Abstrict A bra structure with an arcuate steel wire placed inside a groove
channel at a bottom rim of a breast cup of the bra. The top and
bottom portions of the steel wire are affixed by a foam which is
adhered by a patch fabric. When the bra is assembled with a die
casting machine to mold twice at a high temperature, the steel wire
is completely fixed inside the groove channel of the breast cup.
This not only saves manufacturing labor time, but also allows the
steel wire to entirely and closely affix to the breast cup to more
completely support the breast shape.
Claims What is claimed is:
1. A method of manufacturing breast cups of a bra comprising the
following steps: a) adhering a piece of patch fabric to a first
side of a piece of foam; b) cutting said piece of foam with the
adhered patch fabric into at least a first block and a second block;
c) positioning said first block so that the side of said first block
with the adhered patch fabric is facing downward; d) using a die
casting machine to mold said first block at a high temperature so
that a pair of breast cups are formed, each said breast cup having
a receiving groove formed at a periphery thereof; e) placing steel
wires into said receiving grooves of said breast cups; f) positioning
said second block so that the side of said second block with the
adhered patch fabric is facing upward, with said second block covering
said steel wires; g) placing said first block and said second block
into said die casting machine at a high temperature to complete
the molding of said breast cups; and h) cutting the molded foam
breast cups along side lines to remove them from said blocks.
Description BACKGROUND OF THE INVENTION
1) Field of the Invention
The present invention relates to a bra structure, and more particularly
to a bra with a steel wire being fixed onto a groove channel of
a breast cup when a die casting machine molds the breast cup at
a high temperature twice; the outer rim of the breast cup requires
no additional seaming of a bent tube for inserting the steel wire
so as to not only save the labor time and cost for manufacturing,
but also improve the appearance of the entire bra.
2) Description of the Prior Art
Accordingly, a traditional bra, as indicated in FIG. 7 has a ring-shaped
bent tube (20) seamed respectively on lower cup rims (101) of two
breast cups (10); the bent tube (20) has a steel wire (30) inserted
therein; a tube opening (201) of the bent tube (20) is seamed to
make the steel wire (30) support on the lower rim of the breast
cup (10) thereby eliminating the breast shape of the bra to deform
due to insufficient firmness.
However, the abovementioned conventional bra has the following
drawbacks: 1. It is necessary to seam the bent tube (20) onto the
lower cup rim (101) of the breast cup (10) for inserting the steel
wire (30); therefore, it takes extra seaming labor and time for
mass producing the bra thereby increasing the manufacturing cost.
2. For facilitating the seaming of the tube opening (201) of the
bent tube (20), the steel wire (30) inserted inside the bent tube
(20) does not fill in the entire bent tube (20) completely. Therefore,
the tube opening (201) areas at two ends of the bent tubes (20)
have no supporting function and that causes the support of the breast
shape of the bra become incomplete. 3. The bent tube (20) seamed
on the lower cup rim (101) of the breast cup (10) destroys the entire
external view and aesthetic of the bra.
SUMMARY OF THE INVENTION
Therefore, the primary objective of the present invention is to
position two steel wires inside two breast cups of a bra into two
groove channels at lower rims of the breast cups through using a
die casting machine to mold at a high temperature twice without
seaming and inserting for fixing so as to save the labor time and
cost for manufacture and to enable the steel wires affixed closely
to the breast cups to support the breast shape of the bra more completely.
To enable a further understanding of the structural features and
the technical contents of the present invention, the brief description
of the drawings below is followed by the detailed description of
the preferred embodiment.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a drawing of an external view of the present invention.
FIG. 2 is an exploded drawing of a piece of patch fabric adhered
to a piece of foam of the present invention.
FIG. 3 is a structural drawing of using a die casting machine to
mold for the first time.
FIG. 4 is an exploded drawing of placing a steel wire on the first
molded foam.
FIG. 5 is an exploded drawing of placing another piece of foam
after placing the steel wire and before molding by die casting for
the second time.
FIG. 6 is a structural drawing of using the die casting machine
to mold for the second time.
FIG. 7 is a drawing of an external view of a prior art product.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As indicated in FIG. 1 the present invention of a bra has arcuate
steel wires (2) placed and positioned inside groove channels (11)
at lower rims of two breast cups (1) thereof by using a die casting
machine to mold at a high temperature twice. The steel wires (2)
completely fill in the groove channels (11) thereby more completely
supporting the breast shapes of the breast cups (1) without requiring
a seaming method so as to save the labor time and cost of seaming
and processing manufacture. The procedure of manufacturing the breast
cups (1) is as follows: 1. Referring to FIG. 2 first a piece of
patch fabric (3) of 100% polyester is adhered to one side of a piece
of foam (4) by glue; then the foam (4) with one side adhered is
cut into a small rectangular block. 2. Face the side of the patch
fabric (3) of the rectangular block downwardly and use the die casting
machine to mold for the first time at a high temperature, as shown
in FIG. 3. Place the steel wires (2) onto the groove channels (11)
of the foam (4) breast cups (1), as shown in FIG. 4. 3. Place another
piece of not molded foam (5) with one side thereof adhered and the
side of the patch fabric (51) facing upwardly on the foam (4) and
the steel wires (2), as shown in FIG. 5. Die cast the foam (5) for
the second time at a high temperature to finish molding the breast
cups (1). 4. Cut the molded foam (4) breast cups (1) along the side
lines to finish the manufacture.
Then conventional members, such as an upper side piece (6) and
a shoulder strap (7) are seamed respectively onto the left and right
breast cups (1) manufactured through the abovementioned steps and
methods thereby forming the bra as shown in FIG. 1. The steel wire
(2) on the bottom rim of the breast cup (1) of the bra is not seamed
and inserted for fixing, it is completely placed inside the groove
channel (11) of the breast cup (1). That does not destroy the entire
external view of the bra; furthermore, the steel wire (2) affixed
closely to the breast cup (1) is able to support the breast shape
of the bra completely.
In summation of the abovementioned, the present invention utilizes
the method of using a die casting machine to mold twice at a high
temperature thereby directly placing the arcuate steel wires (2)
into the groove channels (11) on the bottom rims of the breast cups
(1). It is very simple and fast to dispose the steel wires (2) into
the bra for positioning entirely in the groove channels (11) of
the breast cups (1) so as to support the breast shapes of the bra
more completely.
It is of course to be understood that the embodiment described
herein is merely illustrative of the principles of the invention
and that a wide variety of modifications thereto may be effected
by persons skilled in the art without departing from the spirit
and scope of the invention as set forth in the following claims.
|