Strip between a rim and an inner tube of a tire

Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture

Reexamination Certificate

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Details

C428S131000, C428S137000, C152S368000

Reexamination Certificate

active

06423395

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a strip located between an inner tube and a rim of a tire. The loop-shaped strip includes a non-flexibility fabric portion with its two ends respectively connected with a short section of flexible belt. The fabric portion includes an aperture for the inflation valve extending therethrough. The strip provides a durable feature so as to effectively separate the inner tube from the inside of the rim and the spokes.
BACKGROUND OF THE INVENTION
A conventional composition of a bicycle wheel is shown in FIG.
4
and generally includes a rim
10
which is made of metal material, a strip
14
located on the inside bottom
103
of the rim
10
, a tire
13
an inner tube
12
which is located between the strip
14
and the tire
13
. The rim
10
has two sidewalls and a plurality of holes
101
are defined through the inside bottom
103
so as to allow the head of spokes
11
to be engaged therewith. An aperture
102
is further defined through the inside bottom
13
to let an inflation valve
120
be engaged with the aperture
102
, wherein the inflation valve
120
is connected to the inner tube
12
. The strip
14
is provided with a hole
140
so that the inflation valve
120
extends through the hole
140
in the strip
14
and the aperture
102
in the rim
10
. The position and the purpose that the strip
14
is located are to prevent the inner tube
12
from being worn by the heads of the spokes
11
. However, because the width of the strip
14
is limited so that there is only a small area between two sides of the strip
14
and the periphery defining the hole
140
in the strip
14
, the small areas tend to be torn. Once either one of the small areas is torn, the other small area is torn within a short period of time and the inner tube
12
is exposed to the spokes
11
. This will damage the inner tube
12
quickly. Furthermore, the rubber made strip
14
become hardened and is easily cracked when a high temperature is occurred.
The present invention intends to provide a strip which is composed a long section of non-flexibility fabric and only a short section of flexible belt is connected between two ends of the fabric so as to be a loop. The inner tube is well protected by the strip and the strip is strong enough to prevent the inner tube from being torn off.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a strip located between a rim and an inner tube of a tire. The strip includes a non-flexibility fabric portion and a flexible section which is connected between two ends of the fabric portion.
The object of the strip in accordance with the present invention is to provide a better protection for the inner tube of a tire and the structural strength of the non-flexibility fabric portion prevents the damage around the aperture through which the inflation valve extends.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.


REFERENCES:
patent: 561762 (1993-02-01), None

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