JPH11311331A - Shift operation detecting switch for motor-bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compactly form shift operation detecting switches for performing detection immediately before the shift and immediately after the shift across the width of a vehicle body and in the longitudinal direction of the vehicle body. SOLUTION: A moving member 15 is provided so that it can freely move in the longitudinal direction of a body, and is connected to a shift pedal to be interlocked with it. Two pieces 21, 22 to be detected are provided at the same positions across the width of a vehicle body so as to be projected in the direction perpendicular to the moving direction of the moving member 15. Proximity sensors 17, 18 are provide at the same positions as the pieces 21, 22 to be detected, across the width of the vehicle body. The piece 21 to be detected on the front side in the direction in which the moving member is moved during the speed up, is formed so that its amount projected from the moving member is smaller than that of the other piece 22 to be detected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift operation detection switch for a motorcycle, which outputs operation position detection signals immediately before and after a shift.

[0002]

2. Description of the Related Art Conventionally, as a motorcycle for racing, there is a motorcycle in which, for example, the engine is temporarily misfired in order to reduce the engine output when the speed is increased by operating a shift pedal. In the state where the engine is misfired, the shift can be performed without using the clutch, so that this kind of motorcycle can reduce the time required for speed increase. The timing for stopping the ignition of the engine and the timing for restarting the ignition are detected by a shift operation detection switch connected to the shift pedal.

As this switch, a detecting member for detecting an ignition stop timing and a detecting member for detecting an ignition start timing are provided on a moving member which reciprocates in the front-rear direction of the vehicle body in conjunction with a shift pedal. There is a type in which a detection piece is detected by a non-contact type proximity sensor. The moving member has a structure in which the moving member is moved to the rear side of the vehicle body by increasing the speed of a shift pedal while being supported on a side of a crankcase of an engine, and the two detected pieces are provided at an upper portion so as to be arranged in a vehicle width direction. I have. Note that, of the two detected pieces, the detected piece for detecting the ignition stop timing is disposed so as to be more unevenly distributed on the rear side of the vehicle body than the other detected piece for detecting the ignition start timing.

The two proximity sensors for detecting the detection target have a structure for sending a control signal to the ignition device when the detection target is detected, and are disposed above the moving member to be positioned in front and rear of the vehicle body. They are lined up in the vehicle width direction at the same position in the direction. In addition, the two detected pieces and the proximity sensor detect one of the detected pieces for detecting the ignition stop timing immediately before the speed change mechanism starts operating at the time of speed increase, and the ignition start timing is detected immediately after the shift is completed. Is located at a position where the other proximity sensor detects the detection target piece for use.

[0005]

However, the conventional shift operation detecting switch configured as described above detects the ignition start timing beside the detection target for detecting the ignition stop timing and the proximity sensor. Since the detected piece and the proximity sensor are arranged side by side, there is a problem that the detection piece greatly protrudes outward from the crankcase in the vehicle width direction. The large protrusion of the switch from the crankcase in this way
This is a serious problem in a motorcycle for racing because the frontal projected area of the vehicle body is correspondingly increased and the air resistance is increased. In order to reduce the size of the switch in the vehicle width direction, it is necessary to prevent the switch from becoming large in the front-rear direction of the vehicle body.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a shift operation detecting switch for detecting immediately before and immediately after a shift is compactly formed in a vehicle width direction and a longitudinal direction of the vehicle body. With the goal.

[0007]

In order to achieve this object, a shift operation detecting switch for a motorcycle according to the present invention comprises:
The moving direction of the moving member that is interlocked with the speed change operation means is a direction along a plane perpendicular to the vehicle width direction, and two detected pieces are arranged on the moving member in the direction perpendicular to the moving direction by arranging in the moving direction of the moving member. Proximity sensors are provided so as to protrude and line up in the moving direction, and the amount of protrusion of the detected piece on the front side in the direction in which the moving member moves at the time of speed increase from the moving member becomes smaller than the other detected piece. The proximity sensor is set in such a manner that the set position of the proximity sensor with respect to the moving member is set to a separation position corresponding to the amount of protrusion.

According to the present invention, two detected pieces and two proximity sensors are arranged at the same position in the vehicle width direction. Moreover,
The detected piece on the front side in the direction in which the moving member moves at the time of speed increase,
Since the other proximity sensor is not detected when the moving member moves in the opposite direction, the distance between the two proximity sensors can be reduced to the minimum distance at which these proximity sensors can be arranged. .

A shift operation detection switch for a motorcycle according to another invention is the shift operation detection switch for a motorcycle according to the invention described above, wherein the moving member is supported on the outer portion of the engine as a structure for moving in the front-rear direction of the vehicle body. One of the two detected pieces is configured to be movable in the front-rear direction of the vehicle body with respect to the other detected piece. According to the present invention, the size can be reduced in the vehicle width direction and the front-rear direction of the vehicle body. Further, the position of the one detected piece can be changed from outside the vehicle body.

A shift operation detecting switch for a motorcycle according to another aspect of the present invention is the shift operation detection switch for a motorcycle according to the above-described aspect of the invention. The moving member is provided with a detection piece protruding from a rotating end of the moving member. Since the rotating member of the transmission of the operating force of the transmission is rotatably supported by the crankcase, according to the present invention, a bearing for exclusively rotatably supporting the moving member is unnecessary.

A shift operation detection switch for a motorcycle according to another invention is the shift operation detection switch for a motorcycle according to any one of the above-mentioned inventions, wherein a detection signal is used for ignition control. According to the present invention, the engine output can be reduced at the time of speed increase by temporarily suspending the ignition of the engine.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment Hereinafter, an embodiment of a shift operation detecting switch for a motorcycle according to the present invention will be described in detail with reference to FIGS.

FIG. 1 is a side view of an engine equipped with a shift operation detecting switch according to the present invention, FIG. 2 is a diagram showing a shift operation detecting switch, FIG. 1 (a) is a longitudinal sectional view, and FIG. It is a rear view showing the state where the housing was seen from the rear of the body. FIG. 3 is an enlarged cross-sectional view showing a main part. FIG. 3A shows a state in which a detection piece for detecting ignition stop timing is detected by a proximity sensor, and FIG. 3B shows an ignition start timing. FIG. 6C shows a state when the detection target piece is detected by the proximity sensor, and FIG. 7C shows a state when the shift pedal is turned to the end on the speed increasing side.

In these figures, an engine denoted by reference numeral 1 is an engine according to this embodiment. This engine 1
Is a water-cooled two-cycle V-type two-cylinder engine in which a cylinder 3 is attached to an upper part and a lower part of a front side of a crankcase 2 on a vehicle body. I support them.

Further, the engine is provided with the crankshaft 4.
An artificially operated clutch (not shown) is connected to the right end of the vehicle body, and the rotation of the crankshaft 4 is controlled by the output shaft 7 via the clutch and the gear type transmission 6 housed at the rear of the crankcase. The structure to transmit to is adopted. The power of the engine 1 is transmitted from the output shaft 7 to the rear wheels via a chain (not shown).

The transmission 6 has a conventionally well-known structure in which a power transmission gear is switched by a dog clutch by operating a shift pedal indicated by reference numeral 8 in FIG. In this embodiment, the shift pedal 8 constitutes a shift operation means according to the present invention. The shift pedal 8
Is rotatably supported on the vehicle body frame 5 via a support shaft 9 and is connected to a shift lever 11 on the left side of the vehicle body via a first connecting rod 10. The shift lever 11 is a shift rod 1 rotatably supported by a crankcase 2.
2 is fixed to the left end of the vehicle body. This transmission 6
The speed is increased by depressing the shift pedal 8 from the neutral position shown by a solid line in FIG. 1 so as to rotate clockwise in FIG. 1, and pulling the shift pedal 8 from the neutral position to rotate counterclockwise in FIG. Slow down by raising.

A shift operation detecting switch 14 according to the present invention is connected to the shift lever 11 via a second connecting rod 13. In this embodiment, the shift operation detection switch 14 detects a time immediately before the speed increase is performed by the transmission 6 after the shift pedal 8 is operated to the speed increase side and a time immediately after the speed increase is completed. It is formed so that it can be. More specifically, as shown in FIGS. 1 and 2, the switch 14 includes a moving member 15 connected to the front end of the second connecting rod 13 on the vehicle body, and a moving member 1.
Housing 5 for supporting movably in the longitudinal direction of the vehicle body
6 and first and second proximity sensors 17 and 18 fixed to a central portion of the housing 16 and fixed to the crankcase 2 via a support bracket 19 as shown in FIG.

In this embodiment, a support bracket 19 is fixed to a magneto stator mounting portion 1a of the engine 1, and the housing 16 is mounted on the outer side of the support bracket 19 with a mounting bolt 20.

The moving member 15 is made of a magnetic material, is formed in a rod shape with a length penetrating the housing 16 in the front-rear direction of the vehicle body, and detects an ignition stop timing in the moving direction (longitudinal direction). The first detection piece 21 is formed integrally. The first detection piece 21 is formed so that the cross-sectional shape thereof when viewed from the front-back direction of the vehicle body is circular.

The movable member 15 has a second detection piece 22 made of a magnetic material cylinder screwed to the front end of the vehicle body. The second detected piece 22 is for detecting the ignition start timing, and is formed to have a larger outer diameter than the first detected piece 21. In other words,
The first detection piece 21 is formed such that the amount of protrusion from the moving member 15 is smaller than that of the second detection piece 22.

The second detection piece 22 is rotated with respect to the moving member 15 in a state where the lock nut 23 screwed to the front end of the moving member 15 is loosened. The position of the direction can be changed. The moving member 15 is positioned at the position shown in FIG. 2 when the shift pedal 8 is in the neutral position, and moves to the rear of the vehicle body (right side in FIG. 2) by operating the shift pedal 8 to the speed increasing side. By operating the shift pedal 8 to the deceleration side, the vehicle moves to the front side of the vehicle body.

The housing 16 has a sliding bearing 24 fitted at both ends in the front-rear direction of the vehicle body, a retaining lid 25 fixed with fixing bolts 26, and a maintenance lid 27 (FIG. 1) at the center. ) Are fixed with fixing bolts 28. The sliding bearing 24 is provided to prevent the moving member 15 from being displaced relative to the housing 16 in a direction perpendicular to the front-rear direction of the vehicle body (a direction perpendicular to the moving direction of the moving member). A sliding bearing 24 on the rear side of the vehicle body slidably supports the moving member 15, and a sliding bearing 24 on the front side of the vehicle body slidably supports the second detection piece 22.

The maintenance lid 27 is for closing a sensor chamber 29 formed at the center of the housing 16 so as to open toward the left side of the vehicle body. The rear ends of the first detection piece 21 and the second detection piece 22 are positioned in the sensor chamber 29, and the first and second proximity sensors 17, 18 are viewed from above.

First and second proximity sensors 17 and 18
FIG. 3 shows a state below the front end surface (lower end surface in the figure) and FIG.
An electromagnetic pickup that is turned on when the edges of the detection pieces 21 and 22 are located at positions corresponding to the center line indicated by a dashed line therein.
5 so as to be arranged in the moving direction and to be separated from each other in the front-rear direction of the vehicle body. These proximity sensors 17,
Numerals 18 have the same configuration and are connected to an ignition device 31 (see FIG. 1) to be described later via lead wires 30, respectively. In addition, these proximity sensors 17, 18
Adopts a configuration in which a control signal is output to the ignition device 31 when the ignition device 31 is turned on.

First proximity sensor 17 located on the rear side of the vehicle body
Is fixed relatively lower so that the first detection piece 21 having a relatively small diameter can be detected, and the second proximity sensor 18 located on the front side of the vehicle body is provided with the second proximity sensor 18. The detection piece 22 is fixed relatively upward so that the detection target piece 22 can be detected. That is, these proximity sensors 17, 1
The set position of the moving member 8 with respect to the moving member 15 is a separation position corresponding to the amount of protrusion of the two detected pieces 21 and 22. FIG. 3A shows a state in which the first proximity sensor 17 detects the first detected piece 21, and FIG.
FIG. 3B shows a state in which the second detection piece 22 is detected.

The fixing of these proximity sensors 17 and 18
Proximity sensors 17 and 18 are inserted into through holes 16a formed in the upper part of the housing so as to extend in the vertical direction, and set screws 32 are screwed into screw holes 16b extending from the through holes 16a to the left side of the vehicle body. ing. The opening on the left side of the vehicle body of the screw hole 16 b is covered by a maintenance lid 27 attached to the housing 16.

The position at which the first proximity sensor 17 is mounted and the position of the first detected piece 21 are determined by operating the shift pedal 8 to the speed increasing side and immediately before the dog clutch of the transmission 6 starts operating. Is set to detect the first detected piece 21. Also, the second proximity sensor 18
And the position of the second detected piece 22 are set such that the second proximity sensor 18 detects the second detected piece 22 when the operation of the dog clutch ends at the time of the speed increase. I have. That is, immediately before the speed increase, the first proximity sensor 1
7 outputs a control signal to the ignition device 31, and after the acceleration is completed, a control signal is output from the second proximity sensor 18 to the ignition device 31.

The ignition device 31 employs a circuit for switching between the following two ignition modes when the above-described control signal is input. The two ignition modes are an ignition mode in which power is supplied to the ignition plug 33 (see FIG. 1) and an ignition stop mode in which power is not supplied to the ignition plug 33. In this embodiment, the ignition mode is set at the time of starting the engine,
An ignition stop mode is set when a control signal is input, and an ignition mode is set when a control signal is input again. That is, the ignition device 31 has a simple circuit that does not identify which of the first proximity sensor 17 and the second proximity sensor 18 the control signal that has been input is a control signal output from the proximity sensor. I am taking it.

Next, the operation of the shift operation detecting switch 14 configured as described above will be described with reference to FIG. When the shift pedal 8 is depressed and operated from the neutral position to the speed increasing side,
The operating force is the first connecting rod 10 and the shift lever 1
1, transmitted to a transmission mechanism (not shown) of the transmission 6 via the shift rod 12 and the first connecting rod 10
Is transmitted to the switch 14 on the front side of the vehicle body via the second connecting rod 13. By this speed-up operation, switch 1
4 moves from the position shown in FIG. 2 to the right side in FIG. Then, immediately before the dog clutch of the transmission mechanism starts operating, as shown in FIG. 3A, the first detected piece 21 is detected by the first proximity sensor 17, and the first proximity sensor 17 A control signal is output to the ignition device 31.

When the control signal is input, the ignition device 31 shifts to an ignition stop mode and stops supplying power to the ignition plug 33. As a result, the engine 1 is in a misfire state, and the power of the engine 1 is not transmitted to the transmission 6 without operating the clutch. At this time, by continuously performing the speed increasing operation, the transmission 6 shifts to the speed increasing side. That is, the speed can be increased without performing the clutch operation.

When the shifting operation of the dog clutch is completed, the second detected piece 22 of the switch 14 is detected by the second proximity sensor 18 as shown in FIG. 18 outputs a control signal to the ignition device 31. When receiving the control signal, the ignition device 31 shifts from the ignition stop mode to the ignition mode, and restarts the power supply to the ignition plug 33. As a result, engine 1
Is ignited again after the speed increase to generate power.

In the transmission 6 for a motorcycle, the shift pedal 8 can be further operated to increase the speed even after the shift operation of the dog clutch is completed. Thus, the moving member 15 of the switch 14 also moves. FIG. 3C shows the position of the moving member 15 when the shift pedal 8 is operated on the speed increasing side until it cannot be operated.

On the other hand, when the shift pedal 8 is pulled up from the neutral position and operated to the deceleration side, the moving member 15 of the switch 14 is moved.
Moves from the position shown in FIG. 2 to the front side of the vehicle body (left side in FIG. 2). At the time of deceleration, the first detected member 21 passes below the second proximity sensor 18 as indicated by a broken line in FIG. However, the second proximity sensor 18 does not
The first detection piece 21 is not detected at this time because it is located above the proximity sensor 17. Therefore, the second proximity sensor 18 is provided to the ignition device 31 during deceleration.
Does not output a control signal and does not stop ignition.

Accordingly, the shift operation detecting switch 14 having the above-described structure is provided with two detected pieces 21 and
2 and the proximity sensors 17 and 18 are arranged at the same position in the vehicle width direction so as to be arranged in the moving direction of the moving member 15, respectively. Therefore, compared to a conventional switch in which these are arranged in the vehicle width direction. Thus, the width in the vehicle width direction can be reduced.

In addition, since the first detected piece 21 located on the front side in the direction in which the moving member 15 moves at the time of speed increase is formed to have a smaller diameter than the second detected piece 22, the moving member 15 can be moved at the time of deceleration. When moved in the opposite direction, the first detected piece 21 is not detected by the second proximity sensor 18.
For this reason, the interval between the two proximity sensors 17 and 18 can be reduced to the minimum interval at which these proximity sensors 17 and 18 can be arranged, and the two detected members 2
The distance between the two proximity sensors 17 and 18 can be reduced as compared with the case where the diameters of the first and second sensors 22 are equal.

If the first detection member 21 and the second detection member 22 are formed so as to have the same diameter and the two proximity sensors 17 and 18 are arranged side by side at short intervals, the first detection member 21 and the second detection member 22 are arranged at short intervals. The detected member 21 is detected by the second proximity sensor 18 and the ignition is stopped unnecessarily. However, the diameter of the first detected member 21 is
By making the diameter smaller, it is possible to prevent such a malfunction. In order to prevent the above-described malfunction from occurring, an ignition control circuit provided in the ignition device 31 is provided with a control signal that includes two proximity sensors 17 and 1.
The configuration may be such that it is possible to identify which of the proximity sensors 8 has been output. However, adopting this configuration complicates the circuit and increases the cost.

That is, the shift operation detecting switch 14 shown in this embodiment can not only reduce the size of the vehicle in the vehicle width direction but also reduce the cost of the ignition device 31 in the front-rear direction of the vehicle body. The size can be reduced.

The shift operation detecting switch 14 is
By loosening the lock nut 23, the position of the second detection piece 22 can be changed from outside the vehicle body.
The task of adjusting the timing to stop ignition or the timing to restart ignition is simple.

Second Embodiment A shift operation detecting switch for a motorcycle according to another invention will be described in detail with reference to FIGS. FIG. 4 is a sectional view showing the configuration of a shift operation detecting switch according to another invention, and FIG. 5 is a sectional view taken along line VV in FIG. In these drawings, the same or equivalent members as those described in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description is omitted.

A switch 14 shown in FIGS. 4 and 5 has a moving member 15 formed in a disk shape, and a shift rod 1 of a transmission.
2 is fixed in a state where it penetrates. In this embodiment, the moving member 15 is fixed to a portion of the shift rod 12 located inside the crankcase 2. In addition,
The shift rod 12 rotates clockwise in FIG. 5 when the speed is increased.

The moving member has a first detected piece 21 and a second detected piece 22 projecting from an outer peripheral portion. The first detection piece 21 is formed so that the amount of protrusion is smaller than that of the second detection piece 22. These detected pieces 21 and 2
Proximity sensors 17 and 18 for detecting 2 are supported on the crankcase 2 by brackets (not shown).

The position at which the first proximity sensor 17 is mounted and the position at which the first detected piece 21 is formed can be determined immediately before the dog clutch of the transmission 6 starts operating by operating the shift pedal 8 to the speed increasing side. One proximity sensor 17 is set to detect the first detection piece 21. The position at which the second proximity sensor 18 is mounted and the position at which the second detected piece 22 is formed are determined by the second proximity sensor 18 when the operation of the dog clutch ends at the speed increase. 22 is set to be detected. That is, as in the case of the first embodiment, the control signal is output from the first proximity sensor 17 to the ignition device 31 immediately before the speed increase, and the second proximity sensor 18 outputs the ignition device 31 from the second proximity sensor 18 after the speed increase is completed. The control signal is output to

In FIG. 4, the reference numeral 41 located on the right side of the vehicle body of the crankcase 2 is a link mechanism for transmitting the rotation of the shift rod 12 to the speed change mechanism. Further, in FIG. 5, the positions of the first and second detected members 21 and 22 when the shift pedal 8 is operated to the deceleration side until the shift pedal 8 can no longer be operated are indicated by a two-dot chain line.

Even when the shift operation detecting switch is configured as described above, the same operation and effect as those in the first embodiment can be obtained. Further, since the shift rod 12 is rotatably supported by the crankcase 2, a bearing for rotatably supporting the moving member 15 is not required. For this reason, the function of rotatably supporting the moving member 15 can be provided to the crankcase 2 and the shift rod 12, which are existing members, so that a more compact shift operation detection switch 14 can be formed.

In each of the above-described embodiments, an example has been described in which the engine output is reduced by temporarily stopping the ignition at the time of increasing the speed. However, when the injector is used in the fuel supply system of the engine, the increase in the engine output is reduced. It is possible to adopt a structure in which fuel injection by the injector is stopped at a high speed or the engine output is reduced by reducing the fuel injection amount. By adopting the structure for stopping the ignition as shown in each of the above-described embodiments, responsiveness when the engine output decreases and when the engine output returns is better than when controlling the fuel injection amount.

Further, in each of the above-described embodiments, the example in which the shift operation detecting switch is operated by operating the shift pedal 8 is described. However, the shift operation means is not limited to the shift pedal 8. For example, in a motorcycle provided with a transmission that operates an actuator to operate a shift by operating a shift switch provided on a steering wheel side, a shift operating means is the shift switch.

Further, in each of the above-described embodiments, an example has been described in which the two proximity sensors 17 and 18 are positioned above the moving member 15, but one proximity sensor is positioned above the moving member and the other proximity sensor is positioned above the moving member. A structure in which the member is positioned below the moving member may be employed.

[0048]

As described above, the shift operation detecting switch of the motorcycle according to the present invention has the conventional structure because the two detected pieces and the proximity sensor are disposed at the same position in the vehicle width direction. As a result, downsizing in the vehicle width direction can be achieved. Moreover, since the detected piece on the front side in the direction in which the moving member moves at the time of speed increase is not detected by the other proximity sensor when the moving member moves in the opposite direction, the distance between the two proximity sensors is The distance can be reduced to the minimum distance at which these proximity sensors can be arranged. Therefore, the size of the switch can be reduced in a direction orthogonal to the vehicle width direction.

According to another aspect of the invention in which the moving member is configured to move in the front-back direction of the vehicle body, it is possible to provide a shift operation detection switch that is downsized in the vehicle width direction and the vehicle body front-back direction. Also, the shift operation detection switch of the present invention
Since the position of one of the detected pieces can be changed from outside the vehicle body, the operation of adjusting the timing to stop the ignition or the timing to restart the ignition is simple.

According to another aspect of the present invention, the moving member is provided on the rotating member of the operating force transmitting system that rotates in the crankcase of the transmission. Since it is freely supported, a bearing for rotatably supporting the moving member is not required. Therefore, the function of supporting the moving member can be provided to the existing member, so that a more compact shift operation detection switch can be provided.

According to another invention in which the detection signal is used for the ignition control, the engine output can be reduced at the time of speed increase by temporarily interrupting the ignition of the engine. For this reason, the engine output is reduced and returned with a good response to the shift operation.

[Brief description of the drawings]

FIG. 1 is a side view of an engine equipped with a shift operation detection switch according to the present invention.

FIG. 2 is a diagram showing a shift operation detection switch.

FIG. 3 is an enlarged sectional view showing a main part.

FIG. 4 is a cross-sectional view showing a configuration of a shift operation detection switch according to another invention.

FIG. 5 is a sectional view taken along line VV in FIG.

[Explanation of symbols]

1 ... Engine, 2 ... Crankcase, 6 ... Transmission, 8 ...
Shift pedal, 12: shift rod, 14: shift operation detecting switch, 15: moving member, 17: first proximity sensor, 18: second proximity sensor, 21: first detected piece,
22: second detected piece, 31: ignition device.

Claims (4)

[Claims] A moving member which moves in conjunction with a speed change operation means, and detects two detected pieces provided on the moving member by a non-contact type proximity sensor, so that a non-contact type proximity sensor can be used to determine whether the speed is immediately before or after the speed change. In the shift operation detection switch for a motorcycle that outputs an operation position detection signal, a moving direction of the moving member is set to a direction along a plane orthogonal to a vehicle width direction, and the two detected pieces are attached to the moving member by the moving member. The proximity sensor is arranged so as to be arranged in the moving direction and protrudes in a direction orthogonal to the moving direction of the moving member, and the proximity sensor is arranged in the moving direction of the moving member, so that the moving member out of the two detected pieces increases. The detected piece located on the front side in the direction of moving at high speed is formed so that the amount of protrusion from the moving member is smaller than the other detected piece, and the set position of the proximity sensor with respect to the moving member is also set. A shift operation detection switch for a motorcycle, wherein the shift position is a position corresponding to the amount of protrusion. 2. The shifting operation detection switch for a motorcycle according to claim 1, wherein the moving member is supported on an outer portion of the engine as a structure for moving the moving member in the front-rear direction of the vehicle body, and one of the two detected pieces is the other. A shift operation detection switch for a motorcycle, wherein the shift operation detection switch is configured to be movable in the front-rear direction of the vehicle body with respect to the detected piece. 3. The shifting operation detection switch for a motorcycle according to claim 1, wherein the moving member is provided on a rotating member of an operating force transmission system that rotates in a crankcase of the transmission.
A shift operation detection switch for a motorcycle, wherein a detection piece protrudes from a rotating end of the moving member. 4. A motorcycle according to claim 1, wherein the detection signal is used for ignition control in any one of the motorcycle shift operation detection switches. Shift operation detection switch.