Rotational force transmitting device

摘要

A rotational force transmitting device includes: an inertia wheel connected to an output gear; a spindle coupled freely rotatable to the center of the front surface of the inertia wheel; a power transmitting eccentric body extended vertically with respect to the rotary shaft of the spindle; an insert pin inserted into a guide hole, a position restoring spring inserted into the guide hole, for elastically supporting the insert pin in a backward direction; and a balance weight coupled rotatably to the rear surface of the inertia wheel, the balance weight rotating with the centrifugal force generated by the rotation of the inertia wheel to push the insert pin forward to allow the insert pin and the power transmitting eccentric body to be engaged with each other.

主权项

1. A rotational force transmitting device comprising:
an inertia wheel 100 connected to an output gear 22 rotating engagedly with a driving motor 11 and rotating by receiving the rotational force of the driving motor 11; a spindle 200 coupled freely rotatable to the center of the front surface of the inertia wheel 100; a power transmitting eccentric body 210 extended vertically with respect to the rotary shaft of the spindle 200 from one side of the spindle 20; an insert pin 300 inserted into a guide hole 110 formed passed through the front and rear surfaces of the inertia wheel 100; a position restoring spring 320 inserted into the guide hole 110, for elastically supporting the insert in 300 in a backward direction; and a balance weight 400 coupled rotatable to the rear surface of the inertia wheel 100, for supporting the rear end periphery of the insert pin 300, the balance weight 400 rotating with the centrifugal force generated by the rotation of the inertia wheel 100 to push the insert pin 300 forward to allow the insert pin 300 and the power transmitting eccentric body 210 to be engaged with each other, wherein the balance weight 400 is punched at the center portion thereof and has a general shape of “□”, “◯”, or “∩”, the balance weight 400 having a rear weight portion 410 formed protruded backward on one side supporting the rear end periphery of the insert pin 300 around a balance pin 430 as a rotary shaft thereof and a front weight portion 420 formed protruded forward on the other side thereof.