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1. 发明专利

JPH0932024A HANDHOLD 失效
公开(公告)号：JPH0932024A
公开(公告)日：1997-02-04
申请号：JP20835595
申请日：1995-07-24
申请人： NIPPON STEEL CORP , NIPPON STEEL METAL PROD
发明人： HAGAMIDA HIROAKI , YANAGIMOTO HAYAO , KIMURA TETSUO , TONYA JIYUNJI , TOMITA MASANORI , MIYATA TSUTOMU
IPC分类号： E02D29/12 , E03F5/02
摘要： PROBLEM TO BE SOLVED: To facilitate a work by welding a cable path pipe retaining seat with a flange, which can accommodate a cable path pipe through the intermediary of a water stop member, to an opening in a side face of a hand hole, and an upper cover with a flange is attached to the cable path pipe retaining seat. SOLUTION: Openings 13 are formed in two side surfaces of a hand hole 10, and a cable path pipe retaining seat 16 is welded to the outer peripheral edge of each opening 13. The hand hole 10 is set on cobble stones laid on an embedding part 3 formed be excavation. Next, power and communication cables laid in an excavated groove are connected to an electrical pipe 22 having one end connected to the hand hole 10 and attached with a sealing member 23. Thereafter, the cable path pipe 22 is lowered, one end part thereof being set on the electrical path pipe retaining seat 16, and a flange 17 of an upper cover 18 is set on a flange 15 of the retaining seat 16, bolt through holes in the flange 17 are aligned with bolt holes in the flange 15, and then bolts 24 are fastened so as to connect the cable path pipe 22 is connected to the hand hole 10. Further, the cover 25 is fitted in the hand hole 10.

2. 发明专利

JPS579527A MANUFACTURE OF SQUARE-SHAPED SEAM WELDED METALLIC TUBE 失效
公开(公告)号：JPS579527A
公开(公告)日：1982-01-19
申请号：JP8445280
申请日：1980-06-21
申请人： NIPPON STEEL CORP , NIPPON STEEL METAL PROD
发明人： OGAWA SEIICHIROU , AKAHORI AKIO , ONDA HIROTAKU , MIYATA TSUTOMU , HAGA HIROTSUGU , AOKI KAZUO
IPC分类号： B21C37/15
摘要： PURPOSE:To prevent an edge from lapping during welding by setting up a butting angle of upward side faces and performing welding under the pressure of upper and lower rolls and right and left rolls. CONSTITUTION:A blank material 5, which is corner-bended in the processes up to a fin-path-roll 9 to form into an open section of roughly square-shaped, is sent to welding roll 10 in the next position. The material 5 is pressed from the periphery by the welding roll 10, 15, whereby, since for the roll 15 a caliber of welding rolls having a prescribed butting angle theta on upward faces composed of upper rolls 15a and 15b is used, therefore edges of upper side faces 21 and 22 make a weld juncture 11 without occurrence of overlaps and flaps. A square-shaped metallic tube 12 having the juncture 11 on its upward face is adjusted its sectional shape and its longitudinal shape through a Turk's head roll 13 for leveling, then, it is cut in a required length, thereby the product is made.

3. 发明专利

JP2003119726A WAVE ABSORBING PANEL AND SIDE WALL FOR ROAD 审中-公开
公开(公告)号：JP2003119726A
公开(公告)日：2003-04-23
申请号：JP2001311527
申请日：2001-10-09
申请人： KANTO KOSEN KK , NIPPON STEEL METAL PROD
发明人： MASUDA YUICHI , YOSHIZAWA MASAHITO , MIKI MAKOTO , MIYATA TSUTOMU
IPC分类号： E01F8/00 , E01F8/02 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide a wave absorbing panel capable of sufficiently improving sound-absorbing performance, maintaining high wave-absorbing performance. SOLUTION: The wave absorbing panel 10 has a wave absorbing layer 7, a sound-absorbing layer 8 oppositely arranged to the layer 7 and a wave reflector 6 installed on the reverse side to the layer 8 to the layer 7. When a sound and a radio wave are projected to the layer 8 in this case, the sound is absorbed by the layer 8, and the radio wave passing through the layer 8 is projected to the layer 7. The radio wave passing through the layer 7 and being emitted is reflected by the reflector 6 and absorbed again by the layer 7. Since the wave absorbing panel 10 has the layer 8 and the layer 7 respectively in this case, sufficient sound-absorbing qualities can be obtained by optimizing a sound- absorbing material, a thickness or the like in the layer 8, and sufficient wave absorbing performance can be acquired by optimizing a wave-absorbing material, the thickness or the like even in the layer 7.

4. 发明专利

JPH0687019A FORMING DIE OF SQUARE TUBE FOR CONNECTING PART OF SQUARE STEEL TUBE PILLAR 失效
公开(公告)号：JPH0687019A
公开(公告)日：1994-03-29
申请号：JP26550492
申请日：1992-09-08
申请人： NIPPON STEEL METAL PROD
发明人： AKAHORI AKIO , MIYATA TSUTOMU
IPC分类号： B21C37/15 , B21C37/18 , B21D37/14
摘要： PURPOSE:To form different kinds of drawn square tubes by changing a part of components. CONSTITUTION:The male die 12 of a forming die 11 has a male main body 14 in a truncated square conical shape and a supporting plate 15 on which the male die is mounted and fixed. The male die main body 14 has a horizontal bottom surface 14. A supporting plate 15 has a square bottom surface 14a, an upper surface 15a of the same shape and a peripheral inclined overhang part 15b which is detachable. A female die 13 has an inner surface 21a in the truncated square conical shape corresponding to the male die main body 14. For example, when a three-face drawn square tube is formed of material for the three-face drawn square tube being the angular steel tube in which both end faces inclinet at a specified angle is put on the male die 12, the material for the three-face drawn square tube is set vertically. When the female die 13 is lowered, it is drawn by the pressure and the three-face drawn square tube is obtained. When the support plate 15 is exchanged, a two-face drawn tube or four-face drawn square tube can be formed.

5. 发明专利

JPH047296A ROLL LIFTING GEAR, ROLL LIFTING METHOD AND ROLL RECOMPOSING METHOD 失效
公开(公告)号：JPH047296A
公开(公告)日：1992-01-10
申请号：JP11140190
申请日：1990-04-26
申请人： NIPPON STEEL METAL PROD
发明人： ONO EIJI , TAKADABASHI TOSHIO , IMAZONO KOJI , NAKAKAWAJI SHIGEMI , AKAHORI AKIO , MIYATA TSUTOMU
IPC分类号： B66C1/10 , B21B31/12 , B21C47/24 , B66C1/66 , B66D3/20
摘要： PURPOSE:To raise efficiency of roll recomposition by engaging the fork portion of a lifting jig holder on a hooking block as the fork portion is raised in parallel to the connection rod of roll gear. CONSTITUTION:A lifting jig 44 and a holder 49 is lowered by operating a hoist 40 so as to fit the connection rod 29 of a roll gear 20 to a 'U' shape groove on the fork portion 50a of the holder 49 and then, by raising the lifting jig 44, the fork portion 50a of the holder 49 comes in contact with a hooking block 33 as the fork portion 50a rises by the guidance of the connection rod 29. by further raising the lifting jig 44, an upper chock 25 and an upper roll 23 are lifted and, by continuously raising the lifting jig 44, a lower roll 26 is raised together with a lower chock 28 as a dropping out stay member provided at the end of the connection rod 29 comes in contact with the hooking block 33 of the lower chock 28 and thus the upper and the lower rolls 23, 26 are raised in one unit. The roll 23, 26 recomposition thereby can be made efficient.

6. 发明专利

JPH07214151A DEVICE FOR MANUFACTURING TAPERED SQUARE PIPE AND METHOD THEREOF 失效
公开(公告)号：JPH07214151A
公开(公告)日：1995-08-15
申请号：JP2747494
申请日：1994-01-31
申请人： NIPPON STEEL METAL PROD
发明人： AKAHORI AKIO , MIYATA TSUTOMU , TOMITA MASANORI
IPC分类号： B21C37/18 , B21D22/26 , B21D22/28 , B21D51/16 , B21K21/08
摘要： PURPOSE:To easily and efficiently execute the knock-out. CONSTITUTION:A square pipe stock 1a is deep-drawn with a truncated square conical male die 8 and a female die corresponding to this male die to manufacture a tapered square pipe 1. One pair of stoppers 9 faced to the upper part of the male die 8 are arranged so as to be slidably in the horizontal direction. The stopper 9 is energized to the outer part of the male die 8 with a spring 13 and projecting from the outer peripheral surface of the male die 8 in the ordinary condition. When the female die descended at the time of squeezing, the inclined inner surface of the female die is brought into contact with the tip of each stopper 9, and each stopper 9 is shifted to the center direction of the male die 8 by the component of force in the horizontal direction. At the time of executing the squeezing formation, as ordinarily the tapered square pipe 1 is press-stuck to the inner surface of the female die, at the time of using the female die, the tapered square pipe 1 ascend together with the female die, but the ascending is stopped by hitting to the stopper 9, and the tapered square pipe is separated from the inner surface of the female die. In such a way, the knock-out is automatically executed in the press movement without needing a special process for knock-out.

7. 发明专利

JPH07155832A PRODUCTION APPARATUS OF TAPERED SQUARE TUBE 失效
公开(公告)号：JPH07155832A
公开(公告)日：1995-06-20
申请号：JP32628993
申请日：1993-11-30
申请人： NIPPON STEEL METAL PROD
发明人： AKAHORI AKIO , KONO TAKEO , MIYATA TSUTOMU , TOMITA MASANORI
IPC分类号： B21C37/15 , B21C37/18 , B21D22/26 , B21D24/16
摘要： PURPOSE:To easily knockout when a tapered square tube is drawn. CONSTITUTION:The tapered square tube 4 is obtained by drawing a base stock square tube by a male die 16 and a female die 19 with the initial pressing of a ram 20. At that time, the tapered square tube 4 is brought into press- contact with the inside surface 19a of female die 19, an upper bolster 25 is inserted between the lower surface of ram 20 and the upper surface of a knockout block 22 and a lower bolster 23 is inserted in the lower part of female die 19 before the second pressing of ram 20. When the ram 20 is lowered, lowering of female die 19 is stopped by the lower bolster 23, the knockout block 22 is directly applied with the main pressurizing force of ram 20 with the upper bolster 25 and the tapered square tube 4 which is in press-contact with the inside surface 19a of female die 19 is knocked out by push-lowered. Since strong main pressurizing force of a press machine is utilised, knockout work is smoothly carried out.

8. 发明专利

JPH0724531A DEVICE FOR RECOMBINATION OF STANDBY ROLL 失效
公开(公告)号：JPH0724531A
公开(公告)日：1995-01-27
申请号：JP19519593
申请日：1993-07-12
申请人： NIPPON STEEL METAL PROD
发明人： TAKANO NORIKAZU , MIYATA TSUTOMU
IPC分类号： B21D5/08
摘要： PURPOSE:To improve efficiency for recombination of standby rolls and to save a time for recombining rolls on the line. CONSTITUTION:An intermediate stand 121 by which roll stands 12 and 13 and universal joint 120 are supported is provided on a sole plate 11. The sole plate is attachable/detachable on the bed of forming machine. The roll stands 12 and 13, intermediate stand 121 and universal joint 120 are carried altogether with the sole plate 11 and the rolls are recombined. The working side stand 13 is taken out from the sole plate 11 by a working side stand attaching/ detaching device 51. A spacer integrated roll 29 is taken out from or mounted on roll shafts 21 and 22 by a roll attaching/detaching robot 65 which is moved between the sole plate 11 and the working side stand attaching/detaching device 51. Though the roll shafts 21 and 22 are in cantilever state, they are inclined very little because of weight of connected universal joint 120 and the roll attaching/detaching robot 65 is not affected by the shafts 21 and 22 during operation.

9. 发明专利

JPH03138022A ROLL FORMING DEVICE 失效
公开(公告)号：JPH03138022A
公开(公告)日：1991-06-12
申请号：JP27570189
申请日：1989-10-23
申请人： NIPPON STEEL METAL PROD
发明人： KINOSHITA HARUMI , MIYATA TSUTOMU
IPC分类号： B21D5/08
摘要： PURPOSE:To deal with the sectional shape and size of various formed goods by moving and adjusting a roll holder with which flat rolls and a side roll are supported. CONSTITUTION:Roll holders 32, 33, 34 are long back and forth in the forming direction and their front end part and rear end part are supported with a upper cross beam 22 or a lower cross beam 21 and support the flat rolls 26, 27, 28 and side rolls 25 at their intermediate part. Therefore, interferences between the flat rolls 26, 27, 28 or the side rolls 25 and the cross beams 21, 22 can be easily avoided. Thus the heights H from the centers of the flat rolls 26, 27, 28 or the side rolls 25 to the supporting point S on the cross beam sides of a forming load can be adequatly made small. As the result, bending moment due to the forming directional component of the forming load that is applied to the roll holder 32 can be reduced.

10. 发明专利

JPS57199524A FORMING METHOD FOR LIGHTWEIGHT SHAPE STEEL 失效
公开(公告)号：JPS57199524A
公开(公告)日：1982-12-07
申请号：JP8246681
申请日：1981-06-01
申请人： NIPPON STEEL METAL PROD
发明人： ONDA HIROTAKU , MIYATA TSUTOMU , OGISO TSUTOMU , MIZUIWA KENICHI
IPC分类号： B21B1/08 , B21B1/095 , B21D5/08 , B21D5/14
摘要： PURPOSE:To form a band steel plate to a desired sectional shape by one pass, by passing the band steel plate through the inside of a caliber formed by one upper roll, plural lower rolls and a shoe whose bending angle is varied. CONSTITUTION:When a band steel plate of a material is passed through a molding device, the band steel plate 8 is pressed down by an upper roll in a caliber constituted of a bending surface 9 of a shoe 7, and a lower roll 5, while it passes through from the first lower roll 5 to the final lower roll 5, and a bending angle of the flange part becomes large continuously. In the caliber of the final lower roll 5, the flange part is bent to right angles, and lightweight shape steel is obtained. Subsequently, between each lower roll, the material band steel plate goes forward while being hold-bundled by the bending surface 9 of the shoe.

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