JPS5818143U

JPS5818143U - Vibration isolator

Info

Publication number: JPS5818143U
Application number: JP11318481U
Authority: JP
Inventors: 寿彦柿本
Original assignee: 日産自動車株式会社
Priority date: 1981-07-29
Filing date: 1981-07-29
Publication date: 1983-02-04

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の防振体の断面図、第２図は本考案の防振
体の要部を示す断面図、第３図は従来および本考案の減
衰特性を比較して表わした減衰特性図である。１・・・防振体、２，２ａ・・・枠体、３・・・弾性部
材、４・・・流体室、５・・・仕切板、６・・・副次室
、７，７ａ・・・オリフィス、７ｂ、　　７ｃ・・・開
口端部、１０・・・案内部。９０−Figure 1 is a sectional view of a conventional vibration isolator, Figure 2 is a sectional view showing the main parts of the vibration isolator of the present invention, and Figure 3 is a comparison of the damping characteristics of the conventional and the present invention. It is a diagram. DESCRIPTION OF SYMBOLS 1... Vibration isolator, 2, 2a... Frame body, 3... Elastic member, 4... Fluid chamber, 5... Partition plate, 6... Sub-chamber, 7, 7a. ... Orifice, 7b, 7c... Opening end, 10... Guide part. 90-

Claims

[Scope of utility model registration request]

Two mutually independent frames and disposed between these frames,
and an elastic member fixed to both of the frames, a hollow fluid chamber formed within the elastic member and filled with fluid, and a sub-chamber separated from the fluid chamber via a partition plate; an orifice formed in a partition plate to communicate between the fluid chamber and the sub-chamber, one of the two frames facing the vibrating body;
The other is attached to the vibrated body side, and the vibration transmitted from the vibrating body side to the vibrated body side is suppressed by the vibration absorption function of the elastic member itself and the damper action when the fluid passes through the orifice. A vibration isolator characterized in that a guide portion whose diameter increases outward is formed at the opening end of the orifice.