JPS52101558A - Device for converting speed of crane - Google Patents

Device for converting speed of crane

Info

Publication number
JPS52101558A
JPS52101558A JP1704276A JP1704276A JPS52101558A JP S52101558 A JPS52101558 A JP S52101558A JP 1704276 A JP1704276 A JP 1704276A JP 1704276 A JP1704276 A JP 1704276A JP S52101558 A JPS52101558 A JP S52101558A
Authority
JP
Japan
Prior art keywords
crane
speed
converting speed
converting
speed motor
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
JP1704276A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Nakagaki
Kazuharu Yamaguchi
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP1704276A priority Critical patent/JPS52101558A/en
Publication of JPS52101558A publication Critical patent/JPS52101558A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control And Safety Of Cranes (AREA)

Abstract

PURPOSE: To provide a device for converting the speed of a crane which brakes to coast for predetermined section and to then start low speed motor when the coasting distance is long after high speed motor is stopped in order not to produce a shock in case the speed is converted from high to low.
COPYRIGHT: (C)1977,JPO&Japio
JP1704276A 1976-02-20 1976-02-20 Device for converting speed of crane Pending JPS52101558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1704276A JPS52101558A (en) 1976-02-20 1976-02-20 Device for converting speed of crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1704276A JPS52101558A (en) 1976-02-20 1976-02-20 Device for converting speed of crane

Publications (1)

Publication Number Publication Date
JPS52101558A true JPS52101558A (en) 1977-08-25

Family

ID=11932932

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1704276A Pending JPS52101558A (en) 1976-02-20 1976-02-20 Device for converting speed of crane

Country Status (1)

Country Link
JP (1) JPS52101558A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544437A (en) * 1978-09-22 1980-03-28 Hitachi Ltd Screw type withdrawing device
JPS55176148U (en) * 1979-06-06 1980-12-17
JPS6144481U (en) * 1984-08-27 1986-03-24 株式会社 キト− Buffer deceleration device for two-speed traveling gear
JPS6381091U (en) * 1986-11-13 1988-05-28

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5544437A (en) * 1978-09-22 1980-03-28 Hitachi Ltd Screw type withdrawing device
JPS55176148U (en) * 1979-06-06 1980-12-17
JPS5942355Y2 (en) * 1979-06-06 1984-12-11 株式会社吉野工業所 Bottle opening sealing device
JPS6144481U (en) * 1984-08-27 1986-03-24 株式会社 キト− Buffer deceleration device for two-speed traveling gear
JPS6381091U (en) * 1986-11-13 1988-05-28
JPH0511276Y2 (en) * 1986-11-13 1993-03-19

Similar Documents

Publication Publication Date Title
JPS52101359A (en) Automatic mission with direct clutch
JPS5231414A (en) Safety device for electromobile
JPS5335829A (en) Decompressing device to be used for motor bicycle and the like
JPS52101558A (en) Device for converting speed of crane
JPS5320017A (en) Exhaust reflux controller
JPS5320089A (en) Water wheel speed governor
JPS5347666A (en) Method of minimizing fluctuation of crane
JPS51143148A (en) Method and system of converting centrifugal force to thrust
JPS51127418A (en) Brake circuit for motor
JPS5216738A (en) Drive mechanism for vehicle
JPS5364306A (en) Method of driving energy-saving electric vehicle with power
JPS536776A (en) Hydraulic system
JPS5321719A (en) Motor revolution speed detective system
JPS51129606A (en) Flat motor
JPS5260028A (en) Blank processor
JPS541777A (en) Gear-shift state detecting apparatus
JPS52121254A (en) Hydraulic circuit for crane securing apparatus
JPS51139218A (en) Memory
JPS5247161A (en) Automatic reduction gear
JPS548824A (en) Diesel generating set
JPS53118723A (en) Flywheel generator
JPS52106020A (en) Turbo charger
JPS5255364A (en) Wide dynamic range a/d conversion system
JPS51133708A (en) Small-size d-c motor
JPS5313750A (en) Elevator waiting time indicator