Elevator installation deflecting unit

Patent metadata

Field	Value
Publication number	US-10046949-B2
Application number	US-201314407135-A
Country	US
Kind code	B2
Filing date	Jun 5, 2013
Priority date	Jun 12, 2012
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A deflection unit for guiding and deflecting the support apparatus of an elevator system includes a deflection roller and an axle which is mounted on a carrier and on which the deflection roller is mounted and is freely rotatable. The axle has an axle head that axially secures the axle on one end. For torsion-free mounting of the axle, a securing member is bolted onto the carrier and supported on an anti-rotation safeguard section arranged on the axle head. A horseshoe-shaped retaining part as a retaining means for axially securing the axle on the carrier is mounted on the axle on the end opposite from the axle head. An annular securing member, which is connected by bolts to the retaining part, is used for securing the retaining part.

First claim

The invention claimed is:

1. An elevator installation having a car, a counterweight and a support apparatus supporting the car and the counterweight, wherein at least one of the car and the counterweight is connected with the support apparatus by at least one deflecting unit, the at least one deflecting unit comprising:
a deflecting roller;
an axle fastened to a support and on which the deflecting roller is mounted to be freely rotatable, the axle being of mushroom-shaped form having an axle shank with an axle head at one end forming an abutment, the axle head having a radius greater than a radius of a remainder of the axle, the support having two mutually opposite walls, each wall provided with a respective bearing receptacle through which the axle is guided, the axle head forming a shoulder-like abutment with one of the walls;
a retaining part on an end of the axle opposite the axle head, whereby the support is received between the axle head and the retaining part, and the axle head and the retaining part allow rotation of the axle with respect to the support;
wherein the axle head is, for rotationally secure mounting of the axle, fixed in a first life cycle by a securing element fastened to the support to be secure against rotation in the support, and the securing element is releasably fastened to the support by a frangible element.

2. The elevator installation according to claim 1 wherein the at least one deflecting unit is configured so that if a specific torque between the deflecting roller and the axle is exceeded the securing element releases the axle head and the axle is, in a second life cycle, rotatable in the support.

3. The elevator installation according to claim 1 wherein the axle head has a rotational securing section formed as a planar surface and which is supported on the securing element fastened to the support.

4. The elevator installation according to claim 3 wherein the securing element is formed as a plate fastened to the support by a screw that is the frangible element.

5. The elevator installation according to claim 3 wherein the securing element is fastened to the support by a screw aligned axially parallel to the axle and wherein the screw and the axle lie in a plane normal to the planar surface of the rotational securing section.

6. The elevator installation according to claim 1 wherein the retaining part is surrounding the axle.

7. The elevator installation according to claim 6 wherein the retaining part is formed as horseshoe-shaped or annular.

8. The elevator installation according to claim 6 wherein for rotationally secure retention of the retaining part at the axle the retaining part is horseshoe-shaped and has planar flanks, and the axle has coupling sections formed complementary with the flanks.

9. The elevator installation according to claim 6 wherein the axle has a groove for receiving the retaining part and the retaining part is horseshoe-shaped.

10. The elevator installation according to claim 1 including a securing part surrounding the axle in radial direction and connected with the retaining part.

11. The elevator installation according to claim 10 wherein the securing part is connected with the retaining part by screws.

12. The elevator installation according to claim 10 wherein the securing part is annular.

13. The elevator installation according to claim 1 wherein the axle and the axle head are of monolithic construction.

14. An elevator installation having a car, a counterweight and a support apparatus supporting the car and the counterweight, wherein at least one of the car and the counterweight is connected with the support apparatus by at least one deflecting unit, the at least one deflecting unit comprising:
a deflecting roller for guiding and deflecting the support apparatus;
a support;
an axle fastened to the support and on which the deflecting roller is mounted to be freely rotatable, the axle being of mushroom-shaped form having an axle shank with an axle head at one end forming an abutment, the axle head having a radius greater than a radius of a remainder of the axle, the support having two mutually opposite walls, each wall provided with a respective bearing receptacle through which the axle is guided, the axle head forming a shoulder-like abutment with one of the walls;
a retaining part on an end of the axle opposite the axle head, whereby the support is received between the axle head and the retaining part, and the axle head and the retaining part allow rotation of the axle with respect to the support; and
a securing element fastened to the support and securing the axle head against rotation in the support in a first life cycle of the at least one deflecting unit, and upon a specific torque existing between the deflecting roller and the axle being exceeded the securing element releases the axle head and the axle is, in a second life cycle, rotatable in the support, wherein the securing element is releasably fastened to the support by a frangible element.

15. The elevator installation according to claim 14 wherein the axle head has a rotational securing section formed as a planar surface and which is supported on the securing element fastened to the support.

16. The elevator installation according to claim 15 wherein the securing element is formed as a plate fastened to the support by a screw that is frangible.

17. The elevator installation according to claim 15 wherein the securing element is fastened to the support by a screw aligned axially parallel to the axle and wherein the screw and the axle lie in a plane normal to a planar surface of the rotational securing section.

18. The elevator installation according to claim 14 wherein for rotationally secure retention of the retaining part at the axle the retaining part is horseshoe-shaped and has planar flanks, and the axle has coupling sections formed complementary with the flanks, and including an annular securing part surrounding the axle in radial direction and connected with the retaining part.

19. The elevator installation according to claim 14 wherein the axle and the axle head are of monolithic construction.

Assignees

• Inventio Ag

Inventors

• Moser Christof
• Latorre Marcuz Carlos
• Silberhorn Gert
• Bian Steven
• Pringle Wayne
• Kennedy Greg
• Guslandi Sergio
• Schwarer Peter

Classifications

• B66B15/02 Primary

  Rope or cable carriers · CPC title