Motor vehicles – Power – Having specific motor-to-body-frame relationship
Patent
1979-05-30
1981-04-28
Mitchell, David M.
Motor vehicles
Power
Having specific motor-to-body-frame relationship
180299, 180312, 180297, B60K 504
Patent
active
042639808
ABSTRACT:
In a front-wheel-drive vehicle having a powertrain with a transversely positioned engine and transmission and independent front wheel suspensions each with a control arm, there is provided a cradle forming a subframe supporting the power train and having the control arms pivotally mounted on the cradle. The cradle is cushion mounted on the vehicle body and has the powertrain components cushion mounted on it. The cradle includes side-rails connected by disconnectable front and rear cross-rails, each cross-rail being affixed to respective ones of the side-rails and being disconnectable from the other side-rail forming a substantially L-shaped section of the cradle. The cross-rails can be disconnected so that one of the L-shaped sections of the cradle can be pivoted away from the powertrain. This permits servicing of the powertrain components. Since the front wheels are supported on the side-rails, positioning the cradle is critical to the alignment of the front wheels. Gauge holes are provided for aligning one side-rail relative to the vehicle body. Also one of the cross-rails includes a positioning socket including a ferrule engageable with an aligning recess, one of which is formed in respective portions of one of the cross-rails. One of the cross-rail portions is movable with one of the L-shaped cradle sections which is pivoted away from the powertrain unit. Upon pivotal movement of the one L-shaped cradle section back underneath the powertrain and reassembly of the cross-rail to a side-rail with the socket members in place, the movable side-rail is precisely positioned into its original aligned position thereby retaining alignment of the vehicle front wheels.
REFERENCES:
patent: 792704 (1905-06-01), Harrington
patent: 2231287 (1941-02-01), Fox
patent: 2954998 (1960-10-01), Kushler et al.
patent: 3913696 (1975-10-01), Kennedy et al.
Atkinson, Jr. Frank
Harlow, Jr. John H.
Stramer Caramello N.
General Motors Corporation
Mitchell David M.
Phillips R. L.
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