JPS58146Y2 - Exterior of electronic clock with calculator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of the glass portion of the exterior of a digital electronic timepiece that has a calculation function and displays a display using a liquid crystal or LED.

The purpose of the present invention will be explained using FIG.

FIG. 1 shows a plan view of a general electronic timepiece with a calculator, in which numeral 1 indicates the time, and numeral 2 indicates an arithmetic operation.

3 is a key, and calculations are performed by operating this key.

Further, numeral 4 is made of glass that covers the upper part of the movement, including the main part and the display part.

Reference numeral 5 denotes a body, which covers part of the upper surface of the glass and the periphery of the glass 4 of the display section.

The key 3 is inserted between the glass 4 and the barrel 5 and is housed in a state where it can be moved up and down.

If this structure is used, generally 20 to 30 key holes will be provided in the body and glass, but since the body is generally made of metal, drilling the holes takes time, and the glass In order to prevent scratches during use, it is desirable to use hard inorganic glass, but in this case, machining many small holes would be extremely costly as the material is difficult to machine.

Therefore, from a cost standpoint, it is necessary to use organic glass, which is softer than inorganic glass and more easily scratched, and to process it by injection molding to avoid high costs.

As described above, the conventional methods have the drawbacks of high cost and easy scratching of the glass.

The present invention aims to eliminate these drawbacks, and uses inorganic glass for the outside part of the glass, and organic glass for the keyhole and other parts, combining the good aspects of the two materials. It is something to do.

To explain one embodiment of the present invention, FIG. 2 shows a longitudinal sectional view.

Reference numeral 14 is a transparent organic glass that covers the entire upper part of the movement (10).

Reference numeral 16 denotes a keyboard made of an opaque material, which is placed over the organic glass 14 and engaged with the body 15 together with the collar of the organic glass, so that it will not come off from the body after assembly.

13 is a key, which is located between the organic glass and the keyboard.

Reference numeral 11 is a display member which is a part of the movement, and here the time and calculations are displayed.

Reference numeral 12 denotes an inorganic glass, which is provided on the upper part of the organic glass where the display member is located, and its outer circumferential portion engages with the inner circumferential portion of the keyboard to determine its vertical position.

Alternatively, the inorganic glass may be fixed by bonding the inorganic glass and the organic glass.

The keyboard 16 is made of metal, such as stainless steel,
By performing surface hardening on aluminum material by alumite treatment, the surface can be made hard and scratch-resistant.

In addition, as for the method of fixing the inorganic glass, as mentioned above, the method of sandwiching the keyboard and the organic glass or the method of gluing both glasses together has been described, but there is also a method of fixing the inorganic glass as shown in Fig. 3. The outer periphery of the inorganic glass 22 may be press-fitted and fixed, or this portion may be bonded.

Furthermore, when inorganic glass and organic glass are completely overlapped as shown in Figure 2, it is a more reliable method in terms of water resistance, but
If dirt gets between the two glasses during assembly, the transparency decreases, or the glass becomes thick due to processing or strength, organic glass should be installed only on the outer periphery of inorganic glass as shown in Figure 3. It is also possible to provide only inorganic glass on the member.

By using the keyboard, organic glass, and inorganic glass in this way, it is possible to make holes in the keyboard by press processing, and by making holes in the organic lath part, it can be easily processed by injection molding. This makes it extremely cost-effective.

In addition, as for preventing scratches on the outer surface of the glass, the use of inorganic glass makes it less likely to be scratched.

In terms of appearance, by using a keyboard that is separate from the body, a variety of colors and finishes can be used, allowing for a wide variety of designs.

As mentioned above, the present invention satisfies the design, appearance, and water resistance aspects of the exterior of an electronic watch with a calculator, can be manufactured at low cost, and is useful for a wide range of applications as it can prevent scratches on the exterior, and is highly effective. It is something that

The gist of the present invention is to use a hard transparent member with many holes on the outer surface, and the same effect can be obtained not only for electronic watches with calculators but also for the exteriors of electronic watches with general liquid crystal and LED displays. It will be done.

[Brief explanation of drawings]

FIG. 1 is a plan view of a general electronic timepiece with a calculator, and FIG. 2 is a longitudinal sectional view of an electronic timepiece with a calculator showing an embodiment of the present invention.
FIG. 3 is a partial vertical sectional view showing another embodiment of the present invention. 4...Glass, 14.24...Organic glass, 12,22...Inorganic glass, 3,13.
...Key, 16.26 ...Keyboard,
5.15...Body, 10...Movement, 11...Display member.

Claims (1)

[Scope of utility model registration request] A watch that has a calculation function, has multiple keyholes, and is made of organic glass that covers the movement.
An inorganic glass is placed on top of the organic glass on the upper surface where the member for displaying calculations, etc. is located, and a keyboard made of metal is placed on top of the organic glass, and the outer edge of the keyboard is attached to the body along with the organic glass flange. The keyboard is configured such that a key inserted into the key hole of organic glass is held between the organic glass and an inner peripheral part thereof covers an outer peripheral part of the inorganic glass. The exterior of the electronic clock.