Gear mechanism and gear
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHikaru Sugata
Life of this patent
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Abstract
A gear mechanism includes a gear including external teeth, the external teeth including a plurality of tooth parts defined by a cycloid curve, a plurality of contacting members disposed on an outer side and in a circumferential direction of the external teeth, the external teeth being brought into pressure contact with the plurality of contacting members, and a mechanism configured to eccentrically move the gear. A plurality of through holes penetrating the gear in a thickness direction of the gear are formed in the gear in the circumferential direction of the gear, the cycloid curve extends outward from an ideal cycloid curve without the external teeth interfering with the plurality of contacting members, the plurality of contacting members being in contact with the ideal cycloid curve.
Claims8
A gear mechanism comprising:
- a gear including external teeth, the external teeth including a plurality of tooth parts defined by a cycloid curve;
- a plurality of contacting members disposed on an outer side and in a circumferential direction of the external teeth, the external teeth being brought into pressure contact with the plurality of contacting members;
- and
- a mechanism configured to eccentrically move the gear, wherein
- in order to elastically deform the gear by the pressure contact, a plurality of through holes penetrating the gear in a thickness direction of the gear are formed in the gear in the circumferential direction of the gear,
- the cycloid curve extends outward from an ideal cycloid curve without the external teeth interfering with the plurality of contacting members, the plurality of contacting members being in contact with the ideal cycloid curve, and
- the gear is eccentrically rotated while being elastically deformed in a state in which the external teeth are always pressed against the plurality of contacting members.
A gear comprising external teeth, the external teeth including a plurality of tooth parts defined by a cycloid curve and the external teeth being brought into pressure contact with a plurality of contacting members disposed on an outer side and in a circumferential direction of the external teeth, wherein
- a plurality of through holes penetrating the gear in a thickness direction of the gear are formed in the gear in the circumferential direction of the gear in order to elastically deform the gear by the pressure contact, and
- the cycloid curve extends outward from an ideal cycloid curve without the external teeth interfering with the plurality of contacting members which is in contact with the ideal cycloid curve.
Dependencies are inferred from the claim text.