Manually power mechanical actuator for parallel auxiliary spring

Details Manually power mechanical actuator for parallel auxiliary spring Manually power mechanical actuator for parallel auxiliary spring

1989-12-26

1991-06-18

Bertsch, Richard A.

Land vehicles

Wheeled

Running gear

280715, 267260, B60G 1102, B60G 1100

Patent

active

050244639

ABSTRACT:
Selectively engagable auxiliary leaf springs (38 or 142) for vertically supporting a vehicle chassis (32) on an axle assembly (22 or 102) in parallel with main suspension springs (34 or 114). In three of the disclosed embodiments, both ends (38b,38a) of the auxiliary leaf springs (38) are pivotally attached. In two other embodiments, one end (142a) of each auxiliary leaf spring (142) is pivotally attached and the other end (142b) is rigidly affixed in cantilever fashion. A manually operated hand crank (60) or ratchet mechanism (87) employed to drive a speed reducer actuator (62) to selectively enable or increase load supporting of the auxiliary leaf springs.

REFERENCES:
patent: 1362037 (1920-12-01), Peterson
patent: 1564088 (1925-01-01), Matthews
patent: 2632639 (1953-03-01), Proske
patent: 2714003 (1955-07-01), Focht
patent: 2825578 (1958-03-01), Walker
patent: 3430976 (1969-03-01), Vautier
patent: 3484901 (1969-12-01), Draves
patent: 3869140 (1975-03-01), Allison
patent: 4397478 (1983-08-01), Jensen et al.
patent: 4456232 (1984-06-01), Shinbori et al.

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