WO1999058305A1 - Massicot compact - Google Patents

Massicot compact Download PDF

Info

Publication number
WO1999058305A1
WO1999058305A1 PCT/US1998/010086 US9810086W WO9958305A1 WO 1999058305 A1 WO1999058305 A1 WO 1999058305A1 US 9810086 W US9810086 W US 9810086W WO 9958305 A1 WO9958305 A1 WO 9958305A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
cutting
cutting edge
housing
axle
Prior art date
Application number
PCT/US1998/010086
Other languages
English (en)
Inventor
Phillip B. Daley, Jr.
Original Assignee
Hunt Holdings, Inc.
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 Hunt Holdings, Inc. filed Critical Hunt Holdings, Inc.
Priority to CA002292565A priority Critical patent/CA2292565A1/fr
Priority to AU73905/98A priority patent/AU7390598A/en
Publication of WO1999058305A1 publication Critical patent/WO1999058305A1/fr

Links

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
    • B26D1/14—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 circular cutting member, e.g. disc cutter
    • B26D1/20—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 circular cutting member, e.g. disc cutter coacting with a fixed member
    • B26D1/205—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 circular cutting member, e.g. disc cutter coacting with a fixed member for thin material, e.g. for sheets, strips or the like

Definitions

  • This invention relates to devices for cutting and trimming paper and especially to devices which cut by shearing the paper between two cutting edges.
  • a common paper cutter found in many offices and businesses is known as the "guillotine" style cutter and comprises a board having a fixed cutting edge mounted on the board and a pivoting blade mounted on the board adjacent to the fixed cutting edge.
  • the pivoting blade can be raised and lowered manually relative to the board via a handle positioned opposite the pivot point of the blade. Paper to be cut is placed on the board overlying the fixed cutting edge with the blade in the raised position, and the blade is then lowered, the blade cooperating with the fixed cutting edge to shear the paper.
  • Guillotine-style paper cutters although effective, have several disadvantages. Such cutters are intended to perform relatively heavy-duty cutting tasks and, therefore, tend to be relatively large, heavy and expensive. Both the blade and cutting edge are made entirely of metal to provide adequate stiffness and strength for cutting more than a few sheets of paper. The blade is constantly exposed presenting a risk of injury, and the method of cutting, i.e., raising and lowering an exposed blade through an arc of several inches, is inherently dangerous. The large size and inherent risk associated with the guillotine-style paper cutter make such devices inappropriate for light-duty cutting, such as performed in the home, in a photographic studio or in many offices.
  • a compact trimmer according to the invention comprises a cutting board which lends itself to embodiment in small lightweight form.
  • the cutting board has an upper surface for supporting sheet material to be cut, and a first cutting edge extending lengthwise along one side.
  • An elongated guide member substantially overlies the first cutting edge.
  • the guide member is spaced above the upper surface, thus allowing sheet material to pass between the guide member and the upper surface and overlie the first cutting edge.
  • a housing having means for engaging the guide member is movably supported on the guide member and capable of sliding motion lengthwise along it and the first cutting edge.
  • the housing has a sidewall positioned in a spaced-apart relationship outwardly of the first cutting edge.
  • a cutting blade which has a second cutting edge, is mounted within the housing between the first cutting edge and the sidewall, a portion of the second cutting edge being in overlapping engagement with the first cutting edge.
  • the blade cooperates with the first cutting edge to cut or trim sheet material, such as paper, which is positioned on the board overlying the first cutting edge.
  • sheet material is sheared between the second cutting edge and the first cutting edge when the housing is moved along the guide member.
  • the blade portion is held in overlapping engagement against the first cutting edge by means of a biasing assembly disposed between the blade and the housing sidewall.
  • the cutting blade is circular and is rotatably mounted within the housing about an axis of rotation through the center of the blade.
  • the second cutting edge extends circumferentially of the blade.
  • the biasing assembly preferably comprises a hub having a shoulder upon which the blade is supported.
  • the hub has a cavity centered on the axis of rotation of the blade and facing the sidewall.
  • the cavity contains a biasing member which extends outwardly to engage the facing sidewall producing biasing forces which react against the sidewall to keep the second cutting edge against the first cutting edge.
  • the biasing member comprises a spring and ball, the spring being housed within the cavity and the ball overlying the spring and extending partially from the cavity to engage the facing sidewall of the housing.
  • Figure 1 is an isometric view of a compact trimmer according to the invention
  • Figure 2 is a plan view of the trimmer shown in Figure 1;
  • Figure 3 is a sectional view on an enlarged scale taken along line 3-3 of Figure 1;
  • Figure 4 is a sectional view taken along line 4-4 of Figure 3 ; and Figure 5 is an exploded isometric view of a detail of the trimmer shown from below.
  • FIG 1 is an isometric view of a compact trimmer 10 according to the invention.
  • Trimmer 10 comprises a cutting board 12 which provides an upper surface 14 upon which to place sheet material such as paper, photographs and the like for cutting or trimming.
  • Board 12 preferably has indicia 16 displayed thereon to aid in the alignment of the sheet material and insure precise, measured cutting.
  • One or more raised shoulders 18 are formed adjacent to upper surface 14 to provide a convenient edge against which the sheet material can be squarely aligned with respect to the cutting first cutting means described below.
  • board 12 is injection molded from plastic material such as a high impact styrene which allows for a strong, stiff but lightweight design.
  • plastic material such as a high impact styrene which allows for a strong, stiff but lightweight design.
  • ABS plastic is a suitable material.
  • a first cutting means in the form of a rectilinear cutting edge 20 is arranged lengthwise along a first side of board 12.
  • Figures 3 and 4 show a preferred embodiment of cutting edge 20, formed as an edge of an elongated member 22, preferably a metal strip of stainless steel.
  • Elongated member 22 is mounted flush with upper surface 14 and preferably attached to board 12 by means of screws 24 ( Figure 3) .
  • First cutting edge 20 extends clear of board 12 as best shown at 26 in the cross sectional view of Figure 3.
  • Figures 1, 2 and 3 show a preferred guide means, an elongated guide member 28 mounted on board 12, substantially overlying elongated member 22.
  • guide member 28 includes a guide rail 30 extending upward from the guide member.
  • guide rail 30 includes a relatively wide head 30a supported on a narrow upright 30b thus giving the guide rail a "T" shaped cross section further described below.
  • Guide member 28 is preferably molded from a transparent styrene and is attached to board 12 by any suitable means such as by inserting tabs (not shown) projecting from its ends into slots (not shown) formed in raised portions 32 of board 12 located adjacent to each end of guide member 28 and seen in Figures 1 and 2.
  • Guide member 28 should be positioned to be spaced above upper surface 14 and elongated member 22, and rail 30 should extend beyond the shoulders 18 to the positions marked "A" for reasons explained below.
  • Figures 1 and 5 show a blade housing 34 for mounting a second cutting means, the second cutting means being a blade and preferably a circular cutting blade 36.
  • the housing has means 38 for engaging guide rail 30 for sliding motion along the length of guide member 28.
  • rail engaging means 38 preferably comprises two pairs of spaced flanges 40a and 40b defining a pair of spaced apart "T" shaped apertures 42 through which guide rail 30 extends, thereby constraining housing 34 to move linearly along a predetermined path defined by the guide rail, all other motions being prevented.
  • Housing 34 is preferably molded from ABS plastic material and has raised gripping segments 44 to facilitate manual gripping to effect the sliding motion.
  • Rail engaging means 38 further comprises standoffs 41 which extend downwardly from housing 34 as seen in Figures 3 and 5. Standoffs 41 are preferably he i- cylindrical in shape and serve to space the lower portion of the housing away from elongated guide member 28 in order to reduce friction between the two components during relative motion.
  • Cutting blade 36 is preferably a rotary cutting blade made of steel, 12L-14 being preferred due to its ready machinability .
  • the blade has a circular shape and a second cutting edge 46 is disposed about its circumference.
  • Blade 36 is rotatably mounted within housing 34 on an axle 48 oriented perpendicularly to guide rail 30.
  • Axle 48 rides in two bearings 50, preferably integrally molded within housing 34 and flanking guide rail 30, as best seen in cross section in Figure 3.
  • Blade 36 is supported on a shoulder 52 extending from axle 48.
  • the blade is preferably staked onto the shoulder, the staking preventing it from rotating independently of axle 48.
  • axle 48 is positioned coaxially on axle 48 between bearings 50.
  • Collar 54 engages the top of guide rail 30 when housing 34 is moved along guide member 28. Frictional forces between the collar and the guide rail cause the axle to turn as the housing moves relative to the guide rail, the arrangement functioning as a toothless rack and pinion.
  • axle 48 is made of metal and collar 54 is of a resilient material having a relatively high coefficient of friction, such as rubber, to provide for positive frictional contact between the collar and the rail as well as the collar and the axle.
  • Blade 36 is mounted adjacent to and aligned parallel to first cutting edge 20 with a portion 56 of second cutting edge 46 in overlapping engagement with first cutting edge 20, as seen in Figure 3. Because the blade overlaps the first cutting edge, it is necessary to provide positions, denoted "A" at either or preferably both ends of guide member 28 wherein guide rail 30 extends beyond the boundary of upper surface 14 marked by shoulders 18. When housing 34 is in either position marked "A", blade 36 does not obstruct the gap 58 (seen in Figure 3) between guide member 28 and elongated member 22 at any point along upper surface 14. This allows sheet material to be positioned anywhere on upper surface 14 in overlying relation with first cutting edge 20 without the need to pivot guide member 28 out of the way as required for other trimmers.
  • biasing means for biasing blade 36 against first cutting edge 20, thus keeping the overlapping blade portions in contact.
  • the biasing means is preferably in the form of biasing assembly 60 (see Figures 3 and 5) , which extends from axle 48 and is interposed between blade 36 and a sidewall 62 of housing 34. Sidewall 62 is spaced outwardly from blade 36 on the side of the blade facing away from the first cutting edge 20, thus, providing a stiff structure against which to react the biasing forces of biasing assembly 60.
  • biasing assembly 60 preferably comprises a hub 64 extending from axle 48 and disposed between blade 36 and housing sidewall 62.
  • Hub 64 has a cavity 68 preferably centered on the axis of rotation 70 of blade 36 as defined by axle 48.
  • Cavity 68 contains a biasing member, preferably comprising a coil spring 72 and a ball 78, made of steel for durability.
  • Spring 72 resides within cavity 68 and ball 78 overlies the spring and extends partially out of the cavity, as seen in Figure 3.
  • Spring 72 forces ball 78 against housing sidewall 62, which serves as a reaction point for the spring, forcing blade 36 into overlapping interengagement against first cutting edge 20.
  • Axle 48 is free to slide laterally in bearings 50 to ensure that spring 72 and ball 78 provide effective biasing action to keep the cutting edges engaged.
  • Ball 78 is sized to fit easily within cavity 68 and its spherical shape insures that it will not cause the axle to bind or lock and prevent rotation of the axle and rotary blade.
  • sheet material for example, paper
  • the operator can align the paper using shoulders 18 and/or the indicia 16 for precision cutting.
  • housing 34 is located at either position marked "A" on guide member 28 so that blade 36 does not interfere with the placement of the paper on the upper surface.
  • the operator grips housing 34 and slides it along guide member 28.
  • collar 54 frictionally engages the top of rail 30 and forces blade 36 to turn via axle 48. Blade 36 encounters the portion of the paper overlying first cutting edge 20 and the paper is sheared apart between the second cutting edge 46 and the first cutting edge 20.
  • the compact trimmer according to the invention is designed to fill a multi-purpose role, but is particularly suited to light duty, cutting up to five sheets of paper safely, cleanly and precisely.
  • Components such as the board, housing and guide member are preferably molded from plastic material, thus, providing relatively high strength and stiffness and light weight.
  • Metal is preferably used for the cutting edges, the axle, spring and ball for durability.
  • the combination of materials and compact design provides a trimmer which is safe and easy to use and readily affordable.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

Cette invention concerne un massicot compact (10) qui comprend un plateau (12) avec une surface (14) de support de feuilles, ainsi qu'un bord de coupe fixe (20) qui est monté le long d'un côté de ladite surface. Un rail de guidage (30) est monté sur le plateau de manière à recouvrir globalement le bord de coupe fixe, un boîtier (34) venant s'insérer par coulissement sur le rail. Une lame de coupe (36) rotative et circulaire est montée sur un axe (48) dans le boîtier de manière à pouvoir entrer en rotation, lequel axe est perpendiculaire au rail de guidage. Une bague (54) montée sur l'axe entre en contact avec le rail de guidage et fait tourner ledit axe ainsi que la lame lorsque le boîtier se déplace le long dudit rail. Une partie de la lame de coupe est poussée par un système de pression (60) situé dans le boîtier de manière à entrer en contact par chevauchement avec le bord de coupe fixe. Le système de pression comprend un ressort (72) ainsi qu'une bille (78) qui est logée dans une cavité (68) pratiquée dans un moyeu (64). La bille est disposée sur le ressort à l'intérieur de la cavité et dépasse partiellement de celle-ci pour entrer en contact avec la paroi latérale (62) du boîtier.
PCT/US1998/010086 1998-05-12 1998-05-14 Massicot compact WO1999058305A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002292565A CA2292565A1 (fr) 1998-05-12 1998-05-14 Massicot compact
AU73905/98A AU7390598A (en) 1998-05-12 1998-05-14 Compact trimmer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7809598A 1998-05-12 1998-05-12
US09/078,095 1998-05-12

Publications (1)

Publication Number Publication Date
WO1999058305A1 true WO1999058305A1 (fr) 1999-11-18

Family

ID=22141879

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/010086 WO1999058305A1 (fr) 1998-05-12 1998-05-14 Massicot compact

Country Status (3)

Country Link
AU (1) AU7390598A (fr)
CA (1) CA2292565A1 (fr)
WO (1) WO1999058305A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2410716A (en) * 2004-02-06 2005-08-10 Primax Electronics Ltd Trimming device having a plurality of rotatably mounted trimming elements
EP1683614A1 (fr) * 2005-01-19 2006-07-26 Carl Manufacturing Co., Ltd. Dispositif de coupe pour papier
US8132490B2 (en) 2007-06-26 2012-03-13 Acme United Corporation Rotary trimmer

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624408A (en) * 1947-11-25 1953-01-06 Elmer L Stein Sheet trimmer
US3222972A (en) * 1963-04-08 1965-12-14 Reynolds Metals Co Dispenser for coiled sheet material
US3582018A (en) * 1969-01-21 1971-06-01 Bendix Corp An aircraft instrument including pendulous member limited in movement by a self-restoring energy absorbing stop
US3686991A (en) * 1969-02-20 1972-08-29 Ricoh Kk Apparatus for cutting a sheet material
US3958477A (en) * 1972-05-25 1976-05-25 Carlson Richard L Flat stock cutter
US4383458A (en) * 1980-03-05 1983-05-17 Dainippon Screen Seizo Kabushiki Kaisha Film cutter
US4665787A (en) * 1984-08-18 1987-05-19 International Business Machines Corporation Cutting device for paper and foil webs, particularly for printers, plotters, copiers and similar machines
US5307716A (en) * 1991-11-29 1994-05-03 Onishilite Industry Co., Ltd. Sheet material cutting device
US5431077A (en) * 1992-07-14 1995-07-11 Nec Corporation Paper cutting device using a movable cutting wheel
US5503053A (en) * 1994-08-18 1996-04-02 Onishilite Industry Co., Ltd. Sheet material cutting device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624408A (en) * 1947-11-25 1953-01-06 Elmer L Stein Sheet trimmer
US3222972A (en) * 1963-04-08 1965-12-14 Reynolds Metals Co Dispenser for coiled sheet material
US3582018A (en) * 1969-01-21 1971-06-01 Bendix Corp An aircraft instrument including pendulous member limited in movement by a self-restoring energy absorbing stop
US3686991A (en) * 1969-02-20 1972-08-29 Ricoh Kk Apparatus for cutting a sheet material
US3958477A (en) * 1972-05-25 1976-05-25 Carlson Richard L Flat stock cutter
US4383458A (en) * 1980-03-05 1983-05-17 Dainippon Screen Seizo Kabushiki Kaisha Film cutter
US4665787A (en) * 1984-08-18 1987-05-19 International Business Machines Corporation Cutting device for paper and foil webs, particularly for printers, plotters, copiers and similar machines
US5307716A (en) * 1991-11-29 1994-05-03 Onishilite Industry Co., Ltd. Sheet material cutting device
US5431077A (en) * 1992-07-14 1995-07-11 Nec Corporation Paper cutting device using a movable cutting wheel
US5503053A (en) * 1994-08-18 1996-04-02 Onishilite Industry Co., Ltd. Sheet material cutting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2410716A (en) * 2004-02-06 2005-08-10 Primax Electronics Ltd Trimming device having a plurality of rotatably mounted trimming elements
US6990884B2 (en) 2004-02-06 2006-01-31 Primax Electronics Ltd. Vertical rotary multi-functional trimming apparatus
GB2410716B (en) * 2004-02-06 2007-08-22 Primax Electronics Ltd Vertical rotary multi-functional trimming apparatus
EP1683614A1 (fr) * 2005-01-19 2006-07-26 Carl Manufacturing Co., Ltd. Dispositif de coupe pour papier
US8132490B2 (en) 2007-06-26 2012-03-13 Acme United Corporation Rotary trimmer

Also Published As

Publication number Publication date
AU7390598A (en) 1999-11-29
CA2292565A1 (fr) 1999-11-18

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