JPS5833588Y2 - clock device - Google Patents

Description

[Detailed Description of the Invention] This invention particularly relates to a clock device installed at night or in a dark place such as a theater.

When displaying the time at night or in a dark place, by shining light behind the pointer indicating the time and making the pointer opaque, the pointer stands out and is displayed more realistically.

In order to make such a display, it is conceivable to install a light source behind the dial, make a hole in the dial at the center of rotation of the pointer, and direct the light from the light source through the hole. If you do so, the back of the dial will be visible from the outside, making it unsightly.

Therefore, a space should be provided between the dial and the hands, and a reflector plate should be placed immediately behind the hands so that the light from the light source is reflected by the reflector plate and the light leaks to the front side of the dial. is possible.

In this case, sufficient light cannot be leaked in the longitudinal direction of the dial, and the illuminated area of the front of the dial is small, causing the hands to Only a portion of the time is displayed in the length direction, and the time display is not easy to follow.

From this point of view, the idea was to make a hole in the dial centering on the needle axis, and place a convex mirror on the front side facing the hole at a distance from the dial. The light is emitted from the front surface of the dial, and a convex mirror is used to spread the light widely over the front of the dial.The hole is covered with a transparent acrylic plate, which acts as a secondary light source, and the light is directed to the back of the dial. This allows more radiation to be emitted to the front of the dial without leaking, so that the needle stands out in black against the light area.

Next, the timepiece device according to this invention will be explained with reference to the drawings.

The button 11 in the figure indicates a case, and the front plate of the case constitutes a dial 12, and a hole 13 is drilled in the center of the entire surface, and a hole 13 is punched in the center of the hole behind the dial 12. A clock mechanism 14 is disposed within a case 11 that protects the watch.

A needle shaft 15 of the clock mechanism 14 projects outward through the hole 13, and a long hand 16 and a short hand 17 are respectively attached to the projecting ends thereof.

This device has a long hand 16, a short hand 17, and a dial 12.
A convex mirror 18 is arranged at a distance from the dial 12 so as to substantially close the hole 13 when viewed from the front.

The convex mirror 18 is convex toward the dial 12 side.

Furthermore, the hole 13 is closed with a transparent acrylic plate 19.

A needle shaft 15 is inserted through the center hole of the transparent acrylic plate 19 and the convex mirror 18, respectively.

The peripheral part of the transparent acrylic plate 19ri is overlapped with the dial 12, and a button is attached to the overlapped part to be fixed to the dial 12.

The central part of the transparent acrylic plate 19 is thick, and the thick part has a curved surface that comes into contact with the convex mirror, and the back side of the acrylic board 19 comes into contact with the cover of the clock mechanism 14.

A tube body 21 protruding from the cover 14 coaxially protrudes outside the needle shaft 15, and the end protruding from the convex mirror 18 is bent outward to mechanically connect the clock mechanism 14, the convex mirror 18, and the acrylic plate 19. fixed to each other.

White paint is applied to the surface of the convex mirror 18 on the dial 12 side,
Or a surface that reflects light well, such as chrome or plating.

An annular wall light 22 centered on the extension of the needle shaft 15 is disposed as a light source in the rear case 11 of the dial 12.

As a time display that can be pressed on the dial 12, large holes are made on the dial at the 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions on a circle centered on the needle axis 15, The hole is formed by a time display transparent body 24 made of, for example, a transparent acrylic plate.
It is blocked by.

Furthermore, two small holes are made at equal angular intervals between these four display positions, and the small holes are covered with transparent display bodies 25 for displaying the time between them.

These display bodies 24 and 25t'i are provided on the same circle at equal angular intervals with the needle shaft 15 in the middle, and function as a dial for time display.

For example, as shown in FIG. 4, these display bodies include a transparent cylindrical acrylic body 26 with a short axis that closes a hole drilled in the dial 12 and protrudes from the front side, and a white translucent layer is formed on the protruding end surface. 27 and a lavender color layer 28 are sequentially formed.

An annular fluorescent lamp 22ri is located near the display body 24.25.

Therefore, the light from the fluorescent lamp 22 leaks to the outside through these display members 24 and 25, and the time is displayed.

In this example, this clock device also serves as another display, and a no-smoking display board 31 is provided above the time display section, and behind it is a bar-shaped fluorescent lamp 32 for displaying this.
is arranged, and a random white acrylic board 32 is arranged between the fluorescent lamp and the no-smoking display board 31 so that the fluorescent lamp is not noticeable from the outside.

Furthermore, a break display board 34 is provided below the time display section, and a fluorescent light 35 and an acrylic board 36 are similarly provided therefor.

Below that, a numeric display tube 37 is provided in the case 11 for displaying the remaining time of the break.

According to the clock device devised by Hetako mentioned above, a fluorescent lamp 22
The reflected light passes through the center hole 13, passes through the acrylic plate 19, and reaches the reflecting mirror 18. Since the reflecting mirror 18 is a convex mirror, the light is reflected onto the front side of the dial 12.

Moreover, since the acrylic plate 19 is used, this acrylic plate 19 acts as a secondary light source, and from this the dial 12
More light is emitted to the front side.

In particular, as shown in the figure, the acrylic plate 19 and the convex mirror 1B
When the distance S1 is provided between the dial 1 and the dial 1
2, less of the light that reaches the reflecting mirror 18 returns inside than the dial.

Therefore, it becomes brighter than the back of the opaque long hand 16 and short hand 17, and the hands stand out and are clearly displayed.

Furthermore, the acrylic plate 19 protects the dial, preventing dirt from entering the case, and as shown in the figure, the convex mirror 18 and clock mechanism 14 are integrally attached, making it easier to attach them to the dial 12. This can be done through the acrylic plate 19, making the installation process that much easier.

Furthermore, even when viewed up close, the interior is not visible and is not unsightly.

Furthermore, if the display bodies 24 and 25 of the time display portion are also made to protrude from the dial, the periphery of the display body becomes blurred, resulting in a soft display as a whole along with the display of the hands.

[Brief explanation of drawings]

FIG. 1 is a front view showing an example of a clock device according to this invention;
Figure 2 is a side view, Figure 3 is an enlarged sectional view of the main parts, Figure 4
FIG. 3 is an enlarged sectional view of the part shown in FIG. 11: Case, 12: Dial, 14: Clock mechanism, 15:
Needle shaft, 16: long hand, 17: short hand, 13: child L18: convex mirror, 19 near acrylic plate.

Claims (1)

[Scope of utility model registration request] A dial, a clock mechanism arranged behind the dial, a needle shaft of the clock mechanism protruding to the front through a hole formed in the dial, an opaque hand attached to the protruding end, and the clock mechanism. A convex mirror disposed between the hands and the dial, facing the dial around the needle axis, and convex to the dial and blocking the hole when viewed from the front, and a convex mirror located behind the dial. A timepiece device comprising: a light source that is provided to illuminate the convex mirror through the hole and illuminate the front surface of the dial with the reflected light; and a transparent acrylic plate that closes the hole.