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    • 8. 发明授权
    • Shock absorbing bumper
    • 减震器
    • US3715114A
    • 1973-02-06
    • US3715114D
    • 1971-10-07
    • GEN MOTORS CORP
    • THORSBY CWHITE R
    • B60R19/32B61F19/02B61F19/04F16F9/30
    • B60R19/32
    • An energy absorbing support unit for an automobile bumper bar, the support unit including a pair of telescopically related tube members adapted for disposition between the bumper bar and the vehicle chassis, an orificed piston rigidly attached to one tube member and adapted to effect throttled flow of an incompressible medium situated in a chamber in the other tube member to effect energy absorption, a free piston slidably mounted in the one tube member and resiliently biased toward a normal position corresponding to a fully extended position of the one tube member, the free piston urging reverse flow of the incompressible medium to provide a self-restoring preload on the one tube member, and a reciprocating valve member on the free piston movable between an open position and a closed position partially obstructing the piston orifices to increase the rate of energy absorption. The free piston, in the normal position thereof, engages the valve member to positively locate the latter in the open position whenever the one tube member is in its fully extended position.
    • 一种用于汽车保险杠杆的能量吸收支撑单元,所述支撑单元包括适于配置在所述保险杠杆和所述车辆底盘之间的一对可伸缩相关的管构件,刚性地连接到一个管构件并适于实现节流的 一个不可压缩的介质,位于另一个管件中的腔室中以实现能量吸收;一个可滑动地安装在一个管件中的自由活塞,弹性偏压到一个对应于一个管件的完全伸出位置的法向位置, 不可压缩介质的反向流动以在一个管构件上提供自恢复预载荷,以及在自由活塞上的往复阀构件,其可在打开位置和闭合位置之间移动,从而部分地阻塞活塞孔以增加能量吸收率。 无论何时一个管件处于其完全伸出位置,自由活塞在其正常位置处接合阀构件,以将阀门主体定位在打开位置。
    • 10. 发明授权
    • Wheel and track system
    • 车轮和轨道系统
    • US4723807A
    • 1988-02-09
    • US855923
    • 1986-04-25
    • David M. PruettRobert D. Brown
    • David M. PruettRobert D. Brown
    • B61B13/00B60B17/00B61F19/02E01B25/00
    • B61F19/02B60B17/00E01B25/00
    • A wheel and track system wherein the track comprises a base and a pair of spaced apart upstanding sides is provided for guiding movement of a vehicle having four wheels over a controlled path and at least two of the wheels are mounted for rolling movement over the base and between the spaced apart upstanding sides and wherein a scuff plate is provided between the two wheels and the upstanding sides of the track so that there can be relative rotational movement between the scuff plates and the wheel and relative movement between the scuff plates and the upstanding sides of the track in the event of contact between the scuff plates and the upstanding sides of the track so as to minimize any tendency for the wheel to ride up the upstanding side and also to protect the upstanding side and the wheel from damage.
    • 一种车轮和轨道系统,其中轨道包括基座和一对间隔开的直立侧面,用于引导具有四个车轮的车辆在受控路径上的运动,并且至少两个车轮安装成用于在基座上滚动运动, 在间隔开的直立侧面之间,并且其中在两个轮子和轨道的直立侧面之间设置刮板,使得在磨损板和车轮之间可以存在相对的旋转运动,并且在磨损板和直立侧面之间的相对运动 在履带板与轨道的直立侧面之间接触的情况下,以便尽可能减少车轮向上垂直方向的任何趋势,并且还可以保护直立侧和车轮免受损坏。