JPH0735245Y2 - Slide switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a slide switch used for a power window switch or the like for driving a motor of a power window of a vehicle in a forward direction and a reverse direction.

[Conventional technology]

Conventionally, a seesaw switch as shown in FIG. 6 has been used as a seesaw switch. This switch is the base
A switch knob 102 is rotatably held on the upper surface of 101, and a plunger is provided below the switch knob 102 via a coil spring 103.
104 is elastically held, and a substantially V-shaped movable contact 105 is attached to the tip of this plunger as shown in the figure. Then, recesses are provided at both ends of the movable contact 105 at positions where they abut the fixed contacts, and when the switch knob 102 is rotated, the movable contacts 105 are pressed and abut the fixed contacts 106 and 107 provided at the corresponding positions. Thus, the contacts are opened and closed.

[Problems to be solved by the device]

However, in such a conventional seesaw switch, when the movable contact 105 comes into contact with the fixed contacts 106 and 107,
However, if the switching current is large, there is a drawback that contact failure is likely to occur when the contacts are welded or a foreign object is sandwiched.

The present invention has been made in view of the above problems of the conventional seesaw switch. By combining the seesaw switch and the slide switch, a wiping operation is added when the movable contact of the seesaw switch is contacted, and such a problem is caused. A technical issue is to make a slide switch that can solve the problems.

[Means for Solving the Problems]

The present invention is a slide switch used for a power window switch or the like for driving a motor of a power window of a vehicle in forward and reverse directions. The slide switch is movably held in a predetermined direction in a switch base in a housing, Along with a guide plate with a striker that has a slit-shaped through hole that is perpendicular to the guide plate, a guide plate that is fixedly attached to the upper surface of the switch base, and that has a guide groove formed at an angle from the sliding direction of the striker, and a guide groove of the guide plate. Switch knob that slides on the lower surface of the striker, the movable contact that is held on the lower surface of the striker, the blanker that is elastically held on the lower surface of the switch knob and presses the movable contact, and the moving direction of the striker that is provided on the bottom surface of the switch base. And fixed contacts arranged in parallel with each other.

[Action]

According to the present invention having such characteristics, the switch knob and the plunger provided below the switch knob are moved along the guide groove of the guide plate fixedly provided on the upper surface of the switch base by operating the switch knob. To do. At this time, since the switch knob and the plunger are arranged at a certain angle with respect to the sliding direction of the striker, the striker moves in the predetermined direction in the switch base accordingly. Then, the pressing position of the movable contact that is in contact with the lower surface of the plunger changes. Further, the movable contact itself slides with the movement of the striker to open and close the fixed contact provided on the bottom surface of the base. Therefore, the wiping operation is performed along with the sliding movement of the movable contact itself.

[Effect of device]

Therefore, according to the present invention, the wiping operation, which is lacking in the conventional seesaw switch, is added. Therefore, it is possible to prevent the contact failure even when foreign matter is caught between the fixed contact and the movable contact. Further, since the wiping operation is performed, there is an effect that the welding resistance can be improved even when the switching current is large.

[Explanation of Examples]

FIG. 1 is an assembly configuration diagram of a slide switch according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view in the longitudinal direction thereof, and FIGS. 3 (a) and 3 (b) are sectional views taken along the line AA and B, respectively. It is a -B line sectional view. As shown in these figures, the slide switch according to the present invention has a housing-shaped base 1 whose center is partitioned by a partition plate 1a. As shown in FIG. 4, fixed contacts 2a to 2c and 2d to 2f are formed parallel to the longitudinal direction on the lower surface of the base 1 by, for example, insert molding.
In the pair of housings of the base 1, strikers 3 and 4 are provided so as to be movable in the arrow C direction. Striker 3
Numerals 4 and 4 are slit-shaped members, for example, rectangular parallelepiped members provided with through holes of an elliptic cylinder shape as shown in the figure. Striker 3,
A rectangular groove for holding the movable contact is formed on the lower surface of 4 along the longitudinal direction thereof. The movable contacts 5 and 6 are substantially V-shaped members as shown in FIGS. 3 (a) and 3 (b), and curved portions that curve downward are formed at the center and both ends thereof. A guide plate 7 is fixed to the upper part of the base 1. As shown in the drawing, the guide plate 7 is provided with elliptical guide grooves 8 and 9 formed by being inclined at a predetermined angle from the longitudinal direction of the base 1. Now, the guide groove of the guide plate 7,
As shown in the figure, columnar switch knobs 10 and 11 each having a flange at the center are slidably provided along the guide groove on the 9 as shown. The lower surfaces of the switch knobs 10 and 11 are formed in a cylindrical shape, and the plungers 14 and 15 are elastically held therebelow via coil springs 12 and 13, respectively. Plungers 14 and 15 are first
As shown in the figure, it is housed in the cylindrical portion of the strikers 3 and 4. The cover 1 having rectangular openings 16a and 16b in the portions corresponding to the guide grooves 8 and 9 of the guide plate 7 from the upper surface thereof
Six are provided. The cover 16 has four substantially U-shaped engaging portions for engaging projections provided on the four side walls of the base 1.

FIG. 5 is a diagram showing a state in which a slide switch composed of these two switches is connected to a power window motor. In the figure, the fixed contacts 2b and 2e are connected to both ends of the power window motor 17, the fixed contacts 2c and 2f are connected to the ground end of the vehicle, and the fixed contacts 2a and 2d are connected to the positive end of the battery 18, respectively.

Next, the operation of this embodiment will be described. Switch knob 1
0 and 11 respectively move along the guide grooves 8 and 9 of the guide plate 7 as described above. For example, when the switch knob 10 is located at the center of the guide groove 8, the plunger 14 is located at the center of the striker 3 as shown in the sectional view of FIG. 3 (a), and the tip of the plunger 14 moves. The contact 5 is in contact with the central depression of the contact 5. In this state, the movable contact 5 is provided on the bottom surface of the base 1 and only comes into contact with the fixed contact 2b, so that the contact is in a neutral state. Similarly, if the switch knob 11 is also in the central portion of the guide groove 9, the movable contact 6 comes into contact only with the fixed 2e and the contact is in a neutral state. Switch knob
For example, if the switch 11 is operated along the guide groove in the direction of arrow D1 shown in FIG.
The operation force is applied to 15, and the striker 4 moves in the direction of arrow D2. At this time, the tip of the plunger 15 slides on the movable contact 6 so that the depression has a fixed contact as shown in FIG. 3 (b).
By abutting on 2d, the fixed contacts 2d, 2e are closed. Similarly, if the switch knob 11 is operated in the opposite direction to D1, the striker 4 moves in the opposite direction to D2, and the movable contact moves to close the fixed contacts 2e and 2f. . The same applies to the operation of the switch knob 10.

Thus, in the slide switch according to the present invention, not only the contacts are interrupted like the conventional seesaw switch, but also the contacts are interrupted with the sliding operation, so that foreign matter is caught between the contacts. Also in the case of contact, poor contact can be prevented and the welding resistance can be improved.

[Brief description of drawings]

FIG. 1 is an assembly configuration diagram of a slide switch according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view in the longitudinal direction thereof, FIG. 3 (a) is a sectional view taken along the line AA, and FIG. 3 (b). Is the switch knob
Sectional view taken along line BB when moving 10 in the direction of arrow D1, 4th
The figure shows the fixed contact state on the switch base 1, the fifth.
FIG. 6 is a diagram showing a state in which the switch of this embodiment is connected to a power window motor, and FIG. 6 is a sectional view showing an example of a conventional seesaw switch. 1 …… Base, 2a ～ 2f …… Fixed contact, 3,4 …… Striker, 5,6 …… Movable contact, 7 …… Guide plate, 8,9 …… Guide groove, 10,11 …… Switch knob, 14,15 …… Plunger, 16
……cover

Claims (1)

[Scope of utility model registration request] 1. A striker, which is movably held in a predetermined direction in a housing-shaped switch base and has a slit-shaped through hole that is perpendicular to the moving direction, and is fixedly attached to an upper surface of the switch base. A guide plate having a guide groove formed to be inclined with respect to the sliding direction of the striker, a switch knob that slides along the guide groove of the guide plate, a movable contact held on the lower surface of the striker, and the switch knob A slide that has a plunger that is elastically held on the lower surface of the switch and presses the movable contact, and a fixed contact that is provided on the bottom surface of the switch base and that is arranged parallel to the moving direction of the striker. switch.