JPS55155503A - Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck - Google Patents

Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck

Info

Publication number
JPS55155503A
JPS55155503A JP6417479A JP6417479A JPS55155503A JP S55155503 A JPS55155503 A JP S55155503A JP 6417479 A JP6417479 A JP 6417479A JP 6417479 A JP6417479 A JP 6417479A JP S55155503 A JPS55155503 A JP S55155503A
Authority
JP
Japan
Prior art keywords
lifting
speed
motor
loading
lever
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
JP6417479A
Other languages
Japanese (ja)
Inventor
Tetsuo Saito
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.)
TCM Corp
Original Assignee
Toyo Umpanki Co 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 Toyo Umpanki Co Ltd filed Critical Toyo Umpanki Co Ltd
Priority to JP6417479A priority Critical patent/JPS55155503A/en
Publication of JPS55155503A publication Critical patent/JPS55155503A/en
Pending legal-status Critical Current

Links

Landscapes

  • Forklifts And Lifting Vehicles (AREA)
  • Control Of Direct Current Motors (AREA)

Abstract

PURPOSE: To control the speed of the loading/unloading motor to an optimum value responsive to the loads of high and low power actuators by employing one motor to be switched for both lifting and tilting operations upon switching of a control circuit therefor.
CONSTITUTION: The loading/unloading motor is constructed to actuate both lifting and tilting operations of forks in the storage battery type fork lift truck. The motor control circuit 1 has a lifting speed instruction circuit (speed instruction circuit for high power actuator) and a tilting speed instruction circuit. When an operator slightly moves a lifting lever 9 or a tilting lever 15, a lift instruction circuit or a tilt instruction circuit is operated by a limit switch 14, 20 or 21. When the lever is further moved, hydraulic oil is flowed from a hydraulic pump to a lifting or titling cylinder to telescope the piston in the cylinder at a speed responsive to the opening of a control valve 10 or 16. When the control valve is fully opened, the motor speed is instructed in response to the moved amount of the lever.
COPYRIGHT: (C)1980,JPO&Japio
JP6417479A 1979-05-24 1979-05-24 Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck Pending JPS55155503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6417479A JPS55155503A (en) 1979-05-24 1979-05-24 Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6417479A JPS55155503A (en) 1979-05-24 1979-05-24 Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck

Publications (1)

Publication Number Publication Date
JPS55155503A true JPS55155503A (en) 1980-12-03

Family

ID=13250429

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6417479A Pending JPS55155503A (en) 1979-05-24 1979-05-24 Control unit for loading/unloading dc shunt motor in storage battery type fork lift truck

Country Status (1)

Country Link
JP (1) JPS55155503A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822299A (en) * 1981-07-29 1983-02-09 日産自動車株式会社 Forklift
JPS58196400U (en) * 1982-06-23 1983-12-27 小松フオ−クリフト株式会社 Rotation speed control device for hydraulic motor of battery forklift truck
JPS6040400A (en) * 1984-03-29 1985-03-02 新明和工業株式会社 Feeder for control signal of service car
JPH0651557B2 (en) * 1983-05-26 1994-07-06 キャタピラー インダストリアル インコーポレーテッド Automatic hydraulic speed controller
WO2006090655A1 (en) * 2005-02-25 2006-08-31 Mitsubishi Heavy Industries, Ltd. Load handling regeneration method and load handling regeneration system of battery type industrial vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172047A (en) * 1974-12-20 1976-06-22 Komatsu Mfg Co Ltd BATSUTERIFUOOKURIFUTONI OKERU SAGYOKINO SEIGYOSOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5172047A (en) * 1974-12-20 1976-06-22 Komatsu Mfg Co Ltd BATSUTERIFUOOKURIFUTONI OKERU SAGYOKINO SEIGYOSOCHI

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822299A (en) * 1981-07-29 1983-02-09 日産自動車株式会社 Forklift
JPS58196400U (en) * 1982-06-23 1983-12-27 小松フオ−クリフト株式会社 Rotation speed control device for hydraulic motor of battery forklift truck
JPH0651557B2 (en) * 1983-05-26 1994-07-06 キャタピラー インダストリアル インコーポレーテッド Automatic hydraulic speed controller
JPS6040400A (en) * 1984-03-29 1985-03-02 新明和工業株式会社 Feeder for control signal of service car
JPH0536359B2 (en) * 1984-03-29 1993-05-28 Shin Meiwa Ind Co Ltd
WO2006090655A1 (en) * 2005-02-25 2006-08-31 Mitsubishi Heavy Industries, Ltd. Load handling regeneration method and load handling regeneration system of battery type industrial vehicle
JPWO2006090655A1 (en) * 2005-02-25 2008-07-24 三菱重工業株式会社 Cargo handling and regeneration method for battery-powered industrial vehicles and cargo handling and regeneration system
US7770697B2 (en) 2005-02-25 2010-08-10 Mitsubishi Heavy Industries, Ltd. Energy recovering method and system in hydraulic lift device of battery operated industrial trucks
JP4727653B2 (en) * 2005-02-25 2011-07-20 三菱重工業株式会社 Cargo handling and regeneration method for battery-powered industrial vehicles and cargo handling and regeneration system

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