Patent ID: 11913533
Assignee: SKG CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A strain wave gearing, comprising:
an internal gear including an inner gear formed along an inner circumferential surface;
a wave generator including a cam that rotates around an axis in accordance with a rotation input;
a flex gear including (i) a ring-shaped outer gear that is formed along an outer peripheral surface with a smaller number of teeth than the inner gear and that has an inner circumferential side fitted to the wave generator and (ii) an adjacent member adjacent to the outer gear in a direction along the axis;
an outputter that includes an opposing portion facing the adjacent member in a radial direction centered on the axis and that rotates together with the flex gear with respect to the internal gear; and
a transmitter that extends along the radial direction and that transmits motive power of the flex gear to the outputter, wherein
the cam has N poles positioned at equal intervals in a circumferential direction centered on the axis, and causes the outer gear to engage with the inner gear at N locations, N being an integer of 2 or greater,
the transmitter is fixed to one of the opposing portion and the adjacent member, and an insertion portion into which the transmitter is inserted is provided in another of the opposing portion and the adjacent member,
the insertion portion has a width along the circumferential direction that is wider than the transmitter, and allows relative displacement in the circumferential direction of the flex gear and the outputter, and
a plurality of transmission pairs is arranged in the circumferential direction, the transmission pairs being pairs of the transmitter and the insertion portion.