JP2004220919A - Turn signal switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a turn signal switch capable of avoiding shortening of life caused by the abrasion of a contact and surely avoiding an electric disorder caused by the water permeated into a case. <P>SOLUTION: The turn signal switch comprises a case 1 which can be fixed to the neighboring part of a holding grip of a handle-bar, an operating knob 2 which can be pushed in and turned toward left and right side from a neutral position with an axis of movement 1c arranged in the case as a center, a plastic magnet 3 which can be moved based on the pushing and turning movement of the operating knob 2, a hole element 4 changing an output voltage depending on the change of the magnetism following the movement of the plastic magnet 3, and a judging logic part 5 which, based on the output voltage from the hole element 4, judges which winker, out of the left and right side winkers arranged on a two-wheeled vehicle, should be flashed or turned off, and flashes or turns off the specified winker based on the judgement result. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a turn signal switch that is attached in the vicinity of a grip of a handlebar provided in a vehicle such as a two-wheeled vehicle and that can selectively blink either a left or right blinker included in the vehicle.
[0002]
[Prior art]
Generally, a grip grip is attached to the left and right ends of a handlebar of a two-wheeled vehicle, and a turn signal switch is fixed in the vicinity of the grip grip. Such a turn signal switch is a switch for operating a blinker disposed on each of the left and right sides of a motorcycle to blink or turn off a desired side blinker. Conventionally, a case fixed to a handlebar, and the case An operation knob that can be swung while projecting from the movable knob, a movable contact that moves in accordance with the swinging motion of the operation knob, and a fixed contact that is fixed to the case and can be contacted with or separated from the movable contact. (For example, the one disclosed in Patent Document 1).
[0003]
When the movable contact is moved by swinging the control knob in the neutral position to the left, for example, the movable contact contacts the fixed contact on the right side to form a circuit, and the blinker on the left side of the motorcycle flashes. On the other hand, when the movable contact is moved by swinging the control knob in the neutral state to the right, for example, the movable contact contacts the left fixed contact to form another circuit, and the right winker of the two-wheeled vehicle is moved. Can be flashed. Further, when the operation knob is pushed in the protruding direction, the blinking blinker is turned off and can be forcibly canceled.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 7-254328
[Problems to be solved by the invention]
However, in the above conventional turn signal switch, a movable contact is brought into contact with a predetermined fixed contact so as to be electrically connected to form a circuit for blinking either the left or right blinker. Due to wear between the movable contact and the fixed contact, the life of the switch was limited. In particular, in the case of a turn signal switch, the operation knob has a push-in operation in the protruding direction in order to forcibly turn off the blinking blinker in addition to a swinging operation in the left-right direction, and a fixed contact and a movable contact As compared with other devices, it is expected that many sliding operations will be performed, and there is a great demand for improving the life of the switch.
[0006]
In addition, in the case of a vehicle equipped with a handlebar such as a two-wheeled vehicle or a snowmobile, since the case with the movable contact and the fixed contact is exposed to the outside, water intrusion into the case is unavoidable. There was a risk of electrical failure. However, in order to avoid such problems due to water immersion, a seal member is also interposed so that water does not enter the case. However, the performance limit of such a seal member and the swing of the operation knob are ensured. Considering the clearance, etc., it is difficult to completely block the inundation, and the actual situation is that the fundamental solution has not been reached.
[0007]
The present invention has been made in view of such circumstances, and is a turn signal switch that can avoid a reduction in life due to wear of contacts and can reliably avoid electrical problems due to water intrusion into the case. Is to provide.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, a case that can be fixed in the vicinity of a grip of a handlebar provided in a vehicle, a protrusion protruding from the case, and a left and right from a neutral position with a swing shaft provided in the case as a center. And an operation knob that can be pushed in from the neutral position in the protruding direction, and a magnet that is provided on the operation knob and that can move based on the swinging and pushing operations of the operation knob. A magnetic detection unit fixed in the case and different in output voltage according to a change in magnetism accompanying the movement of the magnet, and a left or right turn signal included in the vehicle based on the output voltage from the magnetic detection unit And a determination logic unit that blinks or extinguishes a predetermined blinker based on a result of the judgment. With blink the winker side of, the pushing operation of the operation knob, characterized in that it can be canceled and the flashing.
[0009]
According to a second aspect of the present invention, in the turn signal switch according to the first aspect, the magnetic detection unit includes two Hall elements that change the resistance value according to the strength of the magnetic force applied from the magnet and vary the output voltage. In addition, when the operation knob is in a neutral position, the magnet is formed at a position facing each hall element, and the magnet moves by a swinging operation and pushing operation of the operation knob. The magnetic force from the magnet is changed by a predetermined amount.
[0010]
According to a third aspect of the present invention, in the turn signal switch according to the second aspect of the present invention, the turn signal switch includes a resistance element for setting an output voltage from the magnetic detection unit within a predetermined range.
[0011]
According to a fourth aspect of the present invention, there is provided the turn signal switch according to the first aspect, wherein the magnetic detection unit is a single angle sensor that varies in output voltage depending on the direction of the magnetic field applied from the magnet. The magnet is formed at a position facing the angle sensor when the operation knob is in a neutral position, and the angle of the magnet with respect to the angle sensor is changed by swinging the operation knob. When the magnet is moved by the pushing operation, the magnetism applied to the angle sensor from the magnet is cut off.
[0012]
According to a fifth aspect of the present invention, in the turn signal switch according to the fourth aspect of the present invention, by arranging a shield plate for shielding magnetism on a side surface of the magnet, the magnet is moved by pushing the operation knob. The magnetism applied to the angle sensor from a magnet is cut off.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.
The turn signal switch according to the first embodiment of the present invention is attached in the vicinity of a grip grip on a handlebar of a two-wheeled vehicle and can be switched to blink or turn off a winker provided in the two-wheeled vehicle. As shown in FIG. 1, the case 1 is mainly composed of a case 1, an operation knob 2, a plastic magnet 3, a Hall element 4 as a magnetic detection unit, and a determination logic unit 5.
[0014]
The case 1 is made of a resin molded product that can be fixed in the vicinity of a grip of a handle bar of a motorcycle (not shown). As shown in FIG. The first case 1a formed in the above and the second case 1b including the substrate 6 having the Hall element 4 are connected as shown in FIG.
[0015]
A swing shaft 1c that swingably supports the operation knob 2 is formed integrally with the upper portion of the swing space S in the first case 1a, and a moderation imparting a top surface that constitutes an action mountain is provided below the swing shaft 1c. A member 8 is provided. That is, when the operation knob 2 swings around the swing shaft 1c, the moderation imparting member 8 is provided with a moderation during operation when the top surface of the moderation imparting member 8 has a substantially parabolic shape protruding downward. It is configured as follows.
[0016]
The second case 1b has an accommodation recess M1 formed in the upper part and a hole M2 formed in the lower part. Among these, the accommodation recess M1 is filled with resin while the substrate 6 on which the Hall element 4 and the terminal 7 are formed is accommodated, whereby the entire substrate 6 is resin-molded. Further, the distal end side of the terminal 7 formed on the substrate 6 extends to the hole M2, and the connector 9 is formed together with the hole M2.
[0017]
The operation knob 2 is formed so as to protrude upward from the case 1, and can be operated to swing left and right from a neutral position around a swing shaft 1c provided in the first case 1a. The push-down operation is made possible (downward in FIG. 1). Specifically, the operation knob 2 includes a resin knob portion 2a that allows an operator to hold or abut a finger, and a swing member 2b that extends downward from the knob portion 2a.
[0018]
An elongated hole 2ba extending in the vertical direction is formed at a substantially center in the longitudinal direction of the oscillating member 2b, and the oscillating shaft 1c is inserted into the elongated hole 2ba and assembled. A notch 2bb is formed upward from the lower end of 2b, and a steel ball 11 is inserted into the notch 2bb via a coil spring 10. The steel ball 11 is constantly biased downward by the coil spring 10 and is pressed against the upper surface of the moderation member 8.
[0019]
As a result, when the knob portion 2a is swung to the left or right, as shown in FIG. 5 or 6, the entire operation knob 2 is swung around the swing shaft 1c and the steel ball 11 is imparted with moderation. While sliding along the upper surface of the member 8, it moves in the direction of immersing into the notch 2bb against the urging force of the coil spring 10. When the operator releases his finger from the knob portion 2a, the steel ball 11 tries to move in a direction protruding from the notch 2bb by the biasing force of the coil spring 10, and the force applied to the upper surface (inclined surface) of the moderation member 8 is The entire operation knob 2 returns to the neutral position (that is, the state shown in FIG. 4).
[0020]
On the other hand, when the knob portion 2a is pushed downward, as shown in FIG. 7, the long hole 2ba allows the entire operation knob 2 to move downward, so that the coil spring 10 resists the biasing force. The operation knob 2 moves downward. When the operator releases his finger from the knob portion 2a, the operation knob 2 is moved upward by the urging force of the coil spring 10 and returned to the neutral position.
[0021]
Here, the operation knob 2 is formed with a plastic magnet 3 in place of the conventional movable contact. The plastic magnet 3 is to be molded by mixing magnetic powder with magnetism into plastic, and is formed to protrude from the lower part of the operation knob 2 in the left-right direction. That is, when the operation knob 2 is swung or pushed, the pair of plastic magnets 3 can be moved in the left-right direction or moved in the up-down direction based on the operation. For convenience, as shown in FIG. 4, the plastic magnet 3 protruding from the left side of the operation knob 2 is referred to as a first plastic magnet 3a, and the plastic magnet 3 protruding from the right side is referred to as a second plastic magnet 3b.
[0022]
The Hall element 4 has a resistance value that varies depending on the strength of the magnetic force applied from the magnet and varies the output voltage. As shown in FIG. 4, the first Hall element 4a and the second Hall element 4b are different from each other. One is fixed on the substrate 6. The respective hall elements 4a and 4b are respectively fixed at predetermined positions on the substrate 6 so as to face the plastic magnets 3a and 3b when the operation knob 2 is in the neutral position.
[0023]
As shown in FIG. 3, the first Hall element 4a and the second Hall element are connected in parallel to the power supply Vcc, and are connected to the output terminals OUTPUT-L and OUTPUT-R, respectively. These output terminals are connected to the determination logic unit 5 and correspond to the strength of the magnetism exerted from the plastic magnet 3 to each Hall element 4 as the operation knob 2 is operated and the plastic magnet 3 moves. The output voltage is output to the determination logic unit 5.
[0024]
Specifically, when the operation knob 2 is in the neutral position, both the first plastic magnet 3a and the second plastic magnet 3b are opposed to the first Hall element 4a and the second Hall element 4b, respectively, and are closest to each other. The magnetism exerted on each Hall element 4 is strong. Accordingly, since the resistance values of both Hall elements 4 are low, the output voltages of the output terminals OUTPUT-L and OUTPUT-R are both low (L) as can be seen from FIG.
[0025]
When the operation knob 2 is swung to the right from the neutral position, the state shown in FIG. 5 is obtained, and the proximity state between the first plastic magnet 3a and the first Hall element 4a is maintained, and the second Hall element 4b extends from the second position. 2 The plastic magnet 3b is separated. Therefore, while the magnetic strength exerted on the first Hall element 4a is maintained, the magnetic strength exerted on the second Hall element 4b is weakened, so that the output voltage of the output terminal OUTPUT-L is a high value (H ) And the output voltage of the output terminal OUTPUT-R becomes a low value (L).
[0026]
On the contrary, when the operation knob 2 is swung leftward from the neutral position, the state shown in FIG. 6 is obtained, and the proximity state between the second plastic magnet 3b and the second Hall element 4b is maintained, and the first Hall element 4a is maintained. Thus, the first plastic magnet 3a is separated. Therefore, while the magnetic strength exerted on the second Hall element 4b is maintained, the magnetic strength exerted on the first Hall element 4a is weakened, so that the output terminal of the output terminal OUTPUT-R has a high value (H ) And the output voltage of the output terminal OUTPUT-L becomes a low value (L).
[0027]
Further, when the operation knob 2 is pushed in and brought into the state of FIG. 7, both the first plastic magnet 3a and the second plastic magnet 3b are opposed to the first Hall element 4a and the second Hall element 4b, respectively, and are most separated. In this state, the magnetism exerted on each Hall element 4 is weak. Therefore, since the resistance values of both Hall elements 4 are high, the output voltages of the output terminals OUTPUT-L and OUTPUT-R are both high (H).
[0028]
The change in the output voltage is transmitted to the determination logic unit 5. The determination logic unit 5 determines, based on the output voltage, whether the left or right blinker included in the two-wheeled vehicle should blink or extinguish according to a predetermined determination logic, and blinks the predetermined blinker based on the determination result. It will be turned off. That is, as shown in FIG. 8, it is determined whether the left and right blinkers should be blinked or the blinker blink should be canceled according to the output voltage from the Hall element 4, and a predetermined electric circuit is determined based on the result. Is configured or blocked.
[0029]
According to the figure, if the operation knob 2 is swung to the left, the left blinker blinks. If the operation knob 2 is swung to the right, the right blinker blinks, and if the operation knob 2 is pushed in, the blinker blinks. Can be canceled. In addition, since the previous state is maintained when the operation knob 2 is in the neutral position, even if the operation knob 2 returns to the neutral position after the operation, blinking or extinction based on the operation is maintained.
[0030]
As shown in FIG. 3, in the circuit on the substrate 6, resistance elements R1 to R3 are connected to the Hall element 4a side, and resistance elements R4 to R6 are connected to the Hall element 4b side. With such a resistance element, the output voltage from each Hall element 4 can be set within a predetermined range. For example, when the voltage of the power supply Vcc is 5V, the output voltage is limited to a range from 0.5V to 4.5V.
[0031]
As a result, when the connection of a cord (not shown) to the terminal 7 is disconnected, or when the power supply or the output terminal is disconnected, the output voltage becomes 0V, and when the GND is disconnected, the output voltage is 5V (power supply When the voltage of Vcc is 5V), the output voltage exceeds the range from 0.5V to 4.5V as described above, and in this case, it can be recognized that an abnormality such as disconnection has occurred. .
[0032]
According to the first embodiment, three operations such as the blinking operation of the left blinker, the blinking operation of the right blinker, and the cancel operation by the two Hall elements 4 (the first Hall element 4a and the second Hall element 4b). Can be performed. Therefore, it is possible to reduce the manufacturing cost of the turn signal switch as compared with the one provided with the three magnetic detection units for detecting the three operations of the operation knob 2 respectively.
[0033]
Next, a turn signal switch according to a second embodiment of the invention will be described. In addition, the same code | symbol is attached | subjected to the component similar to 1st Embodiment, and the detailed description is abbreviate | omitted.
[0034]
As in the first embodiment, the turn signal switch according to the present embodiment is attached in the vicinity of a grip grip on a handlebar of a two-wheeled vehicle, and can be switched to blink or turn off a blinker included in the two-wheeled vehicle. As shown in FIGS. 9 to 12, the case 1, the operation knob 2, the plastic magnet 3, the angle sensor 12 as the magnetic detection unit, the determination logic unit 5, and the shield plate 14 are mainly configured. .
[0035]
As in the first embodiment, the case 1 includes a first case 1a in which a swing shaft 1c and a swing space S are formed, and a second case in which a substrate 6 having an angle sensor 12 is embedded. In this way, the substrate 6 is resin-molded. Further, a moderation member 8 is formed in the swing space S, and the steel ball 11 biased by the coil spring 10 can slide. As a result, moderation during the swinging operation is obtained, and when the operator removes the finger from the operation knob 2, the operation knob 2 always returns to the neutral position.
[0036]
The operation knob 2 is swingable from the neutral position to the left and right around the swing shaft 1c, and is a portion corresponding to the swing shaft 1c and at a position covering the tip of the swing shaft 1c. Is formed with a plastic magnet 3 protruding toward the second case 1b. Thereby, when the operation knob 2 is operated to swing, the plastic magnet 3 formed at the center of the swing is rotated.
[0037]
Further, a shield plate 14 for blocking magnetism is disposed on the side surface of the plastic magnet 3 to restrict the range of magnetism of the plastic magnet 3. That is, since the side surface of the plastic magnet 3 is surrounded by the shield plate 14, the magnetism is limited to the position facing the plastic magnet 3.
[0038]
Further, one angle sensor 12 is fixed at a position on the substrate 6 facing the plastic magnet 3. The angle sensor 12 changes the resistance value according to the direction of the magnetic lines of force applied from the magnet and varies the output voltage. When the plastic magnet 3 rotates in accordance with the swing operation of the operation knob 2, the magnetic line of force is applied. The resistance value is configured to change in accordance with the change in direction.
[0039]
As shown in FIG. 11, the angle sensor 12 is connected to an amplifier 13 disposed on the substrate 6, and the output voltage of the angle sensor 12 is amplified through the amplifier 13 and then amplified. The value is sent to the determination logic unit 5. The output voltage amplified through the amplifier 13 is set to have an output waveform as shown in FIG. 13, for example. When the operation knob 2 is in the neutral position, it is point A, and when it is swung to the left, point B is on the right. When the rocking operation is performed, the point C is obtained, and when the operation knob 2 is pushed in, the point D is obtained.
[0040]
In particular, when the plastic magnet 14 moves downward as the operation knob 2 is pushed, the plastic magnet 14 is separated from the angle sensor 12 and is not opposed to the magnet. Disappear. Thus, when the operation knob 2 is pushed in, the minimum output voltage (in this embodiment, about 0.5 V as shown in FIG. 13) is obtained.
[0041]
Based on the output voltage from the angle sensor 12, the determination logic unit 5 determines whether the left and right winkers of the two-wheeled vehicle should be blinked or extinguished according to predetermined determination logic, and determines the predetermined winker based on the determination result. It blinks or turns off. That is, as shown in FIG. 14, it is determined whether to blink the left or right blinker or to cancel blinking of the blinker according to the output voltage from the angle sensor 12, and based on the result, a predetermined electric circuit is determined. Is configured or blocked.
[0042]
According to the figure, if the operation knob 2 is swung to the left, the left blinker blinks. If the operation knob 2 is swung to the right, the right blinker blinks, and if the operation knob 2 is pushed in, the blinker blinks. Can be canceled. In addition, since the previous state is maintained when the operation knob 2 is in the neutral position, even if the operation knob 2 returns to the neutral position after the operation, blinking or extinction based on the operation is maintained.
[0043]
According to the second embodiment, one angle sensor 12 can perform three operations such as a blinking operation of the left blinker, a blinking operation of the right blinker, and a cancel operation. Therefore, it is possible to reduce the manufacturing cost of the turn signal switch as compared with the one having three or two magnetic detection units. In addition, since the shield plate 14 for blocking magnetism is disposed on the side surface of the plastic magnet 3, the magnetism from the plastic magnet exerted on the angle sensor can be reliably cut off when the operation knob 2 is pushed in. Thus, the determination by the determination logic unit can be made more accurate, and blinking of the blinker can be canceled more reliably.
[0044]
As described above, the first embodiment and the second embodiment have been described. However, the present invention is not limited thereto. For example, instead of a plastic magnet, a permanent magnet may be bonded to the operation knob, and the operation knob is interlocked. As long as the output voltage is varied according to the change in magnetism accompanying the movement of the magnet, the magnetic detection unit different from the Hall element or the angle sensor may be used.
[0045]
Furthermore, the determination by the determination logic unit is not limited to the method as in the above-described embodiment, and can be arbitrarily designed. Furthermore, in the present embodiment, the turn signal switch attached to the handlebar of the two-wheeled vehicle is shown, but the present invention is also applicable to other vehicles having a handlebar such as a snowmobile, a three-wheel or a four-wheel buggy. Can do.
[0046]
【The invention's effect】
According to the first aspect of the present invention, the magnet is moved based on the swinging operation and the pushing operation of the operation knob, and the blinker on the desired side is blinked according to the change in magnetism accompanying the movement, and the blinking is canceled. Therefore, the winker can be operated without contact without using a contact. Accordingly, it is possible to avoid a decrease in the life due to the wear of the contacts, and to reliably avoid an electrical failure due to water immersion in the case.
[0047]
According to the invention of claim 2, three operations such as the blinking operation of the left blinker, the blinking operation of the right blinker, and the canceling operation can be performed by the two hall elements. Therefore, it is possible to reduce the manufacturing cost of the turn signal switch as compared with the one provided with three magnetic detection units for detecting the three operations of the operation knob.
[0048]
According to the invention of claim 3, since the resistance element for setting the output voltage from the magnetic detection unit within a predetermined range is provided, abnormality such as disconnection occurs when the output voltage exceeds the range. Can be recognized.
[0049]
According to the invention of claim 4, three operations such as a blinking operation of the left blinker, a blinking operation of the right blinker, and a cancel operation can be performed by one angle sensor. Therefore, it is possible to reduce the manufacturing cost of the turn signal switch as compared with the one having three or two magnetic detection units.
[0050]
According to the fifth aspect of the present invention, since the shield plate for cutting off the magnetism is disposed on the side surface of the magnet, the magnetism exerted on the angle sensor can be reliably cut off when the operation knob is pushed in, so that the canceling can be performed. The determination by the determination logic unit during operation can be performed more accurately, and blinking of the blinker can be canceled more reliably.
[Brief description of the drawings]
1A is a front view showing a turn signal switch according to a first embodiment of the present invention, FIG. 1B is a right side view thereof, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 4 is a circuit diagram illustrating a configuration of a substrate and a connection state with a determination logic unit in the turn signal switch according to the first embodiment of the present invention. FIG. 4 is a sectional view taken along line IV-IV in FIG. Fig. 5 is a neutral view. Fig. 5 is a cross-sectional view of the operation knob swung to the right. Fig. 6 is a cross-sectional view of the operation knob is swung to the left. Fig. 7 is the operation knob. FIG. 8 is a cross-sectional view showing a state in which the switch is pushed in. FIG. 8 is a diagram showing logic in a determination logic unit in the turn signal switch according to the first embodiment of the present invention. Front view showing the turn signal switch (b) FIG. 10 is a cross-sectional view taken along line XX in FIG. 9A. FIG. 11 is a circuit diagram showing a configuration of a substrate and a connection state with a determination logic unit in a turn signal switch according to a second embodiment of the present invention. FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 9B. FIG. 13 is a diagram showing an output waveform from the angle sensor in the turn signal switch according to the second embodiment of the invention. The figure which shows the logic in the determination logic part in the turn signal switch concerning 2nd Embodiment
DESCRIPTION OF SYMBOLS 1 ... Case 1c ... Swing axis 2 ... Operation knob 3 ... Plastic magnet (magnet)
4 ... Hall element (magnetic detector)
DESCRIPTION OF SYMBOLS 5 ... Determination logic part 6 ... Board | substrate 7 ... Terminal 8 ... Moderation provision member 9 ... Connector 10 ... Coil spring 11 ... Steel ball 12 ... Angle sensor (magnetic detection part)
13 ... Amplifier 14 ... Shield plate

Claims (5)

A case that can be fixed in the vicinity of the grip of the handlebar of the vehicle;
An operation knob formed so as to protrude from the case, swingable from the neutral position to the left and right around the swing shaft provided in the case, and pushed from the neutral position in the protruding direction;
A magnet provided on the operation knob and movable based on a swinging operation and a pushing operation of the operation knob;
A magnetic detection unit fixed in the case and configured to vary an output voltage according to a change in magnetism associated with movement of the magnet;
Based on the output voltage from the magnetic detection unit, it is determined which of the left and right blinkers included in the vehicle should be blinked or extinguished, and a determination logic unit that blinks or extinguishes the predetermined blinker based on the determination result;
A turn signal switch, wherein a blinker on a desired side can be blinked by a swinging operation of the operation knob, and the blinking can be canceled by a pushing operation of the operation knob. The magnetic detection unit is composed of two Hall elements whose resistance value changes according to the strength of the magnetic force applied from the magnet and varies the output voltage, and faces each Hall element when the operation knob is in the neutral position. The magnet is formed at each position, and the magnet moves by a swinging operation and a pushing operation of the operation knob, thereby changing a magnetic force from the magnet to each Hall element by a predetermined amount. Item 1. A turn signal switch according to item 1. The turn signal switch according to claim 2, further comprising a resistance element for setting an output voltage from the magnetic detection unit within a predetermined range. The magnetism detection unit is composed of one angle sensor that changes its resistance value according to the direction of the lines of magnetic force applied from the magnet and varies the output voltage, and faces the angle sensor when the operation knob is in the neutral position. The magnet is formed at a position, and the angle of the magnet with respect to the angle sensor is changed by swinging the operation knob, while the magnet moves from the magnet to the angle sensor by pushing the operation knob. The turn signal switch according to claim 1, wherein the applied magnetism is blocked. The magnetism which is applied to the angle sensor from the magnet when the magnet is moved by the pushing operation of the operation knob is provided by disposing a shield plate for blocking magnetism on a side surface of the magnet. Item 5. The turn signal switch according to item 4.

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