Cutlery – Razors – Knockdown and/or folding
Patent
1990-01-30
1991-07-16
Eley, Timothy V.
Cutlery
Razors
Knockdown and/or folding
30 49, B26B 2100
Patent
active
050313169
DESCRIPTION:
BRIEF SUMMARY
This invention relates to safety razors comprising a flexible razor blade unit secured to a handle by connecting means arranged to permit free flexure of the unit in use of the razor.
The blade unit is readily flexible in response to forces encountered during normal use, about an axis, or axes, parallel with the plane of the blade (or blades) and extending substantially perpendicular to the cutting edge (or edges) thereof.
The present invention is particularly concerned with means by which such a unit is connected to a razor handle so as to be adequately supported and guided thereon, whilst permitting the required flexure of the unit in use.
For convenience of description, the blade unit will be assumed to be a tandem blade unit, having a pair of parallel blades whose respective cutting edges are held in spaced parallel relation, so as to act in tandem on the skin of a user.
In a preferred form of the invention, the connection means comprise slide means for mounting and guiding the blade unit for reciprocal movement relative to the handle in a direction substantially perpendicular to the planes of the blades, the slide means being located at the mid-length of the blade unit, and further connections, to either side of the slide means, permitting relative movement of opposite end portions of the blade unit, relative to the handle, in directions generally parallel with the blade edges.
With this arrangement, the slide means serve to centralise the blade unit longitudinally on the handle, whilst permitting free movement of the central part of the blade unit towards and away from the handle, and the further connections, which are conveniently formed as pin and slot connections permit concomitant movement of the opposite end portions of the blade unit towards and away from each other.
The invention will now be described in detail, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view, from below the handle and blade unit, both partly broken away, prior to assembly;
FIG. 2 is a perspective view from below the handle assembled with the blade unit, the blade unit being shown in phantom;
FIG. 3 is a cross-section of the assembled razor; and
FIG. 4 is a rear view of a portion of the assembled razor.
The illustrated razor comprises a flexible head or blade unit 1 including a tandem pair of wafer thin, single edged blades 2 (FIG. 3) separated by a spacer and set permanently in a highly flexible moulded plastics support structure 3 providing a comb-like skin guard 4 ahead of and below the blade edges and a segmented cap portion 5 overlying the blade pair.
The razor handle is constituted by a unitary moulding of plastics material formed to provide an elongate grip portion 6 (FIGS. 1 and 2) and a generally plate-like handle upper portions 7 on which the blade unit 1 is mounted.
The connection means include a slide means comprising a central post 10 of rectangular cross-section, which depends from an underside of the blade unit and extends substantially perpendicular to the planes of the blades at the mid-length of the blade unit, and a socket 11 formed at the upper end of the handle. The socket is also of rectangular cross-section and is sized to receive the post 10 with an easy sliding fit.
With the post 10 located in the socket 11, the blade unit 1 is centralized longitudinally relative to the handle and restrained from rotating about the handle, but is guided for easy sliding movement towards and away from the handle, in a direction lengthwise of the post 10.
The further connections are disposed to either side of the central post 10 and permit and constrain the opposite end portions of the unit to move, relative to the handle, towards and away from each other, generally parallel to the blade edges.
Each of the handle upper portion 7 is formed with a support leg 12 terminating at a forwardly projecting pin 13 of part rounded cross-section In the assembled razor, the pins 13 are located in and trapped by rearwardly facing pockets 14 (FIGS. 3 and 4) formed at the underside
REFERENCES:
patent: 4227302 (1980-10-01), Torrance
patent: 4443939 (1984-04-01), Motta et al.
patent: 4459744 (1984-07-01), Esnard
patent: 4516320 (1985-05-01), Peleckis
patent: 4720917 (1988-01-01), Solow
patent: 4754548 (1988-07-01), Solow
patent: 4866844 (1989-09-01), Burout, III
Eley Timothy V.
Fridie Jr. Willmon
The Gillette Company
LandOfFree
Safety razors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety razors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety razors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-121887