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.:

US 8443689 B1

PDF
Full Text
Expired
Date of Patent:
May. 21, 2013

Filed:

Jul. 22, 2009
Applicants:

Akitake Kawakubo, Nara, JP;

Yoshinori Suzuki, Okazaki, JP;

Hirofumi Ishimi, Katsuragi, JP;

Inventors:

Akitake Kawakubo, Nara, JP;

Yoshinori Suzuki, Okazaki, JP;

Hirofumi Ishimi, Katsuragi, JP;

Assignee:

JTekt Corporation, Osaka-Shi, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A rack shaft support device includes: a rack shaft support member that slidably supports a rack shaft; a sealing member fixed to an inlet port of a retention hole formed in a housing; an intermediate member that is interposed between the rack shaft support member and the sealing member; a torsion spring that couples the intermediate member so that torque is transmitted to the intermediate member; a torsion amount adjusting member that is attached to the sealing member in such a manner that a position of the torsion amount adjusting member with respect to the sealing member is adjustable and adjusts a torsion amount of the torsion spring; and a cam mechanism that converts a rotation force of the intermediate member induced by untwisting of the torsion spring into a force by which the intermediate member pushes the rack shaft support member.


Find Patent Forward Citations

Kawakubo, Akitake. (2013). Rack shaft support device and torsion amount adjustment method for torsion spring used therein (U.S. Patent No. 8443689). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8443689

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