JPH0235155Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a multi-dimensional changeover switch which is applied to, for example, a device for adjusting the angles of the left and right rearview mirrors of an automobile vertically and horizontally.

Conventional mirrors of this kind have one four-way changeover switch for each of the left and right rearview mirrors, which can switch between four directions, for example, up, down, left, and right.

However, since such conventional switches must be equipped with two four-way switching switches, the overall size is unavoidable, and as a result, they cannot be configured compactly and require a large space for installation. There were other drawbacks.

In order to improve this, Utility Model Application No. 55-131035,
Japanese Patent No. 55-131037 proposes a switch that can perform multiple switching using two types of switch elements provided within the switch and an operating lever that can tilt and move forward and backward. This switch has an operating lever that protrudes forward through a ball-and-socket joint provided on the front wall of the switch case.
A first sliding body that comes into contact with and separates from the second switch element is disposed, and an arm is installed in the middle of the operating lever that corresponds to the front or rear of the ball joint, and a first sliding member that comes into contact with and separates from the second switch element as the operating lever advances and retreats. 2 sliding bodies are provided. However, if a ball joint is used to hold the operating lever so that it can tilt and move forward and backward, the switch case wall lacks strength, so it needs to be reinforced, and since the ball joint is incorporated, the number of parts increases, resulting in high costs. Become. It is an object of the present invention to provide a multi-way changeover switch which has a switching capacity equivalent to, for example, two four-way changeover switches with a single switch.

In order to achieve the above object, the present invention enables circuits to be switched in multiple ways by operating a control lever without using a ball and socket joint. That is, the housing has an opening at the front, an operating member that extends forward from the inside of the housing through the opening and can be tilted and moved back and forth, and is located at the rearmost part of the housing and has a plurality of contacts on the front. a first printed circuit board and a housing disposed in a direction perpendicular to the first printed circuit board;
and a second printed circuit board having a plurality of contact points on an inner surface thereof, and a through hole disposed in front of the first printed circuit board and into which an enlarged rear end portion of the operating member is inserted; a first sliding body having a contact that slides along the first printed circuit board by a tilting operation of the member and selectively comes into contact with and separates from the contacts of the printed circuit board; and a first sliding body disposed inside the second printed circuit board. a second sliding body having a contact that is provided and that slides along a second printed circuit board and selectively comes into contact with and separates from contacts of the printed circuit board by moving the operating member forward and backward; an overhang formed in a direction substantially at the center in a direction orthogonal to the axis of the operating member and inserted into the cavity of the second sliding body to serve as a tilting fulcrum of the operating member; and a spring that is compressed in the space at the abutting position and gives the operating member a tendency to always protrude forward.

When the operating lever is tilted, the operating lever is tilted using the overhang as a fulcrum, causing the first sliding body to slide along the first printed circuit board to switch the circuit by the first contact group, and pushing the operating lever; Alternatively, by pulling the second sliding body along the second printed circuit board, it is possible to switch the circuit using the second contact group.

Next, the present invention will be specifically explained based on the drawings.

Fig. 1 is a perspective view of the multi-directional switch of the present invention, Fig. 2 is a vertical cross-sectional plan view of the operating member shown in Fig. 1 in a tilted state, and Fig. 3 is a longitudinal cross-sectional view of the operating member in the neutral position pushed in. FIG.

In Figures 1 to 3, reference numeral 1 denotes a housing made of electrically insulating material such as synthetic resin, and has a cross-shaped opening 2 formed approximately in the center of the front wall, and holes 3 at the rear of both left and right walls. It is formed. A front chamber 4 with a small cross-sectional area is formed at the front of the interior of the housing 1, and as shown in FIG. 5, 5 are formed respectively. There are also guide grooves 6, 6 on both the upper and lower surfaces of the front chamber 4 extending from the right wall of the housing 1 at a slight distance.
are bored, and the guide grooves 6, 6 extend rearward beyond the rear surface 9 of the front chamber 4 by the protrusions 7, 7 and 8, 8. The protrusions 7, 7 are formed at the corner portions of the housing 1, and the front ends of the protrusions 8, 8 are formed on the rear surface 9.
Stoppers 10, 10 are formed in the vicinity of the rear ends of the protrusions 8, 8 and protrude toward the protrusions 7, 7, respectively. .

11 is an operating member made of electrically insulating material such as synthetic resin, and as shown in FIGS.
A rectangular projecting portion 12 is formed at the middle portion located inside, a rectangular enlarged portion 13 is formed at the rear end located at the rear of the front chamber 4, and a rectangular enlarged portion 13 is formed at the front end protruding forward through the opening 2. An operating end portion 14 is formed.

Reference numeral 15 denotes a partition plate, which is attached to the rear surface 9 of the front chamber 4 on the left side of the protrusions 8, 8, and is mounted in the housing 1. Partition plate 15
As shown in FIG.
A cross-shaped opening 16 is formed through which the opening 1 is inserted so as to be freely displaceable in four directions: up, down, left and right.

17 is the first printed circuit board, and the second to
As shown in Figures 4 and 10, there are protrusions 1 on both the left and right edges.
8 and 18 are formed respectively, and the protrusions 18,
18 is fitted into the housing 1 by fitting into the holes 3, 3 of the housing 1. Eight terminals B, E, C, C, L, R, L', and R' are provided in a horizontal row in the center between the top and bottom of the first printed circuit board 17, passing through the connector 19 attached to the rear of the first printed circuit board 17. , and eight contacts a ₁ , l ₁ , r 1 , l' ₁ , r _{' 1 ,} d ₁ , a ₂ , on the front right end of the first printed circuit board 17.
d ₂ are provided in one vertical column.

Reference numeral 20 denotes a second printed circuit board disposed inside the housing in a direction orthogonal to the first printed circuit board 17, and the guide groove 6,
6 (see FIG. 5) to be installed in the housing 1. When the second printed circuit board 20 is inserted into the guide grooves 6, 6, the protrusions 8, 8 are deformed in the direction away from the protrusions 7, 7, and the second printed circuit board 20 is attached to the front wall of the housing 1. When it is completely inserted to the contact position, the protrusion 8,
8 is restored, and the stoppers 10 hold down the rear end of the second printed circuit board 20 to position it. As shown in FIGS. 4 and 11, when the first printed circuit board 17 is attached to the housing 1, the rear end of the printed circuit board 20 has contacts a ₁ , l ₁ , r ₁ ,
Eight contact pieces a ₃ , l ₂ , r ₂ , l _{' 2 ,} r _{' 2 ,} d 3 , a ₄ , d ₄ that press against l' 1 , r' ₁ , d 1 , a ₂ , d _{2 ,} respectively. are provided in one vertical row, and these contact pieces are in the shape of leaf springs, as shown in FIG. Further, two holes 21 and 22 are formed side by side in the center between the top and bottom of the front part of the printed circuit board 20.

Inside the housing 1, sliding bodies 38 and 23 made of electrically insulating material are arranged. That is, on the rear side of the partition plate 15 inside the housing, there is a contactor equipped with a contact that slides along the first printed circuit board 17 by tilting the operating member 11 and selectively comes into contact with and separates from the contacts of the printed circuit board 17. The first sliding body 38 is disposed in the front chamber 4, and a contact element that slides along the second printed circuit board 20 and selectively comes into contact with and separates from the contacts of the printed circuit board 20 by moving the operating member 11 forward and backward. A second sliding body 23 with attached is arranged. As shown in FIGS. 2 to 4 and 7, the second sliding body 23 has a cavity 24 formed therein for accommodating the protrusion 12 of the operating member 11, and the operating member 11 is mounted on both the front and rear walls.
Openings 25, 25 through which the openings 1 are inserted are formed, respectively. A spring 26 is provided between the rear wall of the second sliding body 23 and the protruding portion 12, and protrusions 27, 2 are provided on both the upper and lower surfaces of the slide body 23, and the protrusions 27, 2 are slidably fitted into the guide grooves 5, 5.
7 are formed respectively. Second sliding body 23
A thick part 28 is formed on the right side of the wall, and the thick part 28 has a center hole 29 and elongated holes 3 arranged above and below the center hole 29.
0 and 31 are both opened and bored on the right side. The center hole 29 is provided with a spherical stopper 33 that is biased to be press-fitted into the hole 21 or 22 of the second printed circuit board 20 by the tension of a spring 32, and the elongated holes 30, 31 are provided with a spring 34, 34,
The contacts 36, 3 are urged to come into pressure contact with the inner surface of the printed circuit board 20 by the stretching force of the contacts 35, 35.
7 are provided respectively. Second sliding body 23
When the operating member 11 is pulled forward by the projecting portion 12, the stopper 33 is press-fitted into the hole 21 at the forward position where the front wall contacts the front wall of the housing 1 and is held at this position. When pushed rearward by the overhang 12 via the spring 26, the stopper 33 is press-fitted into the hole 22 and held at this position in the retracted position where the rear wall contacts the partition plate 15.

When the first sliding body 38 tilts the operating member 11,
As shown in FIG. 2, it tilts using one of the sides of the overhang 12 in the front chamber 4 as a fulcrum. It is disposed between the partition plate 15 and the first printed circuit board 17 so as to be slidable vertically and horizontally. As shown in FIGS. 2 to 4 and 8, the first sliding body 38 has a through hole 39 formed approximately in the center thereof through which the enlarged portion 13 of the operating member 11 is inserted so as to be freely forward and backward, and a through hole 39 on the rear side. Projections 40 and 41 are formed above and below, respectively. Elongated holes 42 and 43 are formed in the protrusions 40 and 41 and open to the rear surface, and a spring 44 is inserted into the elongated holes 42 and 43 when the front surface of the first sliding body 38 is in contact with the partition plate 15. , 44, 45, and 45 are provided with contacts 46 and 47, which are biased so as to come into pressure contact with the front surface of the first printed circuit board 17, respectively. The contacts 46 and 47 are similar to the contacts 36 and 37, and are each provided with a pair of left and right contact protrusions, as shown in FIG.

On the front side of the first printed circuit board 17, fourth and ten
As shown in the figure, there are seven contact points e ₁ , e ₂ , e ₃ , a ₅ , d ₅ , c ₁ , and c ₂ above the contact point e ₂ at approximately the center between the left and right sides.
It is provided at the apex of an approximately hexagonal shape with the center at the center, and seven contact points b ₁ , b ₂ , b ₃ , c ₃ , c ₄ , a ₆ , and d ₆ are provided at the bottom of the approximately hexagonal shape with the contact point b ₂ at the center. It is placed at the top. The positions of these contacts are the same as those of the first sliding body 3.
8 is in the neutral position, the contacts 46 and 47 are in the first
It is located at the position shown by the chain line in Figure 0. When this sliding body 38 is at the lower limit position, contacts e ₁ , c ₁ and contacts b ₁ , a ₆
are connected by the contacts 46 and 47, respectively, and when the sliding body 38 is at the upper limit position, the contacts e ₃ and a ₅ and the contacts b ₃ and c ₃ are connected by the contacts 46 and 47, respectively, and the sliding body 38 is at the right limit position. Contact when in position
e ₂ , c ₂ and contacts b ₂ , d ₆ are connected by contacts 46 , 47 respectively, and when the sliding body 38 is at the left limit position, contacts e ₂ , d ₅ and contacts b ₂ , c ₄ are connected by contacts 46 , 47 . 46 and 47, respectively. Terminal B and contacts b ₁ , b ₂ , and b ₃ are connected in a pattern, terminal E and contacts e ₁ , e ₂ , and e ₃ are connected in a pattern, and terminals C and C are commonly connected and connected to contact c _{1 .} , c ₂ , c ₃ , c ₄ are connected in a pattern, terminals L, R, L', R' are connected in a pattern with contacts l ₁ , r ₁ , l' ₁ , r' ₁ , respectively, and contact a ₁ and a ₅ , d ₁ and
d ₆ , a ₂ and a ₆ , and d ₂ and d ₅ are each connected in a pattern.

The inner surface of the second printed circuit board 20 has a fourth, a first
As shown in Figure 1, three contacts l ₃ , a ₇ , r ₃ are provided in a horizontal row above the holes 21 and 22, and three contacts l' ₃ , d ₇ , r' are provided below. ₃ are arranged in a horizontal row. The positions of these contacts are as follows: when the second sliding body 23 is in the forward position, the contacts l ₃ , a ₇ and the contacts l′ ₃ , d ₇
are connected by the contacts 36 and 37, respectively, and when the second sliding body 23 is in the reverse position, the contacts
r ₃ and a ₇ and contacts r' ₃ and d ₇ are arranged so as to be connected by contacts 36 and 37, respectively. Contact pieces l ₂ , r ₂ , l′ ₂ , r′ ₂ and contacts l ₃ , r ₃ , l′ ₃ , r′ ₃ are connected in a pattern, respectively, and contact pieces a ₃ , a ₄ are connected in a pattern.
a ₇ , contact pieces d ₃ and d ₄ and contact point d ₇ are connected in a pattern, respectively.

The operation of the multi-dimensional changeover switch constructed as described above will be explained based on an example in which it is applied to a device for adjusting the angles of left and right rear view mirrors of an automobile vertically and horizontally.

Now, the left rear mirror is motor ML1,
Equipped with ML2, the right back mirror is a motor MR.
1. It is assumed that the robot is equipped with MR2 and is configured to move vertically and horizontally using the following combinations. In other words, when motor ML1 or MR1 rotates in the normal direction, it moves upward, and when it rotates in reverse, it moves downward;
2 or MR2 moves to the left when it rotates forward, and moves to the right when it rotates in reverse.

For the left and right rearview mirrors configured in this way, as shown in FIG.
Connect terminals L, L', R, and R' to the positive terminal of 2, respectively, and connect the motors ML1, ML2, MR1, MR2.
Commonly connect terminal C to the negative terminal of.

In the multi-directional switch connected in this way, when the operating member 11 is first pulled forward and the second sliding body 23 is placed in the forward position shown in FIG.
Contacts l ₃ , a ₇ and contacts l′ ₃ , d ₇ are contacts 36, 37
are connected to each other by In this state, when an external force is applied to the operating end 14 and it is tilted upward, the first sliding body 38 is displaced to the lower limit position and the contact
The contacts e ₁ and c ₁ and the contacts b ₁ and a ₆ are connected by the contacts 46 and 47, respectively, so that the motor ML1 rotates normally and the left rearview mirror is moved upward. Further, when the operating end 14 is tilted downward, the first sliding body 38 is displaced to the upper limit position, and the contacts e ₃ and a ₅ and the contacts b ₃ and c ₃ are connected by the contacts 46 and 47, respectively. Motor ML1
is reversed and the left rear mirror is moved downward. Further, when the operating end portion 14 is tilted to the left, the first sliding body 38 is displaced to the rightmost position, and the contacts e ₂ , c ₂ and contacts b ₂ , d ₆ are moved to the contacts 46 , 47 .
are connected respectively by the motor ML
2 rotates forward and the left rearview mirror is moved to the left. When the operation end 14 is further tilted to the right, the first sliding body 38 is displaced to the left limit position, and the contacts e ₂ and d ₅ and the contacts b ₂ and c ₄ are moved to the contact 46,
47, respectively, and thereby the motor
ML2 is reversed and the left rearview mirror is moved to the right.

Next, when the operating member 11 is pushed rearward and the second sliding body 23 is placed in the reverse position shown in FIG.
Contacts r ₃ , a ₇ and contacts r' ₃ , d ₇ are contacts 36, 37
are connected to each other by In this state, when an external force is applied to the operating end 14 and it is tilted upward, the first sliding body 38 is displaced to the lower limit position and the contact
e ₁ and c ₁ and contacts b ₁ and a ₆ are connected by contacts 46 and 47, respectively, so that the motor MR1 rotates in the normal direction and the right rearview mirror is moved upward. Further, when the operating end 14 is tilted downward, the first sliding body 38 is displaced to the upper limit position, and the contacts e ₃ and a ₅ and the contacts b ₃ and c ₃ are connected by the contacts 46 and 47, respectively. Motor MR1
is reversed and the right rear mirror is moved downward. Further, when the operating end portion 14 is tilted to the left, the first sliding body 38 is displaced to the rightmost position, and the contacts e ₂ , c ₂ and contacts b ₂ , d ₆ are moved to the contacts 46 , 47 .
are connected respectively by the motor MR
2 rotates forward and the right rearview mirror is moved to the left. When the operating member 14 is further tilted to the right, the first sliding body 38 is displaced to the left limit position, and the contacts e ₂ and d ₅ and the contacts b ₂ and c ₄ are moved to the contact 46,
47, respectively, and thereby the motor
MR2 is reversed and the right rearview mirror is moved to the right.

When the external force is removed from the operating end 14, the operating member 11 automatically returns to the neutral position where it is not tilted in any direction as shown in FIGS. 1 and 3 due to the action of the spring 26. Contacts 46, 47
is the position shown by the chain line in FIG. Therefore, when the user releases the operating end 14 when the rearview mirror is at the desired angle during the angle adjustment operation, the rearview mirror will come to rest at that position.

In the above embodiment, the printed circuit board 20 is provided on the right side of the housing 1, but the present invention is not limited to this, and the printed circuit boards 17 and 20 are connected by leaf spring-shaped contact pieces a ₃ , l ₂ , r ₂ , Limited to the case where l′ ₂ , r′ ₂ , d ₃ , a ₄ , d ₄ are in pressure contact with the contact points a ₁ , l ₁ , r ₁ , l′ ₁ , r _{′ 1 ,} d _{1 , a 2} , d ₂ Furthermore, the positioning of the sliding body 23 is not limited to the spherical stopper 33 being press-fitted into the hole 21 or 22. Further, in the above embodiment, the contacts e ₁ , e ₂ , e ₃ , a ₅ , d ₅ , c ₁ , c ₂ and the contacts b ₁ , b ₂ , b ₃ , c ₃ , c ₄ , a ₆ , d ₆ are 7 Set up one by one,
Further, although three contacts l ₃ , a ₇ , r ₃ and three contacts l' ₃ , d ₇ , r' ₃ are provided, the present invention is not limited to these.Furthermore, in the above embodiment, the angles of the left and right rear view mirrors of a car can be adjusted. Although the present invention is applied to a device that adjusts vertically and horizontally, it is not limited thereto, and it goes without saying that this invention can be modified in various ways to the above-described embodiments.

Since this device is constructed as described above, the contacts of the first printed circuit board and the contacts of the first sliding body can be selectively connected by the tilting operation using the protrusion as a fulcrum when the operating member is tilted. Furthermore, the contacts on the second printed circuit board and the contacts on the second sliding body can be selectively brought into contact with and separated from each other by advancing and retracting the operating member. It is possible to perform multi-factor switching equivalent to the above, and has excellent effects such as being able to be configured more compactly and requiring less installation space than when two four-way switching switches are provided. It is.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is a longitudinal cross-sectional plan view of Fig. 1 with the operating member tilted, and Fig. 3 is a state with the operating member in the neutral position pushed in. Fig. 4 is an exploded perspective view of each member excluding the housing, Fig. 5 is a one-point perspective view of the housing as seen from the back, and Fig. 6 shows the connecting portion between the first and second printed circuit boards. A longitudinal plan view, FIG. 7 is a rear view of the second sliding body,
Figure 8 is a left side view of the first sliding body, Figure 9 is a perspective view of the contact, Figure 10 is a left side view of the first printed circuit board, and Figure 11 is a front view of the second printed circuit board. , FIG. 12 is a wiring diagram showing an example of terminal connections. 1: Housing, 2, 16, 25: Opening, 3,
21, 22: hole, 4: front chamber, 5, 6: guide groove,
7, 8, 27: Projection, 9: Rear surface, 10, 33: Stopper, 11: Operation member, 12: Projection, 13:
Enlarged portion, 14: Operation end portion, 15: Partition plate, 17,
20: first and second printed circuit boards, 18: protrusion,
19: Connector, 38, 23: First and second sliding bodies, 24: Vacant space, 26, 32, 34, 35, 4
4, 45: Spring, 28: Thick part, 29: Center hole,
30, 31, 42, 43: long hole, 36, 37, 4
6, 47: contact, 39: through hole, 40, 41:
Projection, B, E, C, C, L, R, L', R': Terminal,
a ₃ , l ₂ , r ₂ , l′ ₂ , r′ ₂ , d ₃ , a ₄ , d ₄ : tangent, a ₁ , l ₁ ,
r ₁ , l′ ₁ , r′ ₁ , d ₁ , a ₂ , d ₂ ; e ₁ , e ₂ , e ₃ , a ₅ , d ₅ ,
c ₁ , c ₂ ; b ₁ , b ₂ , b ₃ , c ₃ , c ₄ , a ₆ , d ₆ ; l ₃ , a ₇ ,
r ₃ ; l′ ₃ , d ₇ , r′ ₃ : Contact points.

Claims (1)

[Claims for Utility Model Registration] A housing 1 having an opening 2 at the front, an operating member 11 that extends forward through the opening 2 from inside the housing 1 and is tiltable and movable back and forth, and the rearmost part of the housing 1. a first printed circuit board 17 disposed in
a second printed circuit board 20 disposed inside the housing in a direction perpendicular to the first printed circuit board 17 and having a plurality of contacts on the inner surface; and a second printed circuit board 20 disposed in front of the first printed circuit board 17. and has a through hole 39 into which the enlarged rear end portion 13 of the operating member 11 is inserted, and when the operating member 11 is tilted, it slides along the first printed circuit board 17 and connects with the contact point of the printed circuit board 17. a first sliding body 38 having contacts 46 and 47 that selectively move toward and away from each other;
a contactor 36 that slides along the printed circuit board 20 and selectively contacts and separates from the contacts of the printed circuit board 20;
37, which is formed approximately at the longitudinal center of the operating member 11 in a direction perpendicular to the axis of the operating member;
and a projecting portion 12 that is inserted into the space 24 of the second sliding body 23 and serves as a tilting fulcrum for the operating member; A multi-way changeover switch comprising a spring 26 that always gives the operating member 11 a tendency to protrude forward.