JPH06318045A - Turning display device - Google Patents

Abstract

PURPOSE:To simplify a structure, to miniaturize it, to reduce a mounting area and to improve productivity by connecting between a fixed base and a display part through a parallel signal cable formed spirally around a vertical axis. CONSTITUTION:The distance between an upper connector 17 and a lower connector 18 is connected using the parallel signal cable 16 formed spirally around the vertical axis. Then, a display unit 5 is housed in the inside of the display part, and a display circuit 4 containing a power source device is housed in the inside of the fixed base respectively. In such a case, this device is assembled so that the cable upper end 16a of the parallel signal cable 16 is projected to the upward outside from an upper surface cover 19a to be connected to the upper connector 17, and on the other hand, the cable lower end 16b is projected to the sideward outside from a part of the cylindrical surface of the lower cover 19b to be connected to the lower connector 18. Thus, the parallel signal cable 16 is capable of being wound and rewound as occasion demands according to the turning motion of the display part in the horizontal direction of left and right.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a connecting cable for connecting a rotatable display device (hereinafter referred to as a rotating display device) composed of a fixed base and a display portion, and particularly to the durability of the connecting cable. And the miniaturization of the wiring structure part.

[0002]

2. Description of the Related Art As shown in FIG. 5, a rotary display device, which is often used in various electronic control devices, has a display unit 2 mounted on a fixed base 1 with a horizontal rotation angle of ±±. 180 °
Some of them are set so that they can be rotated to some extent, and are configured to be convenient for the user to observe. On the other hand, as shown in FIGS. 6 and 7, the fixed base 1 has a built-in display circuit 4 including a power supply device 3, and a display unit 5 provided in the display unit 2.
In order to supply power to the (display element) and send a display signal,
Connection cable 6 for connecting the display circuit 4 and the display unit 5
Is provided. In the above configuration, the conventional connection cable 6 uses a material having flexibility with respect to the horizontal movement of the display unit 2 in the horizontal direction, and the connection cable 6 is twisted with the rotation movement. Consideration is given to the overall length so that excessive stress is not generated.

[0003]

In the above-mentioned prior art, since the power source / signal wiring is housed inside the rotary base of the fixed portion 1, there is a tendency that an unnecessarily large amount of space is occupied. It becomes difficult to make the connection cable 6 uniform, and the twisting deformation of the connection cable 6 is difficult to be uniform, and there is a possibility that an excessive stress is locally generated. If the above is repeated, there is a possibility that the fatigue of the material of the connecting cable 6 may cause a disconnection over time, and the reliability of the entire device may be impaired. The present invention has been made in view of the above problems, and improves the durability of the connection cable 6, and has a simple structure and a small size to reduce the mounting area and improve the workability. Is intended to provide.

[0004]

Means for solving the above problems are set forth in the claims. That is, an object of the present invention is to provide a rotating display device having a fixed base and a display unit mounted on the fixed base, and the display unit horizontally rotating about a vertical axis. And the display unit are connected via at least one set of parallel signal cables spirally formed about the vertical axis.

[0005]

With the above structure, the parallel signal cable formed in a spiral shape can be rolled in and unwound at any time in accordance with the horizontal and horizontal rotational movement of the display portion, and excessive stress is applied to the rotational portion. It is possible to smoothly horizontally rotate the display unit in the left-right direction over a wide range without causing the occurrence.

[0006]

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a display circuit 4 and a display unit 5 using a parallel signal cable 16 as a telegraph / signal cable according to the present invention.
FIG. 3 is a perspective view of an embodiment showing a state in which the above are connected, and the upper connector 17 and the lower connector 18 are connected using a parallel signal cable 16 formed in a spiral shape around a vertical axis. Parallel signal cables include FPC (flexible printed circuit) cables and flat cables. The display unit 5 is housed inside the display unit 2, and the display circuit 4 including the power supply device 3 is housed inside the fixed base 1.

2 and 3 are perspective views showing another embodiment of the present invention. FIG. 2 shows a state in which the respective parts in the state of FIG. 1 are accommodated in a cable cover 19 and assembled. 3 is shown in FIG.
3 is a perspective view showing the inside of the configuration of FIG. That is, the cable cover 19 is a donut-shaped assembly including the upper cover 19a and the lower cover 19b. The cable upper end 16a of the parallel signal cable 16 projects upwardly and outwardly from the upper cover 19a to connect to the upper connector 17, while the cable lower end 16b projects laterally outwardly from a part of the cylindrical surface of the lower cover 19b to the lower connector 18. Assembled to connect. Further, although the display circuit 4 is fixed to the fixed base 1, the display unit 5 needs to rotate together with the horizontal rotation of the display unit 2. Therefore, as shown in FIG. 3, the upper surface cover 19a is different from the lower cover 19b. And is relatively slidable in the direction of arrow AB. This relative slidable portion is not between the inner edge of the lower cover 19b and the outer edge of the upper surface cover 19a, but the inner cylindrical portion 19c and the upper surface cover 19a.
It may be configured to relatively slide between and.

In the embodiment shown in FIGS. 2 and 3, since the parallel signal cable 16 is housed in the cable cover 19,
Compared to the embodiment of FIG. 1, the display unit 2 can be smoothly rotated without causing a problem such as twisting when the parallel signal cable 16 is wound and unwound.

FIG. 4 is a view showing the mutual relationship between the cable cover 19 and the parallel signal cable 16 in accordance with the rotation of the display unit 2 with respect to the fixed base 1 in FIG. 5, when the display unit 2 is facing the front. If (a) is the standard state, the display unit 2
When the is rotated in the direction of arrow B than in the standard state (b), the parallel signal cable is tightly wound, and when rotated in the direction of arrow A (c), the parallel signal cable is loosely wound. The rotation of the display unit 2 is smoothly performed, and it is possible to prevent stress from being applied to the parallel signal cable.

Although the above-mentioned embodiment has presented the structure of the single turn of the parallel signal cable 16, it is possible to connect a plurality of parallel signal cables 16 between the display circuit 4 and the display unit 5. In this case, the upper connector 17 and the lower connector 18 may be provided separately or shared. By using the parallel signal cable 16 of the present invention, unlike the conventional connection cable, it is not necessary to provide a space for accommodating the device by making it longer than a required length with a margin, and the display unit 2 can be left and right. It is possible to significantly reduce the space for rotating the lens in the horizontal direction at any time. When the number of signals to be connected increases, the number of conventional connection cables increases and the cable diameter increases, so that it is not easy to flex them freely. However, according to the parallel signal cable 16, the number of signals corresponding to a plurality of signals is increased. It is possible to stack and use cables, and in particular, the embodiment of the parallel signal cable 16 housed in the cable cover 19 shown in FIGS. 2 and 3 is extremely effective in housing a plurality of signals. is there.

[0011]

According to the conventional connecting cable, since the display portion is rotated in the horizontal direction at any time, the connecting portion is arranged in an appropriate length so as to be bundled or stopped so as not to become messy. In order to alleviate the generation of the excessive stress due to the rotation due to the twist, it is necessary to store the product with an allowance in the length. Therefore, the assembling work is not easy and the productivity is lowered. However, the implementation of the present invention provides a swivel connecting cable which improves the durability and reliability of the connecting cable 6, and has a simple structure and a small size to reduce the mounting area and improve the workability. It has a remarkable effect such as being able to.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment showing a state in which a display circuit and a display unit are connected using a parallel signal cable according to the present invention.

FIG. 2 is a perspective view of an embodiment showing an assembled state in which each part of FIG. 1 is housed in a cable cover.

FIG. 3 is a perspective view showing the internal structure of the embodiment shown in FIG.

FIG. 4 is a diagram showing a relationship between a cable cover and a parallel signal cable accompanying rotation of a display unit with respect to a fixed base.

FIG. 5 is a perspective view of an apparatus having a fixed base and a display unit that is rotatable in a horizontal direction.

6 is a connection diagram of a conventional connection cable in the device shown in FIG.

FIG. 7 is a cross-sectional view showing a conventional connection cable inside the device shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Fixed stand 2 ... Display part 3 ... Power supply device 4 ... Display circuit 5 ... Display unit 6 ... Connection cable 16 ... Parallel signal cable 16a ... Cable upper end 16b ... Cable lower end 17 ... Upper connector 18 ... Lower connector 19 ... Cable cover 19a ... Top cover 19b ... Bottom cover

Claims (2)

[Claims] 1. A rotating display device comprising a fixed base and a display unit mounted on the fixed base, wherein the display unit is configured to horizontally rotate about a vertical axis. A rotating display device characterized in that the display parts are connected to each other via at least one pair of parallel signal cables spirally formed about the vertical axis. 2. A cylindrical cable cover for accommodating the parallel signal cable is provided, and the parallel signal cable is configured so as to be able to be wound and unwound within the cable cover. Rotating display device.