US2212856A

US2212856A - Clipping device

Info

Publication number: US2212856A
Application number: US197607A
Authority: US
Inventors: Dalkowitz Godfrey
Original assignee: American Safety Razor Corp
Current assignee: American Safety Razor Corp
Priority date: 1938-03-23
Filing date: 1938-03-23
Publication date: 1940-08-27
Anticipated expiration: 1957-08-27

Description

1940-, G. DALKOWITZ 2,212,856

CLIPPING DEVICE Filed March 23, 1938 2 Sheets-Sheet 1 1295/ 296. F5 7, 273.6. I g

A 24 Z% I/ZJ a I 2 0 34 52 Q. @t is "4 36 "@1 :KI 50 3f 52 B2 INVENTOR. I

G. DALKOWITZ CLIPPING DEVICE Aug. 27, 1940.

Filed March 23, 1938 2 Sheets-Sheet 2 IN VENTOR Patented Aug. 27, 1940 srArEs CLIPPING DEVICE Godfrey Dalkowitz, Brooklyn, N. Y., assignor to American Safety Razor Corporation, Brooklyn, N. Y., a corporation of Virginia Application March 23,

15 Claims.

This invention relates in general to hair clippers and has particular reference to hair clippers that are intended for operation within or about orifices or cavities, such as the nostrils or the aural cavities to remove undesirable hair growths therefrom.

While my invention has been disclosed herein in its application to hair clipping devices of the character mentioned it is to be understood that it is not necessarily restricted to such application and that said invention as a whole and, in particular, certain features thereof, may have other applications.

Hair clipping devices as ordinarily constructed are not adapted for removing hair growing with in or surrounding "1B nostrils or hair growing around the ears. This may be due among other things to the unsuitable shape, size or location of the parts so that they cannot reach the desired places or are diiiicult to manipulate.

The general object of my invention is the provision of a hair clipping device that is simple, convenient and effective in operation, and low in cost of manufacture and maintenance for the purpose of clipping hair growing in and around orifices and cavities.

This object and such other objects as may hereinafter appear or be pointed out are attained by my invention, illustrative embodiments of which have been disclosed in the drawings, in which:

Figure 1 is a plan view of one embodiment of my invention;

Figure 2 is a front elevational view thereof;

Figure 3 is a plan view of one of the members constituting the device of Figure 1;

Figure 4. is a front elevational view thereof;

Figure 5 is a plan view of another of the members constituting the device of Figure 1;

Figure 6 is a front elevational view thereof;

Figures 7, S 9 are sectional views on the lines 7-4, 8--8 and 9-9 respectively of Figure 2 locking in the direction of the arrows;

Figures 10 and ii are respectively a front elevational and an end view of another embodiment of my invention;

Figure 11a is an enlarged sectional view on the line Hat to of Figure 10 looking in the direction of the arrows;

Figure 12 is a transverse sectional view on an enlarged scale, similar to Figure '7 through the cutting portion of another embodiment of my invention;

Figure 13 is a perspective view, onan enlarged 1938, Serial No. 197,607

scale, of the outer cutting portion of still another embodiment;

Figures 14 and 15 are respectively front and side elevational views of a further embodiment of my invention; and

Figure 16 is a longitudinal sectional View on an enlarged scale, through a further embodiment of my invention.

Referring to the drawings in detail it will be observed that the embodiment of my invention 10 illustrated in Figures 1 to 9 is shown as comprising a pair of

complementary members

20 and 22 each provided with'an intermediately located pivot portion, a cutting or clipping portion at one end thereof and a handle portion 'at the 15 other end thereof. The general appearance of these members may be compared to the two halves of a pair of scissors. Whereas, however, the pivot of a'pair of scissors is positioned transversely to the plane of motion of the two blades, 20 that is, if the blades are arranged to move in the plane of the paper as shown in Figurel, the axis of pivoting would be perpendicular to the plane of the paper, it will be observed that the pivotal axis of the members of my improved clip- 25 ping device is shown as running longitudinally and parallel to the plane of the paper in Figure 1, so'that as the handles are manipulated they commence to move about the pivotal axis substantially perpendicularly to the plane of the paper, while the cutting portions move over each other, as will hereinafter be more fully described, in an are about the pivotal axis.

The

numerals

24, 26 and 2%] denote respectively the cutting parts, the pivotal portion and the handle portion of the member 20, while the

numerals

34, 36 and'38 denote respectively the corresponding parts of the member 22, and these members are shown pivotally united by the pivot pin Ml passing through the portions 26. and 36. 4 By referring particularly to Figure 7, in connection with the other views of this embodiment it will be observed that the cutting member 24 is shown as in the form of a tubular sleeve having teeth 42 formed thereon by slots running longitu- 45 dinally inwardly from the outer end of the sleeve. The teeth 48 of the cutting portion 35 of the other member are formed on its end portion, which has a cylindrical outer surface having a curvature substantially identical with that 50 of the inside surfaces of the sleeve 24, so that it may bear thereagainst in close contact'and remain so during the relativev sliding movement of these parts over each other; and the axis of ourvature of theseparts coincides with the axis of l d the pivot 40. From Figure 7 it will appear that the transverse section of the engaging surface of the inner cutting portion extends through less than a circle. In fact, as illustrated, it extends through even less than a semicircle. It is positioned in engagement with the toothed portion of the outer member 24 so as to cooperate there with in the clipping action.

Since the range of movement of the inner member is confined to a relatively restricted arc the toothed portion of the outer member 25 is preferably limited to that region that is contacted by the inner member, that is to the portion to which the cutting action is limited.

:.- Slots in the outer member beyond the cutting area would be useless for cutting purposes and might be objectionable in that they would tend to catch and pull out hairs. For that reason it will be observed that the outer member has been shown with a solid upper portion and only its lower portion that is in engagement with the inner cutter has been shown as slotted.

In order to secure contact between the opposed faces of the cutting portions, which is desirable for their effective action, I may provide means for pressingthem into engagement, and such means is preferably resilient in nature. By way of example, the portion of the member 22 may be provided with sufiicient spring so that the outer surfaces of the cutting portion thereof are pressed into contact with the inner surfaces of the cutting portion 24. Obviously it must be so contoured relatively to the opposed portion 52 of the member 29 that, the relative pivotal movement of the

members

28 and 22 will not be hindered. It will be understood that the portion 52 of the member 29 may also be made resilient so as to act in opposition to the portion 59, or, on the other hand, that the portion 56 may be made rigid, and only the portion 52 resilient. The same effect might of course also be secured by a separate spring suitably applied.

In Figures 10 and 11 I have shown an embodiment of my invention in which the cutting portions are similar. to those shown in the first embodiment. They comprise a sleeve-like member 80 provided at its tapering end portion with cutting teeth 82. Within said sleeve and pressed thereagainst by the resilient portion 84 is an inner cutter member 86. The sleeve 80 is located at one end of a member provided with a lug 88 and a handle portion 90. The inner member 85 and the resilient portion S i are parts of a second member provided with a lug 92 and a handle portion 94, and these two members are pivotally united by a pin shown at 96 which passes through the lugs 85 and 92 and which will be further described hereinafter.

It will be observed that the

handle portions

90 and 94 besides being spaced laterally from each other, are both oiTset a considerable distance in a radial direction from the pin 98 which represents the axis of pivoting of the parts, as clearly appears from Figure 11. This ofisetting oi the handle portions results in a gain in leverage and a greater ease in manipulation. In Figure 11 the movement of the handle portions 90 and S4 is indicated by arrows, and it will be noted that this motion is more in line with the motion of the thumb and finger of a user. than is the case with the construction in Figure l, and this fact accoimts for the aforementioned advantages.

As an added feature I have provided means to return the parts of the clipper to a normal position when they are released. For this purpose I have shown by way of example, the pin 96 as provided with an extension 98 which is surrounded by a coil spring lfiil the ends of which are anchored respectively in the lug 88 and a handle portion 94, whereby the spring tends to bring the two pivoted members back into a normal position to which they will always tend to return when displaced therefrom. Such normal position may correspond to that shown in Figures 10 and 11, in which further movement due to the closing action of the spring we is prevented by the contact of portions of the two handle carrying members.

If desired, additional stop members may be provided by which the normal position of the parts may be determined other than by the contact of the two pivoted halves of the clipper.

In Figure 11a, I have indicated the slots between the teeth 82 of the outer cutter member 80 by 83 and the slots between the teeth 85 of the inner cutter by 8'1. It will be observed that the slots 83 and 8'! are shown in alignment. When they are so aligned it is obvious that hairs entering the aligned slots will be clipped as soon as the inner and outer cutters are relatively moved.

The normal position of the parts, into which they are moved by the spring, may correspond to this aligned position of the slots. In that event if the user inserts the instrument into the nostril without moving the handles clipping will take place as soon as the handles are moved from the normal.

On the other hand, where a user moves the handles away from normal before inserting the clipper the alignment of the slots at the normal position as just described, would be ineffective, and may be provided at points other than the aforesaid normal position. It might by way of example be provided at the maximum spread position of the handles, which might be determined by stop means preventing spreading of the handles beyond a certain point.

Figure 12 shows another embodiment of my invention. In this embodiment the outer cutting portion is shown as being a portion only of a tubular sleeve; that is to say, instead of this .outer portion being a cylindrical sleeve, as shown at 24 in Figure 7, to form the cutting portion of Figure 12, portions of the sleeve are removed. The cutting portion is indicated at M, and is shown as slotted so that cutting edges 56 are formed where the slots intersect the inner surface. The inner cutting portion is provided with slots fiil whereby cutting edges 62 are formed thereon which cooperate with the edges 58 of the outer cutting portion to sever hair entering the slots, as the inner cutter oscillates. Ihave shown the slots of the outer cutting portion as formed with diverging walls so that the edges 56 are acute. This construction may be found desirable for certain purposes, although it is not necessary for the proper functioning of the device.

In Figure 13 a sleeve-like outer cutting member ill is shown as rounded at its end portions and slotted so that cutting edges are formed thereon. Not merely will this construction be effective for performing the cutting operation at the sidewalls, but the cutting will also be effected at the extreme end portions, a function which is absent in the embodiment of Figure l, in which the end portions of the cutting members are open.

It will be observed that the slots are shown as of two types; those of the first type are marked I2 and merge into each other at the end portions of the cutting member ID, and the slots of the second type, marked I I, terminate short of the extreme end portion, and are located between each pair of slots I2. It will also be observed that the end portions of the cutting member, aside from their clipping function also have a protective or guard action.

In Figures 14 and 15 I have shown an embodiment' in which the looped handle portions of the preceding embodiments are replaced by flat pieces or wings I02 and I M respectively carried by the two pivotally united members that constitute the clipper. A coil spring I95 surrounding an extension I08 of pivot-pin III performs a function similar to that described hereinabove in connection with the embodiment of Figures 10 and 11.

The cutting portions are shown as comprising an outer cutting member H2 that may be described by saying that it is like one-half of the tubular sleeve of the embodiment of Figure 1, while the inner cutting member H4 may be of the form shown in Figure 1. The cutting portions I I2 and II might also be compared to the arrangement shown in Figure 12. The cutting members are preferably pressed against each other so as to secure an effective cutting action and for this purpose either one or both of the portions IIS and H8 may be made resilient.

The slots of the respective portions may be so arranged that they are in alignment in the normal position of the clipper, as has been described, in connection with the embodiment of Figure 10.

In manipulating this form of my invention the thumb and forefinger are used to press together the wings I82 and IE4, whereby the cutters H2 and IM move over each other in a movement about the pin lit. The return move- :ment is effected by spring I96.

In Figure 16 I have shown an arrangement that is more convenient in many respects than any of the preceding embodiments. As before there are a pair of cutters. One of them, numbered I29, which may be described as the outer cutter, or as the stationary cutter, is of the same type as that of Figure 1 except that teeth have.

been shown on all sides so that cutting may take place all around the periphery of the outer cut ter, and for this purpose the inner cutter I22, which may be referred to either as the inner cutter or as the movable cutter, andwhich is shown as similar to the inner cutter of Figure 1, may be given a rotational movement of sufilcient range by mechanism to be described.

The movable cutter I22 is carried on one end of a stem IZ I, provided with an intermediate resilient portion I26, and the stem I26 is further providedat its other end with coarse-pitched screw threads indicated at I28.

The screw threads I28 are adapted to be received within the complementary female threads I38 of a sleeve I32 which is slidably mounted on the end I33 of an elongated member I3d that carries the cutting member I28 at its other end. The member I34 is shown as provided with lateral extensions I36 which are adapted for engagement by the fingers of the user while the thumb presses against the bottom of the sleeve I32 so as to cause it to slide inwardly over the end I33 of the member IS I. When the thumb pressure is released, thehollow member I32 is caused to move outwardly by any suitable or preferred means, such as the coil spring I38 of member Iii-I and abutting against a collar I III carried by the stem IZ I at one end, and against.

a shoulder M2 provided within the sleeve I32 at its'other end. It will be observed that the collar Hit besides acting as an abutment for the spring ferred means, such as the pin or screw I45 carried by the sleeve I32 and projecting inwardly into a groove M8 on the end I 33.

Since relative movement of sleeve I32 and the end I33 is limited to sliding it is clear that such relative sliding movement must result in rotation of the stem I24 in the member I34, this ro-' tation being caused by the action of the threaded portions I28 and I30.

The portion I48 of member I34 may also be made resilient if desired, in addition to the resiliency provided for the portion I25 of stem I2 2, in order -to secure a pressure of the cutting portions I 26 and I22 against each other. On the other hand, also, the portion MB alone may be made resilient, while the portion I25 may be made rigid.

If desired, stop means may be provided to determine the normal position of stem IM. Such stop means may be of any suitable or preferred form, such as the pins I50 and I52, carried respectively, by the stem IN and the member I35,

and adapted to engage each other. The stops may be so positioned that alignment of the slots of the inner and outer cutters occurs in the normal position, as already described in connection with the embodiment of Figure 10.

While I have herein disclosed several illustrative embodiments of my invention it will be understood that the same may be embodied in many other forms without departing from the spirit thereof as will be obvious to those skilled in the art and that the disclosure herein is by way of illustration merely and is not to be con strued in a limiting sense and that I do not limit myself other than as called for by the prior art.

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

1. In a hair clipping device: two members freely movable about an axis, and cooperating cutting portions, one carried by each of said members, said cutting portions being offset radially from said axis and having surfaces sliding over each other, and said surfaces being surfaces of revolution coaxial with said axis, and resilient means separate from said cutting portions and acting in a direction at an angle to said axis for maintaining said surfaces in sliding contact.

2. A hair clipping instrument comprising two members each having an end portion providedwith at least one slot therein, the side walls of said slots being provided with cutting edges, and

said members from the ends on which said slot-- ted portions are located.

3. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means at the opposite ends thereof, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve.

4. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means at the opposite ends thereof, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve but spaced therefrom in an axial direction.

5. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting eiement carrying said sleeve at one end thereof, said supporting elements having handle means thereon, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve and being spaced therefrom.

6. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means in the form of loops, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve, and said loops lying substantially in a plane parallel to the axis of said pivot means.

7. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means in the form of loops, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve, and said loops lying substantially in a plane parallel to but offset from the axis of said pivot means.

8. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means thereon, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve, and said handle means being offset a relatively substantial distance in a radial direction from the axis of said pivot means.

9. A hair clipping device comprising a member having cutting teeth thereon, an outer tubular sleeve surrounding said member and provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said member at one end thereof, a second supporting element carrying said sleeve at one end thereof, said supporting elements having handle means thereon, and pivot means uniting said respective supporting elements, said pivot means being substantially coaxial with said tubular sleeve, and said handle means being oifset a relatively substantial distance in a radial direction from the axis of said pivot means, and being spaced from said pivot means in axial direction.

10. A hair clipping device comprising a memher having cutting teeth thereon, a second member also provided with cutting teeth so positioned as to be adapted to cooperate with the teeth of said first mentioned member in a clipping action, a supporting element carrying said first member at one end thereof, a second supporting element carrying said second member at one end thereof, said supporting elements having handle means at the opposite ends thereof, and pivot means located exteriorly of the two members and uniting said respective supporting elements.

11. A hair clipping device provided with a closed tubular portion pierced by slots, at least one of said slots passing across the closed end of said tubular portion, and the walls of said slots being provided with cutting edges, and an inner member provided with cutting edges adapted to cooperate with the cutting edges of said tubular portion when they are moved relatively to each other, pivot means about which said tubular portion and said inner member are movable, said pivot means being spaced from said tubular portion and said member, and means for moving said member relatively to said tubular portion. 1

12. A hair clipping device having two members freely movable about an axis, and cooperating cutting portions, one carried by each of said members, said cutting portions being oifset radially from said axis, and means for causing said members to move relatively to each other about said axis comprising a pivot positioned in alignment to said axis but beyond said member and operating mechanism swinging about said pivot. 13. In a hair clipper a pair of members, a pivot uniting said members, one of said members being provided with a cutting area having cutting edges arranged in a surface of revolution substantially coaxial with said pivot, said cutting edges being spaced in an axial direction from said pivot, the other of said members being provided with a cutting area complementary to that of said first mentioned member and adapted to cooperate therewith in a clipping action, and means for pressing said cutting areas together, said means acting in a direction at an angle to the axis of the pivot.

14. In a hair clipper a pair of members, a pivot uniting said members, one of said members being provided with a cutting area having cutting edges arranged in a surface of revolution sub stantially coaxial with said pivot, and the other of said members being provided with a cutting area complementary to that of said first mentioned member and adapted to cooperate therewith in a clipping action, and means acting between said pivot and said cutting areas for pressing them together in a direction at an angle to the axis of the pivot.

15. In a hair clipping device, two members freely movable about an axis and cooperating cutting portions carried respectively by each of said members, said cutting portions being offset radially from said axis and having surfaces sliding over each other, and said surfaces being surfaces of revolution coaxial with said axis and means for giving said two members a relative movement comprising a pivot in alignment with said axis and located beyond said members.

GODFREY DALKOWITZ.