Title:
APPARATUS FOR AUTOMATICALLY CONTROLLING OPERATION OF SLIDE OF FAIL-SAFE PRESS
Document Type and Number:
WIPO Patent Application WO/1998/009802
Kind Code:
A1
Abstract:
An apparatus for automatically controlling the operation of a slide of a fail-safe press. The movement of the hands of a worker in/out of dangerous areas (D and D�N?) above the bolster of the press is detected on the basis of the output generation modes of two light curtains (5 and 21). When the movement of the hands of the worker out of the dangerous areas (D and D�N?) is detected a signal which permits the descending operation of the slide is generated.
Inventors:
FUTSUHARA KOICHI (JP)
SHIRAI TOSHIHITO (JP)
SAKAI MASAYOSHI (JP)
SHIRAI TOSHIHITO (JP)
SAKAI MASAYOSHI (JP)
Application Number:
PCT/JP1997/000727
Publication Date:
March 12, 1998
Filing Date:
March 07, 1997
Export Citation:
Assignee:
NIPPON SIGNAL CO LTD (JP)
FUTSUHARA KOICHI (JP)
SHIRAI TOSHIHITO (JP)
SAKAI MASAYOSHI (JP)
FUTSUHARA KOICHI (JP)
SHIRAI TOSHIHITO (JP)
SAKAI MASAYOSHI (JP)
International Classes:
B30B15/28; F16P3/12; F16P3/14; H01H9/54; H01H47/00; H03K17/18; (IPC1-7): B30B15/00; F16P3/12; H01H9/54
Foreign References:
| JP7092193B2 | 2022-06-28 | |||
| JPS6340719Y2 | 1988-10-24 | |||
| JP6098518B2 | 2017-03-22 | |||
| JPH0615493A | 1994-01-25 | |||
| JPH06147398A | 1994-05-27 | |||
| US5285721A | 1994-02-15 | |||
| JPS6343099A | 1988-02-24 | |||
| JPS5495851U | 1979-07-06 |
Attorney, Agent or Firm:
Sasajima, Fujio (19-5 Toranomon 1-chom, Minato-ku Tokyo 105, JP)
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