JPH0552786U - Illuminated clock - Google Patents

Abstract

(57) [Summary] [Structure] The light emitting element 11 is provided on the back surface of the translucent dial 7.
The circuit board 6 on which is mounted is arranged in close proximity, and the position of the light emitting element 11 corresponds to the position of the time scale 7b of the dial 7. [Effect] Since the position of the time scale of the dial and each pointer are simultaneously illuminated by the light emitting element, it is easy to read the time scale at night.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a timepiece with a lighting device that can easily read the time scale even at night.

[0002]

[Prior Art]

 Conventionally, it is known that a timepiece in which the dial of the timepiece is illuminated from the back side diffuses light uniformly over the entire dial so that there is no difference in brightness.

[0003]

[Problems to be solved by the device]

 When the light is uniformly diffused on the entire dial in this way, the position of the pointer becomes clear, but the position of each time scale is unclear, making it difficult to know the exact time easily.

Therefore, an object of the present invention is to provide a timepiece with a lighting device in which both the position of each pointer and the position of each time scale can be easily recognized.

[0005]

[Means for Solving the Problems]

 A feature of the present invention is that a circuit board on which a light emitting element is mounted is arranged close to the back surface of a transparent dial, and the position of the light emitting element corresponds to the position of the time scale of the dial. Where it is.

[0006]

【Example】

 In FIGS. 1 and 2, the watch case is composed of a front frame 1 and a rear frame 2, and a sound-stop button 3 projects upward and downward on the upper surface of the watch case, and the sound-stop button opens and closes the sound-stop switch 4. To do. As shown in FIG. 2, a mounting portion 1a is integrally formed on the front frame 1, and a timepiece mechanical body 5 is mounted on the back surface of this mounting portion. A printed circuit board 6 as an example of a circuit board is provided on the front surface of the mounting portion 1a, and a translucent dial plate 7 is positioned in front of the printed circuit board. The dial 7 has time numbers 7a and time scales 7b formed concentrically, and the time numbers 7a and time scales 7b are provided at intervals of 30 ° from the top. The outer peripheral edge of the dial 7 is placed on the step portion 1b formed on the inner wall surface of the front frame 1, and the open end of the transparent front cover 8 press-fitted from the front side of the front frame 1. The edge portion of the dial 7 is clamped and fixed by the portion and the step portion 1b. Further, a pointer shaft 9 penetrates through a cylindrical portion 1c formed in the center of the mounting portion 1a, and at the tip of the pointer shaft, hour hands, minute hands, second hands, and safety hands 10 are attached. is there.

By the way, the printed circuit board 6 has a substantially circular shape as shown in FIG. 3, and circuit patterns 6a and 6b are printed on this printed circuit board. A plurality (12 in this embodiment) of light emitting diodes 11 as an example are concentrically mounted at intervals of 30 ° with respect to the inside, and a through hole 6 c is formed in the central portion, This through hole is fitted on the outer circumference of the cylindrical portion 1c through which the pointer shaft 9 passes. The respective positions of the light emitting diodes 11 ... Correspond to the positions of the time scale 7b displayed on the dial 7 as shown in FIG.

Therefore, when the light emitting diode 11 is turned on, the position of each time scale 7b of the dial 7 becomes bright spotwise, and at the same time, the hands 10 ... Are illuminated so that they can be easily recognized.

[0009]

[Effect of the device]

 According to the present invention, the position of the time scale of the dial and the hands are simultaneously illuminated by the light emitting element, so that the time scale can be easily read at night.

[Brief description of drawings]

FIG. 1 is a front view of a timepiece showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line aa of FIG.

FIG. 3 is a front view of a circuit board.

[Explanation of symbols]

 6 circuit board (printed circuit board) 7 dial 7b time scale 10 pointer 11 light emitting element (light emitting diode)

Claims (1)

[Scope of utility model registration request] 1. A circuit board is disposed in the vicinity of the back surface of a translucent dial, and a light emitting element is mounted on the circuit board. The position of the light emitting element is the time scale of the dial. A timepiece with a lighting device, which corresponds to the position of.