JPH025144U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram showing an optical disk library device according to an embodiment of the present invention, FIG. 2a is a schematic configuration diagram showing a shutter mechanism in an open state, and FIG. 3 is a schematic diagram showing the control system of the shutter mechanism, FIG. 4 is a schematic diagram showing an example of a solenoid drive signal, FIG. 5 is a schematic diagram showing another example of a solenoid drive signal, and FIG. 6 is a schematic diagram showing an example of a solenoid drive signal. 7 is a schematic diagram showing another example of the solenoid drive signal, FIG. 8 is a flowchart showing an example of processing when the shutter is locked, and FIG. 9 is a diagram showing the release of the shutter lock. FIGS. 10a and 10b are waveform diagrams showing an example of the speed and acceleration of the shutter when the shutter locks in a conventional device. FIGS. FIG. 12 is a waveform diagram showing an example of the speed and acceleration of the shutter when the shutter locks in this device. FIG. 12 is a schematic diagram showing an example of the conventional device. 2...Shutter, 3...Latch solenoid, 3
2...Shutter control unit, S2...Shutter sensor.

Claims (1)

[Scope of utility model registration request] A sensor detects when the object to be driven by the solenoid has moved to a specified position, and when a solenoid drive command is input, the sensor is energized in the driving direction until the detection mode changes, then energized in the opposite direction for a certain period of time, and then continues in the driving direction. What is claimed is: 1. A solenoid drive control device comprising a control means for exciting the solenoid.