Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1985-07-18
1987-02-03
Staab, Lawrence
Machine element or mechanism
Gearing
Directly cooperating gears
74498, B62D 312
Patent
active
046401482
ABSTRACT:
In a steering mechanism of the rack-and-pinion type including a pinion shaft rotatably mounted within a gear housing and a rack member axially slidably carried on the gear housing and being in mesh with the pinion shaft, a guide member is slidably disposed within a radial cylinder portion of the gear housing and has a thrust surface for slidable engagement with the rear surface of the rack member, and a compression spring is interposed between the guide member and a closure member threaded into the radial cylinder portion to bias the guide member toward the rack member. The rack member is formed at the rear portion thereof with an axial cam groove, a cam follower element is slidably disposed within an axial bore of the guide member and engaged at one end thereof with the axial cam groove of the rack member to cause rotation of the rack member in its circumferential direction, and a piston is slidably disposed within a counter bore in the closure member to form a pressure chamber for connection to a hydraulic pressure source and engaged at one end thereof with the cam follower element to effect movement of the cam follower element toward the rack member in accordance with a hydraulic pressure applied thereto in the pressure chamber.
REFERENCES:
patent: 3897845 (1975-08-01), Von Lowis of Menar
Staab Lawrence
Toyota Jidosha & Kabushiki Kaisha
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