Separable bottom end stop for slide fastener

Patent metadata

Field	Value
Publication number	US-12150526-B2
Application number	US-202018033011-A
Country	US
Kind code	B2
Filing date	Oct 28, 2020
Priority date	Oct 28, 2020
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A separable bottom end stop for a reverse opening-type slide fastener, in which left and right element rows of left and right fastener stringers can be opened from an upper end and a lower end, the slide fastener includes a lower slider for opening the left and right element rows from the lower end, the lower slider includes a locking claw, which is elastically biased to a protruded position protruding into an element guide path of the lower slider, an insert pin connected to the lower end of one of the left and right element rows, and a box pin connected to the lower end of the other of the left and right element rows. At least one of the box pin and the insert pin includes a release groove capable of receiving the locking claw on a side surface opposing to the other side surface.

First claim

The invention claimed is:

1. A separable bottom end stop for a reverse opening-type slide fastener ( 100 ), in which left and right element rows ( 12 ) of left and right fastener stringers ( 10 ) can be opened from an upper end and a lower end, the slide fastener ( 100 ) comprising:
a lower slider ( 30 ) for opening the left and right element rows ( 12 ) from the lower end, the lower slider ( 30 ) including a locking claw ( 40 ), which is elastically biased to a protruded position protruding into an element guide path ( 34 ) of the lower slider ( 30 );
an insert pin ( 50 ) connected to the lower end of one of the left and right element rows ( 12 ); and
a box pin ( 60 ) connected to the lower end of the other of the left and right element rows ( 12 ),
wherein at least one of the box pin ( 60 ) and the insert pin ( 50 ) includes a release groove ( 63 ) capable of receiving the locking claw ( 40 ) on a side surface ( 62 ) opposing to the other side surface,
wherein at least one of the box pin ( 60 ) and the insert pin ( 50 ) includes a protruded piece ( 66 ) protruding from one side surface ( 62 ) toward the other side surface ( 51 ), the side surfaces ( 62 , 51 ) being opposing to each other,
wherein the release groove ( 63 ) extends upward at least to a lower end of the protruded piece ( 66 ), and
wherein the release groove ( 63 ) includes a guide face ( 65 b ) as an inclined groove side face, which extends obliquely upward in a longitudinal direction and toward a front side in a front-and-back direction.

2. The separable bottom end stop for the reverse opening-type slide fastener according to claim 1 , wherein the release groove ( 63 ) includes a release portion ( 63 a ), which receives most, in a left-and-right width direction, the locking claw ( 40 ) at the protruded position, and wherein the release portion ( 63 a ) is arranged upward relative to the locking claw ( 40 ) of the lower slider ( 30 ) at a lower end position.

3. The separable bottom end stop for the reverse opening-type slide fastener according to claim 1 , wherein the guide face ( 65 b ) is capable of guiding the locking claw ( 40 ) from the protruded position to a retracted position retracted from the element guide path ( 34 ).

4. The separable bottom end stop for the reverse opening-type slide fastener according to claim 1 , wherein a depth of the release groove ( 63 ) in a left-and-right width direction increases from a lower side to an upper side.

5. The separable bottom end stop for the reverse opening-type slide fastener according to claim 1 , wherein the release groove ( 63 ) includes an inclined groove bottom face ( 64 ) inclined so as to be gradually spaced relative to the locking claw ( 40 ) at the protruded position in a left-and-right width direction from a lower blade plate ( 32 ) side to an upper blade plate ( 31 ) side of the lower slider ( 30 ).

6. The separable bottom end stop for the reverse opening-type slide fastener according to claim 1 , wherein only the box pin ( 60 ) includes the release groove ( 63 ).

7. A separable bottom end stop for a reverse opening-type slide fastener ( 100 ), in which left and right element rows ( 12 ) of left and right fastener stringers ( 10 ) can be opened from an upper end and a lower end, the slide fastener ( 100 ) comprising:
a lower slider ( 30 ) for opening the left and right element rows ( 12 ) from the lower end, the lower slider ( 30 ) including a locking claw ( 40 ), which is elastically biased to a protruded position protruding into an element guide path ( 34 ) of the lower slider ( 30 );
an insert pin ( 50 ) connected to the lower end of one of the left and right element rows ( 12 ); and
a box pin ( 60 ) connected to the lower end of the other of the left and right element rows ( 12 ),
wherein at least one of the box pin ( 60 ) and the insert pin ( 50 ) includes a release groove ( 63 ) on a side surface ( 62 ) opposing to the other side surface, which is capable of partially receiving the locking claw ( 40 ) at a time when upper ends of the box pin ( 60 ) and the insert pin ( 50 ) become housed in the lower slider ( 30 ) through a rear opening ( 34 a ), when the lower slider ( 30 ) is pulled upward from its lower end position to a first element split position at which lower end first elements ( 12 b ) are split, and
wherein the release groove ( 63 ) includes a guide face ( 65 b ) as an inclined groove side face, which extends obliquely upward in a longitudinal direction and toward a front side in a front-and-back direction.

8. The separable bottom end stop for the reverse opening-type slide fastener according to claim 2 , wherein the release groove ( 63 ) includes a release portion ( 63 a ), which receives most, in a left-and-right width direction, the locking claw ( 40 ) at the protruded position, and wherein the release portion ( 63 a ) is arranged upward relative to the locking claw ( 40 ) of the lower slider ( 30 ) at the lower end position.

9. The separable bottom end stop for the reverse opening-type slide fastener according to claim 2 , wherein the guide face ( 65 b ) is capable of guiding the locking claw ( 40 ) from the protruded position to a retracted position retracted from the element guide path ( 34 ).

10. The separable bottom end stop for the reverse opening-type slide fastener according to claim 2 , wherein a depth of the release groove ( 63 ) in a left-and-right width direction increases from a lower side to an upper side.

11. The separable bottom end stop for the reverse opening-type slide fastener according to claim 2 , wherein the release groove ( 63 ) includes an inclined groove bottom face ( 64 ) inclined so as to be gradually spaced relative to the locking claw ( 40 ) at the protruded position in a left-and-right width direction from a lower blade plate ( 32 ) side to an upper blade plate ( 31 ) side of the lower slider ( 30 ).

12. The separable bottom end stop for the reverse opening-type slide fastener according to claim 2 , wherein only the box pin ( 60 ) includes the release groove ( 63 ).

Assignees

• Ykk Corp

Inventors

• Chayahara Yuki

Classifications

• A44B19/306

  in the form of a locking spring member actuated by the pull member · CPC title

• A44B19/36 Primary

  Means for permanently uniting the stringers at the end; Means for stopping movement of slider at the end · CPC title

• A44B19/382 Primary

  "Two-way" or "double-acting" separable slide fasteners · CPC title