JPS6328824Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a wiper-linked window washer operation switch.

In general, wipers are used to automatically wipe off rainwater, snow, etc. that adhere to the windshield surface of a car, ensuring the driver's forward visibility. It is used to clean the glass surface by spraying washer liquid on it. Since the window washer is thus used in conjunction with the wiper, it is desirable that the window washer operation switch can be operated in conjunction with the wiper operation switch.

Therefore, in the conventional wiper-linked window washer operating switch, when the operating knob is swung from its neutral point to the first swing angle, the operating knob is held in that position by the moderation mechanism, and the wiper contacts are closed. When the wiper operates continuously and the operation knob is further oscillated and held at the second oscillation angle,
There was one in which the window washer contacts closed only while the wiper was held, allowing the washer fluid to come out while the wiper was still operating. However, with conventional devices like this, the wipers operate before the windshield washer, so to prevent scratches on the windshield when it is not raining, the washer fluid is dispensed first and then the wipers are operated. I had a problem where I couldn't do it even if I tried to activate it. In addition, in view of this problem, in addition to the conventional switch, by swinging the operating knob from its neutral point in a direction opposite to the first swing angle,
Some models were designed to operate only the window washer, but in this case, in order to operate the wiper after discharging the washer fluid, the operating knob had to be operated in one direction and then in the opposite direction. There was a problem that the operation was complicated.

In addition, one of the switches that can be used as an operation switch for a wiper-linked window washer is the conventional toggle switch (Utility Model Application No. 52-49873).
When the operating knob is swung from its neutral point to the first oscillating angle to the left or right, the operating knob is held at the first oscillating angle by the moderation mechanism and the toggle switch moves to the first oscillating angle at that position. When the first contact closes and the operating knob is swung beyond the first oscillation angle to the second oscillation angle and held in that position without letting go of the knob, the first contact closes while the operation knob is held at that position. While it remains closed, another second contact closes, and when you release your hand from the operating knob, the operating knob automatically returns to the first swing angle. However, this toggle switch is equipped with a moderation mechanism for both the left and right first swing angles, and when this switch is used, for example, the wiper or windshield wiper is operated for a short period of time, and then the operation knob is moved to the neutral position. Even if you want to automatically return to the neutral point and stop the wipers and window washers mentioned above, it is necessary to return to the neutral point, which makes the operation complicated.
Another problem was that the structure was complicated, the number of parts was large, and the cost was high.

This idea was made in view of the problems of the conventional ones.The operating knob is attached to a switch box so that it can swing freely, and a contact base at the bottom of the switch box is mounted on a contact base that corresponds to the swing angle of the operating knob. First and second fixed contacts on the left and right are provided, and one of these fixed contacts is used as a wiper and window washer contact, and the other is a movable contact. A contact is provided so that the contact can be pressed by the operation knob and comes into contact with the fixed contact, and a moderation mechanism is provided in the portion of the movable contact that comes into contact with the first fixed contact that is the wiper contact. By being able to hold the wiper, you can operate the wiper continuously even if you take your hand off the operating knob as before, and you can also dispense washer fluid while the wiper is operating.
Furthermore, you can dispense the washer fluid first and then operate the wipers, and when you release the operating knob at this time, both the window washer and wiper will automatically stop operating, making it extremely easy to operate. The object of the present invention is to provide a wiper-linked window washer operation switch that has a simple structure, reduces the number of parts, and reduces costs.

An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention,
In the figure, reference numeral 1 denotes a switchbox, and the switchbox 1 is a cylinder with a rectangular cross section, into which an operating knob 2 is inserted from above. A swing shaft 2b protruding from the surface is swingably supported on the upper side wall of the switch box 1. The operating portion 2a is generally flat, and its upper surface is curved into an arc shape, with the left and right ends being higher. A cylindrical guide portion 2c is integrally formed downward on the lower surface of the operating portion 2a, and a push rod 3 is inserted into the guide hole 2d of the guide portion 2c.
is inserted so as to be vertically movable, and the push rod 3 is urged downward by a spring 8 interposed between the bottom of the spring mounting hole 3a and the bottom of the guide hole 2d.

In addition, at the lower end of the switch box 1,
A contact base 4 is attached, and the contact base 4 is made of an insulating material and has a roughly flat plate shape, and has a central stepped portion 4a in its center and a high outwardly extending portion on the left side in FIG. A stepped left step portion 4b is protruding from the center step portion 4a, and a step-like right step portion 4c which is higher outwardly than the left step portion 4b is provided on the right side of the central step portion 4a in the figure. .

A common contact 5a, which is a common contact, is buried in the central step portion 4a, and is grounded. In addition, a first left fixed contact 5b, which is a wiper contact, is embedded in the left step portion 4b at a position corresponding to the first left swing angle of the operation knob 2. A second left fixed contact 5c, which is a window washer contact, is buried at a position corresponding to the large second left swing angle. Further, in the right step portion 4c, a right first fixed contact 5d, which is a window washer contact, is located at a position corresponding to the right first swing angle of the operation knob 2.
A second right fixed contact 5e, which is a wiper contact, is buried at a position corresponding to a second right swing angle that is larger than the first right swing angle. And these fixed contacts 5b, 5
C, 5d, and 5e are each connected to a wiper circuit or a window washer circuit.

Further, a roughly V-shaped movable contact 6 made of a leaf spring-like member is attached to the common contact 5a of the contact base 4 with its bottom 6a fixed, and the movable contact 6 uses the bottom 6a as a fulcrum. It has an upward repulsive force, and protrusions 6b to 6e that can come into contact with the fixed contacts 5b to 5e are provided on the lower surface thereof. The movable contact 6 also has a moderation mechanism 6g having a protrusion 6f near the first left protrusion 6b that comes into contact with the first left fixed contact 5b, which is a wiper contact.
is formed, and the moderation mechanism 6g is such that the operation knob 2 is operated by the repulsive force of the movable contact 6.
This prevents the operation knob 2 from returning to the bottom portion 6a, which is the neutral point. Reference numerals 7a and 7b are stoppers provided protruding from the side wall of the switch box 1, and these stoppers are used when the operation knob 2 is connected to the second
This prevents it from swinging beyond the swing angle.

Next, the operation will be explained along with FIG. 2. When the operating knob 2 is held at its neutral point as shown in FIG. Neither wipers nor window wipers are working. When it is desired to operate the wiper continuously, such as on a rainy day, the operating knob 2 may be swung to the left first swiveling angle beyond the protrusion 6f, as shown in FIG. As a result, the push rod 3 of the operation knob 2 presses the upper surface of the first left protrusion 6b of the movable contact 6, and the first left protrusion 6b comes into contact with the first left fixed contact 5b, closing the wiper contact, and the above-mentioned The push rod 3 is connected to the above protrusion 6f.
Even if you release your hand from the operating knob 2, the operating knob 2 will not be returned to the neutral point due to the repulsive force of the movable contact 6, and the operating knob 2 will be at the first left swing angle. The wiper will continue to operate without stopping. Also, if you want to dispense washer fluid while the wiper is operating, turn the operating knob 2 to the second position.
As shown in Figure c, all you have to do is swing it to the second left swing angle and hold it in that position without letting go of your hand.
As a result, the push rod 3 presses the tip of the movable contact 6 during that time, and the second left protrusion 6c comes into contact with the second left fixed contact 5c, closing the window washer contact. Since it remains closed, the washer fluid will come out while the wiper is still operating. Furthermore, when you release your hand from the operating knob 2, the operating knob 2 is returned to the first left swing angle by the repulsive force of the movable contact 6, and is held at the first left swing angle by the moderation mechanism 6g. As a result, the window washer contacts open, so the washer fluid stops flowing and only the wipers continue to operate. When it is desired to stop the wiper, it is sufficient to return the operating knob 2 to the neutral position, which opens the wiper contact and stops the wiper.

Next, on a day when it is not raining, first apply washer fluid to the windshield, and then if you want to operate the wipers for a while, first turn the operating knob 2 to the right first position as shown in Figure 2d. The operating knob 2 may be swung to the right oscillating angle and held at that position for a while, and then the operating knob 2 may be swung to the second right oscillating angle and held at that position, as shown in FIG. As a result, while the operating knob 2 is held at the first right swing angle, the first right protrusion 6d of the movable contact 6 comes into contact with the first right fixed contact 5d, the window washer contact is closed, and the washer liquid is released. While the operation knob 2 is held on the windshield and the operating knob 2 is held at the second right swing angle, the second right protrusion 6e of the movable contact 6 comes into contact with the second right fixed contact 5e, and the wiper contact is turned on. Since the window washer contacts remain closed, the wiper operates while the washer liquid comes out. When you release your hand from the operating knob 2, the operating knob 2 is returned to the neutral point by the repulsive force of the movable contact 6, so both the window washer contact and the wiper contact open, and the window washer and wiper are both opened. Stop. However, the wiper does not stop in the middle of the wiping operation, but stops after the blade returns to the lower end, so the window washer stops first and the wiper stops a little later.

According to the wiper-linked window washer operating switch of this embodiment, which is constructed and operated in this manner, the operating knob 2 is held at the first left swing angle of the movable contact 6, and the wiper contact is kept closed. Since the moderation mechanism 6g is provided, on rainy days, the wiper can be operated continuously by operating the operating knob 2 to the left first swing angle, and the moderation mechanism 6g is provided for the right first and second swing angles. No mechanism was provided, and the right window washer contact and wiper contact were closed only while the operation knob 2 was held at the right first and second swing angles, so the washer fluid was released. It is easy to operate the wipers for a short time, and the operability is very good both on rainy and non-rainy days.

Furthermore, there is no need for multiple push rods and movable contacts as in the past, and the number of parts can be reduced and costs can be reduced.

In the above embodiment, the right step portion 4c is formed higher than the left step portion 4b, but both step portions 4c, 4b may be made to have the same height, or the right step portion 4c may be formed lower than the left step portion 4b. You can.

As described above, according to the wiper-linked window washer operating switch according to the present invention, when the operating knob is swung to the first left swing angle, the operating knob is held at that position and the wiper is not continuously operated. I can do it,
If you swing the operating knob to the first right swing angle and hold it there for a while, then swing it to the second right swing angle and hold it there, the washer fluid will come out first and then the wipers will operate, so you can remove the rain. Even when the wipers are used on a day when it is not raining, they do not damage the windshield and have the effect of providing an extremely easy-to-operate switch. In addition, the structure is simple and the number of parts can be reduced, thereby reducing costs.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a wiper-linked window washer operation switch according to an embodiment of the present invention;
FIG. 2 is a diagram for explaining the operation of the above embodiment, and in figures a, b, c, d, and e, the operating knobs are at the neutral point, the first left swing angle, the second left swing angle, and 1st right
It is a front view which shows the case where it is at a rocking angle and a right second rocking angle. 1...Switch box, 2...Operation knob, 2
a...Operation unit, 3...Push rod, 4...Contact base, 5b...Left first fixed contact (wiper contact), 5c...Left second fixed contact (window washer contact), 5d... Right first fixed contact (windowwasher contact),
5e... Right second fixed contact (wiper contact), 6g... Moderation mechanism, 8... Spring.

Claims (1)

[Scope of utility model claims] An operation knob is rotatably supported on a switchbox and has an operation section at its upper end and a push rod at its lower end that is biased downward by a spring; first and second fixed contacts on the left and right sides, two on each side, corresponding to the first swing angle on the left and right and the second swing angle larger than the first swing angle; and the center of the contact base. A toggle switch comprising a movable contact made of a leaf spring-like member having a fulcrum at a portion thereof, the movable contact having a first oscillating angle and a second oscillating angle at a first oscillating angle in response to operation of an operating knob. contact with the first and second fixed contacts, and has a moderation mechanism that restricts the return movement of the operating knob to the neutral point due to the repulsive force of the movable contact only at the first swing angle on either the left or right side. Among the fixed contacts, the first fixed contact provided with the moderation mechanism is a wiper contact, the second fixed contact is a window washer contact, and the other first fixed contact is a wiper contact.
A wiper-linked window washer operating switch characterized in that the fixed contact is a window washer contact, and the second fixed contact is a wiper contact.