JPH0227472Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a sliding switching device used in portable watches and the like.

[Prior Art] The applicant of the present application has developed a portable watch (1983-1993) which has a structure in which an inner case, in which a watch mechanical body is assembled in a cylindrical outer case, is slid from the side to be stored.
No. 108072 and No. 55-55780).

[Problem to be Solved] However, in this type of watch, in order to improve the operability of the switch, it is necessary to make the switch button protrude forward of the outer case by a certain height. To do this, it is necessary to increase the thickness of the outer case by the protruding height of the button and insert some kind of spacer member between the inner case and the outer case, which results in an increase in the thickness of the outer case. There were flaws.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a sliding switching device that has a thinner outer case, does not impair the operability of the switch, and facilitates assembly.

[Means for Solving the Problems] The present invention is characterized by: an outer case having an opening at one end and a switch button hole; an inner case inserted into the outer case and having a storage hole; A switch button support is slidably stored in the storage hole, a contact piece is fixed to the lower surface of the switch button support, and a pair of contacts are suspended from the lower surface of the switch button support. a slide switch button that slides in the switch button hole in the direction of the surface of the outer case, a circuit board fixed to the inner case, and a conductive part provided on the upper surface of the circuit board. The storage hole of the middle case is opposite to the switch button hole, and the upper surface of the switch button has a locking hole opposite to the switch button hole. The pair of legs have a length sufficient to accommodate the contact piece and hang down from positions on both sides of the contact piece, and the slide switch has legs that are located on the outside of the outer case. The circuit board is secured to a locking hole in the upper surface of the switch button support through the switch button hole, and the circuit board has a slight gap between its upper surface and the leg of the switch button support. The electrically conductive portion has one end of the contact piece that can be moved into and out of contact with the conductive portion.

[Examples] Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, an outer case 1 of a portable digital watch has a cylindrical shape (see FIG. 4), and a front cover 2 is attached to the front of the outer case 1. A slide switch button 3 is attached below the front cover. , 3a, 3b
and push switch buttons 4, 4a are provided.

This invention is a slide switch button 3, 3a, 3
The present invention relates to a switching device that opens and closes by a sliding operation, and its specific configuration will be described below.

In FIGS. 1 and 2, the outer case 1 has a thin cylindrical shape as described above, and has an opening at one end (the right end in FIG. 1).
A synthetic resin inner case 5 is slid and inserted through this opening.

The inner case 5 is provided with a housing hole 7 for a switch button support 12, facing the switch button hole 6 provided on the front surface of the outer case 1. The switch button hole 6 is formed in the frame 8 which is fitted into a horizontally long hole 1a provided on the front surface of the outer case 1.

On the back of the middle case 5, the circuit board 9 is attached with screws 10.
It is attached by ..., and this screw is nut 11
It is fixed to the middle case 5 by....

A switch button support 12 is slidably housed in the housing hole 7, as shown in the second figure.
The switch button support 12 has a gate-like shape as shown in FIG. They are located opposite each other with a gap between them.

The upper surface of the switch button support 12 has two locking holes 12b and 12, as shown in the third and fourth figures.
c is formed in this locking hole, the outer case 1
The scripts 30 and 31 of the slide switch button 3 are engaged from the front side of the slide switch button 3 through the switch button hole 6. The locking protrusions 30a and 31a provided at the tips of the legs 30 and 31 engage with the engagement surface 12d provided on the switch button support 12, and the slide switch button 3 is locked to the switch button support 12. are doing.

3 and 4, bifurcated spring contact pieces 13, 13, which are contact parts, are attached to the lower surface of the switch button support 12, and the tips of the spring contact pieces are attached to the circuit board 9. It can come into contact with and separate from conductive parts 14 and 15 provided adjacently on the upper surface. And the legs 12a, 12a of the switch button support 12
spring contact pieces 13, 13 from the lower surface of this support.
It hangs down on both sides of the spring contact piece and has a sufficient length to accommodate this spring contact piece.

Therefore, by sliding the inside of the switch button hole 6 of the slide switch button 3 in the surface direction of the outer case 1, the spring contact piece 13 is moved between both conductive parts 14,
The switch can be opened and closed to make 15 conductive.

Next, the assembly work will be explained.

Attach the circuit board 9 to the back of the middle case 5 with screws 10 in advance.
... and store the switch button support 12 in the storage hole 7. When the inner case 5 is slid through the side opening of the outer case 1 and stored, the switch button support 12 faces the switch button hole 6 of the outer case 1. Therefore, as shown by the chain lines in FIGS. 2 and 4, the legs 30, 31 of the slide switch button 3 are inserted into the locking holes 12b of the switch button support 12 from the front.
12c, and the locking protrusions 30a, 31a are engaged with the engaging surface 12d, thereby fixing the slide switch button 3. When inserting the legs 30, 31 of the slide switch button 3 into the locking holes 12b, 12c of the switch button support 12, the legs 12a, 1 of the switch button support 12
Since the lower surface of 2a contacts the upper surface of the circuit board 9,
Switch button support 1 depending on the pressing force at the time of insertion.
2 is held in place without moving downward, making it easy to insert the slide switch button 3. Of course, the other slide switch buttons 3a and 3b
Similarly, this is also attached from the front of the outer case 1.

When the slide switch button 3 is set to the position shown by the solid line in FIG.
3 is away from the conductive parts 14 and 15, so the switch is opened, but when the slide switch button 3 is moved to the position indicated by the chain line in FIG. 2 (to the right in FIG. 2), the spring contact pieces 13 and 13 are conductive parts 14 and 1
5 and the switch is turned on.

[Effect] The present invention having the above configuration allows the switch button to be attached from the outside of the outer case, so the end of the switch button can be made to protrude from the outer surface of the outer case without increasing the thickness of the outer case. This makes it easier to operate the switch button. The switch button support is formed with legs that are close to the circuit board, so when the slide switch button is inserted, the support is held in place by the pressing force at the time of insertion. At the same time, the spring contact piece can be protected, and the button can be easily and easily attached. Furthermore, since the slide switch button can be attached after the watch mechanism is assembled inside the outer case, assembly efficiency can be increased, and the shape of the button can be changed arbitrarily, making it practical. This has the above effects.

[Brief explanation of the drawing]

Figure 1 is a front view of the watch, Figure 2 is Figure 1-
FIG. 3 is an enlarged sectional view taken along lines in FIG. 2, and FIG. 4 is an enlarged sectional view taken along lines taken in FIG. 2. 1... Outer case, 3, 3a, 3b... Slide switch button, 5... Inner case, 6... Switch button hole, 7... Storage hole, 9... Circuit board,
12...Switch button support, 12a, 12a
... Legs, 12b, 12c ... Locking holes, 13 ...
Contact piece, 14, 15... Conductive part, 30, 31...
Leg body.

Claims (1)

[Scope of Claim for Utility Model Registration] An outer case having a switch buttonhole and an opening at one end, and a storage hole portion inserted into the outer case from the opening and facing the switch buttonhole. an inner case having an inner case, which is slidably stored in the storage hole;
a switch button support having a locking hole on the upper surface facing the switch button hole; a contact piece fixed to the lower surface of the switch button support; and a length sufficient to accommodate the contact piece. a pair of legs hanging down from the lower surface of the switch button support from positions on both sides of the contact piece; and the legs extend from the outside of the outer case through the switch button hole to the switch button support. A slide switch button that locks into a locking hole on the top surface and slides in the switch button hole in the direction of the surface of the outer case; and a slide switch button that is fixed to the middle case, while its top surface is connected to the switch button support. A sliding switching device comprising: a circuit board located opposite the leg portion of the circuit board with a slight gap; and a conductive part provided on the top surface of the circuit board, with one end of the contact piece being able to connect and separate. Device.