WO1999003374A1

WO1999003374A1 - Multipurpose lectern

Info

Publication number: WO1999003374A1
Application number: PCT/FR1998/001493
Authority: WO
Inventors: Werner Matzdorff
Original assignee: Werner Matzdorff
Priority date: 1997-07-15
Filing date: 1998-07-09
Publication date: 1999-01-28
Also published as: FR2766069A1; EP0932350B1; DE69808039T2; FR2766069B1; EP0932350A1; CA2266127A1; DE69808039D1

Abstract

The invention concerns an improved lectern for presenting bound books, consisting in a device for receiving the open book with maximum security for its cover and optimal reading comfort. It consists of two plates (1) with a ledge (2) fixed by clamps (3) to pivoting pins (4). Said pins (4) are fixed on a crosspiece (5) whereof the upper profile constitutes a stop for the inclination (6) of the plates and houses springs (7) balancing said plates, a device (C) for extending the crosspiece (5). Said crosspiece (5) is fixed to lateral legs (8) by a system such as, for example, perforations and bolts (9) for varying the lectern inclination from a horizontal plane to a quasi-vertical plane. The legs (8) comprise recesses (10) for receiving a mobile crosspiece (11) or console (12), fixed on either a central (13) or lateral (14) column. In the latter case, the height is adjusted by means of a rack (15) or a clamp assembly (16). To ensure a proper limit stop for the edge (0) of the book pages on the plate ledge (2), the usual slight extra width of the cover (17) is compensated by mobile inserts (18) maintained above said extra width (17) by a fold-up forming a corner angle piece.

Description

UNIVERSAL LUTRIN

DESCRIPTION - 1 "

The present invention relates to an elaborate lectern device for reading, examining, exposing books of the most varied formats and thicknesses ensuring optimum comfort for the user in the best conditions for the works. The lectern is traditionally designed as a simple continuous support plane with rim forming a stop, the two faces of the cover being in continuity on both sides of the back, the excess thickness of the latter due to its rigidity causing a bulging variable ^of in- seems. The back of the book, which is the most usable part of it, is constantly in demand. The device according to the invention overcomes these drawbacks.

Lectern device for presenting open books allowing optimization of the position of their cover, back and back cover in variable planes, ensuring good planimetry of the exposed pages, characterized in that it comprises two trays with flange front to receive the cover and the back cover of the book, each of the trays with any holding brackets pivoting on a dorsal axis, the spacing between them ensuring free play on the back of the book, the two axes being integral with a crosspiece orientable, the device being supplemented by tilting stops of the plates and springs ensuring their balancing.

Lectern device characterized in that the crosspiece is shaped so that its upper profile limits the rotation of the plates. Device in that on the crosspiece - or, according to a variant not drawn, on the dorsal axes - are fixed springs for balancing the plates.

Device according to which the ends of the crosspiece are subjected by an adjustment and blocking system to legs. the lectern can thus be oriented from horizontal to almost vertical.

Device characterized by legs allowing, by means of an appropriate reservation, the adaptation of a profile forming a smooth or console for fixing on a central or lateral support with an altitude adjustment system by rack or bracket. Arrangement not drawn in that the stirrups of the plates can comprise several positions for fixing the back axes allowing the spacing of the Device with regard to the adaptation to the supports of a lighting system of the work arranged on the lectern.

Device for ensuring a correct abutment of the edge of the book on the edge of the trays by movable plates also forming an elevation, maintained by a return in angle iron above the usual overhang formed by the cover edge of the book.

Device characterized in that the cross-member consists of two parts connected by a sliding device.

Device characterized in that the balancing spring is with a leaf resting on the two dorsal axes and formed so as to leave free play on the back of the book.

The accompanying drawings illustrate the invention Plate 1/3 Figure 1 cross-section of the basic principle Figure 2 cross-section along the basic principle

Plate 2/3 Figure 3 cross section through a form of realization of the cross bar Figure 4 cross section showing a spring arrangement Figure 5 cross section showing a tilting device of the lectern

Plate 3/3 Figure 6 cross section showing a notch for the fitting of a support device Figure 7 front view of the assembly Figure 8 section of a stop block for the edge of the paper

Claims

1) Device forming lectern for presenting open books (o) by allowing optimization of the position of their cover, back and cover spine in variable planes, ensuring good planimetry of the exposed pages, characterized in ^that it comprises two trays (1) with front edge (2) to receive the cover and the back cover of the book (o), each of the trays has any holding brackets (3) pivoting on a back axis (4 ) the spacing between them ensuring free play on the back of the book, the two axes being integral with an adjustable cross-member (5), the device being completed by tilting stops (B) of the plates (1) and springs (R ) ensuring their balancing.

2) lectern device according to claim 1 characterized in that the crosspiece (5) is shaped so that its upper profile (6) limits the rotation of the plates. 3) Device according to the preceding claim characterized in that on the crosspiece (5) - or, according to a variant not drawn. on the back axes - balancing springs (7) are fixed to the plates

(1).

4) Device according to claims 1 and 2, characterized in that the ends of the crosspiece (5) are subject by an adjustment and locking system (9) to legs (8) the lectern can thus be oriented horizontally almost vertical.

5) Device according to claim 4, characterized by legs (8) allowing by an appropriate reservation (10) the adaptation of a profile forming a smooth (11) or console (12) for fixing on a central support (13 ) or lateral (14) with height adjustment system by rack (15) or stirrup (16).

6) Device according to claim 1, characterized by movable plates (18) also forming enhances maintained by a return angle above the usual overhang that forms the cover edge (17) of the book. to ensure correct abutment of the edge of the book (0) on the edge (2) of the plates (1). 7) Device according to claim 1 characterized in that the crosspiece (5) consists of two parts connected by a device forming a slide (c)

8) Device according to claim 1 characterized in that the balancing spring (R) is constituted by a blade bearing on the two back axes (4) and formed so as to leave free play on the back of the book (O)

9) device according to claim 4 by a device specifically adapted on the legs (8) of a lighting fixture support, which can be symmetrical to the adjustment and locking system (9) of the lectern.

10) Device according to claim 1 characterized in that the holding brackets (3) of the plates (1) may include several arrangements for fixing the back axes (4) allowing the spacing of the plates (1) to be varied.