Tool for painting, depicting and/or varnishing with improved grip

Abstract

 The hand tool for painting, varnishing and/or coating (1) according to the invention, such as a brush, a spatula or a roller, includes a handle portion (3) forming a handle or grip (9) designed to allow hand grasping and manipulation of the brush (1) during use. At least one portion of the outer surface of the handle or grip (9) is covered with a improved grasp pattern (11) comprising one or more surface incisions, increasing the hand's grasp on the handle or grip (9) and reducing slipping by or on hands during use, for example when handle is soiled with paint.

Description

Field of the invention

[0001] The present invention relates to a hand tool for painting, varnishing and/or coating having an improved grasp in the user's hands. This tool can be for example a brush, a spatula or a paint roller.

Prior Art

[0002] For hand varnishing and painting there are currently known brushes provided with a wood handle. The author of the present invention has noted that under certain conditions of use, for example, soiled with fresh paint, wooden handles of the known type tend to slip in the user's hands and can become generally difficult to grasp.

[0003] Therefore, an object of this invention is to provide a brush having a better grasp in the user's hands tending to slip less during use.

Summary of the invention

[0004] This aim is achieved, according to the present invention, by a tool for painting, varnishing and/or coating having the features according to claim 1.

[0005] The advantages achievable with the present invention will become more apparent to the technician in the field by the following detailed description of some, but not limiting, particular examples, non limitative, illustrated with reference to the following schematic figures.

List of the Figures

[0006] 

Figure 1 shows a front view of a brush according to a first particular embodiment of the present invention;

Figure 2 shows a detail of the pattern of the improved grasp of the brush of Figure 1;

Figure 3 shows a detail of the pattern of the improved grasp of the brush according to a second particular embodiment of the present invention;

Figure 4 shows the detail of a cross section of a groove of the pattern of the improved grasp engraved on the handle of the brush of Figure 1.

Detailed Description

[0007] Figures 1, 2 relate to a brush according to a first embodiment of the present invention. Such a brush, indicated by the overall reference 1, includes a handle portion 3, a hair portion 5 and a ring nut portion 7 arranged to fasten the hair portion to the handle portion 3. The hair portion 5, as is known, is composed of one or more tufts of hair or bristles placed side-by-side; the ring nut portion, as is also known, may include a metal band that tightens to form a bundle which holds one or more tufts of hair or bristles, fixing them to the handle portion 3. The handle portion 3 forms, in the present embodiment, a handle 9 more or less elongated, which is preferably made of wood.

[0008] The handle portion 3 can be obtained from hardwood or a plank of wood first by sawing, milling or turning; it can then be finished by sanding disks or belts.

[0009] According to the invention at least part of the outer surface of the handle 9 is covered with an improved grasp pattern 11 arranged to improve the grasp and friction between the handle 9 and the user's hand holding it, compared to the surfaces of the handle without the same pattern 11. This pattern includes a plurality of incisions that preferably forms grooves that intersect with each other.
Preferably the grooves intersect forming one or more networks. Preferably, as shown in Figures 1-3, the grooves are substantially straight, but obviously in other embodiments not shown, the grooves can also be curved.
Preferably the improved grasp pattern 11 is engraved after the handle 9 has been polished with discs or other sanding means; if the handle is not polished, the improved grasp pattern 11 may be implemented immediately after the handle has been rough-cut by sawing, turning or milling.

[0010] Preferably, as shown in Figure 2, the grooves intersect at a substantially right angle ? forming networks with square and/or rectangular meshes. Preferably the angle ? at which two transverse grooves of the network intersect each other, is between 60° and 120°, and more preferably between 75° and 105°: these values are optimal in improving the adhesion between handle and hand.
One of the two directions of the incisions that intersect to form the networks can be substantially tilted at an angle ß with respect to said axis, in the embodiments of Figures 1, 2, the angle ß is approximately equal to 45°.
In the embodiment of Figure 3, the angle ß is substantially null, and one of two directions of the incisions that intersect to form the networks is substantially parallel to the longitudinal axis AL (Figure 3).

[0011] Advantageously, the grooves of the pattern for the improved grasp 11, both horizontal and vertical, have a width B comprised between 0.2 and 0.8 mm, and most preferably, comprised between 0.3 and 0.5 mm (Figure 2,3) .

[0012] Advantageously, the adjacent grooves of the pattern 11 both horizontal and vertical, are separated by a distance A comprised between 0.4 and 1.3 mm, and most preferably between 0.7 and 1 mm.

[0013] The grooves obtained with laser engraving present substantially U shaped cross-sections, as shown in Figure 4, and therefore with substantially vertical walls or at least very inclined at the top of the slot, i.e. with an inclination ? equal or greater than 70-80°. This shape is preferable with respect for example to substantially V shaped cross section grooves, i.e. with walls inclined at less than 70°.
Advantageously, the grooves of the pattern 11 have a depth H of at least 0.8 mm: higher depths are equally effective, but do not lead to further grasp improvement.

[0014] The size of the improved grasp pattern 11 just mentioned have proven to give optimal results to improve the grasp of the handle 9, avoiding slipping from or on the hands.
Preferably the tool handles according to the invention are made of beechwood or hevea brasiliensis wood. Advantageously, the incisions of the improved grasp pattern 11 are made by burning, preferably by power laser rays: lasers allow in fact to maintain particularly reduced machining tolerances and to work nearly any type of wood, tender or hard, leading to extremely high production rates; roughly a wooden handle of a hand tool for painting can be laser engraved in three seconds or even less, according to the complexity of the design to be executed.
However, the incisions can be made with other techniques, for example through milling, sawing or pyrography.

[0015] The examples of embodiments described above are subject to several changes and variations without going beyond the protected scope of the invention.

[0016] The examples and lists of possible alternatives of this application are to be considered as not exhaustive lists.

Claims

1. A hand tool for painting, varnishing and/or coating(1), such as for example a brush, a spatula or a roller, comprising a handle portion (3) that forms a handle or grip (9) arranged for enabling the grasping and handling of the brush with the hands (1) during use, in which at least a portion of the outside surface of the handle or grip (9) is covered by an improved grasp pattern (11) comprising one or more surface incisions arranged for improving the grasp on the handle or grip (9) and reducing slippage in the hands during use.

2. The tool (1) according to claim 1, in which the improved grasp pattern (11) is made through one or more of the following techniques: laser engraving, engraving through burning, pyrography, milling, chip removal engraving, engraving by etching.

3. The tool (1) according to claim 1, in which the improved grasp pattern (11) comprises a plurality of grooves one along the other.

4. The tool (1) according to claim 3, in which at least part of the grooves intersect with each other forming a network.

5. The tool (1) according to claim 3, in which at least part of the grooves intersect at an angle (?) between 60° and 120°, and more preferably between 75° and 105° and most preferably forming for example a network with substantially rectangular or square meshes.

6. The tool (1) according to claim 1, in which the handle or grip (9) is made of wood,
preferably beechwood or hevea brasiliensis wood.

7. The tool (1) according to claim 3, in which most of the grooves have a width (B) comprised between 0.2 and 0.8 mm, and more preferably comprised between 0.3 and 0.5 mm.

8. The tool (1) according to claim 3, in which most of the side by side grooves are separated from the adjacent ones by a distance (A) comprised between 0.4 and 1.3 mm, and more preferably comprised between 0.7 and 1 mm .

9. The tool (1) according to claim 3, in which most of the grooves have a depth equal to or greater than 0.6 mm, and more preferably equal to or greater than 0.8 mm.

10. The tool (1) according to claim 3, in which most of the grooves have a substantially U shaped cross section.

Drawing