US3066413A - Safety razor - Google Patents

Description

4, 1962 R. F. SAAVEDRA ETAL 3,056,413

SAFETY RAZOR Filed Sept. 15, 1960 INVENTORS RAMOIYN F2 SAAVEDRA HIPOLI'TO 0. CARR/A560 Mexico Filed Sept. 15, 196i), Ser. No. 56,196 2 Claims. (El. 30-339) This invention consists of a new, handy device for shaving and hair-cutting, which construction has been improved, being difierent from known brands in that it is provided with simplified media to grasp and hold the Gillette-type razor blades in a new curvecut angle. This new and simple device offers more security against cuts, as the edges of the blade are curved and covered on an also curved base by means of over-lapped protective borders; the new cutting angle achieved by this curvature is practically perfect, as it slides parallel to the surface of the skin, and perpendicular to the hair angle, thus allowing a smooth cut and more comfort in shaving.

In present equipment designed for thin Gillette-type steel blades, the blade is held by several pieces which curve it transversely to a longitudinally channeled shape, giving a straight line to the cutting edges; exactly the o posite of this invention.

In our device we have achieved the utmost simplicity. It consists of one simple unit and handle, free from screws, bolts, etc., and is small enough to be carried along in a pocket; its handle may be used to protect the blade if desired; its manufacturing cost is very low, as its construction requires very little material, which may be plastic, metal or any other suitable material. The system used as a base and to firmly aflix the blade, as well as the system for fixing and releasing same, has been reduced to one single unit. The easy and quick disposal of hair has been accomplished by slots on the curved base of the holder which forms natural borders, thus covering cutting edges for protection; all this in one single unit not only saves material, but also reduces weight.

Characteristic details of this device are clearly shown in the following description and drawings attached as an illustration of same; and on these drawings the same reference characters are used to indicate the same parts on the six figures.

FIGURE 1 is a top plan view of a safety razor in accordance with the present invention;

FIGURE 2 is a crosssectional view taken on line AA of FIGURE 1;

FIGURE 3 is a bottom plan view of the razor shown in FIGURE 1;

FIGURE 4 is a side or edge view of the razor shown in FIGURE 1;

FIGURE 5 is a view in perspective of a modification of the razor in accordance with the present invention, and

FIGURE 6 is a view in perspective of another modification in accordance with the present invention.

Referring to the drawing, a preferred modification in accordance with the invention is shown in FIGURES 1-4 as being formed in one solid fiatshaped unit and may be made of any hard material, such as plastic, wood, metal, etc.

The upper part (a) of the unit is intended to hold and affix a blade (c); and the lower part (b) to serve as a handle.

As illustrated, the upper part (a) of unit has a rectangular shape, slightly longer and wider than the length and width of the razor blade. The upper face is provided with two fastening claws 1, one at each edge, and lower face with another two, and the space between the two groups of fastening claws, intended to serve as a base to the razor blade, is curved as to allow the blade lififihfiilfi Patented Dec. 4, 1962 (c) grasped by the fastening claws 1 to take the same shape, thereby bending the cutting edges into a curve. On the upper face there is a slot 2 between the fastening claws 1 and on the lower face, also between the fastening claws 1, there is a notch 9.

On this part of the device (a) and parallel to the sides, are two parallel slots 3, one at each side, for the purpose of releasing the cut hair.

On this same part (a) of the device, across the center and under the slot of the blade (0), there is a protruding bar 7 which has at its center a small salient circular button 8 to affix and keep the blade firmly in place by the center, whether the blade has a round slot, as is the case of Gillette, or a rhomboidal slot, as in other brands of steel blades. This bar, has been designed for the same purpose of maintaining the blade firmly in place.

As shown on FIGURE 2, the sides of the slots 3 have an opposite inclination to enable easy disposal of the cut hair and cleaning of the device, leaving at each side of the base a border 4 which overlaps the cutting edges of the razor (c), offering full protection against cuts.

Part (b) of the device, as mentioned before, is intended to serve as a handle and may be given any appropriate shape, with rounded angles for better comfort.

This handle, as shown on FIGURE 5, may be placed vertically from the center of the lower face of part (a) of the unit, the same as in common devices.

Also, as shown on FIGURE 6, the handle may be combined to a scissor-shaped part 5 by fastening it with a bolt 6 in such a way that the whole unit may be folded into part 5 as in a case.

To place blade (c) into the device, one end of blade is inserted into the lower fastening claws l, which are longer than the upper ones so that the blade may slide lower down, and by pressing upper part of blade with thumb it is placed into the upper fastening claws through a forward movement, which automatically adjusts the blade into place on the bar 7 and salient button 8.

In this way, the blade remains fixed in place on the curved face and through this curvature of its edges, the cutting angle becomes a most perfect one; that is, parallel to the delineating surface and perpendicular to the hair angle, thus allowing a smooth cut with the least effort possible.

To release the blade, simply introduce a thin coin or the tip of the thumbnail into the notch 2, pushing downward so that the blade may spring at that end and turn loose from the button and bar.

The device is perfectly safe to use as cutting edges of the blade (0) are curved to an arch and covered to more than 1 millimeter on the lateral protective borders 4v.

This new invention may be manufactured of plastic, metal or any other appropriate material, at a minimum cost and in view of the fact that it includes no mechanism, duration is practically indefinite.

Although certain specific embodiments of the invention have been shown and described, it is obvious that many modifications thereof are possible. The invention, therefore, is not to be restricted except insofar as is necessitated by the prior art and by the spirit of the appended claims.

We claim:

1. A blade holder for use with a slotted, flexible double edged safety razor blade, comprising a rigid rectangular base having a convex blade supporting surface that is curved longitudinally, said base being slightly wider than a blade to be mounted thereon and having a pair of longitudinally extending slots respectively adjacent each side of said base, a pair of claws on each end of said base and overlying the corner portions of said supporting surface to define blade receiving recesses between said claws and said surface with the opposed ends of said pairs of claws spaced a distance less than the length of a blade and the opposed inner ends of said recesses at one end of said base being spaced a distance greater than the length of a blade from the free ends of the pair of claws at the other end of said base to enable insertion of a blade end under one pair of claws to the limit of the recesses thereunder whereupon the other end of said blade may be pressed past the other pair of claws to the supporting surface and then slid longitudinally into the recesses under such other pair of claws, said base having a notch opening through its end between said other pair of claws to enable reverse movement of a blade to release it from said claws, means protruding from said supporting surface centrally thereof for engaging in the blade slot to position a blade in arched position on said surface with its cutting edges overlying said longitudinal slots, the opposed sides of said longitudinal slots diverging toward the opposite surface of said base to accommodate free passage therethrough of cut hair and the like, and a handle coplanar and integral with said base and extending from the' end thereof opposite said notched end.

2. A blade holder for use with a slotted, flexible double edged safety razor blade, comprising a rigid rectangular base having a convex blade supporting surface that is curved longitudinally, said base being slightly wider than a blade to be mounted thereon and having a pair of longitudinally extending slots respectively adjacent each side of said base, a pair of claws on each end of said base and overlying the corner portions of said supporting surface to define blade receiving recesses between said claws and said surface with the opposed ends of said pairs of claws spaced a distance less than the length of a blade and the opposed inner ends of said recesses at one end of said base being spaced a distance greater than the length of a blade from the free ends of the pair of claws at the other end of said base to enable insertion of a blade end under one pair of claws to the limit of the recesses thereunder whereupon the other end of said blade may be pressed past the other pair of claws to the supporting surface and then slid longitudinally into the recesses under such other pair of claws, said base having a notch opening through its end between said other pair of claws, and means protruding from said supporting surface centrally thereof for engaging in the blade slot to position a blade in arched position on said surface with its cutting edges overlying said longitudinal slots, the opposed sides of said longitudinal slots diverging toward the opposite surface of said base to accommodate free passage therethrough of cut hair and the like.

References Cited in the file of this patent UNITED STATES PATENTS 855,608 Ballreich June 4, 1907 1,008,648 Kiefer' Nov. 14, 1911 1,020,796 Buck Mar. 19, 1912 1,134,706 Somers Apr. 6, 1915 1,135,362 Craven Apr. 13, 1915 1,308,730 Benn July 1, 1919 1,690,557 Smith Nov. 6, 1928 1,735,140 Speirs Nov. 12, 1929' 2,587,235 eferlis Feb. 26, 1952 FOREIGN PATENTS 655,943 Great Britain Aug. 8, 1951

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