Boots – shoes – and leggings
Patent
1980-09-04
1983-05-17
Wise, Edward J.
Boots, shoes, and leggings
318573, 318603, 324 73AT, G05B 1132, H05K 1300, H04N 702, H02P 800
Patent
active
043843344
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to an apparatus which effectively drives pulse motors for an automatic testing apparatus for testing printed circuit boards of television receivers at a series of checking and adjusting steps.
BACKGROUND ART
On a printed circuit board of a television receiver there are constituted various circuit blocks such as a reception circuit block and a deflection circuit block. This is made possible because parts have been successfully miniaturized. If such a printed circuit board is manually tested, it will be erroneously checked or erroneously adjusted on many occasions, and the testing procedures will take a considerable time. An automatic testing apparatus is therefore demanded.
DISCLOSURE OF INVENTION
This invention provides an apparatus for driving pulse motors for automatically adjusting external circuits, comprising: control terminal and a second control terminal; respective rotation direction switching circuits and a plurality of driven devices connected to the respective pulse motors for adjusting said external circuits, each said pulse motor rotating; in one direction when a control signal is supplied to the first control terminal of the corresponding rotation direction switching circuit and rotating in the reverse direction when a control signal is supplied to the second control terminal of the corresponding rotation direction switching circuit; measuring the outputs of parts of circuits means for comparing output data of the measuring means with predetermined data and for delivering logic outputs through first output terminals thereon, when the output data of the measuring means is greater than the predetermined data, through second output terminals thereof when the output data of the measuring means is smaller than the predetermined data, and through third output terminals thereof when the output data of the measuring means is substantially equal to the predetermined data, the first output terminals connected to the respective first control terminals and the second output terminals connected to the respective second control terminals; motors; digital comparators for individually inhibiting the drive pulses from being supplied to the pulse motors when receiving predetermined logic outputs from the third output terminals and stop signal when receiving the predetermined logic outputs from the third output terminals so as to turn off the gate circuit means, whereby automatic adjustment of the external circuits is stopped, are adjusted at the same time, and the adjusting operation is stopped when the outputs of all the circuits come to have desired characteristics at the same time.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a perspective view of an automatic part testing and adjusting apparatus;
FIG. 2 is a side view of the automatic part testing and adjusting apparatus shown in FIG. 1;
FIG. 3 shows the structure of an Example of a driver device;
FIG. 4 shows the structure of drive means for moving the driver device of FIG. 3 in the axial direction;
FIG. 5 shows an example of clutch means of the driver device shown in FIG. 3;
FIG. 6 shows an example of a tip replacement section of the driver device shown in FIG. 3;
FIG. 7 shows how the distal end portion of the driver device of FIG. 3 is put in engagement with a part to be adjusted;
FIG. 8 illustrates the structure of an apparatus for driving the pulse motors of an automatic testing apparatus, an embodiment of this invention;
FIG. 9 and FIG. 10 are circuit diagrams of the digital comparator shown in FIG. 8; and
FIG. 11 shows the structure of an apparatus for driving the pulse motors of an automatic testing apparatus, another embodiment of this invention.
BEST MODES OF CARRYING OUT THE INVENTION
Now embodiments of this invention will be described in detail with reference to the accompanying drawings.
First, referring to FIGS. 1 and 2, there will be described an automatic apparatus for testing and adjusting parts, to which a pulse motor driving apparatus of this invention is applied. In FIGS. 1 and 2, numeral 1
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patent: 4112364 (1978-09-01), Katz
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patent: 4168527 (1979-09-01), Winkler
patent: 4204155 (1980-05-01), Terry
patent: 4267507 (1981-05-01), Guerpont
patent: 4270178 (1981-05-01), Lillig
patent: 4277831 (1981-07-01), Saunders et al.
patent: 4320339 (1982-03-01), Vancelette
patent: 4321533 (1982-03-01), Matrone
Anzai Kuniaki
Tateishi Kazushi
Tomita Taketoshi
Tokyo Shibaura Denki Kabushiki Kaisha
Wise Edward J.
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