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US 7,063,115 B2Granted
Pneumatic tire
AssigneesThe Yokohama Rubber Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
InventorsTakashi Fukutomi, Satoshi Makino, Takayuki Toyoshima
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AssigneesThe Yokohama Rubber Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha
InventorsTakashi Fukutomi, Satoshi Makino, Takayuki Toyoshima
Estimating the term…
A pneumatic tire which makes it possible to effectively prevent puncture during running without involving a large increase in weight or degradation of riding comfortability. This pneumatic tire has a plurality of films disposed in the manner of fish scales in at least a region corresponding to a tread portion of an inner surface of the tire, each of the films being partially fixed on the inner surface of the tire, the fixed portions of the films being covered by the non-fixed portions of the other films.
A pneumatic tire comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Parts of pneumatic tyres; accessories, auxiliary operations: incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
Auto-repairing or self-sealing arrangements or agents: the article material itself being self-sealing, e.g. by compression
The article material itself being self-sealing, e.g. by compression: the article material only consisting in part of a deformable sealing material
With impervious liner or coating on the inner wall of the tyre: provided partially, i.e. not covering the whole inner wall
Term ended 17 Sep 2022 (estimated)
1. Field of the Invention
The present invention concerns a pneumatic tire provided with a punctureless function, and more particularly a pneumatic tire composed to prevent puncture during running without involving a large increase in weight or degradation of comfortable ride.
2. Detailed Description of the Related Art
FIG. 1 is a half cross-section view of a pneumatic tire according to an embodiment of the present invention;
FIG. 2 is a plan view showing films in the manner of fish scales disposed on the inner surface of the pneumatic tire according to an embodiment of the present invention;
FIG. 3 is a cross-section along X—X of FIG. 2;
Now, a composition of the present invention shall be described in detail referring to the attached drawings.
FIG. 1 shows a pneumatic tire according to an embodiment of the present invention, 1 is a tread portion, 2 is a side wall portion and 3 is a bead portion. A carcass layer 4 is mounted between a pair of right and left bead portions 3, 3 and an end thereof in the tire width direction is wound up from the tire inside to the outside around a bead core 5. An inner liner layer 6 is disposed inside the carcass layer 4. Moreover, a plurality of belt layers 7 are embedded in the outer peripheral side of the carcass layer 4 in the tread portion 1.
In the aforementioned pneumatic tire, a plurality of films 8 cut substantially square are arranged in the manner of fish scales in a region corresponding to the tread portion 1 of the inner surface of the tire. As shown in FIG. 2 and FIG. 3, respective film 8 is fixed to the inner surface of the tire along one side, this portion forms a fixed portion 8a and the other portion forms a non-fixed portion 8b. What is more, the fixed portion 8a of the film 8 is covered by the non-fixed portion 8b of the other film 8. Obviously, the non-fixed portion 8b of the film 8 and the non-fixed portion 8b of the other film 8 may be disposed to overlap partially. Moreover, the film 8 may be fixed only by a single corner. An adhesive can be used for forming such fixed portion 8a.