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Electromechnical Toggle Action Device

IP.com Disclosure Number: IPCOM000088266D
Original Publication Date: 1977-May-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Quinn, PA: AUTHOR

Abstract

Solenoids which must remain in operation to hold a load in position for long duty cycles use substantial amounts of power. Accordingly, a mechanism which can respond to a solenoid after only a short period of energization, producing the same result by holding the solenoid's load in position while the solenoid is inactive, will save power. A problem arises if reverse motion of the load to home position must be provided later with the same solenoid. The toggle action of the device of Figs. 1, 2, and 3 permits such short term actuation of solenoid 10, which is rotatably affixed at one end to pivot pin 11 secured to fixed member 12. When solenoid 10 is actuated (Fig. 1), armature 14 pulls its end 15 against pin 16 which rocks toggle plate 18 around pin 19 held on mounting base 20.

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Electromechnical Toggle Action Device

Solenoids which must remain in operation to hold a load in position for long duty cycles use substantial amounts of power. Accordingly, a mechanism which can respond to a solenoid after only a short period of energization, producing the same result by holding the solenoid's load in position while the solenoid is inactive, will save power. A problem arises if reverse motion of the load to home position must be provided later with the same solenoid. The toggle action of the device of Figs. 1, 2, and 3 permits such short term actuation of solenoid 10, which is rotatably affixed at one end to pivot pin 11 secured to fixed member 12. When solenoid 10 is actuated (Fig. 1), armature 14 pulls its end 15 against pin 16 which rocks toggle plate 18 around pin 19 held on mounting base 20. Tab 21 of plate 18 is secured to lever 22 by pin 23. Pin 24 secured to lever 22 rides back and forth in slot 25 in mounting base 26. The distant end of lever 22 is fastened by pin 27 to helical extension spring 28, which is secured to end 15 of armature
14. When end 15 moves to the right, crank 18 rocks clockwise. Tab 21 cranks lever 22 counterclockwise about pin 24 until spring 28 is fully extended as in Fig. 2, which shows the armature 14 immediately after it has been deactivated moving away from pin 16. Then spring 28 pulls solenoid 10 and armature 14 counterclockwise about pin 11 to the position shown in Fig. 3, in which the end 15 has its other leg...