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EP 0 538 493 A1

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(43) Date of publication: 28.04.1993 Bulletin 1993/17 (21) Application number: 92909986.0 (22) Date of filing: 11.05.1992

(51) International Patent Classification (IPC):  F04B 27/ 10( . ) F04B 39/ 10( . ) F04B 39/ 00( . ) (86) International application number: PCT/JP1992/000600 (87) International publication number: WO 1992/020919 (26.11.1992 Gazette 1992/29)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 10.05.1991 JP 19910106053 03.06.1991 JP 19910131180 03.06.1991 JP 19910131190 25.06.1991 JP 19910048145U (71) Applicant: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Aichi-ken 448 (JP)

(72) Inventors: IKEDA, H., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) FUJII, T., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) UMEMURA, S., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) KAWAMURA, H., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) YOKOMACHI, N., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) MURAKAMI, K., K K Toyoda JidoshokkiSeisakusho Aichi448 i (JP) NAKAJIMA, T., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) KITAGAWA, E., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) TARUTANI, T., K K Toyoda Jidoshokki Seisakusho Aichi 448 (JP) (74) Representative: Pellmann, Hans-Bernd, Dipl.-Ing., et al  Patentanwaltsbüro Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München D-80336 München (DE)