Machine element or mechanism – Control lever and linkage systems – Multiple controlled elements
Patent
1991-12-27
1993-03-09
Braun, Leslie A.
Machine element or mechanism
Control lever and linkage systems
Multiple controlled elements
74483R, F16H 5900, F16H 6100
Patent
active
051918064
ABSTRACT:
In a motor vehicle gearbox the selector rods (30-33) carrying the forks which actuate the gear coupling devices are disposed with their axes (30a-33a) at the same distance from the axis (17) of the gearbox shaft with which the coupling devices are associated. When one of the rods is moved away from its neutral position the other rods are locked in the neutral position by locking means (18) including a first series of locking dowels (34) slidable in separate substantially parallel seats (35) formed in the gearbox casing, and cooperating with respective notches (30b-33b) provided on the selector rods. The said seats (35) open into a common cylindrical cavity (36), extending transversely thereto, in which there is provided a train of locking pins (37) resiliently thrust against one another. When a selector rod is actuated the associated locking dowel (34) projects into the said common cavity (36) causing a displacement of the train of auxiliary locking pins (37) such that these latter obstruct the exits from the seats (35) of the locking dowels (34) associated with the other selector rods.
REFERENCES:
patent: 3389616 (1968-06-01), Forekas
patent: 4467665 (1984-08-01), Katayama et al.
patent: 4550628 (1985-11-01), Yarnell
patent: 4782719 (1988-11-01), Yarnell
Braun Leslie A.
Ferrari SpA
Ta Khoi Q.
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