JP2002324457A - Automatic home position resetting shuttle switch mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic home position resetting shuttle switch that can switch on once when turned to either side of left or right, and can detect to which side of left or right it is turned. SOLUTION: This automatic home position resetting shuttle switch system is equipped with a two-way detector switch 41 that switches on by tilting a lever 42 to either side of left or right and switches off by resetting the lever 42 to the home position according to tilt release, a turn body 20 having a driving piece 23 where according to one-way turn from the home position, a driving piece 23 is brought into contact with the lever 42 before the driving piece 23 tilts the lever 42 and thereby the two-way detector switch 41 is switched on, and moreover according to resetting to the home position due to reverse turn, the lever 42 is reset to the home position and thereby the two-way detector switch 41 is switched off, a left and right turn stopper that decides the maximum turn position of the turn body 20, and an elastomer 60 that makes the turn body 20 turned and reset toward the home position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic home return type shuttle switch mechanism provided in a control unit such as an audio system and a car air conditioner.

[0002]

2. Description of the Related Art Conventionally, there are various types of switches for controlling a car air conditioner and the like. For example, a rotary knob switch for turning an indicated point provided on a knob switch to an indicated point indicating a desired state, By rotating the operating ring to the left or right to operate the switch once, returning the operating ring to the home position, and then turning the switch to the left or right again to operate the switch again, There is a so-called automatic origin return type shuttle switch that routinely controls the state of a car air conditioner according to the number of times the switch is operated.

The latter automatic return-to-origin shuttle switch is based on a method in which the switch is turned on once when a right or left rotation operation is performed. By holding the state, it is possible to add a control method of sequentially switching the mode.

[0004]

In order to perform the above-described operation and control in the shuttle switch of the automatic home return type, a mechanism for automatically returning the operation ring to the home position, and a left and right rotation force of the operation ring. Is transmitted to the switch, and a mechanism for turning on / off the switch, a mechanism for detecting whether the switch is turned to the left or right, and the like need to be efficiently stored in a limited space. In addition, if these mechanisms are complicated, failures often increase. Therefore, it is desirable that the mechanisms be as simple as possible. Further, it is preferable that the switch mechanism be capable of forming a thin shuttle switch from the viewpoint of design of an operation panel of a car air conditioner or the like.

SUMMARY OF THE INVENTION It is an object of the present invention to make the switch thinner, to have a simple structure, to be inexpensive to manufacture, and to turn on the switch once when one of the right and left rotation operations is performed. It is an object of the present invention to provide a shuttle switch mechanism of an automatic origin return type capable of detecting which of left and right directions has been rotated. It is another object of the present invention to reduce the breakdown and the work load at the time of repair by using a simple mechanism.

A second object of the present invention is to provide an automatic home return shuttle switch having a simpler internal structure by integrating the operation ring and the rotating body into one structure.

A third object of the present invention is to provide an automatic return-to-origin shuttle capable of preventing dust or the like from entering a case in which a switch, a board, and the like are stored, and preventing a failure due to dust. The purpose is to provide a switch mechanism.

A fourth object of the present invention is to prevent a dust or the like from entering the inside of the switch by mounting the two-way detector switch so that the switch lever faces downward when mounting the switch. An object of the present invention is to provide a shuttle switch mechanism that can be prevented from occurring beforehand.

A fifth object of the present invention is to provide an automatic home return shuttle switch in which the driver can easily turn the operation dial by setting the maximum turning angle of the turning body to 15 ° to 50 ° on each side. Is to provide a mechanism.

[0010]

Means for Solving the Problems In order to solve the above-mentioned problems, the present inventor has intensively developed the structure and operating principle of an automatic home return type shuttle switch. It has been found that it is possible to effectively convert the rotational force applied to the switch to the lever tilting force of the two-way detector switch, and to turn the switch on and off.

That is, in the shuttle switch mechanism of the present invention, when the lever is tilted to the left or right, the contact pieces provided for each of the tilting directions are pressed against the contacts to perform an ON operation, and the lever is turned on. The lever is automatically returned to the origin in accordance with the release of the tilting stress, so that the contact piece is separated from the contact and turned off, and a driving piece is attached to the lever as the lever is turned in one direction from the origin. Contact, the lever is tilted by the driving piece to turn on the two-way detector switch,
The driving piece is separated from the lever as it is rotated in the direction opposite to the one direction to return to the origin, the lever is returned to the origin, and the two-way detector switch is turned off to operate the lever. A rotating body provided with the driving piece, and a guide groove in which the two-way detector switch is provided inside the case main body and the driving piece that rotates integrally with the rotation of the rotating body is loosely inserted; A case having a left and right rotation stopper for determining the maximum rotation position of the rotating body, and a case for rotatably supporting the rotating body, and an elastic body for rotating and returning the rotating body toward the origin. It is characterized by doing.

[0012] In the shuttle switch mechanism of the present invention, it is preferable that the rotating body is formed integrally with an operation ring outside the rotating body. In the automatic return-to-origin shuttle switch mechanism of the present invention, for example, the rotating body and the operating ring in FIG. 1 are separate components, but the rotating body and the operating ring can be formed integrally. This is because the number of parts can be reduced and the internal structure can be simplified.

[0013] In the shuttle switch mechanism of the present invention, it is preferable that the rotating body is provided with a protruding plate around the outer peripheral surface of the rotating body so as to protect the guide groove from dust.

In the shuttle switch mechanism of the present invention, it is preferable that the two-way detector switch is installed such that the lever is directed downward.

In the shuttle switch mechanism of the present invention, the rotating body may have a maximum rotation angle of 1 on each of the right and left sides.
The angle is 5 to 50 °.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The shuttle switch mechanism of the present invention will be described in detail below, but the present invention is not construed as being limited to these embodiments.

As an example, FIG. 1 shows an embodiment of an automatic home return type shuttle switch mechanism according to the present invention used for controlling a control unit of a car air conditioner. The automatic return-to-origin shuttle switch mechanism 100 of the present invention includes an operating ring 10, a rotating body 20 for fixing the operating ring 10, a case 30 for rotatably supporting the rotating body 20, and a circuit board 40 housed in the case 30. It includes a two-way detector switch 41 provided above, and a coil spring 60 which is an example of an elastic body attached to the rotating body 20 and the case 30 and returning the rotating body 20 to the origin.

The operation ring 10 is a ring that is directly touched when the driver controls a car air conditioner or the like, and is preferably a cylindrical shape, to which a non-slip irregular shape or the like is appropriately added.

The rotating body 20 has a cylindrical shape, and is provided with a protruding plate 21 on which a pin 22 for fixing the coil spring 60 is erected on a cylindrical side portion. The protruding plate 21 may have any shape as long as the pin 22 can be erected, but it is preferable that the protruding plate 21 be small in size because it is desirably housed in the operation ring 10. The protruding plate 21 and the pin 22 may be provided at any position on the cylindrical side of the rotating body 20 within a range in which the rotating body 20 and the operation ring 10 return to the original position after the rotation by the coil spring 60.

The rotating body 20 has a driving piece 23 for operating the lever 42. As will be described in detail later, the driving piece 23 is
The lever 4 of the two-way detector switch 41 at the time of rotation of 0
2 is tilted to turn on and off the two-way detector switch 41. In this embodiment, the two driving pieces 23
a and 23b, but as shown in FIG.
2 can be tilted, the driving pieces 23a, 23b and the portion corresponding to the intermediate portion thereof are made into a continuous body, and the driving pieces 23a, 23
The thickness of the intermediate portion of b may be changed to a thinner driving piece or the like. The reason why the thickness is reduced is to prevent the contact between the driving piece and the lever. In the shuttle switch mechanism of the present invention, for example, the rotating body 20 and the operation ring 10 in FIG. 1 are separate parts, but the operation ring 10 is integrally formed outside the rotating body 20. Is also possible. This is because the number of parts can be reduced and the internal structure can be simplified.

The case 30 includes a support portion 31 for rotatably supporting the rotating body 20 and an end portion 24 of the driving piece 23 in the rotating direction.
And a left and right rotation stopper 33 that comes into contact with. Left and right rotation stop 3
Reference numeral 3 has a role of determining a predetermined maximum rotation position of the rotating body 20. The case 30 has a guide groove 32 into which the driving piece 23 that rotates integrally with the rotation of the rotating body 20 is loosely inserted, and a concave portion 34 into which the bottom of the rotating body 20 is loosely fitted. The recess 34 is preferably provided for stabilizing the rotating body and for reducing the thickness of the automatic home return type shuttle switch mechanism 100, but need not be provided. The case 30 has a two-way detector switch 41 provided inside.

The end 24 of the driving piece 23 in the rotating direction is
The positional relationship between the left and right rotation stoppers 33 that come into contact with the end portions 24 is such that the maximum rotation angle of the rotation
It is preferable to adjust so that This adjustment is performed by adjusting the cut width of the guide groove 32.

One end of the coil spring 60 is fixed to a pin 22 erected on the protruding plate 21, and the other end of the coil spring 60 is
It is fixed to a pin 35 provided on the case 30. Instead of the coil spring 60, an elastic body such as a metal spring, natural rubber or synthetic rubber having rubber elasticity, or a thermoplastic elastomer may be used. Note that, even if the rotating body 20 is rotated left and right up to the maximum rotation angle, the coil spring 60 is preferably in an extended state, and when at least one is fully extended, the other is free. In FIG. 1, the coil spring 60, the pin 22, and the pin 35 are provided on the front side of the case 30, but may be provided inside the case.

The rotating body 20 shown in FIG. 1, the support portion 31 of the case 30, the guide groove 32, the concave portion 34, and the right and left rotation stopper 3
The form of 3 may be a form as shown in FIG. 2 or FIG.

FIG. 2 shows an embodiment in which a driving piece 25 is provided around the outer peripheral surface of the rotating body 20a. Drive piece 25
Is loosely inserted into the guide groove 32a so as to rotate integrally with the rotation of the rotating body 20a. End 2 of drive piece 25 in the rotation direction
8 and the left / right rotation stopper 36 come into contact with each other, and the rotating body 20a freely rotates to a predetermined maximum rotation angle.

In FIG. 3, a projecting plate 27 is provided on the outer peripheral surface of the rotating body 20b so as to cover the guiding groove 32b in a dust-proof manner.
This shows an embodiment in which a driving piece 26 is provided on the back surface of the projection plate 27. The driving piece 26 is loosely inserted into the guide groove 32b so as to rotate integrally with the rotation of the rotating body 20b. Drive piece 2
6, the end 29 in the rotating direction and the left and right rotation stopper 37 come into contact with each other,
The rotating body 20b freely rotates up to a predetermined maximum rotation angle. In addition, 27 c which is both end surfaces of the projection plate 27 and the concave portion 34
Both ends 37e of the fan section b may be in contact with each other, that is, both ends 37e of the fan section may serve as a left-right rotation stopper.

Here, it is preferable that the protruding plate 27 is provided around the outer peripheral surface of the rotating body 20b so as to cover the guide groove 32b in a dust-proof manner. As a result of preventing dust from entering the inside of the case main body, failures of the two-way detector switch 41, the circuit board 40, and the like can be reduced.

In brief, the configuration of the rotating body, the supporting portion of the case, the guide groove, the concave portion, and the left and right rotation stoppers shown in FIGS. 1 to 3 is such that the rotating body is restricted from rotating at the maximum left and right rotation angle positions. The rotating body is rotatable within the angle range,
It is possible to realize that the driving piece is loosely inserted into the case, and that the lever of the two-way detector switch can be tilted by the driving piece that rotates integrally with the rotation of the rotating body. I just want it.

The form corresponding to the rotating body, the coil spring (elastic body) and the pin for fixing the elastic body shown in FIG. 1 may be the form shown in FIG. 4, 5, 6, 7, or 8.

The one shown in FIG. 4 uses a leaf spring 70 as an elastic body, one of which is fixed to a case fixing portion 71, and the other is provided with a cut 72 in the outer periphery of the rotating body, and the leaf spring 70 is formed in the cut 72. The rotating body 20c is inserted by the leaf spring 70.
Is rotated back toward the origin.

5A, a winding spring 74 is fixed to a pin 73 provided on a projection plate, and the winding spring 74 is hooked on a pin 75 provided on a case. Is rotated back toward the origin. FIG. 5A shows a case where the rotating body 20d is located at the origin, and when the rotating body 20d is rotated, the winding spring 74 is moved to the position shown in FIG.
Bend as shown in (b). Note that when the rotating body 20d is rotated to some extent, one of the coil springs 74 is
Pins 77a and 77b as stoppers are provided on the protruding plate so as to be separated from one of the pins 76 provided on b.

FIG. 6A shows a rotating body 20e.
A torsion spring 78 is wound around the outer periphery of the rotating member 20e, and the torsion spring 78 causes the rotating body 20e to rotate back toward the origin. Each of the rotating body 20e and the case 30e
Two pins 79a, 79b, 80a, 80b are provided as stoppers. FIG. 6B shows a state when the rotating body 20e is rotated.

FIG. 7 (a) shows a rotating body 20f.
A projection 81 provided at any part of the outer periphery of the elastic body 8 attached to the projection 81 and the case 30f is provided.
2 comes into contact with each other, and the elastic body 82 causes the rotating body 20f to rotate and return toward the origin. FIG. 7B
7 shows a case where the rotating body 20f is at the origin, and FIG.
(C) shows the elastic body 82 when the rotating body 20f is rotated.
This shows the deformation of. The elastic body 82 is preferably formed of a thermoplastic elastomer, natural rubber, or synthetic rubber.

FIG. 8 (a) shows a rotating body 20f.
A projection 83 corresponding to an elastic body
The rotating body 20f and the projection 83 are integrally formed of a material which is easily elastically deformed, such as polypropylene or polyacetal resin, and the projection fixing pins 84a, 84b are formed on the case 30f.
And the rotating body 20f is rotated back toward the origin by the projection 83. FIG. 8B shows a deformation of the projection 83 when the rotating body is rotated when the rotating body 20f is at the origin.

4, 5, 6, 7 or 8 show various other embodiments. In short, any embodiment may be used as long as the rotating body can be automatically returned to the origin.

FIG. 9 shows an embodiment of the two-way detector switch 41. By tilting the lever 42 to the left or right, the contact pieces 43 provided for each tilt direction are pressed against the contact points 44 to perform an ON operation, and the lever 42 is automatically returned to the origin in accordance with the release of the tilt stress of the lever 42. The contact piece 43 is separated from the contact point 44 to perform an OFF operation. As the two-way detector switch 41, for example, Matsushita Electronic Components Co., Ltd. type ESE24 can be exemplified. In the home position automatic return type shuttle switch mechanism according to the present invention, the two-way detector switch 41 detects in which direction the rotating body 20 is rotated left or right,
In addition, the switch can be turned on and off.

FIG. 10 shows the positional relationship between the two-way detector switch and the driving piece. FIG. 10 shows an example of the shuttle switch mechanism 100 with the automatic home return type in FIG.
Rotating body 20, guide groove 32, driving pieces 23a, 23b and 2
A from the plane direction with respect to the direction detector switch 41
It is a sectional view taken on line -A '. FIGS. 10 (a), (b), and (c)
The two-way detector switch 41 is different in that the direction of the two-way detector switch 41 is upward, downward, and vertical upward with respect to the plane of the paper, however, when the home return shuttle switch is at the home position, the lever 42 is moved between the drive piece 23a and the drive piece 23b. In common. In FIG. 10B, since the lever 42 faces downward, dust is generated by 2
This is a preferable mode because it can be prevented from entering the direction detector switch 41.

Since the shuttle switch mechanism of the present invention uses a two-way detector switch,
Durability can be improved as compared with the case where a brush-type contact is used.

Next, the rotating body 20, the driving pieces 23a, 23
b, the guide groove 32, the left and right rotation stoppers 33a and 33b, and the relationship between the two-way detector switch 41, FIG.
This will be described with reference to FIGS. FIG. 11A is a diagram illustrating a state where the rotating body is returning to the origin. The two-way detector switch 41 includes a driving piece 23a and a driving piece 23b.
Located in the middle of. The lever 42 has returned to the origin because no tilting stress is applied. At this time, the switch is off. Next, as shown in FIG.
Is rotated to the left, the one end surface of the driving piece 23a comes into contact with the lever 42, and a tilting stress is applied to the lever 42 so that the lever 42 starts to tilt.
Position. Further, as shown in FIG.
When 0 is further rotated to the left, the driving piece 23a and the lever 42 are positioned so that the lever 42 is completely tilted by the driving piece 23a. When the rotating body 20 is rotated to the maximum rotation angle, one end face 24b of the driving piece 23b is rotated.
Contacts the left and right rotation stopper 33b which is the end face of the guide groove 32. The switch is turned on when the lever 42 is tilted. It should be noted that the same relationship holds when the rotating body 20 is first rotated rightward.

As long as the above positional relationship is maintained, the rotating body 20, the driving pieces 23a and 23b, the guide groove 32, the left and right rotation stoppers 33a and 33b, and the two-way detector switch 41
Can be appropriately adjusted, but the rotation angle and the left and right rotation stopper 33a when the switch-on signal starts to be generated,
It is preferable that the angle difference until the rotation body 20 reaches the maximum rotation angle by the 33b does not become so large. If the angle difference is too large, the time during which the switch is in the ON state is prolonged.
This is because if the mode is switched, the driver feels strange. In any case, it is possible to easily tune the optimum operation angle by adjusting the above positional relationship.

In the shuttle switch mechanism according to the present invention, the case thickness in the rotation axis direction is determined by the two-way detector switch, the axial length of the rotary body, and the length of the driving piece, and the thickness of the operation dial. Even if added, a compact automatic return-to-origin shuttle switch mechanism can be provided.

By adopting a simple mechanism, it is possible to reduce the number of failures and the work load at the time of repair.

Although the present embodiment has been described with reference to a case in which one auto return shuttle switch mechanism is provided in the case 30, a plurality of auto return shuttle switch mechanisms may be provided.

It is possible to add another control switch to the shuttle switch mechanism for automatic return to origin according to the present invention. For example, a switch for pushing in the rotation axis direction may be provided on the top surface of the operation ring 10.

Next, the principle of operation of the automatic home return shuttle switch 100 according to the present invention will be described with reference to FIG. FIG. 11A shows the state of the shuttle switch (located at the origin) before the driver operates it. The two-way detector switch 41 is located between the driving piece 23a and the driving piece 23b. The lever 42 has returned to the origin because no tilting stress is applied. At this time, the switch is off. Next, the driver rotates the operation ring (not shown) to the left to drive the driving pieces 23a and 23b.
To move. At this time, the driver feels the turning resistance because the operating ring is turned against the spring stress generated by the coil spring (not shown) that returns the turning body 20 to the original position. When the rotating body 20 is further rotated, FIG.
As shown in FIG. 1B, one end face of the driving piece 23a and the lever 4
2 comes into contact and a tilting stress is applied to the lever 42, so that the lever 42 starts to tilt. The switch is turned on when the lever 42 is tilted to a predetermined angle. Further, the rotating body 2
The lever 42 is completely tilted by the driving piece 23a that rotates the zero (not shown). When the rotating body 20 is further rotated, the lever 42 is completely tilted by the driving piece 23a as shown in FIG.
The one end surface 24b contacts the left and right rotation stopper 33b, which is the end surface of the guide groove 32, and the rotating body 20 has rotated to the maximum rotation angle. Next, as shown in FIG.
0 is automatically rotated rightward when released, and the driving piece 23
The lever 42 starts to be separated from the one end surface of "a", and the lever 42 starts to return from the inclined state to the return state. When the lever 42 returns to the predetermined angle, the switch is turned off. Finally, as shown in FIG. 11E, the rotating body 20 returns to the origin, and the two-way detector switch 41
And the driving piece 23b. Further, since no tilting stress is applied to the lever 42, the lever 42 completely returns to the origin.

When the driver wants to turn on the switch only once, the operating ring is released, and the shuttle switch automatically returns to the origin by the action of the coil spring (not shown).

When the driver turns on the switch a plurality of times to sequentially switch the mode of the car air conditioner or the like,
After the operation ring is rotated to the maximum rotation angle, the operation ring is returned to the origin and the same rotation operation is performed again. Or,
The control circuit may be configured to sequentially switch modes by maintaining the switch-on state while maintaining the maximum rotation angle.

Although the case where the rotating body is rotated to the left has been described, the same operation is performed when the rotating body is rotated to the right.

The operation principle of the shuttle switch having the structure of the elastic body shown in FIGS. 4 to 8 is the same, and the method of use is the same as described above.

[0050]

According to the first aspect of the present invention, the switch can be made thinner, has a simple structure, can be manufactured at a low cost, and operates the switch once when either right or left rotation is performed. An automatic return-to-origin type shuttle switch mechanism that can be turned on and detect whether the rotation has been performed in the left or right direction can be provided. By using a simple mechanism, it was also possible to reduce the number of failures and the work load during repair.

According to the second aspect of the present invention, the operation ring and the rotary body are integrally formed, so that an automatic home return shuttle switch having a simpler internal structure can be provided.

According to the third aspect of the present invention, it is possible to prevent dust and the like from entering a case in which a switch, a board, and the like are housed,
An automatic return-to-origin shuttle switch mechanism that can prevent a failure due to dust beforehand can be provided.

According to the fourth aspect of the present invention, when the two-way detector switch is mounted, the switch is installed so that the lever of the switch faces downward, so that dust or the like can be prevented from entering the inside of the switch, and failure due to dust can be prevented. An automatic return-to-origin shuttle switch mechanism that can be prevented can be provided.

According to the fifth aspect of the present invention, by setting the maximum rotation angle of the rotating body to 15 ° to 50 ° for each of the left and right sides, the driver can easily turn the operation dial without difficulty. Could be provided.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of an automatic home return shuttle switch mechanism according to the present invention.

FIG. 2 is a view showing a second embodiment of the automatic home return shuttle switch mechanism according to the present invention.

FIG. 3 is a view showing a third embodiment of the shuttle switch mechanism with automatic home return according to the present invention.

FIG. 4 is a view showing one embodiment of a configuration of a shuttle switch mechanism that automatically returns to the original point by using a leaf spring in the automatic return shuttle switch mechanism according to the present invention.

FIGS. 5A and 5B are views showing one embodiment of a configuration in which the automatic return-to-origin type shuttle switch mechanism according to the present invention uses a winding spring to return to the original position. FIG. (B) is a diagram showing a case where the rotating body is rotated rightward.

FIGS. 6A and 6B are views showing one embodiment of a configuration in which a torsion spring is used to return to the origin in a shuttle switch mechanism of an automatic origin returning type according to the present invention, wherein FIG. (B) is a diagram showing a case where the rotating body is rotated rightward.

FIG. 7 is a view showing one embodiment of a configuration in which an automatic return-to-origin type shuttle switch mechanism according to the present invention uses an elastic body such as a thermoplastic elastomer to rotate and return toward the origin. () Is a diagram illustrating the configuration, (b) is a diagram illustrating a case where the rotating body is at the origin, and (c) is a diagram illustrating a case where the rotating body is rotated to the right.

FIG. 8 is a perspective view of the shuttle switch mechanism according to the present invention, in which a projection corresponding to an elastic body is provided on the outer periphery of the rotating body, and the rotating body and the projection are easily deformed elastically, such as polypropylene or polyacetal resin. It is a figure which shows one form of the structure which makes it rotate back toward the origin using what was integrally formed in (a), The figure which shows the structure, (b) When a rotating body is in an origin, (C) is a figure which shows the case where a rotating body is rotated right.

FIG. 9 is a diagram showing one embodiment of a two-way detector switch used in the automatic home return shuttle switch mechanism according to the present invention.

FIG. 10 is a concept showing a cross section taken along the line AA ′ of the rotating body 20, the guide groove 32, the driving pieces 23a and 23b, and the two-way detector switch 41 in the shuttle switch mechanism 100 shown in FIG. 5A shows a case where the two-way detector switch is upward, FIG. 5B shows a case where the two-way detector switch is downward, and FIG. 5C shows a case where the two-way detector switch is vertically upward with respect to the paper surface. FIG.

FIG. 11 shows one embodiment of a positional relationship among a rotating body, a driving piece, a guide groove, a left / right rotation stop and a two-way detector switch, and an operation state of switch on / off of the automatic home return shuttle switch mechanism according to the present invention. FIG.
(A) when the rotating body is at the origin, (b) when the driving piece is 2
If you start to touch the lever of the directional detector switch,
(C) is a state where the switch is completely turned on and the rotating body is rotated to the maximum rotation angle, (d) is a process in which the rotating body is returning to the home position, and includes a driving piece and a two-way detector. (E) is a diagram showing a case where the lever of the switch starts to separate, and (e) a case where the rotating body returns to the origin.

[Explanation of symbols]

10,10d, 10e, 10f, 10g, operation ring 20,20a, 20b, 20c, 20d, 20e, 20f, 2
0g, rotating body 21, 27, projection plate 23, 23a, 23b, 25, 25a, 25b, 26, 26a,
26b, drive piece 24, 24a, 24b, 28, 28a, 28b, 29, 29a,
29b, convex portion 22, 35, 35a, 35b, 73, 75, 76, 77a, 77
b, 79a, 79b, 80a, 80b, 84a, 84b, pins 27a, 27b, 27c, end portions 30, 30b, 30d, 30e, 30f, 30g of the protruding plate, case 31, support portions 32, 32a, 32b , Guide grooves 33, 33a, 33b, 36, 36a, 36b, 37, 37a,
37b, 37c, 37d, 37e, left and right rotation stop 34, 34a, 34b, recess 40, circuit board 41, two-way detector switch 42, two-way detector switch lever 43, 43a, 43b, contact piece 44, 44a, 44b, Contact points 60, 61, 62, coil spring (elastic body) 70, leaf spring (elastic body) 71, case fixing portion 72, cutout 74, winding spring (elastic body) 78, torsion spring (elastic body) 81, projection 83 , Projection (elastic body) 82, Elastic body formed of thermoplastic elastomer, natural rubber, or synthetic rubber 100, Automatic return-to-origin shuttle switch mechanism

Continuation of the front page (72) Inventor Hiroyo Saito 39, Higashihara, Chiyo-ji, Oga-gun, Osato-gun, Saitama Prefecture F-term (reference) 5G019 CY01 CZ02 CZ10 CZ14 KK04 LL02 SK02 SY10

Claims (5)

[Claims] When the lever is tilted to the left or right, contact pieces provided for each tilting direction are pressed against the contacts to perform an ON operation, and the lever automatically returns to the origin according to the release of the tilting stress of the lever. A two-way detector switch that separates the contact piece from the contact and performs an off operation; and a drive piece comes into contact with the lever as it is rotated in one direction from the origin, and the lever is brought into contact with the drive piece. 2
As the direction detector switch is turned on, and the direction is returned in the opposite direction to the one direction to return to the origin, the driving piece is separated from the lever, the lever is returned to the origin, and the two-way detector switch is turned off. A rotating body provided with the driving piece for operating the lever; and a two-way detector switch disposed inside the case main body, and the driving piece rotating integrally with the rotation of the rotating body. A guide groove for inserting, a left and right rotation stopper for determining a maximum rotation position of the rotating body, and a case for rotatably supporting the rotating body; and rotating the rotating body toward the origin. An automatic return shuttle switch mechanism, comprising: an elastic body for returning; 2. The shuttle switch mechanism according to claim 1, wherein said rotating body is integrally formed with an operation ring outside said rotating body. 3. The automatic starting point according to claim 1, wherein the rotating body has a projection plate provided on an outer peripheral surface of the rotating body in a cover shape so as to protect the guide groove from dust. Returnable shuttle switch mechanism. 4. The shuttle switch mechanism according to claim 1, wherein said two-way detector switch is installed such that a lever is directed downward. 5. The rotating body has a maximum rotation angle of 1 for each of the right and left sides.
5. The shuttle switch mechanism according to claim 1, wherein the angle is 5 to 50 [deg.].