EP0555850A1 - Scissors of improved type - Google Patents
Scissors of improved type Download PDFInfo
- Publication number
- EP0555850A1 EP0555850A1 EP93102157A EP93102157A EP0555850A1 EP 0555850 A1 EP0555850 A1 EP 0555850A1 EP 93102157 A EP93102157 A EP 93102157A EP 93102157 A EP93102157 A EP 93102157A EP 0555850 A1 EP0555850 A1 EP 0555850A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- scissors
- pair
- portions
- pin
- length
- 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
Links
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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
- B26B13/12—Hand shears; Scissors characterised by the shape of the handles
- B26B13/20—Hand shears; Scissors characterised by the shape of the handles with gripping bows in the handle
-
- 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 present invention relates to a pair of scissors of the improved type.
- the scissors currently on the market consist of two levers hinged to each other in a central manner and presenting a portion wherein an eye is obtained and used for gripping, and a second tapered portion whose inner edge is sharp so as to form a cutting blade.
- Aim of the present invention is the embodiment of a pair of scissors that may obviate to said drawbacks, i.e., that may not be dangerous for users and that, in the event of a fall, may neither damage their cutting blades nor the objects they may fall upon.
- the present invention relates to the embodiment of a pair of scissors characterized in that it comprises two similar portions, a base portion and an upper portion, respectively, revolving around the same axis and of a substantially flat shape, whose profile consists of a first length tracing an arc, preferably having as its center said axis of rotation and at least a further rectilinear length along which a cutting edge is defined; each of said portions presenting at least one grip eyelet.
- number 1 shows a pair of scissors in its whole, of an overall lenticular shape and comprising two identical portions 2, which may be defined, for clarity's sake, as a base portion and an upper portion, respectively, and a system 3 enabling portions 2 to rotate with respect to the same axis or else one portion 2 to be stopped over the other.
- Scissors 1 further present two opposed cutting lines which, as described hereinafter, may be either similar, so that scissors 1 may be utilized by both right-handed and left-handed users, or else different (for instance, one cutting line may be a ratchet-tooth line or have a different thickness) so as to be suitable for cutting objects made of a variety of materials or having varying thickness.
- each portion 2 consists of a plate presenting a flat surface facing the relevant flat surface of the other portion 2 and a convex surface facing outwards.
- the profile of each portion 2 consists of an extended length 4 tracing an arc and of two rectilinear length 5, of equal extension, joining each other in the neighbourhood of the center of said circle.
- the arc relevant to length 4 subtends an angle larger than 180°.
- Each portion 2 presents two eyelets 7, each of them being obtained in the neighbourhood of a relevant length 5, and an opening 8, presenting a large surface extension, defined between said center and the portion of length 4 between eyelets 7.
- the latters, as shown in Fig. 4 are flared from the flat surface to the convex surface.
- a section 11 of opening 8, next to said center is ratchet-tooth like for aesthetics reasons.
- scissors 1 present two cutting lines, each defined by a blade 6 of one portion 2 and by a blade 6 of the other portion 2.
- eyelets 7, opposed to blade 6 of that specific cutting line are utilized.
- Fingers are inserted, of course, into eyelets 7, setting portions 2 into rotation against each other.
- the aim of openings 8, therefore, is that of enabling one finger to be inserted into eyelet 7 of base portion 2 without hindering the finger inserted into eyelet 7 of upper portion 2. Thanks to one portion 2 being able to rotate with respect to the other, cutting may clearly be carried out in an independent manner, along either cutting line.
- a through hole is obtained in each portion 2, in connection with said center, defined by a first length 12, having a triangular section, in connection with the convex surface, and by a second cylindrical length 13 proceeding into the flat surface.
- System 3 is schematically shown in Fig. 4, whereas Fig. 5 shows it in detail.
- System 3 comprises a first pin 14, angularly rigid with base portion 2, and a second pin 15, manually translatable between a first position, wherein it is angularly constrained to pin 14 and angularly free from upper portion 2, and a second position, wherein it is angularly constrained to both pin 14 and upper portion 2.
- Pin 14 comprises a head 16, having a triangular section, housed in length 12 of the hole of base portion 2 and a cylindrical hollow shank 17, threaded in its interior, housed in length 13 of base portion 2 and in a part of length 13 of upper portion 2.
- System 3 comprises a third pin 18 presenting a cylindrical hollow shank 21, threaded on its exterior, and a cylindrical hollow head 22, whose diameter is bigger than shank 21. The latter being screwed inside shank 17 until head 22 abuts against the free end of shank 17 and against an annular shoulder 23 obtained along length 13 of the central hole of upper portion 2. Both fitting and shape of pins 14 and 18 prevent same from being extracted from said holes and allow for the relative rotation of portions 2.
- Pin 15 comprises a head 24, having a triangular section, and a cylindrical shank 25 slidable inside pin 18 between two positions.
- Shank 25 presents two toroidal projections 27, integral therewith.
- Shank 25 further presents, at its free end, an axial protrusion 28 having a limited longitudinal extension and a square section.
- head 24 of pin 15 is external to length 12 of the central hole of upper portion 2 and protrusion 28 is to be found at a predetermined distance from head 16 of pin 14.
- the closest among projections 27 to head 24 snaps into a first annular groove 31 obtained inside pin 18.
- the latter does not hinder the relative rotation of portions 2.
- pin 15 is axially translated along pin 18 until its head 24 engages relevant length 12, the farthest among projections 17 from head 24 snapping into a further annular groove 31, obtained inside pin 18, and protrusion 28 engaging hole 32, having a square section and obtained in the central part of head 16 of pin 14.
- any relative rotation of portions 2 around said axis is clearly prevented.
- Fig. 1 shows scissors 1 in one of the two possible cutting positions, namely in that corresponding to said first position of pin 15, the latter's head 24, as it has been pointed out, being external to relevant length 12.
- portions 2 are rotated so that eyelets 7 of one portion may overlap eyelets 7 of the other portion.
- cutting blades 6 of a first portion 2 are covered by second portion 2 and vice versa. This latter position corresponds to said second position of pin 15.
- a pair of scissors has been obtained, having two alternative cutting lines and two positions, namely, a cutting position along any line whatsoever and a closing position, wherein said scissors take on a disc-like shape.
- the cutting blades tips lie inside said disc, so that both said tips may be protected against possible drop impacts and the surfaces of the pieces of furniture whereon scissors 1 may fall may be prevented from coming into contact therewith.
- the shape of scissors 1 does not allow for them to be gripped as a knife so as to constitute a weapon, as it happens, on the contrary, with the scissors currently on the market. Scissors 1, therefore, are totally safe, so much so that children may handle them with no danger for themselves and for the others.
- portions 2 may be made of a different material, for instance, chromium-plated, nickel-plated or stainless sheet steel may be used. In this event, portions 2 may be obtained by pressing or shearing. Portions 2 may be made of plastic material, for instance, by injection molding.
- the two pairs of blades 6 may be similar or may present different thickness or profiles, in order to adjust to either material or thickness of the object to be cut. Blades 6 may be obtained directly along lengths 5 or else may be inserted and fixed on to relevant lengths 5 by means of a bonding agent or of a mechanic joint, screw or pin lock. In the event of blades 6 of a same portion 2 being inserted, then, they may be made up of either separate parts or of a single piece.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
Abstract
Description
- The present invention relates to a pair of scissors of the improved type.
- As it is well known, the scissors currently on the market consist of two levers hinged to each other in a central manner and presenting a portion wherein an eye is obtained and used for gripping, and a second tapered portion whose inner edge is sharp so as to form a cutting blade.
- One of the main drawbacks of the scissors currently on the market consists in the pointed shape thereof that may be dangerous for users, in particular for children. Indeed, an appallingly huge number of household accidents has been observed to occur owing to an incorrect use of such scissors, so much so that they may be regarded as actual weapons; the so-called "cold steel". Hence, the need for such scissors to be kept out of the children's reach and preferably in suitable cases. A further drawback caused by the pointed shape of the scissors in question consists in that, in the event of their being dropped, their tip may break or else chip thus damaging the object on to which they may fall, such as a wooden piece of furniture, a couch, etc..
- Aim of the present invention is the embodiment of a pair of scissors that may obviate to said drawbacks, i.e., that may not be dangerous for users and that, in the event of a fall, may neither damage their cutting blades nor the objects they may fall upon.
- Further aims and advantages of the present invention shall be pointed out hereinafter.
- The present invention relates to the embodiment of a pair of scissors characterized in that it comprises two similar portions, a base portion and an upper portion, respectively, revolving around the same axis and of a substantially flat shape, whose profile consists of a first length tracing an arc, preferably having as its center said axis of rotation and at least a further rectilinear length along which a cutting edge is defined; each of said portions presenting at least one grip eyelet.
- The present invention will be better described by way of a non-limiting example, with reference to the accompanying drawings, in which:
- Fig. 1 shows a perspective view, in the cutting position, of a pair of scissors according to the present invention;
- Fig. 2 shows a perspective view of the pair of scissors in Fig. 1 in a different position;
- Fig. 3 shows a plan view of the pair of scissors in Fig. 1;
- Fig. 4 shows a section along lines IV-IV in Fig. 3; and
- Fig. 5 shows a large scale section of a detail of the pair of scissors in Fig. 4.
- According to Fig. 1, number 1 shows a pair of scissors in its whole, of an overall lenticular shape and comprising two
identical portions 2, which may be defined, for clarity's sake, as a base portion and an upper portion, respectively, and asystem 3 enablingportions 2 to rotate with respect to the same axis or else oneportion 2 to be stopped over the other. Scissors 1 further present two opposed cutting lines which, as described hereinafter, may be either similar, so that scissors 1 may be utilized by both right-handed and left-handed users, or else different (for instance, one cutting line may be a ratchet-tooth line or have a different thickness) so as to be suitable for cutting objects made of a variety of materials or having varying thickness. - With reference to Fig. 1 to 4, each
portion 2 consists of a plate presenting a flat surface facing the relevant flat surface of theother portion 2 and a convex surface facing outwards. The profile of eachportion 2 consists of an extendedlength 4 tracing an arc and of tworectilinear length 5, of equal extension, joining each other in the neighbourhood of the center of said circle. The arc relevant tolength 4 subtends an angle larger than 180°. Alonglength 5 there is defined a relevant cutting edge constituting areal cutting blade 6. Eachportion 2 presents twoeyelets 7, each of them being obtained in the neighbourhood of arelevant length 5, and anopening 8, presenting a large surface extension, defined between said center and the portion oflength 4 betweeneyelets 7. The latters, as shown in Fig. 4, are flared from the flat surface to the convex surface. Furthermore, asection 11 of opening 8, next to said center, is ratchet-tooth like for aesthetics reasons. - With reference to Fig.s 1 and 3, scissors 1 present two cutting lines, each defined by a
blade 6 of oneportion 2 and by ablade 6 of theother portion 2. In order to cut an object along one cutting line,eyelets 7, opposed toblade 6 of that specific cutting line, are utilized. Fingers are inserted, of course, intoeyelets 7, settingportions 2 into rotation against each other. The aim ofopenings 8, therefore, is that of enabling one finger to be inserted intoeyelet 7 ofbase portion 2 without hindering the finger inserted intoeyelet 7 ofupper portion 2. Thanks to oneportion 2 being able to rotate with respect to the other, cutting may clearly be carried out in an independent manner, along either cutting line. - With reference to Fig. 4, a through hole is obtained in each
portion 2, in connection with said center, defined by afirst length 12, having a triangular section, in connection with the convex surface, and by a secondcylindrical length 13 proceeding into the flat surface.System 3 is schematically shown in Fig. 4, whereas Fig. 5 shows it in detail.System 3 comprises afirst pin 14, angularly rigid withbase portion 2, and asecond pin 15, manually translatable between a first position, wherein it is angularly constrained topin 14 and angularly free fromupper portion 2, and a second position, wherein it is angularly constrained to bothpin 14 andupper portion 2. -
Pin 14 comprises ahead 16, having a triangular section, housed inlength 12 of the hole ofbase portion 2 and a cylindricalhollow shank 17, threaded in its interior, housed inlength 13 ofbase portion 2 and in a part oflength 13 ofupper portion 2.System 3 comprises athird pin 18 presenting a cylindricalhollow shank 21, threaded on its exterior, and a cylindricalhollow head 22, whose diameter is bigger thanshank 21. The latter being screwed insideshank 17 untilhead 22 abuts against the free end ofshank 17 and against anannular shoulder 23 obtained alonglength 13 of the central hole ofupper portion 2. Both fitting and shape ofpins portions 2.Pin 15 comprises ahead 24, having a triangular section, and acylindrical shank 25 slidable insidepin 18 between two positions. Shank 25 presents twotoroidal projections 27, integral therewith. Shank 25 further presents, at its free end, anaxial protrusion 28 having a limited longitudinal extension and a square section. - In a first position,
head 24 ofpin 15 is external tolength 12 of the central hole ofupper portion 2 andprotrusion 28 is to be found at a predetermined distance fromhead 16 ofpin 14. In such a first position, the closest amongprojections 27 to head 24 snaps into a firstannular groove 31 obtained insidepin 18. In this position, beinghead 24 ofpin 15 external torelevant length 12, the latter does not hinder the relative rotation ofportions 2. - In the second position,
pin 15 is axially translated alongpin 18 until itshead 24 engagesrelevant length 12, the farthest amongprojections 17 fromhead 24 snapping into a furtherannular groove 31, obtained insidepin 18, andprotrusion 28 engaginghole 32, having a square section and obtained in the central part ofhead 16 ofpin 14. In such a second position, due to the fittings described hereinabove, any relative rotation ofportions 2 around said axis is clearly prevented. - Fig. 1 shows scissors 1 in one of the two possible cutting positions, namely in that corresponding to said first position of
pin 15, the latter'shead 24, as it has been pointed out, being external torelevant length 12. To bring scissors 1 into a safety position,portions 2 are rotated so thateyelets 7 of one portion may overlapeyelets 7 of the other portion. In such a position, cuttingblades 6 of afirst portion 2 are covered bysecond portion 2 and vice versa. This latter position corresponds to said second position ofpin 15. - On the grounds of the foregoing, the advantages offered by the embodiment of the present inventions are clear.
- In particular, a pair of scissors has been obtained, having two alternative cutting lines and two positions, namely, a cutting position along any line whatsoever and a closing position, wherein said scissors take on a disc-like shape. The cutting blades tips lie inside said disc, so that both said tips may be protected against possible drop impacts and the surfaces of the pieces of furniture whereon scissors 1 may fall may be prevented from coming into contact therewith. Furthermore, the shape of scissors 1 does not allow for them to be gripped as a knife so as to constitute a weapon, as it happens, on the contrary, with the scissors currently on the market. Scissors 1, therefore, are totally safe, so much so that children may handle them with no danger for themselves and for the others. Since scissors 1 consist of two identical portions, both manufacture and assembly thereof clearly do not present any difficulties whatsoever. Along with all above-mentioned advantages as regards cutting, safe use and manufacture, it is to be pointed out that production costs of said scissors 1 are decidedly lower, also due to the remarks contained hereinafter.
- Finally, the present invention described and shown herein may be modified, in such a way, though, as may still fall within the scope of protection of the present invention.
- In particular,
portions 2 may be made of a different material, for instance, chromium-plated, nickel-plated or stainless sheet steel may be used. In this event,portions 2 may be obtained by pressing or shearing.Portions 2 may be made of plastic material, for instance, by injection molding. The two pairs ofblades 6 may be similar or may present different thickness or profiles, in order to adjust to either material or thickness of the object to be cut.Blades 6 may be obtained directly alonglengths 5 or else may be inserted and fixed on torelevant lengths 5 by means of a bonding agent or of a mechanic joint, screw or pin lock. In the event ofblades 6 of asame portion 2 being inserted, then, they may be made up of either separate parts or of a single piece.
Claims (16)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT92BO000019U IT227702Y1 (en) | 1992-02-13 | 1992-02-13 | PERFECTED SCISSORS |
ITBO920019 | 1992-02-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0555850A1 true EP0555850A1 (en) | 1993-08-18 |
EP0555850B1 EP0555850B1 (en) | 1996-07-03 |
Family
ID=11337935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19930102157 Expired - Lifetime EP0555850B1 (en) | 1992-02-13 | 1993-02-11 | Scissors of improved type |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0555850B1 (en) |
DE (1) | DE69303387D1 (en) |
IT (1) | IT227702Y1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007045204A1 (en) | 2007-09-08 | 2009-03-12 | Nivag Handelsgesellschaft Mbh | Wall bracket with tumbler for household kitchen scissors |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1529237A (en) * | 1924-08-20 | 1925-03-10 | Brcecinski Karl | Shears |
US2591740A (en) * | 1950-02-03 | 1952-04-08 | Wilber M Stilwell | Child's safety scissors |
DE4014269A1 (en) * | 1990-05-04 | 1991-11-07 | Pelikan Ag | Scissors with axially movable pivot bolt - enables scissor blades to be locked to each other in closed position |
DE4042360A1 (en) * | 1990-05-04 | 1991-11-14 | Pelikan Ag | Scissors with grip eyes - has curved arms on eyes overlapping when in open position |
-
1992
- 1992-02-13 IT IT92BO000019U patent/IT227702Y1/en active IP Right Grant
-
1993
- 1993-02-11 DE DE69303387T patent/DE69303387D1/en not_active Expired - Lifetime
- 1993-02-11 EP EP19930102157 patent/EP0555850B1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1529237A (en) * | 1924-08-20 | 1925-03-10 | Brcecinski Karl | Shears |
US2591740A (en) * | 1950-02-03 | 1952-04-08 | Wilber M Stilwell | Child's safety scissors |
DE4014269A1 (en) * | 1990-05-04 | 1991-11-07 | Pelikan Ag | Scissors with axially movable pivot bolt - enables scissor blades to be locked to each other in closed position |
DE4042360A1 (en) * | 1990-05-04 | 1991-11-14 | Pelikan Ag | Scissors with grip eyes - has curved arms on eyes overlapping when in open position |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007045204A1 (en) | 2007-09-08 | 2009-03-12 | Nivag Handelsgesellschaft Mbh | Wall bracket with tumbler for household kitchen scissors |
Also Published As
Publication number | Publication date |
---|---|
EP0555850B1 (en) | 1996-07-03 |
ITBO920019V0 (en) | 1992-02-13 |
ITBO920019U1 (en) | 1993-08-13 |
DE69303387D1 (en) | 1996-08-08 |
IT227702Y1 (en) | 1997-12-15 |
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