EP1093736B1 - Transportfähige Staffelei - Google Patents

Transportfähige Staffelei Download PDF

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Publication number
EP1093736B1
EP1093736B1 EP01100016A EP01100016A EP1093736B1 EP 1093736 B1 EP1093736 B1 EP 1093736B1 EP 01100016 A EP01100016 A EP 01100016A EP 01100016 A EP01100016 A EP 01100016A EP 1093736 B1 EP1093736 B1 EP 1093736B1
Authority
EP
European Patent Office
Prior art keywords
easel
portions
base pedestal
pedestal portion
recited
Prior art date
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.)
Expired - Lifetime
Application number
EP01100016A
Other languages
English (en)
French (fr)
Other versions
EP1093736A2 (de
EP1093736A3 (de
Inventor
Michael Rellinger
Richard Rogers Gilbert
Sara Edmund Green
John Jepsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quartet Manufacturing Co
Original Assignee
Quartet Manufacturing Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Quartet Manufacturing Co filed Critical Quartet Manufacturing Co
Publication of EP1093736A2 publication Critical patent/EP1093736A2/de
Publication of EP1093736A3 publication Critical patent/EP1093736A3/de
Application granted granted Critical
Publication of EP1093736B1 publication Critical patent/EP1093736B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/04—Easels or stands for blackboards or the like
    • A47B97/08—Easels or stands for blackboards or the like foldable

Definitions

  • This invention relates to a portable easel and is more particularly directed to such an easel which may be easily handled, and collapsed for convenient storage and transportation, but which is also sturdy and able to stand up to heavy use and is very durable.
  • Each of said portable easels comprises a base pedestal portion telescopically engaged with a display portion upon which display materials may be removably secured.
  • the telescopic engagement of the base and display portions is such that both easels may be moved between extended and collapsed configurations.
  • interlocking means for securing said portions in a selected position and leg means mounted on the base portion must be independently manipulated.
  • the interlocking means generates a friction force between the base and display portions so as to secure said portions together.
  • This interlocking means is operated by a user acting on either a spring biased stopper or a wing bolt.
  • the leg means of each easel is foldably mounted on the base pedestal portion and is hingedly rotated away from said portion so as to provide a stable base for the easel when in an extended position.
  • interlocking means used in the aforementioned prior art is adequate for light use, said interlocking means does not provide an easel with a sturdy and durable frame capable of withstanding heavy use.
  • a first aspect of the present invention provides a portable easel comprising: a base pedestal portion having leg means pivotally mounted on and foldable toward and away from said base pedestal portion for securing said base pedestal portion upright on a surface; a display portion telescopically engaged with said base pedestal portion and having means for removably securing thereon display materials; said portions being movable relative to one another into extended and collapsed positions; said portions having cooperating interlocking means for securing said portions in one of a plurality of selected positions when said leg means are pivoted and folded away from said base pedestal portion; characterised in that at least one of said portions comprising a hollow body having spaced apart walls, said walls having reinforcing recesses and wall surfaces arranged to provide rigidity across said body.
  • a second aspect of the present invention provides a portable easel comprising: a base pedestal portion having leg means mounted thereon movable for securing said base pedestal portion upright on a surface; a display portion engaged with said base pedestal portion and having means for removably securing thereon display materials; said portions being movable relative to one another into extended and collapsed positions; said portions having cooperating interlocking means for securing said portions in one of a plurality of selected positions; characterised in that said portions each comprise a hollow body having spaced apart walls closed at their edges, said walls having reinforcing recesses and wall surfaces arranged to provide rigidity across said body.
  • an easel embodying the present invention may be blow molded from plastic materials, such as polyethylene plastic, which resists scratches and dents.
  • the easel embodying the present invention comprises a pedestal base portion and a display portion which may be arranged in selected positions. Each portion is preferably blow-molded into a unitary piece having integral front and rear walls and reinforcing ribs and spacers molding the walls in spaced relation to one another.
  • This novel easel has built-in leg means for holding the unit upright which may be used to set up the easel into a secured lockable selected position.
  • the device preferably has built into it means for use and storage of writing and display materials, such as markers, tape and the like, and also means for holding standard paper tablets, easel pads, flipcharts and the similar displays, which may be used without fuss.
  • easel Construction of the preferred embodiment of easel provides a light weight and strong unit, which is easy to handle and has long life, and folds up into a self-contained unit that is lightweight, balanced and portable.
  • the preferred easel stacks and stores easily, and like devices have interlocking members which provide for easy storage, transport and use.
  • the preferred easel may be used on a floor or table, and is fully adjustable for that purpose.
  • the preferred easel comprises of a novel base portion and a novel display portion, each portion comprised of integral reinforced spaced apart walls, one portion adapted for being slideably telescoped into the other portion.
  • This arrangement provides a sturdy but collapsible easel which is simple and quick and efficient to set up and includes novel means for locking the easel in upright position.
  • the preferred easel has integral compartments for containing easel accessories which may be closed and used for storage and transport of these utensils when not in use.
  • the preferred easel includes guide and ramp means to facilitate easy telescoping and a stand-off structure to prevent unintended flexing of the easel sections. Grasping means and carrying means are provided at its center of gravity when collapsed for convenient set up and transporting of the same.
  • the easel 10 has a pedestal base portion 11 and a display portion 12, upon which a pad of paper P may be affixed or indicia placed thereon for display to a group of people in a conference or meeting situation.
  • the pedestal base portion 11 has spaced apart feet 13 and upright members 14, which may be bridged by the upper portion thereof defining compartments 15 for holding markers, tape and the like.
  • Legs 18 are arranged and foldable into corresponding grooves 19 on the rear wall 17 of the pedestal base portion 11.
  • a flat display board 20 is on one face of the display portion 12, and is intended to back up a writing pad P or other display.
  • a spring clamp assembly 21 is secured to an upper edge of the display board 20 so that a pad P may be clipped by the spring clamp assembly to the display board 20 for securing the pad P thereon in a way for pages of the pad to be flipped over the top 22 of the board.
  • Lifting handles 23 may be molded into side edges 24 of the display portion 12 for easy and balanced lifting and collapsing of the display portion relative to the pedestal base portion 11.
  • the legs 18 are preferably tubular and U-shaped and have a bottom member 25 bridging upright side members 26 which are pivotally secured to the rear wall 17 of the pedestal base portion 11 by means of upper toggle bracket assemblies 27 through short toggle links 27a, preferably screw mounted to the rear wall and leg.
  • the side leg members 26 also are secured to the rear wall 17 by lower toggle bracket assemblies 28, preferably also screw mounted to the rear wall and leg, through long toggle links 29, which define arcs for moving the legs 18 toward and away from the pedestal base portion 11 during set up and storage of the easel 10, as shown schematically in Figure 15, which depict the movement of the legs from position 1 to position 2, and vice versa, in the direction of the respective arrows, as the leg ends 51 are articulated into and out of the apertures 52, in a manner and for a purpose hereafter discussed.
  • the leg side members 26 have an integral cross member 30 at the connection of the toggle links 29 to provide rigidity of the structure when set up.
  • the rear wall 17 of the pedestal base has several recess and protrusions.
  • Recesses 31 provide handles for carrying the easel 10 selectively from either side of the easel when collapsed.
  • Recess 32 provides a handle for carrying the easel by the leg cross member 30 in an upright position when collapsed.
  • Recess 33 provides rigidity to the pedestal base portion 11 and includes kiss-offs or stress absorbing wells 33a for absorbing strain during collapse and extension of the display portion relative to the base portion.
  • Bottom Recess 34 may be used for grasping the legs 18 and pulling them out of the leg recesses during set up.
  • Leg cross member protrusions 35 act as guides for properly seating the leg cross member 30 when the legs are closed against the pedestal base portion in the leg recesses 19.
  • a rounded protrusion 36 having an inverted V shaped cross section is arranged across the lower side of the rear wall and reinforces the wall 17.
  • the rear wall 37 is unitary with the front wall forming the display board 20, the rear wall has a plurality of ribs 38 and stress absorbing wells 39, which stiffen and space apart the front display board 20 and rear wall 37 and absorb stress during extension and collapse of the base and display portions 11 and 12, respectively.
  • ribs 38 On each side of and between the ribs 38, are a plurality of ramps 40 which when the easel is assembled preferably have a steeper taper in the direction of the feet 13 and a relatively more shallow taper in the direction of the top of the display board, and below each of these ramps 40 is a stress absorbing well 41.
  • a ledge 43 may be provided on the bottom edge of the display board 20 which can act as a lip for balancing a marker when the easel 10 is in use, and this ledge 43 also interlocks with rounded protrusion 36 on the rear wall 17 of the pedestal base portion 11 when collapsed; and the upper face of the board top 22 has a recess 42 which corresponds to a protrusion 43a on the rear wall 17 of the pedestal base portion 11.
  • the spring clamp assembly 21 is preferably screw mounted to the front wall of the display board 20 and may have posts 44 having free ends over which drilled holes H in the pad are installed, and this assembly preferably comprises an inverted L shaped clamp plate 45 arranged over the face of the board 20 for holding the upper edge of the pad P and a backer strip 46 which has a spring 47 urging the plate 45 over the pad toward the strip 46.
  • the rear wall 37 of the display portion 12 is formed with spaced apart vertically arranged tracks 48 and ridges 49, and the pedestal base portion 11 has inside edge member 50 formed corresponding to and interlocking with the tracks 48 and ridges 49 for sliding the display portion 12 upwardly or downwardly along the inside edge members 50 relative to the display portion 12 for elevating or lower the display portion.
  • the rear wall 37 of the display portion 11 has formed in it two sets of wedge shaped notches, one set arranged near the top 55 and the other set arranged near the bottom 56 of the display portion rear wall 37, each vertically and horizontally aligned, for receiving the leg ends 51, thus locking the display portion relative to the base portion selectively in the table top position shown in Figure 12 (using the top set 55 of notches) or the floor position shown in Figure 13 (using the bottom set 56 of notches).
  • bars 57 are formed on the front wall 16 of the base portion, above the apertures 52, and corresponding bumps 58 are formed in the rear wall 37 of the display portion to restrict the movement of the display portion 12 downwardly on the base portion 11 and to help hold the portions in position once adjusted, as shown in Figures 12 and 13.
  • the display portion 12 when the display portion 12 is telescoped downwardly over the base pedestal portion 11 in the manner described, the compartments 15 are closed and covered by the display portion. Thus, materials stored in these compartments may be safely stored, transported and reused when the easel are needed again.
  • easels 10 are stored in the position shown in Figure 2, except the legs 18 are folded against the leg recess 19, laid horizontally stacked one easel upon the next easel, so that they interlock, as described, for stability.
  • the upper easel is removed from the pile, and its display portion 12 may be extended, as shown in Figure 1, if used on a floor, or telescoped, if used on a table, as shown in Figure 2, with the legs folded away from the pedestal base 11 and in interlocked position with the display portion 12, as shown in Figures 12 and 13, respectively.
  • a change from floor mount to table mount, or vice versa may be easily accomplished, by slightly folding the leg ends 51 to clear the notches 55 or 56, moving the board 20 upwardly or downwardly, and re-locking the leg ends into the corresponding notches.

Landscapes

  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Fuel Cell (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (14)

  1. Tragbare Staffelei (10), umfassend: einen Basisgestellabschnitt (11) mit Beinmitteln (18), die gelenkig an dem genannten Basisgestellabschnitt (11) montiert und zu ihm hin und von ihm weg klappbar sind, um den genannten Basisgestellabschnitt (11) aufrecht auf einer Oberfläche zu befestigen; einen Darstellungsabschnitt (12), der teleskopartig mit dem genannten Basisgestellabschnitt (11) in Eingriff ist und Mittel zum abnehmbaren Befestigen von Darstellungsmaterialien daran hat; wobei die genannten Abschnitte (11, 12) relativ zueinander in ausgezogene und zusammengeschobene Positionen bewegt werden können; wobei die genannten Abschnitte (11, 12) kooperierende Zusammenfügungsmittel zum Befestigen der genannten Abschnitte (11, 12) in einer von einer Mehrzahl von ausgewählten Positionen haben, wenn die genannten Beinmittel (18) von dem genannten Basisgestellabschnitt (11) weg geschwenkt und geklappt werden; dadurch gekennzeichnet, dass wenigstens einer der genannten Abschnitte (11, 12) einen Hohlkörper mit voneinander beabstandeten Wänden (16, 17; 20, 37) umfasst, wobei die genannten Wände Verstärkungsausnehmungen (33, 48) und - wandflächen (36, 49) haben, die zur Versteifung über den genannten Körper angeordnet sind.
  2. Staffelei nach Anspruch 1, bei der die genannten Abschnitte (11, 12) jeweils aus unitärem blasgeformtem Kunststoffmaterial ausgebildet sind.
  3. Staffelei nach Anspruch 1 oder Anspruch 2, bei der die genannten Abschnitte (11, 12) Mittel (36, 42, 43, 43a) zum Zusammenfügen gleicher Staffeleien, aufeinander gestapelt, für Transport und Lagerung haben.
  4. Staffelei nach einem der vorhergehenden Ansprüche, bei der das genannte kooperierende Zusammenfügungsmittel eine Öffnung (52) durch den genannten Basisgestellabschnitt (11) und auf die genannte Öffnung (52) ausgerichtete Aussparungen (55, 56) in dem genannten Darstellungsabschnitt (12) hat und vorzugsweise (ein) Gelenkmittel zum Bewegen eines Teils (51) der genannten Beinmittel (18) durch die genannte Öffnung (52) und in eine entsprechende Aussparung hat, um die genannten Abschnitte (11, 12) in einer ausgewählten Position zu befestigen.
  5. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte Basisgestellabschnitt (11) einstückig ausgebildete Griffmittel (31) hat, die ergriffen werden können, wenn die genannte Staffelei in dem zusammengeklappten Zustand ist.
  6. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte hohle Abschnitt Rippen- (33, 38) und Vertiefungsmittel (33a, 39) zum Verstärken des genannten Abschnitts hat.
  7. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte Darstellungsabschnitt (12) eine flache Tafelfläche (20) auf einer Seite hat, die den Beinmitteln (18) an dem genannten Basisgestellabschnitt (11) entgegengesetzt ist, wobei die Ränder (24) des genannten Darstellungsabschnitts (12) zwischen der genannten Tafelfläche (20) vorzugsweise einander entgegengesetzte Haltegriffe (23) zum teleskopartigen Verschieben der genannten Abschnitte (11, 12) in den ausgezogenen und zusammengeschobenen Zustand haben.
  8. Staffelei nach Anspruch 7, bei der ein Rand der genannten Tafelfläche (20) eine Klemmenbaugruppe (21) zum Befestigen von Darstellungsmaterialien an der genannten Fläche (20) hat, wobei die genannte Klemmenbaugruppe (21) vorzugsweise ein Zapfenelement (44) zum Befestigen eines mit Bohrungen versehenen Blocks an der genannten Fläche (20) oder ein(e) über die genannte Tafelfläche (20) angeordnetes Klammerelement und zwischengelegte Gegenleiste, um das genannte Darstellungsmaterial in seiner Position zu halten, wobei ein Federelement (47) vorzugsweise zwischen dem genannten Klammerelement und der genannten Gegenleiste eingesetzt ist zum Drängen des genannten Klammerelements gegen die genannte Tafelfläche (20).
  9. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte Basisgestellabschnitt (11) einstückig ausgebildete Kammern (15) hat, die offen sind, wenn die genannten Abschnitte (11, 12) ausgezogen sind, und geschlossen sind, wenn die genannten Abschnitte (11, 12) in der zusammengeschobenen Position sind.
  10. Staffelei nach einem der vorhergehenden Ansprüche, die ferner mit den genannten Beinmitteln (18) assoziierte Elemente zum Aufrechthalten der genannten Staffelei in einer ausgewählten ausgezogenen oder zusammengeschobenen Position umfasst, wobei die genannten Beinmittel (18) vorzugsweise mit den genannten kooperierenden Zusammenfügungsmitteln assoziiert sind und die genannten Abschnitte (11, 12) entfernbar aneinander befestigen, wenn sie in der ausgewählten Position sind.
  11. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte Basisgestellabschnitt (11) und der genannte Darstellungsabschnitt (12) jeweils Hohlkörper mit voneinander beabstandeten Wänden mit Verstärkungsausnehmungen und -wandflächen haben, die zur Versteifung über den genannten Körper angeordnet sind.
  12. Staffelei nach einem der vorhergehenden Ansprüche, bei der der genannte Hohlkörper bearbeitete Ränder hat.
  13. Tragbare Staffelei (10), umfassend: einen Basisgestellabschnitt (11) mit Beinmitteln (18), die beweglich daran montiert sind, um den genannten Basisgestellabschnitt (11) aufrecht auf einer Oberfläche zu befestigen; einen Darstellungsabschnitt (12), der mit dem genannten Basisgestellabschnitt (11) in Eingriff ist und Mittel zum abnehmbaren Befestigen von Darstellungsmaterialien daran hat; wobei die genannten Abschnitte (11, 12) relativ zueinander in ausgezogene und zusammengeschobene Positionen bewegt werden können; wobei die genannten Abschnitte (11, 12) kooperierende Zusammenfügungsmittel zum Befestigen der genannten Abschnitte (11, 12) in einer von einer Mehrzahl von ausgewählten Positionen haben; dadurch gekennzeichnet, dass die genannten Abschnitte (11, 12) jeweils einen Hohlkörper mit voneinander beabstandeten, an ihren Rändern geschlossenen Wänden umfassen, wobei die genannten Wände Verstärkungsausnehmungen (33, 48) und -wandflächen (36, 49) haben, die zur Versteifung über den genannten Körper angeordnet sind.
  14. Staffelei nach Anspruch 13, die ferner Rampen- und Absatzmittel (40, 57) an den genannten Abschnitten (11, 12) zum Einschränken der Bewegung des genannten Darstellungsabschnitts (12) relativ zu dem genannten Basisabschnitt (11) während der Bewegung der genannten Abschnitte (11, 12) in einer Richtung umfasst, die aber die Bewegung der genannten Abschnitte (11, 12) in einer entgegengesetzten Richtung nicht beeinträchtigen.
EP01100016A 1993-06-09 1994-05-25 Transportfähige Staffelei Expired - Lifetime EP1093736B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US7473393A 1993-06-09 1993-06-09
US74733 1993-06-09
EP94303760A EP0628267B1 (de) 1993-06-09 1994-05-25 Transportfähige Staffelei

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP94303760A Division EP0628267B1 (de) 1993-06-09 1994-05-25 Transportfähige Staffelei

Publications (3)

Publication Number Publication Date
EP1093736A2 EP1093736A2 (de) 2001-04-25
EP1093736A3 EP1093736A3 (de) 2001-08-16
EP1093736B1 true EP1093736B1 (de) 2006-03-22

Family

ID=22121352

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94303760A Expired - Lifetime EP0628267B1 (de) 1993-06-09 1994-05-25 Transportfähige Staffelei
EP01100016A Expired - Lifetime EP1093736B1 (de) 1993-06-09 1994-05-25 Transportfähige Staffelei

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP94303760A Expired - Lifetime EP0628267B1 (de) 1993-06-09 1994-05-25 Transportfähige Staffelei

Country Status (3)

Country Link
EP (2) EP0628267B1 (de)
AT (1) ATE214245T1 (de)
DE (2) DE60124795D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6889952B2 (en) 2001-11-02 2005-05-10 Boone International, Inc. Multi-position presentation easel
DE10260587A1 (de) * 2002-12-21 2004-07-15 Jakob Maul Gmbh Flipchart

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680932A (en) 1954-06-15 Foldable painter s outfit
US3195849A (en) 1964-01-02 1965-07-20 Robert B Maddox Associates Inc Easel construction
US3512486A (en) * 1968-02-01 1970-05-19 Felix P Blanchard Combined folding ironing board,table,drawing board and easel
GB1396310A (en) * 1971-05-14 1975-06-04 Cobworth Ltd Easels
US4042203A (en) 1975-10-07 1977-08-16 Warkentin Verona D Easel
FR2484226B1 (fr) * 1980-06-11 1986-11-07 Mourin Remy Table-chevalet
GB2119645B (en) * 1982-05-11 1985-08-14 Masters Wilkerson Manufacturin Backing for a photo or picture frame
DE3940350A1 (de) * 1988-12-14 1990-06-21 Artec Design Gmbh Kommunikationstafel
US5088678A (en) * 1990-07-25 1992-02-18 Nachum Bitan Multi-station easel
US5152490A (en) * 1991-08-16 1992-10-06 Pierce Companies, Inc. Display easel with self-adjusting paper clamp

Also Published As

Publication number Publication date
DE69430084D1 (de) 2002-04-18
EP0628267A3 (de) 1997-05-21
ATE214245T1 (de) 2002-03-15
EP0628267A2 (de) 1994-12-14
EP1093736A2 (de) 2001-04-25
EP0628267B1 (de) 2002-03-13
EP1093736A3 (de) 2001-08-16
DE60124795D1 (de) 2007-01-11

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