AU782815B2

AU782815B2 - Hair brush

Info

Publication number: AU782815B2
Application number: AU71944/00A
Authority: AU
Inventors: Alberto Lee Bigio
Original assignee: Plasticos Vandux de Colombia SA
Current assignee: Plasticos Vandux de Colombia SA
Priority date: 1999-11-30
Filing date: 2000-11-30
Publication date: 2005-09-01
Anticipated expiration: 2020-11-30
Also published as: EP1106104A2; ATE371390T1; JP2001204548A; AU7194400A; EP1106104B1; CA2327062C; EP1106104A3; GT200000025U; DE60036183D1; CA2327062A1

Abstract

The hair brush (12) includes an elongated member having a handle segment (13) and a bristle substrate segment (14). The bristle substrate defines a cylindrical core having a smoothly curve, concave central region (16) and radially larger end regions (18, 20). A plurality of bristles (25) are attached over the bristle substrate. In a preferred embodiment, the bristles have substantially equal length such that the outer peripheral portions of the plurality of bristles define a smooth curve, concave shape complementary (50) to the concave central region (16) of the bristle substrate. The bristles are further segmented into groups of small bundles and these bundles are disposed over the peripheral surface of the bristle substrate in a series (31). Each series of bristle bundles are axially spaced apart in a common radial plane passing through the axial center line of the brush. A rectangular bristle substrate (70) with a concave shape (74) is also disclosed herein.

Description

A a

AUSTRALIA

PATENTS ACT 1990 COMPLETE SPECIFICATION NAME OF APPLICANT(S): Plasticos Vandux De Colombia, S.A.

ADDRESS FOR SERVICE: DAVIES COLLISON CAVE Patent Attorneys 1 Little Collins Street, Melbourne, 3000.

INVENTION TITLE: Hair brush The following statement is a full description of this invention, including the best method of performing it known to me/us:- P OPERASUJuI-D 05 O2364712 I Sp doe-05 MS -2- The present invention relates to a hairbrush.

Conventional hairbrushes include an elongated member typically including a handle segment and a bristle segment. Commonly, the bristle segment is a solid, cylindrical shape having a constant diameter throughout its axial length.

There is a need in the marketplace for an anatomically correct hairbrush.

According to one aspect of the present invention, there is provided a hairbrush comprising an elongate member element having a handle segment and a bristle substrate segment on a common axial centerline, the hairbrush having a plurality of bristles attached over the bristle substrate and the bristle substrate defining a solid cylindrical core segment with a :smoothly curved concave central region and radially larger end regions, wherein the i plurality of bristles have substantially equal lengths such that outer peripheral portions of i the plurality of bristles define a smooth curved concave shape complementary to the concave central region of the cylindrical core segment, and the plurality of bristles are segregated into groups of small bundles and are disposed over a solid peripheral surface of the bristle substrate in a series of axially aligned and radially distributed linear bristle rows, each row having a sub-plurality of bristles bundles, each bristle bundle in a respective linear row spaced axially apart along the bristle substrate.

l Preferably, the handle segment is generally cylindrically shaped.

Preferably, the handle segment defines a continuously curved convex region having radially smaller handle end regions.

According to a further aspect of the present invention, there is provided a hairbrush comprising an elongate member element having a handle segment and a bristle substrate segment on a common axial centerline, the bristle substrate defining an elongate rectangular solid core segment with a surface thereof having a smoothly curved concave central region and dimensionally larger end regions, the hairbrush having a plurality of bristles attached over the surface of the bristle substrate, wherein the plurality of bristles P AOPER~SASUu.I-D O52364712 I1,. doc-OWIDS0 -3have substantially equal lengths such that outer peripheral portions of the plurality of bristles define a smooth curved concave shape complementary to the concave central region of the core segment.

Preferably, the plurality of bristles are segregated into groups of small bundles and are disposed over the upper surface of the bristle substrate in a series of axially aligned and laterally spaced apart linear bristle rows, each row consisting of a sub-plurality of bristle bundles, each bristle bundle in a respective linear row spaced axially apart along the bristle substrate.

Preferably, the hairbrush provides an anatomically correct hairbrush.

S Preferably, the hairbrush has an hourglass shape about its bristle substrate.

Preferably, the hairbrush utilizes bristles having a substantially equivalent length such that hourglass shape of the substrate is projected radially outward to the outer peripheral edges of the bristles.

Preferably, the hairbrush provides an anatomically correct hairbrush which requires less force to pass through the user's hair.

Preferably, the hairbrush provides an anatomically correct hairbrush which presents less bristle material in the central mid-region of the hairbrush thereby reducing the force 20 needed to brush one's hair and enhancing the heating and blow drying of one's hair.

Preferably, the hairbrush has a concave substrate, forming a concave shape bristle edges, on a generally rectangular bristle substrate.

Preferably, the hairbrush provides an anatomically correct hairbrush which enables the user to roll-up more hair on the hairbrush due to hourglass shape of the bristle substrate.

Preferably, the hairbrush provides an anatomically correct hairbrush wherein the hourglass shape enables a tighter hold on hair wrapped about the hourglass shape bristle system.

Preferably, the hairbrush provides an anatomically correct hairbrush, which, when utilized, creates hair styles with more volume.

The present invention will now be described by way of non-limiting example only with reference to the accompanying drawings, in which: P.APERZSASUuflD= OSU364712 I p dm05~71V5 -4- FIG. 1 diagrammatically illustrates a perspective view of a hairbrush; FIG. 2 diagrammatically illustrates a side view of the hairbrush of FIG. 1; FIG. 3 diagrammatically illustrates the hairbrush of FIG. 1 particularly showing the hourglass shape or smoothly curved concave central portion of the bristle segment substrate; FIG. 4 diagrammatically illustrates a side view of a second hairbrush having a rectangular bristle substrate with a concave central region; and FIG. 5 illustrates an end view of the hairbrush of FIG. 4.

10FIG 1 diagrammatically shows a perspective view of hairbrush 12, FIG 2 diagrammatically :illustrates a side view of the hairbrush and FIG 3 diagrammatically illustrates a schematic of the hairbrush particularly showing the hour glass shape of bristle substrate segment 14.

The figures are discussed concurrently herein. Similar reference numbers are utilized in all the figures.

Brush 12 includes handle segment 13 and bristle substrate segment 14. As best shown in FIG 3, bristle substrate 14 has a generally cylindrical core segment with smoothly curved concave central region 16 and radially larger end regions 18, 20. Bristle substrate 14 carries a plurality of bristles 25 on its peripheral surface.

20 The plurality of bristles 25 are grouped together in small bundles, one of which is identified as bristle bundle 27 in FIG 1. A sub-plurality of bundles are axially aligned in a row such as row 29 shown in FIG 1. Bristle row 29 is linear such that all bundles in the row of bristles are disposed in a common radial plane extending through the axial centerline of the core. See bristle row 31 in FIG 2. Further, the bristle rows are circumferential or angular offset between adjacent radial row of bristles reduces the force necessary to pass the hairbrush through the hair of the user, enables faster drying of the hair with a blow dryer and requires less heat to blow-dry the hair. Further, the hourglass shape of concave central region 16 (FIG 3) enables faster blow drying time, less heat and less effort to brush the user's hair. The brush also gives the hair styles more volume. The angular offset between radial rows also enhances massaging of the scalp during a brushing session.

P.\OPERSASUu-D= 052U364712 I sp doc-05/07T0 Hairbrush 12 is anatomically configured such that the hourglass shape of curved concave central region 16 (FIG 3) generally matches curves on the user' head.

Handle segment 14 has a continuously curved convex region 40 and radially smaller end regions 42, 44.

The bristles have substantially equivalent lengths 46 such that the outer periphery of a row of bristles defines a smooth curved concave shape about central region 50 that is complementary to the hourglass shape 16 of the bristle substrate 14.

FIG 4 diagrammatically illustrates hairbrush 12 with an elongated, generally rectangular member 43. A cross-sectional aspect of member 43, from the perspective of section line 10 80'-80", is generally rectangular in shape. This generally rectangular cross-sectional shape 0 is carried forward to core segment 70 which is part of the bristle substrate segment. FIG shows the end as a rectangular shape.

Brush 12 includes handle segment 28 and a bristle substrate segment extending over region 72. Bristles 25 protrude upward from the smoothly curved concave central region 74 of the elongated, rectangular shape of bristle substrate segment 72. Concave central region 74 and bristles 25 create a concave plurality of bristles at region 76. The angular offset of bristles 25 in linear rows is shown in FIG. *°o*o The brush may be made of wood, plastic, aluminum or other material. Any combination of those elements can be utilized in the brush. The brush can be manufactured with different lengths and in different colors.

The claims appended hereto are meant to cover modifications and changes within the scope and spirit of the present invention.

Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" and "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.

The reference to any prior art in this specification is not, and should not be taken as, an acknowledgment or any form of suggestion :-.that that prior art forms part of the common general knowledge in Australia.

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Claims

1. A hairbrush comprising an elongate member element having a handle segment and a bristle substrate segment on a common axial centerline, said hairbrush having a plurality of bristles attached over said bristle substrate and said bristle substrate defining a solid cylindrical core segment with a smoothly curved concave central region and radially larger end regions, wherein said plurality of bristles have substantially equal lengths such that outer peripheral portions of said plurality of bristles define a smooth curved concave shape complementary to said concave central region of said cylindrical core segment, and said S 10 plurality of bristles are segregated into groups of small bundles and are disposed over a see: solid peripheral surface of said bristle substrate in a series of axially aligned and radially distributed linear bristle rows, each row having a sub-plurality of bristles bundles, each bristle bundle in a respective linear row spaced axially apart along said bristle substrate.

2. A hairbrush as claimed in claim 1, wherein said handle segment is generally •cylindrically shaped.

A hairbrush as claimed in claim 1 or claim 2, wherein said handle segment defines a continuously curved convex region having radially smaller handle end regions. o

4. A hairbrush comprising an elongate member element having a handle segment and a bristle substrate segment on a common axial centerline, said bristle substrate defining an elongate rectangular solid core segment with a surface thereof having a smoothly curved concave central region and dimensionally larger end regions, said hairbrush having a plurality of bristles attached over said surface of said bristle substrate, wherein said plurality of bristles have substantially equal lengths such that outer peripheral portions of said plurality of bristles define a smooth curved concave shape complementary to said concave central region of said core segment.

5. A hairbrush as claimed in 4, wherein said plurality of bristles are segregated into groups of small bundles that are disposed over said surface of said bristle substrate in a P.OPER\SASSjUu-Dc 05\2364712 Ipa docSmaO57 -8- series of axially aligned and laterally spaced apart linear bristle rows, each row having a sub-plurality of bristle bundles, each bristle bundle in a respective linear row spaced axially apart along said bristle substrate.

6. A hairbrush substantially as hereinbefore described with reference to the drawings. Dated this 5th day of July, 2005 Plasticos Vandux De Colombia, S.A. a by DAVIES COLLISON CAVE Patent Attorneys for the applicant(s) *o a 4 4 o**