Tente Gmbh & Co. Kg

Georg Hein

Karl-Heinz Plautz

Guenther Hofrichter

Günther Hofrichter

The invention relates to a control and to a method for controling rollers () mounted on a movable part such as, for example, a hospital bed (), wherein one, several or all of the rollers () have a brake mechanism which can be set to a brake position and a release position, further preferably also to a direction-setting position, wherein, further, all the rollers () can be actuated electrically and one or several or all of the rollers () can in addition be actuated manually, and wherein, furthermore, an additional roller () with a wheel having a travel drive is provided, which additional roller () is preferably movable between a lowered position and a raised position. In order to obtain an advantageous control of the rollers in combination with the additional roller and also to provide an advantageous control method for this purpose, it is proposed that the travel drive can be activated only when the rollers () are located in the release position or the direction-setting position.

Control of rollers mounted on a movable part

The invention relates to a roller (), preferably comprising two wheels () and a locking device, an activating part () acting on the locking device for releasing or locking, and the activating part () being movable by a drive, a movement of a transmission part () that is generated by the drive being transmitted via spring force to the activating part () for moving same, and a spring () being supported on the transmission part. In order to provide a roller that allows an advantageous constructional design, it is proposed that a support region is formed for the spring () and/or the spring () and/or the compression spring () on the activating part (), through which region the transmission part () can pass.

Roller

The invention relates to a roller (), preferably comprising two wheels () and a locking device, an activating part () being able to act on the locking device for releasing or locking in a position that corresponds to a directional lock and/or in a position that corresponds to a total lock, and the activating part () being movable by a drive, a linear movement of a transmission part () that is generated by the drive being transmitted via spring force to the activating part () in order to move the activating part, and the activating part (), in any case in a position corresponding to the total lock or in any case in a position corresponding to the direction lock, being in addition movable relative to the stationary transmission part, against a spring supported on the transmission part, into a release position by means of an actuating handle () that is movable independently of the drive and preferably by hand so as to override the total lock or the directional lock. In order to provide a roller that is formed in an advantageous manner with regard to an emergency release, it is proposed that a geometric axis of rotation (d) of the actuating handle () is disposed on the same side as the activating part () with respect to the axis of rotation (D) of the wheel (), the activating part being disposed offset, in a vertical section, with respect to an axis of rotation (D) of the wheel ().

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Luedenscheid, Germany

Georg Hein