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:
Feb. 18, 2014
Filed:
Jan. 31, 2012
Junichiro Suzuki, Kasugai-shi, JP;
Junichiro Suzuki, Kasugai-shi, JP;
Tokai Rubber Industries, Ltd., Komaki-shi, Aichi-ken, JP;
Abstract
A vibration damping device includes a vulcanized rubber molding and a resin molding integrally formed with the vulcanized rubber molding. The resin molding includes a sandwiched molding having a core layer and skin layers. The skin layers sandwich the core layer. The skin layer includes a resin composition (A) containing a first thermoplastic resin and an inorganic filler. The core layer includes a resin composition (B) containing a second thermoplastic resin and an inorganic filler. A volume ratio of the skin layers is 40 to 70% of the entire molding, and a bending modulus (E1) and a maximum bending strain (ε1) of the skin layers, and a bending modulus (E2) and a maximum bending strain (ε2) of the core layer satisfy the following expressions (1) and (2):1<(1/ε1)<(2/ε2)<10  (1)ε1/ε2>1  (2).