Tailgate locking system
AssigneeSuper Products Corporation
InventorThomas P. Flynn
Life of this patent
Estimating the term…
Abstract
A system is disclosed for positively sealing the tailgate of a liquid or solid refuse collection body. The invention has special utility for vacuum containers in which a compressible seal surrounds the perimeter of the tailgate. The tailgate includes hooks having cam surfaces and the container includes rollers adapted for engaging the hooks and drawing the tailgate into positive engagement with the opening of the body. Hydraulic means are preferably provided for activating the rollers. If separate hydraulic means are employed for raising and lowering the tailgate, sequencing controls may be provided to permit locking the tailgate only after the tailgate hooks have been lowered to a position adjacent to the rollers.
Claims17
A system for securing a closure to an opening comprising:
- a container having an opening,
- a hinged closure means for sealing said opening,
- hook means secured to the periphery of said closure means including a cam-shaped surface on the free end thereof, said hook means being generally perpendicular to said closure means and extending along the outside of said container when said closure means seals said opening,
- roller means on said container for engaging said surface of said hook means, said roller means being movable from a first to a second position to urge said closure means into sealing engagement with said opening, and
- means for selectively causing engagement of said roller means with said surface to permit selective sealing of said opening.
A sealing system for a body opening comprising:
- a hollow material collection body including an opening for removal of material,
- a generally planar closure means for said opening, said closure means being mounted to said body by hinge means and
- means for causing said closure member to sealingly engage said body comprising:
- i. hook means secured to the periphery of said closure member, said hook means incluidng an elongate portion disposed perpendicularly to said closure member and adjacent a side of said body and terminating in a hook protrusion oriented generally perpendicularly to said elongate portion and having a cam-like surface between the tip thereof and said elongate portion;
- and
- ii. means on said body for causing a roller to move from a first to a second position to selectively engage the tip of said hook protrusion and travel along said cam-like surface to the junction of said protrusion and elongate portion.
A system for latching and sealing the tailgate of a material collection body having an opening and a floor said tailgate being hingedly secured at its upper end to said body and having its lower end adjacent the rear of the floor of said body when said tailgate is in a closed position, said system comprising:
- hook means secured to the lower edge of said tailgate and including an elongate portion which is substantially perpendicular to said tailgate and disposed below said floor of said body when said tailgate is in a closed position, said elongate portion terminating in a downwardly extending protrusion being substantially perpendicular to said elongate portion and having a camlike surface between the tip thereof and said elongate portion,
- roller means and means connected to said body to cause said roller means to selectively engage the tip of said hook protrusion and travel along said cam-like surface to the junction of said protrusion and elongate portion.
Dependencies are inferred from the claim text.