JP6426476B2 - Snap fastener - Google Patents

Description

  The present invention relates to a snap fastener, and more specifically, it is configured to be attachable to, for example, a cloth of a garment by using two members of a male fitting member or a female fitting member and a base member into which it is fitted. It relates to snap fasteners.

  For example, a set of fabric hooks (an example of a snap fastener) sewn on a metal cuff and a metal female snap that are resiliently fitted to each other, for example, at the bottom of the pants. Also, for example, a pair of snap buttons (an example of snap fasteners) made of brass or iron plated with chrome or nickel on a male snap and a female snap are used for sportswear, coats and the like.

  However, these male snaps and female snaps are both made of metal and are heavier than synthetic resins, and have the problem of becoming heavier when plated. Moreover, even if it does not plate, metal male snap / female snap also has the subject that a manufacturing cost is high. The metal male and female snaps are made of the same material, and the selection of colors is limited to one color, and a snap button that looks good has been desired.

  The present invention has been made in consideration of the above-mentioned matters, and it is possible to reduce weight and cost, and to provide a snap fastener which can expand its range of color choices. The purpose is.

In order to achieve the above object, the present invention provides a male fitting member or a female fitting member in which a through hole is formed in a central portion;
And a base member having a fitting recess portion in which the male fitting member or the female fitting member can be fitted in a central portion, and a sewing hole formed in an outer peripheral portion for sewing into a fabric,
Further, the base member has, at a central portion, a cylindrical portion coaxially penetrating the through hole of the male fitting member or the female fitting member fitted in the fitting recess portion,
In a male fitting member or a female fitting member, a snap fastener in which the fitting member is fixed and installed in a fitting concave portion by striking and expanding the diameter of a tip of the cylindrical portion. There,
The snap fitting (claim 1) is characterized in that the fitting member is made of a material made of thermoplastic synthetic resin whose color can be selected.

  Further, the present invention provides the snap fastener (claim 2) according to claim 1, wherein the thermoplastic synthetic resin is polyacetal or nylon, and the base member is made of a metal material.

  Furthermore, the present invention provides the snap fastener (claim 3) according to claim 1, wherein the base member is made of the same thermoplastic synthetic resin material as the fitting member.

  In the present specification and claims, the male fitting member and the female fitting member may be collectively referred to as "the fitting member".

  In the invention according to claim 1 of the present application, for example, by using a material of the male fitting member as a thermoplastic synthetic resin, the following effects and effects unique to the present application are exerted. (1) The weight can be reduced as compared with the prior art using metal male snaps. (2) The male fitting member is a single injection-molded product, which does not require plating for rust prevention or color coating, and only needs to change the inner surface shape of the mold. As compared with the case of the technology, the manufacturing efficiency can be improved and the manufacturing cost can be reduced. (3) It is easy to manufacture the male type fitting member different in color from the base member which is another component member only by selecting the color of the material resin. That is, it is possible to obtain a snap fastener which can select a color different from the color of the base member and can select a maximum of two colors. In addition, since the male fitting member can be selected to have various colors, it is possible to provide a snap fastener that can be expanded and made more attractive than the prior art. By appropriately combining the color of the base member and the color of the male fitting member, it is possible to select, for example, two good-looking colors matching the color of clothes as the color of the button, thereby further improving the design as a decorative button It can contribute to raising consumers' willingness to purchase than conventional products. The same effects can be obtained for the female mold.

  Furthermore, the invention which concerns on Claim 1 of this application has an effect shown below. (4) In the invention according to claim 1 of the present application, the cylindrical portion of the base member coaxially penetrates the through hole of the male fitting member or the female fitting member fitted into the fitting recess of the base member. The snap fastener can be positioned on the fabric through the tubular portion. Therefore, it is not necessary to separately form a center alignment hole of the male fitting member and the female fitting member attached to the fabric. That is, in the cylindrical portion of the invention according to claim 1 of the present application, the male fitting member or the female fitting member does not come off, and the male fitting member and the female fitting member are misaligned. There is an effect that it serves as both a positioning function (centering function) that is attached to the fabric so as to be fitted tightly without.

  In the invention according to claim 2 of the present application, for example, the male fitting member and the above-mentioned male fitting member are made by using a thermoplastic synthetic resin as the male fitting member and a metal member as a base member which is another component member. With the base member, it is possible to obtain a snap fastener capable of selecting up to two colors. The metal base member can be manufactured inexpensively by a simple operation of forming a seat by bending a metal plate with, for example, a press machine. Furthermore, since the male fitting member is a single injection-molded product, it can be manufactured inexpensively, and the male fitting member and the base member can be mass-produced.

  In the invention according to claim 3 of the present application, for example, the material of the male fitting member and the base member is made of a thermoplastic synthetic resin, so that the following specific effects and advantages can be obtained. (1) The weight can be reduced as compared with the prior art using metal male snaps. (2) Both the male fitting member and the base member are formed as a single injection molded product, and there is no need for anticorrosion plating or color coating, and only the shape of the inner surface of the mold needs to be changed. As compared with the prior art which manufactures, while being able to improve manufacturing efficiency, manufacturing cost can be made cheap. (3) It is easy to manufacture the male fitting member and the base member of different colors only by selecting the color of the material resin. That is, even if it is possible to select different colors for the male fitting member and the base member, the invention according to claim 3 of the present invention is the base member compared to the case where the base member is made of metal. Since the raw material is a thermoplastic synthetic resin, the manufacturing cost can be reduced. In addition, a base member made of thermoplastic synthetic resin can be provided with a concavo-convex pattern such as characters and figures on the surface of the base member, for example, only by changing the inner surface of the mold. By combining it with, it is possible to further improve the design as a decorative button, and to contribute to raising the consumer's purchase will than the conventional products. The same effects can be obtained for the female mold.

BRIEF DESCRIPTION OF THE DRAWINGS It is schematic structure explanatory drawing for describing the 1st Embodiment of this invention. It is a top view which shows the base member used by the said embodiment. (A) is a top view which shows the detail of the male type | mold fitting member shown in FIG. (B) is a BB sectional view taken on the line in FIG. 3 (A). (C) is a perspective view which shows the said male fitting member. It is schematic structure explanatory drawing for describing the 2nd Embodiment of this invention. (A) is a top view which shows the detail of the female type | mold fitting member shown in FIG. (B) is the DD sectional view taken on the line in FIG. 5 (A). (C) is a perspective view showing the female fitting member.

  1 to 3 show a first embodiment of the present invention showing a snap fastener constituted by two members of a male fitting member and a base member in which it is fitted.

  In FIG. 1 to FIG. 3, the snap fastener D has a male fitting member 2 having a through hole H formed at its central portion, and a fitting concave portion A to which the male fitting member 2 can be fitted. And a base member 3 having a sewing sewing hole 5 formed in an outer peripheral portion for sewing into a fabric (not shown). Furthermore, the base member 3 has a cylindrical portion F coaxially penetrating the through hole H of the male fitting member 2 fitted into the fitting recess A at the central portion. h is the hole of the tubular part F, which acts as a positioning hole for centering when sewing the snap fastener D on the fabric. 6 is a seat which constitutes the outer peripheral portion 3 a of the base member 3.

  The male fitting member 2 is a single injection-molded article made of a material made of thermoplastic synthetic resin whose color can be selected. In this embodiment, polyacetal is used as the thermoplastic synthetic resin, and a color matching the color of clothes is used. The color variation is various and, for example, white, black, rose, saxophone, gray, pink, green, orange, mustard, navy blue, moss green, beige, dark gray, brown and the like can be mentioned. Nylon or the like may be used as the thermoplastic synthetic resin. Further, in this embodiment, the base member 3 is made of metal. In addition, the width | variety of selection of a color can be further expanded by comprising the base member 3 from the raw material of thermoplastic synthetic resin's same material as the male type fitting member 2. FIG.

  In this embodiment, as described above, the base member 3 is made of metal, and a brass stand, a zinc stand and the like can be mentioned. For example, a brass stand as the base member 3 can be manufactured inexpensively by a simple operation of forming the seat 6 by bending a brass plate with a press, for example. Further, since the male fitting member 2 is also a single injection-molded product, it can be manufactured at low cost, and both members 3 and 2 can be mass-produced.

  Thus, the cylindrical portion F of the base member 3 is inserted into the through hole H of the male fitting member 2 from the back surface b side of the base member 3 while the cylindrical portion protrudes from the through hole H The hammering can be performed by striking the tip end F ′ of F with a hammer K from above. That is, the male part is fitted in the fitting recess A of the brass base 3 by striking the tip F 'to expand and deform as shown by a dotted line in FIG. 1 and caulking the tip f. The snap fastener D which fixedly installs the joint member 2 can be comprised.

  Then, the snap fastener D is attached to the fabric by threading through the sewing holes 5 of the base member 3.

  FIG. 3 shows the male fitting member 2. The male fitting member 2 has two annular projections 7 and 8 which are circular in plan view and concentric with each other. The inner annular projection 7 is provided with a recess 9 for locking the caulked tip portion f of the cylindrical portion F in a separable manner, and the through hole H communicates with the recess 9. It penetrates the part 2a. In addition, the inner annular projection 7 has a plurality of cutouts P in the upper edge portion 7a. Reference numeral 11 denotes a step that allows the crimped tip portion f of the cylindrical portion F to abut, and is formed on the surface between the lower edge of the inner annular protrusion 7 and the outlet 12 of the through hole H. Further, the outer annular projection 8 has an outer peripheral surface n formed with an inclined surface in which the outer diameter gradually decreases from the lower side to the upper side. Then, as shown in FIG. 1, in a state in which the male fitting member 2 is fitted into the fitting recess A, the male fitting member 2 is elastically deformed. That is, due to elastic deformation, the outer annular surface n of the outer annular projection 8 abuts against the inner circumferential surface a in the vertical state forming the fitting recess A in a state where the outer circumferential projection 8 is pressed, and the inner annular projection The part 7 is also elastically deformed.

  FIGS. 4 and 5 show a second embodiment of the present invention showing a snap fastener composed of two members, a female fitting member and a base member in which it is fitted. In FIGS. 4 and 5, the same reference numerals as those used in FIGS. 1 to 3 denote the same or corresponding parts.

  In FIG. 4 and FIG. 5, the snap fastener D ′ is a female fitting member 2 ′ having a through hole H formed in the central portion, and a fitting recess A in which the female fitting member 2 ′ can be fitted. And a base member 3 having a sewing sewing hole 5 formed in an outer peripheral portion to be sewn into a cloth (not shown). Furthermore, the base member 3 has a cylindrical portion F coaxially penetrating the through hole H of the female fitting member 2 ′ fitted in the fitting concave portion A in the central portion. h is a hole in the tubular part F, which serves as a positioning hole for centering when sewing on a fabric. 6 is a seat which constitutes the outer peripheral portion 3 a of the base member 3.

  The female fitting member 2 'is a single injection-molded article made of a material made of thermoplastic synthetic resin whose color can be selected. In this embodiment, polyacetal is used as the thermoplastic synthetic resin, and a color matching the color of clothes is used. The color variation is various and, for example, white, black, rose, saxophone, gray, pink, green, orange, mustard, navy blue, moss green, beige, dark gray, brown and the like can be mentioned. Nylon or the like may be used as the thermoplastic synthetic resin. Further, in this embodiment, the base member 3 is made of metal. In addition, the width | variety of selection of a color can be further expanded by comprising the base member 3 from the raw material of thermoplastic synthetic resin's same material as female type | mold fitting member 2 '.

  In this embodiment, as described above, the base member 3 is made of metal, and a brass stand, a zinc stand and the like can be mentioned. For example, a brass stand as the base member 3 can be manufactured inexpensively by a simple operation of forming the seat 6 by bending a brass plate with a press, for example. Further, since the female fitting member 2 'is also a single injection-molded product, it can be manufactured at low cost, and both members 3, 2' can be mass-produced.

  Thus, the cylindrical portion F of the base member 3 is inserted into the through hole H of the female fitting member 2 ′ from the back surface b side of the base member 3 while the cylindrical portion protrudes from the through hole H By hammering the tip end F ′ of the part F with a hammer K from above, it can be crimped. That is, the tip end portion F 'is hit to expand and deform as shown by a dotted line in FIG. 4, and the tip end portion f is crimped, thereby fitting the female mold into the fitting recess portion A of the brass base 3 It is possible to construct a snap fastener D 'in which the coupling member 2' is fixedly installed.

  Then, the snap fastener D 'is attached to the fabric through the thread in the sewing hole 5 of the base member 3.

  FIG. 5 shows a female fitting member 2 '. The female fitting member 2 'is mainly composed of a bottom surface portion 7' having a circular plan view, and an outer peripheral portion 8 'having a ring shape and a U-shaped longitudinal section connected continuously from the bottom surface portion 7'. ing. The female fitting member 2 'is provided with a recess 9', and the through hole H penetrates the bottom surface 7 'so as to communicate with the recess 9'. Further, 11 'is a step that can be abutted against the crimped tip portion f of the cylindrical portion F, and is formed on the upper surface of the bottom portion 7'. That is, it is formed on the surface between the lower edge of the innermost circumferential surface q of the outer circumferential portion 8 ′ and the outlet 12 ′ of the through hole H. Further, the outer diameter of the outer peripheral portion 8 'is set to be larger than the inner diameter of the fitting concave portion A. In FIG. 4, when the female fitting member 2 'is fitted into the fitting recess A, the female fitting member 2' is elastically deformed. That is, due to elastic deformation, the outer peripheral surface n 'of the outer peripheral portion 8' is in contact with the inner peripheral surface a in the vertical state forming the fitting recess A in a state where the outer peripheral surface n 'is pressed.

  Then, the male fitting member 2 of FIG. 1 and the female fitting member 2 ′ of FIG. 4 are fitted. That is, the annular engagement projection Q formed on the upper end portion of the inner annular projection 7 of FIG. 3B is formed on the upper end portion of the innermost circumferential surface q of the outer peripheral portion 8 ′ of FIG. 5B. The male fitting member 2 and the female fitting member 2 'are fitted by snap-engaging on the annular engagement protrusion Q'.

Reference Signs List 2 male fitting member 3 base member 5 sewing hole H through hole A fitting recess F tubular portion F 'tip of tubular portion D snap fastener

Claims (3)

A male fitting member or a female fitting member in which a through hole is formed in a central portion;
And a base member having a fitting recess portion in which the male fitting member or the female fitting member can be fitted in a central portion, and a sewing hole formed in an outer peripheral portion for sewing into a fabric,
Further, the base member has, at a central portion, a cylindrical portion coaxially penetrating the through hole of the male fitting member or the female fitting member fitted in the fitting recess portion,
In a male fitting member or a female fitting member, a snap fastener in which the fitting member is fixed and installed in a fitting concave portion by striking and expanding the diameter of a tip of the cylindrical portion. There,
The snap fitting according to claim 1, wherein the fitting member is made of a material made of thermoplastic synthetic resin whose color can be selected.   The snap fastener according to claim 1, wherein the thermoplastic synthetic resin is polyacetal or nylon, and the base member is made of a metal material. The snap fastener according to claim 1, wherein the base member is made of the same thermoplastic synthetic resin material as the fitting member.

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