LU85452A1 - BLOWER BRUSH FOR WAVY HAIR - Google Patents

Description

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The present invention relates to a "blowing brush for waving the hair, of the type comprising a fixed hollow brush body, with outlet openings for hot air, and a series of bars carrying teeth, the bars being distributed longitudinally at the inside said brush body and the teeth projecting from the brush body.

The object of the invention is to produce such a brush, the teeth of which are retractable.

Various waving brushes are already known, the teeth of which arranged in series on bars are mounted so that they can be folded back inside the brush body.

The object of the invention is achieved by the fact that the bars, the teeth of which protrude through orifices provided in the fixed brush body, are freely housed in cavities shaped at the periphery of a * rotary cross-device mounted axially in the brush body.

According to the invention, the rotary device consists of an axis carrying a series of cross-pieces arranged at a distance from one another.

According to one embodiment of the invention, the cross pieces each consist of two branches arranged in alignment with one another on either side of the axis and are offset on the axis relative to the 'other.

According to another embodiment of the invention, the branches of the cross-pieces are offset between them on the axis, [,

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i - 3 - - so that all the sections are arranged in a helix.

The invention will be better understood in the description which follows on the bottom of the appended drawing, by way of example only, showing in:

Figure 1 a partial view of a blower brush according to the invention, partly in perspective and partly broken away;

Figure 2 a cross section in the brush of Figure 1, the teeth being retracted;

FIG. 3, a section similar to that of FIG. 2, the teeth being partially projecting, and

Figure 4 a section similar to that of Figure 2, the teeth being completely projecting in the working position.

As seen in the drawing, the blower brush consists of a hollow brush body 1, through which hot air will be blown, which exits through openings 2 distributed over the periphery of said body.

The brush is provided with teeth 3. These are carried by bars 4 housed inside the brush body 1 and protrude in the working position out of said brush body through orifices 5 · The bars are arranged longitudinally in the brush body and are freely housed in cavities 6 provided at the ends of the arms 7, 7 'of crosspieces carried by a rotary axis 8 extending at the center of the brush body.

In the example shown in the drawing, there are four bars.

The crosspieces 7,7 ′ are arranged at a distance from each other on the axis 8 and offset between them by 90 ° to make as little as possible an obstacle to the hot air blown through the brush body. Indeed, thanks to this arrangement each cross divides the brush body de in its section into two semicircles.

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- 4 - "when the teeth are retracted (figure 2), the liter section for the passage of hot air is approximately 2/3 of the free section with the projecting teeth (figure 4).

the number of bars in the drawing, which is four, can of course be increased, for example to five or six.

the same, to facilitate the flow of hot air, it is further provided according to the invention to separate the branches 7 "7 'from the cross-pieces and to offset them on the axis so as to arrange them in a helix and provide the flow of hot air a helical passage corridor, on the other hand, the profile of these branches 7,7 'is chosen appropriately to facilitate the flow of hot air.

the teeth 3 mounted on the bars 4 are rectilinear and the axes of the orifices 5 provided in the brush body are substantially tangent to the internal periphery of the brush body.

the operation of the device with retractable teeth of a blower brush according to the invention is very simple, according to the connecting rod-crank principle.

Either the brush at rest and the teeth retracted (Figure 2). in this position the teeth are arranged obliquely relative to the spider to which they relate and their ends rest in the corresponding hole 5.

By a slight rotation of the axis 8 (Figure 3) -the rotation of the axis being controlled by any suitable means - the teeth pushed by their cross brace will advance in their corresponding orifices for start protruding from the brush body.

Continuing its rotation, until here reaching approximately 90 ° (Figure 4) relative to its starting position (Figure 2), the axis by its braces will push the teeth out of the body until they are in align-f

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"- - 5 - with the crosspieces and in the working position, where they are" well rigidly held by the edges of the orifices 5 as can be seen in FIG. 4 "

To retract the teeth, it is easily understood that it suffices to rotate the axis 8, here about 90 °, in the direction opposite to the arrow in the drawing. ' ' have

Claims (7)

1. Blower brush for waving hair, of the type comprising a fixed hollow brush body and a series of bars carrying teeth, the bars being distributed longitudinally inside said brush body and the teeth projecting through orifices .. provided in the brush body, characterized in that the bars are freely housed in cavities shaped at the periphery of a rotary cross-member device mounted axially in the brush body. 2. Blower brush according to claim 1, characterized in that the rotary device consists of an axis carrying a series of braces arranged at a distance from each other. 3. Blower brush according to claim 2, characterized in that the crosspieces each consist of two branches arranged in alignment with each other on each side of the axis and are offset on the axis one by compared to each other. 4. Fan brush according to claim 2, characterized in that the crosspieces consist of two branches offset on the axis, so as to provide the flow of hot air with a helical corridor. 5. Blower brush according to claim 1, characterized in that the teeth are straight. 6. Blower brush according to claim 1, characterized in that the axes of the orifices provided in the brush body for the passage of the teeth are substantially tangent to the periphery of the brush body. 7. Blower brush for waving hair as described above and shown in the accompanying drawing. ’Λ n