Buckles – buttons – clasps – etc. – Zipper or required component thereof – Slider having specific configuration – construction,...
Reexamination Certificate
2001-06-19
2002-12-24
Sandy, Robert J. (Department: 3677)
Buckles, buttons, clasps, etc.
Zipper or required component thereof
Slider having specific configuration, construction,...
C024S418000, C024S424000
Reexamination Certificate
active
06497016
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invent relates to a zipper slide for invisible zipper and, more particularly to an improved structure of zipper slide for invisible zipper, which is assembled fully automatically by a stamping machine to save labor cost.
FIG. 1
shows a zipper slide for invisible zipper according to the prior art. This structure of zipper slide
1
comprises a slide base
10
, a swivel hook plate
11
, a spring
12
, and a pull tab
13
. The hook plate
11
has a middle part pivoted to the slide base
10
by a rivet
111
. The pull tab
13
is coupled to one end of the hook plate
11
. The spring
12
is mounted in the slide base
1
and connected between a part of the slide base
1
and the one end of the hook plate
11
. This structure of zipper slide
1
is functional. However, because the hook plate
11
is pivotally connected to the slide base
10
by the rivet
111
, the assembly of the zipper slide consumes much labor and, cannot be achieved by a fully automatic machine.
SUMMARY OF THE INVENTION
The present invention has been accomplished to provide a zipper slide for invisible zipper, which eliminates the aforesaid drawback. It is the main object of the present invention to provide a zipper slide for invisible zipper, which is assembled fully automatically by a stamping machine to save labor consumption and to reduce the manufacturing cost. According to the present invention, the zipper slide for invisible zipper comprises a slide base having a longitudinally extended partition block and a recessed receiving chamber in the partition block, the recessed receiving chamber of the partition block comprising a hook hole, a receiving space, and a retaining portion, a hook plate mounted in a recessed receiving chamber in the partition block of the slide base, the hook plate having a hooked tip hooked in the hook hole of the partition bloc and a bottom butt positioned in the receiving space of the partition block, a spring element mounted in the slide base, the spring element having one end fastened to the retaining portion of the partition block and an opposite end pressed on a top face of the hook plate to hold down the hook plate in position, a locating plate fixedly fastened to the slide base, and a pull tab coupled to a hooked tip of the hook plate by a coupling ring. The slide base, the hook plate, the spring element and the connecting plate are fully automatically fastened together by a stamping machine.
REFERENCES:
patent: 4679281 (1987-07-01), Ishii et al.
patent: 5255418 (1993-10-01), Chen
patent: 5544394 (1996-08-01), Yaguramaki
patent: 5551129 (1996-09-01), Chu
patent: 5611121 (1997-03-01), Akeno et al.
patent: 5625927 (1997-05-01), Chu
patent: 5625928 (1997-05-01), Terada et al.
patent: 5771546 (1998-06-01), Minato
patent: 5809622 (1998-09-01), Yaguramaki
patent: 5864928 (1999-02-01), Matsushima
patent: 6314624 (2001-11-01), Lin
Jackson André L.
Sandy Robert J.
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