US2648898A - Shaver and hair receiving compartment therefor - Google Patents

Description

l. JEPSON sHAvER AND HAIR RECEIVING COMPARTMENT THEREFOR Fild'oot. 29, 1947 5 Sheets-Sheet l INVENTOR.

ATTORNEYS.

ug. i8, i953 n. JEPSON SHAVER AND HAIR RECEIVING COMPARTMENT THEREFOR Filed Oct. 29, 1947 3 Sheets-Sheet 2 50.37 41u @Mg-v ATTORNEYS All@ l, i953 l. JEPsoN 2,648,898

SHAVER AND HAIR RECEIVING COMPARTMENT THEREFOR Filed Oct. 29, 1947 3 Sheets-Sheet 3 @6 7 r FIG@ ATTORNEYS,

Patented Aug. 18, 1953 SHAVER AND HAIR RECEIVING COMPARTMENT THEREFOR Ivar Jepson, Oak Park, Ill., assignor to Sunbeam Corporation, Chicago, Ill., a corporation of Illinois Application October 29, 1947, Serial No. 782,761

6 Claims. 1

This invention relates to shaver and hair receiving compartment therefor.

In electric shavers of the type using a linkage for changing the rotational motion of a motor shaft to an oscillatory movement in a cutter blade, the respective parts forming the linkage are under tremendous strains. where the motor speed may be in excess of 8000 .revolutions per minute, pressures in excess of a pound and a half on the respective parts of the linkage are encountered. Such pressures together with friction, wear, and heat incident thereto, cause an early fatiguing of the metal parts. Accordingly, it is an object of this invention to provide a novel drive mechanism that insures a relatively long life under the extreme conditions outlined above.

Another object of the invention is to provide a shaver of the type described characterized by a vcomb having a shaving area substantially larger than was heretofore practicable, combined with a cutter oscillating across such larger area. This materially increases the diiiiculties incident to the operating conditions described, and my invention aims to provide an improved shaver `head and drive mechanism for such conditions.

Another object of the invention is the provision in a razor of the above character having a linkage with a shaft with novel means for minimizing the axial bodily movement of the shaft.

Another object of the invention is the provision in an electric razor of the above character of novel means for securing a comb in position at one end of the razor.

j VAnother object of the invention is the provision in an electric razor of novel means for receiving hair clippings and the like.

A still further object of the invention is the provision of an electric razor in which the'component parts can be easily assembled, which are rugged, and which are relatively inexpensive to manufacture.

Other objects and advantages of the invention will become apparent from the following detailed description taken in connection with the accompanying drawings, in which- Figure 1 is a side elevational view having a cutaway portion of an electric razor embodying my present invention;

Figure 2 is an end elevational view with a cutaway portion of an electric razor embodying my invention;

Figure 3 is a side elevational View with a cutaway portion showing the construction of the head end of the razor;

Figure 4 is an end view similar to Figure 3;

In instances Figure 5 is an elevational View of the head end of the razor with some of the parts removed;

Figure 6 is a fragmentary sectional View similar to Figure 4 showing the parts in a different position;

Figure 7 is a sectional view showing details of construction of the power terminal endy of the razor;

Figure 8 is an end View similar to Figure 7 Figure 9 is an exploded View showing one of the parts forming the head and the drive mechanism;

Figure 10 is a diagram showing the present comb in comparison with the prior comb; `and v Figure 11 is a top View of a spring member which coacts with the comb locking plates, as viewed on the section line I I-I I of Figure 3.

Referring now to the drawings, the invention is shown embodied in an electric razor II of the type used in shaving beards and for removing hair from other parts of the body. The razor comprises a cutter I2 coacting with a comb I3 secured to comb supports I4 mounted on a head I5 at one end of the razor II. 'Ihe cutter I2 is positioned so that it is vurged outwardly into constant engagement with the comb I3 by centrifugal force combined with spring force. This principle is disclosed in Patent No. 2,081,694. According to the present invention the spring force is applied by means of a spring I1 mounted in each spaced support I8. The latter are rigidly mounted to a shaft I9 journaled by bearings 2I received in openings 22 in sidel portions 23 of the head I5. Herein the shaft I9 is driven by a rotatable eccentric 24 through a drive bracket 26. The eccentric 24 and bracket 26 are arranged to translate rotational motion of the eccentric 24 to an oscillatory motion in the shaft I9 and the cutter I2. The eccentric 24 herein is driven by an electric motor 21 mounted in a case 28 preferably shaped to be conveniently grasped in the users hand.

One phase of the invention is directed to the problems incident to the relatively large comb which is provided with a shaving area substantially larger than in prior shavers of this type. As shown in Figure 10, the arc A shows the outside diameter of a comb according to the present invention, on the same scale as the drawings; and the arc B is the -outside diameter of a prior comb. In actual practice the comb plates are of .002 sheet steel and the radius of comb A from its cutting surface tothe center is 1/2", While the similar radius for the comb B is Assuming the angular movement of the cutter is the same in both cases as denoted bythe angle C, the cutter has much greater lineal travel in the arc A than in the arc B; also, the larger radius would require greater mass of the oscillating parts. In view of the increased mass and the high speeds, very high inertia forces are produced in addition to the increased centrifugal force, and this presents conditions and problems working against the desired long life in a device of this kind. For example, where the size of an oscillating part such as the shaft I9 is increased, the moment of inertia is increased .in proportion to the th power, meaning that where the shaft is twice the size of a prior construction the inertia forces built up in the shaft are 32 times as large. And, since the bearing pressure on the crank drive pin or eccentric 24 is proportional to the amount of inertia of the oscillating parts, this pressure will also be increased 32 times. Also, further problems are presented because with increased radius of the cutter the centrifugal force working outwardly lagainst the comb i-s increased in proportion to the radius. These conditions present diicult problems of friction, Wear, and fatigue of metals, which affect the life of a device of this kind. My invention has, therefore, provided novel construction designed to meet these problems in -a commercially satisfactory manner.

The present invention provides a cutter and its support of substatnially reduced mass, considering the large radius and travel. The supports I8, integral with the shaft I9 and originally solid metal, are bored out from the bottom as shown in Figure 3, the bore terminating short of the end. Each support is then milled transverse- L ly in a manner to provide a short opening at the outer side and a long opening 29 at the inner side, as shown in Figures 3 and 9. The cutter I2, reduced to minimum dimensions is mounted for sliding support in the slotted ends of the supports i8. As a means of providing sufficient bearing for the cutter in the supports I have provided narrow legs 39 which slide in the slots. The lower end of each leg is reduced to a small size suicient to enter the small bore in the corresponding support. This lower end of each leg bears against a small disc 39 which seats on the top of each spring I1. Each spring is retained at its lower end by swaging the open end of the bore as shown in Figure 3. The legs 39 provide increased bearing surface for the cutter. Also, the outer edge of each leg has lateral bea-ring support at all times against the wall of the bore and the inner side of each leg is free to move lengthwise in the longer slot 20' at the inner side of the support. In this way the cutter is guided against lateral displacement and it is free to move in a radial direction in 'response to centrifugal force and also in response to the springs. This construction contributes to minimum mass of the oscillating parts.

Also directed to this phase of the invention is the construction of the drive bracket 26 so that the latter Will have a relatively long life under the extreme service conditions encountered in an electric shaver in which the moving parts thereof reverse their direction of movement many thousands of times a minute. For this purpose the drive 'bracket 26 comprises a portion '29 (see Figure 9) having an elongated slot 3| shaped to receive the eccentric-24 and a resilient portion 32 for connecting the slot portion 3| to the shaft I9. As best shown in Figures 3, 4 and 9 the slot portion 3| of the bracket is formed herein by spaced elongated members 33 joined together at opposite ends by integral members 34. To minimize friction between the side walls of the slot 3l and the eccentric 24 the walls of the slot are lined with strips 36 of material preferably providing a good bearing surface and also having good insulating qualities so as to insulate the eccentric 24 from the cutter I2. The resilient portion 32 herein is formed by spaced arms 3l integral respectively with a central portion of one of the spaced elongated members Preferably the arms 3'I are rigidly secured to a central portion of the shaft I9 as by rivets 38. To increase the resiliency of the respective arms 31 apertures 39 are formed therein intermediate the rivets 33 and the interconnection with the spaced elongated members 33. It is to be understood that with the construction of the drive bracket 25 shown herein it can be formed asa single stamping from resilient material and then preshaped to the desired form in a simple forming process. It is also to be understood that because of the resiliency the shock load on the eccentric 24 at the vend of each stroke is minimized.

Preferably the eccentric 24 and the drive brack-l et 25 are operable to drive the cutter l2 without being exposed to hair clippings falling in the cutter chamber 4I (see Figures 3 and 4). 'I-o this end the eccentric 25 and the lower portion of the drive bracket 25 as shown in the respective drawings are disposed in a chamber 42 in the head 5I5 below the shaft I9. Herein the chamber 42 is formed by the side portions 23 and walls 43 integral with the respective side portions 23. The resilient portion 32 of the drive bracket connected to the shaft I9 is disposed in a housing 4-4 having a chamber 46 formed therein, in communication with the chamber 42. The chambers 42 and 45 are of such size and shape as to permit freedom of movement of the respective drive bracket 26 and eccentric 24 during operation of the razor. The shaft I9 projects through open ings ll'I in walls 48 of the housing `41|. The openings 41 are in alinement with the bearings 2| supported in the side portions 23 and are of such dimensions that a clearance is provided between the walls 48 and the shaft I9 which permits free oscillatory movement of the shaft and prevents the entrance of hair clippings to the respective chambers along the shaft I9. It will be seen that with this construction the eccentric 24 and the drive bracket 26 are completely enclosed.

Another aspect of my invention is concerned with an improved construction for securing the comb unit in position at the end of the razor. To this end I provide comb locks on each side of the head which when in the secured posit-ion are stressed so as to positively -secure the comb unit on spaced shoulders 59 formed on each side of the head I5, and which can be readily removed from engagement with the comb unit when it is desired to remove the comb unit for cleaning or for replacement of the comb and also the cutter.

lEach comb lock is in the form of a plate 5| (see Figures 4 and 6) having a tongue 52 on one end shaped to intert in a slot 53 formed in the lower portion of the comb unit. Each tongue 52 is formed with a cam surface 54 arranged for snap engagement in the slot 53 in the comb unit as shown in Figure 4. Each plate 5| has a hingellke connection at its lower end to a spring member 55 which is stressed to pull the plate downwardly and yieldingly hold the tongue 52 engaged in the slot 53. The spring members 56 are formed 11i-tegral with a plate 49 of spring steel (see Figure 11) disposed between the head l5 and a bearing block -51 of the motor `2'I. the spring plate 40 being shaped to cover` the entire top Vof the bearing block and having suitable openings for the motorrdrive and for fastening screws. Each spring member 56 extends the full width of its companion plate 5I, thus providing a continuous hingelike connection and a strong and durable spring action for retaining the comb in position under all service conditions. To disengage the tongue 52 and slot 53 it is only necessary to insert a thumbnail between the upper edge of the plate 5| and the comb assembly and apply a slight outward pressure. The plate 5| may then be swung down to the open position shown in Figure 6. The spring member 56 acts to retain the plate 5I in this open position, exerting a downward pressure against the plate 5I, as will be presently described.

Another important feature of my construction is the chambers 58 formed on each side of the shaver I I for receiving the hair clippings. I-Ierein the chambers 58 are formed between the side walls 43 of the head I5 and the comb locking plates 5|. Each of the chambers 58 is in cornmunication with the cutter chamber 4I. Preferably the exterior of the housing `44 disposed in the chamber 4| is arcuate shaped (see Figure 4) s'o that hair clippings falling thereon are deflected into the side chambers 58. Access to the chambers 58 for cleaning purposes is effected by disengaging the tongue 52 from the slot 53 and swinging the plates 5| about its said hinge-like connection. This hinge isA formed by bending an outer portion 59 of the spring member 56 in a downwardly curved direction as shown in Figure 4 and bending a lower portion 6| of the plate 5I in an upwardly curved manner to intert with the curved portion 59 of the spring member 56. It is to be understood that when the tongue 52 is disengaged from the slot 53 as in removing the comb the spring member 56 tends to assume an unstressed position. As a result, the plates 5| are moved bodily downwardly so that the curved edge 6| of the plate engages an edge 62 (see Figure 6) of the casing I I. To gain access to the chambers 58 the end of the plate 5| is swung outwardly to the position as shown in Figure 6. During the movement of the plate 5I to this position the curved edge 6I is rotated in a counter-clockwise direction on the edge 62 of the case to bring its interlocked or hinged end to a passed center position in which the downward pressure of the spring member 56 holds the plate 5| in the open position shown in Figure 6. That is, the end portion 6| in effect goes through an overcenter position and the plate 5| is yieldingly held in such position by the spring member 56. A slight movement of the plate 5| in the direction to return it to the position shown in Figure 4 causes the spring member 56 to go overcenter in the opposite direction and assume an unstressed position. As a result the plate 5| will be swung about its hinge to an upright position with its tongue 52 against the comb unit and ready to be snapped into interlocking engagement therewith.

Another phase of my invention is concerned with constructing the head l5 of the razor in such a manner as to facilitate assembly of the respective parts mounted in and supported thereby. Herein I form the head in two separable parts 63 which when joined together along a common plane passing substantially through the longitudinal axis of the sh aft I9 forms the unitary head. Each of the parts 63 is identical and assumes the shape best shown in Figure 9. Each of the parts comprises side members 64 having recesses 66 which when two parts are secured together form the bearing openings 22 (see Figure 3), an intermediate portion 61 spaced from the side portions 64 and when the parts 63 are assembled form the housing 44, webs 68 and 69 interconnecting the side portions 64 and the intermediate portion 67 and anges II utilized in mounting the head I5 on the motor block 5I. A dowel pin 'I2 on one part 63 shaped to nt in an opening I3 in another part 63 may be utilized to aline the respective parts 63. In assembly, the nat face of each part, lying in a common plane, abuts the corresponding face of the other part 63. Any suitable means may be utilized for securing these parts together, such as two screws 'I4 (see Figure 3) extending through one of side portions 64 into threaded engagement with4 a corresponding part 64.

Means is provided for controlling the axial movement or end play of the cutter shaft I9. To this end the sleeve bearings 2| (see Figure 3) mounted in the side portions 23 are formed with shoulders 'I6 shaped to abut against shoulders 'II .formed on the shaft I9. The sleeve bearings 2| are of sufficient length so that a portion 'I8 of the head I5 adjacent the openings 22 receiving the bearings 2| may be deformed to engage the end of the bearing opposite the shoulders I6 and thereby positively position the sleeve bearings 2 I In assembly of the component parts of the head I5 the sleeve bearings 2| are normally placed on opposite ends of the shaft I9 and the shaft with the cutter supports I8 and drive bracket 26 are mounted in one of the parts 63. The mating part 63 of the head I5 is then brought into position so that its edge portions abut the edge portions of the other part and then the screws 'I4 are threaded into position from each side of the head I5. The completed head is then placed in a machine and the portions 'I8 of the head I5 adjacent the openings receiving the bearings 2| are deformed as by a spinning process. It is to be understood however that there is sufficient clearance between the shoulders I6 and 'I'I to permitV freedom of angular movement of the shaft I9 and while at the same time preventing axial movement of the shaft.

While any suitable motor 21 may be usedto drive the eccentric 24 I prefer to use a motor of the type described in detail in my co-pending application, Serial No. 783,419, filed October 3l, 1947. Preferably, the motor comprises a eld structure 'I9 composed of two separable pieces secured together bylinks 8| at opposite ends thereof and having eld coils wound on spools 82 formed by two interlocking portions to form a unitary eld structure of a generally elongated rectangular shaped cross-section encircling'an armature 83. The latter is supported by a shaft 84 in self-alining bearings 36 (see Figure 4) and 8'1 (see Figure '7) supported in bearing blocks 51 and 89 secured in a suitable manner to opposite ends respectively of the iield structure 19.

While any suitable means may be utilized for securing the motor 2 to the head I5, I utilize screws projecting through the flanges II on each side of the head and threaded into the bearing block 51. The universal motor shown herein is a series motor of the commutating type. Means is provided for effecting a connection between brushes 9| and the motor circuit that facilitates assembly and maintenance of the motor. For this purpose I utilize tubular shaped brush holders 92 (see Figure 7) shaped to hold the brushes 9| and provide a removable cap 93 electrically conaccesos nectedl the motor circuit and shaped to t over the end of eachA` tubular member 92 to effect" a. connection between the brush holders 92 andi the motor circuit. As best seen inFiguref' the motor herein utilizes two brushes 9|. The brushes are received in the brush holders 92? herein. in the formof tubular sleeves supported by the bearing block 89l so that one end of eachsleeve is dis posed adjacent a commutator 96 and the other endl projects through a wall 96 of a commutator chamber 9? formedy in: the bearing support 819: The sleeves 92' are disposed on. opposite sides of the commutator 9d in a predetermined: manner to obtain proper commutation. rEhe outer end of each sleeve s2 is: formed with a bead- 99. The cap; 93'. herein is: formed with a central portion 99 and; depending resilient fingers |0.| shaped' to intert with the bead 9B so as'to. secure the cap 93: tothe end of the sleeve 92. A portion |132 of each cap 93 isk shaped so that field leadsv |031 can` be secured thereto as by hooking an= end of eachy lea-dt |03 through an opening in the portion |202 andsoldering the respective parts together. rIhe pressure of each brush 9| on the commutator 94. is4 determined' by a spring |911 disposed' betweenl a. shoulder |96 formed on the brush 9| and the cap 93. This construction is advantageous in that the electrical connections and the brushes 9| are readily accessible from the exterior of the motor 2.7 for maintenanceI and'. service purposes. It also permits the use of a relatively long spring its between the position 9| and the cap 93 which is desirable since the longer the spring the less variation there will be in brush pressures on the commutator 9'4' as` the brush wears. down in use.Y In some applications such as when the motor is used. in the case 28 which isformed by separableparts, joinedi together as described in my prior Patent No. 2,530,362, I utilize a strip of. mica insulation |01 between the cap 93 and the case 28'. provides additional protection to the user of the razor against induced voltages inthe motor and; the like because the case is split at thispoint.

Frequently,Y in electric razors the construction of power terminals |08 and a plug (not. shown) for connecting the respective terminals to a source of power is such that a positivelconnection between the respective partsv is not alwaysV assured.. This is aggravated by the fact thatl operation, particularly where the power terminals' are locatedA at a lower portion of the electric razor` the weight of" the attachment plug and connectedcordl tends to pull the plug from engagement with the terminals |98. A construction of the powerv terminals |93 i's shown herein for positively assuring an electrical connection under extreme service conditions. To this end the power terminals are formed as elongated; prong membersprojecting through an insulating panel |09, s1id ably disposed inspaced opposed grooves formed on opposite sides of a recess lf2y receivingI the terminals |98 at the extreme outerend of the bearing' block 89. As shown in Figure '7` the recess H2 isdisposed so that the terminals |08 are accessible from the exterior of the case 28 through an opening ||3 formed therein. Field' leads are connected to the terminals |98 through eyelets ||6 embracing one end of4 theA terminalsl |93. Herein the eyelet i-i is disposed' between an insulating member ||`|V on one side of the insulating panel |199- and a peened end I8l on each terminal |08. The peened end |A|8 in effect forms a riveted connection whichA coacting withan annular shoulder ||9 formed on each terminal ony the opposite side of the insulating This i panel |139 securesA theI terminals |168 theretoin a rigidrelation. The end of eachterminali E08 projecting into the recess ||l2 is formed withv anfaxially extending slot |-2 (see Figure 8) that sub-- stantial-ly bisects the terminals |08. Withthis construction each of' the bisectedf parts of the terminalA is slightly resilient and whenA in use with a plug of predetermined design as described in my co-pending application will be stressed so that the outer ends of each bisected' terminal are moved toward each other in a stressed con-dition'. Intermediate the ends of the termina-ls ftthev latter are deformed as by forming an annular beadv |22l thereon. Preferably the plug (not shown) is formed with sleeves having an annular recess shaped to receive the annular shoulderv |22* formed on the prongs 0B.

In some motor applications the axial movement and end play of the shaft 84 must be maini tained within extremely close tolerances to irr-v sure optimum operation. A construction for minimizing the end playr of the shaft 84' when themotor 2-1 is usedv for driving the electric; razor |i' is shown in Figures 3 and 4. Thus; anA abutment |23 is formed on the shaft 8d as by a4 collar being press fittedon the shaft adjacent an insulating disc |24 disposed adjacent the bearing B. A washer |26 is disposed' between thel collar |23 and a sleeve member |21' of the selfalining bearing 86. A second washer |28 is di'sposed between the oppositeA end ofv the sleeve member |21 and a shoulder formed' on an eccentricsupporting shaft |31, rigidly mounted at one endon the shaft 842 The Washers |26 and |28' v are selectively chosen during assembly of the motor 2i' so that only washers of a thickness permitting the shaft 84 to freely rotate without aps. preciable end play are utilized in the assembly..

The eccentric 24 may be secured to the. shaft ad in any suitable manner. Herein by way of'n illustration the eccentric 24 is mounted on the. shaft |3| which is threaded into the end` of the shaft 84. Preferably, the eccentric is mounted in an insulated relation with respect tothe shaft. so that induced' voltages in thearmature 8,3. andv the shaft 8 are'y prevented from, passing to the comb |2 and the case 28. As shown inFigures 3 and 4 the eccentric 2.4 is in eiect integral with. and projects upwardly from a washer |32:4 mounted on the shaft |3|. TheY inner opening. ofthe washer. is preshaped tov nt aboutan insu.-v lating washer |33. mounted on. the, shaft.. Insu'l'ating washers |34 andi |35 are disposed. in spaced axial relation on. opposite sides of the. washers |32A and |33. The respective washers are secured between a shoulder |38 and a, washer |31 bypeening over an end. |49 of, the shaft |.3-| sothat it engages the. washer |31I and in effect rivetsv the respective washersv together.

Suitable provision is made for oiling the motor bearings 86 and 87 from the, exterior of the case- 28' in which the motor, is. supported. For this. purpose passageways |38 formed in bosses |39.V on the interior of theA case 28 are. positionedY to form a continuation of passageways IM incom IrumicationY with the bearings 9.6 and 81 respectivelyv and; extending through bearing blocks 88. andr 8-9 respectively; To facilitate alinement of thepassageways each boss |39is shaped" to inter-l t ina recessl |42 formed in one end ofV the passageways |144- in the respective bearing. blocks. The recesses are-somewhat'largervthan the bosses sowas toallowfor tolerances' in manufacture. To( prevent leakage ofA oil from the passageways to the motor a gasket |43 is disposed between aY shoulder |44 formed on the brush and each respective bearing block.

The case 23 shown herein is formed in two parts as described in detail in my prior Patent No. 2,530,302 referred to above. Each of the parts is secured to the motor assembly in a rigid manner as by screws |46 (see Figure 3) Securing one end of the case to the head I5, screws |41 (see Figure 7) securing the opposite end of one of the parts to the motor and screws M8 securing the opposite end of the other part to the motor. Preferably a shield M9 overlies the screws |45 and joints between the parts so that the case has a neat and attractive appearance. Each shield is secured to the case 28 by a bracket I! (see Figure 3) intertting with a clamp 452 secured to the case 28 and by deforming an end i53 of the shield S49 to engage a shoulder 154 (see Figure 7 formed adjacent the opening H3 at the power terminal end of the razor.

While I have shown one embodiment of my invention it will be understood that I do not wish to be limited thereto since many modifications may be made and I therefore contemplate by the claims to cover such modifications as fall within the true spirit and scope of my invention.

I claim:

1. A shaver comprising a head, an arcuate comb removably mounted on the head, a cutter, means for oscillating the cutter in coaction with the inner side of the comb including a rock-shaft mounted in the head, the head shaped to provide hair receiving compartments at opposite sides thereof communicating with the comb interior and extending lengthwise of the head, each such compartment communicating with the comb interior, and a plate closing the outer side of each such compartment, each plate having a hinge-like mounting on the shaver at its lower end and adapted to be swung outwardly on such mounting to expose `the full length of said compartment for cleaning.

2. A shaver having, in combination, a head, an arcuate comb removably mounted on the head, the head shaped to provide hair receiving compartments at opposite sides thereof communicating with the comb interior and extending lengthwise of the head away from the comb, and a plate closing the outer side of each such compartment, each plate having a hinge-like mounting on the shaver at its end remote from the comb and adapted to be swung outwardly on such mounting to expose said compartment between such mounting and the comb for cleaning, and means coacting between the opposite end of each plate and the comb for the detachable engagement with the comb to hold the comb in position.

3. In a shaver in combination with a shaving head having a removable comb and a hair receiving compartment communicating with the comb interior, a closure member for normally closing said compartment and adapted to be moved to an open position to provide access to the compartment for cleaning, means coacting between said closure member and the comb for snap engagement therebetween upon movement of said member to the closed position, and means coacting between the head and the opposite end of said member providing a hinge-like connection and including a spring member stressed to urge said member in a direction to maintain said snap engagement and also in a direction to hold said member in the open position.

4. In a shaver, a head, a comb unit supported by said head and having slots formed thereon at opposite ends, resilient members at the base of said head and having curved edge portions, side plates each having a tongue to intert with the slots on said comb and having a second curved edge shaped to interiit with one of the curved edge portions `on said resilient member, said resilient members being shaped so that with the tongues intertting with the respective slots they are stressed to positively secure the comb in position on the head,

5. In a shaver, a head, a comb unit supported at one end of said head and having apertures formed on opposite sides thereof, spring members mounted at the opposite end of said head having outer curved edges, side plates mounted on opposite sides of said head, said plates being formed at one end with a projection shaped to interi-it in said apertures for securing the plates and comb assembly in position and at their opposite end with a second curved edge shaped to intert with said curved edge on the spring members so as to form a hinge, said Plates being spaced from said head to form hair receiving chambers on opposite sides of said head, said side plates being shaped to swing about said hinge for access to said chambers.

6. A shaver comprising a head, `an arcuate comb removably mounted on said head, said head being shaped to define la hair receiving compartment below said comb and within a space which would be defined by an extension of said comb, said hair receiving compartment communicating with the comb interior and extending lengthwise of said comb and also communicating with the exterior through an opening defined immediately beneath the lowermost portion of said comb, and a plate closing said opening and, hence, said hair receiving compartment, said plate having a hinge-like mounting on the shaver at its end remote from said comb and adapte-d to be swung outwardly on such mounting to expose said hair receiving compartment for cleaning.

IVAR JEPSON.

References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 2,196,098 Bruecker Apr. 2, 1940 2,234,929 Lynch Mar. 11, 1941 2,275,022 'Ihomas Mar. 3, 1942 2,331,500 Rand Oct. 12, 1943 2,370,542 Jepson Feb. 27, 1945 2,370,544' Jepson Feb. 27, 1945 2,379,969 Kobler July 10, 1945

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