EP0543199A1 - Ciseaux de sécurité - Google Patents

Ciseaux de sécurité Download PDF

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Publication number
EP0543199A1
EP0543199A1 EP92118680A EP92118680A EP0543199A1 EP 0543199 A1 EP0543199 A1 EP 0543199A1 EP 92118680 A EP92118680 A EP 92118680A EP 92118680 A EP92118680 A EP 92118680A EP 0543199 A1 EP0543199 A1 EP 0543199A1
Authority
EP
European Patent Office
Prior art keywords
cutting
scissors
scissor blades
cutting edges
protrusions
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.)
Withdrawn
Application number
EP92118680A
Other languages
German (de)
English (en)
Inventor
Jason R. Malone
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.)
CNA Holdings LLC
Original Assignee
Hoechst Celanese Corp
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 Hoechst Celanese Corp filed Critical Hoechst Celanese Corp
Publication of EP0543199A1 publication Critical patent/EP0543199A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
    • B26B29/04—Guards or sheaths for scissors, e.g. combined with manicuring appliances

Definitions

  • the invention relates to safety scissors used to cut synthetic fibers.
  • the invention is directed to scissors having non-cutting protrusions separating cutting edges, whereby the protrusions are spaced to prevent foreign objects such as fingers from coming into contact with the nip of the cutting edges.
  • scissors Numerous types include projections extending from the cutting edge but providing teeth-like gaps as shown in U.S. Patent No. 4,170,064 and 4,660,285. Thinning scissors with two serrated cutting edges are already known and shown in German Patent Specification No. 932,476. In these at least one scissor blade has around cutting edge at the bottom of each of the gashes. It is also known for scissors to have serrated cutting edge of the scissor blade made corrugated for use in hair trimming.
  • the object of the invention is based to design safety scissors of the generic type eliminating a safety hazard for the user.
  • the scissors comprise
  • the protrusions of the first and second scissor blades are spaced to prevent foreign objects such as fingers to enter into the area of the cutting edges. Such an advantage is useful in cutting strands of synthetic fibers.
  • FIG. 1 is a front elevation view of closed cutting scissors according to the invention
  • Fig. 2 is a rear elevational view of the opened scissors
  • Fig. 3 is a sectional view of enlarged scale taken on the line 3-3 of Fig. 1.
  • the scissors 10 include a first scissor half 11 with a scissor blade 12 and a ring handle 13 and the reference numeral 14 denotes the other scissor half with a scissor blade 15 and a ring handle 16.
  • the scissor halves 11 and 14 are connected to one another by means of a joint screw 17.
  • the scissor blade 12 has a series of separated sharp cutting edges 18, and the scissor blade 15 has a series of separated sharp cutting edges 19.
  • the scissor blade 12 has a series of non-cutting dull protrusions 20 and the scissor blade 15 has a series of non-cutting dull protrusions 21.
  • Each smooth cutting edge 18, 19 as shown in Fig. 1 is a short linear smooth cutting edge located between a pair of adjacent non-cutting dull protrusions 20, 21. Furthermore, each smooth cutting edge 18, 19 is formed by an upper beveled edge 22, 23 that linearly intersects with the bottom flat side of each scissor blade 14, 15. Although these edges are shown as linear, other embodiments include bowed edges or slightly curved to facilitate cutting. Each non-cutting dull protrusion 20,21 as shown in Figs. 1 and 2 extend outwardly from each smooth cutting edge 18, 19 forming a blunt projection. Also, each non-cutting dull protrusion 20, 21 is spaced from the back side of the opposite scissor blade 11, 14 to avoid a potential pinch point.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
EP92118680A 1991-11-12 1992-10-31 Ciseaux de sécurité Withdrawn EP0543199A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US79084991A 1991-11-12 1991-11-12
US790849 1991-11-12

Publications (1)

Publication Number Publication Date
EP0543199A1 true EP0543199A1 (fr) 1993-05-26

Family

ID=25151916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118680A Withdrawn EP0543199A1 (fr) 1991-11-12 1992-10-31 Ciseaux de sécurité

Country Status (5)

Country Link
EP (1) EP0543199A1 (fr)
JP (1) JPH05208078A (fr)
KR (1) KR930009717A (fr)
CA (1) CA2082040A1 (fr)
MX (1) MX9206498A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997007944A1 (fr) * 1995-08-22 1997-03-06 Jeremy Luke Ward Ciseaux

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4587226B2 (ja) * 2006-05-08 2010-11-24 義之 山内 梳き鋏

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1806486A (en) * 1930-06-05 1931-05-19 Mirafuentes Alfonso Flores Hair cutting scissors
DE932476C (de) * 1954-01-23 1955-09-01 Ernst Hammesfahr Effiliergeraet
US4170064A (en) * 1977-05-13 1979-10-09 Spengler & Meurer Hair-dressing scissors
US4660285A (en) * 1985-06-18 1987-04-28 Kurt Schmidt Fabrikation Von Stahlwaren Und Chirurgischen Instrumenten (Gmbh. & Co.) Thinning scissors
US4912846A (en) * 1988-03-18 1990-04-03 Ying Ming Yu Disposable razor
EP0451381A1 (fr) * 1990-04-10 1991-10-16 Ying Ming Yu Lame de sécurité

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1806486A (en) * 1930-06-05 1931-05-19 Mirafuentes Alfonso Flores Hair cutting scissors
DE932476C (de) * 1954-01-23 1955-09-01 Ernst Hammesfahr Effiliergeraet
US4170064A (en) * 1977-05-13 1979-10-09 Spengler & Meurer Hair-dressing scissors
US4660285A (en) * 1985-06-18 1987-04-28 Kurt Schmidt Fabrikation Von Stahlwaren Und Chirurgischen Instrumenten (Gmbh. & Co.) Thinning scissors
US4912846A (en) * 1988-03-18 1990-04-03 Ying Ming Yu Disposable razor
EP0451381A1 (fr) * 1990-04-10 1991-10-16 Ying Ming Yu Lame de sécurité

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997007944A1 (fr) * 1995-08-22 1997-03-06 Jeremy Luke Ward Ciseaux

Also Published As

Publication number Publication date
JPH05208078A (ja) 1993-08-20
KR930009717A (ko) 1993-06-21
MX9206498A (es) 1993-05-01
CA2082040A1 (fr) 1993-05-13

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