JPS5813345Y2 - Glass structure for mobile watches - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a glass for a portable watch, and its purpose is to improve the appearance of the outer periphery of the glass after the portable watch is completed.

The present invention will be explained in detail below by comparing it with a conventional watch glass.

FIG. 1 shows an example of the structure of a conventional portable watch side glass part.

There are various types of glass structures for portable watches, but among them, the type shown in FIG. 1 is mainly used for glasses with a non-circular planar shape due to its simple structure.

In particular, this structure is often used in digital display type portable watches, which have been rapidly increasing in number recently.

To explain the structure with reference to Figure 1, 3 is a parting board;
It has the role of masking unnecessary parts.

1 is made of paulownia wood, and 2 is made of glass. The body and the glass are fixed via a plastic gasket 4 that is arranged with a tightening margin between them, and the tightening margin prevents it from being pulled out and maintains waterproofness. .

Note that the parting plate is fixed between the glass and the body, but if the glass and parting plate are in close contact with each other, the surface of the parting plate will partially become glossy when viewed from the top of the glass. In order to prevent this, it is usual to provide a protrusion 3a on the outer periphery of the parting plate with a gap between it and the glass as shown in Figure 2. be.

A major drawback of this conventional structure is that the outer periphery of the glass does not have a clean appearance.

This is because ■ Interference fringes appear partially due to the contact between the bottom surface of the glass and the parting plate protrusion.

■ The gap 5 between the plastic packing and the parting plate is partially visible, and the body can also be seen through that gap.

■ Extrusion part 4 due to plastic packing part
A can be seen through the glass.

This is due to the following causes.

The present invention eliminates the above-mentioned drawbacks, and the gist thereof is to fix the body and the glass through a plastic gasket arranged with an interference between them, and to fix at least the outer peripheral lower surface and side surface of the glass. A lower slope or a transparent part of the glass outer periphery is formed, an outer periphery protrusion is brought into contact only with the opaque part on the lower surface of the outer periphery of the glass, and a parting plate is provided so that the inner part of the outer periphery protrusion has a gap with the lower surface of the glass. This is a glass part structure for a portable watch that is sandwiched between the top surface of the body and the bottom surface of the glass.

A detailed explanation will be given below using figures.

FIG. 3 shows an embodiment of the present invention, the basic structure of which is the same as the conventional one shown in FIG.

As shown in FIG. 4, the present invention is characterized in that an opaque portion 32b is printed or coated on the lower outer circumferential surface and lower side slope 32a of the glass, thereby preventing the outer circumferential portion of the glass from becoming dirty. It is possible to mask parts.

There are various methods for forming the opaque portion 32b, such as printing, painting, and coating.

In addition, if there is a concern about baldness during glass pressing, the adhesion strength can be increased by inorganic printing, metal vapor deposition, etc.

In FIG. 4, the opaque treatment is applied to the lower slope of the side surface and the lower surface of the outer periphery of the glass, but the opaque portion may be applied to the entire surface or only partially as long as it is within the range of 32a.

Further, the opaque portion 32b generally has the same finish as the parting plate surface 33a when viewed from the top surface of the glass, but may have the same finish as the plastic gasket 34, or may have a completely different finish.

Although the conventional embodiment of the present invention has been described above, the present invention has a wide range of applications.
It is possible to apply two or more types of finishing or coloring when viewed from a plane, and furthermore, it is also possible to display characters such as a brand name, operation display, etc.

In this way, the present invention can also produce design effects by coloring the opaque parts.

Incidentally, the opaque portion 32b can also be considered as a parting plate that serves as a mask for the parting plate 33, and this can be effectively utilized.
By considering the combination of finish with the viewing board 33,
Three-dimensional design becomes possible.

This is a digital display type W that is said to tend to be monotonous.
This greatly contributes to improving the appearance of the glass part of the meter.

FIG. 5 shows another embodiment of the present invention, in which a glass 52
By forming the opaque portion 52a on itself, it has the role of masking the ugly portion on the outer periphery of the glass.

In this case as well, the opaque area can have two or more different color tones when viewed in plan, and it is also possible to create an interesting design by blurring the boundary with the transparent area.

An example of a method for forming the opaque portion 52a in FIG. 5 is as follows.

The glass 52 is a well-known photosensitive glass (for example, Ce is 0.0
3wt%, AU, Ag.

A resist film is formed on the inner part of the front and back surfaces of the glass (silicate glass containing approximately 0.3 wt% of Cu, Pd, etc., excluding the outer periphery that is desired to be opaque), and a mercury lamp ( 400℃,
When heated for 1 to 2 hours, the irradiated area develops color and becomes opaque.

Since the hue is similar to that of additives such as A uv A g r Cut P d, the degree of opacity can be increased by selecting an arbitrary value and increasing or decreasing the amount as appropriate.

In addition, using inorganic glass, the outer surface, side surface,
The opaque portion can also be formed by forming a metal film on the back surface and subjecting it to heat treatment.

FIG. 6 shows another example of application of the present invention, which is basically exactly the same as the case shown in FIG. It is characterized by having a partial structure as shown in 62a.

In this case, as in the case of Fig. 5, it is possible to create an interesting design.

According to the present invention, the appearance of the outer periphery of the glass can be greatly improved by the simple processing described above.

In other words, since the opaque portion is formed on the lower surface of the outer periphery of the glass and the lower slope of the side surface, the flat surface of the body below and the protruding portion caused by the cracking of the plastic packing are hidden, resulting in a clean appearance.Moreover, the outer peripheral protrusion of the parting plate Since the lower surface of the glass to be hit is the opaque portion, even if the contact between the outer protrusion and the lower surface of the glass is not uniform and interference fringes appear partially, it will be reliably hidden by the opaque portion and the appearance will not be impaired in any way. It's gone.

In this way, the present invention can be said to have a great effect on the exterior of future mobile watches, considering the increasing number of digital display type mobile watches and the like.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial sectional view showing the structure of a glass portion of a conventional portable watch, and FIG. 2 is a partial sectional view of a parting plate in the conventional portable watch shown in FIG. FIG. 3 is a partial cross-sectional view of the glass portion of a portable watch showing an embodiment of the present invention, and FIG. 4 is a partial cross-sectional view of the glass in the embodiment of the present invention shown in FIG. 5 and 6 are partial cross-sectional views of the glass of a portable watch showing an application example of the present invention. 31, 51, 61... Torso, 32, 52, 62.
...Glass, 33,53,63...Parting plate, 34°54,64...Plastic gasket, 32a...Bottom surface of outer periphery and lower slope of side surface of glass , 32b... Opaque part.

Claims (1)

[Scope of utility model registration request] The body and the glass are fixed via a plastic packing arranged with a tightness between them, and an opaque portion is formed on at least the lower slope of the lower outer periphery and side surfaces of the glass or on the outer periphery of the glass, and the lower outer periphery of the glass is fixed. A mobile phone characterized in that a parting plate is sandwiched between the upper surface of the body and the lower surface of the glass, and the outer peripheral projection is in contact with only the opaque part of the cell phone, and the inner part of the outer peripheral projection has a gap with the lower surface of the glass. Watch glass structure.