(19)
(11) EP 1 541 956 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.04.2009 Bulletin 2009/16

(43) Date of publication A2:
15.06.2005 Bulletin 2005/24

(21) Application number: 04292911.7

(22) Date of filing: 08.12.2004
(51) International Patent Classification (IPC): 
F28F 9/02(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 08.12.2003 JP 2003409278

(71) Applicant: Calsonic Kansei Corporation
Tokyo 164-8602 (JP)

(72) Inventors:
  • Nakajima, Shiro, Calsonic Kansei Corporation
    Nakano-ku Tokyo 164-8602 (JP)
  • Kimura, Satoshi, Calsonic Kansei Corporation
    Nakano-ku Tokyo 164-8602 (JP)
  • Okura, Hiroyuki, Calsonic Kansei Corporation
    Nakano-ku Tokyo 164-8602 (JP)
  • Tochigi, Kenji, Calsonic Kansei Corporation
    Nakano-ku Tokyo 164-8602 (JP)
  • Miyasaka, Shinichi, Calsonic Kansei Corporation
    Nakano-ku Tokyo 164-8602 (JP)

(74) Representative: Intes, Didier Gérard André et al
Cabinet Beau de Loménie 158, rue de l'Université
75340 Paris Cedex 07
75340 Paris Cedex 07 (FR)

   


(54) Tank structure


(57) In a tank structure of a heat exchanger, at least one of a first tank member (1) and a second tank member (2) which have substantially U-shaped cross sections has, in coupling portions thereof, bent portions (Z1, Z2) made of bent plate materials. The first tank member (1) and the second tank member (2) have first slits to fourth slits (14, 24, 15, 25) that are formed at least in the bent portions (Z1, Z2) near end faces. End face closing members (3) have main portions (31) capable of closing end-face openings formed by the first and second tank members (1, 2), and the main portions (31) have on outer peripheries thereof integrally formed first lock portions (33) and second lock portions (32) inserted in and locked by the slits (14, 24, 15, 25) to cover gaps formed between the first and second tank members (1, 2).







Search report