Elevator system and guiding device therefor

Patent metadata

Field	Value
Publication number	US-2025178866-A1
Application number	US-202418970079-A
Country	US
Kind code	A1
Filing date	Dec 5, 2024
Priority date	Dec 5, 2023
Publication date	Jun 5, 2025
Grant date	—

Abstract

An elevator system and a guiding device for use in an elevator system. The guide device for an elevator system includes: a bracket; a plurality of rollers mounted onto the bracket; at least one of the plurality of rollers is mounted onto the bracket through a damping device, the damping device includes: an oscillating rod, a first end of the oscillating rod is rotatably mounted onto the bracket, a second end of the oscillating rod is provided with a first notch, and the roller is mounted onto the oscillating rod; a guide pin, wherein the guide pin is mounted onto the bracket and passes through the first notch of the oscillating rod; and one or more friction members, mounted onto the oscillating rod and in frictional contact with the guide pin during the oscillation of the oscillating rod.

First claim

What is claimed is:

1 . A guide device for an elevator system, comprising:
a bracket; a plurality of rollers mounted onto the bracket; wherein, at least one of the plurality of rollers is mounted onto the bracket through a damping device, the damping device comprising: an oscillating rod, wherein a first end of the oscillating rod is rotatably mounted onto the bracket, a second end of the oscillating rod is provided with a first notch, and the roller is mounted onto the oscillating rod; a guide pin, wherein the guide pin is mounted onto the bracket and passes through the first notch of the oscillating rod; and one or more friction members, mounted onto the oscillating rod and in frictional contact with the guide pin during oscillation of the oscillating rod.

2 . The guide device according to claim 1 , wherein the guide pin comprises opposite surfaces parallel to each other, and the one or more friction members comprise two friction members that are in frictional contact with the opposite surfaces, respectively.

3 . The guide device according to claim 2 , wherein the oscillating rod has a first through-hole intersecting with the first notch, and the two friction members are mounted from opposite sides into the first through-hole.

4 . The guide device according to claim 3 , wherein each of the friction members comprises:
a friction member body with external threads, wherein the external threads of the friction member body engage with internal threads of the first through-hole, and the friction member body further comprises a torque receiving end; a friction end; and a spring member between the friction member body and the friction end.

5 . The guide device according to claim 4 , wherein an outer surface of the friction end is spherical or planar.

6 . The guide device according to claim 2 , wherein a friction material coating is coated on a contact area on the opposite surfaces of the guide pin in frictional contact with the friction member.

7 . The guide device according to claim 1 , wherein a groove is provided on the opposite surfaces of the guide pin, and the contact area where the friction member is in contact with the guide pin is located within the groove during the oscillation of the oscillating rod.

8 . The guide device according to claim 7 , wherein the groove is constructed as an arc that matches a trajectory of the friction member moving with the oscillating rod.

9 . The guide device according to claim 8 , wherein the groove in the shape of an arc has a varying depth, where in a circumferential direction, a depth in the middle of the groove in the shape of an arc is greater than a depth at both ends of the groove in the shape of an arc, and the depth of the groove in the shape of an arc gradually decreases from the middle to both ends.

10 . The guide device according to claim 1 , wherein the bracket comprises a base and one or more columns extending from the base, the first end of the oscillating rod is rotatably mounted onto the base, and the guide pin is connected to the column in a manner substantially parallel to the base.

11 . The guide device according to claim 10 , wherein the guide pin comprises a first end and a second end opposite to each other, and a guide pin body between the first end and the second end, where the first end of the guide pin is fixed to the column, and a spring is provided between the second end of the guide pin and the oscillating rod.

12 . The guide device according to claim 11 , wherein a cross section of the first notch is rectangular, a cross section of the guide pin body is rectangular, and the first end and the second end of the guide pin have external threads.

13 . The guide device according to claim 10 , wherein the guide device further comprises a limit pin connected to the column in parallel with the guide pin, where the limit pin passes through a second through-hole on the oscillating rod, and the limit pin comprises a stopper that limits a maximum extent of the oscillating rod oscillating away from the guide rail.

14 . The guide device according to claim 1 , wherein the plurality of rollers comprise a first roller and a second roller arranged side by side, and a third roller with a rotation plane perpendicular to those of the first roller and the second roller, where all of the first roller, the second roller, and the third roller are mounted onto the bracket through the damping device.

15 . An elevator system, comprising:
an elevator car; and the guide device according to claim 1 , connected to the elevator car for guiding the elevator car to move along the elevator guide rail.

Assignees

• Otis Elevator Co

Inventors

• Li Bichun
• Zou Kang
• Cui Hui
• Li Yang
• Xu Zhangming

Classifications

• F16F15/067

  using only wound springs · CPC title

• F16F15/022

  using dampers and springs in combination · CPC title

• B66B7/048 Primary

  including passive attenuation system for shocks, vibrations · CPC title

• B66B7/046 Primary

  Rollers · CPC title