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公开(公告)号：US20220056963A1
公开(公告)日：2022-02-24
申请号：US17516910
申请日：2021-11-02
发明人： Eiichi Nakagawa , Kohei Kunimatsu , Fumiya Murase
摘要： An object of the present invention is to provide a cam clutch capable of switching from one operating mode to another with a simple structure and with high responsiveness, and of securing an expected torque capacity. The cam clutch of the present invention includes an operating mode switch mechanism (140) for switching between a free state that allows relative rotation between an inner race (110) and an outer race (120) and a locked state that prohibits relative rotation between the inner race (110) and the outer race (120). The operating mode switch mechanism (140) includes a cam attitude change part (142) that is movable circumferentially, radially, or axially independently of the rotation of the inner race (110) and the outer race (120) to forcibly tilts a plurality of cams (131) circumferentially arranged between the inner race (110) and the outer race (120).
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公开(公告)号：US10107367B2
公开(公告)日：2018-10-23
申请号：US15089910
申请日：2016-04-04
发明人： Kohei Kunimatsu , Yuji Kurematsu
摘要： To provide a chain tensioner and a relief valve unit that enable a reduction in the number of parts to be machined and the number of assembling steps, reduce the amount of oil flowing out to the outside, and prevent damage on a check valve, without having to increase the size of the chain tensioner. The chain tensioner includes a check valve unit that suppresses reverse flow of oil flowing into an oil pressure chamber, and a relief valve unit that releases the oil when the pressure inside the oil pressure chamber reaches or exceeds a predetermined high pressure. The check valve unit is disposed as a valve element of the relief valve unit, and the relief valve unit and the check valve unit are formed integral with each other.
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公开(公告)号：US20220056965A1
公开(公告)日：2022-02-24
申请号：US17520434
申请日：2021-11-05
发明人： Kohei Kunimatsu , Eiichi Nakagawa
摘要： An object of the present invention is to provide a cam clutch capable of switching from one operating mode to another and offering improved stability of clutch operations and high responsiveness. The object is achieved by an operating mode switching means (180) having a cam attitude change part (185) being drivable independently of rotation of the inner race (110) and outer race (120). A load support point (Sp) is located radially between a load application point (Ap) of the cam attitude change part (185) on the cam (140) and a distal contact point (Ep) of the cam (140) on a raceway positioned on a radially distal side relative to the load application point (Ap). The radial distance (d1) between the load application point (Ap) and the load support point (Sp) is larger than the radial distance (d2) between the load support point (Sp) and the distal contact point (Ep).
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公开(公告)号：US10323730B2
公开(公告)日：2019-06-18
申请号：US15224790
申请日：2016-08-01
发明人： Kohei Kunimatsu , Masanori Watanabe
IPC分类号： F16H7/08
摘要： Provided is a simple-structured tensioner that can reduce the processing and assembling workload. A tensioner 10 includes a plunger 20, a housing 30, a main spring 60, and a relief valve 40. The relief valve 40 includes a seat member 41, a valve member 42, and a relief spring 43. The plunger 20 includes an outward relief passage 23, and a bottom protrusion 22a protruding rearward integrally with and continuously from a plunger bottom 22. The relief spring 43 is disposed such that one end thereof is in contact with the valve member 42 while the other end is attached to the bottom protrusion 22a.
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公开(公告)号：US20170037939A1
公开(公告)日：2017-02-09
申请号：US15224790
申请日：2016-08-01
发明人： Kohei Kunimatsu , Masanori Watanabe
IPC分类号： F16H7/08
CPC分类号： F16H7/0836 , F16H2007/0814
摘要： Provided is a simple-structured tensioner that can reduce the processing and assembling workload. A tensioner 10 includes a plunger 20, a housing 30, a main spring 60, and a relief valve 40. The relief valve 40 includes a seat member 41, a valve member 42, and a relief spring 43. The plunger 20 includes an outward relief passage 23, and a bottom protrusion 22a protruding rearward integrally with and continuously from a plunger bottom 22. The relief spring 43 is disposed such that one end thereof is in contact with the valve member 42 while the other end is attached to the bottom protrusion 22a.
摘要翻译： 提供了一种简单结构的张紧器，可以减少加工和组装工作量。 张紧器10包括柱塞20，壳体30，主弹簧60和安全阀40.溢流阀40包括座构件41，阀构件42和释放弹簧43.柱塞20包括向外 释放通道23和从柱塞底部22一体地连续地向后突出的底部突起22a。释放弹簧43设置成使得其一端与阀构件42接触，而另一端附接到底部突起 22a。
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公开(公告)号：US10077824B2
公开(公告)日：2018-09-18
申请号：US15167008
申请日：2016-05-27
发明人： Yuichiro Ishikawa , Kohei Kunimatsu
CPC分类号： F16H7/08 , F16H7/0836 , F16H2007/0814 , F16H2007/0859 , F16H2007/0878 , F16H2007/0893
摘要： To provide a simple-structured tensioner that can maintain good sliding properties of and hydraulic pressure for the plunger. The tensioner 10 includes a sleeve 30 inserted into a cylindrical body hole 21, a plunger 40 inserted in the sleeve 30 such as to be able to advance and retract along an axial direction of the sleeve 30, and biasing unit 60 for biasing the plunger 40 toward a front side. The sleeve 30 has, at a front end of a sleeve body 31 thereof, a flange part 33 extending radially outward.
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公开(公告)号：US20170108093A1
公开(公告)日：2017-04-20
申请号：US15288049
申请日：2016-10-07
IPC分类号： F16H7/08
CPC分类号： F16H7/0848 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0859
摘要： To provide a simple-structured tensioner capable of minimizing an increase in production cost, and avoiding performance degradation of its check valve resulting from a buildup of oil pressure inside an oil pressure chamber, while securing good assemblability of the check valve. A check valve 50 is provided in the tensioner 10 in which a ball seat 52 is fixedly set to a housing 30 or a plunger 20 and has a retainer receiving recess 52b for setting a retainer 53 on one side facing an oil pressure chamber 11.
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公开(公告)号：US20160290447A1
公开(公告)日：2016-10-06
申请号：US15089910
申请日：2016-04-04
发明人： Kohei Kunimatsu , Yuji Kurematsu
CPC分类号： F16H7/0848 , F16H7/0836 , F16H2007/0806 , F16H2007/0812 , F16H2007/0814 , F16H2007/0853 , F16H2007/0859 , F16H2007/0893 , F16K15/04 , F16K17/02
摘要： To provide a chain tensioner and a relief valve unit that enable a reduction in the number of parts to be machined and the number of assembling steps, reduce the amount of oil flowing out to the outside, and prevent damage on a check valve, without having to increase the size of the chain tensioner. The chain tensioner includes a check valve unit that suppresses reverse flow of oil flowing into an oil pressure chamber, and a relief valve unit that releases the oil when the pressure inside the oil pressure chamber reaches or exceeds a predetermined high pressure. The check valve unit is disposed as a valve element of the relief valve unit, and the relief valve unit and the check valve unit are formed integral with each other.
摘要翻译： 为了提供能够减少待加工零件数量和组装步骤数量的链条张紧器和安全阀单元，减少流出到外部的油量，并且防止止回阀损坏，而没有 增加链张紧器的尺寸。 链条张紧器包括抑制流入油压室的油的反向流动的止回阀单元和当油压室内的压力达到或超过预定高压时释放油的安全阀单元。 止回阀单元被设置为安全阀单元的阀元件，并且安全阀单元和止回阀单元彼此一体地形成。
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公开(公告)号：US20220074469A1
公开(公告)日：2022-03-10
申请号：US17526140
申请日：2021-11-15
IPC分类号： F16H9/24
摘要： Two reduction gears have at least two common rotation center axes. A first power source (121) is coupled to the high-speed side of a first reduction gear (111) on a first rotation center axis (101). A second power source (122) is coupled to the high-speed side of a second reduction gear (112) on a second rotation center axis (102). A first input/output shaft (141) is coupled to the low-speed side of the second reduction gear (112) on the first rotation center axis (101). The high-speed side of the first reduction gear (111) is coupled to the low-speed side of the second reduction gear (112) on the first rotation center axis (101) via a first clutch (131). The low-speed side of the first reduction gear (111) is coupled to the high-speed side of the second reduction gear (112) on the second rotation center axis (102) via a second clutch (132).
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公开(公告)号：US10072741B2
公开(公告)日：2018-09-11
申请号：US15221966
申请日：2016-07-28
发明人： Kohei Kunimatsu , Masanori Watanabe
CPC分类号： F16H7/0848 , F16H7/0838 , F16H2007/0812 , F16H2007/0859
摘要： Provided is a simple-structured tensioner that can reduce processing and assembling workload as well as increase the degree of design freedom. A tensioner 10 includes an oil supply hole 33 formed in a sleeve bottom 32 and a check valve 50 disposed on a front face of the sleeve bottom 32. The check valve 50 includes a check ball 51 and a retainer 52. The sleeve bottom 32 includes a ball seat 34 which protrudes in a cylindrical shape toward the front side integrally with and continuously from the edge of the oil supply hole 33 and on which the check ball 51 is seated.
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