US3573880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front wheel suspension for motor vehicle
Assignee: Nissan Motor Co Ltd
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Filing: 1968-10-18
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Granted: 1971-04-06
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Expires: 1988-10-18
Abstract
Abstract An improvement in a strut-type suspension for motor vehicle having a coil spring placed about a cylinder and piston assembly, wherein the lower end of the coil spring and a spring seat rotate eccentrically around the cylinder and piston assembly when the vehicle is steered. The coil spring is pressed onto the vehicle frame at the upper end thereof and on the spring seat at the lower end thereof, and the cylinder and piston rod assembly extends eccentrically through said coil spring. The spring is provided for supporting said coil spring. Said seat being mounted on said cylinder and piston for eccentric rotation about said assembly.
Inventors
- 👤 Yasuyuki Sakai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
B; B60; B60G; B60G15/00; B60G15/02; B60G15/06; B60G15/07
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
95 words
A strut-type suspension for motor vehicles comprising: a cylinder and piston assembly; means for attaching said cylinder and piston assembly to the vehicle frame at the upper end thereof and to the vehicle wheel at the lower end thereof; a coil spring disposed eccentrically about said cylinder and piston assembly and fixed at the upper end thereof to the vehicle frame; a spring seat fixed to the lower end of said spring for supporting said spring; and means for mounting said spring seat on said cylinder and piston assembly for eccentric rotation about said assembly.
Claim 2
Dependent Claim
95 words
A strut-type suspension for motor vehicles comprising: a cylinder and piston assembly; means for attaching said cylinder and piston assembly to the vehicle frame at the upper end thereof and to the vehicle wheel at the lower end thereof; a coil spring disposed eccentrically about said cylinder and piston assembly and fixed at the upper end thereof to the vehicle frame; a spring seat fixed to the lower end of said spring for supporting said spring; and means for mounting said spring seat on said cylinder and piston assembly for eccentric rotation about said assembly.
Claim 3
Dependent Claim
48 words
The strut-type suspension according to claim 1, wherein said mounting means comprises: a bracket fixed to and extending outwardly from said cylinder and piston assembly; and a pin rotatably mounted on said bracket and to which said spring seat is attached at the center portion of said seat.
Claim 4
Dependent Claim
71 words
The strut-type suspension according to claim 2, wherein said cylinder and piston assembly includes: a piston rod connected to said piston and extending coaxially with and outwardly from said cylinder; and a boot comprising a bellows like tubular member attached at one end to said cylinder where said piston rod emerges and at the other end to the piston rod, said tubular member having sectOr-shaped air inlets at said other end.
Claim 5
Dependent Claim
14 words
The strut-type suspension according to claim 3, wherein said boot is made of rubber.
Claim 6
Dependent Claim
86 words
A strut-type suspension according to claim 2, wherein the center point of the upper end of said coil spring is nearer the axis of said cylinder and piston assembly than that of the lower end of said coil spring, and the longitudinal axis of said assembly is angularly offset relative to the perpendicular to the plane of said frame whereby the longitudinal axis of said spring is bent relative to the axis of said cylinder and piston assembly under the normal preloading weight of the vehicle.
Claim 7
Dependent Claim
69 words
The strut-type suspension of claim 5, wherein said cylinder and piston assembly includes: a piston rod connected to said piston and extending coaxially with an outwardly from said cylinder; and a boot comprising a bellowslike tubular member attached at one end to said cylinder where said piston rod emerges and at the other end to the piston rod, said tubular member having sector-shaped air inlets at said other end.
Claim 8
Dependent Claim
14 words
The strut-type suspension according to claim 6, wherein said boot is made of rubber.
Claim 9
Dependent Claim
44 words
The strut-type suspension according to claim 1, wherein said mounting means comprises: a bracket fixed to and extending outwardly from said cylinder and piston assembly; and a ball joint on said bracket connected to said spring seat at the center portion of said seat.
Claim 10
Dependent Claim
69 words
The strut-type suspension of claim 8, wherein said cylinder and piston assembly includes: a piston rod connected to said piston and extending coaxially with and outwardly from said cylinder; and a boot comprising a bellowslike tubular member attached at one end to said cylinder where said piston rod emerges and at the other end to the piston rod, said tubular member having sector-shaped air inlets at said other end.
Claim 11
Dependent Claim
14 words
The strut-type suspension according to claim 9, wherein said boot is made of rubber.
Claim 12
Dependent Claim
86 words
A strut-type suspension according to claim 8, wherein the center point of the upper end of said coil spring is nearer the axis of said cylinder and piston assembly than that of the lower end of said coil spring, and the longitudinal axis of said assembly is angularly offset relative to the perpendicular to the plane of said frame whereby the longitudinal axis of said spring is bent relative to the axis of said cylinder and piston assembly under the normal preloading weight of the vehicle.
Claim 13
Dependent Claim
69 words
The strut-type suspension of claim 11, wherein said cylinder and piston assembly includes: a piston rod connected to said piston and extending coaxially with and outwardly from said cylinder; and a boot comprising a bellowslike tubular member attached at one end to said cylinder where said piston rod emerges and at the other end to the piston rod, said tubular member having sector-shaped air inlets at said other end.
Claim 14
Dependent Claim
14 words
The strut-type suspension according to claim 12, wherein said boot is made of rubber.
Claim 15
Dependent Claim
70 words
A The strut-type suspension of claim 1, wherein said cylinder and piston assembly includes: a piston rod connected to said piston and extending coaxially with and outwardly from said cylinder; and a boot comprising a bellowslike tubular member attached at one end to said cylinder where said piston rod emerges and at the other end to the piston rod, said tubular member having sector-shaped air inlets at said other end.
Claim 16
Dependent Claim
14 words
The strut-type suspension according to claim 14, wherein said boot is made of rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |