US3169313A

US3169313A - Floating cutter housing for electric razors

Info

Publication number: US3169313A
Application number: US279888A
Authority: US
Inventors: Joseph B King
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-05-13
Filing date: 1963-05-13
Publication date: 1965-02-16
Anticipated expiration: 1982-02-16

Description

J. B. KING 3,169,313

FLOATING CUTTER HOUSING FOR ELECTRIC RAZORS Feb. 16, 1965 Filed May 13, 1963 (/OJ 6 0/) 5. ff/ng INVENTOR.

BY A7704) United States Patent 3,169,313 FLGATENG CUTTER HQiJdING FUR ELECTRIC RAZOR Joseph E. King, 3423 Ozark, Houston, Tex. Fiied May 13, 1963, Ser. No. 279,383 2 Claims. (Cl. 30-4332) This invention relates to new and useful improvements in an electric razor.

It is an object of this invention to provide a razor having novel means for reciprocating the cutter blade housing as the cutter blade reciprocates to provide a horizontal movement to the cutter blade housing which will co-operate with the movement of the cutter blades to provide a greater cutting area.

In electric razors presently in use, the cutter blades are mounted in stationary housings so that as the cutter blades reciprocate, the hair to be cut will enter the usual openings in the housing and in the cutter blades and be severed, however, the hair to be cut must be in position to enter the hair openings provided in the cutter blade housing, and those not directly in line with such openings as the housing is moved over the face of the user, will not be cut and this requires repeated movement over the area until all of the hairs are cut. It is an object of this invention to provide a floating housing that will move horizontally as the cutter blade reciprocates, thus greatly increasing the effective area of the cutter and closely cutting hairs that would otherwise, because of entering the hair openings at an angle, only be partially cut.

With the above and other objects in view, the invention has relation to certain features of construction, operation and arrangement of parts more particularly defined in the following specifications and illustrated in the accompanying drawings, wherein:

FIGURE 1 is an elevated perspective view of an electric razor having a floating cutter housing positioned between two stationary cutter housings.

FIGURE 2 is an enlarged cross sectional side view taken on the line 2-2 of FIGURE 1, and

FIGURE 3 is a cross sectional end view taken on the line 33 of FIGURE 2.

Referring now more particularly to the drawings, the numeral 1 designates an electric razor housing of conventional construction having the cutter head base 2 and the

pivotal head retainers

3, 3 having the usual downwardly projecting retainer flanges 3', 3. In the razor shown in the drawings, three outer shearing members are shown, as 4, 5, 6, the outer members 4, 6 being mounted in the

spacer brackets

7, 7 and the

brackets

7, 7 and members 4, S, 6 being secured to the base 2 by means of screws 8.

Longitudinal slots

9, 9 in the base 2 permit the member to move longitudinally, the screws 8 in the member 5 being adjusted to permit their free movement in the

slots

9, 9.

The reciprocating bar 10 of the razor moves the

inner cutters

11, 12, 13 longitudinally across the inside upper surface of the

outer members

4, 5, 6 in the conventional manner, causing the sharp edges formed by the cutting slots 18, 19 to shear any hair that has entered these slots and the bar 10 extending into the longitudinal bar 14 which is bent to form a reciprocating bar receiving socket 15 and which is joined at each end to the inwardly turned ends of the cutter 20, 26.

Yieldable members, such as the

springs

16, 16 are mounted on the bar 14, each abutting at one end against one of the

screws

8, 3, the threaded portions of which extend upwardly into the member 12, and the other ends of the springs 16, 1d, respectively, abutting against the inwardly turned ends of the member 12.

Each spacer bracket 7 is provided with an overturned 3,169,313 Patented Feb. 16, 1965 terminus of the respective side walls, and a slot 17 is formed longitudinally in each overturned terminus.

In operation, the reciprocating bar 10 moves the

inner cutters

11, 12, 13 horizontally in rapid reciprocation, moving the slots 18 in the said cutters across the upper inside surface of the

outer shearing members

4, 5, 6 and across the hair receiving openings 19 therein. The memher 5, being mounted by the

screws

8, 8 in the

slots

9, 9 of the base 2, moves longitudinally with the cutter head 12 in a floating action, but the length of the

slots

9, 9 restrict the longitudinal movement of the member 5 so that the inner cutter 12 continues to pass over the hair openings 19 in the member 5 and continues to cut hairs entering the hair openings and the floating action of the member 5 will continue cutting hair that may have entered an opening at an angle until it is cut closely with reference to the skin of the user.

The slots 17 in the

spacers

7, 7 will catch the hairs to be cut and lift them as the razor passes over the skin surface, as indicated at 20, and thus guide them in a raised position into the hair openings of the cutter blade housings.

In the form shown in the drawings, a triple head razor is illustrated, showing a floating cutter head housing between a pair of stationary cutter head housings, however, all of the cutter head housings may be constructed as floating housings as heretofore described for member 5, or as many floating head housings as desired may be incorporated into the razor.

While the foregoing is considered a preferred form of the invention, it is by way of illustration only, the broad principle of the invention being defined by the appended claims.

What I claim is:

1. In an electric shaving mechanism, a housing, a cutter reciprocating mechanism in said housing, said mechanism comprising outer and inner cutter members, a cutter member base detachably mounted on said housing, an outer cutter member mounted on said base, said cutter member base having elongated slots therein and mounting screws extending through said slots and into said outer cutter member, said screws guiding the longitudinal movement of said cutter member, said screws extending upwardly through said member and into the interior thereof forming spring stops, an inner cutter member mounted in said outer cutter member and horizontally movable therein, said cutter members having slots therein forming cutting edges and springs mounted on a bar secured to the inner cutter member, said springs abutting at one end against the extended end of one of said screws and at the other end against said inner cutter member to resist the movement of said inner cutter member in one direction.

2. In an electric shaving mechanism, a housing, a cutter reciprocating mechanism in said housing, said mechanism comprising outer and inner cutting members, a cutter member base detachably mounted on said housing, an inner cutter member mounted on said base, said cutter member base having elongated slots therein and mounting screws extending through said slots and into said outer cutter member, said screws guiding the longitudinal movement of said cutter member, said screws extending upwardly through said member and into the interior thereof forming stop members, an inner cutter member mounted in said outer cutter member and horizontally movable therein, said inner cutter member having its end walls inwardly turned, a connecting bar mounted on said inwardly turned ends of said inner cutter member, a reciprocating mechanism receiving socket in said bar, yieldable means mounted on said bar adjacent each end of said inner cutter member, each yieldable means abutting at one end against one of said inwardly turned ends of said inner References Cited by' the Examiner UNITED PATENTS 7 Rand et a1. 3043.'1'

Weiland 30-34 Carissimi 30-4392 FOREIGN PATENTS Italy.

b WILLIAM FELDMAN, Primary Examiner.

Claims

1. IN AN ELECTRIC SHAVING MECHANISM, A HOUSING, A CUTTER RECIPROCATING MECHANISM IN SAID HOUSING, SAID MECHAINSM COMPRISING OUTER AND INNER CUTTER MEMBERS, A CUTTER MEMBER BASE DETACHABLY MOUNTED ON SAID HOUSING, AN OUTER CUTTER MEMBER MOUNTED ON SAID BASE, SAID CUTTER MEMBER BASE HAVING ELONGATED SLOTS THEREIN AND MOUNTING SCREWS EXTENDING THROUGH SAID SLOTS AND INTO SAID OUTER CUTTER MEMBER, SAID SCREWS GUIDING THE LONGITUDINAL MOVEMENT OF SAID CUTTER MEMBER, SAID SCREWS EXTENDING UPWARDLY THROUGH SAID MEMBER AND INTO THE INTERIOR THEREOF FORMING SPRING STOPS, AN INNER CUTTER MEMBER MOUNTED IN SAID OUTER CUTTER MEMBERS AND HORIZONTALLY MOVABLE THEREIN, SAID CUTTER MEMBERS HAVING SLOTS THEREIN FORMING CUTTING EDGES AND SPRINGS MOUNTED ON A BAR SECURED TO THE INNER CUTTER MEMBER, SAID SPRINGS ABUTTING AT ONE END AGAINST THE EXTENDED END OF ONE OF SAID SCREWS AND AT THE OTHER END AGAINST SAID INNER CUTTER MEMBER TO RESIST THE MOVEMENT OF SAID INNER CUTTER MEMBER IN ONE DIRECTION.