U.S. patent number 3,708,837 [Application Number 05/036,750] was granted by the patent office on 1973-01-09 for an improved fabric fastener.
This patent grant is currently assigned to Kanebo, Ltd.. Invention is credited to Yoshio Chiba.
United States Patent |
3,708,837 |
Chiba |
January 9, 1973 |
AN IMPROVED FABRIC FASTENER
Abstract
The fabric fastener comprising two cloths adapted to engage with
each other, wherein one of them is provided with the numerous
mushroom engaging sections on its surface, while the other one is a
two-ply cloth composed of two pieces of cloth combined by
connecting strings and one of these two pieces is made to have
numerous meshes in its surface.
Inventors: |
Chiba; Yoshio (Osaka,
JA) |
Assignee: |
Kanebo, Ltd. (Tokyo,
JA)
|
Family
ID: |
21890423 |
Appl.
No.: |
05/036,750 |
Filed: |
May 13, 1970 |
Current U.S.
Class: |
24/450 |
Current CPC
Class: |
A44B
18/0023 (20130101); Y10T 24/2775 (20150115) |
Current International
Class: |
A44B
18/00 (20060101); A44b 017/00 () |
Field of
Search: |
;24/204,21V |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
246,968 |
|
Nov 1960 |
|
AU |
|
1,140,576 |
|
Jan 1969 |
|
GB |
|
310,284 |
|
Apr 1969 |
|
SW |
|
Primary Examiner: Gelak; Bernard A.
Claims
What is claimed:
1. Fabric fastener characterized by two cloths adapted to overlie
and be attached to each other, a first said cloth having on its
surface a plurality of upstanding mushroom-shaped filaments having
mushroom heads connected by spinescent strings to said first cloth,
and a second said cloth comprising a base fabric and an open mesh
fabric having a plurality of meshes overlying and spaced from said
base fabric by means of a multiplicity of connecting filaments
connected to both said base fabric and said open mesh fabric and
extending substantially perpendicularly therebetween to form a gap
between said fabrics, the meshes being of such a size so that the
mushroom heads of said first cloth are adapted to be forced at an
angle through the meshes of said second cloth to be disposed in
said gap and resist outward movement through said meshes by reason
of the substantially flat underside of said mushroom heads.
Description
The present invention relates to an improved fabric fastener and,
more particularly, to a fabric fastener wherein synthetic
thermoplastic piles made of nylon, for instance, are first woven
into a piece of cloth and the tips of said piles are cut separate
in order to form spinescent filaments, which can be made also by
cutting the connecting filaments or strings of two-ply cloth in
their center, and which are then thermally melted to form mushroom
engaging sections to be forced into the meshes of the other piece
of cloth which is an ordinary two ply cloth, so that these two
pieces of cloth can be easily fastened with each other.
In the conventional fastening device of two pieces of cloth, said
mushroom engaging sections are forced into the meshes of the
one-ply cloth. However, when fixing such a one ply cloth to any
ordinary clothing by pasting or sewing it thereto, there must be a
gap between said one-ply cloth and the clothing, whereinto said
mushroom engaging sections can be forced to enter. But, such a gap
cannot be easily formed between them. Hence, it is very difficult
to manufacture this kind of fastener according to the conventional
method.
In view of the above-mentioned shortcoming of the conventional
fastener, the fastener of the present invention uses two-ply cloths
having an appropriate gap between them which are held together by
means of connecting filaments or strings. One ply of the two-ply
cloth is fixed to the clothing, while the other one is applied to
the surface of the cloth to which the two-ply cloth is to be
fastened.
For a more detailed description of the invention, reference will
now be made to the accompanying drawings which illustrate one of
the embodying examples of the invention, as follows:
FIG. 1 is a side view of the single side piled fabric.
FIG. 2 is a schematic side view of the fabric when the tips of its
piles are cut separate.
FIG. 3 illustrates how the connecting filaments or strings of the
two ply cloth are cut separate in their center to form two pieces
of cloth.
FIG. 4 illustrates the piece of cloth provided with mushroom
engaging sections.
FIG. 5 illustrates the equipment to transform the cloth of FIG. 2
into the one illustrated in FIG. 4.
FIG. 6 is a side view of the fastened condition of the two
fastening fabrics.
FIG. 7 is a section taken along the line I -- I of FIG. 6.
The piled fabric which is shown in FIG. 1, and which is the base
for forming the engaging sections on one ply of the two ply cloth,
is made of the woof 1 and the warp 2 as well as the pile filament
3. In comparison with a comparatively soft piece of cloth 1.2, said
pile filament 3 is made of a very elastic synthetic thermoplastic
resin such as nylon. After weaving the piled filament 3 together
with said woof 1 and the warp 2, their looped tips are cut separate
by an edged tool so as to produce numerous spinescent filaments 3
on one of the surfaces of the piece of cloth 1.2 as shown in FIG.
2. We can also form numerous spinescent filaments 3 on the surface
of said piece of cloth 1.2 by cutting separate the connecting
filaments or strings of two pieces of cloth 1.2 and 1.2 of the two
ply cloth in their center by the use of a knife 10 as shown in FIG.
3. After that, by thermally melting the tips of said spinescent
filaments 3 made of synthetic thermoplastic resin, the mush-room
engaging sections 4 can be formed at the tips of spinescent
filaments 3 as shown in FIG. 4. One of the concrete examples of the
apparatus to form said mushroom engaging sections 4 is shown by
FIG. 5, wherein the piece of cloth 1.2 is fed at a fixed speed into
the machine by a pair of the rollers 11 and 12, while the tips of
said spinescent filaments 3 formed on one side of said piece of
cloth 1.2 are heated by means of the heater 13 so as to melt them.
It is desirous that the said piece of cloth 1.2 is sent through the
water or a water soluble starchy material, so that the surface of
said piece of cloth 1.2 may be protected by a liquid film from
being burnt up by the heat of the heater 13.
On the other hand, the structure of cloth for engaging the
afore-said piece of cloth 1.2 is just the same as an ordinary two
ply cloth, as shown in FIGS. 6 and 7. It is composed of two pieces
of cloth 8 woven with the woof 6 and the warp 7, and 9 woven with
woof 16 and warp 17. The cloths 8 and 9 overlie one over the other,
and are held together by means of the connecting filament 15 all
over the piled area, so that a two ply cloth having an appropriate
gap between the pieces of cloth 8 and 9 is formed. Beside, it is
necessary to make said connecting filament 15 elastic enough to
prevent both pieces of cloth 8 and 9 from adhering closely with
each other and annihilating the necessary gap. It is inevitable
therefore that numerous meshes 5 are formed in the piece of cloth
8.
When the surface of the above-mentioned piece of the two ply fabric
is piled on that of the piece of cloth 1.2 having the mushroom
engaging sections 4 and then pressed together, the spinescent
strings 3 on the surface of the said cloth 1.2 will be forced to
enter into the respective meshes 5 of one ply 8 of the two ply
cloth, so that the mushroom engaging sections 4 will act to engage
with said piece of cloth 8, as shown by FIGS. 6 and 7. The
engagement of both pieces of cloth is tight enough to prevent them
from being easily separated. But, whenever necessary, they can be
separated conveniently by hand from each other.
Since the two ply cloth is used as one of the engaging sections in
the present invention, the surface of its one piece will be fixed
to the clothes and the like, while the other piece can be held up
above the surface of the clothes, so that into the meshes of the
held up piece of cloth can be pushed the mushroom engaging sections
in such a manner that the mushroom sections can be engaged with the
meshes far more steadily than the conventional fabric fasteners.
Furthermore, such a fabric fastener according to the invention can
be readily manufactured without taking much time.
While preferred embodiments have been described above in detail, it
will be understood that numerous modifications might be resorted to
without departing from the scope of the invention as defined in the
following claim:
* * * * *