LOCK MECHANISM FOR GAGE WIDTH OF WORK MACHINE

PROBLEM TO BE SOLVED: To eliminate troubles for reducing a manufacture cost and suppressing a breakage, and to omit an effort for locking a gage width in a reduced state.SOLUTION: A lock mechanism comprises: a track roller frame disposed on the two outer sides of a main frame of a lower running appa...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TSUNEYOSHI TAKESHI, KIDOGUCHI SHUJI, MIYATA KAZUHISA
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To eliminate troubles for reducing a manufacture cost and suppressing a breakage, and to omit an effort for locking a gage width in a reduced state.SOLUTION: A lock mechanism comprises: a track roller frame disposed on the two outer sides of a main frame of a lower running apparatus; beam assemblies 25L and 25R extended from the track roller frame and inserted into the main frame; and an actuator for connecting the beam assemblies 25L and 25R. A lock portion 6 for locking the gauge width into a constricted state is constituted to comprise: brackets 60L and 60R arranged with a position shift at the individual leading ends of the beam assemblies 25L and 25R; and a pin 65 arranged between the brackets 60L and 60R and mounted vertically movably at the widthwise center. The brackets 60L and 60R are equipped, at the mutually opposing leading end portions, with an inclined plane 61a directed to the widthwise inner side and upward, and a downward recess 61b extending on the widthwise outer side of the inclined plane 61a for retaining the pin 65.SELECTED DRAWING: Figure 5 【課題】製造コストの削減及び破損の抑制を図ると共にゲージ幅を縮幅状態にロックするための手間を省く。【解決手段】下部走行装置のメインフレームの両外側に設けられたトラックローラフレームと、前記トラックローラフレームから延設されると共に前記メインフレームに挿入される梁集成体25L,25Rと、梁集成体25L,25Rを連結するアクチュエータとを備える。ゲージ幅を縮幅状態にロックするロック部6は、梁集成体25L,25Rの各先端に前後方向に位置をずらして配設されたブラケット60L,60Rと、ブラケット60L,60Rの相互間に配置され上下移動可能に前記メインフレームの前記幅方向中央に取り付けられたピン65とを備えて構成され、前記ブラケット60L,60Rは、相互に対向する先端部に、前記幅方向内側且つ上方に向く傾斜面61aと、傾斜面61aの前記幅方向外側に連設されピン65を係止する下向き凹部61bとを備える。【選択図】図5