Elevator installation with a buffer for creating a zone of protection in an elevator installation and a method of creating a zone of protection
AssigneeInventio AG
InventorsMarcel Huber, Johannes Kocher
Life of this patent
Estimating the term…
Abstract
A buffer creates at least one zone of protection in an elevator installation including an elevator car and a counterweight movable along respective paths in an elevator shaft. The buffer has a movable portion movable into the path of the elevator car and/or into the path of the counterweight in such a manner that the elevator car or the counterweight can be brought into mechanical contact with the movable portion and each of the elevator car and the counterweight is supported at a predetermined height above a floor of the elevator shaft so that a zone of protection is available below or above the elevator car.
Claims19
A buffer for an elevator installation for creating at least one zone of protection, wherein the elevator installation includes an elevator car and a counterweight movable along respective paths in an elevator shaft, the buffer comprising:
- a base element adapted to be mounted in the elevator shaft;
- and
- a movable means attached to said base element wherein when said base element is mounted in the elevator shaft, said movable means is movable to a use setting in the path of the elevator car for creating a first zone of protection in a lower end of the elevator shaft and the path of the counterweight for creating a second zone of protection in an upper end of the elevator shaft.
A method of creating a zone of protection in an elevator installation with a buffer mounted in an elevator shaft and an elevator car connected with a counterweight for movement along respective paths in the elevator shaft, the method comprising the steps of:
- a) providing the buffer with a movable means;
- b) moving the movable means into the path of the elevator car when there is a need for a zone of protection below the elevator car, wherein the zone of protection is created by a mechanical contact of the movable means with the elevator car and ensures a maintenance person of a first predetermined spacing between the elevator car and a floor of the elevator shaft;
- and
- c) moving the movable means into the path of the counterweight when there is a need for a zone of protection above the elevator car, wherein the zone of protection is created by a mechanical contact of the movable means with the counterweight and ensures a maintenance person of a second predetermined spacing between the elevator car and an upper end of the elevator shaft.
Dependencies are inferred from the claim text.