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71. 发明专利

JP2003260574A FRICTIONAL AGITATION BONDING METHOD FOR HOLLOW MATERIAL 审中-公开
公开(公告)号：JP2003260574A
公开(公告)日：2003-09-16
申请号：JP2002062237
申请日：2002-03-07
申请人： HITACHI LTD
发明人： NAKAMURA HIDEYUKI , MAKINO TOSHIAKI , SHIGEYAMA MASAAKI , SAGAWA TOSHIAKI
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To provide a frictional agitation bonding method improving productivity in frictional agitation bonding of a hollow-shaped material. SOLUTION: In the method, a first hollow material 10 and a second hollow material 20 are fixed on a working bed 30 with their ends confronted. A frictional agitation bonding tool 50 is a cylindrical rotating tool containing two work elements 51, 52. By directly applying the rotating tool 50 to the butt ends between the first hollow material 10 and the second hollow material 20 and shifting it in an orthogonal direction against the cross section shown in Fig. 2, these two butt ends can concurrently be frictional agitation bonded. COPYRIGHT: (C)2003,JPO

72. 发明专利

JP2003220475A HOLLOW MEMBER 审中-公开
公开(公告)号：JP2003220475A
公开(公告)日：2003-08-05
申请号：JP2002014483
申请日：2002-01-23
申请人： HITACHI LTD
发明人： NAKAMURA HIDEYUKI , MAKINO TOSHIAKI , SHIGEYAMA MASAAKI , SAGAWA TOSHIAKI
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To provide a two-face structural body having high strength and practicality. SOLUTION: Board thickness increase parts 14 (34) are provided in the inner faces of face boards 11 (31) of hollow members 10 (30). Board thickness increase parts 16 (36) are provided in the outer faces of the end parts of face boards 12 (32) and board thickness increase parts 15 (35) are provided in the inner faces thereof. Inclined faces 21 (41) are provided in the inner faces of the face boards 11 (31) on the far sides from the end parts of the face boards 11 (31) from connection parts of the face boards 11 (31) and connection boards 13A (33A). The board thickness increase parts 15, 16 (35, 36) and the face boards 12 (32) are connected with inclined faces 22, 23 (42, 43). The face boards 11, 31 and the face boards 12, 32 are butted to each other, and a friction stir welding is conducted. According to this, when the tensile load in the right angle direction acts on a join line to which the friction stir welding is applied, bending stress in the vicinity of a join part of the face boards 12, 32 is hardly generated, and the bending stress in the vicinity of a join part of the face boards 11, 31 is greatly reduced. COPYRIGHT: (C)2003,JPO

73. 发明专利

JP2002137071A STRUCTURE AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002137071A
公开(公告)日：2002-05-14
申请号：JP2001168272
申请日：2001-06-04
申请人： HITACHI LTD
发明人： NAKAMURA HIDEYUKI , KAWASAKI TAKESHI , MAKINO TOSHIAKI , SAGAWA TOSHIAKI
IPC分类号： E04C3/08 , B23K20/12 , B61D17/00
摘要： PROBLEM TO BE SOLVED: To provide a structure which has lightweight and high rigidity. SOLUTION: A hollow structural angle is constituted by joining between two face plates 11 and 12 (21 and 22) in a truss shape with ribs 13, 13A and 13B (23, 23A and 23B). The end part of one side of a hollow structural angle 10 is connected with the rib 13A which constitutes the truss. The face plate 21 of the other side of a hollow structural angle 20 is connected in the vicinity of the top of the truss in the hollow structural angle 10. The face plate of the hollow structural angle 10 is connected in the vicinity of the top of the truss in the other side of the hollow structural angle 20. Load at the time of friction stir welding is received with the ribs 13A and 13B (13A and 23B). This structure becomes lightweight and high rigidity due to truss-structure as a whole.

74. 发明专利

JP2002090042A REFRIGERATOR 失效
公开(公告)号：JP2002090042A
公开(公告)日：2002-03-27
申请号：JP2000279361
申请日：2000-09-14
申请人： HITACHI LTD
发明人： KUMAKURA HIDEO , FUNAYAMA ATSUKO , NAKAMURA HIDEYUKI
IPC分类号： F25D23/00 , A61L9/01
摘要： PROBLEM TO BE SOLVED: To obtain a refrigerator, in which a great amount of odorous components can be deodorized from cool air in circularity in the refrigerating chamber by a deodorizer of a simple construction and inexpensive price. SOLUTION: A chemically adsorptive deodorizing sheet 12 is provided in a suction path 11 in the downstream part of a return path of a cooler 8. Streams of cool air on the way back from refrigerating spaces merge into the path 11. The sheet 12 is formed by mixing hygroscopic fibers, which adsorbs and retains moisture, and deodorizing fibers, which decompose and deodorize odorous components. Deodorizing equipment 12 is installed in a place free from frosting or condensation in the refrigerator. Thus, an efficient deodorization can be attained by the equipment 12 in a simple and inexpensive structure, without being covered with frost.

75. 发明专利

JP2002081836A REFRIGERATOR 失效
公开(公告)号：JP2002081836A
公开(公告)日：2002-03-22
申请号：JP2000268380
申请日：2000-08-31
申请人： HITACHI LTD
发明人： KUMAKURA HIDEO , YAMANAKA TOMIJI , SAITO MICHIHIRO , NAKAMURA HIDEYUKI
IPC分类号： F25D17/08
摘要： PROBLEM TO BE SOLVED: To provide a refrigerator in which a displacement of temperature within the refrigerator is reduced and a cooling performance is improved. SOLUTION: This refrigerator comprises of a refrigerator chamber formed inside a box; a cooling unit for cooling air in the refrigerator chamber; a cold air passage arranged at the rear wall surface of the refrigerator chamber and formed over the refrigerator chamber in an upward or downward direction of it; and a cold air flowing-in port communicating between the cold air passage and the refrigerator chamber to cause cold air from the cooling unit to flow into the refrigerator chamber. This refrigerator is further comprised of an air passage arranged between a plurality of air passages described above to cause the air in the refrigerator chamber to flow therein; a blower for feeding air contained in the refrigerator chamber to the air passage; and a blowing-out port arranged in the air passage so as to cause the air in the air passage to be blown into the refrigerator chamber. An opening where the blower sucks air is arranged below the lower-most shelf in the shelves in the refrigerator installed in an upward or downward direction inside the refrigerator chamber.

76. 发明专利

JP2001205461A STRUCTURE BODY 失效
公开(公告)号：JP2001205461A
公开(公告)日：2001-07-31
申请号：JP2000018262
申请日：2000-01-27
申请人： HITACHI LTD
发明人： NAKAMURA HIDEYUKI , KAWASAKI TAKESHI , MAKINO TOSHIAKI , INE YOSHIHIKO
IPC分类号： E04B1/61 , B23K20/12 , B23K33/00 , B23K101/18 , B23K103/10 , B61D17/00 , B61D17/04 , B61D17/08 , E04C2/30 , E04C2/40 , F16S1/02 , F16S1/10
摘要： PROBLEM TO BE SOLVED: To make a structure body made by joining members having two face plates and a rib which connects the face plates by a friction stir joining light in weight. SOLUTION: The tip parts of face plates 21 and 22 of a hollow shape member 20 are connected by a rib 24, and joined with the tip parts of the face plates 11 and 12 of a hollow shape member 10 by a friction stir joining method. The visible outline of the joined part of the tip part of the face plate 21 (22) and the rib 24 is formed by circular arcs 31 (33) and 32 (34) which are recessed towards the side of the hollow shape member 20. The diameter of the circular arc 31 (33) is smaller than the diameter of the circular arc 32 (34). Thus the structure body is made light in weight.

77. 发明专利

JP2001205456A FRICTION STIR JOINING METHOD 失效
公开(公告)号：JP2001205456A
公开(公告)日：2001-07-31
申请号：JP2000013670
申请日：2000-01-24
申请人： HITACHI LTD
发明人： KAWASAKI TAKESHI , SAGAWA TOSHIAKI , NAKAMURA HIDEYUKI
IPC分类号： E04C2/32 , B23K20/12 , B23K33/00 , B23K101/04 , B23K103/10 , B23P11/00
摘要： PROBLEM TO BE SOLVED: To allow a hollow section excellent joining from one side of the surface irrespective of the dimensional precision of the hollow section, etc. SOLUTION: A butt part between face plates 12b, 22b of sections 10, 20 is subjected to the friction stir joining. Subsequently, a connection material 30 is placed and one edge of the connection material 30 is abutted on the edge part of a face plate 11 of the hollow section 10. In such a state, a butt part between the face plate 11 and the connection material 30 is subjected to the friction stir joining. Also, an overlapped part between the other edge of the connection material 30 and the hollow section 20 is subjected to the friction stir joining. The connection material 30 and a face plate 21 of the hollow section 20 are welded as necessary.

78. 发明专利

JP2000317652A FRICTION-STIR-WELDING METHOD AND STRUCTURE BODY THEREFOR 失效
公开(公告)号：JP2000317652A
公开(公告)日：2000-11-21
申请号：JP13374299
申请日：1999-05-14
申请人： HITACHI LTD
发明人： KAWASAKI TAKESHI , MAKINO TOSHIAKI , NAKAMURA HIDEYUKI
IPC分类号： B23K20/12
摘要： PROBLEM TO BE SOLVED: To prevent strength from being lowered, and to provide an easy method for friction-stir-welding. SOLUTION: After positioning the T-shaped member 30 for the joining part of two members 10, 20, after positioning the first piece 30b of the member 30 between the two members 10, 20, after positioning the second piece 30d of the member 30 on the sides of the surfaces on the one side of the members 10, 20 respectively. In this state, by a rotary tool inserted from the side of the second piece 30d, the two members 10, 20, the second piece 30d and the first piece 30b are subjected to friction-stir-welding. Consequently, the thicknesses of the members 10, 20 can be prevented from being reduced.

79. 发明专利

JP2003212116A RAIL VEHICLE 审中-公开
公开(公告)号：JP2003212116A
公开(公告)日：2003-07-30
申请号：JP2002012286
申请日：2002-01-22
申请人： HITACHI LTD
发明人： OKUNO SUMIO , MAKINO TOSHIAKI , NAKAMURA HIDEYUKI , OBA HIDEYORI , YAMAMOTO TAKAHISA
IPC分类号： B61D17/08 , B61D17/18
摘要： PROBLEM TO BE SOLVED: To provide a hollow section capable of improving weight saving. SOLUTION: The hollow section 10 comprises an extrusion hollow section 20 where a first face plate 21 and a connection plate 25 are integrally formed, and a second face plate member 40 coupled to the tip of the connecting plate 25. The second face plate member 40 consists of two plates 41 and 42 and the two plates are brazed together. One plate 42 is protruded to the outside and a foaming material 60 is situated in the space of the protrusion part 43. Therefore, the plates can form a hollow section where mounting of a light and heat insulating material is facilitated. The hollow section is used in the side body structure and the roof body structure. The face plate 21 is situated on the outside of a car. COPYRIGHT: (C)2003,JPO

80. 发明专利

JP2002160076A MANUFACTURING METHOD FOR STRUCTURAL BODY 失效
公开(公告)号：JP2002160076A
公开(公告)日：2002-06-04
申请号：JP2000362841
申请日：2000-11-29
申请人： HITACHI LTD
发明人： NAKAMURA HIDEYUKI , KAWASAKI TAKESHI , MAKINO TOSHIAKI , SAGAWA TOSHIAKI
IPC分类号： B61D17/00 , B23K20/12 , B61F1/00
摘要： PROBLEM TO BE SOLVED: To provide a structural body which has high strength. SOLUTION: Projections 11 and 21 are provided on one side faces of the end parts of plate materials 10 and 20, and projections 12 and 22 are provided on the other side faces thereof. The centers of plate thickness of the plate materials 10 and 20 are substantially made to coincide with each other, the end parts thereof are abutted on each other, and friction stir welding is applied thereon. The projections 11 and 12 are cut, and height of the projections 11 and 21 and that of the projections 12 and 22 are substantially equal. In the structural body manufactured by this method, when a tensile load is acted in a direction perpendicular to a joint line, bend deformation is not caused in the vicinity of a joint part even the plate thickness therein is increased. Accordingly, stress generated in the vicinity of the joint part can be reduced, and the structural body can bear under the high tensile load.

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