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    • 51. 发明专利
      JP2009180359A Tensioner for endless transmission belt 有权
    • Tensioner for endless transmission belt
    • 用于无端变速带的张紧器
    • JP2009180359A
    • 2009-08-13
    • JP2008022050
    • 2008-01-31
    • Honda Motor Co Ltd , 本田技研工業株式会社
    • EMIZU OSAMU , YAMAURA HIROSHI , NIIMURA RYUTA , FUKUYOSHI YASUHIRO , KUTO TAKAO
    • F16H7/08 , F16K17/04
    • F16H7/0848 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0859
    • PROBLEM TO BE SOLVED: To provide a tensioner for an endless transmission belt in which a plunger, a check valve, and a relief valve are arranged in a series so as to be reduced in size.
      SOLUTION: The check valve 94 and the relief valve 95 are arranged within the width of the plunger 60. When the pressure in the pressure oil exceeds a certain amount, a holding valve body 75 moves against a holding spring 76 to be in a valve open state, and the pressure oil flow as indicated by an arrow (1). A spherical second valve body 38 is pressed by pressure oil to be removed from a second valve seat section 47. As a result, the pressure oil flows as indicated by arrows (2), (3) reaching a high oil pressure chamber 88, and is stored there. Since the relief valve 95 is arranged within the width of the plunger 60, the tensioner can be miniaturized in a direction perpendicular to the longitudinal direction of the relief valve 95.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题：为了提供一种串联布置以减小尺寸的环形传动带的张紧器，其中柱塞，止回阀和安全阀布置成一系列。 解决方案：止回阀94和安全阀95布置在柱塞60的宽度内。当压力油中的压力超过一定量时，保持阀体75抵靠保持弹簧76移动成为 阀打开状态，以及如箭头（1）所示的压力油流动。 球形第二阀体38被压力油按压，以从第二阀座部分47移除。结果，压力油如箭头（2），（3）所示流动到达高油压室88，并且 存储在那里 由于安全阀95布置在柱塞60的宽度内，张紧器可以在垂直于安全阀95的纵向的方向上小型化。（C）版权所有（C）2009，JPO＆INPIT
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 52. 发明专利
      JP2009115226A Chain tensioner 有权
    • Chain tensioner
    • 链条张紧器
    • JP2009115226A
    • 2009-05-28
    • JP2007289382
    • 2007-11-07
    • Ntn Corp , Ntn株式会社
    • SATO SEIJI , FURUKAWA TASUKU
    • F16H7/08
    • F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859
    • PROBLEM TO BE SOLVED: To provide a chain tensioner which has a plunger easy to process, and is produced at low cost.
      SOLUTION: In the chain tensioner 1, the plunger 3 is slidably inserted in a cylinder 2. The cylinder 2 has an oil supply path 5 for introducing hydraulic oil into a pressure chamber 4 surrounded by the cylinder 2 and the plunger 3. A check valve 6 is provided at an end of the oil supply path 5 which is on the pressure chamber 4 side. A register ring 14 is received in a receiving groove 15 formed in the inner periphery at an open end of the cylinder 2. A plurality of engagement grooves 6 with which the register ring 14 engages are arranged at axial intervals in the outer periphery of the plunger 3. A return spring 13 for urging the plunger 3 in the direction in which the plunger 3 projects from the cylinder 2 is provided in the cylinder 2. A projection end of the plunger 3, which projection end projects from the cylinder 2, presses a chain. The plunger 3 is made up of a tube body 3a and a cap member 3b. The tube body 3a has in its outer periphery the engagement groove 16, and both ends opened. The cap member 3b is fitted in one end of the tube body 3a.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题：提供一种具有容易加工并且以低成本生产的柱塞的链条张紧器。 解决方案：在链条张紧器1中，柱塞3可滑动地插入到气缸2中。气缸2具有用于将液压油引入由气缸2和柱塞3包围的压力室4中的供油路径5。 止回阀6设置在供油路5的位于压力室4侧的一端。 寄存器环14被容纳在形成在缸体2的开口端的内周的接收槽15中。对准环14所接合的多个接合槽6以柱塞间隔布置在柱塞的外周中 在气缸2中设置有用于沿柱塞3从气缸2突出的方向推动柱塞3的复位弹簧13.突出端从气缸2突出的柱塞3的突出端压入 链。 柱塞3由管体3a和盖构件3b构成。 管体3a的外周具有接合槽16，两端开口。 盖构件3b装配在管体3a的一端中。 版权所有（C）2009，JPO＆INPIT
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 54. 发明专利
      JP2008051212A Chain tensioner 有权
    • Chain tensioner
    • 链条张紧器
    • JP2008051212A
    • 2008-03-06
    • JP2006227970
    • 2006-08-24
    • Ntn Corp , Ntn株式会社
    • SATO SEIJI , KITANO SATOSHI , HAYAKAWA HISASHI , RYONO YOSHIAKI , ONIMARU KOICHI
    • F16H7/18 , F15B15/14 , F16H7/06 , F16H7/08
    • F16H2007/0814
    • PROBLEM TO BE SOLVED: To provide a compact chain tensioner having a relief valve returning an oil inside a pressure chamber to an engine room.
      SOLUTION: The chain tensioner has a flange portion 13 formed in a periphery of housing 11. A pressure chamber 15 is formed by inserting a plunger 14 for pushing the chain. The oil is accumulated inside the pressure chamber 15. A return spring 16 biasing the plunger 14 toward a direction of increasing the volume of the pressure chamber 15 is arranged. An oil supply passage 17 communicating the pressure chamber 15 to exterior is formed in the housing 11. A check valve 19 is arranged in the oil supply passage 17. A screw rod 27 having a male screw 28 formed in the outer periphery to be engaged with a female screw 26 formed in an inner periphery of pressure chamber side of the plunger 14 is incorporated inside the pressure chamber 15. The tensioner provided with a spring 41 biasing the screw rod 27 in a direction of separating the screw rod 27 from the plunger 14 is arranged. A relief passage 32 communicating the pressure chamber 15 to exterior is formed. The relief passage 32 has a relief valve 33 to be opened when a pressure inside the pressure chamber 15 exceeds a predetermined pressure.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题：提供一种具有将压力室内的油返回到发动机室的安全阀的紧凑型链条张紧器。 解决方案：链条张紧器具有形成在壳体11周边的凸缘部分13.通过插入用于推动链条的柱塞14形成压力室15。 油被积聚在压力室15内。布置了使柱塞14朝向增加压力室15的体积的方向偏压的复位弹簧16。 在壳体11内形成有将压力室15连通的供油路17，在供油路17上配置止回阀19.螺杆27具有形成于外周的外螺纹28， 形成在柱塞14的压力室侧的内周中的阴螺纹26被并入压力室15内。张紧器设置有弹簧41，弹簧41沿着将螺杆27与柱塞14分离的方向偏压螺杆27 被安排。 形成将压力室15连通到外部的释放通路32。 泄压通道32具有当压力室15内的压力超过预定压力时打开的安全阀33。 版权所有（C）2008，JPO＆INPIT
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 57. 发明专利
      JP2007309350A Chain tensioner 审中-公开
    • Chain tensioner
    • 链条张紧器
    • JP2007309350A
    • 2007-11-29
    • JP2006136475
    • 2006-05-16
    • Ntn Corp , Ntn株式会社
    • KITANO SATOSHI , SATO SEIJI
    • F16H7/08
    • F16H2007/0814
    • PROBLEM TO BE SOLVED: To provide a chain tensioner with a relief valve, having a less number of components for developing a hydraulic damper effect right after starting an engine.
      SOLUTION: A return spring 14 is incorporated in a cylinder chamber 12 of a housing 11 for imparting outward protrusion to a plunger 13. The housing 11 has an oil supply passage 16 communicated with a pressure chamber 15 on the back of the plunger 13. The plunger 13 has a spring storage recessed portion 18 for the return spring 14, a valve storage recessed portion 19, and an oil drain passage 20. The relief valve 21 is incorporated in the valve storage recessed portion 19. A spring seat 40 is incorporated in the spring storage recessed portion 18 to reduce the capacity of the pressure chamber 15. Thus, the pressure chamber 15 is filled with oil fed from an oil pump to the oil supply passage 16 immediately when starting the engine, and so the hydraulic damper effect develops immediately after starting the engine.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题：提供具有安全阀的链条张紧器，在起动发动机之后，具有较少数量的用于显影液压阻尼器效应的部件。 解决方案：复位弹簧14结合在壳体11的气缸室12中，用于向柱塞13施加向外的突出。壳体11具有与柱塞后部的压力室15连通的供油通道16 活塞13具有用于复位弹簧14的弹簧储存凹部18，阀存储凹部19和排油通道20.安全阀21结合在阀存储凹部19中。弹簧座40 被并入弹簧储存凹部18中以降低压力室15的容量。因此，在起动发动机时，立即将压力室15填充有从油泵供给到供油通道16的油，因此液压 起动发动机后立即发生阻尼效应。 版权所有（C）2008，JPO＆INPIT
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
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