JP2017041360A - Toggle switch detent mechanism by magnetic force - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toggle switch detent mechanism by magnetic force which can reduce settling and breakage since the magnetic force is utilized as power of the mechanism, and is free from settling and breakage since the mechanism becomes non-contact at a power generation part.SOLUTION: A toggle switch detent mechanism by magnetic force is constituted of: integrally fixed lever 3 and boss part 4; a shaft 5 which penetrates and fixed to the boss part 4; a cam constituted so that a gap is formed on a lower side outside the shaft; a rib 8 in which a projection 7 is provided on the opposite side so that the gap is similarly formed on the lower side, the upper part of which is sandwiched between the gaps of the cam 6 and the projection 7, and which has a cylinder 8A formed at the lower part; and a magnet 11 which is spatially formed at an upper part of the cylinder 8A, and adsorbed and held at the lower part by an adsorption plate 12. When the lever 3 is inclined to a counterclockwise side, the rib 8 also similarly inclines as the lever 3, the magnet 11 is located on a right side of a hole 9 of the adsorption plate 12, and when the lever 3 is oscillated in a clockwise direction, the magnet 11 is located in a left direction of the hole 9 of the adsorption plate 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a moderation mechanism of a toggle switch that is used for operation of an electric device or the like, particularly using a magnetic force.

  A toggle switch operating mechanism used for operating a conventional electric device or the like is usually a switch that uses the elasticity of a spring so that the electric device is turned on and off by the switch.

As shown in FIGS. 7A and 7B, a conventional switch moderation mechanism often has a structure in which one of two contact points 35, 36 is brought into contact with a rocker and turned on and off. In the case of this example, the rocker 25 is supported on the support plate 26 by a rod-shaped rocker fulcrum 27. The inside of the support plate 31 is configured to press a push rod 29 having a rounded tip with a coil spring 30. The push rod 29 is in contact with the contacts 35 and 36 (one is ON, the other is OFF) of two fixed terminals 33 and 34 provided on the substrate 32 (Japanese Patent Office Standard Technology Collection Small Switch A- 2-1 From a drive mechanism using a spring).
“Electronic Materials Vol.33, No.4, Industrial Research Group, p.54”

  By the way, the switch mechanism using the coil spring 30 and the push rod 29 for the rocker as described above does not operate as intended because the coil spring 30 is bent or the push rod 29 is worn, and the reaction becomes slow. The operation of electrical equipment may worsen.

  The present invention has been made in order to cope with the above-described problems. Since magnetic force is used as the power of the mechanism, it is possible to reduce settling and breakage and to be non-contact in the power generation portion. An object of the present invention is to provide a magnetic toggle switch mechanism that is free from wear and seizure.

In order to achieve the object of the present invention, the invention according to claim 1 is characterized in that a toggle switch moderation mechanism by magnetic force includes:
The lever 3 and the boss 4 fixed together;
A shaft 5 penetrating and fixed in the boss portion 4 and a cam 6 in which a gap is formed on the lower side outside the boss portion 4;
Protrusions 7 are provided on the opposite side of the boss 4 so that a gap is formed on the lower side, and ribs 8 sandwiching the upper portions of the gaps between these cams 6 and the projections 7;
A cylinder 8A is formed in the lower part of the rib 8, and a space 8B is formed in the cylinder 8A. The cylinder 8A is composed of a magnet 11 held in the space 8B and a lower attracting plate 12.
When the lever 3 is tilted counterclockwise about the shaft 5, the rib 8 is also tilted in the same manner as the lever 3, and the magnet 11 is positioned on the right side of the hole 9 of the suction plate 12,
When the lever 3 is swung clockwise, the magnet 11 is positioned to the left of the hole 9 of the suction plate 12.
All but the magnet 11 and the attracting plate 12 are non-magnetic materials.

According to a second aspect of the present invention, the toggle switch moderation mechanism using magnetic force according to the first aspect is provided, and the microswitch 1 is provided with lever switches 2A and 2B for turning the microswitch 1 on and off. It is characterized by.

According to a third aspect of the present invention, in the toggle switch moderation mechanism using magnetic force according to the first aspect, the magnet 11 is attracted and held by the suction plate 12, and the suction plate 12 is slightly larger than the magnet on both sides. Holes 9 and 9 having a diameter are formed, and in these magnets 11, the suction plate 12 is provided with slight gaps 10 and 10 between the magnets 11. is there.

According to a fourth aspect of the present invention, the toggle switch moderation mechanism by magnetic force is the toggle switch moderation mechanism by the magnetic force according to any one of claims 1 to 3, wherein the two magnets 11 are one magnet. It is what.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view showing a configuration of a toggle switch mechanism using magnetic force according to the present invention. FIG. 2 is a vertical cross-sectional view of the lower portion of the toggle switch mechanism using this magnetic force.

In the toggle switch moderation mechanism of the present invention, reference numeral 1 denotes a micro switch for turning on / off an electric device (not shown). In these drawings, 3 is a lever which is inclined to some extent, and 4 is a boss portion fixed integrally with the lever 3. The boss portion 4 is provided with cams 6A and 6B in which a gap is formed on the outer lower side, and protrusions 7 and 7 on the opposite side so that a gap is also formed on the lower side.
The upper portions of the ribs 8 are held between the cams 6A and 6B and the protrusions 7 and 7. (This rib 8 will be described later).

The micro switch 1 is provided with elastic lever switches 2A and 2B for turning the micro switch 1 on and off. These lever switches 2A and 2B are operated by the swinging of the cams 6A and 6B. Reference numeral 5 denotes an axis that penetrates and is fixed to the boss portion 4, and the lever 3 swings around the axis 5 of the boss portion 4 by a certain angle.

FIG. 2 is a side view of one side showing the configuration of the toggle switch mechanism using magnetic force of the present invention. A cylinder 8A is formed in the lower part of the rib 8, a space 8B is formed in the upper part of the cylinder 8A, and two magnets 11A and 11B are attracted and held in the lower part. Further, these magnets 11 </ b> A and 11 </ b> B are attracted to the suction plate 12. Large holes 9 and 9 having a diameter slightly larger than the magnets 11A and 11B are formed on both sides of the attracting plate 12 (see FIG. 2).
Further, in the magnets 11A and 11B between the two holes 9 and 9, the suction plate 12 is provided with slight gaps 10 and 10 between the two magnets 11A and 11B. Furthermore, a thin wall 13 partitions the magnet 11A and the magnet 11B.

The rib 8 is formed with a cylindrical portion 8A, and magnets 11A and 11B are arranged on the cylindrical portion 8A.

The structure of the toggle switch mechanism using the magnetic force of the present invention is as described above. Next, the operation of the rib 8 will be described.
FIG. 3 is a left side view of the toggle switch mechanism with magnetic force according to the present invention.
The status of the micro switch ON / OFF operation is shown.

    As described above, the protrusions 7 and 7 are provided on the opposite side of the cams 6A and 6B and the boss part 4 and sandwich a part of the rib 8, but the magnets 11A and 11B are illustrated by the lever 3 swinging. When the lever 3 is moved leftward, the lever switches 2A and 2B are turned OFF. When the lever 3 is moved rightward as shown in FIG. 5, the lever switches 2A and 2B are turned ON.

  The feature of the present invention is that the magnetic field lines of the magnets 11A and 11B are used. Explain the behavior of the magnetic field lines of the magnet

FIG. 4 shows a stopped state of the electric device with the microswitch 1 turned OFF, and FIG. 5 shows an operating state of the electric device with the microswitch 1 turned ON. In FIG. 4, when the lever 3 is tilted counterclockwise, the rib 8 is also tilted in the same manner as the lever 3, and the magnets 11 </ b> A and 11 </ b> B move to the right side of the holes 9 and 9 of the attracting plate 12 and are positioned here. To do.
Next, when the lever 3 is swung clockwise in FIG. 5, the two magnets 11 </ b> A and 11 </ b> B are positioned to the left of the two holes 9 and 9 of the suction plate attraction plate 12.
From the above operation, as shown in FIG. 5, when the lever 3 is tilted clockwise, one of the cams 6A and 6B provided on the boss 4 pushes one of the lever switches 2A and 2B to turn on the micro switch 1. To do. When the device is activated and the lever is tilted counterclockwise, the lever switches 2A and 2B return to their original positions, the micro switch 1 is turned OFF, and the device stops.
4 and 5 may be in the reverse state (ON and OFF are reversed). The counterclockwise direction and the clockwise direction are those seen from FIGS. 4 and 5 of the attached drawings.

  The positional relationship between the hole 9 of the attracting plate 12 and the magnets 11A and 11B in FIGS. 3, 4, and 5 will be described with reference to FIG.

Initially, as shown in FIG. 4, the lever 3 is inclined counterclockwise, and the magnets 11 </ b> A and 11 </ b> B are located on the right side of the hole 9 of the attracting plate 12.
In this case, the magnet 11 is sufficiently covered with the attracting plate 12, and the magnetic attractive force is stable and does not move ((B) of FIG. 6).
Next, when the lever 3 is swung clockwise from there, the magnets 11 </ b> A and 11 </ b> B move into the holes 9 of the suction plate 12. Since the hole 9 does not attract the magnet, it is attracted to the suction plate 12 around the hole 9. Since the attractive force of the magnet 11 is imbalanced, a counterclockwise reaction force is generated on the lever 3.
Further, when the lever 3 comes to the center as shown in FIG. 3, the magnets 11 </ b> A and 11 </ b> B are aligned with the hole 9 of the suction plate 12, the suction force is in an equilibrium state, and the counterclockwise reaction force is Disappear. However, since the attractive force of the magnetic force is inversely proportional to the square of the distance, even a slight movement of the magnet position immediately results in an unbalanced state of the attractive force, so it is difficult to stabilize in the state of FIG. (A)).
Then, when the lever 3 is swung clockwise from FIG. 3, the magnets 11 </ b> A and 11 </ b> B move from the center of the hole 9 of the suction plate 12 to the left side, immediately causing an imbalance of the attractive force, and clockwise with respect to the lever 3. To the stable state of FIG.
The magnets 11A and 11B are located on the left side of the hole 9 of the attracting plate 12 (FIG. 6C).

The details of the toggle switch mechanism using the magnetic force according to the present invention are as described above. With this configuration, since the spring, the push rod, the movable piece fixed terminal, and the contact are not used, the switch mechanism has no worn portion. Therefore, the lifetime of the mechanism is extended.
In addition, since the number of fine parts is small, assembly is also easy. Furthermore, with the suction plate 12 as it is, the ribs 8 can be swung by the magnetic lines of the magnets 11A and 11B, and the lever switches 2A and 2B can be turned on and off.
The lever 3 and the boss portion 4 of the magnetic force toggle switch mechanism may be integrally formed and the shaft 5 may be passed therethrough. In this case, the cams 6A and 6B and the protrusions 77 of the boss portion 4 may be welded.

The embodiment of the toggle switch moderation mechanism by the magnetic force of the present invention is as described above, but if the suction plate 12 is devised and the holes 9 and 9 are changed from the 2 position to the 3 position, more micro switches 1 are turned on. , OFF. The same is true even if the cams 6A and 6B of the boss 4 are increased.
In this embodiment, the contactless micro switch 1 is used. However, if it is replaced with a magnetic sensor, a non-contact switch can be obtained, and an increase in the number of durability can be expected.

FIG. 1 is an overall perspective view showing the configuration of a toggle switch moderation mechanism using magnetic force according to the present invention. FIG. 2 is a side view of one side showing the configuration of the toggle switch moderation mechanism using the magnetic force of the present invention. FIG. 3 is a left side view of the toggle switch moderation mechanism using magnetic force according to the present invention. FIG. 4 is a diagram illustrating a stop state of the electrical device with the microswitch 1 turned off. FIG. 5 is a diagram showing the operating state of the electrical device with the microswitch 1 turned ON. FIG. 6 is a diagram for explaining the positional relationship between the holes of the attracting plate and the magnets of FIGS. 3, 4, and 5 in an easy-to-understand manner. It is a figure of the switch mechanism known conventionally.

1 ... Micro switch 2A ... Lever switch 2B ... Lever switch 3 ... Lever 4 ... Boss 5 ... Shaft 6 ... Cam 6A ... Cam 6B ... Cam 7 ... Projection 8 ... Rib 8A ... Cylindrical 8B ... Space
9 .... Hole 10 .... Gap between magnet and suction plate 11 .... Magnet 11A ... Magnet 11B ... Magnet 12 ...... Adsorption plate 13 .... Thin wall

Claims (4)

The lever 3 and the boss 4 fixed together;
A shaft 5 penetrating and fixed in the boss portion 4 and a cam 6 in which a gap is formed on the lower side outside the boss portion 4;
Protrusions 7 are provided on the opposite side of the boss 4 so that a gap is formed on the lower side, and ribs 8 sandwiching the upper portions of the gaps between these cams 6 and the projections 7;
A cylinder 8A is formed at the lower part of the rib 8, and a space 8B is formed inside the cylinder 8A. The cylinder 11 is formed by a magnet 11 held in the space 8B and an adsorption plate 12 at the lower part. When the lever 3 is tilted counterclockwise as the center, the rib 8 is also tilted in the same manner as the lever 3, and the magnet 11 is positioned on the right side of the hole 9 of the suction plate 12,
When the lever 3 is swung clockwise, the magnet 11 is positioned on the left side of the hole 9 of the attracting plate 12.   2. The toggle switch moderation mechanism using magnetic force according to claim 1, wherein the micro switch is provided with lever switches 2A and 2B for turning the micro switch 1 on and off. The magnet 11 is attracted to the attracting plate 12, and holes 9, 9 having a diameter slightly larger than the magnet are formed on both sides of the attracting plate 12. In these magnets 11, the attracting plate 12 includes the magnet 11. 2. A slight gap 10, 10 is provided on the left and right between the magnet 11 and the magnet 11 </ b> B and the magnet 11 </ b> B is partitioned by a thin wall 13. mechanism. The toggle switch moderation mechanism using the magnetic force according to claim 1, wherein the two magnets 11 are one magnet.

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