Conveyors: power-driven – Conveyor section – Endless conveyor
Patent
1991-11-21
1993-10-12
Olszewski, Robert P.
Conveyors: power-driven
Conveyor section
Endless conveyor
198842, 198843, 267153, B65G 1560
Patent
active
052517420
ABSTRACT:
A conveyor installation includes an endless belt wound around head and tail pulleys which extends between an impact station wherein material is placed on the belt and a drop off zone wherein the material is removed from the belt. Shock absorbers are disposed beneath the belt at the impact station to dissipate energy imparted on the belt by the material. In one embodiment, the belt is formed of flexible, textile reinforced material and the shock absorbers are in the form of a plurality of rectangular elements having a generally planar upper surface for supporting substantially the entire undersurface of the belt in the impact station. In another embodiment, the belt is formed of rigid steel reinforced material and the shock absorbers are in the form of a plurality of closely spaced rollers. In both embodiments, downstream of the impact station are located idler rollers for supporting the belt at spaced locations. The idler rollers are mounted on a support frame via shock absorbing elements in the form of rings. Each of the shock absorbing elements is formed of elastomeric material and has at least one passage formed therein and configured so that the body wall surrounding the passage is generally K-shaped in section and functions as a buckling element.
REFERENCES:
patent: 3211278 (1965-10-01), Arndt
patent: 4822011 (1989-04-01), Goldbach et al.
Sheets containing FIGS. 22-26 of "Conveyor Belt Installation Maintenance" by Georgia Duck & Cordage Mill, Scottsdale, Ga., undated, pp. 15 and 17.
A. B. Davey and A. R. Payne, "Buckled Columns", Rubber in Engineering Practice, 1964, pp. 4-6.
A. Syrotiuk and P. G. Howgate, "Buckling Energy Absorption and Management", pp. 12 and 13, from An Introduction to the Use of Elastomers for Deformation Energy Management, Rubber and Plastics Research Association of England. Letter and sketch from Skega Limited, North Bay, Ontario, dated May 31, 1990.
Trelleborg specification sheet and sketch showing impact bars and T-Bolt Fastening System, 2 sheets, undated.
Advertising sampler form Martin.RTM. Conveyor Transfer Point Systems showing Guardabelt.RTM. Impact Cradles, 2 sheets, undated.
CP Rubber, a Div. of Starcan Corporation
Gastineau Cheryl L.
Olszewski Robert P.
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