Elevator car frame

Patent metadata

Field	Value
Publication number	US-11091352-B2
Application number	US-201916392719-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	Apr 27, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

Elevator car frames are provided. The elevator car frames include a first upright, a second upright, a first support element connected to the first upright, a second support element connected to the second upright, and a retractable crosshead having a first portion and a second portion extending between the first and second support elements, wherein the retractable crosshead is operable between a first state wherein the first portion and the second portion are connected and a second state wherein the first portion and the second portion are separated.

First claim

What is claimed is:

1. An elevator car frame comprising:
a first upright;
a second upright;
a first support element connected to the first upright;
a second support element connected to the second upright; and
a retractable crosshead having a first portion and a second portion extending between the first and second support elements,
wherein the first portion and the second portion of the retractable crosshead are releasably connected to each other at one end thereof and each of the first portion and the second portion are connected to the respective first support element and the second support element at an opposed end thereof, and
wherein the retractable crosshead is operable between a first state wherein the first portion and the second portion are connected and a second state wherein the first portion and the second portion are separated to form an opening that provides access to an exterior of an elevator car having the elevator car frame.

2. The elevator car frame of claim 1 , wherein the first portion is movably connected to the first support element.

3. The elevator car frame of claim 2 , wherein the first portion is pivotably connected to the first support element.

4. The elevator car frame of claim 1 , wherein the second portion is movably connected to the second support element.

5. The elevator car frame of claim 4 , wherein the second portion is pivotably connected to the second support element.

6. The elevator car frame of claim 1 , further comprising a first locking element releasably securing the first portion to the first support element when in the first state.

7. The elevator car frame of claim 1 , further comprising a second locking element releasably securing the second portion to the second support element when in the first state.

8. The elevator car frame of claim 1 , further comprising a third locking element releasably securing the first portion to the second portion when in the first state.

9. The elevator car frame of claim 1 , further comprising a safety device arranged to be connected when in the first state and disconnected when in the second state.

10. The elevator car frame of claim 9 , wherein the safety device is part of an elevator safety chain.

11. The elevator car frame of claim 9 , wherein the safety device comprises a first safety element on the first portion and a second safety element on the second portion, wherein when the first safety element is removed from contact with the second safety element, the safety device is disconnected.

12. The elevator car frame of claim 1 , wherein the first support element is integrally formed with the first upright and the second support element is integrally formed with the second upright.

13. An elevator car comprising:
an elevator car frame having:
a first upright;
a second upright;
a first support element connected to the first upright;
a second support element connected to the second upright; and
a retractable crosshead having a first portion and a second portion extending between the first and second support elements,
wherein the first portion and the second portion of the retractable crosshead are releasably connected to each other at one end thereof and each of the first portion and the second portion are connected to the respective first support element and the second support element at an opposed end thereof, and
wherein the retractable crosshead is operable between a first state wherein the first portion and the second portion are connected and a second state wherein the first portion and the second portion are separated to form an opening that provides access to an exterior of an elevator car having the elevator car frame.

14. The elevator car of claim 13 , wherein the elevator car includes a ceiling panel openable to provide access to the retractable crosshead.

15. The elevator car of claim 14 , wherein the elevator car includes a maintenance platform that is operable to enable a user to access the retractable crosshead when the ceiling panel is open.

16. The elevator car of claim 13 , wherein the first portion is movably connected to the first support element.

17. The elevator car of claim 13 , wherein the second portion is movably connected to the second support element.

18. The elevator car of claim 13 , further comprising a first locking element releasably securing the first portion to the first support element when in the first state.

19. The elevator car of claim 13 , further comprising a second locking element releasably securing the second portion to the second support element when in the first state.

20. The elevator car of claim 13 , further comprising a third locking element releasably securing the first portion to the second portion when in the first state.

Assignees

• Otis Elevator Co

Inventors

• Fauconnet Aurelien
• Beauchaud Frederic

Classifications

• B66B11/0206 Primary

  Car frames · CPC title

• B66B11/0226

  Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation · CPC title

• B66B5/0087

  Devices facilitating maintenance, repair or inspection tasks (devices incorporated in the buffer B66B5/288; railings on top of the car B66B11/0226) · CPC title

• B66B11/0246 Primary

  Maintenance features (devices facilitating maintenance in general B66B5/0087) · CPC title

• B66B5/005

  Safety of maintenance personnel · CPC title