JPH1048350A - Fitting structure for front plate of watch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the dislocation of the center position of a wooden frame caused by its dimensional dispersion, or its splitting by forming tonguelike parts having a springlike property by forming notches in the peripheral part of a front plate. SOLUTION: On the occasion of fitting a front plate 10 to a wooden frame 14, intruding parts 10f intrude the inner circumferential surface 14b of a wooden frame 14, and fill up the gap between the inner circumferential surface 14b of the wooden frame 14 and the outer circumferential surface 10a of the front plate 10. At this time, tonguelike parts 10e bend inside properly by their springlike property, and prevent the excessive intrusion of the intruding parts 10f into the wooden frame 14 by the dimensional dispersion between the inner circumferential surface 14b of the wooden frame 14 and the outer circumferential part 10a of the front plate 10, and the application of an excessive stress to the wooden frame 14. Besides, it is possible to adjust the center of the wooden frame 14 to that of the front plate 10 easily, since the tonguelike parts 10e and the intruding parts 10f provided in the peripheral part 10a intrude into the wooden frame 14 and bend so as to correspond to the dispersion of gap dimensions respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a front panel mounting structure for a wooden frame timepiece in which a front panel is mounted on a wooden frame and a mechanical body is mounted on the front panel.

[0002]

2. Description of the Related Art A conventional mounting structure of a front plate of this type of timepiece is as shown in FIGS. That is, as shown in FIGS. 6 and 7, the conventional front plate 2 has an outer peripheral portion 2a which is bent in a substantially V shape and protrudes forward in the clockwise direction (upward in the drawing) on the outer periphery thereof. 2a outer surface 2
b has a wedge-shaped biting portion 2c.
It has a fixed portion 2d that is bent outward at a substantially right angle from the end of “a”. In order to attach the front plate 2 to the wooden frame 4, the outer peripheral portion 2a is fitted into the wooden frame 4 from behind (downward in the figure) the wooden frame 4, and at this time, the glass 6 is attached to the front end of the outer peripheral portion 2a and the wooden frame. 4
And a screw 8 is fixed to the wooden frame 4 via the hole 2e of the fixing portion 2d.

Usually, the gap G between the inner peripheral surface of the wooden frame 4 and the outer peripheral portion 2a of the front plate 2 due to the processing and shrinkage of the wood has a variation of about 0 to 2.5 mm with respect to the set dimensions. Occurs. If such a variation is left as it is, the center of the wooden frame 4 and the center of the front plate 2 fitted in the wooden frame 4 will be shifted. For this reason, it was desired to reduce the variation of the gap G, but it was extremely difficult. Therefore, conventionally, a biting portion 2c was provided on the outer peripheral portion 2a of the front plate 2 to reduce the variation of the gap G. The center of the wooden frame 4 and the center of the front plate 2 are adjusted by adjusting the bite amount of the portion 2c. The biting portion 2c also has a function as a temporary fixing until the wooden frame 4 and the front plate 2 are fixed with the screws 8.

[0004]

In the above conventional mounting structure for a front plate, when the actual size of the gap G is smaller than the set size due to the variation of the gap G, the biting amount of the biting portion 2c is increased. It is necessary. In this case, the stress applied to the wooden frame 4 becomes excessive, and the bonding portion of the wooden frame 4 may be broken, or the front plate 2 may be deformed and the center position may be shifted.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems of the prior art, and has as its object to prevent the center position from being shifted due to the variation in the dimensions of the wooden frame and the cracking of the wooden frame, and to reduce the variation in the larger dimensions. It is an object of the present invention to provide a watch front plate mounting structure that can be used.

[0006]

According to the present invention, there is provided a timepiece mounting structure for a timepiece having a front plate attached to a wooden frame, wherein a tongue having a spring property is provided on an outer peripheral portion of the front plate abutting on the wooden frame. A front plate is attached to the wooden frame without gaps by providing a tongue-shaped part and biting a part formed in the tongue-shaped part into the wooden frame.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the front plate mounting structure of the present invention, a tongue portion having a spring property is formed by making a cut in the outer peripheral portion of the front plate. Also,
A biting portion is formed on the outer surface of the tongue.
Since the bite portion is provided in the tongue portion having a spring property, when the front plate is fitted into the wooden frame to cause the bite portion to bite into the wooden frame, excessive stress is generated due to the spring property of the tongue portion. It is possible to prevent the wooden frame from being caught.

[0008]

FIG. 1 is a cross-sectional view showing a timepiece front plate mounting structure according to an embodiment of the present invention. FIGS. 2 and 3 are views of the front plate shown in FIG. FIG. 4 shows the front plate A shown in FIG.
FIG. 5 is a perspective view of a main part of the front plate shown in FIG. 2 and the like.

The front plate 10 shown in FIG. 1 and the like has a substantially plate shape made of a hard plastic or the like, and its outer periphery is bent in a substantially V-shape similar to the above-described conventional example to be forward of the clock (see FIG. 1). An outer peripheral portion 10a protruding upward is provided. The outer wall 10b of the outer peripheral portion 10a is formed to have a spring property by separating the rear end from the outer peripheral portion 10a by two cuts 10c and 10d formed from the clockwise rear (lower in FIG. 2). A tongue 10e is provided. A wedge-shaped biting portion 10f is provided on the outer surface of the tongue-shaped portion 10e. Further, the outer peripheral portion 1
At the end of the outer wall 10b, a fixed portion 10g which is bent substantially perpendicularly and outwardly is provided.
g has a hole 10h into which the screw 12 is inserted. The tongue 10e and the bite 10f are connected to the front plate 10
Are formed in a well-balanced outer peripheral portion 10a, and the number thereof can be arbitrarily set according to the shape and size of the wooden frame 14.

In order to attach the front plate 10 to the wooden frame 14, the outer peripheral portion 10a is fitted into the wooden frame 4 from behind (lower in FIG. 1) the wooden frame 14 as in the above-described conventional example. The glass 16 is sandwiched between the front end of the outer peripheral portion 10a and the flange portion 14a of the wooden frame 14, and is further fixed to the wooden frame 14 with the screw 12 through the hole 10h of the fixing portion 10g. When the front plate 10 is attached to the wooden frame 14 in this manner, the biting portion 10f bites into the inner peripheral surface 14b of the wooden frame 14 and
The gap between the inner peripheral surface 14b of the front plate 4 and the outer peripheral portion 10a of the front plate 10 is filled. At this time, the tongue-like portion 10e bends moderately inward due to its spring property, and excessively bites due to the variation in dimensions between the inner peripheral surface 14b of the wooden frame 14 and the outer peripheral portion 10a of the front plate 10. 10 f prevents the wooden frame 14 from digging into the wooden frame 14 and applying excessive stress to the wooden frame 14. Further, the plurality of tongue-shaped portions 10e and the biting portion 10f provided on the outer peripheral portion 10a bite into the wooden frame 14 and bend so as to correspond to variations in the gap size. For this reason, even when the variation of the gap size is different in each direction of the entire circumference, the tongue portion 10e and the biting portion 10f correspond to each other, and the center of the wooden frame 14 and the center of the front plate 10 can be easily aligned. It is possible. Further, since a plurality of tongue-shaped portions 10e of the same shape are arranged in a well-balanced manner on the outer peripheral portion 10a, the pressure of the tongue-shaped portion 10e and the pressure of the wooden frame 14 are all in a uniform state. The center of the wooden frame 14 and the center of the front plate 10 can be adjusted without damaging the wooden frame 10.

[0011]

According to the present invention, since the biting portion that cuts into the wooden frame is provided on the outer surface of the tongue portion having the spring property, the stress applied to the wooden frame by the biting portion can be reduced. It is possible to prevent the wooden frame from cracking and easily align the center of the wooden frame with the front plate.

Further, since a plurality of tongue-shaped portions of the same shape are arranged on the outer peripheral portion in a well-balanced manner, the pressure of the tongue-shaped portion and the pressure of the wooden frame are all in a uniform state. The center of the wooden frame and the front panel can be adjusted without damage.

[0013] Further, not only the amount of the biting portion but also the variation in the gap between the wooden frame and the front plate can be adjusted within the range in which the tongue can be bent, thereby coping with the variation of a larger dimension. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a watch front plate mounting structure according to an embodiment of the present invention.

FIG. 2 is a view of the front plate shown in FIG.

FIG. 3 is a view of the front plate shown in FIG.

FIG. 4 is a sectional view of the front plate taken along line AA of FIG. 3;

FIG. 5 is a perspective view of a main part of the front plate shown in FIG. 2 and the like.

FIG. 6 is a sectional view showing a conventional watch front plate mounting structure.

FIG. 7 is a perspective view of a main part of the front plate shown in FIG. 6;

[Explanation of symbols]

 Reference Signs List 10 front plate 10a outer peripheral portion 10b outer side wall 10e tongue portion 10f biting portion 14 wooden frame

Claims (1)

[Claims] 1. A wooden frame timepiece in which a front plate is attached to a wooden frame, wherein a tongue portion having a spring property is provided on an outer peripheral portion of the front plate abutting on the wooden frame, and a biting portion formed in the tongue portion is provided. A front plate is attached to the wooden frame without any gap by making the wooden frame cut into the wooden frame.