This invention relates generally to writing boards, and more particularly to reusable and foldable boards that permit writing to be easily removed.
In one embodiment of the invention, a writing board comprises a substrate, comprising a front panel, a rear panel opposite the front panel, and a plurality of spaced apart ribs connecting the front panel to the rear panel, wherein the front panel and the rear panel are integrally formed with the plurality of ribs. The writing board of this embodiment further includes at least one backslit formed in the rear panel, at least one living hinge formed in the front panel opposite the at least one backslit to form at least one outer panel, and at least one holding mechanism coupled to the at least one outer panel to maintain the outer panel in one of a substantially open, unfolded position or a substantially closed, folded position.
In this embodiment, the plurality of ribs may be oriented in a widthwise direction, a lengthwise direction, both a widthwise direction and a lengthwise direction, or a diagonal direction of the substrate. The plurality of ribs may extend from a first end of the substrate to a second end of the substrate opposite the first end. The writing board may further include a film affixed to at least one of the front or rear panels of the substrate, the film having a surface adapted to erasably receive writing thereon, wherein the film may be a polyester, a UV cured polyurethane, or a polypropylene.
The at least one holding mechanism of this embodiment may comprise a resilient member, at least one cable connected to at least one end of the resilient member, and at least one anchor connected to the at least one cable and to the at least one outer panel, wherein the at least one holding mechanism may be housed in at least one trim panel removably affixed to a peripheral edge of the substrate.
Alternatively, a portion of the at least one holding mechanism may be housed in at least one flute formed between two adjacent ribs, the front panel, and the rear panel of the substrate. In this configuration, the at least one holding mechanism may further comprise at least one hinge comprising a plurality of flute mounts, wherein the flute mounts may be mounted inside the at least one flute on respective sides of the at least one backslit to secure the at least one hinge to the substrate and to permit articulation of the at least one outer panel.
The at least one holding mechanism of the writing board may exert a force to the at least one outer panel that varies during articulation of the at least one outer panel. The force increases from a first minimum when the at least one outer panel is in the substantially open, unfolded position to a maximum when the at least one outer panel is in a partially articulated position, then decreases to a second minimum when the at least one outer panel is in the substantially closed, folded position.
The writing board of this embodiment may further include a writing instrument holder affixed to the substrate, comprising an eraser mount for detachably receiving an eraser, and at least one clip for detachably receiving at least one writing instrument, wherein the at least one outer panel is configured to avoid interference with the writing instrument holder when the at least one outer panel is articulated to and from the substantially closed, folded position.
In another embodiment of the invention, a writing board comprises a substrate comprising a front panel and a rear panel separated by a spacer, wherein the front panel and the rear panel are integrally formed with the spacer, at least one backslit formed in the rear panel, at least one living hinge formed in the front panel opposite the at least one backslit to form at least one outer panel, and at least one holding mechanism operable to maintain the outer panel in one of a substantially open, unfolded position or a substantially closed, folded position.
The writing board may further include a film affixed to at least one of the front or rear panels of the substrate, the film having a surface adapted to erasably receive writing thereon. The substrate of the writing board may comprise one of corrugated paper, a foam, a metal, or a plastic. The spacer may be formed as a solid, a porous solid, a plurality of spaced apart ribs, a plurality of honeycomb cells, or a plurality of corrugations. The at least one holding mechanism may be housed in at least one trim panel removably affixed to a peripheral edge of the substrate. The at least one holding mechanism may exert a force to the at least one outer panel that increases from a first minimum when the at least one outer panel is in the substantially open, unfolded position to a maximum when the at least one outer panel is in a partially articulated position, then decreases to a second minimum when the at least one outer panel is in the substantially closed, folded position.
In yet another embodiment, a writing board comprises a substrate having a front panel connected to a rear panel by a plurality of ribs, wherein at least one of the front or rear panels comprises a dry erase property, and a plurality of outer panels formed in the substrate, the plurality of outer panels configured to articulate from a substantially open, unfolded position to a substantially closed position and from the substantially closed position to the substantially open, unfolded position, wherein the plurality of outer panels are maintainable in the substantially open, unfolded position or the substantially closed, folded position by a plurality of holding mechanisms coupled to the plurality of outer panels.
The plurality of holding mechanisms may exert a force upon the plurality of outer panels that initially increases when any one of the plurality of outer panels is articulated from a substantially open, unfolded position or a substantially closed, folded position, then decreases when any one of the plurality of outer panels is articulated past a stationary point of inflection. The writing board may further include a writing instrument holder affixed to the substrate, comprising an eraser mount for detachably receiving an eraser, and at least one clip for detachably receiving at least one writing instrument, wherein the at least one outer panel is configured to avoid interference with the writing instrument holder when the at least one outer panel is articulated to and from the substantially closed, folded position. The writing board may further comprise a mount affixed to the rear panel of the substrate to permit detachable affixation of the writing board to a surface, a plurality of backslits formed in the rear panel to permit the plurality of outer panels to articulate, and a plurality of living hinges formed in the front panel opposite the plurality of backslits.
A better understanding of the objects, advantages, features, properties and relationships of the invention will be obtained from the following detailed description and accompanying drawings which set forth illustrative embodiments that are indicative of the various ways in which the principles of the invention may be employed.
For a better understanding of the invention, reference may be had to preferred embodiments shown in the following drawings in which:
a-c illustrate front elevational views of another embodiment of the invention showing the left and right side panels fully closed;
a-c illustrate partial right side elevational views of the eraser and writing utensil holder shown in
a-e illustrates front elevational views of another embodiment of the invention showing the left and right side panels fully closed;
While this invention is susceptible of embodiments in many different forms, there is shown in the drawings and will herein be described in detail, a preferred embodiment of the invention with the understanding that the present disclosure should be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspects of the invention to the embodiments illustrated herein. For the sake of simplicity, like numerals are used to describe identical or substantially identical components where appropriate.
Turning now to the figures, wherein like reference numerals refer to like elements, there is illustrated in
As shown in
Substrate 30 may comprise any one of a number of materials that are lightweight, strong and inexpensive. For example, substrate 30 may be formed from a plastic, such as polypropylene copolymer, a metal, such as aluminum, or a composite material, or may be formed from other common materials of construction, such corrugated paper or foam core. Substrate 30 may be formed with a solid, corrugated, porous, or hollow structure, such as an I-beam structure, a honeycomb structure, a cellular structure, or any one of a number of other structural forms to provide a lightweight, strong, and inexpensive structure.
If an I-beam internal structure is used, the ribs of the I-beam may be oriented either horizontally (i.e. widthwise), vertically (i.e. lengthwise), or diagonally, for example, but ribs that run horizontally may tend to provide better control of the overall width of writing board 10. Horizontally oriented ribs also may eliminate scrap and yield the lowest cost to manufacture substrate 30. If substrate 30 is made from a plastic, such as polypropylene, substrate 30 may be manufactured having front face member 34 (as shown in
Referring to
Substrate 30 of writing board 10 may alternatively be fabricated in separate pieces or panels that may be joined together via a separate front face member 34 made of, for example, polypropylene, that is laminated or otherwise adhered to the separate pieces or panels of substrate 30. In this way, writing board 10 may only require one or more front slits 36, if at all, to relieve excess surface tension in front face member 34 as back slitting would be obviated by starting with separate pieces or panels for substrate 30.
If substrate 30 does not alone have dry erase properties, writing board 10 may be configured to include film 50 on one or both of front face member 34 and rear face member 38 or on predetermined portions thereof. Film 50 may comprise any biaxially-oriented polyester film, UV cured polyurethane, polypropylene, or any other product, surface treatment, or coating that may provide substrate 30 with dry erase properties. Film 50 or such other products, surface treatment, or coating may have magnetic properties or non-magnetic properties. Film 50 may act as a carrier for the application of dry erase treatments or coatings if film 50 itself does not have dry erase properties. Depending on the chosen material of film 50 or the subsequent treatment or coating that may be applied to film 50, if any, the thickness of film 50 may range from approximately 0.5 mil thick to approximately 50 mils thick. Film 50 may be laminated, deposited, or adhered to substrate 30 using conventional techniques known to one of skill in the art.
As shown in
Top trim 60 and bottom trim 64 may provide aesthetic enhancement to the top and/or bottom edge of writing board 10. Either or both of top trim 60 and bottom trim 64 may also provide hidden mechanical enhancement for the operation of writing board 10. For example, top trim 60 and/or bottom trim 64 may include hinge 65 and holding mechanism 70. As described more fully below, holding mechanism 70 may be configured to hold side panels 20, 24 in either the open position or the closed position, as may be desired by the user. Holding mechanism 70 may itself include resilient member 71, which may comprise a spring, for example, and cable 72, cable clamp 73, and anchors 74, 75. Whether holding mechanism 70 is installed in both top trim 60 and bottom trim 64 depends on the force required to maintain side panels 20, 24 in either the open or the closed position and the size of writing board 10.
As shown in
During articulation of left side panel 20 to fully close left side panel 20 from the fully open position, for example, resilient member 71 initially elongates because the distance to left anchor 74 increases. However, as articulation continues beyond a point approximately midway in the articulation of left side panel 20, the force to continue to fully close left side panel 20 will begin to decrease resulting in a decrease in the elongation of resilient member 71. The same result occurs when opening left side panel 20 when initially in the fully closed position, and also when opening or closing right side panel 24. Consequently, the force to open or close either left side panel 20 and right side panel 24 is at a maximum somewhere along the path of articulation of side panels 20, 24 from a fully open position to a fully closed position, or vice versa, and is at a minimum in the fully open position or fully closed position to create a tendency for maintaining either the open or the closed position for side panels 20, 24.
The overall size of writing board 10 may dictate the size and quantity of holding mechanism 70 that may be employed. For example, for a relatively small 9″ W×12″ L (closed) writing board 10, only one holding mechanism 70 may be required, if at all, which may be positioned in bottom trim 64.
If, for example, writing board 10 measures 18″ W×24″ L (closed), then one holding mechanism 70 may be required at the bottom of writing board 10 and another holding mechanism 70 may be required at the top of writing board 10 to assure proper operation and control of the opening and closing of side panels 20, 24. Thus, writing board 10 may include top trim 60, as shown in
If the size of writing board 10 increases still further to, for example, 36″ W×48″ L (closed), a combination of four holding mechanisms 70 may be employed using the same techniques described above to hold open or hold closed side panels 20, 24. In this way, left side panel 20 may itself have a holding mechanism 70 be positioned in top trim 60 and also in bottom trim 64 to hold open or hold close left side panel 20. Right side panel 24 may be similarly configured with a holding mechanism positioned in top trim 60 and also in bottom trim 64 to hold open or hold closed right side panel 24. For each resilient member 71, the end opposite the respective anchors 74, 75 would require anchoring to trims 60, 64, for example, or to the other of respective resilient member 71 that is located within the same center slot 66 in the same trim 60 or 64. Alternatively, any one of a range of possible known techniques for fixating the opposing end of resilient member 71 may be employed in foldable writing board applications having multiple resilient members 71.
Top trim 60 and bottom trim 64 may be made from any durable, low cost, and lightweight material that may, for example, be injection molded, such as high impact polystyrene ABS plastic, or polycarbonate. In an economy version of writing board 10, however, writing board 10 may not necessarily include either top trim 60 or bottom trim 64. Although no holding mechanism 70 as described above would be present, the economy version of writing board 10 may, instead, include a magnet installed or embedded in the respective center, left, and/or right panels 16, 20, 24 to magnetically hold side panels 20, 24 in the closed position.
Referring again to
In some embodiments of writing board 10, rear face member 38 may include back slit 39, but front face member 34 may not necessarily include front slit 36 thus forming a single living hinge 35 in front face member 34. Whether front face member 34 includes one or more front slits 36, which facilitates the opening and closing of side panels 20, 24 by reducing the natural tendency of side panels 20, 24 to always remain in the open position, may depend, for example, on the thickness of front face member 34, the stiffness of the chosen material for substrate 30 and/or film 50 (if present), the overall size of writing board 10, and the size and quantity of holding mechanism 70.
As shown in
Left side panel 20 and right side panel 24 may comprise any number of configurations, such as having corners that are squared, such as shown in
Another embodiment of the present invention is shown in
For example, as shown in
Like substrate 30, substrate 130 may itself have properties conducive for writing thereon to be easily removed. Alternatively, as more fully described below, a film or other surface treatment or coating may be applied to one or more surfaces of substrate 130 for this purpose.
Substrate 130 may comprise any one of a number of materials that are lightweight, strong and inexpensive. For example, substrate 130 may be formed from a plastic, such as polypropylene copolymer, or may be formed from other common materials of construction, such as corrugated paper or foam core. Substrate 130 may be formed with a solid, corrugated, porous, or hollow structure, such as an I-beam structure, a honeycomb structure, a cellular structure, or any one of a number of other structural forms to provide a lightweight, strong, and inexpensive structure.
If an I-beam internal structure is used, the ribs of the I-beam may be oriented either horizontally, vertically, or diagonally, for example, but ribs that run horizontally may tend to provide better control of the overall width of writing board 100. Horizontally oriented ribs also may eliminate scrap and yield the lowest cost to manufacture substrate 130. In addition, as described below, horizontally oriented ribs may facilitate the installation and securement of panel holding mechanism 170. If substrate 130 is made from a plastic, such as polypropylene, substrate 130 may be manufactured having front face member 134 (as shown in
If substrate 130 does not alone have dry erase properties, writing board 100 may be configured to include dry erase film 150 (as indicated on
Unlike writing board 10, however, writing board 100 may not necessarily include a top trim or a bottom trim. And if a top or a bottom trim is included, holding mechanism 170 of writing board 100, which may help to maintain the open or closed position of panels 120 and 124, may not necessarily be mounted in the top or bottom trim. Instead, one or more sets of holding mechanism 170 may be integrated internally in writing board 100 within one or more internal flutes 184 of writing board 100, thus minimizing the number of parts needed for writing board 100.
As shown in
Like writing board 10, as shown in
While specific embodiments of the invention have been described in detail, it will be appreciated by those skilled in the art that various modifications and alternatives to those details could be developed in light of the overall teachings of the disclosure. Accordingly, the particular method disclosed is meant to be illustrative only and not limiting as to the scope of the invention which is to be given the full breadth of the appended claims and any equivalents thereof.
This application claims priority to U.S. Provisional Patent Application Ser. No. 60/910,596 filed on Apr. 6, 2007, and also to U.S. Provisional Patent Application Ser. No. 60/981,346 filed on Oct. 19, 2007, both of which are incorporated herein by reference in their entirety.
Number | Name | Date | Kind |
---|---|---|---|
369663 | Swaney | Sep 1887 | A |
2142547 | Anderson | Jan 1939 | A |
2404563 | Berliner | Jul 1946 | A |
2559357 | Holt, Jr. | Jul 1951 | A |
2631046 | Stephens | Mar 1953 | A |
3202471 | Wilson | Aug 1965 | A |
3550291 | Albright | Dec 1970 | A |
4051609 | Boursaw | Oct 1977 | A |
4108083 | Espinosa | Aug 1978 | A |
4239170 | Planebo | Dec 1980 | A |
4531564 | Hanna | Jul 1985 | A |
4555128 | White et al. | Nov 1985 | A |
4610414 | Schuch | Sep 1986 | A |
4711046 | Herrgord | Dec 1987 | A |
4759520 | Levine | Jul 1988 | A |
4828502 | Leahy | May 1989 | A |
4960383 | Smith et al. | Oct 1990 | A |
5035626 | Persing | Jul 1991 | A |
5099594 | Reas et al. | Mar 1992 | A |
5129609 | Tobin | Jul 1992 | A |
5131448 | Miller | Jul 1992 | A |
5131849 | Perrero | Jul 1992 | A |
5152490 | Deutsch | Oct 1992 | A |
5176522 | Robertson, Jr. | Jan 1993 | A |
5388689 | Kroop et al. | Feb 1995 | A |
5422155 | Spence, Jr. | Jun 1995 | A |
5492476 | Ball et al. | Feb 1996 | A |
5515900 | West et al. | May 1996 | A |
5570735 | Chu | Nov 1996 | A |
D377948 | Pruhs | Feb 1997 | S |
5727952 | Schenck et al. | Mar 1998 | A |
5775919 | Gardner | Jul 1998 | A |
5938449 | Masson et al. | Aug 1999 | A |
6007891 | Davis et al. | Dec 1999 | A |
6139331 | Owen | Oct 2000 | A |
6155325 | Schirer | Dec 2000 | A |
6164976 | Wilson | Dec 2000 | A |
6241528 | Myers | Jun 2001 | B1 |
6292830 | Taylor et al. | Sep 2001 | B1 |
6374751 | With | Apr 2002 | B1 |
D459756 | Lio et al. | Jul 2002 | S |
6450401 | Hirota et al. | Sep 2002 | B1 |
6453518 | Adams et al. | Sep 2002 | B1 |
6582236 | Dian et al. | Jun 2003 | B1 |
6620500 | Sweet et al. | Sep 2003 | B2 |
6647652 | Seiber et al. | Nov 2003 | B1 |
6648051 | Young | Nov 2003 | B1 |
6663073 | Church | Dec 2003 | B1 |
6666424 | Richardson | Dec 2003 | B2 |
6682352 | Lopez | Jan 2004 | B2 |
6751915 | Crowley | Jun 2004 | B2 |
6837715 | Beno | Jan 2005 | B2 |
6895704 | Ives et al. | May 2005 | B2 |
D507302 | Chen et al. | Jul 2005 | S |
D507812 | Cesaroni et al. | Jul 2005 | S |
D509247 | Nash | Sep 2005 | S |
D516498 | Eskandry | Mar 2006 | S |
D521068 | Newbould | May 2006 | S |
7178778 | Lee | Feb 2007 | B2 |
7185694 | Dunn et al. | Mar 2007 | B2 |
7293993 | Fedorov et al. | Nov 2007 | B2 |
7568915 | Lavoie | Aug 2009 | B1 |
20010040207 | Richardson | Nov 2001 | A1 |
20020009703 | Owen | Jan 2002 | A1 |
20040091849 | Gallant et al. | May 2004 | A1 |
20040148832 | Albenda | Aug 2004 | A1 |
20040251289 | Chretien et al. | Dec 2004 | A1 |
20050136390 | Gallbraith Coates | Jun 2005 | A1 |
20050236347 | Cole et al. | Oct 2005 | A1 |
20060024463 | Gustafson et al. | Feb 2006 | A1 |
20060266779 | Mozer et al. | Nov 2006 | A1 |
20070071536 | Rhodes | Mar 2007 | A1 |
20080248456 | Cheris et al. | Oct 2008 | A1 |
Number | Date | Country |
---|---|---|
WO2008124556 | Oct 2008 | WO |
WO2008124558 | Oct 2008 | WO |
Number | Date | Country | |
---|---|---|---|
20080286744 A1 | Nov 2008 | US |
Number | Date | Country | |
---|---|---|---|
60910596 | Apr 2007 | US | |
60981346 | Oct 2007 | US |