Liquid sealed type vibration isolator
US6435487B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Jun 22, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F13/107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present invention aims at providing a liquid sealed type vibration isolator capable of positioning a partition excellently with the construction of the partition simplified, and maintaining stable damping characteristics of an orifice. To meet the requirements, an outer circumferential portion of the partition forming the orifice is made so that the outer circumferential portion defines at least a part of one or two sides of a cross section of the orifice, and a positioning device formed of a partition press fitting or inserting structure with respect to a groove, or a partition engaging structure is provided in a joint portion between the partition and the other orifice forming member with the construction of the partition simplified, whereby it is rendered possible to improve the accuracy of the partition and obtain a desired cross section of the orifice. When an elastic film is provided on the partition so as to reduce a dynamic spring constant in a high-frequency region, the steps of forming one cylindrical partition and a disc type elastic film separately, forming a positioning bore in a lower surface of a circumferential portion of the elastic film, and positioning the pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.