US3900949A

US3900949A - Hair cutting apparatus

Info

Publication number: US3900949A
Application number: US485771A
Authority: US
Inventors: Robert S Anzalone
Original assignee: Individual
Current assignee: Individual
Priority date: 1974-07-05
Filing date: 1974-07-05
Publication date: 1975-08-26
Anticipated expiration: 1992-08-26

Abstract

A power hair cutter wherein a hollow open ended enclosure includes air movement means for drawing a subject''s hair away from the scalp and into the open end of the enclosure, wherein a cutter effects severance of the drawn hair and the air movement means simultaneously removes the hair cuttings. The apparatus also includes extensile and retractile spacer means for selectively locating the cutting apparatus relative to the subject''s head for predetermining the length of cut hair.

Description

United States Patent [191 Anzalone HAIR CUTTING APPARATUS [76] Inventor: Robert S. Anzalone, 9915 Second Ave., Stone Harbor, NJ. 08247 [22] Filed: July 5, 1974 [21] Appl. No.: 485,771

[52] US. Cl 30/133; 30/201 [51] Int. Cl. B26B 19/20; 8268 19/44 [58] Field of Search 7. 30/415, 133, 201

[56] References Cited UNITED STATES PATENTS 1,238,061 8/1917 Bourdelat 30/133 2,802,260 8/1957 Allcn v. 30/133 X 3,302,286 2/1967 Zucker 30/133 Aug. 26, 1975 Primary Examiner-A1 Lawrence Smith Assistant Examiner-J. C. Peters Attorney, Agent, or Firm-Robert K. Youtie [57] ABSTRACT A power hair cutter wherein a hollow open ended enclosure includes air movement means for drawing a subjects hair away from the scalp and into the open end of the enclosure, wherein a cutter effects severance of the drawn hair and the air movement means simultaneously removes the hair cuttings. The apparatus also includes extensile and retractile spacer means for selectively locating the cutting apparatus relative to the subjects head for predetermining the length of cut hair.

6 Claims, 5 Drawing Figures HAIR CUTTING APPARATUS BACKGROUND OF THE INVENTION While the use of electric hair cutters and pneumatic removal of hair cuttings are well known, such devices have been adapted primarily for shaving and close cropping of hair, and incapable of cutting, trimming or styling of hair of substantial length, of the order of several inches.

SUMMARY OF THE INVENTION It is, therefore, an important object of the present invention to provide hair cutting apparatus which overcomes the above-mentioned difficulties and is well suited for quickly, easily and conveniently cutting scalp hair to any selected length up to several inches, by merely engaging the subjects head with guide or spacer means of the device and energizing the air movement and cutter means to automatically extend the hair generally normal to and out from the scalp for severance by cutting means of predetermined location and simultaneous removal of hair cuttings.

It is a further object of the present invention to provide a hair cutting apparatus of the type described which affords a large range of adjustability for cut hair length, and which adjustability is extremely simple and convenient, accurately repeatable, and readily changeable, as desired.

It is still another object of the present invention to provide hair cutting apparatus having the advantageous characteristics mentioned in the preceding paragraph, which is uniquely simple in structure and operation, for durability and reliability throughout a long useful life.

Other objects of the present invention will become apparent upon reading the following specification and referring to the accompanying drawings, which form a material part of this disclosure.

The invention accordingly consists in the features of construction, combinations of elements, and arrangements of parts, which will be exemplified in the construction hereinafter described, and of which the scope will be indicated by the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal elevational view showing hair cutting apparatus of the present invention, partly broken away to illustrate interior construction.

FIG. 2 is a fragmentary view taken generally along the line 2-2 of FIG. 1.

FIG. 3 is a partial sectional view taken generally along the line 33 of FIG. 1.

FIG. 4 is a partial sectional view taken generally along the line 44 of FIG. 1.

FIG. 5 is a partial sectional view taken generally along the line 55 of FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENT portion 13, remote from the hand grip part 12, may be provided with an air permeable screen region or grill work 15 on the side opposite to the finger receiver 14, and suitably mounted interiorly of the housing portion 13 is a motor 16 and motor cooling fan 17. The motor is oriented with its axis generally transverse of or normal to the longitudinal dimension of the housing 11, and located interiorly of the housing generally on the same side thereof as the finger receiver or gripping ring 14.

On the opposite side of the housing 11, adjacent to the air passageway 15 and opposite the finger grip 14, there may be mounted in the housing an electric motor switch 20 having an actuating button 21 exteriorly of the housing. Suitable electrical conductor means or wires, as at 22 extend between the motor 16 and switch 20, and extend from the latter, as at 23 exteriorly of the housing, say outwardly therefrom through the handgrip end, as at 24.

' The housing 11 may be suitably fabricated, say of plastic or other material, as desired, and may be openably retained in closed condition, say for convenient access to the interior thereof, as in repair or replacement of parts, as by removable fastener means 25.

A hollow housing extension is generally designated 30, and extends from the motor mounting portion 13 generally transversely from the housing 11 on the side thereof adjacent to the motor 16. The housing extension 30 may be generally tubular and open ended in configuration, tapering outwardly toward an outer open end 31, and having its larger inner end 32 suitably secured, as by a ferrule 33, or other suitable securement means, to the motor mounting housing portion 13. Thus, the hollow tubular housing extension 30 detachably secured in generally axial alignment with the motor 16. A motor shaft 35 extends from the motor 16 generally spacedly within the housing extension 30 and terminates, as at free end 36, adjacent to and short of the open end 31 of the housing extension. Spaced inwardly from the open housing extension end 31 and free end 36 of the motor shaft 35, there may be provided on the rotary shaft air movement means 37, such as a fan including a hub 38 circumposed about the shaft, and a plurality of fan blades 39 projecting from the hub generally radially outwardly of the shaft. The radial fan blades 39 may terminate adjacent to and spaced inwardly from the inner surface of the housing extension 30.

Also carried by the motor shaft 35, for rotation therewith, adjacent to the free shaft end 36, may be a cutter, generally designated 40. Thus, the cutter 40 is located in spaced relation intermediate the fan or air mover 37 and the open, outer end 31 of the hollow housing extension 30. The cutter 40 may include a generally flat or disc-shaped hub 41 fixedly secured coaxially on the shaft 35 for rotation therewith, and a plurality of cutting blades 42 projecting fromthe periphery of the disc or hub 41 generally radially outwardly with respect to the axis of shaft 35. The cutter blades 42 may terminate at their radially outer edges proximate to the inner surface of the housing extension.

The open outer end 31 of the generally conical, outwardly tapering hollow housing extension 30, may be provided with an open grillwork, perforate structure or mesh 45.

The hollow housing extension 30 is provided at spaced locations about its tubular wall, intermediate the air mover or fan 37 and inner end 32, with a plurality of through openings or outlets 46, each communicating between the interior and exterior of the housing extension through the side wall thereof. The outlet openings 46 may each be provided, on the outer side of housing extension 30, with an open ended, generally tubular projection or nozzle 47 extending obliquely outwardly and away from the housing extension end 31.

On the interior surface of the housing extension 30, there is provided a generally annular internal skirt 48 which-spacedly overlies the outlet openings 46. That is, the internal skirt 48 extends from the inner surface of the housing extension 30, between the inner end 31 and the outlet openings 46, in the form of an annular frustoconical wall 49, sloping inwardly or tapering in the direction toward the housing extension open outer end 31. From the inner or smaller end of the frusto-conical wall 49, the skirt 48 continues in the form of a frustoconical wall 50 located in inwardly spaced, facing relation with respect to the housing extension outlet openings 46, and terminating at a longitudinally outer edge 51 of generally annular configuration located proximate to the free ends of sand blades 39. Thus, the skirt 48 defines a baffle for directing fluid flow outwardly through the several outlet openings 46 and discharge nozzles 47.

Exteriorly on the housing extension 30, say between the discharge nozzles 47 and open outer end 31 of the housing extension, there may be provided suitable mounting means, such as pairs of longitudinally spaced

bosses

53 and 54, being provided with respective threaded extension or

studs

55 and 56. The bosses and studs 53-56 provide mounting means for a plurality of elongate spacers, each generally designated 58. The spacers may each include an elongate member or bar 59 having adjacent to one end a longitudinally extending slot 60 receiving a pair of

studs

55 and 56. Holding members, such as

wing nuts

61 and 62 may be threadedly engaged about

respective studs

55 and 56 for clamping the associated elongate member or bar 59 against the

adjacent studs

53 and 54. Thus, each elongate member or bar 59 is selectively adjustably positionable longitudinally, for extension and retraction relative to said housing extension, and releasably holdable in any selected position of its extensile and retractile movement by operationg of the

nuts

61 and 62.

It will be seen, FIG. 1, that the spacer bars 59 have their outer ends projecting considerably beyond the open outer end 31 of the housing extension, on the order of several inches beyond the housing extension, for a purpose appearing presently. Carried by the distal or outer ends of respective spacer bars 59 may be rollable elements 63, such as wheels or balls for rolling engagement with a guiding surface.

For example, the hair cutting device 10 may be manually manipulated for rolling engagement of the spacer guide elements 33 with a subjects scalp. There may be a plurality of such rollable guide elements, say three or more, to facilitate maintenance of the housing extension generally normal to the scalp.

In operation, as by energization of the motor 16 upon closure of the switch 20, the shaft is rotated axially, to direct a stream of air generally in the direction of arrows 65, inwardly through the grillwork of open end 31, partially along the housing extension 30, and outwardly therefrom through the skirt or baffle 48, outlet openings 46 and discharge nozzles 47. In addition to this generally longitudinal path of fluid movement, there is imparted to the airstream by the air mover 37 an angular component of movement. That is, the fluid or airstream moves through the housing extension 30 in a generally spiral path.

With the scalp engaging element 63 of spacer means 58 in position on a subjects head, the hereinbefore described airflow operates as a vacuum or suction force to draw the subjects hair outwardly, generally normal to the scalp, for entry into the housing extension through the open grill work 45 of the outer extension end 31. Rotation of the cutter 40 effects severance of the hair ends at a predetermined distance from the scalp, the severed ends or cuttings being pneumatically and centrifugally conveyed in the directions of arrows 65 for exhaust through outlet openings 46 and nozzles 47. The skirt or baffle 48 effectively assures against undue retention of hair cuttings in the housing extension.

While the foregoing description of operation is illustrative of the advantageous operation of spacer means 58, it is appreciated that the hair cutting device 10 may be moved toward a subjects scalp and commence cutting before engagement of the spacer means with the head. That is, by suitably powerful air mover means 37, the subjects hair is caused to stand out from the scalp and enter the housing extension end 31 with the head engaging die means 63 spaced from the head. Thus, hair cutting proceeds until the guide means 63 engages the head, whereupon the hair is automatically cut to the desired length.

From the foregoing, it is seen that the present invention provides a hair cutting apparatus which is uniquely simple in structure and operation, and otherwise fully accomplishes its intended objects.

Although the present invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it is understood that certain changes and modifications may be made within the spirit of the invention.

What is claimed is:

1. A hair cutting apparatus comprising a manually portable housing, a motor in said housing, a hollow extension on said housing extending generally axially of said motor and terminating in an open end, a rotary motor shaft extending from said motor spacedly within said extension and terminating short of said open end, outlet means on said extension communicating between the interior and exterior thereof and spaced inwardly from said open end, air movement means in said extension carried by said shaft intermediate said open end and said outlet means for directing air inwardly through the former and outwardly through the latter, so that a subjects growing hair is drawn away from the subject toward and into said open end, a cutter in said extension carried by said shaft intermediate said air movement means and open end, for severing growing hair and removing the severed hair through said outlet means, said air mover means comprising a plurality of fan blades extending radially from said shaft, said fan blades being spaced inwardly from said cutter and imparting angular movement to directed air for centrifugally displacing hair cuttings radially outwardly toward said outlet means, and a baffle in said extension for directing centrifugally displaced hair cuttings to said outlet means, said baffle comprising an internal skirt in said extension having an inner edge spaced from the inner surface of said extension, said fan blades terminating proximate to said inner skirt edge.

2. A hair cutting apparatus according to claim 1, in combination with spacer means projecting from said extension beyond said open end for guiding engagement with the person of the subject, and adjustment means for selectively adjusting the distance of projection of said spacer means, to control and determine the length of cut growing hair.

3. A hair cutting apparatus according to claim 2, in combination with roller means on the projecting ends of said spacer means for rolling engagement with a subjects head.

4. A hair cutting apparatus according to claim 1, said cutter comprising a plurality of cutting blades extending generally radially from said shaft.

5. A hair cutting apparatus comprising a manufally portable housing, a motor in said housing, a hollow extension on said housing extending generally axially of said motor and terminating in an open end, a rotary motor shaft extending from said motor spacedly within said extension and terminating short of said open end, outlet means on said extension communicating between the interior and exterior thereof and spaced inwardly from said open end, air movement means in said extension carried by said shaft intermediate said open end and said outlet means for directing air inwardly through the former and outwardly through the latter, so

that a subjects growing hairv is drawn away from the subject toward and into said open end, a cutter in said extension carried by said shaft intermediate said air movement means and open end, for severing growing hair and removing the severed hair through said outlet means, said air mover means comprising a plurality of fan blades extending radially from said shaft, said fan blades being spaced inwardly from said cutter and imparting angular movement to directed air for centrifugally displacing hair cuttings radially outwardly toward said outlet means, and a baffle in said extension for directing centrifugally displaced hair cuttings to said outlet means, said cutter comprising a hub circumposed about said shaft, and a plurality of cutting blades extending generally radially from said hub, whereby said hair cuttings are formed in an annular region adjacent to the inner surface of said extension for discharge between said skirt and inner surface to said outlet means.

6. A hair cutting apparatus according to claim 5, in combination with spacer means projecting from said extension beyond said open end for guiding engagement with the person of the subject, adjustment means for selectively adjusting the distances of projection of said spacer means to control and determine the length of cut growing hair, and roller means on the projecting ends of said spacer means for rolling engagement with a subjects head.

Claims

1. A hair cutting apparatus comprising a manually portable housing, a motor in said housing, a hollow extension on said housing extending generally axially of said motor and terminating in an open end, a rotary motor shaft extending from said motor spacedly within said extension and terminating short of said open end, outlet means on said extension communicating between the interior and exterior thereof and spaced inwardly from said open end, air movement means in said extension carried by said shaft intermediate said open end and said outlet means for directing air inwardly through the former and outwardly through the latter, so that a subject''s growing hair is drawn away from the subject toward and into said open end, a cutter in said extension carried by said shaft intermediate said air movement means and open end, for severing growing hair and removing the severed hair through said outlet means, said air mover means comprising a plurality of fan blades extending radially from said shaft, said fan blades being spaced inwardly from said cutter and imparting angular movement to directed air for centrifugally displacing hair cuttings radially outwardly toward said outlet means, and a baffle in said extension for directing centrifugally displaced hair cuttings to said outlet means, said baffle comprising an internal skirt in said extension having an inner edge spaced from the inner surface of said extension, said fan blades terminating proximate to said inner skirt edge.

3. A hair cutting apparatus according to claim 2, in combination with roller means on the projecting ends of said spacer means for rolling engagement with a subject''s head.

5. A hair cutting apparatus comprising a manufally portable housing, a motor in said housing, a hollow extension on said housing extending generally axially of said motor and terminating in an open end, a rotary motor shaft extending from said motor spacedly within said extension and terminating short of said open end, outlet means on said extension communicating between the interior and exterior thereof and spaced inwardly from said open end, air movement means in said extension carried by said shaft intermediate said open end and said outlet means for directing air inwardly through the former and outwardly through the latter, so that a subject''s growing hair is drawn away from the subject toward and into said open end, a cutter in said extension carried by said shaft intermediate said air movement means and open end, for severing growing hair and removing the severed hair thrOugh said outlet means, said air mover means comprising a plurality of fan blades extending radially from said shaft, said fan blades being spaced inwardly from said cutter and imparting angular movement to directed air for centrifugally displacing hair cuttings radially outwardly toward said outlet means, and a baffle in said extension for directing centrifugally displaced hair cuttings to said outlet means, said cutter comprising a hub circumposed about said shaft, and a plurality of cutting blades extending generally radially from said hub, whereby said hair cuttings are formed in an annular region adjacent to the inner surface of said extension for discharge between said skirt and inner surface to said outlet means.

6. A hair cutting apparatus according to claim 5, in combination with spacer means projecting from said extension beyond said open end for guiding engagement with the person of the subject, adjustment means for selectively adjusting the distances of projection of said spacer means to control and determine the length of cut growing hair, and roller means on the projecting ends of said spacer means for rolling engagement with a subject''s head.