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:
May. 22, 2001
Filed:
Jan. 04, 2000
Masahiro Kawaguchi, Kariya, JP;
Hirohiko Tanaka, Kariya, JP;
Akifumi Uryu, Kariya, JP;
Masahiko Okada, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, JP;
Abstract
A drive power transmission apparatus including a torsionally deformable spring capable of being torsionally deformed so as to permit a relative rotation between a rotor element and a drive shaft in response to a change in a load torque appearing in a drive-power-receiving unit, a releasing element operable to move the free outer end of the torsionally deformable spring from the power transmitting face of the rotor element when the relative rotation between the rotor element and the drive shaft increases due to an increase in the load torque beyond a predetermined limiting torque, and a mechanical elevation arranged in the rotor element for permitting the free outer end of the torsionally deformable spring to ride thereon to thereby promote separation of the spiral spring from the rotor element in order to interrupt the transmission of drive power.