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    • 5. 发明授权
    • Rotary unit having clutch function
    • 具有离合器功能的旋转单元
    • US5664653A
    • 1997-09-09
    • US571488
    • 1995-12-13
    • Masahiro KuritaKenichi IchikawaMasakazu Doumoto
    • Masahiro KuritaKenichi IchikawaMasakazu Doumoto
    • F16D41/07F16D15/00F16D41/06
    • F16D41/07
    • A rotary unit with a built-in clutch which is short in its axial length. The rotary unit has an inner member having an outer periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the raceway groove, and a cylindrical outer member having an inner periphery formed with a raceway groove and a pair of cylindrical surfaces on both sides of the groove. A retainer mounted between the inner and outer members has a plurality of circumferentially spaced pockets each housing a rolling member and sprag housing recesses provided alternately with the pockets. In each recess is received a sprag having both ends thereof resting on the opposing cylindrical surfaces and biased by a resilient member so that its inner and outer arcuate surfaces contact the cylindrical surfaces. By arranging the sprags and the rolling members alternately with each other in the circumferential direction, it is possible to reduce the entire axial length of the rotary unit.
    • 带内置离合器的旋转单元,轴向长度短。 旋转单元具有内部构件,其外周形成有轨道槽和滚道槽两侧的一对圆筒面,以及圆筒状外构件,其内周形成有轨道槽和一对圆筒面 在槽的两侧。 安装在内部和外部构件之间的保持器具有多个周向间隔开的凹穴,每个凹部容纳滚动构件和与凹穴交替设置的楔形物容纳凹部。 在每个凹部中接收有楔形物,其两端搁置在相对的圆柱形表面上,并被弹性构件偏压,使得其内部和外部弓形表面接触圆柱形表面。 通过在圆周方向上交替地布置楔子和滚动构件,可以减小旋转单元的整个轴向长度。
    • 7. 发明授权
    • Torque limiter
    • 扭矩限制器
    • US5271486A
    • 1993-12-21
    • US702116
    • 1991-05-16
    • Yuji OkamotoMasahiko KataokaKenichi IchikawaShoji Itomi
    • Yuji OkamotoMasahiko KataokaKenichi IchikawaShoji Itomi
    • F16D41/066F16D7/06F16D41/06
    • F16D41/064
    • A torque limiter having an outer ring with a plurality of cam surfaces and spring supporting surfaces formed on an inner peripheral surface, an inner member mounted in the outer ring, and a plurality of rollers mounted between the cam surfaces and the inner member. Springs supported on the spring supporting surfaces bias the rollers in a direction to bite into the cam surfaces and the inner member. The springs have a predetermined spring force which is sufficient to maintain the rollers in wedging engagement between the cam surfaces and the inner member when a turning torque for turning the inner member in a direction to urge the rollers out of the wedging engagement is applied to the inner member, but only until the applied torque reaches a predetermined value.
    • 一种扭矩限制器,其具有形成在内周面上的多个凸轮表面和弹簧支撑表面的外圈,安装在外圈中的内部构件以及安装在凸轮表面和内部构件之间的多个辊。 支撑在弹簧支撑表面上的弹簧使辊沿着咬入凸轮表面和内部构件的方向偏置。 弹簧具有预定的弹簧力,该弹簧力足以使滚子在凸轮表面和内部构件之间形成楔入接合,当用于将内部构件沿着将辊推出楔形接合的方向转动的转动扭矩施加到 内部构件,但是直到施加的扭矩达到预定值。