One-piece pull tab

Patent metadata

Field	Value
Publication number	US-9862143-B2
Application number	US-201514969094-A
Country	US
Kind code	B2
Filing date	Dec 15, 2015
Priority date	Dec 15, 2015
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A pull tab for zippers is formed by a cord having a cord retaining member attached to one end of the cord and a plug attached to other end of the cord. The cord retaining member has an internal cavity, a first aperture on a proximal end next to the cord and a second aperture on a distal end. The cavity and first and second apertures are sized so that when the cord is wrapped around the plug, the plug fits through the second aperture and cavity but does not fit through the first aperture. The pull tab is assembled by feeding the plug through a zipper tab and then the first aperture, the cavity and the second aperture, wrapping the cord around the plug, and pulling the cord to force the plug with the cord wrapping back into the cavity.

First claim

What is claimed is:

1. A pull tab comprising:
a cord having a first end and a second end;
a cord retaining member having a proximal end attached to the first end of the cord, a distal end, a top surface, a bottom surface, a first aperture disposed on the proximal end of the cord retaining member, a second aperture disposed on the distal end, and an interior cavity extending through the cord retaining member between the first and second apertures; and
a plug attached to the second end of the cord, the plug being sized so that it fits through the first and second apertures and the cavity,
wherein the cavity and first and second apertures are sized so that when the cord is wrapped around the plug, the plug fits through the second aperture and cavity but does not fit through the first aperture, and
wherein the pull tab is assembled by feeding the plug through the first aperture, the cavity and the second aperture, wrapping the cord around the plug, and pulling the plug into the cavity.

2. The pull tab according to claim 1 , wherein the cord is a woven cord and the cord retaining member and securing device are molded onto the woven cord.

3. The pull tab according to claim 1 , wherein the plug has a groove extending around a circumference of the plug, and wherein the cord fits in the groove when wrapped around the plug.

4. The pull tab according to claim 1 , wherein the plug has a grooved or textured surface on at least one side.

5. The pull tab according to claim 1 wherein the cord retaining member has shoulders formed between the cavity and the first aperture, said shoulders forming an acute angle with a longitudinal sidewall of the cavity and creating points that embed into the cord when the plug is inserted into the cavity.

6. A method for assembling a pull tab, the pull tab comprising a cord having a first end and a second end, a cord retaining member having a proximal end attached to the first end of the cord, a distal end, a top surface, a bottom surface, a first aperture disposed on the proximal end of the cord retaining member, a second aperture disposed on the distal end, and an interior cavity extending through the cord retaining member between the first and second apertures, and a plug attached to the second end of the cord, the plug being sized so that it fits through the first and second apertures and the cavity, wherein the cavity and first and second apertures are sized so that when the cord is wrapped around the plug, the plug fits through the second aperture and cavity but does not fit through the first aperture, the method comprising the following steps:
feeding the plug through the first aperture, the cavity and the second aperture so that the plug extends through the distal end of the cord retaining member,
wrapping the cord around the plug; and
pulling the cord back through the first aperture until the plug is seated within the cavity.

7. The method according to claim 6 , wherein the plug has a groove extending around a circumference thereof, and wherein the step of wrapping comprises wrapping the cord around the groove in the plug.

Assignees

• Duraflex Hong Kong Ltd

Inventors

• Chen Te Chien

Classifications

• B29C65/56 Primary

  using mechanical means {or mechanical connections, e.g. form-fits} · CPC title

• A44B19/262 Primary

  Pull members; Ornamental attachments for sliders · CPC title

• B29L2005/00

  Elements of slide fasteners · CPC title

• B29L2031/727

  Fastening elements (bolts B29L2001/002; nuts B29L2001/005; screws B29L2001/007; slide fasteners B29L2005/00; buttons for haberdashery B29L2019/00) · CPC title

• B29C45/14819

  the inserts being completely encapsulated · CPC title