JPS596446B2 - four way switch - Google Patents

Description

[Detailed description of the invention] The present invention relates to a four-way switch.

More specifically, the present invention relates to a switch that can selectively open and close four circuits.

This type of switch, for example a switch for a remote control mirror, moves one movable piece carrying a contactor by operating a lever, so that conductive parts supported on a base near the movable piece can be connected to each other in a desired combination. connected and configured to open and close the desired circuit.

Since all the contacts move simultaneously across the L as the movable piece moves, the arrangement of the conductive parts on the base becomes extremely complicated.

For this reason, attempts have been made to propose a simple switch in which the conductive part of the base plate can be easily arranged.However, the present invention further improves the conventional configuration, and is even simpler and easier to manufacture than the conventional one, and the attached parts are also reduced. The purpose is to provide a four-way switch that requires less.

In other words, the conventional improved type had at least 6 electrodes.
The present invention aims to provide an even more advantageous electrode by reducing the number of electrodes to five, which was disadvantageous in terms of manufacturing and accessory parts.

In order to achieve the above object, the present invention provides a switch having a configuration as will be described in detail below using embodiments.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

The open end of the housing 10 having a square cross section is connected to the base 20.
The space thus defined is further partitioned into two by the base 15.

The base 15 and the base 20 are arranged substantially parallel to each other, and two movable pieces 18 and 19 are housed in the space between the two members.

Both rotating pieces 18 and 19 are formed into a substantially prismatic shape, and the movable piece 19
is placed below (beside the bending base 20), and the movable pieces 18 are placed above it so as to intersect with each other at right angles. Notches 18a and 19a are formed on both sides, each extending approximately half the thickness, and intersect with each other at the notches 18a and 19a.

The length of these notches is made larger than the width of the other movable piece.

Further, the lengths of both rotating pieces are configured to be approximately equal to the inner dimension of the housing 10.

As a result, both rotating pieces are accommodated in a space within the range of their thickness, and can only move along the longitudinal direction of the other movable piece.

On the lower surface facing the base 20 near both ends of the movable pieces 18, 19 combined in this way, there are contactors 21, 22, 23, 2.
Install 4.

Each contactor has both ends of a metal strip plate bent, and the bent ends are engaged with engaging portions formed on both side surfaces of each movable piece to provide elasticity in the direction of the base.

Elongated holes 18b and 19b extending along the respective longitudinal axes are formed at the intersection of both rotating pieces 18, 19.

The operation pin 12 is engaged with these long holes.

The operation pin 12 is inserted into a central hole 17 provided in the base 15 and
- Penetrate the through hole 10a provided in the center of the earthen wall of the housing 10 and make it protrude upward, and attach the knob 11 to this protrusion.

Then, a hemispherical receiving part 13 is fixed to a part of the pin 12 located between the upper wall of the housing 10 and the base 15.
- Receive the housing 10 from below so that its spherical part contacts the lower part of the through hole 10a of the earthen wall.

Further, the upper surface of the base 15 is sloped toward the central hole 17 in a forest-like manner, and the spherical surface of the hemispherical sleeve 16 provided below the receiving portion 13 is brought into contact with this portion. A pressing spring 14 is interposed between the receiving portion 13 and the receiving portion 13 .

As a result, the operating pin 12 can swing freely around the center of the spherical surface of the receiving portion 13, and as the spherical surface of the sleeve 16 slides on the upper surface of the base 15, it is automatically returned to the neutral position.

Therefore, when the knob 11 is operated and the operation pin 12 is tilted, the operation pin slides along the long hole of one movable piece and simultaneously engages the side edge of the long hole of the other movable piece. The movable pieces can be moved along the longitudinal direction of one movable piece.

When the knob 11 is released, the restoring force of the spring 14 causes the sleeve 16 to slide to the deepest position on the upper surface of the base, and the operation pin 12 returns to the neutral position, returning the movable piece to its original state.

At this time, the elongated holes 18b and 19b are formed according to the shape of the operating pin 12 so that the movement of the operating pin 12 and the movable piece 18. The long hole 19b of the movable piece 19 located below is formed in a tapered shape that opens upward, and the width of the small diameter portion is made equal to the width of the operating pin 12.
Make it approximately the same thickness as the .

In addition, when the operation pin 12 is in the shape of a round bar, the elongated hole is also made into an oblong shape.

On the surface of the base 20 facing the movable pieces 18 and 19, a first
Conductive parts 1 to 8 are arranged as shown in the figure.

That is, the first conductive part 1, the third conductive part 3, the fifth conductive part 5
, the seventh conductive part 7 is disposed near the four corners of the base, the second conductive part 2 is disposed near the middle between the first conductive part 1 and the third conductive part 3, and the fourth conductive part 4 is disposed near the third conductive part 3. The sixth conductive part 6 is arranged near the middle between the conductive part 3 and the fifth conductive part 5.
The eighth conductive part 8 is disposed near the middle between the seventh conductive part 7 and the first conductive part 1 .

Then, the first conductive part 1 and the fifth conductive part 5 are connected, the sixth conductive part 6 and the eighth conductive part 8 are connected, and the third conductive part 3 and the seventh conductive part 7 are connected to each other. Connect it so that it does not intersect with any conductive parts.

In addition, in correspondence with the above-mentioned electrode arrangement, there are contactors 21 and 22 on the lower surface near both ends of the movable piece 1g and 190, as described above.
23 and 24, and each contact is
When the movable piece 18, 19 is in the neutral position, it contacts only the conductive parts 2, 4, 6°8 arranged near the middle, and the movable piece 18
．． 19 is configured to be in contact with both the conductive portions placed near the middle portion and the corresponding conductive portions placed near the four corners at the position where it is slid in the vertical or horizontal direction.

Then, both terminals of a DC power source V are connected to the first conductive part 1 and the third conductive part 3, both terminals of the motor M0 are connected to the second conductive part 2 and the eighth conductive part 8, and the fourth conductive part part 4 and eighth conductive part 8
Connect both terminals of motor M2 to.

Note that 25 to 29 are electrodes for connecting the conductive portion to the above-mentioned external circuit.

Since the four-way switch of the present invention has the above-described configuration, when the movable piece 18 is slid, for example, in the direction a by operating the knob 11, the contact 21 attached to one end of the movable piece 18 moves to the conductive part. 2 and 3 are connected, and a contactor 23 attached to the other end side connects the conductive parts 5 and 6.

When connected in this way, power supply V → electrode 25 → conductive part 3 →
Contactor 21 → Conductive part 2 → Electrode 27 → Lead wire 31 → Motor M1 → Lead wire 32 → Electrode 29 → Conductive part 8 → Conductive part 6
→ Contactor 23 → Conductive part 5 → Conductive part 1 → Electrode 26 → Power supply V
The circuit is closed, and motor M1 rotates.

Conversely, when sliding in direction b, power supply V → main electrode 5 → conductive part 3 → conductive part 1 → contactor 23 → conductive part 6 → conductive part 8 → electrode 29 → lead wire 32 → motor M1 → lead wire 31 → Electrode 27 → Conductive part 2 → Contactor 21 → Conductive part 1 → Electrode 26 → Power supply V, the circuit is closed, and motor M1 rotates in the reverse direction.

When the knob 11 is operated to slide the movable piece 19 in the C direction, the power source v-+ electrode 25 → conductive part 3 → contact 22 → conductive part 4 → electrode 28 → lead wire 33 → motor M2 → lead wire 3
The circuit 2→electrode 29→conductive part 8→contactor 24→conductive part 1→electrode 26→power supply V is closed, and motor M2 rotates.

Conversely, when the movable piece 19 is slid in the d direction, the power source V → electrode 25 → conductive part 3 → conductive part 7 → contactor 24 → conductive part 8 →
Electrode 29 → Lead wire 32 → Motor M2 → Lead wire 33 →
Electrode 28 → Conductive part 4 → Contactor 22 → Conductive part 5 → Conductive part 1
The circuit → electrode 26 → power supply V is closed, and the motor M2 rotates in the reverse direction.

Therefore, according to the switch of the present invention, the two motors M19M2 can be freely rotated in forward and reverse directions by operating the knob 11, and is suitable for use in a remote control device for rear view of an automobile. .

Furthermore, since the movable pieces 18 and 19 slide independently during operation, the arrangement of the conductive parts can be simplified as described above.

Moreover, compared to the conventional type, only five electrodes are needed, which is not only advantageous in manufacturing, but also reduces the number of attached parts such as lead wires, which is economical and takes up less space for the switch. It is also advantageous in that it can be made smaller.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the four-way switch of the present invention, and FIG. 1 is a top view of the base, showing the switch contact structure. FIG. 2 is a longitudinal sectional view of this embodiment, and FIG. 3 is a sectional view taken along the line A--A in FIG. 1... First conductive part, 2... Second conductive part, 3... Third conductive part, 4... Fourth conductive part, 5... Fifth conductive part,
6... Sixth conductive part, 7... Seventh conductive part, 8... Eighth conductive part, 12... Operation pin, 18.19... Movable piece, 20... Base, 21 ~24...Contact.

Claims (1)

[Claims] 1. First to eighth conductive parts are arranged on the upper surface of a substantially square-shaped base, among which the first, third, fifth and seventh conductive parts are arranged in order near the four corners of the base, and the second conductive parts are arranged in order near the four corners of the base. is arranged near the middle of the side between the first conductive part and the third conductive part, the fourth conductive part is arranged near the middle of the side between the third conductive part and the fifth conductive part, and the sixth conductive part is arranged near the middle of the side between the third conductive part and the fifth conductive part. The conductive part is arranged near the middle of the side between the fifth conductive part and the seventh conductive part, and the eighth conductive part is arranged near the middle of the side between the seventh conductive part and the first conductive part. , connecting the first conductive part and the fifth conductive part, the third conductive part and the seventh conductive part, and the eighth conductive part and the sixth conductive part, respectively, and sliding on the base only in the left and right direction. A movable piece that can slide only in the vertical direction and a movable piece that can slide only in the vertical direction are arranged in combination at right angles to each other, and a contactor is attached to the lower surface near both ends of each movable piece, and the contactor is attached to the lower surface of the movable piece. When the movable piece is in the neutral position, it contacts only the conductive part placed near the middle, and when the movable piece is slid vertically and horizontally, it contacts both the conductive part placed near the middle and the conductive parts placed near the four corners. A four-way switch characterized in that it is configured to make contact with.