JPH0323590Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a thin clock such as a wall clock.

(Prior art) As one of the most well-known structures of wall clocks, a dial is placed in front of the mounting plate of the capsule that houses the clock mechanism, for example, in front of the rear frame, and a transparent plate is placed in front of the dial. Some models have a front cover with a pointer between the front cover and the dial.

By the way, in recent years, the demand for watches that are lighter, thinner, and smaller has increased, and making watches thinner has become an extremely important technical issue.For example, wall clocks that are less than 1 cm are now appearing. Therefore, the distance between the dial and the front cover and the distance between the dial and the mounting plate of the watch mechanism are extremely narrow. For example, the distance between the dial and the front cover is about 2 to 3 mm. Furthermore, the front cover, dial plate, mounting plate, and other points themselves are extremely thin as long as they do not affect their strength.

(Problem that the invention aims to solve) However, due to the extremely thin structure of the watch, there is a high risk that the mounting plate and front cover will easily deform due to temperature deformation, pressure during operation, etc. The cover may push the minute hand, causing the minute hand to stop interlocking with the minute hand axis, or the front cover to be scratched by the minute hand, or in the worst case scenario, the watch to stop. It turns out.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a thin watch that can maintain a constant gap between the front cover and the dial even if the front cover and the mounting plate of the watch mechanical body are deformed.

(Means for solving the problem) The features of the present invention include a mounting plate to which the capsule containing the clock movement is fixed, and a time display placed in front of the mounting plate. A dial plate having an index indicating the dial, a transparent front cover disposed at a predetermined distance in front of the dial plate, and a transparent front cover disposed at a predetermined distance in front of the dial plate; The height of the indicator from the dial is such that the indicator functions as a spacer to maintain the gap between the front cover and the dial. It is located approximately equal to the gap.

(Function) Therefore, even if the front cover is deformed by temperature or external force, or pressurized during operation, the spacer function of the index will keep the gap between the front cover and the dial constant. The pointer never touches the front cover.

(Example) An example of the present invention will be described below with reference to the drawings.

The thin watch according to the present invention is shown in Figures 1 and 2.
As shown in the figure, a dial plate 2 is located in front of a mounting plate 1 which also serves as a rear frame, and a thin transparent front cover 3 is disposed in front of the dial plate with a narrow gap therebetween. A capsule 4 containing a watch mechanism body is attached to the center of the back of the mounting plate 1, and is positioned within the gap between the dial plate 2 and the front cover 3. The minute hand 5 and hour hand 6 are rotated.

As shown in the first figure, on the front cover 3, decorative buttons 7 are attached from the front at locations corresponding to the display positions of the time scale "12, 3, 6, 9".
As shown in the second figure, the decorative button 7 has a female screw carved in the center of the rear end surface, and this screw has a
The front cover 3 and the mounting plate 1 are strongly connected with the dial plate 2 interposed therebetween by screwing in the male screw 8 inserted from the back side of the mounting plate 1.

Further, as shown in the first diagram, indicators 9 are inserted into the dial 2 at each of the time scales "1, 2, 4, 5, 7, 8, 10, 11". The position of this indicator is desirably close to the locus of the tip of the pointer, as long as it does not interfere with the rotation of the pointers 5, 6.

As shown in FIG. 3, the dial 2 is provided with a through hole 2a, into which a small diameter leg 9a formed on a stepped index 9 is press-fitted from the front. There is. The leg portions 9a are provided with grooves in the axial direction thereof, and have elastic force so as to open outward. The mounting plate 1 is integrally formed with a hollow support protrusion 1a into which the leg portion 9a of the index 9 is press-fitted at a position facing the through hole 2a of the dial plate 2, and the front end surface of this protrusion is It is in contact with or close to the back surface of the dial plate 2.

The height of the head of the index 9 protruding from the dial 2 is
The gap between the front cover 3 and the dial plate 2 is approximately equal to or the same as the gap between the front cover 3 and the dial plate 2, and the length of the leg portion 9a is such that it can penetrate the dial plate 2 and come into contact with the mounting plate 1. . Therefore, the upper end of the indicator 9 is in contact with the front cover 3, and the lower end surface of the leg portion 9a is also in contact with the mounting plate 1.

Therefore, even if the front cover 3 tries to deform due to temperature deformation or pressure applied during operation, the index 9 and its legs 9a will prevent the gap between the front cover and the dial 2 and between the dial 2 and the mounting plate 1. The gap between the dial plate 2 and the dial plate 2 is regulated to be constant, so that the dial plate 2 is not deformed.

Further, the same effect as described above can be obtained even if the front end surface of the indicator 9 and the rear end surface of the leg portion 9a thereof are arranged close to the front cover 3 and the mounting plate 1 with a small clearance.

FIG. 4 shows another embodiment, in which a stepped support column 11a is integrally formed on the mounting plate 11, and a small diameter indicator portion 11b is formed at the tip of this indicator. This indicator is located on the dial 12.
The front cover 13 passes through the through hole 12a, and its end surface contacts or is close to the front cover 13. Note that the position of this index portion 11b is substantially the same as in the previous embodiment.

FIG. 5 and FIG. 6 show still another embodiment, in which the mounting plate 21 has support protrusions 21 which are locking parts at three different distances outward from the center of the mounting plate 21.
a, 21b, and 21c are integrally formed, and a small-diameter leg 29a of the indicator 29 can be inserted into the hollow portion of this support projection. As shown in Figure 6, a dial plate 22 is located on the open end surface of the support protrusion of the mounting plate 21, and a through hole 22a is bored in this dial plate. The front cover 23 is positioned with a gap.

Therefore, the structure of the dial 22 consists of the supporting protrusions 21
The position of the through hole 22a in the dial plate can be changed in accordance with the formation position of a to 21c, increasing the degree of freedom in design and realizing versatility of the dial plate. The front end surfaces of the indicators 29 inserted into the support projections 21a to 21c can come into contact with the front cover 23.

(Effect of the invention) Since the present invention has the above-described structure, even if the front cover tries to deform due to temperature, external force, etc., the gap between the front cover and the dial is maintained by the spacer function of the index. This prevents the front cover from coming into contact with the pointer, thereby preventing the pointer from scratching the front cover and causing the watch to stop operating. In particular, since the index is located at the display position of the time scale, it is close to the trajectory of the tip of the pointer, and therefore maximizes its function as a spacer that maintains the gap between the front cover and the dial. Furthermore, the index can have a design effect as a three-dimensional character.

[Brief explanation of the drawing]

Fig. 1 is a front view of the watch, Fig. 2 is a partially cutaway enlarged sectional view, Fig. 3 is an enlarged sectional view of the main part, Fig. 4 is an enlarged sectional view of the main part showing another embodiment, and Fig. 5 , 6th
The figures show still another embodiment, and FIG. 5 is a partially cutaway front view, and FIG. 6 is an enlarged sectional view taken along the line of FIG. 5. 1, 11, 21...Mounting plate for watch mechanical body, 1a
... Support protrusion, 2, 12, 22 ... Dial plate, 3,
13, 23...Front cover, 4...Capsule with built-in watch mechanical body, 5, 6...Pointer, 9...Indicator, 11b...Indicator part, 21a, 21b, 21c
...Locking part, 29...Indicator.

Claims (1)

[Scope of claim for utility model registration] 1. A capsule containing a clock movement, a mounting plate to which this capsule is fixed,
A dial plate is placed in front of this mounting plate and has an index indicating the time on the front side, a transparent front cover is placed in front of this dial plate at a predetermined interval, and this front cover In a timepiece having a pointer located within a gap between the dial and the pointer driven by the movement, the height of the pointer from the dial is such that the pointer functions as a spacer to maintain the gap. A thin watch characterized in that the gap between the front cover and the dial plate is approximately equal to the gap between the front cover and the dial plate. 2. A thin watch as set forth in claim 1 of the utility model registration claim, characterized in that the indicator is formed integrally with the mounting plate. 3. Claims for Utility Model Registration, Paragraph 1, are characterized in that the indicators are selectively attachable to locking parts provided at multiple locations at different distances outward from the center of the rear frame. Thin watch.