The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 1987
Filed:
Oct. 24, 1985
Hirotaka Kanazawa, Hiroshima, JP;
Teruhiko Takatani, Hiroshima, JP;
Shigeki Furutani, Hiroshima, JP;
Isamu Chikuma, Gumma, JP;
Satoru Shimada, Gumma, JP;
Hiroshi Eda, Gumma, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A four-wheel steering system comprises a steering wheel; a steering shaft which is connected to the steering wheel to be rotated in response to operation of the steering wheel and is provided with a first pinion fixedly mounted thereon; a rack bar which is supported for sliding motion in the transverse direction of the vehicle body, is provided with a first rack gear in mesh with the first pinion and a second rack gear, and is connected to the right and left front wheels by way of tie rods, a rear wheel turning force taking-out mechanism which includes a second pinion in mesh with the second rack gear on the rack bar and a rod member connected to the second pinion, and which converts the sliding motion of the rack bar into rotation of the rod member; and a rear wheel turning mechanism which is arranged to turn the rear wheels in response to rotation of the rod member. There are provided a first resilient pressing mechanism which presses one of the first and second rack gears, from the rear, towards the pinion in mesh therewith, and a second resilient pressing mechanism which presses the pinion in mesh with the other of the first and second rack gears toward said the other of the first and second rack gears.