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Elevator and means for forming a safety space

  • US 9,878,877 B2
  • Filed: 06/26/2015
  • Issued: 01/30/2018
  • Est. Priority Date: 01/07/2013
  • Status: Active Grant
First Claim
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1. An elevator, comprising:

  • an elevator car arranged to move reciprocally in an elevator hoistway, said elevator car being fitted on guide rails;

    a plurality of landing doors, each having a landing door lock openable with a service key; and

    a safety arrangement, said safety arrangement being arranged to form a safe space in the elevator hoistway below the elevator car and/or above the elevator car, to which access is enabled via at least one of the plurality of landing doors, and in which elevator the safe space has a minimum height,wherein the safety arrangement comprises a mechanical transmission member and a safety device,wherein the mechanical transmission member extends from the door lock of the at least one landing door to the safety device,wherein the safety device is mechanically actuated via the mechanical transmission member,wherein the safety device is a spring-loaded tripping device rigidly fixed in the elevator hoistway and comprises;

    a mounting base;

    a locking detent mounted on the mounting base and configured to be moved along a single axis via a detent spring pressing against the locking detent;

    a pin connected to the mounting base via a first hinge and connected to a transmission rod via a second hinge; and

    a stopper comprising a stopper spring;

    wherein the transmission rod is connected to the stopper via a third hinge,wherein the mechanical transmission member is connected to the safety device at the locking detent at one end thereof, andwherein the stopper rests against a surface of the locking detent in a refracted position when the door lock is closed, wherein the stopper spring is configured to bias the stopper against the locking detent.

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