Buckles – buttons – clasps – etc. – Zipper or required component thereof – Slider having specific configuration – construction,...
Reexamination Certificate
2001-06-19
2003-01-28
Sandy, Robert J. (Department: 3677)
Buckles, buttons, clasps, etc.
Zipper or required component thereof
Slider having specific configuration, construction,...
C024S419000, C024S424000
Reexamination Certificate
active
06510594
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invent relates to invisible zippers and, more specifically to a zipper slide for invisible zipper, which can easily be assembled by an automatic machine.
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 can be assembled by an automatic machine to save labor 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, a hook plate mounted in a recessed receiving chamber in the partition block of the slide base, a spring element mounted in the slide base and pressed on 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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