US3803712A - Hair cutters featuring rotatable blade - Google Patents

Hair cutters featuring rotatable blade Download PDF

Info

Publication number
US3803712A
US3803712A US00321342A US32134273A US3803712A US 3803712 A US3803712 A US 3803712A US 00321342 A US00321342 A US 00321342A US 32134273 A US32134273 A US 32134273A US 3803712 A US3803712 A US 3803712A
Authority
US
United States
Prior art keywords
blade
hair
mounting means
housing
tines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00321342A
Other languages
English (en)
Inventor
A Spanel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US00321342A priority Critical patent/US3803712A/en
Priority to CA186,943A priority patent/CA968546A/en
Priority to JP14456573A priority patent/JPS5615267B2/ja
Priority to NO734972A priority patent/NO138986C/no
Priority to NL7400060A priority patent/NL7400060A/xx
Priority to ES422005A priority patent/ES422005A1/es
Priority to BE139553A priority patent/BE809431A/xx
Priority to SE7400100A priority patent/SE402729B/sv
Priority to DE2400366A priority patent/DE2400366C2/de
Priority to FR7400322A priority patent/FR2213141B1/fr
Priority to BR26/74A priority patent/BR7400026D0/pt
Priority to DK5574AA priority patent/DK136459B/da
Priority to CH12074A priority patent/CH579969A5/xx
Priority to GB63474A priority patent/GB1446361A/en
Priority to IT47559/74A priority patent/IT1002606B/it
Application granted granted Critical
Publication of US3803712A publication Critical patent/US3803712A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B26B21/10—Safety razors with one or more blades arranged longitudinally to the handle
    • B26B21/12—Safety razors with one or more blades arranged longitudinally to the handle combined with combs or other means for hair trimming

Definitions

  • I HAIR CUTTERS FEATURING ROTATABLE BLADE BACKGROUND OF THE INVENTION 1.
  • This invention relates to hair cutters for home cutting which may be used with complete safety by men, women, and for children, to give complete hair cuts, or which may be used for cutting and grooming purposes.
  • Prior Art Home hair cutters which utilize razor blades as cutting blades have been popular for a number of years. Such a hair cutter is disclosed in applicants U.S. Pat. No. 2,731,717.
  • the hair cutting device disclosed therein has aligned projecting tines which are designed to provide a means to expose a cutting edge to hair, while protecting the skin from being cut and simultaneously to avoid the collection of cut hair within the device.
  • a razortype blade is supported and is adjustable to various cutting positions, thus controlling the degree of the cut. The blade is held in position to bisect the apex of the tines when in a cutting position. It may be replaced by the use of an access opening on one side of the device.
  • the former devices have been improved upon by constructing'a device with only one set of tinesand in which both edges of the blade may be selectively used.
  • a hair cutter having mechanisms combining blade rotating means and blade adjusting means so that when the blade is positioned in a predetermined position, it
  • a double-edge razor blade may be safely and effectively used in a hair cutter having a single set of projecting tines by providing means to rotate the blade while mounted in.the device.
  • a hair cutting device having one set of projecting tines which partially form an enclosure in which a double-edge blade is disposed and which may be advanced to various adjustable positions. Means are employed to permit the blade to be rotated while the blade is totally within said enclosure, there being located means such as knobs and/or levers on the outside of the enclosure to rotate the blade and then to advance the blade to selected cutting positions.
  • the unobstructed rotation of the blade can be accomplishedas well as the adjustment of the blade to various cutting positions with respect to the set of tines.
  • the blade is rotatable within the compartment formed by the housing of the device and the tine areas so that danger of accidentally cutting oneself in physically turning the blade is eliminated.
  • the blade' after the blade'is withdrawn into the compartment to an unobstructed rotating position, it can be rotated without striking the tines or other obstructions.
  • the double-edge blade may be either rotated about its long axis so *that a wanted second cutting edge of the blade can be advanced to the tine regions; or instead of being rotated about its long axis, the blade may be rotated within its own plane about its center point allowing thesecond cutting edge to be positioned so that it may then be advanced to selected cuttingpositions in the tine region.
  • the blade is mounted on a blade rotating table which is bodily adjustable along the frame to reach various cutting positions.
  • FIG. 1 is a disassembled perspective view of an embodiment of a hair cutter in which there are means to rotate the blade about both its long axis and within its ownv plane about its center point;
  • FIG. 2 is a front elevation, partly in section, of the embodiment of FIG. 1; i
  • FIG. 3 is a cross-sectional view of the hair cutter taken along lines 33 of FIG. 2;
  • FIG. 4 is a top view of the hair cutter of FIG. 2;
  • FIG. 5 is a diagramatic perspective-view of the principal pans of-a sub-assembly of the cutter of FIG. 1;
  • FIG. 6 is a perspective front view of an embodiment of a hair cutter in which the cutter blade may be rotated about its long axis;
  • FIG. 7 is a front elevational partial sectional'view of the'hair cutter embodiment of FIG..6;
  • FIG. 8 is a sectional'view of the hair cutter as shown taken along lines 88 of FIG. 7;
  • FIG. 9 is a sectional view of the hair cutter taken along the line 99 of FIG. 7 showing the rotational path of the blade;
  • FIG. 10 is a cross-section similar to FIG. 9 showing the blade in a cutting position
  • FIG. 11 is a sectional view of the hair cutter taken along lines 11-11 of FIG. 6 showing the blade adjusting mechanism
  • FIG. 12 is an exploded perspective view showing the blade adjusting mechanism of the hair cutter embodiment of FIG. 6; a
  • FIG. 13 is a perspective rear view of a hair cutter device in which the blade may be rotated within a plane about its center point;
  • FIG. 14 is a front elevational view partially in section of the hair cutter of FIG. 13;
  • FIG. 15 is a vertical section view of the hair cutter shown in FIG. 13;
  • FIG. 16 is an exploded isometric view of the hair cutter embodiment of FIG. 13, with the. blade adjusting and rotating mechanism shown disassembled from the cutter;
  • FIG. 17 is a front perspective view of a hair cutter showing a mechanism which is used for an alternative embodiment to FIG. 6 in which the blade is rotated about its long axis;
  • FIG. 18 is a sectional view taken along line 1818 of FIG. 17 showing the blade in cutting position
  • FIG. 19 is an exploded isometric view of the blade adjusting mechanism for the cutter of FIG. 17 within the mechanism shown disassembled;
  • FIG. 20 is afront perspective view of an alternative embodiment of the hair cutter of FIG. 13 in which the blade is rotated within its plane about its center point;
  • FIG. 21 is a front elevation view showing hair cutter of FIG. 20.
  • FIG. 22 is an exploded view of the mechanism shown in FIG. 20.
  • FIGS. 1-5 the invention in one form has been shown as applied to a hair cutter 10 having a housing 12, an access door or cover 14, preferably of transparent plastic material, such as methyl methacrylate, a protruding handle 18 and a row of hairdividing elements shown as angulated tines 16.
  • the tines have angularly disposed sides terminating with aligned bights or apexes and having their opposite ends molded into or otherwise secured to the sides of the lower open end of the housing 12.
  • a blade-supporting subassernbly Disposed within the housing 12 is a blade-supporting subassernbly best illustrated in FIG. 5.
  • a sub-frame 26 of U-shape construction is rotatable about the XX axis which'extends coaxially with the axis of pivot pins or stub shafts 32 and 320.
  • Between the opposing legs of frame 26 is a blade-supporting member or table 22, the blade 20 being shown by broken lines in this figure.
  • the table 22 is carried by a pin or stub shaft 22a which extends through the intermediate portion of the back of and is rotatably supported by frame 26 and has secured thereto at its outer end a manipulating knob 68 for rotation of the table and blade about the Y-.Y axis, with the blade rotating in its own plane.
  • the reversal in blade position is also achieved by rotating the knob'58 about the longitudinal, or XX axis i of the blade.
  • the blade 20 is secured to table 22 by a blade clamp 24 having rectangular openings to receive the rectangular heads of mounting members 82.
  • the blade clamp 24 has slots to receive the mounting members in bayonet-like fashion (see FIG. 12) so that the resilient sides of the clamp flex in pressing the blade 20 tightly against table 22.
  • the sub-assembly of FIG. 5, as a whole, is rotatably supported from an adjustable, main, frame or supporting member 38.
  • the stub shafts 32 and 32a nest within U-shaped recesses of projections 36 at the respective end portions of frame 38.
  • the stub shafts 32 and 32a are retained in place by retaining plates 34, each of which nests within grooves formed in the projections 36.
  • housing 12 which has elongated rails or projections 42 and 42a between which the frame is disposed, the projections 42 are received within grooves 40 formed in the opposite end portions of frame 38 to guide the frame for movement toward and away from the tines 16. That movement of the assembly is achieved by operating the adjusting mechanism 44 comprising a lever 46 secured to stub shaft 47 to rotate a crank arm 48 having pivoted to its outer end portion a slide block 50, preferably of Nylon, the sides of which are received in a rectangular slot 52 forming a guide passageway therefor.
  • the lever 46 has a detent 56 facing toward the outer face of the backwall of housing 12 to cooperate with a plurality of indexing recesses 54.
  • the slider block 50 engages the guiding passage 52 to move downwardly the assembly as a whole. Any desired position of the blade 20 relative to the bights of the tines may thus be selected.
  • the cooperation between the detent 56 and the indexing recesses 54 hold the blade-assembly in the selected position.
  • knobs 58 or 68-t0 achieve that objective.
  • the lever 46 will be moved in a counterclockwise direction to raise the assembly to its uppermost position where the upper edge of frame 38 may engage the upper wall of the housing 12. This preliminary adjustment is needed for the reason that the knob 58 has a protruding shoulder 62 of rectangular shape arranged to nest within the rectangular slot 64 of the housing. Rotation of knob 58 is prevented by engagement of the rectangular end portion 62 with the sides of the slot.
  • the upper portion of the rectangular slot 64 terminates in an enlarged, preferably cylindrical opening 65 of diameter providing for rotation therein of the rectangularend portion 62. This is achieved when the assembly is the uppermost position. At that time, the knob 58 may be rotated in either direction and through degrees. Since the knob 58 is secured to stub shaft 32a by pin 60 and that stub shaft is secured to a leg or side wall of sub-frame 26, it will be seen that the sub-assembly as a whole will be rotated about the XX axis, i.e., about an axis which closely approximates the longitudinal axis of the blade 20. This is best shown in FIG. 3 when the broken-line circle delineates the path of the cutting edges of blade 20.
  • the desired position is again selected by suitable operation of position-selecting lever 46. Since the rectangular portion has been rotated through 180 degrees, the flat sides of the rectangular end portion 62 will enter the slot 64, FIG. 1.
  • the knob 68 In the new position, the knob 68 will be rotated through 180 degrees from the position shown in FIG. 3 and will thus occupy a position adjacent the door 14. In the new position and with the main assembly including frame 38 in its uppermost position, the door 14 may now be opened and by rotating knob 68, the cutting edges of the blade may be reversed without operating the knob 58.
  • the ends of that member In order to achieve a relatively fixed position of the blade and the rotatable table or blade supporting member 22, the ends of that member are provided with elongated V-shaped notches into which extend elongated V-shaped ends of cantilever springs 28. These both fix the positions of table 22 and blade 20 and also yield to permit the rotation of the blade by the knob 68.
  • FIGS. 6l2 For a hair cutter having a single set of projecting tines in which the blade 20 is to be rotated about its central longitudinal, axis, the embodiment of FIGS. 6l2 may be preferred. As best shown in FIG. 12, it will be seen that the housing 12 includes most of the features of the embodiment of FIGS. l-5. However, the provisions for adjusting the cutting position of the blade 20 relative to the bights or apexes of the hair-separating tines 16 includes a gear rack 110 which may be formed integrally with the main adjustable frame 94 or may be suitably secured thereto as a separate element.
  • the U'shaped rotatable frame 80 in general corresponds with the frame 26 (see FIG.
  • the assembly as a whole including the frame 94 may be raised and lowered by rotation of a knob 112 keyed to a stub shaft 97 on the end of which is a gear 96 which meshes with the rack gear 110.
  • the stub shaft is journaled in the housing and the latter is provided with an opening so that the knob or adjusting wheel 112 is positioned for ready engagement with the thumb of the hand to raise and lower the assembly. Due to the locking arrangement including the guide channel 64 and the square or rectangular portion 62 of the knob 58 the frame 80 is prevented from rotation and the blade 20 has one cutting edge at all times sliding in a plane which generally bisects the apexes or bights of the tines 16.
  • the knob 112 is rotated to move the assembly including frame 94 to its uppermost position.
  • the locking arrangement 62 arrives within the enlarged opening 65 in which the guiding channel 64 terminates.
  • the knob 58 may be rotated in either direction to reverse the position of the blade and bring its other cutting edge into the position best shown in FIGS. 9, 10 and 11.
  • the parts are in position for rotation of the blade 20 about its longitudinal axis. In that position and as best shown in FIG. 9, it can rotate in a non-obstructing manner meaning that it does not contact the sides of the housing nor does it engage the tines to nick or dull the blade or otherwise to interfere with the smooth operation of the device in performing the functions just described.
  • the cover 14 is preferably of clear plastic of which there are many types on the market suitable for applications of the kind being described.
  • the blade 20 is rotated in its own plane about a central axis extending at right angles to the plane of the blade.
  • the housing may be made of considerably less overall thickness.
  • the blade 20 is clamped by the clamping member 24 to a rotatable member or table 22 which as best shown in FIG. 5 is rotatable about the YY axis coinciding with the axis of pivotal supporting screw 147 in FIGS. 15 and 16 which extends through the blade table 22 and into threaded engagement with the blade-adjustment frame 138, a threaded opening 150 being provided toreceive the threaded screw 147.
  • a pinion gear 146 is secured to the blade-adjusting frame 22 and is part of the mechanism for rotating the blade 20 in its own plane to bring either cutting edge into position to be lowered into hair cutting positions relative to the angulated tines 16.
  • the opposite ends of the table 22 have the V-notches 30 into which extend the V-shaped ends of cantilever springs 28, FIGS. 14 and 16 which are secured to the blade-adjusting frame 138.
  • the pinion gear 146 is driven by a gear segment 168 forming part of or secured to an operating lever 134 which has a hub portion 170 disposed to extend through a vertical slot 172 in the blade-adjusting frame 138.
  • This vertical slot 172 is intersected by a horizontal slot which serves the same purpose as the slot 52 in the embodiment of FIGS. l5, that is, it is disposedto receive the slider block 50 of Nylon or the like which is itself mounted on the projecting end of pin 162 carried by crank arm 48.
  • the outer end of pin 162 has an annular recess into which fits a split washer 153 to hold the block 50 in position within the horizontal slot 160.
  • the crank arm 48 is driven by the operating lever 46 by means of the square or rectangular portion 157 formed at the end of a flange 154 which is part of or securedto the lever 46. This rectangular portion 157 receives the complementary rectangular opening 156 of the lever 48 to form a good driving connection therewith.
  • the lever 46 is pivoted in the back wall of the housing 122 by reason of the cylindrical portion nesting within the opening 163.
  • the mounting screw 155 extends through the flange 154 and is received in the threaded opening of the flange of the operating lever 134.
  • This flange 170 is crimped to or otherwise secured as by a pin to screw 155 so that as the lever 134 is moved from one position to another the screw 155 is rotated but without rotation of the operating lever 46 andits associated crank arm.
  • a thumb hole 172 is provided at the lower portion of the door or closure 14.
  • FIG. 16 The above described mechanism of FIG. 16 is assembled within the relatively thin housing 122- as best shown in FIGS. 13 and 15.
  • the operating lever 46 is disposed about midway of one side wall of the housing which is provided with the indexing notches 54 which cooperate with the detent 56 of operating lever 46.
  • the lever 134 for raising and lowering the blade relative to the tines 16 moves through a path limited at the respective ends by the terminal portions of the horizontal slot 136 formed in housing 122.
  • This horizontal slot terminates at its respective ends 136a in recesses into which the lever portion may rest to be locked into either of the extreme positions which correspond with the alignment of one or the other cutting edges of the blade 20 in a plane which bisects the apex angles of the tines 16.
  • FIGS. 13-15 the blade 20 is in its uppermost position for unobstructed rotation in the plane of the blade.
  • the driving gear segment 168 drives pinion gear 146 to rotate the blade table 22 and the blade 20 in the plane of the blade to bring to reverse the edges of the blade facing the apexes or bights of the tines 16.
  • the lever 134 is firmly moved from one extreme position to the other and this assures the interchange of the cutting edges of the blade relative to the tines l6. 1
  • lever 46 is moved from its left hand position, FIG. 14, toward the right, or in a clockwise direction. When this occurs, the end of lever 48 moves downwardly carrying with it the slider block 50 and thus lowers the frame 138.
  • This 1 blade-supporting, or frame member 138 is relatively thin and as shown can nest within recesses or grooves 144 and 145 formed as a part of the end walls of the housing 122.
  • FIGS. 17l9 Many of the features of the embodiment of FIGS. 1-12 have been included in the modification of FIGS. 17l9. More particularly, the rack gear 110, driving pinion 96 and driving wheel 112 have been retained together with the housing 12 and its associated handle 18. Also, the blade 20 together with the clamping element 24 and the blade table or U-shaped supporting member 80 are substantially the same. So are the angularly disposed tines 16 depending from the housing. The principal differences arise in the provision of the separable gears 222 and 242 which function to reverse the cutting edges of blade 20 when the blade supporting table is in a non-obstructing position free of side walls and tines. Thus as best seen in FIG.
  • a stub shaft 220 extends outwardly beyond the left bearing block 36 to receive at an outer end a segmental gear 222, best seen in FIG. 18.
  • This gear includes as an integral part thereof a rectangular or square hub-section 224 adapted to slideably engage the longitudinal slot 64 in the end wall of the housing 12. As in the modification of FIGS. 6-12 this rectangular portion224 is free to rotate within the larger opening 65 for that is the position in which unobstructed rotation of the blade 20 may occur along the XX axis as in FIG. 1.
  • the segmental gear 222 is moved from its lowermost position, FIG.
  • the driving gear 242 which is also a segmental gear.
  • This gear is secured to and carried by a stub shaft 241 which extends through an opening 240 of the housing and is arranged to receive an operating knob 246. It is pinned to the shaft of gear 242 by the pin 243.
  • the segmental gears permit rotation through degrees only and this assures reversal. of the cutting edge of the blade at any time that may be desired.
  • the knob 244 has a projection 246 arranged to engage indentations 248 formed in the outer face of the end of the housing 12, the spring frictional action present serving to hold the assembly in either of the two positions.
  • the blade 20 is rotated in its own plane about its central axis but by a somewhat different means than in the preceding modifications.
  • the operating lever 290 with its thumb-engaging projection 292 and detent 293 is keyed to a stub shaft of the gear 288.
  • the stub shaft is journaled in an opening through the back wall of the housing and thus remains stationary when the blade-carrying main frame 258 is moved toward and away from the tines 16.
  • segmental gear 288 meshes with segmental gear 286 which it will be observed is threadedly or otherwisesecured to the table 22 carry ing the blade 20.
  • the springs 28 prevent rotation of the blade until the spring force is overcome through operation of the lever 290.
  • a carriage 272 having a threaded portion can be moved to the right or left by rotating the threaded member 274 as by the knob or wheel 276 having a rectangular opening fitting onto a rectangular or squared end of the shaft.
  • the fastening nut secures the assembly together.
  • the screw By rotating the knob 276 in one direction or the other, the screw forcibly moves the carriage 272 to the right or the left thus moving a dependent leg 280 and a pin 282 within the inclined slot 284.
  • the pin 282 may include material having a low coefficient of friction to minimize resistance of movement of frame 258 to a desired position.
  • the lever 290 is moved from its A- position of FIG. 20 to its B-position where these letters identify indexing recesses formed in the back of the housing. They function similarly to the indexing recesses previously described (recesses 54, FIG. 1), but in this modification as part of the restraining means for the blade-table 22.
  • the blade adjusting rack assembly 94 of FIG. I2 may conveniently be made of plastic as could the adjusting wheel and pinion, the blade rotating knob, and the blade rotating table of that embodiment.
  • the blade rotating table could however as easily be made, for example, of diecast alloy.
  • these may be readily made of a transparent plastic material.
  • the blade adjusting frame 138 of FIG. 16 either plastic or metal can be used.
  • the leaf spring blade table locating latches 28 may be made of spring steel along with the blade clamps 24 used in the various embodiments.
  • the blade rotating lever 134 may be made of plastic or metal and the blade adjusting lever 46 may also be made of plastic or metal while the blade adjusting crank 48 may be made of plastic or metal.
  • the slide block 50 may best be constructed from material having a low coefficient of friction such as Nylon.
  • the particular configurations of the hair cutting device container and compartment and the various types of mechanisms for vertically adjusting the blade as well as rotating it are not to be considered critical so long as there is a means whereby the blade may be rotated and then shifted into various cutting positions where the razor blade is located midway of the tines.
  • the shape of the tines although shown throughout as angulated members forming aligned apices at their most distant portions from the container body, are not to be considered limited to this type of configuration.
  • a hair cutter having a blade supporting means for a double-edged blade, one cutting edge of which co operates with a plurality of elongated hair dividing elements to cut the subdivided hair as said blade and said elements are moved through the hair, the improvement which comprises:
  • a blade adjusting frame slidably mounted within said housing and supporting said mounting means, said adjusting frame having a position within said housing in which said mounting means for the blade may rotate said blade through an unobstructed space in avoidance of said housing and said divid ing elements, and
  • a mechanical driving connection comprising a driving member and a driven member, said driven member being a part of or connected to said mounting means and said driving member engaging said driven member, and
  • a hair cutter having a housing with an open side
  • a blade-adjustment frame slidably mounted within said housing for movement toward and away from said angulated tines
  • said housing having a size within which said mounting means may be unobstructedly rotated to bring either cutting edge of the blade in direction facing said angulated tines,
  • pivot means are supported by said frame for rotation of said mounting means and said blade within the plane of said blade and about a central axis normal to the plane of said blade.
  • said hair cutter of claim 7 in which said bladeadjustment frame is provided with an elongated driven means, and a driving member engaging said driven means and operable from the outside of said casing to adjust said blade to selected hair cutting positions lengthwise of said angulated tines.
  • said driven element is a rack gear and in which said driving member is a pinion gear engaging said rack gear and having a stub shaft to which there is connected manual means for rotating said pinion gear to move said bladeadjustment frame toward and away from said tines.
  • said driven element is a channel in which there is disposed in said channel a driving means comprising a member in sliding engagement therein, and a crank arm with a handle external of the housing for moving said bladeadjustment frame toward and away from said angulated tines.
  • said driven element is a channel extending angularly across said blade-adjustment frame and in which a driving element positioned within said channel
  • said means for moving said driving element in said rectilinear path comprises a carriage threadedly carried by an adjusting screw, and a thumbwheel secured to said adjusting screw and positioned in a thumb-engaging position at an end portion of the housing.
  • said means for rotating said mounting means comprises a driven member and a driving member, said driven member being secured to said mounting means and said driving member. being supported from said housing for separation of said driving and driven members upon movement of said blade-adjustment frame from its position for unobstructed rotation of said mounting means.
  • said restraining means comprises resilient indexing means, the restraint from which can be overcome byoperation of said driving member when in engagement with said driven member,
  • said restraining means comprises a slot extending parallel to the movement of said slidable adjustment frame, and said means for rotating said mounting means having a shape engaging the walls of said slot to prevent said rotation, said slot terminating in an enlarged opening within which said shape has clearance for rotation of said mounting means.
  • said mounting means is of U-shape and has extending therefrom mounting elements having grooves to receive the blade and hold it in fixed position, said leg portions of U- shape mounting means having secured thereto stub shafts whose axes coincide with the longitudinal axis of said blade, said blade-adjustment frame having bearing blocks for receiving said stub shafts to provide said rotatable support for said U-shape mounting means.
  • said restraining means comprises a rectangular projection and a slot therefor one being rotatable with said mounting means and the other stationary, the one engaging the other as said blade is moved to selected hair cutting positions and becoming disengaged in that position in which the blade may be rotated.
  • a hair cutter having a housing with an open side
  • a blade-adjustment frame slidably mounted within said housing for movement toward and away from said angulated tines
  • a hair cutter having a blade supporting means for a double-edged blade, one cutting edge of which cooperates with a plurality of elongated hair dividing elements to cut the subdivided hair as said blade and said elements are moved through the hair, the improvement which comprises:
  • mounting means for rotatably supporting said bladesupporting means for rotation of said blade to bring one or the other of its cutting edges into a hair cutting position comprising a first pivotal support for said mounting means for rotation of said blade about its longitudinal symmetrical axis, and a second pivotal means for rotation of said blade in its own plane about a central axis extending in a direction normal to the center of the blade, and

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Confectionery (AREA)
  • Surgical Instruments (AREA)
US00321342A 1973-01-05 1973-01-05 Hair cutters featuring rotatable blade Expired - Lifetime US3803712A (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
US00321342A US3803712A (en) 1973-01-05 1973-01-05 Hair cutters featuring rotatable blade
CA186,943A CA968546A (en) 1973-01-05 1973-11-29 Hair cutters featuring rotatable blade
JP14456573A JPS5615267B2 (sv) 1973-01-05 1973-12-27
NO734972A NO138986C (no) 1973-01-05 1973-12-28 Haarskjaereanordning.
NL7400060A NL7400060A (sv) 1973-01-05 1974-01-03
FR7400322A FR2213141B1 (sv) 1973-01-05 1974-01-04
SE7400100A SE402729B (sv) 1973-01-05 1974-01-04 Harklippningsanordning
DE2400366A DE2400366C2 (de) 1973-01-05 1974-01-04 Haarschneidegerät mit einem Klingenhalter für eine zweischneidige Klinge
ES422005A ES422005A1 (es) 1973-01-05 1974-01-04 Un aparato para cortar el pelo.
BR26/74A BR7400026D0 (pt) 1973-01-05 1974-01-04 Cortador de cabelo aperfeicoado
DK5574AA DK136459B (da) 1973-01-05 1974-01-04 Hårklipper med et sideværts forskydeligt tveægget blad, fortrinsvis et barberblad.
BE139553A BE809431A (fr) 1973-01-05 1974-01-04 Dispositif pour la coupe des cheveux a lame pouvant tourner
GB63474A GB1446361A (en) 1973-01-05 1974-01-07 Hair cutters
IT47559/74A IT1002606B (it) 1973-01-05 1974-01-07 Dispositivo per il taglio di capel li per uso domestico
CH12074A CH579969A5 (sv) 1973-01-05 1974-01-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00321342A US3803712A (en) 1973-01-05 1973-01-05 Hair cutters featuring rotatable blade

Publications (1)

Publication Number Publication Date
US3803712A true US3803712A (en) 1974-04-16

Family

ID=23250210

Family Applications (1)

Application Number Title Priority Date Filing Date
US00321342A Expired - Lifetime US3803712A (en) 1973-01-05 1973-01-05 Hair cutters featuring rotatable blade

Country Status (15)

Country Link
US (1) US3803712A (sv)
JP (1) JPS5615267B2 (sv)
BE (1) BE809431A (sv)
BR (1) BR7400026D0 (sv)
CA (1) CA968546A (sv)
CH (1) CH579969A5 (sv)
DE (1) DE2400366C2 (sv)
DK (1) DK136459B (sv)
ES (1) ES422005A1 (sv)
FR (1) FR2213141B1 (sv)
GB (1) GB1446361A (sv)
IT (1) IT1002606B (sv)
NL (1) NL7400060A (sv)
NO (1) NO138986C (sv)
SE (1) SE402729B (sv)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955277A (en) * 1973-09-20 1976-05-11 The Gillette Company Adjustable razor blade unit
US4058891A (en) * 1974-07-01 1977-11-22 Spanel Abram Nathaniel Hair cutters
US4362175A (en) * 1977-08-31 1982-12-07 Garvey James P Dandruff remover combs
US4438563A (en) * 1981-03-03 1984-03-27 Turner David D Hand-held cutting tool
WO1985004358A1 (en) * 1984-03-27 1985-10-10 David Dekalb Turner Hand-held cutting tool
US20060070244A1 (en) * 2004-05-12 2006-04-06 Mel Lopez Disposable straight blade razor for consumers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415332A (en) * 1977-07-07 1979-02-05 Aoki Construction Method and device for building structure on slope
GB2117302B (en) * 1982-03-11 1985-11-06 James Garvey Hair cutting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578896A (en) * 1950-08-11 1951-12-18 George W Moore Combined scraper and cutter
US2661529A (en) * 1952-11-05 1953-12-08 Francesco D Infantino Hair cutter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR26905E (fr) * 1922-09-29 1924-03-20 Peigne-tondeuse
DE875773C (de) * 1949-07-23 1953-05-07 Abraham Nathaniel Spanel Haarschneideapparat
US2731717A (en) * 1950-07-12 1956-01-24 Cutter Corp Hair cutters
US3619900A (en) * 1969-02-13 1971-11-16 Hirotsugu Matsura Rotary spare blade safety razor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578896A (en) * 1950-08-11 1951-12-18 George W Moore Combined scraper and cutter
US2661529A (en) * 1952-11-05 1953-12-08 Francesco D Infantino Hair cutter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955277A (en) * 1973-09-20 1976-05-11 The Gillette Company Adjustable razor blade unit
US4058891A (en) * 1974-07-01 1977-11-22 Spanel Abram Nathaniel Hair cutters
US4362175A (en) * 1977-08-31 1982-12-07 Garvey James P Dandruff remover combs
US4438563A (en) * 1981-03-03 1984-03-27 Turner David D Hand-held cutting tool
WO1985004358A1 (en) * 1984-03-27 1985-10-10 David Dekalb Turner Hand-held cutting tool
US20060070244A1 (en) * 2004-05-12 2006-04-06 Mel Lopez Disposable straight blade razor for consumers

Also Published As

Publication number Publication date
BE809431A (fr) 1974-07-04
NL7400060A (sv) 1974-07-09
CH579969A5 (sv) 1976-09-30
SE402729B (sv) 1978-07-17
CA968546A (en) 1975-06-03
ES422005A1 (es) 1976-04-01
NO138986B (no) 1978-09-11
BR7400026D0 (pt) 1974-08-15
FR2213141B1 (sv) 1978-07-07
DK136459C (sv) 1978-03-13
GB1446361A (en) 1976-08-18
JPS49102456A (sv) 1974-09-27
FR2213141A1 (sv) 1974-08-02
DE2400366A1 (de) 1974-07-18
IT1002606B (it) 1976-05-20
JPS5615267B2 (sv) 1981-04-09
NO138986C (no) 1978-12-20
DE2400366C2 (de) 1982-05-13
DK136459B (da) 1977-10-17

Similar Documents

Publication Publication Date Title
US4399989A (en) Safe grip slicer for bagels, rolls, muffins and the like
US4715120A (en) Razors, and shaving units for razors
US4151645A (en) Dry-shaving apparatus with hair-pulling lead cutters
US3646672A (en) Adjustable folding razor
US6578269B2 (en) Movable comb advancing system for hair trimmers
US3803712A (en) Hair cutters featuring rotatable blade
JPH03193084A (ja) ヘアカッター
US4614032A (en) Hair-cutting apparatus and razor
US5361666A (en) Bagel slicer
US3613233A (en) Haircutting device
US4426781A (en) Cutter for making paper discs
US20170361477A1 (en) Beard trimmer having one or more rotary heads
US3855695A (en) Hair cutters
US3945115A (en) Skin engaging means for an electric dry shaver
US3557448A (en) Retractile adjustable safety razor
JPH0211270B2 (sv)
US3947960A (en) Wand hair cutter
US2576618A (en) Handle type hair trimmer
US3137070A (en) Envelope opening device
JPS588867B2 (ja) 二枚刃安全かみそり
US4779343A (en) Cutting shears
US1236926A (en) Hair-trimmer.
US4438563A (en) Hand-held cutting tool
US1974569A (en) Cutting device
US2700213A (en) Hair trimmer comb and blade-holding tension clip combination