Slider for a slide fastener

Patent metadata

Field	Value
Publication number	US-12465120-B2
Application number	US-202418610194-A
Country	US
Kind code	B2
Filing date	Mar 19, 2024
Priority date	Mar 24, 2023
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A slider for a slide fastener includes a slider body (11) and two pullers (20, 21) pivotally attached to the slider body (11). The slider body (11) forms an upper wing (12), a lower wing (13), a connecting post (14) connecting the upper and lower wings, and side flanges (15). The side flanges protrude from side edges of the upper and lower wings towards a geometrical mid-plane (P) that lies between the wings (12, 13), so as to form a Y-shaped channel (19) between the upper and lower wings. The upper wing (12) and the lower wing (13) have respective opposite outer surfaces (23, 24) which are substantially flat, and are symmetrical with respect to the geometrical mid-plane (P). At least one locking protrusion (30) protrudes inwardly into the Y-shaped channel (19) from at least one of the side flanges (15) of the slider body (11).

First claim

What is claimed is:

1 . A slider for a slide fastener, the slider comprising:
a slider body ( 11 ) forming an upper wing ( 12 ), a lower wing ( 13 ), a connecting post ( 14 ) connecting the upper and lower wings, side flanges ( 15 ) protruding from side edges of the upper wing and side edges of the lower wing towards a geometrical mid-plane (P) that lies between the wings ( 12 , 13 ), so as to form a Y-shaped channel ( 19 ) between the upper and lower wings, wherein the upper wing ( 12 ) and the lower wing ( 13 ) have respective opposite outer surfaces ( 23 , 24 ) and are symmetrical with respect to said geometrical mid-plane (P); two pullers ( 20 , 21 ) pivotally attached to the slider body ( 11 ); at least one locking protrusion ( 30 ) protruding inwardly into the Y-shaped channel ( 19 ) from at least one of the side flanges ( 15 ) of the slider body ( 11 ).

2 . The slider according to claim 1 , wherein the outer surfaces ( 23 , 24 ) of the wings ( 12 , 13 ) are flat.

3 . The slider according to claim 1 , wherein the outer surfaces ( 23 , 24 ) of the wings ( 12 , 13 ) are parallel to each other.

4 . The slider according to claim 1 , wherein each wing ( 12 , 13 ) forms a respective pair of transversally protruding opposite puller attachment portions ( 25 , 26 ; 27 , 28 ) for pivotally mounting each puller ( 20 , 21 ) to the slider body ( 11 ) about a respective transversal pivotal axis.

5 . The slider according to claim 4 , wherein the puller attachment portions ( 25 , 26 ; 27 , 28 ) are shaped as pins, wherein each pin protrudes transversally outwardly from one side of one of the wings.

6 . The slider according to claim 4 , wherein the two pairs of puller attachment portions ( 25 - 28 ) are arranged symmetrically with respect to said geometrical mid-plane (P).

7 . The slider according to claim 4 , wherein
each puller ( 20 , 21 ) forms a respective pair of right and left legs ( 35 , 36 ; 37 , 38 ), each of which have a respective end portion pivotally mounted to a respective one of said puller attachment portions ( 25 , 26 ; 27 , 28 ), and wherein said legs ( 35 , 36 ; 37 , 38 ) each are longer than a distance from the puller attachment portions ( 25 , 26 ; 27 , 28 ) to a tail end of the slider body ( 11 ), whereby the pullers ( 20 , 21 ) can be turned and laid to be flush with a respective one of the outer surfaces ( 23 , 24 ) of the slider body ( 11 ), thereby allowing the slider body and the pullers to take a flattened shape.

8 . The slider according to claim 4 , wherein the puller attachment portions ( 25 - 28 ) are each located at equal distances from a front end and a back end of the slider body ( 11 ).

9 . The slider according to claim 4 , wherein the Y-shaped channel ( 19 ) has a single mouth ( 16 ) at a tail end of the slider opposite to a head end where the connecting post ( 14 ) is arranged, and two mouths ( 17 , 18 ) at the head end, each formed between the connecting post ( 14 ), the upper wing ( 12 ) and the lower wing ( 13 ) and the respective side flanges ( 15 ), wherein said at least one locking protrusion ( 30 ) projects inwardly from one side flange ( 15 ) into at least one of the mouths ( 17 , 18 ) at the head end of the slider body ( 11 ).

10 . The slider according to claim 9 , wherein at least two locking protrusions ( 30 ) are provided by the slider body, each locking protrusion protruding inwardly into a respective one of the two mouths ( 17 , 18 ) at the head end of the slider body ( 11 ).

11 . The slider according to claim 10 , wherein the at least two locking protrusions ( 30 ) are formed by a same one of at least one of the two wings ( 12 , 13 ).

12 . The slider according to claim 10 , wherein two pairs of locking protrusions ( 30 ) are provided, of which
a first pair of locking protrusions is formed by the upper wing ( 12 ), each locking protrusion protruding inwardly into a respective one of the two mouths ( 17 , 18 ) at the head end of the slider body ( 11 ), a second pair of locking protrusions is formed by the lower wing ( 13 ), each locking protrusion protruding inwardly into a respective one of the two mouths ( 17 , 18 ) at the head end of the slider body ( 11 ).

13 . The slider according to claim 10 , wherein said at least one locking protrusion ( 30 ) has a vertical height which is shorter than a vertical height of the side flange from which the at least one locking protrusion protrudes.

14 . The slider according to claim 10 , wherein said at least one locking protrusion ( 30 ) extends forming an obtuse angle with the side flange ( 15 ) from which the at least one locking protrusion protrudes.

15 . The slider according to claim 10 , wherein said at least one locking protrusion ( 30 ) extends in a direction that is parallel to a side edge of a wing of the wings that is close to the at least one locking protrusion.

16 . The slider according to claim 12 , wherein the at least two locking protrusions ( 30 ) are arranged adjacent to the puller attachment portions ( 25 - 28 ).

17 . The slider according to claim 1 , wherein the outer surfaces ( 23 , 24 ) of the wings ( 12 , 13 ) are convex.

18 . The slider according to claim 1 , wherein the outer surfaces ( 23 , 24 ) of the wings ( 12 , 13 ) are concave.

Assignees

• Ykk Corp

Inventors

• Honda Shinya

Classifications

• A44B19/30

  with means for locking in position · CPC title

• A44B19/303

  Self-locking sliders, e.g. slider body provided with locking projection or groove, friction means · CPC title

• A44B19/26

  Sliders · CPC title

• A44B19/262 Primary

  Pull members; Ornamental attachments for sliders · CPC title