Electric regulating device

Claim 1

An electric regulating device, particularly for a speed control device for motor vehicles, comprising a regulating member, means for actuating said regulating member, said means constituting a rotatably mounted element, a servomotor, a coupleable mechanical gearing means and a coupling means therefor including an electromagnet for operatively connecting said element with said servomotor, an armature cooperating with said electromagnet, and said gearing means includes a plurality of gears, at least one of said gears of said gearing means being substantially radially moveably mounted and being operatively connected with said armature, said gearing means including a gearwheel operatively coordinated to said at least one gear, spring means for biasing said armature by a spring force for moving said one gear out of engagement with said gearwheel when said electromagnet is without current, means for reducing pretension of said spring means in a neutral position of the regulating device, said pretension reducing means includes a cam wheel operatively coupled to said element, said spring means comprises a compression spring having one end in connection with said armature and having another end supported on said cam wheel, a housing, said at least one gear constitutes another gearwheel having a shaft, said shaft is articulated on one end thereof on said housing, an arm disposed on said armature, and the other end of said shaft is disposed on said arm, said one end of said shaft is formed semi-spherically, said housing is formed with a spherical indentation, said one end of said shaft is mounted in said spherical indentation, said other end of said shaft is formed into a pin-shaped set-off, said arm is formed with an opening, said pin-shaped set-off is inserted through said opening in said arm, said one end of said compression spring is mounted on said arm against said pin-shaped set-off, said arm includes a free end adjacent said opening, a pin is secured to said free end of said arm, and said spring means includes a substantially U-shaped central portion engaged around said pin.