RU2492529C1 - Information device - Google Patents

Abstract

FIELD: information technology.

SUBSTANCE: information device consists of a rigid frame and several demonstration elements in form of quadrilateral rotary prisms, on the outer surfaces of which there are fragments of graphic information which form whole images on both demonstration surfaces of the information device as a result of synchronous turning of the prisms about their longitudinal axes by the same angle of 90°, 180° or 270°. The faces of the rotary prisms are made from flexible film material attached behind bending-rigid guides. The quadrilateral prisms mounted in close proximity to each other are turned upon simultaneous change in dimensions thereof by moving longitudinal rods along their axes and, as a result, change in angles between the vertical and braces that are pivotally connected to said rods and keep the outer faces of the prisms at a certain distance from each other.

EFFECT: improved operating qualities of the device by reducing the thickness of the information device, enabling demonstration of varying graphic information on both surfaces thereof, and as a result of the absence of extra joints on the demonstration surfaces of the device, which negatively affect perception of the graphic information.

5 cl, 21 dwg

Description

The invention relates to information technology and can be used to demonstrate changing advertising images.

In order to increase the effect of the influence of information images, as well as to reduce the area required for their placement, devices have been distributed that allow cyclically changing the content of billboards. The greatest possibilities in terms of the amount of information provided are electronic imaging systems. At the same time, they have a high cost, which hinders their widespread use. Mechanical image changing systems are cheaper and can be installed as needed without significant cost.

The principle of operation of mechanical image change systems consists in breaking up several information fields into a number of fragments and in demonstrating periodically changing series of fragments. As a result, various images appear on the screen.

The simplest solutions for demonstrating cyclically repeating advertising images [1, 2, 3] are systems consisting of a series of triangular rotary prisms, on the lateral sides of which are fragments of displayed informational messages. The faces of prisms can be made both from film materials [2] and from rigid elements [3]. In the first case, it is possible to place a lighting system (for example, a lamp) inside a rotary prism for work in the dark. In addition to the simplicity of the solution, another advantage of the systems [1, 2, 3] is the compactness of the information board, which does not have a large thickness. However, the disadvantage of these solutions is the ability to demonstrate a changing image from only one side of the shield.

For the possibility of demonstrating the information image on both sides of the billboard, the patent [4] provides two parallel rows of rotary prisms. In the patent [5], flat fragments of the image move along the guides perpendicular to the plane of the shield. Approaching the outer edges of the shield, flat fragments synchronously unfold, demonstrating a solid image. In the patent [6], information carriers are tetrahedral prisms that are moved along guides located in planes parallel to the plane of the shield itself. The main disadvantage of the solutions [4, 5, 6] is not the compactness of the information board due to its increased width.

The solutions [7, 8] use tetrahedral rotary prisms. At the demonstration stage, the images of the prism are aligned in a line in the plane of the shield, in close proximity to each other. This ensures that advertising information is displayed on both sides of the billboard. To change the image, prisms move out of the shield plane and then deploy. In solution [7], all prisms change their position in space: they move forward with even numbers, and backward with odd numbers (with respect to the shield plane). In solution [8], only even prisms move. Compared to solutions [5, 6], solutions [7, 8] are more compact, although the thickness of the shield still exceeds the width of the rotary prism by 2 times (solution [8]) and 3 times (solution [7]). Another disadvantage is the complexity of the design of the shield.

Decisions [9-12] used transformable storage media (modules). When the modules are rotated, their faces line up parallel to the viewing planes [9-11]. Solution [12] is distinguished by the fact that the elements of pivoting tetrahedral prisms are rigid “corners” consisting of two halves of adjacent faces fixedly connected at right angles. When turning prisms, hard “corners” move along complex paths defined by guides. As a result, the relative position of the "corners" becomes more compact, and the rotation of tetrahedral prisms installed in close proximity to each other becomes possible.

Solutions [9-11] have increased overall dimensions, because elements in the course of a turn significantly extend beyond the contours of rotary prisms. In solution [12], there is an additional seam along each face of the rotary prism, which degrades the performance of this information device. In addition, the solutions [9-12] are distinguished by the complexity of the design.

At the same time, the solution [12] is the most compact, which is of great importance for the effective presentation of advertising information. Decision [12] was taken as a PROTOTYPE.

The technical task of the invention is the improvement of the performance of the device, intended for the presentation of graphic information of an advertising nature. This improvement is achieved by reducing the thickness of the information device, the ability to demonstrate variable graphic information on both of its surfaces, and also as a result of the absence of additional seams on the demonstration surfaces of the device that adversely affect the perception of graphic information.

The technical result of the invention is achieved by using demonstration elements in the information device in the form of tetrahedral rotary prisms with fragments of graphic images on the outer surfaces made of flexible film material fixed to flexurally rigid guides installed in the corners of the prisms, held by spacers at a certain distance between each other. When the prisms rotate synchronously around their own longitudinal axes at the same angles of 90 °, 180 ° or 270 °, individual pieces of graphic information form integral images on both demonstration surfaces of the information device. The rotation of tetrahedral prisms installed in close proximity to each other is carried out while changing their dimensions by moving the longitudinal rods along their own axes and, as a result, changing the angles between the vertical and the struts pivotally connected to these rods and holding the outer edges of the prisms on a certain distance between each other.

Demonstration prisms can be rotated and their sizes dynamically changed using a single drive rotating horizontal shafts, which, by means of a crank mechanism, raise and lower longitudinal prism-changing rods. One of the shafts is connected by gears with rotating prisms, with each image changing cycle, the prisms rotate 90 °, and the horizontal shafts rotate 360 °.

To simplify and reduce the cost of construction, the torque from the shaft is directly transmitted to only one prism, which, in turn, is connected by belt or chain transmissions to other prisms.

To reduce the magnitude of the vertical movement of the longitudinal rods during the transformation of the rotary prisms and, as a result, to reduce the height of the proposed information device, as well as to significantly reduce the distances between the faces of the rotary prisms that are at the stage of image demonstration and, as a result, to improve the quality of the displayed images, It is proposed that in each image change cycle, the horizontal shafts would rotate through an angle of 180 °, rather than a full revolution. The directions of rotation in adjacent cycles are opposite, and the cranks mounted on the shafts, at the end of the rotary cycle, occupy strictly horizontal positions, which is controlled by setting the corresponding stops, which disable the drive and change the direction of rotation for the next cycle. This solution allows on each side of the information device to cyclically demonstrate two graphic images from four images printed on rotary prisms.

To cyclically demonstrate all four images on each side of the information device, it is proposed that both horizontal shafts be connected by gears to at least one rotating prism (main). The torque of the prism is transmitted by the first shaft when the shafts rotate in one direction, and by the other shaft when the shafts rotate in the opposite direction. The gears are arranged in such a way that, regardless of the direction of rotation of the shafts, the main prism always rotates in the same direction. The rotation of the remaining prisms is carried out either in a similar way, or with the help of belt or chain transmissions connecting these prisms with the main one.

The proposed technical solution is described by the following graphic materials:

Figure 1 shows the main view of the information device (at the stage of image demonstration).

Figure 2 shows a section 1-1 of figure 1.

Figure 3 shows a view of the information device in the process of transformation.

Figure 4 shows a section 2-2 of figure 3.

Figure 5 shows a schematic diagram of an element 2 (at the stage of image demonstration).

Figure 6 shows a schematic diagram of an element 2 (in the process of transformation).

Figure 7 shows the principal solution of fastening the film material 3 to the guides 7 of the rotary element 2.

On Fig is a schematic diagram of the structures of the information device in the process of transformation (main option).

Fig.9 shows a section 4-4 of Fig.8 (at the stage of image demonstration).

Figure 10 shows a schematic diagram of a lifting device during the transformation of the shield, the main option (section 5-5 of Fig.8).

Figure 11 shows a schematic diagram of a lifting device at the stage of demonstrating the image, the main option.

Figure 12 shows a section 6-6 of figure 11.

On Fig shows the elements 2 in the process of rotation.

On Fig, 16 as an example, graphs illustrating the change in the distance g of Fig.13 depending on the angle of rotation α of the elements 2 (the main option).

On Fig, 17 as an example are graphs illustrating the change in distance g of Fig.13 depending on the angle of rotation α of the elements 2 (option 2). Graphs (FIGS. 15 and 17) are plotted with the same parameters (crank size 24, initial dimensions of elements 2, initial gaps δ between elements 2), and graphs (FIGS. 14 and 16), respectively.

On Fig shows a fragment of the proposed information device (option 2).

In Fig.19 shows a section 7-7 of Fig.18.

In Fig.20 shows a section 8-8 of Fig.18.

In Fig.21 shows a section 9-9 of Fig.18 (cranks 24 are in extreme positions).

The proposed technical solution (figure 1) consists of a rigid frame 1 and a number of demonstration elements (rotary prisms) 2. In the working position (during the demonstration of the image), the cross sections of the elements 2 have a square shape.

Element 2 (figure 5) consists of a film material 3 with printed graphics. The film 3 is fixed to the flexurally rigid guides 7 using one of the known methods, for example, using a pocket device 9 made of a film glued or welded at the seams 10 to the base material 3 (Fig. 7). The guides 7 in cross section may have a different shape. The most appropriate cross-sectional shape of the element 7 is a square.

The guides 7 are pivotally (elements 8) connected to spacers 6, which, in turn, are pivotally (elements 8) attached to the longitudinal rod 4. Cables 5 fasten the resulting structure to the supports.

The work of the proposed information device consists of cyclically repeating steps:

- stage demonstration of the image (figure 1);

- stage of transformation (figure 3).

At the stage of demonstration, the whole image is formed from separate fragments, deposited on the corresponding faces of the elements 2.

In the process of transformation, the elements 2 synchronously rotate around their axes by an angle of 90 °, which leads to a change in image. For the possibility of rotation, the overall dimensions of the elements 2 are reduced (figure 4). This is achieved by pulling the rod 4 along the longitudinal axis of the element 2 by a certain value Δ (Fig.6). As a result, the angles between the spacers 6 and the longitudinal rod 4 are reduced and the guides 7 are closer to the axis of the element 2. The film material, which does not have stiffness in compression and bending, does not interfere with the movement of the guides 7. To restore the shape of the element 2, the rod 4 is returned to its original position . Stretching, the film material 3, helps to align the struts 6 strictly along the diagonals of the cross section of the element 2.

A solution is proposed for the transformation of elements 2 (Fig. 8), ensuring their simultaneous rotation and change in overall dimensions using one drive (not shown conditionally in Fig.).

Cables 5 are fastened with anchors 11 to the upper 12 and lower 13 plates of element 2. Strictly in the center of the plates 12 and 13, holes of diameter d are made along the axes of which pipes 14 and 15 with internal diameters d are attached to the plates. The pipe 14 is fixed to the upper element 17 of the frame 1 using an angular contact double row bearing 16. The pipe 15 freely passes into the hole in the lower element 18 of the frame 1.

At least one pipe 14 is fitted with a spur gear wheel 19 connected by a transmission to element 20. Element 20 consists of a shaft mounted on: an angular contact bearing, spur gear, bevel gear (Fig. 9). Element 20 is attached to element 17.

At least one gear bevel gear 23 is mounted on the shaft 21, which is connected by transmission with the gear of the element 20.

The torque from the drive (not shown conditionally) to one element 2 is transmitted by rotating the shaft 21, mounted on at least two bearings 22. The remaining elements 2 are transmitted torque either in the same way, or by belt or chain gears (in Fig. Conditionally not shown).

The rod 4 is fixed to the longitudinal beam 28 using a double row thrust bearing 29, which allows the rod 4 to rotate freely around its own axis and synchronously move vertically along with the beam 28. The diameter of the rod 4 is smaller than the diameter d of the holes in the plates 12 and 13, and less than the inner diameter pipes 14 and 15. Thus, the rod 4 freely passes through the plates 12, 13 and pipes 14, 15.

To prevent sagging of the cables 5 onto the plate 13, a small load should be installed. To facilitate the return of the spacers 6 to the operational horizontal position, stops 30 are installed on the elements 4. To ensure the stress state of the element 2 during the image demonstration, stops 31 are installed on the elements 4.

Vertical movement of the rod 4 is provided by a system of crank mechanisms (elements 24-27) located on the console parts of the shafts 21 (Fig.10-12). To prevent skewing of the beam 28 due to its rotation relative to the longitudinal axis, two shafts 21 are installed.

The distance g between the demonstration elements 2 depends on the angle of rotation α (Fig.13). A typical graph of g is shown in FIG. At point 34, the spacers 6 are in contact with the stop 30 (Fig. 8), after which the overall dimensions of the element 2 do not change and the distance g decreases.

The graph shows that at the initial stage of rotation (point 32 in Fig. 14) of the elements 2 around their axes, taking into account a decrease in their overall dimensions, the distance g decreases and with an insufficient size of the crank 24 becomes negative (point 33 in Fig. 16), which is not permissible. Thus, it becomes necessary to increase the initial distance δ (Fig.13) between the elements 2, or to increase the length of the crank. The first leads to the "non-integrity" of the image, and the second leads to excessively large vertical movements of element 4 and, as a result, to an increase in the height of the proposed information device.

To eliminate this drawback, bevel gears 23 are mounted on both longitudinal shafts (Fig. 18, 19). The fastening of the wheel 23 with the shaft 21 should ensure that the torque is transmitted to the wheel when the shaft 21 is rotated in only one direction (for example, clockwise) and free pairing (without torque transmission) when the shaft rotates in the opposite direction. The fastening is carried out by one of the known methods, for example, in accordance with FIGS. 19, 20. In this case, the gear 23 and the shaft 21 are coupled using the bearing 35, the gear part 36 of the shaft 21, the wedge elements with springs 37 and the wedge element holders 38. From Fig. 18, 20 it is seen that regardless of the direction of rotation of the 39 shafts 21, the direction of rotation of the element 14, and, as a consequence, the element 2 (not shown conditionally in Fig. 20) remains unchanged. The rotation of 40 elements 2 always in one direction provides a consistent demonstration of all four faces with printed images on each side of the proposed information device.

Both shafts 21 in adjacent cycles rotate by the drive (not shown conditionally) in opposite directions (i.e., both clockwise, and then both shafts counterclockwise). This leads to the rotation of the cranks 24 in the range from 0 to 180 ° and vice versa (Fig.21). The extreme positions of the cranks 24 are limited by the stops 41. On the stops 41, the switches of the direction of rotation of the shafts 21 are installed.

This solution provides a greater minimum gap g (Fig.13) between the elements 2 during the rotation (Fig.15, 17), compared with the option when the cranks 24 make a complete revolution in one cycle (Fig.14, 16).

From the graphs (Fig. 15, 17) it can be seen that at the initial stage of rotation of the elements 2, the distance between them increases (points 32a and 33a), which allows minimizing the distance 5 (Fig. 13), making the seams in the displayed image not noticeable. The absence on the graph (Fig. 17) of the point 34 means the possibility of further reducing the overall size of the elements 2 by increasing the length of the crank 24, in order to increase the distance g.

The advantages of the technical solution proposed in this invention include the following:

- the dynamic nature of the displayed graphic information, which attracts more attention;

- more efficient use of advertising space, as the proposed information device shows variable graphical information on both surfaces;

- saving advertising space, because one information device sequentially displays several information messages;

- more compact dimensions of the proposed information device having a smaller thickness;

- the absence of additional seams on the demonstration surfaces of the information device.

Information sources

1. Pat. 2092907 Russian Federation, G09F 11/02. Demonstration device / V.N. Akkuratov (Russian Federation), 10.10.1997. Application 06/05/1992.

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Claims (5)

1. An information device consisting of a rigid frame and a number of demonstration elements in the form of tetrahedral rotary prisms, on the outer surfaces of which are fragments of graphic information that form integral images on both demonstration surfaces of the information device as a result of synchronous rotation of the prisms around their own longitudinal axes at equal angles 90 °, 180 ° or 270 °, characterized in that the faces of the rotary prisms are made of flexible film material fixed to a flexurally rigid guides, and the rotation of tetrahedral prisms installed in close proximity to each other is carried out while changing their dimensions by moving the longitudinal rods along their own axes and, as a result, changing the angles between the vertical and the struts pivotally connected to these rods and holding outer faces of prisms at a certain distance between each other. 2. The device according to claim 1, characterized in that the rotation of the demonstration prisms and the dynamic change of their sizes are made using one drive rotating horizontal shafts, which, by means of a crank mechanism, raise and lower the longitudinal rods that change the size of the prisms, while as one of the shafts is connected by gears with rotating prisms, while in each cycle of the image change, the prisms rotate 90 °, and the horizontal shafts rotate 360 °. 3. The device according to claim 2, characterized in that one of the shafts is connected by a gear with only one rotatable prism, which, in turn, is connected by belt or chain transmissions to the rest of the prisms. 4. The device according to claim 2 or 3, characterized in that in each image changing cycle the horizontal shafts rotate through an angle of 180 °, while the directions of rotation in the adjacent cycles are opposite, and the cranks mounted on the shafts at the end of the rotary cycle occupy strictly horizontal position, which is controlled by setting the appropriate stops that disable the drive and change the direction of rotation for the next cycle. 5. The device according to claim 4, characterized in that both horizontal shafts are connected by gears to at least one rotatable prism, while the torque of the prism is transmitted by the first shaft when the shafts rotate in one direction, and the other shaft - when the shafts rotate in the opposite direction so that regardless of the direction of rotation of the shafts, the prism always rotates in the same direction.

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