IL36413A - Brush - Google Patents

Description

BRUSH Eric Hichael Roth This invention relates to a brush of the type wherein it, is desirable to be able to rotate or change the angle of the bri^ ties relative to the manual grasping means. Such change of angle is usually a reversal and this is what is achieved by the development of this invention.

Reversal of the angle of bristle slope is desirable, for example, where the bristles are slanted in such a direction relative to the handle to slope toward or away from the brushing direction rather than normal thereto. In such arrangement brushing is customarily performed for the best results, with the bristles advanced in the brush stroke direction (which is usually transverse to the handle) and thus it will be desirable to have the brietles advanced in one direction for right-handed brushing and in the other direction for left handed brushing.

Another reason for reversal of the handle direction relative to the brush may be that the tip of the brush remote from the handle extension direction may be used, in one case, for an application of something such as cleaning fluid or polish but where, thereafter, it is desirable to use such tip, for brushing or polishing. Thus it would be desirable if the handle could be made to selectively extend in opposite directions from the brush to selectively use either end as the handle remote tip. There may be a number of other reasons why it is desirable to reverse the direction of extension of the handle relative to the brush.

Prior methods of achieving reversal of the handle extension direction relative to the brush have involved rotating the bristle holding surface relative to the handle about an axis approximately perpendicular to the bristle surface or about an axis parallel to the bristle surface and transverse to the handle extension direction.

In both cases these arrangements have involved relatively expensive design in comparison to the cost of the article and the cost of such pivotal means frequently includes the cost of re-leasable stop means in each of the selectable positions. ^ This invention provides a brush, wherein bristles or fabric pile acting £j bristles, are supported on a supporting body, which has a defined passage therethrough in the direction of desired handle extension. The handle is provided, slidable in such cylindrical channel and designed to be positioned extending from one or from the other end thereof. A suitable stop means arA holding means are provided so that the handle may be releas-ably positioned at either limiting position, i.e. where it is extending from one end or the other of the brush body. Thus there is provided, a simple means, whereby the orientation of the brush relative to the handle may be reversed by sliding movement of the handle. The handle allows, with the slanted bristles above referred to, either left or right handled bristles.

In drawings which illustrate a preferred embodiment of the inventionϊ Figure 1 shows a top view of a brush in accord with the invention; Figure 2 shows a side view of the brush; Figure 3 shows an end view of the brush; and Figure shows a vertical cross-section of the brush.

In the drawings, a brush body 10 is shaped to support a suitably cut pile fabric 12 which may be of any suitable material, made from the type of materials, including, natural fibres, chemical fibres or synthetic fibres and fastened to be supported by a suitably shaped lower wall 14 of the brush.

The pile fabric which it is preferred to use as the bristle forming member with this invention is produced by nylon strings woven through a cotton backing to provide an extent between stitch apertures double the pile length required.

These extents are then cut to roduce the iles and these are "panned", which is the application of a heated surface to the piles in one sense to produce the required slant.

Inter alia this material may be obtained through Collins & Aikman Corporation, Ca-vel Division, Ca-vel, North Carolina, U.S.A. 27112.

The pile may be attached in any known manner, including (as shown) being clamped by a surrounding O-ring of rubber or plastic 16 in a complementarily shaped groove at the peripheral boundary of the lower wall 14· The form and cut of the pile is, in the form of the brush shown, cut for clamping in an arrangement so that the bristles slant at approximately the same angle to the mean plane of the bristle or pile matrix which with the shape of bristle or pile matrix shown is the plane of the central portion of the bristle matrix.

The body member 10, which is hollow, is provided with similarly shaped apertures 1& at each end, aligned with each other, to define a passageway through the body in the longitudinal dimension of the body, that is, the desired direction of handle extension.

A handle member 20 is provided, whose main functional characteristic is that it is slidable in the defined passageway and may be fixed with the selected either end projecting from the passageway.

In the preferred embodiment the above features are achieved by a handle having end portions shaped to be complementary to and slidable in the apertures IB. The handle is, therefore, slidable to extend from either end of body 10 and stop means are provided constituted by the pin 22 extending downwardly frcm the handle and adapted in each limiting position to arrive in abutment with a surface 24 on the inside of body member 10. It will be noted that the shape of the handle and of its passageway are such that the handle is keyed against rotation relative to 36413/2 the bristle holding body. Release stops to fix the handle in each limiting position are provided by a resiliently depres-sible raised dimple 26 (formed on material extending inwardly from the wall on body 10) which in each limiting position re-leasably holds the pin 22 in contact with surface 24 but where each dimple is designed to be depressed to allow movement thereover of pin 22 when the handle is moved longitudi-nallyi and when it is desired to move the pin 22 and the handle 20 to the other limiting position.

Preferably each end of the handle is shaped to be "faired into" the surface of the body at the limiting position.

The bristles formed by a fabric pile as above described, may be replaced, if desired by conventional bristles or bristle bundles in a plastic or other matrix.

With e ither pile or conventional bristles, these are sloped^ as best shown in Figure 3, so that the majority of the bristles are sloped in the same direction, relative to the fabri matrix and such slope is such that the tips of such majority of bristles are advanced over the roots in a direction transverse t the direction of the handle extension.

Claims (2)

1. 36413/2 I CLAIM. A brush having: a bristle supporting body, vith bristles mounted thereon, said body defining a passageway therethrough, a longitudinally extending handle member longer than the length of said passageway through said body, said handle being slidable through said passageway from a first position where one end extends from said body, to a second position where the other end extends from said body; means for releasably fixing said handle in position, relative to said body, in each of said first and said second positions} and means, in either of said positions preventing rotation of said handle relative to said body wherein the majority of the bristles are eloped in the same direction, relative to the fabric matrix and such slope is such that the tips of such majority of bristles are advanced over the roots in a direction transverse to the direction of handle extension.

2. A brush substantially as hereinbefore described with reference to the accompanying drawings* For the Applicant Dr. Yitzhak Hess.