Land vehicles – Wheeled – Running gear
Patent
1975-07-02
1976-04-13
Goodman, Philip
Land vehicles
Wheeled
Running gear
267 65D, B60G 1126
Patent
active
039500080
ABSTRACT:
The invention provides a control system consisting of a delay mechanism in conjunction with two electrical limit switches for controlling the operation of an electrical circuit in dependence upon the direction of movement of a mechanical component and the amplitude and duration of such movement. The invention is characterised in that the delay mechanism includes an elongate flexible torsion or leaf spring mounted for oscillatory movement about a pivot axis, a device for damping such oscillatory movement at the pivot axis, the leaf or torsion spring being connected directly or indirectly at a location remote from the pivot axis to the mechanical component. The electrical limit switches are located one at each side of the leaf or torsion spring at locations spaced from the pivot axis by a distance less than the distance between the pivot axis and the location where the leaf or torsion spring is directly or indirectly connected to the mechanical component.
REFERENCES:
patent: 2943851 (1960-07-01), Sampietro
patent: 3584893 (1971-06-01), Tuczek
patent: 3606375 (1971-09-01), Jackson
patent: 3666286 (1972-05-01), Engfer
patent: 3704895 (1972-12-01), Remaud
patent: 3729211 (1973-04-01), Engfer
patent: 3741582 (1973-06-01), Eckert
patent: 3857580 (1974-12-01), Keijzer
patent: 3873123 (1975-03-01), Joneleit
patent: 3891241 (1975-06-01), Bainbridge
Carroll John A.
Goodman Philip
Moulton Developments Limited
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