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US20050188899A1 - Work surface device - Google Patents

Work surface device Download PDF

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Publication number
US20050188899A1
US20050188899A1 US10/788,528 US78852804A US2005188899A1 US 20050188899 A1 US20050188899 A1 US 20050188899A1 US 78852804 A US78852804 A US 78852804A US 2005188899 A1 US2005188899 A1 US 2005188899A1
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United States
Prior art keywords
work surface
recited
workpiece
surface device
support
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Abandoned
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US10/788,528
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Frederick Yovich
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Individual
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Individual
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Publication date
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Priority to US10/788,528 priority Critical patent/US20050188899A1/en
Publication of US20050188899A1 publication Critical patent/US20050188899A1/en
Abandoned legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B23/00Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else
    • A47B23/002Bed-tables; Trays; Reading-racks; Book-rests, i.e. items used in combination with something else supported only by a person

Definitions

  • the present invention relates generally to a device that provides for a work surface and more particularly to a multipurpose, portable, adjustable, work surface for use on a lap, tabletop, or other support surface.
  • a work surface is not handily available.
  • the work surface at hand is lacking in one or more required specific attributes.
  • a person wishing to write a letter while seated comfortably in an easy chair would require not only a hard work surface on which to position the writing paper, but, additionally, one that could be securely positioned at an angle comfortable for the user.
  • a bed-bound reader in a semi-inclined position would greatly benefit not only from a surface to support the book being read, but from a work surface that would position the book at eyesight-level. Holding a book up to eye level, if the book is heavy, soon becomes an unpleasant chore instead of the pleasing activity it should be, especially if the material being read is an awkwardly oversized book or magazine.
  • Positioning a stiff board on one's lap is one way to provide a hard supporting work surface on which to write or to hold reading material. Having such a board on one's lap, however, soon becomes uncomfortable as a rectilinear board does not conform to the shape constraints of most laps. Moreover, it would be difficult to maintain a board one's lap at an angle comfortable for reading or writing.
  • the board could be held at an angle, by placing the broad on the user's crossed knees and situating the board so that it was tilted toward the user of the board, but sitting with one's legs crossed for any length of time can be uncomfortable and, in fact, is discouraged for health reasons.
  • the work surface provided by the board could be maintained in an angled position, such as by being supported on a pillow, there would be no means by which the workpiece, such as a piece of writing paper or a book, could be maintained in a particular position, such as one that would accommodate the specific needs of a right-handed or a left-handed person.
  • work surfaces are essential for persons wishing to take notes whether by hand or electronically, such as when attending a lecture.
  • the now nearly ubiquitous use of lap-top computers has created a need for lap-top computer work surfaces.
  • Such a work surface would ideally support the lap-top computer so that the computer's screen is maintained at an angle that reduces eye strain, which is often encountered while working with a lap-top.
  • the surface supporting the lap-top should be able to be positioned to reduce wrist strain that often accompanies repetitive motion activities, such as when a lengthy piece of text must be keyed into the computer.
  • the laptop work surface should be portable and also should be comfortable when positioned on a person's lap.
  • Work surface devices that provide comfortably positioned surfaces are also desired when working on a newspaper offered crossword puzzle, to hold and position printed instructions for easy viewing while one's hands are occupied, such as while cooking, for instance.
  • Well designed work surfaces should also be able to make it easier and more pleasant to work on homework assignments, to embroider, draw, or paint, for instance.
  • the present invention discloses a novel, portable, multi-functional work surface device that can be used as a lap-desk or can be placed on any type of support surface.
  • the disclosed work surface is designed to be useful in a variety of applications, such as when a person is sitting on a couch, an easy chair, a bed, in a car, an airplane, a train, a bus, on the floor, at a lecture, or outdoors. Additionally, the work surface is useful when placed upon another, essentially horizontal surface, to provide a work surface that is at some convenient height from and at some convenient angle to a horizontal surface.
  • the invention is an adjustable reading and writing workpiece support system that permits a user to optimize a writing or reading support surface orientation to reduce muscle strain and tension by allowing the user to maintain a relaxed and balanced posture orientation.
  • the work surface of the work surface device can be easily and securely maintained at plurality of comfortable angles and heights, or alternatively, may be positioned to provide an essentially flat work surface for use as a meal tray, for example.
  • the disclosed invention provides means to securely position a workpiece, such as a writing pad, paper, book, or the like at a plurality of desired angles on the work surface, which, as described above, is also positionable at a plurality of desired angles. Therefore, both a workpiece and the work surface can be simultaneously maintained in a desired, stable position during a reading, writing, or during the performance of some other function.
  • a workpiece such as a writing pad, paper, book, or the like
  • the portable, lightweight, adjustable work surface device of the present invention provides both a support surface and a workspace for those who use a laptop computer, regardless of where the surface and space is needed.
  • the work surface member of the device is large enough to hold both the keyboard part and the display part of a laptop so the user can move farther away from the monitor, helping to prevent eye fatigue.
  • the light weight of the device combined with its ergonomic design allows the work surface device to be held comfortably on one's lap for long periods of time, if desired.
  • the ergonomic feature of the device is achieved by providing for its base member to have an arcuate indentation in the edge of the base member intended to be adjacent to the body of the user of the work surface device.
  • a work surface device for supporting a workpiece comprising:
  • the work surface device further comprises a support for supporting the workpiece in various positions on the work surface of the first member.
  • the work surface device moreover comprises one or more receptacles for holding work tools, such as pencils, pens, paint brushes, and the like, and one or more holders for holding a container, such as a cup of coffee, water for use in water color painting, glue, and the like.
  • work tools such as pencils, pens, paint brushes, and the like
  • holders for holding a container, such as a cup of coffee, water for use in water color painting, glue, and the like.
  • the holders for holding a container are detachably attached to the device and may be conveniently stored on the device when the device is not in use or when it is closed for convenient storage or portability.
  • the base of the work surface device is ergonomically shaped to conform to a shape of a person's lap allowing for the device to be held on one's lap for extended periods of time without the device becoming uncomfortable.
  • the device may be as lightweight or as heavy as desired, depending on the materials from which the device is manufactured.
  • the device may be molded from a light-weight plastic or made from wood, metal, fiberglass or other material that will suit a user's needs.
  • the work surface device is functionally adapted to be securely positioned at a desired height and at plurality of angles with each other by a variety of securing means.
  • FIG. 1 is a perspective backside view of a preferred embodiment of the work surface device according to the principles of the present invention.
  • FIG. 2 is a side plan view of the work surface device in an open and relatively up-right position, similar to that shown in FIG. 1 .
  • FIG. 3 is a side plan view of the work surface device, as shown in FIG. 2 , illustrating the lap-desk in a closed position.
  • FIG. 4 is a front plan view of the work surface device illustrating the workpiece support in three positions: for use by a right-handed person, a left-handed person, and for horizontal support of a book or the like.
  • FIG. 5 is a perspective top view of another preferred embodiment of the work surface device according to the principles of the present invention.
  • FIG. 6 is a side plan view of the work surface device in an open position, as shown in FIG. 5 .
  • FIG. 7 is a side plan view of the work surface device, as shown in FIG. 6 , illustrating the lap-desk in a closed position.
  • Container as used herein may refer to containers to hold tools, such as pens, pencils, or brushes, containers for holding water for use with water colors, or cups for a beverage, for example.
  • Hined as used herein means to have attached by the use of hinges or to have furnished with hinges.
  • “Work tool” as used herein includes fountain pens, ball point pens, mechanical or non-mechanical pencils, markers, paint brushes, cutting tools, or stylii that are used to make a mark in form of an impression on contact, for example.
  • the drawings are not necessarily to scale, for instance, depending on the desired use, the size of the first, second, and third planar section of the work surface device may vary from small for use by a child to large for use by an adult and still be within the teachings of the invention. Additionally, the pen and cup holders may be of various sizes and shapes depending on how they are, to be used. In certain instances, details which are not necessary for an understanding of the present invention, or which render other details difficult to perceive, may have been omitted.
  • the present invention is directed towards a light-weight, multipurpose, portable, adjustable, workpiece-positioning work surface device for use on a lap, tabletop, bed, or other support surface, whereby the work surface device provides a surface for painting, drawing, eating, or reading, for example.
  • the work surface device has many functions, such as a lap desk, a work surface for a laptop computer, a bed tray, a book holder, a music stand, and a painting easel.
  • the surface is designed to hold a book or other workpiece in a position that is convenient while one is resting comfortably in a recliner.
  • the device securely positions the recipe or instructions in a position convenient for viewing while working.
  • the work surface has means to accommodate left- and right-handed writers, persons with small and large laps, and writers who use a writing instrument such as a pen or pencil or a lap-top computer.
  • FIG. 1 a perspective back view of an exemplary preferred embodiment, shows work surface device 10 .
  • Work surface device 10 adapted for supporting a workpiece, comprises first member 12 having first surface 12 a and second surface 12 b , second member 14 , and third member 16 .
  • Member 16 is adapted to function as a base for the device.
  • First member 12 and third member 16 are shown rotably hinged by rotable friction hinges 42 a and 42 c , and hinges 42 b and 42 d , respectively, to opposing sides of second member 14 .
  • First member 12 and second member 14 may be positioned to any one of a plurality of angles with respect to each other and with respect to the third member.
  • connections between the members are functionally adapted to securely hold, for as long as desired, said first member, said second member, and said third member in any one of said plurality of angles.
  • the three members of device 10 may be rotably connected using other now known or yet to be known connecting techniques, to provide an example of such a connection, a description of a variation of a rotable connection is provided below.
  • first member 12 , second member 14 , and base member 16 are rotably, hingedly connected so as to be easily and rapidly folded together in a compact manner for convenient storage and portability.
  • Second member 14 between first member 12 and third member 16 functions as an elevator support providing the means to elevate and lower first member 12 relative to base member 16 .
  • Work surface device 10 is provided with first suspension grommet holder 40 a for holding a pen, pencil, paint brush, or the like and, if desired, device 10 may also be provided with a second suspension grommet holder 40 b also for holding a pen, pencil, paint brush, or the like.
  • the number of grommet holders may be increased as required, if for instance, a drafting artist needed to have several differently sized drafting pens readily available.
  • First holder 30 a for holding a container, such as a cup, a vessel for holding pens, pencils, brushes, or the like, is shown positioned in holding part 34 a .
  • Second holding part 34 b as illustrated in FIG. 1 , may be provided as desired for extra container holding capacity.
  • holder parts such as 30 b and 30 c
  • Holder parts, such as 30 a , 30 b , and 30 c may be provided in different sizes to accommodate differently-sized containers, and, of course, may be used to hold any desired object besides a container.
  • base member 16 is ergonomically shaped to conform to the shape of a person's lap. Curved indentation 44 provides for a comfortable and sturdy fit when indentation 44 is placed adjacent to the user of work surface device 10 when the device is used as a lap desk.
  • FIG. 2 a side plan view, shows workpiece support member 12 securely and firmly positioned in a close-to vertical orientation relative to base member 16 , which is shown in a horizontal orientation as it is likely to sit on a horizontally oriented support surface.
  • Member 12 is held securely in the nearly vertical position by the tightened wing nuts that are positioned in friction hinges 42 a and 42 c .
  • the height of workpiece support member 12 relative to base member 16 is determined by the angle at which elevator support member 14 is set. Elevator support member 14 is held securely in its angled position by the tightened wing nuts that are positioned in friction hinges 42 b and 42 d.
  • FIG. 2 also illustrates how a work instrument, such as the pencil shown in the figure, is supported ready for use by suspension grommet holder 40 a.
  • FIG. 3 a side plan view of the device, shows how the three members of work surface device 10 fold relative to one another to provide for the device to be compactly closed for storage or transport.
  • FIG. 4 a front plan view of the device, illustrates workpiece support 18 in three of many possible positions. Shown is support 18 positioned to hold a workpiece in a horizontal alignment, angled for the convenience of a right-handed person, and angled for the convenience of a left-handed person. Support 18 is securely positioned as desired by the use of alignment pins that are affixed to support 18 . Support 18 is securely positioned by placing the alignment pins, such as alignment pin 18 d , into desired positioning holes 28 .
  • FIG. 5 a perspective backside view of another exemplary preferred embodiment, illustrates work surface device 50 adapted for supporting a workpiece.
  • Work surface device 50 is the same as work surface device 10 in all respects except that the means for securing members 12 , 14 , and 16 in various angles relative to each other comprises a system consisting of wire supports and support grooves in which the wires are placed.
  • Wire support 22 and support grooves 60 a and 60 b are functionally adapted to securely support member 12 when it is positioned at one of a plurality of possible angles relative to members 14 and 16 .
  • Wire fulcrum support 20 and support grooves 60 c and 60 d are functionally adapted for to provide support directly to member 14 and indirectly to member 12 .
  • Work surface device 50 like work surface device 10 comprises first member 12 having first surface 12 a and second surface 12 b , second member 14 having second surface 14 b , and third member 16 having surface 16 b .
  • Member 16 functions as a base for the device.
  • First member 12 and third member 16 are shown rotably hinged by rotable hinges 62 a and 62 b , and hinges 62 c and 62 d , respectively, to opposing sides of second member 14 .
  • first member 12 may be securely positioned in any one of a plurality of angles with respect to second member 14 by positioning differential wire support 22 in any one of support grooves 60 a and 60 b affixed to surface 14 b of second member 14 .
  • Second member 14 may be securely positioned in any one of a plurality of angles with respect to third member 16 by positioning differential wire fulcrum support 20 in one of the plurality of support grooves 60 c and 60 d affixed to surface 16 b of third member 16 .
  • Second member 14 between first member 12 and third member 16 functions as an elevator support providing the means to elevate and lower first member 12 relative to base member 16 .
  • Work surface device 10 is provided with first suspension grommet holder 40 a for holding a pen, pencil, paint brush, or the like and second suspension grommet holder 40 b also for holding a pen, pencil, paint brush, or the like. And, as mentioned above, the number of grommets may be increased to meet the needs of the user.
  • First holder 30 a for holding a container, such as a cup, or the like, is shown positioned in holding part 34 a .
  • Second holding part 34 b as illustrated in FIG. 1 , may be provided as desired for extra container holding capacity.
  • holder parts such as 30 b and 30 c
  • Container holding parts, such as 30 a , 30 b , and 30 c may be provided in different sizes to accommodate differently-sized containers, and, of course, may be used to hold any desired object besides a container.
  • Base member 16 is ergonomically shaped to conform to the shape of a person's lap. Curved indentation 44 provides for a comfortable and sturdy fit when indentation 44 is placed adjacent to the user of work surface device 10 when it is used as a lap-desk or as a work surface.
  • FIG. 6 a side plan view, shows workpiece support member 12 securely and firmly positioned in a nearly vertical orientation relative to base member 16 , which is shown in a horizontal orientation. Member 12 is held securely in the nearly vertical position by positioning the support wires in the support grooves, as discussed above, while its height above member 16 is determined by the angle at which elevator support member 14 is set.
  • FIG. 6 also illustrates how a work instrument, such as the pencil shown in the figure, is supported ready for use by suspension grommet holder 40 a.
  • FIG. 7 a side plan view of the work surface device of the present invention, shows how the three members of work surface device 10 fold relative to one another to provide for the device to be compactly closed for storage or transport.
  • Work surface device 10 adapted for supporting a workpiece, is functionally adapted to be used in a variety of ways. It is contemplated, though, that first surface 12 a of first member 12 most likely will be used to support a workpiece, such as a book or a piece of paper to be used for writing, drawing, painting, or the like, at a height and at an angle that is comfortable, convenient, and at times required by the desired use. It will be understood that the device serves to support any kind of suitable workpiece where the position of the workpiece is important. As was discussed, the workpiece supporting surface 12 a may be raised and lowered relative to the base member of the device and may simultaneously be positioned in a plurality of angled positions to meet the requirements of the user.
  • a workpiece such as a book or a piece of paper to be used for writing, drawing, painting, or the like
  • Third member 16 is used as a sturdy support for the device whether the device is supported by a hard support surface such as a table or work bench, if the device is placed on one's lap, or if the device is used on a bed or chair as a work or eating tray for those who are confined to a bed or chair, for example.
  • first member 12 may be securely held in any one of a plurality of angled positions by first loosening the wing nuts functionally related to rotable, friction, hinges 42 a and 42 c , positioning first member 12 as desired, and then tightening the wing nuts. Once the nuts are hand-tightened the friction hinges are designed to hold the members in any set position.
  • second member 14 located between first member 12 and third member 16 is set to the angled position that will achieve the desired height by loosening the winged nuts functionally related to the friction hinged bolts 42 b and 42 d , angularly positioning member 14 with respect to member 16 to raise or lower member 12 to the desired work height, and then tightening the winged nuts to hold member 14 securely in the desired position.
  • the work surface device is used in conjunction with an activity that requires work tools to be readily available within reach, where the work tools are of the like of a pen, pencil, paint brush, knives, chisels, or such, the tools may be handily and temporarily stored in the grommet holders provided for such use, such as suspension grommet holder 40 a.
  • a user simply lifts workpiece support 18 so that its alignment pins 18 d are lifted out of alignment positioning holes 28 and reposition the pins in the alignment holes that will provide for the workpiece to be held in the desired position.
  • desired positions as illustrated for example, in FIG. 4 , might be achieved when support 18 a is in a horizontal position, having support 18 a angled for the convenience of a right-handed person, or having support 18 b angled for the convenience of a left-handed person.
  • the alignment pins maintain support 18 securely in the desired position until they are again removed from positioning holes 28 .
  • the work surface device may be used as a lap-desk to support a laptop or alternatively, the work surface device may be supported on a table, such as a kitchen table to be used as a laptop desk. Regardless of where the work surface device is positioned for use, its use enables a laptop user to adjust the position of the screen of the laptop for maximum viewing effectiveness and it also enables a user to position the keyboard in an ergonomically correct position for keying. Although a laptop is often used for recreational purposes, it is also widely used for job or school related tasks. These tasks normally require diligence and industry. If the laptop computer is not positioned in a convenient and comfortable position, a user will soon tire and be easily distracted. Using the work surface device of this invention may contribute significantly to the quality of the work product produced.
  • first member 12 , second member 14 , and base member 16 are rotably, hingedly connected so as to be easily and rapidly folded together.
  • container holder parts such as 30 b and 30 c , are removed from holder supports 34 a and 34 b and placed for storage in storing holder part 32 .
  • the work surface device as described herein, is easy to use. It is also affordable to make and to purchase.
  • One contemplated means of manufacture is that the device members be mass produced by any molding process, such as a plastic injection molding technique, although the work surface device could just as well be made of wood, metal, or fiberglass and could be offered as a kit or as a finished product.
  • the invention comprises a lightweight, portable, multiuse and multifunctional work surface device adaptable for a variety of uses in a variety of positions.

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  • Supports Or Holders For Household Use (AREA)

Abstract

A light-weight, portable, work surface device that functions as a lap desk, a work surface for a laptop computer, a bed tray, a book holder, a music stand, and a painting easel, for example is described. A first panel supports a workpiece, a second panel functions as an elevator support between the first and third panel, while the third panel serves a base. The rotably hinged three panels may be securely positioned at various work angles relative to each other and folded against each other. The device also provides a support for maintaining the workpiece at convenient positions on the first panel, and at least one receptacle adapted for holding a work tool, such as a pen, and at least one holder for holding a container, such as a cup. The base of the device is shaped to conform to a shape of a person's lap.

Description

    CROSS-REFERENCE TO RELATED APPLICATIONS
  • Not Applicable
  • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not Applicable
  • REFERENCE TO SEQUENCE LISTING, A TABLE OR A COMPUTER PROGRAM LISTING COMPACT DISK APPENDIX
  • Not Applicable
  • BACKGROUND
  • The present invention relates generally to a device that provides for a work surface and more particularly to a multipurpose, portable, adjustable, work surface for use on a lap, tabletop, or other support surface.
  • The background information discussed below is presented to better illustrate the novelty and usefulness of the present invention. This background information is not admitted prior art.
  • It is frequently the case that when needed, a work surface is not handily available. At other times, although available when needed, the work surface at hand is lacking in one or more required specific attributes. For example, a person wishing to write a letter while seated comfortably in an easy chair would require not only a hard work surface on which to position the writing paper, but, additionally, one that could be securely positioned at an angle comfortable for the user. Likewise, a bed-bound reader in a semi-inclined position would greatly benefit not only from a surface to support the book being read, but from a work surface that would position the book at eyesight-level. Holding a book up to eye level, if the book is heavy, soon becomes an unpleasant chore instead of the pleasing activity it should be, especially if the material being read is an awkwardly oversized book or magazine.
  • Positioning a stiff board on one's lap is one way to provide a hard supporting work surface on which to write or to hold reading material. Having such a board on one's lap, however, soon becomes uncomfortable as a rectilinear board does not conform to the shape constraints of most laps. Moreover, it would be difficult to maintain a board one's lap at an angle comfortable for reading or writing. The board could be held at an angle, by placing the broad on the user's crossed knees and situating the board so that it was tilted toward the user of the board, but sitting with one's legs crossed for any length of time can be uncomfortable and, in fact, is discouraged for health reasons.
  • Furthermore, even if the work surface provided by the board could be maintained in an angled position, such as by being supported on a pillow, there would be no means by which the workpiece, such as a piece of writing paper or a book, could be maintained in a particular position, such as one that would accommodate the specific needs of a right-handed or a left-handed person.
  • In addition to being desired for making reading and writing easier and more comfortable, work surfaces are essential for persons wishing to take notes whether by hand or electronically, such as when attending a lecture. The now nearly ubiquitous use of lap-top computers has created a need for lap-top computer work surfaces. Such a work surface would ideally support the lap-top computer so that the computer's screen is maintained at an angle that reduces eye strain, which is often encountered while working with a lap-top. Moreover, the surface supporting the lap-top should be able to be positioned to reduce wrist strain that often accompanies repetitive motion activities, such as when a lengthy piece of text must be keyed into the computer. Furthermore, the laptop work surface should be portable and also should be comfortable when positioned on a person's lap.
  • Work surface devices that provide comfortably positioned surfaces are also desired when working on a newspaper offered crossword puzzle, to hold and position printed instructions for easy viewing while one's hands are occupied, such as while cooking, for instance. Well designed work surfaces should also be able to make it easier and more pleasant to work on homework assignments, to embroider, draw, or paint, for instance. Moreover, it is frequently necessary, or desirable, to have a portable, positionable tray or activity surface on hand, particularly when traveling or when confined in bed.
  • Some attempts to provide a work surface that meets at least some of these needs have been made, however these devices suffer from one or more deficiencies, such as excessive bulk, being too heavy to carry conveniently, costly to manufacture, provide only one angle of inclination at which a workpiece can be positioned and/or lack directional support for a workpiece, lack compact storage capability and are not readily portable.
  • Therefore, there is still exists a need for a lightweight, inexpensive portable work surface device that offers working configurations at various inclinations, which will hold a workpiece in a convenient position for both left- and right-handed persons, can be compactly stored, and offers ease of portability.
  • SUMMARY
  • Accordingly, the present invention discloses a novel, portable, multi-functional work surface device that can be used as a lap-desk or can be placed on any type of support surface. The disclosed work surface is designed to be useful in a variety of applications, such as when a person is sitting on a couch, an easy chair, a bed, in a car, an airplane, a train, a bus, on the floor, at a lecture, or outdoors. Additionally, the work surface is useful when placed upon another, essentially horizontal surface, to provide a work surface that is at some convenient height from and at some convenient angle to a horizontal surface.
  • In particular, the invention is an adjustable reading and writing workpiece support system that permits a user to optimize a writing or reading support surface orientation to reduce muscle strain and tension by allowing the user to maintain a relaxed and balanced posture orientation. Accordingly, the work surface of the work surface device can be easily and securely maintained at plurality of comfortable angles and heights, or alternatively, may be positioned to provide an essentially flat work surface for use as a meal tray, for example.
  • Furthermore the disclosed invention provides means to securely position a workpiece, such as a writing pad, paper, book, or the like at a plurality of desired angles on the work surface, which, as described above, is also positionable at a plurality of desired angles. Therefore, both a workpiece and the work surface can be simultaneously maintained in a desired, stable position during a reading, writing, or during the performance of some other function.
  • Additionally, the portable, lightweight, adjustable work surface device of the present invention, provides both a support surface and a workspace for those who use a laptop computer, regardless of where the surface and space is needed. The work surface member of the device is large enough to hold both the keyboard part and the display part of a laptop so the user can move farther away from the monitor, helping to prevent eye fatigue.
  • The light weight of the device combined with its ergonomic design allows the work surface device to be held comfortably on one's lap for long periods of time, if desired. The ergonomic feature of the device is achieved by providing for its base member to have an arcuate indentation in the edge of the base member intended to be adjacent to the body of the user of the work surface device.
  • Accordingly, the present invention provides for a work surface device for supporting a workpiece, comprising:
      • a. a first member having a first surface and a second surface,
      • b. a second member having a first side and a second side, which sides may be construed as a first edge and a second edge, or as a first part and a second part, for example, and
      • c. a base member, whereby
      • d. the first member is rotably hinged to the first side of the second member, and
      • e. the third member is rotably hinged to the second side of the second member, and furthermore, where the
      • f. the first member, the second member, and the third member are hingedly adapted to be folded together, moreover
      • g. the first member and the second member are positionable at a plurality of angles with each other and with the third member, and additionally
      • h. the rotable hinge joints are adapted to securely position the first member, the second member, and the third member in any one of the plurality of angles, and
      • i. the third member is adapted to support the device on a supporting surface.
  • The work surface device further comprises a support for supporting the workpiece in various positions on the work surface of the first member.
  • The work surface device moreover comprises one or more receptacles for holding work tools, such as pencils, pens, paint brushes, and the like, and one or more holders for holding a container, such as a cup of coffee, water for use in water color painting, glue, and the like.
  • The holders for holding a container are detachably attached to the device and may be conveniently stored on the device when the device is not in use or when it is closed for convenient storage or portability.
  • The base of the work surface device is ergonomically shaped to conform to a shape of a person's lap allowing for the device to be held on one's lap for extended periods of time without the device becoming uncomfortable.
  • The device may be as lightweight or as heavy as desired, depending on the materials from which the device is manufactured. The device may be molded from a light-weight plastic or made from wood, metal, fiberglass or other material that will suit a user's needs.
  • The work surface device is functionally adapted to be securely positioned at a desired height and at plurality of angles with each other by a variety of securing means.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • In order that these and other objects, features, and advantages of the present invention may be more fully comprehended and appreciated, the invention will now be described, by way of example, with reference to specific embodiments thereof which are illustrated in appended drawings wherein like reference characters indicate like parts throughout the several figures. It should be understood that these drawings depict only two preferred embodiments of the present invention and are not therefore to be considered limiting in scope. The invention will now be described and explained with added specificity and detail through the use of the accompanying drawings, in which:
  • FIG. 1 is a perspective backside view of a preferred embodiment of the work surface device according to the principles of the present invention.
  • FIG. 2 is a side plan view of the work surface device in an open and relatively up-right position, similar to that shown in FIG. 1.
  • FIG. 3 is a side plan view of the work surface device, as shown in FIG. 2, illustrating the lap-desk in a closed position.
  • FIG. 4 is a front plan view of the work surface device illustrating the workpiece support in three positions: for use by a right-handed person, a left-handed person, and for horizontal support of a book or the like.
  • FIG. 5 is a perspective top view of another preferred embodiment of the work surface device according to the principles of the present invention.
  • FIG. 6 is a side plan view of the work surface device in an open position, as shown in FIG. 5.
  • FIG. 7 is a side plan view of the work surface device, as shown in FIG. 6, illustrating the lap-desk in a closed position.
  • DEFINITIONS
  • “Container” as used herein may refer to containers to hold tools, such as pens, pencils, or brushes, containers for holding water for use with water colors, or cups for a beverage, for example.
  • “Hinged” as used herein means to have attached by the use of hinges or to have furnished with hinges.
  • “Work tool” as used herein includes fountain pens, ball point pens, mechanical or non-mechanical pencils, markers, paint brushes, cutting tools, or stylii that are used to make a mark in form of an impression on contact, for example.
  • A list of aspects of the embodiment of the invention described to which the following reference numbers refer.
    • 10 A preferred embodiment of the work surface device of the present invention.
    • 12 First member of 10 serving as a working surface.
    • 12 a First side of first member 12.
    • 12 b Second side of first member 12.
    • 14 Second member of 10 serving as an elevator support.
    • 14 b A surface of second member 14.
    • 16 Third member of 10 serving as a base for the work surface device.
    • 16 b A surface of third member 16.
    • 18 A support means for a workpiece, such as a book, computer, crossword puzzle,
    • painting, and the like.
    • 18 a Support means 18 positioned for use by a right-handed person.
    • 18 b Support means 18 positioned for use by a left-handed person.
    • 18 d Alignment pins that are inserted into positioning holes 28 for securing support means 18.
    • 20 Wire fulcrums for angular positioning of 14.
    • 22 Differential wire support for angular positioning of 12.
    • 28 Position holes for positioning support 18.
    • 30 a First holder means for holding a container, such as a cup or the like.
    • 30 b Second holder means for holding a cup or the like.
    • 30 c Third holder means for holding a cup or the like.
    • 32 Storage space for holders 30 a, 30 b, or 30 c.
    • 34 a First support for holders 30 a, 30 b, or 30 c.
    • 34 b Second support for holders 30 a, 30 b, or 30 c.
    • 40 a First suspension grommet holder for holding a pen, pencil, paint brush, or the like.
    • 40 b Second suspension grommet holder for holding a pen, pencil, paint brush, or the like.
    • 42 a First rotable friction hinge.
    • 42 b Second rotable friction hinge.
    • 42 c Third rotable friction hinge.
    • 42 d Fourth rotable friction hinge.
    • 44 Ergonomically shaped curved indentation in base member 16 to provide a comfortable and sturdy fit when indentation is placed adjacent to the user of the work surface device.
    • 50 Another preferred embodiment of the work surface device as described herein.
    • 60 a Support grooves for positioning differential wire support 22.
    • 60 b Support grooves for positioning differential wire support 22.
    • 60 c Support grooves for positioning differential wire fulcrum 20.
    • 60 d Support grooves for positioning differential wire fulcrum 20.
    • 62 a First rotable hinge.
    • 62 b Second rotable hinge.
    • 62 c Third rotable hinge.
    • 62 d Fourth rotable hinge.
  • It should be understood that the drawings are not necessarily to scale, for instance, depending on the desired use, the size of the first, second, and third planar section of the work surface device may vary from small for use by a child to large for use by an adult and still be within the teachings of the invention. Additionally, the pen and cup holders may be of various sizes and shapes depending on how they are, to be used. In certain instances, details which are not necessary for an understanding of the present invention, or which render other details difficult to perceive, may have been omitted.
  • DETAILED DESCRIPTION
  • Referring now, with more particularity, to the drawings, it should be noted that the disclosed invention is disposed to embodiments in various sizes, shapes, and forms. Therefore, the embodiments described herein are provided with the understanding that the present disclosure is intended as illustrative and is not intended to limit the invention to the embodiments described herein.
  • The present invention is directed towards a light-weight, multipurpose, portable, adjustable, workpiece-positioning work surface device for use on a lap, tabletop, bed, or other support surface, whereby the work surface device provides a surface for painting, drawing, eating, or reading, for example. The work surface device has many functions, such as a lap desk, a work surface for a laptop computer, a bed tray, a book holder, a music stand, and a painting easel. Moreover, the surface is designed to hold a book or other workpiece in a position that is convenient while one is resting comfortably in a recliner. At other times, when one is busy working with one's hands, such as when preparing a recipe, potting a plant, or painting, the device securely positions the recipe or instructions in a position convenient for viewing while working. Additionally, the work surface has means to accommodate left- and right-handed writers, persons with small and large laps, and writers who use a writing instrument such as a pen or pencil or a lap-top computer.
  • Turning now to the drawings, FIG. 1, a perspective back view of an exemplary preferred embodiment, shows work surface device 10. Work surface device 10, adapted for supporting a workpiece, comprises first member 12 having first surface 12 a and second surface 12 b, second member 14, and third member 16. Member 16 is adapted to function as a base for the device. First member 12 and third member 16 are shown rotably hinged by rotable friction hinges 42 a and 42 c, and hinges 42 b and 42 d, respectively, to opposing sides of second member 14. First member 12 and second member 14 may be positioned to any one of a plurality of angles with respect to each other and with respect to the third member. Furthermore, the connections between the members are functionally adapted to securely hold, for as long as desired, said first member, said second member, and said third member in any one of said plurality of angles. It will be understood that the three members of device 10 may be rotably connected using other now known or yet to be known connecting techniques, to provide an example of such a connection, a description of a variation of a rotable connection is provided below. As illustrated, first member 12, second member 14, and base member 16 are rotably, hingedly connected so as to be easily and rapidly folded together in a compact manner for convenient storage and portability.
  • Second member 14 between first member 12 and third member 16 functions as an elevator support providing the means to elevate and lower first member 12 relative to base member 16.
  • Work surface device 10 is provided with first suspension grommet holder 40 a for holding a pen, pencil, paint brush, or the like and, if desired, device 10 may also be provided with a second suspension grommet holder 40 b also for holding a pen, pencil, paint brush, or the like. The number of grommet holders may be increased as required, if for instance, a drafting artist needed to have several differently sized drafting pens readily available.
  • First holder 30 a, for holding a container, such as a cup, a vessel for holding pens, pencils, brushes, or the like, is shown positioned in holding part 34 a. Second holding part 34 b, as illustrated in FIG. 1, may be provided as desired for extra container holding capacity. When work surface device 10 is to be folded for storage or for transport, holder parts, such as 30 b and 30 c, may be stored in storing holder part 32. Holder parts, such as 30 a, 30 b, and 30 c may be provided in different sizes to accommodate differently-sized containers, and, of course, may be used to hold any desired object besides a container.
  • One side of base member 16 is ergonomically shaped to conform to the shape of a person's lap. Curved indentation 44 provides for a comfortable and sturdy fit when indentation 44 is placed adjacent to the user of work surface device 10 when the device is used as a lap desk.
  • FIG. 2, a side plan view, shows workpiece support member 12 securely and firmly positioned in a close-to vertical orientation relative to base member 16, which is shown in a horizontal orientation as it is likely to sit on a horizontally oriented support surface. Member 12 is held securely in the nearly vertical position by the tightened wing nuts that are positioned in friction hinges 42 a and 42 c. The height of workpiece support member 12 relative to base member 16 is determined by the angle at which elevator support member 14 is set. Elevator support member 14 is held securely in its angled position by the tightened wing nuts that are positioned in friction hinges 42 b and 42 d.
  • FIG. 2 also illustrates how a work instrument, such as the pencil shown in the figure, is supported ready for use by suspension grommet holder 40 a.
  • FIG. 3, a side plan view of the device, shows how the three members of work surface device 10 fold relative to one another to provide for the device to be compactly closed for storage or transport.
  • FIG. 4, a front plan view of the device, illustrates workpiece support 18 in three of many possible positions. Shown is support 18 positioned to hold a workpiece in a horizontal alignment, angled for the convenience of a right-handed person, and angled for the convenience of a left-handed person. Support 18 is securely positioned as desired by the use of alignment pins that are affixed to support 18. Support 18 is securely positioned by placing the alignment pins, such as alignment pin 18 d, into desired positioning holes 28.
  • FIG. 5, a perspective backside view of another exemplary preferred embodiment, illustrates work surface device 50 adapted for supporting a workpiece. Work surface device 50 is the same as work surface device 10 in all respects except that the means for securing members 12, 14, and 16 in various angles relative to each other comprises a system consisting of wire supports and support grooves in which the wires are placed. Wire support 22 and support grooves 60 a and 60 b are functionally adapted to securely support member 12 when it is positioned at one of a plurality of possible angles relative to members 14 and 16. Wire fulcrum support 20 and support grooves 60 c and 60 d are functionally adapted for to provide support directly to member 14 and indirectly to member 12.
  • Work surface device 50 like work surface device 10 comprises first member 12 having first surface 12 a and second surface 12 b, second member 14 having second surface 14 b, and third member 16 having surface 16 b. Member 16 functions as a base for the device. First member 12 and third member 16 are shown rotably hinged by rotable hinges 62 a and 62 b, and hinges 62 c and 62 d, respectively, to opposing sides of second member 14. As discussed above, first member 12 may be securely positioned in any one of a plurality of angles with respect to second member 14 by positioning differential wire support 22 in any one of support grooves 60 a and 60 b affixed to surface 14 b of second member 14. Second member 14 may be securely positioned in any one of a plurality of angles with respect to third member 16 by positioning differential wire fulcrum support 20 in one of the plurality of support grooves 60 c and 60 d affixed to surface 16 b of third member 16.
  • Second member 14 between first member 12 and third member 16 functions as an elevator support providing the means to elevate and lower first member 12 relative to base member 16.
  • Work surface device 10 is provided with first suspension grommet holder 40 a for holding a pen, pencil, paint brush, or the like and second suspension grommet holder 40 b also for holding a pen, pencil, paint brush, or the like. And, as mentioned above, the number of grommets may be increased to meet the needs of the user.
  • First holder 30 a for holding a container, such as a cup, or the like, is shown positioned in holding part 34 a. Second holding part 34 b, as illustrated in FIG. 1, may be provided as desired for extra container holding capacity. When work surface device 10 is to be folded for storage or for transport, holder parts, such as 30 b and 30 c, may be stored in storing holder part 32 as illustrated in the example. Container holding parts, such as 30 a, 30 b, and 30 c may be provided in different sizes to accommodate differently-sized containers, and, of course, may be used to hold any desired object besides a container.
  • Base member 16 is ergonomically shaped to conform to the shape of a person's lap. Curved indentation 44 provides for a comfortable and sturdy fit when indentation 44 is placed adjacent to the user of work surface device 10 when it is used as a lap-desk or as a work surface.
  • FIG. 6, a side plan view, shows workpiece support member 12 securely and firmly positioned in a nearly vertical orientation relative to base member 16, which is shown in a horizontal orientation. Member 12 is held securely in the nearly vertical position by positioning the support wires in the support grooves, as discussed above, while its height above member 16 is determined by the angle at which elevator support member 14 is set. FIG. 6 also illustrates how a work instrument, such as the pencil shown in the figure, is supported ready for use by suspension grommet holder 40 a.
  • FIG. 7, a side plan view of the work surface device of the present invention, shows how the three members of work surface device 10 fold relative to one another to provide for the device to be compactly closed for storage or transport.
  • Work surface device 10, adapted for supporting a workpiece, is functionally adapted to be used in a variety of ways. It is contemplated, though, that first surface 12 a of first member 12 most likely will be used to support a workpiece, such as a book or a piece of paper to be used for writing, drawing, painting, or the like, at a height and at an angle that is comfortable, convenient, and at times required by the desired use. It will be understood that the device serves to support any kind of suitable workpiece where the position of the workpiece is important. As was discussed, the workpiece supporting surface 12 a may be raised and lowered relative to the base member of the device and may simultaneously be positioned in a plurality of angled positions to meet the requirements of the user. Third member 16 is used as a sturdy support for the device whether the device is supported by a hard support surface such as a table or work bench, if the device is placed on one's lap, or if the device is used on a bed or chair as a work or eating tray for those who are confined to a bed or chair, for example.
  • With respect to the device as illustrated in FIG. 1, first member 12 may be securely held in any one of a plurality of angled positions by first loosening the wing nuts functionally related to rotable, friction, hinges 42 a and 42 c, positioning first member 12 as desired, and then tightening the wing nuts. Once the nuts are hand-tightened the friction hinges are designed to hold the members in any set position.
  • If a user wishes to elevate workpiece supporting surface 12, second member 14 located between first member 12 and third member 16, is set to the angled position that will achieve the desired height by loosening the winged nuts functionally related to the friction hinged bolts 42 b and 42 d, angularly positioning member 14 with respect to member 16 to raise or lower member 12 to the desired work height, and then tightening the winged nuts to hold member 14 securely in the desired position.
  • If the work surface device is used in conjunction with an activity that requires work tools to be readily available within reach, where the work tools are of the like of a pen, pencil, paint brush, knives, chisels, or such, the tools may be handily and temporarily stored in the grommet holders provided for such use, such as suspension grommet holder 40 a.
  • Although there are many reasons to hold a workpiece in a particular working position, one particularly common reason is to meet the different needs of right-handed and left-handed persons. This is especially true when people are writing while supporting the work surface device on their lab. If, for example, one desires to draft a document while in a semi-reclined position in bed or in a chair, it is considerably more comfortable and convenient for the drafter to be able to orient the workpiece specific to his or her handedness. While using the device of this invention, providing for workpiece orientation is quick and simple. To orient a workpiece, a user simply lifts workpiece support 18 so that its alignment pins 18 d are lifted out of alignment positioning holes 28 and reposition the pins in the alignment holes that will provide for the workpiece to be held in the desired position. Such desired positions, as illustrated for example, in FIG. 4, might be achieved when support 18 a is in a horizontal position, having support 18 a angled for the convenience of a right-handed person, or having support 18 b angled for the convenience of a left-handed person. The alignment pins maintain support 18 securely in the desired position until they are again removed from positioning holes 28.
  • There are many instances when it would be desirable to have a work surface lap-desk available. One example is when one wishes to relax after dinner in an easy chair while working on the crossword puzzle of the day. Using the hard surface provided by the lap-desk of this invention to work on the puzzle ensures that clear marks may be made upon the puzzle without tearing the paper. To use the lap desk, one simply places the work surface device upon one's lap with the ergonomically shaped side of the base position against one's body where the curvature of the base conforms to the shape of a person's lap. This comfort feature, in conjunction with a user's ability to adjust the height, the angle, and the orientation of the workpiece provides for the utmost in comfort and convenience while using the work surface device as a lap desk.
  • Another need that has become widespread in today's world of electronics, is the need for a surface on which to use a laptop computer. The work surface device according to the teaching of the present invention may be used as a lap-desk to support a laptop or alternatively, the work surface device may be supported on a table, such as a kitchen table to be used as a laptop desk. Regardless of where the work surface device is positioned for use, its use enables a laptop user to adjust the position of the screen of the laptop for maximum viewing effectiveness and it also enables a user to position the keyboard in an ergonomically correct position for keying. Although a laptop is often used for recreational purposes, it is also widely used for job or school related tasks. These tasks normally require diligence and industry. If the laptop computer is not positioned in a convenient and comfortable position, a user will soon tire and be easily distracted. Using the work surface device of this invention may contribute significantly to the quality of the work product produced.
  • To fold the work surface device for compact and convenient storage or transport, one need only loosen the wing nuts and fold the three members of work surface device relative to one another as illustrated in FIG. 3 as first member 12, second member 14, and base member 16 are rotably, hingedly connected so as to be easily and rapidly folded together. When work surface device 10 is to be folded for storage or for transport, container holder parts, such as 30 b and 30 c, are removed from holder supports 34 a and 34 b and placed for storage in storing holder part 32.
  • Accordingly, it has been shown that the work surface device, as described herein, is easy to use. It is also affordable to make and to purchase. One contemplated means of manufacture is that the device members be mass produced by any molding process, such as a plastic injection molding technique, although the work surface device could just as well be made of wood, metal, or fiberglass and could be offered as a kit or as a finished product. Thus it has been shown that the invention comprises a lightweight, portable, multiuse and multifunctional work surface device adaptable for a variety of uses in a variety of positions.
  • The foregoing description, for purposes of explanation, uses specific and defined nomenclature to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that the specific details are not required in order to practice the invention. Thus, the foregoing descriptions of specific embodiments are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Those skilled in the art will recognize that many changes may be made to the features such as shape, color, materials of manufacture, other embodiments, and methods of making the embodiments of the invention described herein without departing from the spirit and scope of the invention. Furthermore, the present invention is not limited to the described methods, embodiments, features or combinations of features but includes all the variation, methods, modifications, and combinations of features within the scope of the appended claims. The invention is limited only by the claims.

Claims (20)

1. A work surface device for supporting a workpiece, comprising:
a. a first member,
b. a second member having a first section and a second section,
c. a base member,
d. said first member rotably hinged to said first section of said second member,
e. said base member rotably hinged to said second section of said second member, and
f. means for reversibly securely positioning said first member and said second member at a plurality of angles with respect to each other and with respect to said base member, wherein said base member supports said device.
2. The work surface device, as recited in claim 1, further comprising a support means for supporting the workpiece on a first surface of said first member.
3. The work surface device, as recited in claim 2, wherein said support for the workpiece further comprises supporting the workpiece in various positions on said first surface of said first member.
4. The work surface device, as recited in claim 1, wherein said device further comprises at least one receptacle means functionally adapted for holding a work tool.
5. The work surface device, as recited in claim 1, wherein said device further comprises at least one holder means functionally adapted for holding a container.
6. The work surface device, as recited in claim 5, wherein said at least one container holder means is detachably attached to said device.
7. The work surface device, as recited in claim 6, further comprising means for storing said at least one detached container holder means.
8. The work surface device, as recited in claim 1, further comprising a first edge of said base member shaped to conform to a shape of a person's lap.
9. The work surface device, as recited in claim 1, further comprising wherein said device is made of plastic.
10. The work surface device, as recited in claim 1, further comprising wherein said device is made of wood.
11. A work surface device for supporting a workpiece, comprising:
a. a first member,
b. a second member having a first section and a second section,
c. a base member,
d. said first member rotably hinged to said first section of said second member,
e. said base member rotably hinged to said second section of said second member, and
f. means to reversibly securely position said first member and said second member at a plurality of angles with respect to each other and with respect to said base member, wherein said base member supports said device.
12. The work surface device, as recited in claim 11, further comprising a support for supporting the workpiece on a first surface of said first member.
13. The work surface device, as recited in claim 12, wherein said support for the workpiece further comprises supporting the workpiece in various positions on said first surface of said first member.
14. The work surface device, as recited in claim 11, wherein said device further comprises at least one receptacle means functionally adapted for holding a work tool.
15. The work surface device, as recited in claim 11, wherein said device further comprises at least one holder means functionally adapted for holding a container.
16. The work surface device, as recited in claim 15, wherein said at least one container holder means is detachably attached to said device.
17. The work surface device, as recited in claim 16, further comprising means for storing said at least one detached container holder means.
18. The work surface device, as recited in claim 11, further comprising a first edge of said base member shaped to conform to a shape of a person's lap.
19. The work surface device, as recited in claim 11, further comprising wherein said device is made of plastic.
20. The work surface device, as recited in claim 11, further comprising wherein said device is made of wood.
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US20110147547A1 (en) * 2009-09-18 2011-06-23 Crane Hardware Llc Foldable stand
US20120060724A1 (en) * 2010-08-19 2012-03-15 Jeff Doss Mobile computer lapdesk
US9887024B1 (en) * 2013-01-24 2018-02-06 Lockheed Martin Corporation Cable and connector placement fixture and method for fabricating cable assemblies
US20150041609A1 (en) * 2013-08-06 2015-02-12 Eric Yishun Lee Portable stand for electronic device and external monitor
US9392870B2 (en) 2014-07-14 2016-07-19 Michael J. Suman Adjustable laptop support for electronic devices
US20190281975A1 (en) * 2016-05-04 2019-09-19 Mark Castleberry Platform for electronic devices
US11224287B2 (en) * 2016-05-04 2022-01-18 Mark Castleberry Platform for electronic devices
CN107928129A (en) * 2017-12-01 2018-04-20 哈尔滨弧月科技有限公司 A kind of Portable folding computer desk
US11421814B2 (en) * 2018-05-15 2022-08-23 Beat Affentranger Portable stand for portable electronic devices
US10503207B1 (en) * 2018-12-12 2019-12-10 Dell Products, L.P. Dock for a multi-form factor information handling system (IHS)
US11622621B2 (en) 2021-08-10 2023-04-11 Kirian Obioha Collapsible workstation
WO2025083317A1 (en) * 2023-10-20 2025-04-24 Izcue Ferreira Unay Javier School desk accessory

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