Tent – canopy – umbrella – or cane – Portable shelter – Cover for shelter
Reexamination Certificate
2002-03-13
2004-01-27
Yip, Winnie (Department: 3635)
Tent, canopy, umbrella, or cane
Portable shelter
Cover for shelter
C135S119000, C135S116000, C135S137000
Reexamination Certificate
active
06681785
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a tent, and more particularly, to a waterproof structure of a tent floor corner portion which can obtain a perfect waterproof effect of a tent corner portion by forming a cut hole by cutting away a plurality of corner portions formed by fabric cloth sides and a fabric cloth floor surface of a tent, connecting a tarpaulin corner cloth to the cut hole to be overlapped with each other, attaching overlapped portions by sewing and heat-sealing a plurality of tarpaulin disc members sewn with a webbing tape to the tarpaulin corner cloth, which can manufacture a better-looking tent by differentiating the color of the tarpaulin corner cloth and presenting a variety of peculiar designs, and which can acquire a very economic effect by obtaining a maximum waterproof effect with a minimum amount of an expensive tarpaulin cloth.
2. Description of the Prior Art
FIGS. 1 and 2
shows one example of a conventional tent.
In the conventional tent
1
, fabric cloth sides
2
and a fabric cloth floor surface
3
are all made of fiber material.
At a plurality of corner portions formed at the tent
1
made of fiber material, a loop
8
for connecting the tent
1
to a pole is connected.
However, since the loop
8
is made of metal material, it cannot be attached directly to the corner portion of the tent
1
, but is attached thereto using a webbing tape
6
.
Thus, by sewing the webbing tape
6
to the corner of the tent
1
by a sewing machine, the webbing tape
6
can be attached thereto along a second sewing line
7
.
In case of a spiral-wound loop
8
, it is connected to the webbing tape
6
, or in case of a ring-shaped loop, it is previously connected with the webbing tape
6
before sewing.
However, the above-mentioned conventional art causes a problem that water is leaked to the corner of the tent
1
through the second sewing line
7
in case of rain.
Of course, in the conventional art, an inner cloth
5
covers the inside of the corner portion along a first sewing line
4
as shown in FIG.
2
. But, rainwater remaining between the cloth side
2
and cloth floor surface
3
and the inner cloth
5
is not funneled off well. Resultantly, the inside of the tent
1
becomes flooded, thus making it impossible to obtain a perfect waterproof effect.
FIGS. 3 and 4
shows another prior art devised in order to solve the above problems.
The prior art is a technique of attaching sides and a floor surface of a tent
11
made of a PVC tarpaulin material.
That is, a perfect waterproof effect can be obtained by tarpaulin cloth sides
12
and a tarpaulin cloth floor surface
13
.
And, at the corner portion which is a border of the tarpaulin cloth sides
12
and a tarpaulin cloth floor surface
13
, a tarpaulin disc member
14
is heat-sealed.
In addition, since a webbing tape
15
connecting a loop
17
is attached to the tarpaulin disc member
14
along a sewing line
16
before heat sealing, the loop
17
can be disposed at the corner portion by heat-sealing the tarpaulin disc member
14
to the corner portion.
However, in case of using the cloth sides
12
and cloth floor surface
13
of the tent
1
all made of tarpaulin cloth, it costs a great deal in manufacturing process.
In other words, generally, the tarpaulin cloth is much more expensive than the fabric cloth used for the tent
1
, so it is difficult to employ the tarpaulin cloth to the tent
1
. Hence, the tarpaulin cloth is being used for only some highest grade products.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a waterproof structure of a tent floor corner portion which can obtain a perfect waterproof effect of a tent corner portion, which can manufacture a better-looking tent by differentiating the color of the tarpaulin corner cloth and presenting a variety of peculiar designs, and which can acquire a very economic effect by obtaining a maximum waterproof effect with a minimum amount of an expensive tarpaulin cloth.
To achieve the above object, there is provided a waterproof structure of a tent floor corner portion, comprising: a cut hole formed by cutting away a plurality of corner portions formed by fabric cloth sides and fabric cloth floor surface of a tent; a tarpaulin corner cloth overlapping the peripheral portion of the cut hole with its overlapped portion being attached by sewing; and a plurality of tarpaulin disc members to which a webbing tape heat-sealed with the tarpaulin corner cloth is sewn in order to attach the webbing tape connecting a loop by the tarpaulin corner cloth.
REFERENCES:
patent: 1871570 (1932-08-01), Weber
patent: 3586013 (1971-06-01), Gladden
patent: 3863659 (1975-02-01), Gillis
patent: 4305414 (1981-12-01), Bareis
patent: 4352362 (1982-10-01), Nichols
patent: 4665935 (1987-05-01), Nichols
patent: 5315736 (1994-05-01), Nilsson
patent: 6334455 (2002-01-01), Nunez, Sr.
patent: 6338356 (2002-01-01), Wallenstatter
patent: 2002/0000241 (2002-01-01), Lee
patent: 2672075 (1992-07-01), None
patent: 20002-70366 (2002-03-01), None
patent: WO01/96694 (2001-12-01), None
Jacobson & Holman PLLC
Yip Winnie
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