# US 4,397,454 A · Device for holding a slider for a slide fastener

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- Number: US 4,397,454 A
- Document ID: US4397454A
- Status: Granted
- Kind: A
- Application number: 06/366,360
- Filed: 1982-04-07
- Granted: 1983-08-09
- Earliest claimed: 1981-04-11
- Assignees: Yoshida Kogyo K. K.
- Inventors: Toshiaki Nakagawa
- Web page: https://patentgrep.com/patent/US4397454A

## CPC

- A44B 19/64: Slider holders for assemblage of slide fasteners
- Y10S 269/909: Work holder for specific work
- Y10T 29/533: Means to assemble slider onto stringer
- A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A device for holding a slider in position during threading onto a slide fastener chain includes a housing having a support surface for supporting thereon a slider body upside down, and a slit receptive of a pull tab hanging from the slider body. A lever has a pair of juxtaposed first and second arms disposed one on each side of the slit, there being on the first arm a locking projection movable into and out of the slit. The lever is pivotable in the housing between a slider-holding position and a slider-release position. The second arm extends beyond the first arm to such an extent that as the slider is placed on the support surface, the second arm is pressed downwardly by a yoke of the slider to cause the lever to be pivotally moved to the slider-holding position. When a reverse or upward pull is exerted on the slider during the threading of the fastener chain through the slider, the second arm is brought into contact with the slider body, thus preventing the lever from being pivotally moved to the slider-release position.

## Claims

### Claim 1

A device for holding a slider in position for threading onto a slide fastener chain, the slider including a slider body, a yoke mounted on the slider body, and a pull tab pivotally connected to the yoke and having an opening, said device comprising:
(a) a housing having a horizontal support surface for supporting thereon the slider body upside down, and a vertical slit opening into said support surface for receiving the pull tab hanging from the slider body supported on said support surface;
(b) a lever pivotally mounted in said housing and having a pair of juxtaposed arms disposed one on each side of said slit, one of said arms having a locking projection extending toward and terminating short of the other arm, said lever being pivotable between a slider-holding position in which said locking projection projects into said slit for engagement with an edge of the opening of the pull tab, and a slider-release position in which said locking projection is retracted out of said slit for releasing the pull tab, said other arm extending beyond said one arm to such an extent that as the slider is placed on said support surface, said other arm is pressed downwardly by the yoke of the slider to cause said lever to be pivotally moved from said slider-release position to said slider-holding position; and
(c) means urging said lever to either said slider-holding position or said slider-release position.

### Claim 2 (depends on 1)

A device according to claim 1, said other arm, as said lever is in said slider-release position, projecting beyond said support surface.

### Claim 3 (depends on 1)

A device according to claim 1, said other arm having an outwardly inclined surface engageable with the yoke of the slider when the latter is placed on said support surface.