JPH026583Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a four-way control push switch for remotely controlling, for example, a fender mirror of an automobile in the horizontal and vertical directions using two drive motors.

Conventionally, this type of multi-directional control push switch has been equipped with separate push buttons for each direction, or has been configured so that a single push button can be used to push in each direction. The fender mirror is remotely controlled in a desired direction by pressing a push button in a desired direction, or by operating a push button to swing the push button in the same direction. but,
In the case of these conventional push switches, when two or more push buttons are operated at the same time, or when one push button is pressed, the other circuit is not restored for some reason and remains closed, and the circuit is further operated in one direction. In order to prevent the formation of short circuits caused by such factors as The formation of short circuits was prevented by diversifying the connection wiring circuits inside the switch. Therefore, all of these conventional push switch configurations have drawbacks such as an increased number of parts and complexity, and a concomitant increase in assembly man-hours and manufacturing costs.

The present invention was devised in view of the above-mentioned drawbacks, namely, three movable contact pieces and three pairs of normally closed contacts and normally open contacts provided correspondingly to the movable contact pieces. By deploying a pole board with fixed contacts,
The object of the present invention is to provide a push switch in which an electric circuit is formed with an extremely simple structure, and a short circuit is not formed.

Hereinafter, a preferred embodiment of the push switch according to the present invention will be described in detail with reference to FIGS. 1 to 6.

1 and 2 are push buttons, and on the bottom side,
Each has a plurality of cylindrical protrusions 1a and 2a, and holes 1b and 2b, respectively, for inserting a spring 5 for automatic return are bored in the center. 3
and 4 are also push buttons, and their lower surfaces have a plurality of cylindrical protrusions 3a and 4a, respectively, similar to the push buttons 1 and 2, and a spring 5 for automatic return is inserted in the center. Holes 3b and 4b are respectively drilled therein. 6 is a case, and on the upper surface side 6a, the push buttons 1, 2,
3 and 4 are respectively inserted into the guide holes 6b,
6c, 6d and 6e are provided. Further, an opening 6f is formed on the lower surface side, which is the back surface, into which the base plate 14 is inserted. 7 and 8 are movable plates, movable contact pieces 12, 12a and movable contact pieces 12a,
Blade-shaped protrusions 7a that press 13 together.
and 8a, and are arranged in the case 6 facing each other as shown by imaginary lines in FIG. That is, the protrusions 1a and 2a of the pushbuttons 1 and 2 that protrude inward through the through holes 6b ₁ and 6c ₁ provided at the bottom of the guide holes 6b and 6c of the case 6 are connected to the movable plates 7 and 8. It fits into the mounting holes 7b and 8b and is crimped. 9 and 10 are also movable plates, and have blade-shaped protrusions 9a and 10a that press the movable contact pieces 12 and 13, and have the same structure as the movable plates 7 and 8, as shown by the imaginary line in FIG. As shown, it is attached to the push buttons 3 and 4 so as to be placed inside the case 6. Reference numeral 11 denotes an insulator, which is made of, for example, a resin member, has movable contact pieces 12, 12a, and 13 embedded therein in a comb shape, and is fixed to one of the upper surfaces of the base plate 14.

12 is a movable contact piece. The movable contact piece 12 is made of a thin plate spring material, and a contact point 12b having a contact surface is attached to one free end of the movable contact piece 12 so that it can be contacted on both the upper and lower sides. The other end is buried in the insulator 11 and is further integrally connected to the central movable contact piece 12a. 12a
is the movable contact piece 1 with a contact 12c attached to the free end.
This movable contact piece has the same shape as 2 and is connected to the movable contact piece 12 in a substantially U-shape within the insulator 11. 13 is also a movable contact piece. The movable contact piece 13 also has the same shape on one side as the movable contact pieces 12 and 12a, and has a contact point 13b attached to its tip. The other side buried in the insulator 11 is a connection terminal portion 13 connected to a terminal 19 of a connector portion 14c of the base plate 14 that is connected to the outside.
A is formed by protruding from the bottom surface. 14 is the base. The base 14 has a mounting hole 14a on one end side for positioning and fixing the insulator 11 in which the movable contact pieces 12, 12a and 13 are embedded in a predetermined position, and a connecting terminal portion 13a of the movable contact piece 13 on the lower surface side. A hole 14b is formed to protrude into the movable contact pieces 12, 12a and 13, and contacts 12b, 12c,
and 13b face each other on both sides and can be brought into contact and separated, that is, the fixed contacts 15a and 13b are normally closed contacts.
15b, and 17a, and fixed contacts 16a, 16b, and 18a, which are normally open contacts, are implanted.
Here, the fixed contact 15a, which is a normally closed contact, is formed integrally with the fixed contact 15b, and the base 14 is also formed integrally with the fixed contact 15b.
It is also configured to be connected to a terminal 15 that is connected to the outside in a connector portion 14c formed on the lower surface side.

Further, the fixed contact 16a, which is a normally open contact, is formed integrally with the fixed contact 16b, and furthermore, the base 1
It is also connected to a terminal 16 inside the connector section 14c of No. 4 for connection with the outside. Also,
Connector portion 14 formed on the bottom side of the base 14
In c, there is a terminal 17 connected to the fixed contact 17a forming the normally closed contact, together with the terminals 15 and 16.
A terminal 18 connected to the fixed contact 18a forming the normally open contact, and a terminal 19 connected to the connecting terminal portion 13a of the movable contact piece 13 are also implanted in a predetermined arrangement. 20 is a fastener for attaching the base 14 to the case 6.

Incidentally, FIG. 6 is an electrical connection circuit diagram showing an embodiment of the push switch according to the present invention, and 21 is a fender mirror. M ₁ and M ₂ are two motors provided in the fender mirror 21,
By operating the motors M ₁ and M ₂ ,
It controls the fender mirror 21 in the left-right direction and the up-down direction.

Next, the effect will be explained.

Now, in FIG. 1, for example, pushbutton 1 moves the fender mirror 21 to the left, and pushbutton 2 moves the fender mirror 21 to the left.
An embodiment will be described in which an electrical connection circuit is configured as shown in FIG. 6 so that the push button 3 can be driven to the right, the push button 3 can be driven upward, and the push button 4 can be driven downward.

Movable plates 7, 8, 9, and 10 are integrally fixed to the lower portions of the pushbuttons 1, 2, 3, and 4, respectively, and blade-shaped protrusions 7a that press the movable contact pieces 12, 12a, and 13 are provided. , 8a, 9a and 10a
are arranged as shown by imaginary lines in FIG.

Here, for example, when the push button 1 is pushed, the blade-shaped protrusion 7a of the movable platen 7 presses the movable contact pieces 12 and 12a together, so that the contact 12b of the movable contact piece 12 It separates from the fixed contact 15a that serves as a contact and contacts the fixed contact 16a that serves as a normally open contact. At the same time, the contact 12c of the movable contact piece 12a connected to the movable contact piece 12 also separates from the fixed contact 17a of the base 14, which is a normally closed contact, and is brought into contact with the fixed contact 18a, which is a normally open contact. Thus, the electrical connection circuit is constructed such that the terminal 16 of the fixed contact 16a is connected to the positive terminal of the power source (not shown), as shown by the directional position "left" in FIG.
The current flows from the positive pole of the power supply to the terminal 16 and the fixed contact 16.
a, movable contact piece 12, movable contact piece 12a, fixed contact 1
8a, from the terminal 18 to one side of the motor M ₂ , from the other side of the motor M ₂ to the terminal 19, a movable contact 13 connected to the terminal 19, a fixed contact 15b forming a normally closed contact with the movable contact 13, the fixed Flows from the terminal 15 connected to the contact 15b to the negative electrode of the power supply,
The motor _M2 drives the fender mirror 21 to the left, and when the push button 1 is released, the reaction force of the spring 5 causes the movable plate 7 to return to its original state together with the push button 1, and the motor _M2 is stopped. .

Next, when the pushbutton 2 is pushed to drive the fender mirror 21 to the right, the movable platen 8 fixed to the pushbutton 2 causes the protrusion 8a of the movable platen 8 to come into movable contact with the movable contact piece 12a. When the pieces 13 are pressed together, the contact 12c of the movable contact piece 12a contacts the fixed contact 18a, and the contact 13b of the movable contact piece 13 contacts the fixed contact 16b. Thus, in the electrical connection circuit, as shown by the directional position "right" in FIG.
The movable contact piece 13, the terminal 19, _the terminal 18,
Fixed contact 18a, movable contact piece 12a, movable contact piece 1
2. Flows from the fixed contact 15a and terminal 15 to the negative electrode of the power supply. That is, the direction of the current flowing to the motor _M2 is opposite to that when the pushbutton 1 is operated, that is, the direction of rotation is reversed, and the fender mirror 21 is driven to the right. .

Next, when the push button 3 is pushed to drive the fender mirror 21 upward, the movable platen 9 presses only the movable contact piece 12 with its protrusion 9a, and the contact 12b comes into contact with the fixed contact 16a. Thus, in the electrical connection circuit, as shown in the directional position "top" in FIG. from motor
from the other side _{of motor M 2 to} terminal 19,
Movable contact piece 13 and fixed contact 1 connected to terminal 19
5b, from the terminal 15 to the negative pole of the power supply, and the motor _M1 drives the fender mirror 21 upward.

Next, when the push button 4 is pushed in order to drive the fender mirror 21 downward, the movable platen 10 presses the movable contact piece 13 with its protrusion 10a, and the contact 13b is brought into contact with the fixed contact 16b. .

Thus, in the electrical connection circuit, as shown in the directional position "lower" in FIG.
9 to one side of the motor _M1 , terminal 17,
Fixed contact 17a, movable contact piece 12a, movable contact piece 1
2. The current flows from the fixed contact 15a and the terminal 15 to the negative pole of the power supply, and in the motor _M1 , the current flows in the opposite direction to that during the upward operation, and is reversed to drive the fender mirror 21 downward. be.

Next, a description will be given of the effect that a short circuit is not formed when two or more push buttons are pushed simultaneously.

Now, when pushbuttons 1 and 2 are pushed simultaneously, the movable platen 7 of pushbutton 1 moves to the movable contact piece 1.
2 and 12a, the movable platen 8 of pushbutton 2
will press the movable contact pieces 12a and 13. That is, the three movable contact pieces 12, 12a and 13
are pressed at the same time, and the contact 12b of the movable contact piece 12 is pressed to the fixed contact 16a, and the contact 12c of the movable contact piece 12a is pressed.
to the fixed contact 18a, to the contact 13b of the movable contact piece 13
are contacted to the fixed contacts 16b, respectively. Thus, the terminal 16 connected to the power supply is connected to the fixed contact 16a, the movable contact piece 12, the movable contact piece 12a, the fixed contact 18a, the terminal 18, one of the motor _M2 , and the terminal 19, the movable contact from the other side of the motor _M2 . contact piece 13,
The fixed contact 16b is connected to the terminal 16, forming a closed circuit, but since the connection to the terminal 15, which forms the connection circuit to the negative pole of the power supply, is cut off, no current flows, so the motor _M2 not rotated, and
No short circuit is formed either.

Also, when pushbuttons 3 and 4 are pushed simultaneously, the movable platen 9 of pushbutton 3 moves to the movable contact piece 1.
2, the movable platen 10 of the push button 4 presses the movable contact piece 13. Thus, the contact 12b of the movable contact piece 12 contacts the fixed contact 16a, and the contact 13b of the movable contact piece 13 contacts the fixed contact 16b. Thus, the electrical connection circuit starts from the terminal 16 connected to the power source, the fixed contact 16a, the movable contact piece 12, the movable contact piece 12a, the fixed contact 17a, and the terminal 1.
7. One side of the motor M ₁ is connected to the terminal 19, the movable contact piece 13, the fixed contact 16b, and the terminal 16 from the other side of the motor M ₁ to form a closed circuit, but the connection circuit to the negative pole of the power supply is Due to the interruption, no current flows, so the motor M ₁ is not rotated and no short circuit is formed.

Furthermore, when the push button 1 or 2 is pushed, that is, the movable contact piece 12 and the movable contact piece 12a are pressed by the movable platen 7 of the push button 1, or the movable contact piece 12a is pressed by the movable platen 8 of the push button 2. When the movable contact piece 13 is pressed, for some reason only the movable contact piece 12a is pressed, and only the contact 12c is pressed, and the fixed contact 1
8a, the fixed contacts 16a and 16b of the terminal 16 connected to the power supply are open, so the positive pole of the power supply is not connected, and the motors M ₁ and M ₂ are not rotated. Also, no short circuit is formed.

As explained above, the push switch according to the present invention has a mechanism in which no abnormal circuit is formed even if two or more push buttons are pressed simultaneously.

The electrical connection circuit diagram shown in FIG. 7 shows an example in which the right fender mirror 25 and left fender mirror 26 of an automobile are controlled in four directions by one push switch.
24 is a changeover switch for operating either the left or right fender mirrors 25, 26 as desired. The changeover switch 24 may be integrally built into the push switch.
Alternatively, it can be easily attached separately as desired.

Furthermore, in the embodiment described above, four push buttons 1, 2, 3, and 4 divided in each direction were provided, but these may be configured as one push button (not shown), and four The movable contact pieces 12, 12a, 13 can be easily operated in the same manner as described above by swinging in the respective directions by pushing the movable contact pieces 12, 12a, 13 in the respective directions.

As explained above, the push switch according to the present invention has the following effects.

(a) For the three movable contact pieces, the corresponding three
Two of the three movable contacts are short-circuited at each end, and the other movable contact is connected to the connector. connected to the terminal of the
Of the two normally closed contacts, two normally closed contacts are short-circuited at each end and connected to the negative pole side of the power supply, and the other normally closed contact is connected to one of the two motors. , among the three normally open contacts, two normally open contacts are short-circuited at each end and connected to the positive side of the power supply, and the other normally open contact is connected to the other one of the two motors. Since it is connected to a motor and the terminals of the connector part are connected to two motors, it is possible to provide a push switch in which short circuits are not formed even when a plurality of push buttons are operated simultaneously.

(b) It is possible to provide an inexpensive push switch that has a small number of component parts, simplifies the shape of the component parts, significantly reduces assembly man-hours, and stabilizes quality.

(c) Since the mechanism is such that the positive potential of the power supply is not applied to the contacts of the terminals connected to the load during normal times, problems such as electrolytic corrosion do not occur.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of a push switch according to the present invention. FIG. 2 is a sectional view taken along the line A--A in FIG. 1. Figure 3 shows the second
FIG. 3 is a plan view of the main part in the direction of arrow B-B in the figure. Fourth
The figure is a side view in the direction of arrow C in FIG. 3. FIG. 5 is a perspective view of components showing an embodiment of the push switch according to the present invention. FIG. 6 is an electrical connection circuit diagram showing an embodiment of the push switch according to the present invention. FIG. 7 is an electrical connection circuit diagram of another embodiment of the push switch according to the present invention. 1, 2, 3, 4...Push button, 7, 8, 9,
10...Movable plate, 12, 12a, 13...Movable contact piece, 14...Base, 15a, 15b, 16a, 1
6b, 17a, 18a... Fixed contact, 15, 1
6, 17, 18, 19...terminals.

Claims (1)

[Scope of Claim for Utility Model Registration] In a push switch that forms an electrical connection circuit that controls drive in four directions using two motors, there are four push switches that have protrusions on the lower surface and insert springs for automatic return. A case is provided with buttons and guide holes into which the four push buttons are inserted, and one end is embedded in a comb shape into one insulator fixed to one side of the top surface of the base.
three movable contact pieces, the other end of which is a free end;
four movable plates into which the protrusions on the lower surfaces of the pushbuttons are fitted and blade-shaped protrusions that press the three movable contact pieces are formed on the lower surfaces; and the free end sides of the three movable contact pieces. three normally closed contacts and three normally open contacts implanted on the other side of the upper surface of the base so as to make contact with and separate from the contacts having both upper and lower contact surfaces attached to the tips of the and a connector portion formed on the lower surface side of the base and having a terminal for connection with the outside, and of the three movable contact pieces, two movable contact pieces have respective ends connected by short circuit, Another movable contact piece is connected to a terminal of the connector part,
Among the three normally closed contacts, two normally closed contacts are short-circuited at each end and connected to the negative pole side of the power supply, and the other normally closed contact is connected to one of the two motors. It is connected to the motor, and among the three normally open contacts, two normally open contacts are short-circuited at each end and connected to the positive side of the power supply, and the other normally open contact is connected to the two normally open contacts. A push switch characterized in that the push switch is connected to another one of the two motors, and a terminal of the connector portion is connected to the two motors.