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Device for assembling the framework of a temporary exhibition stand; characterized in that the uprights (8) comprise at their top ends longitudinal slots (83) situated in the bottom of dovetailed grooves (81), the said slots (83) terminating at the top end of the uprights which is adjacent the end o

Device for assembling the framework of a temporary exhibition stand; characterized in that the uprights (8) comprise at their top ends longitudinal slots (83) situated in the bottom of dovetailed grooves (81), the said slots (83) terminating at the top end of the uprights which is adjacent the end of the top cross-member which is to be assembled and in that a hub (19) is disposed in these slots, the hub comprising at least one heel (22) disposed transversely in a dovetailed groove (81), at least one ball (29) maintained in an orifice in the hub in such a way as to project into the dovetailed groove above the heel and also comprising a rod (25) sliding in the hub against the action of a spring (28), the said rod being provided with a notch (26) and being capable of assuming two positions, in one of which the notch (26) in the rod (25) is situated at the level of the ball (29) and allows it to be released from the groove to allow passage of the bolt (7), while in the other position, the rod (25) locks the ball (29) in a position in which it projects into the groove (81) maintaining the bolt either in a high position, above the ball, or in a low position, between the heel and the ball.

대표청구항 ▼

Framework of a temporary exhibition stand, said framework comprising vertical uprights (2) each provided with two ends, top and bottom horizontal cross members (l1, l2) each provided with two ends, said horizontal cross members being provided with a longitudinal groove (10, 11) receiving and maintai

Framework of a temporary exhibition stand, said framework comprising vertical uprights (2) each provided with two ends, top and bottom horizontal cross members (l1, l2) each provided with two ends, said horizontal cross members being provided with a longitudinal groove (10, 11) receiving and maintaining panels (5) forming stand partitions, the vertical uprights comprising dovetailed longitudinal grooves (81) enclosing a central passage (82), each of said dovetailed grooves being adapted to receive a bolts (7) provided at the end of each cross member in order to assemble said cross members with the uprights, each upright (8) comprising at a top end thereof longitudinal slots (83) situated in the dovetailed grooves (81), the slots (83) terminating at the top end of the upright adjacent to the end of the top cross member which is to be assembled, a hub (19) disposed in said last-mentioned slots, said hub having at least one heel (22) disposed transversely in one of said dovetailed grooves (81), at least one ball (29) maintained in an orifice in the hub and projecting into the dovetailed groove above said heel, a rod (25) sliding in said hub against the action of a spring (28), said rod being provided with a notch (26) and being adapted to assume two positions, in one of which the notch (26) on the rod (25) is situated in front of the ball (29) and permits said ball to be moved out of said last-mentioned dovetailed groove to allow passage of the bolt (7), while in the other position the rod (25) locks said ball (29) so that said ball projects into said last-mentioned dovetailed groove (81) and maintains the bolt either in a raised position above the ball or in a low position between the heel and the ball.