FI904930A - Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine - Google Patents

Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine Download PDF

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Publication number
FI904930A
FI904930A FI904930A FI904930A FI904930A FI 904930 A FI904930 A FI 904930A FI 904930 A FI904930 A FI 904930A FI 904930 A FI904930 A FI 904930A FI 904930 A FI904930 A FI 904930A
Authority
FI
Finland
Prior art keywords
control
drive system
cutting saw
saw
treatment machine
Prior art date
Application number
FI904930A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI91703C (en
FI904930A0 (en
FI91703B (en
Inventor
Arto Timperi
Marko Paakkunainen
Original Assignee
Rauma Repola Oy
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 Rauma Repola Oy filed Critical Rauma Repola Oy
Priority to FI904930A priority Critical patent/FI91703C/en
Publication of FI904930A0 publication Critical patent/FI904930A0/en
Publication of FI904930A publication Critical patent/FI904930A/en
Application granted granted Critical
Publication of FI91703B publication Critical patent/FI91703B/en
Publication of FI91703C publication Critical patent/FI91703C/en

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  • Fluid-Pressure Circuits (AREA)
  • Sawing (AREA)

Abstract

A control and drive system 3 for a cross-cutting saw at the end of a beam of a tree-felling machine is arranged to control a motor M which is operated by pressure medium and which is in force-transmitting communication with the saw, and to which a line L is connected which is in turn connected to a pressure medium source P and has control members for controlling the flow therein. The control members are placed in a part located at the end of the beam and supporting the saw, and they comprise a steplessly adjustable flow control valve 2 which regulates the amount of pressure medium in the line L, a pressure compensator 4 and a pilot line branching off from the flow control valve 2, and a pilot valve 1 arranged therein. The system consists of a valve block and the valves are cartridge valves which can be secured on the block. <IMAGE>
FI904930A 1990-10-08 1990-10-08 Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine FI91703C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI904930A FI91703C (en) 1990-10-08 1990-10-08 Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI904930 1990-10-08
FI904930A FI91703C (en) 1990-10-08 1990-10-08 Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine

Publications (4)

Publication Number Publication Date
FI904930A0 FI904930A0 (en) 1990-10-08
FI904930A true FI904930A (en) 1992-04-09
FI91703B FI91703B (en) 1994-04-29
FI91703C FI91703C (en) 1995-10-17

Family

ID=8531186

Family Applications (1)

Application Number Title Priority Date Filing Date
FI904930A FI91703C (en) 1990-10-08 1990-10-08 Control and drive system for a cutting saw at the end of a swing bar of a tree treatment machine

Country Status (1)

Country Link
FI (1) FI91703C (en)

Also Published As

Publication number Publication date
FI91703C (en) 1995-10-17
FI904930A0 (en) 1990-10-08
FI91703B (en) 1994-04-29

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Legal Events

Date Code Title Description
BB Publication of examined application
FG Patent granted

Owner name: PLUSTECH OY

PC Transfer of assignment of patent

Owner name: JOHN DEERE FORESTRY OY

Free format text: JOHN DEERE FORESTRY OY

MA Patent expired