Inventio Ag

Hans G Blochle

Ernst Ach

Adrian Steiner

Daniel Meierhans

Julian Stahli

A method and device for safety braking an elevator having an upright guide rail wherein the device includes a housing having braking elements on both sides of and being movable along the guide rail, a safety restraint on both sides between the housing and the braking elements, and a clampable and lockable actuating device that unlocks and unclamps in response to a triggering event and brings the braking elements into braking engagement with the guide rail. The actuating device, when unclamped, develops a feed force and movement transverse to the guide rail longitudinal axis engaging the braking elements with the guide rail from a laterally distanced initial position, wherein the braking elements are entrained by frictional contact on the guide rail and enter the safety restraint, and wherein the actuating device is moved back into the initial position, clamped and locked by the braking elements located in the safety restraint.

Safety brake device and safety brake method

In an elevator element for driving or reversing an elevator suspension device in an elevator system, that interacts with an elevator suspension device, the arithmetic mean of the roughness value of the contact surface measured in the circumferential direction of the elevator element, and the mean roughness value of the contact surface measured in the axial direction of the elevator element, are different. The arithmetic mean roughness value of the contact surface measured in the circumferential direction of the elevator element is less than 1 micrometer.

Elevator element for driving or reversing an elevator suspension means in an elevator system

Cable-clamping device for a synthetic fiber cable. A cable-clamping device for highly loaded synthetic fiber cables for elevator installations, wherein the cables can tolerate only small lateral pressures, the device including at least one retaining drum firmly connected with the elevator car and the elevator counterweight, with the retaining drum having several adjacent cable grooves, whose groove courses end or run out adjacently to the other for the running-off of the cables, with the cable grooves becoming progressively narrower in their cross-section starting at the entry of the loaded cable, with up to four and more retaining drums being arranged, one behind and beside the other, in this manner, wherein the run-off regions of the cable grooves point towards one another in order to avoid a fanning-out of the cables in front of the drive pulley.

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Stans, Switzerland

Hans G Blochle