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2. 发明专利

JPS62230585A LOAD DETECTOR IN CAGE FOR ELEVATOR 失效
公开(公告)号：JPS62230585A
公开(公告)日：1987-10-09
申请号：JP6721786
申请日：1986-03-27
申请人： HITACHI LTD
发明人： NAKAZATO MASAAKI , MITSUI NOBUO , KOMATSU TSUTOMU , OOTA MASATOSHI , SHIGETA MASAYUKI
IPC分类号： B66B5/14 , B66B1/44 , B66B3/00

7. 发明专利

JPS6023281A CARRIER FACILITY 失效
公开(公告)号：JPS6023281A
公开(公告)日：1985-02-05
申请号：JP12795183
申请日：1983-07-15
申请人： HITACHI LTD
发明人： OOTA MASATOSHI , KITAMURA TETSUO , YOSHIKAWA HISANOJIYOU , YAMAMOTO KAZUHIRO , TACHIBANA MAKOTO
IPC分类号： B61J1/08 , B65G37/00 , B66B17/20

8. 发明专利

JPS6020213A POSITION DETECTING DEVICE OF AUTOMOTIVE TRUCK 失效
公开(公告)号：JPS6020213A
公开(公告)日：1985-02-01
申请号：JP12790483
申请日：1983-07-15
申请人： HITACHI LTD
发明人： YAMAMOTO KAZUHIRO , OOTA MASATOSHI , KITAMURA TETSUO
IPC分类号： G05D1/02
摘要： PURPOSE:To facilitate the detection of position of a truck by sending out a signal from a very short rail when a current collector of the truck comes into contact with plural very short insulated parts provided on the way of a conductor for power source supply. CONSTITUTION:Current from feeders 51, 52 is fed to the feeding piece 40 of a self-propelled truck to rotate a motor 30. Plural insulated 70 parts 81, 82- of minute length are interposed in the middle of one of feeders, for instance 51. Relays 61, 62- are provided in the parts of minute length 81, 82-, and the one end is grounded. The length l2 of the collecting face of the collecting piece 40 is made longer than the length l1 of the non-charged part. Accordingly, feeding is not interrupted even when the self-propelled truck passes the non-charged parts. When the collecting piece 40 comes into contact with the insulated parts 81, 82- simultaneously, the relays 61, 62- operate to allow detection that the self-propelled truck is at position of 61, 82. Thus, the position of automotive truck can be detected by a simple equipment.

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