JP2002260490A - Multi-directional switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a switch configuration having a small plane space, i.e., miniaturization of a switch. SOLUTION: Among a plurality of switch means arranged on the inner surface of a bottom plate of an insulating case, a switch mean in the center is formed as a push-switch comprising a fixed contact on the bottom side and a diaphragm-spring-shaped movable contact superimposed on the fixed contact. Other switch means are leaf-switch having two contact spring strips and surround the center switch mean being placed at every equal angle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This is a multi-directional switch used for remote control of various electronic devices such as televisions and videos, portable telephones, and the like. Open / close (ON, OFF) operation of a plurality of switch means arranged on a case bottom plate. In which the operating member is selectively moved by sliding the operating member toward the target switch means and vertically lowering the center position (neutral).

[0002]

2. Description of the Related Art Recently, a multi-directional switch which can be switched to a multi-directional circuit has been used for a remote controller of a television, a video, and other various electronic / electronic devices, a cellular phone, and the like. A multi-directional switch of a type that performs horizontal switching in each direction such as front, rear, left, and right to perform each switching action and vertically lowers at a center position (neutral) to perform switching action is widely used.

However, a conventional multidirectional switch of this type includes a fixed contact on the bottom plate side and a disk-shaped diaphragm mounted on the fixed contact at equal angles around the center of the inner surface of the bottom plate of the insulating case and the periphery thereof. Since the switch means of the push switch type composed of the spring-type movable contact is arranged in a plane, the plane space (the plane size of the switch) is inevitably increased, and therefore, the switch configuration with a small plane space, that is, the switch There was a problem that miniaturization was difficult.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a diaphragm spring in which, of a plurality of switch means disposed on the inner surface of a bottom plate of an insulating case, only a center switch means is a fixed contact on the bottom plate side and a diaphragm spring mounted on the fixed contact. Push switch type switch means comprising movable contacts in the form of a circle, and switch means provided at equal angles around the switch means as leaf switch type switch means comprising two contact spring pieces, thereby saving a plane space. A small switch is configured to solve the problem of miniaturization of the switch.

[0005]

That is, according to the present invention, a fixed contact b on the bottom plate side and the fixed contact b are provided at the center of the inner surface of the bottom plate of the insulating case.
A push switch type switch means A comprising a diaphragm spring type movable contact a worn on the vehicle, and a leaf switch type switch means B at equal angles around the switch means A. ,

In each switch means B, movable and fixed contact spring pieces c and d are buried substantially parallel to a base fixed on the inner surface of the bottom plate, and an insulating pressing piece is provided at the tip of the contact spring piece c. The contact spring piece d is fixedly provided, and the tip of the contact spring piece d is engaged with the pressing piece.
When a set load is applied to the tip of the contact spring piece c by pressing the spring piece c in the direction, the substantially center portion of the contact spring piece d is instantaneously snapped and bent in the direction of the contact spring piece c, and The contact spring pieces c and d come into contact with each other (switch ON), and when the pressing is released, the contact spring piece c is instantaneously snap-restored and the contact spring pieces c and d are separated from each other (switch OFF). ,

An operating member is provided at a position above the switch means A, centered on the center of the switch means A, and the operating member is vertically depressed by a predetermined size against the spring pressure to make the movable contact a concave. It comes into contact with the fixed contact b (switch ON), and when the pressing is released, the spring is restored by the resilient restoring force of the spring (switch OFF). When the pressing piece is pressed, the two contact spring pieces c and d come into inflection contact with each other (switch ON). When the pressing is released, the two contact spring pieces c and d are restored horizontally by the resilient restoring force (switch OFF). The problem has been solved by a multi-directional switch which is provided for the above.

[0008]

Next, embodiments of the present invention will be described. (Fig. 1
Push-type switch means A comprising a fixed contact b on the bottom plate 2 side and a diaphragm spring-shaped movable contact a worn on the fixed contact b at the center of the inner surface of the bottom plate 2 of the insulating case 1 (see FIG. 10).
And a switch means B of a leaf switch type provided at equal angles around the switch means A (in the illustrated example, every 90 °).

In each switch means B, movable and fixed contact spring pieces c and d are buried in a base 3 fixed on the inner surface of the bottom plate 2 in a substantially parallel manner, and an insulating press is applied to the tip of the contact spring piece c. The contact spring piece d is fixedly provided, and the tip of the contact spring piece d is engaged with the pressing piece 4. The pressing piece 4 of the contact spring piece c is pressed in the direction of the contact spring piece d. When a set load is applied to the tip of the contact spring piece c by bending the piece c, the substantially central portion 5 of the contact spring piece d is instantaneously snapped and bent in the direction of the contact spring piece c, and both contact spring pieces c, d is brought into contact (switch ON), and when the pressing is released, the contact spring piece c is instantaneously snap-restored and the contact spring pieces c and d are separated from each other (switch OFF).

An operation member 6 is provided at a position above the switch means A with the center of the switch means A as a center. The operation member 6 presses down a set dimension vertically against the pressure of the spring 13 to vertically move the movable contact a. Depress and contact the fixed contact b (switch O
N), when the pressing is released, the spring 13 is restored so as to be restored by the resilient restoring force (switch OFF), and at the same time, is moved horizontally by the set dimension in the direction of each switch means B to push the pushing piece 4 of the contact spring piece c. A multi-directional arrangement in which the contact spring pieces c and d are brought into reverse bending contact (switch ON), and when the pressure is released, the contact spring pieces c and d are restored horizontally by the elastic restoring force of the contact spring pieces c and d (switch OFF). Switch.

For example, the operating member 6 is provided with a knob 8 (FIG. 6) having a circular shaft 7 protruding at the center of the lower surface, and a center hole 9 through which the circular shaft 7 is vertically movably inserted. Guide plate 10 for guiding the horizontal movement in four directions, front, rear, left and right, on the lower surface
Corner guide square plate-like horizontal guide plate 11 provided with (FIG. 10)
(FIG. 9), a horizontal guide plate 11 is installed on the lower surface of the top plate 12 (FIG. 4) of the case 1 (FIG. 5) so as to be horizontally movable in four directions, and the circular shaft 7 of the knob 8 is vertically set in the center hole 9 thereof. The lower end of the switch A is installed to face the center of the movable contact a of the switch A, and a spring 13 is stretched between the upper surface of the horizontal guide plate 11 and the lower surface of the knob 8 to urge the knob 8 upward. Further, the pressing member 4 of the contact spring member c of each switch means B is provided in contact with the four sides of the horizontal guide plate 11 (FIGS. 1 to 3).

If necessary, a stopper 14 is provided near the base of the contact spring piece d of each switch means B on the bottom plate 2 or the peripheral side plate of the case 1 as shown in the drawing. When a load is applied to the tip of the contact spring piece c due to the pressing and bending of the contact spring piece c, the base of the contact spring piece d is pressed against the stopper projection 4 to restrain the flexure in the direction of the stopper projection 4 so that the contact spring piece is bent. d is provided so as to be easily snapped and bent with a small load.

A stopper 15 projects from the bottom plate 2 of the case 1 at a set distance from each corner of the horizontal guide plate 11, and the horizontal movement distance of the horizontal guide plate 11 is adjusted by the stopper 1.
5 is provided so as to regulate the corners of the horizontal guide plate 11 by collision.

A guide projection 17 for guiding the horizontal movement of the guide plate 10 of the horizontal guide plate 11 of the operating member 6 is provided on the bottom plate 2 of the case 1. Reference numeral 16 denotes a cover for (the movable contact a of) the switch means A.

[0015]

When the knob 8 of the operating member 6 is pressed against the resilient force of the spring 13 and vertically lowered, the lower end of the circular shaft 7 is depressed at the center of the movable contact a of the switch means A and presses against the fixed contact b. Then, when the pressing is released, the knob 8 is lifted and restored by the restoring elastic force of the spring 13, and the movable contact a is restored and separated from the fixed contact b (switch OFF).

Further, the horizontal guide plate 11 of the operating member 6 is slid in the front, rear, left, and right directions (in the illustrated example, right direction) by sliding guides of the guide plate 10 so that the right corner of the horizontal guide plate 11 is moved. When the portion moves horizontally until it collides with the stopper 15, the right side of the horizontal guide plate 11 collides and presses against the pressing piece 4 of the contact spring piece c of the switch means B, and the contact spring piece c is recurved, and at the same time, the contact spring piece is bent. A load is applied to the distal end of the contact spring piece d, so that the contact spring piece d snaps and snaps in the direction of the contact spring piece c instantaneously in combination with the fact that the vicinity of the base of the contact spring piece d is restricted by the stopper projection 14. When the contact is made (switch ON) and the horizontal movement of the horizontal guide plate 11 is stopped and released, the horizontal guide plate 11 is restored horizontally by the restoring elastic force of the contact spring pieces c and d, and at the same time, the contact spring piece d is moved. The load is released, instantaneously restores the elasticity and connects Away from the spring piece c (switch OFF).

[0017]

As described above, except for the central switch means A,
Since the surrounding switch means B are all leaf switch type switch means, there is an excellent effect that it is possible to provide a multidirectional switch having a particularly small plane space as compared with the related art. At this time, the dimensions of the embodiment of the switch of the present invention are vertical,
It is about 10 mm in width and about 7 mm in height, but further downsizing is possible.

The knob and the circular shaft of the operating member are urged upward by the elastic force of the spring, and the lower end of the circular shaft is always provided at a distance from the movable contact of the switch means A, and must be depressed at a set pressure against the spring pressure. If the switch is not turned on, the switch unit A can be prevented from being erroneously operated.
There is an effect that sag due to overload of the ram-type spring with a movable contact can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective plan view of a multidirectional switch according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line EE of FIG. 1;

FIG. 3 is an operation explanatory view showing a state in which an operation member (horizontal guide plate) in FIG. 1 is horizontally moved rightward and a switch unit B at a right position is turned on.

FIG. 4 is a plan view of a top plate of a case and a cross-sectional view thereof.

FIG. 5 is a plan view of a case and a cross-sectional view thereof.

FIG. 6 is a front view and a plan view of a knob of the operation member.

FIG. 7 is a bottom view of a cover of the switch means A and a cross-sectional view thereof.

FIG. 8 is a plan view of a movable contact a of the switch means A and a cross-sectional view thereof.

FIG. 9 is a front view and a plan view of a horizontal guide plate of the operation member.

FIG. 10 is a front view, a plan view, and a front view of a guide plate of a horizontal guide plate.
And a right side view.

[Explanation of symbols]

 A switch means (push switch type) B switch means (leaf switch type) a movable contact b fixed contact c contact spring piece (movable side) d contact spring piece (fixed side) 1 case 2 bottom plate 3 base 4 press piece 5 center Part 6 Operating member 7 Circular shaft 8 Knob 9 Center hole 10 Guide plate 11 Horizontal guide plate 12 Top plate 13 Spring 14 Stopper protrusion 15 Stopper (horizontal guide plate) 16 Cover (switch means A) 17 Guide protrusion

Claims (4)

[Claims] 1. A push switch type switch means A comprising a fixed contact b on the bottom plate side and a diaphragm spring type movable contact a worn on the fixed contact b is provided at the center of the inner surface of the bottom plate of the insulating case. A switch means B of a leaf switch type is provided at equal angles around the means A, and each of the switch means B is provided on a base fixed on the inner surface of the bottom plate, with movable and fixed contact spring pieces. c and d are buried substantially in parallel, an insulating pressing piece is fixedly mounted on the tip of the contact spring piece c, and the tip of the contact spring piece d is engaged with the pressing piece. When the pressing piece of the contact spring piece c is pressed in the direction of the contact spring piece d, the spring piece c is bent in reverse, and a set load is applied to the tip of the contact spring piece c. The contact spring pieces c and d are instantaneously snapped and bent in the direction c. Are brought into contact with each other (switch ON), and when the pressing is released, the contact spring piece c is instantaneously restored to the snap position and the contact spring pieces c and d are separated from each other (switch OFF). At the upper position, there is provided an operating member centered on the center of the switch means A, and the operating member is pressed down a set dimension vertically against the spring pressure to depress the movable contact a and contact the fixed contact b (switch). ON), when the pressing is released, the spring is restored by the elastic restoring force of the spring (switch OFF), and is set horizontally in the direction of each switch means B to press the pressing piece of the contact spring piece c to make the two contacts. The spring pieces c and d are provided in such a way that they come into inflection contact (switch ON), and when the pressure is released, the spring pieces c and d move horizontally (switch OFF) by the resilient restoring force of both contact spring pieces c and d. Direction switch The operating member has a knob provided with a circular shaft protruding at the center of the lower surface, and a center hole through which the circular shaft is vertically and vertically movably inserted. The lower surface guides the horizontal movement in four directions of front, rear, left and right. Consists of a horizontal guide plate in the form of a corner-cut square plate with a guide plate that can be moved. A horizontal guide plate is installed on the lower surface of the top of the case so that it can move horizontally in four directions, and the circular axis of the knob can be moved vertically up and down in the center hole. And the lower end thereof is installed facing the center of the movable contact a of the switch A, and a spring is stretched between the upper surface of the horizontal guide plate and the lower surface of the knob to urge the knob upward. 2. The multidirectional switch according to claim 1, wherein four sides are provided with a contact piece of a contact spring piece c of each switch means B in contact therewith. 3. A stopper is provided near the base of the contact spring piece d of each switch means B on the bottom plate or the peripheral plate of the case, and the contact spring piece c is provided at the tip of the contact spring piece c by the pressing reflex of the contact spring piece c. When a load is applied, the base of the contact spring piece d is pressed against the stopper to suppress the bending in the stopper direction, so that the contact spring piece d easily snaps and bends with a small load. The multi-directional switch of claim 1. 4. A stopper is protruded from a bottom plate of the case at a set distance from each corner of the horizontal guide plate, and the corner of the horizontal guide plate collides with the stopper by the horizontal movement distance of the horizontal guide plate. The multi-directional switch according to claim 1, wherein the multi-directional switch is provided so as to regulate the multi-directional switch.