WO2011007452A1

WO2011007452A1 - Snap member

Info

Publication number: WO2011007452A1
Application number: PCT/JP2009/063000
Authority: WO
Inventors: 建二長谷川; 裕之杉山
Original assignee: Ykk株式会社
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2011-01-20
Also published as: CN102469849B; JPWO2011007452A1; JP5306462B2; CN102469849A

Abstract

A snap member (10, 40, 60, 80, 100) is provided with a member body (11, 41, 61, 81, 101) in which an insertion section (16, 46, 66, 86, 106) is formed. The insertion section (16, 46, 66, 86, 106) has an insertion opening (17, 47, 67, 87, 107) into which a post section (31) of a snap mounting member (30), the post section (31) penetrating through a flexible base member (20), is inserted. The member body (11, 41, 61, 81, 101) has wedge-shaped edge sections (18, 48, 68, 88, 108) having tips (19, 49, 69, 89, 109) and formed at the insertion opening (17, 47, 67, 87, 107) of the insertion section (16, 46, 66, 86, 106) so as to be arranged in the circumferential direction of the insertion opening (17, 47, 67, 87, 107).

Description

Snap member

The present invention relates to a snap member attached to a flexible base material such as a cloth of clothes, a resin sheet constituting a bag or a case.

The snap members are generally of a male type and a female type, and are each attached to a flexible base material such as a cloth of clothing by a snap mounting member having a protruding post portion. Specifically, the snap member is formed with an insertion port into which the post portion of the snap attachment member is inserted, and the post portion of the snap attachment member is penetrated through the cloth of clothing, etc., and is provided on the opposite side of the cloth or the like. By attaching the post portion of the snap attachment member to the insertion port of the snap member, the snap attachment member can be attached to the cloth or the like.

When inserting the post part of the snap mounting member through the cloth and inserting it into the insertion hole of the snap member, the post part may entangle the cloth into the insertion hole of the snap member. When the post portion winds the cloth into the insertion slot of the snap member, there is a problem that the resistance from the cloth becomes excessive and the snap mounting member is buckled. In addition, there is a problem that wrinkles occur in the dough when the dough is involved, and the aesthetic appearance after the snap member is attached to the dough is impaired.

As a snap member for such a problem, for example, Patent Document 1 has a recessed portion that can be elastically fitted to and detached from the annular post portion of the male fitting body, and the bottom of the recessed portion. At the center of the wall is a female fitting body having a through-hole through which a fastening projection for caulking that is driven from the back side of the base fabric is inserted, and is thin on the lower surface of the bottom wall and around the through-hole. An annular wall projecting integrally is disclosed.
And according to such a configuration, when the caulking projection is driven into the base cloth, the annular wall protruding around the through hole is deformed to the center side of the through hole by the frictional force with the base cloth, It is described that a part of the base fabric can be prevented from being brought into the through hole by the caulking protrusion by reducing the gap between the caulking protrusion and the through hole.

Further, in Patent Document 2, in a hook for inserting a stop leg of a stop member into a mounting hole of a male member or a female member and caulking the tip end of the stop leg, the mouth portion is inclined downward. The thing provided with the attachment hole which has a downward inclination opening | mouth is disclosed.
According to such a configuration, the fabric is well cut by the shearing force between the downward inclined opening and the horizontal end of the stop leg of the stop member, preventing the dough from being suspended during caulking, and mounting the hook It is described that wrinkles can be prevented from occurring in the fabric around the part.

Japanese Utility Model Publication No. 62-25138 No. 3-54565

However, since the snap member (male fitting body) described in Patent Document 1 displaces the annular wall by the frictional force of the base cloth, wrinkles are generated in the base cloth, and the wrinkles are snap members (male fitting body). It remains as it is after attaching, and there is a possibility that the aesthetic appearance of the attached state of the snap member (male fitting body) may be impaired.
In Patent Document 2, the fabric is not fixed to the snap member (female member) before the post portion (stop member) is inserted into the insertion portion (attachment hole). Then, in a state where the fabric is not fixed in this manner, the post portion (stopping member) is inserted into the insertion portion (mounting hole), and the downward inclined opening of the insertion portion (mounting hole) and the stopper leg of the stopping member are inserted. The dough is cut by shearing force with the horizontal end. For this reason, when inserting the post portion (stop member) into the insertion portion (attachment hole), the fabric is displaced, and it is difficult to stably attach the snap member (female member) to a desired position of the fabric. There is a fear.

As a result of intensive studies, the present inventors have found that the above-described problems can be solved by the snap member according to the following configuration.
That is, the snap member according to the present invention is a snap member that is attached to a flexible base material by a snap attachment member having a columnar post portion, and the snap member penetrates the flexible base material. A member main body having an insertion portion into which a post portion of the snap mounting member is inserted is formed, and the member main body is formed at an insertion port of the insertion portion, and the circumferential direction of the insertion port A wedge-shaped edge portion having a plurality of tips arranged in line with each other.

According to such a configuration, when the post portion of the snap attachment member is inserted into the insertion portion, the post portion first lifts the flexible base material into the insertion portion, but at that time, the post is formed in the insertion port. The tip of the wedge-shaped edge portion cuts into the flexible base material and fixes the flexible base material. For this reason, the winding of the flexible base material accompanying the approach of the post portion into the insertion portion can be suppressed, and the occurrence of wrinkles on the flexible base material can be satisfactorily suppressed. Further, by fixing the flexible base material when the post portion enters the insertion portion, the occurrence of the displacement of the flexible base material is suppressed, and the snap member is set to a desired shape of the flexible base material. It becomes possible to attach to the position stably.
Furthermore, since a plurality of the edge portions are arranged so as to be aligned in the circumferential direction of the insertion port, the edge portions bite into the flexible base material with a good balance and are fixed. For this reason, generation | occurrence | production of the wrinkle of a flexible base material can be suppressed more favorably, and also it becomes possible to attach a snap member stably by the desired position of a flexible base material.

Further, in one aspect, the snap member according to the present invention is formed such that the edge portion protrudes from the insertion port forming side surface of the member body toward the outside of the member body. .

According to such a configuration, when the flexible base material is provided between the snap attachment member and the snap member and the surface of the flexible base material is brought into contact with the member main body of the snap member, The tip of the edge portion formed so as to protrude from the surface on the insertion port forming side toward the outside of the member main body has already bite into the flexible base material. For this reason, a flexible base material can be fixed to some extent before inserting a post part in an insertion part. Therefore, the winding of the flexible base material into the insertion portion can be suppressed more favorably, and the generation of wrinkles can be suppressed better.

Moreover, the snap member according to the present invention, in yet another aspect, is formed such that the edge portion protrudes radially inward of the member body at the insertion port of the member body. A stepped portion extending in the depth direction of the insertion portion is formed on the side surface of the insertion portion from the edge portion formed in the insertion port.

According to such a configuration, the edge portion of the insertion opening bites into the flexible base material lifted by the post portion, and the step portion formed on the side surface of the insertion portion is also possible in the insertion portion. Since it bites into the flexible substrate, the flexible substrate can be more stably fixed.
Furthermore, since the edge portion does not protrude outward from the member main body, damage to the edge portion can be suppressed.

Further, in another aspect of the snap member according to the present invention, the step of the stepped portion gradually decreases from the edge portion in the depth direction of the insertion portion.

According to such a configuration, it is possible to increase the fixing force by enlarging the step of the step portion in the vicinity of the insertion port where it is necessary to fix the flexible base material that is to enter the insertion portion. The flexible base material and the insertion portion can be obtained by suppressing the winding of the flexible base material well and gradually reducing the step as the depth direction of the insertion portion becomes less necessary for the fixing force. The formation of an unnecessary gap between the two can be avoided.

According to the snap member of the present invention, when the post portion of the snap mounting member is inserted into the insertion portion, the tip of the wedge-shaped edge portion formed in the insertion port bites into the flexible base material and is flexible. Fix the adhesive substrate. For this reason, the winding of the flexible base material accompanying the approach of the post portion into the insertion portion can be suppressed, and the occurrence of wrinkles on the flexible base material can be satisfactorily suppressed. Further, by fixing the flexible base material when the post portion enters the insertion portion, the occurrence of the displacement of the flexible base material is suppressed, and the snap member is set to a desired shape of the flexible base material. It becomes possible to attach to the position stably.
Furthermore, since a plurality of the edge portions are arranged so as to be aligned in the circumferential direction of the insertion port, the edge portions bite into the flexible base material with a good balance and are fixed. For this reason, generation | occurrence | production of the wrinkle of a flexible base material can be suppressed more favorably, and also it becomes possible to attach a snap member stably by the desired position of a flexible base material.

FIG. 1 is a cross-sectional view of a snap member according to the first embodiment. FIG. 2 is a plan view of the rear surface side of the snap member according to the first embodiment. FIG. 3 is a perspective view of the rear surface side of the snap member according to the first embodiment. FIG. 4 is a cross-sectional view of the snap attachment member, the flexible base material, and the snap member before insertion of the post portion according to the first embodiment. FIG. 5 shows a snap attachment member, a flexible base material, and a snap member in the vicinity of the insertion port in a state where the post portion is further inserted into the insertion port and the flexible base material is lifted from the state of FIG. FIG. FIG. 6 shows a snap attachment member, a flexible base material in the vicinity of the insertion port in a state where the post unit is inserted into the insertion port by further inserting the post unit from the state of FIG. And it is an expanded sectional view of a snap member. FIG. 7 shows a snap attachment member, a flexible base material in the vicinity of the insertion port in a state where the post part penetrates the flexible base material by further inserting the post part into the insertion port from the state of FIG. And it is an expanded sectional view of a snap member. FIG. 8 is a sectional view of the snap attachment member, the flexible base material, and the snap member in which the post portion is completely inserted from the state of FIG. 7 and the snap attachment member and the snap member are fixed. FIG. 9 is a cross-sectional view of the snap member according to the second embodiment. FIG. 10 is a plan view of the rear surface side of the snap member according to the second embodiment. FIG. 11 is a perspective view of the rear surface side of the snap member according to the second embodiment. FIG. 12 is a cross-sectional view of the snap attachment member, the flexible base material, and the snap member before insertion of the post portion according to the second embodiment. FIG. 13 shows a snap attachment member, a flexible base material, and a snap member in the vicinity of the insertion port in a state where the post portion is further inserted into the insertion port and the flexible base material is lifted from the state of FIG. FIG. FIG. 14 is a plan view of the insertion port and the flexible base viewed from the member main body side in the state of FIG. FIG. 15 shows a snap attachment member, a flexible base material in the vicinity of the insertion port in a state in which the post unit is inserted into the insertion port by inserting the post unit into the insertion port from the state of FIG. And it is an expanded sectional view of a snap member. FIG. 16 shows a snap attachment member, a flexible base material in the vicinity of the insertion port in a state where the post part penetrates the flexible base material by further inserting the post part into the insertion port from the state of FIG. And it is an expanded sectional view of a snap member. FIG. 17 is a cross-sectional view of the snap attachment member, the flexible base material, and the snap member in which the post portion is completely inserted from the state of FIG. 16 and the snap attachment member and the snap member are fixed. FIG. 18 is an enlarged perspective view of an edge portion formed in the insertion port of the snap member according to the third embodiment. FIG. 19 is an enlarged perspective view of an edge portion formed in the insertion port of the snap member according to the fourth embodiment. FIG. 20 is a cross-sectional view of the snap member and the flexible base material according to the fifth embodiment in the vicinity of the snap member insertion port.

The configuration of the snap member according to the present invention will be described in detail below with reference to the drawings. In addition, the structure shown below is an illustration and the snap member which concerns on this invention is not limited to these.
In particular, in the present embodiment, a female member is exemplified as the snap member, but the present invention is not limited to this, and a male snap member may be used.

(Embodiment 1)
(Configuration of snap member 10)
1 is a cross-sectional view of the snap member 10 according to the first embodiment of the present invention, FIG. 2 is a plan view of the rear surface side of the snap member 10, and FIG. 3 is a perspective view of the rear surface side of the snap member 10. 4 shows a cross-sectional view of the snap attachment member 30, the flexible substrate 20, and the snap member 10 before the post portion 31 is inserted.

The snap member 10 includes a member main body 11. The member main body 11 includes a main body substrate 13 formed in a substantially disk shape, and a female fitting portion 14 protruding from the peripheral edge of the main body substrate 13 to the surface side. The fitting portion 14 is formed in a cylindrical shape, and includes an engaging portion 22 that protrudes radially inward at an upper end edge portion. The engaging portion 22 has a function of hooking and fixing the male snap member when the male snap member is fitted to the female snap member 10. The fitting portion 14 is provided with a ring-shaped protruding piece 21 that is folded outward from the upper end thereof and extends to the back surface side of the member main body 11. A protruding portion 12 is formed on the back surface of the member main body 11. A plurality of projecting portions 12 are formed on the back surface of the member main body 11 so as to be sharpened downward. The projecting portion 12 is formed in a substantially tapered columnar shape in the present embodiment, but may be any shape as long as it has a shape that can be satisfactorily caught by the surface of the flexible substrate 20, for example, approximately It may be formed in a substantially pyramid shape such as a triangular pyramid shape or a substantially quadrangular pyramid shape, or may be formed in a substantially conical shape or the like. The plurality of protruding portions 12 are provided at substantially equal intervals in the circumferential direction of the member main body 11. The snap member 10 is made of an elastic material such as a resin material. As the resin material, for example, polyacetal resin, polyester resin, PBT resin (polybutylene terephthalate resin) or the like can be used.

A plurality of reinforcing ribs 15 extending in the radial direction of the member main body 11 are formed from the outer surface of the main body substrate 13 to the inner surface of the protruding piece 21 of the fitting portion 14. The plurality of reinforcing ribs 15 are each formed in a rectangular parallelepiped shape or the like, and are provided at predetermined intervals in the circumferential direction of the member main body 11. An insertion portion 16 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted is formed at a substantially central portion of the main body substrate 13 of the member main body 11. The insertion portion 16 is formed in a columnar shape, and is provided on the back surface side of the member main body 11, that is, the circular insertion port 17 provided on the inlet side of the post portion 31 and the outlet side of the post portion 31. And a circular opening 23 formed therein.

A wedge-shaped edge portion 18 is formed at the insertion port 17 of the insertion portion 16. A plurality of edge portions 18 are arranged at predetermined intervals so as to be aligned in the circumferential direction of the insertion port 17. The edge portion 18 includes a tip 19 for biting into the flexible base 20 that is pushed into the insertion port 17 by the post portion 31. The edge portion 18 is formed so that the tip 19 protrudes from the surface of the member main body 11 on the insertion port forming side toward the outside of the member main body 11. Specifically, the edge portion 18 is formed so that the side surface of the insertion portion 16 extends to the outside of the member main body 11 as it is, and the side surface of the isosceles triangle whose area decreases as it proceeds to the outside of the member main body 11 is formed. The first side surface 25 is adjacent to the first side surface 25, and the second side surface 26 has a triangular inclined surface that has the vertices of the isosceles triangle (corresponding to the vertices of the tip 19) in the same manner. In addition, the third side surface 27 is formed in a triangular pyramid shape. The edge portion 18 is formed in a triangular pyramid shape in the present embodiment, but may be any shape as long as it has a shape that bites into the surface of the flexible base material 20 and is fixed. It may be formed in other pyramid shapes, and may be formed in a tapered cylindrical shape, a conical shape, or the like. Further, the tip 19 of the edge portion 18 may be sharp or rounded.

The snap attachment member 30 includes a base portion 32 and a post portion 31 that is formed so as to stand at a substantially central portion of the surface of the base portion 32 and penetrates the flexible base material 20 such as a cloth for clothes. ing. The base portion 32 is formed in a plate shape such as a substantially circular shape or a substantially rectangular shape, for example. The post part 31 is formed in a substantially cylindrical shape standing on the surface of the base part 32. The post portion 31 includes a columnar post body portion 33 extending from the surface of the base portion 32 and a triangular pyramid-shaped post top portion 34 extending from the post body portion 33.

The base part 32 and the post part 31 can be formed of, for example, a resin material or a metal material. Among these, a resin material is particularly preferable from the viewpoints of cost, light weight, ease of molding, and the like. As the resin material, for example, polyacetal resin, polyester resin, PBT resin (polybutylene terephthalate resin) or the like can be used. The base portion 32 and the post portion 31 are integrally formed.

(Method of attaching snap member 10)
Next, a method for attaching the snap member 10 according to the first embodiment of the present invention to the flexible base material 20 such as cloth for clothes will be described in detail with reference to the drawings. In the present embodiment, a method of attaching the snap attachment member 30 and the snap member 10 to the flexible base material 20 using a snap member attachment device (not shown) will be exemplarily described.

First, a flexible base material 20 such as a cloth for clothing to which the snap member 10 and the snap attachment member 30 are attached is prepared. A snap member attaching device (not shown) is also prepared. The snap member attaching device includes a fixed base, a driving tool that moves up and down with respect to the fixed base, and a hammer (not shown) provided on the shaft core portion of the driving tool.

Next, the snap attachment member 30 is set on the fixing base of the snap member attachment device so that the post portion 31 side faces upward, and the snap member 10 is set on the driving tool so that the insertion port 17 faces downward.
Subsequently, the driving tool of the snap member mounting device is lowered in a state where the flexible base material 20 is tensioned and interposed between the snap mounting member 30 and the snap member 10. When the driving tool is lowered, as shown in FIG. 4, the post portion 31 of the snap attachment member 30 and the insertion portion 16 of the snap member 10 face each other on both sides of the tensioned flexible base material 20.

4, when the driving tool is further lowered, as shown in FIG. 5, the post portion 31 bites into the back side of the flexible base material 20 and lifts the flexible base material 20. The raised flexible base material 20 is inserted into the insertion portion 16 while the post portion 31 is inserted. At this time, the tip 19 of the edge portion 18 bites into the surface side of the flexible base material 20 and is fixed, suppressing the winding of the flexible base material 20 into the insertion portion 16, and the flexible base material. Suppresses deviation. Further, the plurality of protruding portions 12 of the snap member 10 bite into the flexible base material 20 to form a catch.

Subsequently, when the driving tool is further lowered, as shown in FIG. 6, the post portion 31 breaks through the flexible base material 20 (or pushes out the eyes of the flexible base material, etc.). ) Proceed to the opening 23 side of the insertion part 16. At this time, since the tip 19 of the edge portion 18 bites into the surface side of the flexible base material 20 and is fixed, even if the post portion 31 further advances in this way, the insertion portion 16 of the flexible base material 20. , And the displacement of the flexible base material 20 is suppressed.
When the driving tool is further lowered from the state of FIG. 6, the post portion 31 penetrates the flexible base material 20 and protrudes from the opening 23 of the insertion portion 16 as shown in FIG. 7.

Subsequently, the driving tool is further lowered and the post portion 31 is completely inserted into the insertion portion 16. At this time, the substrate surface of the snap attachment member 30 and the surface of the member main body 11 of the snap member 10 press and fix the flexible base material 20 respectively. At this time, the tip of the post portion 31 protrudes completely from the insertion portion 16.
In this state, the driving tool continues to descend, and the hammer provided on the shaft core portion of the driving tool strikes the tip of the post portion 31 to cause expansion and deformation (flanging), as shown in FIG. Thus, the snap attachment member 30 and the snap member 10 are fixed to the flexible base material 20 by caulking.

(Embodiment 2)
The snap member is not limited to the one described in the first embodiment, and may be configured according to the second embodiment described below, for example.
(Configuration of snap member 40)
9 is a cross-sectional view of the snap member 40 according to the second embodiment of the present invention, FIG. 10 is a plan view of the back surface side of the snap member 40, and FIG. 11 is a perspective view of the back surface side of the snap member 40. 12 shows a cross-sectional view of the snap attachment member 30, the flexible base material 20, and the snap member 40 before the post portion 31 is inserted.

The snap member 40 includes a member main body 41. The member main body 41 includes a main body substrate 43 formed in a substantially disc shape, and a female fitting portion 44 protruding from the peripheral edge of the main body substrate 43 to the surface side. The fitting portion 44 is formed in a cylindrical shape, and includes an engaging portion 52 that protrudes radially inward at an upper end edge portion. The engaging portion 52 has a function of hooking and fixing the male snap member when the male snap member is fitted to the female snap member 40. The fitting portion 44 is provided with a ring-shaped protruding piece 51 that is folded outward from the upper end thereof and extends to the back surface side of the member main body 41. A projecting portion 42 is formed on the back surface of the member main body 41. A plurality of projecting portions 42 are formed on the back surface of the member main body 41 so as to be sharpened downward. The projecting portion 42 is formed in a substantially tapered columnar shape in the present embodiment, but may be any shape as long as it has a shape that bites into the surface of the flexible substrate 20 and is hooked well. It may be formed in a substantially pyramid shape such as a triangular pyramid shape or a substantially quadrangular pyramid shape, or may be formed in a substantially conical shape or the like. The plurality of protrusions 42 are provided at substantially equal intervals in the circumferential direction of the member main body 41. The snap member 40 is made of an elastic material such as a resin material. As the resin material, for example, polyacetal resin, polyester resin, PBT resin (polybutylene terephthalate resin) or the like can be used.

A plurality of reinforcing ribs 45 extending in the radial direction of the member main body 41 are formed from the outer surface of the main body substrate 43 to the inner surface of the protruding piece 51 of the fitting portion 44. The plurality of reinforcing ribs 45 are each formed in a rectangular parallelepiped shape or the like, and are provided at predetermined intervals in the circumferential direction of the member main body 41. An insertion portion 46 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted is formed at a substantially central portion of the main body substrate 43 of the member main body 41. The insertion portion 46 includes an insertion port 47 provided on the inlet side of the post portion 31 and an opening 53 provided on the outlet side of the post portion 31.

The insertion port 47 has a triangular protruding surface 56 that protrudes toward the inside in the radial direction of the member main body 41, and a wedge-shaped edge portion 48 with the apex portion of the protruding surface 56 as a tip 49 is formed. Has been. That is, the edge portion 48 is formed so as to protrude inward in the radial direction of the member main body 41 at the insertion port 46 of the member main body 41. A plurality of edge portions 48 are arranged so as to be arranged in the circumferential direction of the insertion port 47 without being spaced apart. The tip 49 of the edge portion 48 may be sharp or rounded. A stepped portion 57 extending in the depth direction of the insertion portion 46 is formed on the side surface of the insertion portion 46 from an edge portion 48 formed in the insertion port 47. The step portion 57 is formed so as to extend from the insertion port 47 of the insertion portion 46 to the opening 53. The stepped portion 57 is formed in a triangular pyramid shape that gradually decreases in cross-sectional area from the protruding surface 56 of the edge portion 48 in the depth direction of the insertion portion 46. That is, the level difference of the stepped portion 57 gradually decreases as it proceeds from the edge portion 48 in the depth direction of the insertion portion 46.
Further, the stepped portion 57 may not be formed so as to extend until reaching the opening 53 of the insertion portion 46, and may be formed halfway in the depth direction of the insertion portion 46. In this case, the side surface of the insertion portion 46 is cylindrical with no step from the portion where the step portion 57 ends to the opening 53.

(Method of attaching snap member 40)
Next, a method for attaching the snap member 40 according to the second embodiment of the present invention to the flexible base material 20 such as clothing cloth will be described in detail with reference to the drawings. In the present embodiment, a method of attaching the snap attachment member 30 and the snap member 40 to the flexible substrate 20 using a snap member attachment device (not shown) will be described as an example.

First, a flexible base material 20 such as a cloth for clothing to which the above-described snap member 40 and snap attachment member 30 are attached is prepared. A snap member attaching device (not shown) is also prepared. The snap member attaching device includes a fixed base, a driving tool that moves up and down with respect to the fixed base, and a hammer (not shown) provided on the shaft core portion of the driving tool.

Next, the snap attachment member 30 is set on the fixing base of the snap member attachment device so that the post portion 31 side faces upward, and the snap member 40 is set on the driving tool so that the insertion port 47 faces downward.
Subsequently, the driving tool of the snap member attaching device is lowered in a state where the flexible base material 20 is tensioned and interposed between the snap attaching member 30 and the snap member 40. When the driving tool is lowered, the post portion 31 of the snap attachment member 30 and the insertion portion 46 of the snap member 40 face each other on both sides of the tensioned flexible base material 20 as shown in FIG.

When the driving tool is further lowered from the state of FIG. 12, the post portion 31 bites into the back surface side of the flexible base material 20 and lifts the flexible base material 20 as shown in FIG. The lifted flexible base material 20 is inserted into the insertion portion 46 while the post portion 31 is inserted. At this time, the tip 49 of the edge portion 48 bites into the surface side of the flexible base material 20 and is fixed, suppressing the winding of the flexible base material 20 into the insertion portion 46, and the flexible base material Suppresses deviation. Further, the plurality of protruding portions 42 of the snap member 40 bite into the flexible base material 20 to form a catch. At this time, since the stepped portion 57 is formed on the side surface of the insertion portion 46, the stepped portion 57 is also bitten into the flexible base material 20 around which the stepped portion 57 is wound and fixed. Yes. FIG. 14 shows a plan view of the insertion port 47 and the flexible substrate 20 viewed from the member main body 41 side in the state of FIG.

Subsequently, when the driving tool is further lowered, as shown in FIG. 15, the post portion 31 breaks through the flexible base material 20 (or pushes out the eyes of the flexible base material, etc.). ) Proceed to the opening 53 side of the insertion portion 46. At this time, the tip 49 of the edge portion 48 bites into the surface side of the flexible base material 20 and is fixed, and the stepped portion 57 formed on the side surface also in the insertion portion 46 is the flexible base material 20. Therefore, even if the post portion 31 further advances in this manner, the insertion of the insertion portion 46 of the flexible base material 20 into the insertion portion 46 is suppressed, and the flexible base material 20 is displaced. Is suppressed. Moreover, since the level | step difference of the level | step-difference part 57 becomes small gradually as it goes to the depth direction of the insertion part 46 from the edge part 48, the insertion part 46 which does not require the fixing force of the flexible base material 20 so much. In the portion proceeding in the depth direction, formation of an unnecessary gap between the flexible base material 20 and the insertion portion 46 is avoided.
When the driving tool is further lowered from the state of FIG. 15, the post portion 31 penetrates the flexible base material 20 and protrudes from the opening 53 of the insertion portion 46 as shown in FIG. 16.

Subsequently, the driving tool is further lowered to insert the post portion 31 into the insertion portion 46 completely. At this time, the substrate surface of the snap attachment member 30 and the surface of the member main body 41 of the snap member 40 press and fix the flexible base material 20 respectively. At this time, the tip of the post part 31 protrudes completely from the insertion part 46.
In this state, when the driving tool continues to descend, the hammer provided at the shaft core portion of the driving tool strikes the tip of the post portion 31 to cause expansion and deformation (flanging), as shown in FIG. Thus, the snap attachment member 30 and the snap member 40 are fixed to the flexible base material 20 by caulking.

(Embodiment 3)
The snap member is not limited to those described in the first and second embodiments, and may be configured according to a third embodiment described below, for example.
(Configuration of snap member 60)
FIG. 18 is an enlarged perspective view of the edge portion 68 formed in the insertion port 67 of the snap member 60 according to the third embodiment.

The snap member 60 includes a member main body 61. The member main body 61 includes a main body substrate (not shown) formed in a substantially disk shape, and a female fitting portion (not shown) protruding from the periphery of the main body substrate to the surface side. An insertion portion 66 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted is formed at a substantially central portion of the main body substrate of the member main body 61. The insertion portion 66 includes an insertion port 67 provided on the back side of the member main body 61, that is, on the inlet side of the post portion 31, and an opening (not shown) provided on the outlet side of the post portion 31. Yes.

A wedge-shaped edge portion 68 is formed in the insertion port 67 of the insertion portion 66. The edge portion 68 includes a tip 69 for biting into the flexible substrate 20 pushed into the insertion port 67 by the post portion 31. The edge portion 68 is formed so that the tip 69 protrudes from the surface of the member main body 61 on the insertion port forming side toward the outside of the member main body 61. Specifically, the edge portion 68 is formed such that the side surface of the insertion portion 66 extends to the outside of the member main body 61 as it is, and the side surface of the isosceles triangle whose area becomes smaller as the outer side of the member main body 61 is advanced. The first side surface 75 is adjacent to the first side surface 75, and the second side surface 76 is a triangular inclined surface having the vertex of the isosceles triangle (corresponding to the vertex of the tip 69) as the respective vertex. In addition, the third side surface 77 is formed in a triangular pyramid shape. The edge portion 68 is formed in a triangular pyramid shape in the present embodiment, but may be any shape as long as it has a shape that bites into the surface of the flexible substrate 20 and is fixed. It may be formed in other pyramid shapes, and may be formed in a tapered cylindrical shape, a conical shape, or the like. Further, the tip 69 of the edge portion 68 may be sharp or rounded.

Further, the edge portions 68 are formed adjacent to each other so as to be continuous over the circumferential direction of the insertion port 67. Further, the edge portion 68 is formed to extend in the radial direction of the member main body 61. The apex 79 formed by the second side surface 76 and the third side surface 77 on the back surface of the member main body 61 is farther from the direction toward the radially outer side of the member main body 61 than that shown in the first embodiment. positioned.

As described above, the snap member 60 according to the third embodiment is formed adjacent to each other so that the edge portions 68 are continuous over the circumferential direction of the insertion port 67, so that the insertion port 67 is limited. More edge portions 68 can be formed in the space. For this reason, the flexible base material 20 can be better fixed by the more edge portions 68.
Further, since the edge portion 68 is formed so as to extend in the radial direction of the member main body 61, it is formed so as to extend in the radial direction of the member main body 61 after the snap member 60 is attached to the flexible base material 20. The distal end of the edge portion 68 that is pressed presses the flexible base material 20 around the insertion port 67, thereby favorably suppressing the flexible base material 20 from rotating around the post portion 31. it can. Therefore, the snap member 60 can be stably attached at a desired position of the flexible substrate 20.

(Embodiment 4)
The snap member is not limited to those described in the first to third embodiments, and may be configured according to a fourth embodiment described below, for example.
(Configuration of snap member 80)
FIG. 19 shows an enlarged perspective view of the edge portion 88 formed in the insertion port 87 of the snap member 80 according to the fourth embodiment.

The snap member 80 includes a substantially disc-shaped member main body 81. An insertion portion 86 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted is formed at a substantially central portion of the main body substrate of the member main body 81. The insertion portion 86 includes an insertion port 87 provided on the inlet side of the post portion 31 and an opening 93 provided on the outlet side of the post portion 31.

The insertion port 87 has a triangular projecting surface 96 projecting toward the inside in the radial direction of the member main body 81, and a wedge-shaped edge portion 88 having the apex portion of the projecting surface 96 as a tip 89 is formed. Has been. That is, the edge portion 88 is formed so as to protrude radially inward of the member main body 81 at the insertion port 86 of the member main body 81. A plurality of edge portions 88 are arranged at predetermined intervals along the circumferential direction of the insertion port 87. The tip 89 of the edge portion 88 may be sharp or rounded. A stepped portion 97 extending in the depth direction of the insertion portion 86 is formed on the side surface of the insertion portion 86 from an edge portion 88 formed in the insertion port 87. The step portion 97 is formed to extend from the insertion port 87 of the insertion portion 86 to the opening 93. The stepped portion 97 is formed in a triangular pyramid shape whose sectional area gradually decreases from the protruding surface 96 of the edge portion 88 in the depth direction of the insertion portion 86. That is, the level difference of the stepped portion 97 gradually decreases from the edge portion 88 in the depth direction of the insertion portion 86.
Further, the stepped portion 97 may not be formed so as to extend until reaching the opening 93 of the insertion portion 86, and may be formed halfway in the depth direction of the insertion portion 86. In this case, the side surface of the insertion portion 86 has a cylindrical shape with no step from the portion where the step portion 97 ends to the opening 93.

As described above, the snap member 80 according to the fourth embodiment is formed such that the edge portion 88 protrudes inward in the radial direction of the member main body 81 at the insertion port 87. Since the step portion 97 extending in the depth direction of the insertion portion 86 is formed from the edge portion 88 formed in the insertion port 87, the edge portion 88 is lifted by the post portion 31. While stepping into the base material 20, the stepped portion 97 formed on the side surface of the plug-in portion 86 also bites into the flexible base material 20 in the plug-in portion 86. For this reason, the flexible base material 20 can be more stably fixed.
Moreover, since the level | step difference of the level | step-difference part 97 becomes small gradually as it goes to the depth direction of the insertion part 86 from the edge part 88, the flexible base material 20 which is going to enter in the insertion part 86 is fixed. By increasing the level difference of the stepped portion 97 in the vicinity of the insertion port 87 where this is necessary, the fixing force is increased and the entrainment of the flexible base material 20 is suppressed well, and the fixing force is required so much. By gradually reducing the step as the depth of the insertion portion 86 disappears, formation of an unnecessary gap between the flexible base material 20 and the insertion portion 86 can be avoided.

(Embodiment 5)
The snap member is not limited to those described in the first to fourth embodiments, and may be configured according to the fifth embodiment described below, for example.
(Configuration of snap member 100)
In FIG. 20, sectional drawing of the insertion port 107 vicinity of the snap member 100 of the snap member 100 and the flexible base material 20 which concern on Embodiment 5 is shown.

The snap member 100 is provided with a substantially disc-shaped member main body 101. An insertion portion 106 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted is formed at a substantially central portion of the member main body 101. The insertion portion 106 is formed in a columnar shape, and is provided on the back side of the member main body 101, that is, the circular insertion port 107 provided on the inlet side of the post portion 31 and the outlet side of the post portion 31. And a circular opening 113 formed therein. A groove portion 102 having a predetermined width is formed on the back surface of the member main body 101 from the insertion port 17 of the insertion portion 106 toward the radially outer side of the member main body 101. The groove portion 102 is formed so as to continuously extend around the insertion portion 106.

A wedge-shaped edge portion 108 standing from the bottom surface of the groove portion 102 is formed at the insertion port 107 of the insertion portion 106. A plurality of edge portions 108 are arranged at predetermined intervals so as to be aligned in the circumferential direction of the insertion port 107. The edge portion 108 includes a tip 109 for biting into the flexible base material 20 that is pushed into the insertion port 107 by the post portion 31. The edge portion 108 is formed so that the side surface of the insertion portion 106 extends as it is, and has a side surface of an isosceles triangle whose area decreases as it goes to the outside of the member main body 101 as the first side surface 115. A triangular pyramid having a triangular inclined surface as a second side surface 116 and a third side surface 117 that are adjacent to the side surface 115 of the same, and have apexes of the isosceles triangle (corresponding to the apex of the tip 109) as the respective apexes. Is formed. The edge portion 108 is formed in a triangular pyramid shape in the present embodiment, but may be any shape as long as it has a shape that bites into the surface of the flexible substrate 20 and is fixed. It may be formed in other pyramid shapes, and may be formed in a tapered cylindrical shape, a conical shape, or the like. Further, the tip 109 of the edge portion 108 may be sharp or rounded.

As described above, the snap member 100 according to the fifth embodiment has a predetermined width on the back surface of the member main body 101 from the insertion port 107 of the insertion portion 106 toward the outer side in the radial direction of the member main body 101. A groove portion 102 extending continuously in the direction is formed, and a plurality of wedge-shaped edge portions 108 standing from the bottom surface of the groove portion 102 are formed in the insertion port 107. For this reason, when the flexible base material 20 is pushed into the insertion part 106 by the post part 31, the flexible base material 20 is also pushed into the groove part 102 formed around the insertion part 106 and is flexible. The base material 20 moves. At this time, as shown by the dotted line in FIG. 20, since the surface of the flexible base material 20 is inclined, the tip 109 of the edge portion 108 is in a state of being almost perpendicular to the flexible base material 20. I can bite in. Therefore, the tip 109 of the edge portion 108 can easily bite into the flexible base material 20, and the flexible base material 20 can be fixed better.

DESCRIPTION OF SYMBOLS 10 Snap member 11 Member main body 16 Insertion part 17 Insertion opening 18 Edge part 19 Tip 20 Flexible base material 30 Snap attachment member 31 Post part 40 Snap member 41 Member main body 46 Insertion part 47 Insertion opening 48 Edge part 49 Tip 57 Stepped portion 60 Snap member 61 Member body 66 Insertion portion 67 Insertion port 68 Edge portion 69 Tip 80 Snap member 81 Member body 86 Insertion portion 87 Insertion port 88 Edge portion 89 Tip 97 Stepped portion 100 Snap member 101 Member Body 106 Insertion part 107 Insertion slot 108 Edge part 109 Tip

Claims

A snap member 10, 40, 60, 80, 100 attached to the flexible substrate 20 by a snap attachment member 30 having a columnar post portion 31,
The snap members 10, 40, 60, 80, 100 have insertion ports 17, 47, 67, 87, 107 into which the post part 31 of the snap mounting member 30 penetrating the flexible base material 20 is inserted. Comprising member bodies 11, 41, 61, 81, 101 in which insertion parts 16, 46, 66, 86, 106 are formed,
The member main bodies 11, 41, 61, 81, 101 are formed in the insertion ports 17, 47, 67, 87, 107 of the insertion portions 16, 46, 66, 86, 106. Snap member 10 having wedge-shaped edge portions 18, 48, 68, 88, 108 having tips 19, 49, 69, 89, 109 arranged in a plurality so as to be arranged in the circumferential direction of 47, 67, 87, 107. 40, 60, 80, 100.
The edge portions (18, 68) are formed so as to project the tips (19, 69) toward the outside of the member main bodies (11, 61) from the insertion port forming side surface of the member main bodies (11, 61). The snap member 10, 60 according to 1.
The edge portions 48, 88 are formed so as to protrude radially inward of the member bodies 41, 81 at the insertion ports 47, 87 of the member bodies 41, 81;
On the side surfaces of the insertion portions 46 and 86, there are stepped portions 47 and 97 extending in the depth direction of the insertion portions 46 and 86 from the edge portions 48 and 88 formed in the insertion ports 47 and 87, respectively. The snap members (40, 80) according to claim 1, which are formed.
The snap members 40, 80 according to claim 3, wherein the steps of the step portions 47, 97 gradually decrease from the edge portions 48, 88 in the depth direction of the insertion portions 46, 86.