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公开(公告)号：US20210053210A1
公开(公告)日：2021-02-25
申请号：US16999956
申请日：2020-08-21
发明人： Mitsuhiro Tamura , Akira Yamamoto
摘要： A robot includes a first joint and a second joint positioned on a base end side from the first joint. A first speed reducer is incorporated in the first joint. A second speed reducer is incorporated in the second joint. A volume proportion of a resin occupying a constituent member of the first speed reducer is larger than a volume proportion of a resin occupying a constituent member of the second speed reducer.
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公开(公告)号：US20210010566A1
公开(公告)日：2021-01-14
申请号：US17036874
申请日：2020-09-29
发明人： Mitsuhiro Tamura , Akira Yamamoto
IPC分类号： F16H1/32
摘要： An eccentric oscillation type speed reducer includes: an external gear which meshes with the internal gear; an eccentric body shaft which oscillates the external gear; and an input shaft bearing which supports the eccentric body shaft. The casing and the external gear are made of resin, and the input shaft bearing is made of metal.
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公开(公告)号：US09377098B2
公开(公告)日：2016-06-28
申请号：US13951863
申请日：2013-07-26
发明人： Akira Yamamoto
IPC分类号： F16H57/031 , F16H57/032 , F16H57/023 , F16H57/038 , F16H57/02
CPC分类号： F16H57/031 , F16H57/023 , F16H57/032 , F16H57/038 , F16H2057/02073 , F16H2057/02091 , F16H2057/0325 , Y10T29/49464 , Y10T74/19642
摘要： A power transmission device includes a gear speed reduction mechanism which includes an input shaft, an input pinion provided on the input shaft, a rotary shaft other than the input shaft, and a gear incorporated to the rotary shaft, and a casing which accommodates the gear speed reduction mechanism. The casing is made of resin and includes a casing body which includes an incorporating opening for incorporating the gear and a cover which closes the incorporating opening. The casing body includes an input side opening with the opening being a size that the input pinion can be inserted but the gear cannot be inserted. In addition, the rotary shaft is supported by a bearing support which is formed in the casing body, and the bearing support of the rotary shaft is not formed on the cover.
摘要翻译： 动力传递装置包括齿轮减速机构，其包括输入轴，设置在输入轴上的输入小齿轮，除输入轴以外的旋转轴和与旋转轴结合的齿轮，以及容纳齿轮的壳体 减速机构。 壳体由树脂制成，并且包括壳体，其包括用于结合齿轮的合并开口和封闭合并开口的盖。 壳体包括输入侧开口，其开口的尺寸为输入小齿轮可插入但齿轮不能插入的尺寸。 此外，旋转轴由形成在壳体中的轴承支撑件支撑，并且旋转轴的轴承支撑件不形成在盖上。
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公开(公告)号：US11845205B2
公开(公告)日：2023-12-19
申请号：US17322224
申请日：2021-05-17
发明人： Mitsuhiro Tamura , Akira Yamamoto
CPC分类号： B29C45/0055 , B29C45/0005 , F16H49/001 , F16H55/06 , F16H55/0833 , B29C2045/0058 , B29K2105/12 , B29L2015/003
摘要： Provided is a method for producing a gear including an intermediate product forming process of solidifying a fluid material to form a gear intermediate product, and a tooth forming process of cutting the gear intermediate product to form teeth.
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公开(公告)号：US20210396304A1
公开(公告)日：2021-12-23
申请号：US17349502
申请日：2021-06-16
摘要： A gear device includes an external gear, and an internal gear that meshes with the external gear. The external gear is formed of metal. The internal gear is formed of a carbon fiber reinforced resin.
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公开(公告)号：US10693349B2
公开(公告)日：2020-06-23
申请号：US16173790
申请日：2018-10-29
发明人： Mitsuhiro Tamura , Akira Yamamoto
摘要： The life estimation system is a life estimation system that estimates a life of the reduction gear including a reduction mechanism. The life estimation system includes a sensor that is to be mounted onto the reduction gear and detects information for identifying a stress generated in a specific part of the reduction gear, and an estimating unit that identifies the stress generated in the specific part based on detection information obtained by the sensor and estimates the life of the specific part based on the identified stress.
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公开(公告)号：US20190390735A1
公开(公告)日：2019-12-26
申请号：US16433316
申请日：2019-06-06
发明人： Mitsuhiro Tamura , Akira Yamamoto
摘要： A reduction gear includes an external gear, an internal gear which meshes with the external gear, a first member which synchronizes with a rotation of the external gear, a second member which synchronizes with a rotation of the internal gear, and a main bearing which is disposed between the first member and the second member, in which one of the first member and the second member is connected to a driven member and the other is fixed to an external member, and the first member, the second member, and the main bearing are formed of a material having a larger Young's modulus and larger specific gravity than those of a material constituting the external gear and the internal gear.
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公开(公告)号：US20170284201A1
公开(公告)日：2017-10-05
申请号：US15460073
申请日：2017-03-15
发明人： Kota Suzuki , Mikio Komatsu , Takashi Haga , Akira Yamamoto
CPC分类号： F01C20/28 , F01C1/14 , F01C13/00 , F04C2240/81 , F04C2270/12 , F04C2270/80 , G01M13/021 , G01M13/028
摘要： A malfunction diagnosis apparatus for a gear motor includes a vibration sensor portion, and a diagnosis unit that determines whether or not an abnormality occurs in the gear motor based on vibration detected by the vibration sensor portion. The vibration sensor portion and the diagnosis unit are installed in the gear motor. The diagnosis unit has a control power source which supplies power to the vibration sensor portion. The vibration sensor portion outputs detected vibration data to the diagnosis unit in a digital format.
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公开(公告)号：US11878412B2
公开(公告)日：2024-01-23
申请号：US18150160
申请日：2023-01-04
CPC分类号： B25J17/00 , B25J9/0009 , B25J9/102 , B25J9/108
摘要： A robot joint structure includes a first robot member, a second robot member, and a speed reducer incorporated in a joint portion that connects the first robot member and the second robot member to each other. The speed reducer includes an external gear, an internal gear that meshes with the external gear, and a fixing member that is provided so as to be non-rotatable relative to the internal gear and is fixed to the first robot member. The fixing member is fixed to the first robot member by bringing an inner peripheral surface of the first robot member and an outer peripheral surface of the fixing member into pressure contact with each other by fastening using a first fastening member. At least a part of an axial range of the first fastening member does not overlap internal teeth of the internal gear when viewed in a radial direction.
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公开(公告)号：US11752619B2
公开(公告)日：2023-09-12
申请号：US16200229
申请日：2018-11-26
发明人： Koji Moritani , Akira Yamamoto
CPC分类号： B25J9/0009 , B25J9/102 , B25J18/00 , F16H49/001 , H02K7/116 , H02K21/14
摘要： A gear motor includes a motor and a speed reducer and drives a joint portion of a cooperating robot which performs a work in collaboration with a person. In addition, in the gear motor, an operation ratio is 20% ED or less, a reduction ratio of the speed reducer is 30 or less, and an output rotating speed of the motor is 1000 rpm or less.
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