Multi-movements blade for snowblower
Assignee9091-4532 QuéBec Inc.
InventorsEtienne CÔTÉ, Alexandre CÔTÉ
Life of this patent
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Abstract
A scraping apparatus includes an uppermost structure having a front and a rear, and a shaft mounted to the rear of the uppermost structure parallel thereto. The scraping apparatus includes at least one torsion spring wound around the first shaft, and a blade mounting structure mounted thereto that is rotatable between a working position and a tripped position The scraping apparatus includes blades mounted slidingly to the front of the blade mounting structure with the blades being rotatable between a lowermost position and a raised position. The torsion springs are biasing the first blade mounting structure toward the working position and the blades toward their lowermost position.
Claims20
A scraping apparatus having a scraping edge adapted to scrape a ground surface area when moved forward, the scraping apparatus comprising:
- an uppermost structure having a front and a rear thereof;
- a first shaft mounted to and parallel to the rear of the uppermost structure;
- at least one torsion spring wound around the first shaft;
- a first blade mounting structure rotatably secured to the first shaft between a working position and a tripped position where the first blade mounting structure is pivoted rearward relative to the working position;
- and
- at least one blade slidingly mounted to a front of the first blade mounting structure, the at least one blade being movable between a forward position and a raised position,
- wherein the at least one torsion spring is at least one of i) biasing the first blade mounting structure toward the working position and ii) biasing the at least one blade toward the forward position.
Dependencies are inferred from the claim text.