US3792636A - Paper trimmer - Google Patents

Paper trimmer Download PDF

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Publication number
US3792636A
US3792636A US00312319A US3792636DA US3792636A US 3792636 A US3792636 A US 3792636A US 00312319 A US00312319 A US 00312319A US 3792636D A US3792636D A US 3792636DA US 3792636 A US3792636 A US 3792636A
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US
United States
Prior art keywords
platform
cutting edge
locking
slot
finger guard
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 - Lifetime
Application number
US00312319A
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English (en)
Inventor
A Pottern
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.)
Milton Bradley Co
Original Assignee
Milton Bradley Co
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 Milton Bradley Co filed Critical Milton Bradley Co
Application granted granted Critical
Publication of US3792636A publication Critical patent/US3792636A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/30—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut with limited pivotal movement to effect cut
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7593—Work-stop abutment
    • Y10T83/76—With scale or indicator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/872—With guard means
    • Y10T83/8722—Static
    • Y10T83/8723—Adjustable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8798—With simple oscillating motion only
    • Y10T83/8812—Cutting edge in radial plane

Definitions

  • PAIENEEM EJSZpSSS SHEET 2 BF 2 PAPER TRIMMER The present invention relates generally to new and useful improvements and structural refinements in trimming and cutting apparatus and is essentially designed and adapted for embodiment in a hand-operated type of cutter having a stationary blade and a movable blade cooperating therewith for the shearing and trimming of sheets placed therebetween.
  • a primary object of the invention is to provide a novel finger guide for protecting the fingers of an operator.
  • Another object is to provide a guide assembly slidably disposed relative to the platform of the cutter and against which an edge of the paper to be cut may be butted, along with releasable locking means for locking the guide assembly in desired positions of adjustment.
  • FIG. 1 is a top plan view of trimming apparatus embodying the invention
  • FIG. 2 is a side elevational view as seen from the right of FIG. 1;
  • FIG. 3 is a side elevational view similar to FIG. 2 with the cutting blade raised;
  • FIG. 4 is a side elevational view as seen from the left of FIG. I with the cutting blade raised;
  • FIG. 4A is an enlarged fragmentary side elevational view similar to FIG. 4, with the releasable lock moved to concealed position;
  • FIG. 5 is an enlarged, fragmentary bottom plan view of the paper guide assembly
  • FIG. 5A is a side elevational view of the paper guide assembly of FIG. 5;
  • FIG. 6 is a bottom plan view similar to FIG. 5 of the paper guide assembly with portions removed for clar' lty;
  • FIG. 7 is an enlarged, broken side elevational view of the finger guard
  • FIG. 8 is a fragmentary side elevational view of the finger guard lock.
  • FIG. 9 is a fragmentary front elevational view of the finger guard lock.
  • platform work surface 2 which is preferentially formed from plastic, although steel, aluminum, wood or equally light-weight material may be substituted therefor.
  • bumpers such as 4 are fixed to the lowermost face of platform 2.
  • the top planar surface of the platform 2 may be delineated into suitable unit squares by means of series of spaced graduation lines 6 arranged at right angles to each other.
  • the graduation lines of each series may be spaced a certain predetermined distance apart, as for example one inch, and function for properly aligning the material to be trimmed during the cutting operation.
  • a horizontally-disposed stationary cutting blade 8 is fixed within a recess or inset along one edge of the upper planar surface of the platform 2, in manner to partly overlap the same.
  • the stationary cutting blade is provided with an outermost, elongated, verticallydisposed cutting edge which is disposed slightly beyond the vertical plane of the adjacent side edge of the platform 2 and is adapted to cooperate with a movable cutting blade to produce a shearing action.
  • a housing it is formed along the back edge of th platform adjacent the fixed blade and functions as journal.
  • a horizontally-disposed pivot shaft not shown, i mounted within a suitable aperture extending throug said housing in manner as to be rotatable relativ thereto. That is, the housing serves as a bearing lug fo the rotative motion of the pivot shaft relative to th housing and platform.
  • the carrier carries a generally right angu lar pivot shaft which is pivoted in the housing so tha the carrier is pivotally mounted in one corner of th platform.
  • a vertically-disposed movable cutting blade 14 is re movably secured to the carrier 12 and has a lowermos horizontally disposed longitudinal cutting edge for co operating with the cutting edge of the horizontally disposed stationary cutting blade 8.
  • the movable cutting blade 1 works in a vertical plane in conjunction with the fixet or stationary cutting blade 8 at the edge of the platforn 2 to produce a shearing cut and to remove such portior of a work sheet or sheets as is or are placed upon the platform to project beyond the cutting edge of the fixer blade.
  • a combination torsion-compression spring is disposed within housing It), the spring serving two functions, namely, it exerts an inward pull on the carrier which in turn exerts pressure on the movable cutting knife which is necessary to insure intimate contact between the fixed and movable cutting blades and it acts as a counter-balance to maintain the carriei in fixed open position.
  • the opposite end of the carrier 12 provides a handengaging end or handle 16 and may be slightly angularly disposed relative to the longitudinal axis of the shank thereof, as shown in FIG. 1, so as to facilitate the gripping thereof and to facilitate the swinging of the carrier up and down relative to the housing and platform.
  • a straight edge abutment 18, which is preferably formed as an integral part of platform 2, projects above the plane upper surface of the platform 2 along one edge of the platform at right angles to the cutting edge of the stationary cutting blade to form an abutment against which an edge of the paper may rest.
  • Said abutment 18 may carry indicia 20 such as a graduated scale to facilitate the making of fractional adjustments, the inner edge of said abutment functioning as a guide for the edges of sheets being trimmed.
  • the indicia 20 may be graduated scale sections and may be graduations in inches or in metric equivalents thereof so as to be representative of distances from the cutting edge of the stationary blade.
  • a releasable lock 22 pivoted to carrier 12 is engageable with a latch plate 24 on platform 2 whereby the carrier may be secured in locked position relative to the platform.
  • lock 22 When lock 22 is released, the carrier may be swung upwardly to the position shown in FIGS. 3 and 4, while the lock may be rotated counterclockwise to a concealed position between cutting blade 14 and carrier 12 as shown in FIG. 4A.
  • the finger guard is fixed at one end, as by a bolt 28 to abutment l8 and housing 10 and is releasably secured at its opposite end, as by releasable locking means generally indicated by 30, to platform 2.
  • the finger guard has a somewhat inverted L shape, and includes a sloping wall 32 which extends angularly upwardly and inwardly from the cutting edge of stationary blade 8 and merges with an overhanging horizontal wall 34 disposed in spaced parallel relation to the platform.
  • the sloping wall 32 permits the fingers of the user to be brought without danger into close adjacency to the cutting edge of the stationary blade, thereby to exert a firm pressure on the paper to be trimmed, and the overhanging horizontal wall 34 precludes accidental contact with the movable cutting blade should the fingers slip.
  • An inwardly extending bottom wall 36 provided at one end of the finger guard permits its attachment to abutment 18 by means of a bolt 28.
  • Locking means 30 is releasably associated with platform 2 so that the finger guard may be raised if desired, the plastic material from which the finger guard is formed being sufficiently resilient to permit it to bend at its inner end relative to bolt 28 so that it may be moved upwardly away from the platform.
  • Locking means 30 includes an upright housing 38 having a vertically-disposed through-bore 40 therein, the through-bore being enlarged at its upper end at 42 and at its lower end at 44, for purposes to appear.
  • a locking pin has a shaft 46 slidably receivable in through-bore 40, the locking pin having a head 48 at its upper end and a foot 50 at its lower end.
  • a spring 52 sleeved on shaft 46 is fixed at its lower end to housing 38 adjacent enlarged portion 42 and is fixed at its upper end to head 48.
  • FIG. 7 shows locking means 30 in unlocked position
  • FIGS. 8 and 9 show it in locked position.
  • the upper end of the locking pin When in unlocked position, the upper end of the locking pin extends outwardly from housing 38, with head 48 thereof being disposed above the plane of the finger guard and with foot 50 thereof being disposed within the housing and engaged with the wall defined by lower enlargement 44.
  • head 48 is twisted to swing Foot 50 clear of extension 58 whereupon the locking Jin is urged upwardly by spring 52 within housing 38 mtil foot 50 abuts the upper wall of lower enlargement 14, at which time the finger guard may be swung upvardly away from the platform.
  • a primary advantage of my invention flows from the guide assembly, generally indicated by 60, and now to )e described.
  • the entire guide assembly may be easily 'emoved. If however, several sheets are to be cut to the ame size, the guide is set to that size and, the extending :nds of the stop member being contiguous to the scale,
  • the guide may be very accurately positioned and locked against the top face of the platform so that there is no possibility of the paper slipping under the stop at any point.
  • the guide assembly is somewhat T-shaped in plan and comprises a body portion 62 having a stop member 64 disposed normal thereto and extending outwardly from its side edges, the stop member having an upright face forming a stop surface 66 with a blade-like protrusion 68 extending outwardly therefrom along its lower edge.
  • Paper is butted against the stop surface 66 and is precluded from shifting under the guide by blade-like protrusion 68.
  • a pair of axially-aligned spaced legs 70 and 72 depends from the lower surfaces of protrusion 68 and body portion 62, respectively, the legs being slidably receivable in a slot 74 provided in the upper surface of platform 2 and disposed normal to stationary cutting blade 8.
  • Releasable locking means is provided for locking the guide assembly against movement relative to the platform and includes a slidable wedge 76 depending from a small housing 78 on the lower surface of body portion 62, the wedge being movable into and out of axial alignment with a leg 80 which depends from a cover 78 of housing 78, the leg 80 itself being aligned with the legs 70 and 72 depending from the protrusion and body portion respectively.
  • movement of wedge 76 is effected by rotation of a finger lever 82 having a vertically disposed central semi-circular shaft 84, pivotally mounted in body portion 62 and extending into small housing 78 for contact with a base 86 on which the wedge is mounted, the base being spring-loaded by means of a compression spring 88.
  • shaft 84 pivots relative to an abutment member disposed within housing 78 wherefore base 86 and wedge 76 are urged forwardly against the action of spring 88 to bring the wedge into alignment with leg 80 whereupon the guide assembly may be slid freely relative to slot 74 in the platform.
  • a trimming board a rectangular platform having a plane top face and a vertically-disposed metal cutting edge along one side thereof, a cutting knife pivoted to the platform near one end of the cutting edge, a straight edge abutment running along one side of the platform at right angles to the cutting edge, a slot in the plane top face of the platform extending in a direction away from the cutting edge, a guide assembly slidably disposed in the slot in the platform and having a stop portion facing the cutting edge against which one edge of a paper sheet may extend, a releasable lock for locking the guide means within the slot, a finger guard overlying the cutting edge and a releasable lock for releasably locking one end of the finger guard relative to the platform.
  • the finger guard comprises a sloping wall extending angularly upwardly from the cutting edge and merging at its upper end with an overhanging horizontal wall disposed in spaced parallelism to the platform.
  • the releasable lock for locking one end of the finger guard relative to the platform is a spring-loaded pin on the finger guard, the pin having a foot selectively engageable in an opening in the platform.
  • the releasable lock for locking the guide means comprises a spring-loaded wedge selectively movable into and out of axial alignment with a stationary member OI the guide means, the wedge and stationary membe being receivable in a slot in the platform.
  • a trimming board in a trimming board according to claim 1, includ ing a carrier on which the cutting knife is mounted an( a releasable lock for securing the carrier to the plat form, the releasable lock being pivoted to the carrie: and rotatable between an exposed locking position ant a concealed non-locking position between the cutting blade and carrier.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Details Of Cutting Devices (AREA)
US00312319A 1972-12-05 1972-12-05 Paper trimmer Expired - Lifetime US3792636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31231972A 1972-12-05 1972-12-05

Publications (1)

Publication Number Publication Date
US3792636A true US3792636A (en) 1974-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00312319A Expired - Lifetime US3792636A (en) 1972-12-05 1972-12-05 Paper trimmer

Country Status (4)

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US (1) US3792636A (it)
JP (1) JPS4988186A (it)
CA (1) CA983842A (it)
IT (1) IT1002050B (it)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991922A (en) * 1975-09-18 1976-11-16 Martin Mervin B Abrasive sheet measuring and cutting board
US5249495A (en) * 1992-08-24 1993-10-05 Renk Ronald D Shingle cutter apparatus
US5320011A (en) * 1992-10-09 1994-06-14 Martin Yale Industries, Inc. Safety device latch for a paper cutter
USD386663S (en) * 1996-08-29 1997-11-25 Kehres Gregory L Vinyl siding cutter
USD391822S (en) 1997-03-24 1998-03-10 Applebaum Richard M Photograph cutter
EP0813936A3 (en) * 1996-06-21 1999-02-03 Martin Yale Industries, Incorporated Paper cutter apparatus and method of operating the same
USD409651S (en) * 1998-08-24 1999-05-11 Quartet Manufacturing Company Paper cutter
USD477017S1 (en) 2002-07-01 2003-07-08 Acme United Corporation Guillotine style paper trimmer
US20040221705A1 (en) * 2002-07-01 2004-11-11 Acme United Corporation Guillotine style paper trimmer
US20040237745A1 (en) * 2003-02-14 2004-12-02 Hunt Holdings, Inc. Paper cutter with self-supporting cutting arm secured by snap ring
US20050087053A1 (en) * 2003-10-22 2005-04-28 Yu Chang C. Paper trimmer having safety locking device
US20050199114A1 (en) * 2004-03-11 2005-09-15 Tzu-Feng Tseng Cutting apparatus with alignment marker
EP1612008A1 (en) * 2004-06-28 2006-01-04 Carl Manufacturing Co., Ltd. Sheet cutter
US7059227B2 (en) 2002-07-18 2006-06-13 Carl Manufacturing Co., Ltd. Paper abutted ruler
US20060137971A1 (en) * 2002-07-01 2006-06-29 Larry Buchtmann Method for coating cutting implements
US20060201003A1 (en) * 2001-11-13 2006-09-14 Larry Buchtmann Coating for cutting implements
US20060213348A1 (en) * 2005-03-23 2006-09-28 Bernd Loibl Cutting unit
US20070062357A1 (en) * 2005-09-21 2007-03-22 Pedrys Lisa M Paper cutting device
US20070144015A1 (en) * 2005-11-08 2007-06-28 Peterson Michael E Mechanically assisted scissors
US20070186421A1 (en) * 2001-11-13 2007-08-16 Larry Buchtmann Coating for cutting implements
US20070214661A1 (en) * 2002-10-28 2007-09-20 Peterson Michael E Pencil-sharpening device
US20080178477A1 (en) * 2006-12-19 2008-07-31 Acme United Corporation Cutting Instrument
CN103085095A (zh) * 2012-12-30 2013-05-08 建新赵氏集团有限公司 汽车密封条裁剪装置
USD1065316S1 (en) * 2023-07-08 2025-03-04 Ningbo Jielisi Stationery Co., Ltd. Paper cutter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254374A (en) * 1939-07-20 1941-09-02 Laukhuff Alfred Cutting machine
US3089373A (en) * 1960-08-03 1963-05-14 Bradley Milton Co Paper trimmer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2254374A (en) * 1939-07-20 1941-09-02 Laukhuff Alfred Cutting machine
US3089373A (en) * 1960-08-03 1963-05-14 Bradley Milton Co Paper trimmer

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991922A (en) * 1975-09-18 1976-11-16 Martin Mervin B Abrasive sheet measuring and cutting board
US5249495A (en) * 1992-08-24 1993-10-05 Renk Ronald D Shingle cutter apparatus
US5320011A (en) * 1992-10-09 1994-06-14 Martin Yale Industries, Inc. Safety device latch for a paper cutter
EP0813936A3 (en) * 1996-06-21 1999-02-03 Martin Yale Industries, Incorporated Paper cutter apparatus and method of operating the same
USD386663S (en) * 1996-08-29 1997-11-25 Kehres Gregory L Vinyl siding cutter
USD391822S (en) 1997-03-24 1998-03-10 Applebaum Richard M Photograph cutter
USD409651S (en) * 1998-08-24 1999-05-11 Quartet Manufacturing Company Paper cutter
US8245407B2 (en) 2001-11-13 2012-08-21 Acme United Corporation Coating for cutting implements
US7913402B2 (en) 2001-11-13 2011-03-29 Acme United Corporation Coating for cutting implements
US20080016703A1 (en) * 2001-11-13 2008-01-24 Larry Buchtmann Coating for cutting implements
US20070186421A1 (en) * 2001-11-13 2007-08-16 Larry Buchtmann Coating for cutting implements
US20060201002A1 (en) * 2001-11-13 2006-09-14 Larry Buchtmann Coating for cutting implements
US20060201003A1 (en) * 2001-11-13 2006-09-14 Larry Buchtmann Coating for cutting implements
US20060137971A1 (en) * 2002-07-01 2006-06-29 Larry Buchtmann Method for coating cutting implements
USD477017S1 (en) 2002-07-01 2003-07-08 Acme United Corporation Guillotine style paper trimmer
US20040221705A1 (en) * 2002-07-01 2004-11-11 Acme United Corporation Guillotine style paper trimmer
US7059227B2 (en) 2002-07-18 2006-06-13 Carl Manufacturing Co., Ltd. Paper abutted ruler
US20070214661A1 (en) * 2002-10-28 2007-09-20 Peterson Michael E Pencil-sharpening device
US7934319B2 (en) 2002-10-28 2011-05-03 Acme United Corporation Pencil-sharpening device
US20040237745A1 (en) * 2003-02-14 2004-12-02 Hunt Holdings, Inc. Paper cutter with self-supporting cutting arm secured by snap ring
US20050087053A1 (en) * 2003-10-22 2005-04-28 Yu Chang C. Paper trimmer having safety locking device
US20050199114A1 (en) * 2004-03-11 2005-09-15 Tzu-Feng Tseng Cutting apparatus with alignment marker
EP1612008A1 (en) * 2004-06-28 2006-01-04 Carl Manufacturing Co., Ltd. Sheet cutter
US20090126547A1 (en) * 2005-03-23 2009-05-21 Bernd Loibl Cutting unit
US20060213348A1 (en) * 2005-03-23 2006-09-28 Bernd Loibl Cutting unit
US20070062357A1 (en) * 2005-09-21 2007-03-22 Pedrys Lisa M Paper cutting device
US20070144015A1 (en) * 2005-11-08 2007-06-28 Peterson Michael E Mechanically assisted scissors
US20080178477A1 (en) * 2006-12-19 2008-07-31 Acme United Corporation Cutting Instrument
CN103085095A (zh) * 2012-12-30 2013-05-08 建新赵氏集团有限公司 汽车密封条裁剪装置
USD1065316S1 (en) * 2023-07-08 2025-03-04 Ningbo Jielisi Stationery Co., Ltd. Paper cutter

Also Published As

Publication number Publication date
CA983842A (en) 1976-02-17
IT1002050B (it) 1976-05-20
JPS4988186A (it) 1974-08-23

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