Patent ID: 9562596
Date: 2017-02-07
CPC Classifications: A47B,F16H,F25D,Y10T

Claim:
1. A gear mechanism comprising: a first gear; a second gear which is coaxially disposed with the first gear and is provided with a recessed part on an end face of a first gear side and a tube-shaped part formed on an outer peripheral side of the recessed part; and a torque limiter provided between the first gear and the second gear, wherein the torque limiter comprises: wherein the second gear is an inclined teeth gear in which an outer face of the tube-shaped part is formed with teeth bottoms inclined with respect to an axial line direction and teeth bottoms of the inner teeth of the tube-shaped part are extended in parallel with the axial line direction so that, when viewed in a radial direction, an overlapped thin portion of the tooth bottom of the inner teeth with the tooth bottom of the outer face of the tube-shaped part is reduced to secure strength of the tube-shaped part; and wherein the inclined teeth gear which is the second gear is directly engaged with a worm gear rotationally driven by a motor.