Pivoting screed edger

• US 5,344,254 A
• Filed: 04/14/1993
• Issued: 09/06/1994
• Est. Priority Date: 04/14/1993
• Status: Expired due to Fees

• Current Assignee: Blaw-Knox Construction Equipment Corporation (Doosan Enerbility Company Limited)
• Original Assignee: Blaw-Knox Construction Equipment Corporation (Doosan Enerbility Company Limited)
• Inventors: Sartain, Gene
• Primary Examiner(s): Bui, Thuy M.
• Assistant Examiner(s): LISEHORA, JAMES
• Application Number:
  US08/047,691
• Time in Patent Office: 510 Days
• Field of Search: 404/101, 404/104, 404/105, 404/118, 404/96, 404/83, 404/84.05
• US Class Current: 404/104
• CPC Class Codes: E01C 19/48 for laying-down the materials and consolidating them, or finishing the surface , e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ E01C19/002, E01C23/065 take precedence; devices for guiding or controlling the machines along a predetermined path E01C19/004
• CPC Class Codes: E01C 19/4873 Apparatus designed for railless operation
• CPC Class Codes: E01C 2301/20 Screed or paver accessories for paving joint or edge treatment

Abstract

A paving apparatus has an edger which is journaled on a screed by a hinge. The edger swings out to allow paving material to fill areas beyond the screed which are not part of the primary surface being paved, such as intersecting driveways. The edger is a vertical plate with a horizontal wear plate along its bottom edge. The angle of the wear plate relative to the bottom edge is adjustable to allow for ditches and ramps which are sloped relative to the surface being paved. Movement of the edger and wear plate can be manual or power driven.

Claims

1. A paving apparatus, comprising:

a movable vehicle capable of distributing paving material;

a laterally elongated screed disposed on the vehicle for forming a substantially level mat of the paving material;

a continuously movable edger comprising a substantially vertical plate having a bottom edge and journaled on an end of the floating screed to pivot on a substantially vertical axis;

remotely controlled powered means to move and secure the edger at a selected horizontal angle relative to the screed to control distribution of paving material beyond an end of the screed during a paving operation;

a generally horizontal wear plate pivotably mounted to extend along the bottom edge of the vertical plate for levelling the paving material;

means to move and secure the wear plate at a selected vertical angle relative to the bottom edge.

2. A paving apparatus according to claim 1, further comprising an auger to distribute paving material to an area forward of the screed toward an end of the screed.

3. A paving apparatus according to claim 1, wherein the screed is vertically adjustable.

4. A paving apparatus according to claim 1, wherein the wear plate moving means comprises two independently operable jacks connected between the wear plate and the vertical plate and located near opposite ends of the edger.

5. A paving apparatus according to claim 1, wherein the wear plate moving means comprises a hydraulically actuated jack connected between the wear plate and the vertical plate.

6. A paving apparatus according to claim 1, wherein the wear plate moving means comprises an electric motor.

7. A paving apparatus according to claim 1, further comprising means to remotely control the wear plate moving means.

8. A paving apparatus according to claim 1, wherein the angle relative to the screed is obtuse.

9. A paving apparatus according to claim 1, wherein the edger moving means is a jack including a hydraulically actuated piston attached between the edger and the screed.

10. A paving apparatus according to claim 1, further comprising a pin means to secure the edger in a position substantially normal to the screed.

11. A paving apparatus according to claim 1, further comprising at least one elongated reference beam towed by the vehicle and serving as a reference for the floating screed.

12. A paving apparatus according to claim 1, wherein the screed is adapted to float on the paving material.