JPWO2010143255A1 - Snap member - Google Patents

Abstract

The snap members 10, 40, and 60 have insertion portions 16, 46, and 66 having circular insertion ports 17, 47, and 67 into which the post portion 31 of the snap attachment member 30 that penetrates the flexible base material 20 is inserted. The formed member main bodies 11, 41, 61 are provided. The member main bodies 11, 41, 61 are groove portions 18, 48, 68 formed around the insertion ports 17, 47, 67 of the insertion portions 16, 46, 66 via annular wall portions 19, 49, 69. It has. The insertion portions 16, 46, and 66 have a tapered shape in which the diameters of the insertion ports 17, 47, and 67 are smaller than the diameter of the post portion 31 of the snap attachment member 30 and gradually increase in diameter in the depth direction. Is formed.

Description

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

  Generally, there are male and female snap members, which are each attached to a flexible substrate such as a cloth of clothing by a snap attachment 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 the post portion of the snap attachment member is passed through the cloth and inserted into the insertion slot of the snap member, the post section may entangle the cloth into the insertion slot 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 snap fastener composed of a rivet member and a fitting member, a small-diameter hole portion having a steeply inverted conical inner peripheral surface is formed in a through hole for inserting a protrusion provided in the fitting member. A large-diameter hole portion having a gently-inclined inverted conical inner peripheral surface is formed in this order from the back surface side, and the minimum inner diameter of the small-diameter hole portion is slightly smaller than the diameter of the protrusion.
According to such a configuration, even when a hard resin is used as the material of the rivet member, it is possible to easily perform the expansion deformation by striking the protrusion tip of the protrusion, and the root of the protrusion or the base of the expansion deformation portion. It is described that it is possible to prevent cracks from being generated and to prevent dragging of the flexible sheet into the through hole of the flexible sheet.

Japanese Utility Model Publication No. 62-25138 JP-A-8-299028

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). There is a problem that it remains as it is after the attachment, and the aesthetic appearance of the attached state of the snap member (male fitting body) is impaired.
Moreover, the snap member described in Patent Document 2 includes a small diameter hole portion and a large diameter hole portion in which the insertion portion (through hole) into which the post portion (projection) is inserted has a diameter smaller than the diameter of the post portion. However, even if it is formed in such a two-stage configuration, a large force is still required when inserting the post part, and the load on the post part when inserting further is large, and the post part buckles. There is.

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 having a circular insertion hole into which a post portion of the snap mounting member is inserted, the member main body being provided with an annular wall portion around the insertion port of the insertion portion; The insertion portion has a tapered shape in which the diameter of the insertion port is smaller than the diameter of the post portion of the snap mounting member, and the diameter gradually increases as it advances in the depth direction. Is formed.

According to such a configuration, when the post portion of the snap attachment member penetrates the flexible base material and is inserted into the insertion portion of the snap member, the insertion portion has a diameter of the insertion port. Therefore, it is possible to satisfactorily suppress the flexible substrate from being caught in the insertion port. In addition, since the insertion part is formed in a tapered shape that gradually increases in diameter as it goes in the depth direction, a large force is required to pass the post part through the insertion port and insert it completely into the insertion part. It becomes easy to insert. In addition, since the member main body includes a groove formed around the insertion port via an annular wall, when the post is inserted into the insertion, the surrounding wall is displaced into the groove so that the post Absorbs the pressing force from. Thereby, buckling can be favorably prevented by suppressing the load on the post portion of the snap attachment member, and can be stably attached to the flexible substrate.
Here, the above-mentioned “diameter of the post portion” may be the diameter of the tip portion of the post portion or the diameter of a specific portion of the side surface.

  Moreover, the snap member which concerns on this invention WHEREIN: In one aspect | mode, the said groove part is continuously formed in the circumference | surroundings of the insertion port of the said insertion part, and is cyclically | annularly formed.

  According to such a configuration, when the post portion is inserted into the insertion portion, the surrounding wall portion is continuously displaced into the groove portion formed in an annular shape, so that the pressing force from the post portion is not localized. Absorb with good balance overall. For this reason, the load to the post portion is more favorably suppressed, and the occurrence of buckling can be prevented more favorably.

  Moreover, the snap member which concerns on this invention has the width | variety which can accommodate the displacement amount of the said wall part produced when the said groove part inserts the said post part in the said insertion part in another one aspect | mode.

  According to such a configuration, the groove portion absorbs the pressing force from the post portion by accommodating the amount of displacement of the wall portion into the groove portion when the post portion is inserted into the insertion portion. For this reason, the load to a post part is suppressed favorably and generation | occurrence | production of buckling can be prevented favorably.

  Moreover, the snap member which concerns on this invention is formed in the shape where the wall thickness of the said wall part reduces gradually from a front-end | tip to a base end in another one aspect | mode.

  According to such a configuration, since the wall portion is displaced into the groove portion with the base end having a small thickness as a base point, the wall portion is easily displaced when the post portion is inserted into the insertion portion. For this reason, the load to the post portion is more favorably suppressed, and the occurrence of buckling can be prevented more favorably.

  Moreover, the snap member which concerns on this invention is another one aspect | mode. The several notch extended in the depth direction of the said insertion part is formed in the said wall part.

  According to such a structure, when a post part is inserted in the insertion part of a snap member, the wall part divided by the notch by the pressing force from a post part will each expand outside. Therefore, the load on the post portion is suppressed more favorably, and the occurrence of buckling can be prevented better.

  Moreover, the snap member which concerns on this invention is another one aspect | mode. WHEREIN: The said wall part is formed so that it may protrude from the surface in the side in which the said groove part in the said member main body is formed.

  According to such a configuration, when the post portion is inserted into the insertion portion, when the post portion bites in from the back surface of the flexible base material and lifts the flexible base material, the protruding end of the wall portion is By encroaching and pressing the surface of the flexible base material, it is possible to prevent the flexible base material from being caught in the insertion portion.

  According to the snap member of the present invention, when the post portion of the snap mounting member penetrates the flexible base material and is inserted into the insertion portion, the diameter of the insertion port of the insertion portion is smaller than the diameter of the post portion. Since it is formed, it is possible to satisfactorily suppress the flexible substrate from being caught in the insertion port. In addition, since the insertion part is formed in a tapered shape that gradually increases in diameter as it goes in the depth direction, a large force is required to pass the post part through the insertion port and insert it completely into the insertion part. It becomes easy to insert. In addition, since the member main body includes a groove formed around the insertion port via an annular wall, when the post is inserted into the insertion, the surrounding wall is displaced into the groove so that the post Absorbs the pressing force from. Thereby, buckling can be favorably prevented by suppressing the load on the post portion of the snap attachment member, and can be stably attached to the flexible substrate.

1 is a perspective view of a rear surface side of a snap member according to Embodiment 1. FIG. FIG. 2 is a cross-sectional view of the snap member according to the first embodiment. FIG. 3 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. 4 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. 5 shows a snap attachment member, a flexible base material in the vicinity of the insertion port in a state where the post portion has been inserted into the flexible base material by 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. 6 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. 7 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. 6 and the snap attachment member and the snap member are fixed. FIG. 8 is a perspective view of the rear surface side of the snap member according to the second embodiment. FIG. 9 is a cross-sectional view of the vicinity of the insertion port of the snap member according to the third embodiment.

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 perspective view of the rear surface side of the snap member 10 according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the snap member 10. FIG. 3 shows a cross-sectional view of the snap attachment member 30, the flexible base material 20, and the snap member 10 before the post portion 31 is inserted.

  The snap member 10 includes a member main body 11 and a protruding portion 12 formed on the back surface of the 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 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 includes a circular insertion port 17 provided on the back side of the member main body 11, that is, an inlet side of the post portion 31, and a circular opening 23 provided on the outlet side of the post portion 31. It has. The diameter of the insertion port 17 provided on the inlet side of the post part 31 is formed smaller than the diameter of the post part 31, and the diameter of the opening 23 provided on the outlet side of the post part 31 is formed larger than the diameter of the post part 31. Has been. The insertion portion 16 is formed in a tapered shape having a diameter that gradually increases from the insertion port 17 in the depth direction (the thickness direction of the main body substrate 13).

  The member main body 11 of the snap member 10 is provided with a groove portion 18 formed through an annular wall portion 19 around the insertion port 17 of the insertion portion 16. The groove portion 18 is preferably formed in an annular shape continuously around the insertion port 17 of the insertion portion 16. The groove portion 18 has a width that can accommodate the amount of displacement of the wall portion 19 that occurs when the post portion 31 is inserted into the insertion portion 16 and the wall portion 19 expands. The depth of the groove portion 18 is preferably ¼ or more and ¾ or less of the thickness of the main body substrate 13. The annular wall portion 19 is formed in a shape in which the radial thickness gradually decreases from the distal end to the proximal end.

  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 portion 32 and the post portion 31 can be formed of, for example, a resin material or a metal material. Among these, a resin material is particularly preferable from the viewpoint 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. 3, 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.

When the driving tool is further lowered from the state of FIG. 3, as shown in FIG. 4, the post portion 31 bites into the back surface 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 front end of the wall portion 19 bites into the surface side of the flexible base material 20 and tries to suppress the entanglement of the flexible base material 20 into the insertion portion 16. 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. 5, the insertion port 17 of the insertion portion 16 is slightly opened by plastic deformation and the wall portion 19 is pushed. Here, since the wall portion 19 is formed in a shape in which the radial thickness gradually decreases from the distal end to the proximal end, the proximal end has a smaller thickness than the distal end and is easily deformed. Therefore, the pushed wall portion 19 is tilted about the base end and displaced so as to enter the groove portion 18 from the distal end. At this time, the groove portion 18 accommodates the amount of displacement of the wall portion 19 to absorb the pressing force from the post portion. Thus, since the groove part 18 absorbs the displacement of the member main body 11 caused by the insertion of the post part 31, the movement of the member main body 11 with respect to the flexible base material 20 is suppressed, and the attachment position is stabilized.

  When the driving tool is further lowered from the state of FIG. 5, 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. 6. At this time, the diameter of the insertion port 17 of the insertion part 16 is formed smaller than the diameter of the post part 31, and the insertion port 17 of the insertion part 16 is further opened by plastic deformation. The groove part 18 formed around the insertion port 17 of the insertion part 16 accommodates the displacement amount of the wall part 19 at this time as much as possible. Further, since the post portion 31 is formed in a tapered shape in which the insertion portion 16 gradually expands in the depth direction, a large force is applied after passing through the insertion port 17 having the smallest diameter in the insertion portion 16. It is easily inserted without adding. Further, since the post portion 31 is not subjected to a large load while being inserted, the occurrence of buckling is also suppressed. In this embodiment, although the insertion port 17 of the insertion part 16 is opened by plastic deformation, it is not restricted to this, After deform | transforming by applying a load, the magnitude | size of the insertion port 17 will return to the original state. It may be due to the elastic deformation to be attempted.

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, when the driving tool continues to descend, the hammer provided on the shaft core portion of the driving tool strikes the tip of the post portion 31 to expand and deform (flange attachment). As shown, the snap attachment member 30 and the snap member 10 are fixed to the flexible substrate 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)
FIG. 8 is a perspective view of the rear surface side of the snap member 40 according to the second embodiment of the present invention.

  The snap member 40 includes a member main body 41 and a protruding portion 42 formed on the back surface of the 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 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 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 member main body 41 and the protrusion 42 are 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 of the snap attachment member penetrating the flexible base material 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 a circular insertion port 47 provided on the back surface side of the member main body 41, that is, an inlet side of the post portion 31, and a circular opening provided on the outlet side of the post portion 31 (not illustrated). As shown). The diameter of the insertion port 47 provided on the inlet side of the post part 31 is formed smaller than the diameter of the post part 31, and the diameter of the opening provided on the outlet side of the post part 41 is formed larger than the diameter of the post part 31. ing. The insertion portion 46 is formed in a tapered shape having a diameter that gradually increases from the insertion port 47 in the depth direction (the thickness direction of the main body substrate 43).

  The member main body 41 of the snap member 40 is provided with a groove portion 48 formed through an annular wall portion 49 around the insertion port 47 of the insertion portion 46. The groove portion 48 is formed around the insertion port 47 of the insertion portion 46. The groove portion 48 has a width that can accommodate the amount of displacement of the wall portion 49 that occurs when the post portion 31 is inserted into the insertion portion 46 and the wall portion 49 expands. The depth of the groove portion 48 is preferably ¼ or more and ¾ or less of the thickness of the main body substrate 43. The annular wall portion 49 is formed in a shape in which the radial thickness gradually decreases from the distal end to the proximal end. A plurality of notches 50 extending in the depth direction of the insertion portion 46 are formed in the wall portion 49. The notches 50 are preferably formed at point-symmetric positions from the center of the insertion port 47 in order to expand the wall portion 49 in a balanced manner when the post portion of the snap attachment member is inserted. The number, width, and depth of the notches 50 are not particularly limited, but are appropriately determined to be optimal values in relation to the diameter of the post portion 31 and the elastic force of the material constituting the member main body 41, respectively.

  In the snap member 40 according to the second embodiment, as described above, a plurality of notches 50 extending in the depth direction of the insertion portion 46 are formed in the wall portion 49 sandwiched between the insertion portion 46 and the groove portion 48. Therefore, when the post portion 31 of the snap attachment member 30 is inserted into the insertion portion 46 of the snap member 40, the wall portions 49 divided by the notches 50 are expanded outwardly by the pressing force from the post portion. Thereby, the insertion port 47 of the insertion part 46 is opened by elastic deformation, so that the pressing force from the post part 31 is absorbed. Therefore, the load on the post portion 31 is satisfactorily suppressed, and the occurrence of buckling can be satisfactorily prevented.

(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. 9 is a sectional view of the vicinity of 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 a circular insertion port 67 provided on the back surface side of the member main body 61, that is, the inlet side of the post portion 31, and a circular opening 63 provided on the outlet side of the post portion 31. It has. The diameter of the insertion port 67 provided on the inlet side of the post part 31 is formed smaller than the diameter of the post part 31, and the diameter of the opening 63 provided on the outlet side of the post part 31 is formed larger than the diameter of the post part 31. Has been. The insertion portion 66 is formed in a tapered shape having a diameter that gradually increases from the insertion port 67 in the depth direction (the thickness direction of the main body substrate).

  The member main body 61 of the snap member 60 is provided with a groove 68 formed through an annular wall 69 around the insertion port 67 of the insertion portion 66. The groove portion 68 is formed around the insertion port 67 of the insertion portion 66. The groove portion 68 has a width that can accommodate the amount of displacement of the wall portion 69 that occurs when the post portion 31 is inserted into the insertion portion 66 and the wall portion 69 expands. The depth of the groove 68 is preferably not less than 1/4 and not more than 3/4 of the thickness of the main body substrate. The wall portion 69 is formed in a shape in which the thickness in the radial direction gradually decreases from the distal end to the proximal end. The wall 69 is formed so as to protrude from the surface of the member body on the side where the groove 68 is formed.

  As described above, the snap member 60 according to the third embodiment is formed so that the wall portion 69 protrudes from the surface of the member main body on which the groove portion 68 is formed. When the post part 31 bites in from the back surface of the flexible base material 20 and lifts the flexible base material 20 when the part 31 is inserted into the insertion part 66, the protruding end of the wall part 69 is flexible. It is possible to prevent the flexible base material 20 from being caught in the insertion portion 66 by biting into the surface of the base material 20.

DESCRIPTION OF SYMBOLS 10 Snap member 11 Member main body 16 Insertion part 17 Insertion port 18 Groove part 19 Wall part 20 Flexible base material 30 Snap attachment member 31 Post part 40 Snap member 41 Member main body 46 Insertion part 47 Insertion port 48 Groove part 49 Wall Part 50 Notch 60 Snap member 61 Member main body 66 Insertion part 67 Insertion port 68 Groove part 69 Wall part

Claims (6)

A snap member 10, 40, 60 attached to the flexible substrate 20 by a snap attachment member 30 having a columnar post portion 31,
The snap members 10, 40, 60 have insertion portions 16, 46, having circular insertion ports 17, 47, 67 into which the post portion 31 of the snap attachment member 30 penetrating the flexible base material 20 is inserted. 66 is provided with member bodies 11, 41, 61 in which 66 is formed,
The member main bodies 11, 41, 61 have groove portions 18, 48 formed around the insertion ports 17, 47, 67 of the insertion portions 16, 46, 66 via annular wall portions 19, 49, 69. 68,
The diameters of the insertion portions 16, 46, and 66 are smaller than the diameter of the post portion 31 of the snap attachment member 30 and gradually increase in diameter as the depth increases. The snap members 10, 40, 60 are characterized by being formed into a tapered shape.   2. The groove according to claim 1, wherein the grooves 18, 48, 68 are continuously formed around the insertion openings 17, 47, 67 of the insertion parts 16, 46, 66. Snap members 10, 40, 60.   The groove portions 18, 48, 68 have a width that can accommodate the amount of displacement of the wall portions 19, 49, 69 generated when the post portion 31 is inserted into the insertion portions 16, 46, 66. The snap member according to claim 1, 40, 60.   The snap members (10, 40, 60) according to claim 1, wherein the wall portions (19, 49, 69) are formed in a shape in which the radial thickness gradually decreases from the distal end to the proximal end.   The snap member 40 according to claim 1, wherein a plurality of notches 50 extending in a depth direction of the insertion portion 46 are formed in the wall portion 49.   2. The snap member 60 according to claim 1, wherein the wall portion 69 is formed so as to protrude from a surface of the member main body 61 on the side where the groove portion 68 is formed.

Images