Road-drag

• US 7,600,576 B2
• Filed: 06/01/2007
• Issued: 10/13/2009
• Est. Priority Date: 06/01/2007
• Status: Active Grant

• Current Assignee: Daryl Gayer
• Original Assignee: Daryl Gayer
• Inventors: Gayer, Daryl
• Primary Examiner(s): Pezzuto; Robert E
• Assistant Examiner(s): Troutman; Matthew D
• Application Number:
  US11/809,570
• Publication Number:
  US 20080296033A1
• Time in Patent Office: 865 Days
• Field of Search: 172/26.5, 172/63, 172/72, 172/197, 172/199, 172/342, 172/786, 172/787, 172/799.5, 172/445.1, 172/445.2, 172/146, 172/157, 172/193, 172/684.5, 372/68, 372/69
• US Class Current: 172/799.5
• CPC Class Codes: E01C 23/082 using non-powered tools
• CPC Class Codes: E02F 3/7686 with the vertical centre-line of the scraper blade disposed laterally relative to the central axis of the frame

Abstract

A road drag for medium and heavy grading projects is provided. The road drag includes a pair of side members and front, center and rear transverse bars that define a rectangular shaped platform. A V-member is disposed adjacent each corner of the platform and steel blades are attached to a first arm of each of the V-members in a downward direction. A center V-member is further attached to the center bar. Steel blades are further attached to ends of the center V-member in a downward direction. A tail board is secured to a pair of extensions that extend from the rear bar of the platform that defines a rear section. The rear section includes means to prevent the tail board from bouncing or hopping during application in order to better distribute material during use. The road drag further includes an axle and preferably dual wheels near or adjacent the tail board. The road drag further includes a front end that extends from the front bar of the platform with attaching means that is hitched to the back of a vehicle. The front end preferably includes a leveling means to raise and lower the platform for transport and work applications.

Claims

1. A road drag comprising:

a pair of side members connected by front, center and rear transverse bars that define a rectangular-shaped platform,

a V-member disposed adjacent each front corner of the platform, said V-member having a first arm defining a 90 degree angle in relation to a support,

second arms attached to a rear portion of said platform to said rear traverse board,

steel blades attached to each of the first and second arms, said steel blades positioned in a downward direction,

a center V-member attached to said center bar, wherein steel blades are attached to ends of said center V-member in a downward direction,

a tail board secured to a pair of pivotably mounted extensions that extend from said rear bar of the platform defining a rear section,

a shock absorber and adjustable turnbuckle connected at a first end to said platform and at a second end to said extension to control the position of said tail board and to prevent the tail board from bouncing during application,

an axle and wheels adjacent the tail board,

a front end that extends from the front bar of the platform with attaching means that is hitched to the back of a vehicle, and

leveling means to raise and lower the platform for transport and work applications.

2. The road drag as recited in claim 1, wherein said blades on said first arm are angled to move material toward the center of the platform and said blades on said second arm moves material away from the center of said platform and wherein said leveling means includes a first cylinder acting to raise said platform on a pair of wheels and wherein a second cylinder acts to oppose said first cylinder.

3. The road drag as recited in claim 1, wherein said tail board is adjustably mounted such that an angle of said tail board can be adjusted and then locked in place such that said tail board will tend to move material to one side of said road drag as it is dragged forward.

4. The road drag as recited in claim 1, wherein said first arm has a smaller angle compared to a line perpendicular to a path of travel of said road drag than said second arm.

5. The road drag as recited in claim 1, wherein said first arm is at an angle of approximately 45 degrees to a line perpendicular to travel of said road drag and said second arm has an angle of approximately 47 degrees to said line perpendicular.

6. A road drag comprising:

a rectangular-shaped platform,

a V-member disposed adjacent each front corner of the platform, said V-member having a first arm defining a 90 degree angle in relation to a support,

second arms attached to a rear portion of said platform to said rear traverse bar,

steel blades attached to each of the first and second arms, said steel blades positioned in a downward direction,

a center V-member attached to said center bar, wherein steel blades are attached to ends of said center V-member in a downward direction,

a tail board secured to a pair of extensions that extend from a rear bar of the platform defining a rear section,

shocks and adjustable connections connected at a first end to said platform and at a second end to said extensions to control the position of said tail board and to prevent the tail board from bouncing during application,

an axle and wheels adjacent the tail board,

a hitch that extends from a front bar of the platform, and

a cylinder to raise the platform for transport and lower the platform for work applications.

7. The road drag as recited in claim 6, wherein said blades on said first arm are angled to move material toward the center of the platform and said blade on said second arm moves material away from the center of said platform and wherein said cylinder to raise the platform includes a second cylinder that acts to oppose said cylinder.

8. The road drag as recited in claim 7, wherein said tail board is adjustably mounted such that an angle of said tail board can be adjusted and then locked in place such that said tail board will tend to move material to one side of said road drag as it is dragged forward.

9. The road drag as recited in claim 8, wherein said first arm has a smaller angle compared to a line perpendicular to a path of travel of said road drag than said second arm.

10. The road drag as recited in claim 8, wherein said first arm is at an angle of approximately 45 degrees to a line perpendicular to travel of said road drag and said second arm has an angle of approximately 47 degrees to said line perpendicular.

11. The road drag as recited in claim 10, wherein said cylinder includes a scale to indicate a depth of said blades.

12. The road drag as recited in claim 10, wherein said tail board extensions are pivotably mounted and include a ratchet adjustment to adjust the depth of said tail board.

13. A road drag comprising:

a platform,

a member disposed adjacent each front corner of the platform, said member having a first arm defining a 90 degree angle in relation to a support,

second arms attached to a rear portion of said platform to said rear traverse bar, steel blades aligned with and attached to each of the first and second arms, said steel blades positioned in a downward direction,

a center V-member attached to said center bar, wherein steel blades are attached to ends of said center V-member in a downward direction,

a tail board secured to a pair of extensions that extend from a rear bar of the platform defining a rear section,

shocks and at least one adjustable connection connected at a first end to said platform and at a second end to said extensions to control the position of said tail board and to prevent the tail board from bouncing during application,

an axle and wheels adjacent the tail board,

a hitch that extends from a front bar to the platform, and

a first cylinder to raise the platform for transport and lower the platform for work applications.

14. The road drag as recited in claim 13, wherein said tail board is adjustably mounted such that an angle of said tail board can be adjusted and then locked in place such that said tail board will tend to move material to one side of said road drag as it is dragged forward.

15. The road drag as recited in claim 13, wherein the first arm has a smaller angle compared to a line perpendicular to a path of travel of said road drag than said second arm.

16. The road drag as recited in claim 13, wherein said first cylinder includes a scale to indicate a depth of said blades, wherein said scale is visible to an operator towing said road drag and a second cylinder acts to oppose said first cylinder to provide smooth motion.

17. The road drag as recited in claim 13, wherein tail board extensions are pivotably mounted and include a ratchet adjustment to adjust the depth of said tail board.

18. The road drag as recited in claim 13, wherein said first arm is at an angle of approximately 45 degrees to a line perpendicular to travel of said road drag and said second arm has an angle of approximately 47 degrees to said line perpendicular.

19. The road drag as recited in claim 13, wherein said road drag includes an electrical connection to a towing vehicle and lights.