(19)
(11) EP 0 927 585 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.10.2004 Bulletin 2004/44

(43) Date of publication A2:
07.07.1999 Bulletin 1999/27

(21) Application number: 98123420.6

(22) Date of filing: 09.12.1998
(51) International Patent Classification (IPC)7B21J 15/04, B21J 15/02, B21J 15/06, B25B 27/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 02.01.1998 CZ 754098

(71) Applicant: Masterfix Products B.V.
6219 NP Maastricht (NL)

(72) Inventor:
  • Schwab, Manfred
    549 32 Velké Porici (CZ)

(74) Representative: Reinhardt, Harry et al
Reinhardt & Pohlmann Partnerschaft, Grünstrasse 1
75172 Pforzheim
75172 Pforzheim (DE)

   


(54) Device for clamping a stem to the traction mandrel of a riveting tool


(57) In a device for clamping a stem to the traction mandrel of a riveting tool, the traction mandrel has a traction sleeve (11) loosely fitted in the enclosing sleeve (12) and mutually secured with the enclosing sleeve against axial shifting and turning. Between the enclosing sleeve and the peripheral recess in the traction sleeve (11) there is a compression spring (10). The traction sleeve (11) has an inner thread, onto which is screwed the stem (1), whose collar has at least one flattened plane on its outer circumference corresponding to an inner peripheral surface of the adjacent part of the enclosing sleeve (12). The device is fitted together with the traction mandrel (13) in the nozzle (5) of the riveting tool, wherein the nozzle has a passage opening in the area of the enclosing sleeve (12). Without the use of a tightening instrument as for example a key, it is possible to change easily and very quickly the mandrels for rivets in the riveting tool.







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