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

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United States of America Patent

PATENT NO 11828350
SERIAL NO

17432653

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
SIEMENS SCHWEIZ AGFREILAGERSTRASSE 40 ZURICH 8047

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Konrad, Hilmar Baar, CH 13 43
Schilter, Felix Altdorf, CH 6 57

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