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。

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。

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。

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。

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。

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.

公开(公告)号：US20130053197A1

公开(公告)日：2013-02-28

申请号：US13597383

申请日：2012-08-29

申请人： Masahiko Konno ,  Kaori Mori ,  Yuji Kurematsu

发明人： Masahiko Konno ,  Kaori Mori ,  Yuji Kurematsu

IPC分类号： F16H7/18

CPC分类号： F16H7/18 ,  F16H2007/0872

摘要： In a transmission guide, a synthetic resin shoe and a synthetic resin base are integrally molded by two part molding. Strips projecting from a supporting surface of the base extend in parallel to the longitudinal direction of the base, and concave grooves formed in the shoe, which also extend in parallel to the longitudinal direction of the base and of the shoe, receive the strips of the base and are fused with the base.

摘要翻译： 在传动导向件中，通过两部分成型将合成树脂鞋和合成树脂基底一体地模制。 从基座的支撑面突出的条带平行于基部的纵向方向延伸，并且形成在鞋中的凹槽也平行于基部和鞋的纵向方向延伸， 并与基底融合。

公开(公告)号：US20130035184A1

公开(公告)日：2013-02-07

申请号：US13558994

申请日：2012-07-26

申请人： Masahiko Konno ,  Kaori Mori ,  Yuji Kurematsu

发明人： Masahiko Konno ,  Kaori Mori ,  Yuji Kurematsu

IPC分类号： F16H7/08 ,  F16H7/18

CPC分类号： F16H7/18 ,  F16H2007/0872

摘要： The synthetic resin guide in accordance with the invention comprises an elongated synthetic resin shoe having a front surface for sliding contact with the transmission medium and a back surface opposite from the front surface and a plurality of engaging members disposed in longitudinally spaced relationship to one another. The guide also comprises an elongated synthetic resin base in contact with the back surface of the shoe and supporting the shoe, the base having a plurality of longitudinally spaced engaged portions each of which engages with one of the engaging members. One engaging member is fixed to the engaged portion with which it is engaged. The other engaging members are longitudinally movable relative to the engaged portions with which they are engaged. Thus, the guide allows longitudinal thermal expansion and contraction of the shoe relative to the base.

摘要翻译： 根据本发明的合成树脂引导件包括细长的合成树脂靴，其具有用于与传动介质滑动接触的前表面和与前表面相对的后表面，以及多个彼此纵向间隔开设置的接合构件。 引导件还包括与鞋的后表面接触并支撑鞋的细长的合成树脂基底，该基部具有多个纵向间隔开的接合部分，每个接合部分与接合构件中的一个接合。 一个接合构件固定到与其接合的接合部分。 其他接合构件相对于它们接合的接合部分可纵向移动。 因此，引导件允许鞋相对于底座的纵向热膨胀和收缩。

公开(公告)号：US20090286639A1

公开(公告)日：2009-11-19

申请号：US12408068

申请日：2009-03-20

申请人： Shunji Sakura ,  Akira Hirai ,  Yuji Kurematsu

发明人： Shunji Sakura ,  Akira Hirai ,  Yuji Kurematsu

IPC分类号： F16H55/30

CPC分类号： F16H55/30 ,  F16H55/08 ,  F16H2055/306

摘要： A sprocket for a chain drive using a roller or bushing chain has a plurality of different pitch angles, including both pitch angles larger than the standard pitch angle, and pitch angles smaller than the standard pitch angle. The number of pitch angles in the sprocket larger than the standard pitch angle is greater than the number of pitch angles in the sprocket smaller than the standard pitch angle. The sprocket teeth are integrally molded with the sprocket by sintering.

摘要翻译： 用于使用辊或衬套链的链条驱动的链轮具有多个不同的桨距角，包括两个桨距角大于标准桨距角，以及俯仰角小于标准俯仰角。 大于标准桨距角的链轮中的桨距角的数量大于链轮中的桨距角小于标准桨距角的数量。 链轮通过烧结与链轮整体模制。

公开(公告)号：US20070029696A1

公开(公告)日：2007-02-08

申请号：US11481361

申请日：2006-07-05

申请人： Yuji Kurematsu ,  Toshihiko Komiyama ,  Kenji Mitsuhashi ,  Toshiji Aota

发明人： Yuji Kurematsu ,  Toshihiko Komiyama ,  Kenji Mitsuhashi ,  Toshiji Aota

IPC分类号： B28B3/00 ,  B29C43/48

CPC分类号： F16H7/18 ,  F16H2007/0872

摘要： A guide for a traveling transmission medium such as a timing chain comprises a resin shoe for sliding contact with the transmission medium, supported on a base frame having an two flanges and a web in an I-shaped cross-section. The base frame is produced from aluminum by die casting, using a three-part mold. Two parts of the mold cooperate to form a part of the mold cavity that forms one of the flanges and the web of the base frame, and a third part of the mold cooperates with the first two parts to form a part of the cavity in which the other flange of the base frame is formed without a draft.

摘要翻译： 用于诸如正时链条的行进传动介质的引导件包括用于与传动介质滑动接触的树脂靴，支撑在具有两个凸缘的基座框架和具有I形横截面的腹板。 底座通过压铸由铝制成，使用三部分模具。 模具的两个部分协作以形成模腔的一部分，其形成凸缘和基架的腹板之一，并且模具的第三部分与前两个部分配合以形成空腔的一部分，其中 底架的另一个凸缘形成没有牵伸。