公开(公告)号：US4818148A

公开(公告)日：1989-04-04

申请号：US164967

申请日：1988-03-07

申请人： Takashi Takeda ,  Katsumi Omori ,  Toshiyuki Ohkuma ,  Kenji Kidera ,  Shigeru Nakagawa ,  Tetsuzo Hirose

发明人： Takashi Takeda ,  Katsumi Omori ,  Toshiyuki Ohkuma ,  Kenji Kidera ,  Shigeru Nakagawa ,  Tetsuzo Hirose

IPC分类号： E02D5/60

CPC分类号： E02D5/60

摘要： A covering is applied onto the outer surface of a pile including a steel pipe or the like to surround a predetermined length thereof so as to reduce a frost heaving force or negative friction acting on the pile in a frigid area. The covering is closely adhered by an adhesion layer the like to the pile over a given length thereof. This given length is between 0.5 and 5 m. The covering member includes a smooth-surfaced plastic covering or elastic covering. A rugged surface covering may be provided below the smooth surfaced covering.

摘要翻译： 将覆盖物施加到包括钢管等的桩的外表面上以围绕其预定长度，以便减少在寒冷地区中作用在桩上的霜冻力或负摩擦力。 覆盖层在其给定长度上通过粘合层紧密地粘附到桩上。 该给定长度在0.5和5米之间。 覆盖构件包括光滑表面的塑料覆盖物或弹性覆盖物。 可以在光滑的表面覆盖物的下方提供粗糙的表面覆盖物。

公开(公告)号：US4159039A

公开(公告)日：1979-06-26

申请号：US902428

申请日：1978-05-03

申请人： Masami Kasuga ,  Tetsuzo Hirose ,  Tsunematsu Yoshida ,  Toshio Shinohara

发明人： Masami Kasuga ,  Tetsuzo Hirose ,  Tsunematsu Yoshida ,  Toshio Shinohara

IPC分类号： E02D11/00 ,  B25D9/00

CPC分类号： E02D11/00

摘要： The invention is to drive an article into an object or extract it therefrom by means of strain energy.The article is provided at its top with an elastic part having a reaction material for giving a tensile strain or a compressive strain to the elastic part via the reaction material in order to accumulate the strain energy in the elastic part.For carrying out the driving operation, the strain energy is abruptly released from the top of the elastic part, otherwise the compressive strain is abruptly released from the bottom of the elastic part. The strain energy is transformed into a kinetic energy and the article is struck on its head by this kinetic energy so that a compressive strain wave is generated in the article being driven.For carrying out the extracting operation, the compressive strain is abruptly released from the top of the elastic part, otherwise the tensile strain is abruptly released from the bottom of the elastic part. The strain energy is transformed into the kinetic energy and the elastic part having received this kinetic energy gives the impact force to the driven article in the extracting direction.

摘要翻译： 本发明是通过应变能将物品推入物体或从其中提取物品。