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1. 发明申请

US20100298077A1 RATCHET-TYPE TENSIONER 审中-公开
标题翻译：手摇式张紧器
公开(公告)号：US20100298077A1
公开(公告)日：2010-11-25
申请号：US12762433
申请日：2010-04-19
申请人： Manabu Hirayama , Takahiro Matsushita , Katsuya Nakakubo , Yuji Kurematsu , Osamu Yoshida , Shintarou Yoshimoto
发明人： Manabu Hirayama , Takahiro Matsushita , Katsuya Nakakubo , Yuji Kurematsu , Osamu Yoshida , Shintarou Yoshimoto
IPC分类号： F16H7/08
CPC分类号： F01L1/02 , F01L1/022 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859 , F16H2007/0893
摘要： In a ratchet-type tensioner, a rocking ratchet pawl is released from a rack of teeth on a tensioner plunger following engine start-up by a hydraulically operated pin slidable in a pin hole and caused to protrude therefrom by oil under pressure received directly from an external oil supply, or alternatively from the tensioner's high pressure oil chamber through a passage in the tensioner housing. Optionally, an orifice can be provided within the pin hole to control flow of oil when the supply is excessive and to avoid leakage when the supply is insufficient.
摘要翻译：在棘轮式张紧器中，摇动棘爪在发动机起动之后从张紧器柱塞上的齿条上释放，液压操作销可在销孔中滑动并且在直接从或者通过张紧器壳体中的通道从张紧器的高压油室中提供。可选地，可以在销孔内设置孔口，以在供应过量时控制油的流动，并且在供应不足时避免泄漏。

2. 发明申请

US20100298078A1 RATCHET-TYPE TENSIONER 审中-公开
标题翻译：手摇式张紧器
公开(公告)号：US20100298078A1
公开(公告)日：2010-11-25
申请号：US12770871
申请日：2010-04-30
申请人： Manabu Hirayama , Takahiro Matsushita , Katsuya Nakakubo , Yuji Kurematsu , Osamu Yoshida , Shintarou Yoshimoto
发明人： Manabu Hirayama , Takahiro Matsushita , Katsuya Nakakubo , Yuji Kurematsu , Osamu Yoshida , Shintarou Yoshimoto
IPC分类号： F16H7/08
CPC分类号： F01L1/02 , F01L1/022 , F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： In a ratchet tensioner, a linearly moving ratchet for engagement with rack teeth on a plunger is operated a piston that is spring-biased in a direction to engage the ratchet teeth with the rack, and movable by oil pressure in a direction to disengage the ratchet teeth from the rack. The piston is located within a hole in the housing and, with that hole, forms a second high pressure oil chamber that can receive oil through an oil supply path independent of the oil supply path that carries oil to a first high pressure oil chamber formed by the plunger and the tensioner housing.
摘要翻译：在棘轮张紧器中，用于与柱塞上的齿条啮合的直线运动的棘轮被操作，该活塞在与齿条接合棘轮齿的方向上被弹簧偏置，并且通过油压沿使棘轮脱离的方向可移动牙齿从机架上。活塞位于壳体的孔内，并且与该孔形成第二高压油室，该第二高压油室能够通过独立于供油路径的供油路径接收油，将油运送到第一高压油室，该第一高压油室由柱塞和张紧器壳体。

3. 发明申请

US20110183796A1 RATCHET-TYPE TENSIONER 审中-公开
标题翻译：手摇式张紧器
公开(公告)号：US20110183796A1
公开(公告)日：2011-07-28
申请号：US13011321
申请日：2011-01-21
申请人： Yuji Kurematsu , Manabu Hirayama
发明人： Yuji Kurematsu , Manabu Hirayama
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： In a ratchet-type tensioner having a toothed ratchet piston biased toward a rack of teeth formed on a protruding plunger in a direction transverse to the direction of plunger movement, the rack teeth and the ratchet teeth are mutually engageable and inclined at angles such that the biasing force urging the teeth of the ratchet piston into engagement with the rack teeth is sufficient to block retraction of the plunger during engine start-up but can be overcome when chain tension becomes excessive during engine operation following engine start-up.
摘要翻译：在棘轮式张紧器中，齿形棘轮活塞朝向横向于柱塞运动方向的突出柱塞形成的齿形齿轮偏置，齿条齿和棘轮齿可相互接合并以这样的角度倾斜，推动棘轮活塞的齿与齿条齿接合的偏压力足以阻止发动机起动时柱塞的缩回，但是当发动机起动后的发动机运转时链条张力过大时可以克服。

4. 发明授权

US08454462B2 Chain guide mechanism 有权
标题翻译：导链机构
公开(公告)号：US08454462B2
公开(公告)日：2013-06-04
申请号：US12915226
申请日：2010-10-29
申请人： Masahiko Konno , Kaori Mori , Yuji Kurematsu , Akira Kobara , Manabu Hirayama
发明人： Masahiko Konno , Kaori Mori , Yuji Kurematsu , Akira Kobara , Manabu Hirayama
IPC分类号： F16H7/18 , F16H7/08
CPC分类号： F16H7/08 , F16H2007/0874 , F16H2007/0893
摘要： In a chain guide mechanism, fixed and movable guides are attached to a guide bridge by cooperation of bosses on the guides with boss-receiving holes formed in spaced-apart elements of arms of the bridge. A fixed guide is held against rotation by cooperation of a projection on its mounting boss with a notch in a boss-receiving hole in a guide bridge arm element. A base, extending from an intermediate location at which the arms come together has a pressing structure that engages bosses on a driving sprocket, and a groove for receiving teeth of the driving sprocket.
摘要翻译：在链条引导机构中，固定和可移动的导向件通过凸台在引导件上的配合被附接到导向桥上，凸台接收孔形成在桥的间隔开的元件中。通过其安装凸台上的突起与导向桥臂元件中的凸台接收孔中的凹口的配合来固定固定引导件。从臂的中间位置延伸的基部具有接合驱动链轮上的凸起的按压结构和用于接收主动链轮的齿的凹槽。

5. 发明申请

US20110105258A1 CHAIN GUIDE MECHANISM 有权
标题翻译：链指导机制
公开(公告)号：US20110105258A1
公开(公告)日：2011-05-05
申请号：US12915226
申请日：2010-10-29
申请人： Masahiko Konno , Kaori Mori , Yuji Kurematsu , Akira Kobara , Manabu Hirayama
发明人： Masahiko Konno , Kaori Mori , Yuji Kurematsu , Akira Kobara , Manabu Hirayama
IPC分类号： F16H7/18 , F16H7/08
CPC分类号： F16H7/08 , F16H2007/0874 , F16H2007/0893
摘要： In a chain guide mechanism, fixed and movable guides are attached to a guide bridge by cooperation of bosses on the guides with boss-receiving holes formed in spaced-apart elements of arms of the bridge. A fixed guide is held against rotation by cooperation of a projection on its mounting boss with a notch in a boss-receiving hole in a guide bridge arm element. A base, extending from an intermediate location at which the arms come together has a pressing structure that engages bosses on a driving sprocket, and a groove for receiving teeth of the driving sprocket.
摘要翻译：在链条引导机构中，固定和可移动的导向件通过凸台在引导件上的配合被附接到导向桥上，凸台接收孔形成在桥的间隔开的元件中。通过其安装凸台上的突起与导向桥臂元件中的凸台接收孔中的凹口的配合来固定固定引导件。从臂的中间位置延伸的基部具有接合驱动链轮上的凸起的按压结构和用于接收主动链轮的齿的凹槽。

6. 发明授权

US09062741B2 Ratchet-type tensioner 有权
公开(公告)号：US09062741B2
公开(公告)日：2015-06-23
申请号：US13409592
申请日：2012-03-01
申请人： Yuji Kurematsu , Kaori Mori , Munehiro Maeda , Osamu Yoshida
发明人： Yuji Kurematsu , Kaori Mori , Munehiro Maeda , Osamu Yoshida
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A ratchet-type tensioner, comprising: a housing; a plunger supported by the housing for movement in opposite advancing and setback directions, the plunger having rack teeth provided thereon, and being arranged to advance with respect to the housing along the advancing direction for applying tension to a traveling transmission medium engaged with rotating members; and a ratchet mechanism capable of restricting the plunger from setting back due to a reaction force acting in a setback direction from the transmission medium; said ratchet mechanism comprising: a ratchet-receiving hole provided within the housing; a ratchet element slidable in the ratchet-receiving hole and movable in a sliding direction transverse to the advancing and setback directions; ratchet teeth on the ratchet element engageable with the rack teeth of the plunger; and a ratchet-biasing means for biasing the ratchet element in an engaging direction along the sliding direction so that the ratchet teeth engage with the rack teeth; said ratchet mechanism being capable of restricting the plunger from being set back by a reaction force acting in a setback direction from the transmission medium; said rack teeth having a concave-convex form and being composed of stop surfaces facing in the setback direction and sliding surfaces facing in the advance direction, said sliding surfaces being inclined relative to the sliding direction and facing in a disengaging direction opposite from the engaging direction; each of said sliding surfaces having an entry starting location which the ratchet teeth first engage when starting to enter the rack teeth, and an entry ending location where the engagement of the ratchet teeth with the rack teeth ends; each said sliding surface being a curved surface, all of said curved surface, between said entry starting location and said entry ending location of said sliding surface, bulging in the advancing direction of the plunger and in the disengaging direction of the ratchet element from an imaginary reference plane intersecting said entry starting location and said entry ending location of said sliding surface and perpendicular to another imaginary plane to which the advancing and setback direction of the plunger and the sliding direction of the ratchet element are parallel; and at least a part of said curve midway along said curve between the entry starting location and the entry ending location is convex.

7. 发明申请

US20120309570A1 RING-TYPE TENSIONER 有权
标题翻译：环型张紧器
公开(公告)号：US20120309570A1
公开(公告)日：2012-12-06
申请号：US13477345
申请日：2012-05-22
申请人： Yuji Kurematsu , Osamu Yoshida , Munehiro Maeda , Akira Ishii
发明人： Yuji Kurematsu , Osamu Yoshida , Munehiro Maeda , Akira Ishii
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0855 , F16H2007/0859 , F16H2007/0893
摘要： In a ring-type tensioner, an expansible elastic ring disposed in a groove formed in the wall of a plunger-accommodating hole cooperates with teeth formed on the plunger to restrict axial movement of the plunger. The ring and the groove in the wall of the plunger-accommodating hole have flat radial surfaces for mutual engagement. However the ring also has oblique plunger-tooth engaging surfaces. The ring has manipulable end parts that can be locked in fixed relation to each other by a tool to secure the plunger against axial movement. The tool can also be inserted into a gap between the manipulable end parts to expand the ring and thereby release the plunger.
摘要翻译：在环形张紧器中，设置在形成在柱塞容纳孔的壁中的槽中的可膨胀弹性环与形成在柱塞上的齿配合以限制柱塞的轴向运动。柱塞容纳孔的壁中的环和槽具有相互接合的平坦的径向表面。然而，该环也具有倾斜的柱塞 - 齿啮合表面。环具有可操纵的端部，其可以通过工具彼此固定地相互锁定，以将柱塞固定在轴向运动上。工具也可以插入到可操纵的端部之间的间隙中以使环膨胀，从而释放柱塞。

8. 发明申请

US20120244975A1 RATCHET-TYPE TENSIONER 有权
标题翻译：手摇式张紧器
公开(公告)号：US20120244975A1
公开(公告)日：2012-09-27
申请号：US13409592
申请日：2012-03-01
申请人： Yuji Kurematsu , Kaori Mori , Munehiro Maeda , Osamu Yoshida
发明人： Yuji Kurematsu , Kaori Mori , Munehiro Maeda , Osamu Yoshida
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H7/08 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A ratchet mechanism of the ratchet tensioner comprises a toothed ratchet element slidable in a housing and movable in a sliding direction, a plunger movable in an advance/setback direction and having rack teeth engageable by the teeth of the ratchet element, and a ratchet-biasing spring for biasing the ratchet element so that its teeth engage the rack teeth. The rack teeth have stop surfaces facing in the setback direction and sliding surfaces facing the advancing direction. The sliding surfaces are curved surfaces bulging in the advancing direction and in the direction of disengagement of the ratchet element from the rack teeth, the bulge being in an area extending from an entry starting location to an entry ending location.
摘要翻译：棘轮张紧器的棘轮机构包括可在壳体中滑动并可在滑动方向上移动的齿形棘轮元件，柱塞可在提前/倒退方向上移动并且具有可由棘轮元件的齿啮合的齿条齿轮和棘轮偏置弹簧用于偏压棘轮元件，使其齿接合齿条齿。齿条齿具有面向倒退方向的止动表面和面向前进方向的滑动表面。滑动表面是在前进方向和棘齿元件与齿条齿分离的方向上凸出的弯曲表面，凸起位于从进入开始位置延伸到入口终点位置的区域中。

9. 发明申请

US20120225743A1 Rachet-Type Tensioner 有权
标题翻译： Rachet型张紧器
公开(公告)号：US20120225743A1
公开(公告)日：2012-09-06
申请号：US13401160
申请日：2012-02-21
申请人： Akira Ishii , Munehiro Maeda , Osamu Yoshida , Yuji Kurematsu
发明人： Akira Ishii , Munehiro Maeda , Osamu Yoshida , Yuji Kurematsu
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0812 , F16H2007/0853 , F16H2007/0859
摘要： A ratchet-type tensioner capable of restricting setback of a plunger includes a ratchet mechanism that allows setback of the plunger by sliding a ratchet element in a disengaging direction to disengage ratchet teeth from rack teeth when a reaction force acts on the plunger as a result of excessive chain tension. The ratchet element is slidable in a ratchet-receiving hole, and an inclination suppressing structure that prevents the ratchet element from becoming skewed in the ratchet receiving hole to an extent such that its forward end contacts one side of the hole while its rearward end contacts the opposite sides of the hole.
摘要翻译：能够限制柱塞的棘爪的棘轮式张紧器包括棘轮机构，其通过在棘爪元件沿分离方向滑动以使得棘爪齿与齿条齿脱离，从而当反作用力作用在柱塞上时由于作用链条张力过大棘轮元件可在棘轮接收孔中滑动，并且该倾斜抑制结构防止棘轮元件在棘轮接收孔中歪斜到一定程度，使得其前端接触孔的一侧，同时其后端接触孔的对面。

10. 发明申请

US20110287880A1 CHAIN TENSIONER 有权
标题翻译：链条张紧器
公开(公告)号：US20110287880A1
公开(公告)日：2011-11-24
申请号：US13097468
申请日：2011-04-29
申请人： Atsushi Hayami , Osamu Yoshida , Yuji Kurematsu
发明人： Atsushi Hayami , Osamu Yoshida , Yuji Kurematsu
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0853 , F16H2007/0855 , F16H2007/0859
摘要： In a tensioner having a ratchet mechanism composed of annular teeth on a plunger and an expansible resilient ring disposed in a groove formed in the inner peripheral surface of a plunger-accommodating hole in a tensioner housing, the rear surfaces of the annular teeth have a steep slope, and the front surfaces of the annular teeth have a gradual slope with a convex curvature such that the rate of change of the slope decreases proceeding in the direction of retraction of the plunger.
摘要翻译：在具有由柱塞上的环形齿构成的棘轮机构的张紧器和设置在形成在张紧器壳体中的柱塞容纳孔的内周面的槽中的可膨胀弹性环的情况下，环形齿的后表面具有陡峭斜面，并且环形齿的前表面具有具有凸曲率的渐变斜率，使得斜面的变化率在柱塞的缩回方向上减小。

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