RU31393U1 - Plastering tool - Google Patents

Description

2003105670

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Plastering tool

The utility model relates to the field of construction and repair equipment, in particular, to a hand tool for leveling and applying mortar, for grouting plaster surfaces, etc.

A known tool for plastering, containing a handle nailed to a rectangular canvas made of non-knotted coniferous wood, planed with a jointer (1).

The disadvantages of this tool are low manufacturability, high cost of quality wood, a significant percentage of manufacturing defects when nailing the handle.

Known tool for plastering, containing a handle nailed to a rectangular canvas, planed with a jointer, nailed to the working surface of the canvas with nails felt or felt (see ibid.).

The disadvantages of this tool are low manufacturability, high cost of quality wood.

a significant percentage of manufacturing defects during the installation of a pen, felt or felt.

Also known is a tool for plastering, made partially of plastic and containing a handle fixed to the canvas and located in the middle of the latter. (2)

The disadvantages of this tool are low manufacturability, design complexity and a significant percentage of manufacturing defects during the installation of the handle.

The technical task of the utility model is to create a technological and effective tool for plastering, as well as expanding the arsenal of tools for plastering.

The technical result that provides the solution of the technical problem lies in the fact that all labor-intensive manual assembly operations are excluded, the quality of the products is improved, the quality of the plaster surfaces is improved, the cost of raw materials and weight are reduced, the ergonomic characteristics of the tool are improved.

The essence of the utility model is that the tool for plastering, containing a handle fixed to a flat canvas and located in the middle of the latter.

made in the form of a monolithic product of polyurethane foam, and the canvas is made at the same time about the handle.

In particular cases, the web can be made rectangular, and the handle is parallel to its long side and connected to it at the edges by vertical or inclined sections, in another case, the canvas is rectangular, and the handle is parallel to its long side and connected to it in the middle by vertical sections, and along the edges - inclined sections, in another case, the canvas is made square, and the handle is installed perpendicular to the canvas in the center of the latter. In this case, the handle smoothly interfaced with the canvas.

In the drawing, Fig. 1 shows an isometric view of a tool for plastering with a rectangular canvas, Fig. 2 - a tool for plastering with an elongated rectangular canvas, Fig. 3 - a tool for plastering with a square canvas.

A plastering tool containing a cylindrical handle 1, fixed to a flat canvas 2 and located in the middle of the latter, is made of polyurethane foam in the form of a monolithic product, i.e. represents a single part in which the canvas 2 is made at the same time

the whole with the handle 1. In any case (in Figs. 1, 2, 3) the web 2 is a flat product element, the length and width of which are much greater than the thickness, having a flat working surface on one side and a surface mating with handle 1.

In the case of the execution of the tool in accordance with figure 1, the blade 2 is rectangular, and the handle 1 is located along the blade, parallel to its long side and connected to it at the edges by vertical or inclined sections 3, this design of the tool has the trade name “grater.

When executing the tool in accordance with figure 2, the blade 2 is elongated rectangular, and the handle 1 is located along the blade, parallel to the long side of the blade 2 and connected to it in the middle part by vertical sections 4, and along the edges - inclined sections 5, this embodiment of the tool It has the production and trade name “Lattices.

If the tool is made in accordance with FIG. 3, then the handle 1 is installed perpendicular to the center of the square canvas 2, this design of the tool has the production and trade name "Falcon."

In this case, the handle 1 is conjugated to the blade 2 smoothly, along the edges of the working surface of the blade 2 chamfers are made (not marked), and radius fillets (not marked) are made along the edges of the surface of the canvas on which the handle 1 is located.

The manufacture of the tool according to figures 1, 2, 3 is made of foamed polyurethane (polyurethane foam) in molds, thus, the handle and the web are formed simultaneously and are a monolith - a single product, which determines the technical result achieved. Polyurethane foam is a foam obtained from polyester resin and special additives with a breaking stress at compression of at least 150 kPa, which allows using high-tech modern equipment to make high-quality and large quantities of tools. At the same time, the complexity and cost of the product are sharply reduced.

The tool is used to manually apply plaster mortar (for example, insulating and decorative plaster) to the surface, as well as to level the applied plaster mortar, to finish and prepare the plaster surfaces for applying decorative coatings.

for smoothing raw cement-sand and concrete surfaces. Holding the tool by the handle 1, the worker makes movements that provide the necessary interaction of the canvas 2 with the plaster composition and / or with the surface to be treated. Obtained during the hardening of the polyurethane foam smooth and flat working surface of the blade 2 allows you to ensure high purity of the processed surface.

Thus, a technologically advanced and efficient tool for plastering was created, as well as an expanded arsenal of tools for plastering.

At the same time, labor-intensive assembly operations are excluded, the quality of products (manufactured tools) is improved, plaster surfaces are damaged by protruding fasteners, the quality of plaster surfaces is improved, the cost of raw materials and tool weight are reduced, the ergonomic characteristics of the product are improved.

Sources of information

1. Shepelev A.M. Apartment repair on their own, M, Moscow Worker, 1979, p. 47.48, Fig. 12.

2.US No. 5781956, 1998 (prototype). 6

Claims (5)

1. A tool for plastering, containing a handle fixed to a flat canvas and located in the middle of the latter, characterized in that it is made in the form of a monolithic product made of polyurethane foam, and the canvas is made integral with the handle. 2. The tool according to claim 1, characterized in that the canvas is made rectangular, and the handle is parallel to its long side and connected to it at the edges by vertical or inclined sections. 3. The tool according to claim 1, characterized in that the canvas is made rectangular, and the handle is parallel to its long side and connected to it in the middle by vertical sections, and along the edges by inclined sections. 4. The tool according to claim 1, characterized in that the canvas is made square, and the handle is installed perpendicular to the canvas in the center of the latter. 5. The tool according to any one of claims 1 to 4, characterized in that the handle is interfaced with the blade smoothly.