초록 ▼

An improved visual and tactile indicator (30) for indicating the status of a connection between a shaft (14) and a constant speed drive transmission (22) by a coupling mechanism (20) is disclosed. The invention utilizes a first movable member (32) which is movable along a longitudinal axis between f

An improved visual and tactile indicator (30) for indicating the status of a connection between a shaft (14) and a constant speed drive transmission (22) by a coupling mechanism (20) is disclosed. The invention utilizes a first movable member (32) which is movable along a longitudinal axis between first and second positions, the first position indicating that the shaft is connected to the rotary source of power and the second position indicating that the shaft is not connected to the rotary source of power and a second movable member (34) which is movable along a longitudinal axis between first and second positions, the second member being adjacent to the first member with the longitudinal axes being parallel. A locking mechanism (36) locks the first and second movable members longitudinally with respect to each other when the input shaft is coupled to the constant speed drive transmission by the coupling mechanism. The indicator of the present invention is immune to false indications caused by vibration or high inertial forces caused by landings of aircraft.

대표청구항 ▼

An indicator for indicating if a shaft is connected to a rotary source of power comprising: a first movable member supported at least partially within a case which is movable along a longitudinal axis between first and second positions, the first position indicating that the shaft is connected to th

An indicator for indicating if a shaft is connected to a rotary source of power comprising: a first movable member supported at least partially within a case which is movable along a longitudinal axis between first and second positions, the first position indicating that the shaft is connected to the rotary source of power and the second position indicating that the shaft is not connected to the rotary source of power; a second movable member supported at least partially within the case which is movable along a longitudinal axis between first and second positions, the first position indicating that the shaft is connected to the rotary source of power and the second position indicating that the shaft is not connected to the rotary source of power, the second member being adjacent to the first member; a locking mechanism having first and second positions for retaining the first and second members in the first position to lock the members against relative movement when the locking mechanism is in the first position and permitting relative movement of the members to the second position when the locking mechanism is in the second position, the movement of the locking mechanism to the second position enabling at least one of the members to move, which movement causes the shaft to be disconnected from the rotary source of power in response to rotation of the rotary source of power; and a first spring applying a force to the first and second members which forces the first and second members to the second position when the locking mechanism is in the second position.