TOOL WITH A MANUAL REASSEMBLY ELASTIC MOTOR AND DEVICE THAT PREVENTS BREAKAGE DURING EXCESSIVE REASSEMBLY

摘要

The invention relates to a device which prevents the rupture of the elastic of a flying toy moving by flapping wings (taken as an example in the invention), when its reassembly is excessive. It consists of a hollow body in which is incorporated a resilient motor connected to the actuating mechanism of the wings at the front and winding at the rear. The front mechanism has a flexible retainer whose free end is tooth-shaped. A crank whose front portion is cylindrical rotates under the effect of the torsion torque of the elastic motor. Through a crankpin, a link and two feet of wings, it drives the two wings in an alternating flapping movement. The cylindrical portion of the crank has a slot in which the tooth of the stopper is introduced at the beginning of the winding, which blocks the crank and reassembly can be performed. But, if this reassembly exceeds the maximum of revolutions that the system can support before rupture (of the elastic and / or of the mechanism), the flexible retainer is arched, the tooth switches and slips out of the slot of the cylinder from the crank. The flapping mechanism of the wings is then released, the elastic relaxes and avoids breakage and / or that of the mechanism.