Device for dividing laminated glass

• US 5,704,959 A
• Filed: 02/05/1996
• Issued: 01/06/1998
• Est. Priority Date: 12/13/1993
• Status: Expired due to Fees

• Current Assignee: LISSMAC Maschinenbau GmbH
• Original Assignee: Peter Lisec
• Inventors: Lisec, Peter
• Primary Examiner(s): Czaja, Donald E.
• Assistant Examiner(s): Ruller, Jacqueline A.
• Application Number:
  US08/596,181
• Time in Patent Office: 701 Days
• Field of Search: 65/174, 65/176, 65/268, 225/93.5
• US Class Current: 65/174
• CPC Class Codes: B32B 17/1099 After-treatment of the layered product, e.g. cooling
• CPC Class Codes: C03B 33/078 Polymeric interlayers
• CPC Class Codes: Y10T 225/304 Including means to apply thermal shock to work

Abstract

The invention relates to a device for dividing laminated glass, especially two-pane laminated glass, comprising two, plate-shaped supports for the glass sheet in which one of the supports is rigidly attached in the machine from and the other support is mounted to swivel around a horizontal axis located in the area between the supports. Cutting tools can be moved in the abutting area between the two supports for scratching the laminated glass on both sides. A blade used for splitting the plastic film located between the two glass panes is mounted on a holder slide which can swivel around a horizontal axle which is aligned in a direction of movement of the holder slide.

Claims

1. A device for dividing laminated glass, comprising:

first and second plate-shaped supports for the laminated glass, said supports being essentially horizontally aligned, said first support being rigidly attached in a machine frame and said second support being mounted to swivel around a horizontal axis located in an area between said supports and being able to move in a direction of a plane of said first support, said first support being fixed to the machine transversely to said second support,

means for fixing the laminated glass on said supports, said means for fixing being located on edges of said supports, said edges being adjacent to said area between said supports,

cutting tools which can be moved in said area between said supports for scratching the lamp means for on both sides, and

means for splitting a plastic film located between two panes of said laminated glass, wherein the means for splitting the plastic film comprises cutting means with a blade which can move in said area between said supports, wherein further a holder for said blade is mounted on a holder slide to swivel around a horizontal axle which is aligned in a direction of movement of said holder slide.

2. Device according to claim 1, wherein said blade is inserted into a holding fixture which is erected on a fixture slide which also carries one of the cutting tools.

3. Device according to claim 1, wherein said holder for said blade is erected on one of the cutting tools which acts from overhead on an upper laminated glass pane.

4. Device according to claim 1, wherein said holder for said blade can be adjusted independently of the cutting tools perpendicularly to the plane of the first support.

5. Device according to claim 1, wherein said holder for said blade is further guided on two guide rods which carry the cutting tool on their free ends.

6. Device according to claim 1, wherein said blade is clamped on said holder using a clamping device.

7. Device according to claim 1, further comprising a cover cap which can be swivelled on said holder and which can be swung into a position which covers said blade.

8. Device according to claim 1, further comprising:

a carrier which is coupled to a switch and pivotally attached to said holder through a horizontal axle with an axis of rotation perpendicular to a direction of motion of said blade, and

a freely rotating wheel mounted to said carrier.

9. Device according to claim 1, further comprising a device actuated by a linear motor for fixing of said holder for said blade to prevent said swivelling capacity.

10. Device according to claim 1, wherein the means for fixing the laminated glass are clamp beams which act from overhead on the laminated glass, and wherein said clamp beams are guided on both ends in guides which are perpendicular to the plane of the first support and a plane of the second support, said device further comprising actuating cylinders which are supported on said supports and which engage ends of said clamp beams.

11. Device according to claim 10, further comprising:

upwardly pointing vertical members attached to a center of said clamp beams, and

tie rods clamped between an upper end of each vertical member and the two ends of each said clamp beam.

12. Device according to claim 11, wherein said vertical member is of variable length.

13. Device according to claim 12, wherein said vertical member of variable length is a hydraulic cylinder.

14. Device according to claim 1, wherein said second support which can swivel around said horizontal axis can also be turned around a fulcrum which is located laterally to the area between said supports in a plane which is aligned with the plane of said first support.

15. Device according to claim 14, further comprising first and second swivel bearings supporting said second support, wherein said first swivel bearing is rigidly mounted on a frame of the device, and wherein said second swivel bearing is mounted on an auxiliary carrier which can be moved parallel to the plane of said first support.

16. Device according to claim 1, wherein said holder for said blade is mounted on a plate which is erected on a slide of one said cutting tool.

17. Device according to claim 16, wherein said holder for said blade on said plate can be swivelled around said horizontal axle which is aligned in the direction of movement of the slide.

18. Device according to claim 1, further comprising bracing beams attached to said edges of said first and second supports, said edges adjacent to said area between said two supports.

19. Device according to claim 18, further comprising downward pointing vertical members disposed in a center of the bracing beams, and tie rods which extend from said vertical member to ends of said bracing beams.

20. Device according to claim 19, wherein said vertical members are of variable length.

21. Device according to claim 20, wherein the vertical members are hydraulic motors.

22. Device according to claim 10, further comprising:

bracing beams attached to said edges of said first and second supports, and

glass supports disposed on mutually facing surfaces of said clamp beams and said bracing beams, wherein said glass supports directly abut the laminated glass to be divided, said glass supports on said bracing beams being aligned with tops of said first and second supports.

23. Device according to claim 1, further comprising a guide wheel disposed on said holder.

24. Device according to claim 1, further comprising a guide wheel rotatably disposed on a carrier, wherein said carrier is rotatably mounted to one of said holder and a base plate attached to the holder.

25. Device according to claim 24, further comprising one of a switch and a rule disposed between an end of the carrier opposite a rotation axle of said carrier and said holder, wherein said one of a switch and a rule receives movements of said carrier.

26. Device according to claim 23, wherein said guide wheel, relative to a direction of movement of said cutting means, is located in front of said blade.

31. Device according to claim 1, wherein the means for fixing the laminated glass on said first and second supports comprises, on at least one of said first and second supports, a negative pressure suction device which consists of several suction devices located in an area of said edges of each of said first and second supports adjacent to other of said first and second supports.

27. Device according to claim, further comprising an adjustable stop for fixing a cutting position of the laminated glass.

28. Device according to claim 27, wherein said adjustable stop is disposed upon said second support.

29. Device according to claim 27, further comprising a stop strip for the laminated glass, said stop strip being attached above said second support to stop strip slides which can be moved on fixed guide rails located next to transverse edges of said second support.

30. Device according to claim 29, further comprising arms attached to said stop strip, said arms being attached to a shaft whose end is supported in said stop strip slides and which can be turned by at least one hydraulic motor so that said stop strip can be raised and lowered.