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    • 92. 发明授权
    • Hydraulic tensioner
    • 液压张紧器
    • US07244204B2
    • 2007-07-17
    • US10846378
    • 2004-05-14
    • Osamu YoshidaHiroshi Hashimoto
    • Osamu YoshidaHiroshi Hashimoto
    • F16H7/08F16H7/22
    • F16H7/0848F16H2007/0806F16H2007/0812F16H2007/0853F16H2007/0859
    • In a hydraulic tensioner, a check valve assembly comprises a synthetic resin ball guide with a check ball movable therein. Oil grooves are provided in the wall of the ball guide, and minimum clearance is allowed between the ball and the wall of the ball guide. The ball is biased toward a metal ball seat formed as a separate element from the ball guide and attached to the ball guide by crimping portions of the synthetic resin of the ball guide over a flange of the seat, using heat fusion. A metal retainer disc, also a separate element, is similarly attached to the ball guide by crimping using heat fusion. A resilient annular lip is formed on the synthetic resin ball guide, and the assembly is press-fit into a plunger-receiving hole in a tensioner housing with the lip in engagement with the wall of the hole.
    • 在液压张紧器中,止回阀组件包括合成树脂球导向件,其中可移动的止回球。 油槽设置在球导向件的壁上,并且允许球和球导向件壁之间的最小间隙。 球被朝向与球引导件形成为单独元件的金属球座偏压,并且通过使用热熔融将球导向件的合成树脂的部分压靠在座的凸缘上而附接到球导向件。 金属保持盘也是单独的元件,通过使用热熔合的卷曲类似地附接到球导向件。 弹性的环形唇形成在合成树脂球导向件上,并且该组件压配合到张紧器壳体中的柱塞接收孔中,其中唇缘与孔的壁接合。
    • 93. 发明申请
    • Plastic hydraulic tensioner
    • 塑料液压张紧器
    • US20070032323A1
    • 2007-02-08
    • US11446285
    • 2006-06-02
    • Osamu Yoshida
    • Osamu Yoshida
    • F16H7/08F16H7/22
    • F16H7/0848F16H2007/0806F16H2007/0812F16H2007/0859
    • A plastic hydraulic tensioner comprises a metal liner insert-molded in a hole in a synthetic resin tensioner body. A protruding plunger, slidable in the liner of the tensioner body is urged in the protruding direction by a compression spring, and the plunger, the liner and the bottom of the lined hole form a high pressure oil chamber. A flat or concave groove is formed on or in the outer peripheral surface of the liner, and the liner is formed with a protrusion extending outward from the flat or groove to engage a part of the synthetic resin of the tensioner body so that the liner is prevented from being pushed out of the tensioner body by oil pressure in the high pressure oil chamber.
    • 塑料液压张紧器包括镶嵌在合成树脂张紧器主体的孔中的金属衬套。 在张紧器本体的衬套中可滑动的突出柱塞通过压缩弹簧在突出方向上被推压,柱塞,衬套和衬里孔的底部形成高压油室。 在衬套的外周表面上或其中形成有平坦或凹槽,衬套形成有从平坦或凹槽向外延伸的突起,以接合张紧器主体的合成树脂的一部分,使得衬套 防止被高压油室中的油压从张紧器体推出。
    • 94. 发明授权
    • Chain tension-imparting device
    • 链张力赋予装置
    • US07037228B2
    • 2006-05-02
    • US10454860
    • 2003-06-05
    • Osamu YoshidaHiroshi Hashimoto
    • Osamu YoshidaHiroshi Hashimoto
    • F16H7/08F16H7/22
    • F16H7/0848F16H2007/0812F16H2007/0853F16H2007/0859
    • A chain tension-imparting device 100 comprises: a plunger 120, which retractably protrudes toward a traveling chain; a housing body 110 in which a plunger sliding hole 111 was formed; a protrusion biasing spring 130, which biases the plunger 120; a cam-receiving ring 140, which is displaced in an opening front end side diameter-increased concave portion 111a in the plunger sliding hole 111; a cam-receiving ring biasing spring 150 for biasing said the cam-receiving ring 140 in the protrusive direction of the plunger 120; a pair of wedge-shaped cam chips 160, 160, which slide on a sloped cam guide groove 141 formed on the cam-receiving ring 140 and engage with a plurality of racks 121, 121 engraved on the outer circumference of the plunger 120; a cam-guiding ring 170, for guide-controlling disengagement of the wedge-shaped cam chips 160; and a seal plate 180, which seals the opening front end side diameter-increased concave portion 111a.
    • 链条张力赋予装置100包括:柱塞120,其朝向行进链可伸缩地突出; 形成有柱塞滑动孔111的壳体110; 突起偏置弹簧130,其偏压柱塞120; 凸轮接收环140,其在柱塞滑动孔111中的开口前端侧直径增大凹部111a中移位; 凸轮接收环偏压弹簧150,用于使凸轮接收环140沿柱塞120的突出方向偏压; 一对在凸轮接收环140上形成的倾斜的凸轮引导槽141上滑动的楔形凸轮件160,160,并与在柱塞120的外圆周上雕刻的多个齿条121,121啮合; 凸轮引导环170,用于引导控制楔形凸轮芯片160的脱离; 以及密封板180,其密封开口前端侧直径增大凹部111a。
    • 96. 发明申请
    • Hydraulic tensioner
    • 液压张紧器
    • US20050227799A1
    • 2005-10-13
    • US11039661
    • 2005-01-19
    • Osamu Yoshida
    • Osamu Yoshida
    • F16H7/08F16H7/22
    • F16H7/0848F16H2007/0806F16H2007/0812F16H2007/0853F16H2007/0859
    • The check valve unit of a hydraulic tensioner comprises a check ball, a ball guide and a disc-shaped retainer. The retainer is fixed to the high pressure oil chamber side of the ball guide by crimping an annular portion of the ball guide over the outer edge of the retainer so that substantially all of an annular circumferential portion of the high pressure chamber side of the retainer is held underneath the crimped portion of the ball guide. The crimped portion of the ball guide forms a recess for receiving and positioning a plunger-biasing spring. A ball seat is similarly secured to the inflow side of the ball guide by crimping.
    • 液压张紧器的止回阀单元包括止回球,滚珠导向件和盘形保持器。 通过将保持器的外缘上的滚珠导向件的环形部分压接在保持器的外边缘上,保持器固定在球导向件的高压油室侧,使得保持器的高压腔侧的基本上所有的环形周向部分 保持在球导向件的压接部分的下方。 滚珠引导件的卷曲部分形成用于接收和定位柱塞偏置弹簧的凹部。 球座也通过卷曲类似地固定到球导向件的流入侧。