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US 2019/0093699 A1Published application
Supporting washer
AssigneeMLT Minet Lacing Technology
InventorHorst JAKOB
Life of this patent
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Abstract
The present disclosure provides a washer having a generally circular shape and is used for supporting a screw head. The shank of the screw penetrates the central hole of the washer. When viewed from a planar perspective, the outer edges of the washer have a sinusoidal shape with depressions and elevations.
Claims5
A supporting washer for a screwed or riveted assembly for a conveyor belt junction element, the supporting washer comprising:
- a central hole for receiving a connecting element comprising a stem and a head for supporting edges of the central hole;
- an outer edge including sinuosities comprising elevations and depressions, the elevations located further from a geometric center of the washer than the depressions in such a way that the outer edge has a linear shape that increases a length of the outer edge;
- a lower edge formed between a lower surface of the washer and the outer edge, said lower edge having a rounded edge on at least the elevations of the sinuosities of the outer edge;
- and
- an upper conical surface starting from an edge of a bowl surrounding the central hole or from a circular surface surrounding the central hole and terminating at the outer edge, the upper conical surface driving a progressive tapering of the washer such that an upper edge of the outer edge is flush with a surface of the junction whereon the washer is placed when the washer has been applied by riveting or screwing.
2 more elements
Dependencies are inferred from the claim text.