JPS55110670A - Hydraulic control device for hydraulic-driving-type crawler truck - Google Patents

Hydraulic control device for hydraulic-driving-type crawler truck

Info

Publication number
JPS55110670A
JPS55110670A JP1849179A JP1849179A JPS55110670A JP S55110670 A JPS55110670 A JP S55110670A JP 1849179 A JP1849179 A JP 1849179A JP 1849179 A JP1849179 A JP 1849179A JP S55110670 A JPS55110670 A JP S55110670A
Authority
JP
Japan
Prior art keywords
hydraulic
cylinder
driving
lever
point
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
JP1849179A
Other languages
Japanese (ja)
Inventor
Yukio Tamura
Zenzaburo Oota
Koji Oogaki
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP1849179A priority Critical patent/JPS55110670A/en
Publication of JPS55110670A publication Critical patent/JPS55110670A/en
Pending legal-status Critical Current

Links

Landscapes

  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

PURPOSE: To enable efficient driving by providing a linking mechanism composed of spring tubes between a lever and a selector valve both swaying together with a hydraulic cylinder so as to enable the increase of the time in which hydraulic pressure is sent into the hydraulic cylinder to a large extent.
CONSTITUTION: In a hydraulic-driving-type crawler truck a starting wheel 4 is rotated through a crank shaft 7 by each cylinder 8 driving by the hydraulic pressure supplied by a hydraulic-pressure source through a selector valve 12. In this case, when the cylinder 8 starts extending from the point A and the starting wheel 4 is rotated in the direction of a, the tip of a lever 14 is turned in the direction of b, moving to the right a spool 12a of the selector valve 12 through a linking mechanism 13 containing spring tubes 15 and 16. By this, the cylinder 8 continues to extend to the point C, while the tip of the lever 14 being turned in the direction of e after crossing the point B. In the meanwhile, the swaying movement of the lever 14 is allowed by the linking mechanism 13 even after the spool 12a reaches the end of a stroke, thus the cylinder 8 being driven efficiently.
COPYRIGHT: (C)1980,JPO&Japio
JP1849179A 1979-02-21 1979-02-21 Hydraulic control device for hydraulic-driving-type crawler truck Pending JPS55110670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1849179A JPS55110670A (en) 1979-02-21 1979-02-21 Hydraulic control device for hydraulic-driving-type crawler truck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1849179A JPS55110670A (en) 1979-02-21 1979-02-21 Hydraulic control device for hydraulic-driving-type crawler truck

Publications (1)

Publication Number Publication Date
JPS55110670A true JPS55110670A (en) 1980-08-26

Family

ID=11973089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1849179A Pending JPS55110670A (en) 1979-02-21 1979-02-21 Hydraulic control device for hydraulic-driving-type crawler truck

Country Status (1)

Country Link
JP (1) JPS55110670A (en)

Similar Documents

Publication Publication Date Title
JPS5536132A (en) Power steering for vehicle
JPS55110670A (en) Hydraulic control device for hydraulic-driving-type crawler truck
JPS5610833A (en) Drum brake
JPS5551623A (en) Auxiliary device for speed change operating mechanism in vehicle
DE69703170D1 (en) Hydraulic system
DE10221269A1 (en) Device on brake system of IC engines to recover secondary energy during braking process, store it in accumulator, and use compressed air energy as vehicle fuel
JPS5271028A (en) Power steering apparatus for car
JPS52127591A (en) Reactor control rod driving device
DE58904243D1 (en) DEVICE FOR SWITCHING OFF THE GAME BETWEEN COUPLING PARTS OF A TRAILER COUPLING.
JPS5268687A (en) Motion control device for oil pressure cylinder
JPS578330A (en) Idle up unit for power steering
SU375124A1 (en)
JPS52150874A (en) Liquid pressure impact machine of self-oscillating type
JPS53103205A (en) Motin controlling device for piston pump
JPS5376275A (en) Cylinder unit
JPS5218569A (en) Hydraulic cylinder for trnsmission control
SU918582A1 (en) Differential cylinder hydraulic control system
JPS5637912A (en) Transfer stroke controller for walking-beam heating furnace
JPS535373A (en) Damping oil pressure controller
SU1253893A1 (en) Refuse compressing and unloading arrangement
RU1821350C (en) Impact-action lever power driver
JPS5326052A (en) Automatically stopping means for crane
JPS5523342A (en) Guide vane controller of hydraulic machine
JPS5449594A (en) Self-running type line penetrating machine
JPS5415521A (en) Liquid feeding device