Cutlery – Razors – Curved edge
Patent
1989-06-23
1990-10-23
Watts, Douglas D.
Cutlery
Razors
Curved edge
30 41, B26B 2100
Patent
active
049642146
DESCRIPTION:
BRIEF SUMMARY
Conventional safety razors have blades mounted in holders of metal or of rigid or semi-rigid plastics material.
The present invention represents a substantial departure from conventional practice and resides broadly in a safety razor in which a multi-edged blade means is mounted in a holder of resilient readily deformable material which presents a skin engaging surface surrounding the blade means, different edges of the blade means being displaceable, relative to each other, to follow local deformation of the said surface.
The blade means can, of course, take various forms. In some of the embodiments illustrated below, the blade means comprise one or more flexible foils having, or each having, a plurality of apertures, preferably circular, with sharpened edges. In another embodiment, the blade means comprise individual blade strips presenting a plurality of rectilinear edges, preferably arranged in opposed pairs, the strips being interconnected by flexible straps.
In presently preferred form of the invention, the support comprises a shaped block of plastics foam material. The holder is held by the user in the manner of a small sponge which is simply rubbed, for example with a generally circular motion over the skin surface.
Such a razor is particularly, though not exclusively, designed for use by women, for example in removing hair from the legs whilst bathing. It has been found that, when used in this manner, users report the efficient removal of hair is achieved, but that the sensation is no different, or very little different from rubbing the skin with a bath sponge.
The fact that the holder is readily deformable makes it very easy to grasp, even in soapy bath water, and also enables it to conform easily to the skin contours.
One material which has already proved to be suitable for the holder is a polyethylene foam, which is readily deformable and also produces a pleasant sensation in the skin. Many other materials could, of course, be satisfactorily employed, and it would be possible to use a material having a surface layer of a different material. For example, a very soft rubber could be covered with a "pimpled" surface layer, or with a layer of foam material.
Some forms of razor in accordance with the invention will now be described in detail, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is perspective view of one form of safety razor;
FIG. 2 is a perspective view of the holder of the razor of FIG. 1;
FIGS. 5 and 6 are view, corresponding to FIGS. 1 and 2, of a second form of safety razor;
FIGS. 5 to 12 are exploded perspective views of some further embodiments invention; and
FIGS. 12A and 12B are scrap-sections on the lines AA and BB in FIG. 12.
The razor shown in FIG. 1 comprises a holder 1 in the form of a disc of polyethylene foam material, having set in its upper face blade a member 2 in the form of a rectangular foil of conventional blade material, such as stainless steel, having a relatively large number of circular apertures whose edges are sharpened. The foil is set in a flat condition, but is capable of flexing, with the holder, to conform to local skin contours.
As shown in FIG. 2, the holder has a rectangular cavity 3 in its upper surface to receive the blade member and some through holes 4 to allow shaving debris to escape through the body of the holder.
The razor shown in FIGS. 3 and 4 is of the same general construction but comprises a larger block of foam material whose upper, skin engaging surface is generally rectangular in plan and slightly convex in side elevation. The holder is also formed with some lateral holes 6 near the upper end of its side walls, to ensure adequate deformability of the holder.
The razors of FIGS. 5, 6 and 7 are all generally similar to that of FIG. 1, but incorporate blade members of different forms.
In FIG. 5, the blade member again comprises a unitary foil 2, but it is extensively slotted at 2A between adjacent rows of apertures to increase the flexibility of the foil.
In each case described above, the holder, particula
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Oglesby Oliver D.
Welsh Norman C.
The Gillette Company
Watts Douglas D.
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