Mannesmann Aktiengesellschaft

Demag Cranes & Components Gmbh

Demag Cranes & Components Gmhb

Ralf Eising

Udo Gersemsky

Oliver Moll

Thilo Walloschek

Giuliano Persico

Uwe Lichtenvort

Rüdiger Ostholt

Erik Appel

Alfred Fanger

Holger Freitag

Heinz Flaig

Anton Münzebrock

Burkhard Hasenack

J&uuml;rgen Heun

Jürgen Heun

Torsten Sattler

Hansjürgen Linde

Jörg Lindemaier

Klaus Wissing

The invention concerns a load hook with a hook fastened to a hook tackle that can be safely handled. A cover region is arranged at least partially between the hook tackle and the hook, such that the hook is covered starting at the outer contour of the hook tackle.

Load hook

A method for monitoring a chain pulley block and a chain pulley block apparatus with an electric actuator motor () that is connected at the drive side to a transmission () across a sliding clutch (). In order to achieve a safe operation of the chain pulley block, the speed of the transmission () is determined via a sensor (), the determined speed of the transmission () is compared in a control device () to the operating speed of the actuator motor () as determined from rated duty of the actuator motor () and if a deviation is found between the speed of the transmission () and the operating speed, allowing for tolerances and any transmission ratio of the transmission (), the actuator motor () is switched off.

Method of monitoring a chain pulley block and chain pulley block apparatus

A chain block with a drive motor () with a motor shaft (), which is connected at the take-off side via a slip clutch () to a transmission input shaft (), having a first gear () and mounted in a housing () by pivot bearings (), of an at least one-stage transmission (). In order to create a simple design of chain block with a slip clutch, the transmission input shaft () is to be mounted floating in the pivot bearings () in order to change the frictional force of the slip clutch ().

Chain block

A chain block with a drive motor () and with a transmission (), connected to the drive motor () at the take-off side, with a transmission output shaft (), on which a chain wheel () is rigidly arranged for pulling a chain. In order to create a compact chain block, the chain wheel () faces the drive motor () at its take-off end face () and the outer circumference of the chain wheel () reaches into the imaginary extension of the outer contour of the drive motor ().

A winch including a casing for accommodating an electric motor, a gearbox and a roller for winding and unwinding a traction member. In order to provide a cost-effective flat winch which can be transported by a single person and used universally, in particular for the domestic sector, the casing has a box-like configuration to exhibit a shape and size of a suitcase or attach&eacute; case, with the casing having opposite flat outer sides, with one outer side having attached thereon a suspension member, and the other outer side being formed with an opening for passage of the traction member. The electric motor, the gearbox and the roller are arranged in the casing and extend in a common plane, with the casing including a handle to allow transport of the winch by a person. The electric motor may be designed as a universal motor, and connected via a belt drive to the gearbox which is designed as a self-locking worm drive.

Portable winch

A travelling mechanism for a rail-movable lifting device includes a carrier with running wheels which roll on a longitudinally extending running surface of a rail. A double lever is pivotally mounted on the carrier. A drivable friction wheel that is positionable on a longitudinally extending friction surface of the rail is rotatably mounted on the double lever. An opposing side of the double lever supports the lifting device, whereby the double lever presses the friction wheel against the friction surface of the rail by a force under the weight of the lifting device.

Travelling mechanism of a rail-movable lifting device

A load-supporting apparatus, includes a housing, a load hook defining a throat area and swingably mounted in the housing for rotation in a vertical plane between a locked stand-by position in which the load hook is disengaged from a pick-up eyelet of a load and a locked load-receiving position in which the load hook engages the pick-up eyelet of the load. Operatively connected to the load hook is a centering unit for effecting a rotation of the load-bearing between the stand-by and load-receiving positions when the centering unit encounters a resistance, with the centering unit closing off the throat area of the load hook after swinging of the load hook into the load-receiving position.

Load-supporting apparatus for loads provided with a pick-up eyelet

Growing community of inventors

Herne, Germany

Ralf Eising