U.S. patent number 3,703,764 [Application Number 05/124,217] was granted by the patent office on 1972-11-28 for razor blade assembly.
This patent grant is currently assigned to The Gillette Company. Invention is credited to Roger L. Perry.
United States Patent |
3,703,764 |
Perry |
November 28, 1972 |
RAZOR BLADE ASSEMBLY
Abstract
A razor blade assembly comprising razor blade means clamped
between a platform member and a cap member. The platform and cap
members are provided with dowel and aperture means by which they
are connected together with the blade means held therebetween in
assembled relationship, the dowels extending through holes in the
blade means and the aforementioned aperture means and then expanded
whereby to connect the assembly components together. The platform
and cap members are further provided with runner means slidably
engageable with complementarily shaped rail means of a razor
handle.
Inventors: |
Perry; Roger L. (Lynnfield
Center, MA) |
Assignee: |
The Gillette Company (Boston,
MA)
|
Family
ID: |
22413523 |
Appl.
No.: |
05/124,217 |
Filed: |
March 15, 1971 |
Current U.S.
Class: |
30/32; 30/68;
30/47 |
Current CPC
Class: |
B26B
21/22 (20130101); B26B 21/24 (20130101) |
Current International
Class: |
B26B
21/24 (20060101); B26B 21/08 (20060101); B26B
21/22 (20060101); B26b 021/06 (); B26b
021/52 () |
Field of
Search: |
;30/32,47,51,68,69,84 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Riordon; Robert C.
Claims
Having thus described my invention what I claim as new and desire
to secure by Letters Patent of the United States is:
1. Razor blade assembly comprising a platform member having first
and second end walls interconnected by a front wall and ramp means,
a guard portion extending from the first end wall to the second end
wall and spaced from said front wall, a first depending wall
extending the transverse length of said razor blade assembly at the
front of said platform member and having at its free end an
inwardly directed first flange means forming a first elongated
groove for cooperatively receiving first runner means of a handle,
planar blade means disposed on said platform member and having
cutting edge means extending outwardly beyond said front wall but
short of said guard portion, a cap member having third and fourth
end walls interconnected by a clamp portion having a clamp surface
in engagement with said blade means, and a second depending wall
extending the transverse length of said razor blade assembly at the
rear of said platform member and having at its free end an inwardly
directed second flange means opposed to said first flange means and
forming a second elongated groove for cooperatively receiving
runner means of a handle.
2. Razor blade assembly comprising a platform member having a ramp
portion, razor blade means disposed on said ramp portion, said
razor blade means having a hole therethrough, and a cap member
disposed on said blade means, said cap and platform members having
pin and hole means in alignment with said blade means hole, said
pin means extending through said blade means hole and said hole
means and expanded to effect joinder of said platform member and
said cap member with said blade means disposed therebetween, said
platform member including a first elongated groove for slidably
receiving runner means of a handle and said cap member including a
second elongated groove opposed to said first groove for
cooperatively receiving runner means of said handle.
3. The invention according to claim 1 in which at least one of said
grooves is provided with notch means to facilitate positioning of
the blade assembly on said handle.
4. The invention according to claim 1 in which said platform member
is a molded plastic unitary member and said cap member is molded
plastic unitary member.
5. The invention according to claim 1 in which said razor blade
means comprises at least one planar razor blade.
6. Razor blade assembly comprising a platform member having first
and second end walls interconnected by a front wall and ramp means,
a guard portion extending from the first end wall to the second end
wall and spaced from said front wall, a first depending wall
extending from said front wall and having at its free end inwardly
directed first flange means forming a first groove for slidably
receiving first runner means of a handle, planar blade means
disposed on said ramp means and having cutting edge means extending
outwardly beyond said front wall but short of said guard portion,
said blade means having a plurality of holes therethrough, a cap
member having third and fourth end walls interconnected by a clamp
portion having a clamp surface for engagement with said blade
means, a second depending wall extending from said clamp portion
and having at its free end inwardly directed second flange means
forming a second groove for slidably receiving second runner means
of said handle, and pin and hole means provided on said platform
and cap members, said pin means extending through said blade means
holes, and through said hole means, the free ends of said pin means
being enlarged to join together said platform member and said cap
member with said blade means disposed therebetween.
7. Razor blade assembly comprising a platform member having first
and second end walls interconnected by a front wall and ramp means,
a guard portion extending from the first end wall to the second end
wall and spaced from said front wall, a first depending wall
extending from said front wall and having at its free end an
inwardly directed first flange means forming a first groove for
slidably receiving first runner means of a handle, planar blade
means disposed on said ramp means and having cutting edge means
extending outwardly beyond said front wall but short of said guard
portion, a cap member having third and fourth end walls
interconnected by a clamp portion having a clamp surface in
engagement with said blade means, and a second depending wall
extending from said clamp portion and having at its free end an
inwardly directed second flange means opposed to said first flange
means and forming a second groove for slidably receiving second
runner means of said handle.
8. The invention according to claim 7 in which at least one of said
grooves is provided with notch means cooperative with said handle
for positioning of the blade assembly on said handle.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to safety razors and is directed more
particularly to a razor blade assembly comprising blade means
clamped between two supporting members.
2. Description of the Prior Art
Many safety razors in use today include a head portion which
comprises a platform for receiving a blade member, and a cap or
pair of cap members for holding the blade member securely against
the platform.
Recently, there have evolved razor head units having blade means
and head means as one unit which may have a handle molded thereto
or which may be adapted for connection to a separate handle means.
For example, U. S. Pat. No. 3,488,764, issued Jan. 6, 1970
discloses blade means molded into a disposable unit which may
constitute either a razor head or a complete razor.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a razor head unit
similar to that disclosed in the above-mentioned patent, but in
which the blade means is supported by a platform member and a cap
member.
With the above and other objects in view, as will hereinafter
appear, a feature of the present invention is the provision of a
razor blade assembly including a platform member having ramp means
for supporting razor blade means thereon, planar razor blade means
disposed on the ramp means, and a cap member connected in
rivot-like fashion to the platform member with the blade means
disposed therebetween, the rivot means extending through holes in
the blade means. The platform and cap members are further provided
with runner means adapted to slidably receive a complementarily
shaped portion of a razor handle.
The above and other features of the invention, including various
novel details of construction and combinations of parts, will now
be more particularly described with reference to the accompanying
drawings and pointed out in the claims. It will be understood that
the particular device embodying the invention is shown by way of
illustration only and not as a limitation of the invention. The
principles and features of this invention may be employed in
various and numerous embodiments without departing from the scope
of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference is made to the accompanying drawings in which is shown an
illustrative embodiment of the invention from which its novel
features and advantages will be apparent.
FIG. 1 is an exploded perspective view of one form of razor
assembly illustrative of an embodiment of the invention;
FIG. 2 is a top plan view;
FIG. 3 is a bottom plan view; and
FIG. 4 is a sectional view taken along line IV--IV of FIG. 2
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to the drawings, it will be seen that the illustrative
assembly includes a platform member 2, blade means 4, and a cap
member 6.
The platform member 2 includes end walls 8, 10 interconnected by a
front wall 12 and a ramp 14. The ramp 14 includes an elongated
recess 16 disposed centrally thereof and extending throughout the
length of the ramp. The recess 16 of the ramp 14 is provided with a
series of holes 18 for receiving cap member projection means, as
will be described in detail below. The end walls 8, 10 extend
forwardly, or to the right as viewed in FIGS. 1 and 4, and support
a guard member 20 which extends the length of the platform member
and is spaced from the front wall 12 and the platform 14. Bridge
members 22 further interconnect the guard member 20 and the front
wall 12. A depending wall 24 (best seen in FIGS. 1 and 4) forms an
extension of the front wall 12 and has on its free end a flange 26,
the wall 24 and flange 26 forming in conjunction with the end walls
8, 10, a groove 28 which is suited to receive a runner means
disposed on a razor handle of the type disclosed, for example, in
U. S. patent application Ser. No. 124,216, filed Mar. 15, 1971. The
wall 24 may be provided with a notch 29 to facilitate positioning
of the blade assembly on the razor handle (FIG. 3). Preferably, the
entire platform member, including platform, walls and guard member
comprise a unitary member molded of plastic material.
The blade means 4 comprises at least one planar blade member 30
having a cutting edge 32 and a series of holes 34 arranged
complementarily with respect to the holes 18 of the platform member
2.
The cap member 6 includes end walls 40, 42, interconnected by a
clamp portion 44. The clamp portion 44 includes a clamp surface 46
having an elongated recess 48 from which extend a series of pins
50. The pins 50 are arranged and dimensioned complementarily to the
blade means holes 34 and the platform member holes 18. Extending
from the clamp portion 44 is a depending wall 52 having on its free
end an inwardly extending flange 54. The wall 52 and flange 54 form
a groove 56 which is opposed to the above-described groove 28 and
which, in conjunction with the groove 28, is adapted to receive the
runner means of the razor handle referred to above. Preferably, the
cap member comprises a unitary member molded of plastic.
Referring primarily to FIG. 1, it will be seen that in assembly of
the unit, the blade means 4 is placed upon the ramp 14 of the
platform 2 with the blade means holes 34 in alignment with the
platform holes 18. The cap member 6 is then placed upon the blade
means with the pins 50 extending through the holes 34, 18, as shown
in FIG. 4. The free ends 58 of the pins 50 are then expanded
rivet-fashion (not shown) to lock the components together, whereby
to permanently secure the blade means between the platform and cap
members 2, 6. The blade assembly is then ready for connection to a
handle, of the type above referred to, for shaving operations.
It is to be understood that the present invention is by no means
limited to the particular construction herein disclosed and/or
shown in the drawings, but also comprises any modifications or
equivalents within the scope of the disclosure.
* * * * *