JPS6346861Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a structure for fixing an analog watch face and a watch board.

[Conventional technology]

The dial fixing structure of conventional analog watches is such that the integrally molded dial passes through the indicator shaft and is sandwiched between the watch base plate and the indicator needle, and a plurality of dials are welded to the back of the dial. The protrusion was inserted into the watch board and fixed with screws.

[Problem that the invention attempts to solve]

In recent years, as the lifespan and reliability of watches have improved, there has been an increasing need to replace dials mid-way, which is an important point in the design field.However, in the conventional technology described above, many parts are disassembled when replacing dials. In particular, it is difficult to easily remove and attach the indicator needle, which is particularly prone to failure and difficult to adjust. Therefore, this invention aims to solve these problems.
The purpose is to provide a structure in which the dial plate can be easily replaced while the pointer remains set on the pointer shaft.

[Means for solving problems]

The dial fixing structure of the analog watch of the present invention includes a dial plate 1 consisting of a plurality of multi-divided dial pieces 1a and 1b, an indicator hand 3 arranged above the dial plate 1 and indicating the time, a fixed bush 5 arranged below the dial plate 1 and formed with a plurality of protrusions 5a that protrude downward and have a hole 5b in the center;
A watch base plate 2 is disposed below the fixed bushing 5 and has an engagement hole 2a into which the protrusion 5a is inserted, and a watch base plate 2 is disposed on the upper surface of the dial plate 1 and protrudes from the lower surface thereof. A protruding pin 4a passes through locking holes 1c, 1c provided near the dividing portions of the dial pieces 1a, 1b, and further includes a connecting pin 4 that is press-fitted into the hole 5b of the protrusion 5a. However, the indicator shaft 6 to which the indicator hand 3 is attached is sandwiched between the dial pieces 1a and 1b in the plane direction, and the connecting pin 4 is connected to the time display scale position of the dial plate 1. It is characterized by being located in

〔Example〕

The present invention will be described in detail below based on embodiments. FIG. 1 is a schematic diagram of the main parts of a fixed structure in which the dial is divided into two in the 12-6 o'clock direction. Figure 2 is the first
It is an AA sectional view of the figure. In each figure, 1 is a dial, 2 is a watch board, 3 is an indicator hand, 4 is a joint pin for fixing the dial 1 and the watch board 2, and 5 is a fixing bush. In addition, the connecting pin 4 is connected to the adjacent dial pieces 1a and 1b by dividing the dial into two parts.
One joining pin has two protruding pins 4a in order to join the two, and the protruding pin 4a loosely fits into the locking hole 1c of the dial plate 1, and fits into the hole 5b of the fixed bush 5. has an appropriate tightening allowance to ensure the necessary fixing force. Similarly, fixed button 5
It also has two protrusions 5a, and the fitting between these protrusions 5a and the engagement hole 2a of the watch base plate 2 has an appropriate tightening margin to ensure the necessary fixing force.

Further, the dial pieces 1a and 1b are adjacent to each other across the indicator shaft 6 in the plane direction, and the connecting pin 4
The locking hole 1c of the dial plate 1 through which the protruding pin 4a is inserted
The hole position is set to correspond to the time display scale position.

To disassemble the dial 1, first, with the indicator 3 still set on the indicator shaft 6, remove the connecting pin 4.
The protruding pin 4a is pulled upward from the hole 5b of the fixing bush 5, and the dial pieces 1a and 1b are pulled out laterally. Finally, the protrusion 5a of the fixing bush 5 is pulled out from the engagement hole 2a of the watch base plate 2 to remove it. In addition, the method of attaching the dial plate 1 is to connect the protrusion 5a of the fixed bushing 5 to the engagement hole 2 of the watch board 2.
a, insert the dial pieces 1a and 1b from the lateral direction, align the locking hole 1c of the dial plate 1 with the hole 5b of the fixing bush 5 in a plane, position it, and then insert the joint pin 4 into the dial plate 1. Press-fit and lock from above.

Therefore, the dial plate 1 can be easily attached to the watch base plate 2 while the pointer hand 3 remains set on the pointer shaft 6. In addition, using two joining pins 4, dial pieces 1a and 1 are attached at two locations at 6 o'clock and 12 o'clock.
Since the pointer b is fixed, the indicated position of the pointer hand 3 does not shift on the dial 1. Furthermore, the number of divisions and the direction of division are not limited to those of this embodiment.

[Effect of idea]

As described above, according to the present invention, the dial is divided, a fixing bush is provided between the dial and the watch board, and it is fixed with a joint pin, so that the indicator hand can remain set. In this state, the multi-divided dial can be inserted and removed from the side between the indicator hands and the watch board by simply removing the fixing bushings and connecting pins, making it easy to replace the dial. In addition, the fixing part has a structure in which a joining pin is press-fitted into an engagement hole provided on the watch board, so the position of the watch board and dial will not shift, and the indicator hand will not touch the shaft. The indicated position of the indicator needle is also accurate. Furthermore, since the joining pins are arranged at the scale positions for time display on the dial plate, they can also be used as typesetting or various marks by considering the shape, size, etc. In addition, from a design standpoint, the number of divisions of the dial can be freely set, and the joining pins and fixing buttons can be connected in a circular manner so that the multi-divided dial can be fixed with one joining pin and fixing button. We can provide watches with a wide variety of designs.

[Brief explanation of the drawing]

FIG. 1 is a sketch of the main parts of the present invention. FIG. 2 is a sectional view taken along the line AA in FIG. 1. 1... Dial plate, 1a... Dial plate piece, 1b... Dial plate piece, 1c... Locking hole, 2... Watch board, 2a
...Engagement hole, 3...Indicator needle, 4...Joining pin, 4
a...Protruding pin, 5...Fixing button, 5a...
Projection, 5b...hole, 6...indicator needle shaft.

Claims (1)

[Scope of utility model registration request] A dial 1 consisting of a plurality of multi-divided dial pieces 1a and 1b, an indicator hand 3 placed above the dial 1 and indicating the time, and an indicator hand 3 placed below the dial 1 and pointing downward. A fixed bush 5 is formed with a plurality of protrusions 5a that protrude from the top and have a hole 5b in the center.
a watch base plate 2 disposed below the fixing bush 5 and formed with an engagement hole 2a into which the protrusion 5a is inserted; A protruding pin 4a passes through the locking holes 1c, 1c provided near the dividing portions of the dial pieces 1a, 1b, and further extends into the protruding portion 5a.
and a joining pin 4 that is press-fitted into the hole 5b of the
The indicator shaft 6 to which the indicator hand 3 is attached is sandwiched between the dial pieces 1a and 1b in the plane direction, and the connecting pin 4 is arranged at the time display scale position of the dial plate 1. A fixed structure for the dial of an analog watch.