Starting device for an internal combustion engine

摘要

A starting device for an internal combustion engine includes a pulley mounted rotatably in a housing which can be set in rotation by a tension means to produce a drive torque for a motor shaft by a starter handle and which is connected to an engaging member by a damping spring. The drive torque is transmitted to the motor shaft to start the internal combustion engine, whereby under torsion of the damping spring, a twisting of the pulley against the engaging member is rendered possible until a stop element impacts against a counter-stop to delimit the twisting, which enables a high operational readiness of the starting device. In the case of a defect of the damping spring, the stop element and/or the counter-stop is formed from a material which has a higher strength than the material of the engaging member and/or the material of the pulley.

主权项

1. A starting device for an internal combustion engine comprising:
a pulley mounted rotatably in a housing; a tensioning member configured to rotate the pulley in response to a force introduced via a starter handle, the pulley being configured to produce a drive torque for a motor shaft; an engaging member coupled with the pulley by a damping spring formed from a spring wire, the damping spring being configured to transmit the drive torque to the motor shaft to start the internal combustion engine; a stop element arranged on the engaging member; and a counter-stop arranged on the pulley, wherein under torsion of the damping spring, the pulley is rotatable relative to the engaging member until the stop element impacts against the counter-stop, the stop element and/or the counter-stop is formed from a material which has a higher strength than a material of the engaging member and/or a material of the pulley, and the stop element is made of a metal material, and the engaging member and/or the pulley is formed from a plastic material, the counter-stop is configured as an insert element made of a high-strength material, and is inserted in the pulley, and the counter-stop is statically coupled relative to the pulley.