US7950428B2
Active / In Force
US
⏱️ 0.8 years remaining
Non-pneumatic tire
Assignee: Yokohama Rubber Co Ltd
•
Filing: 2007-08-14
•
Granted: 2011-05-31
•
Expires: 2027-08-14
Abstract
Abstract A non-pneumatic tire includes a spoke structure that can be easily mounted on a rim of a wheel. Durability is improved by suppressing the buckling of a spoke structure. A non-pneumatic tire includes a spoke structure ( 5 ) and a tread ring ( 11 ). The spoke structure ( 5 ) includes a cylindrical outer member ( 2 ) and a cylindrical inner member ( 3 ) which are concentrically arranged, and which are connected to each other with a plurality of fins ( 4, 4 ′) arranged at intervals in the circumferential direction. The tread ring ( 11 ) fits onto the outer periphery of the spoke structure ( 5 ). The spoke structure ( 5 ) is divided in the tire circumferential direction into at least two circumferential-direction separate structures ( 511, 521, 531 ).
Inventors
- 👤 Ryoji Hanada
- 👤 Hideki Seto
- 👤 Yoshiaki Hashimura
- 👤 Jun Matsuda
- 👤 Tsuyoshi Kitazaki
- 👤 Izumi Kuramochi
- 👤 Kenichiro Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
B; B60; B60C; B60C7/00; B60C7/10; B60C7/14; B60C7/143; B60C7/08; B60C7/102; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10279; Y10T152/10378
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
177 words
A non-pneumatic tire comprising: a spoke structure including a cylindrical outer member and a cylindrical inner member which are concentrically arranged, and which are connected to each other with a plurality of fins arranged in between at intervals in the circumferential direction; and a tread ring fitted onto the outer periphery of the spoke structure, wherein the spoke structure is divided in the tire circumferential direction into at least two circumferential-direction separate structures; wherein the spoke structure is divided in the tire width direction into three width-direction separate structures, which are independent and discrete structures, wherein the fins extend across the tire width in the tire width direction and a width of each fin is the same as a width of the width-direction separate structure, such that all of said fins within a single one of said width-direction separate structures are configured and arranged in the same manner; and wherein the fins of one of each adjacent two of the width-direction separate structures are displaced in the circumferential direction relative to the fins of the other one.
Claim 2
Dependent Claim
177 words
A non-pneumatic tire comprising: a spoke structure including a cylindrical outer member and a cylindrical inner member which are concentrically arranged, and which are connected to each other with a plurality of fins arranged in between at intervals in the circumferential direction; and a tread ring fitted onto the outer periphery of the spoke structure, wherein the spoke structure is divided in the tire circumferential direction into at least two circumferential-direction separate structures; wherein the spoke structure is divided in the tire width direction into three width-direction separate structures, which are independent and discrete structures, wherein the fins extend across the tire width in the tire width direction and a width of each fin is the same as a width of the width-direction separate structure, such that all of said fins within a single one of said width-direction separate structures are configured and arranged in the same manner; and wherein the fins of one of each adjacent two of the width-direction separate structures are displaced in the circumferential direction relative to the fins of the other one.
Claim 3
Dependent Claim
20 words
The non-pneumatic tire according to claim 1 , wherein the number of the circumferential-direction separate structures is two to eight.
Claim 4
Dependent Claim
54 words
The non-pneumatic tire according to claim 1 , wherein: the fins of each adjacent two of the width-direction separate structures have the same arrangement pitch in the circumferential direction, and the amount of displacement of the fins between each adjacent two of the width-direction separate structures is 0.4 to 0.6 times the arrangement pitch.
Claim 5
Dependent Claim
45 words
The non-pneumatic tire according to claim 1 , wherein among the three width-direction separate structures, the arrangement pitch of the fins of the width-direction separate structure in the center is made smaller than that of the fins of the width-direction separate structures on both sides.
Claim 6
Dependent Claim
47 words
The non-pneumatic tire according to claim 1 , wherein among the three width-direction separate structures, which each include a plurality of said fins, the width of the width-direction separate structure in the center is smaller than that of each of the width-direction separate structures on both sides.
Claim 7
Dependent Claim
53 words
The non-pneumatic tire according to claim 1 , wherein among the three width-direction separate structures, which each include a plurality of said fins, the thickness of each fin of the width-direction separate structure in the center is smaller than that of each fin of each of the width-direction separate structures on both sides.
Claim 8
Dependent Claim
45 words
The non-pneumatic tire according to claim 5 , wherein among the three width-direction separate structures, the thickness of each fin of the width-direction separate structure in the center is smaller than that of each fin of each of the width-direction separate structures on both sides.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2014-05-30 | 2014-11-29 | 2015-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2018-05-30 | 2018-11-29 | 2019-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2022-05-30 | 2022-11-29 | 2023-05-31 | $7700.00 | Window Closed / Lapsed |