Leister Technologies Ag

Siemens Schweiz Ag

Felix Schilter

Andreas Furling

Hilmar Konrad

Roger Burgler

Hideki Ito

Severin Wattenhofer

Roger Bürgler

Various embodiments of the teachings herein include an actuating drive comprising: a drive element; an actuation element; and a restoring spring. The drive element drives the actuation element indirectly about an actuation axis. The actuation element includes a shaft portion concentric to the actuation axis and extends at least partially circumferentially. The restoring spring includes a wound flat spring providing a restoring torque on the actuation element, acting tangentially on the shaft portion, and a free spring end tangentially fastened to the shaft portion. The free spring end is radially externally disposed with respect to the spring axis and fastened tangentially to the shaft portion. The spring is mounted rotatably so the spring axis is radially spaced apart from the actuation axis and aligned parallel to the actuation axis.

Actuating drive having a wound flat spring as a restoring spring, which flat spring is designed as a constant-force spring and acts directly on an actuation connection point of the actuating drive

Various embodiments include device housing for an electrical device comprising: an inner housing with a first lower shell and a first upper shell; and an outer housing with a second lower shell and a second upper shell. There is a cable insertion opening defined by a cable seating profile in the first lower shell and a flush cable cover profile in the first upper shell for a cable routed to the device; a clamping body retained by the inner housing; and a friction and/or form-fitting contact between the clamping body and the cable can be effected by means of the outer housing when the clamping body is pressed onto an outer surface of the cable by the upper shell of the outer housing.

Device housing for an electrical device

Welding machine for edge-side connection at the edge of overlapping material webs, wherein the materials are connectable to one another under the effect of heat and subsequent pressure, with a chassis on which at least guide rollers, a heating device and at least one pressure roller are arranged. The heating device has a cantilevered contact heating element that can be inserted laterally between the edges of the material webs, wherein the chassis is driven by an electric motor which is arranged on a longitudinal leg of the chassis. The electric motor according to the invention is formed as a brushless DC motor and the reduction gear as a planetary gear, which are united by a drum drive motor. In this case, the direct current motor is preferably a disk rotor motor. The chassis has a lateral leg which is adjustable perpendicularly to the working direction relative to the longitudinal leg.

Welding machine for connection of overlapping material webs

Hot air gun

Hot air blower

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Altdorf, Switzerland

Felix Schilter