Patent ID: 7093577
Filing Date: 2006-08-22
Classification: F02N,F16F

Abstract:
1. A recoil starter comprising: a rope reelrotatably mounted on a support shaft that is formed inside a case and around which a recoil rope is wound; a recoil spring which rotationally urges the rope reel in a direction of taking up the recoil rope; a cam disposed rotatably with respect to the support shaft; a rotary member on which a one-way clutch mechanism is disposed, and which is to be attached to a crankshaft of an engine, the one-way clutch mechanism being engaged and disengaged with the cam; bosses placed respectively on the rope reel and the cam to butt against each other, and which have a same outer diameter; and a damper spring placed on outer peripheries of the bosses and having an axial length, ends of which are engaged with the rope reel and the cam, respectively, and which has a torsion coil spring-like shape, wherein: a rotational force of the rope reel is transmitted to the cam via an elastic force of the damper spring to start the engine, a wire member constituting the damper spring comprises a section shape in which at least an inner peripheral side is linearly formed, thereby enabling an inner side face of the damper spring to be tightly wound in a wide area around outer peripheral faces of the bosses, and end faces of the bosses which are formed respectively on the rope reel and the cam butt against each other in a location centered along the axial length of the damper spring.