EP0145018A2 - Tableau noir - Google Patents

Tableau noir Download PDF

Info

Publication number
EP0145018A2
EP0145018A2 EP84115224A EP84115224A EP0145018A2 EP 0145018 A2 EP0145018 A2 EP 0145018A2 EP 84115224 A EP84115224 A EP 84115224A EP 84115224 A EP84115224 A EP 84115224A EP 0145018 A2 EP0145018 A2 EP 0145018A2
Authority
EP
European Patent Office
Prior art keywords
guide rails
board according
following
demonstration board
projection surface
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.)
Granted
Application number
EP84115224A
Other languages
German (de)
English (en)
Other versions
EP0145018A3 (en
EP0145018B1 (fr
Inventor
Erich Neuland
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.)
NEULAND GMBH, KOMMUNIKATIONSSYSTEME
Original Assignee
Neuland Kommunikationssysteme GmbH
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 Neuland Kommunikationssysteme GmbH filed Critical Neuland Kommunikationssysteme GmbH
Priority to AT84115224T priority Critical patent/ATE37775T1/de
Publication of EP0145018A2 publication Critical patent/EP0145018A2/fr
Publication of EP0145018A3 publication Critical patent/EP0145018A3/de
Application granted granted Critical
Publication of EP0145018B1 publication Critical patent/EP0145018B1/fr
Expired 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
    • A47B97/001—Wall mounting or suspension arrangements for blackboards or the like

Definitions

  • the invention relates to a demonstration board with at least one horizontally displaceable board.
  • the invention is based on the object of designing a demonstration board with at least one horizontally displaceable board plate in such a way that as many visualization areas as possible are available with the smallest possible space requirement for the demonstration board.
  • the board plate is slidably supported by a lower guide rail and is secured by an upper guide rail against tipping from its vertical position, and that the upper guide rail comprises the board plate with such play in the vertical direction upwards it is possible to lift the panel out of the lower guide rail and reinsert the panel with its back to the front.
  • both of the slidable slab panels can be used as a visualization surface. With a single sliding board and two fixed board next to each other behind it, you can create four usable visualization areas.
  • An advantageous embodiment of the invention is that a plurality of upper and lower guide rails are arranged in pairs in parallel, in each of which at least one slab plate is slidably seated. Three guide rails in succession have proven to be particularly useful, but it is easily possible to build demonstration boards with up to ten guide rails.
  • the demonstration board according to the invention becomes particularly versatile if a projection surface is arranged between the upper and lower guide rails behind the level of the rearmost guide rails.
  • the guide rails project beyond the projection surface on both sides by at least the width of the panel surfaces.
  • the panel plates can then be pushed over the projection surface either from one or the other side of the projection surface.
  • the construction of the guide rails is particularly simple in construction if they are supported by elbows, which each grip with a horizontal leg through horizontal slots in the guide rails.
  • the demonstration board according to the invention can be attached to a wall particularly easily if the angle pieces are attached to vertically adjustable mounting rails in a height-adjustable manner.
  • the mounting rails can first be fastened in a vertical orientation to the wall by means of dowels and then the angle pieces can be aligned and fastened on these mounting rails.
  • the guide rails are expediently designed as a box profile, a running surface for the plate plate being inserted into the lower guide rails from above. Because these treads are only used in the lower guide rails, there is sufficient play in the upper guide rails in the vertical direction in order to be able to lift the panel plates out of the guide rails. It is also possible to use the same box profile for the frame of the panel plates as for the guide rails, so that the production of the demonstration board is inexpensive overall.
  • the plate plates can be moved particularly easily in the guide rails if, as stated in claim 8, they have rollers and guide rollers.
  • the projector when using the projection surface, the projector is often arranged lower than the projection surface, it is expedient to make the projection surface tiltable.
  • Such a tiltable arrangement is characterized in claim 9. It is characterized by a particularly simple, but convenient and reliable adjustment mechanism.
  • the take-up roll Since the projection surface only has to be pushed forward with a small force in order to get into the desired inclined position, it is sufficient to design the take-up roll to be self-locking by frictional forces in order to hold the projection surface at any inclination against the force of its spring pivoting it.
  • the demonstration board shown in FIG. 1 has an upper guide rail 1 and a lower guide rail 2. On these guide rails 1, 2, board plates 3, 4, 5 are arranged one behind the other on the left side of the demonstration board and board plates 6, 7 on the right side of the demonstration board. 8 also arranged one behind the other.
  • a projection surface 9 is mounted in a stationary manner between the panel plates 3 to 8. This projection surface 9 is as wide as the individual panel plates 3 to 8. It is therefore possible to push each of the three left panel panels 3, 4, 5 or right panel panels 6, 7, 8 in front of this projection surface 9. For this reason, either two visualization areas of the blackboard panels and one projection surface or three visualization areas of the blackboard boards can be seen from the front.
  • a board can be designed, for example, as a pinboard with a felt covering.
  • Another board may be designed as a magnetic board with an enamelled steel surface, and a third board as a writing board.
  • Figure 2 shows in section the three plate plates 3, 4, 5 and shows that these are guided in upper guide rails 1, or 1 ', 1 "and lower guide rails 2, 2' or 2".
  • the guide rails 1, 1 ', 1 "and 2, 2', 2" are arranged in pairs one behind the other, so that the corresponding plate plates 3, 4, 5 can be pushed one behind the other.
  • a horizontal leg lo of an elbow 11 which is attached to a mounting rail 30 adjustable in height.
  • a clamping piece 31 is provided in the mounting rails, which is connected to the angle piece 11 by means of screws 32, 33.
  • the mounting rails 30 in turn are attached to a wall 12. This wall can be a room wall if the demonstration board is to be attached to such a wall.
  • the projection surface 9 already mentioned is shown behind the panel plate 5 in FIG. It is essential for the invention that the individual board plates 3, 4, 5 are lifted out of the guide rails 1, 1 &, 1 ", 2, 2 ', 2" and can be used again with their back to the front. This means that both board surfaces can be used for visualization purposes on all board panels
  • Figure 3 shows the construction of the demonstration board in more detail.
  • a tread 13 is inserted into its box profile from above, which is raised towards the center, and on which rollers 15 of the plate plate 5 which are rotatable about horizontal axes 14 are supported.
  • the plate plates At their upper edges, the plate plates have rotatable axes 16, 17 Guide rollers 18, 19. As can be seen in the upper part of FIG. 3, these guide rollers 18, 19 are supported laterally on the upper guide rail 2.
  • Figure 3 also shows that the upper guide rails 1, 1 ', 1 "and lower guide rails 2, 2', 2" each have horizontal slots, for example 20, 21. Through these slots 2o, 21, the horizontal legs lo of the elbows 11 are guided.
  • the foremost guide rails 1 "or 2" have slots on their rear side only, so that an uninterrupted surface can be seen from the front.
  • the projection surface 9 is tiltably supported on cone tips 22.
  • the projection surface is held by a cable 24. One end of this is attached to the wall 12 at a point 25. It then leads via a deflection point 26 on the rear side of the projection surface 9 down to a take-up roll 27 below the guide rails 2, 2 ', 2 ".
  • the take-up roll can be actuated by means of a crank 28.
  • the take-up roll 27 is so difficult to move by means of a plate spring arrangement 29 that the projection surface 9 remains in any desired position.
  • the cable 24 tightens and pulls the projection surface 9 closer to the wall 12 against the force of the leaf spring 23. If you turn the crank 28 in the opposite direction, the cable 24 loosens, which has the consequence that the leaf spring 23 can push the projection surface 9 further away from the wall 12 and the projection surface 9 therefore tilts forward on the cone tips 22.
  • the projection surface che must largely be brought into a vertical position so that the rearmost plate. 5 or 8 can be pushed in front of this projection surface 9.
  • the take-up reel 27 is mounted in one of the mounting rails 27, which for this purpose extends somewhat further down than the other mounting rails. Furthermore, the cable 24 is guided in this mounting rail.
  • the leaf spring 23 is also advantageously fastened in the mounting rail.

Landscapes

  • Drawing Aids And Blackboards (AREA)
EP84115224A 1983-12-14 1984-12-12 Tableau noir Expired EP0145018B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115224T ATE37775T1 (de) 1983-12-14 1984-12-12 Demonstrationstafel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833345138 DE3345138A1 (de) 1983-12-14 1983-12-14 Demonstrationstafel
DE3345138 1983-12-14

Publications (3)

Publication Number Publication Date
EP0145018A2 true EP0145018A2 (fr) 1985-06-19
EP0145018A3 EP0145018A3 (en) 1986-03-12
EP0145018B1 EP0145018B1 (fr) 1988-10-12

Family

ID=6216863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115224A Expired EP0145018B1 (fr) 1983-12-14 1984-12-12 Tableau noir

Country Status (3)

Country Link
EP (1) EP0145018B1 (fr)
AT (1) ATE37775T1 (fr)
DE (2) DE3345138A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565039A1 (fr) * 1992-04-10 1993-10-13 Hunziker Ag Système de panneaux muraux
EP0588573A2 (fr) * 1992-09-11 1994-03-23 Magiboards Limited Support pour planches
US6328571B1 (en) 1999-06-04 2001-12-11 Bretford Manufacturing Inc. Wall mounted rail system with movable boards
ES2163335A1 (es) * 1997-03-13 2002-01-16 Iglesias Emilia Yustas Dispositivo de corredera para puertas automaticas, telescopicas y de apertura central de especial aplicacion en las puertas del ascensor.
CN103584532A (zh) * 2013-10-08 2014-02-19 长沙洋华机电设备制造有限公司 一种黑板
JP2015101934A (ja) * 2013-11-28 2015-06-04 日学株式会社 スライドボードセット
CN106157741A (zh) * 2016-09-13 2016-11-23 刘翔 一种教学用写字板选择性显示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7677182B2 (en) 2004-05-27 2010-03-16 Steelcase Development Corporation Two person work environment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69988C (de) * JUNGELS, Königlicher Gymnasial-Director, in Grofs - Glogau, Schlesien Lagerung der Tafel in Schultafelgestellen
BE564640A (fr) *
US3363871A (en) * 1965-10-21 1968-01-16 Walter G. Slazik Mount for chalkboard and the like

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB402571A (en) * 1932-09-22 1933-12-07 North Of England School Furnis Improvements in wall blackboards
CH212837A (de) * 1939-07-25 1940-12-31 Suter Jak Wandtafel-Einrichtung für Schulen.
DE2419245A1 (de) * 1974-04-22 1975-11-06 Baars Dieter Dipl Volksw Wandtafel, insbesondere zur verwendung in buerobetrieben
DE2618478C3 (de) * 1976-04-27 1979-01-04 Movitex Gesellschaft Fuer Organisations- Und Informationsmittel Mbh, 5628 Heiligenhaus Darstellungstafel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69988C (de) * JUNGELS, Königlicher Gymnasial-Director, in Grofs - Glogau, Schlesien Lagerung der Tafel in Schultafelgestellen
BE564640A (fr) *
US3363871A (en) * 1965-10-21 1968-01-16 Walter G. Slazik Mount for chalkboard and the like

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0565039A1 (fr) * 1992-04-10 1993-10-13 Hunziker Ag Système de panneaux muraux
CH685913A5 (de) * 1992-04-10 1995-11-15 Hunziker G Ag Wandtafelsystem.
EP0588573A2 (fr) * 1992-09-11 1994-03-23 Magiboards Limited Support pour planches
EP0588573A3 (en) * 1992-09-11 1995-11-02 Magiboards Ltd Board support
ES2163335A1 (es) * 1997-03-13 2002-01-16 Iglesias Emilia Yustas Dispositivo de corredera para puertas automaticas, telescopicas y de apertura central de especial aplicacion en las puertas del ascensor.
US6328571B1 (en) 1999-06-04 2001-12-11 Bretford Manufacturing Inc. Wall mounted rail system with movable boards
CN103584532A (zh) * 2013-10-08 2014-02-19 长沙洋华机电设备制造有限公司 一种黑板
JP2015101934A (ja) * 2013-11-28 2015-06-04 日学株式会社 スライドボードセット
CN106157741A (zh) * 2016-09-13 2016-11-23 刘翔 一种教学用写字板选择性显示装置

Also Published As

Publication number Publication date
ATE37775T1 (de) 1988-10-15
DE3345138A1 (de) 1985-06-27
EP0145018A3 (en) 1986-03-12
EP0145018B1 (fr) 1988-10-12
DE3474504D1 (en) 1988-11-17

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