JPH03118356U

JPH03118356U -

Info

Publication number: JPH03118356U
Application number: JP2747490U
Authority: JP
Priority date: 1990-03-16
Filing date: 1990-03-16
Publication date: 1991-12-06
Anticipated expiration: 2005-03-16
Also published as: JPH0738765Y2

Description

[Brief explanation of drawings]

第１図は本考案にかかる可変剛性ブツシユ装置
の第１の実施例を示す−線にそつた断面図、
第２図は第１図実施例、第４図実施例および第５
図実施例の−線にそつた断面図、第３図ａ，
ｂはともに第１図実施例の動作状態を示す断面図
、第４図は本考案にかかる可変剛性ブツシユ装置
の第２の実施例を示す−線にそつた断面図、
第５図は本考案にかかる可変剛性ブツシユ装置の
第３の実施例を示す−線にそつた断面図、第
６図は従来例を示す断面図、第７図ａ，ｂはとも
に第６図従来例の動作状態を示す断面図である。１０……可変剛性ブツシユ装置、２０……筒体
、２１Ａ，２１Ｂ……段部、２２……ストツパ、
２３……Ｃリング、２３Ａ……配設溝、２４……
ダンパ、２５……停止リング、２５Ａ……配設溝
、３０……ボデイ部材、３０Ａ，３０Ｂ……貫通
孔、３１Ａ〜３１Ｄ……段部、３２……内側スリ
ーブ、３３……ブツシユ、３４……外側スリーブ
、３５……パツキング部材、３５Ａ……配設溝、
３６Ａ，３６Ｂ……ピストン、３７……停止ナツ
ト、３８……パツキング部材、３８Ａ……配設溝
、３９……Ｏリング、３９Ａ……配設溝、４１…
…流体供給ポート、４１Ａ……案内通路、４２…
…流体回収ポート、４２Ａ，４２Ｂ……案内通路
、４３Ａ，４３Ｂ，４４……逃溝、４５……外周
溝、４６，４７……内周溝、５１……外側スリー
ブ、５２……ブツシユ、５３……内側スリーブ、
５３ａ……ネジ部。 FIG. 1 shows a first embodiment of the variable stiffness bushing device according to the present invention - a sectional view taken along a line;
Figure 2 shows the embodiment in Figure 1, the embodiment in Figure 4, and the embodiment in Figure 5.
A sectional view taken along the - line of the embodiment, FIG.
b is a sectional view showing the operating state of the embodiment shown in FIG. 1; FIG.
FIG. 5 is a cross-sectional view along the line showing a third embodiment of the variable rigidity bushing device according to the present invention, FIG. 6 is a cross-sectional view showing a conventional example, and FIGS. FIG. 3 is a cross-sectional view showing the operating state of a conventional example. 10 ... Variable rigidity bushing device, 20 ... Cylindrical body, 21A, 21B... Step portion, 22... Stopper,
23... C ring, 23A... Installation groove, 24...
Damper, 25... Stop ring, 25A... Arrangement groove, 30 ... Body member, 30A, 30B... Through hole, 31A to 31D... Step portion, 32... Inner sleeve, 33... Bush, 34... …outer sleeve, 35…packing member, 35A…arrangement groove,
36A, 36B... Piston, 37... Stop nut, 38... Packing member, 38A... Arrangement groove, 39... O-ring, 39A... Arrangement groove, 41...
...Fluid supply port, 41A...Guide passage, 42...
...Fluid recovery port, 42A, 42B...Guide passage, 43A, 43B, 44...Escape groove, 45...Outer circumferential groove, 46, 47...Inner circumferential groove, 51...Outer sleeve, 52...Bushing, 53 ...inner sleeve,
53a...screw part.

Claims

[Scope of utility model registration request]

The cylindrical body is disposed so as to be movable relative to the through hole of the body member via a bushing, and the piston is brought into contact with pressurized fluid against the stepped portion of the body member and the stepped portion of the cylindrical body. In a variable-rigidity bushing device in which the rigidity between the body member and the cylindrical body is changed by suppressing relative movement between the body member and the cylindrical body 20 , the end faces of the pistons 36A and 36B are in contact with each other. Escape grooves 43A, 4 are provided in at least a portion of the circumferential direction of at least one of the step portion 21B and the step portions 31B, 31D of the body member 30 .
3B, 44. A variable rigidity bushing device.