JP2599894Y2 - Watch case structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a watch case structure.

[0002]

2. Description of the Related Art Conventionally, the structure of a watch case of this type is shown in the sectional view and plan view of Japanese Patent Application Laid-Open No. 55-63780 in FIGS.

[0003] Two or more locking portions 10 a provided on the lower surface of the upper body 10 are engaged with locking grooves 20 a provided on the inner wall of the body 20.
By inserting the upper torso 10 by rotating the upper torso 10 as shown in FIG. 9 and locking and fixing the upper torso 10 to the torso 20, the machine body 30 can be attached and detached from above.
The shape of the back side can be reduced without being affected by the shape of the
In addition, there are advantages that the body 20 can be made thin and a watch case with high commercial value can be provided.

[0004]

However, in this conventional structure, since the fixing of the body 20 and the upper body 10 is locked by the rotation of the upper body 10, the shape of the body 20 and the upper body 10 must be matched. However, there are disadvantages such as difficulty in rotating the upper body 10 due to impact.

An object of the present invention is to solve the above-mentioned drawbacks and to make the machine body detachable from above, so that the shape of the back side can be downsized without being affected by the shape of the upper body, and the body can be made smaller. It is easy to match the shape of the body and the upper body without losing the advantage of being able to look thin, and the upper body does not rotate due to impact, and it can be made thinner, increasing the commercial value It is an object of the present invention to provide a watch case structure as described above.

[0006]

The constitutional features of the present invention for achieving this object are as described in claim 1 of the utility model registration claim. In particular, "Auxiliary phosphorus
The protrusion 5b of the bracket 5 passes through the notch 3d of the peripheral wall 3b.
It is placed so that "is characterized. Depending on whether a configuration, in a state where the cylinder 4 and Uedo 3 were engaged and fixed, the protrusion 5b of the auxiliary ring 5 enters the notch 3d of the upper cylinder 3. Therefore, the projecting portion 5b of the auxiliary ring 5 and the biting portion 3c of the upper body 3 are arranged so as to be overlapped, and the timepiece case can be made thinner by the length in the vertical direction where the two overlap. According to claim 2 of the present invention, it is preferable that "the protruding portion 5b passing through the notch 3d is supported from below by the body 4". With this configuration, the auxiliary ring 5 holding the machine body 1 is reliably held in the vertical direction. In addition, according to the third aspect , the position of the auxiliary ring 5 is regulated in the radial direction, and rattling of the auxiliary ring 5 along the radial direction is suppressed. Further, according to claim 4, built-in the upper cylinder 3 is facilitated for cylinder 4.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional assembly view of a biting portion of the timepiece case of the present invention, FIG. 2 is a sectional assembly view of a notch portion, FIG. 3 is a plan view of a body, FIG. 5 is an arrow A in FIG.
FIG. 6 is a plan view of the auxiliary ring, and FIG. 7 is a sectional assembly view showing a positional relationship in an initial state where the upper trunk is incorporated into the trunk.

Reference numeral 1 denotes a mechanical body which is attached to and detached from above the watch case 2.

Reference numeral 2 denotes a watch case, an upper body 3, a body 4 and a machine body 1.
And an auxiliary ring 5 for holding the

Reference numeral 3 denotes an upper body, a glass fixing portion 3a on the upper side, a peripheral wall 3b on the lower side, and two or more biting portions 3c on the outer wall of the peripheral wall 3b. Notch 3 in the wall 3b
d is formed. The biting portion 3c formed on the peripheral wall 3b has an inclined portion 3e inclined downward and inward from the outside of the biting portion 3c, and a guide portion 3f extending downward from the inclined portion 3e. May be provided.

Reference numeral 4 denotes a body having an inner peripheral wall 4a formed with a biting groove 4b with which a biting portion 3c is engaged, and a biting groove 4b is not formed in a portion opposed to the notch 3d, and an auxiliary portion is formed inside. Ring 5
And the bite portion 3c of the upper body 3 is fixedly engaged with the bite groove 4b to form the watch case 2. Result, torso 4
Is opposed to the biting portion 3c of the upper trunk 3
The biting groove 4b is formed only at the place.

Reference numeral 5 denotes an auxiliary ring, which is a holding portion 5a for holding the machine body 1 therein and a projecting portion 5 which engages with the notch 3d of the upper body 3.
b, the radial position is regulated by contacting the tip of the projection 5b with the inner peripheral wall 4a of the body 4 or the outer periphery of the auxiliary ring 5 with the inner wall of the peripheral wall 3b of the upper body 3. This is done by causing

Next, a method of assembling the watch case 2 according to the present invention will be described. The protrusion 5b of the auxiliary ring 5 is positioned and inserted and fixed from above to a portion where the biting groove 4b is not formed in the inner peripheral wall 4a of the body 4, and the auxiliary ring 5 is fixed.
Is regulated in the radial direction. Next, after inserting and fixing the machine body 1 to the holding portion 5a of the auxiliary ring 5, the upper body 3 is positioned so that the protrusion 5b of the auxiliary ring 5 enters the cutout 3d of the upper body 3, and the upper body 3 is positioned. It can be assembled by pressing from above and engaging the biting portion 3c with the biting groove 4b of the body 4. At this time, the protrusion 5b that has passed through the cutout 3d is
4 supported from below. After inserting and fixing the machine body 1 to the holding portion 5 a of the auxiliary ring 5, the auxiliary ring 5 is attached to the body 4.
May be incorporated. Also, as shown in FIG. 7, an inclined portion 3e inclined downward and inward from the outside of the biting portion 3c of the upper body 3.
And a guide portion 3f extending downward from the inclined portion 3e.
Is inserted into the inner peripheral wall 4a of the body 4, the positional relationship between the upper body 3 and the body 4 is stabilized, the assembling is facilitated, and the positioning is facilitated. Further, the position of the auxiliary ring 5 in the radial direction is regulated by adjusting the outer peripheral portion of the auxiliary ring 5 to the peripheral wall 3b of the upper body 3.
May be brought into contact with the inner wall of the vehicle.

[0014]

According to the present invention, as described above, the mechanical body 1
Can be attached and detached from above, so that the shape of the back side can be reduced without being influenced by the shape of the upper body 3 and the shape of the body 4 can be reduced.
The shape of the body 4 and the upper body 3 can be easily adjusted without impairing the advantage that the
Are not rotated by an impact, are made thinner, and have an effect of increasing the commercial value.

[Brief description of the drawings]

FIG. 1 is a sectional view of a bite portion of a watch case according to an embodiment of the present invention.

FIG. 2 is a sectional assembly view of a notch.

FIG. 3 is a plan view of a trunk.

FIG. 4 is a bottom plan view of the upper trunk.

FIG. 5 is a diagram viewed from the arrow A in FIG. 4;

FIG. 6 is a plan view of an auxiliary ring.

FIG. 7 is a sectional view showing a positional relationship in an initial state in which the upper trunk is incorporated into the trunk.

FIG. 8 is an assembled sectional view of a general structure of a watch case structure of this type in a conventional example.

FIG. 9 is a plan view of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Machine body 2 Watch case 3 Upper trunk 3a Glass fixing part 3b Peripheral wall 3c Biting part 3d Notch part 3e Inclined part 3f Guide part 4 Trunk 4a Inner peripheral wall 4b Biting groove 5 Auxiliary ring 5a Holding part 5b Projecting part

Claims (4)

(57) [Scope of request for utility model registration] 1. A timepiece case structure including an upper body 3, a body 4, and an auxiliary ring 5 for holding the machine body 1, comprising a peripheral wall 3b formed below the upper body 3; Two or more biting portions 3c formed on the outer wall of the wall 3b
A notch 3d formed in the peripheral wall 3b, a biting groove 4b formed in the inner peripheral wall 4a of the body 4, and an auxiliary ring 5 formed between the biting portion 3c. And an auxiliary ring 5 is provided inside the body 4, and a biting groove 4 b of the body 4 is provided.
In the state where the biting portion 3c of the upper body 3 is engaged and fixed, the protruding portion 5b of the auxiliary ring 5 is notched 3d of the peripheral wall 3b.
A watch case structure characterized by being arranged to pass through. 2. The watch case structure according to claim 1 , wherein the projecting portion 5b passing through the notch 3d is supported by the body 4 from below. 3. An end of the projecting portion 5b of the auxiliary ring 5 is brought into contact with the inner peripheral wall 4a of the body 4, or the auxiliary ring 5
The outer peripheral portion by either be brought into contact with the inner wall of the circumferential wall 3b of the upper torso 3, the watch case according to claim 1 or 2, auxiliary ring 5 is restricted in position in the radial direction of the Construction. 4. A peripheral wall 3b of the upper trunk 3 has an inclined portion 3e inclined downward and inward from the outside of the biting portion 3c, and a guide portion 3f extending downward from the inclined portion 3e. The structure of the watch case according to claim 1, comprising: