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CN-116685233-B - Zipper fastener

CN116685233BCN 116685233 BCN116685233 BCN 116685233BCN-116685233-B

Abstract

When the slider (5) is prevented from advancing by the stopper (72) of the front stopper (7), the front stopper (7) is oriented such that the contact portion (12 g) included in the front region (12 f) of the 2 nd side surface (12) of the front stopper (7) is in contact with the inner wall surface (86) of the flange portions (54 b, 55 b) of the slider (5), and at least a part of the rear region (11 r) of the 1 st side surface (11) of the front stopper (7) is in contact with the wall surface (94) of the connecting post (53).

Inventors

  • Inukai Takako
  • Zhi Yingrun
  • MORI KENTARO

Assignees

  • YKK株式会社

Dates

Publication Date
20260508
Application Date
20210212

Claims (9)

  1. 1. A slide fastener (1) is provided with: a pair of fastener stringers (2 a, 2 b) having fastener elements (4 a, 4 b) provided on opposite side edges (39 a, 39 b) of the fastener tapes (3 a, 3 b), and A slider (5) which moves forward and backward to engage and disengage the fastener elements (4 a, 4 b) of the pair of fastener stringers (2 a, 2 b), At least one fastener stringer (2 b) of the pair of fastener stringers (2 a, 2 b) is provided with a front stopper (7) made of resin and provided adjacent to the fastener element (4 b) of the at least one fastener stringer (2 b), The front stopper (7) is provided with an insertion portion (71) to be inserted into the slider (5), a stopper portion (72) provided with an upper protruding portion (73) and a lower protruding portion (74) protruding upward and downward, respectively, so as to prevent the slider (5) from advancing, a1 st side surface (11) located on the coupling post (53) side of the slider (5) in a state where the slider (5) advances is prevented by the stopper portion (72), and a2 nd side surface (12) located on the flange portions (54 b, 55 b) side of the slider (5) in a state where the slider (5) advances is prevented by the stopper portion (72), The 1 st and 2 nd side surfaces (11, 12) include at least rear regions (11 r, 12 r) and front regions (11 f, 12 f) located forward of the rear regions (11 r, 12 r), respectively, The front region (12 f) of the 2 nd side (12) is an inclined surface inclined to a side away from the 1 st side (11) as it extends forward so as to form a predetermined angle (θ) with the rear region (12 r) of the 2 nd side (12), When the slider (5) is prevented from advancing by the stopper (72), the front stopper (7) is oriented such that a contact portion (12 g) included in a front region (12 f) of the 2 nd side surface (12) is in contact with an inner wall surface (86) of the flange portions (54 b, 55 b), and at least a part of a rear region (11 r) of the 1 st side surface (11) is in contact with a wall surface (94) of the connecting post (53).
  2. 2. The zipper of claim 1, wherein the zipper comprises a plurality of zipper elements, The rear region (12 r) of the 2 nd side surface (12) is a flat surface extending parallel to the longitudinal direction of the at least one fastener stringer (2 b).
  3. 3. The slide fastener according to claim 1 or 2, wherein, The predetermined angle (θ) is in the range of 5 ° to 20 °.
  4. 4. The slide fastener according to claim 1 or 2, wherein, The front stop (7) has a front face (13) and a chamfered corner (15) provided between the front face (13) and the 2 nd side (12), The corner portion (15) is positioned in front of the flange portions (54 b, 55 b) at a distance from the flange portions (54 b, 55 b) when the advance of the slider (5) is stopped by the stopper portion (72).
  5. 5. The slide fastener according to claim 1 or 2, wherein, When the contact portion (12 g) is in contact with the inner wall surface (86) of the flange portion (54 b, 55 b), the 1 st side surface (11) is in contact with the wall surface (94) of the connecting post (53) in the rear region (11 r) thereof, and is also in contact with the wall surface (94) of the connecting post (53) in the front region (11 f) thereof.
  6. 6. The slide fastener according to claim 1 or 2, wherein, The rear region (11 r) of the 1 st side surface (11) includes a flat surface extending parallel to the longitudinal direction of the at least one fastener stringer (2 b).
  7. 7. The slide fastener according to claim 1 or 2, wherein, The connecting post (53) has left and right wall surfaces (93, 94) which approach each other as they extend toward the rear end of the connecting post (53), and at least a part of the rear region (11 r) of the 1 st side surface (11) is in contact with the wall surface (94).
  8. 8. The slide fastener according to claim 1 or 2, wherein, The upper protruding part (73) has inclined surfaces (73 p, 73 q) which are in contact with inclined surfaces (58 p, 58 q) provided on the lower surface of an upper wing plate (51) of the slider (5) so as to face forward, The lower protruding portion (74) has inclined surfaces (74 p, 74 q) that come into contact with inclined surfaces (59 p, 59 q) provided on the upper surface of a lower wing plate (52) of the slider (5) so as to face forward.
  9. 9. The slide fastener according to claim 1 or 2, wherein, The slider (5) is pulled forward with a force of 66N or more in a state where the pair of fastener stringers (2 a, 2 b) are separated, and the state where the forward movement of the slider (5) is stopped by the front stopper (7) can be continued for a predetermined time range of at least 10 seconds.

Description

Zipper fastener Technical Field The present disclosure relates to a zipper. Background In the slide fastener, each fastener element of the left and right fastener stringers is engaged and disengaged by the advance and the retreat of the slider. As a front stopper of a slide fastener, as disclosed in patent document 1, a front stopper in which an upper ridge portion and a lower ridge portion are formed so as to be long in a width direction so as to traverse a core wire is known (see fig. 1 of patent document 1). As a rear stopper of a slide fastener, a separable bottom end stop capable of separating right and left fastener stringers is known as disclosed in patent document 2 (see fig. 1 of patent document 2). The front stopper of patent document 2 is made of metal, and has bulging portions provided on the upper and lower sides (see fig. 6 of patent document 2). Patent document 3 discloses a slide fastener capable of separating right and left fastener stringers, as in patent document 2. In patent document 3, unlike patent document 2, the slider can be advanced beyond the front stopper of the fastener stringer, that is, the slider can be detached from the fastener stringer. For this purpose, the slider in the state of fig. 3A of patent document 3 is rotated by being operated to be in the state of fig. 3B, and then to be in the state of fig. 3C. Fig. 4A to 4C of patent document 3 show a process of attaching a slider to a fastener stringer. Prior art literature Patent literature Patent document 1 International publication No. 2017/104007 Patent document 2 Japanese patent application laid-open No. 2002-253307 Patent document 3 Japanese patent laid-open No. 2-239804 Disclosure of Invention Problems to be solved by the invention It is desirable to more reliably restrain the slider from moving and falling off beyond the front stopper of the single-tooth fastener tape. For this purpose, as shown in FIG. 13, there is a case where a weight 100 is attached to a tab 57 of a slider 5 and the slider is pulled forward, that is, in a vertical direction Fang Laxia. According to the study of the present inventors, it is apparent that, in the case of performing such a test, a large force may be locally applied to the slider due to the difference in shape of the front stopper of the single fastener tape. Solution for solving the problem A slide fastener according to an aspect of the present disclosure includes a pair of fastener stringers having fastener elements provided on opposite side edges of the fastener tapes, and a slider that advances and retreats to engage and disengage the fastener elements of the pair of fastener stringers. At least one fastener stringer of the pair of fastener stringers includes a front stopper made of resin provided adjacent to fastener elements of the at least one fastener stringer. The front stopper includes an insertion portion to be inserted into the slider, a stopper portion provided with an upper protruding portion and a lower protruding portion protruding to an upper side and a lower side, respectively, so as to prevent the slider from advancing, a1 st side surface located on a coupling post side of the slider in a state where the slider is prevented from advancing by the stopper portion, and a2 nd side surface located on a flange portion side of the slider in a state where the slider is prevented from advancing by the stopper portion. The 1 st side and the 2 nd side each include at least a rear region and a front region located forward of the rear region. The front region of the 2 nd side surface is inclined or raised to a side away from the 1 st side surface so as to form a predetermined angle (not limited thereto, but for example, an angle in the range of 5 ° to 20 °) with the rear region of the 2 nd side surface as it extends forward. When the slider is prevented from advancing by the stopper portion, the front stopper is oriented such that the contact portion included in the front region of the 2 nd side surface contacts the inner wall surface of the flange portion, and at least a part of the rear region of the 1 st side surface contacts the wall surface of the connecting post. In several embodiments, the front region of the 2 nd side is an inclined surface inclined as described above. The slider can be made of resin, but should not necessarily be limited thereto. In several embodiments, the front stop has a front surface and a chamfered corner disposed between the front surface and the 2 nd side. The corner portion can be positioned in front of the flange portion at a distance from the flange portion when the advance of the slider is stopped by the stopper portion. When the contact portion is in contact with the inner wall surface of the flange portion, the 1 st side surface can be in contact with the wall surface of the coupling post at a part of the front region thereof, in addition to the rear region thereof. In several embodiments, the rear region of the 2 nd side surface may be a