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CN-116782789-B - Zipper fastener

CN116782789BCN 116782789 BCN116782789 BCN 116782789BCN-116782789-B

Abstract

A slide fastener (1) of the present invention comprises left and right fastener stringers (10), at least one slider (20), and a stopper (30) against which the slider (20) is abutted, wherein the stopper (30) is fixed across the left and right fastener tapes (11), and has a shape in which a part of the stopper (30) can be inserted between an upper wing plate (22) and a lower wing plate (23) of the tape slider (20), the interval in the width direction between left and right fastener elements (13) in a state in which the left and right fastener stringers (10) are separated is defined as a fastener element interval (A), the maximum value of the dimension in the width direction of a connecting post (24) of the slider (20) is defined as a post maximum width (B), and the fastener element interval (A) is a dimension of 100% to 150% of the post maximum width (B). As a result, when the slider (20) is slid toward the stopper (30), the fastener element (13) is less likely to fall down in the vicinity of the stopper (30), and the fastener element (13) can be prevented from being caught by the slider (20).

Inventors

  • FENG TIANTIAN
  • TAMURA KAZUO
  • DONG YOUCHEN

Assignees

  • YKK株式会社

Dates

Publication Date
20260508
Application Date
20210209

Claims (6)

  1. 1. A slide fastener comprising left and right fastener stringers (10) each having a plurality of synthetic resin fastener elements (13) each having a shape independent of each other provided on a tape side edge portion of a fastener tape (11), at least one slider (20) slidably attached to a fastener row (14) of the left and right fastener stringers (10), and a stopper (30) for restricting a sliding range of the slider (20) by abutting the slider (20), the slider (20) having an upper wing (22), a lower wing (23) disposed separately from the upper wing (22), and a connecting post (24) connecting the upper wing (22) and the lower wing (23), the stopper (30) being fixed across the left and right fastener tapes (11) and having a shape in which a part of the stopper (30) is insertable between the upper wing (22) and the lower wing (23) of the slider (20), the slide fastener (1) being characterized in that, In a state in which the left and right fastener stringers (10) are separated and in which at least a portion of the left and right fastener rows (14) that is close to the stopper (30) is held in the tape length direction of the fastener tape (11), a gap in the tape width direction between a fastener element (13 a) of one fastener row (14) adjacent to the stopper (30) and a fastener element (13 b) of the other fastener row (14) adjacent to the stopper (30) is defined as a fastener element gap (A), The maximum value of the dimension in the tape width direction of the connecting post (24) of the slider (20) is defined as a post maximum width (B), The element spacing (A) is greater than or equal to 100% and less than or equal to 150% of the maximum column width (B).
  2. 2. The zipper of claim 1, wherein the zipper comprises a plurality of zipper elements, The stopper (30) has a stopper body portion (31) fixed to the left and right fastener tapes (11), a1 st extension portion (41) extending from the stopper body portion (31) toward one of the left and right fastener rows (14), a2 nd extension portion (42) extending from the stopper body portion (31) toward the other of the left and right fastener rows (14), and a column accommodating portion (43) provided between the 1 st extension portion (41) and the 2 nd extension portion (42) and accommodating the connecting column (24) of the slider (20), The 1 st extension part (41) and the 2 nd extension part (42) respectively have an upper surface facing the upper wing plate (22) and a lower surface facing the lower wing plate (23) when the connecting column (24) of the slider (20) is accommodated in the column accommodating part (43), One of the upper surface and the lower surface of the 1 st extension portion (41) and the 2 nd extension portion (42) has insertion inclined portions (41 a, 42 a), and the insertion inclined portions (41 a, 42 a) are inclined in a direction in which the dimension in the thickness direction of the 1 st extension portion (41) or the 2 nd extension portion (42) decreases toward the element row (14).
  3. 3. The zipper of claim 2, wherein the zipper comprises a plurality of zipper elements, At least one of the upper blade (22) and the lower blade (23) has an inner surface inclined portion (22 a), the inner surface inclined portion (22 a) is inclined in a direction in which the dimension in the thickness direction of the upper blade (22) or the lower blade (23) is gradually reduced toward the shoulder opening side of the slider (20) formed on the left and right sides of the connecting column (24), The insertion inclined portions (41 a, 42 a) of the 1 st extension (41) and the 2 nd extension (42) and the inner surface inclined portion (22 a) of the upper wing plate (22) or the lower wing plate (23) have shapes corresponding to each other.
  4. 4. A slide fastener according to claim 2 or 3, wherein, The tape width direction interval between the opposite tape side edges of the left and right fastener tapes (11) at the position close to the stopper (30) is defined as a tape interval (D), The maximum value of the dimension of the stopper (30) in the width direction is defined as the maximum width (F) of the stopper, The stopper (30) is formed by setting the ratio of the value of the maximum stopper width (F) -band gap (D) to the maximum stopper width (F) to 50-65%.
  5. 5. A slide fastener according to claim 2 or 3, wherein, The 1 st distal end portion (41 c) of the 1 st extension portion (41) facing the fastener element row (14) and the 2 nd distal end portion (42 c) of the 2 nd extension portion (42) facing the fastener element row (14) are disposed at the same positions with respect to the tape length direction of the fastener tape (11).
  6. 6. A slide fastener according to any one of claim 1 to 3, The maximum value of the dimension in the width direction of the fastener elements (13) on the left and right which are engaged with each other is defined as the maximum width (C) of the engaging element, The tape width direction interval between the opposite tape side edges of the left and right fastener tapes (11) at the position close to the stopper (30) is defined as a tape interval (D), The band gap (D) is equal to or greater than the maximum width (C) of the engagement element.

Description

Zipper fastener Technical Field The present invention relates to a slide fastener having a stopper fixed across right and left fastener tapes. Background As one type of slide fastener, a slide fastener having water blocking properties is known, which suppresses the penetration of liquid such as water from the tape front surface to the tape back surface (or from the tape back surface to the tape front surface) of the slide fastener. In a slide fastener having water-stopping properties (hereinafter, referred to as a water-stopping slide fastener), a water-repellent layer formed of a thermoplastic resin or a thermoplastic elastomer capable of suppressing or preventing the penetration of a liquid may be provided on at least one of a front surface and a back surface of a fastener tape. For example, in international publication No. 2013/01307 (patent document 1), an upper stopper 80 shown in fig. 6 is disclosed as a stopper for a water-stop slide fastener. The upper stopper 80 of patent document 1 includes a main body 81 fixed across the left and right fastener tapes, an abutting portion 82 formed integrally with the main body 81 and abutting against an upper wing plate of the slider, a 1 st extending portion 83 extending from the main body 81 toward one of the left and right element rows, and a2 nd extending portion 84 extending from the main body 81 toward the other of the left and right element rows. Between the 1 st extension 83 and the 2 nd extension 84, a receiving portion (gap) 85 for receiving the coupling post of the slider is provided. The abutment portion 82 of the upper stopper 80 has a shape corresponding to the shape of the shoulder-opening-side end portion (tip portion) of the upper wing plate of the slider so that no gap is formed between the abutment portion 82 and the upper wing plate when the upper wing plate of the slider is abutted. The abutting portion 82 has left and right protruding portions 82a provided at left and right side edge portions of the abutting portion 82. The left and right protruding portions 82a are formed so as to surround the shoulder-opening side end portion of the upper blade from the left and right sides. When the slider is brought into contact with the upper stopper 80, the slide fastener having the upper stopper 80 of patent document 1 can prevent a gap from being formed between the upper wing plate of the slider and the upper stopper 80. Therefore, the slide fastener can stably exhibit water stopping performance in a state where the left and right element rows are engaged. Prior art literature Patent literature Patent document 1 International publication No. 2013/01307 Disclosure of Invention In a water-stop slide fastener having an upper stopper 80 of patent document 1, for example, when a slider is slid toward the upper stopper 80 to engage left and right element rows, when the slider is moved to a position close to the upper stopper 80, the posture of the element disposed near the upper stopper 80 is inclined with respect to the shoulder opening of the slider, and as a result, the inclined element may be caught on the slider at the shoulder opening of the slider. In the following description, the case where the posture of the fastener element is inclined so as to be caught by the shoulder opening of the slider is referred to as the fastener element tilting. When the above-described tilting of the fastener element occurs in the vicinity of the upper stopper 80, the fastener element is caught by the slider, and as a result, the sliding of the slider is stopped in the middle of the element row. As a result, the slider cannot be brought into contact with the upper stopper 80, and therefore the water-stopping property of the slide fastener may be impaired. In the case of storing the slide fastener in a state where the slider is brought into contact with the upper stopper 80, for example, a portion of the element row close to the upper stopper 80 is maintained in a state inserted into the element guide path of the slider. Therefore, the left and right element rows may be held while maintaining a substantially Y-shaped curved shape along the element guide path of the slider. In addition, the waterproof fastener is provided with a waterproof layer for suppressing or preventing the penetration of liquid as described above in the fastener tape. Therefore, if the left and right fastener element rows are held in a shape that is curved along the fastener element guide path for a long period of time, a part of the fastener tape may be curved in accordance with the curved shape of the fastener element rows, and the curved shape (curved trace) of the fastener tape may be maintained by the waterproof layer and remain in the fastener tape. In a slide fastener in which a curved shape remains on the fastener tape as described above, the above-described pouring of the fastener element near the upper stopper 80 is more likely to occur, and therefore, there is a case where the water sto