Fastening arrangement for elevator guide rails

Patent metadata

Field	Value
Publication number	US-11498807-B2
Application number	US-202117165271-A
Country	US
Kind code	B2
Filing date	Feb 2, 2021
Priority date	Feb 3, 2020
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

An arrangement includes two bracket parts, each bracket part includes a vertical branch and a horizontal branch attached by two fastening points. Each fastening point includes a longitudinal opening in each horizontal branch and a first fastening member passing vertically through the two longitudinal openings into a nest supported on a horizontal branch. A second fastening member extends horizontally into the nest and is operatively connected within the nest to the first fastening member via a power transmission. Rotation of the second fastening member generates a pressure joint between the two horizontal branches in the fastening point.

First claim

The invention claimed is:

1. A fastening arrangement for elevator guide rails, said fastening arrangement comprising:
two bracket parts with a width direction and a perpendicular depth direction, each bracket parts comprising a vertical branch and a horizontal branch; and
two fastening points for mutual attachment of the horizontal branches of the two bracket parts, each fastening point comprising a first longitudinal opening extending in the width direction in a first horizontal branch, a second longitudinal opening extending in the depth direction in a second horizontal branch, and a first fastening member passing vertically through the two longitudinal openings,
wherein a structure forming a nest is supported on the first horizontal branch so that the first fastening member extends vertically into the nest and a second fastening member extends horizontally into the nest, the first fastening member and the second fastening member being operatively connected to each other via a power transmission within the nest, whereby rotation of the second fastening member around a longitudinal centre axis of the second fastening member is transferred by the power transmission to a vertical linear movement of the first fastening element generating a pressure joint between the two horizontal branches of the two bracket parts in the fastening points.

2. The fastening arrangement as claimed in claim 1 , wherein the structure forming the nest comprises a front wall extending vertically outwards from the first horizontal branch and an outer wall extending horizontally from the front wall, the second fastening member passing horizontally into the nest through a third longitudinal opening extending in the width direction in the front wall of the nest, the second fastening member being rotatably and movably supported in the front wall of the nest.

3. The fastening arrangement as claimed in claim 2 , wherein an outer end of the first fastening member is movably supported on the outer wall of the nest.

4. The fastening arrangement as claimed in claim 3 , wherein the power transmission is formed of a tightening element being operatively connected within the nest to the first fastening member and to the second fastening member.

5. The fastening arrangement as claimed in claim 3 , wherein the outer wall in the nest comprises a fourth longitudinal slit extending in the width direction, the outer end of the first fastening member being supported in the fourth longitudinal slit.

6. The fastening arrangement as claimed in claim 2 , wherein the outer wall in the nest comprises a fourth longitudinal slit extending in the width direction, an outer end of the first fastening member being supported in the fourth longitudinal slit.

7. The fastening arrangement as claimed in claim 6 , wherein the fourth longitudinal slit in the outer wall of the nest is formed of a fourth longitudinal opening.

8. The fastening arrangement as claimed in claim 6 , wherein a tightening element is formed of a wedge being arranged between the first horizontal branch and the outer end of the first fastening member, whereby movement of the wedge with the second fastening member in the depth direction causes the horizontal branches of the two bracket parts to be pressed together in the pressure joint between the first fastening member and the wedge.

9. The fastening arrangement as claimed in claim 2 , wherein the power transmission is formed of a tightening element being operatively connected within the nest to the first fastening member and to the second fastening member.

10. The fastening arrangement as claimed in claim 1 , wherein the power transmission is formed of a tightening element being operatively connected within the nest to the first fastening member and to the second fastening member.

11. The fastening arrangement as claimed in claim 10 , wherein the tightening element is formed of a wedge being arranged between the first horizontal branch and an outer end of the first fastening member, whereby movement of the wedge with the second fastening member in the depth direction causes the horizontal branches of the two bracket parts to be pressed together in the pressure joint between the first fastening member and the wedge.

12. The fastening arrangement as claimed in claim 11 , wherein the wedge comprises a first edge seating against the first horizontal branch and a second opposite inclined edge seating against the outer end of the first fastening member.

13. The fastening arrangement as claimed in claim 11 , wherein the first fastening member comprises a head and a shank, the shank being provided with a longitudinal wedge opening for receiving the wedge, the longitudinal wedge opening having a first edge at a distance from an outer wall of the nest and a second opposite edge within the longitudinal openings in the horizontal branches of the two bracket parts, wherein a second edge of the wedge seats against the first edge of the wedge opening.

14. The fastening arrangement as claimed in claim 11 , wherein the second fastening member is supported on a front wall of the nest with washers being fixedly attached to a shank of the second fastening member on opposite sides of the front wall of the nest, at least an outer end of the shank of the second fastening member being provided with an outer threading.

15. The fastening arrangement as claimed in claim 14 , wherein the tightening element comprises a connection element for connecting the tightening element to the second fastening member, the connection element comprising a hole with an inner threading receiving the outer threading of the shank of the second fastening member, whereby rotation of the second fastening member moves the tightening element in the depth direction.

16. The fastening arrangement as claimed in claim 10 , wherein the outer wall in the nest comprises a fourth longitudinal slit extending in the width direction, an outer end of the first fastening member being supported in the fourth longitudinal slit.

17. The fastening arrangement as claimed in claim 1 , wherein each bracket part is made from a single blank of sheet material by bending.

18. The fastening arrangement as claimed in claim 1 , wherein the vertical branches of the two bracket parts extend in opposite directions.

19. The fastening arrangement as claimed in claim 1 , wherein the horizontal branch of the first bracket part is positioned below the horizontal branch of the second bracket part.

20. The fastening arrangement as claimed in claim 1 , wherein the nest is formed as an integral part of one of the horizontal branches of the two bracket parts.

Assignees

• Kone Corp

Inventors

• Haag Mikael
• Mäkinen Harri

Classifications

• B66B7/024 Primary

  Lateral supports · CPC title

• B66B7/023

  Mounting means therefor · CPC title