Patents Assigned to Machinefabriek Wila B.V.
  • Patent number: 5103665
    Abstract: The invention relates to a press such as a folding press and a deep-draw press comprising a press frame with a lower yoke and an upper yoke which are mutually reciprocally movable, wherein the lower yoke and the upper yoke are each provided with co-acting tools and wherein between a yoke and its tool are arranged a curve forming device which comprises a series of curve-forming wedge pairs which lie distributed over the length of the yoke between the yoke and the tool, wherein each curve-forming wedge pair is provided with an apparatus for adjusting the mutual position of the curve-forming wedges of a curve-forming wedge pair.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: April 14, 1992
    Assignee: Machinefabriek Wila B.V.
    Inventor: Jacobus L. van Merksteijn
  • Patent number: 5022256
    Abstract: The invention relates to a clamping device for the clamping of at least one piece of tooling, for instance an upper tooling or a press, which device comprises:two clamping jaws moveable towards and away from one another, between which the tooling can be clamped,pressure means, for instance at least one hydraulic cylinder for pressing the clamping jaws towards one another with force at energizing thereof, andat least one locking element present between the clamping jaws for co-action with an edge present on the tooling,such that the tooling in the absence of energizing of the pressure means can be pushed with at least one edge over the locking element, hook over the edge, and thus prevents the tool from falling,and is characterized in thata resilient strip, which is attached between the clamping jaws to one clamping jaw and which as a result of its own resilience lies in untensioned state at a distance from a pressure surface of this clamping jaw, whereby in the absence of energizing of the pressure means, the
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: June 11, 1991
    Assignee: Machinefabriek Wila B.V.
    Inventor: Jan van der Meulen
  • Patent number: 5009098
    Abstract: A press that includes a frame which bears a bending device that includes an upper tool and a lower tool which can be moved in a mutually reciprocal manner. The press also includes a curve-forming element for forming a curve on the bending device. The curve-forming element has curve-forming members slidable over each other in a lengthwise direction and a transverse direction and making contact with each other. The contact surface of the curve-forming members in the lengthwise direction and the transverse direction of the bending device possess the respective determined angles of slope .alpha. and .beta.. The press has an element for adjusting the curve-forming members in the lengthwise direction and the transverse direction, wherein the curve-forming members adjoining each other at the sides preferably form a curve-forming strip which extends substantially over the whole length ofthe bending device. This curve-forming strip is preferably provided with a number of discrete contact surfaces.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: April 23, 1991
    Assignee: Machinefabriek Wila B.V.
    Inventor: Jacobus L. van Merksteijn