Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide a ground improvement machine that can reliably change an ascent limit of a rod drive unit by a simple operation.SOLUTION: A ground improvement machine is characterized by: providing intermediate part detection means (limit switch) for detecting a rod drive unit in an intermediate part of a leader set up in a base machine; and providing control means having a lifting instruction unit and a lowering instruction unit for making the rod drive unit move up and down, and a change-over switch for switching the enable/disable of the intermediate part detection means. The control means is configured as follows: the lowering command from the lowering instruction unit makes the rod drive unit fall regardless of a state of the intermediate part detection means and a switching state of the change-over switch; and the lifting command from the lifting instruction unit lifts the rod drive unit regardless of a switching state of the change-over switch when the intermediate part detection means is in a non-detection state of the rod drive unit, stops the rod drive unit when the intermediate part detection means is in a detection state of the rod drive unit and the change-over switch is in an effective state, and lifts the rod drive unit regardless of the detection state of the intermediate part detection means when the change-over switch is in an invalid state.SELECTED DRAWING: Figure 1
【課題】 ロッド駆動装置の上昇限を、簡単な操作で確実に変更可能な地盤改良機を提供する。【解決手段】 ベースマシンに立設したリーダの中間部に、ロッド駆動装置を検出する中間部検出手段（リミットスイッチ）を設けるとともに、ロッド駆動装置を昇降させる上昇指令部及び下降指令部と、中間部検出手段の有効／無効を切り替える切替スイッチとを有する制御手段を設け、制御手段は、下降指令部からの下降指令は、中間部検出手段の状態及び切替スイッチの切替状態に関係なくロッド駆動装置を下降させ、上昇指令部からの上昇指令は、中間部検出手段がロッド駆動装置の非検出状態では切替スイッチの切替状態に関係なくロッド駆動装置を上昇させ、中間部検出手段がロッド駆動装置の検出状態かつ切替スイッチが有効状態のときにはロッド駆動装置を停止させ、切替スイッチが無効状態のときには中間部検出手段の検出状態に関係なくロッド駆動装置を上昇させる。【選択図】 図１
PROBLEM TO BE SOLVED: To provide a ground improvement machine that can reliably change an ascent limit of a rod drive unit by a simple operation.SOLUTION: A ground improvement machine is characterized by: providing intermediate part detection means (limit switch) for detecting a rod drive unit in an intermediate part of a leader set up in a base machine; and providing control means having a lifting instruction unit and a lowering instruction unit for making the rod drive unit move up and down, and a change-over switch for switching the enable/disable of the intermediate part detection means. The control means is configured as follows: the lowering command from the lowering instruction unit makes the rod drive unit fall regardless of a state of the intermediate part detection means and a switching state of the change-over switch; and the lifting command from the lifting instruction unit lifts the rod drive unit regardless of a switching state of the change-over switch when the intermediate part detection means is in a non-detection state of the rod drive unit, stops the rod drive unit when the intermediate part detection means is in a detection state of the rod drive unit and the change-over switch is in an effective state, and lifts the rod drive unit regardless of the detection state of the intermediate part detection means when the change-over switch is in an invalid state.SELECTED DRAWING: Figure 1
【課題】 ロッド駆動装置の上昇限を、簡単な操作で確実に変更可能な地盤改良機を提供する。【解決手段】 ベースマシンに立設したリーダの中間部に、ロッド駆動装置を検出する中間部検出手段（リミットスイッチ）を設けるとともに、ロッド駆動装置を昇降させる上昇指令部及び下降指令部と、中間部検出手段の有効／無効を切り替える切替スイッチとを有する制御手段を設け、制御手段は、下降指令部からの下降指令は、中間部検出手段の状態及び切替スイッチの切替状態に関係なくロッド駆動装置を下降させ、上昇指令部からの上昇指令は、中間部検出手段がロッド駆動装置の非検出状態では切替スイッチの切替状態に関係なくロッド駆動装置を上昇させ、中間部検出手段がロッド駆動装置の検出状態かつ切替スイッチが有効状態のときにはロッド駆動装置を停止させ、切替スイッチが無効状態のときには中間部検出手段の検出状態に関係なくロッド駆動装置を上昇させる。【選択図】 図１
GROUND IMPROVEMENT MACHINE
地盤改良機
NASU HIDEAKI (Autor:in)
28.12.2016
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
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Gründungen