FR2737934A1 - ROTATING TRAY FOR ADVERTISING DISPLAY - Google Patents

Abstract

Turntable for advertising presentation. The invention relates to an apparatus, the essential characteristics of which are: high stability and high load capacity. It only has a small number of elements leading to a modest cost price. Its continuous or fractional rotation system is very simple resulting from the use of a permanent magnet motor (29) controlled by a lug (30) which allows the direction of travel to be reversed. There are many outlets for this type of device which is used to present all kinds of objects in windows or exhibitions. The robustness of the apparatus described above also allows the presentation of pyramids of bottles and that of mannequins in feet in clothing stores.

Description

Argument: The present invention relates to a turntable for the

  advertising presentation. It can be programmed to rotate continuously in both directions or in fractional rotation. A robust and very stable construction allows the presentation of heavy and high loads. Previous art: Rotating trays have been built for a long time for advertising purposes. Some advanced models operate in fractional rotation. They are equipped with special motors controlled by an electronic control. They are of a high cost which limits their diffusion. We know

  also other simpler models that only work in continuous rotation.

  Their light construction supports only light loads and their stability is precarious.

Epongr

  The invention proposes to eliminate the disadvantages described above.

  above the rotating plates of the prior art by offering users a simple, robust and very stable device with only a reduced number of elements and therefore

modest cost price.

  According to the invention, preferably four symmetrical branches comprise a rectilinear part followed by a "V" -shaped profile ending in a small rectilinear part. as an extension of the first. Each branch is lodged by its longest end, pierced by a hole, between two stamped washers whose bosses form when they are joined by their intereneur face a sort of sheath. Bolts through the washers and the branches bind the assembly that becomes very ngid. By its base, this assembly represents the four feet of the apparatus. On its upper part, it receives the plate provided with a central guide shaft whose free portion is housed in the center of the washers through a shoulder ring. Through the periphery, the plate rests on ball bearings wedged at the end of the small rectilinear part of each branch. This arrangement makes that the plate, well guided in its center and circulating on a path of ball bearings,

  turns without resistance, which allows the use of a low power engine.

  According to another characteristic of the invention, the motor chosen for driving the plate is of the permanent magnet type, very robust and whose particularity is to change the direction of rotor rotation blocked. The invention uses this feature to protect the motor against overloads caused by stopping the

tray without disconnecting the motor.

  According to another characteristic of the invention, the automatic reversal of the direction of rotation of the motor is used to generate a fractional rotation of the plate. The means used are the following: -2- A skewer lug is fixed under the tray following a triectoire which passes through the middle of the "V" branches. A stop placed on the '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' ' Immediately, he leaves again

reverse.

  By this action we obtain a fractional rotation in both directions. The plateau displacement value can be programmed. With a stop placed on a single branch, we obtain a fraction of rotation equal to 270, or three quarters of a revolution. With two stops placed on two opposite branches, we obtain a fraction of rotation equal to 10i ', a half-turn. With two stops placed on two branches a quarter, we obtain a fraction of rotation equal to 9C 'is a quarter turn. In

  suppnmant the stops, we obtain a continuous rotation of the plateau.

  According to another characteristic of the invention, the integral elastic pin of the plate deforms and stores energy in one direction by touching the stop. It then restores this energy in the opposite direction when the plate starts in the opposite direction, which helps the engine in its shifts. The elasticity of the ergot is also used to cushion and make softer and quieter

walk of the plateau.

  Figs: Fig. 1 is a perspective view of the base of the apparatus

on a horizontal plane.

  Fig. 2 is a view of the plate with the central axis and the flexible pin.

  Fig. 3 is a view of the complete apparatus in working order.

  Detailed description of an embodiment:

  in FIG. 1 appear four identical branches 1, 2, 3, 4 comprising a long rectilinear portion 5 extended by a deformation in the form of

  "V" 6, followed by a small straight portion 7 in the extension of the first.

  Each branch supports at the end of the small portion rectlijgne 7 a ball bearing 8, wedge at a certain distance from the end. By its other end, each branch is housed between two identical washers 9 and 10 whose bosses 11 form when they are joined by their inner side a sheath. Four bolts 12, 13, 14, 15, passing through the washers and the branches are tightened by nuts. A shoulder ring 16 is housed inside the washers. It serves as a guide to the integral axis of the plateau. A calliper 17, in the form of an inverted VW pierced with a hole 18 at its top, has at its base two upright portions 19 and 20, each also pierced with a hole for fastening the motor 29. The stirrup 17 is fastened by its summit under one of

  four bolts 13, ensuring the connection of the branches in the washers.

  In FIG. 2, we see the plate 21 from below with in its center the guide axis 22 composed of a cylindrical portion and a crimped washer pierced with equidistant threaded holes 23, 24, 25 in which are housed three screws 26, 27, 28 crossing the plateau. The small free part of the axis above the washer engages in the central hole of the plate and is flush with the upper part. The screws block the axis on the board. By its longest part, the axis is housed through the shoulder ring 16 in the motor drive 29. A lug 30, flexible material is screwed from below into the plate 21 along a path passing in the center of the " V "b branches. Fig. 3 shows the tray placed on the device in working order

  with the stop 31 stopping the flexible pin.

L1 C - 2737934

Claims (4)

  1) Rotating turntable for the public presentation characterized in that the plateau guided in its center rests on its penance on ball bearings.   2) The turntable according to claim 1 characterized in that the use of ball bearings under the plate reduces friction and   allows the use of a small permanent magnet motor.   3) turntable according to claim 2 characterized in that the reversal of the engine running is used to create the rotation split from the board.   4) Turntable according to claim 3 characterized in that a solder pin of the plate controls the reversals of the step of the engine.   ) Turntable according to claim 4, characterized in that the elective property of the skew lug helps the reversal of the sense of rotation of pltmeu.