Spring devices – Resilient shock or vibration absorber – Including energy absorbing means or feature
Patent
1995-06-28
1996-10-01
Butler, Douglas C.
Spring devices
Resilient shock or vibration absorber
Including energy absorbing means or feature
267219, F16M 500, F16F 1300, B60K 512
Patent
active
055605923
ABSTRACT:
A hydraulic damping device including a main damping body protected by a cylindrical portion with downwardly extending side walls. The damping device includes a flexible membrane which has a step portion, a main liquid chamber, an auxiliary liquid chamber and a partition formed in a cup-shape. A passage is made between the step portion of the flexible membrane and the interior of the partition. The partition divides the liquid chamber into a main liquid chamber and an auxiliary liquid chamber. The partition also includes a hole formed therein, a channel and a concave recess formed on the partition side wall between the hole and the channel. This structure permits the main liquid chamber to be connected to the auxiliary liquid chamber through the hole, the passage and the channel. The membrane is inserted into the interior of a cylindrical portion of the main damping body together with the partition and the damping liquid to define a simply constructed sub-assembly. This sub-assembly is subsequently easily inserted into the interior of a cylindrical portion of the supporting member by pressurized insertion.
REFERENCES:
patent: 4607828 (1986-08-01), Bodin et al.
patent: 5018699 (1991-05-01), Bretaudeau et al.
patent: 5167403 (1992-12-01), Muramatsu et al.
patent: 5178374 (1993-01-01), Maeno
patent: 5209460 (1993-05-01), Bouhours et al.
Fujinami Kyoichi
Shimoda Yoshiki
Yamada Norihiro
Butler Douglas C.
Toyoda Gosei Co,., Ltd.
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