Roller system, roller braking device and elevator system

Patent metadata

Field	Value
Publication number	US-11667496-B2
Application number	US-202117391768-A
Country	US
Kind code	B2
Filing date	Aug 2, 2021
Priority date	Nov 2, 2020
Publication date	Jun 6, 2023
Grant date	Jun 6, 2023

Abstract

A roller system, a roller brake device and an elevator system. The roller brake device is used for the roller system. The elevator system includes the roller system. The roller system comprises a roller assembly and a roller brake device, the roller brake device includes: a body, the roller brake device is mounted to the roller assembly by the body; an actuation device mounted to the body; and a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position.

First claim

What is claimed is:

1. A roller system, characterized in that, the roller system comprises a roller assembly and a roller brake device, and the roller brake device includes:
a body, by which the roller brake device is mounted to the roller assembly;
an actuation device mounted to the body; and
a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position,
and wherein, a part of the brake acted by the actuation device and a part of the brake engaging the roller are both located on the same side of a pivot shaft between the body and the brake;
wherein the actuation device includes an actuation lever connected to the body in a pivotable manner, and one end of the actuation lever is used to actuate the brake.

2. The roller system according to claim 1 , wherein the roller brake device further includes:
a first biasing device disposed between the body and the brake, and biasing the brake in a direction away from the roller.

3. The roller system according to claim 2 , wherein the first biasing device is a coil spring connected between the body and the brake, or the first biasing device is a torsion spring placed on a pivot shaft between the brake and the body.

4. The roller system according to claim 1 , wherein the brake has opposite first and second side surfaces, and the actuation device acts on the first side surface, the brake acts on the roller via the second side surface.

5. The roller system according to claim 4 , wherein a part on the first side surface interacted with the actuation device is an inclined surface.

6. The roller system according to claim 5 , wherein at the brake position, an axis of an actuation lever and the inclined surface are perpendicular to each other.

7. The roller system according to claim 1 , wherein a second biasing device is provided between the actuation lever and the body, and the second biasing device biases the actuation lever in a direction causing the one end of the actuation lever away from the brake.

8. The roller system according to claim 7 , wherein the second biasing device is a coil spring connected between the actuation lever and the body, or, the second biasing device is a torsion spring placed on a pivot shaft between the actuation lever and the body.

9. The roller system according to claim 1 , wherein the actuation lever connects a cable transmission mechanism driven by a motor or an electromagnetic solenoid.

10. The roller system according to claim 1 , wherein the actuation lever connects a gear transmission mechanism driven by a motor.

11. A roller brake device for the roller system according to claim 1 .

12. An elevator system, characterized in that, the elevator system includes the roller system according to claim 1 , wherein:
the roller system is a guide wheel system in the elevator system and the roller is a guide wheel in the guide wheel system; or
the roller system is a traction wheel system in the elevator system and the roller is a traction wheel in the traction wheel system.

13. A roller system, characterized in that, the roller system comprises a roller assembly and a roller brake device, and the roller brake device includes:
a body, by which the roller brake device is mounted to the roller assembly;
an actuation device mounted to the body; and
a brake connected to the body in a pivotable manner, and the actuation device can move the brake from a rest position to a brake position, wherein the brake engages and brakes a roller in the roller assembly at the brake position, and the brake is disengaged from the roller at the rest position,
and wherein, a part of the brake acted by the actuation device and a part of the brake engaging the roller are both located on the same side of a pivot shaft between the body and the brake;
wherein the actuation device includes an actuation lever connected to the body in a pivotable manner, and one end of the actuation lever is provided with a rolling wheel, and the actuation lever actuates the brake via the rolling wheel.

Assignees

• Otis Elevator Co

Inventors

• Li Bichun
• Wang Shenhong

Classifications

• B66B11/028

  Active systems · CPC title

• F16D2121/14

  Mechanical · CPC title

• F16D65/18

  adapted for drawing members together {, e.g. for disc brakes} · CPC title

• B66B5/18 Primary

  and applying frictional retarding forces · CPC title

• B66B11/0293 Primary

  Suspension locking or inhibiting means to avoid movement when car is stopped at a floor (locking car to building while loading to avoid movement B66B17/34) · CPC title