Skip car liner

Details Skip car liner Skip car liner

1999-11-12

2001-01-16

Dayoan, D. Glenn (Department: 3612)

Land vehicles: bodies and tops

Bodies

Lining

C105S423000

Reexamination Certificate

active

06174013

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention relates in general to energy absorbing barriers and liners and deals more particularly with improvements in elastomeric liners for mine skip cars, quarry truck beds and like receptacles for receiving dumped loads of rock and ore which have been processed by disintegrating machinery.
Elastomeric energy absorbing barriers and liners have heretofore been employed for protecting the skip cars and other such receptacles to increase receptacle life and reduce equipment maintenance. The protective liners employed in skip cars, for example, usually comprise sheets of energy absorbing elastomeric material mounted adjacent the inner walls of a car receptacle to absorb impact from dropped loads. However, rough chunks of rock and ore produced by disintegrating equipment and which comprise the load are often as large as six inches (6″) in diameter, have sharp edges, and tend to abrade and cut the exposed surface of an energy absorbent liner, thereby substantially reducing liner life.
Accordingly, it is the general aim of the present invention to provide an improved elastomeric skip car liner which more effectively utilizes the resilient energy absorbing characteristics of an elastomeric lining material to dissipate the energy of a falling load of rock or ore and thereby reduce liner damage from large pieces of sharp falling rock or ore to increase liner life and reduce skip car maintenance.
SUMMARY OF THE INVENTION
In accordance with the present invention, a skip car liner comprises a resilient flexible impact absorbing barrier formed from an elastomeric material and includes a vertically disposed backing ply which has an outwardly facing mounting surface, adapted to engage and generally cover at least a part of an inner surface of a skip car receptacle, and an inwardly facing impact absorbing inner surface. A plurality of vertically spaced apart and horizontally extending impact absorbing ribs are integrally connected in cantilever position to the impact absorbing inner surface of the backing ply for deflection relative to the backing ply and extend along the entire length of the ply. The cantilever ribs are downwardly and inwardly inclined away from the inner surface of the backing ply for deflection toward the ply in response to impact force when a load of rock or ore is dumped into the skip car. A mounting means is provided for supporting the liner within a skip car and generally adjacent at least a portion of an inwardly facing surface of the skip car receptacle.


REFERENCES:
patent: 5109970 (1992-05-01), Zaborszki
patent: 6000741 (1999-12-01), Reynolds et al.
patent: 6056345 (2000-05-01), Stevens
patent: 1594046 (1990-09-01), None

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