JPS6046434B2 - Improvement of display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device formed by a series of discrete narrow rectangular surfaces arranged in substantially diametrical relationship along each longitudinal edge; The present invention relates to a display device in which a surface is movable to and from a position forming part of said display surface.

An example of this type of display device is one that includes a series of Ξ-angle cross-section members that are mounted side by side and can be rotated about their respective longitudinal axes and moved in increments of 1200; Each surface is thus periodically moved into display surface position to align with the corresponding surface of the other triangular section member so that a message or advertisement can be placed across the display surface therebetween.

Other types of display surfaces consist of individual slate-like elements, each carried in series on a spaced drive chain.

The number of different messages or advertisements that can be displayed is equal to the number of slates in each series. In both types of devices mentioned above, the parts forming the replaceable indicators are housed in a cabinet together with their drive.

Both types of devices described above have certain drawbacks.

One of the requirements for a satisfactory display is that there must be an initial movement that draws the eye to the display before it begins displaying a message or advertisement. A device with a rotating triangular cross section can only display three messages or advertisements.

Moreover, when moving from one display position to the next display position, the movement is difficult to notice. Furthermore, devices in which the slate is carried on chains are better in these respects, but the large quantity of chains required makes them expensive, and the depth between the front and back of the cavity makes their use difficult. The disadvantage is that it is limited to areas with great depth. It is therefore an object of the invention to provide a display device which is capable of providing at least four and preferably six display surfaces, while having a smaller depth than the chain-borne slate type mentioned above.

According to the present invention, a plurality of rotating carriers are provided which are mounted to rotate about respective axes that are parallel to each other,
A plurality of supports are attached to each carrier so as to rotate about second axes that are parallel to the rotational axis of the carrier and are located at equal angular intervals around the rotational axis, and The devices each carry an elongated display slate having a longitudinal axis substantially coinciding with said second axis of rotation thereof, and said carriers and supports are arranged so that each slate on each carrier is aligned with the other. A display device is provided which forms a substantially continuous display surface with one slate of each carrier.

With this configuration, each slate can be rotated to show both sides of the slate, and movement of the slate about the axis of the carrier can keep other slates from moving toward the display surface. Two slates on one carrier provide four different display surfaces, and three slates on one carrier provide six display surfaces. The slates are preferably mounted for rotation about their respective center lines, with rotation of the slates preferably occurring during movement from the display surface position. This is because the combination of rotation and translation of the slate is more eye-catching than translation alone. One configuration according to the invention comprises a series of rotatable carriers mounted on parallel vertical axes, the spacing between these axes being equal to the adjusted width or nominal width of the modules of the slate; Each carrier carries three slates so that they can rotate about their longitudinal centerlines, and the rotation axis of the slates is an equilateral triangle whose sides are equal to half the module width of the slates. It is arranged symmetrically about the axis of the carrier at the apex.

A device is provided for rotating the carrier in 1200 increments, with indicating periods during which the slate is stopped between successive rotational movements.

And during each angular movement of the carrier, the slate moving from the display position is rotated 180 degrees about its own axis, so that when the slate next comes to the display position, its reverse side is displayed. This rotation of sleigh 1 is eye-catching, and the other two slates mounted on the same carrier also move along with said rotation, as will be explained below. In this configuration, the nominal or module width of the slates is approximately 2.4 mm (3132 inches) larger than the actual width, but the spacing of the slates in the display position is virtually unproblematic. On the contrary, it is necessary to provide such a distance to avoid collisions. When one slate of each set is in the display position, the other slates carried by the same carrier are Positioned as the sides of a triangle relative to one slate; in other configurations, the slates are mounted in a similar triangular arrangement, but the supports are guided radially away from the axis of the carrier. so that one slate can be rotated without or with only a slight movement of the other two slates.

Next, the present invention will be explained in detail with reference to the drawings.

In FIG. 1, the display surface of the display device consists of aligned surfaces A of slates a, only two of which are shown in FIGS. 1 to 18. A set of slates (plate-shaped members) A, c, and e are mounted on one carrier. Slates A, c, and e are display surfaces A, B; C, D; E, F, respectively.
has. A set of slates A, c, e is mounted on a carrier mounted for rotation about an axis g. The carrier is rotated by 1200 degrees around the axis g, for which purpose various known drive devices can be used. Slates A, c, e are axes J, k, I
A drive is provided for rotating the slate about these axes to provide the angular movement shown in FIGS. 1-8. An example of a drive suitable for this purpose is shown in FIG. 19 and will be explained later. The white and black semicircles shown on slate a are merely to indicate the positions of both sides of the slate. 1-18, the movement of the slates A, c, e during the rotation of the carrier 120 is shown.

As will be seen later, the carrier rotates clockwise and during its first 900 revolutions slate a becomes slate C, e.
1800 rotations relative to the surface B, thus moving surface B to an outwardly facing position. As shown in Figures 1-6, during the first 300 clockwise rotations of the carrier, slate a rotates 600 counterclockwise about its axis, while slates C and e Rotate counterclockwise 300 times. At this point, slate a is perpendicular to slate e as shown in FIG. In order to avoid collisions of the slates A, e, it is necessary to reverse the rotation of the slate e about the axis 1, and to rotate the slates C, e clockwise by 304° while the carrier rotates from 300° to 48°. It must be rotated back to the initial angular position shown in FIG. To allow slate a to reach the position shown in Figure 11, slate c
It is necessary to rotate the slate 30 degrees clockwise, and the slate a
passes through axis k of slate c, slate a is slate c
is perpendicular to To avoid collision between slates c and e, slate e is rotated 300 times clockwise within the same period. While the carrier advances from 600 degrees (Figure 11) to 90 degrees (Figure 16), slate a makes a final 600 rotations counterclockwise, and slates C and e rotate 30 times counterclockwise. to return all three slates to their initial relative positions, with slate B facing outward.

During the final movement of the carrier from 900 to 120 tons, the slates A, c, e remain stationary relative to their respective axes.
At the end of the 1200 movements of the carrier, all surfaces E are aligned at the display surface and the carrier is held in that position for a predetermined display period.

As can be understood from the above, all six slate surfaces are periodically moved to the display position.

As can be seen from FIGS. 1 to 16, the tip of the left edge of slate a is substantially stationary between the positions of FIGS. gives the visual impression of rotation around the edge.

During the initial movement of the carrier, the exposed area of surface F gradually increases, but this situation is abruptly reversed between FIGS. 8 and 10.

After that, the visible area of surface E gradually increases. Slate A, c
, e need not be sold integrally with the device of the invention when it is sold; each slate is simply made up of two slates held back to back in the top and bottom clamps (these constitute the supports). It's fine if it's just a piece of paper. FIG. 19 shows a device for driving slates A, c, and e (as mentioned above, these do not need to be unique to the display device, but may be paper pieces cut out from illustrations).

In Figure 19, a drive for three slate stations is shown, but any number of such stations may be provided between the two end stations. In each slate station, a drive spindle 1 is rotatably mounted on a bearing 2 carried by a frame member 3.

The spindle 1 has a collar 4 to prevent downward movement. A slate spindle carrier 5 is attached to the top end of each drive spindle 1 and carries three slate spindles 6 at 1200 spacing. Each spindle 6
has a slate support 7 at its top end, the spindles 6 having associated spindles 6 spaced apart from each other by 180 mm.
It is rotated within the bearing 8 by engaging with the upper and lower cam followers 9 and 10 attached to the bearing. Cam follower 9 engages upper cam 1 and cam follower 10 engages lower cam 12. The spindle 6 vibrates during rotation of the spindle 1 by engaging the cam followers 11, 12. The cams 11 and 12 are shown in FIGS.
It is shaped to vibrate the slate according to the diagram. All spindles 1 carry the same crank arm 15 with a crank pin 16 in rotational engagement with a coupling rod 17.

Thus, in a device having more than four stations, the drive spindles 1 of the additional stations are similarly spaced along and connected to the connecting rod of a suitable length. two end spindle 1
carry sprockets 18, these sprockets are interconnected by a drive chain (not shown), so that all spindles 1 are rotated synchronously. The illustrated drive is also provided at the top of the cabinet (but reversed) to drive the top end of the slate.

The spindles 1 above and below one end of the display have spur gears (not shown) for drive input from an electric motor.

The electric motor is controlled by a control device to rotate the Spisidore 1 by 120 degrees and then to stop for a predetermined period of time until the next rotation of 120 degrees.

[Brief explanation of the drawing]

FIGS. 1 to 18 are diagrams schematically showing a series of movements of the slate in one embodiment of the present invention, and FIG. 19 is a diagram showing a device for driving the slate shown in FIGS. 1 to 18. In the figure, A, c, and e are slates, 5 is a carrier, and 7 is a support.

Claims (1)

[Scope of Claims] 1. A plurality of rotating carriers mounted to rotate about respective axes that are parallel to each other, each carrier having a plurality of rotating carriers that are parallel to the axis of rotation and that are equal in circumference to the axis of rotation. a plurality of supports are mounted for rotation about second axes located at angularly spaced intervals, each support carrying a device having two elongated display surfaces disposed back-to-back; and each longitudinal axis thereof substantially coincides with said second axis, which is the axis of rotation of the support, and said arrangement of said supports and supports is such that each display surface on each support is in direct alignment with the other. A display surface is formed that is substantially continuous with the display surface of the carrier, and the carrier is adapted to move each support on the carrier in sequence to a position where the display surface becomes the display position. In a display device comprising a motor device coupled for uniform stepwise rotation, during the rotation phase of the carrier the support extends 180° from the display position to the second axis. A display device, characterized in that it comprises a device for rotating the support associated with each support so as to be moved about the support opposite to the direction of rotation of the support. 2 each carrier 5 has three said supports and is adapted to be rotated about its axis in steps of 120°, the supports being rotated through 180° between such 120° rotation steps; Each of the other two supports 7 is moved from its second A device 6 that vibrates so as to rotate back and forth around the axis of
, 9, 10, 11, and 12 are provided.