Title of Invention

AN IMPROVED ZIPPER SLIDE FOR ZIPPER

Abstract An improved zipper slide is constructed to include a slide base (20), a hook plate (30), a spring element (40), a locating plate (50) and a pull tab (60), the slide base (20) having a longitudinally extended partition block (22) and a recessed receiving chamber (23) in the partition block, the recessed receiving chamber having a hook hole (24), a first receiving space (25), a second receiving space (26) and a retaining portion (27) for the positioning of the hook plate (30) and the spring element (40), the pull tab (60) being coupled to the hook plate (30) by a coupling ring (62), the slide base (20), the hook plate (30), the spring element (40) and the connecting plate being fully automatically fastened together by an automatic stamping machine referring to Fig. 4.
Full Text BACKGROUND OF THE INVENTION
The present invention relates to an improved zipper slide for zipper and, more particularly to an improved structure of an improved zipper slide for zipper, which is assembled fully automatically by a stamping machine to save labour cost.
PRIOR ART
This structure of zipper slide according to the prior art comprises a slide base, a swivel hook plate pivoted to the slide base by a rivet , a spring mounted in the slide base and a pull tab coupled to one end of the hook plate. Wherein the spring is connected between a part of the slide base and the one end of the hook plate. This structure of zipper slide is functional by pulling up the pull tab, the pull tab lifts up the end of the hook plate, and the spring is pressed down thereby. The present invention provides an improved zipper slide comprising a slide base, a hook plate displaceably mounted in said slide base, a spring element mounted in said slide base to hold down said hook plate, a locating plate fixedly fastened to said slide base, a coupling ring coupled to a hook tip of said hook plate, and a pull tab coupled to said coupling ring. Wherein said coupling ring defines a hole through which the hooked tip of said hook plate passes.
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SUMMARY OF THE INVENTION
The present invention has been accomplished to provide an improved zipper slide for zipper, which eliminates the aforesaid drawback. It is the main object of the present invention to provide an improved zipper slide for zipper, which is assembled fully automatically by a stamping machine to save labour consumption and to reduce the manufacturing cost. According to the present invention, an improved zipper slide for zipper comprises of 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.
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BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig. 1 :is a sectional assembly view of a zipper slide for invisible zipper constructed according to the prior art.
Fig. 2 is an exploded view of a zipper slide for invisible zipper constructed according to the present invention.
Fig. 3 is an elevational assembly view of the zipper slide for invisible zipper according to the present invention.
Fig. 4 is a side view in section of FIG. 3.
Fig. 5 is a sectional view showing the action of the present invention (I).
Fig. 6 is a sectional view showing the action of the present invention (II).
Fig. 7 is a sectional view showing the action the present invention (III).
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Fig. 1 shows a zipper slide for 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 10 and connected between a part of the slide base 10 and the one end of the hook plate 11. This structure of the zipper
slide 10 is functional. However, because the hook plate 11 is
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pivotally connected to the slide base 10 by the rivet 111, the assembly of the zipper slide consumes much labour and, cannot be achieved by a fully automatic machine.
Referring to FIGS, from 2 through 4? an improved zipper slide 70 for zipper in accordance with the present invention is shown comprising a slide base 20, a hook plate 30, a spring element 40, a locating plate 50, and a pull tab 60. An automatic machine to save labour cost assembles the zipper slide 70.
The slide base 20 is made of metallic material, for example, aluminum alloy or zinc alloy, comprising two parallel guide ways 21, which receive the respective zipper tapes (not shown) and have a respective rear part disposed in communication with each other, and a longitudinally extended upright partition block 22, which separates the guide ways 21. The upright partition block 22 comprises a recessed receiving chamber 23, which receives the hook plate 30.
Referring to FIGS. From 2 through 4 again, the recessed receiving chamber 23 of the partition block 22 comprises a hook hole 24, a first receiving space 25, a second receiving space 26 disposed below the hook hole 24, and a retaining portion 27.
The hook plate 30 is made of metallic material, for example, aluminum ally or zinc alloy, comprising a hooked tip 31 extended from one end thereof and inserted and inserted through the hook hole 24 into the second receiving space 26 of the recessed receiving chamber 23 of the partition block 22 of the slide base 20, a bottom but 32 supported in the first receiving space 25 of the recessed receiving chamber 23 of the partition block 22 of the slide base 20
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(see FIG. 4), a bearing portion 33 extended from an opposite end thereof and stopped against a part of the peripheral wall of the first receiving space 25 of the recessed receiving chamber 23 of the partition block 22 of the slide base 20, and a top face 33 adapted to support the spring element 40.
The pull tab 60 is made of metallic material, for example, aluminum alloy or zinc alloy, having a knuckle 63 at its one end to which a coupling ring 62 is pivoted for coupling the pull tab 60 to the hooked tip 31 of the hook plate 30. The coupling ring 62 defines a hole 61 through which the hooked tip 31 of the hook plate 30 passes. As indicated in FIG. 3, the coupling ring 62 couples the pull tab 60 to the hook plate 30. Further, the pull tab 60 can be marked with a trademark or logo.
The spring element 40 may be variously shaped. According the preferred embodiment of the present invention, the spring element 40 is a flat spring plate. Alternatively, the spring element 40 can be a curved clamping plate or U-shaped spring plate. When installed, the spring element 40 has one end fixedly connected to the retaining portion 27 of the recessed receiving chamber 23 of the partition block 22, and the other end pressed on the top face 33 of the hook plate 30 to hold the hook plate 30 in position, keeping the hooked tip 31 of the hook plate 30 hooked in the hook hole 24 of the slide base 20 (see FIG. 4).
The locating plate 50 is made of metallic material, for example, aluminum alloy or zinc alloy, and fixedly fastened to the recessed receiving chamber 23 of the partition block 22 of the slide base 20 at a top side. The locating plate 50, the slide base 20, the spring element 40 and the hook plate 30 are fixedly fastened together by stamping
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(see FIG. 3).
Referring to FIGS. From 5 through 7, when pulling the pull tab 60 forwards, the bearing portion 33 is forced against the peripheral wall of the first receiving space 25 of the recessed receiving chamber 23 of the partition 22 of the slide base 20, the top face 34 of the hook plate 30 is stopped against one end of the locating plate 50, and the hooked tip 31 of the hook plate 30 is hooked in the hook hole 24, and therefore the slide base 20 is positively moved with the pull tab 60 relative to the zipper tapes being received in the guide ways 21. When stopped from pulling the pull tab 60, the spring power of the spring element 40 forces the hook plate 30 downwards, thereby causing the hooked tip 31 of the hook plate 30 to be engaged into the second receiving space 26 of the recessed receiving chamber 23 of the partition block 22 of the slide base 20 again.
According to the present invention, the slide base 20, the hook plate 30 and the spring element 40 are fastened together by stamping. Because the assembly process of the zipper slide 70 eliminates manual riveting, the manufacturing cost of the zipper slide 70 is low.
A prototype of zipper slide for zipper has been constructed with the features of FIGS. 2-7. The zipper slide for invisible zipper functions smoothly to provide all of the features discussed earlier.
Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
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WE CLAIM :
1. An improved zipper slide for zipper comprising:
a slide base (20), said slide base (20) having a longitudinally
extended upright partition block (22), said upright partition block
(22) comprising a recessed receiving chamber (23), said recessed
receiving chamber (23) comprising a hook hole (24), a receiving
space (25), and a retaining portion (27); ***« £*
a hook plate (30) displaceably mounted in said slide base (20), said hook plate (30) comprising a hooked tip (31) extended from t one end thereof and hooked in the hook hole (24) of said recessed receiving chamber (23) of said partition block (22) of said slide base (20), a bottom butt (32) disposed intermediate said hooked^, tip and supported in the receiving space (25) of said recessed receiving chamber (23) of said partition block (22) of said slide base (20), and a top face disposed at a top side of said hook plate (30), said bottom butt (32) forming a pivot about which said hook plate (30) rotates to displace said hooked tip (31) within hook hole
(24);
a spring element (40) mounted in said recessed receiving chamber (23) of said slide base (20) to hold down said hook plate (30), said spring element (40) having one end fixedly connected to said retaining portion (27) of said recessed receiving chamber (23) of said partition block (22) of said slide base (20) and an opposite end pressed on the top face of said hook plate (30) for holding said hook plate (30) within said recessed receiving chamber (23) and biasing said hook plate (30) to position said hooked tip (31) to extend through said hook hole (24);
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a locating plate (50) fixedly fastened to the recessed receiving chamber (23) of said partition block (22) of said slide base (20);
a coupling ring (62) coupled to the hooked tip (31) of said hook plate (30), said coupling ring (62) defining a hole (61) through which the hooked tip (31) of said hook plate (30) passes; and
a pull tab (60) coupled to the hole (61) of said coupling ring (62).
2. The zipper slide as claimed in claim 1 wherein said slide base
(20), said hook plate (30) and said spring element (40) are fastened
together by stamping.
3. The zipper slide as claimed in claim 1 wherein said slide base
(20) comprises two parallel guide ways (21) separated by said
partition block (22) and adapted to receive a respective zipper tape.
4. The zipper slide as claimed in claim 1 wherein said recessed
receiving chamber (23) of said partition block (22) of said slide
base (20) further comprises a receiving space (26) disposed
below and in communication with said hook hole (24) and adapted
to receive said hooked tip (31) of said hook plate (30).
5. The zipper slide as claimed in claim 1 wherein said spring
element (40) is a flat spring plate.
6. The zipper slide as claimed in claim 1 wherein said spring
element (40) is a curved clamping plate.
7. The zipper slide as claimed in claim 1 wherein said spring
element (41)) is a U-shaped spring plate.
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8, The zipper slide as claimed in claim 1 wherein said pull tab (60) has one end terminating in a knuckle (63) coupled to said coupling ring (62).
Dated this 20th day of August, 2001

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An improved zipper slide is constructed to include a slide base (20), a hook plate (30), a spring element (40), a locating plate (50) and a pull tab (60), the slide base (20) having a longitudinally extended partition block (22) and a recessed receiving chamber (23) in the partition block, the recessed receiving chamber having a hook hole (24), a first receiving space (25), a second receiving space (26) and a retaining portion (27) for the positioning of the hook plate (30) and the spring element (40), the pull tab (60) being coupled to the hook plate (30) by a coupling ring (62), the slide base (20), the hook plate (30), the spring element (40) and the connecting plate being fully automatically fastened together by an automatic stamping machine referring to Fig. 4.

Documents:

00453-cal-2001-abstract.pdf

00453-cal-2001-claims.pdf

00453-cal-2001-correspondence.pdf

00453-cal-2001-description(complete).pdf

00453-cal-2001-drawings.pdf

00453-cal-2001-form-1.pdf

00453-cal-2001-form-18.pdf

00453-cal-2001-form-2.pdf

00453-cal-2001-form-3.pdf

00453-cal-2001-form-5.pdf

00453-cal-2001-p.a.pdf

453-cal-2001-granted-abstract.pdf

453-cal-2001-granted-claims.pdf

453-cal-2001-granted-correspondence.pdf

453-cal-2001-granted-description (complete).pdf

453-cal-2001-granted-drawings.pdf

453-cal-2001-granted-examination report.pdf

453-cal-2001-granted-form 1.pdf

453-cal-2001-granted-form 18.pdf

453-cal-2001-granted-form 2.pdf

453-cal-2001-granted-form 3.pdf

453-cal-2001-granted-form 5.pdf

453-cal-2001-granted-letter patent.pdf

453-cal-2001-granted-pa.pdf

453-cal-2001-granted-specification.pdf


Patent Number 195515
Indian Patent Application Number 453/CAL/2001
PG Journal Number 30/2009
Publication Date 24-Jul-2009
Grant Date 25-Nov-2005
Date of Filing 20-Aug-2001
Name of Patentee CHUNG CHWAN ENTERPRISE CO. LTD.
Applicant Address 151, KUNG ERH RD., WU LIN TSUEN, LUNG TAN HSIANG, TAO YUAN HSIEN
Inventors:
# Inventor's Name Inventor's Address
1 LIN YU-PAU 151, KUNG ERH RD., WU LIN TSUEN, LUNG TAN HSIANG, TAO YUAN HSIEN
PCT International Classification Number A44B 19/26
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 NA