Hand tool having interchangeable accessories
First Claim
1. A multiple head hand held tool assembly for treating different surfaces, said tool assembly comprising:
- a rigid frame having opposite sides terminating in first and second ends;
a hand grip extending between said opposite sides at a location intermediate said first and second ends thereof;
a forearm brace extending between said first ends of the opposite sides of said frame;
a plurality of accessory heads each having means for treating a surface, said treating means being different for each accessory head; and
means for releasably mounting each accessory head between said second ends of the opposite sides of the frame in a manner permitting pivotal movement of each head about a pivot axis extending between said second ends, each accessory head being releasable from said frame to permit its replacement thereon by another accessory head.
1 Assignment
0 Petitions
Accused Products
Abstract
A hand tool having a frame which holds interchangeable working heads for scraping ice and other materials, scrubbing and sanding. The frame pivotally carries the working head at one end and has a curved forearm brace at the other end. A hand grip bar is located between the ends of the frame such that the forearm provides force against the brace to hold the working head against the work surface. This creates a leverage effect and relieves stress on the wrist. The pivotal head allows angled or contoured surfaces to be followed without requiring the wrist to flex at different angles. The scraping head has two scraping edges which scrape on both push and pull strokes. An accessory head which is interchangeable with the ice scraping head can hold two metal scraping blades or interchangeable base plates which provide a sanding sheet and a scrubbing pad, respectively.
80 Citations
15 Claims
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1. A multiple head hand held tool assembly for treating different surfaces, said tool assembly comprising:
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a rigid frame having opposite sides terminating in first and second ends; a hand grip extending between said opposite sides at a location intermediate said first and second ends thereof; a forearm brace extending between said first ends of the opposite sides of said frame; a plurality of accessory heads each having means for treating a surface, said treating means being different for each accessory head; and means for releasably mounting each accessory head between said second ends of the opposite sides of the frame in a manner permitting pivotal movement of each head about a pivot axis extending between said second ends, each accessory head being releasable from said frame to permit its replacement thereon by another accessory head. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A hand held tool assembly comprising:
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a rigid frame having opposite sides, each side terminating in opposite first and second ends; a hand grip extending between said sides intermediate said first and second ends thereof at a location closer to said second ends than to said first ends; a forearm brace extending between said first ends of the sides at a location to engage the forearm of a user whose hand is applied to said hand grip; a scraper head having a pair of scraping edges; and means for mounting said scraper head between said second ends of the sides in a manner permitting said head to pivot about a pivot axis to allow both of said edges to remain on a surface that is being scraped, said edges being arranged such that one edge scrapes the surface during a pushing stroke of the arm and the other edge scrapes the surface during a pulling stroke of the arm. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A hand held tool comprising:
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a rigid frame having opposite sides, each side terminating in opposite first and second ends; a hand grip extending between said sides intermediate said first and second ends thereof at a location closer to said second ends than to said first ends; a forearm brace extending between said first ends of the sides at a location to engage the forearm of a user whose hand is applied to said hand grip, thereby allowing the application of leverage by the forearm about a fulcrum defined at the hand grip; a working head having means for treating a surface; and means for mounting said working head between said second ends of the sides in a manner permitting said head to pivot about a pivot axis to allow said means for treating a surface to follow the surface that is being treated as the working head is moved along said surface.
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Specification