JPS5594053A - Spring energy storage mechanism - Google Patents

Abstract

PURPOSE: To make faster the returning speed of rocking lever, and shorten a length of time required for storage of the spring energy, by providing a coupling between cam and cam shaft, in such manner with a rocker cam of the rocking lever made capable of rotating faster than the cam shaft.

CONSTITUTION: With the tooth of a claw gear 1 fed, when made contact between a cam 15 and a roller 13 with a longest distance apart, a rocking lever 7 is applied a force rotating in the reverse direction to an arrow mark A, as shown in the drawing, from a claw gear 11 and a return spring 9. Accordingly, to the cam 15, is acted a force, toward the direction of arrow mark F, as shown in the drawing, on an extension line, connecting the contact point, between the roller 13 and the cam 15, and the center of a rotating center pin 14, and deflected from the center of a rotating center pin 18. In this way, the cam 15 is applied a force rotating in the direction of an arrow mark D, as shown in the drawing, and if rotated faster than a claw gear 17, a claw 19 is pushed by the point end of tooth of the claw gear 17 and retracted into a cam 19 side, and a disengagement between the both can provide a relative motion.

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