US20080258514A1 - Desk and chair set - Google Patents
Desk and chair set Download PDFInfo
- Publication number
- US20080258514A1 US20080258514A1 US12/146,597 US14659708A US2008258514A1 US 20080258514 A1 US20080258514 A1 US 20080258514A1 US 14659708 A US14659708 A US 14659708A US 2008258514 A1 US2008258514 A1 US 2008258514A1
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- United States
- Prior art keywords
- desk
- assembly
- frame
- chair
- top assembly
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B83/00—Combinations comprising two or more pieces of furniture of different kinds
- A47B83/02—Tables combined with seats
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/08—Table tops; Rims therefor
- A47B13/086—Table tops provided with a protecting coating made of veneer, linoleum, paper or the like
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
- A47B9/20—Telescopic guides
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
- A47B96/20—Furniture panels or like furniture elements
- A47B96/205—Composite panels, comprising several elements joined together
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/02—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board the layer being formed of fibres, chips, or particles, e.g. MDF, HDF, OSB, chipboard, particle board, hardboard
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B21/08—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
- B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/04—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by at least one layer folded at the edge, e.g. over another layer ; characterised by at least one layer enveloping or enclosing a material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/44—Furniture or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/414—Translucent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/552—Fatigue strength
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2479/00—Furniture
Abstract
A desk assembly and method of manufacturing the desk assembly. The desk assembly includes a frame supporting a top assembly. The frame includes two or more leg portions telescopically coupled to one another such that the top assembly is height adjustable. The top assembly is formed from a plastic molded base bonded to a high pressure laminate sheet to form a seamless panel. The seamless panel is straighted from a deformed state during the manufacturing process to a flat surface by adhering the panel to a substrate with adhesive and pressure. The top assembly may include an angled portion set off by a flowing arc to increase user comfort. The desk assembly may include a chair assembly integrally formed with the frame and one or more semi-transparent modesty panels.
Description
- This is a divisional application of U.S. patent application Ser. No. 11/443,526, filed May 30, 2006, which claims the benefit of U.S. Provisional Patent Application No. 60/685,641, filed May 27, 2005, the entirety of which is hereby incorporated by reference.
- The present invention relates to a desk and chair set and more particularly to a student desk and chair set with a seamless durable top surface.
- School desk and chair combinations are often not sufficiently durable. Many desk tops are made with high pressure laminate adhered to particle board where edges are covered with a “T-molding” or other edge bordering. These laminated desk tops often fail by separating, usually with the help of desk users who might pick at any visible seam between desk parts or layers.
- In one embodiment, the present invention is a desk assembly including a desk frame having two or more leg portions and a top assembly supported by the desk frame. The top assembly is seamless and is formed of a plastic molded base bonded to a high pressure laminate sheet. A substrate is adhered to the plastic molded base and high pressure laminate sheet and may be one of molded wood, particle board or plywood. The top assembly may be height adjustable with the leg portions telescopically coupled to one another. The top assembly provides a seamless desk surface to reduce separation failures.
- In another embodiment, the present invention is a desk assembly including a desk frame having two or more leg portions and a top assembly supported by the frame. The top assembly includes a top surface formed with a forward edge and an angled portion set off from the forward edge by a flowing arc. The angled portion slopes at an angle of from about 16°0 to about 20°. At a center of the forward edge of the top surface, the angled portion extends for about two inches from the forward edge to the flowing arc. The angled portion provides an eased portion for the user's comfort.
- In another embodiment, the present invention is a method of forming a top assembly for a desk set. A high pressure laminate sheet is inserted into one side of an injection mold. The high pressure sheet is held in place by a series of vacuum ports. ABS plastic is molded around the high pressure laminate sheet to bond the high pressure laminate sheet to the ABS plastic. Because the two different materials have different shrink rates, the resulting panel is initially deformed. The seamless panel is then straightened and connected to a desk frame. The seamless panel is straightened by adhering the panel to a substrate with adhesive and pressure. The substrate may be one of molded wood, particle board or plywood.
- While multiple embodiments are disclosed, still other embodiments of the present invention will become apparent to those skilled in the art from the following detailed description, which shows and describes illustrative embodiments of the invention. Accordingly, the drawings and detailed description are to be regarded as illustrative in nature and not restrictive.
-
FIG. 1 is an isometric view of a desk and chair set. -
FIG. 2 is an enlarged downward looking isometric view of the desk shown inFIG. 1 . -
FIG. 3 is an upward looking isometric view of the desk shown inFIG. 2 . -
FIG. 4 is an enlarged downward looking isometric view of the chair shown inFIG. 1 . -
FIG. 5 is an upward looking isometric view of the chair shown inFIG. 4 . -
FIG. 6 is a bottom plan view of the chair shown inFIGS. 4 and 5 . -
FIG. 7 is a downward looking isometric view of another embodiment of a desk and chair set. -
FIG. 8 is an upward looking isometric view of the desk and chair set shown inFIG. 7 . -
FIG. 9 is an enlarged exploded isometric view of a portion of a top panel of a top assembly of the desk shown inFIGS. 1-3 , 7 and 8. -
FIG. 10 is an exploded view of the top assembly of the desk. -
FIG. 11 is an isometric view of the top assembly of the desk. -
FIG. 12 is a downward looking isometric view of a frame for the desk. -
FIG. 13 is a side elevation view of the frame for the desk. -
FIG. 14 is a rear elevation view of the frame for the desk. -
FIG. 15 is a rear elevation view of the desk. -
FIG. 16 is an enlarged sectional view taken along line 16-16 ofFIG. 15 . -
FIG. 17 is a brief flow chart of a process for forming the top assembly of the desk. -
FIG. 18 is a downward looking isometric view of a book box assembly for the desks ofFIGS. 1-3 , 7 and 8. -
FIG. 19 is an isometric view of a modesty panel for the desks ofFIGS. 1-3 , 7 and 8. -
FIG. 20 is an isometric view of the desk shown inFIGS. 1-3 with an attached book box assembly and modesty panel. - While the invention is amenable to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and are described in detail below. The intention, however, is not to limit the invention to the particular embodiments described. On the contrary, the invention is intended to cover all modifications, equivalents, and alternatives failing within the scope of the invention as defined by the appended claims.
- The present invention, in one embodiment, relates to a desk and
chair set 10, shown inFIG. 1 , of the type used by school children. The set includes adesk assembly 12 and achair assembly 14. The desk and chair set is simply constructed, robust, durable, aesthetically pleasing and yet moderately priced. The writing ortop surface 16 of the desk assembly is seamless so as to minimize separation failures common to student desks. - Referring now to
FIGS. 2 and 3 , thedesk assembly 12 includes atop assembly 20, aframe 22 and fourplastic glides top assembly 20 includes the generallyflat top surface 16 with an angled oreased edge portion 34 set off by a flowingarc 36 to enhance comfort for a desk user. The desk does not include sharp corners at the user interface so as to avoid increased pressure on the user's forearm area. - The
desk frame 22 includes twoleg portions cross bar portion 44 and tworunner portions cross bar portion 44 may be welded to theleg portions - The
desk assembly 12 is height adjustable by virtue ofopenings frame leg portion 42 and similar openings in the leg portion 40 (not shown) which enable the receipt of fasteners as will be explained below. The desk assembly may come in different sizes as either or both the frame and the top assembly may be scaled up or down as a function of the size of children expected to use the desk and chair set. - The
chair assembly 14 shown in detail inFIGS. 4 , 5 and 6 and may include a moldedplastic shell 60 in which aback portion 62 and aseat portion 64 are integrally formed. Anopening 66 may be provided between the back portion and the seat portion. The shell is mounted to achair frame 68 and fourplastic guides - The
chair frame 68 may be formed of steel tubing of the same type and dimension as the desk tubing and may include an invertedU-shaped back portion 80, a generallyU-shaped seat portion 82, tworear leg portions runner portions glides shell 60 is attached to the frame in any convenient fashion, such as threadedfasteners back portion 80 of the chair frame to theback portion 62 of theshell 60. A second pair of threadedfasteners seat portion 82 of the chair frame to theseat portion 64 of theshell 60 and a group ofrivets integral shell flanges 110, 112 with theseat portion 82 of thechair frame 68. It is to be noted that the chair assembly may be scaled up or down as a function of the size of the expected user. - Another embodiment of a desk and chair set 116 is shown in
FIGS. 7 and 8 . The connected set includes anintegral frame 118, achair shell 120 that may be identical to theshell 60 of thechair assembly 14 illustrated inFIGS. 4-6 and atop assembly 122 that may be identical to thetop assembly 20 illustrated inFIGS. 2 and 3 . Connecting thechair shell 120 and thetop assembly 122 is theframe 118 in which the desk and chair sharecommon runner portions frame 118. The chair and desk runners are integral such that the distance between thechair shell 120 and thetop assembly 122 is fixed. The remainder of thechair frame 118 including aback portion 130, aseat portion 132 and tworear leg portions chair frame 68 described in relation toFIGS. 4-6 , and twoleg portions cross bar portion 144 of the desk set 116 may be identical to theleg portions cross bar portion 44 described in relation to thedesk frame 22 shown inFIGS. 2 and 3 . - Plastic guides 150, 152, 154, 156 may be attached to the
frame 118 at the lower corners as shown. The size of the desk and chair set 116 may be scaled up or down as a function of the size of the expected user. - In
FIG. 9 a portion of thedesk top assembly 20 is illustrated and includes a high pressure laminate sheet (“HPL”) 160 and a plastic moldedbase 162 to form a durable, bondedpanel 163. The panel is created in an injection molding machine well known to those skilled in the art. Thehigh pressure laminate 160 is placed on one side of the injection mold and is held in place by a series of vacuum ports. Plastic is then injected and molded to the back of the HPL sheet thereby bonding the two materials together. The plastic may be ABS and assumes the shape of the base 162 in the mold. Anindentation 164 is provided in the top surface of the base to accommodate the HPL sheet. Because two different materials with different shrink rates are used, the resulting bondedpanel 163 is initially deformed when cooled. - The top assembly forming process continues by attaching the distorted bonded
panel 163 of HPL and ABS to asubstrate 165 using an adhesive and pressure or a combination of adhesive, pressure and mechanical fasteners. This step straightens - The top assembly is completed by the addition of a pair of
steel brackets 170, 172 which include leg supports 174, 176, and abottom cover 178 which includessupport sleeves 180, 182. The brackets may be attached to thesubstrate 165 with any suitable fasteners such asscrews bottom cover 178 may be attached to the bonded HPL/ABS panel 163 using any suitable fasteners, such asscrews brackets 170, 172 and thesubstrate 165 between thebottom cover 178 and the bondedpanel 163. Thebottom cover 178 may be formed of ABS. - As mentioned above, the
desk top assembly 20 is height adjustable using theopenings openings support 174, whereby fasteners passing through the aligned openings of the desk frame and the supports fix the top assembly at a desired predetermined vertical elevation. Openings are also formed in thesupport 176 but are not visible inFIGS. 10 and 11 . - Referring now to
FIGS. 12-14 , thedesk frame 22 is shown in more detail and includes the twoleg portions cross bar portion 44 and therunner portions openings top assembly 20 to be vertically adjustable in relation to thedesk frame 22. - In one version of the desk frame, the width of the leg portions is approximately 23 inches, the width of the runners is approximately 26 inches and the height of the desk frame is approximately 22 inches. The cross bar portion may be located approximately 10 inches from the top of the frame and the frame may have an angular disposition between the runner portions and the leg portions of about 77 degrees. As mentioned, it is to be understood that the desk frame may be built in smaller or larger versions as a function of the size of the people expected to be using the desk, and the desk frame as well as the chair frame may have a chrome or powder coat or any other suitable finish.
- A complete desk may be seen in
FIG. 15 including thedesk frame 22 and thetop assembly 20. Thesupports leg portions sleeves 180, 182 thereby giving the aesthetically appealing appearance of the desks shown inFIGS. 1-3 , 7, 8 and 15. As mentioned above, both the supports and the leg portions of the desk frame include vertically disposed openings and by aligning the openings, fasteners, such as pins or screws, may be inserted to allow vertical adjustment of thetop assembly 20 relative to thedesk frame 22 and relative to a floor upon which the desk is disposed. - Referring now to
FIG. 16 , there is illustrated in more detail thetop assembly 20 which includes the bondedpanel 163, consisting of the HPL sheet to which the ABS plastic is molded around so as to create the molded-in, seamlesstop surface 16, thebacking substrate 165, and thebottom cover 178. Thecover 178 and thepanel 163 includebosses screws - The eased
edge portion 34,FIGS. 2 and 16 , slopes at an angle of about 16-20 degrees, and preferably about 18 degrees, and at the center of the desk the eased edge portion extends for about two inches from anedge 242 to thearc 36. This feature provides superior comfort to the desk/chair set user. - One embodiment of a process for forming the top assembly is briefly illustrated in a flow diagram 250,
FIG. 17 , and may include the steps of inserting 252 the high pressure laminate sheet into one side of an injection mold, holding 254 the high pressure laminate sheet by a series of vacuum ports, molding the ABS plastic around the HPL sheet to bond to theHPL sheet 160 to theABS base 162, the molding step being designated 256, using an adhesive and pressure to attach thesubstrate 165 to theseamless panel 163, this step being designated 258, fastening 260 thebottom cover 178 to thepanel 163 and connecting 262 thetop assembly 20 to thedesk frame 22. - In more detail the process of manufacturing and assembling of the desk is as follows. The HPL sheet having been routered to shape is placed in a holding fixture to ensure that the part is oriented in the proper direction. A linear positioning device picks the HPL sheet from a stack using suction cups and vacuum. The linear positioning device verifies that the sheet is in place through the use of vacuum signal switches. The sheet is positioned above a mold until a preceding cycle is completed. The mold opens to full stroke and the linear positioning device descends with the HPL sheet to a programmed centered position. The sheet is moved to the mold surface by the linear positioning device and light pressure is applied until vacuum (reduced pressure) in the mold, which is generated through vacuum pumps and applied through small port holes in the mold surface, holds the sheet in position. When the vacuum level reaches a minimum of about 21 inches Hg, the linear positioning device retracts. The linear positioning device then drops down approximately four inches and shifts to within one inch of the opposite mold face and begins generating vacuum in four suction cups on that side of the mold. When in position the press ejects a part forward until contact is made with the suction cups.
- When a correct vacuum signal is received by the linear positioning device ejectors retract and the part is raised out of the mold where it is positioned until the mold closes and an injection unit fills the balance of the cavity with ABS plastic. Through heat and pressure the HPL sheet bonds in place with the ABS to form the
top panel 163. When mold closes the linear positioning device transports the panel out of the press area to a position above a conveyor belt. The panel descends and rotates about 90 degrees and then is released to the conveyor belt where the panel is conveyed outside of a safety cage for finishing procedures. The linear positioning device moves back into position above the HPL sheet stack. The cycle repeats. The panel is placed in a fixture and clamped. Adhesive is applied to a bottom surface of the panel. A substrate is positioned onto the panel. A top clamp is closed and locked. The panel/substrate combination remains clamped until the adhesive is cured. The bonded panel and substrate is then removed from the clamping station. The supports and bottom cover are attached with threaded fasteners. The top assembly is connected to the desk frame. Beyond the specific steps mentioned above, standard molding techniques, equipment, temperatures and pressures as are known in the art are used in the process. It is also to be noted that variations of the process steps may be used without departing from the invention described herein. - Referring now to
FIG. 18 , there is illustrated abook box assembly 270 having twoside walls 272, 274, aback wall 276, abottom wall 278 and anopen front 280.Fasteners lower cover 178 and thesubstrate 165 of thetop assembly 20 to provide a student with a space for storing books, papers and school supplies. The book box assembly is made of semi-transparent molded thermoplastic such that light and objects are visible. For example, the material may be styrene methyl methacrylate copolymer sold under the brand ZYLAR 531 by the Nova Chemical Company of Calgary, Alberta, Canada. The plastic may have a nominal thickness of about 0.125 inches and includes a texture identified as MT 11030 (Mold Tech 11030). The product has a transmittance of about 89% and a haze of about 1.8%. - Referring to
FIG. 19 , there is illustrated a moldedmodesty panel 300 having acenter portion 302 and twoend sleeves leg portions desk frame 22. Adesk 310 having attached thebook box assembly 270 and themodesty panel 300 is illustrated inFIG. 20 . The material of the modesty panel is frosted polycarbonate sold under the Plexiglass brand having a nominal thickness of about 0.125 inches. As with the book box assembly, the modesty is semi-transparent having approximately the same translucency characteristics as the book box assembly. The advantage of having semi-transparent modesty panels and book box assemblies is that student property may be monitored by school personnel. - Manufacture and assembly of the desk and chair sets are relatively easy and straightforward. Both frames for the desk and the chair are made of tubular steel which are cut and formed to the shapes shown in the drawing. The chair shell is molded as one piece and connected to the chair frame. The desk top assembly is formed as described above to provide a seamless bonded top panel and the top assembly is adjustably connected to the desk frame.
- The material, dimensions and shapes described with respect to the embodiments generally shown in
FIGS. 1-20 may be altered. For example, molded or machined wood, thermoplastics or other compositions may be used for thepanel 163. Thesubstrate 165 may be formed of wood, wood product board, thermoplastic composition or other suitable material. There are also many thermoplastics that may be textured of otherwise formed to be semi-transparent. - Various modifications and additions can be made to the exemplary embodiments discussed without departing from the scope of the present invention. For example, while the embodiments described above refer to particular features, the scope of this invention also includes embodiments having different combinations of features and embodiments that do not include all of the described features. Accordingly, the scope of the present invention is intended to embrace all such alternatives, modifications, and variations as fall within the scope of the claims, together with all equivalents thereof.
Claims (15)
1. A desk assembly comprising:
a desk frame including two or more leg portions; and
a top assembly supported by the desk frame, the top assembly formed of a plastic molded base bonded to a high pressure laminate sheet.
2. The desk assembly of claim 1 wherein the top assembly further includes a substrate adhered to the plastic molded base and high pressure laminate sheet.
3. The desk assembly of claim 2 wherein the substrate is one of molded wood, particle board or plywood.
4. The desk assembly of claim 1 wherein the top assembly is seamless.
5. The desk assembly of claim 1 wherein the top assembly is height adjustable.
6. The desk assembly of claim 5 wherein each leg portion includes an upper portion telescopically coupled to a lower portion.
7. The desk assembly of claim 1 wherein a forward edge of the top surface includes an angled portion set off by a flowing arc.
8. The desk assembly of claim 1 further comprising a chair assembly coupled to the desk frame.
9. The desk assembly of claim 8 wherein the chair assembly includes a chair frame integrally formed with the desk frame.
10. The desk assembly of claim 1 further comprising one or more semi-transparent panels covering the desk frame.
11. A desk assembly comprising:
a desk frame including two or more leg portions; and
a top assembly supported by the desk frame, the top assembly including a top surface formed with a forward edge and an angled portion set off from the forward edge by a flowing arc.
12. The desk assembly of claim 11 wherein the angled portion slopes at an angle of from about 16° to about 20°.
13. The desk assembly of claim 11 wherein at a center of the forward edge of the top surface, the angled portion extends for about two inches from the forward edge to the flowing arc.
14. The desk assembly of claim 11 wherein the top surface of the top assembly is seamless.
15. The desk assembly of claim 11 wherein the top assembly is formed of a plastic molded base bonded to a high pressure laminate sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/146,597 US20080258514A1 (en) | 2005-05-27 | 2008-06-26 | Desk and chair set |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US68564105P | 2005-05-27 | 2005-05-27 | |
US11/443,526 US20070045485A1 (en) | 2005-05-27 | 2006-05-30 | Desk and chair set |
US12/146,597 US20080258514A1 (en) | 2005-05-27 | 2008-06-26 | Desk and chair set |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/443,526 Division US20070045485A1 (en) | 2005-05-27 | 2006-05-30 | Desk and chair set |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080258514A1 true US20080258514A1 (en) | 2008-10-23 |
Family
ID=36950139
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/443,526 Abandoned US20070045485A1 (en) | 2005-05-27 | 2006-05-30 | Desk and chair set |
US12/146,597 Abandoned US20080258514A1 (en) | 2005-05-27 | 2008-06-26 | Desk and chair set |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/443,526 Abandoned US20070045485A1 (en) | 2005-05-27 | 2006-05-30 | Desk and chair set |
Country Status (2)
Country | Link |
---|---|
US (2) | US20070045485A1 (en) |
WO (1) | WO2006128101A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8307769B1 (en) | 2009-07-31 | 2012-11-13 | Mity-Lite, Inc. | Plastic and plywood laminate table with drop corner |
US8550012B2 (en) | 2011-10-27 | 2013-10-08 | Mity-Lite, Inc. | Leg locking and folding mechanism for folding table |
US8671850B2 (en) | 2011-10-27 | 2014-03-18 | Mity-Lite, Inc. | Convertible tabletop with pivotal modesty panel |
US20160120316A1 (en) * | 2012-11-02 | 2016-05-05 | Paragon Furniture, Lp | Chair system |
CN107125944A (en) * | 2017-05-24 | 2017-09-05 | 晋江市意翔环保科技有限公司 | A kind of multifunctional tea-table |
US11884045B2 (en) | 2022-06-23 | 2024-01-30 | Haworth, Inc. | Structural laminate component |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US7841759B2 (en) * | 2007-10-10 | 2010-11-30 | Apple Inc. | LED backlight for display systems |
US9226579B2 (en) * | 2012-11-02 | 2016-01-05 | Paragon Furniture LP | Modular desk systems and methods |
USD812920S1 (en) * | 2016-12-06 | 2018-03-20 | Duc Van Pham | Smart bathroom footstool |
JP6989344B2 (en) * | 2017-10-20 | 2022-01-05 | 株式会社オカムラ | Top plate elevating furniture |
USD960612S1 (en) * | 2020-01-31 | 2022-08-16 | Lakeshore Learning Materials, Llc | Desk |
JP1680353S (en) * | 2020-06-23 | 2021-03-01 | ||
US11849852B2 (en) * | 2020-10-27 | 2023-12-26 | Christian Calderon | Multipurpose productivity device |
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Also Published As
Publication number | Publication date |
---|---|
WO2006128101A1 (en) | 2006-11-30 |
US20070045485A1 (en) | 2007-03-01 |
WO2006128101A9 (en) | 2007-01-11 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |