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    REARREND COLLISION PREVENTING DEVICE FOR UNMANNED TRUCK
    84.
    发明专利
    REARREND COLLISION PREVENTING DEVICE FOR UNMANNED TRUCK 失效

    公开(公告)号：JPS5579734A

    公开(公告)日：1980-06-16

    申请号：JP15113878

    申请日：1978-12-08

    Applicant: HITACHI LTD

    Inventor： MATSUOKA SHIGERU

    IPC: B60T7/22 ,  B60T7/12

    Abstract: PURPOSE:To enable to sense exsistence of an obstacle even on a curved road surely and prevent an accident beforehand by securing a sensing means, for preventing a rear-end collision, to a steering wheel so as to be rotated in a same direction with the steering wheel. CONSTITUTION:In case an obstacle 9 is left on a curved running line and an unmanned truck driven by a running motor 5 is approaching to the obstacle 9, a reflection type photostat 11, attached to a steering wheel 2 by a connecting member 12 as a sensing means for preventing a rear-end collision, is rotated together with the steering wheel 2, rotated by a steering motor 4, upon the truck is going to turn along the curved road. Then, when a direction of a light beam projected from the photostat 11 is directed in a direction of a curved guidance body 8 and the beam is projected against the obstacle 9, a reflected beam thereof is sensed by the sensing means and the rear-end collision may be prevented beforehand.

    AUTOMATIC DOOR OPENING AND CLOSING DEVICE
    86.
    发明专利
    AUTOMATIC DOOR OPENING AND CLOSING DEVICE 失效

    公开(公告)号：JPS54162830A

    公开(公告)日：1979-12-24

    申请号：JP7250278

    申请日：1978-06-14

    Applicant: HITACHI LTD

    Inventor： TSUBAKI TOSHIROU ,  TOKUNAGA TAKESHI ,  YONEKURA SEIJI ,  MATSUOKA SHIGERU ,  MIURA MAKOTO ,  YAMAUCHI KOUJI

    IPC: E05F15/10 ,  E05F15/20

    Abstract: PURPOSE:To provide an automatic door opening and closing device wherein an obstacle detector for detecting an obstacle at the time of opening and closing the door is effectively utilized thereby to constitute a burglary preventing device easily and at cheap cost. CONSTITUTION:By driving a motor 13, torque is transmitted through a pulley 12, a sprocket 11 and a chain 7. The chain 7 is slided within rails 4 thereby to open a garage door 10 through a trolley 8 and a link 9. In such an arrangement, the obstacle detector is constituted in such a manner that, at the time of closing the door, when the obstacle is clamped by the door, the chain 7 delivered by the sprocket 11 is compressed, and an obstacle detecting member 30 is moved downward against a spring 31 to operate an obstacle detecting microswitch 32. In this case, even when an intruder attempts to forcibly open the door, the chain 7, similarly as described above, is compressed by an amount corresponding to the shift of the door in the opening direction to press down the detecting member 30, and a microswitch 32 is actuated to be able to report the burglary.

    CALLING SYSTEM OF NOOMAN CARRIAGE
    87.
    发明专利
    CALLING SYSTEM OF NOOMAN CARRIAGE 失效

    公开(公告)号：JPS5455283A

    公开(公告)日：1979-05-02

    申请号：JP12106477

    申请日：1977-10-09

    Applicant: HITACHI LTD

    Inventor： NATSUNO KENJI ,  MATSUOKA SHIGERU

    IPC: B65G35/00 ,  B62D1/28 ,  B65G43/00 ,  G05D1/02 ,  G05D1/03

    Abstract: PURPOSE:To enable the calling information of no-man wheeler to be informed to each calling ower, in the no-man wheeler used in a production line of an assemly plant even to the information of calling from a plurality of stopped points. CONSTITUTION:The supply of parts from a parts storehouse to assembly lines 26 is allowed to be runned by means of loading the parts on the no-man wheeler 23 to the required assembly line 26 after the workmen of the storehouse seeing the indication of an indicating panel 31, when a calling is out from each calling points 28, and an information is sent to the indicating panel 31 of the storehouse. Unindicated information circuit is set up between calling panels 28 and the indicating panel 31, and this information circuit is constituted of a juging circuit which judges a calling positon, a memory circuit which memorizes a constant number of information, a cheque circuit which does not receive the calling information beyond a constant number, and a driver circuit which lights the lamp of the memorized calling position, and determines the position of destination of the no-man wheeler 23.

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