EP0133588A2
Expired / Lapsed
EP
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Vibration isolating device and system
Assignee: Bridgestone Corp
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Filing: 1984-08-14
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Granted: —
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Expires: 2004-08-14
Abstract
Abstract A vibration isolating device is disclosed which comprises two vibration-damping liquid chambers (24A,24B), and a partition member (30) interposed between the two liquid chambers (24A,24B) and provided with a restricted passage (42) therein. In this device, the partition member (30) comprises a pair of abutting plate members (32,34) at least one of which is provided with a depression (36) for defining the restricted passage (42) between the abutting plate members (32,34).
Inventors
- 👤 Takuya Dan
- 👤 Nobuaki Fujiwara
- 👤 Hiroshi Kojima
- 👤 Michihiro Orikawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 17:13
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/08; F16F13/10; F16F13/105
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
87 words
A vibration isolating device comprising two vibration-damping liquid chambers (24A,24B), and a partition member (30;50;100;120) interposed between said two liquid chambers (24A,24B) and provided with a restricted passage (42;112;136) therein, characterised in that said partition member (30;50;100;120) comprises a pair of abutting plate members (32,34;52,54;72,74;102,104;122, 124), at least one of which is provided with a depression (36;106;132) for defining said restricted passage (42;112;136) in the abutting of said plate members (32,34;52,54;72,74;102,104;122,124), and each of which is provided with an opening (38,40;108,110;130,134) communicating to said restricted passage (42;112;136).
Claim 2
Dependent Claim
87 words
A vibration isolating device comprising two vibration-damping liquid chambers (24A,24B), and a partition member (30;50;100;120) interposed between said two liquid chambers (24A,24B) and provided with a restricted passage (42;112;136) therein, characterised in that said partition member (30;50;100;120) comprises a pair of abutting plate members (32,34;52,54;72,74;102,104;122, 124), at least one of which is provided with a depression (36;106;132) for defining said restricted passage (42;112;136) in the abutting of said plate members (32,34;52,54;72,74;102,104;122,124), and each of which is provided with an opening (38,40;108,110;130,134) communicating to said restricted passage (42;112;136).
Claim 3
Dependent Claim
27 words
A vibration isolating device according to claim 1 characterised in that said partition member (30;50;100; 120) further comprises a movable means (62;126) arranged in a part thereof.
Claim 4
Dependent Claim
86 words
A vibration isolating device according to claim 1 or 2 characterised in that one plate member (52) is provided near the outer peripheral portion with said depression (36) and at the central portion with plural small holes (56), and the other plate member (54) is raised at the central portion and provided at the raised portion with plural small holes (58), and a disc-like membrane (62) is placed in a space defined between the central portions of said plate members (52,54) in the abutting region thereof.
Claim 5
Dependent Claim
99 words
A vibration isolating device according to claim 1 characterised in that one plate member (72) is provided at the outer peripheral portion with said depression (36) and a ring-like depression (76) adjoining inward to said depression (36) and at the central portion with a central hole (78), and the other plate member (74) is provided with a ring-like depression (76') and a central hole (78') aligned with said ring-like depression (76) and central hole (78) in the one plate member (72), and a disc-like membrane (80,82) is secured at the outer periphery to each of said ring-like depressions (76,76').
Claim 6
Dependent Claim
73 words
A vibration isolating device according to claim 2 characterised in that one plate member (122) is provided near the outer peripheral portion with said depression (132) and at the central portion with a circular hole (128), and the other plate member (124) is provided at the central portion with a circular hole (128'), and a movable disc body (126) is movably retained in the central holes (128,128') by the abutting plate members (122,124).
Claim 7
Dependent Claim
38 words
A vibration isolation system comprising a vibration source mounted on a mounting member characterised in that at least one device according to any one of claims 1 to 5 is interposed between said source and said mounting member.
Claim 8
Dependent Claim
24 words
A system according to claim 6 characterised in that said source is an internal combustion engine and said mounting member is a vehicle chassis.
References Cited (Backward Citations)
No citation records indexed.
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