JPS5313761A - Method for detecting elevator in contact of floor in freight handling machine - Google Patents

Method for detecting elevator in contact of floor in freight handling machine

Info

Publication number
JPS5313761A
JPS5313761A JP8218576A JP8218576A JPS5313761A JP S5313761 A JPS5313761 A JP S5313761A JP 8218576 A JP8218576 A JP 8218576A JP 8218576 A JP8218576 A JP 8218576A JP S5313761 A JPS5313761 A JP S5313761A
Authority
JP
Japan
Prior art keywords
floor
contact
handling machine
freight handling
elevator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8218576A
Other languages
Japanese (ja)
Inventor
Keiji Manabe
Mitsuru Hirai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Kiden Kogyo Ltd
Original Assignee
Hitachi Kiden Kogyo Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Kiden Kogyo Ltd filed Critical Hitachi Kiden Kogyo Ltd
Priority to JP8218576A priority Critical patent/JPS5313761A/en
Publication of JPS5313761A publication Critical patent/JPS5313761A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)

Abstract

PURPOSE: To intend to simplify the structure of detecting an elevator in contact on the floor for detecting it by the generated voltage drop of the motor or the decrease of the speed by dynamically controlling a hoisting induction motor of the elevator to reduce the production cost and simplify the maintenance.
COPYRIGHT: (C)1978,JPO&Japio
JP8218576A 1976-07-10 1976-07-10 Method for detecting elevator in contact of floor in freight handling machine Pending JPS5313761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8218576A JPS5313761A (en) 1976-07-10 1976-07-10 Method for detecting elevator in contact of floor in freight handling machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8218576A JPS5313761A (en) 1976-07-10 1976-07-10 Method for detecting elevator in contact of floor in freight handling machine

Publications (1)

Publication Number Publication Date
JPS5313761A true JPS5313761A (en) 1978-02-07

Family

ID=13767373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8218576A Pending JPS5313761A (en) 1976-07-10 1976-07-10 Method for detecting elevator in contact of floor in freight handling machine

Country Status (1)

Country Link
JP (1) JPS5313761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567889A (en) * 1979-06-26 1981-01-27 Shinko Electric Co Ltd Landing detector for grab backet

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832011A (en) * 1971-08-27 1973-04-27

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4832011A (en) * 1971-08-27 1973-04-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567889A (en) * 1979-06-26 1981-01-27 Shinko Electric Co Ltd Landing detector for grab backet
JPS5738515B2 (en) * 1979-06-26 1982-08-16

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