JP5132490B2 - Male snap - Google Patents

Abstract

A male snap which can be configured from a single sheet of metal plate, which is reduced in size in the radial direction thereof, and which does not additionally require a portion for receiving a part of a mounting member.  A male snap (10, 10') is formed by drawing from a single sheet of metal plate such that the male snap comprises: a double wall structure base section (11) including a base upper section (11a) and a base lower section (11b); a single plate structure projecting section (12) projecting upward from the base section (11) and received on the female snap (20) side; and an engaging section (13, 13') extending from the front end of the projecting section (12) and swelling outward radially.  The base upper section (11a) extends inward radially from the base end of the projecting section (12) and receives a staking portion (33) of a mounting member (30) when the male snap (10, 10') is mounted to cloth (1).  The base lower section (11b) is turned downward from the inner end radially of the base upper section (11a) and extended outward radially.  The base lower section (11b) makes contact with the cloth (1) when the male snap is mounted thereto.

Description

  The present invention relates to a male snap, particularly a metal male snap, in a snap button used for a seam of clothes.

  2. Description of the Related Art Conventionally, a metal male snap that is formed by drawing a single metal plate is known. Such a male snap generally has a cylindrical projection that is received on the female snap side as disclosed in US Pat. No. 1,896,044, Japanese Patent Application Laid-Open No. 2006-68388, and the like. The double structure is composed of an inner cylindrical portion and an outer cylindrical portion. A portion extending radially inward from the base end (lower end) of the inner cylindrical portion plays a role of receiving a caulking portion of a mounting member such as a rivet when the male snap is attached to the cloth. The portion extending radially outward from the base end functions to sandwich the fabric with the disk-shaped base portion of the attachment member on the opposite side of the fabric during attachment. In such a double-structured projecting portion, when it is intended to reduce the diameter size, it is necessary to secure a space between the inner and outer cylindrical portions and the distance between them, and thus there is a limitation in reducing the diameter.

Another metal male snap is disclosed in US Pat. No. 1,782,164 in which only the tip of the protrusion is doubled. In this male snap, the tip of the protrusion is bulged outward in the radial direction, and this portion is locked to the female spring ring (12) when engaged with the female snap. In this male snap projection, compared to the double structure projection described above, it is easier to reduce the radial size, but when attaching to the fabric, the portion that receives the crimped portion of the mounting member (and / or Or the part which pinches | interposes cloth | dough between attachment member base parts) needed to be added using a separate metal plate.
US Pat. No. 1,896,044 JP 2006-68388 A US Pat. No. 1,782,164

  The present invention has been made paying attention to the above points, and the object thereof is a portion that can be formed from a single metal plate, can be easily downsized in the radial direction, and receives a part of the mounting member. It is to provide a male snap that does not need to be added separately.

  According to the present invention, a metal male snap includes a base portion and a protruding portion that protrudes from the base portion and is received by the female snap side, and the cylindrical metal plate portion is single in the radial direction. A protrusion having a non-double structure, and an opening that opens to the center of the base, the base extending radially inward from the base end of the protrusion, defining the opening, A male snap that includes a base upper portion that receives a part of the attachment member when the snap is attached to the fabric, and a base lower portion that is turned downward from the radially inner end of the base upper portion and extends radially outward beyond the protrusion. Is provided.

  In the present invention, since the protrusion of the male snap has a single plate structure, it is not necessary to secure the plate thickness for two sheets and the interval between the inner and outer cylinders as in the case of the protrusion of the double structure. The diameter can be easily reduced.

  In the present invention, the base portion further includes a base upper portion extending radially inward from the base end of the protrusion, and a base upper portion that is inverted downward from the radial inner end of the base upper portion and extends radially outward. When the snap is attached to the fabric, the deformed portion of the mounting member can be received, and the lower part of the base serves to sandwich the fabric between the male snap and the base portion of the mounting member when the snap is attached to the fabric. As a result, the contact area with the fabric can be increased by the amount entering the inside in the radial direction from the protrusion.

  One embodiment of the present invention further includes a locking portion that extends from the tip of the protrusion and bulges outward in the radial direction. When the protrusion of the male snap is engaged with the recess of the female snap, the locking portion is provided with a locking portion on the female snap side (for example, a C-shaped spring, an M-shaped spring, or a surface defining the concave portion). It can be hooked on an elastically deformable portion that bulges inward in the radial direction) and can increase the separation resistance between the male and female snaps.

  In the present invention, the male snap can be obtained by drawing a single metal plate. Specific examples of the metal include brass, copper alloy, stainless steel, aluminum and the like.

  The male snap according to the present invention has a single-plate structure so that the projection can be easily downsized in the radial direction, and the base portion includes a base upper portion that receives a part of the mounting member when fixed to the fabric. There is no need to add a separate member for engagement with the base plate, and it can be formed from a single metal plate, including the protrusion and the base.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view of a male snap 10 according to an embodiment of the present invention, and FIG. 2 is a vertical cross-section of the male snap 10 of FIG. The male snap 10 is formed by drawing a single metal plate, and includes a substantially disc-shaped base portion 11 and a single-plate cylindrical structure protruding portion 12 protruding upward from the base portion 11. The locking portion 13 swells and terminates in an arc shape in a longitudinal section from the upper end of the protruding portion 12 to the outside in the radial direction and then downward, and is arranged at the center of the base portion 11, penetrates the base portion 11 in the vertical direction, and is circular And an opening 14 to be opened. The base portion 11 extends inward in the radial direction from the lower end of the protrusion 12 and defines an opening 14. The base portion 11 is inverted in a vertical U-shaped section downward from the radial inner end of the base upper portion 11 a to be radial. A base lower portion 11b extending outward and beyond the protrusion 12 to the outside is included. As will be described in detail later, the locking portion 13 is locked by a female side locking portion (C-shaped spring 22 in FIG. 3) when the male snap 10 is engaged with the female snap 20 (see FIG. 3). The base upper part 11a is a part that receives the caulking part 33 of the mounting member 30 when the male snap 10 is attached to the fabric 1 (see FIG. 3).

  FIG. 3 is a longitudinal sectional view showing a state in which the male snap 10 attached to the fabric 1 is engaged with the female snap 20. The male snap 10 is attached to the dough 1 using a press device (not shown) having an upper die for holding the male snap 10 and a lower die for mounting the attachment member. The shaft portion 32 of the mounting member 30 is inserted into the male snap 10 from the opening portion 14, and then the tip portion 33 of the shaft portion 32 is crimped to the base upper portion 11a. Thereby, the male snap 10 is fixed to the fabric 1. At this time, the base upper portion 11a is in contact with the caulking portion of the shaft portion 32, that is, the distal end portion 33, and receives the pressing force from the caulking portion 33, so that the fabric 1 is separated from the base lower portion 11b of the male snap 1 It is sandwiched between the base portion 31 of the mounting member 30. In addition, since the base part 11 is formed in a double structure including the base upper and lower parts 11a and 11b and the base lower part 11b extends radially inward from the protruding part 12, the part in contact with the fabric 11 in the male snap 10 ( The base lower part 11b) is expanded compared to a conventional male snap.

  In FIG. 3, the female snap 20 is also attached to the fabric 2 by the attachment member 40, and the female snap 20 is received in the concave portion 21 that receives the protrusion 12 of the male snap 10, and in the concave portion 21. And a C-shaped spring (female side locking portion) 22. When the protrusion 12 of the male snap 10 is inserted into the recess 21 of the female snap 20, first, the locking portion 13 comes into contact with the spring 22 and is elastically deformed radially inward (the spring 22 is also radially outward). When the spring 22 is exceeded, the locking portion 13 is restored radially outward (may not be completely restored), and the engagement of the male snap 10 and the female snap 20 is completed. . In this engaged state, the locking portion 13 is caught by the spring 22 and becomes a separation resistance between the male and female snaps 10 and 20. In addition to the C-shaped spring 22, the female-side locking portion may be a portion that bulges inward in the radial direction from the spring of the M shape or the side surface of the recess 21.

  FIG. 4 shows a male snap 10 ′ of the present invention having another type of locking portion 13 ′, which is the same as the male snap 10 described above except for the locking portion 13 ′. doing. The locking portion 13 (see FIG. 2) of the male snap 10 is curved radially outward from the upper end of the projection 12 and then downwards, and terminates radially outward from the projection 12. The locking portion 13 ′ of the male snap 10 ′ swells upward from the upper end of the projecting portion 12 in the shape of an arc of a longitudinal section outward in the radial direction, and returns to the substantially extended line of the projecting portion 12 at the uppermost point. The protrusion 12 is curved in the shape of an arc of a longitudinal section from the inside in the radial direction and then downward, and ends at the inside in the radial direction from the protrusion 12. The locking portion 13 ′ can also be engaged with the female locking portion in the same manner as the locking portion 13 by the portion bulging outward in the radial direction.

  The male snaps 10 and 10 'described above can be obtained by drawing a single metal plate, and the diameter size of the protrusion 12 having a single structure can be easily reduced. 33 can be received by the base upper portion 11a extending radially inward from the lower end of the protrusion 12, so that it is not necessary to add another member for receiving the crimped portion 33.

It is a partially broken perspective view of the male snap concerning one embodiment of the present invention. It is a longitudinal cross-sectional view of the male snap of FIG. It is a longitudinal cross-sectional view which shows the state which engaged the male snap of FIG. 1 attached to cloth | dough with a female snap. It is a longitudinal cross-sectional view of the male type snap which concerns on another embodiment of this invention.

Explanation of symbols

10, 10 'Male snap 11 Base part 11a Base upper part 11b Base lower part 12 Projection part 13, 13' Locking part 14 Opening part

Claims (2)

It is a metal male snap (10, 10 '), which is a base portion (11) and a protruding portion (12) protruding from the base portion (11) and received on the female snap (20) side, A non-double-structured protrusion (12) in which the cylindrical metal plate portion is single in the radial direction, and an opening (14) opening in the center of the base portion (11),
The base portion (11) extends radially inward from the base end of the protrusion (12) to define the opening (14), and the male snap (10, 10 ′) is attached to the fabric (1). A base upper part (11a) that sometimes receives a part (32) of the mounting member (30), and reverses downward from the radially inner end of the base upper part (11a) to extend radially outward beyond the protrusion (12) look including a base lower part (11b) extending,
The male snap (10, 10 ') is a male snap formed from a single metal plate . A locking portion (13, 13 ') that extends from the tip of the protrusion (12) and bulges outward in the radial direction and is locked by the female locking portion when engaged with the female snap. 1 male snap.

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