Patents by Inventor Ziming GUO
Ziming GUO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12330299Abstract: An internally engaged planetary gear device includes a bearing member, an internally toothed gear, a planetary gear, a plurality of inner pins, and a plurality of rolling bearings. When respectively inserted into a plurality of inner pin holes formed in the planetary gear, the plurality of inner pins are configured to rotate relative to the internally toothed gear while revolving in the inner pin holes. The plurality of rolling bearings are configured to hold respective inner pins of the plurality of inner pins at two sides in a direction parallel to a rotation axis Ax1 with respect to the planetary gear. Each inner pin of the plurality of inner pins is configured to be held on each rolling bearing in a state capable of rotation.Type: GrantFiled: August 25, 2023Date of Patent: June 17, 2025Assignees: MIDEA GROUP CO., LTD., GUANGDONG JIYA PRECISION MACHINERY TECHNOLOGY CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., GUANGDONG MIDEA ELECTRIC CO., LTD.Inventors: Wenjie Lin, Gang Wang, Kiyoji Minegishi, Ziming Guo, Tsuyoshi Isaji
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Patent number: 12326181Abstract: An internal-meshing planetary gear device includes an internally toothed gear provided with internal teeth and is fixed to an outer ring. A planetary gear is provided with external teeth which partially mesh with the internal teeth. A plurality of internal pins is respectively inserted into a plurality of internal pin holes formed on the planetary gear revolve within the internal pin holes and rotate relative to the internally toothed gear. An inner ring includes a first inner ring and a second inner ring, which are opposite each other in a direction parallel to a rotation axis and have opposite surfaces that come in contact with each other. The first inner ring has a plurality of holding holes, through which the plurality of internal pins respectively penetrate in the direction parallel to the rotation axis. Each of the plurality of internal pins is held in the inner ring and is rotatable.Type: GrantFiled: May 11, 2023Date of Patent: June 10, 2025Assignees: MIDEA GROUP CO., LTD., GUANGDONG MIDEA ELECTRIC CO, . LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO, . LTD., GUANGDONG JIYA PRECISION MACHINERY TECHNOLOGY CO, LTD.Inventors: Wenjie Lin, Gang Wang, Kiyoji Minegishi, Ziming Guo, Tsuyoshi Isaji
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Patent number: 12297896Abstract: The harmonic gear device includes a rigid internal gear, a flexible external gear and a wave generator. The rigid internal gear is an annular component having internal teeth. The flexible external gear is an annular component having external teeth and configured on an inner side of the rigid internal gear. The wave generator is configured on an inner side of the flexible external gear and flexes the flexible external gear. The harmonic gear device is configured to deform the flexible external gear along with the rotation of the wave generator with the rotation shaft as a center, so that some of the external teeth mesh with some of the internal teeth. The flexible external gear thus rotates relative to the rigid internal gear according to the difference in the number of teeth between the flexible external gear and the rigid internal gear.Type: GrantFiled: April 14, 2023Date of Patent: May 13, 2025Assignees: MIDEA GROUP CO., LTD., GUANGDONG JIYA PRECISION MACHINERY TECHNOLOGY CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., GUANGDONG MIDEA ELECTRIC CO., LTD.Inventors: Wenjie Lin, Gang Wang, Kiyoji Minegishi, Tsuyoshi Isaji, Ziming Guo
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Patent number: 12152666Abstract: An internal meshing planetary gear apparatus and a robotic joint device. The internal meshing planetary gear apparatus includes an internally toothed gear, a planetary gear, a plurality of inner pins, an eccentric shaft which acts as an input shaft, and a bushing. The plurality of inner pins is respectively inserted into a plurality of inner pin holes formed in the planetary gear, and is configured to revolve in the inner pin holes while rotating relative to the internally toothed gear about a rotation axis. The eccentric shaft is configured to cause the planetary gear to oscillate eccentrically. The bushing includes a fixing structure configured to fix an object member, and the bushing is combined with the eccentric shaft and configured to rotate together with the eccentric shaft.Type: GrantFiled: October 24, 2023Date of Patent: November 26, 2024Assignees: MIDEA GROUP CO., LTD., GUANGDONG JIYA PRECISION MACHINERY TECHNOLOGY CO., LTD., GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD.Inventors: Gang Wang, Wenjie Lin, Kiyoji Minegishi, Ziming Guo, Tsuyoshi Isaji
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Publication number: 20240052923Abstract: An internal meshing planetary gear apparatus and a robotic joint device. The internal meshing planetary gear apparatus includes an internally toothed gear, a planetary gear, a plurality of inner pins, an eccentric shaft which acts as an input shaft, and a bushing. The plurality of inner pins is respectively inserted into a plurality of inner pin holes formed in the planetary gear, and is configured to revolve in the inner pin holes while rotating relative to the internally toothed gear about a rotation axis. The eccentric shaft is configured to cause the planetary gear to oscillate eccentrically. The bushing includes a fixing structure configured to fix an object member, and the bushing is combined with the eccentric shaft and configured to rotate together with the eccentric shaft.Type: ApplicationFiled: October 24, 2023Publication date: February 15, 2024Inventors: Gang WANG, Wenjie LIN, Kiyoji MINEGISHI, Ziming GUO, Tsuyoshi ISAJI
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Publication number: 20230405805Abstract: An internally meshing planetary gear apparatus includes a bearing component, an internal gear, a planetary gear a plurality of inner pins, and a support structure. The plurality of inner pins are configured to be respectively inserted into a plurality of inner pin holes formed by the planetary gear. The inner pins are configured to revolve within the inner pin holes, and simultaneously rotate relative to the internal gear). When the plurality of inner pins are not rotating relative to the internal gear, a respective inner circumferential face of each pin hole among the plurality of inner pin holes presses against each pin among the plurality of inner pins, and the pin holes exert a pre-pressure on each pin among the plurality of inner pins. The support structure is configured to support each pin among the plurality of inner pins.Type: ApplicationFiled: August 25, 2023Publication date: December 21, 2023Inventors: Wenjie LIN, Gang WANG, Kiyoji MINEGISHI, Ziming GUO, Tsuyoshi ISAJI
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Publication number: 20230398682Abstract: An internally engaged planetary gear device includes a bearing member, an internally toothed gear, a planetary gear, a plurality of inner pins, and a plurality of rolling bearings. When respectively inserted into a plurality of inner pin holes formed in the planetary gear, the plurality of inner pins are configured to rotate relative to the internally toothed gear while revolving in the inner pin holes. The plurality of rolling bearings are configured to hold respective inner pins of the plurality of inner pins at two sides in a direction parallel to a rotation axis Ax1 with respect to the planetary gear. Each inner pin of the plurality of inner pins is configured to be held on each rolling bearing in a state capable of rotation.Type: ApplicationFiled: August 25, 2023Publication date: December 14, 2023Inventors: Wenjie LIN, Gang WANG, Kiyoji MINEGISHI, Ziming GUO, Tsuyoshi ISAJI
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Publication number: 20230304568Abstract: The harmonic gear device includes a rigid internal gear, a flexible external gear and a wave generator. The rigid internal gear is an annular component having internal teeth. The flexible external gear is an annular component having external teeth and configured on an inner side of the rigid internal gear. The wave generator is configured on an inner side of the flexible external gear and flexes the flexible external gear. The harmonic gear device is configured to deform the flexible external gear along with the rotation of the wave generator with the rotation shaft as a center, so that some of the external teeth mesh with some of the internal teeth. The flexible external gear thus rotates relative to the rigid internal gear according to the difference in the number of teeth between the flexible external gear and the rigid internal gear.Type: ApplicationFiled: April 14, 2023Publication date: September 28, 2023Inventors: Wenjie LIN, Gang WANG, Kiyoji MINEGISHI, Tsuyoshi ISAJI, Ziming GUO
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Publication number: 20230279926Abstract: An internal-meshing planetary gear device includes an internally toothed gear provided with internal teeth and is fixed to an outer ring. A planetary gear is provided with external teeth which partially mesh with the internal teeth. A plurality of internal pins is respectively inserted into a plurality of internal pin holes formed on the planetary gear revolve within the internal pin holes and rotate relative to the internally toothed gear. An inner ring includes a first inner ring and a second inner ring, which are opposite each other in a direction parallel to a rotation axis and have opposite surfaces that come in contact with each other. The first inner ring has a plurality of holding holes, through which the plurality of internal pins respectively penetrate in the direction parallel to the rotation axis. Each of the plurality of internal pins is held in the inner ring and is rotatable.Type: ApplicationFiled: May 11, 2023Publication date: September 7, 2023Inventors: Wenjie LIN, Gang WANG, Kiyoji MINEGISHI, Ziming GUO, Tsuyoshi ISAJI
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Publication number: 20230250865Abstract: A harmonic gear device includes a rigid internal gear, a flexible external gear and a wave generator. The rigid internal gear is an annular component having internal teeth. The flexible external gear is an annular component, which has external teeth and is configured on an inner side of the rigid internal gear. The wave generator is configured on an inner side of the flexible external gear, and deflects the flexible external gear. The harmonic gear device deforms the flexible external gear along with the rotation of the wave generator taking a rotation axis as the center, such that some of the external teeth mesh with some of the internal teeth. The flexible external gear rotates relative to the rigid internal gear in accordance with the difference between the numbers of teeth of the flexible external gear and the rigid internal gear.Type: ApplicationFiled: April 14, 2023Publication date: August 10, 2023Inventors: Gang WANG, Wenjie LIN, Kiyoji MINEGISHI, Tsuyoshi ISAJI, Ziming GUO