Shape cutting system

Information

  • Patent Grant
  • 6722051
  • Patent Number
    6,722,051
  • Date Filed
    Thursday, January 25, 2001
    23 years ago
  • Date Issued
    Tuesday, April 20, 2004
    20 years ago
Abstract
A shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly and a blade assembly are coupled to the frame. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to a lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer. A rigid collar of the retainer is configured to operatively engage at least one of a periphery and the edge of an opening of the template thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.
Description




FIELD OF THE INVENTION




The present invention relates generally to a shape rendering system. More particularly, the present invention relates to the field of marking devices, including cutting devices, and templates.




BACKGROUND OF THE INVENTION




Devices for rendering marks upon materials such as paper, cardstock and photographs are generally well known. Such devices, including cutting devices, are typically configured for performing free-form marking or cutting. Many marking devices are also used in conjunction with a template for marking or cutting specific or predetermined shapes from a material. Cutting devices having an adjustable blade are also known and are typically used for cutting materials of varying thicknesses. Other cutting devices can include a swiveling blade which swivel or rotate about a longitudinal axis of the cutting device. Cutting devices typically are elongate members having housings which form a handle for grasping by a user during cutting. The housing usually connects at its lower end to the blade. The angular position of the cutting blade of the cutting device with respect to the material to be cut is typically determined by the user's hand.




Templates are also well known. Templates typically are flat sheets having first and second sides, and one or more openings formed in a variety of different shapes. The cross-sectional shape, of the periphery of the template and the edges of the template at the openings, typically defines straight-cut edges extending perpendicularly from the first side to the second side. Templates are commonly made of semi-transparent, generally flexible material. Templates used to produce geometric or other shapes of varying sizes can also be configured as nested templates. Nested templates include a series of elongate, unconnected slots which form outlines of specific shapes. When using nested templates, the user is required to cut the portions of the material to be cut which extend between the ends of the slots in order to completely outline or cut out the desired shape.




Existing devices for rendering marks and existing templates have a number of drawbacks. Existing rendering or cutting devices are typically not securely orientated in regard to angle with respect to the material. As a result, the angular orientation of the device with respect to the material to be cut (e.g., the blade of a cutting device) is often inadvertently changed causing an error in the desired marking or cutting. Existing devices which do fix the angular orientation of the cutting device with respect to the material are typically configured for free-form cutting only and do not properly function in conjunction with templates. Other devices which fix the angular orientation of the cutting device with the material to be cut are large, expensive devices which are often difficult to operate and to transport.




Further, existing cutting devices are typically formed of non-transparent material which partially obstructs the user's view of the material to be cut. Also, many cutting devices utilize a bottom-load blade connection of the blade to the housing of the device. The bottom-load connection of the blade to the housing makes the blade susceptible to becoming dislodged from the housing during operation. Existing cutting devices also typically do not include blade depth indication which increases the likelihood of blade depth mis-adjustment. Existing cutting devices also typically do not accommodate spare blades or blade assemblies. Those cutting devices, which have a rotatable or swivelable blade, are not typically configured for use with a template. When not in operation, existing cutting devices often have exposed cutting blades which are susceptible to contact by the user.




Existing templates are not configured for effective operation with cutting devices, and in particular, with cutting devices wherein the housing and the blade assembly are maintained in a generally fixed orientation with respect to the template. The periphery and the edges at the openings of existing templates often cause existing rotatable or swiveling blade assemblies to bind which can result in mis-cuts. Also, existing nested templates produce incomplete shapes and require the user to undertake a secondary cutting or marking operation, typically without the aid of the template, to complete the cutting or marking of the desired shape.




Thus, there is a need for a device for rendering marks or cuts onto a material which maintains the marking assembly in substantially constant angular orientation with respect to the material to be cut and which is configured for use in either a free-form rendering mode or a template rendering mode. There is also a continuing need for cutting device which is configured for single-hand operation and which can be adjusted without the use of tools. What is needed is a cutting device having a blade assembly which is not susceptible to separation from the lower portion of the housing and a cutting device which indicates the depth of the cutting blade. A cutting device configured to prevent contact with the blade when the device is not in use is also needed. Further, there is a continuing need for a cutting device having many of these attributes which also accommodates spare blade assemblies and which enables the replacement of blades without the use of tools. Additionally, there is a need for a template which operates effectively with a rotatable or swiveling cutting blade of a cutting device. In addition, a template is needed which enables the continuous and uninterrupted cutting of shapes of varying sizes.




SUMMARY OF THE INVENTION




The present invention provides a shape cutting system for cutting a material having a surface. The shape cutting system includes a cutting unit and at least one template. The cutting unit includes a frame, a blade adjustment assembly coupled to the frame, and a blade assembly coupled to the frame. The frame has a lower support surface. The blade assembly is positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to the lower support surface of the frame. The blade assembly includes a blade retainer and a blade connected to the retainer which has a rigid collar. The blade assembly is rotatable about the longitudinal axis. The at least one template has first and second substantially flat surfaces, a periphery and at least one edge defining at least one opening. The frame of the cutting unit has a lower surface for contacting at least one of the first surface of the template and the material to be cut. The second surface of the template is configured for placement upon the material to be cut. The rigid collar of the retainer is configured to operatively engage either the periphery of the edge of the opening of the template. The engagement of the collar to the template enables the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.




According to a principal aspect of a preferred form of the invention, a device for rendering shapes upon a material wherein the device may be used in conjunction with at least one template. The device includes a frame, a marking device adjustment assembly and a marking device assembly. The frame includes a base and a housing. The base includes a substantially flat lower surface for contacting one of the material to be cut and the template. The housing is coupled to the base and also has first and second interconnected openings. The housing is supported by the base in at least one position above the lower surface of the base. A marking device adjustment assembly is coupled to the housing at the first opening. A marking device assembly is operatively coupled to the marking device adjustment assembly. The marking device assembly is at least partially enclosed by the housing at the second opening of the housing. The second opening of the housing is sized to enable a lower portion of the marking device assembly to partially and adjustably extend through the second opening, and to prevent the marking device assembly from fully extending through the second opening.




According to another aspect of the invention a device is included for rendering shapes upon a material wherein the device may be used in conjunction with at least one template. The device includes a frame, a marking device adjustment assembly, and a marking device assembly. The frame has a substantially flat lower surface for contacting one of the material to be cut and the template. The flat lower surface is sized to support the frame in an upright position. The marking device adjustment assembly is coupled to the frame. The marking device assembly is at least partially enclosed by the frame and is operatively coupled to the marking device adjustment assembly. The frame has a storage compartment for storing at least additional marking device assembly.




According to a another aspect of the invention a template is included for facilitating the rendering of shapes onto a material by a rendering device. The template includes a substantially flat sheet having first and second sides, a periphery and at least one opening extending from the first side to the second side. The first side of the sheet is configured for placement upon the material to be cut. The second side of the sheet is configured to contact the rendering device. The sheet is made of a semi-transparent tinted template material. The first side laterally extends at the periphery and at the one opening farther than the second side to define a chamfer at the periphery and at the one opening of the template.




This invention will become more fully understood from the following detailed description, taken in conjunction with the accompanying drawings described herein below, and wherein like reference numerals refer to like parts.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a perspective view of the cutting system, including a cutting unit and a template, in accordance with a preferred embodiment of the present invention;





FIG. 2

is an exploded perspective view of a cutting unit of the shape cutting system of

FIG. 1

;





FIG. 3

is a side view of the cutting unit of

FIG. 1

;





FIG. 4

is a detailed view of section A of

FIG. 3

;





FIG. 5

is a top perspective view of a template and a mat of the shape cutting system of

FIG. 1

;





FIG. 6

is a side view of the template of

FIG. 5

;





FIG. 7

is a detailed view of the template along the section B of the template of

FIG. 6

;





FIG. 8A

is a side view of a blade assembly in accordance with an alternative preferred embodiment of the present invention; and





FIG. 8B

is a side view of a blade assembly in accordance with another alternative preferred embodiment of the present invention.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS




Referring to

FIG. 1

, a shape cutting system is indicated generally at


10


. The shape cutting system


10


includes a cutting unit


12


, at least one template


14


and a cutting mat


15


(see FIG.


5


). The cutting unit


12


is a lightweight, handheld positionable assembly configured for operation with one of the templates


14


and for application directly onto a material to be cut without templates. The cutting unit


12


is also configured to cut material such as paper, card stock, photographs, and other related goods into desired shapes or patterns. The cutting unit


12


functions in at least two operating modes. In the first operating mode, a free-form or free-hand mode, the cutting unit


12


is placed directly upon the material to be cut and is translated preferably by a single hand of the user, in the desired direction across the material to perform free-form cutting. In the second mode of operation, the template cutting mode, the cutting unit


12


works in conjunction with at least one of the templates


14


to cut a prescribed or predetermined pattern, segment or shape, as outlined by the template


14


and as desired by the user. In an alternative preferred embodiment, the shape cutting system


10


can be used to render marks, not including cuts, onto a material as opposed to cutting the material. In such a preferred embodiment, the cutting unit


12


would be substituted with another marking device, such as a writing instrument. The cutting unit


12


is sized for ambidextrous single hand operation and to be easily transported or stored.





FIG. 2

illustrates the cutting unit


12


in greater detail. The cutting unit


12


includes a frame


16


, a protective cover


18


, a blade adjustment assembly


20


and a swivel blade assembly


22


. The frame


16


is preferably a handheld, one-piece support structure. The frame


16


is preferably configured for supporting and partially enclosing the blade adjustment assembly


20


and the blade assembly


22


. The frame


16


is also configured for removable contact with the template


14


or the material to be cut. The frame


16


is made of a durable, lightweight material, preferably, a clear, semi-transparent polycarbonate material. Alternatively, the frame


16


can be made of different materials such as, for example, other thermoplastic materials, metal, wood or glass.




The frame


16


includes a base


24


, a housing


26


and an arm


28


. The base


24


is a support structure having a substantially flat lower surface


30


and an aperture


32


defined within its center. The base


24


is coupled to the housing


26


by the arm


28


. The base


24


is configured to be easily translated over a surface of the material to be cut or an outer surface of one of the templates


14


. The base


24


is also configured to securely support the housing


26


in a fixed position. In a preferred embodiment, the base


24


securely integrally supports the housing


26


in a position substantially perpendicular to the lower surface


30


of the base


24


. The aperture


32


is configured to enable the blade assembly


22


to partially extend therethrough during operation. The base


24


further includes a wall


34


upwardly extending from an upper surface


36


of the base


24


. The wall


34


and the upper surface


36


of the base


24


combine to provide an annular handle which is configured to be easily grasped by the user enabling the user to easily move the cutting unit


12


in any direction across a surface of the material to be cut or the template


14


. The base


24


is preferably an annular member. Alternatively, the base


24


can be formed in other shapes such as, for example, a rectangular shape, an oval shape, a U-shape, or other conventional shapes.




The housing


26


is a generally cylindrical body having first and second openings


38


and


40


. The housing


26


is preferably integrally connected to the arm


28


and coupled to the base


24


. The first and second openings


38


and


40


of the housing


26


are defined to interconnect and axially extend through the housing


26


along a longitudinal axis


42


. The housing


26


is removably connected to, and partially encloses, the blade assembly


22


at the second opening


40


and the blade adjustment assembly


20


at the first opening


38


. The housing


26


is configured to retain at least a portion of the blade assembly


22


and a portion of the blade adjusting assembly


20


. The housing also allows top-loading of the blade assembly


22


into the housing


26


through the first opening


38


. The housing


26


is also configured to prevent the blade assembly


22


from fully extending through the second opening


40


of the housing


26


. This feature prevents the inadvertent separation or dislocation of the blade assembly


22


from the lower end of the housing


26


during operation. The housing


26


is also configured to enable the blade assembly


22


to move axially in a plurality of different positions based upon the adjustment of the blade adjusting assembly


20


, and to enable the blade assembly


22


to rotate, pivot and swivel about the axis


42


during operation.




The arm


28


is a curved support structure preferably having a partial, generally spherical shape. The arm


28


is preferably integrally connected to the base


24


and to the housing


26


for supporting the housing


26


above the aperture


32


of the base


24


. The arm


28


is configured to fixedly secure the housing


26


along the axis


42


in a position substantially vertical to the lower surface


30


of the base


24


. This configuration ensures that the blade assembly


22


is continuously maintained by the housing


26


, and the frame


16


is maintained in a substantially vertical position with respect to the base


24


when the base


24


is placed on a substantially horizontal surface. When in use, the arm


28


fixedly secures the angular orientation of the housing


26


with respect to the material to be cut. The configuration of the frame


16


eliminates the need for the user of the cutting unit


12


to adjust the angular orientation of the housing


26


and the swivel blade assembly


22


during operation. In alternative embodiments, the arm


28


can be configured to support the housing


26


and the blade assembly


22


in a plurality of different angular orientations with respect to the base


24


.




In a preferred embodiment, the arm


28


is a generally hollow structure and further includes an arm cover


44


. The arm


28


, including the cover


44


, form a spare blade assembly storage compartment


46


for receiving at least one spare blade assembly. The arm cover


44


is a curved, and partially generally spherical, member having an opening


48


at its upper end. The arm cover


44


is pivotally connected to the upper end of the housing


26


at the opening


48


. The opening


48


is configured to receive the upper end of the housing


26


and is coaxially aligned with the first opening


38


of the housing


26


. The cover


44


is configured to pivot about the axis


42


to enable a user to releasably access the storage compartment


46


. The arm cover


44


is made of a lightweight durable substantially transparent material, preferably, a clear polycarbonate material. Alternatively, the arm cover


44


can be made of other materials such as, for example, other thermoplastic materials or glass.




The storage compartment


46


of the arm


28


is sized to hold at least one spare blade assembly. The semi-transparent material of the arm


28


readily enables the user to visually ascertain whether a replacement blade assembly is stored within the storage compartment


46


without having to reposition the arm cover


44


from the arm


28


or disassemble the cutting unit. Alternatively, the arm


28


can be formed in other shapes or configurations, and it can be formed out of two or more members extending from the base


24


. Additionally, the storage compartment can be located at other locations on the frame


16


, such as, for example, formed as part of the base


24


.




The protective cover


18


is a generally circular disk. The cover


18


is removably connected to the base


24


and covers the lower surface


30


of the base


24


including the aperture


32


. The cover


18


prevents a user from inadvertently contacting the blade assembly


22


when the cutting unit


12


is not in use or when the cutting unit


12


is removed from contact with the cutting material. The cap


18


is made of a lightweight, flexible and durable material. Preferably, the cap


18


is made of a plastic, but alternatively, other conventional materials can also be used. The cover


18


provides a secure, lightweight, reusable and inexpensive means for safely protecting the user from contact with the blade assembly


22


when the cutting unit


12


is not in use. Alternatively, the cover


18


can be formed in other configurations which prevent contact with the blade assembly


22


installed in the frame


16


, such as a cap for the lower end of the housing


26


and the blade assembly


22


. In another alternative embodiment, the blade assembly


22


can be configured to be completely retractable within the housing


26


.




The blade assembly


22


is removably inserted and substantially enclosed by the housing


26


. The blade assembly


22


is inserted through the first opening


38


of the housing


26


and extends along the axis


42


within the housing


26


such that the lower portion of the blade assembly


22


outwardly extends from the second opening


40


of the housing


26


.




The blade assembly


22


includes a blade retainer


50


and a cutting blade


52


. The retainer


50


is a cylindrical body having an enlarged upper end


54


and a lower end formed having a diameter which is smaller than the diameter of the main portion of the retainer


50


. The lower end of the retainer


50


forms a collar


56


. The retainer


50


is sized to fit within the first opening


38


of the housing


26


, to extend through the interior of the housing


26


, and to partially and adjustably extend through the second hole


40


of the housing


26


. The retainer


50


is also sized to angularly rotate or swivel about the axis


42


during operation in either a clockwise or counter-clockwise direction. The swiveling or rotating feature of the blade assembly


22


with respect to the frame


16


enables the blade to follow a profile or shape defined in one of the templates


14


. The swiveling blade can follow the free-form movement of the user's hand across a surface without requiring the separate adjustment of the blade by the user during operation. The retainer


52


is configured to adjustably and axially extend within the housing


26


in response to the adjustment of the blade adjustment assembly


20


. The retainer


50


is made of a lightweight durable inexpensive material, preferably a plastic. Alternatively, other materials can also be used such as, for example, wood or metal. In an alternative embodiment, the retainer


50


can be configured to retain more than one blade or blades of varying sizes.




The upper end


54


of the retainer


50


is sized so as to prevent the retainer


50


from fully extending in an axial manner through the second opening


40


of the housing


26


. The upper end


54


also includes an upper bearing surface which is configured to removably and operatively contact the blade adjusting assembly


22


. This enables the retainer


50


to rotate or swivel with respect to the axis


42


and with respect to the blade adjustment assembly


20


, or to move axially along the axis


42


.




The collar


56


is configured to removably contact an edge of one of the templates


14


and is configured to facilitate the operation of the blade assembly


22


in conjunction with one of the templates


14


. Specifically, the collar


56


is configured to slide along and rotate as necessary with respect to an edge or the periphery of the template


14


, thereby enabling the blade


52


to conform to the shape defined in the template


14


.




The blade


52


is preferably a conventional single-edged blade which is preferably press-fit to the lower end of the retainer


50


. The blade


52


downwardly extends from the lower end of the retainer


50


and includes a cutting edge. The cutting blade


52


is most preferably made of a metallic material. In an alternative embodiment, the blade


52


can be a double edged blade


53


(see FIG.


8


A), a rotary blade


55


(see

FIG. 8B

) or comprise multiple blades for cutting materials such as, for example, paper, cardboard and cloth. In another alternative embodiment, the blade


52


can be replaced with a writing or marking implement or a tool, such as a drill bit.




Referring to

FIG. 2

, the blade adjustment assembly


20


is an adjustable device removably connected to the base


24


at the first opening


38


of the housing


26


. The blade adjustment assembly


20


is operatively coupled to the blade assembly


22


. The blade adjustment assembly


20


is configured for the application of varying amounts of downward pressure to the blade assembly


22


, which results in a corresponding variation in the amount of downward pressure applied to the blade assembly


22


for the cutting of material.




The blade adjustment assembly


20


includes a knob


60


, a plunger


62


and a biasing device


64


. The knob


60


is a generally cylindrical member having an operating mode indicating portion


70


formed between an enlarged upper end


66


and a lower end


68


. The lower end


68


of the knob


60


is removably connected to the housing


26


at the first opening


38


. The lower end of the knob


60


is also operatively coupled to the plunger


62


and the biasing device


64


. In a preferred embodiment, the lower end


68


of the knob


60


includes external threads which engage internal threads formed in the housing


26


at the first opening


38


. The knob


60


is configured to enable a user to grasp and rotate the upper end


66


of knob


60


in order to adjust the spring tension applied to the blade assembly


22


, or to remove the knob


60


from the housing


26


. The knob


60


is also configured to retain the plunger


62


and the biasing device


64


such that the blade adjustment device


20


maintains an adjustable downward force upon the blade assembly


22


. The knob


60


is made of a lightweight durable material, preferably a plastic. Alternatively, the knob


60


can be made of other materials such as wood or glass. The upper end


66


of the knob


60


preferably includes a plurality of outwardly extending projections to facilitate grasping and rotation of the knob


60


. The upper end


66


also preferably further includes an opening


72


for receiving a tool, such as an “Allen” key. The lower end


68


of the knob


60


includes a plunger receiving hole


74


for receiving a portion of the plunger


62


. The lower end


68


of the knob


60


is also configured to attach or connect to one end of the biasing device


64


.




The plunger


62


is a cylindrical body having an upper portion and an enlarged lower contact region


76


. The plunger


62


is coupled to the knob


60


at the hole


74


and is operatively connected to the blade assembly


22


at the retainer


50


. The plunger


62


also is connected to and preferably partially surrounded by the biasing member


64


. The plunger


62


contacts the retainer


50


of the blade assembly


22


to transmit the downward force caused by the adjustment of the knob


60


by the user for adjusting the axial position of the blade assembly


22


with respect to the housing


26


. The plunger


62


is made a durable lightweight material, preferably, a plastic. Alternatively, the plunger


62


can be made out of other materials, such as, for example, wood or metal.




The biasing device


64


is connected at one end to the knob


60


and at a second end to the plunger


62


. The biasing device


64


is preferably a helical spring. The biasing device


64


provides the adjustable downward force upon the lower end of the plunger


62


to continuously urge the blade assembly


22


downward and to resist upward movement of the blade assembly


22


during operation. The configuration of the cutting unit


12


eliminates the need for a user to axially orientate the cutting unit during operation.





FIG. 3

illustrates the cutting unit


12


in greater detail. Specifically, the substantially flat lower surface


30


of the base


24


and the central operating mode indicating portion


70


of the knob


60


are illustrated. The lower surface


30


of the base


24


is also configured to place in tension the material to be cut in order to smooth out the material for efficient cutting. The operating mode indicating portion


70


is configured to reflect the operating mode of the blade assembly


22


(see FIG.


2


).





FIG. 4

illustrates the operating mode indicating portion


70


of the knob


60


in greater detail. The operating mode indicating portion


70


includes a free-form operating range segment


78


and a template cutting operating range segment


80


. When the cutting unit


12


is operating in the free-form range, the upper end


66


of the knob


60


is positioned further away from the housing


26


, thereby exposing the free-form portion


78


of the operating mode indicating portion


70


of the knob


60


above the first opening


38


of the housing


26


. This indicates to the user that the cutting unit


12


is in a free-form operating mode. When in the free-form mode of operation, the upward extension of the knob


60


reduces the pressure applied from the knob


60


to the biasing device


64


by enabling the biasing device


64


to upwardly extend. The decreased pressure on the biasing device results in a corresponding decrease in the pressure applied from the biasing device


64


to the plunger


62


and to the blade assembly


22


. The reduced pressure exerted onto the blade assembly


22


correspondingly results in less pressure or force exerted by the blade


52


onto the material to be cut. The free-form operating range enables the blade


52


to more easily upwardly and axially deflect during operation. The reduced pressure exerted onto the blade assembly


22


results in more efficient and effective free-form movement and cutting of the blade assembly


22


during free-form operation.




When the user desires to operate the cutting unit


12


in the template cutting mode of operation, the user simply re-positions the upper end


66


of the knob


60


closer to the housing


26


, until the free-form operating range segment is disposed within the housing


26


and the template cutting operating range segment


80


is visible above the first opening


38


of the housing


26


. This repositioning of the upper end


66


increases the downward pressure exerted on the biasing device


64


which correspondingly results in an increase in the pressure exerted by the biasing device


64


onto the blade assembly


22


. The increased pressure exerted onto the blade assembly


22


results in an increase in the pressure or force of the blade


52


against the material to be cut. When operating in the template cutting mode of operation, the blade assembly


22


deflects upward less easily than when in the free-form operating mode. The increased downward pressure applied to the blade assembly


22


during the template cutting mode of operation enables the collar


54


of the blade assembly


22


to effectively contact and operate with the edges of a template while maintaining an effective cutting force on the material to be cut. The blade assembly


22


retains the ability to swivel during operation in either the free-form or the template cutting operating modes. The pressure with which the blade


52


presses against the material to be cut is determined by the position of the upper end


66


of the knob


60


with respect to the housing


26


. Rotating or screwing the knob


60


down, gradually increases the pressure on the blade and subsequently allows a thicker medium to be cut.




Referring to

FIG. 5

, the template


14


and the cutting mat


15


are illustrated in greater detail. The template


14


is a substantially flat sheet having first and second sides


84


and


86


(see FIG.


6


), a periphery


88


and at least one opening


90


extending from the first side


84


to the second side


86


. The second side


86


of the template


14


is configured for placement upon the material to be cut. The first side


84


of the template


14


is configured to contact the cutting unit


12


. The template


14


is also configured to facilitate the cutting of shapes or the rendering of marks upon a material. The template


14


is made of a lightweight and durable material. Preferably, the template


14


is made of a flexible and semi-transparent tinted material. In a particularly preferred embodiment, the template


14


is made of a thermoplastic material including an edge glow substance. The edge glow substance disposal of the semi-transparent material of the template


14


is configured to redirect light passing through the template


14


to the periphery, or to the edge of the at least one opening, of the template


14


. The edge glow substance is a colorant, such as the colorant supplied by Clariant International, Ltd. The edge glow substance disposed within the material of the template


14


provides the periphery


88


and the edge of the openings


90


within the template


14


with a glowing appearance. The glowing appearance of the template


14


facilitates the placement of the cutting unit


12


onto the template


14


, enhances the user's ability to view the overall template positioning, and provides the template


14


with an aesthetically appealing appearance.




The edges of the periphery


88


of the template


14


can be formed into a variety of different shapes such as illustrated in FIG.


5


. The openings


90


each describe a complete shape, thereby eliminating the need for secondary cutting or operation. The openings


90


can also be formed in a variety of different shapes or families of shapes such as, for example, hearts, stars, geometric shapes and alphanumeric shapes. In a preferred embodiment, as shown in

FIG. 1

, the template


14


can include alphanumeric indicia


92


positioned at each opening


90


indicating of the size and/or the shape of each opening


90


. For example, the indicia


92


could include “3.50″×2.50″ OVAL″ or 3.0″ HEART”. Alternatively, the indicia could be a numerical value next to an opening indicating the size of the opening


90


.




Referring to

FIG. 5

, the template


14


further includes gridlines


94


formed into the first surface of the template


14


. The gridlines


94


facilitate the alignment of the template


14


onto the material to be cut. The template


14


can also include binder ring openings


96


for receiving a ring of a binder (not shown). Alternatively, the openings


96


can be used in conjunction with a clamping system or for template orientation.




The mat


15


is a sheet configured for placement underneath the material to be cut. The mat is configured to support the material to be cut without impending the operation of the cutting device and to protect the surface upon which the mat


15


and the material to be cut rests. In a preferred embodiment, the mat


15


is made of a material having short or tight nap. The mat


15


is preferably made of a firm, flexible and inexpensive materials, preferably the mat


15


is made of a thermoplastic material.




Referring to

FIGS. 6 and 7

, the template


14


is illustrated in further detail. The template


14


is preferably formed with a chamfer


98


at the periphery


88


and at the edges of the openings


90


within the template


14


. The chamfer


98


is defined within the template


14


such that the first surface


84


, which contacts the cutting unit


12


, laterally and outwardly extends to a greater extent than the second surface which contacts the material to be cut. The chamfer


98


facilitates the operation of the template


14


with the cutting unit


12


by enabling the collar


56


of the blade assembly


22


to operatively engage the edge or periphery of the template


14


during operation. The chamfer


98


reduces the surface area in contact with the collar


56


of the blade assembly


22


of the cutting unit


12


, thereby reducing the susceptibility of the blade assembly


22


to bind during operation. The chamfer


98


also enables the user to more easily reposition or move the cutting unit


12


, along the edge of one of the openings


90


or the periphery


88


of the template


14


, thereby facilitating the rendering or cutting of shapes onto the material to be cut. The chamfer


98


further prevents the blade


52


of the blade assembly


22


from contacting an edge, or the chamfer


98


of, the template


14


during use, thereby preserving the integrity of the edge, or the chamfer


98


of, the template


14


.




Additionally, the corners of the template


14


are configured to enable the cutting unit


12


to continuously and efficiently travel around one or more of the corners during cutting operation. This feature greatly reduces the amount of alignment required by the user when attempting to create a corner having an edge substantially similar to the template periphery


88


.




While the preferred embodiments of the present invention have been described and illustrated, numerous departures therefrom can be contemplated by persons skilled in the art, for example, the cutting unit


12


can include alternative blade adjustment assembly designs comprising a gear assembly or a remotely operated assembly. Additionally, the cutting unit can be configured to reciprocate or continuously rotate about the axis. Therefore, the present invention is not limited to the foregoing description but only by the scope and spirit of the appended claims.



Claims
  • 1. A shape cutting system for cutting a material having a surface, the system comprising:a cutting unit including a frame having a lower support surface, a blade adjustment assembly coupled to the frame, a blade assembly operatively connected to the frame, the blade assembly positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to the lower support surface of the frame, the blade assembly including a blade retainer and a blade connected to the retainer and having a tip aligned with the blade assembly, the retainer having a rigid collar, and the blade assembly and blade tip rotatable about the longitudinal axis, and a blade adjustment assembly coupled to the frame and operatively connected to the blade assembly, the blade adjustment assembly including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member to adjust the pressure exerted against the blade assembly; and at least one template having first and second substantially flat surfaces, a periphery and at least one edge defining at least one opening, the lower support surface of the frame configured for contacting at least one of the first surface of the template and the material to be cut, the second surface of the template configured for placement upon the material to be cut, the rigid collar of the retainer configured to operatively engage at least one of the periphery and the edge of the opening of the template, thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.
  • 2. The shape cutting system of claim 1 further comprising a cutting mat, the cutting mat configured for placement under the material to be cut, the template and the cutting unit.
  • 3. The shape cutting system of claim 1 wherein the cutting unit includes a protective cover covering the lower surface of the frame and the lower portion of the blade assembly.
  • 4. The shape cutting system of claim 1 wherein the frame includes a base and a housing coupled to the based, wherein the housing is configured to enclose at least a portion of the blade adjustment assembly and the blade assembly, wherein the blade assembly extends along a first axis, and wherein the lower surface of the base defines a plane which is substantially perpendicular to the first axis.
  • 5. The shape cutting system of claim 4, wherein the blade assembly is rotatable about the first axis in at least one of a clockwise and a counterclockwise direction.
  • 6. The shape cutting system of claim 1 wherein the frame includes a compartment for storing at least one spare blade assembly.
  • 7. The template of claim 1 wherein the template is made of a generally transparent tinted material, and wherein the material of the template includes an edge glow substance operably disposed with structure of template surfaces to redirect light toward the periphery and the edge of the at least one opening of the semi-transparent material.
  • 8. A shape cutting system for cutting a material having a surface, the system comprising:a cutting unit including a frame having a lower support surface, a blade assembly coupled to the frame, the blade assembly positioned at least partially within the frame such that a longitudinal axis of the blade assembly is substantially perpendicular to the lower support surface of the frame, the blade assembly including a blade retainer and a blade connected to the retainer, the retainer having a rigid collar, and the blade assembly rotatable about the longitudinal axis, and a blade adjustment assembly coupled to the frame and including a blade operating mode indicator, the position of the operating mode indicator affecting the approximate amount of downward pressure applied to the blade during operation, the blade adjustment assembly also including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member to adjust the pressure exerted against the blade assembly; and at least one template having first and second substantially flat surfaces, a periphery and at least one edge defining at least one opening, the lower support surface of the frame configured for contacting at least one of the first surface of the template and the material to be cut, the second surface of the template configured for placement upon the material to be cut, the rigid collar of the retainer configured to operatively engage at least one of the periphery and the edge of the opening of the template, thereby enabling the blade to cut a shape in the cutting material which assimilates the shape of at least a portion of the at least one of the periphery and the edge.
  • 9. The shape cutting system of claim 8 wherein the blade operating mode indicator indicates which of at least a first and a second operating mode the device is operating in.
  • 10. The shape cutting system of claim 9 wherein the first operating mode is a free-form cutting mode and wherein the second operating mode is a template cutting mode.
  • 11. A device for rendering shapes upon a material, the device comprising:a frame including a base including a substantially flat lower surface, and a housing operatively connected to the base, the housing having first and second interconnected openings, the housing supported by the base in at least one position above the lower surface of the base; a marking device adjustment assembly coupled to the housing at the first opening and including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member; a marking device assembly operatively coupled to the marking device adjustment assembly, the marking device assembly at least partially enclosed by the housing at the second opening of the housing, the second opening of the housing sized to enable a lower portion of the marking device assembly to partially and adjustably extend through the second opening, and to prevent the marking device assembly from fully extending through the second opening, the marking device assembly including cutting device substantially aligned with a longitudinal axis through the center of the marking device assembly.
  • 12. The device of claim 11 wherein the frame includes a compartment for storing at least one spare marking assembly.
  • 13. The device of claim 11 wherein the marking device assembly includes a marking device retainer and a marking device, wherein the marking device is selected from the group consisting of a cutting blade and a writing implement, and wherein the marking device retainer includes a lower collar for engaging the template during operation.
  • 14. The device of claim 11 wherein the frame is made of a generally transparent material.
  • 15. The device of claim 11 further comprising a protective cover releasably connected to the base, the cap substantially covering the base and generally covering a lower end of the marking device.
  • 16. The device of claim 11 wherein the marking device adjustment assembly and the marking device assembly are removably coupled to the housing such that the marking device assembly can be replaced without the use of tools.
  • 17. The device of claim 11 wherein the frame further comprises an arm connecting the base and the housing and wherein the frame is configured for one hand operation.
  • 18. A device for rendering shapes upon a material, the device comprising:a frame including a base including a substantantially flat lower surface, and a housing operatively connected to the base, the housing having first and second interconnected openings, the housing supported by the base in at least one position above the lower surface of the base; a marking device adjustment assembly coupled to the housing at the first opening and including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member; a marking device assembly operatively connected to the marking device adjustment assembly, the marking device assembly at least partially enclosed by the housing at the second opening of the housing, the second opening of the housing sized to enable a lower portion of the marking device assembly to partially and adjustably extend through the second opening, and to prevent the marking device assembly from fully extending through the second opening, the marking device adjustment assembly including a marking device operating mode indicator wherein the marking device adjustment assembly includes a marking device operating mode indicator, the position of the operating mode indicator affecting the general amount of pressure applied to the marking device for marking the material.
  • 19. The device of claim 18 wherein the marking device operating mode indicator indicates which of at least first and second operating modes the device is operating in.
  • 20. The device of claim 19 wherein the first operating mode is a free-form rendering mode and wherein the second operating mode is a template rendering mode.
  • 21. A device for rendering shapes upon a material, the device comprising:a frame having a substantially flat lower surface sized to support the device in an upright position; a marking device adjustment assembly coupled to the frame and including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member; a marking device assembly at least partially enclosed by the frame and operatively coupled to the marking device adjustment assembly, the marking device assembly including a marking portion having a longitudinal axis substantially perpendicular to the flat lower surface of the frame and passing through the center of the device, the frame having a storage compartment for storing at least additional marking device assembly.
  • 22. The device of claim 21 wherein the frame further includes a base having the substantially lower surface, a housing at least partially enclosing the marking device assembly, and an arm connecting the base to the housing, and wherein the arm has the storage compartment.
  • 23. The device of claim 21 further comprising a protective cover removably connected to the lower side of the frame, the cap covering the lower end of the marking device assembly.
  • 24. The device of claim 21 wherein the marking device assembly is a blade assembly and wherein the blade assembly includes at least one of a single edged blade, a double edged blade and a rotary blade.
  • 25. The device of claim 21, further comprising a template for facilitating the rendering of shapes onto a material by a rendering device, the template comprising:a substantially flat sheet having first and second sides, a periphery and at least one opening extending from the first side to the second side, the first side of the sheet configured for placement upon the material to be cut, the second side of the sheet configured to contact the rendering device, the sheet made of a semi-transparent tinted template material, the first side laterally extending at the periphery and at the at least one opening farther than the second side to define a chamfer at the periphery and at the at least e opening of the template.
  • 26. The device of claim 25 wherein the template material includes an edge glow material configured to redirect light toward the periphery and the edge of the at least one opening of the semi-transparent material.
  • 27. A device for rendering shapes upon a material, the device comprising:a frame having a substantially flat lower surface, the flat lower surface sized to support the device in an upright position; a marking device adjustment assembly coupled to the frame and including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member; a marking device assembly at least partially enclosed by the frame and operatively coupled to the marking device adjustment assembly, the frame having a storage compartment for storing at least additional marking device assembly wherein the marking device adjustment assembly includes a marking device operating mode indicator, the position of the operating mode indicator affecting the approximate amount of pressure applied to the marking device assembly during operation.
  • 28. A device for rendering shapes upon a material, the device comprising:a frame having a substantially flat lower surface, the flat lower surface sized to support the device in an upright position; a marking device adjustment assembly coupled to the frame and including an adjusting knob, a plunger, and a biasing member in contact with both the adjusting knob and the plunger, the adjusting knob applying pressure directly against the biasing member; a marking device assembly at least partially enclosed by the frame and operatively coupled to the marking device adjustment assembly, the frame having a storage compartment for storing at least additional marking device assembly wherein the marking device adjustment assembly is adjustably positionable in a plurality of positions and wherein each position of the marking device adjustment assembly results a different amount of downward pressure applied to the marking device assembly.
US Referenced Citations (31)
Number Name Date Kind
3156984 Palmer Nov 1964 A
3456346 Snyder Jul 1969 A
3576148 Katz Apr 1971 A
3633286 Maurer Jan 1972 A
3753384 Anfindsen Aug 1973 A
3778905 Jebb et al. Dec 1973 A
3787968 Littmann Jan 1974 A
3994194 Moceri Nov 1976 A
4057898 Piosky Nov 1977 A
4319615 Ditmanson Mar 1982 A
4353672 Smith Oct 1982 A
4382590 Pandya et al. May 1983 A
4426781 Kufrin Jan 1984 A
4934054 Morozumi Jun 1990 A
5156584 Cohen et al. Oct 1992 A
5322001 Boda Jun 1994 A
5414933 Garner May 1995 A
5503203 Stornetta Apr 1996 A
5518491 Romer et al. May 1996 A
5557996 Reber et al. Sep 1996 A
5626551 Kearns et al. May 1997 A
5671647 Mori Sep 1997 A
5685816 Romer Nov 1997 A
5802942 Cornell et al. Sep 1998 A
5855543 Carbone Jan 1999 A
5865928 Lariviere et al. Feb 1999 A
6036628 Romer Mar 2000 A
6112425 Nelson et al. Sep 2000 A
6158133 Carlson et al. Dec 2000 A
6216577 Lira-Nunez et al. Apr 2001 B1
6401343 Hsu Jun 2002 B1
Non-Patent Literature Citations (5)
Entry
Coluzzle, Collage Template System, Nested Templates, Product Literature, California East, Ltd. 1/98.
Coluzzle, Collage Template System, Nested Templates, Product Literature, California East, Ltd. 2/99.
Coluzzle, Collage, Puzzle Template Instructions Provo Craft, 1999.
Patricia Shaw “What Can You Do With A Doodle Cutter!”; Creating Keepsakes; Jul./Aug. 1999.
Doodle Cutter, Instructions For Use; Minix, Inc.; Jul. 21, 2000.