JPS6129332Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a display device that is used for displaying products, etc. and can be operated for a long time with a small amount of drive energy.

[Prior art]

2. Description of the Related Art Conventionally, display devices have been used to attract people's attention by moving products, etc., for advertising and displaying products in store windows and the like.

However, conventional display devices have a structure in which a small DC motor is decelerated and its output shaft directly rotates or swings a movable object, such as a product. Loss increases due to load and bearing friction, etc. For this reason, there is a problem in that the dry cell battery that supplies current to the motor is consumed more, and when the movable object is heavy or when it is desired to operate for a long time, the amount of dry cell battery consumption increases.

Although it is possible to reduce the mechanical loss of the output shaft by making the mechanism more precise, this increases the cost and is not suitable for ordinary display devices.

[Summary of the idea]

The purpose of the present invention is to obtain a display device that operates with a small amount of driving energy due to its simple structure.The movable body is rotatably attached to the front of the board with a support member, and is attached to the back side of the board. The drive source is driven by a rotating shaft of a drive source.

[Example of idea]

The present invention will be explained below using the drawings.

FIG. 1 is a side sectional view of an embodiment of the present invention, and FIG. 2 is a front view. The board 1 has a bottom part 2 bent at an angle of 90 degrees or more, and is installed with the bottom part 2 facing down and slightly tilted rearward. A driving source 4 is attached to the back surface of the substrate 1 at a hole 3 formed in the substantially central portion thereof. Although not shown, this drive source 4 includes a built-in dry cell battery, and is composed of a small DC motor and a reduction gear mechanism. As will be described later, since the required torque is small, both the DC motor and the reduction gear mechanism may be small and for light loads. The rotation of the DC motor is decelerated and output from the rotating shaft 5. This rotating shaft 5 passes through the hole 3 and projects to the front of the substrate 1. A driving body 6 is attached to the tip of the rotating shaft 5.
This drive body 6 is made of a thin metal rod, and includes a collar part 7 for press-fitting into the rotating shaft 5, a drive part 8 bent forward at a right angle at a tip located eccentric to the collar part 7; It has a counterweight part 9 formed on the opposite end side. Therefore, since the center of gravity of the driving body 6 is in the collar portion 7, the driving body 6 can be rotated smoothly and balanced by the rotating shaft 5.

On the other hand, the support member 10, which is made of an elongated plate and formed into a substantially L-shape, is installed approximately parallel to the front of the board 1 at a predetermined distance by attaching the base end 11 to the board 1 with screws or the like. Ru. A support shaft 12 is provided at the tip of the support member 10 and faces rearward, and a movable body 13 is rotatably supported on this support shaft 12. The support shaft 12 is substantially concentric with the rotating shaft 5. This movable body 13 is a product or the like to be displayed, and in this embodiment is a record disc. A portion of the outer periphery of the movable body 13 is cut out in a U-shape to form a driven portion 14 . The drive section 8 is inserted into the driven section 14 and engaged in the rotational direction. Since the movable body 13 is disc-shaped, its center of gravity is at the center, and the support shaft 1 is at this center of gravity.
2, it rotates smoothly even with a weak driving force.

In such a configuration, when the drive body 6 rotates together with the rotating shaft 5, the movable body 13 is rotated by being pushed by the drive unit 8. This rotation provides a sufficient display effect. Appropriate pictures and characters are written on the board 1 as necessary.

Since the movable body 13 is rotatably supported by the support member 10, the rotation shaft 5 of the drive source 4 is connected to the movable body 13.
Since the movable body 13 is simply rotated and the bearing load of the movable body 13 is not directly applied, the driving load is extremely small and the power consumption of the battery is reduced. Therefore, it is possible to operate the display for a long time without replacing the dry batteries.

FIG. 3 is a diagram showing another embodiment of the driven part, in which the driven part 14a is formed in a ring shape and is provided on the back surface of the movable body 13. The driving portion 8 of the driving body 6 is inserted into and engaged with the hole of the driven portion 14a. If this is done, the engaging portion will not be visible from the front.

It should be noted that instead of the U-shaped driven portion of the embodiment shown in FIGS. 1 and 2, a hole may be formed in the peripheral portion of the movable body to serve as the driven portion.

FIG. 4 is a front view of another embodiment, in which the support member 10a is formed in a substantially U-shape and is attached to the substrate 1 at both ends 11a. Although not shown, a support shaft is provided at the center of the support member 10a so as to face rearward. In this example, the support member 10a is more firmly attached to the substrate 1 than in the embodiments shown in FIGS.

Note that since the support member is long and thin and has a small area, it hardly blocks the movable body 13 and does not get in the way when viewed from the front, but it can also be made of a transparent material to make the movable body 13 easier to see.

FIG. 5 is a side sectional view of another embodiment, and FIG. 6 is a front view. The support member 10b is made of a transparent material such as acrylic resin, and is formed in the shape of a rectangular cover that covers movable parts such as the movable body 13. Support member 1
0b has a support shaft 12a provided in the center and is attached to the substrate 1 at the peripheral part 11b. The rest of the structure and operation are the same as in the previous embodiment. The support member may be formed into a circular shape according to the shape of the movable body 13. According to this embodiment, since a person does not touch the movable body 13 with his or her hands, there is no chance of the movable body 13 being tampered with.

FIG. 7 is a side view of a timepiece movement 4a that can be used as a driving source. Although the rotational speed of the movable body does not require precision, it is suitable as a drive source because rotational driving force can be obtained with a small amount of electric power, and since it is mass-produced, it can be obtained at a low price. In this case, the second hand shaft 5a is used as the rotation shaft.
The hour hand shaft 15 and the minute hand shaft 16 are not used and may be removed.

FIG. 8 is a rear view of the movable body 13 in another embodiment. The driven portion 14b is formed to have a long hole, and this long hole is arranged to extend in the radial direction with respect to the center hole 17 of the movable body 13. The rotating shaft 5, the driving body 6, and the driving unit 8 are shown in order to understand the relative positional relationship with the movable body 13, and the rotating shaft 5 is provided at an eccentric position with respect to the center of rotation of the movable body 13. . When the rotating shaft 5 rotates, the drive unit 8 draws a circular locus as shown by the dotted line. Since the driving portion 8 is engaged with the elongated hole of the driven portion 14b, the movable body 13 does not rotate but swings within the range of angle θ. With a simple structure, the rotational motion of the driving body 6 can be converted into the swinging motion of the movable body 13. By swinging the movable body 13, a display effect different from rotation can be produced.

In the above embodiments, the movable body is described as having a disk shape, but the movable body is not limited to this.

[Effect of idea]

As described above, according to the display device of the present invention, the movable body is rotatably supported by the support member arranged at a predetermined interval in front of the board, and the rotation shaft of the drive source provided on the back side of the board is directed forward. Make it stand out,
Since the rotation of the rotary shaft is transmitted to the movable body via the drive body, the rotary shaft does not need to support the movable body and can simply rotate the movable body, which reduces the driving load and saves drive energy. It becomes possible to significantly reduce the size of the battery, and when using a battery, the battery replacement period can be extended, and handling becomes easier.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of one embodiment of the present invention, Fig. 2 is a front view thereof, Fig. 3 is a sectional view of another embodiment of the driven part, and Fig. 4 is a front view of another embodiment. , FIG. 5 is a side sectional view of another embodiment, FIG. 6 is a front view thereof, FIG. 7 is a side view of another embodiment of the drive source, and FIG. 8 is a rear view of the movable body of another embodiment. It is a diagram. 1... Board, 4... Drive source, 5... Rotating shaft, 6
...driver, 8...driver, 10...support member,
12... Support shaft, 13... Movable body, 14... Driven part.

Claims (1)

[Scope of utility model registration request] A drive source that has a rotatably protruding rotating shaft in front of the board and is attached to the back side of the board, and a driving body that has a driving part that is formed at an eccentric position with respect to the rotating shaft and is attached to the rotating shaft. a support member provided at a predetermined interval in front of the board; a movable body disposed in front of the drive body and behind the support member and rotatably attached to the support member; A display device comprising a driven part formed to engage with a movable body and provided on a movable body, the movable body moving on a substrate.