Roof railing for an elevator car adapted to be collapsed with a handle actuating all sides at the same time

Abstract

The present invention relates to an elevator cage top guardrail which is provided with a folding side edge (13) that is hinged to the supporting framework (5) on the cage top (3), and the guardrail includes the following components: two side edges (13) which can be inward folded to at least two parts as the accordion, and is perpendicular to the flat base door opening (9) of the elevator shaft and is hinged to the base part of the supporting framework (5), an upper back side lever (17) which is connected with the back upper end of each folding side edge (13), the length of which is approximately same to the depth of the elevator cage and is hinged or next to the actuating handle (19) at the back middle part of the supporting framework (5), the upper back side lever is perpendicular to the flat base door opening (9) of the shaft, wherein the actuating handle (19) is connected with at least a lever which is hinged in the middle plane and the upper back side lever (17), and comprises a side lever of the bottom ball joint which is connected at the back side of each folding side edge (13), the device is characterized in that the actuating handle (19) can be lifted from a lower and basic horizontal guardrail folding position through the flat base door opening (9) to a locked basic perpendicular top position, at the same time drag the two folding side edges (13) and cause the folding side edges perpendicularly erected, and forms an upper back side lever (17) which actualizes locking and a back connecting lever (35, 39) on the side edge (13) to form the third side edge of the guardrail, and on the contrary, the handle can be taken from the upper position to the lower position, wherein the movable actuating handle (19) leads to the simultaneous folding of the tow folding side edges (13) of the guardrail and thereby shrinking the guardrail itself at the cage top (3) to form a small height.

Description

technical field [0001] The present invention relates to a top handrail of an elevator car which can be erected and folded by a simultaneous actuation of all side handles. Background technique [0002] Prior art elevator car top handrails are usually erected and folded side by side by an operator standing on top of the car, whereby the operator is not protected from falling from the car top when he folds the sides of the handrail . [0003] Furthermore, in narrow cars with a width of less than 900 mm, the folded sides of the handrails, which have a set height less than or equal to the width of the car, do not provide sufficient height when erected to prevent falls unless they are in the car. Keeping the slope on top takes up a lot of space, which is not very or fully compatible with all modern elevators that have less space at the top of the shaft. [0004] Also, when the operator is doing less work on top of the car, if he has access to the top of the car, he may try not t...

AI Technical Summary

Problems solved by technology

[0002] Prior art elevator car top handrails are usually erected and folded side by side by an operator standing on top of the car, whereby the operator is not protected from falling from the car top when he folds the sides of the handrail

[0003] Furthermore, in narrow cars with a width of less than 900 mm, the folded sides of the handrails, which have a set height less than or equal to the width of the car, do not provide sufficient height when erected to prevent falls unless they are in the car. Keeping the slope on top takes up a lot of space, which is not very or fully compatible with all modern elevators that have less space at the top of the shaft

[0004] Also, when the operator is doing less work on top of the car, if he can get close to the top of the car, he may try not to stand on the handrail, which is a dangerous situation

Images