DE3474504D1 - Blackboard - Google Patents
BlackboardInfo
- Publication number
- DE3474504D1 DE3474504D1 DE8484115224T DE3474504T DE3474504D1 DE 3474504 D1 DE3474504 D1 DE 3474504D1 DE 8484115224 T DE8484115224 T DE 8484115224T DE 3474504 T DE3474504 T DE 3474504T DE 3474504 D1 DE3474504 D1 DE 3474504D1
- Authority
- DE
- Germany
- Prior art keywords
- guide rail
- behind
- guide rails
- board
- plane
- 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
Links
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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
1. Blackboard with one or more boards (3 - 8) which can be slid respectively in a tower, horizontal guide rail (2) and which are safeguarded against tilting out of their vertical position by means of an upper guide rail (1), whereby the upper guide rail (1) clasps the board (3 - 8) upwards with such a free travel in vertical direction, that it is possible to lift the board (3 - 8) out of the lower guide rail (2) and to once again use it with its back to the front, and whereby the upper and lower guide rails (1, 1', 1'' ; 2, 2', 2'') are arranged parallel in pairs behind each other if several boards are arranged, characterized in that between the upper and lower guide rail (1, 2) behind the plane of these guide rails (1, 2) or, if several guide rails (1, 1', 1'' ; 2, 2', 2'') are arranged parallel in pairs behind each other, behind the plane of the rearmost guide rails (1, 2) a projection screen (9) is supported so that it can be tilted on its lower edge, pre-stressed to the front above the support by means of a spring (23) and held in a fixed position by means of an adjustable cable (24) which pulls the projection screen (9) backwards above the support.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8484115224T DE3474504D1 (en) | 1983-12-14 | 1984-12-12 | Blackboard |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833345138 DE3345138A1 (en) | 1983-12-14 | 1983-12-14 | DEMONSTRATION BOARD |
DE8484115224T DE3474504D1 (en) | 1983-12-14 | 1984-12-12 | Blackboard |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3474504D1 true DE3474504D1 (en) | 1988-11-17 |
Family
ID=6216863
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833345138 Withdrawn DE3345138A1 (en) | 1983-12-14 | 1983-12-14 | DEMONSTRATION BOARD |
DE8484115224T Expired DE3474504D1 (en) | 1983-12-14 | 1984-12-12 | Blackboard |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833345138 Withdrawn DE3345138A1 (en) | 1983-12-14 | 1983-12-14 | DEMONSTRATION BOARD |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0145018B1 (en) |
AT (1) | ATE37775T1 (en) |
DE (2) | DE3345138A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH685913A5 (en) * | 1992-04-10 | 1995-11-15 | Hunziker G Ag | Blackboard system. |
GB9219219D0 (en) * | 1992-09-11 | 1992-10-28 | Magiboards Ltd | Support apparatus |
ES2163335B1 (en) * | 1997-03-13 | 2003-04-01 | Iglesias Emilia Yustas | SLIDING DEVICE FOR AUTOMATIC, TELESCOPIC AND CENTRAL OPENING DOORS OF SPECIAL APPLICATION IN THE ELEVATOR DOORS. |
US6328571B1 (en) | 1999-06-04 | 2001-12-11 | Bretford Manufacturing Inc. | Wall mounted rail system with movable boards |
US7677182B2 (en) | 2004-05-27 | 2010-03-16 | Steelcase Development Corporation | Two person work environment |
CN103584532A (en) * | 2013-10-08 | 2014-02-19 | 长沙洋华机电设备制造有限公司 | Chalkboard |
JP2015101934A (en) * | 2013-11-28 | 2015-06-04 | 日学株式会社 | Slide board set |
CN106157741A (en) * | 2016-09-13 | 2016-11-23 | 刘翔 | A kind of teaching board selectivity display device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69988C (en) * | JUNGELS, Königlicher Gymnasial-Director, in Grofs - Glogau, Schlesien | Storage of the blackboard in school board racks | ||
BE564640A (en) * | ||||
GB402571A (en) * | 1932-09-22 | 1933-12-07 | North Of England School Furnis | Improvements in wall blackboards |
CH212837A (en) * | 1939-07-25 | 1940-12-31 | Suter Jak | Blackboard furniture for schools. |
US3363871A (en) * | 1965-10-21 | 1968-01-16 | Walter G. Slazik | Mount for chalkboard and the like |
DE2419245A1 (en) * | 1974-04-22 | 1975-11-06 | Baars Dieter Dipl Volksw | WALL BOARD, IN PARTICULAR FOR USE IN OFFICE BUSINESSES |
DE2618478C3 (en) * | 1976-04-27 | 1979-01-04 | Movitex Gesellschaft Fuer Organisations- Und Informationsmittel Mbh, 5628 Heiligenhaus | Display board |
-
1983
- 1983-12-14 DE DE19833345138 patent/DE3345138A1/en not_active Withdrawn
-
1984
- 1984-12-12 DE DE8484115224T patent/DE3474504D1/en not_active Expired
- 1984-12-12 EP EP84115224A patent/EP0145018B1/en not_active Expired
- 1984-12-12 AT AT84115224T patent/ATE37775T1/en active
Also Published As
Publication number | Publication date |
---|---|
DE3345138A1 (en) | 1985-06-27 |
EP0145018A2 (en) | 1985-06-19 |
ATE37775T1 (en) | 1988-10-15 |
EP0145018A3 (en) | 1986-03-12 |
EP0145018B1 (en) | 1988-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |