Buckles – buttons – clasps – etc. – Zipper or required component thereof – Including complementary – aligning means attached to ends of...
Reexamination Certificate
1999-05-06
2001-03-27
Sakran, Victor N. (Department: 3626)
Buckles, buttons, clasps, etc.
Zipper or required component thereof
Including complementary, aligning means attached to ends of...
C024S398000, C024S433000
Reexamination Certificate
active
06205626
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to bottom end attaching portions of fastener tapes and a slide fastener chain including the same wherein end portions of tapes are reinforced in two manners (i.e., strongly and weakly) in order to mount a box pin, a box, and an insert pin to end portions of the fastener tapes of the slide fastener of a separable type having a bottom end stop, thereby firmly fixing the bottom end stop and can be used for a long time.
2. Description of the Related Art
Conventionally, in this separable type of a slide fastener, there is a separable type of well known slide fastener, wherein attaching portions are formed for mounting the bottom end stop to end portions of fastener tapes by bonding narrow taffeta to the end portions of the fastener tapes to harden the entire tapes, so that the box pin, the box, and the insert pin can be mounted to the attaching portions at side edges of hardened fastener tapes.
As an improved bottom end stop attaching portions for the above separable type of slide fastener, as shown in
FIG. 6
, there are bottom end stop attaching portions as disclosed in Japanese Utility Model Laid-Open Publication No. 44-25842, wherein synthetic resin liquid is coated on end portions of tapes, or synthetic resin film is fused with the end portions of tapes, or taffeta is bonded to the end portions of tapes so as to harden one side edges or both side edges of the tapes to a great extent excluding sewing portions which are hardened to some extent. The box pin, the box, and the insert pin are mounted to this edge portions hardened to a great extent. By partly changing hardness of the fastener tapes, the bottom end stop can be firmly attached and the slide fastener can be easily attached and sewn.
As shown in
FIG. 7
, there are bottom end stop attaching portions of a slide fastener as disclosed in Japanese Utility Model Publication No. 56-25524, wherein synthetic resin film or auxiliary tape such as taffeta is bonded in two manners (i.e., strongly and weakly) to entire end portions of the fastener tapes to form at the bonded portions, stiff and flat strongly bonded portions and weakly bonded portions which are dotted and highly projecting as compared with the strongly bonded portions, in order to apply proper stiffness and strength to entire bottom end stop attaching portions, and to prevent bending, cracking, and the like of the bottom end stop attaching portions when using the slide fastener, and to prevent sewing yarn being cut by hardened reinforcing portions.
The bottom end stop attaching portions of the separable type of slide fasteners described above and shown in
FIGS. 6 and 7
, the strongly bonded portions and the weakly bonded portions formed in two manners (i.e., strongly and weakly) are formed at the bonded portions with reinforcing portions such as synthetic resin film and taffeta are bonded to faces of the tapes. However, in both of the above described the bottom end attaching portions, portions to which the box pin, the box, and the insert pin are attached are weakened by excessive pressurizing and heating, and by a twisting force caused when using the slider fastener, crack is made at attachment part of the box pin and the insert pin mounted to the reinforced portions to which the bottom end stop is attached such that separating and inserting operations can not be carried out smoothly.
SUMMARY OF THE INVENTION
The present invention has been accomplished with the above problems in view, and according to a first aspect of the invention, it is objected to provide bottom end stop attaching portions of fastener tapes wherein reinforcing tapes mounted to the bottom end stop attaching portions of the fastener tapes are fused by pressurizing heating means with high and low pressures to prevent attaching portions of a box pin, a box, and an insert pin from being weakened. Particularly, crack made at attachment part of the mounted box pin and the insert pin can be prevented while use. Furthermore, the box pin and the insert pin can be firmly mounted to the flexible attaching portions. Therefore, the bottom end stop attaching portions are durable and will not be damaged for a long time thus separating and inserting operations can be carried out smoothly.
According to a second aspect of the invention, in addition to the first aspect of the invention, it is objected to provide the bottom end stop attaching portions of the fastener tapes having core portions to which the box pin, the box, and the insert pin can be properly and easily mounted, by specifying a shape for fitting core threads forming the core portions to side edges of the fastener tapes.
According to a third aspect of the invention, in addition to the first and the second aspects of the invention, it is objected to provide the bottom end stop attaching portions of the fastener tapes, wherein reinforcing tapes are fused with end portions of the fastener tapes by the pressurizing heating means with high and low pressures so as to form a difference in thickness of the fastener tapes, i.e., to make the portion on the tape which is vicinity to the core portion (herein after call as vicinity portions) thick and tape main body portions thin. Thus, the box pin, the box, and the insert pin can be firmly attached, and the tape main body portions of the tapes facilitate the separating and inserting operations.
According to a fourth and a fifth aspects of the invention, in addition to any one of the first to third aspects of the invention, they are objected to provide the bottom end attaching portions of the fastener tapes, wherein bottom end stop which is suitable for various types of slide fasteners can be attached to the attaching portions, by specifying shapes of the core portions and the vicinity portions disposed at side edges of the fastener tapes.
According to a sixth aspect of the invention, in addition to any one of the first to fifth aspects of the invention, it is objected to provide the bottom end attaching portions of the fastener tapes, wherein surface of the reinforcing tapes excluding the core portions and the vicinity portions to which the bottom end stop is attached are coarsened to prevent slipperiness peculiar to thermoplastic resin, thereby facilitating the separating and inserting operations and sewing an article on to which the bottom end stop is attached.
According to seventh and eighth aspects of the invention, in addition to any one of the first to sixth aspects of the invention, they are objected to provide a slide fastener chain including the metal bottom end stop having the box pin, the box, and the insert pin which are made of metal, or the thermoplastic resin bottom end stop made having the box pin, the box, and the insert pin which are made of thermoplastic resin are crimped to the core portions and the vicinity portions formed at side edges of the fastener tapes.
To achieve the above objects, according to the invention stated the first aspect, there are provided the bottom end attaching portions of the fastener tapes comprising reinforcing tapes
14
with widths corresponding to the box pin
6
and the insert pin
7
are covered around the core portions
2
formed at one side edges of the fastener tapes
1
, and are fused with surfaces and rear faces of the tape main body portions
11
of the fastener tapes
1
, wherein thermoplastic elastomer film or thermoplastic resin film is used as the reinforcing tapes
14
, the reinforcing tapes
14
for wrapping the core portions
2
and the vicinity portions
3
are fuses with the fastener tapes
1
by pressurizing heating means with a low pressure, and the reinforcing tapes
14
disposed on the tape main body portions
11
are fused with the fastener tapes
1
by the pressurizing heating means with a high pressure so as to make the core portions
2
and the vicinity portions
3
flexible and to make the tape main body portions
11
stiff.
According to the invention stated in the second aspect, in addition to the structure of the invention stated in the first aspect, th
Kuse Kazuki
Watanabe Kozo
Hill & Simpson
Sakran Victor N.
YKK Corporation
LandOfFree
Bottom end stop attaching portions of fastener tapes and a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bottom end stop attaching portions of fastener tapes and a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bottom end stop attaching portions of fastener tapes and a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2438784