Claims
- 1. An apparatus for feeding sheets to a coordinate plotter, comprising:
- a suction device provided displaceably between a tray, in which the sheets are stored, and a table of the coordinate plotter, said suction device being capable of sucking one of the sheets thereon;
- drive means for moving the suction device reciprocally between the tray and the table;
- first detection means for detecting that the suction device has reached a temporarily-placing position on the table, thereby stopping the suction of the sheet by the suction device and at the same time actuating the drive means so as to retreat the suction device; and
- second detection means for detecting that the suction device has retreated exactly over a predetermined distance from the temporarily-placing position, thereby resuming the suction of the sheet by the suction device and at the same time actuating the drive means to cause the suction device to advance again.
- 2. An apparatus according to claim 1, wherein the suction device is equipped with a suction cup connected to a vacuum source by way of a solenoid valve and an air-feeding tube connected to an air source by way of a solenoid valve and adapted to blow air to a point underneath the sheet sucked on the suction cup.
Priority Claims (2)
Number |
Date |
Country |
Kind |
58-165118 |
Sep 1983 |
JPX |
|
58-166576 |
Sep 1983 |
JPX |
|
Parent Case Info
This is a division of application Ser. No. 647,990 filed Sept. 6, 1984 now U.S. Pat. No. 4,635,365.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4287459 |
Dahlstrom |
Sep 1981 |
|
4483527 |
Hashimoto et al. |
Nov 1984 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
103465 |
Aug 1979 |
JPX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
647990 |
Sep 1984 |
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