Patents by Inventor Jürgen Eltze

Jürgen Eltze has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6382400
    Abstract: A transport and position system, particularly for the workpiece transfer, has a lever mechanism between its driving motors and its output to carry out a step-up. The lever mechanism takes over the guiding as well as the driving of the carrier device which therefore forms the output of the lever mechanism. As a result of the step-up, high accelerations and decelerations can be achieved at the carrier device. Thereby, the mass inertia of linear guides for the bearing of levers and mass inertias of drives moved along play a substantially reduced role. While a high positioning precision can be achieved.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: May 7, 2002
    Assignee: Schuler Pessen GmbH & Co.
    Inventors: Hans Hofele, Andreas Dangelmayr, Jürgen Eltze, Karl Thudium
  • Patent number: 6374994
    Abstract: A transfer system, particularly for the transfer of workpieces in multi-station presses (1), consists of several transfer modules (14 to 19), which each have a workpiece holding device (28) which is carried by at least one lever mechanism (23). Each lever mechanism transmits the adjusting movement of two mutually independent drives (39, 44) to the workpiece holding device (28). One of the drives (39, 44) is disposed in a stationary manner, and the other is moved by the drive disposed in a stationary manner. This basic principle opens up many design possibilities.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: April 23, 2002
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Hans Hofele, Andreas Dangelmayr, Jürgen Eltze, Karl Thudium
  • Patent number: 6374995
    Abstract: A positioning system (31, 32, 33, 34 35, 36), particularly for transporting and positioning workpieces, has a drive and force generating transmission device (47) by means of which a carrier device (41) can be moved and positioned. At least one force generating device (70) is connected to the drive and force transmission device (47), which force generating device (70) feeds into the drive and transmission system of the drive and force transmission device (47), an additional force used for compensating the weight of the drive and force transmission device and its moved parts and possibly of a workpiece, to the extent that this force manifests itself at the drives of the drive and force transmission device (47).
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: April 23, 2002
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Hans Hofele, Andreas Dangelmayr, Jürgen Eltze, Karl Thudium
  • Patent number: 6324885
    Abstract: An orienting station provided particularly for press systems has a receiving device which is carried by a rod-type transmission. This rod-type transmission is supported on drive units of a driving device. The drive units are disposed in a stationary manner. The rods of the rod-type transmission are rigid and their lengths cannot be changed.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: December 4, 2001
    Assignee: Schuler Pressen GmbH & Co. KG
    Inventors: Peter Klemm, Hans Hofele, Jürgen Eltze
  • Patent number: 6223582
    Abstract: A transfer system, particularly for the transfer of workpieces in multi-station presses, includes several transfer modules, each of which has a workpiece holding device carried by at least one lever mechanism. Each lever mechanism transmits the adjusting movement of two mutually independent drives to the workpiece holding device. One of the drives is disposed in a stationary manner and the other drive is moved by the stationarily disposed drive.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: May 1, 2001
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Hans Hofele, Andreas Dangelmayr, Jürgen Eltze, Karl Thudium
  • Patent number: 5993143
    Abstract: A transfer device for press systems has cross traverses with at least one suction unit swivellably held thereon. The suction unit has an electric drive for coordinating the swivel movement with the transfer curve (horizontal and vertical movement) to be travelled. As may be required, two or more suction units can be independently swivellable on a cross traverse. A retrofitting and retooling of existing cross traverses can be carried out by the replacement of non-swivellable suction units used so far by swivellable suction units. Other changes on the mechanical structure of the transfer device are not required.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: November 30, 1999
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Juergen Eltze, Hans Hofele
  • Patent number: 5899108
    Abstract: A transfer device 41 provided particularly for multistation presses 1 has a holding device 46, 47 which is carried by several rods 53, 54, 55; 83, 84, 85 and which can be swivelled in space and positioned by means of the rods 53, 54, 55; 83, 84, 85. The rods 53, 54, 55; 83, 84, 85 are preferably connected with linear driving devices 61, 62, 63; 86, 87, 88 which therefore jointly act upon the holding device 46, 47. In the case of an embodiment having six degrees of positioning freedom, three of the rods 53, 54, 55; 83, 84, 85 are applied to a first hinge point 49 of the holding device 46, 47. By means of their other ends, these rods 83, 84, 85 define a triangle. Of the remaining three rods 53, 54, 55, two 53, 54 are applied to another hinge point 56 and a third 55 is applied to a hinge point 57 situated away therefrom which again defines a triangle together with the other two hinge points 49, 56. In addition to the simple workpiece transfer, such a transfer device 41 permits complicated positioning tasks.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: May 4, 1999
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Hans Hofele, Peter Klemm, Juergen Eltze, Stefan Veit, Kurt Metzger
  • Patent number: 5842370
    Abstract: A transfer device is provided particularly for multistation presses and is arranged between two working stations. The transfer device has a suction bridge which extends transversely with respect to a transfer direction and which is guided on its ends by two control arm gearings synchronously along a predetermined transfer curve. The control arm gearings are formed by control arms or rods which are connected on the end side with the cross traverse and which, on their respective end situated away from the cross traverse 46, are held in preferably vertically aligned linear axles, in which case the control arms, in respective pairs, enclose the same angle with one another. By the targeted controlling of the linear axles, almost arbitrary transfer curves can be travelled within the scope of the range of the transfer device. All linear axles are directly supported on a stationary frame whereby a high stiffness and precision is achieved even at high accelerations.
    Type: Grant
    Filed: December 19, 1996
    Date of Patent: December 1, 1998
    Assignee: Schuler Pressen GmbH & Co.
    Inventors: Hans Hofele, Peter Klemm, Juergen Eltze, Stefan Veit, Kurt Metzger