US4401342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for eliminating vibrations of a driver's chair
Assignee: Individual
•
Filing: 1981-10-27
•
Granted: 1983-08-30
•
Expires: 2001-10-27
Abstract
Abstract This invention relates to a device for eliminating vibrations of a driver's chair. The device according to the invention is characterized in that it comprises a carrying frame, a cradle located within the carrying frame and carrying the driver's chair. The cradle is provided with a number of rotatably supported pulleys and is carried relative to the carrying frame in that the pulleys contact at least two wires or ropes supported by the carrying frame. One end of the wires is secured resiliently in the carrying frame, and the wires extend transversely to the driving direction for the vehicle, in which the device is to be mounted. A damping arrangement is also provided between the cradle and carrying frame.
Inventors
- 👤 Karl-Gunnar Andersson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:33
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/52; B60N2/527
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A device for eliminating vibrations of a driver's chair, comprising a carrying frame, a cradle provided in the carrying frame and carrying the driver's chair, the cradle including a plurality of rotatably mounted pulleys and being supported relative to the carrying frame such that the pulleys contact at least two wires or ropes supported by the carrying frame, one end of said wires being secured resiliently in the carrying frame, the wires extending transversely to the driving direction of the vehicle in which the device is adapted to be mounted such that inclinations at least in the transverse direction may be compensated, and damping means extending between the carrying frame and a portion of the cradle near a central portion of the driver's chair.
Claim 2
Independent Claim
124 words
A device for eliminating vibrations of a driver's chair, comprising a carrying frame, a cradle provided in the carrying frame and carrying the driver's chair, the cradle including a plurality of rotatably mounted pulleys and being supported relative to the carrying frame such that the pulleys contact at least two wires or ropes supported by the carrying frame, one end of said wires being secured resiliently in the carrying frame, the wires extending transversely to the driving direction of the vehicle in which the device is adapted to be mounted such that inclinations at least in the transverse direction may be compensated, and damping means extending between the carrying frame and a portion of the cradle near a central portion of the driver's chair.
Claim 3
Dependent Claim
62 words
The device as defined in claim 1, wherein the carrying frame comprises two side members, another end of the wires being non-resiliently attached to one side member, while the one end of the wires is attached to a piston rod of a pressure medium cylinder, said pressure medium cylinder being attached on the other side member with the piston rod directed downward.
Claim 4
Dependent Claim
29 words
The device as defined in claim 1, wherein the damping means comprises shock absorbers, which are directed inward to the cradle at the central portion of the driver's chair.
Claim 5
Dependent Claim
19 words
The device as defined in claim 1, wherein three pulleys of the cradle are in contact with each wire.
Claim 6
Dependent Claim
45 words
The device as defined in claim 2, wherein on the side member of the carrying frame where the wires are secured resiliently, each wire runs over two pulleys attached to said member, the planes of rotation of the two pulleys being perpendicular to each other.
Claim 7
Dependent Claim
20 words
The device as defined in claim 1, wherein the resiliently secured ends of the wires are connected to a spring.
Claim 8
Dependent Claim
37 words
The device as defined in claim 2, wherein the pressure medium cylinder is provided with a supply line including a throttle valve, and a hole being located in the cylinder wall at about half the cylinder height.
References Cited (Backward Citations)
US1599555A
Cited
US1774555A
Cited
US2637368A
Cited
US2707986A
Cited
US3099261A
Cited
US3986748A
Cited
US4128217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |