Toilet – Hair device – Comb
Patent
1997-12-30
1999-06-29
Mancene, Gene
Toilet
Hair device
Comb
132143, A45D 2400
Patent
active
059153911
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND
The present invention concerns an electrical appliance which can comb out, comb, and style hair, more particularly frizzy or delicate hair.
Existing electrical appliances are intended to stimulate the scalp by massaging it with slow oscillatory movements. A single or multiple comb is driven in slow oscillatory motion by an electric motor. The comb is not used to style the hair but as a means for getting through the hair and reaching the scalp to massage it. For the massage to be effective, it is assumed that the hair is neither dense nor delicate, since otherwise the hair would be pulled out, broken or tangled.
The problem with combing out a frizzy or tangled hairstyle is more complex than massaging, as each little tangled tuft must be treated separately from the neighboring knot. If a conventional comb is oscillated using an electric motor, as described for example in United States patents U.S. Pat. No. 3,384,096 and U.S. Pat. No. 3,870,056, the result is disastrous for frizzy or fragile hair, since a repetitive force is applied to the first tuft encountered by the comb, resulting in its hairs being torn out or broken. Frizzy hair, because of its oval and curled shape, and a low ultimate tensile stress of 40 to 60 grams (g), suffers a great deal of injury during normal hair styling.
SUMMARY
The main object of the present invention is to propose an electric comb which is specially adapted for combing out and styling delicate or difficult hair. This problem has been overcome by considering that each tuft must be treated differently to the neighboring tuft. To accomplish this, the movements made by a person's fingers when attempting to comb out hair should be reproduced with an electric comb: the fingers do not move parallel to one another but move backwards or forwards with respect to one another.
In order for this to succeed, the comb can no longer be a compact body with teeth moving in the same manner, but each tooth must be provided with motion that is different from or offset from the neighboring tooth. To this end, each tooth in the appliance of the present invention is individually mounted on a drive mechanism which guides it in motion which is offset from the neighboring tooth.
In its main embodiment, the electric comb of the present application is constituted by a handle, an electric motor powered by the mains or by batteries, a casing containing a tooth drive mechanism, and a series of teeth. Each tooth is constituted by a first portion which is outside the casing which comes into contact with the hair, and by a second portion which is inside the casing and is in permanent contact with the drive mechanism.
The tooth drive mechanism is a rotary mechanism including eccentric elements. In its main embodiment, the drive mechanism or "camshaft" is a shaft which is rotated by the motor, and which includes disks or "cams" which are fixed eccentrically on the shaft. The cams are disks of circular, elliptical, or oval cross section.
The second portion of each tooth comprises means for coupling the tooth with the eccentric elements of the drive mechanism. In the preferred embodiment of the present invention, the second portion of each tooth has a shape which approximates a fork with two straight prongs, which receive a cam between them. The two prongs of the fork may be parallel but they may also be at a certain angle so as to be capable of confining a cam between them, which cam guides the fork by its rotation.
A second shaft, or "fixed" shaft, passes through each tooth perpendicular to its length. Rotation of the first shaft causes the cam to rotate eccentrically. This motion is transmitted to the tooth by means of the fork, and the tooth will oscillate about the fixed shaft. As a result, the outer portion of the tooth which is in contact with the hair will oscillate in a regular and uniform fashion. If the cams are elliptical or oval in shape, the distance between the two prongs of the fork must be not less than the major axis of the ellipse or oval.
When the shaft of the camshaft is rotate
REFERENCES:
patent: 3384096 (1968-05-01), Paccione
patent: 3850181 (1974-11-01), Baker
patent: 3897794 (1975-08-01), Branch
patent: 4958647 (1990-09-01), Busch et al.
patent: 5078157 (1992-01-01), Golan et al.
Mancene Gene
Pedro Philogene
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