US3183589A - Blade comb hair trimmer having tooth structure permitting variable depth of cut - Google Patents

Blade comb hair trimmer having tooth structure permitting variable depth of cut Download PDF

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US3183589A
US3183589A US209377A US20937762A US3183589A US 3183589 A US3183589 A US 3183589A US 209377 A US209377 A US 209377A US 20937762 A US20937762 A US 20937762A US 3183589 A US3183589 A US 3183589A
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teeth
blade
plate
plates
opposed
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Szabo Zoltan
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades

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  • This invention relates to a hair cutting apparatus having at least one stationary blade held within a frame, where-by the rframe is divided into two plates in the plane of the blade and the blade is located between the two plates.
  • such a hair cutter has to be suitable both for cutting hair away as well as for Shaving in a simple and handy manner. Without changing the blade, a variation of the type of hair cut desired at the time as well as of the cutting depth has to be possible with sure protection against injuries from cuts.
  • each plate of the double comb comprises two rows of comb teeth, whereby the effective length of the comb teeth of one row differs from that of any other row, and the blade between the rows of one comb side is arranged as partially filling the gaps between the teeth of the comb.
  • FIG. 1 is a top view of the hair cutter without blades
  • FIG. 2 is a sectional view of the hair cutter as taken on the line II-II of FIG. 1;
  • FIG. 3 is a longitudinal section of the hair cutter as taken on the line IIIIII of FIG. 1;
  • FIG. 4 shows a plate of the hair cutter with blades inserted.
  • the two plates 5 and 6 of the hair cutter 7 lie against each other with their faces 8 and 9 and are pressed against each other by a latch 10 adapted to exert a slight wedging action.
  • the latch -10 which is integral with the plate 5, projects into an aperture 11 in plate 6.
  • the latch can be moved with slight angular displacement over a lug 13 of plate 6.
  • the two blades 14 and 15, which are simply made like razor blades, are seated respectively with their holes 18 and 19 on the two pins 16 and 17 of plate 5.
  • the cutter blades '14 and may be made in two variants.
  • the longitudinal axis thereof is at the same time the connecting median line of the two holes 18.
  • the connecting median line 20 of the holes 19 on the other hand is a parallel to the longitudinal median line 21 of blade 15 and a :few tenths of a millimeter away from it.
  • the face 9 of plate 6 is provided with a recess so that the faces 8 and 9 lie with only a comparatively narrow contact surface along the whole length of the blades 14 and 15, so that the two plates 5 and 6 with the inter posed blades rest with great certainty along the entire length of the blades even if there is dirt in the hair cutter.
  • Plate 5 has two rows of comb teeth 23 and 24 at its opposite sides and plate 6 has two rows 25 and 26.
  • the teeth of any row are equal among themselves.
  • the teeth of the tour rows are of such length and shape that the effective cutting depth of the razor may be selected depending upon the row of teeth that is held against the skin during cutting.
  • the teeth 24 are longest, the teeth 23 next in length, and the teeth 25 and 26 the shortest and substantially identical in length.
  • the cutter In the cutting of hair with a device of this nature the cutter is normally held at an acute angle to the area of the body on which the hair is being trimmed and moved in the direction of the hair growth.
  • the teeth 24 are curved as indicated and have cam portions 27 at their tips.
  • the cam portions are rounded to avoid scratching the scalp and increase the eifective length of the teeth when the cutter is held at an acute angle to the head with the cam portions engaging the skin and with the teeth 26 on the inner side of the angle.
  • Such arrangement results in the longest cutting depth for ordinary cutting.
  • the apparatus acts as a comb with sharp teeth and the hair is only pinked.
  • the next shorter cutting depth is obtained with the teeth 23 adjacent to the skin, and the finest, as in shaving, is obtained by holding the device with the teeth 25 resting on the skin.
  • the range of cutting depths may be further varied; for example, in the design of the blade 15 illustrated in FIG. 4 the connecting median line 20 of the holes 19 is displaced parallel to the longitudinal median line so that upon turning the blade outwardly with its cutting edge directed toward the latch th cutting edge lies nearer the ends of the comb teeth 24. Blade 14 could be similarly constructed if desired.
  • the device may be easily and safely used either to cut ones own hair or by another.
  • the cutter may initially be held in position for the maximum length of cut, to out the longest hair and progressively shifted to the position affording shorter lengths of cut in order to achieve the desired contours, shaping, and finally shaving of the neck.
  • the plates 5 and 6 may be made of any suitable, inexpensive material, such as one of the known plastics, and the cutter is constructed in such configuration as to be conveniently held and manipulated manually, without the necessity -for an additional handle.
  • the hair cutting apparatus could be designed to hold only a single blade extending :from one comb row to the other of plates 5 and 6.
  • Hair cutting apparatus comprising "a pair of opposed plates, each of said plates having a row of teeth extending lfl'OIll its opposite sides, opposed teeth of the plates lying in superposed relationship, means on one plate for positioning a blade with the cutting edges thereof extending between the teeth at each of the opposed sides of the plates, means securing the other plate into face-to-face relationship with said one plate, the teeth of one plate separated from the opposed teeth of the other by an edge portion of said blade positioned therebetween, one of said plates having a row of teeth of substantially greater length than the teeth of any other rows, the opposed row of teeth of the other plate being of a length barely to extend beyond the edge of the blade, said longest row of teeth having an outer portion inclined toward the plane of the blade and having cam means on the tip portion projecting beyond the plane of said blade, whereby the cutting depth is longest with said cam means held against the skin and is slightly shorter with the inclined outer portion held against the skin, the teeth at the opposite side of one of the plates being substantially shorter than said longest row of teeth, and the opposed teeth of

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  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Description

May 18, 1965 z. szABd 3,183,589
BLADE COMB HAIR TRIMMER HAVING TOOTH STRUCTURE PERMITTING VARIABLE DEPTH 0F CUT Filed July 12, 1962 INVENTOR ZOLTAN SZABO United States Patent 3,183,589 BLADE COMB HAIR TRIMlVIER HAVING TOOTH STRUCTURE PERMITTING VARIABLE DEPTH 0F CUT Zolta'm Szab, Drosselstrasse 15, Zurich, Switzerland Filed July 12, 1962, Ser. No. 209,377 2 Claims. (Cl. 30-30) This invention relates to a hair cutting apparatus having at least one stationary blade held within a frame, where-by the rframe is divided into two plates in the plane of the blade and the blade is located between the two plates.
According to the invention, such a hair cutter has to be suitable both for cutting hair away as well as for Shaving in a simple and handy manner. Without changing the blade, a variation of the type of hair cut desired at the time as well as of the cutting depth has to be possible with sure protection against injuries from cuts.
With the hair cutter according to the invention this problem is essentially solved in that the frame is a double comb, and each plate of the double comb comprises two rows of comb teeth, whereby the effective length of the comb teeth of one row differs from that of any other row, and the blade between the rows of one comb side is arranged as partially filling the gaps between the teeth of the comb.
Further features of the invention will appear from the following description and claims, taken in conjunction with the accompanying drawing, wherein there is shown, purely by way of example, one preferred form of embodiment.
FIG. 1 is a top view of the hair cutter without blades;
FIG. 2 is a sectional view of the hair cutter as taken on the line II-II of FIG. 1;
FIG. 3 is a longitudinal section of the hair cutter as taken on the line IIIIII of FIG. 1;
FIG. 4 shows a plate of the hair cutter with blades inserted.
The two plates 5 and 6 of the hair cutter 7 lie against each other with their faces 8 and 9 and are pressed against each other by a latch 10 adapted to exert a slight wedging action. The latch -10, which is integral with the plate 5, projects into an aperture 11 in plate 6. By relatively displacing the plates 5 and 6 in the direction of their dividing plane .12, the latch can be moved with slight angular displacement over a lug 13 of plate 6. The two blades 14 and 15, which are simply made like razor blades, are seated respectively with their holes 18 and 19 on the two pins 16 and 17 of plate 5. As shown in FIG. 4, the cutter blades '14 and may be made in two variants. In the case of blade .14, the longitudinal axis thereof is at the same time the connecting median line of the two holes 18. The connecting median line 20 of the holes 19 on the other hand is a parallel to the longitudinal median line 21 of blade 15 and a :few tenths of a millimeter away from it.
The face 9 of plate 6 is provided with a recess so that the faces 8 and 9 lie with only a comparatively narrow contact surface along the whole length of the blades 14 and 15, so that the two plates 5 and 6 with the inter posed blades rest with great certainty along the entire length of the blades even if there is dirt in the hair cutter.
Plate 5 has two rows of comb teeth 23 and 24 at its opposite sides and plate 6 has two rows 25 and 26. The teeth of any row are equal among themselves. The teeth of the tour rows, however, are of such length and shape that the effective cutting depth of the razor may be selected depending upon the row of teeth that is held against the skin during cutting. In the illustrated embodiment the teeth 24 are longest, the teeth 23 next in length, and the teeth 25 and 26 the shortest and substantially identical in length.
3,183,589 Patented May 18', 19
In the cutting of hair with a device of this nature the cutter is normally held at an acute angle to the area of the body on which the hair is being trimmed and moved in the direction of the hair growth. The teeth 24 are curved as indicated and have cam portions 27 at their tips. The cam portions are rounded to avoid scratching the scalp and increase the eifective length of the teeth when the cutter is held at an acute angle to the head with the cam portions engaging the skin and with the teeth 26 on the inner side of the angle. Such arrangement results in the longest cutting depth for ordinary cutting. Of course, if the cutter is held with the blade at substantially right angles to the scalp the apparatus acts as a comb with sharp teeth and the hair is only pinked. By varying the angle :from the perpendicular to increasing acuity the eftective depth of cut and the cutting action may be varied as desired.
By turning the cutter over so that the trout sides of the teeth 24 are adjacent to the scalp the effective cutting deph is decreased somewhat as the edge of the blade is then spaced a lesser distance from the scalp due to the curvature of the teeth.
The next shorter cutting depth is obtained with the teeth 23 adjacent to the skin, and the finest, as in shaving, is obtained by holding the device with the teeth 25 resting on the skin.
The range of cutting depths may be further varied; for example, in the design of the blade 15 illustrated in FIG. 4 the connecting median line 20 of the holes 19 is displaced parallel to the longitudinal median line so that upon turning the blade outwardly with its cutting edge directed toward the latch th cutting edge lies nearer the ends of the comb teeth 24. Blade 14 could be similarly constructed if desired.
Due to the construction described which permits the selection of cutting depths dependent upon the position of the cutter, and the projection of the comb teeth beyond the edge ot the blade, the device may be easily and safely used either to cut ones own hair or by another. The cutter may initially be held in position for the maximum length of cut, to out the longest hair and progressively shifted to the position affording shorter lengths of cut in order to achieve the desired contours, shaping, and finally shaving of the neck.
The plates 5 and 6 may be made of any suitable, inexpensive material, such as one of the known plastics, and the cutter is constructed in such configuration as to be conveniently held and manipulated manually, without the necessity -for an additional handle.
Obviously, the hair cutting apparatus could be designed to hold only a single blade extending :from one comb row to the other of plates 5 and 6.
What I claim is:
1. Hair cutting apparatus comprising "a pair of opposed plates, each of said plates having a row of teeth extending lfl'OIll its opposite sides, opposed teeth of the plates lying in superposed relationship, means on one plate for positioning a blade with the cutting edges thereof extending between the teeth at each of the opposed sides of the plates, means securing the other plate into face-to-face relationship with said one plate, the teeth of one plate separated from the opposed teeth of the other by an edge portion of said blade positioned therebetween, one of said plates having a row of teeth of substantially greater length than the teeth of any other rows, the opposed row of teeth of the other plate being of a length barely to extend beyond the edge of the blade, said longest row of teeth having an outer portion inclined toward the plane of the blade and having cam means on the tip portion projecting beyond the plane of said blade, whereby the cutting depth is longest with said cam means held against the skin and is slightly shorter with the inclined outer portion held against the skin, the teeth at the opposite side of one of the plates being substantially shorter than said longest row of teeth, and the opposed teeth of the other plate barely extending beyond the edge of the blade, whereby the, apparatus may be held with the substantially shorter teeth engaging the skin for a shorter cutting depth than that resulting from the previously described positions, and whereby with the shortest teeth of such side held against the skin, shaving may be accomplished.
2. Hair cutting apparatus as defined in claim 1, wherein the blade has at least tWo holes, one of said plates has pins projecting therefrom, said blade being mounted on said pins, the longitudinal median line of the blade being parallel to but spaced from the connecting median line V 4 r of the holes, whereby the protrusion of the blade between the teeth may be varied depending upon which edge is positioned outwardly. v 7
References Cited by the Examiner UNITED STATES PATENTS WILLIAM FELDMAN, Primary Examiner. EDWARD v. BENHAM, Examiner,

Claims (1)

1. HAIR CUTTING APPARATUS COMPRISING A PAIR OF OPPOSED PLATES, EACH OF SAID PLATES HAVING A ROW OF TEETH EXTENDING FROM ITS OPPOSITE SIDES, OPPOSED TEETH OF THE PLATES LYING IN SUPERPOSED RELATIONSHIP, MEANS ON ONE PLATE FOR POSITIONING A BLADE WITH THE CUTTING EDGES THEREOF EXTENDING BETWEEN THE TEETH AT EACH OF THE OPPOSED SIDES OF THE PLATES, MEANS SECURING THE OTHER PLATE INTO FACE-TO-FACE RELATIONSHIP WITH SAID ONE PLATE, THE TEETH OF ONE PLATE SEPARATED FROM THE OPPOSED TEETH OF THE OTHER BY AN EDGE PORTION OF SAID BLADE POSITIONED THEREBETWEEN, ONE OF SAID PLATES HAVING A ROW OF TEETH OF SUBSTANTIALLY GREATER LENGTH THAN THE TEETH OF ANY OTHER ROWS, THE OPPOSED ROW OF TEETH OF THE OTHER PLATE BEING OF A LENGTH BARELY TO EXTEND BEYOND THE EDGE OF THE BLADE, SAID LONGEST ROW OF TEETH HAVING AN OUTER PORTION INCLINED TOWARD THE PLANE OF THE BLADE AND HAVING CAM MEANS ON THE TIP PORTION PROJECTING BEYOND THE PLANE OF SAID BLADE, WHEREBY THE CUTTING DEPTH IS LONGEST WITH SAID CAM MEANS HELD AGAINST THE SKIN AND IS SLIGHTLY SHORTER WITH THE INCLINED OUTER PORTION HELD AGAINST THE SKIN, THE TEETH AT THE OPPOSITE SIDE OF ONE OF THE PLATES BEING SUBSTANTIALLY SHORTER THAN SAID LONGEST ROW OF TEETH, AND THE OPPOSED TEETH OF THE OTHER PLATE BARELY EXTENDING BEYOND THE EDGE OF THE PLATE, WHEREBY THE APPARATUS MAY BE HELD WITH THE SUBSTANTIALLY SHORTER TEETH ENGAGING THE SKIN FOR A SHORTER CUTTING DEPTH THAN THAT RESULTING FROM THE PREVIOUSLY DESCRIBED POSITIONS, AND WHEREBY WITH THE SHORTEST TEETH OF SUCH SIDE HELD AGAINST THE SKIN, SHAVING MAY BE ACCOMPLISHED.
US209377A 1962-07-12 1962-07-12 Blade comb hair trimmer having tooth structure permitting variable depth of cut Expired - Lifetime US3183589A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384960A (en) * 1965-10-23 1968-05-28 Solomon Nathan Hair trimmer and comb
US3488673A (en) * 1968-08-08 1970-01-06 Samuel J Popeil Haircutter and shaver
US3574936A (en) * 1968-10-10 1971-04-13 Harold V Bullerman Razor for removing objectionable hairs from the nose of the user
US3699653A (en) * 1970-05-18 1972-10-24 Oscar Miller Hair trimmer
US4441252A (en) * 1982-06-21 1984-04-10 Caves Thomas J Hair trimming devices
US4510688A (en) * 1983-07-08 1985-04-16 White Leola E Seam ripper
US4663841A (en) * 1986-02-05 1987-05-12 Custer Harry W Hair trimming tool
US5461780A (en) * 1993-07-30 1995-10-31 Morana; Frank J. Hair trimming device
US20060005394A1 (en) * 2004-07-07 2006-01-12 Newkirk James C Razor for buzz cutting head hair
US20060236546A1 (en) * 2004-10-20 2006-10-26 Robert Johnson Shaving razors and cartridges
US20110107600A1 (en) * 2009-11-09 2011-05-12 Terence Gordon Royle Cantilever Comb Guard
US20130199346A1 (en) * 2010-08-30 2013-08-08 Yiannis Marios Psimadas Protective cover for a shaving cartridge, a shaving assembly, a razor, a method of shaving with such a razor and a method of manufacturing a protective cover
US20140026422A1 (en) * 2012-07-26 2014-01-30 Tung Yan Lau Double-blade hair trimming device
US10144142B1 (en) * 2016-04-21 2018-12-04 Stubl Llc Spacer for razor blade for creating and maintaining a stubble shave appearance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951775A (en) * 1929-09-05 1934-03-20 Seilaz Leon Abraham Haircutting appliance
US2141340A (en) * 1935-08-28 1938-12-27 Eau De Colognefabriek Johann M Safety hair cutting appliance
US2514774A (en) * 1948-10-12 1950-07-11 Charles T Blanchet Hair trimmer
GB802752A (en) * 1956-03-28 1958-10-08 Wm Penn Ltd Improvements in hair trimming devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951775A (en) * 1929-09-05 1934-03-20 Seilaz Leon Abraham Haircutting appliance
US2141340A (en) * 1935-08-28 1938-12-27 Eau De Colognefabriek Johann M Safety hair cutting appliance
US2514774A (en) * 1948-10-12 1950-07-11 Charles T Blanchet Hair trimmer
GB802752A (en) * 1956-03-28 1958-10-08 Wm Penn Ltd Improvements in hair trimming devices

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384960A (en) * 1965-10-23 1968-05-28 Solomon Nathan Hair trimmer and comb
US3488673A (en) * 1968-08-08 1970-01-06 Samuel J Popeil Haircutter and shaver
US3574936A (en) * 1968-10-10 1971-04-13 Harold V Bullerman Razor for removing objectionable hairs from the nose of the user
US3699653A (en) * 1970-05-18 1972-10-24 Oscar Miller Hair trimmer
US4441252A (en) * 1982-06-21 1984-04-10 Caves Thomas J Hair trimming devices
US4510688A (en) * 1983-07-08 1985-04-16 White Leola E Seam ripper
US4663841A (en) * 1986-02-05 1987-05-12 Custer Harry W Hair trimming tool
US5461780A (en) * 1993-07-30 1995-10-31 Morana; Frank J. Hair trimming device
US20060005394A1 (en) * 2004-07-07 2006-01-12 Newkirk James C Razor for buzz cutting head hair
US7322109B2 (en) * 2004-07-07 2008-01-29 James C. Newkirk Razor for buzz cutting head hair
US20060236546A1 (en) * 2004-10-20 2006-10-26 Robert Johnson Shaving razors and cartridges
US7703361B2 (en) * 2004-10-20 2010-04-27 The Gillette Company Shaving razors and cartridges
US20110107600A1 (en) * 2009-11-09 2011-05-12 Terence Gordon Royle Cantilever Comb Guard
US8209869B2 (en) * 2009-11-09 2012-07-03 The Gillette Company Cantilever comb guard
US20130199346A1 (en) * 2010-08-30 2013-08-08 Yiannis Marios Psimadas Protective cover for a shaving cartridge, a shaving assembly, a razor, a method of shaving with such a razor and a method of manufacturing a protective cover
US9751226B2 (en) * 2010-08-30 2017-09-05 Bic Violex S.A. Protective cover for a shaving cartridge, a shaving assembly, a razor, a method of shaving with such a razor and a method of manufacturing a protective cover
US20140026422A1 (en) * 2012-07-26 2014-01-30 Tung Yan Lau Double-blade hair trimming device
US20160059428A1 (en) * 2012-07-26 2016-03-03 Tung Yan Lau Double-blade hair trimming device
US9381655B2 (en) * 2012-07-26 2016-07-05 Specialife (Zhuhai) Co., Ltd. Double-blade hair trimming device
US10144142B1 (en) * 2016-04-21 2018-12-04 Stubl Llc Spacer for razor blade for creating and maintaining a stubble shave appearance
US20190077034A1 (en) * 2016-04-21 2019-03-14 Blake Squires Spacer for razor blade for creating and maintaining a stubble shave appearance
US10780596B2 (en) * 2016-04-21 2020-09-22 Stubl Llc Spacer for razor blade for creating and maintaining a stubble shave appearance
US10836060B2 (en) 2016-04-21 2020-11-17 Blake Squires Spacer for razor
US11173621B2 (en) 2016-04-21 2021-11-16 Stubl Llc Spacer for razor

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