logo

For the Inventor, By the Inventor

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 4815332 B1

PDFFull Text
Date of Patent:
Mar. 28, 1989

Filed:

Oct. 10, 1986

Dual-type damper device

Applicant:
Inventors:

Minoru Serizawa, Komaki, JP;

Yutaka Tazuke, Kasugai, JP;

Assignees:

Tokai Rubber Industries, Ltd., Aichi, JP;

Toyota Jidosha Kabushiki Kaisha, Aichi, JP;

Attorney:

Parkhurst, Oliff & Berridge

Primary Examiner:

Richard E Moore

Assistant Examiner:

Vinh Luong

Int. Cl.
CPC ...
F16F / ;
U.S. Cl.
CPC ...
7457 / ; 74574 ; 464 27 ;
Abstract

A dual-type damper device for damping vibration of a rotation axle, has a damper pulley including a boss portion joined to the rotation axle, a cylindrical portion located radially outwardly of the boss portion, and a connection portion connecting the boss portion and the cylindrical portion. A first damper-mass member is disposed radially outwardly of the cylindrical portion of the damper pulley, such that the first damper-mass member is spaced apart from, and concentric with, the cylindrical portion. A first resilient member is interposed between the cylindrical portion of the damper pulley and the first damper-mass member. A second damper-mass member has a cylindrical shape and is disposed concentrically in an inner space of the cylindrical portion of the damper pulley. A second resilient member is disposed between one of axial ends of the second damper-mass member and a corresponding part of the connection portion of the damper pulley which is opposed to the one axial end of the second damper-mass member, so as to secure the second damper-mass member to the connection portion, the second resilient member being subjected to shear deformation thereof due to relative radial displacement between the second damper-mass member and the connection portion of the damper pulley.

Find Patent Forward Citations

Serizawa, Minoru. (1989). Dual-type damper device (U.S. Patent No. 4815332). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4815332

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…