Shingle synchronization between blend drop and cut, and between pattern and pattern cutter
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorsJohn David Phillips, David Russell Rodenbaugh
Life of this patent
Estimating the term…
Abstract
A method and apparatus are provided to place a series of timing marks on a granule covered roofing sheet. A rotary pattern cutter cuts a pattern of tabs and cutouts in the continuous granule covered sheet. The rotary position of the pattern cutter and the position of the timing marks are sensed, and the position of the continuous granule covered sheet with respect to the rotary position of the pattern cutter is synchronized in response to the sensed position of the timing marks and the sensed rotary position of the pattern cutter.
Claims10
A method of making shingles, wherein the shingles include an overlay portion and an underlay portion comprising:
- a. establishing a continuous shingle overlay sheet having a repeated overlay pattern;
- b. establishing a continuous shingle underlay sheet having a repeated underlay pattern;
- c. sensing the presence of the overlay pattern on the continuous shingle overlay sheet;
- d. sensing the presence of the underlay pattern on the continuous shingle underlay sheet;
- and
- e. synchronizing the position of the continuous shingle overlay sheet with respect to the continuous shingle underlay sheet in response to the sensed presence of the repeated overlay pattern and the sensed presence of the repeated underlay pattern;
- and
- f. laminating the underlay and overlay portions;
- g. cutting the laminated underlay and overlay portions into a shingle.
A method of making shingles, wherein the shingles include an overlay portion and an underlay portion comprising:
- establishing a continuous shingle overlay sheet having cutouts;
- establishing a continuous shingle underlay sheet having notches;
- sensing the presence of the cutouts on the continuous shingle overlay sheet;
- sensing the presence of the notches on the continuous shingle underlay sheet;
- synchronizing the position of the continuous shingle overlay sheet with respect to the continuous shingle underlay sheet in response to the sensing of the cutouts and the notches;
- laminating the continuous shingle overlay sheet and the continuous shingle underlay sheet together;
- and
- cutting the laminated overlay and underlay sheets into a shingle.
An apparatus for making shingles comprising:
- means for providing a continuous shingle overlay sheet having a repeated overlay pattern and a continuous shingle underlay sheet having a repeated underlay pattern;
- a sensor for sensing a beginning of the overlay pattern on the continuous shingle overlay sheet;
- a sensor for sensing a beginning of the underlay pattern on the continuous shingle underlay sheet;
- and
- means for synchronizing the position of the continuous shingle overlay sheet and the continuous shingle underlay sheet with respect to each other in response to the sensed beginning of the repeated overlay pattern and the sensed beginning of the repeated underlay pattern;
- means for laminating the overlay and underlay sheets;
- and
- means for cutting the laminated sheets into a shingle.
Dependencies are inferred from the claim text.