Note: Descriptions are shown in the official language in which they were submitted.
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ALERTING STRUCTURE FOR AN ABRASION OF TIRE
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention retates to an alerting structure for an abrasion
of tire, and more particularly to an improvement to a rubber layer of tire
so as to provide a consumer with a method of direct visualization to
check a degree of safety of the tire by oneseff, thereby faciGtating a tire
industry to enter a business of tire abrasion alerting structure of new
safety concept and specification.
(b) Description of the Prior Art
Referring to FIG. 1, it shows a cross sectional view of a conventional
tire. An ordinary rubber tire comprises a primary shape of structure
which is formed by hoping a tire layer 10, with rubber layers 20 being
is clad on an inner and outer circumference of the tire layer 10,
respectively.
According to different loading functions of the tire, the tire layer 10 can
be made by steel wires or artificial wires such as nylon and the rubber
materiaf chosen for the rubber layers 20 are also dependent upon the
variation of reaction forces to be sustained and functions at each part of
the tire.
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For example, as a tire surface of the tire is directly in contact with a
road, the rubber material to be chosen should be equipped with a good
resistance to abrasion and be provided with extremely good features of
resistance to heat and prick at a same time. As for a sidewall of the tire,
as it should be sustained with a larger mechanical deformation, the
rubber material at the sidewall is preferable provided with lower yield
strength, a good resistance to fatigue and ozone, For a part of the
rubber layer 20 that is directly in contact with the tire layer 10, the rubber
material to be chosen should be provided with higher strength, a
resistance to fatigue and heat, and adhesiveness additionally, such that
a buffer layer 30 is constituted between the rubber layer 20 and the tire
layer 10.
On the other hand, a shoulder part between the tire surface and the
sidewall of tire should be able to smoothly connect the hard tire surface
to the soft sidewall, and transfer and absorb stress which is accumulated
at the shoulder part under a moving condition to reduce a danger of
emptiness of the shoulder part; therefore, the rubber material to be
chosen should be provided with an excellent fatigue resistance and a
good adhesiveness. In addition, it is in common to use a triangular
rubber strip of a larger hardness or two triangular rubber strips of
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different hardness to reinforce the rim part of tire, such that the rim can
be stably shaped.
Although each part of the tire is sustained to difference force and
reaction, thus the rubber materials of different functions are required.
However, as long as all kinds of additives are added into the raw
materials of rubber basically, the rubber will be provided with the
required features. In addition, the feature of rubber material at each
part of the rubber tire for a different purpose is not exactly the same,
even that it is not necessary to distinguish the rubber materials at the tire
surface, sidewall, or shoulder. Accordingly, in the specification of
present invention, the rubber layer structure at the tire surface, sidewall,
and shoulder will be treated as a single "rubber layer 20."
In addition to that the rubber layer 20 of tire should be provided vAth
the aforementioned features, the tire surface of rubber layer 20 should
be made into tire treads 21 of the tire, for a largest purpose of expelling
water accumulated on the tire, along with a facilitation for expelling
sandstones or fine gravels, so as to increase a contact area of the tire
with a ground, thereby acquiring a better grip. Therefore, a change of
depth of the tire tread (from deep to shallow) will directly affect a driving
of vehicles and can be used to determine whether a tire pressure is
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normal or whether the tire is perfectly aligned, through an observation
that whether the tire treads of entire tire surface are abraded uniformly.
However, a conventional safety alerting mechanism for the tire only
includes a triangular safety mark for the tire abrasion which is embedded
in the tire surface of rubber layer, and a steering wheel should be turned
to any side in general to check that whether the front tire treads have
been abraded to the triangular safety mark for the tire abrasion, for
checking whether the tire treads are stiii within an operable limit or for
considering to replace the tire. For an ordinary consumer, he or she is
not completely equipped with this kind of technology and related
capability or common sense of determination; therefore, the tire will be
overly abraded to incur a danger if it is stiii used. Moreover, there are
unworthy practicers who will trick the consumer to replace with a new tire
even when the tire is not abraded to the extend requiring the
replacement, when the vehicle is subjected to maintenance.
SUMMARY OF THE INVENTION
Accordingly, the present invention is to provide an improvement to
the rubber layer structure of tire, wherein at least one alerting layer of a
different color than the tire surface is divided into the rubber layer of tire
in accordance with a safe abrasion condition of the tire. A default
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distance of the alerting layer to the tire surface is less than the depth of
tire tread, and before the tire tread is wom out, the alerting layer of
default color will be exposed out at the part of tire which is abraded, due
to a different extent of abrasion.
Accordingly, it facilitates the consumer to check the degree of safety
of the tire by oneself by a direct visualization method, can prevent
unworthy practicers to trick the consumer to replace the tire while the tire
has not achieved to a standard of abrasion, and can even present a
used tire from being manufactured by retreading an old tire, so as to
sharply decrease the used-tire markets and the used-tire consumer
groups.
To enable a further understanding of the said objectives and the
technological methods of the invention herein, the brief description of the
drawings below is followed by the detailed description of the preferred
embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a cross sectional view of a conventional tire.
FIG. 2 shows a cross sectional view of a tire of the present invention.
FIG. 3 shows a schematic view of a tire of the present invention which is
abraded.
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Refening to FIG. 2, an entire tire comprises primarily a tire layer 10
which is hoped into a primary structure, and rubber layers which are clad
on an inner and outer circumference of the tire layer 10. The tire layer
10 can be optionally made by steel wires or artificial wires such as nylon,
and the rubber material chosen for the rubber layers 20 are also
dependent upon the variation of reaction forces to be sustained and
functions at each part of the tire. In addition, all kinds of additives can
be added into the raw material of rubber, such that the rubber can
manifest the required features.
Furthermore, a tire surface of the rubber layer 20 is provided with
tire treads 21 which can be used to expel water accumulated on the tire
and to facilitate an expelling of sandstones or fine gravels, so as to
increase a contact area of the ti:re with a ground, thereby acquiring a
better grip. In a practical embodiment, a buffer layer 30 can be further
formed at a position where the rubber layer 20 is in contact with the tire
layer 10.
The essential feature of present invention is that at least one
alerting layer of a different color than the tire surface is divided into the
rubber layer 20 of tire, in accordance with a safe abrasion condition of
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the tire. In the embodiment, a first alerting layer 221 and a second
alerting layer 222 are provided, wherein the two alerting layers (the first
and second alerting layers 221, 222) are provided with different colors
and depths respectively, and a default distance of the alerting layer to
the tire surface is less than a depth of the tire tread 21.
Accordingly, referring to FIG. 3, before the tire tread 21 is wom out, a
the alerting layer of default color (the first and second alerting layers 221,
222) will be emerged at a part of the tire that is abraded, due to a
different extent of abrasion, which facilitates a consumer to check a
safety condition of the tire by oneself by a direct visualization method,
such that the consumer can be warned that the tire has been broken to
cause a danger, when the alerting layer is exposed if the tire surface is
broken or burst out from a sharp object or nail on a road, and can
prevent unworthy practicers to trick the consumer to replace the tire
while it has not achieved a standard of abrasion.
In principle, the closer the alerting layer (such as the first alerting
layer 221 shown in the drawing) is to the tire surface, the thinner the
thickness is, enabling the consumer to recognize that shortly after an
appearance of the first alerting layer (such as the first alerting layer 221
shown in the drawing), the second alerting layer (such as the second
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alerting layer 222 as shown in the drawing) will be exposed next.
Therefore, it will facilitate a tire industry to enter into a business of new
safety concept and specification, and will even prevent a used tire from
being manufactured by retreading an old tire, so as to sharply decrease
the used-tire markets and the used-tire consumer groups.
It is of course to be understood that the embodiments 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.
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