Electric regulating device

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.