Apparatus for unloading bulk material

• US 4,781,513 A
• Filed: 11/10/1986
• Issued: 11/01/1988
• Est. Priority Date: 04/15/1985
• Status: Expired due to Fees

• Current Assignee: Kjell A. Sjogren, Leif Sjogren
• Original Assignee: Kjell A. Sjogren, Leif Sjogren
• Inventors: Sjogren, Leif, Sjogren, Kjell A.
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): Forman, Michael J.
• Application Number:
  US07/007,967
• Time in Patent Office: 722 Days
• Field of Search: 239/652, 239/657, 239/659, 239/661, 239/664, 239/672, 239/675, 239/688, 239/689, 414/489, 414/501, 414/502-505, 414/523, 414/526
• US Class Current: 414/489
• CPC Class Codes: E01C 19/185 for both depositing and spreading-out or striking-off the deposited mixture laying-down the materials and consolidating them, or finishing the surface, E01C19/48
• CPC Class Codes: E01C 19/202 solely rotating, e.g. discharging and spreading drums
• CPC Class Codes: E01C 2019/208 with longitudinal auger
• CPC Class Codes: E01C 2019/2095 by tipping
• CPC Class Codes: E01C 23/06 Devices or arrangements for working the finished surface working freshly laid paving E01C19/42 - E01C19/44, E01C23/02; mining picks E21C35/18; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road

Abstract

An apparatus for unloading bulk material, particularly asphalt and the like, from the deck (3) of a load-carrying vehicle, and spreading the material (49) over ground (37) contiguous to the vehicle, includes a spreader unit connectable for support to the rear end of the deck (3). The unit comprises a part (5) arranged for connection to the end of the deck for receiving material from the deck, and with the aid of a transverse conveyor (7) to give this material a suitably agitated or comminuted state and convey it further, and a cantilever arm-like conveyor (9), adapted at its first end to receive the material conveyed according to the above and at its second free end to discharge received material, the conveyor (9) being controllably swivelably suspended (at 11) at said first end, so that it can be caused to sweep over ground (37) contiguous to the vehicle, thereby to spread the discharged material (49) over said ground.

Claims

1. An apparatus for unloading bulk material from a load-carrying vehicle deck and spreading the material over ground contiguous to the vehicle, the apparatus comprising a spreader device, connectable to a rear end of the deck and carried thereby during unloading of the material,

said spreader device comprising

an adapter fixedly mounted on the rear end of said deck, and a spreader unit connectable to said adapter on said vehicle at a work site for unloading the material from the deck of said vehicle,

said spreader unit comprising

a connection part,

means for connecting the connection part to said adapter on the vehicle, said connection part including means for receiving the material from the deck and giving the material an agitated condition suitable for further conveyance, said means for receiving the material including a transverse conveyor connected to a rear edge of the deck when the spreader unit is connected to said adapter, for conveying bulk material to a material outlet of the connection part,

an extensible cantilever conveyor having a first material inlet end for receiving the bulk material discharged through said material outlet of the connection part and falling freely therefrom to the cantilever conveyor and a discharge end for discharging bulk material to be spread out, the cantilever conveyor being articulated and having an outer part separately pivotable relative to the cantilever conveyor, so that said outer part is movable over the ground relative to the cantilever conveyor,

a suspension part connected to the connection part and being pivotable around a transverse shaft such that the pivotable attitude between the suspension part and the connection part is controllably changeable for adjusting to different positions of the deck and to different positions of the connection part, whereby the suspension part is at least substantially parallel to the ground when the material is being spread,

means for swivelably suspending the cantilever conveyor at its said first end in said suspension part, said means including a ring means from which the cantilever conveyor is suspended, said ring means being rotatably mounted in said suspension part such that when said ring means are rotated, the cantilever conveyor moves over the ground, said ring means having a ring opening and said suspension part having a corresponding opening, such that when the material is passing the material outlet of the connection part, said openings and the material inlet of the cantilever conveyor are in alignment;

and

means for adjusting the suspension of the cantilever conveyor such that an axis about which the conveyor swivels in its sweeping movement can be given various inclinations in a transverse plane relative to the vehicle.

2. An apparatus as claimed in claim 1, wherein the cantilever conveyor, suspended in said ring means is pivotable around the axis at least substantially parallel to a plane of said ring means.

3. An apparatus as claimed in claim 2, wherein said means for adjusting the suspension of the cantilever conveyor comprises means for adjustably pivoting the suspension part about an axis which is at least substantially parallel to a longitudinal axis of the vehicle.

4. An apparatus as claimed in claim 2, wherein said adapter includes a downwardly mounted rearwardly swingable tailboard part which, when in a rearwardly swung position, together with the connection part, constitutes an extension of the deck which ends at said transverse conveyor.

5. An apparatus as claimed in claim 1, wherein said means for adjusting the suspension of the cantilever conveyor comprises means for adjustably pivoting the suspension part about an axis which is at least substantially parallel to a longitudinal axis of the vehicle.

6. An apparatus as claimed in claim 5, wherein said adapter includes a downwardly mounted rearwardly swingable tailboard part which, when in a rearwardly swung position, together with the connection part, constitutes an extension of the deck which ends at said transverse conveyor.

7. An apparatus as claimed in claim 1, wherein said adapter includes a downwardly mounted rearwardly swingable tailboard part which, when in a rearwardly swung position, together with the connection part, constitutes an extension of the deck which ends at said transverse conveyor.