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Articulated Kneeboard for Concrete Finishers

a concrete finisher and kneeboard technology, applied in the direction of scaffold accessories, protective garments, building scaffolds, etc., can solve problems such as not solving common problems

Inactive Publication Date: 2008-12-04
MCDANIEL DARRELL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a comfortable kneeling apparatus for a concrete floor finisher that allows the worker to move over obstacles such as steps between surfaces of different heights without losing their position on the floor. The apparatus has articulated front and rear pans that can pitch or pivot with respect to each other, which helps to keep the weight-supporting components of the apparatus flush with the surfaces and protect the top edge of the step from damage. The front and rear pans can move in different directions, which makes it easier for the worker to move around and perform their tasks."

Problems solved by technology

While all of the above are useful, they do not solve a common problem: that of negotiating steps and obstacles on uncured concrete surfaces.

Method used

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  • Articulated Kneeboard for Concrete Finishers
  • Articulated Kneeboard for Concrete Finishers
  • Articulated Kneeboard for Concrete Finishers

Examples

Experimental program
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Embodiment Construction

[0018]As shown in FIGS. 1-3, an articulated kneeboard embodying the invention has two major components: a knee pan 10 and a toe pan 30. The knee pan contains a resilient knee pad 12, which is secured to the pan by a bracket 14 in a way that makes pad replacement possible when the pad becomes wet, worn or dirty.

[0019]The toe pan 30 is smaller than the knee pan, and has an elevated railing 32 supported by four tabs 34 which extend upward from the sides 36 and ends 38 of the pan. The depth of the pan is about two inches and the railing, which preferably is made from ¼″ round stock, is about and inch above the top of the pan. The railing circumscribes an irregular polygon designed to receive the toe of a worker's boot.

[0020]The two pans are interconnected by at least one articulating link, preferably by a pair of laterally spaced links 20 that are attached by joints such as pins or bolts 22 at either end to the left and right sides 12, 14 of the pans. The pins or bolts pass through hole...

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PUM

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Abstract

A kneeboard for concrete worker has a knee pan which contains a cushioned knee pad, and a toe pan. The pans are interconnected by links which permit them to pitch with respect to one another, so that the pans can remain flush even when they are on different non-coplanar surfaces. This enables a concrete finisher to move over steps and obstacles without damaging the surface of the concrete.

Description

[0001]This application claim benefit of provisional patent application 60 / 932,152, filed May 29, 2007.BACKGROUND OF THE INVENTION[0002]This invention relates to a kneeboard for concrete finishers.[0003]After concrete pads are poured, while they are still wet, they have to be finished to have a smooth, flat surface.[0004]Prior inventors have proposed various kneeboards, all intended to permit a worker to move about a wet concrete floor without sinking into it, so as to minimize disturbance to the floor surface while it is being finished. Representative patents include U.S. Pat. No. 6,347,404 to Iskra, U.S. Pat. No. 5,125,479 to Nemes et al., U.S. Pat. No. 4,789,046 to McDowall, U.S. Pat. No. 4,747,470 to Fernandez and U.S. Pat. No. 4,346,784 to Hammond.[0005]U.S. Pat. No. 2,719,576 discloses a knee-board for cement finishers. There is a single strap, halfway between the knee pad and the toe holder.[0006]U.S. Pat. No. 3,025,526 discloses a kneeling device which straps to the leg, behi...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A41D13/06E04F21/24
CPCA41D13/065E04F21/24
Inventor MCDANIEL, DARRELL
Owner MCDANIEL DARRELL