JPH095452A - Watch with illumination - Google Patents

Abstract

PURPOSE: To easily see and confirm the time by widening the display region of the dial of a watch with illumination. CONSTITUTION: Electroluminescence substance 5 is laminated on the lower face of a dial 6 to illuminate the dial 6. An engaging section 17 is formed on a parting member 15, it is engaged with a module 4, and the outer peripheral portions of the dial 6 and the electroluminescence substance 5 are sandwiched between the engaging section 17 and the module 4. No dedicated member is required for fixing the dial 6 and the electroluminescence substance 5, and the display region of the dial 6 can be widened that much.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece having an illumination member such as electroluminescence provided therein for illuminating a dial.

[0002]

2. Description of the Related Art A wristwatch in which an illuminating member is arranged to illuminate a dial is convenient in use because it can confirm the time at night. Since a flat plate-shaped lighting member such as electroluminescence as a lighting member for performing this lighting is thinner than a lighting member formed of a light-emitting element such as a micro lamp and an LED, there is an advantage that the entire timepiece can be thinned. Widely used in various watches such as wrist watches. FIG. 3 shows the structure of a conventional analog wristwatch using this electroluminescence.

A module 32 is provided in the watch case 31, and an electroluminescence 33 and a dial 34 made of a transparent material are attached to the upper surface of the module 32 in a laminated state. The electroluminescence 33 emits light when an illumination signal is input from the module 32, and illuminates the dial 34. As a result, the dial can be read at night or in a dark space. 3
Reference numeral 5 is an hour character formed by printing or the like on an appropriate portion of the upper surface of the dial 34, 36 is a pointer such as an hour hand attached to the module 32, 37 is a watch glass, and 38 is a back cover.

In the timepiece having such a structure, it is necessary to fix the electroluminescence 33 and the dial plate 34 to the module 32 without displacement. Therefore, conventionally, the mounting member 40 is used for assembly. The mounting member 40 is shaped so as to sandwich the outer peripheral portions of the module 32, the electroluminescence 33, and the dial plate 34, and the electroluminescence 33 and the dial plate 34 are fixed to the module 32 by sandwiching the mounting member 40, and the mounting member 40 is mounted relative to the module 32. Positioning is done.

The mounting member 40 has an upper end portion 40a.
The above-mentioned fixing is performed by abutting against the outer peripheral portion of the dial plate 34. Due to this fixing, the upper end portion 40a of the mounting member 40 extends a little inside the dial plate 34 and the inside of the timepiece case 31. Is exposed to. As a result, this upper end portion 40
Since a is seen from the outside through the watch glass 37, the appearance of the watch is deteriorated. Therefore, the parting member 41 for concealing the end portion 40a of the mounting member 40 is arranged. The parting member 41 is formed in a ring shape that covers the outer peripheral portion of the dial plate 34, and is more shaped than the upper end portion 40 a of the mounting member 40.
It is arranged on the dial plate 34 so as to be located inward, thereby preventing the mounting member 40 from being visually recognized from the outside. Therefore, in the conventional timepiece, the portion inside the parting member 41 is a display area for displaying the hour characters 35 and the like.

[0006]

In the structure as described above, the parting member 41 for concealing the mounting member 40 is the dial plate 3.
Since the dial plate 34 is located on the inner side of the dial 4, the display area of the dial plate 34 is narrowed, the dial plate 34 is difficult to see, the degree of freedom in design is limited, and the variation thereof is small. Further, the mounting member 40 and the parting member 41 for concealing this are required, the number of parts is large, and the assembly is troublesome.

The present invention has been made in consideration of the problem of such a conventional structure. The display area of the dial can be widened, the degree of freedom in design can be increased, and the number of parts can be reduced. It is an object of the present invention to provide an illuminated timepiece that can be used.

[0008]

The illuminated timepiece of the present invention comprises:
A module including a circuit board that outputs a signal for lighting,
A flat plate-shaped lighting member which is arranged on the module and emits light in response to a lighting signal from the circuit board, a dial arranged on the lighting member, and a state where the dial plate is in contact with the outer peripheral portion of the dial plate. A parting part and an engaging part that extends from this parting part and engages with the module.
A parting member that sandwiches the lighting member and the dial between the parting portion and the module by engagement of the engaging part. In this case, an indication regarding the time can be provided on the upper surface of the parting member of the parting member, and an engaging recess for engaging the engaging part of the parting member can be formed on the module.

[0009]

With the above-mentioned construction, the parting member is fixed by sandwiching the lighting member and the dial between the parting part and the module by the engagement of the engaging part with the module. Therefore, a mounting member for fixing the lighting member and the dial to the module is unnecessary, and it is not necessary for the parting member to conceal the mounting member. Therefore, the parting member can be arranged on the outside of the dial, or the parting member itself can be made small,
As a result, the display area of the dial can be increased and the degree of freedom in design is expanded. In addition, the number of parts is reduced and the assembly becomes easy.

[0010]

FIG. 1 shows an embodiment in which the present invention is applied to an analog electronic wrist watch. The inside of the watch case 1 is sealed by attaching the watch glass 2 to the upper surface of the watch case 1 and attaching the back cover 3 to the lower surface. In this case, a part of the back cover 3 penetrates into the timepiece case 1, and the convex portion 3a formed in this intrusion part engages with the inner surface of the timepiece case 1 to attach the back cover 3.
Reference numeral 29 is a seal that seals between the back cover 3 and the watch case 1. A module 4 is arranged inside the timepiece case 1, and an electroluminescence 5 and a dial plate 6 are placed on the upper surface of the module 4 in a stacked state.

The module 4 has a circuit board 7 for controlling the operation of the entire timepiece provided therein and also has a train wheel mechanism (not shown), and a pointer shaft 8 is connected to the train wheel mechanism. The pointer shaft 8 extends upward through the central portions of the electroluminescence 5 and the dial plate 6, and the pointer shaft 8 is provided with a pointer including an hour hand 9, a minute hand 10 and a second hand 11.

The dial plate 6 is formed of a transparent or translucent member that allows light to pass through, and an hour character 12 indicating the time is formed on the upper surface by printing, engraving or the like.
The electroluminescence 5 constitutes a flat plate-shaped illumination member, and illuminates the dial 6 by emitting light in a state of being laminated on the lower surface of the dial 6. Illumination of the dial 6 is performed on the entire dial 6, so that the electroluminescence 5 is formed to have substantially the same size as the dial 6.

Light emission of the electroluminescence 5 is performed by inputting an illumination signal from the circuit board 7. Therefore, the electroluminescence 5 and the circuit board 7 are electrically connected by the connector member 13. In the illustrated example, the connector member 13 is made of a conductive coil spring, and both ends of the coil spring are elastically in contact with the electrodes of the electroluminescence 5 and the pattern terminals of the circuit board 7.

In the timepiece having such a structure, it is necessary to prevent the relative displacement of the dial plate 6 with respect to the hands by fixing the dial plate 6 and the electroluminescence 5 in the laminated state relatively to the module 4. In this embodiment, this fixing is performed by the parting member 15. The parting member 15 is composed of a parting part 16 which is entirely formed in a ring shape and is located on the upper surface of the outer peripheral portion of the dial plate 6, and an engaging part 17 which extends from the parting part 16 so as to hang down. There is.

The parting portion 16 of the parting member 15 is a dial plate 6.
The outer peripheral portion of the dial 6 is abutted against the outer peripheral portion of the dial 6 to cover the outer peripheral portion of the dial 6, thereby concealing the outer peripheral portion of the dial 6. In the illustrated example, the parting portion 16 has a tapered surface 16a that is inclined obliquely downward toward the center of the dial 6, and the tapered surface 16a hides the inner surface of the watch case 1 and the outer peripheral portion of the dial 6. are doing. Thereby, the appearance is improved without seeing the inside of the watch case 1.

The engaging portion 17 extends partially downward from the parting portion 16 and engages with the module 4. This engagement forms a hook portion 17a (see FIG. 2) at the lower end of the engagement portion 17 and an engagement recess 18 (see FIG. 1) on the outer surface of the module 4 corresponding to the hook portion 17a. , By engaging them with each other. By this attachment, the electroluminescence of the laminated state 5
And the outer peripheral part of the dial 6 is the parting part 16 of the parting part 15.
And the module 4, and is fixed. Therefore, the dial 6 together with the electroluminescence 5 is
It is fixed to the module 4 and can be prevented from being displaced relative to the pointer.

In this embodiment, since the dial plate 6 and the electroluminescence 5 are fixed to the module 4, it is not necessary to use a dedicated mounting member, and the number of parts is reduced accordingly, and the structure is simplified. It is easy to assemble. In addition, the parting member 15 can be positioned outside the dial 6, so that the display area of the dial 6 can be widened. For this reason, it becomes easy to visually recognize the time, the degree of freedom of design is expanded, and the variation is increased.

In FIG. 1, reference numeral 19 denotes a middle frame member arranged between the outer surface of the module 4 and the timepiece case 1.
The middle frame member 19 is formed of a material and shape having elasticity, and the elasticity prevents displacement and displacement of the module 4 in the timepiece case 1, but it can be omitted if unnecessary. it can.

FIG. 2 is a perspective view of the parting member of the present embodiment, in which the parting part 16 and the engaging part 17 partially hang downward. A time scale 20 is displayed on the taper surface 16a of the parting portion 16 of the parting member 15 by printing, marking, or the like. By providing the time scale 20 on the parting member 15, the parting member 15 is integrated with the dial 6 in design. Therefore, the parting member 15 does not feel uncomfortable and the design is improved. Moreover, since it is not necessary to provide the time scale 20 on the dial 6,
There is an advantage that the design of the dial plate 6 can be expanded freely.

The present invention is not limited to the above embodiments, but various modifications are possible. For example, the present invention can be applied to a table clock other than a wrist watch, a pocket watch and the like.

[0021]

According to the present invention, the engaging member of the parting member is engaged with the module to fix the lighting member and the dial. Therefore, a dedicated member for fixing the lighting member and the dial is not required. As a result, the number of parts can be reduced and the display area of the dial can be widened, the time can be easily recognized, and the design can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of one embodiment of the present invention.

FIG. 2 is a partial perspective view of a parting member.

FIG. 3 is a partial sectional view of a conventional timepiece.

[Explanation of symbols]

 1 Watch Case 4 Module 5 Electroluminescence 6 Dial 15 Parting Member 16 Parting Part 17 Engaging Part

Claims (3)

[Claims] 1. A module provided with a circuit board for outputting an illumination signal, a plate-like illumination member arranged on the module and emitting light according to the illumination signal from the circuit board, and arranged on the illumination member. A dial plate, a parting portion that covers the outer peripheral portion of the dial plate while being in contact with the dial plate, and an engaging portion that partially extends from the parting portion and engages with the module. A parting member that sandwiches the lighting member and the dial between the parting portion and the module by the engagement of
Illuminated watch characterized by being equipped with. 2. A display regarding time is provided on an upper surface of a parting portion of the parting member.
Illuminated clock as described. 3. The timepiece with illumination according to claim 1, wherein an engaging concave portion with which the engaging portion of the parting member engages is formed in the module.