JPH031858Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push-operated switch used, for example, in electronic watches.

In some electronic watches, a push-operated switch is provided on the side of the case, and in such a case, the direction in which the operator is pressed is parallel to the circuit board.
Therefore, in the past, a switch leaf spring was attached to the circuit board so as to face the operator at right angles. However, this had the disadvantage of increasing the number of assembly steps.

The present invention aims to solve the above-mentioned conventional drawbacks, and examples thereof will be described below.

In FIG. 1, a support plate 1 also serves as the outer case of the watch, and a switch leaf spring 2 is disposed at right angles to the support plate 1. The switch leaf spring 2 is supported near its both ends by a pair of support means 3, each of which comprises a hole 3a and a protrusion 3b. The protrusion 3b receives the surface of the switch plate spring 2. As shown in the second figure, tongues 4, 4 formed hanging down from the lower side of the switch leaf spring 2 are engaged with the hole 3a, thereby positioning the switch leaf spring 2. An operator 5 is provided on one side (left side) of the switch plate spring 2, and this operator 5 can be moved to the right in FIG. The switch plate spring 2 is connected between the support means 3 and 3
It is in contact with one side of the A fixed contact piece 7 is located on the other side (right side) of the switch leaf spring 2.
This fixed contact piece 7 is connected to the switch leaf spring 2 and the operator 5.
The circuit board 8 (see FIG. 2) is connected to the lower surface of the circuit board 8 (see FIG. 2), which is arranged to cover the circuit board from above. In addition, the operator 5 can also be operated by sliding upward or downward as shown in FIG. It is in ballistic contact with the A conductive member 11 is supported at the lower part of the support plate 1 via pillars 12 and projections 13 and 14. This conductive member 11 is connected to a battery (not shown) and is for supplying battery energy to the circuit board 8. When the circuit board 8 is screwed to the pillar 12, the power supply electrode (not shown) on the lower surface of the circuit board 8 is connected to the battery (not shown). ) is electrically connected to the bent portion 11a. Furthermore, a connection terminal spring 15 is integrally bent diagonally downward to the right at one end (lower end) of the switch plate spring 2, and this connection terminal spring 15 is elastically connected to the conductive member 11 by a predetermined spring force. are in contact and electrically connected.

To explain the operation, when the operator 5 is slid upward or downward in FIG. be able to. When the operator 5 is pushed, the switch leaf spring 2 is deformed into an arched shape by the protrusion 6 on the front surface of the operator against its own elastic force as shown in the third figure, and comes into contact with the fixed contact piece 7. As a result, the alarm is turned off, etc. At this time, the connection terminal spring 15
tends to be displaced downward in FIG. 3 in conjunction with the arched deformation of the switch leaf spring 2, and the contact pressure with the conductive member 11 increases. Therefore, the connection terminal spring 15 is reliably electrically connected to the conductive member 11 without soldering. Further, when the switch plate spring 2 is deformed into an arched shape, the end connection terminal spring 15
Slide the surface slightly to the left. This action further ensures electrical continuity. When the push of the inserter 5 is released, the operator 5 returns to the position shown in FIG. 1 by the restoring force of the switch plate spring 2. Even in this state shown in FIG. 1, the switch leaf spring 2 presses the operator 5 to the left to prevent it from wobbling.

In order for the connection terminal spring 15 to have the effect of increasing the contact pressure as described above, the support means 3, 3 for the switch leaf spring 2 are of a type that prevents the switch leaf spring 2 from being deformed as shown in the third figure. Although not necessarily, the structure is not limited to the above embodiments and can be modified as appropriate. For example, as shown in FIG. 4, the switch plate spring 2 may be inserted and held between a pair of pins 16, 16.

According to the above-mentioned switch of the present invention, when the operator is pushed in, the switch plate spring curves and contacts the fixed contact piece, thereby closing the switch, which is almost the same as usual. The curvature of the spring causes the connection terminal integrated therewith to strongly abut against the conductive member. For this reason, there is no occurrence of poor continuity between the connection terminal of the switch plate spring and the conductive member, which is an electrical connection made by mere contact, resulting in high reliability. It is also very easy to assemble, as all you have to do is put in the parts, making it ideal as a push-type side switch for electronic watches.

[Brief explanation of the drawing]

FIG. 1 is a plan view of essential parts of an embodiment of the present invention. Second
The drawings are a sectional view taken along the line shown in FIG. 1, FIG. 3 is a plan view of the main part when the operator is pushed, and FIG. 4 is a plan view showing another embodiment of the support means for the switch leaf spring. 1...Support plate, 2...Switch plate spring, 3...
Supporting means, 5... Operator, 7... Fixed contact piece, 11
. . . Conductive member, 12 . . . Connection terminal spring.

Claims (1)

[Claims for Utility Model Registration] A switch leaf spring that is supported by a pair of support means formed at intervals on a support plate of a timepiece and that is elastically deformed using both support means as fulcrums; An operator that presses one side of the switch leaf spring between the support means, and a fixed contact that is provided on the other side of the switch leaf spring and that causes the switch leaf spring to move toward and away from the user when pressed by the operator. and a connection terminal spring bent from one end of the switch plate spring toward the other side surface and elastically in contact with the conductive member.