Chr. Mayr Gmbh+co. Kg

Martin Hecht

Christoph Dropmann

Karl Unsin

Michael Haerter

Martin Reichle

Alexander Müller

Alexander Wiegert

Andreas Hahn

Berthold Roessler

An externally powered car brake for a lift system and, for the activation thereof, a circuit arrangement with integrated stepped control of the deceleration of the car during emergency braking are proposed. According to the invention, a braking system having the full braking force or a braking force adapted to the operating parameters and a subsequent control of the deceleration on the basis of an acceleration measurement with stepped reduction of the braking force are proposed. The control is designed such that the deceleration of the car is always within predefined threshold values, which applies independently of the direction of travel of the lift car, independently of the drive system of the lift used, and independently of the car loading and of the friction coefficient between the brake lining and the guide rail.

Brake, circuit arrangement and method for activating a brake

A compact control device for failsafely controlling an electrical actuator capable of moving a movable machine part into a defined end position, has an input connection for receiving an external control signal representing a desired position of the machine part. The compact control device further has an input part for detecting a position signal, which signals an actual position of the machine part at the defined end position. A power section comprises a power switching element for switching on and failsafely switching off a control current for the actuator that is supplied to the electrical actuator via a first output connection. The compact control device has a second output connection for providing an external status signal and an evaluation unit which actuates the power switching element depending on the external control signal and generates the external status signal at the second output connection depending on the position signal.

Compact control device for failsafely controlling an electrical actuator

The invention relates to a linear brake (LBR) for attachment on a slide that can be moved along a guide rail (F), having a brake housing (), which at least partially surrounds the guide rail (F), a force store arranged on or in the brake housing () and a brake piston (), which is loaded by the force store, surrounds the guide rail (F) in a fork-like manner and is moved by the force store against the guide rail transversely to the movement direction between the slide and the guide rail (F). The brake piston presses the two clamp jaws (), which are connected with a U-shaped transfer plate (), against the guide rail (F) by means of piston bevels () and wedge bevels (), which are arranged on both sides of the guide rail (F) and are opposite each other. The brake piston () is configured as a cylindrical annular piston, which is loaded on one end face by the force store () arranged centrally in the annular piston and has on the other end face the piston ends () with the bevel faces (). A piston space () is formed in an annular manner and on the radial outer side of the cylindrical annular piston () in the region of the join () between the annular piston and the housing body (), wherein a piston ring () connected radially on the outside to the annular piston delimits the piston space () at the end face.

Linear brake operated by means of external energy

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Kaufbeuren, Germany

Martin Hecht