Patent US4235300A successfully refreshed from Google Patents.
US4235300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Front wheel suspension for electric vehicles with front wheel drive
Assignee: A S STROMMENS VAERKSTED
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Filing: 1979-02-28
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Granted: 1980-11-25
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Expires: 1999-02-28
Abstract
Abstract Front wheel suspension for electric vehicles with front wheel drive, comprising at least two arms provided between a rigid front axle and frame members of the vehicle, at least one of said arms being articulated to the axle and all arms extending mainly horizontally from the axle and being connected to the frame members by means of ball joints, a differential unit arranged at the central part of the axle between the arms, an electromotor mounted directly on the differential unit and extending away from the axle mainly horizontally and in the same direction as the arms so that the center of gravity of the motor is all the time lying substantially stationary on a line through said ball joints, and springs in the form of helical springs or rubber springs provided between the axle and the frame members.
Inventors
- 👤 Jan W. Capjon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:12
CPC Classifications
B; B60; B60G; B60G9/00; B60K; B60K1/00; B60G2200/00; B60G2200/30; B60G2200/314; B60G2200/315; B60G2202/00; B60G2202/10; B60G2202/15; B60G2202/152; B60G2204/00; B60G2204/40; B60G2204/45; B60G2204/4504
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
140 words
Front wheel suspension for electric vehicles with front wheel drive and steering, characterised by the combination of at least two arms provided between a rigid front axle and frame members of the vehicle, at least one of said arms being articulated to the axle and all arms extending mainly horizontally from the axle and being connected to the frame members by means of ball joints, a differential unit arranged at the central part of the axle between the arms, an electromotor mounted directly on the differential unit and extending away from the axle as a cantilever mainly horizontally and in the same direction as the arms so that the centre of gravity of the motor is all the time lying substantially stationary on a line (L) through said ball joints, and springs provided between the axle and the frame members.
Claim 2
Dependent Claim
140 words
Front wheel suspension for electric vehicles with front wheel drive and steering, characterised by the combination of at least two arms provided between a rigid front axle and frame members of the vehicle, at least one of said arms being articulated to the axle and all arms extending mainly horizontally from the axle and being connected to the frame members by means of ball joints, a differential unit arranged at the central part of the axle between the arms, an electromotor mounted directly on the differential unit and extending away from the axle as a cantilever mainly horizontally and in the same direction as the arms so that the centre of gravity of the motor is all the time lying substantially stationary on a line (L) through said ball joints, and springs provided between the axle and the frame members.
Claim 3
Dependent Claim
27 words
Front wheel suspension according to claim 1, characterised in that one arm is articulated to the axle and a second arm is rigidly connected to the axle.
Claim 4
Dependent Claim
61 words
Front wheel suspension according to claim 1, characterised in that two arms are articulated to the axle, and in that there are provided additional arms formed as a rigid yoke mounted on the one hand in ball joints at points of the frame members lying on said line, and on the other hand in a ball joint on the differential unit.
Claim 5
Dependent Claim
26 words
Front wheel suspension according to claim 1, characterised in that the arms are directed forwardly and also the electromotor extends forwardly with respect to the axle.
Claim 6
Dependent Claim
46 words
Front wheel suspension according to claim 1, characterised in that there is provided a generally vertical limiting strap between a point at the opposite side of the axle with respect to the direction in which the arms extend, and a point at a frame member thereabove.
Claim 7
Dependent Claim
43 words
Front wheel suspension according to claim 1, characterized in that it is designed as an integral module built on a frame and containing all necessary main components for traction, steering and control of a vehicle, including electrical regulation, rectification, contactor and feeding circuits.
Claim 8
Dependent Claim
35 words
An electric vehicle including a front wheel suspension according to claim 1, wheels mounted on said axle at opposite ends thereof respectively and means for applying steering effort to the wheels for steering the vehicle.
References Cited (Backward Citations)
US1223495A
Cited
US1178144A
Cited
US2001029A
Cited
US2013599A
Cited
US2227379A
Cited
US3917016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-25 | 1984-05-26 | 1984-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-25 | 1988-05-26 | 1988-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-25 | 1992-05-26 | 1992-11-25 | $7700.00 | Window Closed / Lapsed |