Patent US3775607A successfully refreshed from Google Patents.
Patent US6782930B2 successfully refreshed from Google Patents.
US6782930B2
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US
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Elastic wheel
Assignee: Topy Industries Ltd
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Filing: 2000-12-21
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Granted: 2004-08-31
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Expires: 2020-12-21
Abstract
Abstract An elastic wheel, comprising a disk ( 1 ) having a base rim ( 2 ) and a rim ( 3 ) pivotally supporting a tire ( 10 ), wherein a projected part ( 5 ) with a generally trapezoidal cross-section in the wheel axis direction is formed in a well of the rim ( 3 ), and a pair of elastic rubber bodies ( 6 ) are provided annually between the outer surfaces of a pair of wall parts ( 4 a, 4 b ) formed by bending the both sides of the base rim ( 2 ) at a sharp angle and the rim inner peripheral surface of the generally trapezoidal projected part ( 5 ), whereby vibration can be absorbed by both the shearing deformation and compressive deformation of the installed elastic rubber bodies ( 6 ) so as to increase riding comfort, vibration proofing, and sound proofing performances in the area ranging from small input to large input, the sound proofing performance being very effective for sound in a high frequency area of 100 Hz or higher.
Inventors
- 👤 Hirohumi Kikuchi
- 👤 Katsumi Tashiro
- 👤 Masanori Murase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:02
CPC Classifications
B; B60; B60B; B60B9/00; B60B9/02; B60B9/10; B60B9/12
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
132 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a generally trapezoidal cross-section in the wheel axis direction projecting outward from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part, and wherein an angle β 1 defined by a leg portion constituting the generally trapezoidal shape and an equatorial plane E of the wheel is substantially equal to an angle α 1 defined by an outer peripheral surface of one of the wall parts and the equatorial plane E of the wheel.
Claim 2
Dependent Claim
132 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a generally trapezoidal cross-section in the wheel axis direction projecting outward from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part, and wherein an angle β 1 defined by a leg portion constituting the generally trapezoidal shape and an equatorial plane E of the wheel is substantially equal to an angle α 1 defined by an outer peripheral surface of one of the wall parts and the equatorial plane E of the wheel.
Claim 3
Dependent Claim
17 words
An elastic wheel according to claim 1 , wherein the generally trapezoidal shape is an isosceles trapezoid.
Claim 4
Dependent Claim
26 words
An elastic wheel according to claim 1 , wherein both of the angles α 1 and β 1 are in the range of 0° to 60°.
Claim 5
Dependent Claim
85 words
An elastic wheel according to claim 1 , wherein outer end portions in the tire radial direction of the wall parts are connected to each other so as to form a trapezoidal cross-section substantially similar to the generally trapezoidal shape of the projected part in the wheel axis direction, and another elastic rubber body is annularly disposed between a plateau portion of the base rim and a plateau portion of the rim with a gap being formed with respect to one of the plateau portions.
Claim 6
Dependent Claim
78 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a semi-circular cross-section in the wheel axis direction projecting from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part.
Claim 7
Dependent Claim
78 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a semi-circular cross-section in the wheel axis direction projecting from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part.
Claim 8
Dependent Claim
96 words
An elastic wheel according to claim 5 , wherein outer end portions in the tire radial direction of the wall parts are connected to each other so as to form a semi-circular cross-section in the wheel axis direction substantially similar to the semi-circular shape of the projected part, and another elastic rubber body is annularly disposed in an area between an outer peripheral surface of the base rim and the inner peripheral surface of the projected part with a gap being formed with respect to one of the outer peripheral surface and the inner peripheral surface.
Claim 9
Dependent Claim
103 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a generally trapezoidal cross-section in the wheel axis direction projected from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part, and another elastic rubber body is annularly disposed between a plateau portion of the projected part and a plateau portion of the base rim.
Claim 10
Dependent Claim
103 words
An elastic wheel comprising a disk having a base rim and a rim supporting a tire, said rim including a well and a projected part with a generally trapezoidal cross-section in the wheel axis direction projected from the well, said base rim including a pair of wall parts, and said wheel further comprising a pair of elastic rubber bodies disposed annularly between outer surfaces of the pair of wall parts and an inner peripheral surface of the projected part, and another elastic rubber body is annularly disposed between a plateau portion of the projected part and a plateau portion of the base rim.
Claim 11
Dependent Claim
17 words
An elastic wheel according to claim 7 , wherein the generally trapezoidal shape is an isosceles trapezoid.
Claim 12
Dependent Claim
56 words
An elastic wheel according to claim 7 or 8 , wherein an angle β defined by one of the rim inner peripheral surfaces and an equatorial plane of the wheel is substantially equal to an angle α defined by one of the outer peripheral surfaces of the wall parts and the equatorial plane of the wheel.
Claim 13
Dependent Claim
24 words
An elastic wheel according to claim 9 , wherein both of the angles α and β are in the range of 0° to 60°.
Claim 14
Dependent Claim
79 words
An elastic wheel according to claim 7 , wherein outer end portions in the tire radial direction of the wall parts are connected to each other so as to form a trapezoidal cross-section substantially similar to the generally trapezoidal shape of the projected part in the wheel axis direction, and wherein a gap is disposed between the other elastic rubber body and one of said plateau portion of the base rim and the plateau portion of the projecting part.
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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) | 2007-08-31 | 2008-03-01 | 2008-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-08-31 | 2012-03-01 | 2012-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-08-31 | 2016-03-01 | 2016-08-31 | $7700.00 | Window Closed / Lapsed |