A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
HOLE DRILLING DEVICE
PROBLEM TO BE SOLVED: To make it possible to determine existence of an obstacle even if a cylindrical core bit is used.SOLUTION: A hole drilling device 1 comprises: a cylindrical body 24 which has a hollow and further has an opening, which is communicated with the hollow, at one end; plural bits 25 which are provided at one end of the cylindrical body 24 and are arranged along an edge of the opening with clearances therebetween; a spindle motor 21 which rotates the cylindrical body 24 around an axis thereof; a feeding machine 3 which feeds the cylindrical body 24 in the axial direction thereof; and a control unit 40 which controls the spindle motor 21. The control unit 40 monitors a load of the spindle motor 21, and stops the spindle motor 21 when a degree of change of the load exceeds a specified value.SELECTED DRAWING: Figure 3
【課題】円筒状のコアビットを用いた場合でも、障害物の存在を判断できるようにする。【解決手段】削孔装置１は、中空を有するとともにその中空に通じる開口を一端に有する円筒体２４と、円筒体２４の一端に設けられ、間隔を置いて開口の縁に沿って配列された複数のビット２５と、円筒体２４をその軸周りに回転させるスピンドルモーター２１と、円筒体２４をその軸方向に送る送り機３と、スピンドルモーター２１を制御する制御ユニット４０と、を備え、制御ユニット４０が、スピンドルモーター２１の負荷を監視して、その負荷の変化度合が所定値を超えた場合にスピンドルモーター２１を停止させる。【選択図】図３
HOLE DRILLING DEVICE
PROBLEM TO BE SOLVED: To make it possible to determine existence of an obstacle even if a cylindrical core bit is used.SOLUTION: A hole drilling device 1 comprises: a cylindrical body 24 which has a hollow and further has an opening, which is communicated with the hollow, at one end; plural bits 25 which are provided at one end of the cylindrical body 24 and are arranged along an edge of the opening with clearances therebetween; a spindle motor 21 which rotates the cylindrical body 24 around an axis thereof; a feeding machine 3 which feeds the cylindrical body 24 in the axial direction thereof; and a control unit 40 which controls the spindle motor 21. The control unit 40 monitors a load of the spindle motor 21, and stops the spindle motor 21 when a degree of change of the load exceeds a specified value.SELECTED DRAWING: Figure 3
【課題】円筒状のコアビットを用いた場合でも、障害物の存在を判断できるようにする。【解決手段】削孔装置１は、中空を有するとともにその中空に通じる開口を一端に有する円筒体２４と、円筒体２４の一端に設けられ、間隔を置いて開口の縁に沿って配列された複数のビット２５と、円筒体２４をその軸周りに回転させるスピンドルモーター２１と、円筒体２４をその軸方向に送る送り機３と、スピンドルモーター２１を制御する制御ユニット４０と、を備え、制御ユニット４０が、スピンドルモーター２１の負荷を監視して、その負荷の変化度合が所定値を超えた場合にスピンドルモーター２１を停止させる。【選択図】図３
HOLE DRILLING DEVICE
削孔装置
SAWA KOICHIRO (author) / DOI AKIRA (author) / NUMAZAKI TAKAYOSHI (author)
2017-01-26
Patent
Electronic Resource
Japanese
HOLE DRILLING METHOD, HOLE DRILLING DEVICE AND CONCRETE SLAB CUTTING METHOD
| European Patent Office | 2022
HOLE DRILLING DEVICE, HOLE DRILLING METHOD AND METHOD FOR INSTALLING ANCHOR MATERIAL
| European Patent Office | 2018