会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Temperature compensated magnetostrictive piston position detector
    • 温度补偿型磁致伸缩活塞位置检测器
    • US5198761A
    • 1993-03-30
    • US655369
    • 1991-02-28
    • Hisayoshi HashimotoMorio TamuraKen Ichiryuu
    • Hisayoshi HashimotoMorio TamuraKen Ichiryuu
    • F15B15/28G01B7/02G01D5/247
    • G01B7/02F15B15/28G01D5/247B60G2202/41B60G2400/25F15B2215/305
    • A piston cylinder device having a piston stroke measurement includes a cylinder tube (1) having an inner tube (2) made of a nonmagnetic material and an outer tube (3) formed on the outer peripheral surface of the inner tube and made of a fiber-reinforced resin material. A piston (76) fixed to a rod (75) is disposed slidably inside the cylinder tube. A stroke detector is composed of a position indicating magnet (80) disposed in the piston and an elongated sensor (81) disposed in the cylinder tube. The elongated sensor includes a thin elongated pipe (82) extending along the cylinder tube between both of its ends and holds at least one magnetostriction line (87) having a large magnetostriction coefficient, a driving coil (84) wound on at least one of the ends of the thin elongated pipe. A pulsed input current to the drive coil causes magnetostriction phenomenon on the magnetostriction line generating an ultrasonic wave. A detecting coil (86) wound on the thin elongated pipe in a predetermined length separately from the driving coil induces a detection signal generated by reverse magnetostriction when the ultrasonic wave passes by the position of the magnetostriction line corresponding to the position indicating magnet. Also, at least one pin-like magnet (20A, 42A) for correcting a measurement error due to a temperature change of the stroke detector, and disposed at a position adjacent to the detecting coil (86) and more inward in the axial direction than both ends of the detection coil are fixed to both ends of the cylinder tube (1).
    • 8. 发明授权
    • Shock absorbing device for hydraulic cylinder
    • 液压缸减震装置
    • US4517878A
    • 1985-05-21
    • US410954
    • 1982-08-24
    • Hisayoshi HashimotoMorio Tamura
    • Hisayoshi HashimotoMorio Tamura
    • F15B15/22
    • F15B15/222F15B15/22
    • A shock absorbing device for a hydraulic cylinder including a shock absorbing hole formed in an end wall of cylinder, a passageway having a port opening in the shock absorbing hole at its inner peripheral surface and a shock absorbing member attached to the piston and aligned with the shock absorbing hole so that it enters the hole during shock absorbing stroke. During movement of the shock absorbing member, it throttles the flow of fluid in the hole to perform a first stage shock absorption, then throttles the flow of fluid through the port to perform a second stage shock absorption, and at last compresses the fluid in the bottom of the hole to perform a third stage shock absorption.
    • 一种用于液压缸的减震装置,包括形成在气缸的端壁中的减震孔,在其内周面处具有在减震孔中的开口的通道和附接到活塞并与活塞对准的冲击吸收构件 吸震孔,使其在冲击吸收冲程期间进入孔。 在冲击吸收构件的移动过程中,它节流孔中的流体流动以进行第一阶段减震,然后通过端口节流流体以进行第二阶段减震,并且最后压缩流体 底部的孔进行第三阶段的减震。