(19)

(11)

EP 0 238 564 A1

(12)

(43) Date of publication: 30.09.1987 Bulletin 1987/40 (21) Application number: 86905698.0 (22) Date of filing: 19.09.1986

(51) International Patent Classification (IPC):  A63H 33/ 12( . ) F16B 2/ 04( . ) E04B 2/ 02( . ) (86) International application number: PCT/BE1986/000029 (87) International publication number: WO 1987/001604 (26.03.1987 Gazette 1987/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 19.09.1985 BE 19850215603 (71) Applicant: LAUREYSSENS, Dirk B-2153 Zoersel (BE)	(72) Inventors: BEKAERT, Philippe B-9000 Gent (BE) LAUREYSSENS, Dirk B-2153 Zoersel (BE)