JPS626557Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of an electronic timepiece with an illumination device, and particularly relates to a structure for supporting and fixing a reflector.

In an electronic watch with a lighting device, a light guiding member made of acrylic to which a substance such as styrene is added is placed below a liquid crystal display device in order to enhance the lighting effect of the lighting device. However, since there is some looseness between the light guide member and the light guide member storage portion, abnormal noises are often generated when the watch body is subjected to impact or shaken. Conventionally, as a method for preventing this, a light guide member fixing member 1 as shown in FIG. 1 is placed between the liquid crystal display device 2 and the light guide member 3 as shown in FIG. Light guide member fixing member 1
By pressing the light guide member 3, generation of abnormal noise due to unnecessary movement of the light guide member 3 is prevented. However, this method requires an extra space _H1 between the liquid crystal display device 2 and the light guide member 3 and an extra member such as the light guide member fixing member 1, as shown in FIG. This was not only excessively thick, but also disadvantageous in terms of cost.

The purpose of the present invention is to prevent backlash that occurs between the light guide member and the light guide member, especially in a wristwatch equipped with a lighting device using a light guide member, etc., and to reduce the loss of light from the lighting device. In order to prevent this, the light guide member and the lighting device are kept horizontally, which prevents the occurrence of abnormal noise due to rattling as a whole, and makes the watch body thinner by eliminating the need for a fixing member for the light guide member. and to reduce the number of parts.

The present invention will be explained in detail below with reference to FIGS. 3 and 4. 9 is a lamp which is a lighting device; 10 is a liquid crystal display device; 11 is a light guide member provided with a reflective section; 12 is a holding member that positions and holds the liquid crystal display device 10; A member storage section 12a is provided. Further, the storage portion has a protrusion 12b, grooves 12c are provided on both sides of the protrusion 12b, and an elastic portion 12d is formed. Therefore, as shown in FIG. 4, when the light guide member 11 is assembled into the light guide member housing 12a and the liquid crystal display device 10 is assembled and fixed in the watch body, the protrusion 12b has an elastic force. , the light guide member 11 is pushed up to support and fix the lamp 9, which is an illumination device, and the light guide member 11, while always keeping the horizontal position. This suppresses unnecessary movement of the light guiding member 11 and prevents the generation of abnormal noise.

As described above, according to the present invention, since the elastic member is formed directly on the holding member, the number of parts can be reduced, the light guide member can be supported without play, and the loss of light from the lighting device can be reduced, etc. The effect is enormous.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional light guiding member. FIG. 2 is a sectional view of the main parts of a watch body in which the light guide member fixing member is incorporated and the light guide member is fixed. FIG. 3 is a plan view of the holding member of the present invention. FIG. 4 is a cross-sectional view of the main parts of the watch body taken along section AA' in FIG. 3. 9...Lamp serving as a lighting device, 10...Liquid crystal display device, 11...Light guiding member provided with a reflective portion, 12
...Holding member, 12a...Light guiding member storage section, 12
b...Protrusion, 12c...Groove, 12d...Elastic part.

Claims (1)

[Scope of utility model registration request] It consists of a liquid crystal display device, a light guide member, and a holding member that positions and holds the liquid crystal display device and has an illumination device, and a plurality of elastic protrusions are provided in a pair on the liquid crystal display device positioning and holding portion of the holding member. When the liquid crystal display device is assembled into the holding member with the above provision, the liquid crystal display device including the light guide member is elastically held via the protrusion, and the illumination device is placed on the side surface of the light guide member, and the light guide member is An electronic wristwatch with a lighting device, characterized in that the lighting device is kept horizontal with respect to the light member.