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Patent Searching and Data


Title:
VEHICLE WEIGHT MEASUREMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/003471
Kind Code:
A1
Abstract:
The present invention includes: a bottom plate (200) that contacts an arm of a suspension device; a piston (300) that is capable of pressing a diaphragm (230), which forms an oil chamber (201), the piston being on the upper-surface side of the bottom plate; and a pressure sensor (400) that detects the pressure of a measurement fluid R in the oil chamber, the pressure sensor being on the lower-surface side of the bottom plate. The bottom plate has a mechanism for stopping the rotation of the arm of the suspension device in the vicinity of the pressure sensor. A hanging rim part (504a) is formed on a flange part (302) of the piston. A gap is formed between the flange part and the bottom plate. The bottom plate is provided with a step part (207) aligned with the hanging rim part. A stopper ring (320) provided so as to cover the step part from the hanging rim part is provided. A projecting part (300a) of the piston that fits with a notch part (322) of the stopper ring, and a projection part (205b) that fits with the notch part so as to be capable of moving in the longitudinal direction and projects from the upper-surface side, are also provided.

Inventors:
HIKIDA Masafumi (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
MATSUDA Yasuyuki (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
SUZUKI Eisaku (5-50 Kugenumashinmei 1-chome, Fujisawa-sh, Kanagawa 01, 〒2518501, JP)
Application Number:
JP2017/045839
Publication Date:
January 03, 2019
Filing Date:
December 20, 2017
Export Citation:
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Assignee:
NSK LTD. (6-3 Ohsaki 1-chome, Shinagawa-ku Tokyo, 60, 〒1418560, JP)
International Classes:
G01G19/10
Domestic Patent References:
WO2017098814A12017-06-15
WO2016052106A12016-04-07
Foreign References:
JP2017015680A2017-01-19
US5979218A1999-11-09
JP2017227634A2017-12-28
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
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