JP2592865Y2 - Stick type switch device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stick type switch device in which a movable contact piece is provided on a holder which is moved in two directions intersecting by a stick, and a fixed contact piece is opened and closed by the movable contact piece.

[0002]

2. Description of the Related Art For example, there is an automobile in which the position of a steering wheel can be changed according to a driver recently. In this case, the steering wheel is provided movably in the up-down direction and the front-back direction, and the movement in each direction is performed by two motors.

[0003] Stick switches are used as switches for rotating the steering wheel up, down, forward and backward by rotating each motor forward and backward. This stick-type switch device has two
Direction, a stick that is moved in two directions intersecting by the stick, a movable contact piece provided in the holder, and a connection relationship is switched by the movable contact piece to make a forward rotation circuit of each motor. , And a plurality of fixed contact pieces for forming a reversing circuit.

In this case, as shown in FIG. 10, a movable contact piece 2 provided on a holder 1 is urged toward a fixed contact piece 4 by a compression coil spring 3 so as to obtain a contact pressure with the fixed contact piece 4. There is something that I did. As another example, as shown in FIG. 11A, one end of the movable contact piece 5 is
And the other end is bent so as to extend to the fixed contact 7 side, so that the movable contact 5 itself has a resilient force to fix the fixed contact 7.
Some are configured to obtain a contact pressure with the contact.

[0005]

FIG. 10 requires the compression coil spring 3 to obtain the contact pressure.
There is a problem that the number of parts increases. On the other hand, in the case of FIG. 11, the movable contact piece 5 is a so-called cantilever support.
When moving in the width direction of the movable contact piece 5 shown by the arrow B, the movable contact piece 5 slightly bends as shown by a two-dot chain line, and the holder 6 is moved. Between the actual moving distance of the movable contact piece 5 and the actual moving distance of the movable contact piece 5. For this reason, it is good if the moving distance of the holder 6 in the direction of arrow B is long, but if it is short, the movable contact piece 5 does not come into contact with or separate from the fixed contact piece 7 with certainty, and the switching operation may become uncertain. is there.

The present invention has been made in view of the above circumstances, and has as its object to obtain a reliable switching operation even if a compression coil spring for obtaining a contact pressure is unnecessary and the moving distance of a holder is short. To provide a stick-type switch device.

[0007]

According to the present invention, there is provided a stick-type switch device comprising: a stick provided on a main body so as to be operable in two intersecting directions; and a stick provided on the main body and intersecting with the operation of the stick. A holder that moves in the direction, four movable contact pieces provided on the holder, and a plurality of fixed contact pieces provided on the main body and moved toward and away from the movable contact piece as the holder moves. The movable contact piece is formed of a contact 4 continuously formed in a rectangular frame shape.
The contact is formed between the four sides.
Supported by the holder at the boundary of
Are arranged so that each of the four movable contact pieces is parallel to two directions of the two directions of movement of the holder, and an intermediate portion of the four movable contact pieces is in contact with the fixed contact piece. In order to obtain a contact pressure, it is formed so as to be convex on the fixed contact side.

[0008]

[Effect] The four movable contact pieces are the four rectangular frame-shaped contacts.
The rectangular frame-shaped contact is composed of four sides.
Since the boundary between the sides is supported by the holder, even when the holder moves in the width direction of the movable contact piece,
There is no possibility of bending. Also, since the middle part of the movable contact piece is formed in a convex shape and the contact pressure is obtained by the elastic force of the part, the compression coil spring biases the movable contact piece toward the fixed contact piece. Becomes unnecessary.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 9, which is applied to a stick type switch device used for a position adjusting device of a steering wheel of an automobile. As shown in FIGS. 1 to 3, a stick 12 as a main body is provided so as to be rotatable in two intersecting directions indicated by X and Y (in this embodiment, two orthogonal directions). The support structure of the stick 12 includes a spherical concave surface 14 formed by an upper surface 11a of the case 11 and a receiving seat 13 fixed in the case 11 so as to abut the upper surface 11a.
Is formed, and the ball portion 15 formed on the stick 12 is supported by the spherical concave surface 14.

Here, longitudinal grooves 16 and 17 are formed on both sides in the X direction and on both sides in the Y direction of the spherical concave surface 14. On the other hand, on both sides of the ball portion 15 of the stick 12 in the Y direction and on both sides in the X direction, shaft protrusions 18 and 19 are protruded. And the shaft projections 18 and 19 are respectively
6, 17 and the moving direction thereof is
The state is regulated in the direction along. This restricts the stick 12 to move only in the X and Y directions.

A substrate 20 is fixed to the lower surface of the case 11, and a holder 21 is movably disposed between the substrate 20 and the receiving seat 13. The lower end of the stick 12 projecting from the receiving seat 13 is
The holder 21 is connected to the stick 12 so as to be connected to the stick 1.
2, the holder 21 moves in the X and Y directions with the rotation in the X and Y directions.

A slider 24 urged downward by a compression coil spring 23 is fitted to the lower end portion of the stick 12 so as to be movable up and down.
It is in sliding contact with the inner surface of the inverted conical recess 25 formed at 0. The slider 24 is always held by the urging force of the compression coil spring 23 so as to be located at the lowermost portion of the concave portion 25, and the stick 12 is placed in the upright position shown in FIGS. Neutral position).

The holder 21 is formed in a rectangular shape as shown in FIG. A contact 26 is provided on the lower surface of the holder 21. The contact 26 is made of, for example, a copper plate and has a rectangular frame shape as shown in FIG. Here, contact 26
A description will be given of the mounting configuration. That is, the holder 2
Projections 27 are provided at the four corners of the lower surface of 1.
As shown in FIG.
A gap 29 corresponding to the thickness of the contact 26 is formed above the locking claw 28.

On the other hand, the boundary between the four sides of the contact 26
Notches 26a are formed at the four corners, which are the boundaries . Then, the notch 26a is formed by the protrusion 27 of the holder 21.
When the contact 26 is pushed in so that
When the edge of the notch 26a gets over the inclined surface 28a of the locking claw 28 and enters the gap 29, the notch 26a
Of the contact 2
6 is attached to the lower surface of the holder 21. The mounting configuration of the contact 26 is as described above.

The four sides of the contact 26 are constituted as first to fourth movable contact pieces 30 to 33, respectively.
An intermediate portion between both ends of each of the movable contact pieces 30 to 33 is bent in an arc shape as shown in FIG. And the top part (most protruding part) of the arc-shaped part of the movable contact pieces 30 to 33
The contacts 30a to 33a are stamped on the substrate 20 by the elastic force of the arcuate portions.
I am in contact with

On the upper surface of the substrate 20, as shown in FIG. 9, a first movable contact piece 30 located on the front side (the lower side in FIG. 9).
A first fixed contact piece 34 is attached to the left side of the contact 30a, and a second fixed contact piece 35 is attached to the right side of the contact 31a of the rear second movable contact 31. Further, third and fourth fixed contacts 36 and 37 are attached to the rear and front sides of the contact 32a of the third movable contact 32 located on the left side, and the fourth movable contact 3 on the right side.
A fifth fixed contact piece 38 is attached to a portion immediately below the third contact 33a.

The first and second fixed contact pieces 34 and 35 are connected to a forward rotation terminal and a reverse rotation terminal of a first DC motor 39 for moving the steering wheel up and down. Further, the third and fourth fixing contact pieces 36 and 3
Reference numeral 7 is connected to a forward rotation terminal and a reverse rotation terminal of a second DC motor 40 for moving the steering wheel back and forth. Further, the fifth fixed contact piece 38 is connected to the positive side of the DC power supply 41.

Here, the contact 33a of the fourth movable contact piece 33
Is configured to always maintain contact with the fifth fixed contact piece 38 regardless of the position of the stick 12 (holder 21). On the other hand, when the stick 12 is in the neutral position, the first to third movable contact pieces 30 to 32
When the stick 12 is at a position deviated from the first to fourth fixing contact pieces 34 to 37 and therefore the stick 12 is at the neutral position,
Both DC motors 39 and 40 are in a non-energized stopped state.

Next, the operation of the above configuration will be described. When the stick 12 is rotated rightward from the neutral position, the holder 21 moves leftward as indicated by an arrow XL in FIG. Thereby, the contact 30a of the first movable contact piece 30 comes into contact with the first fixed contact 34, so that a forward rotation circuit of the first DC motor 39 is formed, and the DC motor 39 rotates in the forward direction. Move the steering wheel upward. Conversely, when the stick 12 is rotated leftward from the neutral position, the holder 21 moves rightward as indicated by the arrow XR in FIG.
Thereby, the contact 31a of the second movable contact piece 31 comes into contact with the second fixed contact 35, so that a reverse rotation circuit of the first motor 39 is formed, and the DC motor 39 rotates in the reverse direction to rotate the steering wheel. Is moved downward.

When the stick 12 is rotated forward (downward in FIG. 3) from the neutral position, the holder 21 moves rearward as indicated by the arrow YR in FIG. Thereby, the contact 32a of the third movable contact piece 32 comes into contact with the third fixed contact 36, so that a forward rotation circuit of the second DC motor 40 is formed, and the DC motor 40 rotates in the forward direction. Move the steering wheel forward. Conversely, stick 12
Is rotated backward from the neutral position, the holder 21
Moves forward as indicated by arrow YF in FIG. As a result, the contact 32a of the third movable contact piece 32 comes into contact with the fourth fixed contact 37, so that a reverse rotation circuit of the second DC motor 40 is formed. Move the wheel backward.

After moving the steering wheel up and down and back and forth to adjust the position of the steering wheel as described above, when the stick 12 is released, the slider 24 is returned to the lowermost bottom of the recess 25. Of the stick 12 due to the resilient force of the compression coil spring 23 biasing the
Is returned to the neutral position, and the DC motors 39, 4
0 stops.

As described above, according to the present embodiment, the movable contact 3
0 to 33 are supported by the holder 21, and an intermediate portion between both ends is formed in an arc shape so as to protrude toward the fixed contact pieces 34 to 38, and the contact pressure is increased by the elastic force of the arc portion. Therefore, the need for a compression coil spring for obtaining the contact pressure can be eliminated, and the number of components can be reduced.

Further, since the movable contact pieces 30 to 33 are supported at both ends, even if the moving direction of the holder 21 is its own width direction, that is, the first and second movable contact pieces 30 and 31 are not moved. Even if the holder 21 moves in the YR and YF directions, the third and fourth movable contact pieces 32 and 3
For No. 3, there is no possibility of bending even if the holder 21 moves in the XL and XR directions.

Particularly, in this embodiment, the first to fourth movable contact pieces 30 to 33 are arranged in a rectangular shape, and the switching operation is not performed when moving in the width direction. As a result, the switching operation performance is further stabilized. Also,
In this embodiment, since the four movable contact pieces 30 to 33 are integrally formed as one contact 26, they are stronger in strength than those separately formed one by one, and can be attached by rivets or the like. Instead, it can be attached to the holder 21 with a simple configuration by the engagement means. Note that the number and arrangement of the fixed contact pieces are not limited to those in the above-described embodiment, and can be changed as appropriate according to the connection relation with the DC motor.

[0025]

As described above, according to the present invention, the middle portion between both ends of the movable contact piece is formed so as to be convex toward the fixed contact piece side, and the contact pressure is obtained by the elastic force of the convex portion. With this configuration, a compression coil spring for obtaining the contact pressure can be eliminated, and since the movable contact piece is supported at both ends, there is no possibility that the movable contact piece will bend in the width direction. In both cases, a reliable switching operation can be obtained . Moreover, the four movable contact pieces have a rectangular frame shape.
Formed by four sides of a contact formed continuously
Strength, and the above effects are better
It has an excellent effect of being able to achieve a good result.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional side view.

FIG. 3 is a plan view

FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.

FIG. 5 shows the holder with the contacts attached to the V-
Vertical front view along the line V

FIG. 6 is a bottom view of the same.

FIG. 7 is an enlarged bottom view of the contact.

FIG. 8 is a longitudinal sectional side view along the line VIII-VIII in FIG. 7;

FIG. 9 is a plan view showing a related configuration between a movable contact piece and a fixed contact piece.

FIG. 10 is a partial longitudinal sectional side view showing a conventional example.

11A and 11B show another conventional example, in which FIG. 11A is a partial vertical sectional view, and FIG. 11B is a plan view of a single movable contact piece.

[Explanation of symbols]

11 is a case (body), 12 is a stick, 14 is a spherical concave surface, 15 is a ball portion, 20 is a substrate, 21 is a holder,
26 is a contact, 27 is a protrusion, 28 is a locking claw, 30 to
33 is the first to fourth movable contact pieces, 34 to 38 are the first to fifth movable contact pieces.
, 39 and 40 are first and second DC motors.

Claims (1)

(57) [Scope of request for utility model registration] 1. A stick provided on a main body so as to be operable in two intersecting directions, a holder provided on the main body and moving in two intersecting directions in accordance with the operation of the stick, and a holder provided on the holder. Four movable contact pieces, and a plurality of fixed contact pieces provided on the main body and moved toward and away from the movable contact pieces with the movement of the holder, wherein the movable contact pieces are continuous in a rectangular frame shape. Contour formed
The contact is formed at the boundary between the four sides.
, Supported by the four pieces
The four movable contact pieces are 2 with respect to two directions of the movement of the holder.
Are arranged so as to be parallel to each other, and the four movable
A stick-type switch device, wherein an intermediate portion of the contact piece is formed so as to protrude toward the fixed contact piece in order to obtain a contact pressure with the fixed contact piece.