JPH0722015Y2 - Analog clock switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a switch device for an analog timepiece.

[Prior Art] Conventionally, an analog timepiece is known in which a plurality of opening / closing operation buttons of a time adjustment switch are arranged on the outer surface of a frame so as to be able to be pressed from the outside.

[Problems to be solved] However, in the past, since the operation buttons are individually provided, it is difficult to equalize the springiness of the springs that press the switches located on the back surface of the operation buttons, and the springs have variations. When the operation button is pressed, the pressing feeling of the operation button is slightly different for each operation button. Also, for those with numbers or symbols on the surface, it is necessary to install appropriate buttons at predetermined positions on the frame,
If the operation button is a single item, there is a problem that it takes a lot of time to assemble. SUMMARY OF THE INVENTION An object of the present invention is to provide a switch device for an analog timepiece, which can ensure the springiness of each operation button evenly and can significantly reduce the assembly time of the operation button on the frame.

[Means for Solving the Problems] In order to achieve the above object, the switch device of the analog timepiece of the invention is characterized in that a plurality of operation buttons are directed forward on the front surface of a ring-shaped flexible thin plate portion. The protrusions for opening and closing the switch are integrally formed on the back surface of the thin plate portion from the position corresponding to the operation button, and the outer peripheral surface of the thin plate portion has a plurality of U-shaped shapes. The mounting parts of the mounting part are integrally formed so that each base part of the mounting part is connected to the outer peripheral surface of the thin plate part at a position corresponding to the center between a specific operation button and another operation button adjacent to it. Each of the mounting portions is positioned and fixed by a locking portion formed integrally with the frame body.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 8, a dial 2 having indexes 2a such as time characters is provided on a time display portion of a mounting plate 1 as an example of a frame, and a position corresponding to the index 2a on the outer periphery of the dial 2 of the mounting plate 1 is provided. Is provided with a plurality of operation buttons 8 for opening and closing switches for setting the time.

In FIGS. 1 and 2, a timepiece mechanical body 3 is attached to the back surface of the attachment plate 1. A rear frame 5 is fixed to the back of the mounting plate 1 via screws 4. The rear frame 5 and the front frame 6 are elastically connected by a locking projection 5a formed on the front edge of the rear frame 5 and a locking recess 6a formed on the back edge of the front frame 6. Are engaged by. The front cover 7 of the mounting plate 1 is attached to the front frame 6.
The front cover 7 is provided with operation buttons 8. The operation button 8 is pierced so as to move forward and backward to the outside of the front cover 7 and can be operated from the outside.

In FIGS. 3 and 4, the operation button 8 is integrally formed on the front surface of the ring-shaped flexible thin plate portion 8a so as to project forward. On the back surface of the thin plate portion 8a, a protruding portion 8b for opening and closing the switch is integrally formed to project from a position corresponding to the operation button 8. A rubber switch 9 (shown in FIG. 5) having a carbon electrode 9a on its back surface is located on the back surface of the protrusion 8b. The rubber switch 9 is provided so as to face a switch substrate 10 (first shown), the switch substrate 10 is formed in a sheet shape, and one end thereof is attached to the mounting plate 1.

On the outer peripheral surface of the thin plate portion 8a, a plurality (three in this embodiment) of substantially U-shaped mounting portions 8c are integrally formed to project. Mounting part 8c
Each of the bases K is connected to the outer peripheral surface of the thin plate portion 8c at a position corresponding to the center between a specific operation button and another operation button adjacent to the specific operation button. Each of the mounting portions 8c,
It is fixed to the frame 1. That is, a pair of projections 8d, 8d are provided on the outer peripheral edge of the mounting portion 8c, and the projections 8d, 8d are integrally projected forward of the mounting plate 1 to form a pair of locking portions 1.
It is positioned and fixed by a and 1a (first and sixth shown).

In FIG. 1, a switch board 10 is electrically coupled to a circuit board 11 on which an electronic circuit (not shown) is formed, and the circuit board 11 is mounted on a mounting boss 1b ... It's stuck. At the bottom of the mounting plate 1 is a support plate facing the back.
The support plate 1c is formed with two holes 1d, 1c for accommodating the batteries 12, 12 (shown in FIG. 7) vertically, which are formed in a stretched manner.
1d (7th illustration) is formed.

In the vicinity of the hole 1d, a supporting column 13 penetrates the supporting plate 1c and a tip portion 13a thereof is provided so as to project. A positive battery contact piece is attached to the tip 13a.
A negative battery contact piece 14 and a negative battery contact piece 15 are coaxially provided so as to be swingable in parallel to the opening surface of the hole 1d, and two of them are provided in an electrically connected state in a stacked manner. A stopper seat 16 is attached to the tip portion 13a of the support column 13 so that both battery contact pieces 14 and 15 do not fall out. The battery contact pieces 14 and 15 are respectively formed with upright bent portions 14a and 15a which engage with the inner peripheral edge portions of the holes 1d and 1d to regulate the swing angle.

In FIG. 7, the positive electrode 12a of one battery 12 housed in the battery housing chambers 1e, 1e formed integrally with the mounting plate 1 is
The positive electrode 12b of the other battery 12 is in contact with the positive battery contact piece 14, and the negative electrode 12b of the other battery 12 is in contact with the negative battery contact piece 15. On the opposite side of the hole 1d of the battery storage chamber 1e, both battery contact pieces 14 and 15 located on the hole 1d side, a negative battery contact piece (not shown) and a positive battery contact piece 17 (first 1) is attached to a rib 1f (first shown) extending from the mounting plate 1.

In FIG. 1, below the front frame 6, a pair of tongues 6b, 6b extending to the back surface of the battery cover 18 are formed.
The b is fixed to the support plate 1c of the mounting plate 1 with screws 19.
The screw 19 is hidden from the outside by attaching the battery cover 18 to the hole 5b formed in the rear frame 5. In addition to the timepiece machine body 3, the mounting plate 1 has other components such as a snooze switch 20, a digital display block 21, a set switch 22,
A sounding body 23 and a sound stop switch 24 (shown in FIG. 8) are connected to the circuit board 11 by lead wires (not shown).

A pointer 25 is located between the dial 2 and the front cover 7, and this pointer is attached to a pointer shaft 26 protruding from the timepiece mechanical body 3 and penetrating the dial 2. The snooze button 27 is engaged with the upper part of the snooze switch 20, and the set switch 22
The set button 28 is engaged with the
A stop button 29 (shown in FIG. 8) is engaged with this.

[Effect] As described above, according to the present invention, a plurality of operation buttons are integrally formed on the front surface of the ring-shaped flexible thin plate portion so as to project forward, and correspond to the operation buttons on the back surface of the thin plate portion. A protrusion for opening and closing the switch is integrally formed to project from the position, and a plurality of substantially U-shaped mounting portions are integrally formed to project on the outer peripheral surface of the thin plate portion.Each base of each mounting portion serves as a specific operation button. It is formed by connecting to the outer peripheral surface of the thin plate portion at a position corresponding to the center between other operation buttons adjacent to it, and each mounting portion is positioned and fixed by a locking portion integrally formed with the frame body. Therefore, the springiness can be equally ensured for each operation button, and thus the pressing feeling of the operation button can be improved. Further, since the operation buttons are not disjointed by the above configuration, the assembly time of the operation buttons on the frame can be greatly reduced.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a sectional view, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a plan view.
FIG. 4 is a sectional view taken along line BB in FIG. 3, FIG. 5 is an enlarged sectional view of an essential part, FIG. 6 is a rear view, FIG. 7 is a bottom view with a battery cover removed, and FIG. It is a front view. DESCRIPTION OF SYMBOLS 1 ... Frame (mounting plate), 1a ... Locking part, 2 ... Dial, 2a ... Index, 7 ... Front cover, 8 ... Operation button, 8a ... Thin plate part, 8b
… Protrusion, 8c… Mounting part, 9… Switch, K… Base part.

Claims (1)

[Scope of utility model registration request] 1. A time display section of a frame body is provided with a dial having indexes such as time characters, and a plurality of operation buttons for opening and closing switches at positions corresponding to the indexes on the outer periphery of the dial of the frame body. Is a switch device of an analog timepiece arranged so as to pass through the front cover of the frame so as to be able to move forward and backward, wherein the plurality of operation buttons are directed forward on the front surface of a thin plate portion having a ring-shaped flexibility. A protrusion for opening and closing the switch is integrally formed on the back surface of the thin plate portion at a position corresponding to the operation button, and a plurality of protrusions are formed on the outer peripheral surface of the thin plate portion. The substantially U-shaped mounting portion is integrally formed so as to project, and each base portion of the mounting portion is located at a position corresponding to the center between a specific operation button and another operation button adjacent thereto. It is connected to the outer peripheral surface of the thin plate, The switch device for an analog timepiece, wherein each of the mounting parts is positioned and fixed by a locking part formed integrally with the frame body.