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2. 发明公开

EP3779240A1 DECELERATION MECHANISM AND MOTOR HAVING DECELERATION MECHANISM INSTALLED THEREIN 审中-实审
公开(公告)号：EP3779240A1
公开(公告)日：2021-02-17
申请号：EP19782225.7
申请日：2019-04-03
申请人： Mitsuba Corporation
发明人： KOJIMA, Naoki , KOBAYASHI, Motoaki , TOKIZAKI, Teppei , KAWASHIMA, Yoshichika
IPC分类号： F16H55/08 , F16H1/08 , H02K7/116 , F16H55/06
摘要： According to the present invention, one engagement protrusion part 31c having a spiral shape is provided in a pinion gear 31, a plurality of engagement recess parts 32d engaged with the engagement protrusion part 31c are provided in a helical gear 32, and the engagement protrusion part 31c and the engagement recess parts 32d are each formed to have an arc shape in a direction perpendicular to the axial direction of the pinion gear 31. As a result, the pinion gear 31 and the helical gear 32 can be configured in an arc-shaped protrusion/recess engagement structure that does not deteriorate the state of engagement therebetween. Also, by increasing the number of teeth on the helical gear 32 while keeping the number of teeth on the pinion gear 31 at one tooth, the difference in the number of teeth can be easily increased. Therefore, the deceleration ratio of a deceleration mechanism 30 can be increased without increasing the volume thereof.

3. 发明公开

EP4280433A3 DECELERATION MECHANISM AND MOTOR HAVING DECELERATION MECHANISM INSTALLED THEREIN 审中-公开
公开(公告)号：EP4280433A3
公开(公告)日：2024-02-28
申请号：EP23201770.7
申请日：2019-04-03
申请人： Mitsuba Corporation
发明人： KOJIMA, Naoki , KOBAYASHI, Motoaki , TOKIZAKI, Teppei , KAWASHIMA, Yoshichika
IPC分类号： F16H55/08 , F16H1/08 , H02K7/116
摘要： A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.

4. 发明公开

EP4280433A2 DECELERATION MECHANISM AND MOTOR HAVING DECELERATION MECHANISM INSTALLED THEREIN 审中-公开
公开(公告)号：EP4280433A2
公开(公告)日：2023-11-22
申请号：EP23201770.7
申请日：2019-04-03
申请人： Mitsuba Corporation
发明人： KOJIMA, Naoki , KOBAYASHI, Motoaki , TOKIZAKI, Teppei , KAWASHIMA, Yoshichika
IPC分类号： H02K7/116
摘要： A deceleration mechanism is provided with first and second gears, a first tooth part arranged in the first gear and extending spirally in an axial direction of the first gear, an engagement projected part arranged on the first tooth part, second tooth parts arranged on the second gear, and an engagement recessed part arranged between the adjacent second tooth parts. The engagement projected part is formed in an arc shape in a direction orthogonal to the axial direction of the first gear and has a curvature center eccentric from a rotation center of the first gear. The second tooth parts are inclined with respect to the axial direction of the first gear and arranged in a circumferential direction of the second gear. The engagement projected part is formed in an arc-shape in a direction orthogonal to the axial direction of the first gear and engaged with the engagement projected part.

5. 发明公开

EP3467344A1 SPEED REDUCER-ATTACHED MOTOR 审中-公开
公开(公告)号：EP3467344A1
公开(公告)日：2019-04-10
申请号：EP18187062.7
申请日：2018-08-02
申请人： MITSUBA Corporation
发明人： KOBAYASHI, Motoaki
IPC分类号： F16H1/32
摘要： A speed reducer-attached motor includes a speed reduction mechanism (3). The speed reduction mechanism (3) includes: a gear casing (10); a first eccentric part (25) of which a center (O1) is at an eccentric position with respect to a rotation axis line (LI); a second eccentric part (26) of which a center (O2) is at a position that is displaced by 180° around the rotation axis line (L1) from the center of the first eccentric part (25); a first swing gear (13) that is fitted rotatably to the first eccentric part (25) and that has a first external tooth (33a) and a first internal tooth (33b); a second swing gear (14) that is fitted rotatably to the second eccentric part (26) and that has a second external tooth (41c) and a second internal tooth (42); a fixed gear (12) that has a third internal tooth (27a) which is engaged with the first external tooth (33a) and the second external tooth (41c); and an output gear (52) that has a third external tooth (60a) which is engaged with the first internal tooth (33b) and the second internal tooth (42), that is rotated around the rotation axis line (LI), and that outputs power to an external apparatus.

6. 发明公开

EP3453916A1 SPEED REDUCER-ATTACHED MOTOR 审中-公开
公开(公告)号：EP3453916A1
公开(公告)日：2019-03-13
申请号：EP18185155.1
申请日：2018-07-24
申请人： MITSUBA Corporation
发明人： KOBAYASHI, Motoaki
IPC分类号： F16H1/32 , H02K1/00
摘要： A speed reducer-attached motor includes: an eccentric part (67) that is configured to receive a power of a motor part (10) and is rotated; a swing gear (103) that is fixed to an outer circumferential surface (67a) and that has a first internal tooth (103d) and a first external tooth (103b); a fixed gear (102) that has a second internal tooth (102a) which is engaged with the first external tooth (103b) of the swing gear (103); and an output gear (104) that has a second external tooth (104a) which is engaged with the first internal tooth (103d) of the swing gear (103), that is rotated concentrically with a fixation shaft (2), and that is configured to output a power to an external apparatus, wherein each of modules of the first internal tooth (103d) and the second external tooth (104a) is set to be different from modules of the first external tooth (103b) and the second internal tooth (102a), and a tooth number of the second external tooth (104a) is set to be the same as the tooth number of the first internal tooth (103d).

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