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1. 发明专利

JP2000328577A SOIL RETAINING CAGE FRAME AND METHOD OF BUILDING STEEP GRADE BANKING USING THE CAGE FRAME 失效
公开(公告)号：JP2000328577A
公开(公告)日：2000-11-28
申请号：JP14337399
申请日：1999-05-24
申请人： SUMITOMO METAL STEEL PROD , MITSUI SEKIKA SANSHI KK
发明人： HIRAYAMA TOMOYOSHI , HATAE SHUNICHI , NISHIMURA ATSUSHI
IPC分类号： E02D17/20 , E02D17/18
摘要： PROBLEM TO BE SOLVED: To stably fix a cage frame forming a slope of steep grade banking on a ground and also easily performing the fixing. SOLUTION: A sheet-shaped reinforcing material is locked to the bottom surface of an L-shaped front net body A formed of a bottom part and a front surface part using the mesh spaces of the reinforcement material and the hook- shaped engagement part of the front net body A, and laid down at the rearward from the rear end part of the cage frame where the rear end part of the reinforcement material is formed of the net bodies A and B extensively to a position at least 0.5 times the depth of the cage frame. In addition, a small hole-shaped engagement part for the L-shaped rear part net body B formed of the bottom part and a rear surface part is erectedly engaged, on the reinforcement material, with the hook-shaped engagement part of the front part net body A, and an end part net plate is installed at both ends of the side surfaces. Soil and sand are filled in the soil retaining cage frame to form a slope, and soil and sand are built up to that height to build a first stage of banking with buried reinforcement material. This operation is repeated in order so as to build a multiple stage banking.

2. 发明专利

JP2002292432A MANUFACTURING METHOD FOR STEPPED PIPE 失效
公开(公告)号：JP2002292432A
公开(公告)日：2002-10-08
申请号：JP2001095995
申请日：2001-03-29
申请人： SUMITOMO METAL STEEL PROD
发明人： ASAO TADAMICHI , MORIBE KENJI , HIRAYAMA TOMOYOSHI
IPC分类号： B21C37/18 , B21D22/14 , B21D51/16
摘要： PROBLEM TO BE SOLVED: To manufacture a stepped pipe provided with a local step without welding and inexpensively, and make it possible to manufacture a stepped pipe with various shapes with one manufacturing device. SOLUTION: A plurality of forming rollers 1 are arranged on the outer periphery of a raw pipe Po , the forming roller 1 is moved forth and back in the radial direction of the pipe against the rotating raw pipe Po , the forming roller 1 and the raw pipe Po are relatively moved in the axial direction of the pipe, by using a spinning work machine for applying tape processing to the raw pipe, the forwarding moving speed (diameter contraction speed) of the forming roller 1 or the relative moving speed of the raw pipe Po is adjusted, e.g. on the way of the continuous diameter contraction work (straight work or taper work), and the inclination in the axial direction of the pipe is changed to obtain the stepped pipe integrally and continuously formed with a tapered step or a straight step on the local part of a straight pipe or a tapered pipe.

3. 发明专利

JP2000320287A EARTH RETAINING STRUCTURE OF RECTANGULAR SHAFT MAKING USE OF LINER PLATE 失效
公开(公告)号：JP2000320287A
公开(公告)日：2000-11-21
申请号：JP12943999
申请日：1999-05-11
申请人： NIPPON STEEL METAL PROD , KAWASAKI STEEL METAL PRODUCTS , SUMITOMO METAL STEEL PROD , NIPPON KOKAN LIGHT STEEL KK
发明人： MORITA AKIHIRO , ISHIKAWA HIDEYA , MICHIHIRO TAKESHI , HATAE SHUNICHI , HIRAYAMA TOMOYOSHI , MORIMOTO ATSUO
IPC分类号： E02D17/08 , E21D5/06
摘要： PROBLEM TO BE SOLVED: To solve a problem of the deformation of an earth retaining wall of a rectangular shaft making use of liner plates to the inside thereof by earth pressure without increasing any reinforcing member. SOLUTION: Linear liner plates 2 with grooves in a corrugated steel plate section are arranged upward and downward, and both up and down ends of each of the liner plates 2 are supported by reinforcing members 3. Flanges adjacent to both right and left of each of the liner plates 2 are connected to each other with bolts, if necessary. The length of the lower liner plate 2 is shortened in comparison with the upper part of a shaft, and it is favorable that an interval between the reinforcing members 3 is narrowed.

4. 发明专利

JP2002292433A SPINNING METHOD FOR PIPE AND SPINNING MACHINE 失效
公开(公告)号：JP2002292433A
公开(公告)日：2002-10-08
申请号：JP2001095996
申请日：2001-03-29
申请人： SUMITOMO METAL STEEL PROD
发明人： ASAO TADAMICHI , MORIBE KENJI , HIRAYAMA TOMOYOSHI
IPC分类号： B21C37/18 , B21D3/14 , B21D22/14
摘要： PROBLEM TO BE SOLVED: To eliminate a spiral-shaped unevenness of a machined mark caused by forming rollers, without applying modification to the forming rollers, without decreasing the production efficiency, easily and surely, and surely eliminate the spiral-shaped unevenness even if the taper factor is changed. SOLUTION: In the spinning method for applying the taper machining, etc., to a raw pipe by arranging a plurality of the forming rollers 1 on the outer periphery of the raw pipe Po , the forming rollers 1 are moved forth and back in the radial direction of the pipe, the forming rollers 1 and the raw pipe Po are relatively moved in the axial direction of the pipe, and the taper machining, etc., are applied to the raw pipe, a presser rollers 10 are provided on the latter stage of the forming rollers 1, and the spiral-shaped unevenness formed on the pipe surface by the shoulder part 1a of the forming roller is eliminated by pressure on the outer peripheral face of the presser rollers 10. The presser rollers 10 are made to be approximately a truncated cone-shape, a bowl-shape, etc., having an outline of a smooth arc along the axial direction of the pipe to eliminate the spiral-shaped unevenness even if the taper factor is changed.

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