Material carrying vehicle

• US 3,941,260 A
• Filed: 10/15/1974
• Issued: 03/02/1976
• Est. Priority Date: 10/15/1974
• Status: Expired due to Term

• Current Assignee: ISCO Manufacturing Company Incorporated
• Original Assignee: ISCO Manufacturing Company Incorporated
• Inventors: Coons, Harold, Fisher, Don H., Highfill, Jackie
• Primary Examiner(s): Spar, Robert J.
• Assistant Examiner(s): Abraham, George F.
• Application Number:
  US05/514,799
• Time in Patent Office: 504 Days
• Field of Search: 298/1 B, 214/82
• US Class Current: 414/517
• CPC Class Codes: B60P 1/006 charge and discharge with pusher plates plates fixed to endless chains or belts B60P1/365

Abstract

A material carrying vehicle and an unloading apparatus therefor adapted to carry and unload bulk material, such as dirt, sand, gravel, rock, construction material, debris, and the like wherein the material carrying vehicle includes an elongated mobile body formed as a generally channel shaped simple rugged dump style structure easily varied to be interchangeable with different prime movers. The body structure has laterally spaced wear or guide members mounted on a bottom wall of the body and each positioned adjacent a respective side wall of the body to be engaged by a lower edge of an ejection blade positioned transverse of the body and movable between a forward end and a rear end of the body by laterally spaced extensible members. The ejection blade has walls extending rearwardly therefrom defining spaced extensions each receiving a portion of a respective extensible member therein and having elongated bearing plates engaging the wear or guide members of the body. The extensible members are hydraulically actuated with free floating mounting and the hydraulic system is balanced to extend and retract the extensible members without binding or excessive side loading. The tailgate automatically opens by material moved by the ejection blade in its rearward movement.

Claims

1. A material carying vehicle comprising:

a. an elongated mobile body having a forward end and a rear end and having a bottom wall and laterally spaced side walls extending upwardly from the bottom wall to define a generally channel shaped structure having an open top;

b. first and second laterally spaced elongate wear members mounted on the bottom wall of said body;

c. an ejection blade within said body and having an upper edge and a lower edge and opposite side edges, said ejection blade being transverse of said body and having each of the side edges thereof in close proximity to a respective one of said side walls of said body;

d. spaced first and second elongate bearing plates on said ejection blade and each extending longitudinally of and slidingly engaging a respective one of said wear members to movably support said ejection blade with the lower edge thereof in close proximity to said bottom wall of said body; and

e. first and second laterally spaced extensible members each having one end thereof connected to said body adjacent the forward end thereof in upwardly spaced relation to said bottom wall, said extensible members each having the other end thereof connected to said ejection blade adjacent respective bearing plates thereof with said extensible members being inclined downwardly from the forward end toward said ejection blade, said connections of said extensible members with the body and with the ejection blade being by free floating mounting with the guiding and support of the ejection blade being the bearing plates on the wear members and the connections to the extensible members for an absence of binding in movement of the ejection blade.

2. A material carrying vehicle as set forth in claim 1 wherein:

a. said body includes a structural member at the forward end thereof and extending between said side walls and positioned adjacent the top of said body;

b. said structural member has means supporting thereon a first and a second mounting pin;

c. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

d. said ejection blade has means adjacent the lower edge thereof supporting a first and a second mounting pin; and

e. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blade for substantially free movement of said other end of said respective extensible member about said respective pin whereby said extensible members are each inclined to exert a downward force on said ejection blade.

3. A material carrying vehicle as set forth in claim 1 wherein:

a. said body includes a structural member at the forward end thereof and extending between said side walls and positioned adjacent the top of said body;

b. said structural member has means supporting thereon a first and a second mounting pin;

c. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

d. said ejection blade has means adjacent the lower edge thereof supporting a first and a second mounting pin;

e. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blade for substantially free movement of said other end of said respective extensible member about said respective pin whereby said extensible members are each inclined to exert a downward force on said ejection blade; and

f. said extensible members each have control means operatively connected thereto and operative to extend and retract each of said extensible members at substantially the same rate whereby said ejection blade is maintained in a position substantially transverse of said body during movement thereof by said extensible members.

4. A material carrying vehicle as set forth in claim 1 wherein:

a. said elongate wear members are substantially for the length of said bottom wall;

b. said bearing plates have the major length thereof rearwardly of the ejection blade;

c. said connection of said other end of the extensible members to the ejector blade being adjacent rear portions of the bearing plates;

d. said ejector blade having a main portion and rearwardly extending wall portions cooperating with the bearing plates to enclose portions of the extensible members rearwardly of the main portion of the ejector blade.

5. A material carrying vehicle comprising:

a. an elongated mobile body having a forward end and a rear end and having a bottom wall and laterally spaced side walls extending upwardly from the bottom wall to define a generally channel shaped structure having an open top, said side walls each having an upper edge;

b. a tailgate positioned at the rear end of said body and sized to close same, said tailgate being mounted to selectively open and close the rear end of said body;

c. first and second laterally spaced elongate wear members mounted on the bottom wall of said body, said wear members each being positioned adjacent a respective one of said side walls of said body and extending for substantially the length thereof;

d. an ejection blade with said body and having an upper edge and a lower edge and opposite side edges, said ejection blade being transverse of said body and having each of the side edges thereof in close proximity to a respective one of said side walls of said body, the upper edges of said ejection blade being above the upper edge of each of said side walls of said body;

e. spaced first and second elongate bearing plates on said ejection blade and each extending longitudinally of and slidingly engaging a respective one of said wear members to movably support said ejection blade with the lower edge thereof in close proximity to said bottom wall of said body, said bearing plates each being positioned adjacent a respective one of the opposite side edges of said ejection blade with the major length of said bearing plates being rearwardly of said ejection blade;

f. first and second laterally spaced extensible members each having one end thereof connected to said body adjacent the forward end thereof in upwardly spaced relation to said bottom wall, said extensible members each having the other end thereof connected to said ejection blade adjacent respective bearing plates thereof with said extensible members being inclined downwardly from said forward end toward said ejection blade, said connections of said extensible members with the body and with the ejection blade being by free floating mounting with the guiding and support of the ejection blade being the bearing plates on the wear members and the connections to the extensible members for an absence of binding in movement of the ejection blade; and

g. means mounted on said body and operatively connected to said tailgate for selectively releasing same for movement from a closed position to an open position.

6. A material carrying vehicle as set forth in claim 5 wherein:

a. said body includes a structural member at the forward end thereof and extending between said side walls and positioned adjacent the top of said body whereby a major portion of the forward end of said body is open;

b. said structural member has means supporting thereon a first and a second mounting pin;

c. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

d. said ejection blade has means adjacent the lower edge thereof supporting a first and a second mounting pin; and

e. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blade for substantially free movement of said other end of said respective extensible member about said respective pin whereby said extensible members are each inclined to exert a downward force on said ejection blade.

7. A material carrying vehicle as set forth in claim 5 wherein:

a. said body includes a structural member at the forward end therefor and extending between said side walls and positioned adjacent the top of said body whereby a major portion of the forward end of said body is open;

b. said ejection blade is sized to effect a closure of the formed end of said body when said extensible members are each in a retracted position;

c. said structural member has means supporting thereon a first and a second mounting pin;

d. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

e. said ejection blade has means adjacent rear portions of the bearing plates supporting a first and a second mounting pin;

f. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blades for substantially free movement of said other end of said respective extensible member about said respective pin;

g. said ejection blade having rearwardly extending wall portions cooperating with the bearing plates to enclose portions of the extensible members that are rearwardly of said ejection blade.

8. A material carrying device as set forth in claim 7 wherein:

a. said extensible members each have control means operatively connected thereto and operative to extend and retract each of said extensible members at substantially the same rate whereby said ejection blade is maintained in a position substantially transverse of said body during movement thereof by said extensible members; and

b. said means for moving said tailgate being operatively connected to said control means for being extensible members in a manner to release said tailgate for opening movement before said extensible members begin to move said ejection blade rearwardly.

9. A material carrying vehicle comprising:

a. an elongated mobile body having a forward end and a rear end and having a bottom wall and laterally spaced side walls extending upwardly from the bottom wall to define a generally channel shaped structure having an open top;

b. first and second laterally spaced wear members mounted on the bottom wall of said body;

c. an ejection blade within said body and having an upper edge and a lower edge and opposite side edges, said ejection blade being transverse of said body and having each of the side edges thereof in close proximity to a respective one of said side walls of said body;

d. spaced first and second bearing plates on said ejection blade and each slidingly engaging a respective one of said wear members to movably support said ejection blade with the lower edge thereof in engagement with said bottom wall of said body;

e. first and second laterally spaced extensible members each having one end thereof connected to said body at the forward end thereof, said extensible members each having the other end thereof connected to said ejection blade, said connections of said extensible members with the body and with the ejection blade being by free floating mounting for an absence of binding in movement of the ejection blade;

f. said body includes a structural member at the forward end thereof and extending between said side walls and positioned adjacent the top of said body;

g. said structural member has means supporting thereon a first and a second mounting pin;

h. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

i. said ejection blade has means adjacent the lower edge thereof supporting a first and a second mounting pin;

j. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blades for substantially free movement of said other end of said respective extensible member about said respective pin whereby said extensible members are each inclined to exert a downward force on said ejection blade;

k. said means on said ejection blade for supporting the first and second mounting pins comprises first and second extensions;

l. said extensions each comprise;

1. laterally spaced side walls each extending upwardly from the respective bearing plate of said ejection blade;

2. an end wall extending upwardly from the respective bearing plate and connected to each of said side walls; and

3. a top wall extending between and connected to each of said side walls;

m. said ejection blade has laterally spaced openings therein each aligned with a respective one of said extensions; and

n. said side walls of each of said extensions each extend rearwardly from said ejection blade whereby each of said extensions has an open front for receiving a respective one of said extensible members therein.

10. A material carrying vehicle comprising:

a. an elongated mobile body having a forward end and a rear end and having a bottom wall and laterally spaced side walls extending upwardly from the bottom wall to define a generally channel shaped structure having an open top;

said side walls each having an upper edge;

b. a tailgate positioned at the rear end of said body and sized to close same, said tailgate being mounted to selectively open and close the rear end of said body;

c. first and second laterally spaced wear members mounted on the bottom wall of said body, said wear members each being positioned adjacent a respective one of said side walls of said body;

d. an ejection blade within said body and having an upper edge and a lower edge and opposite side edges, said ejection blade being transverse of said body and having each of the side edges thereof in close proximity to a respective one of said side walls of said body, the upper edge of said ejection blade being above the upper edge of each of said side walls of said body;

e. spaced first and second bearing plates on said ejection blade and each slidingly engaging a respective one of said wear members to movably support said ejection blade with the lower edge thereof in engagement with said bottom wall of said body, said bearing plates each being positioned adjacent a respective one of the opposite side edges of said ejection blade and extending rearwardly therefrom;

f. first and second laterally spaced extensible members each having one end thereof connected to said body at the forward end thereof, said extensible members each having the other end thereof connected to said ejection blade, said connections of said extensible members with the body and with the ejection blade being by free floating mounting for an absence of binding in movement of the ejection blade;

g. means mounted on said body and operatively connected to said tailgate for selectively moving same between an open position and a closed position;

h. said body includes a structural member at the forward end thereof and extending between said side walls and positioned adjacent the top of said body whereby a major portion of the forward end of said body is open;

i. said structural member has means supporting thereon a first and a second mounting pin;

j. the one end of each of said extensible members has means engaging a respective one of said pins on said structural member for substantially free movement of said one end of said respective extensible member about said respective pin;

k. said ejection blade has means adjacent the lower edge thereof supporting a first and a second mounting pin;

l. the other end of each of said extensible members has means engaging a respective one of said pins on said ejection blade for substantially free movement of said other end of said respective extensible member about said respective pin whereby said extensible members are each inclined to exert a downward force on said ejection blade;

m. said means on said ejection blade for supporting the first and second mounting pins comprises first and second extensions;

n. said extensions each comprise;

11. laterally spaced side walls each extending upwardly from the respective bearing plate of said ejection blade, said side walls each having a rear end and a front end and an upper edge, the front end of each of said side walls being connected to said ejection blade, one of said side walls being in close proximity to and in facing relation with an adjacent side wall of said body, said one side wall having the upper edge thereof above the upper edge of said other side wall;

2. an end wall extending upwardly from the respective bearing plate and connected to each of said side walls; and

3. a top wall extending between and connected to each of said side walls whereby each of said extensions has an open front for receiving said respective extensible member, said top wall sloping from the upper edge of the said extension side walls to the upper edge of the other of said extension side walls;

o. said ejection blade has first and second laterally spaced openings therein each aligned with the open front of a respective one of said extensions; and

p. said side walls of each of said extensions each extend rearwardly from said ejection blade and said respective mounting pin is mounted on said side walls rearwardly of said ejection blade whereby the connections of said extensible members is rearwardly of said ejection blade.