JPH05264747A - Wall clock - Google Patents

Abstract

PURPOSE:To display time at high contrast clearly without using an illuminating device by mixing a fluorescent material into a dial and generating sufficient brightness of displayed characters by the fluorescence. CONSTITUTION:A dial 6 comprises a colored transparent dial body 8 with a colored or colorless fluorescent material 7 mixed into resin such as transparent acryl, vinyl chloride, etc., and a display part 9 with display of numbers, scales, etc., printed on a rear face using for example white reflecting paint. Direct light and scattered light from the surface of the dial 6 is incident inside the body 8, reflected by the fluorescent material 7 to be fluorescent, and reflected inside the dial 6, wherein a part of it is reflected by the display part 9 to be reflected and displayed forward. Other parts of the fluorescence are transmitted while being totally reflected in the body 8 to be emitted from a periphery. Reception of external light causes fluorescence by the fluorescent material 7, and the display part 9 is effectively reflected and illuminated through the body 8, so that an illuminating ball is not needed to be provided inside, and no power source is necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wall clock suitable for hanging on a ceiling such as a station building or a platform.

[0002]

2. Description of the Related Art A general wall clock suspended on, for example, a platform in a station yard allows its clock display to be viewed at any time of the day or night. For example, as shown in FIG. 1 is composed of a plate material capable of transmitting light, and on the back side of the dial 1 is provided a lighting device 2 for transmitting and illuminating the dial, and in the daytime, the clock display, that is, the time, is displayed by the dial. Recognizes the time by visually observing the reflected light from the outside light, and at night, turning on the lighting equipment installed inside the watch and illuminating the dial with the lighting from this lighting equipment 2. It is something that can be done.

[3] 3 is a clock movement, 4 is a pointer, 5
Indicates a transparent watch cover located in front of the display plate 1 and the hands 4.

[0004]

However, in such a wall clock having such a conventional structure, a luminaire for transmitting and illuminating the dial is required to be installed in the timepiece at night, so that the timepiece main body is required. However, there is a problem that the power supply equipment for operating the lighting equipment is required, and the equipment cost is increased. Furthermore, there is a problem in that the illumination bulb is cut off due to long-term use of the timepiece and must be replaced with a new illumination bulb each time, which causes trouble and troublesomeness in the replacement work.

Further, in the conventional timepiece, it is difficult to confirm the time display when the internal lighting is delayed even though the amount of extraneous light is insufficient, such as at dusk. There were also points.

[0006]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to such a conventional problem, and a fluorescent substance is mixed in a display plate of a timepiece, and the reflecting action of the fluorescent substance causes the display plate to be changed. With the structure that the display characters given on the display can generate sufficient brightness by the extraneous light in the day and night, the brightness of the display is enhanced by the external light, and the time display is clear with high contrast without using lighting equipment inside the watch. It is to provide a wall clock that can be displayed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. In the present invention, however, the dial plate has a feature, and the equipment of the lighting equipment is omitted. Therefore, the other components are the same as the conventional example. Therefore, the same members as the constituent members of the conventional example, that is, the timepiece movement 3, the pointer 4, and the transparent cover 5 are denoted by the same reference numerals as those of the conventional example, and the description of the members is omitted.

That is, the construction of the dial 6 shown in FIG. 2 is transparent as shown in FIG. 3, for example, a resin such as acrylic, polycarbonate, styrene, vinyl chloride or the like is a colored or colorless fluorescent dye or fluorescent pigment. A colored transparent dial main body 8 mixed with a fluorescent substance 7, and this dial main body 8
And a display unit 9 on the back surface of which the numbers, scales and the like are displayed by a printing means by using a white reflective paint. Therefore, according to the dial plate 6, the direct light and the dispersed light received from the surface of the dial plate 6 are incident on the inside of the dial plate body 8 and the incident light is reflected by the fluorescent dye to become fluorescence. While reflecting inside the dial 6, a part of the fluorescence is reflected by the display unit 9 and is reflected and displayed in front of the dial 6, and the other part of the fluorescence is totally reflected inside the dial body 8. While being transmitted to the edge, fluorescence is emitted from the edge. It is effective for this fluorescence to be about 370 mm or more. Further, on the back side of the dial plate 6, a dark-colored light-shielding plate 10 for blocking light transmitted from the front side of the dial plate 6 to the back surface is superposed.

As in this embodiment, the watch dial 6 is colored and molded with a transparent resin mixed with the fluorescent substance 7,
Further, since a display portion 9 such as a graduation number made of a reflective paint is provided on the back surface of the dial plate 6, when external light is incident on the dial plate 6 from the front surface thereof, the characters are By the reflection of the fluorescent substance 7 in the plate 6, it becomes colored reflected light and reaches the display portion 9 and the edge of the display plate.
The reflected light reflected by is radiated toward the surface of the display plate, so that the reflective display of the display unit 9 is performed with high brightness contrast. Since the reflected illumination brightness of the display unit 9 is proportional to the amount of received light (incident light) of the dial plate 6, the light receiving area of the dial plate 6, that is, the wider the portion excluding the display unit 9 on the display plate surface, the display unit 9 is larger. The illumination brightness of is increased.

Further, since the light shielding plate 10 is superposed on the back side of the dial plate 6, the light incident on the inside of the dial plate 6 from the front side of the dial plate 6 by the action of the dark color light shielding plate 10 is the dial plate. 6 can be suppressed from being transmitted to the back side of the display panel 6, and the brightness contrast of the display section 9 can be enhanced by the dark color effect thereof. It further enhances the contrast with the background.

Therefore, according to the display plate of the present embodiment, when the display plate receives external light, the fluorescent substance 7 in the dial plate 6 causes fluorescence, and the display portion provided on the back surface of the display plate is Since it is effectively reflected and illuminated through the dial main body 8, it is not necessary to install an illuminating sphere inside the timepiece mechanism to which the display plate is assembled, and further, no power supply equipment is required, which is economical. In particular, in the case of a wall clock that is suspended and used on a station platform or the like, the fact that it is excellent in performance and that it is possible to omit the power supply facility greatly contributes to reduction of facility cost, maintenance, and labor saving of electric energy.

[0012]

As described above, according to the present invention, the transparent resin mixed with the fluorescent substance 7 is molded into a plate shape, and the back surface of the plate shape is provided with the display portion 9 such as a scale or a number by a reflective coating material. Since it is a wall clock provided with the dial plate 6 formed and the dark-colored light-shielding plate 10 which is overlapped on the back side of the dial plate 6, according to this, when the display plate receives external light, The display portion provided on the back surface of the display plate by generating fluorescence from the fluorescent substance 7 in the dial plate 6 is the main body 8 of the dial plate.
Since it is effectively reflected and illuminated through, it is not necessary to install an illuminating sphere inside the timepiece mechanism to which the display plate is assembled, and further, since no power supply equipment is required, it is excellent in economic efficiency,
In particular, the fact that the power supply facility can be omitted has the effect that it greatly contributes to the reduction of facility costs, maintenance, and labor saving of electrical energy in the case of a wall clock suspended and used on a station platform or the like.

[Brief description of drawings]

FIG. 1 is an explanatory view of a conventional example timepiece.

FIG. 2 is an explanatory view of a timepiece according to the embodiment of the invention.

FIG. 3 is an explanatory diagram of a dial plate configuration according to the embodiment of the present invention.

[Explanation of symbols]

 3 ... Clock movement 4 ... Pointer 5 ... Clock cover 6 ... Dial 7 ... Fluorescent material 8 ... Dial body 9 ... Display 10 ... Dark-colored light-shielding plate

Claims (1)

[Claims] 1. A character formed by molding a transparent resin mixed with a fluorescent substance (7) into a plate shape, and further, on the back surface of the plate shape, a display portion (9) such as scales and numbers made of a reflective coating material. A wall clock comprising a plate (6) and a dark-colored light-shielding plate (10) which is superposed on the back side of the dial (6).