Element, fastener stringer, and slide fastener

Patent metadata

Field	Value
Publication number	US-10765178-B2
Application number	US-201716327360-A
Country	US
Kind code	B2
Filing date	Mar 16, 2017
Priority date	Aug 23, 2016
Publication date	Sep 8, 2020
Grant date	Sep 8, 2020

Abstract

An element is configured to be installed together with a tape to form a fastener stringer, and includes: a main body including an upper main body and a lower main body; an installing portion for installing the tape; a head; and a neck connecting the main body and the head, wherein at least one of the upper main body and the lower main body includes a convex portion and a base portion, the convex portion protrudes from the base portion and extends in the left-right direction at an intermediate position in the front-rear direction. An inclined portion inclined downward along the left-right direction is formed on at least one side of the head along the upper-lower direction, and protrusions extending in the front-rear direction are formed on both sides of the convex portion.

First claim

The invention claimed is:

1. An element configured to be installed together with a tape to form a fastener stringer, the element comprising:
a main body including an upper main body and a lower main body;
an installing portion for installing the tape;
a head; and
a neck connecting the main body and the head,
wherein, when a front-rear direction of the element is defined by a longitudinal direction of the fastener stringer, a left-right direction of the element is defined by a width direction of the fastener stringer, and an upper-lower direction of the element is defined by a thickness direction of the fastener stringer, at least one of the upper main body and the lower main body includes a convex portion and a base portion, and the convex portion protrudes from the base portion and extends in the left-right direction at an intermediate position in the front-rear direction,
wherein protrusions extending in the front-rear direction are formed on both sides of the convex portion, and
wherein center lines of the protrusions along the front-rear direction coincide with a center line of the installing portion along the front-rear direction, in the upper-lower direction.

2. The element according to claim 1 , wherein a dimension of the convex portion that occupies the base portion in the front-rear direction is 30% to 40% of a dimension of the base portion in the front-rear direction.

3. The element according to claim 2 , wherein the dimension of the convex portion that occupies the base portion in the front-rear direction is ⅓ of the dimension of the base portion in the front-rear direction.

4. The element according to claim 1 , wherein an inclined portion inclined downward along the left-right direction is formed on at least one side of the head in the upper-lower direction.

5. The element according to claim 1 , wherein a height of the protrusions in the upper-lower direction is at least ½ of a height of the convex portion in the upper-lower direction.

6. The element according to claim 1 , wherein a dimension of the protrusions in the left-right direction is no less than a dimension of the installing portion along the left-right direction.

7. A fastener stringer manufactured by using a plurality of the elements according claim 1 .

8. A slide fastener assembled by a slider and the fastener stringer according to claim 7 , wherein
the slider includes a pull tab and a stopping pawl,
the pull tab can be raised and lowered, and
when the pull tab is lowered, the stopping pawl is located between two of the elements.

Assignees

• Ykk Corp

Inventors

• Takani Go

Classifications

• A44B19/42

  Making by processes not fully provided for in one other class, e.g. B21D53/50, B21F45/18, B22D17/16, B29D5/00 {(attaching closure devices, e.g. slide fasteners, to bags B31B70/813; making package opening by applying or incorporating profile strips, e.g. for reclosable bags B65B61/188)} · CPC title

• A44B19/06

  with substantially rectangular members having interlocking projections and pieces · CPC title

• A44B19/02

  with a series of separate interlocking members secured to each stringer tape · CPC title

• A44B19/30 Primary

  with means for locking in position · CPC title

• A44B19/24 Primary

  Details · CPC title