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1. 发明专利

JP2010131610A Pipe bending auxiliary tool 审中-公开
标题翻译：管道弯曲辅助工具
公开(公告)号：JP2010131610A
公开(公告)日：2010-06-17
申请号：JP2008308072
申请日：2008-12-03
申请人： Yoshiharu Itayama , 好春板山
发明人： ITAYAMA YOSHIHARU
IPC分类号： B21D9/01
摘要： PROBLEM TO BE SOLVED: To provide a pipe bending auxiliary tool capable of preventing occurrence of wrinkles on the inner side when bending a cylindrical pipe, and holding of a pipe bending member on the inner side of bending, improving the friction with a pipe inner surface during the bending work, and smoothly peeling a cylindrical elastic material from an inner surface of the bent pipe.
SOLUTION: The pipe bending auxiliary tool inserts a cylindrical elastic material 1, which is expandable and contractible in the radial direction, into the inner surface of a pipe to be bent, and inflates the material so as to be tightly attached thereto. Any abrasion damage caused by the friction between the cylindrical elastic material and the inner wall of the pipe which are tightly attached to each other by bending the pipe can be reduced. After bending the pipe, the cylindrical elastic material is contracted, a supporting rod 6 connected to a flexible member 5 is axially moved to move the cylindrical elastic body 1 in the axial direction, and the cylindrical elastic material 1 is smoothly peeled from the inner surface of the bent pipe.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种能够在弯曲圆筒形管时能够防止内侧发生皱纹的管道弯曲辅助工具，并且在弯曲内侧保持管弯曲构件，从而改善与弯曲加工时的管内表面，从弯曲管的内表面平滑地剥离圆筒形弹性材料。
解决方案：弯管辅助工具将圆柱形弹性材料1沿径向可伸缩地插入待弯曲的管的内表面，并使材料充气以紧紧附着在其上。可以减少通过弯曲管道将圆柱形弹性材料和管内壁之间的摩擦力彼此紧密连接的任何磨损损伤。在弯曲管之后，圆筒形弹性材料收缩，连接到柔性构件5的支撑杆6被轴向移动以使圆柱形弹性体1沿轴向移动，并且圆柱形弹性材料1从内表面平滑地剥离的弯管。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2005224850A Mandrel 审中-公开
标题翻译： MANDREL
公开(公告)号：JP2005224850A
公开(公告)日：2005-08-25
申请号：JP2004037948
申请日：2004-02-16
申请人： Tama Tlo Kk , タマティーエルオー株式会社
发明人： SAITO HIROMI , FUJII NORIMASA , MORI YOSHIFUMI , FUKUOKA SHINGORO , ICHIYANAGI TAKESHI
IPC分类号： B21D9/01 , B21D9/03
摘要： PROBLEM TO BE SOLVED: To provide a mandrel which does not produce wrinkling or cross-sectional deformation during a bending process.
SOLUTION: In the push bending of a hollow shape 51, the mandrel 55 is placed inside the hollow shape 51 in a bending area. The mandrel is composed of a resin plate (mandrel means) 61 of which the outer circumferential face can contact the inner circumferential face of the hollow shape owing to elastic deformation, a bolt 67 which elastically deforms the outer circumferential face of the resin plate 61 in the inner circumferential face of the hollow shape, a rod 53, a first pinching plate 63, a second pinching plate 65 and a metal plate 59 (drive means).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种在弯曲过程中不产生褶皱或横截面变形的心轴。解决方案：在中空形状51的推动弯曲中，心轴55在弯曲区域内放置在中空形状51的内部。心轴由弹性变形而使外周面与中空形状的内周面接触的树脂板（心轴装置）61，使树脂板61的外周面弹性变形的螺栓67 中空形状的内周面，杆53，第一夹持板63，第二夹持板65和金属板59（驱动装置）。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP3625154B2 Pipe bending method 有权
公开(公告)号：JP3625154B2
公开(公告)日：2005-03-02
申请号：JP19474299
申请日：1999-07-08
申请人：本田技研工業株式会社
发明人：厚生粕谷
IPC分类号： B21D9/01
CPC分类号： B21D9/01

4. 发明专利

JP2000335334A MANUFACTURE OF BUMPER BEAM FOR VEHICLE 失效
公开(公告)号：JP2000335334A
公开(公告)日：2000-12-05
申请号：JP14654999
申请日：1999-05-26
申请人： TOKAI RUBBER IND LTD , SHOWA ALUMINUM CORP
发明人： MAENO HAJIME , KATO RENTARO , KOKUBO SADAO , NISHIKAWA NAOKI
IPC分类号： B60R19/04 , B21D9/01
摘要： PROBLEM TO BE SOLVED: To increase the degree of freedom of the fitting and arranging position of an elastic foam, and to improve the workability. SOLUTION: This bumper beam manufacturing method comprises an arranging process for inserting and arranging an elastic foam 2 consisting of a foamed hard urethane foam in a center part of a center isolated chamber 13 (an internal space) of a beam body 1 formed prismatic by an aluminum alloy extruded member, and a bending process for holding and fixing the elastic foam 2 in an internal space of the beam body 1 by achieving the bending so that the whole beam body 1 is bent in a circular shape together with the elastic foam 2.

5. 发明专利

JPH1094835A METHOD FOR BENDING TUBE AND CORE MATERIAL TO BE USED FOR ITS EXECUTION 失效
公开(公告)号：JPH1094835A
公开(公告)日：1998-04-14
申请号：JP25028396
申请日：1996-09-20
申请人： OKAMURA CORP
发明人： YOKOO SATORU
IPC分类号： B21D9/01 , B21D9/15
摘要： PROBLEM TO BE SOLVED: To bend the tube by a simple method without crushing a bending part. SOLUTION: The core material 1 consisting of flexible synthetic resin such as polyolefine resin, nylon resin, etc., which has at least a pair of abutting parts 4 extending in the longitudinal direction and on which recessed parts 9 are provided on both sides of the abutting part 4, is inserted so that the abutting parts 4 are abutted on a face on the bending direction side in the inside surface of the tube 5 and a face opposed to the face respectively in the bending part of the tube 5. After that, the tube 5 is bent in the above direction.

6. 发明专利

JPH0235610B2 失效
公开(公告)号：JPH0235610B2
公开(公告)日：1990-08-13
申请号：JP23470883
申请日：1983-12-12
申请人： TOKAI RIKA CO LTD
发明人： HATSUTORI ICHIRO , ANDO HISAHIRO
IPC分类号： B21D9/01

7. 发明专利

JPH0241228A BENDING JIG FOR PIPE 失效
公开(公告)号：JPH0241228A
公开(公告)日：1990-02-09
申请号：JP19091788
申请日：1988-07-30
申请人： MIZOGAMI KAZUAKI
发明人： MIZOGAMI KAZUAKI
IPC分类号： B21D7/00 , B21D9/01 , B29C53/08
摘要： PURPOSE:To safely and simply bend a pipe by inserting a rod having substantially the same size as the inner diameter of a pipe inside the pipe to be bent, bending it at a predetermined angle, and then extracting it while holding a bent state. CONSTITUTION:A bending jig 3 is formed of a flexible rod covered on its out side with fluororesin, and with substantially the same size as the inner diameter of a pipe 7 to be bent at the outer diameter. The pipe 7 is extracted by the jig 3 in the state that the pipe 7 is bent at a predetermined angle in the state that the part of the jig 3 is inserted into the pipe 7. Thus, the pipe can be bent with a small roundness in a U-shape safely and easily.

8. 发明专利

JPH01299716A BENDING TOOL FOR TUBE 失效
公开(公告)号：JPH01299716A
公开(公告)日：1989-12-04
申请号：JP13071388
申请日：1988-05-27
申请人： INBA DENKI SANGYO KK
发明人： DEGUCHI TAKESHI
IPC分类号： B21D9/01
摘要： PURPOSE:To bend a tube without breaking the external peripheral part of the tube by coiling a wire for shape memory alloy of a specified sectional shape having extra elasticity to form a cylindrical body. CONSTITUTION:A wire 1 forming a cylindrical body 2 is made up of the shape memory alloy having extra elasticity, and the sectional shape of the wire 1 is formed to take such a shape that a second moment of area to the bending external force in the diametrical direction of the cylindrical body 2 is larger than a second moment of area to the bending external force in the longitudinal direction of the cylindrical body 2. For that purpose, when the cylindrical body 2 is inserted into the tube 3 to be worked so that the external peripheral part of the tube 3 to be worked is not broken, though the peripheral part of the cylindrical body 2 is pressed by the tube 3, the cylindrical body 2 can be taken out easily by putting its end part only without causing any plastic deformation while it is extended and then returns to the original cylindrical body 2. Further, though the wire 1 has the extra elasticity because it has a specified sectional shape, the holding and supporting force from the inside of the pipe can be strengthened to the deforming force in the direction given to the tube when the tube 3 is bent.

9. 实用新型

JPS646993Y2 失效
公开(公告)号：JPS646993Y2
公开(公告)日：1989-02-23
申请号：JP14255882
申请日：1982-09-22
IPC分类号： B21D9/00 , B21D9/01 , B21D9/03 , B21D9/04

10. 发明专利

JPS6344448B2 失效
公开(公告)号：JPS6344448B2
公开(公告)日：1988-09-05
申请号：JP20446685
申请日：1985-09-18
申请人： KURASHIKI MACHINERY
发明人： TERAI SHINTARO
IPC分类号： B21D7/08 , B21D5/08 , B21D5/12 , B21D9/01

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