ELECTROMOTIVE ACTUATING DRIVE
First Claim
1. An electromotive actuating drive, for actuating elements, comprising:
- a housing in which an electric motor is connected by a drive train with an output drive element;
the drive train being a non-self-locking drive train and having a plurality of gear stages;
a manual adjusting shaft for adjusting the output drive element;
with one of the gear stages being operatively connected with a brake element in such a way that at least that part of the drive train which leads from this gear stage to the output drive element is blocked from returning; and
force storage means for driving the output drive element to a predetermined position in the event of a power failure.
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Accused Products
Abstract
An electric motor actuating drive for actuating elements designed such that the drive train, which is formed from spur gears, is not self-locking, and such that a braking spring is operatively connected to a gearbox stage upstream of the output-drive element of the drive train, such that, when the drive motor is disconnected, the actuating element is effectively prevented from being moved even when attempts are made to move it by external force or by extreme force. Furthermore, the actuating drive is in the form of a spring return and is equipped with a drive spring which is arranged such that the load on it is removed in the event of electrical power failure, and it therefore acts as a drive element. Furthermore, the electrical components are arranged in an end-face housing wall for a compact design.
11 Citations
18 Claims
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1. An electromotive actuating drive, for actuating elements, comprising:
- a housing in which an electric motor is connected by a drive train with an output drive element;
the drive train being a non-self-locking drive train and having a plurality of gear stages;
a manual adjusting shaft for adjusting the output drive element;
with one of the gear stages being operatively connected with a brake element in such a way that at least that part of the drive train which leads from this gear stage to the output drive element is blocked from returning; and
force storage means for driving the output drive element to a predetermined position in the event of a power failure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a housing in which an electric motor is connected by a drive train with an output drive element;
Specification