EP0115358B1 - Hand-scissors - Google Patents

Hand-scissors Download PDF

Info

Publication number
EP0115358B1
EP0115358B1 EP19840200001 EP84200001A EP0115358B1 EP 0115358 B1 EP0115358 B1 EP 0115358B1 EP 19840200001 EP19840200001 EP 19840200001 EP 84200001 A EP84200001 A EP 84200001A EP 0115358 B1 EP0115358 B1 EP 0115358B1
Authority
EP
European Patent Office
Prior art keywords
hand
scissors
cutting edges
pair
blades
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
Application number
EP19840200001
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0115358A1 (en
Inventor
Arnoldus Jacobus Hornstra
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.)
Hammesfahr Holland Scharenfabriek BV
Original Assignee
Hammesfahr Holland Scharenfabriek BV
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 Hammesfahr Holland Scharenfabriek BV filed Critical Hammesfahr Holland Scharenfabriek BV
Publication of EP0115358A1 publication Critical patent/EP0115358A1/en
Application granted granted Critical
Publication of EP0115358B1 publication Critical patent/EP0115358B1/en
Expired 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

Definitions

  • the invention relates to a pair of hand-scissors, comprising two relatively pivotable blades having cooperating cutting edges and operating means adapted to be gripped by the hand.
  • Such a pair of scissors is known from DE-A-1 553 695.
  • the disadvantage of this prior art pair of scissors is that in cutting relatively hard materials they become blunt in an intolerantly short time, causing the scissors to have to be repeatedly re- sharpened, or preventing their use, so that one has to resort to other techniques.
  • prior art pairs of hand-scissors usually have the cutting angle of the cutting edges chosen to be only a little less than 90°. This causes the effectiveness of the cutting operation to be not very great, so that a relatively large cutting force has to be exerted with the hand.
  • Purpose of the invention is to relieve the mentioned disadvantages and limitations of the prior art and in view thereof the invention provides a pair of hand-scissors of the type described, which is characterized in that said cutting edges consist of tungsten-carbide and in that the cutting angle of said cutting edges is less than 50°.
  • the cutting edges may be made in the form as strips adhered to said blades.
  • the cutting edges are adhered to said blades by hard-soldering. Also other connecting methods may be used.
  • Fig. 1 shows a pair of hand-scissors 1, comprising two relatively, round a pivot-shaft 2 pivotable blades 3, 4 having cooperating cutting edges, 5 and 6, respectively, in which hand-grips 7, 8 are present at the end directed away from the cutting edges 5, 6 relatively to the pivot-shaft 2.
  • the cutting edges 5, 6 comprise strips 9, 10 of tungsten-carbide.
  • the strips 9, 10 are in the way shown in Fig. 2 embedded in blades 3, 4 and connected therewith by hard-soldering, in such a way that they are fully received in the profile.
  • this angle has a value of about 40°.
  • the pair of hand-scissors 2 can also comprise blades fully consisting of tungsten carbide. Further the blades may be urged from one another by spring-force, in which, in distinction to the embodiment according to Fig. 1, the operating means can be positioned at the side of the cutting edges relative to the pivot middle-point.
  • Fig. 3 shows a so-called one-ring pair of scissors 11 having relatively pivotable blades 12, 13 of synthetic resin, which be means of screws 14, strips 15, 16 of tungsten-carbide are connected. These strips 15, 16 carry cutting edges 17, 18 respectively.
  • the blade 12 carries a ring 19, which is intended to receive the ring-finger, and a flat part 20 for cooperation with the middle-finger and forefinger.
  • the blade 13 carries a flat part 21 intended to receive a pressure exerted thereof by the thumb. Blades 12, 13 are urged away from one another by screw-spring 22 indicated by dotted lines in Fig. 4.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Scissors And Nippers (AREA)
EP19840200001 1983-01-06 1984-01-03 Hand-scissors Expired EP0115358B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8300037 1983-01-06
NL8300037A NL8300037A (nl) 1983-01-06 1983-01-06 Handschaar.

Publications (2)

Publication Number Publication Date
EP0115358A1 EP0115358A1 (en) 1984-08-08
EP0115358B1 true EP0115358B1 (en) 1987-11-25

Family

ID=19841193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840200001 Expired EP0115358B1 (en) 1983-01-06 1984-01-03 Hand-scissors

Country Status (5)

Country Link
EP (1) EP0115358B1 (pt)
JP (1) JPS59137078A (pt)
BR (1) BR8400027A (pt)
DE (1) DE3467728D1 (pt)
NL (1) NL8300037A (pt)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1846867A (en) * 1931-08-08 1932-02-23 Quincy W Hershey Convertible right- and left-handed scissors
US2873526A (en) * 1957-01-21 1959-02-17 Visconti Otto Scissors
US3416209A (en) * 1966-03-24 1968-12-17 Gen Electric Cutting tool
DE1553695A1 (de) * 1967-04-04 1971-05-19 Holland Letz Felo Werkzeug Schere
DE2529305C2 (de) * 1975-07-01 1978-05-24 Wolf-Geraete Gmbh, 5240 Betzdorf Allzweckschere
FR2495041A1 (fr) * 1980-11-28 1982-06-04 Hugoniot Fernand Perfectionnement aux pinces et outils coupants

Also Published As

Publication number Publication date
EP0115358A1 (en) 1984-08-08
BR8400027A (pt) 1984-08-14
DE3467728D1 (en) 1988-01-07
JPS59137078A (ja) 1984-08-06
NL8300037A (nl) 1984-08-01

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