JPS6140041Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applied to automobile power windows, etc., which drive a wind regulator by rotating a motor in the forward or reverse direction to raise and lower a window glass or open and close a sunroof. Regarding the operation switch.

[Conventional technology]

There are two ways to operate this type of switch: manual operation, which raises and lowers the window glass while the switch is pressed, and automatic operation, which raises and lowers the window glass until it is fully open or fully closed when the switch is pressed. .

By the way, conventional switches for performing such operations are disclosed in, for example, Japanese Unexamined Utility Model Publications No. 162620/1982 and No. 15278/1989.
This is because the operation position of one switch knob is set to two stages on the left and right, and when the switch knob is pushed to the left (or right) to the first stage operation position, it becomes manual operation. If you press further to the left (or right) to the second stage operation position, automatic operation will occur. However, in such a switch structure, the contacts for controlling the motor are closed in the first stage of the switch knob, and the contacts for controlling the motor are closed in the first stage of the switch knob.
The structure is such that the contact that energizes the solenoid for suctioning and holding the knob is closed in stages.

[Problems to be solved by the invention] By the way, in the conventional technology described above, as described above, there are two contacts, a contact for motor control and a contact for solenoid control (in one direction, left or right). Because of this, the contact structure becomes complicated and the dedicated space becomes large, resulting in a large switch structure.

[Means for solving problems]

The present invention solves the above-mentioned problems and provides a switch that controls a motor and a solenoid using one set of contacts for each left and right, simplifying the contacts and making it possible to downsize the switch. A knob is attached to allow rocking operation, a chain pin is housed in an operating rod extending from the knob and has a tip protruded by a spring force, and a chain pin is formed on the case and on which the tip of the chain pin slides. an upright wall having a valley-shaped slope in which a first slope and a second slope are formed from the first slope through a moderation part; It is equipped with a solenoid having a contact point that is closed individually by turning the knob, an armature made of a magnetic plate attached to the back of the knob, and a yoke housed in a case facing the armature. The contact point is connected to a power supply circuit of the motor, and the solenoid is connected to the contact point, so that the solenoid is energized when the knob is swung, and the moderation of the upright wall is controlled when the knob is swung. This is done by an operating switch such as a power window so that the armature contacts and is attracted to the yoke of the solenoid when the armature reaches the second inclined surface.

[Effect]

The operation switch of the present invention closes one contact by swinging the knob in either direction, energizing the motor and solenoid for power windows, etc., and the knob does not stick to the solenoid. This is done by pressing the knob all the way down and bringing the armature formed on the underside of the knob into contact with the yoke of the solenoid. In other words, the suction force of the solenoid varies depending on the size of the gap between the yoke and the armature. By using this, there is no need for a dedicated contact for energizing the solenoid.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings, in which the invention is used as an operating switch for a power window of an automobile.

1 is a knob having an operating rod 1a hanging from the lower surface of one side, and a protruding shaft 1b is pivotally supported in a guide hole 7a of a case 7, which will be described later, so that it can swing in two directions (left and right directions in the figure). ing. 2 is an armature made of a magnetic plate attached to the bottom surface of knob 1;
Reference numerals 3 and 4 refer to a spring and change pin inserted into shaft holes drilled from below the operating rod 1a, 5 a solenoid having a core 5a, and 6 a solenoid 5 whose lower end of the core 5a is fitted into a small hole 6a. The yoke is fixed by caulking, and suction pieces 6b, 6c are formed on both sides.

7 is a case made of synthetic resin or the like, and has a guide hole 1 in which the protruding shaft 1b of the knob 1 is rotatably supported.
A, an elongated hole 7b into which the operating rod 1a is fitted, and a bottomed recess 7c into which the yoke 6 is fitted are formed. The yoke 6 to which the solenoid 5 is fixed is fitted and fixed into the recess 7c.

Reference numeral 8 designates a cover that is fitted into the lower opening of the case 7, and is provided with an upright wall 8a at a position corresponding to the lower end of the above-mentioned change pin 4, and has a first inclined surface _8a1 that is inclined downward. Second inclined surfaces 8a ₃ are formed on both sides with moderating portions 8a ₂ interposed therebetween. And normally, the change pin 4 is on the first inclined surface 8.
Since it is located in the center of a ₁ , the knob 1 is held in a horizontal position. Further, contact holding portions 8b are formed on both sides of the upright wall 8a, and there are two possible contact plates 9a, 9b sandwiching the operating rod 1a therebetween, and two movable contact plates 9a, 9b sandwiching the respective movable contact plates 9a, 9b. Fixed contact plate 9
a ₁ , 9a ₂ and 9b ₁ , 9b ₂ are inserted and fixed. Each of the movable contact plates 9a and 9b is bent and arranged to avoid the operating rod 1a, and the contact a of the movable contact plate 9a contacts the contact _a1 of the fixed contact plate _9a1 , and the contact of the movable contact plate 9b b is the fixed contact plate 9
Contact b ₁ is in contact with b ₁ . When the knob 1 is rotated to the right, the operating rod 1a comes into contact with the bent part of the rotating contact plate 9a and is pressed downward as shown in FIG. 3, so that the contact a contacts the contact a ₂ and the contact is switched. It will be done. On the other hand, when the knob 1 is rotated to the left, the operating rod 1a comes into contact with the bent part of the movable contact plate 9b and is pushed upward as shown in FIG. 3, so that the contact b contacts the contact b ₂ and the contact is switched. .

Note that the cover 8 is fixed by engaging the claws 8c provided on both sides with the small holes 7d of the case 7.

Next, to explain the circuit configuration of FIG.
are the contact plates 9a, 9a ₁ , 9a ₂ , 9b, 9 described above.
b ₁ , 9b ₂ shows the connection of each contact, and the third
The same reference numerals as in the figure indicate the same contacts. Reference numeral 10 indicates a motor, which raises the window glass when the current flows in the direction of the solid line, and lowers it when the current flows in the direction of the dotted line. Q is a switching transistor, D ₁ ,
D ₂ is a backflow prevention diode, D ₃ is solenoid 5
A diode 11 is used as a comparator to control the on/off state of the transistor Q, and when the windshield rises or falls and the current to the motor 10 increases, the transistor Q is turned off. It is something that makes a state. R ₁
~ _R4 is a resistor.

Next, to explain the operation based on the above configuration,
When the knob 1 is in the center position, the contacts a and b are connected to the contacts a ₁ and b ₁ , so no power is supplied to the motor 10 and the circuit.

Next, when the knob 1 is pushed to the right in the figure, the change pin 4 slides on the first inclined surface _8a 1 of the upright wall 8a and is stopped by the moderation portion 8a ₂ . Therefore, the operator knows that the operation is manual in this state. When the knob 1 is pressed to the right, the operating rod 1a of the knob 1 is rotated to the left in FIG _. can be switched from A2 to _A2 . As a result, current flows through the motor 10 in the direction of the dotted line, and the window glass lowers. On the other hand, voltage is also applied to the circuit, but when the motor 10 is rotating, the resistance
Since the current flowing through R ₁ is small, the voltage at one terminal of the comparator 11 is applied to the resistors R ₂ and R ₃ via the diode D _2.
Therefore, the comparator 11
The output of transistor Q becomes high level, and
Turn on. As a result, the solenoid ₅ is energized via the diode D2, but at the first operation amount of the knob 1 described above, the gap between the armature 2 and the suction piece 6b of the yoke 6 is large, so suction by suction force is not possible. It won't happen. When the pressing force on the knob 1 is released, the force exerted by the moderation part 8a ₂ on the chain pin 4 to return it to the neutral point is strong, so the knob 1
is returned to the neutral point.

Note that when knob 1 is pressed to the left, contact b is switched from contact b ₁ to contact b ₂ by the same operation as described above, current flows in the direction of the solid line to motor 10, and the windshield rises. However, when the pressing force on the knob 1 is released, the knob 1 is returned to the neutral point.

Next, when a pressing force is applied further than the first operation amount described above, the change pin 4 slides over the moderating portion 8a ₂ and on the second inclined surface 8a ₂ until the armature 2 comes into contact with the suction piece 6b of the yoke 6. At this time, the movable contact plate 9a is displaced by the operating rod 1a,
Contact a is switched to contact _a2 , and the motor 10 and solenoid 5 are energized. Therefore, the armature 2 comes into contact with the suction piece 6b and is suctioned at the same time, and the knob 1 does not return to the neutral point even if the pressing force is released.

When the windshield finishes descending, motor 1
As the load on the comparator 1 increases, the amount of current increases, and the voltage at one terminal of the comparator 11 increases.
The output from the transistor Q becomes low level, and the transistor Q is turned off. As a result, the power supply to the solenoid 5 is cut off, so that the attraction force disappears, and the change pin 4 slides on the second and first inclined surfaces 8a ₃ and 8a ₁ , and the knob 1 is returned to the neutral point.

Note that even when the knob 1 is pressed to the left, the armature 2 is attached to the suction piece 6c of the yoke 6 in the same manner as described above.
When the window glass is completely closed, the knob 1 is returned to its neutral position.

Although the above embodiment has been described as an operating switch for power windows, a sunroof attached to the roof of a car so that it can be opened and closed is not completely different from a power window in terms of circuitry, so it is not suitable for operating such a sunroof. It can also be applied.

[Effect of idea]

As described above, the present invention has the advantage that the contact point between the motor and the solenoid can be used in common, and therefore the structure of the switch is simple, it can be downsized, and it can be manufactured at low cost.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a side view of the assembled state, Fig. 3 is a plan view, and Fig. 4 is an example of the switch when used in the above switch power window. It is a circuit diagram. 1... Knob, 2... Armature, 4... Chain pin, 5... Solenoid, 6... Yoke, 7
...Case, 8a... Standing wall, 9... Contact, 10
……motor.

Claims (1)

[Claims for Utility Model Registration] A knob attached to the case so as to be swingable; a change pin housed in an operating rod extending from the knob and having a tip protruded by a spring force; , an upright wall having a valley-shaped inclined surface having a first inclined surface on which the tip of the chain pin slides and a second inclined surface formed from the first inclined surface via a moderation part; , a solenoid having contacts that are individually closed by swinging the knob in either direction, an armature made of a magnetic plate attached to the back surface of the knob, and a yoke housed in a case facing the armature. The contact point is connected to a power supply circuit of a motor such as a power window, and the solenoid is connected to the contact point, and when the knob is swung in either direction, the solenoid is energized and the knob is energized. An operating switch for a power window or the like, characterized in that when the armature crosses the moderation part of the upright wall and reaches the second inclined surface during rocking, the armature contacts and is attracted to a yoke of a solenoid.