Holding member and snap fastener using same

Abstract

To provide a holding member that can miniaturize a female / male fitting member, can improve strength of the holding member, and can improve workability for mounting a snap fastener to the fabric, and to provide the snap fastener using the same.SOLUTION: A holding member 1 is provided for holding a female / male fitting member to make a snap button in a predetermined position of the fabric such as clothes. The holding member has: a main body 4 having a shape or size where insertion into a through-hole formed in the fitting member is impossible; and a substantially columnar shaft body 5 protruded from the main body 4, and enabling insertion from the one end side of the through-hole and having a portion being exposed from the other end side with respect to the through-hole. A front side area of the shaft body 5 exhibits an approximately tubular shape. The tip end portion of the front side area is divided into three parts in the circumferential direction, and a locking projection 11 capable of being locked to an opening edge of the other end side of the through-hole is provided in the outer circumferential surface of the shaft body 5.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a technique for attaching a snap fastener (a fastener for clothing) consisting of, for example, male and female snap buttons that fit together elastically, to the fabric of clothing or the like without using a dedicated tool. [Background technology]

[0002] Snap fasteners that can be attached to fabrics such as clothing without using dedicated tools are known (for example, Patent Document 1), and the retaining member 51 shown in Fig. 7(A), the female fitting member 60 shown in Fig. 7(C), and the male fitting member 70 shown in Fig. 7(D) constitute such snap fasteners. That is, the recessed portion 61 of the female fitting member 60 shown in Fig. 7(C) and the protruding portion 71 of the male fitting member 70 shown in Fig. 7(D) can be elastically fitted to each other, and the retaining member 51 can hold the male and female fitting members 60, 70 at predetermined positions on the fabric C, and no dedicated tool such as a punch is required to hold them. Note that one set of snap fasteners requires two retaining members 51 and one each of the fitting members 60, 70.

[0003] In detail, as shown in Figure 7 (A), the holding member 51 has a disk-shaped main body 52 and a shaft body 53 protruding from the center of the main body 52. ​​Two bulged portions 54 protruding outward are formed on the outer periphery of the tip of the shaft body 53, 180 degrees apart, and a slit 55 is cut from the tip surface of the shaft body 53 between the two bulged portions 54.

[0004] On the other hand, the female fitting member 60 has a through hole 62 at the bottom of the recess 61, as shown in Figure 7(C), and a similar through hole (not shown) is provided at the bottom of the approximately cylindrical protrusion 71 of the male fitting member 70 shown in Figure 7(D).

[0005] To hold the female fitting member 60 with the holding member 51, the shaft 53 of the holding member 51 is passed through a hole H (see FIG. 7(A)) provided in the fabric C of a garment or the like, and the shaft 53 is projected from the upper surface side of the fabric C while the main body 52 is positioned on the lower surface side of the fabric C as shown in FIG. 7(B). Then, as shown in FIG. 7(C), the female fitting member 60 is brought close to the shaft 53 of the holding member 51 from the upper surface side of the fabric C, and the shaft 53 is inserted straight from below into the through hole 62 of the fitting member 60. When this insertion is performed, the two bulging parts 54 at the tip of the shaft 53 are reduced in diameter by the slits 55 and then restored in diameter, so that each bulging part 54 passes through the through hole 62 and engages with the opening edge of the through hole 62, and the fitting member 60 is held in a predetermined position (position of the hole H) of the fabric C by the holding member 51. The male fitting member 70 can also be held by the holding member 51 in the same manner. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2014-145404 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the above conventional snap fastener, because the structure allows the diameter of the expanded portion 54 to be reduced by the slit 55, in order that the expanded portion 54, which has returned to its original diameter after passing through the through-hole 62, can be firmly engaged with the opening edge of the through-hole 62 and the shaft body 53 cannot slip out of the through-hole 62, it is necessary to enlarge the expanded portion 54 to a certain extent both in the radial direction and in the axial direction of the shaft body 53. However, if the expanded portion 54 is enlarged, the recessed portion 61 and the protruding portion 71 of the male and female mating members 60, 70 that receive the expanded portion 54 must also be enlarged, and the increase in size of the male and female mating members 60, 70 causes a problem in that when the end of a garment or the like to which they are provided is closed, a large gap will form at that location.

[0008] Furthermore, in the conventional snap fasteners described above, the slits 55 are deep, which may reduce the strength of the shaft 53 including the expanded diameter portion 54. If the slits 55 were shallower, a considerable force would be required to pass the expanded diameter portion 54 through the through hole 62.

[0009] Furthermore, in the above-mentioned conventional snap fastener, in order for the retaining member 51 to hold the female fitting member 60, it is necessary to insert the shaft 53 of the retaining member 51 straight into the through hole 62 of the female fitting member 60 from below. However, since the tip side of the shaft 53 is split into two by the slit 55, depending on the orientation of the shaft 53 around its axis during insertion, the female fitting member 60 is likely to tilt relative to the shaft 53, making the insertion operation time-consuming.

[0010] The present invention has been made with the above-mentioned matters in mind, and its object is to provide a retaining member and a snap fastener using the same which can reduce the size of the male and female mating members, improve the strength of the retaining member, and improve the ease of attaching the snap fastener to the fabric. [Means for solving the problem]

[0011] In order to achieve the above object, the holding member according to the present invention comprises: Elastically fitting A retaining member for retaining a female or male fitting member constituting a snap button at a predetermined position on the fabric of a garment or the like, the retaining member comprising a main body having a shape or size that makes it impossible to insert into a through hole formed in the fitting member, and a retaining member protruding from the main body and capable of being inserted into the through hole from one end side and partially exposed from the other end side. During this insertion, the diameter is reduced. The shaft body has a generally cylindrical shape, and a front region of the shaft body has a generally cylindrical shape, and a tip portion of the front region is divided into three in the circumferential direction. The portion of the front region excluding the tip portion has a cylindrical shape that is continuous in the circumferential direction. Additionally, a locking projection capable of being locked to the opening edge on the other end side of the through hole is provided on the outer circumferential surface of the shaft (claim 1).

[0012] In the above-mentioned holding member, the locking projection may be a ridge extending in a circumferential direction on the outer circumferential surface of the shaft body, and a plurality of the locking projections may be provided at intervals in the axial direction of the shaft body (claim 2).

[0013] On the other hand, in order to achieve the above-mentioned object, the snap fastener of the present invention comprises a female or male snap button constituting the snap fastener, which comprises a retaining member as described in claim 1 or 2, and a female or male engaging member which is held in a predetermined position on the fabric of clothing or the like by the retaining member (claim 3). Effect of the Invention

[0014] The present invention provides a retaining member and a snap fastener using the same that can reduce the size of the male and female fitting members, improve the strength of the retaining member, and improve the ease of attaching the snap fastener to the fabric.

[0015] In other words, in the retaining member of the invention according to each claim of the present application, by making the tip region of the shaft generally cylindrical rather than providing a slit therein, it is possible to reduce the deformability (degree of diameter reduction) of the shaft when it is inserted into the through hole of the fitting member, and as a result, the locking protrusion that locks onto the opening edge of the through hole can be made small. Furthermore, the tip region itself, which is generally cylindrical and does not provide a slit, can be made smaller due to its structure (without any problems in terms of strength), which means that it is possible to reduce the size of the fitting member that receives the tip region of the shaft and the locking protrusion.

[0016] Furthermore, in the holding member of the present invention, the tip region of the shaft is not provided with a slit but is generally cylindrical, thereby making it possible to improve the strength thereof.

[0017] Furthermore, in the retaining member of the present invention, the tip portion of the tip region of the shaft is divided into three in the circumferential direction, so that the fitting member is less likely to tilt relative to the shaft regardless of the axial direction of the shaft during insertion, making it easier to insert. Also, if the tip portion of the tip region of the shaft is divided into four or more in the circumferential direction, its strength is likely to decrease, but by dividing it into three, it is possible to prevent this decrease in strength.

[0018] In the retaining member of the invention as claimed in claim 2, by providing a plurality of locking protrusions spaced apart in the axial direction of the shaft, it is possible to accommodate variations in the thickness of the fabric to which the snap fastener is attached. [Brief description of the drawings]

[0019] [Figure 1] 1(A) and 1(B) are a perspective view and a plan view of a retaining member constituting a snap fastener according to one embodiment of the present invention. [Diagram 2] FIG. 2A is a front view of the holding member, and FIG. 2B is a cross-sectional view taken along line AA of FIG. [Diagram 3] 1A to 1C are a perspective view from above, a perspective view from below and a plan view of a female fitting member constituting the snap fastener, and FIG. 1D is a cross-sectional view taken along line AA of FIG. [Figure 4] 1A to 1C are a perspective view from above, a perspective view from below and a plan view of a male fitting member constituting the snap fastener, and FIG. 1D is a cross-sectional view taken along line AA of FIG. [Diagram 5] 13(A) and 13(B) are a perspective view and a longitudinal sectional view of a modified example of the holding member. [Figure 6] FIG. 11 is a perspective view of another modified example of the holding member. [Figure 7] 1A and 1B are explanatory diagrams showing how a retaining member of a conventional snap fastener is set on fabric, and 1C and 1D are explanatory diagrams showing how a female mating member and a male mating member are held by the retaining member of a conventional snap fastener. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An embodiment of the present invention will be described below.

[0021] The retaining member 1 shown in Figures 1 and 2, the female fitting member 2 shown in Figure 3, and the male fitting member 3 shown in Figure 4 constitute a snap fastener that can be attached to fabric such as clothing without using a dedicated tool, and correspond to the retaining member 51 and fitting members 60 and 70 shown in Figure 7. That is, one set of snap fasteners in this example is composed of one retaining member 1 and a female fitting member 2 to form a female snap button, and another retaining member 1 and a male fitting member 3 to form a male snap button.

[0022] As described above, just as the retaining member 51 constituting a conventional snap fastener is intended to hold the engaging members 60, 70 in a predetermined position on the fabric C of clothing or the like (where a hole H is made with an appropriate tool such as an awl; see Figure 7(A)), the retaining member 1 is intended to hold the engaging members 2, 3 constituting a snap button in a predetermined position on the fabric C of clothing or the like.

[0023] As shown in FIGS. 1 and 2, the holding member 1 has a substantially disk-shaped main body 4 and a shaft body 5 protruding from the center of one surface side (upper surface side) of the main body 4.

[0024] The main body 4 has a shape or size that makes it impossible to insert into the through hole 6 (see Figs. 3(A)-(D)) formed in the female fitting member 2 and the through hole 7 (see Figs. 4(B)-(D)) formed in the male fitting member 3. In addition, a plurality of spike-like small protrusions 8 that bite into the fabric C and prevent the main body 4 from rotating about its axis are formed at equal intervals in the circumferential direction around the shaft 5 on one side (top side) of the main body 4. The small protrusions 8 may have any suitable shape that can exert this rotation prevention function, and may be, for example, approximately cylindrical as shown in Fig. 1(A) or may be cylindrical with a sharpened tip to form a cone as shown in Fig. 2(B).

[0025] The shaft 5 has a generally cylindrical shape that can be inserted into the through holes 6, 7 of the male and female fitting members 2, 3 from one end side and partially exposed from the other end side. A recessed portion 9a is formed extending from the center of the tip surface of the tip region 9 (shaft 5) toward the base end side so that the tip region 9 (see FIG. 2(B)) of the shaft 5 has a generally cylindrical shape. The length of this tip region 9 (recessed portion 9a) is considered to be about 1 / 4 to 1 / 2 of the overall length of the shaft 3.

[0026] The tip portion of the tip region 9 is divided into three in the circumferential direction to provide three protrusions 10, and the outer circumferential surface of the shaft body 5 is provided with locking projections 11 that can be locked to the opening edges of the other ends (upper ends) of the through holes 6, 7. Here, the locking projections 11 are ridges (annular projections) that extend in the circumferential direction on the outer circumferential surface of the shaft body 5, and a plurality of the locking projections 11 (a total of five in the illustrated example) are provided at intervals in the axial direction of the shaft body 5.

[0027] On the other hand, the recess 12 of the female fitting member 2 shown in Figure 3 and the protrusion 13 of the male fitting member 3 shown in Figure 4 can be elastically fitted into each other, and the other end (upper end) of the through hole 6 faces the bottom of the recess 12, and the other end (upper end) of the through hole 7 faces the bottom of the protrusion 13.

[0028] The method of holding the male and female mating members 2, 3 by the retaining member 1 can be performed in the same manner as the method of holding the male and female mating members 60, 70 by the retaining member 51 constituting the conventional snap fastener shown in Figure 7, and therefore a description thereof will be omitted to avoid duplication.

[0029] In the snap fastener of this example configured as described above, the female and male fitting members 2, 3 can be made smaller, the strength of the holding member 1 can be improved, and the workability of attaching the snap fastener to the fabric C can be improved.

[0030] That is, in the retaining member 1 of this example, by making the tip region 9 of the shaft 5 substantially cylindrical rather than providing a slit, it is possible to reduce the deformability (degree of diameter reduction) of the shaft 5 when it is inserted into the through holes 6, 7 of the male and female fitting members 2, 3, and accordingly the locking projections 11 that lock onto the opening edges of the through holes 6, 7 may be small, and the tip region 9 itself, which is substantially cylindrical and does not provide a slit, can be made small in size structurally (without problems in terms of strength), so that it is possible to reduce the size of the tip region 9 of the shaft 5 and the fitting members 2, 3 having the recesses 12 and protrusions 13 that receive the locking projections 11. For example, in the conventional snap fastener shown in Fig. 7, it is considered necessary that the outer diameter of the expanded portion 53 in the natural state be 0.5 mm or more larger than the inner diameter of the through hole 62, but the outer diameter of the locking projections 11 in this example can be made approximately 0.1 mm larger than the inner diameter of the through holes 6, 7.

[0031] Furthermore, in the holding member 1 of this embodiment, the tip region 9 of the shaft body 5 is not provided with a slit and is made substantially cylindrical, thereby making it possible to improve the strength thereof.

[0032] Furthermore, in the retaining member 1 of this example, the tip portion of the tip region 9 of the shaft body 5 is divided into three in the circumferential direction, which makes it difficult for the fitting members 2, 3 to tilt relative to the shaft body 5 regardless of the orientation around the axis of the shaft body 5 during insertion, making the insertion operation easier. Also, if the tip portion of the tip region 9 of the shaft body 5 is divided into four or more in the circumferential direction, its strength is likely to decrease, but by dividing it into three, it is possible to prevent this decrease in strength.

[0033] Furthermore, in the holding member 1 of this embodiment, by providing a plurality of locking projections 11 spaced apart in the axial direction of the shaft body 5, it is possible to accommodate variations in thickness of the fabric C to which the snap fastener is to be attached.

[0034] It is to be noted that the present invention is not limited to the above-described embodiment, and can be modified in various ways without departing from the spirit and scope of the present invention. For example, the following modifications can be mentioned.

[0035] Figures 1(A) and 2(B) show an example in which a total of five locking protrusions 11 are provided on the outer peripheral surface of the shaft body 5, but the number of locking protrusions 11 is not limited to this and may be four or less or six or more. For example, as shown in Figures 5(A) and (B), only one locking protrusion 11 may be provided on the outer peripheral surface of the tip region 9.

[0036] 6, the locking projection 11 may extend in a spiral shape on the outer circumferential surface of the shaft body 5. As shown in FIG. [Explanation of symbols]

[0037] 1 Holding member 2 Female fitting member 3 Male mating member 4. Main unit 5-axis body 6 Through holes 7 Through hole 8 small protrusions 9 Distal area 9a Recessed section 10 Protrusion 11 Locking protrusion 12 Recess 13 Convex 51 Holding member 52 Main unit 53 Axial body 54 Expansion part 55 Slit 60 Female fitting member 61 Recess 62 Through hole 70 Male fitting member 71 Convex C Fabric H hole

Claims

1. A retaining member for retaining a female or male fitting member constituting an elastically engaging snap button in a predetermined position on the fabric of a garment or the like, a body having a shape or size that makes it impossible to insert into a through hole formed in the fitting member; a generally cylindrical shaft body that protrudes from the main body, is capable of being inserted into the through hole from one end side thereof and is partially exposed from the other end side thereof, and reduces in diameter during the insertion; A retaining member in which the front region of the shaft is roughly cylindrical, the tip portion of the front region is divided into three circumferentially, the portion of the front region excluding the tip portion is cylindrical and continuous in the circumferential direction, and a locking protrusion is provided on the outer surface of the shaft that can be engaged with the opening edge on the other end side of the through hole.

2. 2. The holding member according to claim 1, wherein the locking projections are circumferentially extending protrusions on the outer circumferential surface of the shaft body, and a plurality of the locking projections are provided at intervals in the axial direction of the shaft body.

3. A snap fastener comprising a female or male snap button constituting a snap fastener, the snap fastener comprising a retaining member as described in claim 1 or 2, and a female or male mating member which is held in a predetermined position on the fabric of clothing or the like by the retaining member.

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