A ratchet tooth ring has ratchet teeth with a tooth root where a spline tooth is placed to prevent a thin spot in the ring at the tooth root. By using the same number of spline teeth on the periphery of the ratchet ring as the number of ratchet teeth and positioning the spline tooth opposite the ratchet tooth root the normal thin spot in the ring is avoided. The ratchet ring is mounted into a hub body and the spline teeth transfer torque from the ratchet ring to the hub body. The straight spline tooth on the periphery of the ring has a steep ramp angle to avoid multiplying the generated radial force exerted on the housing excessively when torque is applied. The ratchet teeth and the spline teeth can be forged at the same time making manufacturing lower cost.
Ratchet Tooth Ring Torque Transfer Through Straight Spline Teeth
2019-05-09
Patent
Electronic Resource
English
System and method for improved ratchet device including pivoting teeth
European Patent Office | 2023
|European Patent Office | 2024
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