Air filter and air conditioner

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EP 1 275 907 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	25.06.2003 Bulletin 2003/26

(43)	Date of publication A2:
	15.01.2003 Bulletin 2003/03

(21)	Application number: 02254873.9

(22)	Date of filing: 11.07.2002

(51)	International Patent Classification (IPC)⁷: F24F 1/00, F24F 3/16, F24F 13/28, B01D 46/42, F24F 13/08

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

11.07.2001 JP 2001210946
23.07.2001 JP 2001221691

(71)	Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
	Tokyo 100-8310 (JP)

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Inventors:

Koizumi, Hideaki, Mitsubishi Electric Company Ltd.
Tokyo 100-0004 (JP)
Tanikawa, Yoshinori c/o Mitsubishi Elec.Eng.Cy Ltd
Tokyo 100-004 (JP)
Kojima, Kazuhito Mitsubishi Elec.Eng. Cy Ltd
Tokyo 100-0004 (JP)
Ooishi, Kazuhiro Mitsibishi Elec. Eng. Cy Ltd
Tokyo 100-0004 (JP)
Hotta, Toshihiro c/o Mitsubishi Elec. Eng. Cy Ltd
Tokyo 100-8310 (JP)
Tazawa, Tetsuya Mitsubishi Elec. Eng. Cy. Ltd
Tokyo 100-0004 (JP)

(74)	Representative: Mounteney, Simon James
	MARKS & CLERK, 57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)

(54)	Air filter and air conditioner

(57) An air filter (14) having a plurality of unit filter frame members (22) each of which includes a filter piece (3) and which are coupled foldably through hinge portions (23). A guide portion (32) is provided to have at least a pair of boss portions (25) made to project from each of opposite side surfaces (35) of the unit filter (14), so that the guide portions (32) are provided on the opposite side surfaces (35), and are respectively inserted into and guided by guide grooves (26) provided at the place where the air filter (14) is to be installed.

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