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US 5,035,300 AGranted
Support beam for elevator sheaves
AssigneeOtis Elevator Company
InventorsJean-Claude Chapelain, Daniel Beaulieu
Life of this patent
Estimating the term…
Abstract
A support beam for elevator sheaves is disclosed. The support beam includes telescopic arms which are retracted for positioning the beam in the elevator shaft and, when positioned, are extended into recesses defined by the shaft walls to mount the beam in the desired position.
Claims8
A support beam for elevator sheaves to be mounted in a hoistway of a predetermined width having recesses defined by the hoistway walls which comprises:
- a load carrying beam having at least one telescopic arm (3) mounted at an end of the beam, said arm having a first retracted position when the length of the beam is less than the predetermined hoistway width for facilitating positioning of the beam in the shaft and a second extended position in which the arm is extended to engage a corresponding hoistway recess (18) provided for receiving the arm and the length of the beam is greater than the predetermined hoistway width.
A method of installing a support beam in an elevator shaft having defined recesses in the shaft wall which comprises the steps of
- a) raising the support beam into position adjacent the recesses defined by the shaft wall;
- b) extending a telescopic arm from one end of the support beam into one recess;
- c) extending a telescopic arm from the other end of the support beam into another recess;
- and
- d) lowering the support beam into position with the telescopic arms engaging the shaft walls defining the recesses thereby supporting the beam in the desired position.
2 more elements
Dependencies are inferred from the claim text.