Elevator system suspension member termination with containment

Patent metadata

Field	Value
Publication number	US-11078046-B2
Application number	US-201715842192-A
Country	US
Kind code	B2
Filing date	Dec 14, 2017
Priority date	Dec 14, 2016
Publication date	Aug 3, 2021
Grant date	Aug 3, 2021

Abstract

A termination device for a suspension member of an elevator system includes a housing and a wedge located in the housing. The wedge extends across a width of the suspension member and at least partially across a thickness of the suspension member. The wedge is interactive with the suspension member to apply a clamping force to the suspension member in response to an axial load acting on the suspension member. The wedge includes a wedge lip configured to contain the suspension member within a lateral extent of the wedge.

First claim

What is claimed is:

1. A termination device for a suspension member of an elevator system comprising:
a housing; and
two opposing wedges disposed in the housing and configured such that the suspension member is receivable therebetween, each wedge extending across a width of the suspension member and at least partially across a thickness of the suspension member, each wedge interactive with the suspension member to apply a clamping force to the suspension member in response to an axial load acting on the suspension member, each wedge including a wedge lip disposed at a lateral end of each wedge configured to contain the suspension member within a lateral extent of each wedge by at least partially overlapping a lateral end of the suspension member;
wherein a first wedge lip of a first wedge of the two opposing wedges is configured to overlap a second wedge lip of a second wedge of the two opposing wedges.

2. The termination device of claim 1 , wherein each wedge is formed from a first material and at least one of the first wedge lip and the second wedge lip is formed from a second material softer than the first material.

3. The termination device of claim 1 , wherein the wedge lip is compressible.

4. A termination assembly of a belt for an elevator system, comprising:
the belt including:
a plurality of tension members extending along a length of the belt; and
a jacket at least partially enclosing the plurality of tension members;

a termination device including:
a housing; and
two opposing wedges disposed in the housing such that the belt is disposed between the two opposing wedges, each wedge extending across a lateral width of the belt and at least partially across a thickness of the belt, each wedge interactive with the belt to apply a clamping force to the belt in response to an axial load acting on the belt, each wedge including a wedge lip disposed at a lateral end of each wedge configured to contain the belt within a lateral extent of each wedge by at least partially overlapping a lateral end of the belt;
wherein a first wedge lip of a first wedge of the two opposing wedges is configured to overlap a second wedge lip of a second wedge of the two opposing wedges.

5. The termination assembly of claim 4 , wherein at least one of the first wedge lip and the second wedge lip is compressible.

6. The termination assembly of claim 4 , wherein the plurality of tension members are formed from a plurality of fibers bonded to a polymer matrix.

7. The termination assembly of claim 4 , wherein the jacket is formed from an elastomeric material.

8. An elevator system comprising:
a hoistway;
an elevator car disposed in the hoistway;
a belt operably connected to the elevator car to suspend and/or drive the elevator car along the hoistway; and
a termination device disposed in the hoistway and operably connected to a belt end of the belt, the termination device including:
a housing; and
two opposing wedges disposed in the housing such that the belt is disposed between the two opposing wedges, each wedge extending across a lateral width of the belt and at least partially across a thickness of the belt, each wedge interactive with the belt to apply a clamping force to the belt in response to an axial load acting on the belt, each wedge including a wedge lip disposed at a lateral end of each wedge configured to contain the belt within a lateral extent of each wedge by at least partially overlapping a lateral end of the belt;
wherein a first wedge lip of a first wedge of the two opposing wedges is configured to overlap a second wedge lip of a second wedge of the two opposing wedges.

9. The elevator system of claim 8 , wherein the termination device is located at the elevator car or a counterweight of the elevator system.

10. The elevator system of claim 8 , wherein at least one of the first wedge lip and the second wedge lip is compressible.

Assignees

• Otis Elevator Co

Inventors

• Schmidt Walter Thomas
• Mosher Daniel A
• Rampone Joseph C

Classifications

• B66B7/085 Primary

  Belt termination devices · CPC title

• F16G11/044

  friction clamps deforming the cable, wire, rope or cord · CPC title

• B66B7/062 Primary

  Belts · CPC title