US2265880A - Hair clipper - Google Patents

Description

Dec. 9, 1941. q, l-I 2,265,880.

HAIR CLIPPER Fil ed Oct. 20, 1941 Patented Dec. 9, 1941 HAIR CLIPPER of Illinois Application October 20, 1941, Serial No. 415,689

11 Claims.

The present invention relates to hair clippers and is particularly directed to that type of hair clipper wherein a comb is adjustably mounted with respect to the body or handle of the clipper and with respect to the cutter blade so that the comb can be advanced or retracted to project more or less beyond the forward edge of the cutter blade, the comb of course being beveled so that the less it projects the finer will be the cut of the clipper.

It is the principal purpose of this invention to provide a novel mounting means for the comb whereby it is supported for sliding movement on the head of the clipper in such a fashion as to prevent binding or sticking. Obviously the invention contemplates a structure of this character wherein a bracket which carries the comb is guided by guide slots provided in the head, and yielding means are provided for causing the bracket to be held against two guide surfaces, one of which prevents turning of the comb about an axis perpendicular to it and the other of which prevents any rocking of the comb toward or away from the head.

It is also a purpose of the present invention to provide a device of this character wherein the yielding pressure of the cutter blade on the comb is utilized to aid in guiding the comb in its adjustment and in preventing any rattling or looseness in the comb mounting.

Other and more detailed objects and advantages of the present invention will appear as the description proceeds, reference being had to the accompanying drawing wherein a preferred form of the invention is shown. It is to be understood however that the drawing and description are illustrative only and should not be taken as limiting the invention except insofar as it i limited by the claims.

In the drawing:

Fig. 1 is a fragmentary view in side elevation of a hair clipper embodying my invention;

Fig. 2 is a plan view of the clipper with part of the cover broken away;

Fig. 3 is a sectional view taken on the line 3-3 of Fig. 1;

Fig. 4 is a perspective view of the mounting bracket which is utilized to support the comb on the clipper head; and

Fig. 5 is a fragmentary perspective view of a portion of the adjusting lever by which the comb is moved.

Referring now in detail to the drawing, the present invention is shown as embodied in a hair clipper of the type employing an alternating current electro-magnet it as the driving force. This electro-magnet is mounted in a casing H which serves as a handle for holding the clipper and which terminates in a head portion 12 where the comb l3 and cutter blade it are located. The electro-magnet H] is adapted to drive the cutter blade by means of an armature l 5 having a drive finger 16 that engages a driving notch IT in the cutter blade. The finger I6 is so mounted as to exert a yielding pressure downwardly on the cutter blade. The mounting comprises a supporting arm l8 which carries the armature l5. This supporting arm is provided with a U-shaped spring portion l 9 which is fastened by a screw 2!] and which is adjustable by means of an adjusting screw 2 l. A cover 22 encloses the electro-magnet and armature in the casing H. The comb I3 is fastened to a bracket 23 which is shown in perspective in Fig. 4. It will be noted that the bracket has one end portion 24 bent upwardly and then inwardly to provide a guiding rib 25. At the other end of the bracket 23 there is an upstanding portion 26 which is extended to a much greater width than the width of the bracket 23 and is provided at its top with a long inturned rib' 2?. The rib rides in a groove 28 provided in the headportion I2 and the rib 2'1? rides in a groove 29 provided in the head portion l2.

The flange 26 of the bracket 23 is cut out to provide an aperture at 30, which aperture has a reduced neck 3| extending downwardly to the base of the bracket '23. The aperture 30 is utilized to' pass a mounting screw 32 which is threaded into the clipper head in a screw threaded socket 33. A set screw 34 is threaded into the head of the clipper so as to lock the screw 32 in the desired adjusted position. An adjusting lever 35 has a hub 36 that is large enough to fit over the opening 39. The hub has a finger 37 which extends into the reduced neck 3i so that when the hub isturned on the screw 32 the flange 26 will be forced to move lengthwise causing the rib 21 to slide in the groove 29. The bracket 23 will of course move the comb l3 along with the movement of the flange 26. The rib 25 merely acts as a guide to hold its end of the bracket in place. A spring washer 38 is interposed between the head of the screw 32 and the hub 36 so as to force the flange 26 tightly against the flat adjacent wall of the clipper head and prevent any rocking of the comb It.

The fit of the rib 25 and 21 in the grooves 28 and 29 need not be tight. The spring washer 38 will position the comb blade horizontally and the pressure of the arm is on the cutter blade forces the ribs 25 and 21 to follow the lower surfaces of the grooves 28 and 29 throughout their movement. The ribs do not bind against the bottoms of the grooves since the lateral positioning is accomplished by engagement of the flange 26 with the adjacent fiat surface of the clipper head.

The spring washer 38 provides enough pressure to prevent rattle when cutting. Since there is also yielding pressure holding the ribs 25 and 21 against their adjacent grooved surfaces no rattle or looseness is noticeable in the mounting of the comb. The pressure that prevents rattle when the clipper is running and cutting comes from the pressure of the spring washer 38 on the hub 36 which in turn presses the flange 26 against the clipper body. Most of the friction opposing change in position of the comb therefore is at this point. The lever 35 applies its force to move the comb at the point of engagement of the finger 3'! with the flange 2B in approximate line with the point of most friction. This avoids binding.

It will be noted from an inspection of Figs. 1 and 2 that the top of the head portion I2 is rounded sufiiciently to prevent any sharp edges at the forward ends of the grooves 28 and 29. This is particularly important in avoiding danger of scratching the hands of the operator in his use of the clipper.

From the foregoing description it is believed to be evident that I have provided a simple and effective mounting for an adjustable comb blade and its control lever.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a hair clipper of the character described, a casing, a cutter blade, a comb on which said cutter blade rides, drive means in said casing for driving the cutter blade, and means mounting the comb on the casing for sliding movement to vary the amount it projects beyond the cutter blade, said means comprising a bracket on the comb blade, said bracket having end portions projecting upwardly along the opposite sides faces of the casing and provided with inturned ends, said casing having grooves receiving said ends to guide them, and means to slide the ends lengthwise of the grooves thereby adjusting the position of the comb.

2. In a hair clipper, mounting means for adjustably mounting a comb upon the clipper casing, said means comprising two guide members projecting from the comb upwardly along opposite sides of the casing, said members having casing engaging portions at their upper ends, said casing having guides in the opposite sides receiving said engaging portions, and means yieldingly pressing one of said guide members toward the casing.

3. In a hair clipper, mounting means for adjustably mounting a comb upon the clipper casing, said means comprising two guide members projecting from the comb upwardly along opposite sides of the casing, said members having casing engaging portions at their upper ends, said casing having guides in the opposite sides receiving said engaging portions, and a lever on the casing operatively connected with the comb mounting means to effect movement thereof along the guides.

4. In a hair clipper, mounting means for adjustably mounting a comb upon the clipper casing, said means comprising two guide members projecting from the comb upwardly along opposite sides of the casing, said members having casing engaging portions at their upper ends, said casing having guides in the opposite sides receiving said engaging portions, and a lever on the casing operatively connected with the comb mounting means to effect movement thereof along the guides, one of said guide members having an aperture therein receiving the lever, a

I headed pivot pin on said casing also extending through said aperture, and a spring plate on said pin engaging the guide member and pressing it against the adjacent casing wall.

5. In a hair clipper, mounting means for adjustably mounting a comb upon the clipper casing, said means comprising two guide members projecting from the comb upwardly along opposite sides of the casing, said members having casing engaging portions at their upper ends, said casing having guides in the opposite sides receiving said engaging portions, and means yieldingly pressing one of said guide members toward the casing, a cutter blade riding on said comb, and a driving arm engaging said cutter blade and pressing it against the comb.

6. In a hair clipper, a casing having cutter blade driving means therein, a comb, a cutter blade riding on the comb, said driving means comprising an arm pressing the cutter blade against the comb, means supporting the comb comprising oppositely disposed guide members extending parallel to the sides of the casing from the comb, said members and the adjacent sides of the casing having cooperating ribs and grooves running parallel to the comb, and spring means pressing one of said members against the casing frictionally to oppose movement of the member relatively to the casing from a position of adjustment.

'7. In a hair clipper, a casing having cutter blade driving means therein, a comb, a cutter blade riding on the comb, said driving means comprising an arm pressing the cutter blade against the comb, means supporting the comb comprising oppositely disposed guide members extending parallel to the sides of the casing from the comb, said members and the adjacent sides of the casing having cooperating ribs and grooves running parallel to the comb serving to slidably mount the comb on the casing.

8. In a hair clipper, a casing having cutter blade driving means therein, a comb, a cutter blade riding on the comb, said driving means comprising an arm pressing the cutter blade against the comb, means supporting the comb comprising oppositely disposed guide members extending parallel to the sides of the casing from the comb, said members and the adjacent sides of the casing having cooperating ribs and grooves running parallel to the comb serving to slidably mount the comb on the casing, an adjusting lever, and a pivot pin mounted on the casing and supporting the lever, one of said guide members having an aperture for said pivot pin and an offset wall with which a part of said lever engages to effect movement of the comb.

9. In a hair clipper, a casing having cutter blade driving means therein, a comb, a cutter blade riding on the comb, said driving means comprising an arm pressing the cutter blade against the comb, means supporting the comb comprising oppositely disposed guide members extending parallel to the sides of the casing from the comb, said members and the adjacent sides of the casing having cooperating ribs and grooves running parallel to the comb serving to slidably mount the comb on the casing, an adjusting lever, and a pivot pin mounted on the casing and supporting the lever, one of said guide members having an aperture for said pivot pin and an ofiset wall with which a part of said lever engages to efiect movement of the comb, said spring means comprising a washer held by said pin against the guide member.

10. In a hair clipper, a casing having cutter blade driving means therein, a comb, a cutter blade riding on the comb, said driving means comprising an arm pressing the cutter blade against the comb, means supporting the comb comprising oppositely disposed guide members overlapping the side faces of the casing, said casing having at least one of the side faces shaped to provide a guide surface for the overlapping guide member, means for pressing the adjacent guide member against said guide surface whereby to prevent rattle of the comb in operation of the clipper, and means for moving the adjacent guide member along said surface comprising a hand piece movably mounted on the casing and connected to said guide member adjacent to the area of the guide member which engages the guide surface on the casing.

11. In a hair clipper, mounting means for adjustably mounting a comb upon the clipper casing, said means comprising two guide members projecting from the comb upwardly along opposite sides of the casing, said members having casing engaging portions at their upper ends, said casing having guides in the opposite sides receiving said engaging portions, and means yieldingly pressing one of said guide members toward the casing, a cutter blade riding on said comb, and a driving arm engaging said cutter blade and pressing it against the comb, said casing having at least one of the side faces shaped to provide a guide surface for the overlapping guide member, means for pressing the adjacent guide member against said guide surface whereby to prevent rattle of the comb in operation of the clipper, and means for moving the adjacent guide member along said surface comprising a hand piece movably mounted on the casing and connected to said guide member adjacent to the area of the guide member which engages the guide surface on the casing.

LEO J. WAHL.

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