JPS635018Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for connecting frames of watches and the like.

Conventionally, in a frame body such as a stone frame or glass frame, the endpaper faces the front from the front, the back cover faces the back, and the endpaper and back cover are screwed together. Because of the poor quality, we are paying a large amount of money. In particular, when the size of the stone frame is large, the tightening margin becomes large, which causes the back cover to deform when tightening the screws, and this makes it difficult to open and close the battery cover. Furthermore, precision was required for dimensional control of the tightening margin.

The present invention eliminates the above-mentioned drawbacks, and even if the dimensional control of the tightening allowance is relatively rough, it is possible to prevent the frame from wobbling, and even if the tightening allowance becomes large, it can be absorbed around the mounting part, and the mounting The frame bodies other than the above-mentioned portions provide a joint structure of the frame bodies that does not cause deformation.

Embodiments of the present invention will be described in detail below.

In Figures 1 to 3, 1 is the frame of the clock;
The endpaper 3 is brought into contact with the center hole 2a of the frame 2 made of stone, wood, glass, etc. from the front, and the back cover 4 is brought into contact with the back cover 4 from the rear. . . . are screwed together with screws 5 . Around the attachment part 3a of the endpaper 3, three circumferential grooves 6, 6, 6 are formed from the front, and circumferential grooves 6, 6, 6 are formed from the rear corresponding to the gaps between the grooves 6, 6, 6. The grooves 7, 7 are formed double. Therefore, the periphery of the attachment portion 3a becomes a thin wall portion 9, and the attachment portion 3a can be elastically deformed in the front-rear direction.
The attachment portion 3a of the endpaper 3 and the attachment portion 4a of the back cover 4 are opposed to each other with a tightening margin 8. A dial plate 10 is attached to the endpaper 3. 11 is a front glass, which is attached to the endpaper 3 by a glass edge 12. Reference numeral 13 denotes a watch mechanical body, and a pointer 14 is attached to its pointer shaft. Reference numeral 15 denotes a small battery cover, which is detachably attached to the back cover 4.

When assembling this frame 1, the watch mechanical body 1
3. The endpaper 3 with the pointer 14 attached and the front glass 11 attached at the glass edge 12 is brought into contact with the frame 2 from the front, and the back cover 4 is brought into contact with it from the rear. At this time, the attachment part 3a of the endpaper 3 and the attachment part 4a of the back cover 4
They face each other with a tightening margin 8, but if the frame 2 is made of stone, glass, etc. and has poor dimensional accuracy, the clamping margin 8 will vary. However, there are circumferential grooves 6, 6, 6, 7, 7 around the mounting part 3a.
A thin wall portion 9 is formed, and the mounting portion 3a is attached to the back cover 4.
Since it can be elastically deformed in the direction, variations in the tightening margin 8 can be absorbed. For example, if the width of frame 2 is large,
When the tightening allowance 8 increases, when the screw 5 is tightened, the mounting part 3a is elastically deformed in the direction of the back cover 4 at the thin wall part 9 around the mounting part 3a, and the frame 2, endpaper 3, and back cover 4 are are bonded with appropriate contact pressure and are not deformed. Therefore, the attachment and detachment of the battery cover 15 will not become difficult.

In this embodiment, the endpaper 3 and the back cover 4 are connected by screws 5, but as shown in FIG. A claw 17a may be formed and the two may be connected together.

Further, although the plurality of grooves 6 and 7 are shown as having a circumferential shape, they may be in a circular shape such as a square shape, and may also be formed around the mounting portion 4a of the back cover 4 to provide a thin wall portion.

Furthermore, the plurality of circumferential grooves may be formed only from one side to form a thin wall portion.

As described above, according to the present invention, the size of the interference for joining the frames can be controlled relatively loosely. Therefore, even if frames with poor dimensional accuracy, such as stone frames or glass frames, are not deformed, the frames can be joined with appropriate contact pressure. In addition, the elastically deformable thin wall portion is formed by a circumferential groove and is elastically deformed over a wide area, so it is resistant to deformation due to creep and the contact pressure of the frame is stable for a long period of time.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is an enlarged sectional view of main parts, Fig. 3 is a right side view of Fig. 2, and Fig. 4 is a sectional view of an embodiment of the present invention.
The figure is an enlarged sectional view of a main part of another embodiment. 1... Frame body, 2... Frame, 3... Endpaper, 4...
Back cover, 3a, 4a...Mounting part, 6, 7...Groove, 9
... Thin wall part, 16, 17 ... Frame, 16a, 17a
...Mounting part.

Claims (1)

[Claims for Utility Model Registration] (1) In a frame that connects at least two frames via attachment parts, a plurality of circumferential grooves are provided around the attachment part of at least one frame, A structure for connecting frames, characterized in that the mounting portion is elastically deformable in the direction of opposing frames when the frames are connected. (2) In claim 1 of the utility model registration claim, the plurality of grooves are formed from both sides of the frame around the attachment part, and the grooves are formed from the other side opposite to the gaps between the plurality of grooves formed from one side. A joint structure of a frame body, characterized in that: