JPH0521794Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a switch that has both the functions of a push button switch and a sliding switch.

[Prior Art] Conventional switches of this type include push button switches that open and close electrical circuits by pushing a driver, sliding switches that open and close by sliding a driver, and switches that open and close by rotating a driver. , various types are widely used. However, since the drive body generally operates in a single manner, such as a pushing motion, a sliding motion, or a rotational motion, there is a drawback that the function as a switch must also be unified.

Furthermore, as disclosed in Japanese Utility Model Application No. 53-16882, a slide/push button switch has been proposed in which a single push button functions as both a push switch and a slide switch. In this example, since the tip of the push button is directly rubbed against the movable contact piece, the movable contact piece is frequently forced to undergo unreasonable elastic deformation, resulting in severe fatigue and the possibility of poor contact with the fixed contact piece. Otherwise, the spring force to suppress the push button is insufficient, resulting in instability.

[Purpose of the invention] The purpose of the invention is to improve the shortcomings of the conventional example, and to provide a switch that has both the functions of a push button switch and a slide switch using one driving body, which operates reliably and without strain. The objective is to provide a switch with high operability and reliability.

[Summary of the invention] The gist of the invention to achieve the above objectives is as follows:
A fixed contact having a contact point at the tip, a movable contact piece having a contact point opposite to the contact point of the fixed contact piece in the middle part and arranged in parallel with the fixed contact piece, and an auxiliary spring arranged in parallel with the movable contact piece. , a separator attached to the tip of the movable contact piece, the tip of which is slidably in contact with the inner surface of the auxiliary spring, and a pressing portion that is in contact with the outer surface of the auxiliary spring and is movable through the auxiliary spring and the separator. The auxiliary spring includes a driving body that presses the contact piece and is movable in the pressing direction and in a direction perpendicular to the pressing direction, and the auxiliary spring has a first bent part in which the tip of the separator fits into the intermediate part, and a tip part. has a second bent part bent in the opposite direction to the first bent part, and the sliding range of the driving body is changed from the original position where the pressing part enters the second bent part to the first bent part. This switch is characterized in that the switch extends slightly beyond the bending part of the switch.

[Embodiments of the invention] The invention will be described in detail based on illustrated embodiments.

FIG. 1 shows an embodiment of the switch according to the present invention, in which a switch base 1 made of an insulating material such as synthetic resin is attached to a base 2, and a fixing member made of conductive metal strips facing each other at an appropriate distance is attached to the base 2. A contact piece 3 and a movable contact piece 4 are attached to the switch base 1. Contacts 3a and 4a are provided on opposing surfaces of the tips of the fixed contact piece 3 and the movable contact piece 4, respectively, and connecting ends 3b and 4b of the fixed contact piece 3 and the movable contact piece 4 are provided from the opposite side of the switch base 1. is prominent. Further, a thin plate-like auxiliary spring 5 made of metal or synthetic resin is attached to the switch base 1 at an appropriate distance from the movable contact piece 4. First and second bent portions 5a and 5b are provided which are bent in the direction. A separator 6 made of, for example, synthetic resin is fixed to the movable contact piece 4, and the tip thereof is slidably in contact with the inner surface of the auxiliary spring 5. A pressing portion provided on the driving body 7 presses the fixed contact piece 3 through the auxiliary spring 5 and the separator 6. The knob portion 7a of the drive body 7 protrudes to the outside of the base body 2 through a long hole 8 bored in the base body 2.
If a can be pushed inward as it is, it can also be slid along the elongated hole 8 in a direction perpendicular to this pushing direction. Also,
The driving body 7 is formed with a flange portion 7b large enough to close the long hole 8 from the inside no matter which direction it slides, and this flange portion 7b only closes the long hole 8. Rather, it serves the role of guiding the sliding movement of the driving body 7 and regulating its sliding range, and also serves as a stopper to prevent the driving body 7, which is pressed outward by the auxiliary spring 5, from jumping out. . The sliding range of the driving body 7 is as shown in FIG.
As shown in FIG.
It has reached a point where it has surpassed the above.

FIG. 1 shows a normally off state in which the contacts 3a and 4a are separated, and in this case, the knob 7a is located at the rightmost side of the elongated hole 8 in the drawing. In this original position, the pressing parts of the separator 6 and the driver 7 are fitted into the first bent part 5a and the second bent part 5b of the auxiliary spring 5, which are bent in opposite directions. The driving body 7 stably maintains its position and does not move unexpectedly.

In this state, when the driver 7 is pushed inward against the elasticity of the auxiliary spring 5 by pushing the knob 7a as shown in FIG. 2, the movable contact piece 4 is fixed via the auxiliary spring 5 and the separator 6. It is pressed toward the contact piece 3 side, and the contact 4a comes into contact with the contact 3a, resulting in a make-on state. When the knob 7a is released, the elasticity of the movable contact piece 4 and the auxiliary spring 5 causes the movable contact piece 4,
The auxiliary spring 5 and the driver 7 return to their original positions and return to the off state.

If the normally-on state is to be maintained, push the knob 7a to move the driver 7 to the left side of the slot 8 as shown in FIG. In this case,
The pressing part of the driver 7 slides on the outer surface of the auxiliary spring 5,
The auxiliary spring 5
is pressed, and the tip of the separator 6 is brought into contact with the inner surface of the auxiliary spring 5 between the first bent part 5a and the second bent part 5b, and the movable contact piece 4 is moved to the fixed contact piece 3. You can press it to the side and maintain the normally on state.

In the normally-on state shown in FIG. 3, the pressing part of the driver 7 is in a position over the first bent part 5a, so unless you intentionally move the knob 7a, it will remain in the normal state even if you release your hand. The on state can be maintained stably. Further, when the driving body 7 is returned to the position shown in FIG. 1, the movable contact piece 4 and the auxiliary spring 5 return to the original position shown in FIG. 1 by their respective elasticity, and are in the normally off state. .

In addition, the above-mentioned embodiment has a fixed contact piece 3 and a movable contact piece 4.
4, the positions of the fixed contact piece 3 and the movable contact piece 4 are reversed to make the normally on state, and the movable contact piece is opened by the driver 7. 4 can also be activated to create an off state.

In addition, the illustrated embodiment has a fixed contact piece 3 and a movable contact piece 4.
Although the case where there is one each is shown, it goes without saying that the number may be even larger. Furthermore, although the example shows the case where the switch base 1 is fixed to the base body 2, it is also possible that the switch base 1 and the base body 2 are integrated, and it is also possible to attach the auxiliary spring 5 to the base body 2 side. .

[Effects of the invention] As explained above, the switch according to the invention has the following effects:
It is possible to have both the functions of a sliding switch and a push button switch using one driving body, and it is also possible to turn on the switch instantaneously by simple means, or to maintain the on or off state. It can be selected arbitrarily, and the functionality and versatility of the switch can be improved. In addition, since an auxiliary spring is interposed between the movable contact piece and the driving body, the driving body can be reliably held down by the spring force of both the auxiliary spring and the movable contact piece, ensuring reliable operation. performance and reliability. Furthermore, since the pressing part of the separator and the tip of the driver fit into the first and second bent parts provided in the auxiliary spring in opposite directions, the normally off state can be reliably maintained. Furthermore, in the normally-on state, the pressing portion of the driver is in a position over the first bent portion, so that state can be stably maintained. In addition, whether the driver is pressed or slid, the point of action on the movable contact piece remains unchanged, so the movement of the movable contact piece is simple and the state of contact with the fixed contact piece is stable. I can do it. Moreover, since the movable contact piece is not rubbed or subjected to excessive external force, it is not worn out, has less fatigue, and has good durability.

[Brief explanation of the drawing]

The drawings show an embodiment of the switch according to the present invention,
Figure 1 is a configuration diagram of the normal off state, Figure 2,
FIG. 3 is a block diagram of the operating state, and FIG. 4 is a block diagram of another embodiment. 1 is a switch base, 2 is a base body, 3 is a fixed contact piece, 4 is a movable contact piece, 5 is an auxiliary spring, and 5a is a first
, 5b is a second bent portion, 6 is a separator, 7 is a driver, 7a is a knob, 7b is a flange, and 8 is a long hole.

Claims (1)

[Scope of utility model registration request] A fixed contact having a contact point at the tip, a movable contact piece having a contact point opposite to the contact point of the fixed contact piece in the middle part and arranged in parallel with the fixed contact piece, and an auxiliary spring arranged in parallel with the movable contact piece. , a separator attached to the tip of the movable contact piece, the tip of which is slidably in contact with the inner surface of the auxiliary spring, and a pressing portion that is in contact with the outer surface of the auxiliary spring and is movable through the auxiliary spring and the separator. The auxiliary spring includes a driving body that presses the contact piece and is movable in the pressing direction and in a direction perpendicular to the pressing direction, and the auxiliary spring has a first bent part in which the tip of the separator fits into the intermediate part, and a tip part. has a second bent part bent in the opposite direction to the first bent part, and the sliding range of the driving body is changed from the original position where the pressing part enters the second bent part to the first bent part. A switch characterized in that it extends to a position slightly beyond the bending part of the switch.