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An output load limiter is provided in an actuator to prevent excessive drive torque from being transmitted from a primary mover through the actuator. The actuator includes a housing, an output shaft mounted for rotation in the housing about an axis, and a drive member. The output shaft includes an e

An output load limiter is provided in an actuator to prevent excessive drive torque from being transmitted from a primary mover through the actuator. The actuator includes a housing, an output shaft mounted for rotation in the housing about an axis, and a drive member. The output shaft includes an external, helical spline. The drive member includes an internal helical spline engaged with the external helical spline to transmit a drive torque to the output shaft. The internal and external splines have sufficient length along the axis to allow translation of the drive member along the axis relative to the output shaft between a first position where the drive member can transmit a drive torque to the output shaft to rotate the output shaft about the axis and a second position where the drive member is restrained from transmitting additional drive torque to the output shaft.

대표청구항 ▼

[What is claimed is:] [1.]a housing;an output shaft mounted for rotation in said housing about an axis, said output shaft including an external helical spline;a drive member including an internal helical spline engaged with said external helical spline to transmit a drive torque to the output shaft,

[What is claimed is:] [1.]a housing;an output shaft mounted for rotation in said housing about an axis, said output shaft including an external helical spline;a drive member including an internal helical spline engaged with said external helical spline to transmit a drive torque to the output shaft, said internal and external splines having sufficient length along said axis to allow translation of the drive gear along said axis relative to the output shaft between a first position where the drive member can transmit a drive torque to the output shaft to rotate the output shaft about said axis and a second position where said drive member is restrained from transmitting additional drive torque to the output shaft.