(19)
(11) EP 0 130 616 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.01.1987 Bulletin 1987/03

(43) Date of publication A2:
09.01.1985 Bulletin 1985/02

(21) Application number: 84107739

(22) Date of filing: 04.07.1984
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 04.07.1983 JP 12034283
14.05.1984 JP 9472884

(71) Applicant: FRANCE BED COMPANY, LIMITED
 ()

(72) Inventors:
  • Sasaki, Noboru
     ()
  • Iwata, Yasuji
     ()
  • Mukai, Teruo
     ()

   


(54) Apparatus for manufacturing spring units


(57) In an apparatus for manufacturing springs, a frame body (1) has guide rails (83) on which a pair of movable bodies (87) are mounted to be movable. Each of the movable bodies (87) has rotatable holding rollers (135) between which a wire (27) which is to be processed is held, and each body also has a shaping roller (153) for bending the end of the wire in a coil. Arranged between the shaping roller (153) and the holding rollers (135) are a guide member (151) for defining the supply passage for the wire, and a pitch rod for determining the pitch of the coil formed. When the holding rollers (135) are rotated, while holding the wire (27), the movable bodies (87) are moved toward each other by the pulling force exerted to the wire (27), and the wire (27) is supplied from between the paired holding rollers (135) to the shaping roller (153) through the guide member (151). The pitch rod (155) is reciprocated as the movable bodies run, and as one turn of the wire coil strikes against the pitch rod (155), making it possible to form spiral springs at both ends of the wire (27).







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