MORTAR TROWEL PATENT

INVENTION MODEL PRESENTATION This patent for a utility model aims to reap a model of Mortar Trowel for general use and large scale in the civil construction and the like, to improve its use, efficiency and performance before their similar existing.

This type of tool has been known for more than five thousand years A.C. by Mesopotamia and Egypt, and its design has not changed too much, but the process of manufacture and its materials. BRIEF STATE OF TECHNICAL DESCRIPTION

To use on a large scale d of this type of tool, comprised of a lamina of steel similar to an isosceles triangle or equilatero, with a diagonal cut, initiated on the basis central lower, finishing the sides of the front lamina. Starts on this same basis a strengthening so that the rod is built where and folded to pressure serves as a plug for the handle.

PRESENTATION OF EXISTING PROBLEMS IN STATE OF TECHNICAL

Even with the wide use of this type of tool, some drawbacks can be attributed, such as smaller area of mortar placement layer (placing of mortar on the brick next to be seated) and leftover (mortar expelled on the side of bricks when pressed).

Other problems with the current are muscle pain for long periods of work, because the position where cast and the rod of the handle, in the back of the lamina base, which when filled with mortar exercise a pressure in lamina, reflecting on the grip (handle), forcing the worker to increase the force in fists and muscles causing a discomfort for being repetitive.

PRESENTATION OF SOLUTION ON OUTLINE

The muscle tiredness, also cause the less quantity of mortar on the lamina, thereby generating less productivity of settlements. Cutting diagonally from the lower base forward, leave the lamina with a lower edge of the mortar placement layer. In view of these problems and the purpose of overcomes them, a new design was developed to collect the mortar, object of this patent, which is to change the shaft of the handle, bringing it more to the center of the lamina, thereby a better balance of forces and also reverse the basic diagonal, placing it to bring, thereby increasing the area of mortar placement layer and equaling the amount collected.

This form of construction of harvesting of mortar solve the drawbacks discussed, since, with increasing area of border, the weight of mortar harvested is more scattered, so the volume is not concentrated.

DRAWINGS/DESIGN PRESENTATION Moreover, the operation of collection of mortar with the construction described, makes the tool extremely more ergonomic to work due to the fact that the rod be more centralized, avoiding the muscular fatigue of the balance of forces when full.

The attached figures show the new design of the trowel mortar, object of this patent, in which

Figure 1, perspective

Figure 2, cutting AA

Figure 3, cutting BB

Figure 4, current design DETAILED DESCRIPTION OF INVENTION /

MODEL

In accordance with the figures illustrate, as related above, the model of harvesting of mortar, object of this patent, consite in a lamina of steel 1, in the shape of a tip of arrow delta wing and with

diameter of 3 points lower back and even size. The front edge 2, the lamina starts with a thickness less than two rear 3, in order conico, leaving it more flexible, facilitating cleaning and cutting the mortar. In central meeting of both tips, a strengthening 4, starts to form in the sense centre edge, starting the rod 5, semi-oval. Climbing an angle, 6 of 110 degrees, with a sense bending 7, of 110 degrees, followed by two bites 8, ending ai the rod 5 to plug the handle 9, which at the end of it, a screw 10, holds a rubber 11 , for impact of settlement.

Of course, to reap the mortar with such construction can be obtained in various sizes to meet different needs of users of this type of tool.