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公开(公告)号：US07442138B2
公开(公告)日：2008-10-28
申请号：US11584443
申请日：2006-10-20
申请人： Yoshio Kurokawa , Shigenobu Sugasawa , Yutaka Minami , Kaori Mori , Timothy Marx
发明人： Yoshio Kurokawa , Shigenobu Sugasawa , Yutaka Minami , Kaori Mori , Timothy Marx
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0853
摘要： In a ratchet type chain tensioner, having a toothed rack on its plunger and a pawl cooperable with the rack, a recess is provided between the front end of the rack and the protruding end of the plunger. In the initial stages of operation of the tensioner, the pawl can enter the recess while permitting the plunger to protrude and retract freely within a limited range. Thereafter, when the chain controlled by the tensioner becomes elongated, the pawl cooperates with the rack to limit retraction of the plunger.
摘要翻译： 在棘轮式链条张紧器中，在其柱塞上具有齿形齿条和与该齿条配合的棘爪，在齿条的前端和柱塞的突出端之间设置有凹部。 在张紧器的操作的初始阶段，棘爪可以进入凹部，同时允许柱塞在有限的范围内自由地伸出和缩回。 此后，当由张紧器控制的链条变长时，棘爪与齿条配合以限制柱塞的缩回。
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公开(公告)号：US20070142144A1
公开(公告)日：2007-06-21
申请号：US11584443
申请日：2006-10-20
申请人： Yoshio Kurokawa , Shigenobu Sugasawa , Yutaka Minami , Kaori Mori , Timothy Marx
发明人： Yoshio Kurokawa , Shigenobu Sugasawa , Yutaka Minami , Kaori Mori , Timothy Marx
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0853
摘要： In a ratchet type chain tensioner, having a toothed rack on its plunger and a pawl cooperable with the rack, a recess is provided between the front end of the rack and the protruding end of the plunger. In the initial stages of operation of the tensioner, the pawl can enter the recess while permitting the plunger to protrude and retract freely within a limited range. Therafter, when the chain controlled by the tensioner becomes elongated, the pawl cooperates with the rack to limit retraction of the plunger.
摘要翻译： 在棘轮式链条张紧器中，在其柱塞上具有齿形齿条和与该齿条配合的棘爪，在齿条的前端和柱塞的突出端之间设置有凹部。 在张紧器的操作的初始阶段，棘爪可以进入凹部，同时允许柱塞在有限的范围内自由地伸出和缩回。 当拉伸器控制的链条变长时，棘爪与齿条配合以限制柱塞的缩回。
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公开(公告)号：US08257212B2
公开(公告)日：2012-09-04
申请号：US12521836
申请日：2007-01-19
CPC分类号： F16H7/0836 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A chain tensioner has a plunger (14) slidably fitted in a bottomed cylinder (12) formed in a housing (11), and configured to resiliently urge the plunger (14) by a return spring (13) in the direction along which the plunger (14) is projected out from the cylinder (12), wherein the chain tensioner is configured to attach an engagement clip (19) to the opening of the cylinder (12), and to provide an engagement portion engageable with the engagement clip (19) to the end of the plunger (14) on the projection side thereof, so as to allow the engagement clip (19) and the engagement portion to engage with and disengage from each other corresponding to the position of rotation of the plunger (14).
摘要翻译： 链条张紧器具有可滑动地装配在形成在壳体（11）中的有底圆筒（12）中的柱塞（14），并且构造成通过复位弹簧（13）沿柱塞 （14）从所述气缸（12）伸出，其中所述链条张紧器构造成将接合夹（19）附接到所述气缸（12）的开口，并且提供可与所述接合夹（19）接合的接合部 ）延伸到其突出侧上的柱塞（14）的端部，从而允许接合夹（19）和接合部分相应于柱塞（14）的旋转位置彼此接合和分离， 。
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公开(公告)号：US07618339B2
公开(公告)日：2009-11-17
申请号：US11214543
申请日：2005-08-30
IPC分类号： F16H7/08
CPC分类号： F01L1/02 , F01L1/053 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859
摘要： In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its exterior. These flat surfaces, in cooperation with the cylindrical inner wall of the plunger, form plural oil passages, each having a segment-shaped cross-section. The oil passages allow flow of oil past the plug to a discharge opening at the front end of the plunger, and the flow of oil is substantially unaffected by circumferential displacement of the oil passages on the periphery of the plug relative to the oil passages on the periphery of the relief valve seat.
摘要翻译： 在其柱塞内具有安全阀的液压张紧器中，通过在其外部锻造多个平坦表面来形成压配合到柱塞中的安全阀弹簧接收塞。 这些平坦表面与柱塞的圆柱形内壁协同地形成多个油通道，每个油通道具有段形横截面。 油通道允许油流过塞子到柱塞前端处的排放口，并且油的流动基本上不受插塞周边上的油通道相对于油路上的油通道的周向位移的影响 安全阀座周边。
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5.发明授权公开(公告)号：US08427777B2
公开(公告)日：2013-04-23
申请号：US12969194
申请日：2010-12-15
申请人： Mitsuo Kodama , Yoshio Kurokawa
发明人： Mitsuo Kodama , Yoshio Kurokawa
CPC分类号： G11B19/2045 , F16C17/107 , F16C33/74 , F16C2370/12 , G11B19/2036 , H02K5/1675 , H02K7/09
摘要： In a disk drive device, a hub has an outer circumferential wall portion configured to hold a recording disk. A base member has a cylindrical portion, whose central axis is the rotation axis of the hub, on a surface on the side of the hub. A fluid dynamic bearing holds a lubricant and rotatably supports the hub relative to the base member. A ring-shaped attraction plate including a magnetic material is fixed to the base member and faces a magnet in the axial direction. The outer circumferential wall portion is configured such that the outer circumferential wall portion surrounds the attraction plate and that the range of the outer circumferential wall portion in the axial direction overlaps with the range of the attraction plate in the axial direction.
摘要翻译： 在盘驱动装置中，轮毂具有配置成保持记录盘的外周壁部。 基座部件具有在轮毂一侧的表面上的中心轴线是轮毂的旋转轴线的圆筒部。 流体动力轴承保持润滑剂并相对于基座构件可旋转地支撑毂。 包括磁性材料的环形吸引板固定在基体上并且在轴向上面向磁体。 外周壁部构成为，外周壁部围绕吸引板，外周壁部的轴向的范围与吸引板的轴向的范围重叠。
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公开(公告)号：US06953406B2
公开(公告)日：2005-10-11
申请号：US10610179
申请日：2003-06-30
申请人： Yoshio Kurokawa , Toyonaga Saitoh
发明人： Yoshio Kurokawa , Toyonaga Saitoh
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0878
摘要： A plunger stop for temporarily holding the plunger of a ratchet type chain tensioner in place during installation of the tensioner, or during mounting or removal of the chain, comprises a bifurcated part inserted into a groove in which a pivoted ratchet pawl is situated. The bifurcated part is sandwiched between the pivoted ratchet pawl and a part of the tensioner housing, with the bifurcated part straddling a ratchet pawl-biasing spring in the groove. A grip, which is integral with the bifurcated part protrudes outside the tensioner housing so that it can be grasped manually for removal.
摘要翻译： 用于在安装张紧器期间或在安装或移除链条期间暂时将棘轮式链条张紧器的柱塞暂时保持在适当位置的柱塞挡块包括插入到其中枢转的棘爪的凹槽中的分叉部分。 分叉部分夹在枢转的棘爪和张紧器壳体的一部分之间，其中分叉部分跨越槽中的棘爪偏压弹簧。 与分叉部分成一体的把手突出在张紧器壳体的外部，从而可以手动抓取以便拆卸。
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公开(公告)号：US06875141B2
公开(公告)日：2005-04-05
申请号：US10388004
申请日：2003-03-13
CPC分类号： F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： In a ratchet-type hydraulic tensioner for use with a timing chain of an internal combustion engine, two or more oil reservoirs gradually receive oil fed under pressure from an external source, and supply the oil through a hydraulic valve mechanism to a high pressure oil chamber formed by a plunger and a housing in which the plunger is slidable. Throttle holes, formed in partition walls separating the reservoirs, control the flow of oil from one reservoir to another. An excess oil discharge hole is optionally provided in one of the reservoirs. The invention prevents abnormal protrusion of the plunger, reduces chain noise and component damage due to wear, and rapidly re-establishes proper tension on engine start-up.
摘要翻译： 在与内燃机的正时链一起使用的棘轮型液压张紧器中，两个以上的储油器逐渐接收来自外部源的加压供油，并通过液压阀机构将油供给到高压油室 由柱塞和壳体形成，其中柱塞可滑动。 在分隔储存器的分隔壁中形成的节流孔控制油从一个储存器到另一个储存器的流动。 在其中一个储存器中可选地设置多余的排油孔。 本发明防止柱塞的异常突出，减少由于磨损引起的链条噪音和部件损坏，并且在发动机起动时快速重新建立适当的张力。
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公开(公告)号：US06810907B2
公开(公告)日：2004-11-02
申请号：US10264193
申请日：2002-10-03
IPC分类号： F16H708
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0859 , Y10T137/218 , Y10T137/7852
摘要： In a hydraulic tensioner having a relief valve mechanism in which a spring-biased valve element is reciprocable in a bore, hitting sounds produced by collision of the relief valve element with a plug in the bore, and wear and breakage of the biasing spring, are prevented by providing an oil relief hole in a peripheral wall of the relief valve bore at a position where it is closed by the relief valve element when he relief valve element is moved by a rapid increase in oil pressure.
摘要翻译： 在具有安全阀机构的液压张紧器中，其中弹簧偏压阀元件可在孔中往复运动，撞击安全阀元件与孔中的塞子产生的声音以及偏置弹簧的磨损和破损 通过在安全阀元件通过油压的快速增加而移动时在安全阀元件关闭的位置处在安全阀孔的周壁中设置一个排油孔来防止。
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公开(公告)号：US08638526B2
公开(公告)日：2014-01-28
申请号：US13335513
申请日：2011-12-22
CPC分类号： G11B33/1493 , F16C35/02 , F16C2370/12 , G11B25/043
摘要： In a rotating device, a housing includes a cylindrical outer surface facing an inner surface of a through hole and a guiding surface arranged on the underside of the outer surface, the diameter of the guiding surface being less than the diameter of the outer surface. Glue has an interface in an end space. In at least a part of the end space where the glue does not exist, conductive resin seamlessly is applied from the guiding surface to the inner surface of the through hole. With regard to a portion of the inner surface of the through hole that radially faces the guiding surface, the length, in the axial direction, of the portion that touches the conductive resin is greater than the length, in the axial direction, of the portion that touches the glue.
摘要翻译： 在旋转装置中，壳体包括面向通孔的内表面的圆柱形外表面和布置在外表面的下侧上的引导表面，引导表面的直径小于外表面的直径。 胶水在最终空间中有一个接口。 在不存在胶的端部空间的至少一部分中，导电树脂从导向面向通孔的内表面无缝地施加。 对于径向面向导向面的通孔的内表面的一部分，与导电性树脂接触的部分的轴向长度大于部分的长度 接触胶水。
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公开(公告)号：US20060089221A1
公开(公告)日：2006-04-27
申请号：US11214543
申请日：2005-08-30
IPC分类号： F16H7/22
CPC分类号： F01L1/02 , F01L1/053 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859
摘要： In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its exterior. These flat surfaces, in cooperation with the cylindrical inner wall of the plunger, form plural oil passages, each having a segment-shaped cross-section. The oil passages allow flow of oil past the plug to a discharge opening at the front end of the plunger, and the flow of oil is substantially unaffected by circumferential displacement of the oil passages on the periphery of the plug relative to the oil passages on the periphery of the relief valve seat.
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