JPS6139980Y2 - - Google Patents

Description

[Detailed description of the invention] The invention relates to providing elasticity to the register ring itself by forming the inner wall of the register ring provided on the outer periphery of the watch case into a substantially polygonal shape and by forming it from a soft material. .

Conventional register rings were as shown in FIGS. 1 to 4.

FIG. 1 is a diagram showing a first example of conventional registering.

1 indicates a watch case, 2 indicates a watch glass, and 3 indicates a register ring.

There is a protrusion 1a on the upper part of the watch case 1, and an annular groove 1c and a step 1b are provided below the protrusion 1a.

The register ring 3 has a U-shaped cross section and is arranged so as to hold the protrusion 1a of the watch case 1.

This rotation of the register ring 3 is suppressed by friction generated between the inner wall 3a of the register ring 3 and the vertical wall 1c' of the annular groove 1c of the watch case 1. In such a structure, if the register ring is used for a long time, the inner wall of the register ring and the vertical wall of the annular groove of the watch case will wear out, reducing the frictional force and allowing the register ring to rotate freely. It was hot.

FIG. 2 is a diagram showing a second example of conventional registering.

4 is a watch case, 5 is a watch glass, 6 is a register ring, and 7 is a wave spring.

The watch case 4 is provided with a step portion 4a for positioning the register ring 6, and an annular groove 4b is provided on the step portion 4a.
is provided.

Also, approximately in the center of the register ring 6 is an annular groove 6a that corresponds to the annular groove 4b of the watch case 4.
is provided.

The wave spring 7 is arranged between the annular groove 4b of the watch case 4 and the annular groove 6a of the register ring 6.
The shape of this wave spring 7 will be explained using FIG. 3.

FIG. 3 is a sectional view taken along the line AA of the conventional register ring shown in FIG.

The wave spring 7 is shaped so as to partially contact both the vertical wall 4b' of the annular groove 4b of the watch case 4 and the vertical wall 6a' of the annular groove 6a of the register ring 6.

The rotational movement of the register ring 6 is suppressed by the action of this wave spring.

In such a structure, the number of parts increases, leading to an increase in price.

FIG. 4 is a diagram showing a third example of conventional registering.

8 indicates a watch case, and 9 indicates a register ring.
The outer periphery of the watch case 8 is provided with unevenness 8a, which engages with a protrusion 9a provided on the inner periphery of the register ring 9.

The rotational movement of the register ring 9 is suppressed by the engagement of the projections 9a of the register ring 9 with the projections 9a of the watch case.

When the register ring in such a structure rotates, it rotates while swinging vertically and horizontally, resulting in a decrease in the accuracy of the register ring.
This invention eliminates the above drawbacks by making the inner wall of the register ring substantially polygonal so that it touches the vertical wall of the annular groove provided at the top of the watch case at several points, and by giving elasticity to the register ring itself. The purpose is to

The present invention will be explained using FIGS. 5 to 9.

FIG. 5 is a diagram showing a first embodiment of the present invention.

10 is a watch case, 11 is a watch glass, and 12 is a register ring of the present invention.

The watch case 10 has almost the same shape as the conventional watch case 1 shown in FIG.
a, a step portion 10b, and an annular groove 10c. The register ring 12 has a U-shaped cross section, and an inner wall 12a has a polygonal shape in plan.

FIG. 6 is a sectional view taken along line BB in FIG. 5. The inner wall 12a of the register ring 12 has a substantially triangular shape.

The inner wall 12a of the register ring 12 contacts the vertical wall 10c' of the annular groove 10c of the watch case 10 at three points.

The register ring 12 is made of a soft material such as plastic, and has elasticity because the inner wall 12a has a substantially triangular shape.

This register ring holds the watch case 10 due to its elasticity.

The register ring in the present invention is configured so that the frictional force at the contact point between the watch case and the register ring is always kept constant due to the elasticity of the register ring.

FIG. 7 is a diagram showing a second embodiment of the present invention.
Reference numeral 13 denotes a watch case, and a vertical wall 13a of an annular groove provided in the watch case is provided with unevenness 13a'.

14 is a register ring, and the inner wall 14a has a substantially triangular shape.

A protrusion 14b is provided at approximately the center of one side of the inner wall 14a having a substantially triangular shape.
is engaged in.

The rotation of the register ring in this embodiment is caused by the protrusion 14b of the register ring and the unevenness 1 of the watch case.
3a' is suppressed by engagement.

The register ring in this embodiment is made of a soft material as in the first embodiment, and has elasticity because the inner wall has a substantially triangular shape.
Therefore, when rotating, only the portion 14c of the register ring 14 having the protrusion 14b rotates while swinging.

Even when protrusions are provided on each side of the substantially triangular inner wall 14a of the register ring, each side of the register ring rotates while swinging, since the register ring has elasticity.

The overall movement of the register ring is as if it repeatedly expands and contracts outward and inward relative to the watch case.

In particular, each side of the register ring in this embodiment always moves in a direction perpendicular to the scale, so there is no deviation of the scale.

FIG. 8 is a diagram showing a third embodiment of the present invention.

The protrusion 15b provided on the inner wall 15a of the register ring 15 has an asymmetrical shape, and is formed to facilitate clockwise rotation when engaged with the unevenness of the watch case in the second embodiment. .

Moreover, the center part of each side of the substantially triangular inner wall 15a is the part that is most strongly pressed inward by the elasticity of the register ring, and if the protrusion 15b is in this part, it will be stronger when rotating the register ring. Power is required.

Therefore, by arranging the protrusion 15b at a location away from the center C of each side of the inner wall 15a, the rotation of the register ring can be made even smoother.

Conversely, by forming the unevenness of the watch case in the form of a ratchet consisting of asymmetrical teeth, it is also possible to facilitate rotation of the register ring in only one direction.

FIG. 9 is a diagram showing a fourth embodiment of the present invention.
Inner wall 16 of register ring 16 in this embodiment
a has a substantially rectangular shape.

Therefore, it contacts the vertical wall of the annular groove of the watch case at four points.

FIG. 10 is a diagram showing a fifth embodiment of the present invention. The inner wall of the register ring 17 in this embodiment also has a substantially rectangular shape, similar to the fourth embodiment. However, the inner wall in this embodiment has a substantially rectangular shape, and the inner wall 17a and the inner wall 17b have the same shape, and the inner wall 17c and the inner wall 17d have the same shape.

The planar length of the inner walls 17a and 17b is the inner wall 17.
It is formed to be longer than c and 17d.

Therefore, the watch case 18 has an inner wall 17a,
Only 17b is in contact.

In particular, since the inner walls 17a and 17b are arcuate, they have good centripetal properties and prevent the register ring from moving in parallel in the lateral direction.

Based on the above, the registering in this invention is
The register ring itself is made of soft material such as plastic and has a substantially polygonal shape, giving it elasticity.Furthermore, by making contact with the watch case at several points, frictional force is reduced over many years of use. can be prevented. Also,
It is easy to process and can provide inexpensive and stable register ring.

In particular, since a register ring having an elastic structure can be provided without using elastic members such as wave springs, the number of parts can be reduced.

Further, since the register ring of the present invention has an elastic structure, the accuracy of the shape of the inner wall, etc. is not much of a problem.

Furthermore, due to its elastic structure, it is easy to assemble and has good centripetal properties.

In this manner, the present invention provides inexpensive and stable registering.

[Brief description of the drawings]

Fig. 1 is a diagram showing a first example of a conventional register ring, Fig. 2 is a diagram showing a second example of a conventional register ring, and Fig. 3 is a cross section of the register ring shown in Fig. 2. 4 is a diagram showing a third example of a conventional register ring, FIG. 5 is a diagram showing a first embodiment of the present invention, and FIG. 6 is a sectional view taken along line BB in FIG. 5.
FIG. 7 is a diagram showing a second embodiment of the present invention, FIG. 8 is a diagram showing a third embodiment of the present invention, FIG. 9 is a diagram showing a fourth embodiment of the present invention, and FIG. 10 is a diagram showing a fourth embodiment of the present invention. FIG. 5 is a diagram showing a fifth embodiment. 1, 4, 8, 10, 13, 18... Watch case, 1c, 4b, 10c... Annular groove, 1c', 4
b', 8a, 10c', 13a... Vertical wall, 3, 6,
9, 12, 14, 15, 16, 17...Register ring, 3a, 12a, 14a, 15a, 16
a, 17a, 17b, 17c, 17d...inner wall,
8a, 13a'... unevenness, 9a, 14b, 15b...
…protrusion.

Claims (1)

[Claims for Utility Model Registration] (1) It has an inner wall that is substantially polygonal in plan and touches the vertical wall of the annular groove provided at the top of the watch case at two or more points, and is made of a soft material. A register ring for a timepiece, characterized in that it comes into elastic contact with the annular groove. (2) The register ring for a timepiece according to claim 1, wherein the inner wall has a substantially triangular shape. (3) The register ring for a timepiece according to claim 1, wherein the inner wall has a substantially rectangular shape. (4) The register ring for a watch according to claim 1, wherein the soft material is plastic. (5) The vertical wall of the annular groove of the watch case is provided with a large number of depressions and depressions, and the inner wall has a protrusion that engages with the depressions and depressions, Claim 1 of the Utility Model Registration Claim. Register ring for the watch listed. (6) The register ring for a timepiece according to claim 5, wherein the protrusion has a left-right asymmetrical shape. (7) The register ring for a timepiece according to claim 5, wherein the protrusion is provided at a position offset from the center of each side of the substantially polygonal inner wall.