Rail foot holder for fastening a rail of an elevator system

Patent metadata

Field	Value
Publication number	US-10906779-B2
Application number	US-201716466654-A
Country	US
Kind code	B2
Filing date	Dec 7, 2017
Priority date	Dec 7, 2016
Publication date	Feb 2, 2021
Grant date	Feb 2, 2021

Abstract

A rail foot holder for fastening a rail in an elevator shaft includes a contact body defining a contact plane and at least one holding device. A first side part of a rail foot arranged between a holding head of the holding device and the contact plane to fasten the rail. A holding dimension between the holding head and the contact plane can be changed to compensate tolerances of the first side part. The holding head can be rotated about an axis of rotation into a fastening position to reduce the holding dimension. A side of the holding head facing the contact plane has a slope against the direction of rotation in at least one fastening region extending around the axis of rotation in the direction of rotation, in which fastening region at least indirect contact between the holding head and the first side part is enabled.

First claim

The invention claimed is:

1. A rail foot holder for fastening a rail of an elevator system in an elevator shaft comprising:
a contact body adapted to be arranged in the elevator shaft;
at least one holding device arranged on the contact body;
wherein the contact body defines a contact plane for a rail foot of the rail;
wherein the at least one holding device has a holding head;
wherein a first side part of the rail foot can be arranged between the holding head and the contact plane;
wherein during a fastening of the rail in the elevator shaft, a holding dimension between the holding head and the contact plane can be altered to compensate for tolerances on the first side part of the rail foot;
wherein for reducing the holding dimension, the holding head is rotatable in a direction of rotation around an axis of rotation of the at least one holding device into a fastening position; and
wherein a side of the holding head, facing towards the contact plane in at least one fastening region extending in the direction of rotation around the axis of rotation, at which an at least indirect contact is enabled between the holding head and the first side part of the rail foot, is formed with a sloping rise counter to the direction of rotation.

2. The rail foot holder according to claim 1 wherein the holding head is rotatable around the axis of rotation in another direction of rotation into the fastening position, the another direction of rotation being counter to the direction of rotation, and wherein the side of the holding head facing towards the contact plane in another fastening region extending around the axis of rotation in the other direction of rotation, at which an at least indirect contact is enabled between the holding head and the first side part of the rail foot, is formed with a sloping rise counter to the other direction of rotation.

3. The rail foot holder according to claim 2 wherein the sloping rises each extend continuously counter to the respective direction of rotation.

4. The rail foot head according to claim 1 wherein the at least one holding device is adjustable relative to the contact body such that a distance between the axis of rotation of the at least one holding device and another holding device, between which holding devices the rail foot can be fastened, can be altered.

5. The rail foot holder according to claim 4 wherein the contact body has an elongated hole in which a bolt of the at least one holding device is guided.

6. The rail foot holder according to claim 4 wherein the another holding device is arranged on the contact body and is rotatable around an axis of rotation of the another holding device.

7. The rail foot holder according to claim 4 wherein the another holding device has a holding head,
wherein a second side part of the rail foot can be arranged between the holding head of the another holding device and the contact plane,
wherein during the fastening of the rail in the elevator shaft, another holding dimension between the holding head of the another holding device and the contact plane can be altered to compensate for tolerances on the second side part of the rail foot,
wherein for reducing the another holding dimension, the holding head of the another holding device is rotatable in a direction of rotation around an axis of rotation of the another holding device into a fastening position, and
wherein a side of the holding head of the another holding device, facing towards the contact plane in at least one fastening region extending in the direction of rotation around the axis of rotation of the another holding device, at which an at least indirect contact is enabled between the holding head of the another holding device and the second side part of the rail foot, is formed with a sloping rise counter to the direction of rotation.

8. The rail foot holder according to claim 1 wherein the holding head has an end face that faces towards the contact body, and wherein the at least one holding device includes a fastening means for fixing the holding head relative to the contact body by forcing the end face against the contact body.

9. The rail foot holder according to claim 8 wherein the end face of the holding head is at least one of formed as a structured end face and has grooves running radially with respect to the axis of rotation of the at least one holding device.

10. The rail foot holder according to claim 1 including a fastening body adapted to be fastened in the elevator shaft and wherein the contact body is adapted to be connected to the fastening body in each a plurality of selectable connecting positions.

11. The rail foot holder according to claim 1 wherein the holding head includes at least one sliding surface for contacting the rail foot.

12. The rail foot holder according to claim 11 wherein when the rail is fastened by the rail foot holder, contact is established between the first side part of the rail foot and the holding head on the at least one sliding surface for guiding the rail foot.

13. The rail foot holder according to claim 12 wherein the at least one sliding surface is formed on a reduced-friction coating of the holding head, or the at least one sliding surface is formed on a sliding ring mounted on the holding head.

14. A method for fastening a rail of an elevator system in an elevator shaft comprising the steps of:
providing at least one of the rail foot holder according to claim 1 ;
arranging the contact body of the at least one rail foot holder in the elevator shaft;
arranging a first side part of a rail foot of the rail between the holding head of the at least one holding device and the contact plane defined by the contact body; and
rotating the holding head around the axis of rotation of the at least one holding device to reduce the holding dimension between the holding head and the contact plane.

15. The method according to claim 14 including to reduce the holding dimension rotating the holding head around the axis of rotation until the first side part of the rail foot is held free of play and free of stress between the holding head and the contact plane.

Assignees

• Inventio Ag

Inventors

• Simonatto Marques Robson

Classifications

• B66B7/024 Primary

  Lateral supports · CPC title

• B66B19/002

  installing or exchanging guide rails (details of rails B66B7/02) · CPC title