1. Field of the Invention
One invention relates to automatic X-Y cutters that cut patterns out of substantially planar work pieces such as paper. Another invention relates to a cutting mat.
2. Description of Related Art
It is known in the art to provide computer controlled X-Y cutters (see, e.g., U.S. Pat. Nos. 5,388,488 and 3,805,650). However, such X-Y cutters must be connected to a computer, rendering the entire apparatus bulky, non-portable, and expensive.
It is also known in the art to provide a set of cutting instructions on a removable floppy disk that is selectively connected to an X-Y cutter to cut a pattern corresponding to the set of cutting instructions (see U.S. Pat. Nos. 5,634,388 and 5,454,287). However, such devices are not user friendly and do not provide a simple way for an operator to choose among a plurality of patterns to be cut or to scale the size of the pattern up or down.
In X-Y cutters, it is known to use vacuum tables (i.e., tables with small suction holes in them) to hold down a work piece during a cutting operation. Unfortunately, such vacuum tables are noisy and expensive.
It is also known in the art to use a die cutter to cut paper patterns. Unfortunately, the operator must purchase a discrete, expensive die for each pattern and size that the operator wishes to make. For example, the operator must purchase 26 different dies just to have capital alphabet letters of a single size and style. Conventional die cutters also tend to be heavy and bulky because a large amount of force must be exerted on the die to punch through the paper.
Accordingly, one aspect of one or more embodiments of this invention provides an automatic pattern cutting apparatus that is self-contained and portable, and allows a plurality of different patterns to be quickly and easily selected and cut or processed from a work piece such as paper.
Another aspect of one or more embodiments of the present invention provides a cutting/processing mat for manual or automatic cutting/processing that releaseably secures the work piece in place during the pattern making procedure, and subsequently releases the produced pattern without harm. The cutting/processing mat is inexpensive, simple, and quiet.
Another aspect of one or more embodiments of the present invention provides a method of creating a pattern selection system for use with a pattern making apparatus. The method includes obtaining electronic data including (a) image data for a plurality of pattern identifiers, and (b) a plurality of sets of pattern making instructions corresponding to the plurality of pattern identifiers, the sets of pattern making instructions being usable by the pattern making apparatus for making patterns corresponding to the pattern identifiers. The method also includes loading the plurality of sets of pattern making instructions onto a memory device readable by the pattern making apparatus, and applying the plurality of pattern identifiers onto a substrate using the image data. Each pattern identifier on the substrate is associated with its corresponding set of pattern making instructions on the memory device.
According to a further aspect of one or more of these embodiments, obtaining the electronic data comprises using software on a computer to generate the electronic data. Additionally and/or alternatively, obtaining the electronic data comprises downloading the image data for the plurality of pattern identifiers over a communication network, and deriving the plurality of sets of pattern making instructions from the image data for the plurality of pattern identifiers, or vice versa. Obtaining the electronic data may include downloading the electronic data over a communication network or from a portable storage device.
According to a further aspect of one or more of these embodiments, the method includes physically assembling the substrate and the memory device. Additional substrates may also be created and assembled with the memory device as well to provide additional available patterns.
According to a further aspect of one or more of these embodiments, the position of each pattern identifier on the substrate associates that pattern identifier with its corresponding set of pattern making instructions on the memory device.
According to a further aspect of one or more of these embodiments, the plurality of sets of pattern making instructions comprise a plurality of pattern cutting instructions.
According to a further aspect of one or more of these embodiments, the method includes operatively connecting the substrate and memory device to a pattern making apparatus for making patterns on a substantially planar work piece. The pattern making apparatus includes a housing; a work piece supporting platform mounted to the housing, the platform being constructed and arranged to support the substantially planar work piece; a pattern making instrument constructed to interact with the work piece, the instrument and the platform being movable relative to one another in generally orthogonal X and Y directions, and in a Z direction generally orthogonal to the X and Y directions; a controller operatively connected to at least one of the instrument and the platform to move the instrument and platform relative to one another in the X, Y, and Z directions; and an operator interface operatively connected to the controller, the operator interface including a set of switches. Operatively connecting the substrate and memory device to the pattern making apparatus includes operatively connecting the memory device to the controller, each set of pattern making instructions being useable by the controller for moving the instrument and platform relative to one another for making a corresponding pattern from the work piece, and operatively connecting the substrate to the operator interface so that predetermined switches of the operator interface are associated with predetermined pattern identifiers on the substrate and their corresponding sets of pattern making instructions in the memory device.
According to a further aspect of one or more of these embodiments, operatively connecting the substrate to the operator interface comprises removably overlaying the substrate onto the operator interface such that each of the plurality of pattern identifiers is physically associated with a corresponding switch.
According to a further aspect of one or more of these embodiments, the method includes selecting a plurality of pattern identifiers from a collection of available patterns. Obtaining the electronic data comprises downloading data associated with the selected plurality of pattern identifiers via a communication network. The method may also include choosing desired pattern identifiers from the plurality of pattern identifiers for which associated data was downloaded. Applying the plurality of pattern identifiers onto the substrate comprises applying the plurality of pattern identifiers associated with the chosen desired pattern identifiers onto the substrate.
According to a further aspect of one or more of these embodiments, the method includes selecting an order for the selected plurality of pattern identifiers to appear on the substrate. Applying the plurality of pattern identifiers onto the substrate comprises applying the plurality of pattern identifiers onto the substrate such that the plurality of pattern identifiers are arranged in the selected order.
According to a further aspect of one or more of these embodiments, a pattern associated with one of the pattern identifiers comprises a plurality of sub-patterns, and wherein applying the plurality of pattern identifiers onto the substrate comprises applying a plurality of pattern identifiers associated with the plurality of sub-patterns adjacent each other on the substrate. The method may also include applying onto the substrate adjacent the plurality of sub-patterns indicia identifying the pattern and the sub-patterns that collectively form the pattern.
Another aspect of one or more embodiments of this invention provides a computer program for carrying out one or more of the above embodiments.
Another aspect of one or more embodiments of this invention provides a pattern cutting apparatus for cutting patterns out of a substantially planar work piece. The apparatus includes a housing; a platform supported by the housing; and a cutting mat supported by the platform. The cutting mat includes a substrate and a first adhesive layer disposed between the substrate and the platform. The first adhesive layer releasably mounts the cutting mat to the platform to enable the cutting mat to be detached from and repositioned relative to the apparatus. The mat also includes a second adhesive layer disposed on an opposite side of the substrate from the platform, the second adhesive layer being constructed and arranged to hold the work piece in a fixed position relative to the substrate while a pattern is cut from the work piece, the second adhesive layer being formed of a repositionable adhesive for releasing the work piece without damage after cutting. The apparatus also includes a cutter supported by the housing, the cutter and cutting mat being movable relative to one another in three orthogonal directions. The apparatus also includes a controller operatively connected to at least one of the cutter and cutting mat to move the cutter and cutting mat relative to one another in the three orthogonal directions. The first adhesive layer may have a higher tack than the second adhesive layer. A protective layer may be removably attached to an exposed surface of the second adhesive layer. The substrate may comprise vinyl or plastic. The mat may include at least one registration mark for guiding the placement of the work piece thereon.
Another aspect of one or more embodiments of this invention provides a work piece supporting mat for securing a substantially planar work piece while making one or more patterns from the work piece. The mat includes a substrate; an upper adhesive layer mounted to the substrate, the upper adhesive layer being formed of a repositionable adhesive for releasably holding the work piece in a fixed position thereon while a pattern is made from the work piece; an upper protective layer removably attached to an exposed surface of the upper adhesive layer; a lower adhesive layer mounted to the substrate, the lower adhesive layer being a repositionable adhesive for releasably holding the mat in a fixed position on a surface against which the mat is mounted; and a lower protective layer removably attached to an exposed surface of the lower adhesive layer. The lower adhesive layer may have a higher tack than the upper adhesive layer. A self-healing layer may be disposed between the substrate and the upper adhesive layer.
Another aspect of one or more embodiments of this invention provides a pattern cutting apparatus for cutting patterns out of a substantially planar work piece. The apparatus includes a housing and a cutting mat supported by the housing. The cutting mat includes a substrate, a self-healing layer disposed on the substrate, and an adhesive layer disposed on the self-healing layer, the adhesive layer being constructed and arranged to hold the work piece in a fixed position relative to the substrate while a pattern is cut from the work piece, the adhesive layer being formed of a repositionable adhesive for releasing the work piece without damage after cutting. The apparatus also includes a cutter supported by the housing, the cutter and cutting mat being movable relative to one another in three orthogonal directions. The apparatus also includes a controller operatively connected to at least one of the cutter and cutting mat to move the cutter and cutting mat relative to one another in the three orthogonal directions.
Another aspect of one or more embodiments of this invention provides a pattern cutting apparatus for cutting patterns out of a substantially planar work piece. The apparatus includes a housing; a work piece supporting platform; and a cutter assembly supported by the housing. The cutter assembly includes a cutter carrier having a work piece contacting surface, the cutter carrier being resiliently biased toward the platform for maintaining the work piece contacting surface in contact with the work piece and for enabling the cutter carrier to move upwardly when the work piece contacting surface engages raised portions of the work piece, and a cutter extending beyond the work piece contacting surface by a predetermined distance, the cutter assembly and platform being movable relative to one another in three orthogonal directions. The apparatus also includes a controller operatively connected to at least one of the cutter assembly and platform to move the cutter assembly and platform relative to one another in the three orthogonal directions.
According to a further aspect of one or more of these embodiments, the cutter assembly further comprises a resilient member that biases the cutter carrier toward the platform.
According to a further aspect of one or more of these embodiments, the cutter carrier is positioned and arranged such that cutter carrier and cutter move away from the platform in response to a predetermined force being applied to the work piece contacting surface and cutter.
According to a further aspect of one or more of these embodiments, the cutter carrier is positioned and arranged such that cutter carrier and cutter move away from the platform by at least 0.1 mm in response to the predetermined force being applied to the work piece contacting surface and cutter.
According to further aspects of one or more of these embodiments, the predetermined force may be less than 15.0 N, 10.0 N, 8.0 N, 6.0 N, 5.0 N, 4.0 N, and/or 3.0 N.
According to a further aspect of one or more of these embodiments, the controller comprises a linear actuator that operatively extends between the housing and the cutter carrier to selectively move the cutter carrier between cutting and non-cutting positions. The resilient member operatively extends between the linear actuator and the cutter carrier for biasing the cutter carrier toward the platform when the cutter carrier is in the cutting position.
Additional and/or alternative advantages and salient features of the invention will become apparent from the following detailed description, which, taken in conjunction with the annexed drawings, disclose preferred embodiments of the invention.
Referring now to the drawings which from a part of this original disclosure:
While the illustrated apparatus 10 utilizes a cutter 40 to make patterns in the work piece, alternative pattern making instruments may replace the cutter 40 to interact with the work piece. For example, the cutter 40 may be replaced with pattern making instruments such as a journaling instrument (e.g., pen, pencil, chalk, calligraphy pen, etc.), an embossing instrument, a scoring instrument, or a perforating instrument. If a journaling instrument is used, the apparatus 10 can draw patterns on the work piece. The operator may use these drawn or embossed patterns on the work piece as is, or may manually cut the pattern out of the work piece by using the drawn or embossed pattern as a guide.
As shown in
As shown in
The patterns and pattern making instructions in the booklet 60 may be designed to make patterns using any one or more different types of pattern making instruments. For example, a single set of pattern making instructions may be used to cut a pattern using the cutter 40, to journal the pattern using a journaling instrument, or to score the pattern using a scoring instrument. Additionally and/or alternatively, pattern booklets 60 (or individual patterns therein) may be specifically designed to make patterns using certain pattern making instruments. For example, certain patterns and pattern making instructions may be specifically designed for use with an embossing instrument or other specific type of pattern making instrument.
As shown in
While physical alignment between the illustrated pattern identifiers 120 and switches 80 involves disposing the switches 80 in close physical proximity to the pattern identifiers 120, the switches 80 and pattern identifiers may be physically aligned without such close proximity. For example, a line on the page may run from a pattern identifier 120 to an edge of the page and the associated switch 80 may be disposed adjacent the page 110 and line. Physical alignment merely requires a predetermined spatial link or relationship between the pattern identifier 120 and an associated switch 80 that helps an operator to know which switch 80 is associated with which pattern identifier 120.
While the illustrated pages 110 and pattern identifiers 120 physically align with the set of switches 80 so that each pattern identifier 120 physically corresponds to an associated switch 80, the pattern identifiers 120 may alternatively correspond to the set of switches 80 through a logical, non-spatial relationship. For example, each switch 80 may be numbered. Corresponding numbers could appear next to each pattern identifier 120 in the booklet 60. An operator could peruse the booklet 60, choose a desired pattern and pattern identifier 120, and indicate his/her selection to the apparatus 10 by actuating the correspondingly numbered switch 80. Moreover, in such an alternative, the corresponding switches could comprise a small keypad or other input device that enables the operator to simply type in a number or code corresponding to the pattern identifier 120. Likewise, with any of the above-described embodiments, the memory device 100 could be separate from the booklet 60 and inserted in a port on the apparatus 10, or otherwise engaged with a connector, for allowing the controller 50 to read the appropriate cutting instructions.
In an alternative embodiment, the operator interface 70 comprises a pattern identifier 120 selecting pen/wand. The operator may use the pen/wand to scan a bar code next to a desired pattern identifier 120 in the booklet 60. Alternatively, the operator may place the pen/wand on or near the desired pattern identifier 120 and the pen/wand may sense a corresponding short-range radio frequency ID tag disposed under or near the desired pattern identifier. The pen/wand may interact with the controller 50 via wireless or wired communication to indicate the desired pattern to the controller 50. Generally, any suitable operator interface may be used to allow the operator to select the desired set of instructions for controlling the cutting operation.
While the illustrated operator interface 70 is permanently attached to the housing 20 and removably mountable to the booklet 60, the operator interface 70 may alternatively be incorporated into the booklet 60, itself, such that the operator interface 70, memory device 100, and pages 110 are assembled together into the booklet 60. In such an embodiment, the switches 80 could be disposed beneath the pattern identifiers 120 on the pages 110 or between sandwiched layers of each page 110. The booklet 60 is removably mountable to the housing 20 with the operator interface 70 being operatively connectable to the cutter controller 50 through a port similar to the port 150 for the memory device. Alternatively, because the operator interface 70 is in the booklet 60, the memory device 100 and operator interface 70 may be connected to the cutter controller 50 by other means, such as by a connector cable (e.g., a USB cable) or by a wireless transmitter/receiver connection (e.g., an infrared connection or BLUETOOTH connection). In such alternatives, there is no need for providing a tray 75 or other structure for mounting the booklet 60 to the housing 20.
As shown in
In the illustrated embodiment, the sensors 125 comprise light sensors that sense whether a tab 135 covers the corresponding sensor 125. As shown in
Although the illustrated sensors 125 comprise light sensors, any other suitable sensor could alternatively be used. For example, the sensors 125 could comprise momentary switches that are actuated when the tabs 135 of the pages 110 are turned and lay on the switches. Alternatively, each sensor 125 may be incorporated into the spine of the booklet 60 so that the sensor senses a pivotal position of each page 110 relative to the spine of the booklet 60. Alternatively, each sensor 125 may be a switch that the operator actuates to indicate which page 110 is open. Alternatively, each sensor 125 may comprise any other type of suitable sensor that is capable of indicating to the cutter controller 50 which page 110 the operator is selecting patterns from.
As shown in
As shown in
After the operator has selected all patterns to be cut from a single work piece, the operator actuates a “CUT” button 160 (see
As shown in
As shown in
The lid sensor, as well as other sensors utilized by the apparatus 10, may comprise any type of suitable sensor as would be understood by one of ordinary skill in the art. For example, the lid sensor may comprise an appropriately positioned momentary switch that is physically actuated by the closing of the lid 140. Alternatively, the lid sensor may comprise electrical contacts on the housing and lid that contact each other to complete an electrical circuit when the lid 140 is closed.
The cutter controller 50 may also have various other useful control features and logical functions. These may include an on/off function and/or other control features.
The operator may interact with the cutter controller 50 by actuating appropriate switches 80. Alternatively, the apparatus 10 may also include a discrete keypad connected to the cutter controller 50 that enables the operator to make choices in response to cutter controller 50 instructions on the display 130.
The cutter controller 50 may perform various diagnostic functions at appropriate times during use. For example, if the memory device 100 is not detected or is faulty and cannot be read, the cutter controller may instruct the operator via the display 130 to insert and/or replace the memory device 100. The cutter controller 50 may similarly determine whether a booklet 60 is operatively connected to the apparatus 10.
Additional pattern booklets 60 may be provided with additional patterns and corresponding pattern making instructions so that the apparatus 10 has an even larger selection of patterns. The modular design of the apparatus 10 enables a user to quickly and easily mount other pattern booklets 60 to the operator interface 70 in place of the booklet 60.
As shown in
At step 700, a user purchases or otherwise obtains a blank booklet 60″. This method may also use a blank page that is not in a booklet.
At step 710, the user attaches the booklet 60″ with blank memory device 100″ to the apparatus 10. At step 720, the user connects the apparatus 10 to a computer via a USB connection 180 (see
At step 730, the user (on his/her computer or other suitable network access terminal) uses a password to enter a private web site operated on a remote server by the supplier of the booklets 60″ (or other appropriate vendor). The password and private web site enable the user to work within a personalized web environment to create and/or organize the patterns that will be added to the blank booklet 60″. The supplier may provide such a password with each blank booklet 60″ so that the cost of each booklet 60″ includes a charge for downloading patterns to the booklet 60″. Alternatively, the password can be linked to a pattern subscription service such that the supplier charges users for downloading patterns using any suitable payment system (e.g., charge per pattern downloaded, monthly/yearly charge for access to all available patterns, etc.). Alternatively, the supplier's web site could allow anyone to design booklets 60″, but require payment (or an authorizing password) before allowing the design to be downloaded to a user's memory device 100″. Alternatively, the supplier's web site could be free for all users and not require a password.
At step 740, the user creates and organizes the pages 110″ of the booklet 60″ online. This may include choosing which pattern identifiers 120 to include in the booklet 60″ as well as choosing which order the pattern identifiers will be placed on the pages 11O″.
At step 750, the user downloads page 110″ images and prints them onto pages 110″. The program and/or web site may derive images of the pattern identifiers 120 from their associated cutting instructions. At Step 760, the user attaches the pages 110″ to the booklet 60″. As shown in
At step 770, the user downloads cutting instructions corresponding to the pattern identifiers on the pages 110″ to the memory device 100″. The cutting instructions are correlated to the physical location of the corresponding pattern identifiers 120 on the pages 110″ such that selecting a pattern identifier 120 using the operator interface 70 causes the controller 50 to select the appropriate corresponding set of pattern making instructions from the memory device 100″.
In the above-described embodiment, the design of pages 110″ is conducted online via software run by the supplier's web site and whole page 110″ images are downloaded to the user's computer. Alternatively, this operation could be driven by software on the user's computer or on the memory device 100″ itself, which assembles pattern identifiers and sets of cutting instructions to generate electronic data including the pattern identifiers and corresponding sets of cutting instructions. The software could interact with the supplier's web site to identify available patterns and download specific sets of cutting instructions and pattern identifiers. For example, as shown in the screen print in
While the illustrated interaction between the program 1200 and supplier's server comprises a web site frame within the program 1200, the user may alternatively obtain patterns 1230 by using a web browser to connect directly to the supplier's web site to purchase patterns 1230. The user may then download purchased patterns 1230 and place them into the library 1220 on the user's computer. The user may alternatively obtain patterns 1230 via other means (e.g., from a CD, flash memory device, etc.).
The user may review the purchased and downloaded patterns 1230 by selecting a pattern library 1220 frame from the menu.
The patterns 1230 may comprise a plurality of sub-patterns 1240 that together create the pattern 1230 that is assembled post-cutting. For example, as shown in
As shown in
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As shown in
The user can then repeat this process to create additional page 110″ layouts for inclusion in a booklet 60″. For example, as shown in
After the user finalizes the booklet 60″ layout, the user may instruct the program 1200 to print the pages 110″ and download the cutting instructions from the user's computer to the memory device 100″. A printing component of the program 1200 creates a page 110″ image by positioning the pattern identifiers for the patterns 1230 and sub-patterns 1240 in appropriate positions so that the pattern identifiers 120 will be associated with corresponding switches 80 of the operator interface 70 when the booklet 60″ is operatively connected to the apparatus 10. The page 110″ image may then be printed onto a substrate (e.g., paper) that forms pages 110″ of the booklet 60″. Each page 110″ may then be attached to the blank booklet 60″ in the correct order (e.g., by trimming the edges of the page 110″ along dotted lines printed by the printing component and then slipping the page 110″ into a transparent pocket in the blank booklet 60″, gluing each page 110″ to a page of the blank booklet 60″, etc.). The program 1200 also downloads the cutting instructions to the memory device 100″ in such a way that the cutting instructions are associated with the corresponding patent identifiers 120. Consequently, cutting instructions for each pattern 1230 or sub-pattern 1240 are associated with a position 1280 on a page 110″ of the booklet 60″ such that when a switch 80 associated with that position 1280 is actuated, the apparatus 10 uses the set of cutting instructions associated with the pattern identifier 120 on at that position 1280 to cut the selected pattern 1230 or sub-pattern 1240.
The program 1200 may allow the user to repeatedly use a downloaded pattern 1230 in different booklets 60″. Alternatively, the program 1200 may allow the user to place a downloaded pattern in multiple booklet layouts, but only permit the pattern 1230 to be printed to a page 110″ and downloaded to a memory device 100″ once. In such an embodiment, the user must repurchase a pattern 1230 from the supplier to use it a second time.
The program 1200 may also enable a user to pull patterns 1230 back from a previously created booklet 60″ by connecting the memory device 100″ to the computer, deleting the pattern 1230 from the memory device 100″, and placing the pattern 1230 back into the library 1220 of available patterns 1220.
In the above-described embodiment, the program 1200 obtains patterns from the supplier's server via a communications network. Alternatively, as shown in
Additionally and/or alternatively, the software and/or web site may enable a user to design his/her own patterns. The program or web site would then create corresponding pattern making instructions based on the user-created pattern.
In the above described embodiment, pattern identifiers 120 and sets of cutting instructions are downloaded as separate files. Alternatively, both the pattern identifiers and the cutting instructions may be downloaded as a single file. For example, the software could derive the cutting instructions from the downloaded image data for the associated pattern identifier 120 (or vice versa). Conversely, the software could derive the image data for the pattern identifiers 120 from their associate cutting instructions. Any suitable software may be used for deriving vector data for the cutting instructions from the line/image data of the pattern identifiers or vice versa.
The booklets 60″ may be single-use booklets that only permit patterns to be downloaded onto the memory device 100″ once. Software or other suitable mechanisms in the memory device 100″ or elsewhere can be used to prevent additional downloads to the booklet 60″. Alternatively, the booklets 60″ may be reusable, such that the user can create entire new combinations of patterns by downloading new instructions to the memory device 100″ and adding new pages 110″ to the booklet 60″.
The provision of such a large number of possible patterns and pattern sizes on the pages 110, 110″ of the booklet 60, 60″ and memory device 100, 100″ presents a substantial improvement over conventional die-based cutters, whose repertoire of patterns and sizes is limited to the available discrete dies. In contrast, a large number of patterns and cutting instructions can be stored in the memory device 100, 100″ and pages 110, 110″ of a single compact booklet 60, 60″ of the apparatus 10.
The controller 50 may be upgraded/updated in any suitable manner to improve/expand the functionality of the controller 50. For example, software updates may be provided to the controller 50 via a memory device 100 with such updates stored thereon. An update may be transferred to the memory device 100 from a separate computer that obtains the update electronically. Alternatively, the controller 50 may connect directly to the computer via a suitable connection (e.g., serial connection, USB connection 180 (shown in
Operation of the cutter 40 is described hereinafter with reference to
As shown in
As shown in
The cutter 40 may also move in the Y direction relative to the housing, thus avoiding the need for the platform 30 to move in the Y direction. In such an embodiment, the platform 30 may nonetheless be movable in the Y direction between a closed position (similar to that shown in
As shown in
The motorized wheel 220, rack and pinion system 240, and solenoid 260 enable the cutter controller 50 to control the position of the cutter 40 relative to the cutting platform 30 in all three orthogonal X, Y, and Z directions. The sets of cutting instructions on the memory device 100 include X, Y, and Z instructions that enable the cutter controller 50 to use the cutter 40 to cut desired patterns out of a work piece on the cutting platform 30.
The cutter 40 may optionally be mounted to the solenoid 260 to allow relative rotational movement about the Z axis. A servo-motor or other rotational drive element preferably controls the rotational position of the cutter 40 so that the cutter 40 appropriately aligns with the direction that the cutter 40 is moving in the X-Y plane. The set of cutting instructions for each pattern on the memory device 100 may include rotational instructions for appropriately controlling the rotational position of the cutter 40. Alternatively, the cutter controller 50 may calculate the appropriate cutter 40 rotational position based on the X-Y-Z cutting instructions. Alternatively, there may be no active control of the rotational position of the cutter 40 and the cutter 40 may simply be freely rotatable so that it aligns itself with the cutting direction during cutting in a manner similar to how a castor wheel aligns itself with a rolling direction.
The cutter assembly 1000 may also include a mechanism that enables a user to selectively change a cutting depth (i.e., the predetermined distance by which the cutter 1040 extends beyond the work piece contacting surface 1030) for use with different thickness work pieces. Such a mechanism may control a position of the base 1045 relative to the remainder of the cutter carrier 1020. Alternatively, the fixed cutting depth may be sufficiently large to accommodate the thickness of any anticipated work piece.
A locking mechanism 1070 releaseably locks the base 1045 (and attached cutter 1040) within a hole 1020a in the cutter carrier 1020 to enable a user to selectively remove and replace the base 1045 (and cutter 1040), for example when the cutter 1040 becomes dull or when a different pattern making instrument is used. The base 1045 and cutter 1040 may be replaceable as a unit. Alternatively, the cutter 1040 may be replaceably mounted to the base 1045 such that the base 1045 may be reused with replacement cutters 1040.
In the illustrated embodiment, the locking mechanism 1070 comprises a knob 1070 (or bolt or other threaded fastener) that threads into the cutter carrier 1020 and pins the base 1045 in place within the hole 1020a. The base 1045 may include surface features (e.g., notches, protrusions, extrusions, depressions, etc.) that mate with the knob 1060 to positively lock the base 1045 (and cutter 1040) into a fixed position relative to the cutter carrier 1020 (see, for example, the base 510 in
Operation of the floating cutter assembly 1000 is described with reference to
The spring constant of the spring 1060 and degree of compression of the spring 1060 when in the lowered position are preferably set such that the downward bias of the spring 1060 keeps the cutter 1040 cutting through the work piece 1080 at the predetermined cutting depth while allowing the cutter carrier 1020 to float over the contours of the upper surface of the work piece 1080.
In one embodiment, the free length of the spring 1060 is 10.00 mm and the spring 1060 has a spring rate or constant of 0.5 Newtons/mm. The spring 1060 may be precompressed by several mm when the cutter carrier 1020 is in the raised position. When the cutter carrier 1020 is in the lowered position and used with relatively thin paper, the spring 1060 compresses by 4.0 mm, which results in a spring force of 2.0 N. When this spring force is combined with the weight of the cutter carrier 1020, spring 1060, and cutter 1040, the cutter assembly 1000 generates a downward force of about 2.5 N. This downward force is sufficiently small to allow the work piece 1080 to force the cutter carrier 1020 and cutter 1040 upwardly over irregularities, bumps, bubbles, etc. in the work piece 1080. When a thicker card stock is used as the work piece 1080, the spring 1060 compresses by 5.0 mm, resulting in a spring force of 2.5 N. According to other embodiments of the present invention, the cutter assembly 1000 is designed to apply to the work piece a downward force of between 0.25 and 15.0 N when in the lowered position. According to still further embodiments of the present invention, the downward force is between 0.5 and 9.0 N, between 0.5 and 8.0 N, between 0.5 and 7.0 N, between 0.5 and 6.0 N, between 0.5 and 5.0 N, between 0.5 and 4 N, between 1.0 and 10.0 N, between 1.0 and 8 N, between 1.0 and 6 N. between 1.0 and 5.0 N, or between 1.0 and 4.0 N. When the upwardly directed reaction force of the work piece 1080 exceeds this downward force (e.g., when the cutter carrier 1020 traverses a bump in the work piece 1080 during a cutting operation), the cutter carrier 1020 and cutter 1040 move upwardly. Conversely, when the reaction force decreases (e.g., when cutter carrier 1020 moves past the bump), the cutter carrier 1020 and cutter 1040 move downwardly to follow the surface of the work piece 1080.
When the cutter carrier 1020 is in the lower position, it preferably has a floating stroke length that is large enough to enable it to float over anticipated irregularities in work pieces, taking into consideration the thickness of such work pieces. According to one embodiment of the present invention, the stroke length is about 3.0 mm. The stroke length according to other embodiments of the present invention may be greater than 0.1 mm, greater than 0.3 mm, greater than 0.5 mm, between 0.1 and 5.0 mm, between 0.5 and 5.0 mm, between 0.5 and 3.0 mm, or about 2.0 mm.
The desired downward force of the cutter assembly 1000 may also be a function of the surface area of the work piece contacting surface 1030 because the combination of force and surface area determines the pressure exerted on the work piece, and, in turn, the upward pressure and force exerted by the work piece onto the cutter carrier 1020. If the surface area of the work piece contacting surface 1030 is relatively large, the desired downward force may be increased accordingly. According to one embodiment of the present invention, the work piece contacting surface 1030 has a surface area of about 20 mm2. According to one embodiment, when an average thickness work piece is used, the work piece contacting surface 1030 applies a pressure of about 0.125 N/mm2 to the work piece 1080.
The downward force of the cutter assembly 1000 causes the surface 1030 to forcefully contact the work piece 1080, which creates friction that tends to cause the cutter assembly 1000 to resist cutting movement in the X-Y plane relative to the work piece 1080. Similarly, when the cutter carrier 1020 and cutter 1040 encounter irregularities in the work piece 1080 during cutting, the Z-direction downward force of the cutter assembly 1000 further impedes the X-Y movement relative to the work piece 1080. The downward force is therefore preferably limited so that it does not cause the cutter assembly 1000 to bind during cutting operations. To avoid binding, a larger motor/actuator may be used to drive the cutter 1040 and work piece 1080 relative to each other in the X-Y plane. If a larger motor/actuator is impractical or undesired, the downward force may be reduced as much as possible to limit the binding force and allow for the use of weaker, but less expensive, motor(s) to move the cutter 1040 and work piece 1080 relative to each other in the X-Y plane.
In the illustrated embodiment, the downward force is provided by the spring 1060. However, the resilient biasing force may alternatively be provided by any other suitable mechanism. For example, the illustrated solenoid 1010 provides a 3.0 mm stroke based on a large solenoid force. The solenoid 1010 could be modified to weaken its driving force such that its force creates the limited desired resilient downward force. Alternatively, the cutter carrier 1020 and cutter 1040 could be weighted such that their gravitational force provides the desired resilient downward force.
The work piece 1080 is preferably a thin, substantially planar work piece such as paper, cardstock, construction paper, adhesive paper, etc. The cutter 40, 1040 is preferably a paper cutter that is constructed to cut through such a work piece, and may include a blade with a sharp cutting edge.
As shown in
The adhesive layers 320 preferably comprise a relatively low tack, high shear resistance adhesive that has a tacky surface that secures the work piece in place relative to the cutting platform 30 during cutting operations, and releases the work piece without damage after cutting. For example, the adhesive layers 320 may comprise a microsphere adhesive or a soft rubber compound. If the adhesive layer 320 comprises a soft rubber compound, the layer 320 may be cleaned if it becomes clogged with debris such as dust, fibers, etc. that adversely affects the adhesive properties of the layer 320.
The adhesive layer 320 presents several advantages over conventional cutting mats. The adhesive layer 320 adheres to the underside of the work piece without obstructing any of the work piece from a cutter. Consequently, the entire area of the work piece may be cut. Conversely, in conventional cutters that clamp a work piece in place, the clamped portions of the work piece cannot be cut, which results in waste and limits the size of cut patterns. The adhesive layer 320 also advantageously securely holds the entire surface area of the work piece so that the work piece will not wrinkle while being cut. Conversely, in conventional cutters that utilize clamps to secure the work piece, portions of the work piece that are not clamped down may wrinkle during cutting. The adhesive layer 320 helps the apparatus 10 cut paper products that do not include a sacrificial backing layer or an additional adhesive, as is frequently required by conventional cutters.
The removable protective layers 330 cover the adhesive layers 320 to discourage debris/contaminants from sticking to the adhesive layers 320 when the apparatus 10 is not being used. Accordingly, the top removable protective layer 330 is removed prior to use of the apparatus 10 and subsequently replaced after the apparatus 10 is used. The bottom removable protective layer 330 may be removed before the substrate 205 is mounted to the mat 300 so that the bottom adhesive layer 330 secures the substrate 205 to the mat 300. After the top adhesive layer 320 loses its tackiness, the mat 300 may be flipped over so that the bottom adhesive layer 320 is used to secure a work piece to the cutting platform 30. When both adhesive layers lose their tackiness, the mat 300 should be replaced with a new mat 300.
While the illustrated mat 300 is double-sided, a single-side mat could alternatively be used without deviating from the scope of the present invention. For example, the bottom adhesive layer 320 and removable protective layer 330 could be omitted to create a single-sided cutting mat.
While a tacky cutting platform 30 is preferred, the cutting platform may alternatively use work piece clamps to clamp a work piece to the cutting platform. Furthermore, any other suitable securing means (e.g., vacuum table, clamping rollers, etc.) may be used to secure the work piece to the cutting platform without deviating from the scope of the present invention.
According to an alternative embodiment of the present invention, a stationary or rigid platform 30, which constitutes a permanent re-usable part of the apparatus, may be replaced by a flexible backing liner of a work piece, which would serve as a disposable platform. For example, the backing liner may be a paper liner for an adhesive-backed work piece or an adhesive-backed paper liner for a non-adhesive-backed work piece. The backing liner may optionally include surface features like the surface features 200 of the platform 30 to help the controller 50 precisely control the Y direction position of the backing liner and work piece.
As shown in
As shown in
The upper adhesive layer 1120 preferably has a low tack, high shear resistance repositionable adhesive that is designed to discourage a work piece thereon from slipping (i.e., shearing) relative to the mat 1100, while allowing a user to lift the work piece off of the mat 1100 without damage. The upper adhesive layer 1120 preferably has a lower tack than the lower adhesive layer 1150 so that when a user lifts a work piece off of the mat 1100, the work piece will separate from the mat 1100 while the mat 1100 remains adhered to the platform 30.
To help the user differentiate which surface is to face upwardly, and which is to face downwardly, the layers 1130, 1140 may be colored differently. For example, the self-healing layer 1130, may be white or another opaque color, while the substrate 1140 is transparent. Alternatively, indicia, such as a directional indicator (e.g., the work “up”) may be printed on one or both layers 1130, 1140.
The substrate 1140 is preferably more rigid than the self-healing layer 1130, and may be rigid and hard enough that the mat 1100 may be used as a stand-alone cutting board if a user manually cuts a work piece using a knife. Alternatively, the substrate 1140 may be somewhat flexible (e.g., a plastic sheet or a self-healing vinyl sheet) and rely on the supporting platform 30 for rigidity. The substrate 1140 or the self-healing layer 1130 may be omitted without deviating from the scope of the present invention.
As an alternative, the cutting mat 300, 400, 1100 itself could serve as the platform 30 for the apparatus 10. When the operator wants to replace the mat 300, 400, the cutter controller 50 could be operated to discharge the mat 300, 400, 1100 in the Y direction, and then the replacement mat 300, 400 could be fed back into the apparatus 10. Such a mat 300, 400 could be provided with the surface features 200 for improved control.
The cutter 40 may be interchangeably mounted to the apparatus 10 to allow an operator to easily and quickly replace the cutter 40 with a new, sharp cutter 40.
The cutter 40 may also be interchangeable with other types of pattern making instruments (e.g., an embossing instrument 570 (FIGS. 17A&B), a perforating instrument 580 (FIGS. 18A&B (perforating features being disposed along the circumference of the “pizza cutter” style wheel)), or a journaling instrument 560 (FIGS. 16A&B)), which may be quickly and easily attached to the apparatus 10 in place of the cutter 40 using any suitable releasable holding mechanism. As discussed above, the cutting mat 300 is designed for use with the cutter 40. The cutting mat 300 may be interchangeable with other types of pattern making mats that are better suited to the selected pattern making instrument. A storage compartment may be provided on the apparatus 10 to store the pattern making instruments 40, 570, 580, 560 that are not being used.
If a journaling instrument is used, a mat having a harder, but tacky, upper surface may be used so that the journaling instrument does not pierce the work piece. A journaling mat could be incorporated into the platform 30, so that a journaling instrument could be used by simply removing the mat 300. Alternatively, a replaceable journaling mat could be used. A replaceable journaling mat may be identical to the mat 400 shown in
Alternatively, a mat could include a cutting mat on one side and a journaling mat on the other side. Such a mat could be identical to the mat 400 shown in
If an embossing instrument is used, a user may place a work piece onto the mat 300 and then place a low-friction protective cover such as a thin deformable protective sheet (e.g., a thin plastic sheet) on top of the work piece. The protective sheet reduces friction between the embossing instrument 570 (see
According to one embodiment of the present invention, the mat 800 may be flipped over for use during journaling procedures. The hardness of the substrate layer 810 facilitates the use of a journaling instrument 560 (see
A user selects the appropriate combination of mat and pattern making instrument and attaches both to the apparatus 10 in order to perform the desired pattern making operation. When the user wishes to perform a different type of pattern making operation, the user simply replaces the attached mat and pattern making instrument with the appropriate new combination of mat and pattern making instrument.
The foregoing description is included to illustrate the operation of the preferred embodiments and is not meant to limit the scope of the invention. To the contrary, those skilled in the art should appreciate that varieties may be constructed and employed without departing from the scope of the invention, aspects of which are recited by the claims appended hereto.
This application is a continuation-in-part of U.S. Utility application Ser. No. 11/272,295, titled “Automatic Pattern Making Apparatus,” filed Nov. 14, 2005, which claims the benefit of priority from U.S. Provisional Application No. 60/627,179, titled “Automatic Pattern Making Apparatus,” filed Nov. 15, 2004. This application also claims the benefit of priority from U.S. Provisional Application No. 60/763,888, titled “Automatic Pattern Making Apparatus,” filed Feb. 1, 2006. This application also claims the benefit of priority from U.S. Provisional Application No. 60/886,767, titled “Automatic Pattern Making Apparatus,” filed Jan. 26, 2007. The entire contents of all of these applications are incorporated herein by reference.
Number | Date | Country | |
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60627179 | Nov 2004 | US | |
60763888 | Feb 2006 | US | |
60886767 | Jan 2007 | US |
Number | Date | Country | |
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Parent | 11272295 | Nov 2005 | US |
Child | 11670151 | Feb 2007 | US |