Inventio Ag

Heinrich Küttel

Andrzej Cholinski

Daniel Fischer

Danilo Peric

A drive unit has at least one motor, a motor stand, a bearing block, a drive pulley and a counter-roller attachment. The drive pulley is mounted at the motor stand and at the bearing block by a shaft. A respective brake is arranged at the bearing block at each side. Webs connect the motor stand with the bearing block. The motor stand, the bearing block and the webs form a stable structure without an engine frame carrying the motor stand and the bearing block being necessary. A counter-roller attachment consisting of side plates and a counter-roller is arranged directly at the motor stand and the bearing block.

Drive unit, without engine frame, for an elevator

A lift has a lift cage movable in a lift shaft and is connected with a counterweight by means of at least one support means. The lift cage or counterweight moves by means of at least one drive means separate from the support means. One end of the drive means engages the upper end of the counterweight, is guided by way of a drive pulley and by way of a deflecting roller, and engages at its other end with the lower end of the counterweight. A drive unit drives the drive pulley. The drive means consists of a drive part and a tension part of different characteristics, wherein the drive and tension parts are connected by means of a drive means connection.

Lift with support means and drive means

An elevator drive unit includes an engine, an engine stand, a bearing block, a traction sheave and an engine frame with a counter-roller base. The stator of the electric drive is bolted, by means of a flange, to the engine stand. The rotor of the electric drive sits on a free end of a shaft bearing the traction sheave. The shaft is mounted to the bearing block and the engine stand. The traction sheave is mounted to the engine stand bearing block by means of the shaft. A brake is located within the engine stand and is protected by the casing.

Drive unit with brake for an elevator

A deflecting module has deflecting elements that are displaceable relative to one another. The deflecting elements are mutually supported, wherein at each side the outermost deflecting element is carried by a bearing plate. Each deflecting element has a housing which carries an axle and, for the mutual displaceability, has on one side a groove and on the other side a cog. A deflecting roller is rotatably arranged on the axle for guiding and deflecting elevator car and counterweight support elements, for example a flat belt, and producing a change of direction of the support elements.

Deflecting module for elevator

An engine frame and counter-roller support assembly provides for adjustable positioning of the support with respect to the engine frame, thus allowing differing cable-line spacing to be accommodated. The support includes a pair of carrier elements. The counter-roller is supported on an axle in the bore holes of the carrier elements. The carrier elements are identical and each are in the form of a plate with a headliner and reinforcement ribs. The headliner has a contact surface with a number of two-stage bore-holes which serve for the fastening of the counter-roller support to the engine frame. The bore-holes are arranged such that the counter-roller support can be fastened in different positions, according to the required cable-line spacing between cab cables and counterweight cables.

Engine frame with counter-roller support for an elevator drive

An emergency drive is a toothed element such as a gear rim, is arranged on a traction sheave of an elevator drive. During emergency operation, the gear rim is driven by means of a pinion of an auxiliary engine. The engine is installed on the elevator drive only during an emergency operation. After emergency operation, the engine is removed from the drive unit. The gear rim may be composed of several layers of interlocked segments. The layers are mutually shifted in a circumferential direction. Each segment consists of laminated/interlocked sheet metal segments, which are, as mass-produced goods, cheaply producible through cutting and punching procedures.

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Weggis, Switzerland

Heinrich Küttel