US3831277A - Combination scissors for both hair-cutting and hair-thinning - Google Patents

Combination scissors for both hair-cutting and hair-thinning Download PDF

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Publication number
US3831277A
US3831277A US00381564A US38156473A US3831277A US 3831277 A US3831277 A US 3831277A US 00381564 A US00381564 A US 00381564A US 38156473 A US38156473 A US 38156473A US 3831277 A US3831277 A US 3831277A
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US
United States
Prior art keywords
thinning
cutting
blade
hair
key
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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
US00381564A
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English (en)
Inventor
M Nagata
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.)
HASEGAWA HAMONO SEISAKUSHO KK
Original Assignee
HASEGAWA HAMONO SEISAKUSHO KK
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.)
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Publication date
Application filed by HASEGAWA HAMONO SEISAKUSHO KK filed Critical HASEGAWA HAMONO SEISAKUSHO KK
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Publication of US3831277A publication Critical patent/US3831277A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/06—Hand shears; Scissors characterised by the shape of the blades
    • B26B13/08—Hand shears; Scissors characterised by the shape of the blades with cutting edges wavy or toothed in the plane of the blade
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00—Hand shears; Scissors
    • B26B13/22—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument
    • B26B13/24—Hand shears; Scissors combined with auxiliary implements, e.g. with cigar cutter, with manicure instrument to aid hair cutting

Definitions

  • the present invention chiefly relates to an invention in the field of a hair-cutting scissors for home use.
  • conventional hair-cutting scissors it is known to provide one pair of scissors for both cutting and thinning the hair provided with cutting blades and thinning blades.
  • the present invention relates to a hair-cutting scissors also useable for thinning the hair, wherein, centered around a support axis are first and second thinning blades, one handle provided with a key slot linked with a shifting piece, a first cutting blade, another handle with a key guide slot open in one direction only, and a second cutting blade with a long key slot alignable with the key slot or key guide slot.
  • the first object of the present invention is to provide an improved hair-cutting scissors useable for thinning the hair wherein, by eliminating the construction drawback in the conventional type as stated above and by making the manufacturing cost low, it could be used easily at home.
  • the second object of the present invention is to offer" a hair-cutting scissors useable for thinning the hair, and which further can simultaneously perform both the cutting and the thinning of the hair.
  • the third object of the present invention is to offer a hair-cutting scissors useable for thinning the hair wherein, in case the hair-thinning and the hair-cutting are to be performed separately, a shifting operation of the scissors can be performed simply and exactly.
  • the fourth object of the present invention is to offer a hair-cutting scissors useable for thinning the hair wherein the weight of the scissors is made as light as possible in order that the fingers do not get tired.
  • the fifth object of the present invention is to offer a hair-cutting scissors useable for thinning the hair wherein, although it requires more constituent parts than a single-purpose hair-cutting scissors of a common use, the effectiveness thereof will not be affected in any way.
  • FIG. 1 is a perspective view of a disassembled hair-cutting scissors useable for a hair-thinning operation.
  • FIG. 2 is an enlarged perspective view of a shifting
  • FIG. '3 is a perspective view of an assembled condition in position for simultaneous performance of both hair-cutting and hair-thinning.
  • FIG. 4 is a front view illustrating the position for performing hair-thinning only.
  • FIG. 5 is a front view illustrating the position for simultaneously performing hair-cutting and hairthinning.
  • FIG. 6 is a front view illustrating the position for performing hair-cutting only.
  • the hair-cutting scissors of thepresent invention comprises a pair of cutting blades 1A and 1B for cutting the hair and a pair of thinning blades 2A and 2B for thinning the hair.
  • Cutting blades 1A,1B and thinning blades 2A, 2B are coaxially and rotatably mounted on both sides of a main body 12.
  • Exterior cutting blade 1A of the pair of cutting blades 1A, 1B has, as is different from wellknown cutting blades, no handle portion as illustrated in FIG. 1.
  • Cutting blade 1A is operated only at the time of a hair-cutting operation, and when it is operated, it would be engaged with a handle 3 which is part of thinning blade 2A, described below.
  • the cutting blade 1A is wholly composed of stainless steel and the rear end part spaced from a hole 5 therein, for receiving a screw 4 tobe discussed below, is shortened.
  • an elongated key slot 8 is provided at the rear end part in such a way that a key 7 of a shifting piece 6 will slide freely in slot 8.
  • the key slot 8 is, as shown in the drawing, opened at its rear end. However, slot 8 may be closed if of sufficient length to allow key 7 to slide therein a definite distance.
  • slot 8 is open because the problem of the lowering of the production cost has been taken into consideration, however, it is recommended to have the rear end block the exit from slot 8 of key 7.
  • a pin 9 is fixed at the rear end of the cutting blade 1A so as to slightly protrude into the key slot 8 in order that the rear end of the key 7 cannot go beyond the end of the keyslot 8. Therefore, when the key 7 slides backwards along the key slot 8, the key 7 cannot be completely removed from slot 8.
  • the other cutting blade 1B which matches with the foregoing cutting blade 1A is fixed to the sideof the main body 12 which is provided with a handle 10 and a finger insert ring 11.
  • the attachment means, such as rivet heads, are ground so that they are aligned with the horizontal plane of the cutting blade 1B.
  • the cutting blade 18 is wholly composed of stainless steel, has no handle portion, and is shorter than the cutting blade 1A.
  • the main body 12 which has attached theret'o'tlie cutting blade 18 and the thinning blade 2B to be described below, has approximately the same shape as well-known scissors in its overall shape.
  • the main body 12 which has attached theret'o'tlie cutting blade 18 and the thinning blade 2B to be described below, has approximately the same shape as well-known scissors in its overall shape.
  • the main body 12 is itself not for thinning and/or cutting the hair. Rather, its purpose is to support the cutting blade 1B and the thinning blade 2B. Therefore, it is only necessary to provide a part which supports the cutting blade 1B and the thinning blade 2B and to provide a handle 10, a finger insert ring 11 and a finger support 33 for an operation.
  • the height of the main body 12 it is preferable to have it extend to only above the bottom parts 16 of the comb teeth 15, and the bottoms or openings 17 therebetween, of
  • the width of the main body 12 is suitably chosen,
  • the thinned hair would be cut at a position about 5 mm from the position where it has been thinned, and the cutting is fairly well done autb'tfi extra space which exists therebetween.
  • the above-mentioned clearance of 5 mm is for Japanese straight hair, therefore, it should be made about, for instance, 8 mm for frizzled or curled hair as seen on Europeans and Americans so that the hair would be somewhat longer.
  • the main body 12 is wholly composed of light alloys such as aluminum, duralmin and the like. It is not necessary that the main body 12 be of stainless steel, consequently, light alloys or hard plastics couldbe employed for decreasing the weight of the scissors.
  • a thinning blade 28 having therein a plurality of thecomb teeth 15 is attached in a. manner similar to the attachment thereto of cutting blade 1B.
  • the width of an opening 17 between adjacent comb teeth depends upon, to some extent,-
  • the thinning blade 23 is wholly composed of stainless steel having no handle portion at its rear end, and its length approximately coincides at its rear end withthe open end of the key guide slot 13 in the main body 12.
  • Another thinning blade 2A matched with thinning blade 2B is, as shown in FIG. 1, elongated and made of stainless steel.
  • the thinning blade 2A operates with teeth 15 to out only the thinned hair. Therefore, not thinned hair passes by the openings 17 between the comb teeth 15 and the thinning blade 2B when the thinning blades 2A and 2B are engaged.
  • the height of the blade edge part of the thinning blade 2A be about the half of the height of the comb teeth 15 of the thinning blade 2B.
  • an attaching part 18 is formed at the rear end thereof so that it may be attached to a handle 3 for the thinning blade.
  • 'A screw hole 19 extends through part 18 for receipt of screw 4.
  • Part 18 also has a projection hole 21 for receipt of a projection 20 projected from on a recessed seat of the handle 3.
  • the handle 3 for the thinning blade is made of a light alloy such as aluminum, duralmin and the like in order to cut down the weight of the scissors, and its shape is nearly the same as the well-known scissors without a blade but with a finger insert ring 32 disposed at the rear end thereof.
  • handle 3 is so that thinning blade 2A is attached thereto, and the cutting blade 1A may be operated thereby.
  • handle 3 has a finger support 34 similar to the finger
  • a recessed seat 22 in conformity with the shape of the attaching part 18 in order to receive the attaching part 18 of thinning blade 2A.
  • a scre w hole 23 extends through seat 22 for receipt of the screw 4, and spaced from the screw hole 23 is the projection 20 to be fitted into the projection hole 21 of the thinning blade 2A.
  • an inwardly projecting projected part 24 Spaced rearwardly from the recessed seat 22 of the handle 3 is an inwardly projecting projected part 24 having an opening 25 opening forwardly.
  • the height of the projected part 24 is such that the cutting blade 1A and the cutting blade 18 will align horizontally when the various parts are assembled. The determination of such height will be further clarified by the following explanation.
  • opening or key slot 25 is arranged on the interior side of the projecting part 24 and opened only towards the recessed seat 22.
  • the key slot 25 receives the key 7 of the foregoing shifting piece 6 so that its size and shape substantially coincide with those of the key 7.
  • a well-known means such as washer 26 and nut 27 are arranged in order to secure the screw 4.
  • the shifting piece 6 is so designed that the cutting blades 1A and 1B and the thinning blades 2A and 2B will accurately fit each another and marine. shifting operation can be securely but easily performed.
  • a plate spring 28 to spring outwardly toward the key 7 with a notched part 29 therein.
  • the spring 28 will, when assembled, press down the cutting blade 1A against the cutting blade 1B, therefore, the cutting blade 1A will not become loose from the cutting blade 18.
  • the stepped part 29 is disposed on the key, and therefore, when the key 7 is inserted into key slot 8 of the cutting blade 1A and a side portion 30 of the key slot 8 contacts the stepped part 29, the key 7 will not slide irregularly in slot 8.
  • the attaching part 18 of the thinning blade 2A is fitted to the recessed seat 22 of the handle 3, the projection 20 is inserted into the projection hole 21, and the washer 26 is inserted into the screw 4 and the screw 4 is inserted into hole 23 of the handle 3 and into hole 19 of the thinning blade 2A.
  • the screw 4 is then inserted into hole 14 of the main body 12 on which the cutting blade 1B and the thinning blade 23 are previously fixed.
  • the key 7 of the shifting piece 6 is inserted into the key slot 8 of the cutting blade 1A from the opening thereofqThe side portion 30 of the key slot 8 is, as described before, fitted to the stepped part 29 arranged at the base of the key 7.
  • a screw 9 having a screw head extending laterally into key slot 8 is inserted into a screw hole 31 provided at the rear end of the side portion 30.
  • a hair-thinning operation may be performed by the openings 17 between comb teeth by bringing the thinning blades 2A and 28 to the hair and by operating the handle 3 and the main body 12 which is fixed to handle 10.
  • the shifting piece 6 will be, as shown in FIG. 5, moved outwardly in the direction towards the end of handle 3.
  • the key 7 of the shifting piece 6 is slidably moved backwards along the key slot 8, is withdrawn from the key guide slot 13 of the main body 12, and moved into the key slot 25 of the handle 3.
  • the cutting blade 1A will be in a linking condition with the handle 3 by means of the key 7. Under this condition, having the thinning blades 2A and 2B brought to the hair, the
  • a combination scissors useable for both haircutting and hair-thinning comprising:
  • a main body having at one end thereof an integral firsthandle
  • a first cutting blade having no handle rigidly fixed to a first side of said main body
  • a first thinning blade having no handle rigidly fixed to a second side of said main body
  • said second thinning blade unit pivotally attached to said second side of said main body with said first and second thinning blades in scissoring engagement;
  • a second cutting blade having no handle pivotally attached to said first side of said main body with said first and second cutting blades in scissoring engagement;
  • said second cutting blade having in the rear end thereof a key slot
  • said main body having at the rear end thereof a key guide slot open at the rear end thereof;
  • said second handle having at the rear end thereof a key slot open at the forward end thereof;
  • a shifting piece having a key slidably mounted in said key slot of said second cutting blade; and when said handles are in a closed scissors position, said key slot of said second cutting blade aligning with said key guide slot in said main body and said key slot in said second handle, such that said key of said shifting piece is movable from a first position into said key guide slot in said main body wherein said second cutting blade is keyed to said main body, to a second position into said key slot in said second handle wherein second cutting blade is keyed to said second handle.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
US00381564A 1972-08-11 1973-07-23 Combination scissors for both hair-cutting and hair-thinning Expired - Lifetime US3831277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1972094983U JPS5239552Y2 (Direct) 1972-08-11 1972-08-11

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US3831277A true US3831277A (en) 1974-08-27

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JP (1) JPS5239552Y2 (Direct)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195245A (en) * 1991-11-12 1993-03-23 Hoechst Celanese Corporation Safety scissors
US5297342A (en) * 1991-11-12 1994-03-29 Hoechst Celanese Corporation Safety scissors
WO1996036463A1 (en) * 1995-05-19 1996-11-21 Bettcher Industries, Inc. Blades for hand-held power operated shears
GB2315037A (en) * 1996-07-05 1998-01-21 Howard Punchard Hair cutting apparatus and method
US5918371A (en) * 1993-10-06 1999-07-06 Bettcher Industries, Inc. Blades for hand held power operated shears
US5970615A (en) * 1998-04-14 1999-10-26 Wall; Albert Combined cutting and thinning shears
US6434832B1 (en) * 2000-11-14 2002-08-20 Ashley B. Garrett Hair-cutting tool
EP1270153A4 (en) * 2000-03-29 2003-07-23 Adachi Kogyo Inc SHEARS
US6601304B2 (en) * 2001-11-01 2003-08-05 Wen-Ya Yeh Hairdressing scissors having a detachable connecting block
US6662452B2 (en) 2002-04-22 2003-12-16 Bettcher Industries, Inc. Power operated rotary knife
USD503077S1 (en) * 2003-07-30 2005-03-22 Georgia L. Welsh Hair shears
US20060207101A1 (en) * 2005-01-20 2006-09-21 Fiskars Brands, Inc. Utility cutter
US20070137049A1 (en) * 2005-12-20 2007-06-21 Daniel Venzon Barber tool
US20080086897A1 (en) * 2006-10-16 2008-04-17 Steve Sanghoo Kim Comb fixed scissors
US20080229587A1 (en) * 2007-03-21 2008-09-25 Topet Usa Inc. Grooming Scissors
CN100544905C (zh) * 2007-01-12 2009-09-30 亚尼有限公司 可重叠组合之美发剪
USD829522S1 (en) * 2016-11-29 2018-10-02 Capelito Corporation Scissors
US20230054913A1 (en) * 2019-04-30 2023-02-23 Jae Hong Park Hairdressing scissors
US20240416538A1 (en) * 2023-06-14 2024-12-19 Eversharp Pro Company Scissor assembly with quantified finger rests

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE497297A (Direct) *
DE809045C (de) * 1949-08-03 1951-07-23 Walter Lauterjung Haarschere
US2591014A (en) * 1950-09-12 1952-04-01 William D Sansom Combined thinning and shaping scissors
US2737718A (en) * 1955-01-17 1956-03-13 Hugo I Maunu Scissors
US3651573A (en) * 1970-04-22 1972-03-28 Cole National Corp Blade lock for scissors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE497297A (Direct) *
DE809045C (de) * 1949-08-03 1951-07-23 Walter Lauterjung Haarschere
US2591014A (en) * 1950-09-12 1952-04-01 William D Sansom Combined thinning and shaping scissors
US2737718A (en) * 1955-01-17 1956-03-13 Hugo I Maunu Scissors
US3651573A (en) * 1970-04-22 1972-03-28 Cole National Corp Blade lock for scissors

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195245A (en) * 1991-11-12 1993-03-23 Hoechst Celanese Corporation Safety scissors
US5297342A (en) * 1991-11-12 1994-03-29 Hoechst Celanese Corporation Safety scissors
US5918371A (en) * 1993-10-06 1999-07-06 Bettcher Industries, Inc. Blades for hand held power operated shears
US5950313A (en) * 1993-10-06 1999-09-14 Bettcher Industries, Inc. Blades for hand held power operated shears
US6367156B1 (en) 1993-10-06 2002-04-09 Bettcher Industries, Inc. Blades for hand held power operated shears
WO1996036463A1 (en) * 1995-05-19 1996-11-21 Bettcher Industries, Inc. Blades for hand-held power operated shears
GB2315037A (en) * 1996-07-05 1998-01-21 Howard Punchard Hair cutting apparatus and method
US5970615A (en) * 1998-04-14 1999-10-26 Wall; Albert Combined cutting and thinning shears
EP1270153A4 (en) * 2000-03-29 2003-07-23 Adachi Kogyo Inc SHEARS
US6434832B1 (en) * 2000-11-14 2002-08-20 Ashley B. Garrett Hair-cutting tool
US6601304B2 (en) * 2001-11-01 2003-08-05 Wen-Ya Yeh Hairdressing scissors having a detachable connecting block
US6662452B2 (en) 2002-04-22 2003-12-16 Bettcher Industries, Inc. Power operated rotary knife
USD503077S1 (en) * 2003-07-30 2005-03-22 Georgia L. Welsh Hair shears
US20060207101A1 (en) * 2005-01-20 2006-09-21 Fiskars Brands, Inc. Utility cutter
US20070137049A1 (en) * 2005-12-20 2007-06-21 Daniel Venzon Barber tool
US7849603B2 (en) * 2005-12-20 2010-12-14 Daniel Venzon Barber tool
US20080086897A1 (en) * 2006-10-16 2008-04-17 Steve Sanghoo Kim Comb fixed scissors
CN100544905C (zh) * 2007-01-12 2009-09-30 亚尼有限公司 可重叠组合之美发剪
US20080229587A1 (en) * 2007-03-21 2008-09-25 Topet Usa Inc. Grooming Scissors
USD829522S1 (en) * 2016-11-29 2018-10-02 Capelito Corporation Scissors
US20230054913A1 (en) * 2019-04-30 2023-02-23 Jae Hong Park Hairdressing scissors
US20240416538A1 (en) * 2023-06-14 2024-12-19 Eversharp Pro Company Scissor assembly with quantified finger rests

Also Published As

Publication number Publication date
JPS5239552Y2 (Direct) 1977-09-07
JPS4951480U (Direct) 1974-05-07

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