Protective arrangement for an elevator

Patent metadata

Field	Value
Publication number	US-9701516-B2
Application number	US-201414247822-A
Country	US
Kind code	B2
Filing date	Apr 8, 2014
Priority date	Oct 21, 2011
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

An elevator having an elevator car configured to move in a hoistway, and floor landings, and a protective arrangement, which arrangement has a wall connected to the bottom of the car, which protective wall can be displaced between a vertical operating position and a retracted position folded out of the vertical operating position, and when in which operating position the wall forms a wall extending downwards from the bottom edge of the floor landing side of the elevator car, and in which elevator the protective arrangement has locking means for preventing the protective wall in the operating position from folding out. The locking means has one or more movable locking means, which is/are arranged to be moved between a locking and retracted position, when in which locking position the locking means prevents the wall in the operating position from folding out of the operating position towards the retracted position.

First claim

The invention claimed is:

1. An elevator, comprising:
an elevator car configured to move in an elevator hoistway;
floor landings; and
a protective arrangement comprising a protective wall connected to a bottom part of the elevator car,
wherein the protective wall can be displaced between a vertical operating position and a retracted position rotated from the vertical operating position,
wherein the protective wall forms a wall extending downwards from a bottom edge of a floor landing side of the elevator car in the vertical operating position,
wherein the protective arrangement further comprises a lock for preventing the protective wall in the vertical operating position from rotating out of the vertical operating position,
wherein the lock comprises at least one movable elongated locking member linearly movable in the direction of the elevator hoistway, which is arranged to be moved between a locking position and a retracted position,
wherein in the locking position, the lock prevents the protective wall in the vertical operating position from rotating out of the vertical operating position towards the retracted position, and
wherein in the retracted position, the lock allows rotation of the protective wall out of the vertical operating position into the retracted position.

2. The elevator according to claim 1 , wherein a force is arranged to be exerted on the protective wall in the retracted position, urging it towards the vertical operating position, which force is the gravity of the earth and/or the spring force of a spring,
wherein the protective arrangement further comprises holder comprising an actuator for holding the protective wall in the retracted position, and
wherein the holder can disengage from the protective wall to allow the protective wall to displace from the retracted position into the vertical operating position from the effect of the aforementioned force.

3. The elevator according to claim 2 , wherein the holder is arranged to release the protective wall if the elevator car stops between consecutive floor landings.

4. The elevator according to claim 1 , wherein the lock is arranged to move into the locking position if the protective wall moves from the retracted position into the vertical operating position.

5. The elevator according to claim 4 , wherein a force is arranged to be exerted on the lock in the retracted position, pushing it towards the locking position, which force is the gravity of the earth and/or a spring force of a spring.

6. The elevator according to claim 4 , wherein the moving of the lock into the locking position is prevented when the protective wall is in the retracted position.

7. The elevator according to claim 4 , wherein the moving of the protective wall from the retracted position into the vertical operating position is arranged to release the lock to move into the vertical locking position.

8. The elevator according to claim 1 , wherein a force is arranged to be exerted on the lock in the retracted position, urging it towards the locking position, which force is preferably the gravity of the earth and/or a spring force of a spring.

9. The elevator according to claim 8 , wherein the moving of the lock into the locking position is arranged to be prevented when the protective wall is in the retracted position.

10. The elevator according to claim 8 , wherein the moving of the protective wall from the retracted position into the vertical operating position is arranged to release the lock to move into the locking position.

11. The elevator according to claim 1 , wherein moving of the lock into the locking position is prevented when the protective wall is in the retracted position.

12. The elevator according to claim 1 , wherein the moving of the protective wall from the retracted position into the vertical operating position is arranged to release the lock to move into the locking position.

13. The elevator according to claim 1 , wherein the lock is arranged to move between a locking position and a retracted position with a vertical movement.

14. The elevator according to claim 1 , wherein the lock is arranged to move between a locking position and a retracted position with a linear movement.

15. The elevator according to claim 1 , wherein the lock is arranged to move between a locking position and a retracted position with a linear movement of the at least one movable elongated locking member.

16. The elevator according to claim 1 , wherein the lock, when in the retracted position, is at least partly beside a door aperture of the elevator car.

17. The elevator according to claim 1 , wherein the lock is in a vertical position toward the top of the elevator hoistway when it is in the retracted position and/or in the locking position.

18. The elevator according to claim 1 , wherein the lock is supported on the elevator car to move between a locking position and a retracted position in a supported manner along a predefined trajectory, controlled by guide rails.

19. The elevator according to claim 1 , wherein the protective wall comprises an upper wall part and a lower wall part, which are connected to each other telescopically, and
wherein a detent is connected to the lower wall part, which detent is arranged to force the lock out of the locking position when the lower part is raised as the protective wall is moved from the vertical operating position to the retracted position.

20. The elevator according to claim 1 , wherein the protective wall is arranged to be manually returned from the vertical operating position into the retracted position.

Assignees

• Kone Corp

Inventors

• Karimpanackal Natarajan Nithil
• Mäntynen Samuli

Classifications

• B66B13/285 Primary

  Toe guards or apron devices · CPC title

• B66B13/28

  between car or cage and wells · CPC title