Brushing – scrubbing – and general cleaning – Electrostatic cleaning – Hand implement
Patent
1990-12-14
1992-09-29
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Electrostatic cleaning
Hand implement
151591, 15186, 132219, 361221, A46B 908
Patent
active
051504910
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a hair brush adapted to prevent charging of the bristles and hair due to brushing
BACKGROUND ART
A hair brush is already known which is adapted to prevent charging of hair due to brushing so as to arrange hair satisfactorily (see Examined Japanese Utility Model Publication SHO 63-30271). This hair brush comprises a bristled portion and a handle, and the bristled portion is provided with a multiplicity of electrically conductive bristles over the surface thereof. The bristled surface has an elongated small mount aperture formed at each of its widthwise opposite ends and extending longitudinally of the surface approximately over the entire length thereof. The mount aperture has implanted therein a strip of antistatic material arranged closely continuously in the longitudinal direction and projecting to a level lower than the bristles. The antistatic material is prepared from a large number of acrylic fibers having adsorbed monovalent copper ion and incorporated therein metallic copper separated out by reduction, by spinning the fibers to obtain an arrangement of many pieces of yarn and connecting the yarn pieces together into a strip by stitching the lower portion of the arrangement.
With the conventional hair brush, the antistatic material is implanted in the elongated mount aperture at each end of the bristled surface and is as high as about one-half the height of the bristles, so that the material is low in stiffness and becomes bent down when used for a short period of time, failing to exhibit a satisfactory antistatic effect. Moreover, the antistatic material, which is arranged closely continuously in the longitudinal direction, becomes an obstacle when hair is brushed, rendering the hair brush difficult to draw through hair easily and making hair difficult to brush smoothly. The hair brush has another problem in that it is unsanitary and becomes impaired in antistatic effect since dandruff, dust or the like is trapped in the mount aperture.
An object of the present invention, which has been accomplished in view of the foregoing situation, is to provide a hair brush having a stiff antistatic member, inexpensive, sanitary and capable of fully performing an antistatic function.
DISCLOSURE OF THE INVENTION
To fulfill the foregoing object, the present invention provides the following technical means.
In a hair brush embodying the invention and comprising an electrically conductive brush base 2, a handle 4, a multiplicity of electrically conductive bristles 5 provided upright on the surface 2a of the brush base 2, and an antistatic member 9 made of electrically conductive fiber and provided along each of widthwise opposite end portions of the brush base surface 2a longitudinally of the brush base 2, a multiplicity of small holes 7 are formed in the brush base 2 at each widthwise end portion thereof and arranged at a spacing in a row longitudinally of the base, the antistatic member 9 being so provided as to project from the multiplicity of small holes 7 slightly beyond the surface 2a.
When the brush of the invention having the above construction is used, causing the friction between the bristles 5 and hair to charge the bristles 5 and the hair, the static charge acquired by the bristles 5 is conducted through the grounding piece 6 provided on the handle 4, while the static charge acquired by the hair is allowed access to and/or conducted to the antistatic member 9 made of conductive fiber to effectively cause corona discharge between the antistatic member 9 and the hair, whereby the charge on the hair can be neutralized smoothly. Since the antistatic member 9 is projected from the small holes 7 beyond the surface 2a by only a small length required for the corona discharge, hair can be brushed without any trouble. Furthermore, the brush is sanitary since dandruff or dust will not be trapped in the small holes 7. The antistatic member is stiff, will not bend down, therefore retains the contemplated antistatic function and permits satisfactory hair brushin
REFERENCES:
patent: 3084700 (1963-04-01), Fischer et al.
patent: 4083073 (1978-04-01), Bernardini
patent: 4500939 (1985-02-01), Gueret
patent: 4797966 (1989-01-01), Fong
Alexander Reginald L.
Hornsby Harvey C.
Ikemoto Burashi Kogyo Kabushiki Kaisha
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