PROBLEM TO BE SOLVED: To provide a weight measurement device of a vehicle having a structure which supports the weight of the vehicle so as to be freely oscillated, and has constant attenuation performance necessary for a steering system, and to prevent the overloading of the vehicle.SOLUTION: A weight measurement device of a vehicle comprises a diaphragm 11 which covers an opening region 9d of a groove part 9c of an attachment part 7, and forms an oil chamber 9 having a prescribed space together with the groove part, and a pressure sensor 21 which can detect a pressure change of a measurement fluid R in the oil chamber. The weight measurement device also comprises a first piston 43 which can press the diaphragm, a second piston 44 which can press the first piston, and a bearing unit 50 which is interposed between a spring bush 47 for receiving one end of a spring of a suspension device and the second piston, and constituted so as to be relatively rotatable. The bearing unit comprises a thrust needle bearing 60 for supporting a load of the suspension device in a longitudinal direction so as to be freely oscillated, and a slide bush 75 which generates constant attenuation at oscillation, does not receive the load in the longitudinal direction, and receives a load in a radial direction.SELECTED DRAWING: Figure 1
【課題】車体重量を揺動自在に支持するとともに、操舵系に必要な一定の減衰性を有する構造の車両の重量測定装置を提供し、車両の過積載を防止する。【解決手段】取付部7の溝部9cの開口領域9dを覆い、溝部とともに所定空間の油室9を形成するダイアフラム11と、油室の測定流体Rの圧力変化を検出し得る圧力センサ21が備えられ、ダイアフラムを押圧可能な第1のピストン43と、第1のピストンを押圧可能な第2のピストン44と、懸架装置のスプリングの一端を受けるスプリングブッシュ47と第2のピストンとの間に介在され、相対回転可能に構成されている軸受ユニット50とを備え、軸受ユニットは、懸架装置の長さ方向の荷重を揺動自在に支持するスラストニードル軸受60と,揺動に一定減衰を発生させ、かつ長さ方向の荷重は受けず径方向の荷重を受けるすべりブッシュ75を備える。【選択図】図1
WEIGHT MEASUREMENT DEVICE OF VEHICLE
車両の重量測定装置
2017-12-28
Patent
Elektronische Ressource
Japanisch
PASSENGER'S WEIGHT MEASUREMENT DEVICE FOR VEHICLE SEAT
Europäisches Patentamt | 2015
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