JPH0320160Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention [Field of industrial application] The invention is an instrument used to create a blur when painting with oil paint.

[Conventional technology]

A mist sprayer is used to create shading with watercolor paints, but oil paints, which are made from different paint paste materials, cannot be diffused using a mist sprayer.

Therefore, a rotating brush for design has been proposed as a device that can produce a blurred pattern similar to that obtained using a sprayer even when using oil paint or other dark paint (see Japanese Utility Model Publication No. 48-6613). Its structure is that a cylindrical brush is supported on one side of a rod-shaped body that has a rotating shaft holding part and a grip part, and the bristles of the brush partially overlap to rub the brush. The cylindrical brush is equipped with a crank handle.

[Problem that the invention attempts to solve]

However, in the above-mentioned known paint blurring device, when the bristles of the rotating cylindrical brush hit the protrusions and come off, the repulsive force due to the elasticity of the bristles shakes off the paint contained in the brush and onto the screen. Since it has a scattering configuration, in which the paint contained in the cylindrical brush is directly sprayed by the elastic repulsive force of the bristles, the paint flies too fast and it is not possible to achieve desired shading and coloring. In other words, the blurring cannot be controlled.

An object of the present invention is to provide a convenient oil paint shading device that can easily express a desired shading pattern.

B. Structure of the invention [Means for solving the problem] The present invention consists of a cylindrical brush that is impregnated with oil paint;
and the paint-containing brush 1 and the cylindrical driving brush 2 whose bristles are in contact with each other are placed in a holder 3.
The shaft 5 of the drive brush 2,
16 is provided with rotation drive means 4, 20, and 28.

[Effect]

When the grip part 3a of the holder 3 is held with one hand and the drive brush 2 is rotated with the other hand or the motor, the drive brush 2 rotates the brush 1 containing paint through bristle-to-bristle contact, and the brush While brushing off the oil paint contained in step 1, it is dispersed by centrifugal force, so it lands on the desired parts of the composition, creating a blurred pattern.

〔Example〕

FIGS. 1 and 2 show an example of a small device, in which a drive brush 2 is attached to a shaft 5 that is integrally equipped with a crank handle 4, and is prevented from turning by, for example, a partial square shaft 5a or a set screw or key. Install boss 2a. The boss 3b at the base of the grip part 3a of the retainer is fitted into the extension of the shaft 5 protruding from the drive brush 2, and the engagement screw 8 screwed into the circumferential groove 5a of the shaft 5 and the boss 3b forms a retainer.

Brush 1 containing paint on the extension of the boss 3b above.
Fit the boss 3c at the base of the support arm 3c and fix with the set screw 9. The supporting arm 3c is integrally provided with a bent portion 3d extending toward the handle 4, and a boss 3f is provided which is inclined with the surface of the supporting arm 3c and the bent portion 3d. Pass the shaft 6 of the included brush 1 through the boss 3f,
The circumferential groove 6a of the shaft 6 and the engaging screw pin 7 constitute a retainer.

The support arm 3c is moved back and forth with respect to the boss 3b to approximately determine the front and back position of the included brush 1 with respect to the drive brush 2. Next, the grip part 3a and the support arm 3c are fixed together with a push screw 9 by setting the opening angle of the grip part 3a and the support arm 3c so as to make it easy to use and the degree of intersection of the brushes 1 and 2.

Then, holding the grip part 3a with one hand, part of the paint-containing brush 1 is dipped in the paint on the plate 10, and rotated by the shaft 6 or the brush stand 1a to soak the paint. When the brush 2 is lifted from the paint tray 10 and the handle 4 is turned, the brush 2 rotates while brushing away the paint from the brush 1, thereby diffusing the paint as fine particles in the direction of arrow c.

Therefore, it is possible to quickly draw a shading pattern in the necessary parts of the composition, by covering the rest with paper or the like, if necessary.

FIGS. 3 to 7 illustrate a large-sized device that can also be driven by power, and the containing brush and the driving brush 2 are cantilevered in parallel to a roughly shaped plate frame 11 with a grip portion 11a formed on the top surface. to support. Containing brush 1 is the fifth
As shown in the figure, the shaft 12 is rotatably fitted into a bearing 13 fixed to the plate frame 11, and the locking mechanism 12a,
14 will be provided. 13a, 15 connect the bearing 13 to the plate frame 1
This is a flange and nut for fixing to 1.

The drive brush 2 also has a shaft 16 with a bearing 17, retainers 16a and 18, and a flange 17 in the same manner as above.
a. Rotatably receive it on the plate frame 11 with the nut 19. A joint 16b is provided at the end of the shaft 16, and is coupled to a joint 20a at the end of an external flexible shaft 20. 21 is an outer tube of the flexible shaft 20, which is fixed to the bearing 17 with a joint nut 22.

Reference numeral 24 designates a paint tray disposed below the paint brush 1, which is integrally provided with a U-shaped mounting plate 25 on the front, with a concave portion 26 of a clip 25a at the top thereof being engaged with a convex portion 26a of the plate frame 11; , can be removed at any time as indicated by the chain line 24' in Figure 4.

When the drive brush 2 is rotated in the direction of the arrow a in FIG. 3 from a motor (not shown) via the flexible shaft 20, the brush 1, which is in contact with the drive brush 2 through its bristles, is also rotated in the opposite direction b, and the brush 2 is rotated in the opposite direction b. Contains 24 paints. The brush 2 brushes off the paint and diffuses it downward c. Therefore, by holding the grip portion 11a in the hand as shown in FIG. 5, it is possible to express blurring in the same way as in the previous example.

In some cases, it is also possible to stop the power drive and manually rotate the drive brush 2 by fitting the manual handle 28 into the hollow part of the shaft 10 of the drive brush 2.

Furthermore, in the case of a large painting such as a mural, the board frame 1
A small drill motor is supported on a bracket (not shown in the figure) provided integrally with shaft 10, and a worm gear is used to connect shaft 10.
It can also be directly connected to.

FIG. 7 shows an embodiment in which the direction of diffusion by the drive brush 2 is changed to the front, and an arc-shaped guide plate 30 is provided below the brush 2. Also, guide plate 3
A small roller 31 that allows a brush is provided at the front of the drive brush 2, which brushes away the paint on the brush 1, rotates along the guide plate 30, moves while rotating the roller 31, and separates from the roller 31. The bristles of the brush that bounce off the surface cause the paint to scatter forward.

An example is shown in which the guide plate 30 is attached with a rear end locking portion 30a locked to the front edge of the paint tray 24, and a shaft 32 of a roller 31 locked to a locking groove 33 of the plate frame 11. In this embodiment, it is better to raise the drive brush 2 slightly upward along the long bearing hole 29 of the plate frame.

The device of the present invention can also be used for applying paint.

C. Effects of the invention By rotating the drive brush manually or by power, the paint-containing brush is rotated through bristles-to-bristle contact, and the paint contained in the paint-containing brush is sequentially brushed off with the drive brush. The centrifugal force of the drive brush causes the paint to scatter and spread, so by adjusting the rotation of the drive brush, you can change the degree of spread of the paint at will, allowing you to skillfully blur even oil paints and other dark paints. can be expressed. Moreover, it does not scatter more than the necessary amount of paint, making it effective as a shading device for paint, especially oil paint.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the present invention, Fig. 2 is a front view of a part thereof, Fig. 3 is a front view of another embodiment, Fig. 4 is a longitudinal sectional plan view taken along the line of Fig. 3, and Fig. 5 is a front view of a part of the invention. Figure 3-
6 is a cross-sectional view taken along the line shown in FIG. 5, FIG. 7 is a longitudinal sectional front view of a portion of another embodiment, and FIG. 8 is a left end view thereof. 1... a paint-containing brush, 2... a driving brush, and 3... a holder.

Claims (1)

[Scope of utility model registration request] A cylindrical brush containing oil paint and a cylindrical driving brush whose bristles are in contact with the paint-containing brush are rotatably attached to a holder, and the shaft of the driving brush is provided with a rotation driving means. An instrument that expresses shading with oil paint.