Asphalt-removing machine having a plurality of blade members

• US 7,419,328 B2
• Filed: 04/29/2005
• Issued: 09/02/2008
• Est. Priority Date: 08/27/2004
• Status: Expired due to Fees

• Current Assignee: Caterpillar Power Systems Incorporated (Caterpillar Incorporated)
• Original Assignee: Caterpillar Incorporated
• Inventors: Potts, Dean Roger, Renard, Jeffrey A., Tilstra, Andrew Harold
• Primary Examiner(s): Addie; Raymond W
• Application Number:
  US11/117,313
• Publication Number:
  US 20060045622A1
• Time in Patent Office: 1,222 Days
• Field of Search: 404/90, 404/91
• US Class Current: 404/90
• CPC Class Codes: E01C 23/085 using power-driven tools, e.g. vibratory tools
• CPC Class Codes: E01C 23/121 with non-powered tools, e.g. rippers rollers with ripping attachments E01C19/264, E01C19/27, E01C19/285; roughening or patterning using non powered tools E01C23/082
• CPC Class Codes: E01C 23/127 rotary, e.g. rotary hammers

Abstract

A work machine for removing asphalt from a roadway is disclosed. The work machine includes a plurality of blade members to remove asphalt from the roadway. The plurality of blade members are interconnected by way of hinges.

Claims

1. A machine, comprising a plurality of blade members configured to remove asphalt from a roadway, the plurality of blade members being interconnected by way of hinges, and the plurality of blade members including at least three blade members interconnected by at least two hinges.

2. The machine of claim 1, further including a heating device configured to heat at least one of the plurality of blade members.

3. The machine of claim 1, further including a vibration-inducing device configured to vibrate the plurality of blade members.

4. The machine of claim 1, wherein the plurality of blade members are movable to accommodate the crown of a roadway surface.

5. The machine of claim 1, further including a quick-locking mechanism associated with at least one of the plurality of blade members, the quick-locking mechanism configured to secure the at least one of the plurality of blade members to the machine and to facilitate replacement of the at least one of the plurality of blade members.

6. The machine of claim 1, further including a scoring device located on each side of the plurality of blade members to score the asphalt prior to removal of the asphalt.

7. The machine of claim 1, wherein the plurality of blade members includes at least two outer blade members and at least two inner blade members, the at least two outer blade members being configured to be lowered relative to the at least two inner blade members.

8. The machine of claim 1, further including a plurality of wheels located forward of the plurality of blade members relative to a travel direction of the machine and operatively connected to the plurality of blade members, the plurality of wheels providing depth control for the plurality of blade members.

9. The machine of claim 8, further including at least one sensor associated with the plurality of wheels, the at least one sensor providing an indication of a property of the roadway.

10. The machine of claim 9, wherein the property includes compaction.

11. The machine of claim 9, further including a controller in communication with the sensor and configured to affect an operation of the machine in response to the indication.

12. The machine of claim 8, further including at least one motor associated with the plurality of wheels, the at least one motor configured to drive at least one of the plurality of wheels and draw the asphalt toward the plurality of blade members.

13. A method of removing asphalt from a roadway surface, the method comprising separating a layer of asphalt from the roadway surface with a plurality of blade members interconnected by way of hinges, wherein separating the layer of asphalt from the roadway surface includes using at least three blade members interconnected by at least two hinges.

14. The method of claim 13, further including vibrating at least one of the plurality of blade members to loosen the layer of asphalt.

15. The method of claim 13, further including heating at least one of the plurality of blade members to soften the layer of asphalt.

16. The method of claim 13, further including:

guiding the separated layer of asphalt from the plurality of blade members to a grinding device; and

folding the outer edges of the separated layer of asphalt over itself before the separated layer of asphalt reaches the grinding device.

17. The method of claim 13, further including scoring the asphalt to either side of the plurality of blade members.

18. The method of claim 13, further including sensing a property of the asphalt before separating the layer of asphalt.

19. The method of claim 18, wherein the property is compaction.

20. The method of claim 18, further including affecting at least one operation of a machine comprising the plurality of blade members in response to the sensed property.

21. The method of claim 13, further including urging the asphalt toward the plurality of blade members.

22. The method of claim 13, wherein separating the layer of asphalt from the roadway surface includes lowering at least two outer blade members and raising at least two inner blade members.

23. A machine, comprising:

a plurality of blade members configured to remove asphalt from a roadway, the plurality of blade members being interconnected by way of hinges;

at least one of a heating device configured to heat at least one of the plurality of blade members and a vibration-inducing device configured to vibrate the plurality of blade members;

a quick-locking mechanism associated with at least one of the plurality of blade members, the quick-locking mechanism configured to secure the at least one of the plurality of blade members to the machine and to facilitate replacement of the at least one of the plurality of blade members; and

a scoring device located on each side of the plurality of blade members to score the asphalt prior to removal of the asphalt.

24. The machine of claim 23, wherein the plurality of blade members are movable to accommodate the crown of a roadway surface.

25. The machine of claim 23, further including:

a plurality of wheels located forward of the plurality of blade members relative to a travel direction of the machine and operatively connected to the plurality of blade members, the plurality of wheels providing depth control for the plurality of blade members;

at least one sensor associated with the plurality of wheels, the at least one sensor providing an indication of a property of the roadway; and

a controller in communication with the sensor and configured to affect an operation of the machine in response to the indication.

26. The machine of claim 25, further including at least one motor associated with the plurality of wheels, the at least one motor configured to drive at least one of the plurality of wheels and draw the asphalt toward the plurality of blade members.

27. The machine of claim 23, wherein the plurality of blade members includes at least three blade members interconnected by at least two hinges.

28. The machine of claim 23, wherein the plurality of blade members includes at least two outer blade members and at least two inner blade members, the at least two outer blade members being configured to be lowered relative to the at least two inner blade members.