JPH0125172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switch operating mechanism, and more particularly to a switch operating mechanism suitable for a direction indicating device or a power window device of an automobile.

In conventional automobile direction indicator switch operation mechanisms, there is a holding engagement mechanism that holds the operating rod in that position when it is rotated from a neutral position to the right or left, and a holding engagement mechanism that holds it in that position when it is pressed from a specific direction. It is equipped with a cancel mechanism for releasing the holding of the holding engagement mechanism and returning the operating rod to the neutral position, and a cancel pin for pressing this cancel mechanism, and the holding engagement mechanism, the cancel pin, and the cancel mechanism are They were mechanically linked and had to be concentrated in a narrow area. Therefore, there was a drawback that the adaptability of component arrangement was lacking. To avoid this drawback, there is a structure in which the operating rod is directly attracted to the magnet in the operating position, but in this case, it is necessary to overcome the attraction force of the magnet in order to return the operating rod to the neutral position. Therefore, it has the disadvantage of requiring a large amount of force. In other words, it has the drawbacks of poor operability and poor feeling. When things get really tough,
There was also a risk that the excess force would cause the control lever to overstalk and turn on the contact on the opposite side.

The present invention aims to correct the above-mentioned drawbacks, and its purpose is to provide a switch operating mechanism that increases the degree of freedom in component placement and is highly adaptable to diversification of component placement. There is a particular thing.

Another object of the present invention is to provide a switch operation mechanism that operates reliably, is highly reliable, has good operability, and has a good feeling of operation.

Yet another object of the present invention is to provide a switch operating mechanism that allows the operating rod to be easily returned to the neutral position by an external signal.

A first embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In FIG. 1, reference numeral 1 denotes an operating rod, which is pivotally supported by a pin 2 fixed to the main body (not shown). 3 is a suction plate, and the pin 2
The suction parts 3a and 3a' are fixed to the side surface of the fan-shaped tip. Furthermore, stoppers 3b and 3b' whose tips are engaged with notch engagement parts 1a and 1a' of the operating rod 1 are provided inside the suction parts 3a and 3a'. This stopper 3
b, 3b' are connected to the suction part 3 via leaf springs 3c, 3c'.
Pins 3e, 3e' are fixed to hanging pieces 3d, 3d' which are attached to the parts a, 3a' and integrally formed. The pins 3e, 3e' are guided in guide grooves 4 formed in the main body (not shown). Therefore, the stoppers 3b, 3b' are connected to the leaf springs 3c, 3
c', and the pins 3e, 3e' are pressed against the lower edge of the guide groove 4. Here, if the operating rod 1 is rotated clockwise, the suction part 3a is rotated clockwise via the stopper 3b, while the stopper 3b' is rotated clockwise via the stopper 3b.
The structure is such that e' is rotated by the guide groove 4 against the spring force of the leaf spring 3c' and separated from the engaging portion 1a' of the operating rod 1. Also, the suction parts 3a, 3
The outer surface of a' faces the electromagnets 5, 5'.

Electromagnets 5, 5' are fixed to the main body (not shown),
When the attracting part 3a or 3a' comes close to or comes into contact with the electromagnet 5, 5' when a current is flowing through the electromagnets 5, 5', the structure is such that the attracting part 3a or 3a' is attracted and held in that position. The lower end of the operating rod 1 in the drawing is engaged with a recessed portion of a contact holder 6.
A movable contact 7 is fixed to the contact holder 6, and when the operating rod 1 rotates clockwise or counterclockwise in the figure and the contact holder 6 is displaced in the left-right direction in the figure, the movable contact 7 moves in the direction shown in the figure. The fixed contacts 8R and 8N, or 8L and 8N, which are fixed to the main body, are brought into contact with each other to establish conduction between the respective contacts. The movable contact 7 fixed to the contact holder 6 and the fixed contacts 8N, 8R and 8L fixed to the main body constitute a switch means for energizing or demagnetizing the electromagnets 5, 5', and the movable contact 7 and the fixed contacts Another set of 8N, 8R, and 8L is provided to constitute a means for turning on or off the lamp. Further, a spring 9 urges the suction plate 3 to a neutral position relative to the main body (not shown). Further, a spring 10 biases the operating rod 1 to a neutral position with respect to the suction plate 3.

Next, we will explain the operation of this embodiment in Figures 1 and 2.
This will be explained using figures. When the operating rod 1 is rotated clockwise in the figure, the suction plate 3 is rotated clockwise via the stopper 3b against the spring force of the spring 9, and the suction portion 3a contacts the electromagnet 5 and rotates. movement is stopped. In this position, the fixed contacts 8R and 8N are short-circuited by the movable contact 7, so a power source (not shown) passes through the electromagnets 5 and 5' in parallel, and passes through the fixed contacts 8R and 8N and the normally closed contact SR of the cancel sensor. The power is turned on. Therefore, the suction portion 3a is attracted by the electromagnet 5 and held in that position. On the other hand, from the power supply to flasher circuit F, fixed contact 8
A turn signal light that is a load lamp passes through N' and 8R'.
Flash LR. The force required to rotate the operating rod 1 at this time can be set to an appropriate value depending on the strength of the bias of the spring 9.

Next, to explain the case of manually turning off the direction indicator light LR, when the operating rod 1 is rotated counterclockwise, the stopper 3b'
Since it is out of position a', only the operating rod 1 is rotated counterclockwise to move the contact holder 6 to the right in the figure and return to the state shown in the figure. Therefore, the conduction between the fixed contacts 8N and 8R by the movable contact 7 is cut off.
When the power to the direction indicator light LR is cut off, the electromagnet 5,
Since the power to the suction plate 5' is cut off and the suction force for the suction portion 3a is lost, the suction plate 3 is automatically returned to the neutral position by the spring 9. At this time, even if you release your hand from the operating rod 1, the spring 10 automatically holds it at the neutral position. This means that the turn signal light
The force required to rotate the operating rod 1 counterclockwise in order to turn off the LR can be appropriately determined by the spring 10, and by simply rotating the operating rod 1 slightly counterclockwise, After that, it can be automatically returned to the neutral position. Furthermore, since the return of the suction plate 3 and the operating rod 1 to the neutral position is not carried out against the suction force of the electromagnet 5, applying excessive force causes an overstroke and lights up the lamp LL on the opposite side. Therefore, the operation can be performed reliably. Furthermore, if the biasing forces of springs 9 and 10 are appropriately selected,
The operation of operation lever 1 has a better feeling.

Next, to explain the case of automatically turning off the direction indicator light LR, cancel sensors SR and SL may be connected in series to the fixed contacts 8R and 8L.
The cancel sensors SR and SL are opened by the reverse rotation of the steering wheel after the vehicle has completed a turn, and the cancel sensor SR is released by the reverse rotation after the vehicle has turned to the right. As a result, the electromagnet 5,
Since the power to 5' is cut off, the suction plate 3 is returned to the neutral position by the spring 9, and the operating rod 1 is also returned to the neutral position by the spring 10, returning to the state shown in the figure.

Next, a second embodiment of the present invention will be described with reference to FIG. In this embodiment, the stoppers 3b and 3b', which are the structural members of the first embodiment, are omitted.
The spring 9 that biases the suction plate 3 to the neutral position is set to be stronger than the biasing force of the spring 10 that biases the operating rod 1 to the neutral position relative to the suction plate 3. . When the operating rod 1 is rotated clockwise, since there is no stopper in this embodiment, when the operating rod 1 is rotated clockwise against the biasing force of the spring 10, the operating rod 1 moves inside the suction section 3a. comes into contact with. In this state, the movable contact 7 of the contact holder 6 moved by the operating rod 1 short-circuits the fixed contacts 8R and 8N. Then, when the operating rod 1 is further rotated, the suction part 3 of the suction plate 3
a is brought into contact with the electromagnet 5. The configuration other than the above is the same as that shown in FIG. 1, and the electrical circuit connections shown in FIG. 2 are used as they are. Next, to explain the operation, when the operating rod 1 is rotated clockwise and the fixed contacts 8R and 8N are short-circuited by the operating rod 1, the electromagnets 5, 5' and the direction indicator LR are energized, and the corresponding The direction indicator light LR flashes. However, the electromagnets 5, 5' and the suction parts 3a, 3
The distance from a′ is the same, and each suction part 3
Since the forces acting on a and 3a' have been canceled, the suction plate 3 does not rotate in any direction yet. When you release your hand from the operating rod 1 in this state, the operating rod 1 is returned to the neutral position by the spring 10, the electromagnets 5, 5' and the turn signal light LR are de-energized, and all members are turned off. It can automatically return to the initial neutral position. In other words, it is suitable for temporarily flashing a direction indicator light when changing lanes, for example. Next, when force is applied to the operating rod 1 clockwise, the suction portion 3a is pushed, and the suction plate 3 is rotated clockwise against the biasing force of the spring 9. At this time, since the electromagnet 5 is already energized, when the attraction part 3a approaches the electromagnet 5, it is attracted and attracted. During this operation, the reaction force against the force applied to the operating rod 1 from the outside changes. The change in the reaction force and the difference in reaction force caused by the springs 9 and 10 can give a sense of moderation to the operation of the operating rod 1. Due to the above-described operation, the state in which the suction portion 3a is attracted to the electromagnet 5 is maintained as it is even if the hand is released from the operating rod 1. Therefore, the direction indicator light LR continues to blink. Note that the operation of turning off the direction indicator light LR manually or by the cancel sensor is the same as in the previous embodiment, so a description thereof will be omitted. Therefore, according to this embodiment, the operating rod 1
It is possible to give an appropriate sense of moderation to the operation of the vehicle, and also to temporarily flash the direction indicator light, and furthermore, the configuration can be further simplified. Regarding other effects, the same effects as those of the previous embodiment can be obtained.

In the above embodiment, the control of a direction indicator lamp was explained as a load, but this can also be used as a switch for a power window, for example.

As explained above, the switch operation mechanism according to the present invention has a simple and robust structure, and can increase the degree of freedom in the arrangement of parts. Therefore, excellent adaptability to diversification of parts arrangement is obtained, and the operation is reliable and reliable, there is no risk of malfunction, and the operation is easy and feels good. Further, since the operating state is maintained by an electromagnet, the operating lever can be easily returned to the neutral position by an external signal.

[Brief explanation of drawings]

FIG. 1 is a side view showing a first embodiment of the present invention;
FIG. 2 is an electrical circuit diagram of the embodiment shown in FIGS. 1 and 3, and FIG. 3 is a side view showing another embodiment of the present invention. 1... Operating rod, 2... Pin, 3... Suction plate, 3
a, 3a'... suction part, 3b, 3b'... stopper,
4... Guide groove, 5... Electromagnet, 6... Contact holder, 7... Movable contact, 8R, 8L, 8N
...Fixed contact, 9,10...Spring.

Claims (1)

[Scope of Claims] 1. An operating lever that is supported by the main body and selectively controls two loads by being displaced in two directions; a suction plate that is displaced in accordance with the displacement of the operating lever; and the operating lever. a first biasing means for biasing the rod to the neutral position of the suction plate; a second biasing means for biasing the suction plate to the neutral position of the main body; and an electromagnet that attracts the suction plate and holds it in a displaced position when the switch mechanism is closed, and when the suction plate is attracted by the electromagnet, the operation lever is moved. The switch operation mechanism is characterized in that the suction plate returns to a neutral position when the switch mechanism is brought into an open state by displacing the switch, or when electricity to the electromagnet is cut off by another switch.