The present invention relates generally to a window shutter and a method of making the same and particularly to an indoor plantation fan top window shutter.
Plantation fan top window shutters are currently built by hand by trained craftsmen. Manufacturers of window shutters use a variety of wood working hand tools, complex formulas and highly trained expensive craftsmen. The present invention provides additional ways for manufacturing plantation top window shutters that reduce costs, improve quality, and reduce dramatically the time it takes to build them.
The present invention provides a plantation window shutter, comprising a frame and a plurality of shutter blades pivotably supported by the frame in a fan configuration. The frame comprises a front surface and a rear surface. The rear surface has a plurality of upper grooves and a plurality of lower grooves, each upper groove being axially aligned with a respective lower groove. Each of the shutter blades has a longitudinal pivotal axis and a top pivot and a bottom pivot aligned along the axis, the top pivot and the bottom pivot being received in respective upper groove and the lower groove for pivotal motion therein. At least one member is attached to the rear surface disposed to bridge over the upper grooves and the lower grooves, thereby to capture the top and bottom pivots within respective the upper grooves and the lower grooves.
The present invention also provides a method for manufacturing a plantation window shutter comprising a frame made of two substantially identical members attached together and a plurality of shutter blades pivotably supported by said frame, the method comprising the steps of providing shutter blade pivots with shaft portions and attachment portions; providing at least one sheet material; cutting the at least one sheet material with a CNC router machine to the shape of the frame members and the shutter blades; cutting grooves in one of the frame members with the CNC router machine to receive the shaft portions; cutting slots at each end of the shutter blades with the CNC router machine to receive the attachment portions; and assembling the frame members and the shutter blades.
a)-17(i) show the various exemplary input displays for entering window measurements.
a)-18(b) illustrate matching the width of a rectangular window shutter blade with the outer width of a shutter blade of
a)-19(f) illustrate the various cross-sectional profiles of a frame for use with the shutter of
a)-21(m) illustrate the various shutter drawings generated by the system based on the window measurement inputted by the customer.
a)-22(g) show the various cuts made by the CNC router machine in one board to make some of the components of a shutter.
a)-23(f) show the various cuts made by the CNC router machine in another board to make the rest of the components of a shutter.
a)-24(f) show the various cuts made by the CNC router machine in a single board to make the components of a shutter.
Referring to
The frame 4 has an upper portion 12 and a lower portion 14. The blades 10 have top portions 16 pivotably attached to the upper portion 12 and bottom portions 18 pivotably attached to the lower portion 14 with pivots 20, as will be described below. The upper 12 may be arcuate or angular (see
Referring to
Referring to
A plurality of pivots 20 are each attached to a respective top portion 16 and bottom portion 18 of a shutter blade 10. Referring to
Each pivot 20 has a shaft portion 42 and an attachment portion 44. The shaft portion 42 is receivable within respective grooves 24 and 26 in the rear member 8. The attachment portion is receivable with the respective slot 40 in each blade 10. The attachment portion 44 has a T-shaped portion 46 when viewed in cross-section that is receivable within the T-shaped slot 40, preferably with a friction fit, as shown in
A washer 50, preferably rectangular so that it can be held stationary while the shutter blade 10 is actuated and made of compressible material, such as rubber or elastomeric plastic, is attached to the shaft portion 42 of each bottom-disposed pivot 20. The washer 50 has a friction fit with the shaft portion 42 that allows the respective shutter blade 10 to be pivoted within its range of motion and be held secured to its pivoted position without looseness. Each washer 50 is disposed within the respective slot 28. A portion of the washer 50 is also received within the groove 34 on the opposite rear surface 30 of the front member 6.
A washer 52 is attached to the shaft portion 42 of each top-disposed pivot 20. The washer 52 acts as a spacer between the bottom edge of the upper portion 12 of the frame 6 and the top edge of the shutter blade 10.
Referring to
It should also be understood that the washer 50 may be disposed on the shaft portion 42 of the respective top-disposed pivot 20, instead of being at the bottom-disposed shaft portion 42. The corresponding slots 28 and 34 on the front and rear surfaces 14 and 30, respectively, would then be disposed transversely across each upper groove 24 and on the front surface 14 and on the opposite rear surface 30, shown as slot 53 and groove 55, respectively, as shown in
Referring to
Referring to
The shutter 2 is preferably made from wood or plastic sheet material. The various components of the shutter 2 are preferably cut from the sheet material using a CNC router machine 76, such as Camaster Cobra X3, made by Camaster CNC, Inc., Calhoun, Ga. 30701.
The CNC router machine 76 is computer driven and is well known in the art. The machine 76 includes a table surface 77 on which a board 80 to be cut is placed. Alignment or indexing pins 82 hold the board 80 in precise location when the board is turned over for cutting on the other side. A router head 84 is movable on the X-Y plane of the table surface 78. The router 84 is also movable on the Z-axis, which is perpendicular to the X-Y plane.
The router computer 78 is preferably connected to a server 86 via the internet or other network connections. The web server 86 includes software that generates the programming steps required to drive the router machine 76 to cut the components of the shutter 2 from the board 80. Based on the measurements of a window in which the shutter 2 will installed, the software in the server 86 will generate the programming steps to drive the router head 84. The server 86 may be connected to a number of other router machines 76 in various locations. An operator for each machine need not know how to program the machine, since the required programming is downloaded to the router machine computer 78 from the server 86 after the operator provides the window measurements.
An example of the process of making and assembling the various components of the shutter 2 will now be described. An operator inputs at step 88 the numeric measurements of a window in which the shutter 2 will be installed. Examples of the type of shutters and the required measurements are shown in
A program 93 resident within the server 86 or in another computer connected to the server 86 converts the operator's input at steps 88 and 90 into a G-code file 94, which is downloaded to the router machine computer 78. In addition, a drawing file 96 is also generated and downloaded to the router machine computer 78. The drawing file 96 generates a drawing of the shutter ordered by the operator as a visual check to the operator on what the shutter looks like before the components are cut by the router machine 76.
The program 93 includes dimension files 98, louver and hub sizing files 100, frame deduction files 102, types of fan tops files 104 and G-code generating files 106.
The dimension files 98 are a database developed around the sizes of the shutter shown in
Examples of types of fan tops included in the files 104 are shown in
Louver and hub sizing files 100 provide the size of the hub portion 38 of the frame 4 and the number of shutter blades 10 appropriate for the size of the window in which the shutter 2 will be installed. As the shutter increases in size, the hub portion 38 (see
The frame deduction files 102 allow for reductions in measurements provided at step 88 to accommodate a frame if ordered by the operator to be included with the shutter 2. Examples of frame profiles provided in the program are shown in
Examples of the various shutter drawings generated and provided to the operator to show the shutter configuration based on the input at step 88 is shown in
The G-code machine file 94 is standard G-code software used for motion control of the cutting tool of the router machine 76 that does the actual work. The G-code machine file 94 includes router tool selection, machine feed rates, tool speeds, tool paths and cutting depths. The G-codes direct the machine actions, such as rapid move; controlled feed move in a straight line or arc; series of controlled feed moves for boring holes; cutting a workpiece to a specific dimension; cutting a decorative profile shape to the edge of a workpiece; change tool; etc. The generation of G-codes for driving the router machine 76 are well known in the art. The G-codes may be generated using a standard drawing software package, such as AUTOCAD, available from Autodesk, Inc., 111 McInnis Parkway, San Rafael, Calif. 94903 and a standard G-code generating software package, such as ALPHACAM, available from Planit Solutions, Inc., 3800 Palisades Drive, Tuscaloosa, Ala. 35405. For example, referring to
The generation of the G-coded machine file 94 may also be automated by storing a database of G-code files that would be used in cutting any type and size of shutter for which the system is designed. These G-code files include all the necessary machine operations, such as the tool path, tool selection, depth of cut, tool rpm, feed speed, etc. for cutting the parts for any type and size of shutter stored in the system. Data on the dimensions of the ordered shutter, including the number of shutter blades, the hub portion size and any frame deduction generate a drawing file comprising several layered views. Each view is then associated with the appropriate G-code files already stored in the system. All the selected G-code files for all the views are then sent to the router machine computer 78 via the internet or other network connections.
The cutting process will now be described with reference to a half-circle shutter generally shown in
The first board will provide the front member 6 of the frame 4 and eight shutter blades 10. Referring to
Referring to
Referring to
Referring to
The various parts are then assembled, as shown in
Referring to
Referring to
Referring to
Referring to
Referring to
While this invention has been described as having preferred design, it is understood that it is capable of further modification, uses and/or adaptations following in general the principle of the invention and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains, and as may be applied to the essential features set forth, and fall within the scope of the invention or the limits of the appended claims.
This nonprovisional utility application claims priority to and is a divisional application of U.S. patent application Ser. No. 12/752,523 filed Apr. 1, 2010 and since issued Jan. 1, 2013 as U.S. Pat. No. 8,341,887 which is a nonprovisional application of and claims the benefit under 35 USC §119(e) to U.S. Provisional Patent Application No. 61/212,079, filed Apr. 7, 2009, all of which are incorporated herein in their entirety by this reference.
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Number | Date | Country | |
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Parent | 12752523 | Apr 2010 | US |
Child | 13731282 | US |