JPH0253892B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention applies to any drive motor for tilting the mirror surface of an electric remote control mirror for automobiles around a horizontal axis or around a vertical axis. This relates to a control switch for forward or reverse rotation.

[Conventional technology]

In an electric remote control mirror device for an automobile, a motor for tilting a mirror surface in vertical and horizontal directions is disposed within a mirror housing. The vertical tilting of the mirror surface is achieved by rotating one corresponding motor in the normal or reverse direction, and the horizontal tilting is achieved by rotating the other corresponding motor in the normal or reverse direction. Control of forward or reverse rotation of the motors is performed by a control switch including a control circuit disposed between each motor and a power source. The control switch is comprised of an operation switch for tilting the mirror up and down and left and right, and a changeover switch for tilting either the left or right mirror of the vehicle.

Such a control switch was created by the inventor of the present application, and was published in 1982 by the applicant of the present application.
This is disclosed in Japanese Patent Application No. 59-271941 filed on December 26th.

The operation switch has a first fixed contact to be connected to one terminal of the motor A ₁ or B ₁ that tilts the mirror around the horizontal axis, and a pair of fixed contacts connected to the positive and negative poles of the power supply, respectively. A first fixed contact group consisting of a second fixed contact to be connected to one terminal of the other motor A ₂ or B ₂ for tilting about the vertical axis of the mirror and to the positive and negative poles of the power supply, respectively. A second fixed contact group consisting of a pair of fixed contacts to be connected, a third fixed contact group to be commonly connected to the other terminals of the four motors, and a fixed contact group connected to the positive and negative poles of the power supply, respectively. and a third fixed contact group consisting of a pair of contacts. These fixed contact groups are formed on a printed circuit board, and the fixed contacts in each fixed contact group are connected to one of the fixed contact pairs by each bridge member provided corresponding to each group. It is becoming more and more like this. Normally, each fixed contact is connected to the one connected to the negative terminal of the power supply, and only when the bridge member undergoes elastic deformation due to external force, the fixed contact is connected to the positive terminal of the power supply. It is designed to be connected to the fixed contact of

On the other hand, the fixed contact group constituting the changeover switch is also formed on the same printed circuit board, and the fixed contact pairs connected to the first and second fixed contacts constituting the operation switch are connected to each other by conductive sliding members. The motors A ₁ , A ₂ or B ₁ , B ₂ for driving the left and right mirrors are selectively connected to the other two fixed contact pairs connected to one terminal. ing.

Each of the bridge members described above is pressed by a single push plate having up/down and left/right tilt direction indicating portions, and the back surface of the push plate has a taper that contacts the circumferential surface of both ends of each bridge member. A leg portion having a surface is integrally formed. Each bridge member is elastically deformed by the tapered surfaces of the two legs pressing the peripheral surface of the bridge member downward. A box-shaped accommodating portion is formed between the two legs to form a space for accommodating each bridge member, and when the push plate is lowered, each of the legs formed on the back side of the push plate is The tip on the lowered side enters a hole formed on the board, and the lower end of the box-shaped housing portion comes into contact with the top of the printed circuit board.

On the other hand, the mechanism for moving the slide member of the changeover switch on the printed circuit board is such that one end of the operating knob, which is rotatably attached to the printed circuit board, is engaged with the slide member, and the other end is connected to the opening of the push plate. The slide member is configured to be exposed to the outside from the board, and the slide member can slide on the printed circuit board by rotating the knob.

The parts constituting the above-mentioned operating switch and changeover switch are disposed within one casing, and are configured so that switching operations can be performed by operating a push plate and an operating knob.

[Problem that the invention seeks to solve]

The printed circuit board on which the fixed contact group is formed is
Fixed to the bottom of the casing, the push plate is elastically supported by each bridge member via legs with tapered surfaces, with vertical and left/right tilt direction indicators exposed on the top of the casing, and moves within the casing. Since the operating knob constituting the changeover switch is exposed to the outside from the opening of the push plate, there is no possibility of dust entering between the casing and the push plate and from the push plate opening. Adheres near the contacts,
This may cause poor contact between the fixed contact and the bridge member. To this end, an annular packing made of a flexible material is interposed between the push plate and the operating knob, and an edge is provided on the outer periphery of the annular packing to tightly contact the outer periphery of the push plate. There is a structure in which the inner circumference of the gasket is tightly attached to the operating knob. This type of control switch was created by the inventor of the present application and is described in detail in U.S. Pat.

The purpose of the present invention is to prevent foreign matter such as dust and drinking water from entering near the fixed contacts on the printed circuit board without interposing a gasket to prevent dust from entering between the push plate and the operating knob. An object of the present invention is to provide a control switch which can improve the reliability of switching operation by preventing the switching operation.

[Means for solving problems]

In order to achieve the above object, the present invention provides a first motor to be connected to one terminal of a motor for tilting a mirror about a horizontal axis and about a vertical axis.
and a second fixed contact, and a third fixed contact to be commonly connected to the remaining terminals of the motor;
The first to third bridge members disposed correspondingly to each other are disposed in a closed body that houses the first to third bridge members, and the first to third actuating members for operating each bridge member are independently provided, one end of each of which is disposed in a closed body. The push plate is formed on the operating surface that contacts the circumferential surface of the bridge member, and has a structure in which the other end protrudes outside the closing body, and the push plate is supported by the protruding end of the operating member and moves relative to the closing body. It is characterized by being configured so that it is possible.

[Effect]

When the operating knob of the changeover switch, which protrudes outward from the central opening of the push plate, is moved, it is connected to one of the motors that tilts the left and right mirrors. By pushing any of the four direction indicators on the push plate, one or two of the direction indicators disposed within the closure associated with that direction indicator will be activated.
One actuating member is moved under pressure by the push plate to actuate a corresponding one or two bridge members disposed within the closure. Actuation of the corresponding bridge member causes the bridge member to elastically deform and slide, and the corresponding one or two fixed contacts are connected to the positive pole of the power source. This allows either the left or right mirror to be tilted in a specific direction. Each fixed contact, its corresponding bridge member, and its corresponding operating member are housed inside the closing body, and the operating member that operates each bridge member is disposed with one end protruding outside the closing body, so that dust and water can be removed. liquids cannot enter the closure.

〔Example〕

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

In FIG. 1, the main parts of the control switch are shown in cross section. Reference numeral 10 indicates the entire control switch, and reference numeral 12 indicates the outer casing. The control switch 10 is arranged near the driver's seat of the automobile. The outer casing 12 is formed into a rectangular parallelepiped shape with openings at both ends, and a printed circuit board 14 on which a group of fixed contacts, which will be described later, is formed is disposed inside. The printed circuit board 14 is fixed to the holder 15, and the holder 15
is fitted into the outer casing 12.

As shown in FIG. 2, this control switch 10 has an operation switch 16 arranged facing the upper opening 13 of the outer casing 12, which corresponds to four tilting directions of the remote control mirror, that is, up and down and left and right directions. The switch 18 is in the form of a push plate having a direction indicating section provided therein, and a switch 18 for selecting one of the mirrors disposed on the left and right sides of the vehicle body is a switch knob. It is exposed to the outside from the central opening 17 of the push plate 16 in the form of . The four direction indicating portions of the push plate 16 are labeled U, D, L and R, respectively, in FIG. A switching mechanism and a control circuit are provided within the main body of the control switch 10 to rotate the motor that drives the mirror in a specific direction by pushing one of the direction indicating parts of the push plate 16. . The details will be explained below.

FIG. 4 schematically shows the positional relationship between a plurality of fixed contact groups formed on the printed circuit board 14 and bridge members disposed corresponding to them.

The printed circuit board 14 is formed into a substantially rectangular shape, and its upper side corresponds to the U display part of the push plate 16, and its lower, left, and right sides are D, respectively.
Corresponds to L and R display sections. Along the upper side are fixed contacts 20 and corresponding fixed contact pairs 2.
1 and 22 are arranged so as to cover about 1/2 of the top side. Then, the fixed contact 20 is connected to the fixed contact pair 2.
A bridge member 25 is arranged to connect to either one of the contacts 1 and 22, and normally connects the fixed contact 20 and the fixed contact 21. A fixed contact 30 and a fixed contact 31 are arranged adjacent to the fixed contact 20, and a bridge member 35 bridges both the fixed contacts 30 and 31. Similarly, a fixed contact 40 and a corresponding pair of fixed contacts 41 and 42 are arranged along the lower side of the printed circuit board 14 so as to cover about 1/2 of the lower side, and a bridge member 45 is also arranged. Usually, fixed contacts 40 and 41 are connected. A fixed contact 50 is arranged adjacent to the fixed contact 40. A pair of fixed contacts 51 and 52 are disposed corresponding to the fixed contact 50, and a bridge member 55 is further disposed to normally connect the fixed contacts 50 and 51.

Fixed contact 20 and fixed contact pair 21, 22, fixed contact 40 and fixed contact pair 41, 42, fixed contact 50 and fixed contact pair 51, 52, bridge members 25, 4
Reference numerals 5 and 55 constitute a switching mechanism for tilting the mirror in vertical and horizontal directions.

Furthermore, an opening 57 provided in the center of the printed circuit board 14
A fixed contact 60 and a fixed contact 63 are located across the
and a fixed contact 65 are arranged, and the slide member 7
0 is fixed contact 60, fixed contact 63, and fixed contact 65.
The push plate 16 is arranged parallel to the upper or lower side of the push plate 16 so as to be selectively connected to the push plate 16. Similarly, a fixed contact 62, a fixed contact 64, and a fixed contact 66 are arranged, and a sliding member 72 is arranged correspondingly.

These fixed contacts 60, 62, 63, 64, 6
5, 66 and slide members 70, 72 constitute a switching mechanism for tilting either the left or right mirror of the automobile.

Each of the bridge members 25, 35, 45, and 55 is composed of a conductive elastic body formed to have approximately the same size, and both ends of each are formed into rounded sliding contacts, and each has an auxiliary leaf spring arranged inside. are provided to reinforce the elasticity of each bridge member. Further, the slide members 70 and 72 are made of a conductive elastic body with slide contacts at both ends,
As will be described later, these two slide members 7 form a switching member of the changeover switch 18.
0 and 72 are held on a slider so that they can be moved together.

An inner casing 80 having accommodation spaces for accommodating each of the bridge members described above is fixedly held on the printed circuit board 14. The inner casing 80 includes a box-shaped member 81 that accommodates the bridge members 25 and 35 and a box-shaped member 82 that accommodates the bridge members 45 and 55. Each bridge member is housed within a corresponding box-shaped member with their sliding contacts in contact with the printed circuit board 14. Partition walls 86 and 87 are formed in the center of each box-shaped member 81 and 82 to separate and accommodate the bridge member 25 and the bridge member 35 and the bridge member 45 and the bridge member 55, respectively.

The partition wall portion 86 has an inclined surface 86 on the bridge member 25 side.
a is provided with an inclined surface 86b on the bridge member 35 side. Similarly, the partition wall portion 87 has inclined surfaces 87a, 87.
It is equipped with b. The inclined surfaces forming these partition wall portions 86 and 87 are connected to the bridge members 25 and 35, respectively.
The partition wall portions 86 and 87 are in contact with adjacent inner circumferential surfaces of the bridge members 45 and 55, and the lower ends of each of the partition wall portions 86 and 87 face into the openings 90 and 91.

Furthermore, holes 93, 94 and holes 95, 96 are formed at both ends of each box-shaped member 81, 82, respectively. In the holes 93 and 94 of the box-shaped member 81, there are operating rods 100 formed so as to contact the circumferential surfaces of the bridge members 25 and 35 on the fixed contacts 21 and 31 side, respectively.
102 is inserted. Similarly, the holes 95 and 96 of the box-shaped member 82 have fixed contacts 41 and 51, respectively.
Operating rods 104, 106 formed to contact the peripheral surfaces of the side bridge members 45, 55 are inserted. Each operating rod 100, 102, 104, 10
6 is formed to be movable with respect to the inner housing 80, and one end of each is formed into a smoothly sloped surface within the box-shaped member, and is in contact with the circumferential surface near the slide contact of the corresponding bridge member, and has a tip end. The portions face holes 110, 112, 114, and 116 formed on the printed circuit board 14. On the other hand, the other end of each actuating rod extends to the outside of the inner housing 80, and the push plate 1
4 actuating rods 100, 102, 104, 10 with 6
It is supported by the protruding end of 6. In order for the push plate 16 to be supported in a horizontal state, it is necessary to keep the volume of each actuating rod equal. Stoppers 120, 122 and 124, 126 are formed which come into contact with. These stops are shown in FIG.

The push plate 16 has a pair of vertical walls 16 extending perpendicularly from a location along the edge of the central opening 17 on the back surfaces of the L display section and the R display section.
a, 16b, and their lower ends meet the opening 85 of the inner housing 80 when the stopper of each actuating rod is in contact with the inner wall of the box-shaped member.
The inner housing is completely engaged with tapered surfaces 80a and 80b formed on the back surface of the inner housing. For example, when the R display part of the push plate 16 is pressed, the lower end of the rear vertical wall 16b on the R display part side of the push plate 16 is completely separated from the tapered surface 80b on the back surface of the inner housing, and the push plate 16 is pressed. The vertical wall 16a on the L display side and the tapered surface 80a on the back surface of the inner housing are completely engaged, and the engaged point S
It will rotate around the center. As a result, the R display part side of the push plate 16 is lowered by the stroke l, and the inclined surfaces of the actuating rods 100, 106 corresponding to the R display part press the circumferential surfaces of the bridge members 25, 55, respectively. While descending. At that time, the bridge members 25 and 55 are elastically deformed, and each sliding contact is connected to the fixed contact 2.
1, 51, fixed contacts 22, 52, respectively.
come into contact with. Similarly, when the L display section is pressed, the lower end of the vertical wall 16a of the push plate 16 is completely separated from the tapered surface 80a, and the vertical wall 16b on the R display section side is completely engaged with the tapered surface 80b. , rotate around the engaged part, and the L display side descends by stroke l,
Press the actuating rods 102, 104. As a result, the corresponding bridge members 35 and 45 are elastically deformed,
The sliding contact of the bridge member 45 is the fixed contact 41
The contact point 42 is moved away from the contact point 42 and contacts the fixed contact point 42 . When the U display section or the D display section is further pressed, the vertical walls 16a and 16b of the push plate engage the ends of the box-shaped member 82 or box-shaped member 81 with the tapered surfaces 80a and 80b, respectively. It is designed to rotate in the upright position. As a result, the U display section side or the D display section side of the push plate 16 is lowered by the stroke l, and the actuating rod 100, 102 or 104, 106 is tilted corresponding to the U display section or the D display section. The faces are respectively bridge members 25, 35 or 4.
It descends while pressing the peripheral surfaces of 5 and 55. At that time, the bridge members 25 and 35 are elastically deformed, the slide contact that is in contact with the fixed contact 21 is brought into contact with the fixed contact 22, the bridge members 45 and 55 are also elastically deformed, and each slide contact is the fixed contact 41, 51 and contact fixed contacts 42 and 52, respectively. In this embodiment, the fixed contacts 30 and 31 and the bridge member 35 are not used as components of a control circuit for switching as will be described later, but as a dummy to improve the well-balanced operability of the push plate 16. It is used. Practically, it is very important to arrange the four bridge members and the four actuating rods symmetrically in the above sense, so that when the driver presses which direction indicator on the push plate 16, But getting the same feeling of pressure will help the safety movement. Further, when pressing the push plate 16, a tactile feeling is required, and from this point of view, the shape of the inclined surface of each actuating rod must be appropriately selected. This tactile feeling, that is, when the push plate 16 is pressed, if the push plate descends beyond a certain distance, the force of the corresponding bridge member to push up the plate becomes smaller, causing the driver to feel a contact sensation. In order to achieve this, the contact angle between the inclined surface of each actuating rod and the peripheral surface of the corresponding bridge member, that is, the angle that the tangential plane makes with the printed circuit board, must be shaped so that it gradually changes within 45 degrees from the tip of the actuating rod. It is only necessary to form it. For example, W is the spring pressure of one bridge member, P ₁ is the force of one bridge member pushing up the push plate,
If θ is the angle between the peripheral surface of the bridge member and the printed circuit board at the point where it contacts the actuating rod, then P ₁ =
If Wsinθ・cosθ, r is the frictional force between the printed circuit board and the bridge member or the frictional force between the actuating rod and the bridge member, the force P pushing the push plate is P
=2(P ₁ +r)=2r+2klcos ² θ. However, k is the spring constant of the bridge member, and l is the distance (stroke) that the push plate descends. Here, θ needs to be 45 degrees or less, and if it is 45 degrees or more, r will become large, which is inappropriate.

Constituting the control switch of the present invention,
The control circuit for adjusting the tilting of the mirror surface is the ninth
As shown in the figure. Fixed contact pair 21, 22; 4
1, 42; Fixed contacts 21, 4 among 51, 52
1 and 51 are each connected to the negative pole of the power source 23, and the fixed contacts 22, 42, and 52 are each connected to the positive pole. The fixed contact 20 corresponding to the fixed contact pair 21 and 22 is connected to the fixed contact 60 and selectively connected to the fixed contact 63 or 65 via the slide member 70. The fixed contact 63 is connected to one terminal of the motor A 1 for tilting the left side mirror 120 of the car about the horizontal axis, and the fixed contact 65 is connected to one terminal of the motor A ₁ for tilting the right side mirror 122 of the car about the horizontal axis. Connected to one terminal of B ₁ . The fixed contact 40 corresponding to the fixed contact pair 41 and 42 is connected to the fixed contact 62 and connected to the fixed contact 64 or 6 via the slide member 72.
6. The fixed contact 64 is connected to one terminal of the motor A ₂ for tilting the left-hand mirror 120 of the vehicle about the vertical axis, and the fixed contact 66 is connected to one terminal of the motor A 2 for tilting the right-hand mirror 122 of the vehicle about the vertical axis.
Connected to one terminal of B ₂ . Furthermore, a fixed contact 50 corresponding to the fixed contact pair 51 and 52
are commonly connected to the remaining terminals of motors A ₁ , A ₂ , B ₁ , and B ₂ . These connections are actually printed wiring on the printed circuit board as shown in FIG. A connection to the negative pole of the power supply 23 is made via a terminal 130, and a connection to the positive pole is similarly made via a terminal 132. Furthermore, the fixed contacts 63, 64, 65, and 66 are connected to one terminal of the motor through terminals 132 and 66, respectively.
134, 136, 138, and the connection of fixed contact 50 to the remaining terminals of the motor is made via terminal 140. These terminals 13
0, 132, 134, 136, 138, and 140 are embedded in the holder 15, one end of each is fitted into a hole formed in a corresponding location of the printed circuit board 16, and the other end is connected to the negative and positive terminals of the power supply. and connected to the terminals of each motor.

The control switch of the present invention includes:
The configuration of the changeover switch 18 for tilting either the left or right mirror of the automobile will be explained.

The changeover switch 18 is rotatably attached to a support 150 fixed to the holder 15. The support body 150 has a pair of ribs 152, which pass through a central opening 160 of the printed circuit board 14 and protrude toward the fixed contact side of the printed circuit board 14, and which are formed on the main body of the switch 18. A pair of protrusions are supported by a pair of small holes in the rib 152. The slide members 70 and 72 are sliders 154
housed within two elongated compartments formed in the
When the slider 154 moves, the two slide members 70 and 72 move simultaneously. An opening 156 is located approximately in the center of the slider 154.
is provided, and the shaft portion 18 of the changeover switch 18
0 is inserted through this opening and its lower end movably engages with a guide path 158 fixed to the holder 15. That is, within the shaft portion 180 there is a compression coil spring 1.
81 and a ball 182 are disposed, and a portion of the ball 182 is held in a state slightly projecting outward from the lower end of the shaft portion 180. Further, a cut groove 183 is formed at the tip of the shaft portion 180 and engages with a guide path 158 fixed to the support body 150. The state shown in FIG. 6 is the neutral position, where the ball 182
is against the elastic force of the coil spring 181 and the shaft portion 180
The ball 182 is in a state of being pushed into the inside of the ball 182, and a part of the ball 182 is in contact with the guide path 158. On the other hand, the operating knob 184 of the changeover switch 18 is inserted through the central opening 85 of the inner housing 80 and protrudes outward from the central opening 17 of the push plate 16. When this operating knob 184 is rotated from the neutral position toward the R display side, the shaft portion 183 pushes the opening wall of the slider 154 and the slider 15
4 slides to the L display side, and on the other hand, turn the knob 184.
When the slider 154 is rotated toward the L display section, the slider 154 is configured to slide toward the R display section. At this time, fixed contacts 60 and 62 are connected to fixed contacts 63 and 64 or fixed contacts 65 and 66, respectively.

Next, the operation of the control circuit using the control switch according to the present invention will be explained.

First, the mirror 12 installed on the left side of the car
0, the operation knob 184 of the changeover switch 18 is rotated toward the R display portion of the push plate 16. As a result, the fixed contacts 60, 6
2 are connected to fixed contacts 63, 63, respectively.
Since the fixed contacts 60 and 62 are connected to one terminal of motor A ₁ and motor A ₂ , respectively,
Those terminals will be connected to the negative pole of the power supply 23. Since the fixed contact 50 is always commonly connected to the remaining terminals of the motors A ₁ , A ₂ , B ₁ , and B ₂ , the remaining terminals of the motors A ₁ and A ₂ are connected to the negative pole of the power source 23 . That will happen. In this state, all terminals of motors A ₁ and A ₂ are connected to the negative pole of power supply 23.

Thereafter, by pressing one of the display parts of the push plate 16 with a finger, either the motor A ₁ or A ₂ can be rotated forward or reverse.

For example, set the U display part of the push plate to
When pushed in the direction of the arrow in Figure 1, the corresponding actuating rod 10
0,102 is lowered, the actuating rod 100 acts on the bridge member 25 to elastically deform it, and the fixed contact 20 is connected to the fixed contact 22 connected to the positive pole of the power source 23. Therefore, as shown in FIG. 13, the fixed contact 63 connected to one terminal of motor A ₁ has a positive potential, and the fixed contact 64 connected to one terminal of motor A ₂ has a positive potential.
is a fixed contact 50 connected to negative potential and commonly connected to the other terminals of motors A ₁ , A ₂
is held at a negative potential, and as a result, a current flows through the motor _A1 from the fixed contact 63 to the fixed contact 50, causing the motor _A1 to rotate in the normal direction and causing the mirror 120 to tilt upward. ing. The two terminals of motor _A2 are held at a negative potential and are therefore inactive.

Next, when you press the D display, the corresponding actuating rod 104
and 106 act on the bridge members 45 and 55, respectively, to elastically deform the bridge members 45 and 55. At this time, fixed contacts 40 and 50
are connected to fixed contacts 42 and 52, respectively, which are both connected to the positive pole of power supply 23. Therefore,
The fixed contact 63 connected to one terminal of motor A ₁ is at negative potential, and the one terminal of motor A ₂ is
Since the fixed contact 64 connected to the two terminals is held at a positive potential and the fixed contact 50 is also held at a positive potential, a current flows from the fixed contact 50 to the fixed contact 63 in the motor _A1 . The motor _A1 is reversed and the mirror 120 is tilted downward. The two terminals of motor _A2 are at the same positive potential, so they do not operate.

Next, when you press the L display, the corresponding actuating rod 102
and 104 are actuated, bridge members 35 and 45 are elastically deformed, and fixed contact 40 is held at a positive potential.

Therefore, the fixed contact 63 is held at a negative potential, the fixed contact 64 is held at a positive potential, and the fixed contact 50 is held at a negative potential, so that as a result, a current flows from the fixed contact 64 to the fixed contact 50 in the motor _A2 . , rotates motor A ₂ forward, and rotates mirror 1.
20 tilts to the left. The two terminals of motor _A1 are at the same negative potential and therefore do not operate. Note that when the U display section and the D display section are pressed, the bridge member 35 is elastically deformed, but since it is a dummy, it does not contribute to switching.

Similarly, when the R indicator is pushed in the direction of the arrow in FIG. 12, the actuating rods 100 and 106 elastically deform the bridge members 25 and 55, respectively. At this time, the fixed contact 63 is held at a positive potential, the fixed contact 64 is held at a negative potential, and the fixed contact 50 is held at a positive potential, so that as a result, the motor A ₂
A current flows from the fixed contact 50 to the fixed contact 64, causing the motor _A2 to reverse and tilting the mirror 120 to the right. It can be seen that the two terminals of motor _A1 do not operate because they have the same positive potential.

Mirror 1 installed on the right side of the car body
22, the operation knob 184 of the changeover switch 18 is rotated toward the L display portion of the push plate 16. As a result, the fixed contact 60,
62 to the fixed contacts 64 and 65, respectively, and then perform the same operation as described above.

The control switch of the present invention can tilt a predetermined mirror only while pressing any one of the four direction indicating parts U, D, L, and R of the push plate 16. If the operating knob 184 is held at a neutral position as shown in FIG. 1, the motor can be configured so that it will not operate even if the direction indicator is accidentally touched.

In this embodiment, four bridge members 2
5, 35, 45, 55 are formed into uniform sizes,
Although the distances between the fixed contacts corresponding to the bridge members 25, 45, and 55 and the fixed contact pairs are set to be substantially equal, the fixed contact pairs 51 and 5
The distance c between the fixed contact pairs 21 and 22 is the distance a between the fixed contact pairs 21 and 22, and the distance b between the fixed contact pairs 41 and 42.
It is desirable that the value be set smaller than either of the above. That is, the distance between each fixed contact pair may be set so that c<a and c<b. Ideally, the configuration should be such that when the D display part or the R display part of the push plate 16 is pressed, the fixed contacts 62 and 50 or the fixed contacts 60 and 50 are connected to a positive potential at the same time. However, in reality, there is a slight time difference and one of them is connected to the positive potential first, but if c<a and c<b are configured, the fixed contact 50 is connected to the fixed contact 62 or the fixed contact. It becomes a positive potential before 60, and malfunction can be completely prevented.

〔Effect of the invention〕

As explained above, the control switch of the present invention includes a fixed contact on a printed circuit board, a bridge member for selectively connecting the fixed contact to the negative pole and the positive pole of the power supply, and the bridge member that operates the bridge member. The actuating member and the actuating member are housed in one closing body, one end of each actuating member is arranged to protrude outside the closing body, and the protruding end is pressed by the push plate, so that the fixed contact and the bridge member This prevents dust and liquids such as water from entering and adhering to the contact area, which has the effect of improving the reliability of the switching operation.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing one embodiment of the control switch of the present invention, Fig. 2 is a perspective view showing the entire control switch of Fig. 1, Fig. 3 is an exploded perspective view, and Fig. 4 is a contact structure. FIG. 5 is a rear view of the closure housing the bridge member; FIG.
The figure is a sectional view taken along the - line in Fig. 2, Fig. 7 is a sectional view taken along the - line in Fig. 2, Fig. 8 is an explanatory diagram of the operation of the push plate and the actuating rod, and Fig. 9 is a sectional view taken along the - line in Fig. 2. FIG. 10 is a plan view showing a control circuit formed on a printed circuit board; FIGS. 11 and 12 are diagrams explaining the operation of the operating switch in the control switch of the present invention; FIG. FIG. 13 is an explanatory diagram of the operation of the control circuit. 10... Control switch, 12... Outer casing, 14... Printed circuit board, 15...
...Holder, 16...Push plate, 18...
...Changing switch, 20, 21, 22... Fixed contact, 25... Bridge member, 40, 41, 42...
...Fixed contact, 45...Bridge member, 50,5
1, 52... fixed contact, 55... bridge member,
60, 62, 63, 64, 65, 66... Fixed contact, 70, 72... Slide member, 80... Closing body, 81, 82... Box-shaped part, 100, 102,
104, 106... Operating rod, 120, 122...
Mirror, 150... Support, 152... Rib, 1
54...Slider, 184...Operation knob.

Claims (1)

[Scope of Claims] 1. A control switch for remotely tilting one of two rotatably supported left and right electric remote control mirrors for an automobile around a horizontal axis or around a vertical axis, the control switch comprising: an operation switch comprising a push plate facing an opening of a casing, on which four direction indicating parts are arranged in upper and lower and left and right positions; a control switch for tilting either one of the left and right mirrors, the control switch being arranged with an operation knob protruding from a central opening of the control switch; a first fixed contact and a second fixed contact to be selectively connected to one terminal of the motor through the changeover switch for tilting the motor about the vertical axis, and commonly connected to the remaining terminals of the motor; A first fixed contact made of a conductive elastic body is arranged on the printed circuit board, and the first to third fixed contacts are selectively connected to the negative pole and the positive pole of the power supply, respectively. The first to third bridge members are disposed corresponding to the first to third fixed contacts, and the first to third bridge members are arranged such that the first to third fixed contacts are normally connected to the negative pole of the power source, respectively. A closing body for holding the member and storing the member so that at least one end thereof is in a slidable state is fixedly disposed with respect to the printed circuit board, and one end is attached to the circumferential surface of each of the first to third bridge members. first to third actuating members formed on the contacting actuating surfaces and having other ends movably protruding to the outside of the closing body are disposed independently, and the push plate is connected to the first to third actuating members 3. The upper and lower direction indicating parts of the push plate are supported by the other end of the third operating member and movable relative to the closure body, and the upper and lower direction indicating parts of the push plate are connected to the first operating member or the second and third operating members. the left and right direction indicating parts are arranged in relation to either the second actuating member or the first and third actuating members; When one of the direction indicators is pressed, the actuating member associated with the direction indicator slides one end of the corresponding bridge member to connect the fixed contact corresponding to the bridge member to the positive pole of the power source. A control switch for an automobile electric remote control mirror.