US2941293A - Hair clipper - Google Patents

Description

June 21, 1960 c. .1. MAzzoNl HAIR CLIPPER Filed Dec. 17, 1958 INVENTOR. H65 for d. /Vfzza/v/ Lili l of the hair.

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HAIR CLIPPER Chester J. Mazzoni, 22701 Michigan Ave., Dearborn, Mich.

This invention relates to hair clippers and, in particular,V

to hair clippers with hair length cutting adjustments.

One object of this invention is to ,providel a motordriven self-operated hair clipper with a length-of-cut guide which is easily and efficiently used by a person for cutting his own hair without requiring the assistance or services of a barber, the device being adapted for ease of kuse in cutting hair at the back of the head, even though it cannot be seen directly by the user. c

Another object is to provide a motor-driven self-operated hair clipper with a length-of-cut guide of the'foregoing character wherein the guide includes a Vcomb mounted on one arm oi' an angle bracket, the other armr of which is attached to one side of the clipper in such a manner as to be quickly and easily adjusted relatively to the clipper in order to vary the distance between the comb and the clipper cutters and thus to vary the length of cut Another object is to provide a motor-driven self-operated hair clipper with a length-of-cut guide wherein the clipper cutters and the comb are mounted parallel to one another and substantially perpendicular to the longitudinal axis of the clipper, the bracket for the comb being mounted on one of the side walls for sliding adjustment motion relatively thereto, so as to the hair being cut.

Another object is to provide a motor-driven self-operated hair clipper of the foregoing character wherein the entire device including the clipper and the length-of-cut guide regulator are sufficient short in length to be held between the palm of the users hand and his bent-over nger tips, thereby enabling the cutting operation to be conducted with a combing motion in a rapid and easy manner.

Another object is to provide a motor-driven self-operated hair clipper of the foregoing character wherein the angle bracket which holds the comb is adjustably attached to one side of the clipper by a yieldable detent device which normally holds the angle bracket and comb in xed relationship to the cutters but which, when pushed or pulled with suicient force overrides the detent device to enable the angle bracket to be moved relatively to the clipper, thereby enabling the comb to be moved toward or away from the cutters in order to vary the length of cut of the hair.

Other objects and advantages of the invention will become apparent during the course of the following description of the accompanying drawings, wherein:

Figure l is a side elevation of a motordriven selfoperated hair clipper, according to one form of the invention, with the position of the users hand grasping the clipper shown in broken lines;

Figure 2 is a top plan view of the self-operated hair clipper shown in Figure l;

Figure 3 is a left-hand side elevation of the self-operated hair clipper with the upper portion in section along the line 3 3 in Figure 2, to show details of the attachment vary the distance between the comb and cutters in order to vary the length of arent O Y guide 14 adjustably attached to the of th'e cutting guide and of the rapid-action detentV device.

Referring to thev drawings in detail, FiguresY 1 to 3 in-l clusive show a motor-driven self-operated cut-regulating hair clipper, generally designated 10, according to one form of the invention, as consisting generally of a motordriven hair clipper 12 and an adjustable length of cut clipper 12. The clipper 12 is of conventional construction with a casing 16 containing an electric motor (not shown) and a cable connection 18 from which a twin conductor cable or socalle'd cord extends to a conventional plug (not shown) adapted to be-inserted in an ordinary house lighting current outlet (also not shown).V Fixedly mounted on and projecting from the forward end 22 of the casing 16 (Figure 1) is the shank 24 of a fixed cutter unit 26 having a multi-tined cutter 28 extending at right angles to the shank 24 and parallel to the forward in spaced relationship therewith.

Mounted in the space between the fixed cutter 28 and the casing lend 22 and disposed parallel thereto is a multitined reciprocable cutter 30, the cutting tines 32 of the fixed cutter 28 being disposed in close proximity to the cutting tines 34 of the reciprocable cutter 30.y The cutters 28 and 30 are thus disposed transversely to ther casing 16. The fixed and movable cutters 28 and 3l)` collec-tively form a cutting' head, generally designated 36,f

with a cutting nose 38 including the tines 32 and 34. The

energizatiou of the motor within the casing 16 from the users hand'H. The reciprocable cutter30 is moved to'v and fro relatively to the xed cutter 28 by `being connected to an eccentric on the shaft of the driving motor,v

within the casing 16 in a manner well-known to ,thosel skilled in the motor-driven hairy clipper and shaver art.A

This internal mechanism is conventional and is beyond` the scope of the present invention.

It is to be emphasized, however, self-operated hair clipper of the present invention to be easily grasped in one of the users hands and manipulated by the user so as to reach and head including the back of his tween the forward cutter end 22 clipall portions of vhis 16 for this reason is preferred to be laterally elongated or of excessive shortness, wider than it is long, in order to facilitate convenient grasping. In other words, Vthe casing 16 is preferably laterally elongated, that is, shorter in a longitudinal direction between its opposite ends 22 and 40 than it is wide between its opposite sides 42 in order to enable it to be held in the palm P of the users hand H between the thumb T and fingers F with the finger tips extending around the guide 14. This enables the hair to be cut preferably with a' combing motion,. not only on kthe top and at the sides of the head but also at the back of the head.

The upper wall 44 of the casing 16, so designated` when held in the position shown in Figure 1, is provided with anged internally-threaded plugs or bushings 46 (Figure gated inner surface 54 on the long arml 5-6 of an angle bracket 5S, the short arm 6I) of which is drilled to receive screws 62 threaded into the correspondingly drilled 'and threaded base 64 of a guide comb 66 having multipley hair-cutting guide tines 68 with pointed ends 69 and v'extending parallel to the cutting tines 32V and 34 of the end 22 and mounted that invorder for the I head, the casing 16 be#` and the rearward cable connection end 40 must be unusually short. t The casing j apanage- The casing 16 isconveniently molded from synthetic plastic material, hence the bushings 46 may be embedded thereimduring themoldingoperation and the sockets 7 2,

likewise formedduringthe molding operation, in amanner well-known to those skilled in theplasticmolding art,

The long arm 56 of the angle bracket is in the form of aplate (Figure 2) having its inner side corrugated at54 and provided with elongated slots 74 preferably. equal in number to the number of connectors 70. The slots 74 are preferably arranged in two mutually parallel groups near the opposite edges of the plate arm 56. Mounted in the sockets 72 (Figure 3) are the heads of stud screws 76, theunthreadedshank portions 78 of which slidablyengage holes 80 in the stationary plate 50, their threaded reduced diameter end port-ions S2 passing through the slots 74 and having thumb nuts 84 threaded thereon and extending into the slots 74 (Figure 3). A helical compression Aspring 86 encircles the shank 78 of each screw 7 6 between its head and the adjacent surface of the iixed corrugated plate S` within the socket 72. l

vIn order to facilitate adjustment, a friction. pad 88 oi serrated or corrugated rubber or other suitable frictional material is secured, as by an adhesive, to the outer surfaee of the long arm 56 of the angle bracket 58 bef tween the opposite groups of slots 74j so as to prevent slippage while adjusting the length of cut. To do this,v the operator `holds the hair clipper 12 in one hand with the friction pad 88 facing upward such as in the position shown in Figure l, places his ngertips or thumb of his other hand on the friction pad 88 and appliesa pushing or pulling force parallel to the plate arm 56 suficaient toY causevthe corrugations on its surface 54 toride up and over the corrugations on the surface S2 of the fixedV plate 50. In this ,manner heuovercomes the thrustof the compression springs 86 and permitsithe corrugated plate 56 to slide past the corrugated plate vSti andre engage relatively different mating Ycorrugations thereof.

In' this way he is enabledtto space the tips. 69. of the comb tines 68either closer to or lfarther awayfromthe nose 38`of the cutter head36 soras torincreasel or decrease the length of the hair which will remainafter cutting has taken place'.

In the use of the invention, with theV length" of crut thus adjusted, the user grasps theis'elf-operated cutregulated hair clipper 0 in the manner shown in Ifigu-reY l .with the rearward end -40 of the clipper casing 16V4 resting in his palm P of his hand H. and withfhis thumb T on one side and his inge'rsF on the otherside, his iinger tips extending slightlypast and around the angleY bracket 58. It,wi1l, of course, be understoodthat the clipper 10 :nay be held in different positions in the hand H, the

position shown being convenient for many users. Having started the motor of the clipperv by manipulating the switchbutton 42, the user passes the cutter head 36 over the hair while resting the comb 66 upon the scalp, moving the device with a combing motion over the hair.. Thecomb 66, by being spaced away from the cutters 28 and regulates the length to which the hair is cut.

To cut his hair to diierent lengths in dilerent places on his head, the user readjusts the comb 66 either nearer tothe cutter head 36 orfarther away frcmit, according to -whether he wishes his hair to 4be cut shorter orlonger in the particular location. vThis adjustment -is made in themanner described above by pushing or pulling upon the friction pad 88 to cause the corrugations 54 to yield and slide over the corrugations 52 and re-engage in a new location. In this manner, for example, the hair can be cut shorter at the sides and back of the head than on top, as is usually desired. The short and compact construction of the self-operated cut-regulated hair clipper 10 enables the user to c ut his own hair quickly and easily, even the back of the head where it would be impossible for him to use a hand-operated hair clipper or to accurately hold and control the cutting operation of a hair clipper of elongated construction which would not fit between his thumb andngers or into the palm of his hand. The combing motion by which the self-operated hair clipper 10 is used makes it easy for the unskilled user to cut his own hair to the desired length and in a manner to give a uniform and attractive appearance. It is preferred in using the device to start at the front of the top of the head andrmove the device backward over the headwith a-combing motion in order to obtain a Satsfastoryresult From Figure l it will be observed that the outer end portion. 69M of the comb 68 is inclined relatively to the base64 thereof at substantially the same angle as the cutting tines 32 of the xed cutter 2 8. Thus, when `the 60ml? 66 S 1J'11SI1,S.0 that; itsY has@ 64 is substantially on engagement with the xed cutter Yunit 26, its end portiorr69 istherebydisposedclosely adjacent or in actual engagement with the similarlyinclined end portiorrof the tines 32;.ofpthenfxed cutter 2 8. vThis arrangement enablss. the hair Clipper ,10 t0 site the Propertaner. at the. back of theneck `and, to cut the hair as short as desired, both at the back of the neck and at the sides of the headnand temples.

l. A motor-driven self-operated cut-regulating hair clipper Acomprisinga clipper casing of laterally-elongated shape having a forward end and `opposite side walls, a of multiple-titled cutters'V mounted in close proximity to one another on Vsaidforward casing end, motor-driven meehanismvinzsaid casing voperatively connected to one of said cutters for reciprocating oneof said cutters relativelyito the othercutter in shearing relationship therewithvy/anvangle guide structure having a iirst armadjustably secured to one side wall of said casingin a direction lengthwiseof said casing and a second arm extending transverselyto'said lirstarrmsaid second arrn having a multi-timed `guide comb thereon in spaced substantially parallel relationship to said cutters, said iirst arm haying a row of serrations thereonextending lengthwise thereof, and means connected te said cas-ingreleasably engagef able with said kserrations for adjustably securingsaid first arm to said side wall for adjustment motion lengthwise ot said casing.

2.. A hair clipper, accordingto claim l, wherein said angle guide structure also includes Aan Vattachment member secured to said casing, said attachment member and said first arm` having interengaging serrations disposed transversely to the lengthwise direction of said casing.

3,. A hair clipper, according to clairn 2, wherein 4said securingmeans includes fasteners yieldingly urging the serrationsofsaid first armnintovmating engagement with the ser-rations of said attachment member.

4. A hair clipper, according to claim 3, wherein said fasteners include resilient elements associated therewith audrvyieldingly urging said serrations into mating engagement with one .Y another.

5. A hair clipper, according to claim 2, wherein said first arm and casing have cooperating guide means thereon extending lengthwise of said casing and holding said guide comb against tilting out of spaced parallel relationship with said cutters.y v.

6. A hair clipper, according to claim 5, wherein said guide .means includesna guide slot arrangement extending lellgihifvis@ Qflsaidvfrstarmmand a plurality. of fasteners. extending through Ysaid guide slotinto -engagement with said casing and holding said rst arm in adjustable guided teners holding said serrations in mating engagement with engagement with said casing. one another.

7. A hair clipper, according to claim 2, wherein said References Cited in the me of this patent rst arm and said attachment member have cooperating guide means thereon extending lengthwise of said casing 5 UNITED STATES PATENTS and wherein said securing means includes yielding fas- 2,802,263 Marchner Aug. 13, 1957

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