WO2013008340A1 - Snap button - Google Patents

Snap button Download PDF

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Publication number
WO2013008340A1
WO2013008340A1 PCT/JP2011/066138 JP2011066138W WO2013008340A1 WO 2013008340 A1 WO2013008340 A1 WO 2013008340A1 JP 2011066138 W JP2011066138 W JP 2011066138W WO 2013008340 A1 WO2013008340 A1 WO 2013008340A1
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WO
WIPO (PCT)
Prior art keywords
snap
female
male
side wall
peripheral side
Prior art date
Application number
PCT/JP2011/066138
Other languages
French (fr)
Japanese (ja)
Inventor
建二 長谷川
Original Assignee
Ykk株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ykk株式会社 filed Critical Ykk株式会社
Priority to JP2013523762A priority Critical patent/JP5959515B2/en
Priority to PCT/JP2011/066138 priority patent/WO2013008340A1/en
Priority to CN201180071766.3A priority patent/CN103607919B/en
Priority to TW101124775A priority patent/TWI465201B/en
Publication of WO2013008340A1 publication Critical patent/WO2013008340A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00—Press-button or snap fasteners
    • A44B17/0064—Details
    • A44B17/0088—Details made from sheet metal
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00—Press-button or snap fasteners
    • A44B17/0052—Press-button fasteners consisting of four parts

Definitions

  • the present invention relates to a snap button, and more particularly to a metal snap button that engages and disengages a pair of snap members.
  • Snap buttons that engage and disengage a pair of male snaps and female snaps are widely used in joints such as clothing and potatoes.
  • the male snap is provided with an engaging protrusion
  • the female snap is provided with a recess for attaching and detaching the engaging protrusion of the male snap.
  • the protrusion-side end of the engaging protrusion has a slightly enlarged outer diameter (hereinafter referred to as “expanded-diameter portion”), while the opening-side end of the recess has an inner diameter that is larger than the outer diameter of the enlarged-diameter portion of the engaging protrusion. Is also reduced to be slightly smaller (hereinafter referred to as “reduced diameter portion”).
  • the metal snap button Since the metal snap button has a smaller elastic deformation performance than that made of resin, the difference between the outer diameter of the enlarged diameter portion of the engagement protrusion and the inner diameter of the reduced diameter portion of the recess cannot be set large. Therefore, the detachment resistance is reduced, and the engagement protrusion of the male snap can be easily removed from the recess of the female snap.
  • a separate spring member is conventionally added to the concave portion of the female snap, and the enlarged diameter portion of the engaging projection of the male snap is elastically held by the spring member.
  • the female snap using the spring member is not only complicated to manufacture and causes an increase in cost, but also contradicts the recent demand for weight reduction of parts.
  • Japanese Utility Model Laid-Open No. 50-3704 discloses a plurality of slits in the annular portion that defines the concave portion and is divided in the circumferential direction.
  • a female snap is disclosed.
  • the female snap when a force (lateral pulling force) is applied to the female snap and the male snap through the fabric in the state of being coupled to the male snap, the female snap is split. Since the formed annular portion is easily deformed, the male snap and the female snap are easily separated from each other, and the annular portion of the female snap may be plastically deformed beyond an elastically deformable range.
  • the position of the male snap engagement protrusion needs to be adjusted to a certain degree with respect to the female snap recess, and the engaging operation of the female snap and the male snap is troublesome. It was. In addition, clothes or the like may be caught in the slit of the annular portion of the female snap, and the user's skin or the like may be damaged.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to improve the elastic deformation performance without using a separate spring member and meet the needs for weight reduction. It is to provide a snap button. Also, the object of the present invention is to provide a metal snap button that does not easily disengage from the lateral pulling force, is easy to engage, and does not catch clothes or damage the user's skin. It is to provide.
  • the snap button includes a first snap member and a second snap member that can be engaged and disengaged with the first snap member.
  • 1 snap member is formed from a plate made of a single metal (copper alloy, aluminum alloy, etc.), a disc-shaped first bottom, and a peripheral side wall that rises from the peripheral edge of the first bottom and is continuous in the circumferential direction; A plurality of first engaging portions in the circumferential direction, which are raised from the first bottom by incising the first bottom portion on the radially inner side from the peripheral side wall, and each first engaging portion is located on the upper end side thereof
  • the second snap member includes a circular second bottom portion and a second engagement portion that rises from the second bottom portion and that is continuous in the circumferential direction.
  • the part has an inner inflating part that swells radially inward at the upper end side.
  • a radially outer end of the outer expanding portion is positioned radially outward from a radially inner end of the inner expanding portion, and the second snap member
  • the second snap member in the following embodiment, “in the annular space between the peripheral wall of the first snap member (referred to as“ female snap ”in the following embodiment) and the first engaging portion”).
  • the first snap member and the second snap member are engaged and disengaged by taking in and out the second engaging portion (referred to as “male snap”). Since the first engaging portion is a plurality of portions discontinuous in the circumferential direction, the first engaging portion is easily bent in the radial direction as compared with the peripheral side wall and the second engaging portion that are continuous in the circumferential direction. Therefore, the first engaging portion and the second engaging portion can be easily attached and detached.
  • the first engaging portion When a lateral pulling force acts on the engaged first snap member and the second snap member, the first engaging portion can be elastically deformed because the peripheral side wall restricts the horizontal displacement of the second engaging portion in the annular space. It is possible to prevent a situation in which plastic deformation occurs beyond a certain range.
  • the peripheral side wall of the first snap member has a curved portion that curves radially inward on the upper end side thereof.
  • the curved portion of the peripheral side wall can play a role of guiding the second engaging portion of the second snap member to the annular space, and does not damage the user's skin or the like.
  • the upper end of the peripheral side wall of the first snap member is located above the upper end of the first engagement portion.
  • the second engaging portion of the second snap member is easily fitted between the peripheral side wall and the first engaging portion.
  • the first snap member includes, on a first bottom, an incision corresponding to each first engagement portion and a non-incision between two incisions adjacent in the circumferential direction.
  • Each rib is provided with a rib.
  • the radial dimension of the inner expansion portion of the second engagement portion of the second snap member is greater than the radial dimension of the outer expansion portion of the first engagement portion of the first snap member. Is also big. In this case, the first snap member and the second snap member can be smoothly engaged and disengaged, and the second engaging portion can be smoothly inserted into the annular space of the first snap member.
  • the plurality of first engaging portions in the circumferential direction which are raised by cutting the first bottom portion of the first snap member are a plurality of portions discontinuous in the circumferential direction, Compared to the peripheral side wall and the second engaging portion that are continuous with each other, the radial direction is easily bent. Therefore, the elastic deformation performance of the first engagement portion can be enhanced without using a separate button member, and the need for weight reduction can be met without incurring an increase in cost. Further, when a lateral pulling force acts on the engaged first snap member and second snap member, the peripheral engagement wall limits the horizontal displacement of the second engaging portion in the annular space, so the second engaging portion is annular. It is difficult to escape from the space, and it is possible to prevent a situation in which the first engaging portion is plastically deformed beyond the elastically deformable range.
  • the second engaging portion of the second snap member slides partially on the surface of the curved portion.
  • the annular space of the first snap member by making the upper end of the peripheral side wall of the first snap member higher than the upper end of the second engagement part, the second engagement part of the second snap member is fitted between the peripheral side wall and the first engagement part. This also facilitates guiding the second engagement portion of the second snap member to the annular space.
  • the curved portion of the peripheral side wall that curves inward in the radial direction does not damage clothes, skin, and the like.
  • FIG. 1 is a plan view showing a female snap that is a first snap member of a snap button according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG.
  • FIG. 3 is an enlarged fragmentary view of FIG.
  • FIG. 4 is a plan view showing a male snap which is a second snap member of the snap button according to the embodiment of the present invention.
  • 5 is a cross-sectional view taken along line BB in FIG.
  • FIG. 6 is a cross-sectional explanatory view showing a concentrically opposed arrangement state before the male snap and the female snap are combined.
  • FIG. 7 is an explanatory cross-sectional view showing a state in which a male snap and a female snap are combined.
  • FIG. 1 is a plan view showing a female snap that is a first snap member of a snap button according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG.
  • FIG. 8 is a cross-sectional explanatory view showing a state in which the male snap is about to engage with the female snap obliquely.
  • FIG. 9 is an explanatory partial cross-sectional view showing a state in which a lateral pulling force acts on the female snap and the male snap and the male engagement portion is horizontally displaced.
  • FIG. 10 is a plan view showing a modification of the female snap. 11 is a cross-sectional view taken along the line CC of FIG. 12 is a cross-sectional view taken along the line DD of FIG. It is a fracture
  • FIG. 14 is a plan view showing a modification of the male snap member (second snap member).
  • FIG. 15 is a cross-sectional explanatory diagram of the male snap member of FIG. 14 attached to the fabric.
  • FIG. 1 is a plan view of a female snap 10 that is a first snap member constituting a snap button according to an embodiment of the present invention.
  • 2 is a cross-sectional view taken along line AA in FIG.
  • the female snap 10 is formed by drawing or the like from a single metal plate.
  • the female snap 10 rises from a disk-shaped bottom portion 11 and a peripheral edge of the bottom portion 11 and is circumferentially (circumferential to the axis of the female snap 10).
  • the annular peripheral side wall 12 that is continuous in the direction), and five from the bottom 11 in the radial direction (radial direction with respect to the female snap 10) inside the peripheral side wall 12 are provided as an example at equal angular intervals in the circumferential direction.
  • Female-side engaging portion 13 At the center of the bottom portion 11, a circular hole portion 14 is provided for receiving the post portion 32 (see FIG. 6 and the like) of the attachment member 30 when the female snap 10 is attached to the fabric 1 (see FIG. 6 and the like). Further, in the region between the peripheral side wall 12 and the female side engaging portion 13 (hereinafter referred to as “bottom outer region”) 11 a in the bottom portion 11, the bottom portion 11 is cut in order to form each female side engaging portion 13.
  • a fan-shaped non-incision portion 11c remains between the two incisions 15 adjacent in the circumferential direction in the bottom outer region 11a.
  • Each non-incision portion 11c connects a region (hereinafter referred to as a “bottom portion central region”) 11b radially inward of the female side engagement portion 13 in the bottom portion 11 and the peripheral side wall 12 (the lower end thereof).
  • the bottom central basin 11b protrudes slightly below the bottom outer region 11a (the vertical direction of the female snap 10 is based on FIG. 2), and the radially outer end of the bottom central basin 11b is upward and toward the bottom outer region 11a. Connect to the outside in the radial direction with a slight inclination.
  • the peripheral side wall 12 extends linearly (non-curved) from the lower end, that is, the boundary with the bottom 11 upward while being slightly inclined radially outward, and then radially inward at the upper end side of the peripheral side wall 12. Curved in a C shape (hereinafter, this curved portion is referred to as “curved portion 12a”).
  • Reference number 12b is the top end (upper end) of the peripheral side wall 12, and reference number 12c indicates the radially inner end of the curved portion 12a.
  • the female side engaging portion 13 includes an engaging base portion 13 a extending from the bottom portion 11 (radially outer end of the bottom central region 11 b) upward and parallel to the axis of the female snap 10. And an outer expansion portion 13b that bulges outward in the radial direction upward from the upper end of the engagement base portion 13a, and then is folded back in a C shape radially inward to form an upper portion of the female side engagement portion 13. .
  • the outer inflating portion 13 b includes a top end (upper end) 13 c of the female side engaging portion 13.
  • Reference numeral 13d indicates the radially outer end of the outer expanding portion 13b.
  • the position of the top end 13 c of the female side engaging portion 13 is designed to be slightly lower than the position of the top end 12 b of the peripheral side wall 12.
  • the female side engaging portion 13 provided discontinuously in the circumferential direction is more easily bent inward and outward in the radial direction than the peripheral side wall 12 continuous in the circumferential direction.
  • the female snap 10 has an annular space 16 that opens upward on the bottom outer region 11 a between the peripheral side wall 12 and the male engaging portion 22, and the male snap engagement of the male snap 20 is present in the annular space 16.
  • the joint portion 22 (see FIG. 4 and the like) is taken in and out, and the male snap 20 is attached and detached.
  • FIG. 4 is a plan view of the male snap 20 which is the second snap member constituting the snap button according to the embodiment of the present invention.
  • 5 is a cross-sectional view taken along line BB in FIG.
  • the male snap 20 is formed by drawing or the like from a single metal plate, and has a substantially disc-shaped bottom portion 21 and a circumferentially continuous circle rising from the periphery of the bottom portion 21. And an annular male side engagement portion 22.
  • a circular hole portion 23 is provided for receiving the post portion 42 (see FIG. 6 and the like) of the attachment member 40 when the male snap 20 is attached to the fabric 2 (see FIG. 6 and the like).
  • the bottom portion 21 includes a bottom center portion 21a around the hole portion 23 along the horizontal direction (referring to an arbitrary surface perpendicular to the axis of the male snap 20), and slightly above the bottom portion center portion 21a (the vertical direction of the male snap 20). 5 based on FIG. 5), a bottom outer end 21b extending horizontally inward in the radial direction from the lower end of the male engagement portion 22, a bottom central portion 21a (radially outer end thereof), and a bottom outer end 21b ( A bottom inclined portion 21c that is connected to the former from the former to the latter in an upwardly and radially outward direction.
  • the male side engaging portion 22 extends linearly (non-curved) while slightly inclining radially outward from the lower end, ie, the boundary with the bottom portion 21 (bottom outer end portion 21b). And an inner inflatable portion 22b that curves in a C shape from the upper end of the engagement base portion 22a inward in the radial direction and bulges inward in the radial direction.
  • the inner inflatable portion 22 b includes a top end (upper end) 22 c of the male side engaging portion 22.
  • Reference numeral 22d indicates a radially inner end of the inner inflatable portion 22b
  • reference numeral 22e indicates a radially outer end (the male engaging portion 22 of the male engaging portion 22 that protrudes most outward in the radial direction in the male engaging portion 22). (It coincides with the boundary between the engagement base portion 22a and the inner expansion portion 22b on the surface facing radially outward).
  • FIG. 6 shows a state in which the female snap 10 and the male snap 20 described above are attached to the fabrics 1 and 2 by the attachment members 30 and 40, respectively, with the female snap 10 and the male snap 20 before being connected concentrically facing each other.
  • the attachment member 30 for the female snap 10 is a well-known component and will not be described in detail, but includes a substantially disk-shaped base portion 31 and a post portion 32 protruding from the base portion 31. The post portion 32 is shown in a deformed state by crimping in FIG.
  • the attachment member 40 for the male snap 20 is also a well-known component, and includes a substantially disc-shaped base portion 41 and a post portion 42 (shown in a deformed state in FIG. 6 and the like) protruding from the base portion 41.
  • the male snap 20 is attached to the cloth 2 in the same manner as the above-described attachment of the female snap 10 to the cloth 1 by passing the post portion 42 of the attachment member 40 that passes through the cloth 2 and then passes through the hole 23 of the male snap 20. This is done by caulking.
  • the radially outer end 13 d of the outer expansion portion 13 b of the female engagement portion 13 is the inner expansion portion 22 b of the male engagement portion 22.
  • the radially outer end 22d is slightly outside the radially inner end 22d, and the radially outer end 13d is radially inside the radially outer end 22e.
  • the radially inner end 22d of the inner inflatable portion 22b is at substantially the same radial position as the radially outer surface of the engagement base portion 13a of the female engagement portion 13.
  • the radially outer end 22 e of the male side engaging portion 22 is slightly inside the radially inner end 12 c of the curved portion 12 a of the peripheral side wall 12 of the female snap 10.
  • the radial dimension (the dimension between the radially inner end 22d and the radially outer end 22e) of the inner expansion portion 22b of the male engagement portion 22 of the male snap 20 is the female engagement of the female snap 10. It is larger than the dimension in the radial direction of the outer expansion part 13b of the part 13 (the dimension between the radial outer end 13d of the outer expansion part 13b and the radial inner end 13e of the outer expansion part 13b). Therefore, the female snap 10 and the male snap 20 can be smoothly engaged and disengaged, and the male side engaging portion 22 has an annular space 16 between the peripheral side wall 12 and the female side engaging portion 13 of the female snap 10. It can be inserted smoothly.
  • FIG. 7 is an explanatory cross-sectional view showing a state where the female snap 10 and the male snap 20 are engaged (hereinafter also referred to as “snap engagement state”).
  • the male side engaging portion 22 of the male snap 20 is inserted into the annular space 16 of the female snap 10 (here, the insertion direction is downward), first, the inner expansion portion 22b of the male side engaging portion 22 is the female side engaging portion.
  • the female-side engaging portions 13 are bent inward in the radial direction in contact with the outer expanding portions 13b of the joint portions 13.
  • the female side engaging part 13 which is discontinuous in the circumferential direction is more easily bent inward and outward in the radial direction than the male side engaging part 22 which is continuous in the circumferential direction.
  • the height from the bottom 11 of the peripheral side wall 12 of the female snap 10 is higher than the height from the bottom 21 of the male side engaging portion 22 of the male snap 20, and as shown in FIG.
  • the male side engaging portion 22 is accommodated in the female snap 10.
  • the peripheral side wall 12 has a larger diameter than the male side engaging portion 22 of the male snap 20, and the curved portion 12a of the peripheral side wall 12 is curved radially inward.
  • FIG. 8 shows a state in which the male snap 20 is engaged with the female snap 10 obliquely (non-concentrically). Engagement of the male snap 20 and the female snap 10 attached to clothes etc. is normally performed diagonally as shown in FIG.
  • the entire male side engaging portion 22 of the male snap 20 simply contacts the curved portion 12a of the peripheral side wall 12 of the female snap 10, the entire male side engaging portion 22 slides on the surface of the curved portion 12a. In this way, it is guided to the annular space 16 (guide function). Furthermore, since the height of the female side engaging portion 13 (the position of the top end 13c) is set slightly lower than the height of the peripheral side wall 12 (the position of the top end 12b), a part of the male side engaging portion 22 is formed. It is easy to fit between the curved portion 12a of the peripheral side wall 12 and the outer expanded portion 13b of the female side engaging portion 13 lower than this, and this also promotes the above-mentioned guide function.
  • the engagement operation of the female snap 10 and the male snap 20 can be performed easily and smoothly without requiring accurate positioning. Furthermore, since the curved portion 12a of the snap peripheral side wall 12 of the female snap 10 and the outer expanded portion 13b of the female side engaging portion 13 and the inner expanded portion 22b of the male snap 20 are curved, clothes or the like may be caught. It will not hurt the user's skin.
  • the restriction on the horizontal displacement of the male side engaging portion 22 by the peripheral side wall 12 is within a range in which the female side engaging portion 13 can be elastically deformed. Therefore, the male engagement portion 13 is not plastically deformed. Further, on the substantially opposite side in the diametrical direction (not shown), the male side engaging portion 22 presses the female side engaging portion 13, and the former inner inflated portion 22 b and the latter outer inflated portion 13 b are hooked to each other, and the detachment resistance. It becomes. Therefore, even if the lateral pulling force works, the male snap 20 does not easily detach from the female snap 10.
  • FIG. 10 is a plan view showing a modification of the female snap
  • FIG. 11 is a cross-sectional view taken along the line CC in FIG.
  • the female snap 50 is formed by drawing or the like from a single metal plate, and has a disk-shaped bottom 51 and an annular peripheral wall that rises from the periphery of the bottom 51 and continues in the circumferential direction. 52 and six female-side engaging portions 53 that rise from the bottom 41 on the radially inner side of the peripheral side wall 52 and are provided as an example at equal angular intervals in the circumferential direction.
  • each female side engaging portion 53 in the circumferential direction is larger than the circumferential range of each female side engaging portion 13 of the female snap 10.
  • the interval between two female side engaging portions 53 adjacent in the direction is narrow like a slit.
  • a circular hole 54 is provided at the center of the bottom 51.
  • the peripheral side wall 52 is substantially the same as the peripheral side wall 12 of the female snap 10, and has a curved portion 52a. Further, the vertical cross-sectional shape of the female side engaging portion 53 including the outer inflating portion 53 b is substantially the same as the female side engaging portion 13 of the female snap 10.
  • a fan-shaped incision portion 55 in which the bottom portion 51 is cut in order to form each female side engaging portion 53 is circumferential.
  • Six are provided.
  • the circumferential range of each incision 55 is also larger than the circumferential range of each incision 15 of the female snap 10 shown in a plan view in FIG. Therefore, the circumferential range of the non-incision portion 51c remaining between the two incisions 55 adjacent in the circumferential direction in the bottom outer region 51a is considerably narrower than the non-incision portion 11c of the female snap 10. Therefore, in the female snap 50, the strength of the bottom 51 may be insufficient.
  • each rib 57 is provided so as to extend along the radial direction at the center in the circumferential direction of each non-incision portion 51c.
  • the radially outer end of each rib 57 is close to the peripheral side wall 52, and the radially inner end is the bottom center region. Enter 51b.
  • the female snaps 10 and 50 described above are examples in which the height of the female side engaging portions 13 and 53 is lower than the height of the peripheral side walls 12 and 52. As shown in an enlarged view in FIG.
  • the height of the engaging portion 13f may be the same height as the peripheral side wall 12 (for convenience, the same reference numerals as those of the peripheral side wall 12 of the female snap 10 are used).
  • the male snap 60 is formed of a single metal plate, is a substantially disc-shaped bottom portion 61 that extends horizontally, and rises from the bottom portion 61, and is an annular, male-side engaging portion 62 having a double plate structure that is continuous in the circumferential direction. With. In the center of the bottom portion 61, a circular hole 63 is provided for receiving the post portion 42a protruding from the base portion 41a of the attachment member 40a when the male snap 60 is attached to the fabric 2a.
  • the bottom portion 61 is divided into a bottom center portion 61 a radially inward from the male side engaging portion 62 and a bottom outer end portion 61 b radially outward from the male side engaging portion 62.
  • the male engagement portion 62 extends substantially vertically upward from the radial outer end of the bottom central portion 61a, and then swells radially inward to form an inner expansion portion 62b, and a bottom outer end.
  • a radially outer plate 62c extending substantially vertically upward from the radially inner end of the portion 61b.
  • the radially inner plate 62a and the radially outer plate 62c are connected at the upper end of the male engagement portion 62. To do.
  • the male snap 60 can be engaged and disengaged with the female snap 10 in the same manner as the male snap 20 described above.
  • the radially inner end 62 d of the inner expanding portion 62 b of the male snap 60 is slightly inside the radial inner end 12 c of the curved portion 12 a of the peripheral side wall 12 of the female snap 10.
  • the radial dimension (the dimension along the horizontal between the radially inner end 62d and the outer surface of the radially outer plate 62c) of the inner expansion portion 62b of the male engagement portion 62 of the male snap 60 is a female dimension. It is larger than the dimension in the radial direction of the outer expanding portion 13b of the female side engaging portion 13 of the snap 10.
  • the female snaps 10 and 50 can be formed from a single metal plate without using a separate spring member, the weight can be reduced.
  • the above embodiment is merely an example, and changes and the like can be made within the scope of the claims and the equivalents thereof.

Abstract

The purpose of the present invention is to provide a metal snap button that is not readily separated even when the male snap and female snap are subjected to horizontal pulling force, and that can satisfy the need for light weight. The present invention relates to a snap button comprising a female snap (10) and a male snap (20). The female snap (10) is formed from a single sheet of metal, and is provided with a disc-shaped bottom part (11), a circumferential wall (12) continuous in the circumferential direction and erected from the circumferential edge of the bottom part (11), and a plurality of female-side engaging parts (13) in the circumferential direction formed by cutting and erecting the bottom part (11) at points further inward in the radial direction than the circumferential wall (12). The male snap (20) is provided with a circular bottom part (21) and a male-side engaging part (22) continuous in the circumferential direction and erected from the bottom part (21). The female snap (10) and the male snap (20) are engaged by inserting the male-side engaging part (22) of the male snap (20) into an annular space (16) between the female-side engaging parts (13) and the circumferential wall (12) of the female snap (10).

Description

スナップボタンSnap button
　本発明はスナップボタンに関し、特に、一対のスナップ部材を係合及び脱係合させる金属製のスナップボタンに関する。 The present invention relates to a snap button, and more particularly to a metal snap button that engages and disengages a pair of snap members.
　一対の雄スナップと雌スナップを係合及び脱係合させるスナップボタンは、衣類、鞄類等の合わせ目に広く使用されている。雄スナップは係合突起を備え、雌スナップには、雄スナップの係合突起を着脱させる凹部が設けられる。係合突起の突出側端部は外径が若干拡大され（以下「拡径部」という。）、他方、凹部の開放側端部は、内径が、係合突起の拡径部の外径よりもわずかに小さくなるように縮小される（以下「縮径部」という。）。雄スナップと雌スナップを係合させる場合、雄スナップの係合突起の拡径部が雌スナップの凹部の縮径部を乗り越える時に、係合突起の拡径部及び／又は凹部の縮径部が一時的に半径方向に弾性変形し、拡径部が縮径部を乗り越えると、拡径部及び／又は縮径部が復元し、雄スナップと雌スナップの結合が完了する。雌スナップと雌スナップの係合状態において、これが離脱抵抗となって、雄スナップと雌スナップの安易な離脱が防止される。 Snap buttons that engage and disengage a pair of male snaps and female snaps are widely used in joints such as clothing and potatoes. The male snap is provided with an engaging protrusion, and the female snap is provided with a recess for attaching and detaching the engaging protrusion of the male snap. The protrusion-side end of the engaging protrusion has a slightly enlarged outer diameter (hereinafter referred to as “expanded-diameter portion”), while the opening-side end of the recess has an inner diameter that is larger than the outer diameter of the enlarged-diameter portion of the engaging protrusion. Is also reduced to be slightly smaller (hereinafter referred to as “reduced diameter portion”). When engaging the male snap and the female snap, when the enlarged diameter portion of the engaging projection of the male snap rides over the reduced diameter portion of the recessed portion of the female snap, the enlarged diameter portion of the engaging projection and / or the reduced diameter portion of the recessed portion When it is temporarily elastically deformed in the radial direction and the enlarged diameter part gets over the reduced diameter part, the enlarged diameter part and / or the reduced diameter part is restored, and the coupling of the male snap and the female snap is completed. In the engaged state of the female snap and the female snap, this becomes a separation resistance, and easy separation of the male snap and the female snap is prevented.
　金属製のスナップボタンでは、樹脂製のものに比べ弾性変形性能が小さいため、上述した係合突起の拡径部の外径と凹部の縮径部の内径との差を大きく設定できない。そのため、上記離脱抵抗が小さくなって、雄スナップの係合突起が雌スナップの凹部から抜け易くなり得る。これを補うため、従来から、雌スナップの凹部に別個のバネ部材が付加され、雄スナップの係合突起の拡径部をバネ部材により弾性的に保持している。しかしながら、バネ部材を使用する雌スナップでは、製造が複雑でコストアップを招くのみならず、近年求められている部品の軽量化のニーズにも反する。 Since the metal snap button has a smaller elastic deformation performance than that made of resin, the difference between the outer diameter of the enlarged diameter portion of the engagement protrusion and the inner diameter of the reduced diameter portion of the recess cannot be set large. Therefore, the detachment resistance is reduced, and the engagement protrusion of the male snap can be easily removed from the recess of the female snap. In order to compensate for this, a separate spring member is conventionally added to the concave portion of the female snap, and the enlarged diameter portion of the engaging projection of the male snap is elastically held by the spring member. However, the female snap using the spring member is not only complicated to manufacture and causes an increase in cost, but also contradicts the recent demand for weight reduction of parts.
　バネ部材を用いずに金属製の雌スナップの凹部の弾性変形性能を高める技術として、実開昭５０－３７０４号公報には、凹部を規定する環状部に複数のスリットを入れて周方向に分割して成る雌スナップが開示される。しかしながら、そのような雌スナップでは、雄スナップと結合した状態で、雌スナップと雄スナップに生地を介して両者を水平方向逆向きに引っ張る力（横引き力）が作用した場合、雌スナップの分割された環状部が変形し易いため、雄スナップと雌スナップが離脱し易く、また、雌スナップの環状部が弾性変形可能な範囲を超えて塑性変形するおそれもある。また、雌スナップに雄スナップを係合させる際に、雌スナップの凹部に対し雄スナップの係合突起の位置をある程度正確に合わせる必要があり、雌スナップと雄スナップの係合操作が面倒であった。更に、雌スナップの環状部のスリットに衣服等が引っ掛かったり、使用者の皮膚等が傷付けられるおそれがある。 As a technique for improving the elastic deformation performance of the concave portion of the metal female snap without using a spring member, Japanese Utility Model Laid-Open No. 50-3704 discloses a plurality of slits in the annular portion that defines the concave portion and is divided in the circumferential direction. A female snap is disclosed. However, in such a female snap, when a force (lateral pulling force) is applied to the female snap and the male snap through the fabric in the state of being coupled to the male snap, the female snap is split. Since the formed annular portion is easily deformed, the male snap and the female snap are easily separated from each other, and the annular portion of the female snap may be plastically deformed beyond an elastically deformable range. Further, when the male snap is engaged with the female snap, the position of the male snap engagement protrusion needs to be adjusted to a certain degree with respect to the female snap recess, and the engaging operation of the female snap and the male snap is troublesome. It was. In addition, clothes or the like may be caught in the slit of the annular portion of the female snap, and the user's skin or the like may be damaged.
実開昭５０－３７０４号公報Japanese Utility Model Publication No. 50-3704
　本発明は、以上のような問題点に鑑みてなされたものであり、その目的は、別個のバネ部材を用いることなく弾性変形性能を高めることができ、軽量化のニーズに応えることができる金属製のスナップボタンを提供することにある。また、本発明の目的は、横引き力に対し容易には離脱せず、係合操作が容易で、衣服等が引っ掛かったり、使用者の皮膚等が傷付けられことのない金属製のスナップボタンを提供することにある。 The present invention has been made in view of the above-described problems, and an object of the present invention is to improve the elastic deformation performance without using a separate spring member and meet the needs for weight reduction. It is to provide a snap button. Also, the object of the present invention is to provide a metal snap button that does not easily disengage from the lateral pulling force, is easy to engage, and does not catch clothes or damage the user's skin. It is to provide.
　上記課題を解決するため、本発明に係るスナップボタンによれば、第１スナップ部材と、第１スナップ部材と係合及び脱係合可能な第２スナップ部材とからなるスナップボタンであって、第１スナップ部材は、一枚の金属（銅合金、アルミニウム合金等）製の板から形成され、円板状の第１底部と、第１底部の周縁から立ち上がる、周方向に連続する周側壁と、周側壁よりも半径方向内側において、第１底部を切開して第１底部から立ち上げた、周方向に複数の第１係合部とを含み、各第１係合部は、その上端側に、半径方向外側に膨らむ外側膨張部を有し、第２スナップ部材は、円形の第２底部と、第２底部から立ち上がる、周方向に連続する第２係合部とを含み、第２係合部は、その上端側に、半径方向内側に膨らむ内側膨張部を有し、第１スナップ部材及び第２スナップ部材が同心状にある際、前記外側膨張部の半径方向外側端は、前記内側膨張部の半径方向内側端よりも半径方向外側に位置し、第２スナップ部材の第２係合部を第１スナップ部材の周側壁の内側と第１係合部の外側との間で、周側壁に沿って形成される環状空間に挿入することにより、第１スナップ部材と第２スナップ部材が係合するスナップボタンが提供される。 In order to solve the above problems, according to the snap button of the present invention, the snap button includes a first snap member and a second snap member that can be engaged and disengaged with the first snap member. 1 snap member is formed from a plate made of a single metal (copper alloy, aluminum alloy, etc.), a disc-shaped first bottom, and a peripheral side wall that rises from the peripheral edge of the first bottom and is continuous in the circumferential direction; A plurality of first engaging portions in the circumferential direction, which are raised from the first bottom by incising the first bottom portion on the radially inner side from the peripheral side wall, and each first engaging portion is located on the upper end side thereof The second snap member includes a circular second bottom portion and a second engagement portion that rises from the second bottom portion and that is continuous in the circumferential direction. The part has an inner inflating part that swells radially inward at the upper end side. When the first snap member and the second snap member are concentric, a radially outer end of the outer expanding portion is positioned radially outward from a radially inner end of the inner expanding portion, and the second snap member By inserting the second engaging portion into the annular space formed along the peripheral side wall between the inside of the peripheral side wall of the first snap member and the outside of the first engaging portion, the first snap member and the first snap member A snap button is provided that engages the two snap members.
　本発明では、第１スナップ部材（下記の実施形態において「雌スナップ」と称される）の周側壁と第１係合部との間の環状空間に第２スナップ部材（下記の実施形態において「雄スナップ」と称される）の第２係合部を出し入れすることにより、第１スナップ部材と第２スナップ部材の係合及び脱係合が行われる。第１係合部は、周方向に不連続の複数の部分であるため、周方向に連続する周側壁及び第２係合部に比べ、半径方向に撓み易い。そのため、第１係合部と第２係合部の着脱が容易である。係合状態の第１スナップ部材と第２スナップ部材に横引き力が作用した場合、環状空間における第２係合部の水平変位を周側壁が制限するため、第１係合部が弾性変形可能な範囲を超えて塑性変形するような事態を防ぐことができる。 In the present invention, the second snap member (in the following embodiment, “in the annular space between the peripheral wall of the first snap member (referred to as“ female snap ”in the following embodiment) and the first engaging portion”). The first snap member and the second snap member are engaged and disengaged by taking in and out the second engaging portion (referred to as “male snap”). Since the first engaging portion is a plurality of portions discontinuous in the circumferential direction, the first engaging portion is easily bent in the radial direction as compared with the peripheral side wall and the second engaging portion that are continuous in the circumferential direction. Therefore, the first engaging portion and the second engaging portion can be easily attached and detached. When a lateral pulling force acts on the engaged first snap member and the second snap member, the first engaging portion can be elastically deformed because the peripheral side wall restricts the horizontal displacement of the second engaging portion in the annular space. It is possible to prevent a situation in which plastic deformation occurs beyond a certain range.
　本発明の一実施形態において、前記第１スナップ部材の周側壁は、その上端側に、半径方向内側に湾曲する湾曲部を有する。周側壁の湾曲部は、第２スナップ部材の第２係合部を環状空間に案内する役割を果たすことができ、また、使用者の皮膚等を傷付けることもない。 In one embodiment of the present invention, the peripheral side wall of the first snap member has a curved portion that curves radially inward on the upper end side thereof. The curved portion of the peripheral side wall can play a role of guiding the second engaging portion of the second snap member to the annular space, and does not damage the user's skin or the like.
　本発明の一実施形態において、前記第１スナップ部材の周側壁の上端は第１係合部の上端よりも上方に位置する。この場合、第２スナップ部材の第２係合部が周側壁と第１係合部との間に嵌り易くなる。 In one embodiment of the present invention, the upper end of the peripheral side wall of the first snap member is located above the upper end of the first engagement portion. In this case, the second engaging portion of the second snap member is easily fitted between the peripheral side wall and the first engaging portion.
　本発明の一実施形態において、前記第１スナップ部材は、第１底部に、各第１係合部に対応する切開部と、周方向に隣り合う二つの切開部間の非切開部とを含み、各非切開部にリブを設けている。このように非切開部にリブを設けることにより、切開部によって強度が低下した第１スナップの部材の第１底部を補強することができる。 In one embodiment of the present invention, the first snap member includes, on a first bottom, an incision corresponding to each first engagement portion and a non-incision between two incisions adjacent in the circumferential direction. Each rib is provided with a rib. Thus, by providing a rib in a non-incision part, the 1st bottom part of the member of the 1st snap which the intensity | strength fell by the incision part can be reinforced.
　本発明の一実施形態において、前記第２スナップ部材の第２係合部の内側膨張部における半径方向の寸法は、第１スナップ部材の第１係合部の外側膨張部における半径方向の寸法よりも大きい。この場合、第１スナップ部材と第２スナップ部材間の係合、脱係合が円滑に行えるとともに、第２係合部が第１スナップ部材の環状空間内に円滑に挿入できる。 In one embodiment of the present invention, the radial dimension of the inner expansion portion of the second engagement portion of the second snap member is greater than the radial dimension of the outer expansion portion of the first engagement portion of the first snap member. Is also big. In this case, the first snap member and the second snap member can be smoothly engaged and disengaged, and the second engaging portion can be smoothly inserted into the annular space of the first snap member.
　本発明に係るスナップボタンでは、第１スナップ部材の第１底部を切開して立ち上げた周方向に複数の第１係合部が、周方向に不連続の複数の部分であるため、周方向に連続する周側壁及び第２係合部に比べ、半径方向に撓み易い。そのため、別個のボタン部材を使用することなく、第１係合部の弾性変形性能を高めることができ、コストアップを招くことなく軽量化のニーズに応えることができる。また、係合状態の第１スナップ部材と第２スナップ部材に横引き力が作用した場合、環状空間における第２係合部の水平変位を周側壁が制限するため、第２係合部が環状空間から抜け難く、また、第１係合部が弾性変形可能な範囲を超えて塑性変形するような事態を防ぐことができる。 In the snap button according to the present invention, since the plurality of first engaging portions in the circumferential direction which are raised by cutting the first bottom portion of the first snap member are a plurality of portions discontinuous in the circumferential direction, Compared to the peripheral side wall and the second engaging portion that are continuous with each other, the radial direction is easily bent. Therefore, the elastic deformation performance of the first engagement portion can be enhanced without using a separate button member, and the need for weight reduction can be met without incurring an increase in cost. Further, when a lateral pulling force acts on the engaged first snap member and second snap member, the peripheral engagement wall limits the horizontal displacement of the second engaging portion in the annular space, so the second engaging portion is annular. It is difficult to escape from the space, and it is possible to prevent a situation in which the first engaging portion is plastically deformed beyond the elastically deformable range.
　また、第１スナップ部材の周側壁の上端側に半径方向内側に湾曲する湾曲部を設けることにより、第２スナップ部材の第２係合部が周側部の一部が湾曲部の表面を滑って第１スナップ部材の環状空間に案内され易くなる。更に、第１スナップ部材の周側壁の上端を第２係合部の上端よりも高くすることにより、第２スナップ部材の第２係合部が周側壁と第１係合部との間に嵌り易くなり、これによっても第２スナップ部材の第２係合部の環状空間への案内が助長される。更に、周側壁の、半径方向内側に湾曲する湾曲部は、衣服、皮膚等を傷付けることはない。 In addition, by providing a curved portion that curves inward in the radial direction on the upper end side of the peripheral side wall of the first snap member, the second engaging portion of the second snap member slides partially on the surface of the curved portion. Thus, it becomes easy to be guided to the annular space of the first snap member. Furthermore, by making the upper end of the peripheral side wall of the first snap member higher than the upper end of the second engagement part, the second engagement part of the second snap member is fitted between the peripheral side wall and the first engagement part. This also facilitates guiding the second engagement portion of the second snap member to the annular space. Further, the curved portion of the peripheral side wall that curves inward in the radial direction does not damage clothes, skin, and the like.
図１は、本発明の一実施形態に係るスナップボタンの第１スナップ部材である雌スナップを示す平面図である。FIG. 1 is a plan view showing a female snap that is a first snap member of a snap button according to an embodiment of the present invention. 図２は、図１のＡ－Ａ線矢視断面図である。FIG. 2 is a cross-sectional view taken along line AA in FIG. 図３は、図２の破断部分拡大図である。FIG. 3 is an enlarged fragmentary view of FIG. 図４は、本発明の一実施形態に係るスナップボタンの第２スナップ部材である雄スナップを示す平面図である。FIG. 4 is a plan view showing a male snap which is a second snap member of the snap button according to the embodiment of the present invention. 図５は、図４のＢ－Ｂ線矢視断面図である。5 is a cross-sectional view taken along line BB in FIG. 図６は、雄スナップと雌スナップの結合前の同心対向配置状態を示す断面説明図である。FIG. 6 is a cross-sectional explanatory view showing a concentrically opposed arrangement state before the male snap and the female snap are combined. 図７は、雄スナップと雌スナップを結合した状態を示す断面説明図である。FIG. 7 is an explanatory cross-sectional view showing a state in which a male snap and a female snap are combined. 図８は、雌スナップに対し雄スナップが斜めに係合しようとしている状態を示す断面説明図である。FIG. 8 is a cross-sectional explanatory view showing a state in which the male snap is about to engage with the female snap obliquely. 図９は、雌スナップと雄スナップに横引き力が作用して、雄側係合部が水平変位した状態を破断して示す部分断面説明図である。FIG. 9 is an explanatory partial cross-sectional view showing a state in which a lateral pulling force acts on the female snap and the male snap and the male engagement portion is horizontally displaced. 図１０は、雌スナップの変形例を示す平面図である。FIG. 10 is a plan view showing a modification of the female snap. 図１１は、図１０のＣ－Ｃ線矢視断面図である。11 is a cross-sectional view taken along the line CC of FIG. 図１２は、図１０のＤーＤ線断面図である。12 is a cross-sectional view taken along the line DD of FIG. 周側壁と雌側係合部が同じ高さである雌スナップの変形例を示す図３と同様の破断部分拡大図である。It is a fracture | rupture partial enlarged view similar to FIG. 3 which shows the modification of the female snap which a surrounding side wall and a female side engaging part are the same height. 図１４は、雄スナップ部材（第２スナップ部材）の変形例を示す平面図である。FIG. 14 is a plan view showing a modification of the male snap member (second snap member). 図１４の雄スナップ部材を生地に取り付け状態の断面説明図である。FIG. 15 is a cross-sectional explanatory diagram of the male snap member of FIG. 14 attached to the fabric.
　以下、本発明に係るスナップボタンの好適な実施形態について図面を参照しつつ説明する。図１は、本発明の一実施形態に係るスナップボタンを構成する第１スナップ部材である雌スナップ１０の平面図である。図２は図１のＡ－Ａ線矢視断面図である。雌スナップ１０は、一枚の金属製の板から絞り加工等して形成されるもので、円板状の底部１１と、底部１１の周縁から立ち上がり、かつ周方向（雌スナップ１０の軸線に対する周方向）に連続する円環状の周側壁１２と、周側壁１２よりも半径方向（雌スナップ１０に対する半径方向）内側において底部１１から立ち上がり、かつ周方向に等角度間隔で一例として五つ設けられた雌側係合部１３とを備える。底部１１の中央には、雌スナップ１０を生地１（図６等参照）に取り付ける際に、取付部材３０のポスト部３２（図６等参照）を受け入れるための円形の孔部１４が設けられる。また、底部１１における周側壁１２と雌側係合部１３との間の領域（以下「底部外側領域」という。）１１ａには、各雌側係合部１３を形成するために底部１１を切開した略矩形の切開部１５が周方向に五つ設けられる。底部外側領域１１ａにおける周方向に隣り合う二つの切開部１５の間それぞれには、扇形状の非切開部１１ｃが残る。各非切開部１１ｃは、底部１１における雌側係合部１３よりも半径方向内側の領域（以下「底部中央領域」という。）１１ｂと周側壁１２（の下端）とを連結する。底部中央流域１１ｂは底部外側領域１１ａよりもわずかに下方（雌スナップ１０の上下方向は図２に基づく）に突出し、底部中央流域１１ｂの半径方向外側端部は、底部外側領域１１ａへと上方かつ半径方向外側に若干傾斜して接続する。雌側係合部１３の半径方向における位置は、詳しくは後述するが、第２スナップ部材である雄スナップ２０の雄側係合部２２（図４等参照）との係合及び脱係合が可能となる位置に設定される。周側壁１２は、その下端すなわち底部１１との境界から上方へと半径方向外側に向かって若干傾斜しつつ直線状（非湾曲状）に延びた後、周側壁１２の上端側において半径方向内側にＣ字状に湾曲する（以下、この湾曲した部分を「湾曲部１２ａ」という。）。参照番号１２ｂは、周側壁１２の頂端（上端）であり、参照番号１２ｃは湾曲部１２ａの半径方向内側端を示す。 Hereinafter, preferred embodiments of the snap button according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a female snap 10 that is a first snap member constituting a snap button according to an embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. The female snap 10 is formed by drawing or the like from a single metal plate. The female snap 10 rises from a disk-shaped bottom portion 11 and a peripheral edge of the bottom portion 11 and is circumferentially (circumferential to the axis of the female snap 10). The annular peripheral side wall 12 that is continuous in the direction), and five from the bottom 11 in the radial direction (radial direction with respect to the female snap 10) inside the peripheral side wall 12 are provided as an example at equal angular intervals in the circumferential direction. Female-side engaging portion 13. At the center of the bottom portion 11, a circular hole portion 14 is provided for receiving the post portion 32 (see FIG. 6 and the like) of the attachment member 30 when the female snap 10 is attached to the fabric 1 (see FIG. 6 and the like). Further, in the region between the peripheral side wall 12 and the female side engaging portion 13 (hereinafter referred to as “bottom outer region”) 11 a in the bottom portion 11, the bottom portion 11 is cut in order to form each female side engaging portion 13. Five substantially rectangular incisions 15 are provided in the circumferential direction. A fan-shaped non-incision portion 11c remains between the two incisions 15 adjacent in the circumferential direction in the bottom outer region 11a. Each non-incision portion 11c connects a region (hereinafter referred to as a “bottom portion central region”) 11b radially inward of the female side engagement portion 13 in the bottom portion 11 and the peripheral side wall 12 (the lower end thereof). The bottom central basin 11b protrudes slightly below the bottom outer region 11a (the vertical direction of the female snap 10 is based on FIG. 2), and the radially outer end of the bottom central basin 11b is upward and toward the bottom outer region 11a. Connect to the outside in the radial direction with a slight inclination. Although the position in the radial direction of the female side engaging portion 13 will be described in detail later, engagement and disengagement with the male side engaging portion 22 (see FIG. 4 and the like) of the male snap 20 that is the second snap member are performed. It is set to a possible position. The peripheral side wall 12 extends linearly (non-curved) from the lower end, that is, the boundary with the bottom 11 upward while being slightly inclined radially outward, and then radially inward at the upper end side of the peripheral side wall 12. Curved in a C shape (hereinafter, this curved portion is referred to as “curved portion 12a”). Reference number 12b is the top end (upper end) of the peripheral side wall 12, and reference number 12c indicates the radially inner end of the curved portion 12a.
　雌側係合部１３は、図３に拡大して示すように、底部１１（底部中央領域１１ｂの半径方向外側端）から上方へと、雌スナップ１０の軸線に平行に延びる係合基部１３ａと、係合基部１３ａの上端から上方へと半径方向外側に膨らんだ後、半径方向内側へとＣ字状に折り返されて、雌側係合部１３の上部を形成する外側膨張部１３ｂとを有する。外側膨張部１３ｂは雌側係合部１３の頂端（上端）１３ｃを含む。参照番号１３ｄは、外側膨張部１３ｂの半径方向外側端を示す。雌側係合部１３の頂端１３ｃの位置は、周側壁１２の頂端１２ｂの位置よりも若干低くなるように設計される。周方向に不連続に設けられている雌側係合部１３は、周方向に連続している周側壁１２に比べ、半径方向内外に撓み易い。雌スナップ１０には、周側壁１２と雄側係合部２２との間の底部外側領域１１ａ上に、上方に開放する環状空間１６が存在し、この環状空間１６に雄スナップ２０の雄側係合部２２（図４等参照）が出し入れされて、雄スナップ２０との着脱が行われる。 As shown in an enlarged view in FIG. 3, the female side engaging portion 13 includes an engaging base portion 13 a extending from the bottom portion 11 (radially outer end of the bottom central region 11 b) upward and parallel to the axis of the female snap 10. And an outer expansion portion 13b that bulges outward in the radial direction upward from the upper end of the engagement base portion 13a, and then is folded back in a C shape radially inward to form an upper portion of the female side engagement portion 13. . The outer inflating portion 13 b includes a top end (upper end) 13 c of the female side engaging portion 13. Reference numeral 13d indicates the radially outer end of the outer expanding portion 13b. The position of the top end 13 c of the female side engaging portion 13 is designed to be slightly lower than the position of the top end 12 b of the peripheral side wall 12. The female side engaging portion 13 provided discontinuously in the circumferential direction is more easily bent inward and outward in the radial direction than the peripheral side wall 12 continuous in the circumferential direction. The female snap 10 has an annular space 16 that opens upward on the bottom outer region 11 a between the peripheral side wall 12 and the male engaging portion 22, and the male snap engagement of the male snap 20 is present in the annular space 16. The joint portion 22 (see FIG. 4 and the like) is taken in and out, and the male snap 20 is attached and detached.
　図４は、本発明の一実施形態に係るスナップボタンを構成する第２スナップ部材である雄スナップ２０の平面図である。図５は図４のＢ－Ｂ線矢視断面図である。雄スナップ２０も、雌スナップ１０と同様に一枚の金属板から絞り加工等して形成されるもので、略円板状の底部２１と、底部２１の周縁から立ち上がる、周方向に連続する円環状の雄側係合部２２とを備える。底部２１の中央には、雄スナップ２０を生地２（図６等参照）に取り付ける際に、取付部材４０のポスト部４２（図６等参照）を受け入れるための円形の孔部２３が設けられる。底部２１は、孔部２３の周囲の、水平（雄スナップ２０の軸線に垂直な任意の面をいう）に沿う底部中央部２１ａと、底部中央部２１ａよりも若干上方（雄スナップ２０の上下方向は図５に基づく）にて、雄側係合部２２の下端から半径方向内側に水平に延びる底部外側端部２１ｂと、底部中央部２１ａ（の半径方向外側端）と底部外側端部２１ｂ（の半径方向内側端）とを、前者から後者へと上方かつ半径方向外側に傾斜して連結する底部傾斜部２１ｃとを含む。雄側係合部２２は、その下端すなわち底部２１（底部外側端部２１ｂ）との境界から上方へと半径方向外側に向かって若干傾斜しつつ直線状（非湾曲状）に延びる係合基部２２ａと、係合基部２２ａの上端から半径方向内側へとＣ字状に湾曲して半径方向内側に膨らむ内側膨張部２２ｂとを有する。内側膨張部２２ｂは雄側係合部２２の頂端（上端）２２ｃを含む。参照番号２２ｄは、内側膨張部２２ｂの半径方向内側端を示し、また、参照番号２２ｅは、雄側係合部２２において半径方向外側に最も突出する半径方向外側端（雄側係合部２２の半径方向外側に向く面における係合基部２２ａと内側膨張部２２ｂの境界に一致）を示す。 FIG. 4 is a plan view of the male snap 20 which is the second snap member constituting the snap button according to the embodiment of the present invention. 5 is a cross-sectional view taken along line BB in FIG. Similarly to the female snap 10, the male snap 20 is formed by drawing or the like from a single metal plate, and has a substantially disc-shaped bottom portion 21 and a circumferentially continuous circle rising from the periphery of the bottom portion 21. And an annular male side engagement portion 22. At the center of the bottom portion 21, a circular hole portion 23 is provided for receiving the post portion 42 (see FIG. 6 and the like) of the attachment member 40 when the male snap 20 is attached to the fabric 2 (see FIG. 6 and the like). The bottom portion 21 includes a bottom center portion 21a around the hole portion 23 along the horizontal direction (referring to an arbitrary surface perpendicular to the axis of the male snap 20), and slightly above the bottom portion center portion 21a (the vertical direction of the male snap 20). 5 based on FIG. 5), a bottom outer end 21b extending horizontally inward in the radial direction from the lower end of the male engagement portion 22, a bottom central portion 21a (radially outer end thereof), and a bottom outer end 21b ( A bottom inclined portion 21c that is connected to the former from the former to the latter in an upwardly and radially outward direction. The male side engaging portion 22 extends linearly (non-curved) while slightly inclining radially outward from the lower end, ie, the boundary with the bottom portion 21 (bottom outer end portion 21b). And an inner inflatable portion 22b that curves in a C shape from the upper end of the engagement base portion 22a inward in the radial direction and bulges inward in the radial direction. The inner inflatable portion 22 b includes a top end (upper end) 22 c of the male side engaging portion 22. Reference numeral 22d indicates a radially inner end of the inner inflatable portion 22b, and reference numeral 22e indicates a radially outer end (the male engaging portion 22 of the male engaging portion 22 that protrudes most outward in the radial direction in the male engaging portion 22). (It coincides with the boundary between the engagement base portion 22a and the inner expansion portion 22b on the surface facing radially outward).
　図６は、上述した雌スナップ１０及び雄スナップ２０を取付部材３０及び４０により生地１及び２にそれぞれ取り付けた状態を、結合前の雌スナップ１０及び雄スナップ２０を同心状に対向配置して示す断面説明図である。雌スナップ１０用の取付部材３０は、周知の部品であるため詳述はしないが、略円板状のベース部３１と、ベース部３１から突出するポスト部３２とを備える。ポスト部３２は、図６等において加締められて変形した状態で示される。雌スナップ１０を生地１に取り付ける場合、図示しないプレス装置の下方ダイに取付部材３０を載置し、上方ダイに雌スナップ１０を保持させ、取付部材３０と雌スナップ１０との間に生地１を配した後、上方ダイを降下させる。これにより、取付部材３０のポスト部３２が生地１を上方に貫通し、次いで雌スナップ１０の孔部１４を通った後、上方ダイにより雌スナップ１０の底部１１上に加締められる。これにより、雌スナップ１０が生地１に固定される。雄スナップ２０用の取付部材４０も周知の部品であり、略円板状のベース部４１と、ベース部４１から突出するポスト部４２（図６等において変形した状態で示される）とを備える。雄スナップ２０の生地２への取り付けは、上述した雌スナップ１０の生地１への取り付けと同様に、生地２を貫通し次いで雄スナップ２０の孔部２３に通した取付部材４０のポスト部４２を加締めることによって行われる。 FIG. 6 shows a state in which the female snap 10 and the male snap 20 described above are attached to the fabrics 1 and 2 by the attachment members 30 and 40, respectively, with the female snap 10 and the male snap 20 before being connected concentrically facing each other. FIG. The attachment member 30 for the female snap 10 is a well-known component and will not be described in detail, but includes a substantially disk-shaped base portion 31 and a post portion 32 protruding from the base portion 31. The post portion 32 is shown in a deformed state by crimping in FIG. When attaching the female snap 10 to the fabric 1, the mounting member 30 is placed on a lower die of a press device (not shown), the female snap 10 is held on the upper die, and the fabric 1 is placed between the mounting member 30 and the female snap 10. After placement, the upper die is lowered. As a result, the post portion 32 of the attachment member 30 penetrates the cloth 1 upward, and then passes through the hole portion 14 of the female snap 10, and is then crimped onto the bottom portion 11 of the female snap 10 by the upper die. Thereby, the female snap 10 is fixed to the cloth 1. The attachment member 40 for the male snap 20 is also a well-known component, and includes a substantially disc-shaped base portion 41 and a post portion 42 (shown in a deformed state in FIG. 6 and the like) protruding from the base portion 41. The male snap 20 is attached to the cloth 2 in the same manner as the above-described attachment of the female snap 10 to the cloth 1 by passing the post portion 42 of the attachment member 40 that passes through the cloth 2 and then passes through the hole 23 of the male snap 20. This is done by caulking.
　図６に示す雄スナップ２０と雌スナップ１０の結合前の同心配置状態で、雌側係合部１３の外側膨張部１３ｂの半径方向外側端１３ｄは、雄側係合部２２の内側膨張部２２ｂの半径方向内側端２２ｄよりもわずかに半径方向外側にあり、かつ半径方向外側端１３ｄは、半径方向外側端２２ｅの半径方向内側にある。内側膨張部２２ｂの半径方向内側端２２ｄは、雌側係合部１３の係合基部１３ａの半径方向外側面とほぼ同じ半径方向位置にある。また、雄側係合部２２の半径方向外側端２２ｅは、雌スナップ１０の周側壁１２の湾曲部１２ａの半径方向内側端１２ｃよりも若干半径方向内側にある。そして、雄スナップ２０の雄側係合部２２の内側膨張部２２ｂにおける半径方向の寸法（半径方向内側端２２ｄと半径方向外側端２２ｅとの間の寸法）は、雌スナップ１０の雌側係合部１３の外側膨張部１３ｂにおける半径方向の寸法（外側膨張部１３ｂの半径方向外側端１３ｄと外側膨張部１３ｂの半径方向内側端１３ｅとの間の寸法）よりも大きい。このため、雌スナップ１０と雄スナップ２０間の係合、脱係合が円滑に行えるとともに、雄側係合部２２が雌スナップ１０の周側壁１２と雌側係合部１３間の環状空間１６内に円滑に挿入できる。 In the concentric arrangement state before the male snap 20 and the female snap 10 are coupled as shown in FIG. 6, the radially outer end 13 d of the outer expansion portion 13 b of the female engagement portion 13 is the inner expansion portion 22 b of the male engagement portion 22. The radially outer end 22d is slightly outside the radially inner end 22d, and the radially outer end 13d is radially inside the radially outer end 22e. The radially inner end 22d of the inner inflatable portion 22b is at substantially the same radial position as the radially outer surface of the engagement base portion 13a of the female engagement portion 13. Further, the radially outer end 22 e of the male side engaging portion 22 is slightly inside the radially inner end 12 c of the curved portion 12 a of the peripheral side wall 12 of the female snap 10. The radial dimension (the dimension between the radially inner end 22d and the radially outer end 22e) of the inner expansion portion 22b of the male engagement portion 22 of the male snap 20 is the female engagement of the female snap 10. It is larger than the dimension in the radial direction of the outer expansion part 13b of the part 13 (the dimension between the radial outer end 13d of the outer expansion part 13b and the radial inner end 13e of the outer expansion part 13b). Therefore, the female snap 10 and the male snap 20 can be smoothly engaged and disengaged, and the male side engaging portion 22 has an annular space 16 between the peripheral side wall 12 and the female side engaging portion 13 of the female snap 10. It can be inserted smoothly.
　雌スナップ１０と雄スナップ２０の係合は、図６の状態から雄スナップ２０の雄側係合部２２を、雌スナップ１０の周側壁１２と雌側係合部１３間の環状空間１６に挿入することによって行われる。図７は、雌スナップ１０と雄スナップ２０が係合した状態（以下「スナップ係合状態」ともいう。）を示す断面説明図である。雄スナップ２０の雄側係合部２２を雌スナップ１０の環状空間１６に挿入（ここでは挿入方向を下方とする）する際、まず、雄側係合部２２の内側膨張部２２ｂが雌側係合部１３の外側膨張部１３ｂに接触して、各雌側係合部１３を半径方向内側に撓ませる。なお、周方向に不連続な雌側係合部１３は、周方向に連続する雄側係合部２２に比べて半径方向内外に撓み易い。次いで、雄側係合部２２の内側膨張部２２ｂが雌側係合部１３の外側膨張部１３ｂを下方へと乗り越えて雌スナップ１０の環状空間１６に入り込むと、外側膨張部１３ｂが半径方向外側に復帰し、雄スナップ２０と雌スナップ１０の係合動作が完了する。スナップ係合状態において、雄側係合部２２が環状空間１６から抜けようとしても、雄側係合部２２の内側膨張部２２ｂが雌側係合部１３の外側膨張部１３ｂに引っ掛かり、これが離脱抵抗となって、両スナップ１０、２０間の安易な離脱（脱係合）が防止される。この離脱抵抗を上回る力で雄側係合部２２を環状空間１６から抜き取ることにより、雌スナップ１０と雄スナップ２０の脱係合が行われ、この時も、雄側係合部２２の内側膨張部２２ｂが雌側係合部２３の外側膨張部１３ｂを半径方向内側に一時的に撓ませる。雌スナップ１０の周側壁１２の底部１１からの高さは、雄スナップ２０の雄側係合部２２の底部２１からの高さよりも高いことで、図７に示すように、係合状態において、雄側係合部２２が雌スナップ１０に収容される。横引き力が加わった際に、雌スナップ１０および雄スナップ２０の生地１、２が近接させることができるため、モーメントの力を発生しにくい。 In the engagement of the female snap 10 and the male snap 20, the male side engaging portion 22 of the male snap 20 is inserted into the annular space 16 between the peripheral side wall 12 and the female side engaging portion 13 of the female snap 10 from the state of FIG. Is done by doing. FIG. 7 is an explanatory cross-sectional view showing a state where the female snap 10 and the male snap 20 are engaged (hereinafter also referred to as “snap engagement state”). When the male side engaging portion 22 of the male snap 20 is inserted into the annular space 16 of the female snap 10 (here, the insertion direction is downward), first, the inner expansion portion 22b of the male side engaging portion 22 is the female side engaging portion. The female-side engaging portions 13 are bent inward in the radial direction in contact with the outer expanding portions 13b of the joint portions 13. In addition, the female side engaging part 13 which is discontinuous in the circumferential direction is more easily bent inward and outward in the radial direction than the male side engaging part 22 which is continuous in the circumferential direction. Next, when the inner inflating portion 22b of the male side engaging portion 22 gets over the outer inflating portion 13b of the female side engaging portion 13 and enters the annular space 16 of the female snap 10, the outer inflating portion 13b is radially outward. The engagement operation of the male snap 20 and the female snap 10 is completed. In the snap-engaged state, even if the male side engaging portion 22 tries to come out of the annular space 16, the inner side expanding portion 22 b of the male side engaging portion 22 is caught by the outer side expanding portion 13 b of the female side engaging portion 13, which is detached. It becomes resistance, and easy detachment (disengagement) between both snaps 10 and 20 is prevented. By pulling out the male side engaging portion 22 from the annular space 16 with a force exceeding the detachment resistance, the female snap 10 and the male snap 20 are disengaged. The part 22b temporarily bends the outer expansion part 13b of the female side engaging part 23 radially inward. The height from the bottom 11 of the peripheral side wall 12 of the female snap 10 is higher than the height from the bottom 21 of the male side engaging portion 22 of the male snap 20, and as shown in FIG. The male side engaging portion 22 is accommodated in the female snap 10. When the lateral pulling force is applied, the fabrics 1 and 2 of the female snap 10 and the male snap 20 can be brought close to each other, so that moment force is hardly generated.
　雌スナップ１０では、周側壁１２が雄スナップ２０の雄側係合部２２よりも大径であり、また、周側壁１２の湾曲部１２ａが半径方向内側に湾曲しているため、雌スナップ１０の環状空間１６に雄スナップ２０の雄側係合部２２を差し込む際に、雌スナップ１０に対する雄スナップ２０の位置や配向を正確に合わせる必要はない。以下にその例を述べる。図８は、雌スナップ１０に対し雄スナップ２０を斜めに（非同心状に）係合させようとしている状態を示す。衣類等に取り付けられた雄スナップ２０と雌スナップ１０の係合は、通常、図８に示すように斜めに行われる。この際、雄スナップ２０の雄側係合部２２の一部が雌スナップ１０の周側壁１２の湾曲部１２ａに単に接すれば、雄側係合部２２の全体が湾曲部１２ａの表面を滑るようにして環状空間１６に案内される（ガイド機能）。更に、雌側係合部１３の高さ（頂端１３ｃの位置）が周側壁１２の高さ（頂端１２ｂの位置）よりも若干低く設定されているため、雄側係合部２２の一部が、周側壁１２の湾曲部１２ａと、これより低い雌側係合部１３の外側膨張部１３ｂとの間に嵌り易く、これによっても上記ガイド機能が助長される。そのため、雌スナップ１０と雄スナップ２０の係合操作を正確な位置合わせ等を要することなく、容易かつ円滑に行うことができる。更にまた、雌スナップ１０のスナップ周側壁１２の湾曲部１２ａ及び雌側係合部１３の外側膨張部１３ｂ、並びに雄スナップ２０の内側膨張部２２ｂが湾曲しているため、衣服等が引っ掛かったり、使用者の皮膚等を傷付けるようなことはない。 In the female snap 10, the peripheral side wall 12 has a larger diameter than the male side engaging portion 22 of the male snap 20, and the curved portion 12a of the peripheral side wall 12 is curved radially inward. When the male side engaging portion 22 of the male snap 20 is inserted into the annular space 16, it is not necessary to accurately match the position and orientation of the male snap 20 with respect to the female snap 10. An example is described below. FIG. 8 shows a state in which the male snap 20 is engaged with the female snap 10 obliquely (non-concentrically). Engagement of the male snap 20 and the female snap 10 attached to clothes etc. is normally performed diagonally as shown in FIG. At this time, if a part of the male side engaging portion 22 of the male snap 20 simply contacts the curved portion 12a of the peripheral side wall 12 of the female snap 10, the entire male side engaging portion 22 slides on the surface of the curved portion 12a. In this way, it is guided to the annular space 16 (guide function). Furthermore, since the height of the female side engaging portion 13 (the position of the top end 13c) is set slightly lower than the height of the peripheral side wall 12 (the position of the top end 12b), a part of the male side engaging portion 22 is formed. It is easy to fit between the curved portion 12a of the peripheral side wall 12 and the outer expanded portion 13b of the female side engaging portion 13 lower than this, and this also promotes the above-mentioned guide function. Therefore, the engagement operation of the female snap 10 and the male snap 20 can be performed easily and smoothly without requiring accurate positioning. Furthermore, since the curved portion 12a of the snap peripheral side wall 12 of the female snap 10 and the outer expanded portion 13b of the female side engaging portion 13 and the inner expanded portion 22b of the male snap 20 are curved, clothes or the like may be caught. It will not hurt the user's skin.
　スナップ係合状態において、生地１、２を介して雌スナップ１０と雄スナップ２０をそれぞれ水平方向逆向きに引っ張る、いわゆる横引き力が働いた場合、雌スナップ１０の軸線に対し雄スナップ２０の軸線がほぼ平行にずれ、図９に拡大して示すように、環状空間１６内において雄スナップ２０の雄側係合部２２が水平方向に変位する。この時、図１９に示される雌側係合部１３とは直径方向ほぼ反対側の雌側係合部１３は、図示はしないが、雄側係合部２２によって半径方向内側に撓まされる。上記水平変位した雄側係合部２２（図９参照）は、周方向に連続して撓み難い周側壁１２に突き当たって、それ以上の水平変位が制限される。この周側壁１２による雄側係合部２２の水平変位の制限は、雌側係合部１３が弾性変形可能な範囲とされる。そのため、雄側係合部１３が塑性変形するようなことはない。また、図示しない上記直径方向ほぼ反対側では、雄側係合部２２が雌側係合部１３を押圧して、前者の内側膨張部２２ｂと後者の外側膨張部１３ｂとが互いに引っ掛かって離脱抵抗となる。そのため、横引き力が働いても、雄スナップ２０は雌スナップ１０から容易には離脱しない。 In the snap-engaged state, when a so-called lateral pulling force is applied that pulls the female snap 10 and the male snap 20 through the fabrics 1 and 2 in the opposite directions in the horizontal direction, the axis of the male snap 20 with respect to the axis of the female snap 10 Are substantially parallel to each other, and the male engagement portion 22 of the male snap 20 is displaced in the horizontal direction in the annular space 16 as shown in FIG. At this time, the female engagement portion 13 that is substantially opposite to the female side engagement portion 13 shown in FIG. 19 is bent radially inward by the male engagement portion 22 (not shown). The horizontally displaced male engagement portion 22 (see FIG. 9) abuts against the peripheral side wall 12 that is difficult to bend continuously in the circumferential direction, and further horizontal displacement is limited. The restriction on the horizontal displacement of the male side engaging portion 22 by the peripheral side wall 12 is within a range in which the female side engaging portion 13 can be elastically deformed. Therefore, the male engagement portion 13 is not plastically deformed. Further, on the substantially opposite side in the diametrical direction (not shown), the male side engaging portion 22 presses the female side engaging portion 13, and the former inner inflated portion 22 b and the latter outer inflated portion 13 b are hooked to each other, and the detachment resistance. It becomes. Therefore, even if the lateral pulling force works, the male snap 20 does not easily detach from the female snap 10.
　図１０は、雌スナップの変形例を示す平面図であり、図１１は図１０のＣ－Ｃ線矢視断面図である。雌スナップ５０は、一枚の金属製の板から絞り加工等して形成されるもので、円板状の底部５１と、底部５１の周縁から立ち上がり、かつ周方向に連続する円環状の周側壁５２と、周側壁５２よりも半径方向内側において底部４１から立ち上がり、かつ周方向に等角度間隔で一例として六つ設けられた雌側係合部５３とを備える。各雌側係合部５３の周方向に占める角度範囲（以下、単に「周方向範囲」という。）は、雌スナップ１０の各雌側係合部１３の周方向範囲よりも大きく、そのため、周方向に隣り合う二つの雌側係合部５３間の間隔がスリットのように狭い。底部５１の中央には円形の孔部５４が設けられる。周側壁５２は、雌スナップ１０の周側壁１２と実質的に同じであり、湾曲部５２ａを有する。また、雌側係合部５３の、外側膨張部５３ｂを含む縦断面形状は、雌スナップ１０の雌側係合部１３と実質的に同じである。底部５１における周側壁５２と雌側係合部５３との間の底部外側領域５１ａには、各雌側係合部５３を形成するために底部５１を切開した扇形状の切開部５５が周方向に六つ設けられる。各切開部５５の周方向範囲も、図１に平面図で示す雌スナップ１０の各切開部１５の周方向範囲よりも大きい。そのため、底部外側領域５１ａにおける周方向に隣り合う二つの切開部５５間にそれぞれ残る非切開部５１ｃの周方向範囲は、雌スナップ１０の非切開部１１ｃに比べかなり狭い。そのため、雌スナップ５０では、底部５１の強度が不足するおそれがある。これを補うため、底部５１の各非切開部５１ｃに対応する部分に上方に凸となるリブ５７が設けられており、これが、図１０のＣ－Ｃ線断面図である図１２に示される。各リブ５７は、各非切開部５１ｃの周方向中央において半径方向に沿って延びるように設けられ、各リブ５７の半径方向外側端は周側壁５２に近接し、半径方向内側端は底部中央領域５１ｂに入り込む。 FIG. 10 is a plan view showing a modification of the female snap, and FIG. 11 is a cross-sectional view taken along the line CC in FIG. The female snap 50 is formed by drawing or the like from a single metal plate, and has a disk-shaped bottom 51 and an annular peripheral wall that rises from the periphery of the bottom 51 and continues in the circumferential direction. 52 and six female-side engaging portions 53 that rise from the bottom 41 on the radially inner side of the peripheral side wall 52 and are provided as an example at equal angular intervals in the circumferential direction. The angle range (hereinafter, simply referred to as “circumferential range”) of each female side engaging portion 53 in the circumferential direction is larger than the circumferential range of each female side engaging portion 13 of the female snap 10. The interval between two female side engaging portions 53 adjacent in the direction is narrow like a slit. A circular hole 54 is provided at the center of the bottom 51. The peripheral side wall 52 is substantially the same as the peripheral side wall 12 of the female snap 10, and has a curved portion 52a. Further, the vertical cross-sectional shape of the female side engaging portion 53 including the outer inflating portion 53 b is substantially the same as the female side engaging portion 13 of the female snap 10. In a bottom outer region 51 a between the peripheral side wall 52 and the female side engaging portion 53 in the bottom portion 51, a fan-shaped incision portion 55 in which the bottom portion 51 is cut in order to form each female side engaging portion 53 is circumferential. Six are provided. The circumferential range of each incision 55 is also larger than the circumferential range of each incision 15 of the female snap 10 shown in a plan view in FIG. Therefore, the circumferential range of the non-incision portion 51c remaining between the two incisions 55 adjacent in the circumferential direction in the bottom outer region 51a is considerably narrower than the non-incision portion 11c of the female snap 10. Therefore, in the female snap 50, the strength of the bottom 51 may be insufficient. In order to compensate for this, ribs 57 that protrude upward are provided at portions corresponding to the respective non-incision portions 51c of the bottom portion 51, and this is shown in FIG. 12, which is a sectional view taken along the line CC of FIG. Each rib 57 is provided so as to extend along the radial direction at the center in the circumferential direction of each non-incision portion 51c. The radially outer end of each rib 57 is close to the peripheral side wall 52, and the radially inner end is the bottom center region. Enter 51b.
　以上に述べた雌スナップ１０、５０は、雌側係合部１３、５３の高さが周側壁１２、５２の高さよりも低い例であるが、図１３に拡大して示すように、雌側係合部１３ｆの高さは周側壁１２（便宜的に雌スナップ１０の周側壁１２と同じ参照番号を用いる）と同じ高さであってもよい。 The female snaps 10 and 50 described above are examples in which the height of the female side engaging portions 13 and 53 is lower than the height of the peripheral side walls 12 and 52. As shown in an enlarged view in FIG. The height of the engaging portion 13f may be the same height as the peripheral side wall 12 (for convenience, the same reference numerals as those of the peripheral side wall 12 of the female snap 10 are used).
　図１４及び１５は、第２スナップ部材である雄スナップの変形例である雄スナップ６０を示す平面図、及び雄スナップ６０を生地２ａに取り付けた状態を示す断面説明図である。雄スナップ６０は、一枚の金属板から形成され、略円板状で水平に沿う底部６１と、底部６１から立ち上がる、周方向に連続する円環状で二重板構造の雄側係合部６２とを備える。底部６１の中央には、雄スナップ６０を生地２ａに取り付ける際に、取付部材４０ａのベース部４１ａから突出するポスト部４２ａを受け入れるための円形の孔部６３が設けられる。底部６１は、雄側係合部６２から半径方向内側の底部中央部６１ａと、雄側係合部６２から半径方向外側の底部外側端部６１ｂとに区分される。雄側係合部６２は、底部中央部６１ａの半径方向外側端から上方にほぼ垂直に延びた後、半径方向内側に膨らんで内側膨張部６２ｂを成す半径方向内側板部６２ａと、底部外側端部６１ｂの半径方向内側端から上方にほぼ垂直に延びる半径方向外側板部６２ｃとを含み、半径方向内側板部６２ａと半径方向外側板部６２ｃは、雄側係合部６２の上端部で連結する。雄スナップ６０は、上述した雄スナップ２０と同様に雌スナップ１０と係合及び脱係合可能である。雄スナップ６０の内側膨張部６２ｂの半径方向内側端６２ｄは、雌スナップ１０の周側壁１２の湾曲部１２ａの半径方向内側端１２ｃよりも若干半径方向内側にある。また、雄スナップ６０の雄側係合部６２の内側膨張部６２ｂにおける半径方向の寸法（半径方向内側端６２ｄと半径方向外側板部６２ｃの外側面との間の水平に沿う寸法）は、雌スナップ１０の雌側係合部１３の外側膨張部１３ｂにおける半径方向の寸法よりも大きい。 14 and 15 are a plan view showing a male snap 60 which is a modification of the male snap as the second snap member, and a cross-sectional explanatory view showing a state in which the male snap 60 is attached to the fabric 2a. The male snap 60 is formed of a single metal plate, is a substantially disc-shaped bottom portion 61 that extends horizontally, and rises from the bottom portion 61, and is an annular, male-side engaging portion 62 having a double plate structure that is continuous in the circumferential direction. With. In the center of the bottom portion 61, a circular hole 63 is provided for receiving the post portion 42a protruding from the base portion 41a of the attachment member 40a when the male snap 60 is attached to the fabric 2a. The bottom portion 61 is divided into a bottom center portion 61 a radially inward from the male side engaging portion 62 and a bottom outer end portion 61 b radially outward from the male side engaging portion 62. The male engagement portion 62 extends substantially vertically upward from the radial outer end of the bottom central portion 61a, and then swells radially inward to form an inner expansion portion 62b, and a bottom outer end. A radially outer plate 62c extending substantially vertically upward from the radially inner end of the portion 61b. The radially inner plate 62a and the radially outer plate 62c are connected at the upper end of the male engagement portion 62. To do. The male snap 60 can be engaged and disengaged with the female snap 10 in the same manner as the male snap 20 described above. The radially inner end 62 d of the inner expanding portion 62 b of the male snap 60 is slightly inside the radial inner end 12 c of the curved portion 12 a of the peripheral side wall 12 of the female snap 10. Further, the radial dimension (the dimension along the horizontal between the radially inner end 62d and the outer surface of the radially outer plate 62c) of the inner expansion portion 62b of the male engagement portion 62 of the male snap 60 is a female dimension. It is larger than the dimension in the radial direction of the outer expanding portion 13b of the female side engaging portion 13 of the snap 10.
　また、以上の雌スナップ１０、５０は、別個のバネ部材を使用することなく一枚の金属板から形成可能であるため、軽量化を実現することができる。なお、以上の実施形態は単なる例示であり、特許請求の範囲及びその均等の範囲内で変更等が可能である。 Further, since the female snaps 10 and 50 can be formed from a single metal plate without using a separate spring member, the weight can be reduced. The above embodiment is merely an example, and changes and the like can be made within the scope of the claims and the equivalents thereof.
　１０、５０　雌スナップ（第１スナップ部材）
　１１、５１　底部
　１１ｃ、５１ｃ　非切開部
　１２、５２　周側壁
　１２ａ、５２ａ　湾曲部
　１３、１３ｆ、５３　雌側係合部
　１３ｂ、５３ｂ　外側膨張部
　１５、５５　切開部
　１６　環状空間
　２０、６０　雄スナップ（第２スナップ部材）
　２１、６１　底部
　２２、６２　雄側係合部
　２２ｂ、６２ｂ　内側膨張部
　５７　リブ 10, 50 Female snap (first snap member)
11, 51 Bottom part 11c, 51c Non-incision part 12, 52 Peripheral side wall 12a, 52a Bending part 13, 13f, 53 Female side engagement part 13b, 53b Outer expansion part 15, 55 Incision part 16 Annular space 20, 60 Male snap ( Second snap member)
21, 61 Bottom portion 22, 62 Male engagement portion 22b, 62b Inner expansion portion 57 Rib

Claims (5)

  1. 　第１スナップ部材（１０、５０）と、第１スナップ部材（１０、５０）と係合及び脱係合可能な第２スナップ部材（２０、６０）とからなるスナップボタンであって、
    　第１スナップ部材（１０、５０）は、一枚の金属製の板から形成され、円板状の第１底部（１１、５１）と、第１底部（１１、５１）の周縁から立ち上がる、周方向に連続する周側壁（１２、５２）と、周側壁（１２、５２）よりも半径方向内側において、第１底部（１１、５１）を切開して第１底部（１１、５１）から立ち上げた、周方向に複数の第１係合部（１３、１３ｆ、５３）とを含み、
    　各第１係合部（１３、５３）は、その上端側に、半径方向外側に膨らむ外側膨張部（１３ｂ、５３ｂ）を有し、
    　第２スナップ部材（２０、６０）は、円形の第２底部（２１、６１）と、第２底部（２１、６１）から立ち上がる、周方向に連続する第２係合部（２２、６２）とを含み、
    　第２係合部（２２、６２）は、その上端側に、半径方向内側に膨らむ内側膨張部（２２ｂ、６２ｂ）を有し、
    　第１スナップ部材（１０、５０）及び第２スナップ部材（２０、６０）が同心状にある際、前記外側膨張部（１３ｂ、５３ｂ）の半径方向外側端は、前記内側膨張部（２２ｂ、６２ｂ）の半径方向内側端（２２ｄ、６２ｄ）よりも半径方向外側に位置し、
    　第２スナップ部材（２０、６０）の第２係合部（２２、６２）を第１スナップ部材（１０、５０）の周側壁（１２、５２）の内側と第１係合部（１３、１３ｆ、５３）の外側との間で、周側壁に沿って形成される環状空間（１６）に挿入することにより、第１スナップ部材（１０、５０）と第２スナップ部材（２０、６０）が係合するスナップボタン。     A snap button comprising a first snap member (10, 50) and a second snap member (20, 60) engageable and disengageable with the first snap member (10, 50),
    The first snap members (10, 50) are formed of a single metal plate, and rise from the periphery of the disk-shaped first bottom (11, 51) and the first bottom (11, 51). The first bottom portion (11, 51) is incised and raised from the first bottom portion (11, 51) on the radially inner side of the peripheral side wall (12, 52) and the peripheral side wall (12, 52) in the radial direction. A plurality of first engaging portions (13, 13f, 53) in the circumferential direction,
    Each first engagement portion (13, 53) has an outer expansion portion (13b, 53b) that swells radially outward on the upper end side thereof,
    The second snap member (20, 60) includes a circular second bottom portion (21, 61) and a second engaging portion (22, 62) that rises from the second bottom portion (21, 61) and is continuous in the circumferential direction. Including
    The second engagement portion (22, 62) has an inner expansion portion (22b, 62b) that swells radially inward on the upper end side thereof,
    When the first snap member (10, 50) and the second snap member (20, 60) are concentric, the radially outer end of the outer expansion portion (13b, 53b) is connected to the inner expansion portion (22b, 62b). ) Radially outward from the radially inner end (22d, 62d) of
    The second engaging portion (22, 62) of the second snap member (20, 60) is connected to the inside of the peripheral side wall (12, 52) of the first snap member (10, 50) and the first engaging portion (13, 13f). 53), the first snap member (10, 50) and the second snap member (20, 60) are engaged by being inserted into an annular space (16) formed along the peripheral side wall. Snap button to match.
  2. 　前記第１スナップ部材（１０、５０）の周側壁（１２、５２）は、その上端側に、半径方向内側に湾曲する湾曲部（１２ａ、５２ａ）を有する請求項１のスナップボタン。 The snap button according to claim 1, wherein the peripheral side wall (12, 52) of the first snap member (10, 50) has a curved portion (12a, 52a) curved inward in the radial direction on an upper end side thereof.
  3. 　前記第１スナップ部材（１０、５０）の周側壁（１２、５２）の上端（１２ｂ）は第１係合部（１３、５３）の上端（１３ｃ）よりも上方に位置する請求項１又は２のスナップボタン。 The upper end (12b) of the peripheral side wall (12, 52) of the first snap member (10, 50) is located above the upper end (13c) of the first engagement portion (13, 53). Snap button.
  4. 　前記第１スナップ部材（５０）は、第１底部（５１）に、各第１係合部（５３）に対応する切開部（５５）と、周方向に隣り合う二つの切開部（５５）間の非切開部（５１ｃ）とを含み、各非切開部（５１ｃ）にリブ（５７）を設けた請求項１～３のいずれか１つのスナップボタン。 The first snap member (50) includes a first bottom portion (51), an incision portion (55) corresponding to each first engagement portion (53), and two incision portions (55) adjacent in the circumferential direction. The snap button according to any one of claims 1 to 3, wherein each non-incision (51c) is provided with a rib (57).
  5. 　前記第２スナップ部材（２０）の第２係合部（２２）の内側膨張部（２２ｂ）における半径方向の寸法は、第１スナップ部材（１０、５０）の第１係合部（１３、５３）の外側膨張部（１３ｂ、５３ｂ）における半径方向の寸法よりも大きい請求項１～４のいずれか１つのスナップボタン。 The radial dimension of the inner expansion portion (22b) of the second engagement portion (22) of the second snap member (20) is the first engagement portion (13, 53) of the first snap member (10, 50). The snap button according to any one of claims 1 to 4, wherein the snap button is larger than a radial dimension of the outer expansion portion (13b, 53b).
PCT/JP2011/066138 2011-07-14 2011-07-14 Snap button WO2013008340A1 (en)

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CN201180071766.3A CN103607919B (en) 2011-07-14 2011-07-14 Snap-fastener
TW101124775A TWI465201B (en) 2011-07-14 2012-07-10 Male and female buckle

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EP2832250A1 (en) * 2013-08-02 2015-02-04 Riri S.A. A press stud with an anti-uncoupling system
KR200483243Y1 (en) * 2015-12-09 2017-04-18 박창배 A female button for snap button
US9622549B2 (en) 2013-08-02 2017-04-18 Riri S.A. Press stud with an anti-uncoupling system
US10681962B1 (en) 2019-04-05 2020-06-16 Dubrosky & Tracy Patent Services Corp. Multi-directional closure
CN113729363A (en) * 2021-08-24 2021-12-03 宏基钮扣（石狮）有限公司 Button pressing assembly and using method thereof
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EP2832250A1 (en) * 2013-08-02 2015-02-04 Riri S.A. A press stud with an anti-uncoupling system
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CN113729363A (en) * 2021-08-24 2021-12-03 宏基钮扣（石狮）有限公司 Button pressing assembly and using method thereof
US11903458B1 (en) 2022-12-16 2024-02-20 Dubrosky & Tracy Patent Service Corp. Riveting multi-directional closure

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