TRUCK OR TRAILER WITH LATERALLY TILTABLE DUMP BODY WITH HINGED SIDE PANELS HYDRAULICALLY OPERATED FROM CLOSED TO OPEN POSITION

• US 3,730,591 A
• Filed: 08/24/1971
• Issued: 05/01/1973
• Est. Priority Date: 08/24/1971
• Status: Expired due to Term

• Current Assignee: Juniper Griffis
• Original Assignee: Juniper Griffis
• Inventors: Griffis, Juniper
• Primary Examiner(s): Johnson, Richard J.
• Assistant Examiner(s): Eisenzopf, Reinhard
• Application Number:
  US05/174,372
• Time in Patent Office: 616 Days
• Field of Search: 298/17.6,17.7,18,35M,23MD,23DF,7 105/270,271,273,276,240
• US Class Current: 298/17.6
• CPC Class Codes: B60P 1/165 tipping movement about a fore and aft axis

Abstract

A truck or trailer with hydraulically actuated and laterally tiltable dump body with hinged side panels hydraulically swingable into open and closed position and having the hydraulic controls in the cab of the truck. Novel manually controlled locking means is used for securing the side panels from accidentally swinging laterally into open position. The hydraulically actuated means for tilting the body laterally in either direction from a horizontal position can incline the body at an angle of substantially 45* and the side panels can be swung into a position substantially paralleling the floor of the body.

Claims

1. A vehicle having a frame a. a dump body mounted on said frame and having a bottom;

b. a left and a right side gate hingedly connected to the two side edges of the dump body bottom;

c. means for tilting said dump body laterally either to the right or to the left so as to incline the dump body bottom from a horizontal position;

d. means for swinging the left side gate into open position when said dump body is tilted laterally to the left, and for swinging the right side gate into open position when said dump body is tilted laterally to the right;

e. said means for swinging the two side gates into open position including two quadrant-shaped plates, one for each side gate, one straight edge of each plate being secured to the inner surface and substantially at the middle of each side gate, said plates extending inwardly from said gates when the latter are in closed position; and

f. hydraulically controlled means for swinging either plate for closing the side gate associated with said plate to swing into an open position substantially paralleling the plane of said dump body.

2. The combination as set forth in claim 1 and in which a. said dump body has front and rear ends against which said side gates contact when they are in closed position, said ends having hollow interiors;

b. hydraulic means mounted in the hollow interiors of said front and rear ends for swinging said side gates into closed position and including a quadrant-shaped end plate secured to each end of each side gate and being slidably receivable in the hollow interiors of the front and rear dump body ends;

c. a hydraulic telescopic extensible cylinder centrally mounted in the hollow interior of each front and rear ends and carrying a pulley that is moved by the changing length of the extensible cylinder; and

d. a separate cable for each of the front and rear ends, each cable having its mid-portion contacted by the pulley that is moved by the extensible cylinder, the ends of the cable being connected to the two quadrant-shaped end plates that are received in the hollow interiors of the front and rear ends, the actual connection of the cable ends to the two end plates being made where the ends of the arcuate-shaped edges of said end plates meet the adjacent surface of the associate side gate, the arcuate-shaped edges of said end plates being provided with a cable receiving groove, and the length of each cable being such that when said telescopic cylinder is fully extended, it will pull on said cable for causing it to swing the side gates into closed position.

3. The combination as set forth in claim 2:

and in which a. means is provided for securing said quadrant-shaped end plates in closed position for preventing the accidental swinging of the side gates into open position.

4. The combination as set forth in claim 3:

and in which a. the securing means for holding the quadrant-shaped end plates in closed position also includes means for preventing the accidental swinging of the quadrant-shaped plates that are connected substantially at the middle of each side gate;

b. whereby said securing means must initially be moved into released position for freeing the middle and end quadrant-shaped plates before the desired side gate can be swung into open position.