Patent ID: 9671000
Date: 2017-06-06
CPC Classifications: A47C,F16H,Y10T

Claim:
1. A device for controlling an electric motor-actuated linear drive in the form of a furniture drive for adjusting moveably mounted parts of lying and seating furniture, comprising at least one threaded spindle ( 4 , 5 ) drivable by way of a worm gear transmission for displacement of a respective stroke element, a guide body ( 7 ) which is non-rotatably arranged on the respective threaded spindle ( 4 , 5 ) and on which a worm gear ( 6 ) is rotatably mounted, a coupling sleeve ( 8 ) which is mounted non-rotatably but axially displaceably on the respective guide body ( 7 ) and with which the worm gear ( 6 ) and the guide body ( 7 ) can be selectively connected or separated by means of a claw coupling, a respective actuating element serving for displacement of the coupling sleeves ( 8 ) and a shift mechanism for driving the respective actuating element, characterised in that provided as the shift mechanism is a knob connected by way of a spring element to a rotatably mounted eccentric disc ( 22 ), the eccentric disc ( 22 ) has latching grooves ( 26 ) which are arranged at spacings and which are associated with predetermined shift positions of the knob, a prestressed cam spring ( 27 ) bears against the eccentric disc ( 22 ) and is latchable with a cam projection ( 28 ) provided on the spring into the latching grooves ( 26 ), and the eccentric disc ( 22 ) is operatively connected to the actuating elements of the coupling sleeves ( 8 ).