JPS583531Y2 - Connection structure between watch case and band - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a connection structure between a wristwatch case and a band.

In a typical wristwatch, the end of the band is connected by a spring bar to a pair of legs called a breech formed on the outer surface of the case.

This connection structure is not only complicated and difficult to assemble, but also expensive.

Furthermore, if the case becomes thinner, it becomes difficult to provide a hole for attaching a spring bar to the main frame.

On the other hand, there is a connection structure in which a metal band such as a mesh band is directly fixed to the outer surface of the case by brazing.

This connection structure requires a high degree of skill in the brazing work, and the brazed portion may rust or discolor, making it unsightly.Furthermore, the band cannot be replaced.

The purpose of this invention is to not only simplify the structure and reduce costs by making it easy to assemble, but also to be able to adapt it to thin watch cases, to improve the appearance, and to maintain the direct connection appearance. To provide a connection structure between a watch case and a band, which allows the band to be replaced.

In order to achieve such an object, the present invention provides a connecting piece integrally protruding from the bottom side of the outer surface of the watch case, passing a connecting hole through the connecting piece, and protruding a locking piece at the tip on the back side of the band. The set tip is fixed, the tip is inserted into the connection hole, the end of the band is positioned on the connecting piece, and an elastic material is made of an elastic material between the back of the connecting piece and the locking piece of the tip, A locking member that is bifurcated and has a locking portion at its open end is inserted, and the upper portion of the locking piece at the tip is held between the locking members.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 and 2, the watch case 1 has a connecting piece 1b integrally protruding from the bottom side of the outer surface 1a of the band attachment portion.

A connecting hole 1C is passed through the connecting piece 1b, and this connecting hole 1C
Both sides are approximately circular, and there is a groove-like communication between them.

In the tip 2, a leg portion 2b is connected to the longitudinal center portion of the base portion 2a, and a substantially circular locking piece 2C is protruded from both sides of the lower end of the leg portion 2b.

The base plate 2a of the sharpener 2 is fixed to the back surface of the end of the band 3 by spot welding or the like.

The locking member 4 is formed of an elastic material into a bifurcated shape, and has a locking portion 4a protruding inward at the open end.

To connect the band 3 to the watch case 1, use the tip 1 scissors 2 fixed to the band 3 to connect the connecting piece 1 in the watch case 1.
The band 3 is inserted into the connecting hole 1C from above, and the end surface of the band 3 is brought into contact with the outer surface 1a and positioned on the connecting piece 1a.

After that, the locking member 4 is inserted in a wedge shape between the back surface of the connecting piece 1b and the locking piece 2C of the tip M2, and the locking piece is closed using the locking part 4a of the locking member 4. 2C upper leg 2
b is clamped to prevent the tip gun 2 from coming off from the connecting piece 1b.

Note that the connecting hole 1C of the connecting piece 1b and the locking piece 2C of the nose gun 2 are not limited to circular shapes, but may be square.

Further, the connecting holes 1C may be provided only on both sides, and in this case, the legs 2b of the nose gun 2 may also be provided only on both sides.

As is clear from the above, according to the present invention, the tip gun attached to the band is inserted into the connection hole formed in the connecting piece of the watch case, and a bifurcated shape is formed between the connecting piece and the locking part of the tip gun. By inserting the locking member, the band and the watch case can be connected, and no settling is required.

Therefore, the structure is simple, assembly is easy, and it can be provided at low cost.

Furthermore, since the locking member is inserted between the back surface of the connecting piece and the locking portion of the leading track for connection, it can be applied to thin watch cases.

Furthermore, since no brazing means is used, the appearance can be improved.

Furthermore, since the end surface of the band can be brought into contact with the side surface of the watch case, the appearance of a direct connection can be maintained and a simple design can be achieved.

Another advantage is that the band can be easily replaced by simply removing the locking member.

[Brief explanation of drawings]

1 and 2 show an embodiment of the connection structure of the present invention, with FIG. 1 being an exploded perspective view and FIG. 2 being a sectional view of the connected state. 1...Watch case, 1b...Connection piece,
1C... Connection hole, 2... Point, 2C.
... Locking piece, 3 ... Band, 4 ...
...Locking member.

Claims (1)

[Scope of utility model registration request] A connecting piece is integrally provided on the bottom side of the outer surface of the watch case, a connecting hole is passed through the connecting piece, and a tip scissor with a protruding locking piece on the tip is fixed on the back of the band, and the tip of the gun is attached to the back of the band. The band is inserted into the connection hole and the end of the band is positioned on the connection piece, and between the back surface of the connection piece and the locking piece of the tip gun, a locking part made of an elastic material and having a bifurcated shape is provided at the open end. A connection structure between a watch case and a band, characterized in that a locking member having a locking member is inserted, and an upper portion of a locking piece at a tip is held by the locking member.