Side dump trailer

• US 6,257,670 B1
• Filed: 03/31/2000
• Issued: 07/10/2001
• Est. Priority Date: 03/31/2000
• Status: Active Grant

• Current Assignee: Maurer Manufacturing, LLC
• Original Assignee: Thurston Manufacturing Co.
• Inventors: Rogers, Ralph R.
• Primary Examiner(s): Gordon, Stephen T.
• Application Number:
  US09/540,354
• Time in Patent Office: 466 Days
• Field of Search: 298/17.7, 298/18, 298/22.J, 298/22.P, 298/22.D, 298/13
• US Class Current: 298/18
• CPC Class Codes: B60P 1/165 tipping movement about a fore and aft axis

Abstract

A side dump trailer comprising a trailer body pivotally mounted on a wheeled frame to enable the material within the trailer body to be dumped from one side of the trailer. The body is pivotally moved with respect to the wheeled frame by means of a plurality of horizontally spaced-apart scissor lift assemblies positioned beneath the body of the trailer.

Claims

1. A side dump trailer, comprising:

an elongated wheeled frame having a forward end, a rearward end, and first and second sides;

a plurality of horizontally spaced-apart supports on said wheeled frame at said first side thereof;

an elongated body movably positioned on said wheeled frame and having a forward end, a rearward end, and first and second sides;

said body including a bottom wall, a first side wall extending upwardly and outwardly from said bottom wall at said first side of said body at said first side of said wheeled frame, and a second side wall extend upwardly from said bottom wall at said second side of said body at said second side of said wheeled frame;

said first and second side walls having inner and outer surfaces;

a plurality of horizontally spaced-apart pivot pins secured to and positioned at said outer surface of said first side wall of said body which are pivotally mounted in said supports;

and a plurality of horizontally spaced-apart scissor lift assemblies operatively connected to said wheeled frame and said body for selectively pivotally moving said body about said pivot pins, whereby said body may be selectively moved from a non-dumping position to a dumping position;

said wheeled frame comprising first and second longitudinally extending frame members which have spaced-apart first and second cross members, having first and second ends, secured thereto and extending therebetween at each scissor lift assembly location;

each of said scissor lift assemblies comprising horizontally spaced-apart and vertically disposed first and second lift arms positioned between respective one of said first and second cross members;

said first and second lift arms having first and second ends;

said first ends of said first and second lift arms being pivotally secure to said respective first and second cross members;

horizontally spaced-apart and vertically disposed third and fourth lift arms having first and second ends;

said first ends of said third and fourth lift arms being pivotally secured to said second ends of said first and second lift arms;

said second ends of said third and fourth lift arms being pivotally secured to said bottom wall of said body;

a power cylinder having a base end and a rod end;

said base end of said power cylinder being positioned between said first and second lift arms and being pivotally secured thereto below the pivotal connection of said first and second lift arms to said first and second cross members;

said rod end of said power cylinder being positioned between said third and fourth lift arms and being pivotally secured thereto;

the extension of the power cylinders of said scissor lift assemblies causing said body to be pivotally moved from its said non-dumping position to its said dumping position;

the retraction of the power cylinders of said scissor lift assemblies causing said body to be pivotally moved from its said dumping position to its said non-dumping position.

2. A side dump trailer, comprising:

an elongated wheeled frame having a forward end, a rearward end, and first and second sides;

a plurality of horizontally spaced-apart supports on said wheeled frame at said first side thereof;

an elongated body movably positioned on said wheeled frame and having a forward end, a rearward end, and first end second sides;

said body including a bottom wall and first and second side walls;

said first and second side walls having inner and outer surfaces;

a plurality of horizontally spaced-apart pivot pins secured to and positioned at said outer surface of said first side wall of said body which are pivotally mounted in said supports;

and a plurality of horizontally spaced-apart scissor lift assemblies operatively connected to said wheeled frame and said body for selectvely pivotally moving said body about said pivot pins, whereby said body may be selectively moved from a non-dumping position to a dumping position;

said wheeled frame comprising first and second longitudinally extending frame members which have spaced-apart first and second cross members, having first and second ends, secured thereto and extending therebetween at each scissor lift assembly location;

each of said scissor lift assemblies comprising horizontally spaced-apart and vertically disposed first and second lift arms positioned between respective ones of said and second cross members;

said first and second lift arms having first and second ends;

said first ends of said first and second lift arms being pivotally secured to said respective first and second cross members;

horizontally spaced-apart and vertically disposed third and fourth lift arms having first and second ends;

said first ends of said third and fourth lift arms being pivotally secured to said second ends of said first and second lift arms;

said second ends of said third and fourth lift arms being pivotally secured to said bottom wall of said body;

a power cylinder having a base end and a rod end;

said base end of said power cylinder being positioned between said first and second lift arms and being pivotally secured thereto below the pivotal connection of said first and second lift arms to said first and second cross members;

said rod end of said power cylinder being positioned between said third and fourth lift arms and being pivotally secured thereto;

the extension of the power cylinders of said scissor lift assemblies causing said body to be pivotally moved from its said non-dumping position to its said dumping position;

the retraction of the power cylinders of said scissor lift assemblies causing said body to be pivotally moved from its said dumping position to its said non-dumping position.