Coil spring modeling apparatus and method of the same

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United States of America Patent

PATENT NO 9811067
SERIAL NO

14620855

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Abstract

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A coil spring modeling apparatus includes a first attachment member disposed on a lower spring seat, a second attachment member disposed on an upper spring seat, an actuator unit formed of a Stewart-platform-type parallel mechanism, a spring height detection mechanism, and a controller. The spring height detection mechanism is constituted of displacement gauges such as a linear variable differential transformer. These gauges are provided on hydraulic cylinders, and detect amounts of displacement relative to the reference lengths of the hydraulic cylinders, respectively. A hydraulic pressure supply device is controlled by the controller and supplies fluid pressure according to the displacement detected by the gauges to the respective hydraulic cylinders.

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Patent Owner(s)

Patent OwnerAddress
NHK SPRING CO LTDKANAGAWA KANAGAWA
NHK INTERNATIONAL CORPORATION46855 MAGELLAN DRIVE NOVI MI 48377

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Furukawa, Kazuo Machida, JP 13 121
Moriyama, Senri Yokohama, JP 10 16
Nakamura, Takahiro Yokohama, JP 195 3533
Nishizawa, Shinichi Walled Lake, US 29 117
Sato, Ryuichi Yokohama, JP 103 646

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