EP1640123A1 - Notched single-edge thinning scissors - Google Patents

Notched single-edge thinning scissors Download PDF

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Publication number
EP1640123A1
EP1640123A1 EP04360086A EP04360086A EP1640123A1 EP 1640123 A1 EP1640123 A1 EP 1640123A1 EP 04360086 A EP04360086 A EP 04360086A EP 04360086 A EP04360086 A EP 04360086A EP 1640123 A1 EP1640123 A1 EP 1640123A1
Authority
EP
European Patent Office
Prior art keywords
blade
scissors
scissors member
cutting
notched
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.)
Granted
Application number
EP04360086A
Other languages
German (de)
French (fr)
Other versions
EP1640123B1 (en
Inventor
Wen-Ya Yeh
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.)
Yeh Wen-Ya
Original Assignee
Yeh Wen-Ya
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 Yeh Wen-Ya filed Critical Yeh Wen-Ya
Priority to PT04360086T priority Critical patent/PT1640123E/en
Priority to AT04360086T priority patent/ATE500931T1/en
Priority to ES04360086T priority patent/ES2362728T3/en
Priority to EP04360086A priority patent/EP1640123B1/en
Priority to DE602004031732T priority patent/DE602004031732D1/en
Publication of EP1640123A1 publication Critical patent/EP1640123A1/en
Application granted granted Critical
Publication of EP1640123B1 publication Critical patent/EP1640123B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26B13/22—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
    • 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

Definitions

  • the present invention relates to scissors and more particularly, to a notched single-edge thinning scissors that has chamfered edges formed in the notched blades around the notches for supporting the hair not to be cut without causing damage to the hair not to be cut.
  • a conventional notched single-edge thinning scissors A (see FIGS. 1 and 2) is comprised of a first scissors member 100 and a second scissors member 200 pivotally connected together with a pivot 300.
  • the first scissors member 100 has a handle (ring handle) 101 at one end and a blade 102 at the other end.
  • the blade 102 has a contact side 106, a distal side 107, and a notched edge formed of teeth 103 and notches 104.
  • the width of the notches 104 is designed subject to the amount of the hair not to be cut during trimming (the design shown in FIG. 1 has relatively wider notches; the design shown in FIG. 2 has relatively narrow notched).
  • Each tooth 103 has a cutting edge 105.
  • the second scissors member 200 has a handle 201 at one end and a blade 202 at the other end.
  • the blade 202 is a cutting blade having a cutting side 203 and a distal side 204 opposite to the cutting side 203.
  • the cutting side 203 of the blade 202 of the second scissors member 200 is moved over the cutting edges 105 of the teeth 103 and the contact side 106 of the blade 102 of the first scissors member 100 to cut the hair.
  • This design of notched single-edge thinning scissors is still not satisfactory in function. Because the intersected areas between the contact side 106 and distal side 107 of the blade 102 and the left and right sidewalls and bottom walls of the notches 104 are aligned in line X (see FIGS.
  • the hair not to be cut may be jammed in line X, i.e., in the intersected areas between the contact side 106 and distal side 107 of the blade 102 and the left and right sidewalls and bottom walls of the notches 104 during trimming, thereby causing damage to the hair not to be cut.
  • the present invention has been accomplished under the circumstances in view.
  • the notched single-edge thinning scissors comprises a first scissors member and a second scissors member pivotally connected together with a pivot.
  • the first scissors member and the second scissors member each have a handle at one end thereof and a blade at an opposite end thereof.
  • the blade of the first scissors member has a contact side, a distal side opposite to the contact side, and a notched edge formed of teeth and notches. Each tooth has a cutting edge.
  • the blade of the second scissors member has a cutting side and a distal side opposite to the cutting side.
  • the notches of the blade of the first scissors member define with the blade of the second scissors member a hair receiving space.
  • Each notch has a left sidewall, a right sidewall, and a bottom wall.
  • the contact side and distal side of the blade of the first scissors member each have first chamfered edges, second chamfered edges and third chamfered edges respectively connected to the left sidewall, right sidewall and bottom wall of each notch.
  • the blade of the first scissors member has a plurality of chamfered edges formed in the intersected areas between the cutting edges and the left and right sidewalls of each notch.
  • a notched single-edge thinning scissors B in accordance with the present invention is shown comprised of a first scissors member 10 and a second scissors member 20 pivotally connected together with a pivot 30.
  • the first scissors member 10 has a handle (ring handle) 11 at one end and a blade 12 at the other end.
  • the blade 12 has a notched blade having a contact side 15, a distal side 16 opposite to the contact side 15, and a notched edge formed of teeth 13 and notches 14.
  • the teeth 13 each have a cutting edge 17.
  • the second scissors member 20 has a handle (ring handle) 21 at one end and a blade 22 at the other end.
  • the blade 22 is a cutting blade having a cutting side 23 and a distal side 24 opposite to the cutting side 23.
  • a hair receiving space C is defined between the notches 14 of the blade 12 of the first scissors member 10 and the blade 22 of the second scissors member 20 (see FIGS. 6 and 11).
  • Each notch 14 has a left sidewall 141, a right sidewall 142, and a bottom wall 143.
  • the contact side 15 of the blade 12 has a first chamfered edges 151, second chamfered edges 152 and third chamfered edges 153 respectively connected to the left sidewall 141, right sidewall 142 and bottom wall 143 of each of the notches 14 (see FIG. 7).
  • the distal side 16 of the blade 12 has a first chamfered edges 161, second chamfered edges 162 and third chamfered edges 163 respectively connected to the left sidewall 141, right sidewall 142 and bottom wall 143 of each of the notches 14 (see FIG. 8).
  • first chamfered edges 161, second chamfered edges 162 and third chamfered edges 163 respectively connected to the left sidewall 141, right sidewall 142 and bottom wall 143 of each of the notches 14 (see FIG. 8).
  • the blades 12, 22 of the two scissors members 10, 20 are moved relative to each other in proximity, and the cutting side 23 of the blade 22 of the second scissors member 20 is continuously maintained in contact with the cutting edges 17 and the contact side 15, and therefore the cutting side 23 and the cutting edges 17 of the blade 12 of the first scissors member 10 work to cut the hair.
  • the cut-off hair H falls along the cutting edges 17 (see FIG. 9).
  • the notches 14 and the hair receiving space C receive the hair not to be cut H1.
  • the hair not to be cut H1 being received in the notches 14 and the hair receiving space C is maintained in "sliding" contact with the chamfered edges 151 ⁇ 153 and the chamfered edges 161 ⁇ 163, preventing damage (see FIGS. 9 and 10).
  • chamfered edges 171 are formed in all intersected areas between the cutting edges 17 and the left and right sidewalls 141, 142 of the notches 14 (see FIG. 12) or in the bottom side of each intersected area between the cutting edges 17 and the left and right sidewalls 141, 142 of the notches 14 (see FIG. 13) for supporting the hair not to be cut H1 during trimming.
  • the hair not to be cut H1 being received in the notches 14 and the hair receiving space C is maintained in "sliding" contact with the chamfered edges 151 ⁇ 153, 161 ⁇ 163, 171, and therefore the hair not to be cut H1 can smoothly be moved away from the thinning scissors B without damage during trimming.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
  • Magnetic Heads (AREA)
  • Inorganic Insulating Materials (AREA)
  • Massaging Devices (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

A notched single-edge thinning scissors (B) is disclosed to have chamfered edges (151,152,153) formed in the notched blade (12) between the hair contact side (15) of the notched blade and the left sidewall (141), right sidewall (142) and bottom wall (143) of each notch (14), and between the cutting edges (17) of the teeth (13) of the notched blade and the left and right sidewalls (141,142) of each notch (14) for supporting the hair not to be cut during trimming.

Description

    BACKGROUND OF THE INVENTION 1. Field of the Invention
  • The present invention relates to scissors and more particularly, to a notched single-edge thinning scissors that has chamfered edges formed in the notched blades around the notches for supporting the hair not to be cut without causing damage to the hair not to be cut.
    • 2. Description of the Related Art
  • A conventional notched single-edge thinning scissors A (see FIGS. 1 and 2) is comprised of a first scissors member 100 and a second scissors member 200 pivotally connected together with a pivot 300. The first scissors member 100 has a handle (ring handle) 101 at one end and a blade 102 at the other end. The blade 102 has a contact side 106, a distal side 107, and a notched edge formed of teeth 103 and notches 104. The width of the notches 104 is designed subject to the amount of the hair not to be cut during trimming (the design shown in FIG. 1 has relatively wider notches; the design shown in FIG. 2 has relatively narrow notched). Each tooth 103 has a cutting edge 105. The second scissors member 200 has a handle 201 at one end and a blade 202 at the other end. The blade 202 is a cutting blade having a cutting side 203 and a distal side 204 opposite to the cutting side 203. When closing the thinning scissors A, the cutting side 203 of the blade 202 of the second scissors member 200 is moved over the cutting edges 105 of the teeth 103 and the contact side 106 of the blade 102 of the first scissors member 100 to cut the hair. This design of notched single-edge thinning scissors is still not satisfactory in function. Because the intersected areas between the contact side 106 and distal side 107 of the blade 102 and the left and right sidewalls and bottom walls of the notches 104 are aligned in line X (see FIGS. 3 and 4), the hair not to be cut may be jammed in line X, i.e., in the intersected areas between the contact side 106 and distal side 107 of the blade 102 and the left and right sidewalls and bottom walls of the notches 104 during trimming, thereby causing damage to the hair not to be cut.
    • SUMMARY OF THE INVENTION
  • The present invention has been accomplished under the circumstances in view.
  • It is the main object of the present invention to provide a notched single-edge thinning scissors that eliminates the drawback of the aforesaid prior art design.
  • To achieve this and other objects of the present invention, the notched single-edge thinning scissors comprises a first scissors member and a second scissors member pivotally connected together with a pivot. The first scissors member and the second scissors member each have a handle at one end thereof and a blade at an opposite end thereof. The blade of the first scissors member has a contact side, a distal side opposite to the contact side, and a notched edge formed of teeth and notches. Each tooth has a cutting edge. The blade of the second scissors member has a cutting side and a distal side opposite to the cutting side. The notches of the blade of the first scissors member define with the blade of the second scissors member a hair receiving space. Each notch has a left sidewall, a right sidewall, and a bottom wall. The contact side and distal side of the blade of the first scissors member each have first chamfered edges, second chamfered edges and third chamfered edges respectively connected to the left sidewall, right sidewall and bottom wall of each notch. The blade of the first scissors member has a plurality of chamfered edges formed in the intersected areas between the cutting edges and the left and right sidewalls of each notch.
    • BRIEF DESCRIPTION OF THE DRAWINGS
    • FIG. 1 is a plain view of a notched single-edge thinning scissors according to the prior art.
    • FIG. 2 is a plain view of another notched single-edge thinning scissors according to the prior art.
    • FIG. 3 is a sectional view taken along line R-R of FIG. 1.
    • FIG. 4 is a sectional view taken along line P-P of FIG. 1.
    • FIG. 5 is a perspective view of a notched single-edge thinning scissors according to the present invention.
    • FIG. 6 is a perspective view in an enlarged scale a part of the present invention.
    • FIG. 7 is a sectional view taken along line F-F of FIG. 11.
    • FIG. 8 is a sectional view taken along line E-E of FIG. 6.
    • FIG. 9 is similar to FIG. 7 but showing the blades of the two scissors members moved relative to each other.
    • FIG. 10 is similar to FIG. 8 but showing the blades of the two scissors members moved relative to each other.
    • FIG. 11 corresponds to FIG. 6 but viewed from another side.
    • FIG. 12 is a perspective view in an enlarged scale of a part of the present invention showing chamfered edges formed in the intersected areas between the cutting edges and the left and right sidewalls (I).
    • FIG. 13 is a perspective view in an enlarged scale of a part of the present invention showing chamfered edges formed in the intersected areas between the cutting edges and the left and right sidewalls (II).
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to FIGS. 5 and 6, a notched single-edge thinning scissors B in accordance with the present invention is shown comprised of a first scissors member 10 and a second scissors member 20 pivotally connected together with a pivot 30. The first scissors member 10 has a handle (ring handle) 11 at one end and a blade 12 at the other end. The blade 12 has a notched blade having a contact side 15, a distal side 16 opposite to the contact side 15, and a notched edge formed of teeth 13 and notches 14. The teeth 13 each have a cutting edge 17. The second scissors member 20 has a handle (ring handle) 21 at one end and a blade 22 at the other end. The blade 22 is a cutting blade having a cutting side 23 and a distal side 24 opposite to the cutting side 23. When closing the thinning scissors B, a hair receiving space C is defined between the notches 14 of the blade 12 of the first scissors member 10 and the blade 22 of the second scissors member 20 (see FIGS. 6 and 11). Each notch 14 has a left sidewall 141, a right sidewall 142, and a bottom wall 143. The contact side 15 of the blade 12 has a first chamfered edges 151, second chamfered edges 152 and third chamfered edges 153 respectively connected to the left sidewall 141, right sidewall 142 and bottom wall 143 of each of the notches 14 (see FIG. 7). The distal side 16 of the blade 12 has a first chamfered edges 161, second chamfered edges 162 and third chamfered edges 163 respectively connected to the left sidewall 141, right sidewall 142 and bottom wall 143 of each of the notches 14 (see FIG. 8). When closing the thinning scissors B, the cutting side 23 of the blade 22 of the second scissors member 20 is moved over the cutting edges 17 of the teeth 13 and the contact side 15 of the blade 12 of the first scissors member 10 to cut the hair (see FIG. 6).
  • When trimming the hair, the blades 12, 22 of the two scissors members 10, 20 are moved relative to each other in proximity, and the cutting side 23 of the blade 22 of the second scissors member 20 is continuously maintained in contact with the cutting edges 17 and the contact side 15, and therefore the cutting side 23 and the cutting edges 17 of the blade 12 of the first scissors member 10 work to cut the hair. The cut-off hair H falls along the cutting edges 17 (see FIG. 9). At this time, the notches 14 and the hair receiving space C receive the hair not to be cut H1. During trimming, the hair not to be cut H1 being received in the notches 14 and the hair receiving space C is maintained in "sliding" contact with the chamfered edges 151~153 and the chamfered edges 161∼163, preventing damage (see FIGS. 9 and 10).
  • Referring to FIGS. 12 and 13, chamfered edges 171 are formed in all intersected areas between the cutting edges 17 and the left and right sidewalls 141, 142 of the notches 14 (see FIG. 12) or in the bottom side of each intersected area between the cutting edges 17 and the left and right sidewalls 141, 142 of the notches 14 (see FIG. 13) for supporting the hair not to be cut H1 during trimming.
  • As indicated above, by means of the chamfered edges 151~153, 161~163, 171, the hair not to be cut H1 being received in the notches 14 and the hair receiving space C is maintained in "sliding" contact with the chamfered edges 151~153, 161~163, 171, and therefore the hair not to be cut H1 can smoothly be moved away from the thinning scissors B without damage during trimming.
  • Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention.

Claims (3)

  1. A notched single-edge thinning scissors comprising a first scissors member and a second scissors member pivotally connected together with a pivot, said first scissors member and said second scissors member each having a handle at one end thereof and a blade at an opposite end thereof, the blade of said first scissors member having a contact side, a distal side opposite to said contact side, and a notched edge formed of teeth and notches, said teeth each having a cutting edge, the blade of said second scissors member having a cutting side and a distal side opposite to said cutting side, said notches of the blade of said first scissors member defining with the blade of said second scissors member a hair receiving space, each said notch having a left sidewall, a right sidewall, and a bottom wall;
    wherein the contact side and distal side of the blade of said first scissors member each have first chamfered edges, second chamfered edges and third chamfered edges respectively connected to the left sidewall, right sidewall and bottom wall of each said notch.
  2. The notched single-edge thinning scissors as claimed in claim 1, wherein the blade of said first scissors member has a plurality of chamfered edges formed in the intersected areas between said cutting edges and the left and right sidewalls of each said notch.
  3. The notched single-edge thinning scissors as claimed in claim 1, wherein the blade of said first scissors member has a plurality of chamfered edges formed in a bottom side of each intersected area between said cutting edges and the left and right sidewalls of each said notch.
EP04360086A 2004-09-22 2004-09-22 Notched single-edge thinning scissors Not-in-force EP1640123B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PT04360086T PT1640123E (en) 2004-09-22 2004-09-22 Notched single-edge thinning scissors
AT04360086T ATE500931T1 (en) 2004-09-22 2004-09-22 FINISHING SCISSORS
ES04360086T ES2362728T3 (en) 2004-09-22 2004-09-22 SCISSORS TO TRAIN A SINGLE EDGE.
EP04360086A EP1640123B1 (en) 2004-09-22 2004-09-22 Notched single-edge thinning scissors
DE602004031732T DE602004031732D1 (en) 2004-09-22 2004-09-22 thinning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04360086A EP1640123B1 (en) 2004-09-22 2004-09-22 Notched single-edge thinning scissors

Publications (2)

Publication Number Publication Date
EP1640123A1 true EP1640123A1 (en) 2006-03-29
EP1640123B1 EP1640123B1 (en) 2011-03-09

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ID=34931782

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04360086A Not-in-force EP1640123B1 (en) 2004-09-22 2004-09-22 Notched single-edge thinning scissors

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EP (1) EP1640123B1 (en)
AT (1) ATE500931T1 (en)
DE (1) DE602004031732D1 (en)
ES (1) ES2362728T3 (en)
PT (1) PT1640123E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7159321B2 (en) * 2004-09-01 2007-01-09 Wen-Ya Yeh Notched single-edge thinning scissors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170064A (en) * 1977-05-13 1979-10-09 Spengler & Meurer Hair-dressing scissors
DE8513958U1 (en) * 1985-05-10 1985-07-04 Fritz Bracht GmbH & Co KG, 5650 Solingen Thinning scissors
DE3603036A1 (en) * 1985-02-13 1986-08-14 Hirakawa, Hachiro, Sakai, Osaka Thinning scissors for hairdressers
EP1153712A1 (en) * 1999-01-22 2001-11-14 Adachi Kogyo, Inc. Non-slip scissors
JP2003290572A (en) * 2002-04-02 2003-10-14 Adachi Kogyo:Kk Combing scissors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1256302A3 (en) * 2001-05-08 2003-09-03 Matthias Pfister Cutting device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4170064A (en) * 1977-05-13 1979-10-09 Spengler & Meurer Hair-dressing scissors
DE3603036A1 (en) * 1985-02-13 1986-08-14 Hirakawa, Hachiro, Sakai, Osaka Thinning scissors for hairdressers
DE8513958U1 (en) * 1985-05-10 1985-07-04 Fritz Bracht GmbH & Co KG, 5650 Solingen Thinning scissors
EP1153712A1 (en) * 1999-01-22 2001-11-14 Adachi Kogyo, Inc. Non-slip scissors
JP2003290572A (en) * 2002-04-02 2003-10-14 Adachi Kogyo:Kk Combing scissors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7159321B2 (en) * 2004-09-01 2007-01-09 Wen-Ya Yeh Notched single-edge thinning scissors

Also Published As

Publication number Publication date
ES2362728T3 (en) 2011-07-12
PT1640123E (en) 2011-06-07
EP1640123B1 (en) 2011-03-09
DE602004031732D1 (en) 2011-04-21
ATE500931T1 (en) 2011-03-15

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