JPH027487B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push-operation type switch having a push-operation portion such as a push button.

Such push-operated switches are used in many electrical appliances, but the present invention proposes a push-operated switch that is particularly suitable for mirror control switches in automobiles.

As is well known, passenger cars are equipped with a control device for side mirrors (also called back mirrors) that can be electrically adjusted from inside the vehicle, and the control lever for the adjustment switch for the control device is located in front of the driver's seat. It is set up. Such a control device requires two control circuits, one for the left mirror and the other for the right mirror. Conventionally, each of these two control circuits is provided with an adjustment switch, and the left or right mirror is adjusted using an individual switch. However, recently, an adjustment switch has been developed that includes a selection switch for selecting one of the two control circuits. Some of these switches are designed to select a circuit by rotating one control lever around its axis, and to adjust the mirror surface tendency of the selected left or right mirror by tilting the lever. be.

In addition, most of the above control devices are equipped with two motors, one for the left side and one for the right side, and these motors are always connected to the drive system for adjusting the horizontal tendency of the mirror, and when adjusting the vertical tendency, they are controlled by an electromagnetic mechanism. It is designed to switch to a vertical drive system.

On the other hand, although the adjustment switch of the above-mentioned control device is equipped with an operating lever, there is a push button type instead of this operating lever type. This push-button type switch has push buttons for left/right or up/down adjustment, and is excellent in terms of operability, but it is easy to press two or more push buttons at the same time, and there is no way to avoid the trouble caused by this. It was difficult, and I disliked that the overall structure of the switch was complicated.

This invention was invented with the aim of solving the various drawbacks of the push button type described above, however, the push-operated switch of this invention can also be used in various electrical devices.

Accordingly, in the present invention, there is provided an inclined part which is partially installed in the switch body and converts the linear movement into rotational movement by sliding down the advancing/retracting member having a backward movement force which is pressed down from the outside of the switch body. A rotating body with a bending part provided in the middle engages with the rotating body, and while the rotating body is not rotating, both end portions abut against conductive fixing members provided in the body. , an elongated electrically conductive bending spring that applies a backward force to the rotating body when the rotating body rotates, and one end of the bending spring deflecting while accumulating spring force as the rotating body rotates; A push-down operation switch is proposed in which a portion is separated from the conductive fixing member and newly abuts on another conductive fixing member.

Further, each invention subordinate to this invention will be clarified by the examples described in detail below.

The drawings show an example in which the switch according to the present invention is implemented as a side mirror adjustment switch for a car. FIG. 1 is a front view of the switch, FIG. 2 is a sectional view taken along line A--A in FIG. 1, and FIG. is B-B on Figure 2
4 is a sectional view taken along line C--C in FIG. 3. In these figures, 1 indicates a box-shaped switch body, and push buttons 2L, 2R, 2U, and 2D protruding from the front of the body 1 are provided on the left and right, top and bottom of the front. A undulating T-shaped push button 3 is provided at the center of the front surface of the button.
This push button 3 is an operation part of an operation switch for selecting one of the left mirror control circuit and the right mirror control circuit, and the push buttons 2L, 2R, 2U, 2
Reference numeral D designates a switch operating section for adjusting the mirror surface tendency of the left mirror or the right mirror.

On the other hand, inside the switch body 1, a partition plate 4 having a square tube part 4a projecting upward and a columnar part 4b projecting downward is fixed.
The T-shaped push button 3 is pivotally mounted in the inside of the cylindrical portion 4b, and a sliding block 5 interlocked with the push button 3 is movably housed in a rectangular hole bored in the cylindrical portion 4b. The partition plate 4 also includes the push buttons 2L and 2.
R, 2U, and 2D are provided with through holes for the advancing and retracting rods 2La, 2Ra, 2Ua, and 2Da provided as advancing and retracting members, respectively, and by pressing each push button, the tips of the advancing and retracting rods are moved. is arranged so that it extends below the partition plate 4.

The push buttons 2L, 2R, 2U, and 2D are cap-shaped and are constantly pressed by the expanding force of a spring 6 interposed between each push button and the partition plate 4, and their flange portions are attached to the switch body 1. is in contact with the inner wall of In addition, push buttons 2L, 2R, 2U, 2
It is preferable to provide a side wall in the switch body 1 that guides D when it is pressed.

Next, a ring-shaped rotating plate 7 is attached to the columnar part 4b of the partition plate 4, and rotates around the columnar part 4b, and
This rotating plate 7 has four protrusions 7 having V grooves.
L, 7R, 7U, 7D and spring hanging protrusions 7a, 7b
is provided. (See Fig. 5) The protrusions 7L, 7R, 7U, 7D are the push buttons 2L, 2R,
2U and 2D, the front tips of the push button advance/retreat levers 2La and 2Da are located above one side of the V-groove slope of the protrusions 7L and 7D, and the push button advance and retreat levers 2Ra and 2Ua The front of the tip is the protrusion 7R, 7U V
They are positioned so as to touch the upper part of the other side of the groove slope. Therefore, when the push button 2L or 2D is pressed down, the tip of the advancing/retracting lever 2La or 2Da slides down the slope of the protrusion 7L or 7D, so the rotating plate 7 rotates counterclockwise in FIG. 3. , push button 2R
Alternatively, when 2U is pressed down, the rotating plate 7 rotates in the opposite direction.

On the other hand, the bending part in the middle is the above-mentioned spring hanging protrusion 7.
two V-shaped bending springs 8a, engaged with a, 7b;
8b is composed of a conductive elongated plate material, and both ends thereof are brought into contact with conductive fixing members 9 and 10 implanted in a terminal board, which will be described later.

Note that the above-mentioned rotating plate 7 has spring hooking protrusions 7a, 7.
Since b is held in the position shown in FIG. 3 by the bending springs 8a and 8b, it is always stationary in the state shown in FIG.

The board terminal 11 is fixed inside the lower part of the switch body 1 as shown in the figure, and is received by the rotating plate 7 so as to rotate on its upper surface, and the sliding block 5 is connected to the electrical terminal provided on the board 11. The terminal surface can be moved. In addition, sliding block 5
An electrical terminal piece 5a having two sliding contact points is provided so as to constantly contact the terminal board 11 by a spring force, and furthermore, the block 5 is stopped at a moving position by a click stop device 5b. Ru.

The terminal board 11 further includes conductive fixing members 12a,
12b is implanted on both sides of the aforementioned fixing member 9, and conductive fixing members 13a, 13b are implanted on both sides of the aforementioned fixing member 10, respectively.
Electric movable contact pieces 14U and 14D are fixed to each of b.

Each of the movable contact pieces 14U and 14D is capable of contacting conductive fixing members 15U and 15D implanted in the terminal board 11 so as to be located at their tip portions. And these movable contact pieces 14U,
14D is a push button 2U, a moving rod 16U provided on 2D,
Fixed member 15U is pressed by the advance of 16D,
Contact 15D. (See Figure 6) In addition, push button 2
A part of the partition plate 4 below the U is equipped with an advancing/retracting rod 2.
The through hole of Ua and the moving rod 16U is also the push button 2D.
A part of the partition plate 4 at the bottom of the
and a through hole for the driven rod 16D are provided respectively.

Further, the terminal board 11 described above also has a seventh
Printed wiring as shown in the figure is laid. In the figure, ML is a motor for driving the left mirror, MR is a motor for driving the right mirror, SL is an electromagnetic coil for the left mirror, and SR is an electromagnetic coil for the right mirror. Further, B indicates a connection line to the battery, and E indicates a connection line to ground.

The mirror adjustment switch configured as described above is operated by pressing the T-shaped push button 3 depending on whether the left or right side mirror is desired to be adjusted. The illustrated state shows a case where the left mirror control circuit is selected, and under this operation, the electrical terminal piece 5a is at the position shown by the solid line in FIG. 7.

Next, one of the push buttons 2L, 2R, 2U, and 2D is pressed depending on the direction in which the mirror surface is inclined.

For example, in the illustrated state in which the control circuit for the left mirror is selected, if the push button 2D is pressed, the forward/backward moving rod 2Da and the driven rod 16D advance inward of the switch body 1, and first, the driven rod 16D presses down the movable contact piece 14D, and then the advancing/retracting lever 2Da slides down the V-groove slope of the protrusion 7D, and this sliding movement causes the rotating plate 7 to rotate counterclockwise in FIG. 3. . Since the spring hanging protrusions 7a and 7b turn in the same direction due to the rotation of the rotating plate 7, the bending spring 8
The middle bent portions of a and 8b are pushed around, and this spring 8
a, 8b are deflected, so that one end of the bending spring 8a (top right end in FIG. 3) is separated from the fixing member 9 and comes into contact with the fixing member 12a, and the other end of the bending spring 8b (bottom left end in FIG. The end) is separated from the fixing member 10 and comes into contact with the fixing member 13b. FIG. 8 shows the operating state at this time.

When the bending springs 8a, 8b are deflected as described above, an electric circuit on the terminal board 11 is formed as shown in FIG. That is, the battery, B, fixed member 12b, fixed member 13b, bending spring 8b, fixed member 9, electrical terminal piece 5a, motor ML, fixed member 10, bending spring 8a, fixed member 12a, and ground E circuit. Therefore, left side mirror drive motor ML
is supplied with power, and the battery B-fixing member 12
b - fixed member 13b - movable contact piece 14D - fixed member 15D - electrical terminal piece 5a - electromagnetic coil SL - motor ML - fixed member 10 - bending spring 8a - fixed member 12a - electromagnetic coil by the circuit of ground E
SL is powered. From this, current flows through the motor ML and the electromagnetic coil SL in the direction of the solid arrow in the figure, so the motor ML is connected to the vertical drive system under the action of the electromagnetic coil SL, and the left mirror is adjusted downward. Ru.

When the pressing force of push button 2D is released after adjustment,
Since the push button 2D returns to the illustrated state due to the expanding force of the spring 6, the rotational force on the rotating plate 7 is released, and the pressing force of the movable contact piece 14D is also released, so that the movable contact piece 14D becomes a fixed member. 15D, and the rotating plate 7 is restored to the state shown in FIG. 3 by the elasticity of the bending springs 8a and 8b. This restoring operation cuts off the power supply to the motor ML and the electromagnetic coil SL.

Next, when the push button 2L is pressed while the left mirror control circuit is selected, the advance/retreat lever 2La slides down the V-groove slope of the protrusion 7L to move the rotating plate 7 to the third position. Because it rotates counterclockwise in the diagram,
The operation at this time will be in the operating state shown in FIG. 8 in the same manner as above. However, in this case, the movable contact pieces 14U and 14D are both separated from the fixed members 15U and 15D.

From this, since no power is supplied to the electromagnetic coil SL, the motor ML is connected to the lateral drive system. Since current flows through the motor ML in the direction of the dotted arrow in FIG. 10, the left mirror is adjusted to the left.

When the pressing force of the push button 2L is released, the rotating plate 7 returns to its original state in the same manner as described above and cuts off the power supply to the motor ML. On the other hand, in the illustrated state in which the control circuit for the left mirror is selected, when the push button 2U is pressed, the movable contact piece 14U moves as the follower lever 16U advances.
comes into contact with the fixed member 15U, and the forward and backward moving rod 2
Since Ua slides down the V-groove slope of the protrusion 7U,
The rotating plate 7 rotates clockwise in FIG. 3. Therefore, the deflection of the bending springs 8a, 8b is in the opposite direction compared to the above, the other end of the bending spring 8a is separated from the fixing member 10 and comes into contact with the fixing member 13a, and one end of the bending spring 8b is Fixed member 1 apart from fixed member 9
2b.

From this, the electrical circuit on the terminal board 11 is
The motor for driving the left mirror is formed as shown in the figure.
Power is supplied to ML and electromagnetic coil SL so that current flows in the direction of the solid arrow, and the left mirror is adjusted upward. Further, when the push button 2R is pressed down, the rotating plate 7 is rotated clockwise in the same manner as described above, but the movable contact pieces 14U and 14D are both attached to the fixed member 1.
Because it is farther away than 5U and 15D, the electromagnetic coil
Power is not supplied to SL, and the left mirror drive motor ML
only the power is supplied. As a result, a current flows through the motor ML in the direction of the dotted arrow in FIG. 10, and the left mirror is adjusted in the rightward direction. In the above explanation, we have talked about adjusting the tendency of the left mirror, but when adjusting the tendency of the right mirror, press the right back of the T-shaped push button 3 and select the control circuit for the right mirror. It becomes possible to adjust the tendency of the mirror surface. In this case, since the sliding block 5 moves to the left in FIG. 2, the electrical terminal piece 5a
is displaced to the dotted line position in FIG. As mentioned above,
According to this mirror adjustment switch, it is possible to effectively prevent harmful effects caused by simultaneous operation of two or more push buttons.

For example, in FIG. 1, push buttons 2L, 2R, 2
When U and 2D, 2L and 2U, and 2D and 2R are pressed at the same time, the rotating plate 7 receives rotating forces in opposite directions and does not rotate, so even if these are pressed as a pair, the push button will not be pressed. . In addition, push buttons 2L and 2
When D or 2U and 2R are pressed at the same time, the rotating plate 7 receives a force in the same direction and rotates, but in this case, the movable contact piece Since 14U or 14D contacts the respective fixing members 15U and 15D, the electromagnetic coil
Current flows through SL or SR, then motor ML
Or MR is powered. Therefore, push button 2L
When and 2D or 2U and 2R are operated at the same time, the mirror is adjusted vertically, but there is no electrical disturbance.

From the above, the push-operated switch of the present invention uses a bending spring that accumulates elastic force in response to the depression of the operating section to restore the rotary plate, and this bending spring is also used to control the electric movable contact piece. Because it is configured to fulfill its role, multi-directional switches, which tend to have complicated structures, can be made extremely simple. Furthermore, it has a means to prevent failures in the event that multiple operating sections are inadvertently operated at the same time. It has the advantage that it can be included in the switch without any special configuration.

Note that the protrusions 7L, 7R, and
The V grooves 7U and 7D may have sawtooth slopes.

[Brief explanation of drawings]

The drawings show an example in which the push-operated switch according to the present invention is implemented as a switch for adjusting side mirrors of an automobile, and FIG. 1 is a front view of the switch, FIG. Figure 3 is B on Figure 2.
Figure 4 is a sectional view taken along line C--C in Figure 3, Figure 5 is a side view of the rotating plate, and Figure 6 is a section showing the interlocking relationship between the push button and the rotating plate. cross-sectional view, 7th
The figure is a front view of the terminal board with a simplified electric circuit for the mirror drive motor and the electromagnetic coil, Figure 8 is a sectional view similar to Figure 3 showing the operating state, and Figures 9 and 10 are FIG. 8 is a front view of the terminal board similar to FIG. 7 showing the terminal board in an operating state. 1...Switch body, 2L, 2R, 2U, 2D
...Push button, 2La, 2Ra, 2Ua, 2Da...Advance/retreat movement lever,
7...Rotating plate, 7L, 7R, 7U, 7D...Protrusion part,
7a, 7b...Spring hanging protrusion, 8a, 8b...Bending spring, 9, 10...Fixing member, 11...Terminal board, 12
a, 12b, 13a, 13b...fixing member, 14
U, 14D...movable contact piece, 15U, 15D...fixing member, 16U, 16D...driving rod, ML...motor for driving the left mirror, MR...motor for driving the right mirror,
SL...Electromagnetic coil for left side mirror, SR...Electromagnetic coil for right side mirror.

Claims (1)

[Scope of Claims] 1. A slope part that is partially installed in a switch body and converts linear movement into rotational movement when a reciprocating member having a backward movement force that is pressed down from the outside of the body slides down. A rotating body provided therein and a bent portion provided in the middle engage with the rotating body, and while the rotating body is not rotating, both end portions abut against conductive fixing members provided in the body, An elongated electrically conductive bending spring that applies a backward force to the rotating body when the rotating body rotates; and another conductive fixing member that separates from the conductive fixing member and comes into new contact with the conductive fixing member. 2. In the switch described in claim 1, a plurality of inclined portions are arranged at predetermined intervals, and a plurality of moving members that move forward and backward are provided corresponding to these inclined portions, and the moving members that move forward and backward are arranged outside the switch body. A press-operated switch that allows more individual operation. 3. A rotating body that is partially installed in a switch body and includes an inclined part that converts a linear movement into a rotational movement by sliding down an advancing/retracting member having a backward movement force that is pressed down from the outside of the body; The bent portions provided in the middle engage the rotating body symmetrically so as to face each other, and both end portions are common to the conductive fixing member provided within the body when the rotating body does not rotate. two elongated electrically conductive bending springs that come into contact with the body and apply a backward force to the rotating body when the rotating body rotates, and these bending springs accumulate spring force as the rotating body rotates. A push-down operation switch comprising a conductive fixing member which, when deflected, causes each of the one end portions of the springs to separate from the conductive fixing member and come into contact with another conductive fixing member. 4. A push-operated switch according to claim 3, in which the two bending springs are V-shaped bending springs. 5. A plurality of forward/backward movable members which are partially internally installed in the switch body and positioned at predetermined intervals on the top, bottom, left and right sides, and which are individually pressed down from outside the body, and return/backward movable members provided on these forward/backward moving members. A movable spring and an inclined part that converts linear motion into rotational motion when the movable movable member advances and slides down correspond to each of the movable movable members, and an inclination that corresponds to the movable movable members located above and below. A rotating body is provided so that the tilting direction of the tilting part corresponding to the advancing and retracting members located on the left and right sides is different, and a bent part provided in the middle engages with the rotating body, and the non-alignment of the rotating body is engaged. an elongated electrically conductive bending spring whose both ends abut against a conductive fixing member provided in the body during rotation and which applies a reciprocal force to the rotating body when the rotating body rotates; When the spring deflects while accumulating spring force due to the rotation of the rotating body, one end portion of the spring separates from the conductive fixing member and comes into contact with the other conductive fixing member, and the advancing/retracting member. A push-operated switch consisting of a following member provided on several parts of the body, and an opening/closing switch built into the body that closes when the following member advances.