Patent US4491429A successfully refreshed from Google Patents.
US4491429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bushing assembly for suspension arm
Assignee: Toyota Motor Corp
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Filing: 1982-12-23
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Granted: 1985-01-01
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Expires: 2002-12-23
Abstract
Abstract A bushing assembly incorporated in an eye of a suspension arm for an automobile includes a cylindrical member, a cylindrical rubber bushing adhered to the outer peripheral surface of the member and press fitted in the eye, and a cylindrical insert embedded in the bushing. The bushing is provided on each end with a flange extending radially outward and contacting each end surface of the eye when the bushing has been fitted in the eye.
Inventors
- 👤 Taketo Matoba
- 👤 Yasuhiro Morita
- 👤 Noritoshi Arai
- 👤 Masahiro Ishigaki
- 👤 Hiroshi Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:43
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/06; F16C27/063; B; B60; B60G; B60G7/00; F16F; F16F1/00; F16F1/36; F16F1/38; F16F1/387; F16C2326/00; F16C2326/01; F16C2326/05; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/455; Y10T403/458
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
103 words
A bushing assembly incorporated in an eye of a suspension arm for an automobile, comprising: a cylindrical metal member; a cylindrical rubber bushing adhered to the outer peripheral surface of said member, press fitted into said eye and provided on each end with a flange extending radially outward; and a cylindrical insert formed of material harder than the bushing and being provided with at least one slit extending axially from a complete cylindrical portion at one end thereof and embedded in the bushing, each said flange contacting each end surface of the eye when said bushing has been press fitted into said eye.
Claim 2
Dependent Claim
103 words
A bushing assembly incorporated in an eye of a suspension arm for an automobile, comprising: a cylindrical metal member; a cylindrical rubber bushing adhered to the outer peripheral surface of said member, press fitted into said eye and provided on each end with a flange extending radially outward; and a cylindrical insert formed of material harder than the bushing and being provided with at least one slit extending axially from a complete cylindrical portion at one end thereof and embedded in the bushing, each said flange contacting each end surface of the eye when said bushing has been press fitted into said eye.
Claim 3
Dependent Claim
30 words
A bushing assembly as claimed in claim 1, wherein said member is provided on each end with a flange extending radially outward and contacting each end surface of said bushing.
Claim 4
Dependent Claim
22 words
A bushing assembly as claimed in claim 1, wherein said insert is provided on one end with a flange extending radially outward.
Claim 5
Dependent Claim
41 words
A bushing assembly as claimed in claim 1, wherein said bushing assembly has a value of KR/KS of 15-20 wherein KR is a radial spring constant of said bushing assembly and KS is an axial spring constant of said bushing assembly.
Claim 6
Dependent Claim
151 words
A bushing assembly incorporated in an eye of a suspension arm for an automobile, comprising: a cylindrical metal member provided on each end with a flange extending radially outward; a cylindrical rubber bushing adhered to the outer peripheral surface of said member with each end surface thereof contacting said flange of the member, said bushing being press fitted into said eye and provided on each end with a flange extending radially outward; and a cylindrical insert formed of material harder than the bushing and being provided with at least one slit extending axially from a complete cylindrical portion at one end thereof and embedded in the bushing, said insert being provided with at least a slit extending axially and on one end with a flange extending radially outward, each said flange of said bushing contacting each end surface of the eye when said bushing has been press fitted into the eye.
Claim 7
Dependent Claim
151 words
A bushing assembly incorporated in an eye of a suspension arm for an automobile, comprising: a cylindrical metal member provided on each end with a flange extending radially outward; a cylindrical rubber bushing adhered to the outer peripheral surface of said member with each end surface thereof contacting said flange of the member, said bushing being press fitted into said eye and provided on each end with a flange extending radially outward; and a cylindrical insert formed of material harder than the bushing and being provided with at least one slit extending axially from a complete cylindrical portion at one end thereof and embedded in the bushing, said insert being provided with at least a slit extending axially and on one end with a flange extending radially outward, each said flange of said bushing contacting each end surface of the eye when said bushing has been press fitted into the eye.
Claim 8
Dependent Claim
41 words
A bushing assembly as claimed in claim 5, wherein said bushing assembly has a value of KR/KS of 15-20 wherein KR is a radial spring constant of said bushing assembly and KS is an axial spring constant of said bushing assembly.
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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) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |