Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
STEEL PIPE CUTTING DEVICE
PROBLEM TO BE SOLVED: To provide a steel pipe cutting device which eliminates the need for a hanging means, is inexpensive, capable of cutting a small-diameter steel pipe, and which can easily bring a steel pipe cutting means into contact with the inside of a steel pipe even when the position at which the steel pipe is cut is away from the pipe end.SOLUTION: A steel pipe cutting device 1 comprises an annular member 10 attached to an upper end 101 of a steel pipe 100, a rotary member 20 attached to the annular member 10 so as to rotate on the annular member 10, a shaft member 30 fitted to the rotary member 20 in a state of being at least partially inserted into the steel pipe 100, and steel pipe cutting means 40 fitted to an end 31D of a portion 31 of the shaft member 30 that is to be inserted into the steel pipe. The portion 31 of the shaft member 30 to be inserted into the steel pipe is bent through at least one shaft part 32A and is configured to maintain the bent state.
【課題】吊下げ手段が不要で安価であり、小径鋼管の切断が可能で、鋼管切断位置が管端から離れていても鋼管切断手段を容易に鋼管内部に当接することができる鋼管切断装置を提供する。【解決手段】鋼管切断装置１は、鋼管１００の上端部１０１に取り付けられる環状部材１０と、環状部材１０上で旋回するように環状部材１０に取り付けられる旋回部材２０と、少なくとも一部が鋼管１００内に挿入される状態で旋回部材２０に取り付けられる軸部材３０と、軸部材３０の鋼管内に挿入される部分３１の端部３１Ｄに取り付けられる鋼管切断手段４０と、を備える。軸部材３０の鋼管内に挿入される部分３１を、少なくとも一つの軸部３２Ａを介して折曲しかつその折曲状態を維持するように構成する。【選択図】図１
STEEL PIPE CUTTING DEVICE
PROBLEM TO BE SOLVED: To provide a steel pipe cutting device which eliminates the need for a hanging means, is inexpensive, capable of cutting a small-diameter steel pipe, and which can easily bring a steel pipe cutting means into contact with the inside of a steel pipe even when the position at which the steel pipe is cut is away from the pipe end.SOLUTION: A steel pipe cutting device 1 comprises an annular member 10 attached to an upper end 101 of a steel pipe 100, a rotary member 20 attached to the annular member 10 so as to rotate on the annular member 10, a shaft member 30 fitted to the rotary member 20 in a state of being at least partially inserted into the steel pipe 100, and steel pipe cutting means 40 fitted to an end 31D of a portion 31 of the shaft member 30 that is to be inserted into the steel pipe. The portion 31 of the shaft member 30 to be inserted into the steel pipe is bent through at least one shaft part 32A and is configured to maintain the bent state.
【課題】吊下げ手段が不要で安価であり、小径鋼管の切断が可能で、鋼管切断位置が管端から離れていても鋼管切断手段を容易に鋼管内部に当接することができる鋼管切断装置を提供する。【解決手段】鋼管切断装置１は、鋼管１００の上端部１０１に取り付けられる環状部材１０と、環状部材１０上で旋回するように環状部材１０に取り付けられる旋回部材２０と、少なくとも一部が鋼管１００内に挿入される状態で旋回部材２０に取り付けられる軸部材３０と、軸部材３０の鋼管内に挿入される部分３１の端部３１Ｄに取り付けられる鋼管切断手段４０と、を備える。軸部材３０の鋼管内に挿入される部分３１を、少なくとも一つの軸部３２Ａを介して折曲しかつその折曲状態を維持するように構成する。【選択図】図１
STEEL PIPE CUTTING DEVICE
鋼管切断装置
IWAMOTO HIROSHI (Autor:in) / NUMATA SHIGEMI (Autor:in) / NODA SHOJI (Autor:in) / ONODA HISASHI (Autor:in) / ISHIKAWA ATSUSHI (Autor:in)
21.01.2016
Patent
Elektronische Ressource
Japanisch
STEEL PIPE PILE CUTTING DEVICE AND STEEL PIPE PILE CUTTING METHOD
| Europäisches Patentamt | 2023