摘要:
Disclosed is a drawer fixing mechanism for fixing a drawer to a desk without using screws and rivets, so that it prevents the drawer from being deformed, shifted or separated from the desk by impact applied to the desk. The fixing mechanism comprises a fixing member outwardly extending along upper edges of a drawer and having insertion holes corresponding to the through holes and an insertion groove at its bottom, an intermediate frame combined with a stand, and bots and nuts for assembling elements of the desk. The intermediate frame has a plurality of connection holes formed to correspond to the insertion holes. The bolts are inserted into the through holes of an upper panel, the insertion holes of the fixing member combined with the drawer, and the connection holes of the intermediate frame in order, and the nuts are combined with the respective bolts at the bottom of the intermediate frame.
摘要:
The invention relates to articles of educational furniture and can be used for organized learning. The essence of the invention is that in a tiltable worktop connected to a supporting framework by a hinged joint, the hinged joint between the worktop and the supporting framework is formed via two rotatable surfaces of different widths. The aim of the invention is to provide a worktop for writing tables and study desks which can be tilted and moved by means of a single action. The structure of the worktop is illustrated in the drawings. Figure 1 shows a side view with no tilt of the worktop; figure 2 shows a side view with the worktop tilted; and figure 3 shows a front view with the worktop tilted. The structure comprises: a worktop (1) ( figures 1 , 2 , 3 ); a hinged joint (2); a supporting framework (3); a rotatable surface (4); a rotatable surface (5); a limit stop (6); and a rotatable handle (7). When the handle (8) ( figure 1 ) is rotated, the worktop (1), which is connected to the supporting framework (3) via the rotatable surfaces (4, 5), moves with the aid of the hinged joints (2) towards the seated person and comes to rest on the limit stops (6, 7) ( figures 2 , 3 ). Since the rotatable surfaces (4, 5) are of different widths, the angle of incline of the worktop to the horizontal changes during rotation. The technical result of the proposed study desk worktop is that, by a single movement of the handle, the worktop is transferred from a horizontal position into a tilted position while the edge of the worktop is brought closer to the student.
摘要:
Demonstrationsarbeitstisch, insbesondere Lehrertisch für einen Unterrichtsraum mit einer Spritzschutzplatte, die an der Rückseite des Tisches vorgesehen ist, wobei die Spritzschutzplatte (3) als Rückprojektionsplatte ausgebildet ist und Einrichtungen (5, 6, 7) zum Projizieren von Bildern auf die als Rückprojektionsplatte ausgebildete Spritzschutzplatte (3) vorgesehen sind.
摘要:
A classroom desk, the desk having an article pad (14) coupled to upper sides of props (12,12') and supports (20), an upper plate (16) attached to an upper side of the article pad (14) and a fixing unit for fixing the article pad (14) and the upper plate (16) to the props (12,12'), wherein the fixing unit comprises: a first fixing pin (28) for penetrating an upper end of the props (12,12') and periphery of the article pad (14) to be fitted into the upper plate (16); and a second fixing pin (30) for being fitted into an upper side of the upper plate (16) to be threaded to the first fixing pin (28), such that the upper plate (16) can be simply and swiftly replaced and can be reversely used without being scarred on the article pad (14) and a bottom surface of the upper plate while the fixing unit for fixing the upper plate (16) can be prevented from being unscrewed and there leave no traces of the upper plate (16) having been secured, thereby reducing waste of material cost and upkeep cost, and beautifying an exterior look of the classroom desk.
摘要:
A network of electronic devices such as computers (50) and/or calculators uses low power communication to transmit wireless signals through a distributed antenna system (40). The distributed antenna system (40) may be formed in conjunction with ceiling or floor tiles or modular office components (44 and 46) or student desks. The distributed antenna system (40) reduces the effective distance between a transmitting and receiving device to a nominal distance.