Patent ID: 9382971
Filing Date: 2016-07-05
CPC Classification: F16H,G03G,Y10T

Claim Text:
1. A drive transmitter comprising: an internally toothed gear; a first support shaft to rotatably support the internally toothed gear without using a bearing; a drive source to apply a driving force to the internally toothed gear; a rotary body, to which the driving force is transmittable via the internally toothed gear; a grease retainer disposed to retain grease on at least one of a portion of the first support shaft facing the internally toothed gear and a portion of the internally toothed gear facing the first support shaft, a housing to accommodate at least one drive transmitting member in a recess thereof, the at least one drive transmitting member being configured to transmit the driving force to the internally toothed gear and to the rotary body via the internally toothed gear; and a reinforcing member to reinforce the housing, the reinforcing member being bridged across the recess and fixed to the housing, wherein the reinforcing member includes a second support shaft to rotatably support the at least one drive transmitting member, and includes three or more fixing portions at which the reinforcing member is fixed to the housing, and wherein the second support shaft is provided in a position of a center of gravity of a polygon formed by connecting the fixing portions of the reinforcing member.