JP4531672B2 - Method for processing snap button and female snap - Google Patents

Description

  The present invention relates to a snap button composed of a pair of male snaps and female snaps, and a method for processing a female snap, and more particularly, a snap button in which a ring-shaped elastic member is added to a female snap, and processing of a female snap with a ring-shaped elastic member. Regarding the method.

  A snap button that engages and disengages a convex portion of a male snap with a convex portion receiving portion of a female snap is widely used in joints such as clothing and bags. Some of the uses of snap buttons require a particularly strong coupling force and separation resistance between male snaps and female snaps. One example is the crotch in female bodysuits for exercise, body shape correction, etc. The joint of the part is mentioned. A male snap is fixed to one of the two suit fabric parts that form the joint from the front and back, and a female snap is fixed to the other. When using the suit, the male snap is forward (or rearward) through each suit fabric part. The female snap has a lateral pulling force to the rear (or front). For this reason, if the coupling force and separation resistance between the male snap and the female snap are weak, the male / female snap of the suit crotch part will come off when the suit is used. In order to prevent this, a snap button in which a ring-shaped elastic member is added to a female snap to increase the above-described coupling force and separation resistance is disclosed in, for example, US Pat. No. 2,314,751 and Japanese Utility Model Laid-Open No. 62-7207. It is disclosed in the gazette.

  When the male snap convex portion is engaged with the female snap convex portion receiving portion, the ring-shaped elastic member has its inner diameter elastically expanded by the large diameter portion near the tip of the convex portion, and has passed the large diameter portion. After that, it acts to shrink in the restoring direction and hold the small diameter portion of the convex portion.

However, when a ring-shaped elastic member is added to increase the coupling force and separation resistance of the female snap to the male snap, the force required to remove the male / female snap at the crotch when removing the bodysuit increases. There was a problem that the suit was very difficult to take off.
US Pat. No. 2,314,751 Japanese Utility Model Publication No. 62-7207

  The present invention has been made in view of the above problems, and the purpose thereof is a snap button that is relatively easy to remove from a specific direction while maintaining a high coupling force and separation resistance between the male snap and the female snap. An object of the present invention is to provide a method of processing a female snap for obtaining a female snap in such a snap button.

  According to the present invention, in order to solve the above-mentioned problem, the male snap having a convex portion and the female snap having a convex portion receiving portion that receives the convex portion so as to be engageable and disengageable, the convex portion, A large-diameter portion near the tip and a small-diameter portion whose outer diameter is gradually reduced from the large-diameter portion, and the female snap is a convex portion when the male snap convex portion is engaged with the convex-portion receiving portion. The inner diameter of the large-diameter portion is elastically expanded and allowed to pass through the large-diameter portion. Then, the ring-shaped elastic member corresponding to the small-diameter portion is reduced in the restoring direction, and the ring-shaped elastic member is A snap button with a ring receiving part that opens and accommodates the inner side facing the center, and a low upper part is provided in which the height of the upper part of the convex part receiving side of the ring receiving part is partially reduced, and this low upper part is supported. The inner space portion of the ring housing portion Snap, characterized in that there was comb Semama in the vertical direction is provided in comparison with the ring-accepting part internal space other than between parts.

  In the snap button according to the present invention, a part of the ring storage part (including a plurality of parts) of the female snap is provided with a bottom upper part having a reduced height, and the vertical space between the inner part of the ring storage part corresponding to the lower part is provided. By narrowing, the movement of the ring-shaped elastic member is restricted at least in the narrow space portion. Based on this action, this snap button is female from a specific direction (described later) compared to a conventional snap button including a female snap with a ring-shaped elastic member in which the movement of the ring-shaped elastic member is not restricted at all in the inner space of the ring storage portion. -Male snaps are relatively easy to remove.

  As the material of the male snap and the female snap, metal or the like is preferably used.

  The ring-shaped elastic member is a member made of a non-metallic material such as a metal, resin, rubber or the like that can elastically expand and contract (restore) the inner diameter by engaging with the convex portion of the male snap. It can be formed as a mold ring, a continuous annular ring or the like.

  In the present invention, the portion where the lower upper portion is provided in the ring accommodating portion may not be in the entire 360 degree region of the ring accommodating portion, and therefore the height is necessarily generated in the upper portion of the ring accommodating portion. Preferably, the lower upper portion of the female snap is a portion that is grasped with a finger when the male snap and the female snap are disengaged in the fabric member to which the female snap or the male snap is fixed, of the entire circumference of the ring housing portion ( It is provided in the portion closest to the pulling point (the portion where the pulling force from the pulling point is directly applied via the fabric member). The pulling point is the center of the range when the parts to be grasped with a finger on the fabric member are concentrated in a range that is varying. In an application where a plurality of such areas where the parts to be grasped with fingers are concentrated are recognized, a plurality of low upper portions can be provided in the ring accommodating portion.

  In the crotch part of a female body suit, which is an example of the use of the snap button according to the present invention, when removing the snap button of the crotch part to remove the suit, The location (pull point) and the direction in which this location is pulled are almost constant. In this case, a low upper portion is provided in a portion of the entire circumference of the ring accommodating portion of the female snap that is closest to the pulling point, that is, a portion that lies on a straight line connecting the pulling point and the ring center, and corresponds to the low upper portion. The inner space portion (narrow space portion) of the ring accommodating portion is narrowed in the vertical direction. This makes it easier for the female snap to come off the male snap by pulling the fabric member to which the female snap is fixed in the predetermined pulling direction (see arrow A in FIG. 4) from the pulling point, and the lateral pulling resistance. It was confirmed by experiments that (the separation resistance against the lateral pulling force applied when using a suit) is comparable to that of a conventional snap button (see Tables 1 and 2).

  In the present invention, the space in the vertical direction of the inner space portion (narrow space portion) corresponding to the lower portion can be made equal to the thickness (cross-sectional diameter) of the ring-shaped elastic member. In this case, the ring-shaped elastic member cannot move at all in the vertical direction in the narrow space.

  In the present invention, the lower upper portion can press and fix the ring-shaped elastic member against the bottom of the ring housing portion. In this case, fixing the ring-shaped elastic member in the narrow space portion makes it difficult for the ring-shaped elastic member to move in the vertical direction even in the inner space of the ring accommodating portion other than the narrow space portion, particularly in the diametrically opposite side of the narrow space portion.

  According to another aspect of the present invention, a male snap having a convex portion and a female snap having a convex portion receiving portion for receiving the convex portion so as to be engaged and disengageable, the convex portion has a large diameter near the tip. And a small-diameter portion whose outer diameter is gradually reduced from the large-diameter portion, and the female snap is moved by the large-diameter portion of the convex portion when engaged with the convex-portion receiving portion of the male snap convex portion. After the inner diameter is elastically expanded and passed through the large diameter portion, the ring-shaped elastic member corresponding to the small diameter portion is reduced in the restoring direction and the ring-shaped elastic member is connected to the inner side facing the ring center. A method of processing a female snap in a snap button comprising a ring receiving portion that opens and accommodates a portion, wherein a die having a raised portion protruding downward is pressed against the female snap relative to the female snap. The raised portion of the ring receiving portion is received by the raised portion. A lower upper part is provided with the height of the upper part of the lower side partially lowered, and the inner space part of the ring accommodating part corresponding to the lower upper part is vertically compared with the inner part of the ring accommodating part other than the inner part corresponding to the lower upper part. There is provided a method for processing a female snap characterized by narrowing in a direction. The step of pressing the die can be performed on the female snap fixed to the fabric or the female snap not fixed on the fabric, and can also be performed when the female snap is attached to the fabric.

  According to still another aspect of the present invention, the male snap having a convex portion and the female snap having a convex portion receiving portion for receiving the convex portion so as to be engageable and disengageable are formed. The female snap has a large-diameter portion of the convex portion when engaged with the convex-portion receiving portion of the male snap convex portion. The inner diameter of the ring-shaped elastic member corresponding to the small-diameter portion is reduced in the restoring direction after the inner diameter is elastically expanded by the inner diameter of the ring-shaped elastic member, and the inner side of the ring-shaped elastic member is directed toward the center of the ring. When attaching a female snap in a snap button having a ring receiving portion that opens and stores a side portion to a fabric member, the female snap is held above the fabric member and held by a mounting die having a raised portion protruding downward at the bottom. Let the female snap below The female snap fixing member for fixing to the member is disposed on the fixing member support base, and then the mounting die is moved relatively toward the fixing member support base, so that the female snap and the female snap fixing member are moved to the fabric member. The female snap fixing member or a part of the female snap is passed through the fabric member, and then the female snap or the female snap fixing member is deformed and locked to fix the female snap to the fabric member. The raised portion is provided with a low upper portion in which the height of the convex portion receiving side upper portion of the ring accommodating portion is partially lowered, and the internal space portion of the ring accommodating portion corresponding to this low upper portion is other than the low upper corresponding internal space portion. There is provided a method for processing a female snap characterized by narrowing in the vertical direction as compared with the inner space of the ring accommodating portion. With this method, the female snap can be attached to the fabric member and at the same time, the lower portion can be provided in the ring accommodating portion.

  In the present invention, the lower upper portion of the female snap is grasped with a finger when the male snap and the female snap are disengaged in the fabric member to which the female snap or the male snap is fixed out of the entire circumference of the ring housing portion. It can be provided in the part closest to the location (pull point).

  In the snap button according to the present invention, a low upper portion having a low height is provided on a part of the ring accommodating portion of the female snap to which the coupling force and the separation resistance are increased by adding a ring-shaped elastic member to correspond to the low upper portion. The space part in the ring housing part is a narrow space part that is narrow in the vertical direction, and the lower upper part and the narrow space part are closest to the part that is pulled by a finger when removing the snap button on the fabric member to which the female snap or male snap is fixed. The snap button is easier to remove than the conventional snap by pulling from the above-mentioned location. On the other hand, the separation resistance against the lateral pulling force applied to the male snap and / or the female snap via the fabric member, that is, the snap coupling force in use is maintained at the same level as that of the conventional snap.

  In the method for processing a female snap according to the present invention, a female snap having the above-mentioned advantages can be easily formed, and further, the lower portion can be processed in the ring housing portion simultaneously with the attachment of the female snap to the cloth member. .

  Preferred embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are perspective views showing a pair of male snaps 1 and female snaps 2 constituting a snap button according to an embodiment of the present invention, respectively. FIG. 3 is a longitudinal sectional view showing an engagement state of the male snap 1 and the female snap 2 applied to the crotch joint of a female bodysuit (through a lower upper portion 23 and a narrow space portion s described later). . The male / female snaps 1 and 2 are made of metal, and the fabric pieces t and t ′ are formed by metal male snap fixing members 14 and female snap fixing members 26 (see FIG. 3 and the like) from the back side of the fabric pieces t and t ′, respectively. It is fixed on the top. The fabric pieces t and t 'extend forward and backward (left and right in FIG. 3) and are connected to the body suit body.

  The male snap 1 is the same as the conventional one, and has a convex portion 10 projecting concentrically from the base portion 13, and the outer diameter of the convex portion 10 is maximized near the tip to form a large diameter portion 11. The small diameter portion 12 is formed by gradually decreasing from the diameter portion 11 toward the proximal end side.

  The female snap 2 includes a metal C-shaped spring ring 21 with a part of the ring broken as a ring-shaped elastic member, a ring accommodating portion 22 for accommodating the spring ring 21, and a peripheral edge portion 24. The space (opening) on the inner side in the circumferential direction of the spring ring 21 and the ring accommodating portion 22 becomes a convex portion receiving portion 20 that receives the convex portion 11 of the male snap 1 so as to be engageable and disengageable. As shown in FIG. 3, the ring accommodating portion 22 has an upper portion 22 a, an outer side portion 22 b, and a bottom portion 22 c that are continuous from the receiving side of the convex portion 10 in a substantially semicircular longitudinal section, and is an inner side facing the center of the ring. The side is open. A part of the ring accommodating part 22 is formed with a low upper part 23 in which the height of the upper part 22a is lowered in a concave shape, and the internal space of the ring accommodating part 22 corresponding to the low upper part 23 is other than the part corresponding to the low upper part 23 The narrow space portion s is narrower in the vertical direction than the ring housing space. Further, in the narrow space portion s, the spring ring 21 is sandwiched between the lower upper portion 23 and the bottom portion 22c and is fixed by crimping here.

  The basic operation of the spring ring 21 is as follows. That is, when the convex portion 10 of the male snap 1 is engaged with the convex portion receiving portion 20 of the female snap 2, the spring ring 21 is expanded in inner diameter by the convex large-diameter portion 11 and passes through the large-diameter portion 11. Thereafter, the inner diameter is reduced in the restoring direction to hold the convex small diameter portion 12 (FIG. 3). When the convex portion 10 is disengaged from the convex portion receiving portion 20, the inner diameter of the spring ring 21 gradually increases from the convex small diameter portion 12 to the large diameter portion 11. The expansion / contraction deformation of the spring ring 21 at the time of attaching / detaching the convex portion does not occur in the narrow space portion s because the spring ring 21 is fixed by crimping between the low upper portion 23 and the bottom portion 22c in the narrow space portion s as described above. The amount of deformation of the ring 21 is greatest in a ring housing space other than the narrow space portion s, particularly in a space portion (hereinafter simply referred to as “opposite space portion”) s1 opposite to the narrow space portion s in the diameter direction.

  FIG. 4 shows a state in which the male / female snaps 1 and 2 at the crotch are being pulled in the direction of arrow A in order to remove the male / female snaps 1 and 2 at the crotch portion when the body suit is removed. It is a longitudinal cross-sectional view of the snaps 1 and 2. FIG. In the body suit of this example, when removing the male / female snaps 1 and 2 at the crotch, be sure to grasp the vicinity of the free end of the fabric piece t ′ with a finger in the A direction (the center of the spring ring 21 is the center). The portion that is pulled with a finger is referred to as a “pull point”, and the pulling force of the fabric piece t ′ is the entire circumference of the ring accommodating portion 22 of the female snap 2 and the spring ring 21. Directly acting on the portion corresponding to the lower upper portion 23 and the narrow space portion s closest to the pulling point, and the female snap 2 is slightly horizontal with respect to the horizontal (the fabric piece t on the male snap 1 side is horizontal). An attempt is made to remove downward from the male snap projection 10 while tilting. In other words, the body suit crotch part has a known pull point and pulling direction A when the male / female snaps 1 and 2 are removed, and when the female snap 2 is attached to the fabric piece t ′, As described above, the lower upper portion 23 and the narrow space portion s are set to be closest to the pulling point and come to a place where the pulling force acts directly.

  About the snap button which concerns on the said embodiment, and the conventional snap button (It is completely the same as this form snap button except the point which the low-upper part 23 and the narrow space part s are not provided in the ring accommodating part of the female snap.). The tensile load (N) at the time of disengagement between the male and female snaps by pulling the fabric piece in the direction A from the above pulling point was measured by randomly selecting 20 each of the present form snap and the conventional snap. The results are shown in Table 1.

  From Table 1, it can be seen that in the snap button of this embodiment, the female snap 2 is detached from the male snap 1 with a smaller pulling force from the direction A than in the conventional snap button. In the snap button of this embodiment, the movement of the spring ring 21 is restricted in the narrow space portion s of the female snap 2 and the spring ring 21 expands on the opposite space portion s1 side. This is considered to be caused by the spring ring moving freely within the section. In addition, it is thought that the disengagement operation | movement of this form snap is as follows.

  In the snap button according to the present embodiment, when the fabric piece t ′ is pulled in the direction A from the pulling point (near the free end of the fabric piece t ′) as shown in FIG. 4, this tensile force is transmitted through the fabric piece t ′. Thus, the entire length of the ring accommodating portion 22 is transmitted to the lower upper portion 23 portion closest to the pulling point, and the female snap 2 is pulled downward from this portion. It is going to come off from the convex part 10 of the snap 1. At this time, in this embodiment, the top (point C) of the peripheral edge 24 located on the diametrically opposite side of the lower upper portion 23 and positioned at the uppermost position in the female snap 2 is in contact with the base portion 13 of the male snap 1. It becomes the fulcrum of As described above, the spring ring 21 is fixed between the lower portion 23 and the ring accommodating portion bottom portion 22c in the narrow space portion s. Therefore, the spring ring 21 is not displaced radially outward on the narrow space portion s side. The convex part 10 is pulled down downward in the axial direction integrally with the side ring accommodating part 22, and in response to this, the spring ring 21 opens radially outward on the opposite space part s 1 side, and the female snap 2 is male. Remove from Snap 1.

  With respect to the snap button of the present embodiment and the conventional snap button, the lateral pulling load when the male snap and the female snap are disengaged by applying a lateral pulling force to the female snap through the cloth piece (direction B in FIG. 3). Table 2 shows the results of measuring N) by selecting 20 snaps.

  From Table 2, there is no difference in lateral pulling resistance between the snaps of the present embodiment and the conventional snaps. Therefore, the use of the body suit is achieved by providing the ring accommodating portion 22 of the female snap 2 with the low upper portion 23 and the narrow space portion s. It can be seen that sometimes the male / female snaps 1 and 2 are not easily separated.

  Next, as a method for processing the female snap according to the present invention, a process of fixing the female snap 2 to the fabric piece t 'will be described. FIG. 5 is a cross-sectional explanatory view showing a state immediately before the female snap (ring socket) 2 is fixed to the fabric piece t ′. In this state, the female snap 2 receives the convex portion 31 at the center of the bottom of the mounting die 30 above the fabric piece t ′ into the convex portion receiving portion 20, and the spring ring 21 holds the convex portion 31 and attaches it to the die 30. It has been. A female snap fixing member 26 is disposed on a support base 40 concentric with the die 30 below the fabric piece t ′. FIG. 6 is a plan view of the bottom portion of the die 30. At the bottom portion, there are portions 32 and 34 corresponding to the ring accommodating portion upper portion 22 a and the peripheral edge portion 24 of the female snap 2 on the outside of the convex portion 31, respectively. A raised portion 33 that protrudes downward is formed on a part of the entire circumference of the upper corresponding portion 32. Next, when the die 30 is lowered, as shown in FIG. 7, the caulking portion 27 of the female ring fixing member 26 penetrates the fabric t ′, and then enters the annular opening 25 at the bottom of the peripheral portion 24 of the female snap 2. After entering, it is crimped in the peripheral edge portion 24, whereby the female snap 2 is fixed on the fabric piece t '. At the same time, the raised portion 33 of the die 30 pushes down a part of the upper portion 22a of the ring accommodating portion 22 to form the lower upper portion 23 and the narrow space portion s. Further, the portion that forms the lower upper portion 23 and the narrow space portion s in the ring accommodating portion 22 is located at the position closest to the pulling point as described above when the fabric piece t ′ is finally attached to the body suit body. Set to come.

  In the above process, when the female snap 2 is fixed to the fabric piece t ′, the lower upper portion 23 is provided in the ring accommodating portion 22 of the female snap 2, but the fixing to the fabric piece t ′ and the formation of the lower upper portion 23 are performed. Can also be performed independently. For example, as shown in FIG. 8, a die 30 having a raised portion 33 as described above (for convenience, the above attachment die is attached to the female snap 2 already attached to the fabric piece t ′ by the female snap fixing member 26. The lower number 23 can be formed in the ring accommodating portion 22 of the female snap 2 by lowering the same number.

  Next, another embodiment of the snap button according to the present invention will be described. The female snap of this another form has a low upper portion (23) and a narrow space portion (s) substantially the same as the low upper portion 23 and the narrow space portion s in the ring accommodating portion 22 of the female snap 2 (the force is applied). 3 is the same as that of FIG. 3, the reference number of FIG. 3 is used in parentheses for the lower upper portion and the narrow space portion for convenience.) The lower upper portion (23) The spring ring 21 is different from the female snap 2 in that the lower ring (23) and the bottom 22c are merely in contact with or not in contact with the spring ring 21 without being crimped and fixed to the ring housing bottom 22c. Therefore, the vertical space between the narrow spaces (s) is equal to the thickness (cross-sectional diameter) of the spring ring 21.

  FIG. 9 shows yet another form of the female snap, wherein the female snap 2 ′ is not recessed in the lower upper portion 23 ′ of the ring receiving portion 22 ′, but in the portion between the two cuts 23 ″ (23 ') Is formed by pushing and bending downward.

  Although the crotch part of the body suit was cited as an application of the snap button according to the present invention, the present invention is not limited to this, and a relatively high coupling force and separation resistance are required between the male and female snaps. In addition, the present invention can be effectively applied to a case where the pulling point and pulling direction when the gap between the male and female snaps is removed are substantially determined. In addition, this snap button is relatively easy to remove from the pull points facing (near) the lower upper part and the narrow space part in the ring accommodating part of the female snap, and the pull points facing the ring accommodating part other than the lower upper part and the narrow space part. Therefore, it is possible to develop a new snap button application in which the disengagement force varies depending on the direction.

It is a perspective view which shows the male snap in the snap button which concerns on one Embodiment of this invention. It is a perspective view which shows the female snap in the snap button which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view which shows the engagement state of a male snap and a female snap and which passes along the low upper part and a narrow space part. FIG. 4 is a longitudinal sectional view similar to FIG. 3, showing a state in which the dough piece on the female snap side is starting to be pulled in the A direction in order to remove the snap button from the state of FIG. 3. It is a section explanatory view showing the state just before attaching a female snap to a cloth piece. It is a bottom view of an attachment die. It is sectional explanatory drawing which shows the state which attached the female snap to the fabric piece. It is sectional explanatory drawing which shows the state just before pressing die | dye with respect to the female snap attached to the fabric piece. It is a perspective view which shows another embodiment of a female snap.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Male snap 10 Convex part 11 Large diameter part 12 Small diameter part 2, 2 'Female snap 20 Convex part receiving part 21 Spring ring 22 Ring accommodating part 22a (Ring accommodating part) Upper part 22c (Ring accommodating part) Bottom part 23, 23 'Lower upper part s Narrow space part t, t' Dough piece 30 Mounting die 33 Raised part

Claims (5)

A male snap (1) having a convex portion (10), and a female snap (2, 2 ') having a convex portion receiving portion (20) for receiving the convex portion (10) so as to be engaged and disengageable, The convex portion (10) has a large-diameter portion (11) near the tip and a small-diameter portion (12) whose outer diameter is gradually reduced from the large-diameter portion (11), and the female snap (2 2 ′), when the male snap convex portion (10) is engaged with the convex portion receiving portion (20), the inner diameter is elastically expanded by the large diameter portion (11) of the convex portion (10). After passing the large-diameter portion (10), the ring-shaped elastic member (21) corresponding to the small-diameter portion (12) is reduced in the restoring direction and the ring-shaped elastic member (21) is directed toward the ring center. In a snap button provided with a ring accommodation part (22, 22 ') which opens and accommodates an inner side part,
A low upper part (23, 23 ') in which the height of the convex part receiving side upper part (22a) of the ring accommodating part (22, 22') is partially lowered is provided, corresponding to this lower upper part (23, 23 '). The inner space portion (s) of the ring accommodating portion (22, 22 ') is narrowed in the vertical direction as compared with the inner space portion of the ring accommodating portion other than the lower upper corresponding internal space portion (s), and the inner portion corresponding to the lower upper portion In the space portion (s), the ring-shaped elastic member (21) is sandwiched and fixed between the lower upper portion (23, 23 ') and the bottom portion (22c) of the ring accommodating portion (22, 22'). Snap button. The lower part (23, 23 ') of the female snap (2, 2') is the female snap (2, 2 ') or male snap (1) out of the entire circumference of the ring accommodating part (22, 22'). It fixed the fabric member (t, t ') in the female snap (2,2 male snap (1)' to claim 1 provided closest become part locations grip with the fingers when engaged Datsukakari a) Snap button described. The convex portion comprises a male snap (1) having a convex portion (10) and a female snap (2) having a convex portion receiving portion (20) for receiving the convex portion (10) so as to be engaged and disengageable. (10) has a large-diameter portion (11) near the tip and a small-diameter portion (12) whose outer diameter is gradually reduced from the large-diameter portion (11), and the female snap (2) is When the male snap convex portion (10) is engaged with the convex portion receiving portion (20), the large diameter portion (11) is elastically expanded by the large diameter portion (11) of the convex portion (10). The ring-shaped elastic member (21) corresponding to the small-diameter portion (12) is reduced in the restoring direction, and the ring-shaped elastic member (21) is opened at the inner side facing the ring center. And a method for processing a female snap (2) in a snap button provided with a ring receiving portion (22) Te,
By pressing the die (30) having a protruding portion (33) protruding downward at the bottom relative to the female snap (2), the protruding portion (33) of the die (30) causes the ring receiving portion (22) to A lower upper part (23) in which the height of the convex part receiving side upper part (22a) is partially lowered is provided, and the internal space part (s) of the ring accommodating part (22) corresponding to the lower upper part (23) is it rather Semama in the vertical direction compared to the low upper corresponding interior portion (s) other than the ring-accepting part internal space, low upper (23, 23 ') and the ring-accepting part in the low upper corresponding interior portion (s) ( 22. A method for processing a female snap, characterized in that a ring-shaped elastic member (21) is sandwiched between the bottom portions (22c) of 22 and 22 ′) and fixed . The convex portion comprises a male snap (1) having a convex portion (10) and a female snap (2) having a convex portion receiving portion (20) for receiving the convex portion (10) so as to be engaged and disengageable. (10) has a large-diameter portion (11) near the tip and a small-diameter portion (12) whose outer diameter is gradually reduced from the large-diameter portion (11), and the female snap (2) is When the male snap convex portion (10) is engaged with the convex portion receiving portion (20), the large diameter portion (11) is elastically expanded by the large diameter portion (11) of the convex portion (10). The ring-shaped elastic member (21) corresponding to the small-diameter portion (12) is reduced in the restoring direction, and the ring-shaped elastic member (21) is opened at the inner side facing the ring center. The female snap (2) in the snap button including the ring accommodating portion (22) for accommodating the fabric member (t ′ )
The female snap (2) is held above the fabric member (t ') by a mounting die (30) having a protruding portion (33) protruding downward, and the female snap (2) is below the fabric member. A female snap fixing member (26) for fixing to (t ′) is disposed on the fixing member support (40);
Next, the mounting die (30) is moved relatively toward the fixing member support (40), so that the female snap (2) and the female snap fixing member (26) are sandwiched with the dough member (t ′) interposed therebetween. The female snap fixing member (26) or a part (27) of the female snap (2) is passed through the dough member (t ′), and then the female snap (2) or the female snap fixing member (26) is deformed. The female snap (2) is fixed to the fabric member (t ′) by stopping and the height of the convex portion receiving side upper portion (22a) of the ring accommodating portion (22) by the raised portion (33) of the mounting die (30). A lower upper portion (23) in which the height is partially lowered is provided, and the internal space portion (s) of the ring accommodating portion (22) corresponding to the lower upper portion (23) is replaced with the inner space portion (s) other than the lower upper corresponding internal space portion (s). it rather Semama in the vertical direction compared to the ring-accepting part internal space, To crimped across the ring-like elastic member between the bottom of the low upper (23, 23 ') and the ring-accepting part (22, 22' in a low upper corresponding interior portion (s)) (22c) (21) A method of processing a female snap characterized by the above. The lower part (23, 23 ') in the female snap (2) is a dough member (t, t) to which the female snap (2) or the male snap (1) is fixed out of the entire circumference of the ring housing part (22). 5. The method for processing a female snap according to claim 3 or 4 , wherein the female snap (1) and the female snap (2) are provided at a portion closest to a position to be grasped with a finger when the male snap (1) and the female snap (2) are disengaged.

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