JPH08212870A - Switch device - Google Patents

Abstract

PURPOSE: To provide a switch device with good operation feeling. CONSTITUTION: In a printed circuit board 1, dummy patterns 2, 3 are formed between the fixed contacts 63a, 64a of fixed contact parts 63, 64. The dummy patterns 2, 3 are formed with a prescribed space from the fixed contacts 63a, 64a. The space is set to a space such that movable contacts 39, 40 are never caught by the fixed contacts 63a, 64b when slid. The dummy patterns 2, 3 are formed in the same thickness as the fixed contacts 63a, 64a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch device for an electric mirror.

[0002]

2. Description of the Related Art FIG. 6 is a plan view of a switch device 30 provided in a driver's seat for adjusting the inclination of a door mirror of an automobile. Body 3 of electric mirror switch device 30
1 is provided with a selection knob 32 for selecting the driver side door mirror and the passenger side door mirror, and a direction indicating knob 33 for adjusting the tilt of the mirror.
The selection knob 32 is a slide switch, and when it is operated to the R side shown in FIG. 6, the driver side (right side) door mirror,
When operated to the L side, the passenger side (left side) door mirror is selected. Then, when the direction indicating knob 33 that is instructed to swing is operated in the direction of the triangular mark,
The selected door mirror can be tilted in the operation direction. Note that the selection knob 32 has R and L
If you do not operate on either side, that is, if you operate to the intermediate position,
Even if the direction indicating knob 33 is operated, the tilt of the mirror cannot be changed.

As shown in FIG. 8A, the switch device 3
A case 34 to which the body 31 is attached is provided at 0, and the direction indicating knob 33 is swingably supported by a ball bearing portion 35 formed on the case 34. An operation shaft 36 is formed on the lower surface of the direction indicating knob 33.
The operation shaft 36 is movable according to the operation of the direction indicating knob 33 to which the contact actuating body 37 is attached.
A compression coil spring 38 is arranged between the contact actuation body 37 and the ball bearing portion 35.

The contact actuator 37 has two movable contacts 3
9, 40 are provided. As shown in FIG. 8 (b),
The movable contacts 39, 40 are pressed against the printed wiring board 42 by the compression coil spring 41 housed in the contact actuation body 37, and the printed wiring board 4 is operated according to the operation of the direction indicating knob 33.
It is designed to slide over 2.

As shown in FIG. 9, the switch device 30 includes
It is composed of three switches 43 to 45. The switch 43 can be switched based on the operation of the selection knob 32. The switch 44 and the switch 45 are designed to operate in conjunction with each other.
Switching is performed based on the operation of 3.

Further, the switch device 30 is provided with connection terminals 46 to 52 for connecting to the outside thereof.
The switch 43 is connected to the motor 5 via the connection terminals 46 to 49.
3 to 56 are respectively connected to one end of each motor 53 to 5
The other end of 6 is commonly connected and is also connected to the switch 44 via the connection terminal 50.

The switches 44 and 45 are respectively connected to a positive side terminal of a battery (not shown) via a connection terminal 51, and are connected to a negative side terminal of the battery, that is, grounded via a connection terminal 52. Also, the switch 45
Are connected to the switch 43.

The motor 53 is provided to tilt the right side door mirror and the motor 54 to tilt the left side door mirror in the vertical direction. The motor 55 is provided for tilting the right side door mirror and the motor 56 is for tilting the left side door mirror in the left-right direction. Each of the motors 53 to 56 is a DC motor, and tilts each door mirror leftward or rightward (upward or downward) depending on the rotation direction thereof. That is, by switching the switch 43, the left motor 53, 55 or the right motor 54, 56 is selected. Then, the switch 45 selects the vertical motor 53 (54) or the horizontal motor 55 (56), and the direction of the current flowing through the selected motors 53 to 56 together with the switch 44 is determined. Then, since the motors 53 to 56 rotate in the flowing direction,
Each door mirror tilts in a direction based on the rotation direction of each motor 53-56.

As shown in FIG. 7, a wiring pattern 61 having a predetermined shape is formed on the insulating substrate 60 of the printed wiring board 42, and the wiring pattern 61 in a portion surrounded by a two-dot chain line in FIG. Are fixed contacts of the fixed contact portions 62 to 64. The switches 43 to 45 have fixed contact portions 62 to 6
4 and movable contacts 39, 40, 65, 66 that slide on the fixed contact portions 62 to 64. That is, the switch 43 includes the fixed contact portion 62, the movable contact 65,
66 and 66. The switch 44 is composed of a fixed contact portion 63 and a movable contact 39, and the switch 45 is composed of a fixed contact portion 64 and a movable contact 40.

On the insulating substrate 60, the connection terminal 46 is
To 52 are formed and are electrically connected to the fixed contacts 62a to 64a in the fixed contact portions 62 to 64, respectively. The connection terminals 46 to 52 and the wiring pattern 61 are made of copper and are formed together.

Movable contact 3 which constitutes switches 44 and 45
As described above, the reference numerals 9 and 40 are biased to the positions indicated by the broken lines in FIG. 7 by the compression coil springs 38 when the direction indicating knob 33 is not operated, and the fixed contacts 63a and 64a in the fixed contact portions 63 and 64, respectively. Are formed at predetermined intervals in the left-right direction and the up-down direction (the left-right direction and the up-down direction in FIG. 7) with respect to the biased movable contacts 39, 40. When the movable contacts 39, 40 move in the left-right direction or the up-down direction in accordance with the operation of the direction indicating knob 33 and move to the position shown by the alternate long and short dash line in FIG. 7, the fixed contacts 63a, 64a in that direction are respectively connected. It is like this. For example, when the movable contacts 39 and 40 move upward in FIG. 7 based on the operation of the direction indicating knob 33, the movable contact 39 connects the fixed contact 63a and the movable contact 40 connects the fixed contact 64a.

The wiring pattern 61 on the printed wiring board 42 is covered with a resist (not shown) formed on the surface other than the connection terminals 46 to 52 and the fixed terminal portions 62 to 64.

The printed wiring board 42 has mounting holes 6 for attaching the printed wiring board 42 to the case 34.
5 is formed. Further, the printed wiring board 42 has
A through hole 66 is formed. In general, fixed contact 62a
The wiring pattern 6 is formed on the surface of
1, and the plating of nickel or gold is formed by a process such as electroplating. The plating formed on the fixed contacts 62a to 64a prevents corrosion of the fixed contacts 62a to 64a made of copper or the like, and reduces sliding resistance to the movable contacts 39, 40, 65, 66 to reduce the sliding contact. 65 and 66 are formed to facilitate sliding. The fixed contacts 62a to 64a and the wiring pattern 61 are electrically separated by the through hole 66 so as to correspond to the wiring of FIG.

[0014]

By the way, the fixed contacts 62a to 64a are formed on the insulating substrate 60 at predetermined intervals. Therefore, the movable contacts 39 and 40 are
It slides on the insulating substrate 60 based on the operation of the direction indicating knob 33. Then, as shown in FIG. 10, when the movable contact 40 moves in the direction of the arrow C, the movable contact 40 may be caught on the fixed contact 64a.
There is a problem that the operation feeling of the direction indicating knob 33 is not good.

Further, as shown by the chain double-dashed line in FIG. 10, one end of the movable contact 40 may jump up from the printed wiring board 42. Then, the movable contact 40 and the printed wiring board 42 may hit each other due to the elastic force of the compression coil spring 41, which may cause a noise, so that the direction indicating knob 3 is also used.
There is a problem that the operation feeling of No. 3 is not good.

The present invention has been made to solve the above problems, and an object thereof is to provide a switch device having a good operation feeling.

[0017]

In order to solve the above problems, the invention according to claim 1 is such that a fixed contact formed on an insulating substrate and sliding on the fixed contact based on an operation of a knob. Then, in the switch device provided with the movable contact for contacting and separating the fixed contact, the gist is that a dummy pattern is formed between the fixed contacts on the insulating substrate.

The invention according to claim 2 is characterized in that the dummy pattern is made of the same material as the fixed contact and is formed at the same time when the fixed contact is formed. The invention according to claim 3 is characterized in that the dummy pattern is formed to have the same thickness as the fixed contact.

[0019]

Therefore, according to the first aspect of the invention, the dummy pattern is formed between the fixed contacts, and the movable contact slides on the dummy pattern to move between the fixed contacts.

According to the second aspect of the invention, the dummy pattern is formed of the same material as the fixed contact, and is formed simultaneously with the fixed contact. According to the third aspect of the invention, the dummy pattern is formed to have the same thickness as the fixed contact.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. In this embodiment, the same members as those in the prior art are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 1, dummy patterns 2 and 3 are formed on the printed wiring board 1 of this embodiment.
The dummy pattern 2 is formed between the fixed contacts 63a of the fixed contact portion 63, and the dummy pattern 3 is formed between the fixed contacts 64a of the fixed contact portion 64. The dummy patterns 2 and 3 are formed so as to be separated from the fixed contacts 63a and 64a at a predetermined interval, and the interval is the movable contact 3
The intervals are set so that the fixed contacts 63a and 64a are not caught when the 9 and 40 slide. The dummy patterns 2 and 3 are formed to have the same thickness as the fixed contacts 63a and 64a. Therefore, the movable contacts 39, 40 are
When sliding, it does not fall from the fixed contacts 63a and 64a by the dummy patterns 2 and 3 as shown in FIGS. 2 and 3, so that the fixed contacts 63a and 64a are not caught.

The dummy patterns 2 and 3 are formed so as not to be electrically connected to the fixed contacts 63a and 64a. When the dummy pattern 3 is connected to the fixed contact 64a, when the movable contact 40 moves based on the operation of the direction indicating knob 33, the two motors 53 to 56 are selected and the mirror which is not desired to be tilted is tilted. There is a possibility that it will end up. Therefore, the fixed contact 63 is fixed by the movable contacts 39 and 40 which slide by the operation of the direction indicating knob 33.
a, 64a and the dummy patterns 2 and 3 are connected,
Since the dummy patterns 2 and 3 are not connected to others, the motors 53 to 56 other than the operation direction do not operate.

The dummy patterns 2 and 3 include the wiring pattern 61, the fixed contacts 63a and 64a, and the connection terminals 46 to 46.
A fixed terminal 63 made of the same material as 52 (for example, copper)
It is formed by the same process as a, 64a and the like. Therefore, the dummy patterns 2 and 3 are fixed contacts 63a and 64a.
It is formed with the same thickness as. Therefore, since the number of steps for manufacturing the printed wiring board 1 does not increase, it is possible to prevent the cost of the printed wiring board 1 from increasing due to the increase in the number of steps.

As described above, according to the switch device of the present embodiment, the fixed contacts 63a, 6a are formed between the fixed contacts 63a, 64a formed on the insulating substrate 60 of the printed wiring board 1.
Dummy patterns 2 and 3 having the same thickness as 4a are formed, and the movable contacts 39 and 40 are fixed contacts 63a and 64a from above the dummy patterns 2 and 3 based on the operation of the direction indicating knob 33.
I tried to move each to the top. As a result, the movable contacts 39 and 40 are fixed by the dummy patterns 2 and 3.
Since it does not fall from 3a and 64a, the movable contact 3
The operation feeling of the direction indicating knob 33 can be improved without the 9 and 40 being caught.

The present invention may be modified as follows, and in that case, the same operation and effect can be obtained. 1) In the above embodiment, the dummy patterns 2 and 3 are provided between the fixed contacts 63a and 64a. However, as shown in FIG. 4, the movable contact points 39 and 40 are not caught or slid. The dummy patterns 2 and 3 may not be provided at the positions where one ends of the movable contacts 39 and 40 do not bounce depending on the direction.

2) In the above embodiment, the dummy patterns 2 and 3 are formed in advance in a state of being separated from the fixed contacts 63a and 64a. However, as shown in FIG. 5, the dummy patterns 2 and 4 are formed as fixed contacts 63a and 64a. It may be formed in a connected state. In the case of this configuration, before the printed wiring board 1 is used, it is separated from the wiring pattern 61 by making holes like the wiring pattern 61. According to this configuration, the dummy patterns 2 and 3 can be plated with gold or the like similarly to the fixed contacts 63a and 64a, so that corrosion of the dummy patterns 2 and 3 can be prevented and the movable contacts 39 and
The sliding resistance of 40 can be reduced.

3) In the above embodiment, the dummy pattern 2,
Although 3 is made of the same material as the fixed contacts 63a, 64a, etc., it may be made of another conductive material. Also,
The dummy patterns 2 and 3 may be formed by an insulating material such as resist or silk printing. In this case, it is not necessary to open between the fixed contacts 63a and 64a and the dummy patterns 2 and 3. Further, when the resist or silk printing is used, the dummy patterns 2 and 3 can be formed in the step of forming the printed wiring board 1, so that the dummy patterns 2 and 3 can be manufactured in the same step as the conventional one.

4) In the above embodiment, the dummy pattern 2,
3 has the same thickness as the fixed contacts 63a and 64a,
The dummy patterns 2 and 3 may be formed by forming the movable contacts 39 and 40 in such a thickness that the fixed contacts 63a and 64a are not caught.

5) In the above embodiment, the switch device 30 is provided with the selection knob 32 to select the driver side door mirror and the passenger side door mirror. However, the direction indicating knob 33 is provided for each door mirror. May be respectively provided and implemented.

6) In the above embodiment, the switch device 30 for the electric mirror is embodied, but it is embodied in another switch. Although one embodiment of the present invention has been described above, technical ideas other than the claims that can be understood from the above embodiment will be described below along with their effects.

A) The switch device 30 is connected to the motors 53 to 56 for tilting the door mirror, and the knob 32,
According to the operation of 33, the selection of one of the motors 53 to 56 is selected, and the direction of the current flowing through the selected motors 53 to 56 is set. With this configuration, the door mirror can be easily tilted.

[0033]

As described in detail above, according to the invention described in claim 1, since the dummy pattern is formed between the fixed contacts and the movable contact slides on the dummy pattern, the fixed contact is not moved. You can prevent depression.

According to the second aspect of the invention, since the dummy pattern is formed of the same material as the fixed contact and is formed at the same time as the fixed contact, the dummy pattern can be easily formed.

According to the invention of claim 3, since the dummy pattern is formed to have the same thickness as the fixed contact,
It is possible to prevent falling from the fixed contacts.

[Brief description of drawings]

FIG. 1 is a plan view of a wiring board according to an embodiment of the present invention.

FIG. 2 is a partial cross-sectional view of a switch device using a wiring board according to an embodiment.

FIG. 3 is a partial cross-sectional view of a switch device using a wiring board according to an embodiment.

FIG. 4 is a partial plan view of a wiring board of another example.

FIG. 5 is a partial plan view of a wiring board of another example.

FIG. 6 is a plan view of a switch device for an electric mirror.

FIG. 7 is a plan view of a conventional wiring board.

8A is a cross-sectional view of a switch device, and FIG. 8B is a partial cross-sectional view.

FIG. 9 is a wiring diagram of an electric mirror.

FIG. 10 is a partial cross-sectional view of a conventional switch device using a wiring board.

[Explanation of symbols]

1 ... Printed wiring board, 2, 3 ... Dummy pattern, 39,
40 ... Movable contact, 32 ... Knob for selection as knob, 33
... Direction indicator knob as knob, 60 ... Insulating substrate, 63
a, 64a ... Fixed contact.

Claims (3)

[Claims] 1. Fixed contacts (63a, 64a) formed on an insulating substrate (60), and said fixed contacts (63a, 64a) based on the operation of a knob (34).
64a) and a movable contact (39, 40) that slides on the fixed contact (63a, 64a) and separates from the fixed contact (63a, 64a). The switch device which formed 3). 2. The dummy patterns (2, 3) are made of the same material as the fixed contacts (63a, 64a),
The switch device according to claim 1, wherein the fixed contacts (63a, 64a) are formed simultaneously when they are formed. 3. The switch device according to claim 1, wherein the dummy patterns (2, 3) are formed to have the same thickness as the fixed contacts (63a, 64a).