JP2016061338A - Gear shift transmission device of saddle-riding type vehicle, and transmission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gear shift transmission device of a saddle-riding type vehicle and a transmission capable of reducing manufacturing costs and miniaturizing the device as a whole by energizing an input-side member and an output-side member to a neutral position by a simple component not causing complication of a structure.SOLUTION: Reaction force production means 40 is disposed between an input-side member 29 and an output-side member 30. A displacement detection sensor is disposed to detect relative displacement of the input-side member 29 and the output-side member 30. The reaction force production means 40 includes a coil spring 36. The coil spring 36 has a turning portion 36a, and a first extension portion 36b and a second extension portion 36c extended from the turning portion 36a. The turning portion 36a is locked to one of the input-side member 29 and the output-side member 30 with an attitude of intersecting an operation input direction. The first extension portion 36b and the second extension portion 36c are locked to the other of the input-side member 29 and the output-side member 30.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a transmission operation transmission device and a transmission for a saddle-ride type vehicle such as a motorcycle.

  Some saddle-ride type vehicles such as motorcycles change the gear position of the transmission by operating a shift pedal. In the case of this type of saddle-ride type vehicle, the shift pedal and the transmission operation unit of the transmission main body are connected by a transmission operation transmission device such as a shift link. In the case of this saddle-ride type vehicle, when the driver depresses or pushes up the shift pedal with the toes, the operation is transmitted to the shift operation section of the transmission main body via the shift operation transmission device, and as a result The gear stage of the transmission is changed.

  Further, in this type of saddle-ride type vehicle, there is known a vehicle equipped with a mechanism capable of instantaneously changing a gear position of a transmission without a driver performing a clutch connecting / disconnecting operation or an accelerator returning operation. This mechanism makes it possible to detect a minute operation behavior during a shift operation by a sensor, and when the sensor detects an up operation or a down operation of a shift pedal, the mechanism of the power transmission system in the transmission is cut by ignition cut of the engine or the like. Decrease the torque while changing the gear meshing of the transmission.

  As a shift operation transmission device used in such a saddle-ride type vehicle, a device that incorporates a mechanism that detects a minute behavior associated with a shift operation of a shift pedal is known (see, for example, Patent Document 1).

In the shift operation transmission device described in Patent Document 1, an input side member connected to a shift pedal and an output side member connected to a shift operation portion of a transmission main body are fitted so as to be relatively displaceable along the axial direction. The input side member and the output side member are biased so as to be maintained at the neutral position by a pair of springs acting in the opposite directions. And between the input side member and the output side member, the displacement detection sensor which detects the relative displacement between both is provided.
In the case of this transmission operation transmission device, when the input side member and the output side member are relatively displaced in the compression direction or the pulling direction when the shift pedal is up or down, the relative displacement can be detected by the displacement detection sensor. .

German Patent Application Publication No. 102010015037

  However, in the conventional transmission operation transmission device, the input side member and the output side member are urged so as to be maintained in the neutral position by a pair of springs acting in the opposite directions, so that the number of parts is large. As a result, there is a concern that the manufacturing cost will rise, and it will easily cause an increase in the size of the entire apparatus.

  Therefore, the present invention enables the input side member and the output side member to be biased to the neutral position by simple parts that do not cause a complicated structure, thereby reducing the manufacturing cost and reducing the size of the entire apparatus. It is an object of the present invention to provide a transmission operation transmission device and a transmission for a riding type vehicle.

  In order to solve the above-described problems, a transmission operation transmission device for a saddle-ride type vehicle according to the present invention includes an input side member (29) coupled to a shift pedal (25), and a transmission operation unit (23) of the transmission main body. An output side member (30) coupled to the input side member, and a reaction force generating means (40) for applying a compression side reaction force and a tension side reaction force between the input side member (29) and the output side member (30). A displacement detection sensor (39A, 39B) for detecting relative displacement between the input side member (29) and the output side member (30) against the reaction force of the reaction force generating means (40). In the transmission operation transmission device (28) for the riding type vehicle, the reaction force generating means (40) is a coil in which extending portions (36b, 36c) are provided on one end side and the other end side of the turning portion (36a). A spring (36), and the swivel portion (36a) of the coil spring (36) operates the input side member (29). It is locked to one of the input side member (29) and the output side member (30) in a posture intersecting with the force direction, and the extension on one end side and the other end side of the coil spring (36). The portions (36b, 36c) are locked to either one of the input side member (29) and the output side member (30) so as to be integrally displaceable.

  In this case, when the shift pedal (25) is operated by the driver, a load in the compression direction or the pulling direction is input from the shift pedal (25) to the input side member (29). As a result, one of the extending portions (36b, 36c) is displaced with respect to the turning portion (36a) of the coil spring (36) to generate a spring reaction force, and the speed is changed through the output side member (30). The speed change operation part (23) of the machine main body is operated. At this time, the relative displacement between the input side member (29) and the output side member (30) is detected by the displacement detection sensors (39A, 39B).

The extension part (36b) on one end side and the extension part (36c) on the other end side of the coil spring (36) may have different extension lengths from the turning part (36a).
In this case, the extension part (36c) having a long extension length from the swivel part (36a) is smaller in coil spring (36) than the extension part (36b) having a short extension length. A large torque can be applied to the. Therefore, the operation load of the shift pedal (25) can be reduced.

Of the extension portion (36b) on one end side of the coil spring (36) and the extension portion (36c) on the other end side, the side that is pressed when the shift pedal (25) is pushed up. The extension part (36c) may be formed longer than the extension part (36b) on the side pressed when the shift pedal (25) is pushed down.
In this case, when the driver pushes up the shift pedal (25) where it is difficult to apply an operating load, the shift can be performed with a smaller operating torque than during the push-down operation.

The swivel part (36a) of the coil spring (36) is preferably disposed below the extension parts (36b, 36c) in a vehicle-mounted state.
In this case, since the weight of the swivel portion (36a) of the coil spring (36) and the portion supporting the swivel portion (36a) is added to the lower side, the center of gravity of the transmission operation transmission device (28) is lowered and It ’s hard to be balanced. Therefore, the smooth operation of the transmission operation transmission device (28) can be obtained.

It is desirable that the input side member (29) and the output side member (30) are disposed below the operation portion of the shift pedal (25) in a vehicle mounted state.
In this case, when the shift pedal (25) is operated, the operation part of the shift pedal (25) and the driver's foot are less likely to interfere with the part of the coil spring (36) that covers the turning part (36a).

  In order to solve the above-described problems, a transmission for a saddle-ride type vehicle according to the present invention includes any one of the shift operation transmission devices described above.

  According to this invention, the swivel portion of the coil spring is locked to either the input side member or the output side member in a posture that intersects the operation input direction of the input side member, and the coil spring has one end side and the other end side. Since the extending portion is engaged with either one of the input side member and the output side member so as to be integrally displaceable, the input side member and the output side member are biased to the neutral position by a coil spring that is a simple component. be able to. Therefore, according to the present invention, it is possible to reduce the manufacturing cost and downsize the entire apparatus.

It is a side view of the transmission which concerns on one Embodiment of this invention. 1 is a partial cross-sectional side view of a part of a transmission according to an embodiment of the present invention. 1 is a partial cross-sectional side view of a part of a transmission according to an embodiment of the present invention. It is a partial cross section side view of a part of transmission according to another embodiment of the present invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the arrow FR indicates the front of the vehicle, and the arrow UP indicates the upper side of the vehicle. In the following description, unless otherwise specified, up and down and front and rear mean up and down and front and rear in a state of being attached to a vehicle.

  FIG. 1 is a diagram showing a left side surface of a transmission 20 employed in a motorcycle that is one form of a saddle-ride type vehicle. The transmission 20 of this embodiment is formed integrally with the engine 10 as a power unit PU. In the power unit PU, the crankcase 12 of the engine 10 that rotatably supports the crankshaft 11 also serves as the transmission case of the transmission 20. A cylinder portion 13 of the engine 10 projects from the upper front side of the crankcase 12 toward the upper front side. A main shaft 21 of the transmission 20 is disposed below the rear portion of the crankshaft 11 in the crankcase 12, and a counter shaft 22 of the transmission 20 is disposed obliquely above the rear portion of the main shaft 21.

  A shift operation shaft 23 for operating a shift drum (not shown) of the transmission 20 is disposed below the rear portion of the installation portion of the main shaft 21 in the crankcase 12. In this embodiment, the speed change operation shaft 23 constitutes a speed change operation part of the transmission main body. One end of the speed change operation shaft 23 protrudes outward from the left end surface of the crankcase 12. An input arm 24 is coupled to the left protrusion of the speed change operation shaft 23 so as to be integrally rotatable by serration coupling or the like. The input arm 24 extends substantially vertically downward from the speed change operation shaft 23.

  A pivot shaft 26 of the shift pedal 25 is pivotally supported at the lower rear lower end of the crankcase 12 so as to be rotatable. The shift pedal 25 includes an operation arm piece 25a extending obliquely upward from the pivot shaft 26 toward the vehicle body front side, and a connecting arm piece 25b extending obliquely upward from the pivot shaft 26 toward the vehicle body rear side. Have. A pedal shaft 27 (operation portion) that protrudes outward in the vehicle width direction is supported on the extended end of the operation arm piece 25a.

  Further, the end portion of the input arm 24 extending downward from the speed change operation shaft 23 and the extension end of the connecting arm piece 25 b of the shift pedal 25 are connected by a speed change operation transmitting device 28. The transmission operation transmission device 28 includes an input side member 29 that is rotatably connected to the connecting arm piece 25 b of the shift pedal 25, and an output side member 30 that is rotatably connected to the input arm 24. .

2 and 3 are partial cross-sectional side views of a part of the transmission 20 with the shift operation transmission device 28 as a center.
As shown in the figure, the input side member 29 includes an input rod 31 having a connection point P with the shift pedal 25 at the rear end, and an engagement plate 32 held by the input rod 31. A contact flange 31a is integrally formed at a substantially central position in the axial direction of the input rod 31. The engagement plate 32 includes a locking flange 32a that is slidably fitted to the outer peripheral surface of the rod portion 31b on the rear side of the contact flange 31a of the input rod 31, and the engagement flange 32a to the contact flange 31a. An extending piece 32b extending forward across the outside. At the front end portion of the extension piece 32b, an engagement hole 33 that penetrates the extension piece 32b in the thickness direction is formed. The input rod 31 and the engagement plate 32 can transmit an input load along the axial direction by abutting between the abutting flange 31a and the locking flange 32a.

  The output side member 30 has a bottomed cylindrical cylindrical block 34 having a connection point P2 with the input arm 24 on the front end side, and a lid member 35 that closes the opening on the rear end side of the cylindrical block 34. doing. The cylindrical block 34 accommodates the engaging plate 32 of the input side member 29 and a part of the input rod 31. The rod portion 31b on the rear side of the input rod 31 penetrates the lid member 35 in a slidable manner. The input rod 31 is configured such that the central axis c coincides with a straight line connecting the front and rear connecting points P2 and P1 in a state where the input side member 29 and the output side member 30 are assembled.

  Further, a bulging portion 34a that bulges downward in a substantially arc shape is provided on the lower surface near the front portion of the cylindrical block 34, and the bulging portion 34a has a coil spring 36 that constitutes the reaction force generating means 40. Some are housed.

  The coil spring 36 is substantially the same as an annular revolving part 36a, a first extending part 36b extending outward from one end of the revolving part 36a, and a first extending part 36b from the other end of the revolving part 36a. A first extending portion 36b extending outward in parallel. In the case of this embodiment, the first extending portion 36b and the second extending portion 36c have different extending lengths, and the second extending portion 36c extends more than the first extending portion 36b. The projecting length is set longer.

  The coil spring 36 is accommodated across the front portion of the main body portion of the cylindrical block 34 and the bulging portion 34a. The coil spring 36 is disposed in the cylindrical block 34 such that the central axis c0 of the turning portion 36a is orthogonal to the central axis c of the input side member 29 and the output side member 30. In the cylindrical block 34, the turning portion 36a is disposed below the central axis c of the input side member 29 and the output side member 30, and the first extension portion 36b and the second extension portion 36c are vertically It extends upward from the central axis c toward the upper side.

A stopper piece 37 that can contact the first extending portion 36b and the second extending portion 36c is provided at a position above the turning portion 36a in the cylindrical block 34. The first extension portion 36b having a short extension length extends upward on the rear side of the stopper piece 37, and the second extension portion 36c having a long extension length is upward on the front side of the stopper piece 37. It extends to.
Further, the turning portion 36 a of the coil spring 36 is locked to the cylindrical block 34 by being fitted to a cylindrical support wall 38 in the cylindrical block 34. Therefore, the turning portion 36a is integrated with the output side member 30 and displaced along the axial direction.

  The first extending portion 36 b of the coil spring 36 is disposed between the front end surface of the rod portion 31 c on the front side of the input rod 31 and the rear surface of the stopper piece 37. The distal end surface of the rod portion 31c is in contact with the first extending portion 36b in the initial state. On the other hand, the second extending portion 36 c extends upward between the front surface of the stopper piece 37 and the bottom surface of the cylindrical block 34, and the tip portion thereof extends from the extending piece 32 b of the engagement plate 32. It is inserted into the engagement hole 33 at the tip. Therefore, the second extending portion 36 c moves in the axial direction integrally with the engagement plate 32.

  Since the swivel portion 36a is locked to the cylindrical block 34, the coil spring 36 is connected to the first extension portion 36b and the second extension portion 36c extending upward from the swivel portion 36a. When a pressing force is applied from the engagement plate 32, a spring reaction force is applied to them.

  Specifically, as shown in FIG. 2, when the shift pedal 25 is pushed down and an operation force in the compression direction is input to the input rod 31, the tip surface of the rod portion 31 c of the input rod 31 is the first surface. The extension part 36b is pressed forward, and then a reaction force acts on the input rod 31 from the first extension part 36b. At this time, the displacement of the input rod 31 is regulated by the first extending portion 36 b coming into contact with the stopper piece 37.

  As shown in FIG. 3, when the shift pedal 25 is pushed up and an operation force in the pulling direction is input to the input rod 31, the contact flange 31 a and the locking flange 32 a come into contact, and the engagement plate 32. An operating force in the direction of pulling backward acts on the. As a result, the distal end portion of the extending piece 32b of the engagement plate 32 presses the second extending portion 36c having a long extending length rearward, and at that time, the second extending portion 36c is moved to the input rod 31. Reaction force acts. At this time, the displacement in the direction of pulling rearward of the input rod 31 is restricted by the second extending portion 36 c coming into contact with the stopper piece 37.

Further, a displacement for detecting the relative displacement between the input side member 29 and the output side member 30 is located at a position facing the front surface of the locking flange 32a inside the cylindrical block 34 and a position facing the rear surface of the contact flange 31a. Microswitches 39A and 39B, which are detection sensors, are installed. One microswitch 39A is turned on when the input rod 31 is displaced forward (in the compression direction) from the reference position, and the other microswitch 39B is displaced rearward (in the pulling direction) from the reference position. When turned on.
Therefore, whether or not the shift pedal 25 is pressed down or pushed up can be detected by these micro switches 39A and 39B.
In this embodiment, the microswitches 39A and 39B are disposed below the central axis c in the cylindrical block 34.

  By the way, in the motorcycle according to this embodiment, when changing the gear stage of the transmission 20, the driver does not perform the clutch connecting / disconnecting operation or the accelerator returning operation, and the shift pedal 25 is operated up or down. A mechanism is provided that can change the gear position only by means of the above. In this mechanism, the controller determines whether the shift pedal 25 is operated up or down based on the detection results of the micro switches 39A and 39B of the speed change operation transmission device 28. When the controller determines that the shift pedal 25 has been operated up or down, the controller reduces the torque of the power transmission system in the transmission 20 by cutting off the ignition of the engine, etc. 25 is allowed to change the gear position (change in gear meshing).

The reaction force generating means 40 in this embodiment includes a coil spring 36 having a turning portion 36a and first and second extending portions 36b, 36c, a holding portion for the output side member 30 with respect to the turning portion 36a, It is mainly configured by a locking portion of the input side member 29 with respect to the second extending portions 36b and 36c.
In this embodiment, the transmission 20 includes a transmission operation shaft 23, an input arm 24, and a transmission operation transmission device 28 in addition to a transmission main body having a transmission mechanism.

  Further, in the shift operation transmission device 28 of this embodiment, the turning portion 36a of the coil spring 36 is disposed below the first and second extending portions 36b and 36c in the vehicle mounted state. . Furthermore, the shift operation transmission device 28 is disposed at a position below the pedal shaft 27 that is the operation portion of the shift pedal 25 in the vehicle mounted state.

  As described above, in the speed change operation transmission device 28 according to this embodiment, the turning portion 36a of the coil spring 36 is held by the output side member 30 in a posture orthogonal to the operation input direction of the input side member 29, and the coil spring 36, the first extending portion 36b and the second extending portion 36c can be locked to the input side member 29, and the first extending portion 36b and the second extending portion 36c of the coil spring 36 are provided. The reaction force in the pulling direction and the compressing direction can be applied between the input side member 29 and the output side member 30 by the elastic force acting on the. Therefore, by adopting this shift operation transmission device 28, it is possible to reduce the manufacturing cost and downsize the entire device.

  Further, since the transmission operation transmission device 28 according to this embodiment has different extension lengths of the first extension portion 36b and the second extension portion 36c of the coil spring 36, the operation load in the compression direction is different. The reaction force that is generated can be made different between when an operation load is input and when an operation load in the pulling direction is input. That is, when the same operation load is input, the reaction force generated in the second extension portion 36c having a long extension length is smaller than that in the first extension portion 36b having a short extension length. Become.

  In particular, in the shift operation transmission device 28 according to this embodiment, the second extending portion 36c that is pressed when the shift pedal 25 is pushed up is pressed when the shift pedal 25 is pushed down. It is formed longer than the first extending portion 36b on the side to be provided. For this reason, in this shift operation transmission device 28, the operating torque can be made smaller when the shift pedal 25 is pushed up, which is difficult for the driver to apply an operating load, than when the shift pedal 25 is pushed down. Therefore, the operability of the transmission 20 can be improved by adopting the shift operation transmission device 28.

  Further, in the speed change operation transmission device 28 according to this embodiment, the turning portion 36a of the coil spring 36 is disposed below the first and second extending portions 36b and 36c when mounted on the vehicle. Therefore, there is an advantage that the center of gravity of the speed change operation transmission device 28 is lowered and it is difficult to be unbalanced during operation. Therefore, according to the shift operation transmission device 28 according to this embodiment, a smooth operation can be always obtained.

  Furthermore, since the shift operation transmission device 28 according to this embodiment is disposed at a position lower than the pedal shaft 27 that is the operation portion of the shift pedal 25 in the vehicle mounted state, There is an advantage that the pedal shaft 27 and the driver's foot are less likely to interfere with the bulging portion 34 a and the like that covers the turning portion 36 a of the coil spring 36.

FIG. 4 is a partial cross-sectional side view of a part of a transmission that employs a shift operation transmission device 128 according to another embodiment of the present invention. In FIG. 4, the same parts as those in the above embodiment are denoted by the same reference numerals.
The speed change transmission device 128 according to another embodiment is basically the same as that of the above embodiment, except that the first extension portion 36c of the coil spring 36 is engaged with the first extension portion 36c. The difference is that the portion that can come into contact with the extending portion 36b is formed by the integrated input side block 131. Reference numeral 50 in the figure is a transmission rod for transmitting the compression side and tension side displacement of the input side block 131 to an intermediate position between the micro switches 39A and 39B.

  The speed change operation transmission device 128 according to the other embodiment can obtain substantially the same effect as the above embodiment, and the number of parts of the input side member 29 is reduced. The size of the apparatus can be reduced.

The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, in the above embodiment, the turning portion 36 a of the coil spring 36 is held by the output side member 30, and the first extending portion 36 b and the second extending portion 36 c of the coil spring 36 are connected to the input side member 29. Although it can be locked, conversely, the swivel portion 36 a is held by the input side member 29, and the first extension portion 36 b and the second extension portion 36 c can be locked to the output side member 30. You may do it.
In the above embodiment, the displacement detection sensor that detects the relative displacement between the input side member 29 and the output side member 30 is configured by the micro switches 39A and 39B. However, the displacement detection sensor is not limited to this, and for example, It may be configured by a proximity switch or the like.
Vehicles to which the present invention is applied are not limited to motorcycles (including motorbikes and scooter type vehicles), but also three-wheel vehicles (including front-wheel and rear-wheel vehicles as well as front-wheel and rear-wheel vehicles) or four-wheel vehicles. A small wheeled vehicle is also included.

20 ... Transmission 23 ... Transmission operation shaft (transmission operation section of transmission body)
25 ... Shift pedal 27 ... Pedal shaft (shift pedal operation part)
DESCRIPTION OF SYMBOLS 28 ... Transmission operation transmission device 29 ... Input side member 30 ... Output side member 36 ... Coil spring 36a ... Turning part 36b ... 1st extension part (extension part)
36c ... 2nd extension part (extension part)
39A, 39B ... Microswitch (displacement detection sensor)
40 ... Reaction force generating means

Claims (6)

An input side member (29) coupled to the shift pedal (25);
An output side member (30) coupled to a transmission operation portion (23) of the transmission main body;
Reaction force generating means (40) for applying a compression side reaction force and a tension side reaction force between the input side member (29) and the output side member (30);
Displacement detection sensors (39A, 39B) for detecting relative displacement between the input side member (29) and the output side member (30) against the reaction force of the reaction force generating means (40);
In a shift operation transmission device (28) for a saddle-ride type vehicle equipped with
The reaction force generating means (40) has a coil spring (36) provided with extending portions (36b, 36c) on one end side and the other end side of the swivel portion (36a), and the coil spring (36 The swivel part (36a) is locked to one of the input side member (29) and the output side member (30) in a posture intersecting the operation input direction of the input side member (29). The extension portions (36b, 36c) on one end side and the other end side of the coil spring (36) can be integrally displaced to either the input side member (29) or the output side member (30), respectively. A shift operation transmission device for a saddle-ride type vehicle characterized in that the transmission operation device is engaged with the vehicle.   The extension part (36b) on one end side of the coil spring (36) and the extension part (36c) on the other end side have different extension lengths from the turning part (36a). The shift operation transmission device for a saddle-ride type vehicle according to claim 1.   Of the extension portion (36b) on one end side of the coil spring (36) and the extension portion (36c) on the other end side, the side that is pressed when the shift pedal (25) is pushed up. The extension part (36c) is formed longer than the extension part (36b) on the side that is pressed when the shift pedal (25) is pushed down. Transmission operation transmission device for saddle riding type vehicles.   The swivel portion (36a) of the coil spring (36) is disposed below the extending portion (36b, 36c) in a vehicle mounted state. The gear shift operation transmission device for a saddle-ride type vehicle according to claim.   The said input side member (29) and the output side member (30) are arrange | positioned below the operation part of the said shift pedal (25) in the vehicle mounting state. Transmission operation transmission device for saddle riding type vehicles.   A transmission for a saddle-ride type vehicle, comprising the shift operation transmission device according to any one of claims 1 to 5.

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