and right vertical frames 6 are connected at their ends to form a frame of the frames 4 to 6. Here, the panel body 2 is a double-glazed glass that is fitted into the frame body 3 and fixed to the frame body 3.

[0013] The fitting 1 is a resin fitting (here, a resin window). The frame body 3 is a resin frame body made of synthetic resin, and the four frames 4-6 of the frame body 3 are resin frames made of synthetic resin that constitute the frame body 3. The frames 4-6 are made of a resin shaped material formed by extrusion molding, for example. The resin shaped material is a shaped material (extruded shaped material) made of synthetic resin, and is continuously formed into a constant cross-sectional shape by extruding synthetic resin.

[0014] The fitting 1 is provided with a mounting structure 7 for a crimp nut 10 provided on a frame 3. The mounting structure 7 for the crimp nut 10 is provided on at least one of the four frames 4-6 of the frame 3, and here, is provided on the bottom frame 5. The bottom frame 5 has a bottom frame body 20, a cover 30, a crimp nut 10, and a screw 40 that constitute the mounting structure 7 for the crimp nut 10, and also has a pressing edge 50 attached to the bottom frame body 20. The mounting structure 7 for the crimp nut 10 is provided at two locations spaced apart in the longitudinal direction (left-right direction) of the bottom frame 5.

[0015] The lower frame body 20 of the lower frame 5 is a resin member, and is made of a resin shaped material formed into a hollow shape. The lower frame body 20 has a projection portion 21 arranged along the indoor / outdoor direction S, a retaining portion 22 located on the outdoor side of the projection portion 21, and a drip edge portion 23 protruding to the outdoor side. The projection portion 21 is an indoor side portion arranged on the indoor side of the panel body 2, and is located on the inner periphery of the frame body 3 (the lower edge of the opening 3A) and extends from the panel body 2 toward the indoor side. The retaining portion 22 is located on the indoor side of the panel body 2, and the ridge 50 is located on the outdoor side of the panel body 2. The panel body 2 is arranged between the retaining portion 22 and the ridge 50 of the lower frame body 20, and is retained between the retaining portion 22 and the ridge 50.

[0016] The ridge 50 is located on the indoor side of the drain 23 and protrudes upward from the lower frame body 20. The drain 23 is an exterior portion that is located on the outdoor side of the panel body 2 and the ridge 50, and is located below the projection portion 21 and the panel body 2. The crimp nut 10 is crimped and fixed to the drain 23 of the lower frame body 20, which is a resin member, and is attached to the drain 23 by crimping. The screw 40 is screwed into the crimp nut 10 and attached to the crimp nut 10. The cover 30 is an example of an attachment member attached to the lower frame body 20, and is attached to the drain 23 of the lower frame body 20 by the screw 40. The cover 30 is located on the outdoor side and above the drain 23, and covers the drain 23 from the outdoor side and above.

[0017] Fig. 3 is a diagram showing the lower frame body 20 and the crimp nut 10 of the lower frame 5 of this embodiment. Fig. 3 shows a side view of the crimp nut 10 before attachment to the lower frame body 20, and a cross-sectional view of a portion of the lower frame body 20 where the crimp nut 10 is attached. In Fig. 3, the internal structure of the crimp nut 10 is shown by a chain line. As shown in the figure, the drain section 23 of the lower frame body 20 is a mounting section to which the crimp nut 10 is attached, and is formed in a hollow shape. The drain section 23 of the lower frame body 20 has two opposing surfaces 24, 25 (first opposing surface 24, second opposing surface 25) to which the crimp nut 10 is attached, a wall section 26 located on the outdoor side of the opposing surfaces 24, 25, and a mounting hole 27 formed in the wall section 26.

[0018] The opposing surfaces 24, 25 are spaced apart from each other in the vertical direction, protruding toward the outdoor side, and disposed along the indoor-outdoor direction S. The first opposing surface 24 is a plate-shaped upper opposing surface located above the second opposing surface 25, and the second opposing surface 25 is a plate-shaped lower opposing surface located below the first opposing surface 24. The pair of upper and lower opposing surfaces 24, 25 are disposed facing each other in the vertical direction with a gap 28 between them. The gap 28 between the two opposing surfaces 24, 25 is the internal space of the draining section 23, which is a hollow section, and the gap dimension G between the two opposing surfaces 24, 25 is the dimension of the gap 28. The gap dimension G is the distance between the two opposing surfaces 24, 25 in the gap 28 (the shortest distance between the two opposing surfaces 24, 25), and here, is the distance between the two opposing surfaces 24, 25 in the vertical direction.

[0019] The wall portion 26 is located between the opposing surface portions 24, 25 and is connected to each of the opposing surface portions 24, 25. The wall portion 26 is formed at the outermost location of the lower frame body 20, and is provided between the outer ends of the opposing surface portions 24, 25, and is located on the outer side of the gap 28. The gap 28 is closed on the outdoor side by the wall portion 26. The mounting hole 27 is a circular through-hole to which the crimp nut 10 is attached, and penetrates the wall portion 26 in the indoor / outdoor direction S. The mounting hole 27 opens toward the gap 28 on the indoor side and toward the outside of the gap 28 on the outdoor side, and is open toward the gap 28 and the outside of the gap 28.

[0020] The center line E of the mounting hole 27 is a straight line passing through the center of the mounting hole 27 in the radial direction, and the central plane T between the two opposing surface portions 24, 25 is a plane (central plane of the gap 28) located in the center between the two opposing surface portions 24, 25. The center line E of the mounting hole 27 is located on one of the opposing surface portions 24, 25 (here, the first opposing surface portion 24 side) with respect to the central plane T between the two opposing surface portions 24, 25 in the up-down direction. Therefore, the distance between the mounting hole 27 and the first opposing surface portion 24, which is one of the opposing surface portions, is shorter than the distance between the mounting hole 27 and the second opposing surface portion 25, which is the other opposing surface portion, and the mounting hole 27 opens toward the gap 28 at a position closer to the first opposing surface portion 24 than the second opposing surface portion 25. In addition, in the vertical direction, the portion of mounting hole 27 on the first opposing surface portion 24 side (upper surface 27A) is formed in alignment with the surface (lower surface 24A) on the gap 28 side of first opposing surface portion 24, and the portion of mounting hole 27 on the second opposing surface portion 25 side (lower surface 27B) is formed at a position spaced upward from the surface (upper surface 25A) on the gap 28 side of second opposing surface portion 25.

[0021] The crimp nut 10 is a metallic nut part (e.g., a pop nut) and is formed in a cylindrical shape. The crimp nut 10 has a cylindrical tube part 11 that is crimped and fixed to two opposing surface parts 24, 25 of the lower frame main body 20, a threaded part 12 provided on the inner periphery of the tube part 11, and a flange 13 provided on the outer periphery of the tube part 11. The center line F of the crimp nut 10 is a straight line passing through the radial centers of the crimp nut 10 and the tube part 11, and the tube part 11 extends along the center line F of the crimp nut 10. The threaded part 12 is a female thread and is screwed into the screw 40. The flange 13 is formed in an annular shape at one end of the tube part 11 in the direction of the center line F of the crimp nut 10 (center line direction), and protrudes from the outer periphery of the tube part 11 toward the outside in the radial direction of the crimp nut 10.

[0022] The two opposing surfaces 24, 25 of the lower frame body 20 are formed parallel to each other with a gap 28 between them into which the tubular portion 11 of the crimp nut 10 can be inserted. Therefore, the gap 28 between the two opposing surfaces 24, 25 is wider than the diameter R1 (outer diameter) of the tubular portion 11 before crimping, and the gap dimension G between the two opposing surfaces 24, 25 is a dimension into which the tubular portion 11 can be inserted. The mounting hole 27 is formed with a diameter larger than the diameter R1 of the tubular portion 11 and smaller than the gap dimension G between the two opposing surfaces 24, 25. The tubular portion 11 of the crimp nut 10 is inserted into the mounting hole 27 from the outside of the lower frame body 20, and is inserted into the gap 28 between the two opposing surfaces 24, 25 through the mounting hole 27.

[0023] FIG. 4 is a diagram showing the crimp nut 10 in this embodiment in which the tubular portion 11 is inserted into the gap 28 between the two opposing surface portions 24, 25. As shown in FIG. As shown in the figure, the tubular portion 11 of the crimp nut 10 is inserted from a mounting hole 27 in the lower frame body 20 into the gap 28 between the two opposing surface portions 24, 25, and fits into the mounting hole 27. In addition, the flange 13 of the crimp nut 10 abuts against and hooks onto a wall portion 26 (the peripheral portion of the mounting hole 27) of the lower frame body 20. The crimp nut 10 is positioned relative to the opposing surface portions 24, 25 by the flange 13 and the mounting hole 27. In this state, the tubular portion 11 protrudes from the mounting hole 27 toward the inside of the gap 28 toward the indoor side, and is positioned in the mounting hole 27 and gap 28.

[0024] The gap dimension G between the two opposing surface portions 24, 25 is the minimum dimension of the gap 28 at the location where the tubular portion 11 of the crimp nut 10 is located. Before being crimped and fixed, the diameter R1 of the tubular portion 11 is smaller than the gap dimension G, and the tubular portion 11 is formed thinner than the gap dimension G. The center line F of the crimp nut 10 is disposed on the opposing surface side of one of the two opposing surface portions 24, 25 (here, the first opposing surface portion 24 side) with respect to the central plane T between the two opposing surface portions 24, 25 in the vertical direction. Therefore, the tubular portion 11 is disposed so that the distance between the first opposing surface portion 24 and the tubular portion 11 is narrower than the distance between the second opposing surface portion 25 in the gap 28, and is disposed at a position closer to the first opposing surface portion 24 than the second opposing surface portion 25. The distance between the tube portion 11 and the opposing surface portions 24, 25 is the shortest distance between the tube portion 11 and the opposing surface portions 24, 25, and becomes zero when the tube portion 11 and the opposing surface portions 24, 25 come into contact with each other. Here, the tube portion 11 is disposed in contact with the first opposing surface portion 24, and is disposed spaced apart from the second opposing surface portion 25 in the vertical direction. Note that the tube portion 11 may be disposed with a narrower distance between it and the first opposing surface portion 24 than the distance between it and the second opposing surface portion 25.

[0025] When crimping and fixing the tubular portion 11 of the crimp nut 10, a crimping tool (not shown) is inserted from the outside of the lower frame body 20 into the inside of the tubular portion 11. The crimping tool is also used to crimp the tubular portion 11 in the gap 28, and the tubular portion 11 is fixed to the two opposing surfaces 24, 25 of the lower frame body 20 by crimping. This attaches the crimp nut 10 to the opposing surfaces 24, 25. At that time, parts of the tubular portion 11 are crimped and fixed to the opposing surfaces 24, 25.

[0026] Fig. 5 is a diagram showing the crimp nut 10 attached to the two opposing surface portions 24, 25 of this embodiment, and also shows the screw 40 of the lower frame 5 and the cover 30. Fig. 5 shows a side view of the screw 40 before it is screwed into the threaded portion 12 of the crimp nut 10, and a cross-sectional view of the portion of the cover 30 that is attached to the lower frame body 20 by the screw 40. As shown in the figure, after being crimped and fixed, the tubular portion 11 of the crimp nut 10 has a crimped portion 14 that is crimped and fixed to the two opposing surface portions 24, 25 within the gap 28, and a non-crimped portion 15 that is the portion of the tubular portion 11 other than the crimped portion 14. The tubular portion 11 is deformed by crimping, and the crimped portion 14 is formed on the tubular portion 11.

[0027] The crimping portion 14 is a portion crimped toward the opposing surface portions 24, 25 of the tubular portion 11 (a portion deformed by crimping), and is formed in a part of the tubular portion 11 in the center line direction of the crimp nut 10 by crimping. The crimping portion 14 is also a convex portion (annular convex portion) formed in an annular shape on the outer periphery of the tubular portion 11, protruding toward the radially outward direction of the crimp nut 10 and extending in an annular shape in the circumferential direction of the tubular portion 11. The crimping portion 14 is crimped against the two opposing surface portions 24, 25 of the lower frame body 20 and is pressure-bonded to the opposing surface portions 24, 25. The crimping portion 14 is fixed between the two opposing surface portions 24, 25 by crimping, and the tubular portion 11 is fixed and attached to the opposing surface portions 24, 25 and the lower frame body 20.

[0028] The diameter R2 of the non-crimped portion 15 is the diameter (outer diameter) of the portion of the tubular portion 11 other than the crimped portion 14. The diameter R3 of the crimped portion 14 is the diameter (outer diameter) of the thickest portion of the crimped portion 14, and is the maximum diameter of the crimped portion 14. The diameter R2 of the non-crimped portion 15 is equal to the diameter R1 of the tubular portion 11 before being crimped and fixed (see FIGS. 3 and 4), and is smaller than the diameter R3 of the crimped portion 14 and the gap dimension G between the two opposing surface portions 24, 25. The diameter R3 of the crimped portion 14 is larger than the diameter R2 of the non-crimped portion 15 and the gap dimension G between the two opposing surface portions 24, 25.

[0029] In this way, the non-crimped portion 15 is formed narrower than the gap dimension G between the crimped portion 14 and the two opposing surface portions 24, 25. The center line of the crimped portion 14 and the non-crimped portion 15 is the center line F of the crimped nut 10, and is located on one of the opposing surface portions 24, 25 (here, the first opposing surface portion 24 side) with respect to the central plane T between the two opposing surface portions 24, 25 in the vertical direction. Therefore, the non-crimped portion 15 is disposed so that the distance between the first opposing surface portion 24, which is one of the opposing surface portions, is narrower than the distance between the second opposing surface portion 25, which is the other opposing surface portion, in the gap 28, and is disposed at a position closer to the first opposing surface portion 24 than the second opposing surface portion 25.

[0030] The distance between the non-crimped portion 15 and the opposing surface portions 24, 25 is the shortest distance between the non-crimped portion 15 and the opposing surface portions 24, 25, and becomes zero when the non-crimped portion 15 and the opposing surface portions 24, 25 are in contact with each other. Here, the non-crimped portion 15 is disposed in contact with the first opposing surface portion 24, and is disposed spaced apart from the second opposing surface portion 25 in the vertical direction. Note that the non-crimped portion 15 may be disposed with a narrower distance between it and the first opposing surface portion 24 than the distance between it and the second opposing surface portion 25.

[0031] The crimped portion 14 is formed to be thicker than the non-crimped portion 15, and is formed to be thicker than the gap dimension G between the two opposing surface portions 24, 25 at least at the thickest portion. The crimped portion 14 bites into at least one (either one or both) of the two opposing surface portions 24, 25, and deforms at least one of the opposing surface portions 24, 25. In this state, the crimped portion 14 and the tube portion 11 are crimped and fixed to the opposing surface portions 24, 25. At a location between the crimped portion 14 of the crimped nut 10 and the flange 13, the lower frame body 20 is sandwiched between the crimped portion 14 and the flange 13. In addition to being crimped and fixed, the crimped nut 10 is attached to the lower frame body 20 by sandwiching the lower frame body 20.

[0032] Here, the crimped portion 14 bites into both of the two opposing surface portions 24, 25. The distance between the non-crimped portion 15 and the first opposing surface portion 24 is narrower than the distance between the non-crimped portion 15 and the second opposing surface portion 25. Accordingly, the amount of penetration of the crimped portion 14 into the first opposing surface portion 24 is greater than the amount of penetration of the crimped portion 14 into the second opposing surface portion 25, and the crimped portion 14 bites into the first opposing surface portion 24 more than into the second opposing surface portion 25. At the position of the crimped portion 14, the opposing surface portions 24, 25 are deformed by the force received from the crimped portion 14, for example, deformed into a concave shape corresponding to the outer surface shape of the crimped portion 14.

[0033] Comparing the amount of deformation of the portions (deformed portions 24B, 25B) deformed by the crimping of the crimping portion 14 of the opposing surface portions 24, 25, the amount of deformation of the deformed portion 24B of the first opposing surface portion 24 is greater than the amount of deformation of the deformed portion 25B of the second opposing surface portion 25. In this manner, the deformed portion 24B of the first opposing surface portion 24 is deformed greater than the deformed portion 24B of the second opposing surface portion 25. In addition, when the deformation of the deformed portion 24B of the first opposing surface portion 24 becomes large, deformation may occur in the outer surface (upper surface) of the deformed portion 24B of the first opposing surface portion 24 located on the opposite side of the gap 28. In this case, the deformed portion 24B of the first opposing surface portion 24 is deformed in a convex shape on the outer surface side, and the outer surface of the deformed portion 24B of the first opposing surface portion 24 rises up.

[0034] The cover 30 has a plate-shaped first cover portion 31 and a second cover portion 32, and an insertion hole 33 formed in the second cover portion 32. The insertion hole 33 penetrates the second cover portion 32 in the indoor / outdoor direction S. A screw 40 is inserted into the insertion hole 33 from the outdoor side and into the inside of the tubular portion 11 of the crimp nut 10. The screw 40 is screwed into and engaged with the threaded portion 12 of the crimp nut 10, and is attached to the crimp nut 10. The second cover portion 32 of the cover 30 is sandwiched between the head of the screw 40 and the wall portion 26, and the second cover portion 32 and the cover 30 are attached to the dripping portion 23 of the lower frame body 20 by the screw 40.

[0035] The cover 30 is disposed outside the gap 28 between the two opposing surface portions 24, 25, and covers at least one of the two opposing surface portions 24, 25 (here, the first opposing surface portion 24) with the first covering portion 31. The first covering portion 31 of the cover 30 protrudes toward the interior side and is disposed along the first opposing surface portion 24 on the upper side of the first opposing surface portion 24. The cover 30 covers the portion of the first opposing surface portion 24 where the crimping portion 14 is crimped and fixed and the deformed portion 24B with the first covering portion 31 outside the gap 28. The deformed portion 24B of the first opposing surface portion 24 is shielded by the first covering portion 31 of the cover 30. The second covering portion 32 of the cover 30 protrudes downward and is disposed along the wall portion 26 on the exterior side of the wall portion 26, covering the wall portion 26.

[0036] In the mounting structure 7 of the crimp nut 10 described above, the tubular portion 11 of the crimp nut 10 can be easily disposed in the gap 28 between the two opposing surfaces 24, 25, and the tubular portion 11 can be easily crimped and fixed to the opposing surfaces 24, 25. Therefore, the crimp nut 10 can be easily mounted to the lower frame body 20 by crimping. The crimp portion 14 increases the resistance to pulling the tubular portion 11 out of the gap 28, and increases the resistance to pulling the tubular portion 11 from the opposing surfaces 24, 25. This improves the mounting strength of the crimp nut 10 mounted to the lower frame body 20. In addition, the crimp portion 14 bites into the opposing surfaces 24, 25, improving the strength of the crimping fixation of the crimp portion 14 to the opposing surfaces 24, 25.

[0037] The distance between the non-crimped portion 15 and the first opposing surface portion 24 is narrower than the distance between the non-crimped portion 15 and the second opposing surface portion 25. Therefore, deformation of the second opposing surface portion 25 due to the crimping of the crimped portion 14 can be suppressed. In addition, the degree of deformation of the two opposing surface portions 24, 25 due to the crimping of the crimped portion 14 can be adjusted to ensure the design of the lower frame body 20 on the second opposing surface portion 25 side. Even when deformation occurs on the outer surface of the first opposing surface portion 24 due to the force received from the crimped portion 14 due to the crimping of the crimped portion 14, deformation of the second opposing surface portion 25 can be suppressed.

[0038] The crimping nuts 10 and screws 40 allow the cover 30 to be easily attached to the lower frame body 20. Also, the mounting strength of the cover 30 to the lower frame body 20 can be improved. The structure required for mounting the cover 30 can be simplified, reducing costs. By covering the portion of the first opposing surface portion 24 where the crimping portion 14 is crimped and fixed with the cover 30, the deformed portion 24B of the first opposing surface portion 24 can be hidden by the cover 30, improving the design of the lower frame body 20.

[0039] The cover 30 may cover the second opposing surface portion 25 or both of the two opposing surface portions 24, 25. The two opposing surface portions 24, 25 are not limited to the opposing portions of the drip edge portion 23, which is a hollow portion, and may be, for example, opposing ribs, wall portions, protruding pieces, or convex portions. The fitting 1 may be a fitting other than a fixed window (for example, an opening and closing window, a sliding window, or a door). The resin member to which the crimp nut 10 is attached may be a resin member of the fitting 1 other than the lower frame body 20 (for example, a resin member other than the lower frame body 20 of the frame body 3, a resin member of the frame), or may be a resin member other than the resin member of the fitting 1. The mounting member attached to the resin member may be a member other than the cover 30, and includes various parts (for example, hinges, stays) attached to the resin member. The present invention can be applied to various mounting structures of crimp nuts having crimp nuts and resin members.

[0040] As described above, the mounting structure of the crimp nut is as follows: A mounting structure for a crimp nut in which the crimp nut is attached to a resin member by crimping, The resin member has two opposing surfaces that face each other with a gap therebetween, The crimp nut has a cylindrical portion disposed in a gap between the two opposing surface portions, The cylindrical portion has a crimping portion that is crimped and fixed to the two opposing surface portions, The crimping portion is formed in a part of the cylindrical portion so as to be thicker than a gap dimension between the two opposing surface portions, The portion of the cylindrical portion other than the crimped portion is a mounting structure for a crimp nut that is narrower than the gap dimension. Therefore, the mounting strength of the crimp nut attached to the resin member can be improved.

[0041] The crimping portion bites into at least one of the two opposing surface portions. Therefore, the strength of the crimping portion to the opposing surface portion can be improved by the crimping portion biting into the opposing surface portion.

[0042] The portion of the cylindrical portion other than the crimped portion is spaced apart from one of the two opposing surface portions by a smaller distance than the other opposing surface portion. Therefore, it is possible to suppress deformation of the other opposing surface portion due to the crimping of the crimping portion. Also, by adjusting the degree of deformation of the two opposing surface portions due to the crimping of the crimping portion, it is possible to ensure the design of the resin member on the other opposing surface portion side.

[0043] The crimp nut mounting structure includes a mounting member attached to the resin member by a screw that screws into the crimp nut. Therefore, the mounting member can be easily attached to the resin member by using the crimp nut and the screw.

[0044] The mounting member covers a portion of the opposing surface where the crimping portion is crimped and fixed. Therefore, the portion deformed by the crimping portion of the opposing surface can be hidden by the mounting member, thereby improving the design of the resin member.

[0045] The fixture is equipped with a mounting structure for a crimp nut. Therefore, the mounting strength of the crimp nut attached to the resin member of the fixture can be improved. [Explanation of symbols]

[0046] Reference Signs List 1...door, 2...panel body, 3...frame body, 3A...opening, 4...upper frame, 5...lower frame, 6...vertical frame, 7...crimping nut mounting structure, 10...crimping nut, 11...tubular portion, 12...threaded portion, 13...flange, 14...crimping portion, 15...non-crimping portion, 20...lower frame body, 21...projection portion, 22...holding portion, 23...water drainage portion, 24...first opposing surface portion, 24A...lower surface, 24B...deformed portion , 25···second opposing surface portion, 25A···upper surface, 25B···deformed portion, 26···wall portion, 27···mounting hole, 27A···upper portion, 27B···lower portion, 28···gap, 30···cover, 31···first cover portion, 32···second cover portion, 33···insertion hole, 40···screw, 50···edge, E···center line, F···center line, G···gap dimension, R1···diameter, R2···diameter, R3···diameter, S···indoor / outdoor direction, T···central surface.

Claims

1. A mounting structure for a crimp nut in which the crimp nut is attached to a resin member by crimping, The resin member has two opposing surfaces that face each other with a gap therebetween, The crimp nut has a cylindrical portion disposed in a gap between the two opposing surface portions, The cylindrical portion has a crimping portion that is crimped and fixed to the two opposing surface portions, The crimping portion is formed on a part of the cylindrical portion so as to be thicker than a gap dimension between the two opposing surface portions, A mounting structure for a crimped nut in which the portion of the tubular portion other than the crimped portion is narrower than the gap dimension, and the distance between one of the two opposing surface portions is narrower than the distance between the other opposing surface portion.

2. In the crimp nut mounting structure according to claim 1, The crimping portion is adapted to bite into at least one of the two opposing surface portions.

3. In the crimp nut mounting structure according to claim 1 or 2, A crimp nut mounting structure comprising a mounting member attached to the resin member by a screw that screws into the crimp nut.

4. In the crimp nut mounting structure according to claim 3, The mounting member is a mounting structure for a crimp nut that covers a portion of the opposing surface where the crimp portion is crimped and fixed.

5. A fitting comprising the crimp nut mounting structure according to any one of claims 1 to 4.

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