Patent ID: 7261637
Filing Date: 2007-08-28
Classification: F16D

Abstract:
1. A rotating shaft coupling which connects a first shaft and a second shaft arranged co-axially with each other, comprises: a first rotating body disposed to one of the first and the second shaft; a second rotating body disposed to the other, as opposed to the first rotating body; a plurality of pins spaced by an interval of an equal angle on a circumference of the first rotating body at a predetermined radius away from a shaft center thereof, the pins extending in a shaft direction and having the same diameter with each other; and a plurality of engagement sections at locations in the second rotating body corresponding to the pins to receive the pins, wherein: a first allowance is arranged between an inner surface of one of the engagement sections and a pin engaged with the one, the first allowance corresponding to a deviation amount assumed in design between a shaft center of the first shaft and a shaft center of the second shaft, a second allowance is arranged between an inner surface of the other of the engagement sections and the pin engaged with the other, the second allowance being larger than the first allowance, and a rotation torque between the first and second shaft is transmitted through one of the pins and the corresponding engagement section having the first allowance.