Holder for sheet material

Information

  • Patent Grant
  • 6453518
  • Patent Number
    6,453,518
  • Date Filed
    Friday, August 4, 2000
    24 years ago
  • Date Issued
    Tuesday, September 24, 2002
    22 years ago
Abstract
An apparatus for holding sheet-like material, comprising an elongated frame. The frame includes a rear wall, a front wall, and an adjoining wall. The front and rear walls each have a free end, a joined end, and an interior side. The front and rear walls are disposed in opposing spaced relation such that their interior sides faces each other. The adjoining wall connects the joined ends of the rear and front walls together. The interior side of the rear wall includes a pair of spaced-apart projections at the free end of the rear wall. The interior side of the front wall has a curved portion at the free end of the front wall. The curved portion is in tight mating contact with the pair of projections. The free ends define an entry through which the sheet-like material is to be inserted. The entry is normally closed, and is openable by urging apart the front and rear walls. The rear, the front and the adjoining walls, together, define an elongated hollow that is configured to accommodate a wire binding. The adjoining wall contains a first recess configured to carry a writing implement when holding the sheet-like material in a vertical orientation. The front wall contains a second recess configured to carry a writing implement when holding the sheet-like material in a horizontal orientation.
Description




BACKGROUND OF THE INVENTION




1. Technical Field




The present invention relates generally to hangers, holders, mounts, and supports for articles, and more particularly to a device that can hold, hang, support, mount or attach to a single sheet or multiple sheets of sheet-like material.




2. Background Art




A number of hangers, holders, mounts, and supports for single or multiple sheet-like material have been proposed. Examples of such devices are disclosed in the following U.S. Pat. Nos: 5,711,430 (1998) to Andersen et al.; 4,899,974 (1990) to Wear et al.; 4,773,545 (1988) to Jones; 4,629,075 (1986) to Hutten; 4,105,127 (1978) to Höll; 4,010,517 (1977) to Kapstad; 3,814,368 (1974) to Freed; 3,606,507 (1971) to Williams, Jr.; 3,399,429 (1968) to Goodman; 3,591,013 (1971) to Von Herrmann; 3,168,954 (1965) to Von Herrmann; and 1,428,900 (1922) to Oppenheimer.




U.S. Pat. Nos. 5,711,430 to Andersen et al., 3,814,368 to Freed, 3,591,013 to Von Herrmann, 3,399,429 to Goodman, and 3,168,954 to Von Herrmann all disclose sheet hangers requiring at least one sheet-clamping or wedging roller or ball. Single and multiple sheet articles may be hung, as suggested, e.g., by Von Herrmann U.S. Pat. No. (3,168,954). Goodman's hanger may also be used in the horizontal position. While these hangers have proven to be effective in some applications, they all suffer from the drawback of requiring more than one part. Further, they require at least one moving part. The requirement for multiple and moving parts normally leads to higher manufacturing and assembly costs. In addition, moving parts are more prone to wear and failure, or to jamming, than non-moving or single-piece articles of manufacture. Moreover, the hangers or holders proposed in these patents do not offer any ancillary holding capability, such as for pens or other implements.




U.S. Pat. Nos. 4,773,545 to Jones, 4,105,127 to Höll, and 4,010,517 to Kapstad, all disclose sheet hangers requiring at least one resilient or spring-like insert. Single and multiple sheet articles may be hung, as suggested, e.g., by Jones (in FIG.


5


). While these hangers have also proven to be effective in some applications, they too suffer from the drawback and attendant costs of requiring more than one part. In addition, no ancillary holding capability (e.g., a pen tray) is suggested.




U.S. Pat. Nos. 4,899,974 to Wear et al., 4,629,075 to Hutten, 3,606,507 to Williams, Jr., and 1,428,900 to Oppenheimer, all disclose single-piece hangers. The hangers in Wear et al. and Hutten are made of a single extruded piece of plastic or plastics. However, they are designed primarily for hanging a single sheet of material. Their effectiveness for hanging multiple sheets is not clear. The hanger in Oppenheimer has an additional capability for holding a pencil. However, Oppenheimer does not appear to be suitable for holding a single sheet. Williams, Jr. discloses a conventional compression-type holder which does not easily receive a single flexible sheet.




OBJECTS AND SUMMARY OF THE INVENTION




It is therefore an object of the present invention to provide a holder for sheet material that avoids the limits and problems associated with the prior art.




It is another object of the present invention to provide a holder that is effective for hanging both single and multiple sheet products.




It is a further object of the present invention to provide a holder that is effective for hanging single-sheet erasable and laminate products.




It is yet another object of the present invention to provide a holder that is configured to hang wire bound sheet products.




It is yet a further object of the present invention to provide a sheet holder that contains a tray or receptacle for carrying a writing implement or other elongated implement when the holder is oriented to hang a sheet or sheets vertically.




It is still another object of the present invention to provide a sheet holder that contains a tray or receptacle for carrying a writing implement or other elongated implement when the holder is oriented to hold a sheet or sheets on a horizontal surface.




It is still a further object of the present invention to provide a holder for sheet material that is constructed of a single, extruded piece of material, to simplify manufacturing and assembly steps, minimize overall unit cost, and improve reliability.




It is yet still another object of the present invention to provide a sheet holder that mounts to a vertical surface by means of, e.g., magnetic strips, double-sided foam tape or mechanical fasteners.




These and other objects are attained in accordance with the present invention, a preferred embodiment of which will now be summarily described. In the preferred embodiment, an apparatus for holding a single sheet or multiple sheets of sheet-like material comprises an elongated frame. The frame includes a rear wall, a front wall, and an adjoining wall. The rear wall has a free end, a joined end, and an interior side. The front wall has a free end, a joined end, and an interior side. The front and rear walls are disposed in substantially opposing spaced relation such that the interior side of the front wall generally faces the interior side of the rear wall. The adjoining wall connects the joined ends of the rear and front walls together.




The interior side of the rear wall includes a pair of spaced-apart projections running along the free end of the rear wall. The interior side of the front wall has a curved portion at the free end of the front wall. The curved portion projects toward the interior side of the rear wall and is in tight mating contact with the pair of projections.




The free ends define an elongated entry through which a single sheet or multiple sheets are to be inserted. The entry is normally closed by the tight mating contact of the curved portion and the pair of projections. The entry is openable by urging apart the interior sides of the front and rear walls.




The rear, the front and the adjoining walls, together, define an elongated hollow that is shaped and dimensioned to accommodate a wire or spiral binding.




The adjoining wall has an exterior side and contains a first elongated recess on the exterior side. The first recess is configured to carry a writing implement when the apparatus is oriented to hold the single sheet or multiple sheets in a first orientation (e.g., a vertical orientation). The front wall has an exterior side and contains a second elongated recess on the exterior side. The second recess is configured to carry a writing implement when the apparatus is oriented to hold the single sheet or multiple sheets in a second orientation (e.g., a horizontal orientation). The curved portion of the interior side of the front wall is produced by a curve in the front wall, and this curve substantially defines the second recess.











BRIEF DESCRIPTION OF THE DRAWING




Further objects of the present invention will become apparent from the following description of the preferred embodiment with reference to the accompanying drawing, in which:





FIG. 1

is a rear perspective view of an apparatus for holding sheet-like material, constructed in accordance with the present invention, wherein the holding apparatus is shown with a magnetic strip for mounting the apparatus to a magnetically responsive vertical surface;





FIG. 2

is a rear perspective view of a holding apparatus of the present invention, wherein the apparatus is shown with slotted holes for mounting the apparatus to a vertical surface;





FIG. 3

is a side elevation view of a holding apparatus of the present invention, wherein the apparatus is shown holding a wire bound product, such as a wire bound wall calendar, in a vertical orientation;





FIG. 4

is an enlarged view of the circled area marked “FIG.


4


” in

FIG. 3

, showing the holding apparatus in greater detail;





FIG. 5

is a side elevation view of a holding apparatus of the present invention, wherein the apparatus is shown holding a single sheet of material, such as a dry-erase board, in a horizontal orientation;





FIG. 6

is a top plan view of the holding apparatus of

FIG. 5

;





FIG. 7

is a side elevation view of a holding apparatus of the present invention, wherein the apparatus is shown holding a single sheet of laminated paper in a vertical orientation;





FIG. 8

is a side elevation view of a holding apparatus of the present invention holding an easel together and serving as a pen tray;





FIG. 9

is a top plan view of the holding apparatus and easel of

FIG. 8

; and





FIG. 10

is a front elevation view of the holding apparatus and easel of FIG.


8


.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




Referring now to

FIG. 1

, there is shown a holding apparatus


10


constructed in accordance with the preferred embodiment of the present invention. Apparatus


10


comprises an elongated frame


12


constructed as a single extruded piece of homogeneous plastic, such as polystyrene. Frame


12


has a longitudinal axis A—A (FIG.


1


). Frame


12


has a rear wall


14


, a front wall


16


, and an adjoining wall


18


. Rear wall


14


has a free end


20


, a joined end


22


, and an interior side


24


. Front wall


16


has a free end


26


, a joined end


28


, and an interior side


30


.




As shown in

FIG. 1

, rear and front walls


14


,


16


are disposed in opposing spaced relation such that interior side


30


of front wall


16


generally faces interior side


24


of rear wall


14


. Adjoining wall


18


is integrally connected to joined ends


22


and


28


, and connects rear and front walls


14


,


16


together.




A pair of spaced-apart elongated teeth or ribs


32


are integrally formed on interior side


24


of rear wall


14


, at free end


20


. Teeth


32


run the entire length of interior side


24


(not shown), and are disposed parallel to one another. Again, the embodiment described herein is the preferred embodiment. The invention is not limited to the structure (i.e., continuous elongated ribs) and arrangement (i.e., parallel) of the teeth shown in FIG.


1


. For example, each continuous rib


32


may be replace with a train or series of discrete projections, or by a single discrete tooth or projection. Any equivalent pair of projections are within the scope of the present invention. Teeth


32


aid in securing a single sheet of sheet-like material as will be described in greater detail hereinbelow.




Interior side


30


of the front wall has a curved portion


31


at free end


26


. Curved portion


31


projects toward the interior side of rear wall


14


, and is in tight mating contact with teeth


32


. In the preferred embodiment, curved portion


31


has a smooth surface


33


that extends into the space between teeth


32


, but does not touch interior surface


24


. A slight gap is maintained to allow for sheet material to be slid in and held. Teeth


32


are in tight contact with circumferentially displaced points along smooth surface


33


of curved portion


31


, as best illustrated in

FIGS. 1 and 2

.




With further reference to

FIG. 1

, free ends


20


and


26


define an elongated entry


34


through which a single sheet or multiple sheets of material (to be held by apparatus


10


) are to be inserted. As shown in

FIGS. 1 and 2

, entry


34


is normally closed by the tight mating contact of curved portion


31


and teeth


32


. Entry


34


can be opened by urging apart front and rear walls


16


and


14


. Rear, front and adjoining walls


14


,


16


, and


18


, together, define an elongated hollow


36


. Hollow


36


is shaped and dimensioned to accommodate a wire or spiral binding, as best illustrated in FIG.


4


.




As shown in

FIG. 1

, adjoining wall


18


contains an elongated recessed area or recess


38


on the wall's exterior side. Recess


38


is configured to carry a writing implement when apparatus


10


is oriented or mounted to hold a sheet or sheets in a vertical orientation (e.g., see FIGS.


3


and


4


). Front wall


16


contains an elongated recessed area or recess


40


on the front wall's exterior side. Recess


40


is configured to carry a writing implement when apparatus


10


is oriented or mounted to hold a sheet or sheets in a horizontal orientation (e.g., see FIGS.


5


and


6


). Curved portion


31


of interior side


30


is produced by a curve in front wall


16


. This curve defines recess


40


in front wall


16


.




Apparatus


10


may be mounted to a surface by any conventional means, including, but not limited to magnetic strip, slotted holes, double-sided foam tape, suction cups, hooks, or tabs containing screw or nail holes.

FIG. 1

shows, as an example, a magnetic strip


42


glued onto the exterior surface of rear wall


14


.

FIG. 2

shows a holding apparatus


10


′, which is identical to apparatus


10


except for the mounting means. The parts in

FIG. 2

that are identical to those in

FIG. 1

are numbered identically except they are “primed.” As shown in

FIG. 2

, apparatus


10


′ contains slotted (or key) holes


42


′ for mounting apparatus


10


′ to a vertical surface.





FIGS. 3 and 4

illustrate an example of how apparatus


10


may be used. Apparatus


10


is shown holding (or hanging) a wire bound, multiple-sheet calendar


44


in a vertical orientation. Apparatus


10


may be mounted to a vertical surface in any known manner, as described above. Calendar


44


is slipped into apparatus


10


from the side. Hollow


36


is configured to accommodate a wire binding


45


of calendar


44


. As shown in

FIG. 4

, the configuration of hollow


36


allows calendar


44


to hang by wire binding


45


. Entry


34


is forced open by the multiple sheets


46


of calendar


44


. Curved portion


31


and teeth


32


, together, apply a compressive force on sheets


46


. Calendar


44


is also held (or hung) as a result of this compressive force. Even if the multiple-sheet product did not have a wire binding (e.g., a simple pad of paper), the compressive force of curved portion


31


and teeth


32


would hold or hang the multiple sheets. Recess


38


functions as a tray for holding a writing implement when apparatus


10


is positioned in a vertical orientation. In

FIGS. 3 and 4

, a pen


48


is shown resting in recess


38


. Of course, most types of writing implements may be held in recess


38


.





FIGS. 5 and 6

illustrate another example of how apparatus


10


may be used. Apparatus


10


is shown secured to a dry-erase board


50


in a horizontal orientation. Apparatus


10


is able to flex open to hold sheet-like material thicker than paper, such as board


50


. Recess


40


functions as a tray for holding a writing implement when apparatus


10


is positioned in a horizontal orientation. In

FIGS. 5 and 6

, pen


48


is shown resting in recess


40


. As shown in

FIG. 6

, apparatus


10


may also hold other articles such as a card


52


.





FIG. 7

illustrates a further example of how apparatus


10


may be used. Apparatus


10


is shown mounted to a metal vertical surface


54


in a vertical orientation. Magnetic strip


42


is the means for mounting apparatus


10


to surface


54


. A pencil


56


is supported in recess


38


. A single sheet of laminated paper


58


is held between teeth


32


and curved portion


31


.





FIGS. 8-10

illustrates yet a further example of how apparatus


10


may be used. Apparatus


10


is used to hold a calendar or display easel


60


together and to serve as a pen or marker tray for the easel. A base


62


of easel


60


includes an extended portion


63


. A front face


64


of easel


60


includes an extended portion


65


which is hinged or creased at point


66


. Apparatus


10


is positioned in a horizontal orientation so that recess


40


serves as a tray for holding a marker


68


. Extended portions


63


,


65


are clamped together by apparatus


10


, as best shown in

FIG. 8. A

wire bound calendar


70


may be mounted on easel


60


by sliding a back


71


of the calendar into a slot


72


contained at the top of easel


60


(FIGS.


8


and


9


). In an alternative easel example, apparatus


10


may simply clamp onto an extended portion of the easel's base or onto a stop extending from the base.




The preferred method of constructing apparatus


10


is to extrude plastic material, such as polystyrene, through a die, producing a single plastic extruded part. As the plastic is extruded through the die, it is stretched, manipulated and guided into the desired profile. In order to achieve the tight mating contact between curved portion


31


with teeth


32


, tension must be instilled in the plastic extruded part. This is accomplished by making sure that, as the plastic cools, its stays tight together at the points where curved portion


31


and teeth


32


are to make contact. By following this method of construction, a tight mating contact is achieved between curved portion


31


and teeth


32


. By following this method of construction, apparatus


10


is able to hold a single sheet of laminate paper, and still function to hold a multiple-sheet product or a thick board product.




While the preferred embodiments of the invention have been particularly described in the specification and illustrated in the drawings, it should be understood that the invention is not so limited. Many modifications, equivalents and adaptations of the invention will become apparent to those skilled in the art without departing from the spirit and scope of the invention, as defined in the appended claims.



Claims
  • 1. An apparatus for holding a single sheet or multiple sheets, comprising an elongated frame, said frame including:a rear wall having a free end, a joined end, and an interior side; a front wall having a free end, a joined end, and an interior side, the front and the rear walls be disposed in substantially opposing spaced relation such that the interior side of the front wall generally faces the interior side of the rear wall, the front wall having an exterior side and containing a first elongated recess on the exterior side, the first recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a first orientation; and an adjoining wall connecting the joined ends of the rear and the front walls, the adjoining wall having an exterior side and containing a second elongated recess on the exterior side, the second recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a second orientation, the interior side of the rear wall including a pair of spaced-apart projections at the free end of the rear wall, the interior side of the front wall having a curved portion at the free end of the front wall, the curved portion projecting toward the interior side of the rear wall and being in tight mating contact with the pair of projections, the free ends defining an elongated entry through which the single sheet is or multiple sheets are to be inserted, the entry being normally closed by the tight mating contact of the curved portion and the pair of projections and being openable by urging apart the interior sides of the front and rear walls, the rear, the front and the adjoining walls together defining an elongated hollow that is shaped and dimensioned to accommodate a wire or spiral binding.
  • 2. An apparatus for holding a single sheet or multiple sheets, comprising an elongated frame, said frame including:a rear wall having a free end, a joined end, and an interior side; a front wall having a free end, a joined end, and an interior side, the front and the rear walls be disposed in substantially opposing spaced relation such that the interior side of the front wall generally faces the interior side of the rear wall, the front wall having an exterior side and containing a first elongated recess on the exterior side, the first recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a first orientation; and an adjoining wall connecting the joined ends of the rear and the front walls, the adjoining wall having an exterior side and containing a second elongated recess on the exterior side, the second recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a second orientation, the interior side of the rear wall including a pair of spaced-apart projections at the free end of the rear wall, the interior side of the front wall having a curved portion at the free end of the front wall, the curved portion projecting toward the interior side of the rear wall and being in tight mating contact with the pair of projections, the curved portion being produced by a curve in the front wall, and the curve in the front wall substantially defining the first elongated recess, the free ends defining an elongated entry through which the single sheet is or multiple sheets are to be inserted, the entry being normally closed by the tight mating contact of the curved portion and the pair of projections and being openable by urging apart the interior sides of the front and rear walls, the rear, the front and the adjoining walls together defining an elongated hollow that is shaped and dimensioned to accommodate a wire or spiral binding.
  • 3. An apparatus for holding a single sheet or multiple sheets, comprising an elongated frame, said frame including:a rear wall having a free end, a joined end, and an interior side; a front wall having a free end, a joined end, and an interior side, the front and the rear walls be disposed in substantially opposing spaced relation such that the interior side of the front wall generally faces, the interior side of the rear will, the front wall having an exterior side and containing a first elongated recess on the exterior side, the first recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a first orientation, and an adjoining wall connecting the joined ends of the rear and the front walls, the adjoining wall having an exterior side and containing a second elongated recess on the exterior side, the second recess being configured to carry a writing implement when said apparatus is oriented to hold the single sheet or the multiple sheets in a second orientation, the interior side of the rear wall including a pair of spaced-apart projections at the free end of the rear wall, the interior side of the front wall having a curved portion at the free end of the front wall, the curved portion projecting toward the interior side of the rear wall and being in tight mating contact with the pair of projections, the curved portion having a smooth surface and projecting toward the interior side of the rear wall and being in tight mating contact with the pair of projections, the free ends defining an elongated entry through which the single sheet is or multiple sheets are to be inserted, the entry being normally closed by the tight mating contact of the curved portion and the pair of projections and being openable by urging apart the interior sides of the front and rear walls, the rear, the front and the adjoining walls together defining an elongated hollow that is shaped and dimensioned to accommodate a wire or spiral binding.
  • 4. The apparatus as recited in claim 3, wherein at least one of the pair of spaced-apart projections is an elongated rib.
  • 5. The apparatus as recited in claim 3, wherein each of the pair of spaced-apart projections is an elongated rib.
  • 6. The apparatus as recited in claim 3, further comprising mounting means, affixed to said frame, for mounting said frame to a surface.
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