RU2627518C1 - Semi-mechanical trowel - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: semi-mechanical trowel consists of two parts connected together by a hinge joint, where the first part is a sheet base, which can have different geometric configurations along the perimeter, and the working edge can be even or serrated. On the opposite edge, with respect to the working edge, there is a tongue projecting laterally and parallel to the grip handle, bent downwards at its end. A hinge joint blocking retainer is installed on the tongue; the first element of the hinge joint is installed on the bottom side of the sheet base. The second part of the semi-mechanical trowel is the grip handle of the tool, equipped at its beginning with the second return element of the hinge joint, and in its continuation having a handle, a bend protecting the fingers from pinching in the folded state of the trowel, an anti-deformation abutment towards the rear side of the sheet base in the form of a cross bar, and an abutment for the forearm with a fastening belt, mounted on the bend of the grip handle. The materials for manufacturing the semi-mechanical trowel have a wide range of applications, such as: black steel, stainless steel, all non-ferrous metals, rigid polymers, wood.

EFFECT: reducing the labour intensity of the process of applying and levelling painting and plastering solutions when working on walls and ceilings and increasing the production rates.

3 cl, 5 dwg

Description

The invention relates to a tool used in the field of wet plastering and painting, is intended for faster application of liquid solutions to walls and ceilings. The innovations of this plaster trowel are defined by two signs:

- The first distinguishing feature is the ergonomics of this tool, due to more comfortable work.

- the second distinguishing feature is the increase in the speed of painting and plastering.

For these distinguishing features, such tools are known as: a plaster spatula (trowel), a trowel, a scoop, a trowel, a bucket, a trowel, which are intended for wrapping and smoothing wet plaster materials on the surface.

The disadvantage of these tools is the lack of semi-mechanical components in them.

The tasks to be solved by the claimed semi-mechanical trowel are:

1. Reducing the complexity of the process of applying and leveling paint and plaster mortars when working on walls and ceilings

2. The increase in production rates during the painting and plastering.

These problems are solved due to the fact that the semi-mechanical trowel can have even sheet bases with different geometric configurations of the perimeter boundaries, where the working edge can be either smooth or serrated.

The drawings show a semi-mechanical trowel.

In FIG. 1 depicts a trowel in the unfolded state, with a trapezoidal sheet base 1, where a tongue protruding from the side and parallel to the grip handle 2, bent down at its end, is installed on the opposite edge relative to the working edge. A latch 3 is installed on the tongue, blocking the operation of the swivel, working as a switch and a switch of the mechanical function of folding the trowel.

In FIG. 2 shows the handle for gripping the tool 4.

In FIG. 3 shows: a part of the hinge 5 fixed on the lower side of the sheet base, along its central axis and a mating part of the hinge 6, fixed on the gripping handle of the trowel, handle 7, bending the handle 8 downward, designed to protect the fingers from jamming in operation, at its end the anti-deformation emphasis of the sheet base 9 is installed in the form of a transverse bar resting against the back side of the sheet base in order to exclude its distortion in operation. A hinged element has an emphasis on the forearm 10 with a seat belt 11, which relieve tension from the hand at the time of loading of the solution.

Before loading the solution on the sheet base, the trowel in the unfolded state is blocked from being folded by the action of the thumb on the tongue, by pressing the latch, by moving the tongue to the lower horizontal position with subsequent lateral movement of the finger to switch the latch to the “closed” state. After loading the solution onto the sheet base, the thumb exerts pressure on the tongue through the clamp in a downward and lateral direction, thereby translating the clamp into the “open” state. Next, the thumb smoothly reduces the pressure on the bent tongue and rises, opening up the possibility of a smooth movement of the leaf base down, under the action of gravity. Simultaneously with the downward movement of the sheet base, already loaded with mortar, the hand of the plasterer painter, in conjunction with the elbow movement, gradually changes its position in the direction of rise, in order to prevent the solution from sliding off the working surface, and until the hand is under leaf base. Then either a smear on the wall or a smear on the ceiling.

This semi-mechanical trowel is designed to work not only with one hand, but also with two, for which a second set of all necessary parts is installed on the elongated model of the trowel.

In FIG. 4 shows a semi-mechanical trowel of a rectangular shape with a solution loaded into it.

In FIG. 5 depicts a semi-mechanical trowel of rectangular shape in the work on the wall.

The semi-mechanical trowel consists of two parts interconnected by a hinge, where the first part is a sheet base, which can have different geometrical configurations around the perimeter, and the working edge can be even or serrated, a protruding side is installed on the opposite edge relative to the working edge and parallel a tongue bent downward at its end to the grip handle, a swivel lock lock is installed on the tongue, the first hinge element is installed on the underside of the sheet base connections, the second part of the semi-mechanical trowel is the handle of the tool gripper, equipped at the beginning with a second counterpart of the articulated joint, which continues to have a handle, a bend that protects the fingers from being pinched when the trowel is folded, an anti-deformation stop in the back of the sheet base in the form of a transverse bar and an emphasis on the forearm of the hand with a tightening belt mounted on the bend of the grip handle.

Claims (3)

1. The semi-mechanical trowel consists of two parts interconnected by a swivel, where the first part is a sheet base, which can have different geometric configurations around the perimeter, and the working edge can be smooth or serrated, a protruding side is installed on the opposite edge relative to the working edge and parallel to the grip handle, the tongue bent down at its end, a latch for locking the swivel is installed on the tongue, the first element is pivotally mounted on the lower side of the sheet base about the connection, the second part of the semi-mechanical trowel is the grip handle of the tool, equipped at the beginning with the second response element of the hinge connection, in the continuation of which has a handle, a bend that protects the fingers from being pinched when the trowel is folded, an anti-deformation stop in the back of the sheet base in the form of a transverse straps and forearm of the arm with a fastening belt mounted on the bend of the gripping handle, materials for the manufacture of industrial semi-mechanical trowels have a wide range of applications, and namely: black steel, stainless steel, all non-ferrous metals, hard polymers, wood. 2. Semi-mechanical trowel according to claim 1, characterized in that the hinge lock latch can be mounted not on the tongue, but on the grip handle. 3. Semi-mechanical trowel according to paragraphs. 1 and 2, characterized in that it can be manufactured for use with two hands, for which an additional set of parts is installed on it: the grip handle, hinge, tongue and retainer.

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