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:
Apr. 09, 2019
Filed:
Oct. 16, 2017
Nhk Spring Co., Ltd., Yokomaha-shi, JP;
Yoshitaka Sasaki, Yokohama, JP;
Yuji Tokiwa, Yokohama, JP;
Katsuji Goto, Yokohama, JP;
Yoshinori Otake, Yokohama, JP;
Masakazu Ando, Yokohama, JP;
NHK Spring Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A vibration damping device comprises: a spindle member through which a shaft portion is inserted, the spindle member being movable along a length direction of the shaft portion; a first coil spring disposed between the spindle member and one end portion of the shaft portion in the length direction, the one end portion of the shaft portion being inserted through the first coil spring, and the first coil spring urging the spindle member toward a side of another end portion of the shaft portion in the length direction; and a second coil spring disposed between the another end portion of the shaft portion and the spindle member, the another end portion of the shaft portion being inserted through the second coil spring, and the second coil spring urging the spindle member toward a side of the one end portion of the shaft portion.