JP2000215773A - Switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small size switch capable of switching by an electric signal from the outside and by a manual operation without receiving the influence of an unnecessary force of a spring body or the like, in a switch loaded on various kinds of electronic apparatuses, for being used mainly for make and break of a power supply or the like by a remote control operation. SOLUTION: A solenoid 22 having a bobbin 25 on which at least a coil is wound and a moving piece 27 supported rockably, and a switch contact comprising a self reset type first moving contact 30 and a first fixed contact 31, are arranged in a switch case 21, and a control lever 32, energized to the outside by a coil spring 34, for making the moving piece 27 operate rockingly by a pressing operation, is arranged projectingly to the outside. Hereby, a small size switch, capable of switching by an electric signal from the outside and by a manual operation without receiving the influence of an unnecessary force, can be realized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch mounted on various electronic devices and used mainly for opening / closing a power supply by a remote control operation.

[0002]

2. Description of the Related Art A switch disclosed in Japanese Utility Model Laid-Open Publication No. 58-103450 is known as a conventional switch used for this purpose, which is opened and closed by an external electric signal and manual operation. .

As shown in a side sectional view of FIG. 24 and an explanatory view of a lock portion which is an essential part of FIG. 25, one side of the inner bottom surface of the switch case 1 having an upper surface opening made of insulating resin is shown in FIG. Are provided with two fixed terminals 2 and 3 and a common terminal 4 therebetween. A movable contact piece 5 is supported on the common terminal 4 so as to be swingable, and is slidable linearly on the switch case 1. A pin 9 pressed by a spring 8 housed in a recess 7 on the lower surface of the guided sliding body 6 is in pressure contact with the upper surface of the movable contact piece 5.

[0004] A return coil spring 10 is mounted on the outer periphery of an operating portion 6A which is provided integrally with the end of the sliding body 6 and protrudes outward from the switch case 1, and is mounted on the upper surface of the sliding body 6. Heart-shaped cam groove 11 provided
The other end of the stopper pin 12 whose one end is pressed and urged by the coil spring 10 is fitted into the arm, and a connecting arm 6B is provided at the other end of the sliding body 6.

On the other hand, a solenoid 15 having a movable core 13 incorporated in the center and an electromagnetic coil 14 wound around the outer periphery is incorporated in a portion of the switch case 1 opposite to the fixed terminal 3, and the front end of the movable iron 13 is The sliding body 6 is connected to a connecting arm 6B at the rear end.

Further, a battery 16 is mounted on the end of the switch case 1 opposite to the fixed terminal 3, and a cover 17 is placed on the upper surface to cover the opening on the upper surface of the switch case 1.

Note that this battery 16 is not necessarily
It is not necessary to dispose the switch integrally in the switch case 1 as shown in FIG.

When a current flows from the battery 16 to the electromagnetic coil 14 of the solenoid 15 in such a configuration, a magnetic field is formed around the electromagnetic coil 14 to pull the movable iron core 13 in the direction of arrow F1 and also connect the sliding member 6. The coil spring 1 is pulled through the arm 6B in the direction of arrow F1.
When the pin 9 moves beyond the portion supported by the common terminal 4 of the movable contact 5, the movable contact 5 swings away from the fixed terminal 2 and contacts the fixed terminal 3. Then, when the energization of the electromagnetic coil 14 is stopped, as shown in FIG. 25, the stopper pin 12 enters the locking portion 11A of the heart-shaped cam groove 11 to lock the sliding body 6.

Further, from this state, the electromagnetic coil 14
When a current is passed from the battery 16 to the movable core 13, the movable iron core 13 is pulled again in the direction of the arrow F <b> 1, the stopper pin 12 comes out of the locking portion 11 </ b> A of the heart-shaped cam groove 11, and when the power supply to the electromagnetic coil 14 is stopped, The sliding body 6 is slid and returned in the direction opposite to the direction of the arrow F1 by the elastic force of the coil spring 10 to return to the original non-locked state shown in FIG.

At this time, the movable contact piece 5 swings and the fixed terminal 3
And comes into contact with the fixed terminal 2.

The switch can also be opened and closed by manual operation. In the state shown in FIG. 24, when the operation section 6A is pressed from the outside in the direction of arrow F2, the sliding body 6 moves, and the movable iron core moves accordingly. 13 also moves by being pushed in the direction of arrow F1 via the connecting arm 6B, and when the pin 9 exceeds the portion supported by the common terminal 4 of the movable contact piece 5, the movable contact piece 5 swings. The stopper pin 12 comes into contact with the fixed terminal 3, and the stopper pin 12 enters the locking portion 11 </ b> A of the heart-shaped cam groove 11 to lock the sliding body 6.

Further, from this state, the operation unit 6A is moved to the direction indicated by the arrow F.
When the pressing operation is performed in the direction 2, the stopper pin 12 comes out of the locking portion 11A of the heart-shaped cam groove 11, and when the pressing operation of the operating portion 6A is stopped in this state, the coil spring 1
The sliding body 6 returns to the original non-locked state shown in FIG. 24 by the elastic force of 0, and returns to sliding in the direction opposite to the direction of the arrow F2.

As described above, the present switch is provided with the solenoid 1
5 by repeatedly passing a current through the electromagnetic coil 14 for a predetermined period of time, or by repeatedly pressing the operating portion 6A from the outside to move the sliding body 6 in the front-rear direction to switch between the locked state and the non-locked state. The movable contact piece 5 could be repeatedly brought into contact with the fixed terminal 2 and the fixed terminal 3 repeatedly.

[0014]

However, in the above-mentioned conventional switch, when a current flows from the battery 16 to the electromagnetic coil 14 of the solenoid 15 for switching, the movable iron core 13 of the solenoid 15 is connected to the connecting arm 6 of the sliding body 6.
Since it is configured to move while bending the coil spring 10 via B, the suction force of the solenoid 15 in the direction of the arrow F1 needs a larger suction force than the force for bending the coil spring 10. Since the size of the switch depends on the size of the solenoid 15, it is difficult to reduce the size of the switch.

The present invention is to solve such a conventional problem. When switching by an electric signal from the outside, the present invention has an extra force to bend a spring body such as a coil spring which is unnecessary for opening and closing the contact. It is an object of the present invention to provide a small-sized switch capable of switching by an external electric signal and manual operation without requiring force.

[0016]

According to the present invention, there is provided a switch comprising a solenoid having at least a bobbin on which a coil is wound and a movable piece which is swingably supported on an inner bottom surface of a switch case. And a first switch contact, which is composed of a self-restoring type elastic movable contact and a fixed contact and operates by swinging the movable piece, is urged outward by a spring body, and swings the movable piece by pressing. The operation lever to be operated is disposed so as to protrude outward from the switch case.

With this structure, the switching can be performed with a simple structure without the need for an extra force such as bending a spring body for biasing the operation lever when switching by an external electric signal. In addition, a small switch that can be switched by manual operation can be realized.

[0018]

DETAILED DESCRIPTION OF THE INVENTION According to the first aspect of the present invention, a bobbin on which at least a coil is wound and which is made of an insulating resin and is disposed on an inner bottom surface of a switch case having an upper surface opening is swingably supported. A solenoid having a movable piece made of a magnetic material, and a first switch contact including a self-restoring elastic movable contact and a fixed contact disposed in the switch case so as to operate in accordance with the swinging operation of the movable piece. An operating portion projecting outward from the switch case, an insulating operating lever having a projection for swinging the movable piece when the operating portion is pressed, and an upper portion of the operating lever. A cover that covers the upper opening of the switch case, and is disposed between the operation lever and the switch case or the cover so as to urge the operation lever outward. When switching by inputting an external electric signal, an external electric signal is supplied to the coil wound on the bobbin of the solenoid to switch around the coil. A spring body that forms a magnetic field, swings the movable piece by the magnetic force of the magnetic field, and connects the self-recoverable movable contact to the fixed contact, and urges the extra force, that is, the operation lever outward. Switching can be performed without being affected by the urging force, etc., so that a small-sized switch using a solenoid with a small external shape can be realized easily and at low cost. Since the connection speed can be switched at a constant high speed, there is an effect that the life of the contact portion can be extended.

According to a second aspect of the present invention, in addition to the first switch contact comprising an elastic movable contact and a fixed contact disposed in the switch case, the self-operating member which is operated by being pressed by the operation lever is provided. A second switch contact consisting of a return type elastic movable contact and a fixed contact is arranged. This second switch contact operates only when the operation lever is pressed, and does not operate when an electric signal is input to the coil of the solenoid. Therefore, by detecting the connection state of the second switch contact, it is possible to easily detect whether the first switch contact has been operated by pressing the operation lever from outside or has been operated by input of an electric signal. It has the action of:

According to a third aspect of the present invention, in the second aspect of the present invention, the first switch contact is operated after the second switch contact is operated by being pressed by the operating lever, and is manually operated. Since the first and second switch contacts can be switched at different timings by pressing the lever, the state of the different circuits can be switched with a time difference.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the solenoid includes a yoke in which a sidewall is connected to a bottom having a through hole, and a bottom surface of the yoke. A bobbin on which a coil is wound around a tubular portion and a fixed core inserted through a through hole in the bottom surface of the yoke and a hole in the tubular portion of the bobbin to hold the yoke and the bobbin; It is composed of a movable piece made of a magnetic material that is swingably supported by a support portion provided on the side wall portion of the yoke, and can be transported and supplied in a completed state in which the solenoid is assembled, so that the switch assembly can be performed. In addition to the fact that the fixed iron core is arranged at the center of the coil, the magnetic field around the coil formed when the solenoid is energized is stabilized, and the stable movable member swings, that is, stable switching. Such an action is obtained which comprises a sex.

According to a fifth aspect of the present invention, in the first aspect of the present invention, a driving body made of an insulating resin is disposed between the movable piece and the first switch contact. With this drive, the movable piece and the first switch contact can be reliably electrically separated from each other, so that a switch capable of handling a large current can be realized.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the movable piece of the solenoid, which is swingably supported, is held by a holding plate. In addition, the movable piece can be reliably held at a predetermined position by the holding plate, and the displacement of the movable piece at the time of swinging can be reduced, so that an action having more stable switching characteristics can be obtained.

According to a seventh aspect of the present invention, in the invention according to any one of the first to sixth aspects, a fast-moving spring member having an elastic arm is attached to the movable piece, and the elastic arm is operated. The movable piece is rocked by using the spring force of the elastic arm that is depressed by the protrusion of the lever, and even when the operation lever is manually pressed, regardless of the operation speed. Since the first switch contact can be switched at a constant high speed, that is, a fast-moving operation with a simple structure, the first switch contact has an effect of extending the life of the contact portion of the first switch contact.

According to an eighth aspect of the present invention, in the first aspect of the present invention, an elastic body is disposed at a position where the movable piece is in contact with another member. This has the effect of reducing the impact of the impact on the yoke, the fixed iron core, the bobbin, the first switch contact, etc., which collide with the movable piece during the operation of the piece, thereby reducing the noise generated.

According to a ninth aspect of the present invention, in the invention according to any one of the first to eighth aspects, at least one of the elastic movable contact or the fixed contact of the first switch contact and the second switch contact is connected to the switch case. It has a fixed elastic metal plate arm shape, is provided with a U-shaped slit or notch leaving its free end side, and a contact portion is provided in a tongue piece formed in the center, and By doing so, it is possible to increase the amount of wiping at the contact point between the elastic movable contact of the switch contact and the fixed contact,
The switching characteristics can be easily improved, and a switch having excellent reliability can be obtained.

According to a tenth aspect of the present invention, in the invention of any one of the first to ninth aspects, the solenoid is fixed to the switch case by press-fitting, caulking, or insert molding. It has the effect that it can be securely mounted at a predetermined position.

The invention according to claim 11 is the invention according to claims 1 to 10
In the invention according to any one of the above, the yoke, which is a constituent member of the solenoid, and the fixed iron core are integrally formed, and the loss of a magnetic field generated when the coil of the solenoid is energized can be reduced, further stabilizing It has the effect of realizing a small-sized switch having a small number of parts having the switching characteristics described above and easy to assemble.

The twelfth aspect of the present invention provides the first to eleventh aspects.
The invention according to any one of the above, further comprising a switch that has a lock mechanism of the operation lever, and can maintain the state of the switch contact that is brought into and out of contact by the pressing operation of the operation lever mechanically and reliably. It has the effect of being obtained.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIGS.

(Embodiment 1) FIG. 1 is a side sectional view of a switch according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a main part of a switch before winding. FIG. 4 is a top view of a switch case as an essential part of the bobbin. In FIG. 4, reference numeral 21 denotes a box-shaped switch case having an upper surface opening made of insulating resin, and one end of an inner bottom surface of the switch case 21. The solenoid 22 is press-fitted into the holding groove 21A provided at the bottom.

The solenoid 22 has a bottom surface 2 having a through hole 23A as shown by a broken line in the exploded perspective view of FIG.
A bobbin 25 in which a coil led out via terminals 24A and 24B is wound around a cylindrical portion 25A (see FIG. 3) is placed on the bottom surface 23B of the yoke 23 in which the 3B and the side wall 23C are integrally formed. And the through hole 23 of the yoke 23
A and a fixed iron core 26 are inserted into a hole 25B in the cylindrical portion 25A of the bobbin 25A and the bobbin 25, and the lower end thereof is caulked to hold the yoke 23 and the bobbin 25.

The coil wound around the bobbin 25 is
The yoke 23 and the bobbin 25 are electrically insulated from each other.

A movable piece 27 made of a magnetic material, which is formed in a substantially L-shape in side view, is swingably engaged with and supported by a concave support portion 23D provided on the side wall portion 23C of the yoke 23. The yoke 23, the bobbin 25, the fixed iron core 26, and the movable piece 27 constitute the solenoid 22.

The other end of the switch case 21 has an arm-shaped contact stud 2 as a first switch contact.
The first movable contact 30 and the first fixed contact 31 made of a self-restoring resilient conductive metal holding the terminals 8 and 29 hold the terminals of the switch case 21 such that the distance between the contact studs 28 and 29 is maintained at a predetermined distance. The holding holes 21B and 21C (see the top view of the switch case in FIG. 4) are respectively buried, and the lower end 27A of the movable piece 27 of the solenoid 22 is in contact with the first movable contact 30.

Reference numeral 32 denotes an operation lever made of an insulating resin housed in the recess of the switch case 21 so as to be movable back and forth.
2A, and a projection 32C for pressing the movable piece 27 on the lower surface of the top surface 32B located above the solenoid 22 and the first switch contact.

A cover -3 is provided so as to cover the opening of the upper surface of the switch case 21 from above the operation lever 32.
3 is locked by the claw of the switch case 21 and
The convex portion 21D provided on the front wall of the switch case 21 and the convex portion 3 in the groove provided behind the operation portion 32A of the operation lever 32.
The coil spring 34 as a spring body is positioned and held by 2D, and the operation lever 32 is urged forward by the coil spring 34.

Next, the operation of the switch having the above configuration will be described.

First, the operation when switching by inputting a predetermined electric signal from the outside to the coil of the solenoid 22 will be described. First, the first movable contact 30 which is the first switch contact will be described.
When a predetermined voltage is applied to the terminals 24A and 24B to energize the coil of the solenoid 22 in the state of FIG. 1 in which the space between the contact stud 28 of the first fixed contact 31 and the contact stud 28 of the first fixed contact 31 is open, the periphery of the coil is A magnetic field is formed on the upper surface 27B of the movable piece 27, which is engaged and supported by the support portion 23D of the yoke 23, by the electromagnetic force generated by the magnetic field. Numeral 27 oscillates with the support portion 23D as a fulcrum and is attracted to the fixed iron core 26.

At this time, the lower end 27A of the movable piece 27 in contact with the first movable contact 30 presses the first movable contact 30 to incline in the direction of the first fixed contact 31, and the first movable contact 30
The contact stud 28 of the first fixed contact 31 and the contact stud 28 of the first fixed contact 31, that is, the first switch contact are connected (see the side sectional view of FIG. 5).

When the application of voltage to the terminals 24A and 24B is stopped, the magnetic field, that is, the electromagnetic force for attracting the upper flat portion 27B of the movable piece 27 disappears, and the lower end 27A of the movable piece 27 becomes a self-restoring elasticity. First movable contact 3 having
It is pushed back by the restoring force of 0 and swings again, and FIG.
The contact stud 28 and the contact stud 29 shown in FIG.

As described above, when a predetermined electric signal from the outside is input to the coil of the solenoid 22 for switching, the movable piece 27 is only swung by the electromagnetic force to switch between the contact studs 28 and 29. The small solenoid 22, that is, the coil of the bobbin 25, does not require an extra force such as bending an unnecessary coil spring 34 to open and close the first switch contact during the operation. A small switch having a small number of turns and a large size and a small diameter of the fixed iron core 26 can be used, and a small switch having stable and reliable switching characteristics can be easily realized.

Further, at the time of this switching, since the connection speed of the first switch contact can be switched at a constant high speed, that is, a rapid operation, the life of the contact portion, that is, the contact tacks 28 and 29 can be extended. It can also be planned.

Next, a description will be given of the operation when switching is performed by manually pressing the operation portion 32A of the operation lever 32. The contact stud 28 of the first movable contact 30 which is the first switch contact and the first fixed contact 31 When the operation portion 32A is pressed from the outside in the state of FIG. 1 in which the space between the contact studs 29 is open, the operation lever 32 moves rearward while bending the coil spring 34. At this time, the operation lever 32 The protrusion 32C provided on the lower surface of the top surface portion 32B of the movable member 27 abuts and slides on the upper surface of the upper flat portion 27B of the movable piece 27, and swings the movable piece 27 with the support portion 23D of the yoke 23 as a fulcrum. 27 presses the first movable contact 30 to incline, and connects the contact stud 28 of the first movable contact 30 and the contact stud 29 of the first fixed contact 31 to each other. I will show you First switch contact is closed in.

From this state, the operation unit 3 of the operation lever 32
When the pressing operation of 2 </ b> A is stopped, the operating lever 32 is pushed back to the original position by the restoring force of the coil spring 34 bent by the movement of the operating lever 32, and the protrusion 32 </ b> C of the operating lever 32 moves above the movable piece 27. When moving away from the plane portion 27B, the lower end portion 27A of the movable piece 27 is pressed by the restoring force of the first movable contact 30 having self-restoring elasticity, and swings again with the support portion 23D as a fulcrum, thereby performing the swing operation shown in FIG. Return to the state.

As described above, the switch according to the present embodiment is used for inputting an external electric signal or operating the control lever 32.
A small switch capable of switching the first switch contact by the pressing operation of can be easily realized.

The above description has been made with reference to an example in which the first movable contact 30 and the first fixed contact 31 are provided with the contact studs 28 and 29 as the first switch contacts.
The first movable contact 30 and the first fixed contact 31 may be provided with protrusions to directly contact and separate from each other. Further, the switch case may be formed in a flat plate shape, and may be covered by a box-shaped cover having an open bottom. Needless to say, the spring for urging the operation lever 32 may be disposed between the operation lever and the cover.

The method of mounting the solenoid 22 on the switch case 21 may be, other than press fitting, a method of caulking and fixing a yoke or the like to the switch case, fixing by insert molding, or fixing with screws or adhesive. The good thing is, of course.

Further, the same effect can be obtained by providing a supporting portion on a bobbin around which a coil is wound so as to engage and support a movable piece.

(Embodiment 2) The switch according to the second embodiment of the present invention is different from the switch described in the first embodiment in the structure of the solenoid. As shown in the exploded perspective view of the solenoid and the completed perspective view of FIG. 8, a press plate 36 formed by bending a thin metal plate is fixed to the side wall 35A of the yoke 35 by caulking, and a portion corresponding to the press plate 36 is fixed. The movable piece 37 provided with the escape groove 37A is swingably sandwiched between the holding plate 36 and the supporting portion 35B formed by the upper end surface of the side wall 35A of the yoke 35.

The rest of the configuration of the switch according to the present embodiment is the same as that according to the first embodiment, and a description thereof will be omitted.

Since the operation is the same, the description is omitted. However, since the movable piece 37 is swingably sandwiched between the holding plate 36 and the support portion 35B,
The movable piece 37 can be reliably held at a predetermined position,
It is possible to reduce the displacement of the movable piece 37, which is likely to occur when the movable piece 37 swings, and to easily realize a stable switching characteristic against external vibration.

In addition to the attachment of the holding plate 36 to the yoke 35, the same effect can of course be obtained by attaching the holding plate to a bobbin and sandwiching the movable piece between the holding plate and the support portion of the yoke. is there.

(Third Embodiment) A switch according to a third embodiment of the present invention is different from the switch described in the first embodiment in that the first switch contact is quickly moved even when a manual operation is performed. As shown in the side sectional view of the switch of FIG. 9 and the exploded perspective view of FIG. 10, the configuration is such that a central flat portion 40A is provided above the movable piece 38 of the solenoid 39. A fast-moving spring member 40 having arm portions 40B and 40C integrally formed at both ends is attached.
Projections 40D, 40 at the tips of the arms 40B, 40C.
The difference is that two substantially right-angled triangular protrusions 41B and 41C provided on the lower surface of the top surface 41A of the operation lever 41 are in contact with E, and the configuration of the other parts is the same as that of the first embodiment.
The description is omitted because it is the same as the switch of FIG.

Next, the operation of the switch having the above configuration will be described. The operation of switching the first switch contact by applying a predetermined electric signal from the outside to the coil of the solenoid 39 is also the same as that of the first embodiment. Therefore, the description is omitted.

When the space between the contact stud 28 of the first movable contact 30 and the contact stud 29 of the first fixed contact 31 as the first switch contact shown in FIG. 9 is open, the operation lever 41 protrudes forward. When the operation portion 41D is pressed, the operation lever 41 moves backward while bending the coil spring 34, and the oblique sides of the substantially right-angled triangular protrusions 41B and 41C of the operation lever 41 are connected to the arms of the rapid-moving spring member 40. The protruding portions 40D and 40E at the tips of the portions 40B and 40C are pressed to flex the arm portions 40B and 40C.

At this time, the arm portions 40B and 40C are bent until the protruding portions 40D and 40E are located rearward and at a lower position with respect to the swing fulcrum of the movable piece 38, and the amount of bending is maximum. When the value is reached, the protrusions 41B, 4B
1C is disengaged from the projections 40D and 40E and moves onto the arms 40B and 40C. At this time, the fast-moving spring member 40 and the movable piece 38, which are integrally fixed, move in the direction of arrow A shown in FIG. The lower end portion 38A of the movable piece 38 presses and tilts the first movable contact 30 to connect between the contact stud 28 and the contact stud 29 (see a side sectional view in FIG. 11). .

Here, when the pressing operation of the operating portion 41D is stopped, the operating lever 41 returns to the original position by the restoring force of the bent coil spring 34. At this time, the top surface 41A of the operating lever 41 is The protruding portions 41B and 41C also return to the original positions while pressing the protruding portions 40D and 40E at the distal ends of the arms 40B and 40C of the fast-moving spring member 40, and the movable piece 38 is pressed by the restoring force of the first movable contact 30. It swings again and returns to the open state of the switch shown in FIG.

As described above, the switch according to the present embodiment has a simple structure, and is manually operated by the operating section 41 of the operating lever 41.
Even when D is operated, regardless of the operation speed, the arm portions 40B, 40B,
The first switch contact can be switched by using the spring force of 40C to move the movable piece 38 at a constant high speed, that is, at a high speed, so that the life of the contact portion can be extended.

(Embodiment 4) A switch according to a fourth embodiment of the present invention differs from the switch described in the first embodiment in a side sectional view of the switch of FIG.
As shown in the exploded perspective view of FIG. 3, a self-returning elastic conductive member, which is a second switch contact that operates in conjunction with the pressing operation of the operating lever 43, is provided at a position opposite to the operating portion side of the switch case 42. A point where the second movable contact 44 and the second fixed contact 45 made of metal are buried, and a large current can be applied between the first movable contact 47 and the first fixed contact 31 which are the first switch contacts. , Movable piece 46 and first movable contact 47
A different point is that an insulative driving body 48 is incorporated between them, and the two are electrically insulated from each other. The configuration of the other parts is the same as that according to the first embodiment, and the description is omitted.

The operation of switching the switch according to the present embodiment by applying a predetermined electric signal from the outside to the solenoid is substantially the same as that described in the first embodiment, so that the detailed description will be given. Omit,
As described above, since the driving body 48 is interposed between the movable piece 46 and the first movable contact 47, the driving body 48 and the first movable contact 47 interlock when the movable piece 46 swings. The contact studs 28 and 29 move toward and away from each other.

In this operation, as shown in the side sectional view of FIG. 14, since the operation lever 43 does not move, the second movable contact 44, which is the second switch contact disposed at the rear of the switch case 42, The second fixed contact 45 maintains the open state.

Next, the operation when the operating portion 43A of the operating lever 43 is pressed will be described.
The operation lever 43 is pressed by the coil spring 34
Is moved backward while flexing, and the top surface 43 of the operation lever 43 is moved.
B is provided on the upper flat portion 46 of the movable piece 46.
The movable piece 46 is swung by sliding on the upper surface of A, and the first movable contact 47 is tilted via the driving body 48 in accordance with this, thereby connecting the contact studs 28 and 29, that is, the first switch contact. .

At the same time, the pressing portion 43D provided on the rear wall of the operation lever 43 comes into contact with the second movable contact 44 of the second switch contact, and moves the second movable contact 44 to the second fixed contact 45 side. Tilted to connect the second movable contact 44 and the second fixed contact 45, that is, the second switch contact (FIG. 1).
5).

When the pressing operation on the operating lever 43 is stopped, the operating lever 43 is restored to its original state by the restoring force of the coil spring 34 and the restoring force of the first and second movable contacts 47 and 44 having self-restoring elasticity. The position is returned to the position shown in FIG. 12 in which the first and second switch contacts are open.

As described above, when the voltage is applied to the solenoid 22 and the first switch contact is connected, the second switch contact is open, while the first switch contact is connected by an external operation. In this case, since the second switch contact is in the closed state, the connection of the first switch contact is monitored by monitoring the contact / separation state of the second movable contact 44 and the second fixed contact 45 which are the second switch contact. It is possible to easily detect whether the solenoid 22 is connected by applying a voltage or is connected by an external pressing operation on the operation lever 43.

Further, by forming the projection 43C provided on the top surface 43B of the operation lever 43 so as to be shifted back and forth, it is possible to provide a time difference in the connection timing of the first and second switch contacts. It is also possible to operate different circuits at different timings.

In a switch formed by shifting the projection 43C forward, that is, toward the operation section 43A,
A state where the second switch contact is connected is detected by a pressing operation of the operation lever 43 from outside, and based on this information,
A method of applying a predetermined voltage to the solenoid 22 to swing the movable piece 46 and immediately connect the first switch contact can also be used.

(Fifth Embodiment) A switch according to a fifth embodiment of the present invention is different from the switch described in the fourth embodiment in a side sectional view of the switch of FIG.
As shown in the exploded perspective view of FIG. 7, a heart-shaped cam groove 49B is provided above the operation portion 49A of the operation lever 49, and has a lock mechanism constituted by a stopper pin 50 that moves in the cam groove 49B. And the point that the contact studs 53 and 54 are swaged and held on the second movable contact 51 and the second fixed contact 52 which are the second switch contacts. The description is omitted because it is the same as that of the fourth embodiment.

In the unlocked state of the switch shown in FIG. 16, a predetermined electric signal is externally applied to the solenoid 22 to apply the first movable contact 4 as the first switch contact.
The same applies to the operation for bringing the 7 and the first fixed contact 31 into and out of contact with each other, and thus the description thereof is omitted.

Next, the operation when the operating portion 49A of the operating lever 49 is manually pressed will be described. The operating lever 49 moves backward while bending the coil spring 34 with the pressing of the operating portion 49A. The movable piece 46 is swung by the projection 49C of the operation lever 49 to provide a space between the first movable contact 47 and the first fixed contact 31, that is, between the contact tacks 28 and 29, and on the rear wall of the operation lever 49. Pressing part 4
The connection between the second movable contact 51 and the second fixed contact 52, that is, the contact studs 53 and 54 by 9D is the same as that of the fourth embodiment, but at this time, the holding claws 55A of the cover 55 And the other end of the stopper pin 50, one end of which is inserted into the holding portion 56A of the switch case 56 and urged by the coil spring 34, is relatively moved forward in the cam groove 49B of the operation lever 49. It moves (see the side sectional view of FIG. 18).

When the pressing operation on the operation lever 49 is stopped, as shown in FIG. 19, the operation lever 49 is slightly pushed back by the restoring force of the coil spring 34 and the other end of the stopper pin 50 has a heart shape. Cam groove 49
The operation lever 49 is locked in a predetermined position by entering the locking portion 49E of B.

At this time, the projection 49C of the operation lever 49 is separated from the upper flat portion 46A of the movable piece 46,
Is pushed back by the restoring force of the first movable contact 31 and returns to a state where the contact studs 28 and 29 are separated.

Even in the locked state of the switch shown in FIG. 19, a predetermined electric signal is externally supplied to the solenoid 22.
To move the first movable contact 47 and the first fixed contact 31 toward and away from each other.

Next, when the operating portion 49A of the operating lever 49 is manually pressed again from the locked state, the other end of the stopper pin 50 is disengaged from the locking portion 49E of the cam groove 49B. The non-locked state shown in FIG.

As described above, the switch according to the present embodiment is provided with the lock mechanism of the operation lever 49,
It is possible to reliably maintain mechanically in a state where the second movable contact 51, which is the second switch contact, and the second fixed contact 52 are connected, and to apply a predetermined electric signal to the solenoid 22 from outside. Thus, the first movable contact 47, which is the first switch contact, and the first fixed contact 31 can be appropriately opened and closed.

It is needless to say that both the first and second switch contacts may be kept closed when the operation lever 49 is locked. Although an example has been described in which the second movable contact 51 and the second fixed contact 52, which are the contacts, are arranged on the rear portion of the switch, it is of course possible to arrange them on the side of the first switch contact. It is.

(Embodiment 6) The switch according to the sixth embodiment of the present invention is different from that described in the first embodiment in that the switch is quieter as shown in the side sectional view of the switch in FIG. The elastic member 5 is provided at a position where it comes into contact with another member when the movable piece 57 swings.
The configuration and operation other than the point that the camera 8 is mounted are the same as those according to the first embodiment, and a description thereof will be omitted.

With the above configuration, the movable piece 57
The impact with other members, such as the yoke 23, the fixed iron core 26, the bobbin 25, etc., which comes in contact with the rocker when it swings, can be absorbed and relieved by the elasticity of the rubber 58. .

It should be noted that the same effect can be obtained by mounting an elastic member other than the rubber 58, such as an elastomer or a resin member, or a leaf spring or a coil spring.

(Embodiment 7) A switch according to a seventh embodiment of the present invention is different from the switch described in the first embodiment in that a switch contact as shown in a perspective view of FIG. The shape of the contact is different, and the first movable contact 59 and the first fixed contact 60 which are the first switch contacts shown in FIG.
Slits 59A and 60A are provided, and contact studs 28 and 29 are fixed to tongue pieces 59B and 60B formed at the center.

With the above configuration, the amount of wiping between the contact studs 28 and 29 of the first movable contact 59 and the first fixed contact 60 can be easily increased, thereby increasing the contact reliability and stabilizing the characteristics. A small switch can be easily realized.

It should be noted that a tongue may be provided by making a cut in place of the slits 59A and 60A, and this configuration may be applied to the second switch contact described in the fourth and fifth embodiments. Needless to say, it's good.

(Eighth Embodiment) A switch according to an eighth embodiment of the present invention is different from that described in the first embodiment in that a perspective view and a diagram of a solenoid which is a main part of the switch shown in FIG. As shown in the same exploded perspective view of FIG. 23, the structure of the solenoid is different, and the same as the first embodiment except that a yoke 63 with a fixed iron core integrally forming a yoke 61 and a fixed iron core 62 is used. Therefore, the description is omitted.

The yoke 63 with the fixed core is formed by bending a single metal plate. The yoke 63 with the fixed core is inserted into the hole 6 of the cylindrical portion (not shown).
4A, a bobbin 64 formed in a square shape is inserted from above, and both ends 62A of the fixed iron core 62 are caulked and fixed as shown in FIG.
Thereafter, the movable piece 65 is incorporated into the support portion 61A of the yoke 61 to form the solenoid 66.

With the above structure, the yoke 63 with the fixed core is fixed to the switch case 21 by insert molding, and other members are assembled so as to be stacked on the yoke 63 with the fixed core from above in the next switch assembly process. Since the solenoid 66 can be assembled by using the above, automatic assembly of the switch including the solenoid can be easily realized, and the assembling efficiency of the switch can be improved.

Further, the solenoid 66 is connected to the yoke 6
1 and yoke 63 with fixed core integrally formed with fixed core 62
, The number of parts of the solenoid 66 can be reduced, the loss of the magnetic field can be reduced, and a small one that generates a strong electromagnetic force when the coil is energized can be easily realized. The size of the switch can be easily and inexpensively reduced.

[0088]

As described above, according to the present invention, since the first switch contact is operated in conjunction with the swing operation of the movable piece swingably supported by the solenoid, an external electric signal is provided. In the case of the switching by the above, the switching can be performed without being affected by the extra force of the spring body or the like urging the operation lever forward, and a small-sized switch that can manually press the operation lever can be realized. Effects can be obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a switch according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a perspective view of a bobbin before winding a coil, which is a main part of the same.

FIG. 4 is a top view of a switch case which is a main part of the same.

FIG. 5 is a side sectional view showing a state in which a coil of the solenoid is energized.

FIG. 6 is a side sectional view showing a state where the operation lever is pressed.

FIG. 7 is an exploded perspective view of a solenoid as a main part of a switch according to a second embodiment of the present invention.

FIG. 8 is a completed perspective view of the same.

FIG. 9 is a side sectional view of a switch according to a third embodiment of the present invention.

FIG. 10 is an exploded perspective view of the same.

FIG. 11 is a side sectional view showing a state where the operation lever is pressed.

FIG. 12 is a side sectional view of a switch according to a fourth embodiment of the present invention.

FIG. 13 is an exploded perspective view of the same.

FIG. 14 is a side sectional view showing a state in which a coil of the solenoid is energized.

FIG. 15 is a side sectional view showing a state where the operation lever is pressed.

FIG. 16 is a side sectional view of a switch according to a fifth embodiment of the present invention in a non-locked state.

FIG. 17 is an exploded perspective view of the same.

FIG. 18 is a side sectional view showing a state where the operation lever is pressed to a full stroke.

FIG. 19 is a side sectional view of the non-locked state.

FIG. 20 is a side sectional view of a switch according to a sixth embodiment of the present invention.

FIG. 21 is a perspective view of a first movable contact and a first fixed contact which are main parts of a switch according to a seventh embodiment of the present invention.

FIG. 22 is a perspective view of a solenoid as a main part of a switch according to an eighth embodiment of the present invention.

FIG. 23 is an exploded perspective view of the same.

FIG. 24 is a side sectional view of a conventional switch.

FIG. 25 is an explanatory diagram of a lock portion, which is the main portion.

[Explanation of symbols]

 21, 42, 56 Switch case 21A Holding groove 21B, 21C Terminal holding hole 21D, 32D Convex part 22, 39, 66 Solenoid 23, 35, 61 Yoke 23A Through hole 23B Bottom part 23C, 35A Side wall part 23D, 35B, 61A Support Portion 24A, 24B Terminal 25, 64 Bobbin 25A Cylindrical portion 25B, 64A Hole 26, 62 Fixed iron core 27, 37, 38, 46, 57, 65 Movable piece 27A Lower end portion 27B, 46A Upper flat portion 28, 29, 53, 54 Contact tack 30, 47, 59 First movable contact 31, 60 First fixed contact 32, 41, 43, 49 Operating lever 32A, 41D, 43A, 49A Operating part 32B, 41A, 43B Top part 32C, 41B, 41C, 43C, 49C Projecting portions 33, 55 Cover 34 Coil spring 36 Holding plate 37 Relief groove 40 Fast-moving spring member 40A Central flat part 40B, 40C Arm part 40D, 40E Projection part 43D, 49D Pressing part 44, 51 Second movable contact 45, 52 Second fixed contact 48 Driver 49B Cam groove 49E Locking part Reference Signs List 50 Stopper pin 55A Holding claw 56A Holding portion 58 Rubber 59A, 60A Slit 59B, 60B Tongue piece 62A Both end portions 63 Yoke with fixed iron core

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yusho Nakase 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Koji Tamano 1006 Kazuma Kadoma, Osaka Prefecture F-term (reference) 5G006 AA01 AB06 AC07 BA01 BA02 BB01 BB02 BC02 CD05 CD07 DD06 EA01 EA03 GB03

Claims (12)

[Claims] 1. A solenoid having a bobbin on which at least a coil is wound and disposed on an inner bottom surface of a switch case which is made of an insulating resin and has an upper surface opening, and a movable member made of a magnetic material which is swingably supported; A first switch contact composed of a self-returnable elastic movable contact and a fixed contact disposed in the switch case so as to operate in accordance with the swinging operation of the one piece, and an operating portion projecting outward from the switch case. An insulating operating lever having a projection for swinging the movable piece when the operating portion is pressed, a cover including an upper portion of the operating lever, covering a top opening of the switch case, A switch constituted by a spring body disposed between the operation lever and the switch case or the cover so as to bias the operation lever outward. 2. A second switch comprising a self-restoring resilient movable contact and a fixed contact which are operated by being pressed by an operation lever, in addition to a first switch contact comprising an elastic movable contact and a fixed contact disposed in a switch case. The switch according to claim 1, further comprising a contact. 3. The switch according to claim 2, wherein the first switch contact operates after the second switch contact is operated by being pressed by the operating lever. 4. A yoke having a solenoid and a side wall connected to a bottom having a through hole, a bobbin mounted on the bottom of the yoke and having a coil wound around a cylindrical portion, and a solenoid. A fixed iron core that holds the yoke and the bobbin by being inserted through the through hole in the bottom portion and the hole in the cylindrical portion of the bobbin, and a magnetic material that is swingably supported by a support portion provided on a side wall of the yoke. The switch according to claim 1, comprising a movable piece. 5. The switch according to claim 1, wherein a driving body made of an insulating resin is disposed between the movable piece and the first switch contact. 6. The switch according to claim 1, wherein a movable piece of the solenoid that is swingably supported is held by a holding plate. 7. A fast-moving spring member having an elastic arm portion is attached to a movable piece, and the elastic arm portion is pressed by a projection of an operation lever, and is movable using the spring force of the bent elastic arm portion. The switch according to any one of claims 1 to 6, wherein the piece is configured to swing. 8. The switch according to claim 1, wherein an elastic body is disposed at a position where the movable piece contacts another member. 9. At least one of the elastic movable contact or the fixed contact of the first switch contact and the second switch contact has an arm shape made of an elastic metal plate having one end fixed to the switch case, and has a U-shape leaving its free end side. The switch according to any one of claims 1 to 8, wherein a slit or a notch is provided, and a contact portion is provided on a tongue piece formed in the center. 10. A solenoid is pressed into a switch case.
Claim 1 which was fixed by caulking or insert molding
9. The switch according to any one of 9. 11. The switch according to claim 1, wherein a yoke, which is a component of the solenoid, and a fixed iron core are integrally formed. 12. The switch according to claim 1, further comprising a lock mechanism for an operation lever.