JPH0336016Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to improvements in slide switches used in televisions, video decks, cassette decks, etc.

(Prior Art) As a conventional slide switch device, one shown in FIG. 4, for example, is known. This slide switch device includes a case 21, a slide lever 22 provided in the case 21 so as to be able to reciprocate horizontally, and
and a leaf spring 23 interposed between the case 21 and the case 21;
A pair of contacts 25, 25 having a plurality of terminals provided in parallel to each other on a substrate 24, and a contact 2
Sliding contact piece 26 that slides on 5 to switch the contact.
It is equipped with In this slide switch, the slide lever 22 is reciprocated horizontally, the sliding contact piece 26 is moved by the slide lever 22, and by this movement, the contact position with respect to the contact 25 is changed, and the contact position is changed. This is for switching.

(Problems to be Solved by the Invention) However, the conventional slide switch described above has a pair of contacts 25, 25, and a slider contact piece 2 that slides on the slider to switch the contact.
6 and 26 and configured to switch the contacts, there was a problem in that it was impossible to make the slide switch thinner.

Therefore, the present invention was made to solve the above-mentioned conventional problems, and an object thereof is to obtain a slide switch having a thin structure.

(Means for Solving the Problems) In order to solve the above-mentioned conventional technical problems, the present invention includes a printed circuit board having fixed contacts in a case, and a rubber having movable contacts placed on the printed circuit board. It is composed of a contact, an elastic member located on the rubber contact, and a slide lever slidably held on the elastic member, and the elastic member has an elastic pressing part, an elastic member mounting part, and a slide lever that is slidably held on the elastic member. It consists of a connecting piece that connects the elastic pressing part and the elastic mounting part, and the central part of the elastic pressing part located near the connecting piece has a curved shape, and the tip part is formed flat. The slide lever is located below the elastic member mounting part, and the slide lever is placed on the elastic pressing part of this elastic member, so that the lower surface of the slide lever slides on the elastic pressing part located below the elastic member mounting part. It is structured as follows.

(Function) In the slide switch of the present invention, when the slide lever is slid, the tip of one of the elastic pressing parts of the elastic member is pressed by the end of the slide member, pushing down the upper part of the movable contact of the rubber contact, This causes the movable contact to come into contact with the fixed contact on the printed circuit board, making the switch conductive.

In such an operation, since the elastic pressing part of the elastic member is configured to be located below the elastic mounting part, the slide lever is located below the elastic member mounting part in the initial state.
A thin slide switch structure can be obtained.

In addition, since it is configured to be slid on the elastic pressing portion, the sliding operation is good.

(Example) The drawing shows an example of implementation of the present invention.
The figure is an exploded perspective view of the slide switch, FIG. 2 is a sectional view of the same, and FIG. 3 is a plan view of the leaf spring member.

In the drawings, reference numeral 1 denotes a metal case that is open at the bottom, and has an opening 1a in the center of the upper wall, four caulking bosses 1b on the lower surface, and a , has a plurality of protrusions 1c.

The slide lever 2 consists of a plate-shaped main body 2a and a knob actuating part 2b protruding from the upper center of the main body 2a. It is slidably fitted into the

The leaf spring member 3 has a substantially H-shaped planar shape, has boss insertion holes 3b at the four corners, and is curved downward at the center. From the center of the connecting piece 3a at the center of the leaf spring member 3, elastic pressing portions 3c extend on both sides in a direction perpendicular thereto, that is, in the direction of extension of the leaf spring 3, and the tip of the elastic pressing portion 3c The part is configured to be located below the boss insertion hole (attachment part) 3b located on both sides,
It is arranged to be pushed down by the slide lever as it moves. Thus, the leaf spring member 3 is fixed in the case 1 by inserting the caulking boss 1b into the hole 3b and caulking it.

The rubber contact 4 is provided in the lower part of the case 1, with a pair of movable contacts 4a on both sides arranged below the tip of the elastic pressing part 3c and above a pair of fixed contacts 5a on the printed circuit board 5. ing. These movable contacts 4a are provided on the inner surface of the bulging portion of the rubber contact 4, and when pressed down by the elastic pressing portion 3c, the movable contacts 4a touch the fixed contacts 5 on the printed circuit board 5.
It has a reversing function by contacting and restoring a.

The printed circuit board 5 is fixed to the bottom of the case 1 by bending the protruding piece 1c of the case 1.

Next, the operation of the above embodiment will be explained.

In the slide switch of this embodiment, a slide lever 2 is housed in a case 1, a leaf spring member 3 is attached to the lower part of the case 1 so that the slide lever 2 is sandwiched between the case 1, and a leaf spring member 3 is attached to a boss. 1b
It is fixed by caulking, and the printed circuit board 5 is attached and assembled with the rubber contacts 4 interposed at the bottom thereof.

When operating the slide switch, hold the knob operating portion 2a and hold the slide lever 2a.
When the is moved to one side along the opening 1a of the case 1, one end of the elastic pressing part 3c is bent downward by being pushed by the main body 2a of the slide lever 2, and one of the movable contacts 4a is pressed against the rubber. The switch is pushed down against the elasticity of the switch, contacts the fixed contact 5a on the printed circuit board 5, and turns on the switch. Next, when the slide lever 2 is moved to the opposite side, the elastic pressing section 3c described above returns to the previous position and becomes a switch-off state, and the elastic pressing section 3c on the other side is bent downward and positioned below. The movable contact 4a and the fixed contact 5a come into contact and turn on the switch. Therefore, the central part of the elastic member 3 is formed into a curved shape around the connecting piece 3a, and the elastic pressing part 3c is positioned below the boss insertion hole 3b provided at the tip of this curved part. Therefore, in the initial state, the slide member 2 is located above the curved center portion of the elastic member 3, and a thin slide switch can be obtained.

Further, since the center portion of the elastic pressing portion 3c is formed into a curved shape and the tip portion is made into a flat shape, the sliding operation of the slide lever can be performed smoothly. Furthermore, since the creepage distance to the contact portion can be relatively long, there is no risk of static electricity falling onto the contact portion of the printed circuit board 5, and there is no fear that the circuit on the host side will be damaged by static electricity.

(Effects of the invention) As explained above, in this invention,
A printed circuit board having a fixed contact inside a case, a rubber contact having a movable contact placed on the printed circuit board, an elastic member positioned on the rubber contact, and a rubber contact held slidably on the elastic member. and a slide lever, and the elastic member is
It consists of an elastic pressing part, an elastic member mounting part, and a connecting piece that connects these elastic pressing parts and the elastic mounting part, and the central part of the elastic pressing part located near the connecting piece has a curved shape, and the tip The section is formed flat, and the tip thereof is located below the elastic member attachment section, and the slide lever is placed on the elastic pressing section of this elastic member, and the lower surface of the slide lever is located below the elastic member attachment section. Since the push button switch is constructed so as to slide on the elastic pressing section located thereon, a thin push button switch can be obtained.

In addition, the center part of the elastic pressing part is formed into a curved shape,
Since the distal end portion has a flat shape, the slide lever has good sliding operability when pressing the rubber contact.

[Brief explanation of the drawing]

Figures 1 to 3 show an example of the implementation of the present invention; Figure 1 is an exploded perspective view of a slide switch, Figure 2 is a sectional view of the same, and Figure 3 is a plan view of a leaf spring member. 4 is an exploded perspective view of a conventional slide switch. 1...Case, 2...Slide lever, 3...
Leaf spring member, 3c...Elastic pressing part, 4...Rubber contact, 4a...Movable contact, 5...Printed circuit board, 5
a...Fixed contact.

Claims (1)

[Scope of utility model registration request] A printed circuit board with fixed contacts inside the case,
It is composed of a rubber contact having a movable contact placed on the printed circuit board, an elastic member located on the rubber contact, and a slide lever slidably held on the elastic member. consists of an elastic pressing part, an elastic member mounting part, and a connecting piece that connects these elastic pressing parts and the elastic mounting part, and the central part of the elastic pressing part located near the connecting piece has a curved shape. , the tip part is formed flat, this tip part is located below the elastic member attachment part, the slide lever is placed on the elastic pressing part of this elastic member, and the lower surface of the slide lever is formed at the elastic member attachment part. A slide switch characterized in that it is configured to slide on an elastic pressing portion located further downward.