Brake disc releasing device, turning device, elevator rescue kit and method
AssigneeOtis Elevator Company
InventorsFengKun Zhu, Hongliang Wu, James L. Hubbard
Life of this patent
Estimating the term…
Abstract
A brake disc release device, a turning device, and an elevator rescue package and method. The brake disc release device comprises: an actuating mechanism; a gear connected to a first end of the actuating mechanism; a first slider capable of sliding along a first guide piece and comprising a rack portion for engagement with the gear and a first wedge portion; a second slider capable of sliding along a second guide piece and comprising a second wedge portion for engagement with the first wedge portion of the first slider; and a pulling cable having a first end connected to the second slider and a second end connected to the brake disc.
Claims22
A brake disc release device for elevators, comprising:
- an actuating mechanism having a first end and a second end;
- a gear connected to the first end of the actuating mechanism;
- a first slider capable of sliding along a first guide piece and comprising a rack portion for engagement with the gear and a first wedge portion;
- a second slider capable of sliding along a second guide piece and comprising a second wedge portion for engagement with the first wedge portion of the first slider;
- and
- a pulling cable having a first end connected to the second slider and a second end connected to the brake disc;
- wherein the actuating mechanism is rotated to drive the gear to rotate, drive the first slider to move in a first direction by means of the engagement between the gear and the rack portion of the first slider, drive the second slider to move in a second direction by means of the engagement between the first wedge portion of the first slider and the second wedge portion of the second slider, and thus drive the pulling cable to pull the brake disc.
A turning device, comprising:
- a hand disc coupled to an input shaft;
- a reduction gear set accommodated in a housing and connected to the input shaft and an output shaft;
- and
- a shaft connector for connecting the output shaft and a motor spindle.
An elevator rescue method, comprising:
- connecting the turning device to the motor spindle, and tightly grasping the hand disc of the turning device;
- connecting the pulling cables of the brake disc release device to the brake disc;
- rotating the actuating mechanism of the brake disc release device to pull away the brake disc and thus release the motor spindle;
- and
- slowly rotating the hand disc of the turning device to enable the elevator car to dock at a safe floor.
Dependencies are inferred from the claim text.