Zipper and top stop in the zipper

Abstract

[Problem] To provide a slide fastener in which a slider can be quickly pulled out while a pair of zipper tapes are closed, and a top stopper used in the slide fastener.[Solution] In a slide fastener 1, a first top stopper 41 is attached so as to be able to approach and separate from a front end portion 311 which is the most forward on the front side F in a first wire member and has a shape that cannot pass through a slider 7, and a second top stopper 42 is attached so as to cover a front end part 321 which is the most forward on the front side F in a second wire member 32 and has a shape that can pass through the slider 7.

Claims

[1] Zipper (1) comprising: a fastener chain (10) having a pair of left and right first and second fastener tapes (11, 12) in which first and second filament elements (31, 32) made of a resin are attached to first and second side edges (21d, 22d) of a pair of left and right first and second fastening tapes (21, 22); a slider (7) arranged to allow the first and second filament elements (31, 32) to pass through, and is arranged to open and close a section between the first and second zipper tapes (11, 12); a lower stopper (5) arranged to connect the first and second fastener tapes (11, 12) at a back side of the first and second fastener tapes (11, 12); a first upper stop (41) attached to the first fastening band (21) on a front side (F) of the first filament element (31); and a second upper stop (42) attached to the second fastening band (22) on the front side (F) of the second filament element (32), wherein the first upper stop (41) is mounted so that it can approach and separate from a front end portion (311) located furthest forward on the front side (F) in the first filament element (31) and has a shape that does not allow the slider (7) to pass therethrough, the second upper stop (42) is mounted so as to include a front end portion (321) which is located furthest forward on the front side (F) in the second filament element (32) and has a shape which allows the slider (7) to pass therethrough, and in the longitudinal direction of the first and second fastening bands (21, 22), a side of the upper stopper (4) is defined as the front side (F), a side of the lower stopper (5) is defined as the back side (B), a direction horizontal to the surfaces of the first and second fastening bands (21, 22) and perpendicular to a front-to-back direction is defined as a left-right direction (LR), and a direction perpendicular to the surfaces of the first and second fastening bands (21, 22) is defined as an up-down direction (UD). [2] The slide fastener (1) according to claim 1, wherein the first top stopper (41) includes a first front portion (41a) formed on an upper surface (U) of the first fastening tape (21), the first front portion (41a) having a first front upper surface (41a1), and a first front tapered portion 41a2 projecting from the first front upper surface (41a1) toward the back surface (B) and one side of the second fastening tape (22) and having a thickness thinner than that of the first front upper surface (41a1) of the first fastening tape (21) when the first front tapered portion 41a2 is separated from the first front upper surface (41a1). [3] The slide fastener (1) according to claim 2, wherein the first upper stopper (41) has a first front portion side surface (41e) forming a side surface of the first front portion (41a), and at least one surface of the first front portion side surface (41e) is recessed on the back side (B) and the second fastening tape (22) side. [4] A zipper (1) according to claim 1, wherein the first upper stopper (41) has a first rear portion (41b) formed on a lower side (D) of the first fastening tape (21), the first rear portion (41b) has a first rear upper surface (41b1) and a first rear portion side surface (41f) forming a side surface of the first rear portion (41b), and the rear surface (B) of the first rear portion side surface (41f) is formed as an inclined surface (41f1) along at least a part of a front end of the slider (7). [5] Zipper (1) according to claim 1, wherein the slider (7) comprises a body (71) and a pull tab (72) for pulling the body (71), the body (71) comprises an upper blade (71a), a lower blade (71b) and a guide column (71c) arranged to connect front portions of the upper blade (71a) and the lower blade (71b), the upper sheet (71a) comprises a first upper flange (71a1) extending from one end in the left-right direction (LR) to the lower side (D), and a second upper flange (71a2) extending from another end to the lower side (D), the lower sheet (71b) comprises a first lower flange (71b1) extending from one end in the left-right direction (LR) to the upper side (U), and a second lower flange (71b2) extending from the other end to the upper side (U), a front opening (81) at one end on the front side (F) defined by the upper sheet (71a), the lower sheet (71b) and the guide column (71c), a rear opening (82) at one end on the rear side (B) defined by the upper sheet (71a) and the lower sheet (71b), and a guide passage (83) defined by the upper sheet (71a), the lower sheet (71b), the guide column (71c), the first upper flange (71a1), the second upper flange (71a2), the first lower flange (71b1) and the second lower flange (71b2) are formed from the front opening (81) to the rear opening (82), and a width dimension of the first upper stop (41) in the left-right direction (LR) is greater than a width dimension of at least a portion of the guide passage (83) in the left-right direction (LR). [6] A top stop (4) used in a slide fastener (1) according to any one of claims 1 to 5.

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