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Illustrated above is an electromechanical multiplexing device for controlling two separate functions from a single electromagnet.
English (United States)
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Initiating Two Independent Functions with One Actuator
Illustrated above is an electromechanical multiplexing device for controlling
two separate functions from a single electromagnet.
Solenoid 10 may be activated at any time during a cycle by providing it an
appropriate electrical pulse. When the solenoid is activated, the core or shaft is
moved leftward. Attached to the left end of the core or shaft 12 is a device which
may accomplish a connection between parts, such as the rack shift interposer
illustrated in U. S. Patent 3,948,381. Thus, if the solenoid is activated at the
appropriate time, the interposer is placed between the acting parts in U. S.
Patent 3,948,381 to accomplish a rack shift. Simultaneously, the other end of the
shaft 12 pulls on bell crank 14, thereby moving latch 16 from engagement with
the follower 18. Follower 18 is spring biased by spring 20 to follow the cam
profile on cam 22.
As can be seen, if the solenoid is activated in an early portion of the cycle,
the latch 16 will be withdrawn from interposer 18 while the cam profile is
sufficiently high to prevent the follower from dropping, thereby preventing it from
triggering a secondary function. However, should the solenoid be activated late
in the cycle, the motion of the left end of shaft 12 will be ineffective, and latch 16
will be withdrawn from engagement with follower 18, thereby providing an
opportunity for the follower to respond to spring 20 and follow the cam profile 22,