GUIDED CUTTING SYSTEM

Abstract: A guided cutting system including first and second blade cartridges (10, 10') which are used in association with templates (12). The blade cartridges (10, 10') each include a head portion (14) and cover portion (16) wherein the head portion (14) includes a cutting blade (32) and a pair of guide pegs (24) which are adapted to be received within a peripheral groove (84) formed on a template (12). The cover portion (16) is adapted to be attached to the head portion (14) whereby the cover portion (16) acts as a handle for guiding the head portion (14) during a cutting operation and to cover and prevent contact with the cutting blade (32) when not in use. A different spacing is provided between the cutting blade (32) and guide pegs (24) whereby one head portion may be used for crapping a photograph and the other head portion may be used for cutting a corresponding backing mat for the photograph. In addition, the templates (12) for use with the blade cartridges (10, 10') may be designed with a predetermined outer and inner periphery extending around an open interior area (78) of the template (12) wherein guide grooves (84) for the guide pegs (24) are provided adjacent to the exterior and interior periphery for guiding the blade cartridges (10, 10') along exterior and interior guide paths.

Description: GUIDED CUTTING SYSTEM Background of the Invention The present invention is related generally to a cutting system for cutting sheet material and. more particularly, to a guided cutting system for cutting predetermined shapes out of sheet material, such as photographs and mat material, for use in photograph scrapbooking applications. In order to provide an attractive presentation of photos in a scrapbook. the photos are often cut or cropped, cutting away a peripheral area of the photo and leaving a central main subject portion of the photo. Cropping of photos provides an attractive border area for the photo wherein the photo may be cropped in a circular, oval or wavy peripheral edge, and additionally may be provided with a mat which underlies the photo and extends beyond the edges thereof for enhancing the framing of the picture on a scrapbook page. Typically, the mat is made such that it mirrors and extends beyond the peripheral edge of the cropped photo in order to provide a uniform edge border around the photo. Various devices have been proposed to facilitate the cropping operation including special scissors having wavy or deckled edges, and guided cutters such as the one disclosed in U.S. Patent No. 701,828 to Arnold which incorporates a guide plate for guiding an arm movably supported on the plate to direct a cutting blade in a desired pattern for cutting a mat. Other known guided cutting devices for cutting circles or ovals in a sheet of material include those incorporating a so called "Scottish yoke " mechanism which utilizes a base member supporting a pivoted arm and including two transversely oriented axes for guiding the arm in a controlled elliptical path. Alternatively, the arm may be held in a central location of intersection between the two paths whereby the arm may be pivoted in a circular movement. Typical examples of such devices are shown in U.S. Patent No. 5.233.748 to Logan et al. and in U.S. Patent No. 5,555.631 to Houston. While the known devices for cutting ovals and circles provide the desired results of accurately following a desired shape, such devices are typically complex in that they require assembly of several parts and also are generally not well adapted to convenient storage and transportation in that they incorporate an elongated arm connected to and extending Irom a base, such that they are not adapted to compact storage, a desirable attribute for equipment used b\ those involv ed in scrapbooking Accordingly . there is a need for an apparatus which facilitates cutting of ovals, circles and other shapes in sheet material and which requires a minimum of parts with accompanv ing reduced cost In addition, there is a need for such an apparatus wherein a cutter is prov ided hav ing means for protecting a user from contact with a cutting portion of the cutter when it is not in use Summary of the Invention In accordance with the present inv ention, a guided cutting sy stem is prov ided including first and second blade cartridges, each blade cartridge including a head poπion and a cov er portion detachablv mountable to the head portion In addition, a template is provided having at least one groove for guiding a selected one of the blade cartridges in a predetermined cutting path to thereby cut a predetermined pattern in a substrate underlying the template The head portion of each blade cartridge includes a cutting end and a non-use end. and a side wall extending between the cutting end and the non-use end The cutting end includes a cutting blade supported withm a blade holder and a pair of spaced pegs forming guide means for positioning within the groov e of the template The blade of the first blade cartridge is located a first predetermined distance from the guide pegs thereof, and the blade of the second cartridge is located a second predetermined distance from the guide pegs thereof wherein the second predetermined distance is greater than the first predetermined distance Thus, the first blade cartridge may be used to cut a desired outline in a photo, and the second blade cartridge may be used to cut a corresponding shape in a mat wherein the size of the mat is greater than that of the photo such that the present cutting system provides a matching border for a cropped photo The cover portion includes a side wall defining opposing ends wherein a peripheral edge at one end defines an open end. and an end wall at an opposing end defines a closed end for the cover portion The side wall defines an inner surface dimensioned to receive and engage the side wall of the head portion The head portion and cover portion are configured such that the cover portion is mountable over the non-use end of the head portion to thereby define a handle portion for a person to grasp the blade cartridge and guide it around the template, and the cover portion is also mountable over the cutting end of the head portion for providing a guard to prevent contact with the cutting blade when the blade cartridge is not in use. The template may be provided with an open interior area defined by an inner peripheral edge wherein a first groove is provided adjacent to an outer peripheral edge of the template and a second groove is provided adjacent to the inner peripheral edge of the template. In this manner, a single template may be used for creating large or small cuts depending on whether the blade cartridge is guided around the outer periphery or inner periphery, respectively. Therefore, it is an object of the present invention to provide a guided cutting system including a blade cartridge capable of being hand guided around a template. It is a further object of the invention to provide a blade cartridge wherein a cover portion is provided for attachment to either one of two opposing ends of a blade carrying head portion. It is yet another object of the invention to provide a guided cutting system including two similarly constructed blade cartridges adapted to be guided around a periphery of a template and to provide a predetermined size differential for a pattern being cut. It is an additional object of the invention to provide a guided cutting system wherein a template is provided having an open interior area and including outer and inner peripheral grooves to guide a blade cartridge to cut different size patterns. Other objects and advantages of the invention will be apparent from the following description and the accompanying drawings. Brief Description of the Drawings Fig. 1 is an exploded perspective view of a first blade cartridge for the guided cutting system of the present invention: Fig. 2 is an exploded perspective view of a second blade caπridge for the guided cutting system of the present invention: Fig. 3 is a side elevational view of the first blade cartridge in a use configuration; Fig. 4 is a side elevational view of the first blade cartridge in a non- use configuration; Fig. 5 is a bottom plan view of the head portion of the first blade cartridge with the cutting blade removed; Fig. 6 is a bottom plan view of the head portion of the second blade cartridge with the cutting blade removed; Fig. 7 is a side elevational view of the head portion of the first blade caπridge; Fig. 8 is a perspective view of a cover portion for the first blade cartridge; Fig. 9 is a bottom plan view of the cover portion of Fig. 8; Fig. 10 is a perspective view of a cover portion for the second blade cartridge; Fig. 1 1 is a bottom plan view of the cover portion of Fig. 10; Fig. 12 is a perspective view of the first blade cartridge in position for use along an outer peripheral path of an oval template; Fig. 13 is a cross-sectional view of the template of Fig. 12: Fig. 14 is a bottom plan view of the template of Fig. 12; Fig. 15 is a perspective view of the first blade cartridge in position for use along an inner peripheral path of a circular template: and Fig. 16 is a plan view of an alternative template for cutting straight and wavy edges. Detailed Description of the Preferred Embodiment Referring to Figs. 1. 2 and 12. the guided cutting system of the present invention includes first and second blade cartridges 10 and 10'. respectively, and a template 12 for guiding the plate cartridges 10, 10' in a predetermined cutting path. The first and second blade cartridges 10, 10' are formed with the same structural elements which will be described with particular reference to the first blade cartridge 10 wherein the elements of the second blade cartridge 10' corresponding to the first blade cartridge are labeled throughout the drawings with the same reference numeral primed, and only differences between the first and second blade cartridges 10. 10' are specifically described in the following description. As seen in Figs. 1. 3 and 4 the blade cartridge 10 comprises a head portion 14 and a cover portion 16 which is configured to be detachably mounted to the head portion 14. The head portion 14 is formed with a cutting end 18 and a non- use end 20. and a generally cylindrical side wall 22 extends axially between the cutting end 18 and non-use end 20. The cutting end 18 includes a pair of spaced guide pegs 24. 26 extending axially from the surface of the cutting end 18 to define guide means for engaging the template 12 to guide the blade cartridge 10 during a cutting operation. The cutting end 18 further includes an elongated blade aperture 28 for receiving an assembly comprising a blade holder 30 and cutting blade 32 positioned within the holder 30. It should be noted that the cutting blade 32 includes a pair of cutting edges 34. 36 converging to a central point whereby the blade cartridge 10 may be directed in either one of two directions to cut a substrate underlying a template 12. Referring to Figs. 5 and 7. the cutting head 14 is shown without the blade holder 30 and blade 32 in position, and can be seen to include a pair of diametrically opposed gripping portions 36. 38 defining raised sectors extending radially outwardly from the side wall 22, each gripping portion 36, 38 including a pair of radially extending side surfaces 40. 42 and an outer surface defining ribs 55. The gripping portions 36. 38 further include opposing axial ends which are substantially contiguous with the surfaces of the cutting end 18 and non-use end 20. It should also be noted that the side walls 40 of each of the gripping portions 36, 38 include a hole or recess 44 (only one shown) located adjacent to the non-use end 20 of the head portion 14. and the side surfaces 42 of each of the gripping portions 36, 38 include a hole or recess 46 (only one shown) adjacent the cutting end 18 of the head portion 14. As seen in Fig. 5. a line 48 passing through the guide pegs 24. 26 is located in spaced relation to a diametrical center C of the head portion 14 and is perpendicularly bisected by a bisecting line 50 passing through the diametrical center C. The blade aperture 28 is located on an opposite side of the center C of the head portion 14 from the line 48 and is intersected by and centered on the bisecting line 50. The blade 32 supported within the blade aperture 28 is supported a predetermined distance X from the guide pegs 24. 26. as measured to the line 48. The distance between the guide pegs 24. 26 and the blade 32 supported within the blade aperture 28 defines the particular predetermined distance that the blade 32 will be positioned from the edge of a guiding template 12 to thereby define the size of cut to be made on an underlying substrate. Referring further to Fig. 6. a head portion 14' for the second blade cartridge 10' is shown and differs from the first head portion 14 in that the distance X' of the blade aperture 28' from the guide pegs 24'. 26' is greater than the distance X for the first head portion 14. Thus, the blade cartridge 10' incorporating the second head portion 14' will perform a cut at a second, greater predetermined distance from the edge of a template 12 used to guide the blade cartridges 10. 10'. Accordingly, the blade cartridge 10 incorporating the first head portion 14 may be guided around an outer peripheral edge of the template 12 to cut out a portion of a photograph, while the blade cartridge 10' incorporating the second head portion 14' may be used to cut out a background mat having a larger periphery than the cropped photograph. Referring to Figs. 8-1 1. the cover portion 16 includes a generally cylindrical side wall 52 including a plurality of circumferential ribs 54 which facilitate gripping the cap portion 16. The side wall 52 defines an inner surface 56 of the cap portion 16 for engaging the side wall 22 of the head portion 14. The side wall 52 of the cover portion 16 includes a peripheral edge 58 defining an open end for the cover portion 16. and further includes an end wall 60 defining a closed end for the cover portion 16. A pair of diametrically opposed channels 62. 64 (see also Fig. 1) extend inwardly from the peripheral edge 58. Each of the channels 62. 64 includes an inner edge 66. and opposed first and second side edges 68. 70. The inner edges 66 are adapted to engage against the axial ends of the gripping portions 36, 38. and the side edges 68. 70 are adapted to engage the side surfaces 40. 42 of the head portion 14. The edges 68 each include a locking member comprising a tab 72 for engaging within the recesses 44. 46 defined in the side surtaces 40 42 of the head portion 14 to thereby lock the cov er poπion 16 in position on the head portion 14 Referring to Figs 8 and 10 it should be noted that the caps 16, 16' used in association with the head portions 14 and 14 are substantially the same with the exception of the construction of the end walls 60 and 60' In particular, as seen in Fig 8. the end wall 60 of the cap 16 includes a pair of spaced, elongated grooves 61 63 wherem the groov es 61. 63 are spaced apart the distance X corresponding to the spacing between the blade 32 and the guide pegs 24, 26 Thus, the groov es 61. 63 prov ide an indication for the user as to the cutting distance provided between the guide pegs 24. 26 and the cutting blade 32 to thereby facilitate selection and use of the blade cartridge 10 Similarlv . the cov er portion 16' show n in Fig 10 includes a pair of spaced, elongated grooves 61 '. 63 The groov es 61 '. 63 are spaced apart a distance X corresponding to the distance X' between the blade 32 and guide pegs 24'. 26' of the second head portion 14' As with the first cover portion 16. the grooves 61 ', 63' on the second cover portion 16' provide an indication to a user to facilitate selection and use of the second blade cartridge 10' Referring to Figs 12 and 13. the blade cartridge 10 is shown in use with an oval template 12 The template 12 is formed as a substantially planar member having an outer peripheral edge 74 and an inner peripheral edge 76 defining an open interior area 78 The template 12 further includes an upper surface 80 and a lower surface 82 wherein the upper surface 80 includes a first groove 84 adjacent to and spaced inwardly from the outer peripheral edge 74. and a second groove 86 adjacent to and spaced outwardly from the inner peripheral edge 76 The first groove 84 defines a first predetermined cutting path for guiding the blade cartridge 10 around the outer periphery of the template 12, and the second groov e 86 defines a second predetermined path for guiding the blade cartridge 10 withm the open interior area 78 of the template 12 As best seen in Fig 13. the spaced pegs 24. 26 are engaged withm the groove 84 to guide the blade cartridge 10 around the outside of the template 12 in a first predetermined oval cutting path In this use of the cutting system of the present invention, the blade cartridge 10 incorporating the first head portion 14 may be guided along the first cutting path 84 to cut out a desired portion of a photograph, and the blade cartridge 10' incorporating the second head portion 14' may be guided along the first cutting path 84 to cut out a mat portion of a larger size for use with the cropped photograph. Alternatively, the blade cartridges 10. 10' may be guided around the interior oval path defined by the groove 86. In this use of the blade cartridges 10, 10' the blade cartridge 10' would be used to crop the photograph, while the blade cartridge 10 would be used to create the mat for use with the cropped photograph. Referring to Fig. 15. a circular template 12a is illustrated including a first groove 84a located adjacent an outer peripheral edge 74a. and includes a second groove 86a located adjacent an inner peripheral edge 76a defining an open interior area 78a. Further, the blade cartridge 10 is illustrated in position on the second groove 86a for following a cutting path defined within the open interior area 78a. Referring further to Fig. 16. an additional template 12b is illustrated for use with the blade cartridges 10, 10' of the present invention. In this embodiment of the template, the template 12b is provided with a straight edge 88 having a straight groove 90 located adjacent thereto for guiding a blade cartridges 10, 10'. An opposing edge 92 defines a wavy shape and includes a corresponding wavy groove 94 for guiding a blade cartridges 10. 10'. In addition, it should be understood that a wide variety of other guide shapes may be provided for guiding the blade cartridges 10. 10' of the present invention. Referring to Fig. 14. the bottom surface 82 of the template of Figs. 12 and 13 is shown and includes discrete recessed areas 83 within which feet or pads of non-slip material 85 are placed. For example, in the preferred embodiment, the template 12 is formed of a polycarbonate material which will permit the blade cartridges 10. 10' to easily slide across the upper surface 80 of the template 12. The pads 85 are preferably formed of a second, non-slip material, such as polyurethane. which will ensure that the template 12 will not slip relative to a substrate surface such as a picture or mat being cut. In addition, the pads 85 are strategically placed at four equally spaced circumferential locations. 90° from each other, to minimize the amount of non-slip material 85 required while providing the template with sufficient non-slip material 85 to ensure that it will function as desired for any cutting operation in accordance with the design of the template 1 . Further, it should be understood that the templates 12a and 12b shown in Figs. 15 and 16 are provided with a similar non-slip material. It should also be noted that the template shown in Fig. 15 is provided with pads 85 at four equally- spaced circumferential locations, in a manner similar to that shown for the template shown in Fig. 14. From the above description it should be apparent that the cover portion 16 of the present invention performs a dual function in combination with the head portion 14. in that the cover portion 16 operates as both a handle for guiding the cutting action performed by the head portion 14 when the cover portion 16 is mounted to the head portion 14 in a use position, and as a safety cover over the cutting blade 32 when the cover portion 16 is in a non-use position on the head portion 14. In the use position of the cover portion 16, the cover portion 16 is mounted over the end 22 of the head portion 14 with the gripping portions 36, 38 located within the channels 62. 64. and the tabs 72 of the cover portion 16 engaged within the recesses 44 to positively hold the cover portion 16 in place on the head portion 14. Alternatively, in the non-use position of the cover portion 16, the cover portion 16 is positioned over the end 18 of the head portion 14 with the gripping portions 36. 38 engaged within the channels 62. 64. In this position of the cover portion 16, the tabs 72 of the cover portion 16 are engaged with the recesses 46 adjacent the end 18 of the head portion 14 to thereby positively lock the cover portion 16 in place over the head portion 14. It should further be noted that by providing the ribs 54 around the cover portion 16. and by providing corresponding ribs 55 on the gripping portions 36, 38, the blade cartridge 10 is provided with a convenient gripping surface for facilitating gripping of the blade cartridge 10 in a cutting operation. In addition, the ribs 54. 55 facilitate grasping the cover portion 16 and head portion 14 when a user desires to separate these two portions in order to change the position of the cover portion 16 relative to the ends 18 and 20 of the head portion 14. Thus, the blade cartridge of the present invention provides a simple structure in which a cover poπion 16 for the blade caπridge performs a dual function of forming a handle during use of the blade caπridge and forming a safety cover for preventing contact with the blade of the blade caπridge when it is not in use. In addition, the present invention advantageously provides a set of first and second blade caπridges wherein the caπridges are usable with guide templates and provide different predetermined cutting perimeters whereby one blade caπridge may provide a cropped photo and the other blade caπridge may provide a mat for the cropped photo. Also, different templates may be provided to provide for different cutting patterns, and the templates may be provided with interior and exterior cutting peripheries to provide a plurality of guide paths for the blade caπridges on a single template. While the form of apparatus herein described constitutes a prefeπed embodiment of this invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without depaπing from the scope of the invention which is defined in the appended claims.

Claims: -CL IMS-- 1 \ guided cutting sy stem comprising a blade caπridge including a head poπion and a cover poπion. said head poπion having a side wall extending between a cutting end and an opposing non-use end of said head poπion. guide means extending from said cutting end for engaging with and following a cutting template to facilitate guiding said blade caπridge in a predetermined pattern. a cutting blade extending from said cutting end and located in spaced relation to said guide means. said cover poπion comprising a side wall extending between a peπpneral edge and an end wall, said peripheral eαge and said end wall defining an open end and a closed end. respectively . said side wall of said cover poπion including an inner surface dimensioned for receiving and engaging said side wall of said head portion, wherein said cover portion is mountable to said head portion in a first, use position with said inner surface engaging said side wall of said head portion and said end wall covering said non-use end of said head portion whereby said cover portion is positioned for use as handle to guide said blade cartridge around a template, and a second, non-use position with said inner surface engaging said side wall of said head portion and said end wall covering said cutting end of said head portion whereby said cover portion is positioned to protect said cutting blade from contact 2 The cutting system of claim 1 including locking members located on said head portion and said cover portion for detachably locking said cover portion in said first position and said second position 3 The cutting system of claim 2 wherein said locking members comprise cooperating tabs and recesses 4. The cutting system of claim 1 wherein said side wall of said head portion is generally cylindrical and including a pair of diametrically opposed gripping portions, each gripping portion comprising radially extending side surfaces, and said side wall of said cover portion including a pair of diametrically opposed channels located adjacent said open end for receiving said gripping portions. 5. The cutting system of claim 4 including end surfaces at opposing ends of said gripping portions adjacent said cutting end and said non-use end of said head portion, and said channels in said cover portion each including an inner edge located distal from said peripheral edge, each said inner edge engaging an end surface when said cover portion is in said first and second positions on said head portion. 6. The cutting system of claim 1 including a template defining a pattern to be cut. said template including a groove for receiving said guide means. 7. The cutting system of claim 6 wherein said template includes an outer peripheral edge and said groove is located adjacent to said outer peripheral edge, and including an open interior area defined by an inner peripheral edge of said template located within said outer peripheral edge, and a second groove located adjacent to said inner peripheral edge for receiving said guide means to guide said blade cartridge along a predetermined path within said open interior area. 8. The cutting system of claim 6 wherein said blade cartridge comprises a first blade cartridge, and including a second blade cartridge having the same elements as those recited for said first blade cartridge and wherein a distance between the guide means and the cutting blade of said second blade cartridge is greater than a corresponding distance between the guide means and the cutting blade of said first blade cartridge. 9. A guided cutting system comprising: a first blade caπridge and a second blade caπridge. each said blade caπridge including a cutting end and a handle poπion extending above said cutting end: each said cutting end including a guide means and a cutting blade located in spaced relation to said guide means: wherein a distance between the guide means and the cutting blade of said second blade caπridge is greater than a coπesponding distance between the guide means and the cutting blade of said first blade caπridge: and a template defining a pattern to be cut. said template including a groove for receiving said guide means therein whereby a selected one of said blade caπridges is guided to follow said pattern and cut a substrate underlying said template. 10. The cutting system of claim 9 wherein said guide means comprises a pair of spaced pegs extending from said cutting end. 1 1. The cutting system of claim 9 wherein said template includes an outer peripheral edge and said groove is located adjacent to said outer peripheral edge, and including an open interior area defined by an inner peripheral edge of said template located within said outer peripheral edge, and a second groove located adjacent to said inner peripheral edge for guiding said selected one of said blade caπridges to cut a substrate in the open interior area of said template. 12. The cutting system of claim 9 wherein said template is formed of a first material and a lower surface of said template includes a coating of a second, nonslip material for increasing friction between said template and an underlying substrate to be cut. 13. The cutting system of claim 9 wherein each said blade caπridge comprises a head poπion and a cover poπion. and including locking members for detachably locking said cover poπion on said head poπion. 14. The cutting system of claim 9 wherein said head poπion includes said cutting end and fuπher includes an opposing non-use end. and said cover portion is mountable over either of said cutting end and said non-use end and defines said handle portion. 15. A guided cutting system comprising: a blade cartridge including a head poπion and a cover poπion wherein said head poπion includes a cutting end; guide means extending from said cutting end for engaging with and following a cutting template to facilitate guiding said blade caπridge in a predetermined pattern: a cutting blade extending from said cutting end wherein said cutting blade is spaced from said guide means a predetermined distance: said cover ponion extending from said head poπion in a direction opposite from said cutting end. and said cover ponion including an end wall; and a pair of spaced, elongated grooves defined in said end wall of said cover poπion wherein said grooves are spaced apaπ a distance coπesponding to the spacing between said guide means and said cutting blade whereby said grooves indicate to a user the spacing between said guide means and said cutting blade. 16. The cutting system of claim 15 wherein said cover poπion is detachably attached to said head poπion and is attachable over said cutting end of said head poπion to cover said cutting blade. 17. The cutting system of claim 15 wherein said blade caπridge comprises a first blade cartridge, and including a second blade cartridge having the same elements as those recited for said first blade cartridge wherein a distance between the guide means and the cutting blade of said second blade cartridge is greater than a coπesponding distance between the guide means and the cutting blade of said first blade cartridge, and a spacing between the elongated grooves on the cover portion of said second blade cartridge coπespond to the distance between the guide means and the cutting blade of said second blade caπridge. 18 The cutting sv stem of claim 15 including a template defining a pattern to be cut said template including a groov e for receiv ing said guide means 19 A. guided cutting sv stem comprising a substantially planar template hav ing an upper surface and a lower surface said template including an outer peripheral edge and a first groov e defined in said upper surface ad]acent to and spaced inwardly from said outer peripheral edge for receiv mg a portion oi a cutting tool to guide the cutting tool in a first predetermined cutting path. said template including an open interior area defined by an inner peripheral edge oi said template, and a second groov e defined in one ol said upper and lower surtaces of said template located ad]acent to and spaced outwardly from said inner peripheral edge for receiving a poπion of a cutting tool to guide the cutting tool in a second predetermined cutting path 20 The cutting system of claim 19 wherein said template is formed of a first material and said lower surface of said template includes a coating of a second, nonslip material for increasing friction between said template and an underlying substrate to be cut 21 The cutting system of claim 19 including a cutting tool having a cutting end and a handle poπion extending above said cutting end, said cutting end including a pair of guide pegs for engaging within the grooves of said template and a cutting blade located in spaced relation to said guide pegs for cutting a substrate underlying said template 22 The cutting system of claim 21 wherein said cutting tool includes a head poπion and a cover poπion detachably mounted to said head poπion. and wherein said head poπion defines said cutting end and said cover poπion defines said handle poπion 23. The cutting system of claim 22 wherein said head portion includes a cutting end and a non-use end. and said cover portion is mountable over either of said cutting end and said non-use end of said head portion. 24. A guided cutting system comprising: a first blade cartridge and a second blade cartridge, each said blade cartridge including a head portion and a cover portion: each said head poπion having a generally cylindrical side wall extending between a cutting end and an opposing non-use end of said head poπion: said cutting end of each said head portion including a pair of spaced guide pegs extending generally parallel to said side wall wherein a line passing through said guide pegs is located in spaced relation to a diametrical center of said head portion and is perpendicularly bisected by a bisecting line passing through said diametrical center; a blade aperture defined in said cutting end of each said head portion, located in spaced relation to said diametrical center and intersected by said bisecting line; a blade holder located within said blade aperture, and a blade located within said blade holder and including a pair of cutting edges converging to a point, wherein said blade of said first blade cartridge is located a predetermined first distance from said line passing through said guide pegs of said first blade cartridge, said blade of said second blade cartridge is located a predetermined second distance from said line passing through said guide pegs of said second blade cartridge, and said second predetermined distance is greater than said first predetermined distance; a pair of diametrically opposed gripping portions defined on said side wall of each said head portion, each said gripping portion comprising a raised sector extending radially outwardly from said side wall; each said cover portion comprising a generally cylindrical side wall, an open end and a closed end; said side wall of each said cover poπion including a pair of diametrically opposed channels located adjacent said open end for receiving said gripping poπions; .1 7. each said gripping poπion including radially extending side surfaces. and each said side surface including at least one recess; each said channel including a pair of parallel, opposed edges for engaging respective ones of said side surfaces on said gripping poπions. and at least one of said pair of parallel opposed edges including a tab for engaging in a respective one of said recesses to detachably lock said cover poπion to said head poπion wherein said cover poπion is configured to mount over either of said cutting end and said non-use end of said head poπion with the opposing end thereof facing outwardly from said cov er poπion: and a template defining a pattern to be cut. said template including a groove for receiving said guide pegs therein and wherein, when said cover poπion is positioned on said head poπion of a selected one of said blade caπridges with said cutting end facing outwardly from said cover poπion. said cover poπion forms a handle for an operator to grip and guide said selected one of said blade caπridges around said groove in said template. 25. The cutting system of claim 24 wherein said template includes an outer peripheral edge and said groove is located adjacent to said outer peripheral edge, and including an open interior area defined by an inner peripheral edge of said template located within said outer peripheral edge, and a second groove located adjacent to said inner peripheral edge for guiding said selected one of said blade caπridges.

Inventors: CAI ERHUA, LIRA-NUNEZ CARMEN, REARDON JAMES W, CAI, ERHUA, LIRA-NUNEZ, CARMEN, REARDON, JAMES, W.
Applicants: ANTIOCH COMPANY, THE ANTIOCH COMPANY
Application year: 2000
Main classification: B26B29
IPC codes: A61F13, B26B3, B26B5, B26B29, B26D1