US20050150114A1 - Industrial scissors - Google Patents
Industrial scissors Download PDFInfo
- Publication number
- US20050150114A1 US20050150114A1 US10/988,351 US98835104A US2005150114A1 US 20050150114 A1 US20050150114 A1 US 20050150114A1 US 98835104 A US98835104 A US 98835104A US 2005150114 A1 US2005150114 A1 US 2005150114A1
- Authority
- US
- United States
- Prior art keywords
- blade
- scissors
- serrations
- edge
- cutting
- 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.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
- H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
- H02G1/1204—Hand-held tools
- H02G1/1207—Hand-held tools the cutting element not rotating about the wire or cable
- H02G1/1209—Hand-held tools the cutting element not rotating about the wire or cable making a transverse cut
- H02G1/1214—Hand-held tools the cutting element not rotating about the wire or cable making a transverse cut not using wire or cable clamping means
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
Abstract
The present invention is industrial scissors and a method of manufacturing and using same including first and second scissor halves, each half having a blade, a handle, and first and second major opposed surfaces. Each blade has a first edge that is relatively thick and blunt tapered to a second edge that is sharp to form a cutting edge. Serrations are formed in the cutting edge of the blade having larger radii between the pivot point and the midpoint of the blade and smaller serrations between the midpoint of the blade and the tip of the blade to provide a gripping surface for preventing an object being cut from sliding down the blade toward the tip of the blade while cutting the object. Wire strippers are positioned between the handle and the pivot point of the scissors. A deburring surface is made from a plurality of filing grooves spaced transversely along the blunt side of the blade.
Description
- This application is a division of co-pending U.S. patent application Ser. No. 10/188,241, filed Jul. 1, 2002, the entire contents of which is incorporated herein in its entirety.
- The present invention relates to industrial scissors that can be used to cut a variety of objects, deburr tubes, and strip insulation from a variety of wire sizes. In general, separate tools are used for cutting, deburring and stripping insulation from wires in industrial settings and in the home. There are a wide variety of scissors for cutting objects, deburring tools for filing and wire strippers for removing insulation from various wire types and sizes on the market today. A need has arisen for an improved three-in-one tool that is compact and easy to use.
- The present invention provides for industrial scissors having first and second scissor halves with substantially identical dimensional features. The scissors have a unique method for gripping an object and preventing the object from sliding down a blade on one or both halves towards the tip while cutting the object. Serrations on a cutting edge of the blade having a larger radii and/or larger depth between the pivot point and the midpoint of the blade and serrations on the cutting edge of the blade having smaller radii and/or smaller depth between the midpoint and the tip of the blade respectively are used for gripping and cutting objects such as rounded items that tend to slide away from the cutting action. The scissors can be used to cut a wide variety of difficult to cut materials and objects, such as Kevlar® and garage door cables, etc. A plurality of filing grooves spaced transversely apart from each other along a blunt edge opposite of the sharp edge of the blade are used for deburring tubes and the like. A plurality of grooves having apertures and sharp cutting edges on the ends thereof are positioned between the pivot point and the handle of the scissors for use as wire strippers. The stripping grooves are designed with varying depths and radii so that insulation can be stripped from different gauge wires.
- A method for manufacturing industrial scissors according to the present invention includes the steps of casting a scissor half from metal to form a rough shaped blade, handle, grooves on a blunt side of the blade, and wire stripper grooves between a pivot point and the handle with excess material to form a pad on the opposite side of the wire stripper grooves. The method includes grinding excess material from the blade and the wire stripping pad to form the sharp edge on the blade and to form apertures with sharp edges for stripping the insulation from wires of various gauge sizes. The method also includes forming serrations on the sharp edge of the blade of various radii and depths and forming grooves in the blunt side of the blade for deburring tubes and the like.
- A method of use for industrial scissors is also disclosed using serrations in the blade to obtain a strong grip on an object to be cut so that the object will not slide down the blade away from the cutting edge of the blade as the blades are squeezed together.
- Other applications of the present invention will become apparent to those skilled in the art when the following description of the best mode contemplated for practicing the invention is read in conjunction with the accompanying drawings.
- The description herein makes reference to the accompanying drawings wherein like reference numerals refer to like parts throughout the several views, and wherein:
-
FIG. 1 is a perspective view of assembled industrial scissors; -
FIG. 2 is a side elevation view of a first half of the scissors ofFIG. 1 ; -
FIG. 3 is a side elevation view of a second half of the scissors ofFIG. 1 ; and -
FIG. 4 is a perspective view of a scissors' casting. - A pair of
industrial scissors 10 is illustrated inFIG. 1 . Thescissors 10 have nearlyidentical halves blade 18 and ahandle 20. The only difference betweenscissor halves scissor half 12 has around recess 16 on the surface of theblade 18 for allowing ascrew 11 with around head 13 to fit into therecess 16 such that thescrew head 13 is substantially flush with the outer surface of theblade 18. Thescrew 11 holds thescissor halves Scissor half 14 has ahexagonal recess 17 on the outer surface of theblade 18 for allowing ahexagonal nut 15 to thread onto thescrew 11 and to be substantially flush with the outer surface of theblade 18. Thehandles 20 can be finger loops or rings, similar in style to traditional scissors. Theloops 20 can be identical for eachscissor half scissors 10 can be used by a right-handed or left-handed user. -
FIG. 2 shows a side elevation view of thefirst scissor half 12. Thefirst scissor half 12 has ablade 18 with a relatively thickblunt edge 22 on a first edge tapered down to form asharp cutting edge 24 on a second edge. Theblade 18 has a midpoint 26 and atip 28 at the end thereof. Thescissor half 12 is pivotally connected at apivot point 30 to thesecond half 14, positioned between theblade 18 and thehandle 20, such that as thehandles 20 of thescissor halves blades 18 of thehalves pivot point 30 of thescissor half 12, a through-bore in eachscissor half screw 11 to engage through eachscissor half scissor halves - As shown in
FIG. 3 , thesecond scissor half 14 has substantially identical dimensional features to that of thefirst half 12 except that atpivot point 30, ahexagonal recess 17 is formed in the outside surface thereof for allowing ahexagonal nut 15 to fit therein for threadably engaging thescrew 11 to pivotally hold thescissor halves hexagonal recess 17 prevents thehexagonal nut 15 from rotating in a loosening direction. -
FIG. 4 shows a perspective view of ascissor half casting 60. Thecasting 60 has additional material in areas to be finished by subsequent machining operations.Excess material 62 is cast onto one edge of the scissor half for allowingdeburring grooves 36 to be machined into ablunt edge 22.Excess material 64 is cast onto the opposite edge for allowing asharp edge 24 to be honed and subsequently formingserrations blade 18 after the sharpening operation. Apad 39 withgrooves 38 on one side andexcess material 68 on the other side is cast into eachscissor half 60 between thehandle 20 and thepivot point 30. As theexcess material 68 is ground down in a machining operation,apertures 40 having sharp edges are exposed on the ends thereof such that when two scissor halves are assembled, thegrooves 38 on eachhalf - Referring back to
FIG. 2 , means for gripping an object to prevent the object from sliding down theblades 18 toward thetips 28 of theblades 18 of thescissor halves large radii serrations 32 andsmall radii serrations 34 on thecutting edges 24 of bothblades 18. Theserrations 32 which have a large radii cut optionally at varying depths are located between thepivot point 30 and the midpoint 26 ofscissors 10 and thesmall serrations 34 with smaller radii cut optionally at smaller depths are located between the midpoint 26 and thetip 28 of thescissors 10. - The
scissors 10 have means for deburring tubes and the like. The means for deburring tubes is a plurality offiling grooves 36 spaced transversely apart along theblunt edge 22 of eachblade 18. - The
scissors 10 include means for stripping insulation from electrical cords or wires without cutting into the wire. The stripping means is a plurality ofgrooves 38 havingapertures 40 with a sharp edge on the ends thereof. Thestripping grooves 38 are positioned between thepivot point 30 and thehandles 20 of thescissors 10. Thestripping grooves 38 have variable radii and depths so that insulation can be cut from various gauge wires. Thescissors 10 have means for restricting the wire strippers from traversing too far and cutting into a wire. This restricting means is apad 42 attached to eachhandle 20 that acts as a stop when thehandles 20 are squeezed together and make contact with each other. - The preferred material used to form the
scissors 10 is stainless steel 440C. This material is used because it is oxidation resistant and can be used in surgical areas that require the use of an autoclave for cleaning and disinfecting thescissors 10. - A method for manufacturing
industrial scissors 10 includes forming preferably by casting thescissors 10 from metal to form roughshaped blades 18, handles 20,grooves 36 on afirst edge 22 of theblade 18 for use as a deburrer andwire stripper grooves 38 located between thepivot point 30 of thescissors 10 and thehandle 20 with excess material to form apad 42 on the opposite side of thewire stripper grooves 38. The method of manufacture further includes grinding excess material from theblades 18 and thewire stripping pad 39 preferably during one manufacturing operation to form a cutting or grindingedge 24 on theblades 18 and to formapertures 40 with sharp edges for stripping insulation from wires of various gauge sizes. The next step in the manufacturing process is to machineserrations cutting edge 24 of theblades 18. Theseserrations blades 18, such as round articles, so that thescissors 10 can cut the objects. Theserrations Larger serrations 32 are formed from approximately thepivot point 30 of thescissors 10 to the blade midpoint 26.Smaller serrations 34 are machined from approximately the blade midpoint 26 to theblade tip 28. - A method of use for industrial scissors includes using the
serrations blade 18 to obtain a strong grip on the object to be cut so that the object will not slide down theblades 18 and away from thecutting edge 24 as theblades 18 are squeezed together.
Claims (4)
1. A method of use of industrial scissors having pivotal blade ends each with a cutting edge comprising the step of:
providing serrations on a cutting edge of at least one of the blades; and
using certain of the serrations to obtain a strong grip on an object to be cut to prevent the object from sliding down the blade away from the cutting edge of the blade as the blades are moved together to cut the object.
2. The method of claim 1 further comprising the step of:
forming the serrations with different radii.
3. The method of claim 2 further comprising the step of:
using first larger radii for gripping large objects.
4. The method of claim 2 further comprising the step of:
using second smaller radii for gripping small objects.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/988,351 US20050150114A1 (en) | 2002-07-01 | 2004-11-11 | Industrial scissors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/188,241 US6925717B1 (en) | 2002-07-01 | 2002-07-01 | Industrial scissors |
US10/988,351 US20050150114A1 (en) | 2002-07-01 | 2004-11-11 | Industrial scissors |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/188,241 Division US6925717B1 (en) | 2002-07-01 | 2002-07-01 | Industrial scissors |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050150114A1 true US20050150114A1 (en) | 2005-07-14 |
Family
ID=34738348
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/188,241 Expired - Fee Related US6925717B1 (en) | 2002-07-01 | 2002-07-01 | Industrial scissors |
US10/988,351 Abandoned US20050150114A1 (en) | 2002-07-01 | 2004-11-11 | Industrial scissors |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/188,241 Expired - Fee Related US6925717B1 (en) | 2002-07-01 | 2002-07-01 | Industrial scissors |
Country Status (1)
Country | Link |
---|---|
US (2) | US6925717B1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080045990A1 (en) * | 2006-08-15 | 2008-02-21 | Susan Lynn Valerio | Combination medical bandage scissors |
ITBO20090823A1 (en) * | 2009-12-24 | 2011-06-25 | Ht Italia S R L | SCISSORS |
EP2497614A1 (en) * | 2011-03-11 | 2012-09-12 | ProPress GmbH | Shears for cutting through a connecting pipe |
EP2538509A1 (en) * | 2011-06-23 | 2012-12-26 | Gimap S.r.l. | Scissors for electricians and the like |
US20130326882A1 (en) * | 2012-06-06 | 2013-12-12 | Milwaukee Electric Tool Corporation | Hand tool including a wire strippers |
US20150217462A1 (en) * | 2014-02-03 | 2015-08-06 | Progressive International Corporation | Herb shears |
US20180015562A1 (en) * | 2015-01-31 | 2018-01-18 | Audi Ag | Cleaning device for mechanically cleaning a gas nozzle of a gas-shielded welding torch |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090277019A1 (en) * | 2008-05-06 | 2009-11-12 | Mueller Kerry M | Child resistant safety scissor |
US20180029241A1 (en) * | 2016-07-29 | 2018-02-01 | Liquidmetal Coatings, Llc | Method of forming cutting tools with amorphous alloys on an edge thereof |
Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US409064A (en) * | 1889-08-13 | Box-pull | ||
US409485A (en) * | 1889-08-20 | Receptacle for merchandise | ||
US421375A (en) * | 1890-02-18 | Railway-car | ||
US431436A (en) * | 1890-07-01 | Metallic ceiling | ||
US882781A (en) * | 1907-11-15 | 1908-03-24 | William H Gerfin | Pruning implement. |
US1903257A (en) * | 1932-02-23 | 1933-03-28 | Dahl Charles | Shears |
US2218213A (en) * | 1938-12-21 | 1940-10-15 | George W Newman | Pruning device |
US2260884A (en) * | 1940-08-21 | 1941-10-28 | Owen K Clinton | Shears |
US3222783A (en) * | 1963-03-21 | 1965-12-14 | Kolts Donald | Pinking shears for making pleats |
US3257723A (en) * | 1963-10-21 | 1966-06-28 | Cercone Daniel | Shears |
US3676930A (en) * | 1970-07-17 | 1972-07-18 | Mcdonough Co | Hedge shears |
US3980086A (en) * | 1974-02-28 | 1976-09-14 | Bio-Medicus, Inc. | Fluid conveying surgical instrument |
US4048721A (en) * | 1976-09-10 | 1977-09-20 | Russell (Shears) Limited | Scissors |
US4420884A (en) * | 1981-12-11 | 1983-12-20 | The Scott & Fetzer Company | Camming scissors |
US4660285A (en) * | 1985-06-18 | 1987-04-28 | Kurt Schmidt Fabrikation Von Stahlwaren Und Chirurgischen Instrumenten (Gmbh. & Co.) | Thinning scissors |
US5107591A (en) * | 1991-04-01 | 1992-04-28 | Hikari Corporation | Thinning scissors |
US5430940A (en) * | 1993-07-23 | 1995-07-11 | Lym; Sungdae | Scissors combined with a cutter knife |
US5469622A (en) * | 1994-11-01 | 1995-11-28 | Gradoni; John T. | Pizza cutting scissors |
US5711182A (en) * | 1996-09-09 | 1998-01-27 | Yang; Shyi-Dong | Crimping tool with wire stripping capability |
US5809654A (en) * | 1997-06-27 | 1998-09-22 | Huang; Show-Zuh | Tree pruner |
US6129622A (en) * | 1998-08-26 | 2000-10-10 | Seaman; Allen | Pair of scissors for cutting shellfish |
USD452125S1 (en) * | 2000-05-04 | 2001-12-18 | Velecta Paramount | Taper scissors |
US6385851B2 (en) * | 2000-02-22 | 2002-05-14 | Een-Ya Yeh | Hairdressing scissors for cutting small amount of hair or special style |
US6497522B2 (en) * | 2000-04-17 | 2002-12-24 | Hewlett-Packard Company | Edge lift reduction for belt type transports |
US6651345B1 (en) * | 1999-01-22 | 2003-11-25 | Hidemi Adachi | Non-slip scissors |
US7169033B1 (en) * | 2005-10-21 | 2007-01-30 | Colbert Norman V | Seafood sheller |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5430941A (en) | 1994-07-12 | 1995-07-11 | Shung Wei Industrial Co., Ltd. | Pair of scissors with replaceable blades |
US5497522A (en) * | 1994-08-02 | 1996-03-12 | Chen; Chin-Chuan | Combination tool |
USD409465S (en) | 1998-09-03 | 1999-05-11 | Heritage Cutlery, Inc. | Pair of scissors |
USD409064S (en) | 1998-09-03 | 1999-05-04 | Heritage Cutlery, Inc. | Pair of scissors |
USD419842S (en) | 1999-01-08 | 2000-02-01 | Heritage Cutlery, Inc. | Electrician's scissors |
USD431436S (en) | 1999-03-09 | 2000-10-03 | Manufacture D'articles De Precision | Scissors |
USD421375S (en) | 1999-05-25 | 2000-03-07 | Fiskars Inc. | Softgrip pinker |
-
2002
- 2002-07-01 US US10/188,241 patent/US6925717B1/en not_active Expired - Fee Related
-
2004
- 2004-11-11 US US10/988,351 patent/US20050150114A1/en not_active Abandoned
Patent Citations (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US409064A (en) * | 1889-08-13 | Box-pull | ||
US409485A (en) * | 1889-08-20 | Receptacle for merchandise | ||
US421375A (en) * | 1890-02-18 | Railway-car | ||
US431436A (en) * | 1890-07-01 | Metallic ceiling | ||
US882781A (en) * | 1907-11-15 | 1908-03-24 | William H Gerfin | Pruning implement. |
US1903257A (en) * | 1932-02-23 | 1933-03-28 | Dahl Charles | Shears |
US2218213A (en) * | 1938-12-21 | 1940-10-15 | George W Newman | Pruning device |
US2260884A (en) * | 1940-08-21 | 1941-10-28 | Owen K Clinton | Shears |
US3222783A (en) * | 1963-03-21 | 1965-12-14 | Kolts Donald | Pinking shears for making pleats |
US3257723A (en) * | 1963-10-21 | 1966-06-28 | Cercone Daniel | Shears |
US3676930A (en) * | 1970-07-17 | 1972-07-18 | Mcdonough Co | Hedge shears |
US3980086A (en) * | 1974-02-28 | 1976-09-14 | Bio-Medicus, Inc. | Fluid conveying surgical instrument |
US4048721A (en) * | 1976-09-10 | 1977-09-20 | Russell (Shears) Limited | Scissors |
US4420884A (en) * | 1981-12-11 | 1983-12-20 | The Scott & Fetzer Company | Camming scissors |
US4660285A (en) * | 1985-06-18 | 1987-04-28 | Kurt Schmidt Fabrikation Von Stahlwaren Und Chirurgischen Instrumenten (Gmbh. & Co.) | Thinning scissors |
US5107591A (en) * | 1991-04-01 | 1992-04-28 | Hikari Corporation | Thinning scissors |
US5430940A (en) * | 1993-07-23 | 1995-07-11 | Lym; Sungdae | Scissors combined with a cutter knife |
US5469622A (en) * | 1994-11-01 | 1995-11-28 | Gradoni; John T. | Pizza cutting scissors |
US5711182A (en) * | 1996-09-09 | 1998-01-27 | Yang; Shyi-Dong | Crimping tool with wire stripping capability |
US5809654A (en) * | 1997-06-27 | 1998-09-22 | Huang; Show-Zuh | Tree pruner |
US6129622A (en) * | 1998-08-26 | 2000-10-10 | Seaman; Allen | Pair of scissors for cutting shellfish |
US6651345B1 (en) * | 1999-01-22 | 2003-11-25 | Hidemi Adachi | Non-slip scissors |
US6385851B2 (en) * | 2000-02-22 | 2002-05-14 | Een-Ya Yeh | Hairdressing scissors for cutting small amount of hair or special style |
US6497522B2 (en) * | 2000-04-17 | 2002-12-24 | Hewlett-Packard Company | Edge lift reduction for belt type transports |
USD452125S1 (en) * | 2000-05-04 | 2001-12-18 | Velecta Paramount | Taper scissors |
US7169033B1 (en) * | 2005-10-21 | 2007-01-30 | Colbert Norman V | Seafood sheller |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080045990A1 (en) * | 2006-08-15 | 2008-02-21 | Susan Lynn Valerio | Combination medical bandage scissors |
ITBO20090823A1 (en) * | 2009-12-24 | 2011-06-25 | Ht Italia S R L | SCISSORS |
EP2497614A1 (en) * | 2011-03-11 | 2012-09-12 | ProPress GmbH | Shears for cutting through a connecting pipe |
EP2538509A1 (en) * | 2011-06-23 | 2012-12-26 | Gimap S.r.l. | Scissors for electricians and the like |
US20130326882A1 (en) * | 2012-06-06 | 2013-12-12 | Milwaukee Electric Tool Corporation | Hand tool including a wire strippers |
US20150217462A1 (en) * | 2014-02-03 | 2015-08-06 | Progressive International Corporation | Herb shears |
US20180015562A1 (en) * | 2015-01-31 | 2018-01-18 | Audi Ag | Cleaning device for mechanically cleaning a gas nozzle of a gas-shielded welding torch |
US10464158B2 (en) * | 2015-01-31 | 2019-11-05 | Audi Ag | Cleaning apparatus for a mechanical cleaning of a gas nozzle of a protective gas welding burner |
Also Published As
Publication number | Publication date |
---|---|
US6925717B1 (en) | 2005-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |