(19)
(11) EP 0 633 217 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.07.1995 Bulletin 1995/27

(43) Date of publication A2:
11.01.1995 Bulletin 1995/02

(21) Application number: 94850102.8

(22) Date of filing: 14.06.1994
(51) International Patent Classification (IPC)6B66F 9/07
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI NL SE

(30) Priority: 14.06.1993 SE 9302047

(71) Applicant: BT SYSTEMS AB
S-590 10 Boxholm (SE)

(72) Inventor:
  • Johansson, Lennart
    S-595 00 Mjölby (SE)

(74) Representative: Willquist, Bo 
Albihn Willquist AB S:t Larsgatan 23
S-582 24 Linköping
S-582 24 Linköping (SE)


(56) References cited: : 
   
       


    (54) Store crane


    (57) The invention relates to an arrangement for a stores crane for internal materials handling comprising a load carrier (16) so arranged as to run along guides (22) on a vertical crane mast (12) and a lifting device (18) for the load carrier arranged for displacement of the load carrier along the mast. A fall brake (26) is attached to the load carrier for the purpose, in the event of a fault in the lifting device, of preventing the load carrier from falling downwards through engagement with the guides. A detector device (27) is so arranged as to sense the movement of the load carrier and, in the event of deviation from set values, to actuate the fall brake. This exhibits a brake housing (30) with a moving wedge-shaped brake body (33) capable of moving against one of the guides (22) and along a support surface (45) angled against the guide in the brake housing (30). The movement is controlled so as to take place between a first, non-braking position and a second, braking position in which the brake body (13) is in contact under the effect of the wedge with both the guide (22) and the support surface (45). The brake body (33) incorporates a scraper device (52) so arranged, on the one hand, as to scrape the guide (22) clean from dirt and, on the other hand, as to displace the brake body (33) towards its braking position through an initial frictional force.







    Search report