(19)
(11) EP 0 233 312 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
07.10.1987 Bulletin 1987/41

(43) Date of publication A2:
26.08.1987 Bulletin 1987/35

(21) Application number: 86111910

(22) Date of filing: 28.08.1986
(84) Designated Contracting States:
FR NL SE

(30) Priority: 17.02.1986 JP 2139186

(71) Applicant: Toyo Construction Co,Ltd.
 ()

(72) Inventors:
  • Mitsuse, Masanori c/o Toyo Construction Co. Ltd.
     ()
  • Yokozawa, Hideo c/o Toyo Construction Co. Ltd.
     ()
  • Sarasawa, Kaoru c/o Toyo Construction Co. Ltd.
     ()
  • Goto, Seiichi c/o Toyo Construction Co. Ltd.
     ()

   


(54) Drain material holding apparatus for board drain process


(57) Disclosed is a drain material holding apparatus for use to carry out a board drain method, in which a pushing rod is inser­ted into a hollow mandrel provided with an openable/closable cover attached on its lower end so that a drain material can be grasped between the openable/closable cover and an end surface of the pushing rod when the openable/closable cover is rotated in the direction to close a drain material insertion through hole formed in the mandrel.







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