Rack and pinion steering device
AssigneeHitachi, Ltd.
InventorsKohtaro Shiino, Toshiro Yoda
Life of this patent
Estimating the term…
Abstract
A pinion shaft rotated by a steering wheel has a pinion gear formed thereon. A rack bar has at a front surface thereof a toothed rack portion meshed with the pinion gear of the pinion shaft. A rotating member is arranged to support a rear surface of the rack bar while being permitted to rotate when the rack bar moves axially. A biasing mechanism that biases the rotating member toward an actually meshed portion between the toothed rack portion and the pinion gear. A supporting member is arranged to slidably support the rear surface of the rack bar.
Claims27
A rack and pinion steering device comprising:
- a pinion shaft being adapted to be rotated by a steering wheel, the pinion shaft having a pinion gear formed thereon;
- a rack bar having at a front surface thereof a toothed rack portion meshed with the pinion gear of the pinion shaft;
- a rotating member being arranged to support a rear surface of the rack bar while being permitted to rotate when the rack bar moves axially;
- a first biasing mechanism biasing the rotating member toward an actually meshed portion between the toothed rack portion of the rack bar and the pinion gear of the pinion shaft;
- and
- a supporting member being arranged to slidably support the rear surface of the rack bar.
A rack and pinion steering device comprising:
- a pinion shaft being adapted to be rotated by a steering wheel, the pinion shaft having a pinion gear formed thereon;
- a rack bar having at a front surface thereof a toothed rack portion meshed with the pinion gear of the pinion shaft;
- a rotating member being arranged to support a rear surface of the back bar while being permitted to rotate when the rack bar moves axially;
- a biasing mechanism biasing the rotating member toward an actually meshed portion between the toothed rack portion of the rack bar and the pinion gear of the pinion shaft;
- and
- a sliding member slidably contacing the rear surface of the rack bar to support the rack bar.
A rack and pinion steering device comprising:
- a pinion shaft being adapted to be rotated by a steering wheel, the pinion shaft having a pinion gear formed thereon;
- a rack bar having at a front surface thereof a toothed rack portion meshed with the pinion gear of the pinion shaft;
- a first supporting member being arranged to support a rear surface of the rack bar with a predetermined biasing force;
- and
- a second supporting member being arranged at a back side of the rack bar and constructed to control movement of the rack bar when the rack bar is applied with an external force greater than the predetermined biasing force.
Dependencies are inferred from the claim text.