Sensor arrangement structure of pedal device

Abstract

To provide a sensor arrangement structure for a pedal apparatus which ensures a rod length that transmits operation force, and which facilitates the arrangement of an operation sensor to the rod.SOLUTION: A sensor arrangement structure for a pedal apparatus includes: a shift pedal 35 which has a pedal main body 35c placed at the front side of a step 37, and which is rotatable around a pedal rotation shaft 36; a shift rod 50 coupled to the shift pedal 35; and an operation input shaft 45 coupled to the shift pedal 35 via the shift rod 50 so as to be operated in conjunction therewith. The shift rod 50 includes an operation sensor 52 that detects an operation given to the shift pedal 35. The pedal rotation shaft 36 is supported at the tip side of a bracket (a combined body of a pedal bracket 39 with a step bracket 38) that extends in the back-and-forth direction. The pedal rotation shaft 36 is placed at the front side relative to the step 37. The operation input shaft 45 is placed at the rear side relative to the step 37. The shift rod 50 extends in the back-and-forth direction along the pedal bracket 39.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a sensor arrangement structure for a pedal device. [Background technology]

[0002] In a conventional sensor arrangement structure for a pedal device in which a shift rod connected to a shift pedal of a motorcycle is equipped with a shift stroke sensor (operation sensor) for detecting shift operations, in order to ensure a location for the shift rod including the shift stroke sensor, the sensor body of the shift stroke sensor is arranged in a position that does not overlap with the pivot frame in a side view, and the rod part without the sensor body is arranged in a position that overlaps with the pivot frame in a side view (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-072967 Summary of the Invention [Problem to be solved by the invention]

[0004] In the conventional configuration described above, the footpegs and shift pedal are positioned rearward of the pivot frame, while the shift spindle of the transmission is positioned forward of the pivot frame. This makes it easier to provide a shift stroke sensor on the shift rod because the distance between the shift pedal and the shift spindle is large. However, for example, in the case of a vehicle in which the footpegs and shift pedal are located forward of the pivot frame (such as a cruiser-type vehicle), the distance between the shift pedal and the shift spindle is small, making it difficult to provide a shift stroke sensor on the shift rod. If the link length or angle of the link mechanism that links the shift pedal and the shift spindle is changed in order to increase the distance between the shift pedal and the shift spindle, there is a risk that the link mechanism will become larger and that a loss in the transmission of operating force will occur.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a sensor arrangement structure for a pedal device that ensures the length of the rod that transmits the operating force and makes it easy to arrange an operation sensor on the rod. [Means for solving the problem]

[0006] As a means for solving the above-mentioned problems, a first aspect of the present invention provides a sensor arrangement structure for a pedal device, the sensor arrangement structure comprising: a step (37) on which a driver of a saddle-ride type vehicle (1) places his / her foot; an operation pedal (35) having a pedal body (35c) disposed in front of the step (37) and rotatable about a pedal rotation shaft (36); a rod (50) connected to the operation pedal (35); and an operation input shaft (45) connected to the operation pedal (35) via the rod (50) so as to be interlocked with the operation pedal (35), the rod (50) including an operation sensor (52) that detects operation of the operation pedal (35); the pedal rotation shaft (36) is supported on the tip end side of brackets (38, 39) extending in the front-rear direction; the pedal rotation shaft (36) is disposed forward of the step (37); and the operation input shaft (45) is disposed rearward of the step (37); The rod (50) extends in the front-rear direction along the brackets (38, 39) and provides a sensor arrangement structure for the pedal device. With this configuration, the rod extends in the front-to-rear direction between the pedal rotation shaft in front of the step and the operation input shaft in the rear of the step, making it easier to ensure the rod length and to arrange the sensor. By arranging the rod and sensor along the arm of the bracket, the vertical width of the arrangement space for the rod, sensor, and bracket can be reduced, and the rod, sensor, and bracket can be easily attached later.

[0007] A second aspect of the present invention is the first aspect described above, comprising a body frame (20) and a power unit (10A) mounted on the body frame (20) and including a prime mover (10) for driving the vehicle, wherein the power unit (10A) comprises a unit cover (32) attached to the side of the power unit (10A) on the operating pedal (35) side in the left-right direction, the unit cover (32) comprising a bulge portion (32a) that bulges outward in the vehicle width direction, and the operation sensor (52) is arranged below the bulge portion (32a). According to this configuration, the operation sensor is disposed below the bulging portion of the unit cover of the power unit that bulges outward in the vehicle width direction, allowing the operation sensor to be efficiently disposed in the empty space below the bulging portion. The bulging portion protects the operation sensor from above and the sides.

[0008] A third aspect of the present invention is the second aspect, wherein the unit cover (32) is provided with a recess (34b) recessed inward in the vehicle width direction below the bulge portion (32a), and the operation sensor (52) is arranged below the bulge portion (32a) and to the side of the recess (34b). According to this configuration, by providing a recess that is recessed inward in the vehicle width direction below the bulging portion of the unit cover, it is possible to expand the space below the bulging portion and make it easier to fit the operation sensor. By expanding the installation space for the operation sensor, it is possible to ensure movement space for the operation sensor and rod, and to prevent the operation sensor from protruding outward in the vehicle width direction.

[0009] In a fourth aspect of the present invention, in any one of the first to third aspects, the operation sensor (52) is arranged on the inner side of the brackets (38, 39) in the vehicle width direction. With this configuration, by arranging the operation sensor on the inner side of the bracket in the vehicle width direction (for example, by arranging them so that they overlap in a side view), the operation sensor can be arranged compactly without protruding outward in the vehicle width direction. By arranging the operation sensor and the bracket so that they overlap in a side view, the bracket can protect the operation sensor from the outside in the vehicle width direction.

[0010] A fifth aspect of the present invention is the fourth aspect, wherein the operation sensor (52) is arranged so as to overlap with the step (37) in a side view. With this configuration, the operation sensor is positioned so that it overlaps with the step in a side view, allowing the operation sensor to be positioned compactly in a side view. By positioning the operation sensor on the inside of the driver's foot (step) in the vehicle width direction, the operation sensor does not get in the way when the driver operates the pedal, and the operation sensor can be protected by the step.

[0011] A sixth aspect of the present invention is any one of the first to fifth aspects, comprising: a body frame (20); and a power unit (10A) mounted on the body frame (20) and including a prime mover for propelling the vehicle, wherein the body frame (20) comprises a head pipe (21), a main frame (22) extending downward and rearward from the head pipe (21), a pivot plate (24a) extending from a rear portion of the main frame (22) below the power unit (10A), and a down tube (23) extending downward and rearward from the head pipe (21) to support a front portion of the power unit (10A), and the operation sensor (52) and the brackets (38, 39) extend in the fore-and-aft direction of the vehicle at a position forward of the pivot plate (24a) and rearward of the down tube (23). With this configuration, the operation sensor and bracket extend in the fore-and-aft direction of the vehicle between the pivot plate and the lower rear end of the down tube, making it easier to ensure space for arranging the operation sensor and bracket. In other words, if the pivot plate and the lower rear end of the down tube are separated and no frame member is provided between them, the operation sensor and bracket are prevented from protruding outward in the vehicle width direction, and the vertical dimension of the space required for arranging the operation sensor can be reduced. When the operation sensor is arranged below the bulge of the unit cover, the operation sensor is arranged substantially horizontally below the bulge, making it possible to effectively utilize the space below the bulge.

[0012] A seventh aspect of the present invention is any one of the first to sixth aspects, comprising a body frame (20) and a power unit (10A) mounted on the body frame (20) and including a prime mover for propelling the vehicle, wherein the body frame (20) comprises a head pipe (21), a main frame (22) extending downward and rearward from the head pipe (21), and a pivot plate (24a) extending from a rear portion of the main frame (22) downwardly of the power unit (10A), and the brackets (38, 39) are supported by the pivot plate (24a), and comprise a step bracket (38) extending forward of the pivot plate (24a) to support the step (37), and a pedal bracket (39) extending forward from the step bracket (38) to support the operating pedal (35). According to this configuration, the bracket comprises a step bracket extending forward of the pivot plate and a pedal bracket extending further forward from the step bracket, and by supporting the operating pedal with this pedal bracket, space is secured in the longitudinal direction (front-to-back direction) of the rod and the operating sensor, thereby improving the design freedom of the link mechanism including the rod between the operating pedal and the operating input shaft.

[0013] An eighth aspect of the present invention is the seventh aspect, wherein the pedal bracket (39) is a member provided separately from the step bracket (38), the pedal bracket (39) is supported on the inner side of the step bracket (38) in the vehicle width direction, and the operation sensor (52) is arranged along the pedal bracket (39) and extends in the fore-and-aft direction of the vehicle together with the pedal bracket (39). With this configuration, the operation sensor extends in the fore-and-aft direction of the vehicle together with the pedal bracket, and the pedal rotation shaft is positioned forward and away from the step, improving the design flexibility of the operation pedal. By supporting the pedal bracket on the inner side of the step bracket in the vehicle width direction, the pedal rotation shaft side of the operation pedal is positioned on the inner side in the vehicle width direction, so only the pedal body (tread portion) can be positioned in front of the step, making it easier to operate the pedal. By positioning the operation sensor and bracket together on the inner side in the vehicle width direction, they can be positioned compactly and approximately parallel to each other.

[0014] A ninth aspect of the present invention is any one of the first to eighth aspects, wherein the pedal rotation shaft (36) is arranged below a tangent line (t1) between an upper surface (37a) of the step (37) and an upper surface (35e) of the pedal body (35c) of the operating pedal (35) in a side view. According to this configuration, by positioning the pedal rotation shaft below the tangent line between the step upper surface and the pedal upper surface, when the driver places their foot on the step upper surface and the pedal upper surface, the pedal rotation shaft is less likely to come into contact with the sole of the foot (sole), thereby improving pedal operability.

[0015] A tenth aspect of the present invention is the ninth aspect, wherein the operation sensor (52) is disposed below the tangent line (t1). According to this configuration, by positioning the operation sensor below the tangent line between the top surface of the step and the top surface of the pedal, when the driver places their foot on the top surface of the step and the top surface of the pedal, the operation sensor is less likely to come into contact with the sole of the foot (sole), thereby improving pedal operability.

[0016] An eleventh aspect of the present invention is the seventh aspect, wherein the operation sensor (52) is provided with a harness connection portion (52a) to which a harness (52b) that transmits a signal from the operation sensor (52) to the outside is connected, and the harness connection portion (52a) is arranged so as to overlap with the step bracket (38) in a side view. According to this configuration, the harness connection portion of the operation sensor overlaps with the step bracket in a side view, and the harness connection portion is disposed on the inner side of the step bracket in the vehicle width direction, thereby protecting the harness connection portion.

[0017] A twelfth aspect of the present invention is a vehicle according to any one of the first to eleventh aspects, comprising a body frame (20) and a power unit (10A) mounted on the body frame (20) and including a prime mover (10) for running the vehicle, wherein the power unit (10A) comprises a unit cover (32) attached to a side portion on the side of the operation pedal (35) in the left-right direction, and an output shaft (42) that outputs driving force for running the vehicle, and the output shaft (42) is disposed above the operation sensor (52), and the unit cover (32) comprises a side cover (57) that covers the output shaft (42) from the outside in the vehicle width direction, and a harness locking portion (58) that supports a harness (52b) connected to the operation sensor (52) on the inside in the vehicle width direction of the side cover (57). According to this configuration, the side cover covering the output shaft in the unit cover is provided with a harness locking portion that supports the harness leading to the operation sensor, allowing the harness to be routed inside the side cover while reliably isolating the harness from the output shaft and reducing deterioration of the harness.

[0018] A thirteenth aspect of the present invention is the twelfth aspect, wherein the harness (52b) extends upward from the operation sensor (52), passing through the vehicle width direction outer side of the operation input shaft (45), and is passed inside the side cover (57). With this configuration, the harness extends upward passing outside the operating input shaft in the vehicle width direction and is routed inside the side cover, thereby preventing the harness from interfering with the rotation of levers and the like that rotate together with the operating input shaft until it reaches the harness locking portion of the side cover.

[0019] A fourteenth aspect of the present invention is any one of the first to thirteenth aspects, wherein the operation sensor (52) is located above the lowest end of the brackets (38, 39). According to this configuration, the operation sensor is positioned above the lowest end of the bracket, so that the operation sensor can be protected from disturbances from below. [Effects of the Invention]

[0020] According to the present invention, it is possible to provide a sensor arrangement structure for a pedal device that ensures the length of the rod that transmits the operating force and makes it easy to arrange the operation sensor on the rod. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a left side view of a motorcycle according to an embodiment of the present invention. [Figure 2] FIG. 2 is a left side view of a main part of the motorcycle. [Figure 3] FIG. 2 is a left side view of the shift pedal device of the motorcycle. [Figure 4] FIG. 2 is a front view of the shift pedal device and its surroundings. [Figure 5] FIG. 2 is a top view of the shift pedal device and its surroundings. [Figure 6] 6 is a cross-sectional view taken along the line VI-VI in FIG. 2, showing the area around the shift pedal. [Figure 7] FIG. 10 is a left side view corresponding to FIG. 2, showing a modified example of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, directions such as front, rear, left, and right are the same as directions in the vehicle described below unless otherwise specified. In addition, in the drawings used in the following description, an arrow FR indicating the front of the vehicle, an arrow LH indicating the left side of the vehicle, an arrow UP indicating the top of the vehicle, and a line CL indicating the center of the vehicle body to the left and right are shown in appropriate positions. The term "middle" used in this embodiment refers not only to the center between both ends of an object, but also to the range inside the both ends of the object.

[0023] The motorcycle (saddle-ride type vehicle) 1 shown in Figure 1 is a cruiser type vehicle with a low and long body. The front wheel 2 of the motorcycle 1 is supported at the lower ends of a pair of left and right front forks 3 that are inclined at the front of the body so that their upper parts are toward the rear. The upper parts of the left and right front forks 3 are supported at the front end of a body frame 20 via a steering stem 4. A bar handle 5 for steering is attached to the upper part of the steering stem 4.

[0024] A rear wheel 7 of the motorcycle 1 is supported at the rear end of a swing arm 8 that extends fore and aft from the underside of the rear of the vehicle body. The front end of the swing arm 8 is supported at the underside of the rear of the vehicle body frame 20 so that it can swing up and down. The rear wheel 7 is connected to a power unit 10A that includes an engine (internal combustion engine) 10 that is the prime mover of the motorcycle 1 via a chain-type transmission mechanism 6 that is located, for example, on the left rear side of the vehicle body. The lower ends of a pair of left and right rear cushions 9 are connected to the rear ends of the left and right arms of the swing arm 8.

[0025] Referring also to Figure 2, power unit 10A is mounted inside body frame 20. Power unit 10A includes engine 10 having a crankshaft (only the central axis of rotation (axis) C1 is shown) extending along the vehicle width direction (left-right direction), and transmission 40 provided integrally at the rear of engine 10. Engine 10 has cylinder 12 standing upright above the front part of crankcase 11. The rear part of crankcase 11 serves as a transmission case that houses transmission 40.

[0026] Referring also to FIG. 6, for example, transmission 40 is an existing stepped transmission that includes a main shaft and a countershaft (the countershaft and its rotational axis are denoted by reference numerals 42 and C3, respectively) whose rotational axes are parallel to the rotational axis C1 of the crankshaft, as well as a group of transmission gears 43 that straddles both of these shafts. Countershaft 42 of transmission 40 constitutes the output shaft of transmission 40 and therefore of power unit 10A. The left end of countershaft 42 protrudes outside of crankcase 11 at the rear left side of the case. A drive sprocket 6a of chain-type power transmission mechanism 6 is attached to the left end of countershaft 42 that protrudes outside the case. A drive chain 6c is wound around drive sprocket 6a and a driven sprocket 6b attached to the left side of the hub of rear wheel 7, thereby forming chain-type power transmission mechanism 6.

[0027] A change mechanism (not shown) that switches gear positions in the transmission 40 is housed in the rear of the crankcase 11. The change mechanism operates a plurality of shift forks by rotation of a shift drum that is parallel to both shafts of the transmission 40, thereby switching between gear pairs used to transmit power between both shafts in the transmission gear group 43. The change mechanism is operated by operation of a shift pedal (operation pedal) 35. The change mechanism is equipped with a shift spindle 45 that serves as an operation input shaft to which an external operating force is input. The shift spindle 45 extends in the left-right direction parallel to both shafts of the transmission 40, with its left end protruding outside the case on the rear left side of the crankcase 11. The left end of the shift spindle 45 that protrudes outside the case is input, for example, via a link mechanism 55, to the left end of the shift spindle 45 that protrudes outside the case when the driver swings the shift pedal 35. When the shift spindle 45 is rotated by swinging the shift pedal 35, the shift drum and the shift fork are actuated to switch the gear pair capable of transmitting power in the transmission gear group 43 (that is, the gear stage is changed).

[0028] The crankcase 11 is divided into left and right case halves, for example, at the center of the vehicle body (left and right sides only, denoted by the reference numeral 31). A left case cover (unit cover) 32 is attached to the outside of the left case half 31 in the vehicle width direction. The left case cover 32 forms an ACG cover (bulge) 32a that covers an alternating current generator (ACG) 33 that is coaxially supported on the left side of the crankshaft. The ACG cover 32a has a bottomed cylindrical shape that bulges outward in the vehicle width direction relative to the remaining portion of the left case cover 32. Although not shown, a right case cover is attached to the outside of the right case half in the vehicle width direction. The right case cover forms a clutch cover that covers a clutch located outside the right case half in the vehicle width direction.

[0029] An intake passage 13 including a throttle body is connected to the rear of a cylinder head 12a of the cylinder 12. A base end of an exhaust pipe 14 is connected to the front of the cylinder head 12a. The exhaust pipe 14 curves downward in front of the engine 10, then curves rearward, and extends rearward below the engine 10. The rear end of the exhaust pipe 14 is connected to an exhaust muffler 14a located, for example, on the right rear side of the vehicle body.

[0030] A fuel tank 15 that stores fuel for the engine 10 is disposed above the engine 10. A seat 16 on which the driver sits is disposed behind the fuel tank 15. A pair of left and right steps 37 on which the driver places his or her feet are disposed on both the left and right sides below the front of the seat 16. Auxiliary equipment 17 such as an air cleaner are disposed behind the fuel tank 15 and below a front part 16b of the seat 16, and are covered by body side covers 18. Although the motorcycle 1 shown in FIG. 1 does not have a seat or steps for a rear passenger, it may have such a configuration.

[0031] The body frame 20 is formed by joining multiple types of steel materials together by welding, etc. The body frame 20 includes a head pipe 21 located at the front end and supporting the steering stem 4, a pair of left and right main frames 22 branching off to the left and right from the upper rear side of the head pipe 21 and extending downward and rearward in a side view, a pair of left and right down tubes (down frames) 23 branching off to the left and right from the lower rear side of the head pipe 21 and extending rearward and downward at a steeper incline than the main frames 22 in a side view, a pivot frame 24 extending downward from the rear ends of the left and right main frames 22 and including a pair of pivot plates 24a at the vertical intermediate portion that support the front end of the swing arm 8, and a rear frame 25 having its front end joined to the upper rear parts of the left and right main frames 22 and extending rearward.

[0032] The main frame 22 and the down tube 23 are each formed from a round steel pipe. A plurality of gusset pipes are installed between the front portions of the left and right main frames 22 and down tubes 23 on the same side to form a truss structure. A hanger bracket 23a is provided at the lower end of the down tube 23 to support the front end portion of the crankcase 11. The rear end portion of the crankcase 11 is appropriately supported by a pivot plate 24a.

[0033] A curved portion 22a and a front lower inclined portion 22b, which form part of the pivot frame 24, are formed continuously at the rear lower portion of the rear end of the main frame 22. The curved portion 22a is connected to the rear lower portion of the rear end of the main frame 22 and curves in an arc that convex rearward in side view. The front lower inclined portion 22b is connected to the front lower portion of the front lower end of the curved portion 22a and extends in a straight line front lower in side view, reaching the pivot frame 24 and ultimately the lower end of the body frame 20. A stand bracket 26 that supports a side stand 26a is fixed to the lower end of the left pivot frame 24.

[0034] A pivot plate 24a having a generally crescent shape in side view is joined to the front side (inner peripheral side) of the curved portion 22a and the front lower inclined portion 22b. A pivot support portion 24b that supports the swing shaft (pivot shaft 8a) of the swing arm 8 is provided on the front side of the vertically middle portion of the pivot plate 24a. The pivot plate 24a is formed by press molding or casting of a steel plate, for example. The pivot plate 24a, the curved portion 22a, and the front lower inclined portion 22b form a pivot frame 24.

[0035] 3 to 5, a shift pedal 35 is disposed in front of the left step 37, allowing the occupant (driver) to change gears with their left foot. The shift pedal 35 is supported on the vehicle body (the vehicle body frame 20, the power unit 10A, or a component fixed thereto) so as to be rotatable about a pedal rotation shaft 36 extending along the left-right direction. The shift pedal 35 includes a base 35a supported on the pedal rotation shaft 36, an arm 35b extending forward of the base 35a, and a pedal body (tread portion) 35c extending outward in the vehicle width direction from the front end of the arm 35b. The pedal body 35c is positioned so as to overlap the step 37 in the left-right direction, and can be stepped on or pushed up with the foot placed on the step 37. The arm 35b has a plate shape that is approximately perpendicular to the vehicle width direction, and is disposed in a position that avoids the step 37 on the inner side in the vehicle width direction. By forming arm portion 35b in a plate shape with its thickness oriented in the vehicle width direction, interference with the foot operating pedal body 35c can be avoided.

[0036] The base 35a, located at the rear end of the arm 35b of the shift pedal 35, has the pedal rotation shaft 36 rotatably inserted therethrough or is rotatable integrally with the pedal rotation shaft 36. A first lever 35d is provided below the base 35a so as to be rotatable integrally therewith. The first lever 35d rotatably connects the front end of a shift rod 50, which extends in the front-to-rear direction. The rear end of the shift rod 50 is rotatably connected to a second lever 45b attached to the shift spindle 45. A link mechanism 55 including these levers 35d, 45b and the shift rod 50 transmits gear shift operations to the shift pedal 35 to the shift spindle 45.

[0037] 3, shift rod 50 includes a main body (sensor main body) of shift stroke sensor 52, rod portion 51 as a rigid member, and joint portions 53, 54 rotatably connected to each of levers 35d, 45b of shift pedal 35 and shift spindle 45. The connection portion between rod portion 51 and at least one of joint portions 53, 54 (front joint portion 53 in the figure) is connected by a combination of a threaded shaft and a nut hole, and by using a lock nut, the length of shift rod 50 can be adjusted (the position of pedal body 35c can be adjusted by adjusting the length).

[0038] 2, in this embodiment, the crankshaft center C1 is located above and in front of the step 37 in a side view, and the output shaft center C3 is located above and behind the step 37. In a side view, the front-to-rear center of the footrest surface (step upper surface 37a) of the step 37 is located below the intermediate portion between the crankshaft center C1 and the output shaft center C3. The crankshaft center C1, the output shaft center C3, and the front-to-rear center of the step upper surface 37a are arranged so as to form a roughly inverted equilateral triangle in a side view.

[0039] The shift spindle 45 is located below the countershaft 42 and above and rear of the step 37 in a side view. The shift spindle 45 is located forward of the pivot frame 24 and close to the step 37 in a side view. For example, if the rotation shaft (pedal rotation shaft 36) of the shift pedal 35 is located coaxially or nearly coaxially with the step 37, the shift link mechanism 55 that transmits shift operations between the shift pedal 35 and the shift spindle 45 will be made smaller. If a shift stroke sensor 52 is located on the shift rod 50, the diameter and length will be larger than a normal shift rod 50 without a sensor, so if the link mechanism 55 including the shift rod 50 is small, it will be difficult to install the shift stroke sensor 52. "Coaxial with the step 37" refers to an axis (including a virtual axis) along the vehicle width direction that overlaps with the step 37 in a side view.

[0040] It is possible to expand the arrangement space for the shift rod 50 by, for example, modifying the levers 35d, 45b of the shift pedal 35 and the shift spindle 45, but this raises the following issue: In order to efficiently transmit the operating load to the shift stroke sensor 52 (maintain good sensor sensitivity), it is desirable to arrange the shift rod 50 and the shift stroke sensor 52 on the tangents to the two circles formed by the rotation trajectories of the levers 35d, 45b. However, if an attempt is made to maintain sensor sensitivity while expanding the rod arrangement space, the levers 35d, 45b will become unnecessarily large, reducing the degree of freedom in arrangement relative to the vehicle body.

[0041] In this embodiment, to ensure space for arranging the shift stroke sensor 52, the pedal bracket 39 extends forward from the step bracket 38, and the pedal pivot shaft 36 is positioned in front of and spaced apart from the step 37. As a result, the pedal pivot shaft 36 and the first lever 35d of the shift pedal 35 are positioned forward of the step 37, and the shift spindle 45 and the second lever 45b are positioned rearward of the step 37. Therefore, the length of the shift rod 50 spanning between the first lever 35d and the second lever 45b is ensured, making it easier to position the shift stroke sensor 52.

[0042] The shift stroke sensor 52 is an existing sensor that detects the compressive and tensile load in the axial direction of the shift rod 50, which is a push-pull rod. The shift stroke sensor 52 can be a pressure sensor, a strain sensor, or any other type. The shift stroke sensor 52 is used, for example, in a so-called quick shifter that enables gear changes by operating only the shift pedal 35 without the need for clutch operation, and is also used to assist gear changes and as an operation switch for various actuators.

[0043] Furthermore, in this embodiment, the pedal bracket 39, shift pedal 35, shift rod 50, and shift stroke sensor 52 are disposed in a space below the bulge (ACG cover 32a) of the left case cover 32 and outside the oil pan 34 in the vehicle width direction. An outer end 32a1 of the ACG cover 32a is located at the outermost position on the left side of the engine 10. At least a portion (in this embodiment, the entirety) of the shift stroke sensor 52 is disposed more inward in the vehicle width direction than the outer end 32a1 of the ACG cover 32a. The shift stroke sensor 52 is partially disposed more inward in the vehicle width direction than the outer surface of the pivot plate 24a. At least a portion (in this embodiment, the entirety) of the shift stroke sensor 52 is disposed within the vertical width h1 of the oil pan 34.

[0044] The outer end (outer wall 34a) of the oil pan 34 is located inward in the vehicle width direction relative to the outer end 32a1 of the ACG cover 32a, and forms an outer wall that extends in the vertical direction. The outer end of the oil pan 34 forms a recess 34b that is recessed inward in the vehicle width direction relative to the outer end 32a1 of the ACG cover 32a. This recess 34b widens the space below the ACG cover 32a (recess 34b), making it easier to arrange the shift stroke sensor 52 and the like, and also prevents the ACG cover 32a from protruding outward in the vehicle width direction.

[0045] In the embodiment, the lower part of the crankcase 11 of the engine 10 is referred to as the "oil pan." This is the name used for the part into which engine oil flows, and is also referred to as the "oil pan" for, for example, a dry sump engine or an engine having a sealed crankcase. In the case of the power unit 10A in which the prime mover is an electric motor, the structure replacing the "oil pan" is referred to as the "lower part of the unit case." Furthermore, the structure that houses the motor control parts and the reducer replacing the "ACG cover" is referred to as the "bulge portion."

[0046] The shift stroke sensor 52 is disposed on the inner side in the vehicle width direction of the pedal bracket 39 and the step bracket 38. This allows the shift stroke sensor 52 to be disposed compactly without protruding outward in the vehicle width direction. The portion of the front end of the pedal bracket 39 including the pedal pivot shaft 36 is positioned more inward in the vehicle width direction than the outer end face of the step bracket 38 to avoid interference with the foot placed on the step 37.

[0047] The shift stroke sensor 52 is arranged so as to overlap with the step 37 in a side view. More specifically, it is arranged so as to overlap with the base 37c of the step 37 and the front portion of the step bracket 38 (particularly the retaining portion 38c) in a side view. This makes the shift stroke sensor 52 less noticeable in a side view, achieving a compact arrangement of the shift stroke sensor 52. It also makes it less likely that external disturbances from outside in the vehicle width direction will reach the shift stroke sensor 52. The base 37c of the step 37 is a portion that is connected to the inside in the vehicle width direction of the step main body 37b that forms the step upper surface 37a, and is held by the front portion (retaining portion 38c) of the step bracket 38.

[0048] In a side view, the base 37c of the step 37 and the retaining portion 38c of the step bracket 38 have an inclined rectangular shape with the front and rear sides aligned with the step pivot shaft 38d, which is inclined forward relative to the vertical. The base 37c of the step 37 and the retaining portion 38c of the step bracket 38 have their lower corners in a side view that protrude downward from the cylindrical shift stroke sensor 52, which extends substantially horizontally in the front-to-rear direction. This prevents external disturbances from reaching the shift stroke sensor 52 from below. The shift stroke sensor 52 is located above the underside of the crankcase 11 (oil pan 34) in a side view, which also prevents external disturbances from reaching the shift stroke sensor 52 from below.

[0049] Shift stroke sensor 52 is disposed inward in the vehicle width direction from step 37 and step bracket 38. This makes it less likely that shift stroke sensor 52 will get in the way (will be less likely to come into contact with the foot operating the pedal) when the driver operates the pedal with their foot placed on step 37, improving the operability of shift pedal 35. The shift stroke sensor 52 and each bracket extend in the fore-and-aft direction of the vehicle (with their respective extension directions being approximately parallel) in a range forward of the pivot plate 24a and rearward of the lower rear end portion (hanger bracket 23a) of the down tube 23.

[0050] Here, in the embodiment, "along the (A) direction" means that the extension direction, longitudinal direction, and axial direction of the target part coincide with the (A) direction or are within a range of ±45 degrees relative to the (A) direction. Step bracket 38 has crank-shaped bent portion 39a, which is displaced in the vehicle width direction in plan view, forward of front bolt 39b1. Bent portion 39a serves as the starting point for bending when an external force is applied in the vehicle width direction, thereby reducing load input to peripheral components of step bracket 38 and ultimately damage to the peripheral components.

[0051] In the body frame 20 of this embodiment, the down tube 23 and the pivot plate 24a are separated from each other in the front and rear with no frame member between them, making it easy to ensure space for arranging the shift stroke sensor 52 and the bracket. This prevents the shift stroke sensor 52 and the bracket from protruding outward in the vehicle width direction, and also reduces the vertical dimension of the space for arranging the shift stroke sensor 52.

[0052] The body frame 20 of the embodiment is a so-called diamond frame in which the down tube 23 and the pivot plate 24a are separate and have no frame member (under-tube) between them, which makes it easier to ensure space for arranging the shift stroke sensor 52 and the bracket, but is not limited to this configuration. For example, it may be a cradle frame in which the down tube 23 and the pivot plate 24a are connected via an under-tube.

[0053] The step 37 is supported on the front end of a step bracket 38 that extends forward of the pivot plate 24a. The step bracket 38 includes a first arm portion 38a extending forward from the lower end of the pivot plate 24a, a second arm portion 38b extending forward and downward from a vertically intermediate portion of the pivot plate 24a above the first arm portion 38a, and a retaining portion 38c having a rectangular shape in a side view. The retaining portion 38c connects the front ends of the first arm portion 38a and the second arm portion 38b and retains a base portion 37c (inner portion in the vehicle width direction) of the step 37. The rear ends of the arms 38a and 38b are fastened and fixed to the pivot plate 24a with bolts extending along the vehicle width direction. The retaining portion 38c supports a step rotation shaft 38d that spans the upper and lower wall portions, which are inclined downward toward the front. The base portion 37c of the step 37 is rotatably held by the retaining portion 38c via the step rotation shaft 38d. The step 37 stops rotating downward when in an in-use position protruding outward in the vehicle width direction, and can rotate upward and rearward from the in-use position.

[0054] The step bracket 38 extends diagonally outward from the outer surface of the pivot plate 24a and then curves forward to surround the area from the rear to the outside of the shift stroke sensor 52.

[0055] The pedal bracket 39 is fixed (fastened) to the inside of the front part of the step bracket 38 in the vehicle width direction by a plurality of bolts 39b1, 39b2 (two points in this embodiment) aligned in the front-to-rear direction. In this embodiment, the pedal bracket 39 is fastened by the front bolt 39b1 on an axis that overlaps with the step main body 37b in a side view, and is fastened by the rear bolt 39b2 behind it. The bolt insertion hole of one of the two fixing points (for example, the rear side) is an elongated hole that is long in the pitch direction of the two fixing points.

[0056] The pedal bracket 39 is shaped like a plate that is approximately perpendicular to the vehicle width direction and extends forward of the step bracket 38 while bending appropriately in the vehicle width direction. The rotation shaft of the shift pedal 35 is supported on the front end of this pedal bracket 39. By extending the pedal bracket 39 further forward from the step bracket 38, space is secured in the length direction (front-to-rear direction) of the shift rod 50 and the shift stroke sensor 52. By making the pedal bracket 39 shaped like a plate with its thickness oriented in the vehicle width direction, interference with the foot that operates the shift pedal 35 is reduced.

[0057] Although the pedal bracket 39 in the embodiment is provided separately from the step bracket 38, they may be provided integrally. Although the step bracket 38 in the embodiment extends from the pivot plate 24a, this configuration is not limiting. For example, in the case of a cradle frame, the step bracket may be a bracket extending from the down tube 23. The step bracket is not limited to extending from the body frame 20, and may be a bracket extending from the power unit 10A. The step bracket 38 may have any form as long as it has the function of supporting the step 37 and the function of shielding the shift stroke sensor 52 from the outside in the vehicle width direction.

[0058] 2 and 3 indicates a tangent line extending from the step upper surface 37a to the upper surface of the pedal body 35c of the shift pedal 35 (pedal upper surface 35e, tread surface) in a side view. The pedal pivot shaft 36 is positioned so that its entirety is located below the tangent line t1. The link mechanism 55, including the shift stroke sensor 52, is also positioned entirely below the tangent line t1. This makes it less likely that mechanical components such as the pedal pivot shaft 36 and the shift stroke sensor 52 will come into contact with the driver's foot when the driver places his or her foot on the step 37a and the pedal upper surface 35e, improving the operability of the shift pedal 35. In addition, the rotation axis position (stand bracket 26) of the side stand 26a is located rearward and below the shift stroke sensor 52, preventing the foot from hitting the shift stroke sensor 52 when operating the stand.

[0059] 6 shows an example in which the link mechanism 55 including the shift stroke sensor 52 is positioned entirely above the tangent line t1. In this configuration, the pedal rotating shaft 36 and the first lever 35d of the shift pedal 35 are positioned forward of the step 37, and the shift spindle 45 and the second lever 45b are positioned rearward of the step 37. Therefore, the length of the shift rod 50 spanning between the first lever 35d and the second lever 45b is secured, and space for arranging the shift stroke sensor 52 is secured.

[0060] Of the left and right case covers that cover the left and right sides of the power unit 10A, the left case cover 32 that covers the shift pedal 35 side (left side) is fitted with a sprocket cover (side cover) 57 that covers the left end of the countershaft 42 and the periphery of the drive sprocket 6a from the outer side (left side) in the vehicle width direction. The sprocket cover 57 is provided between the rear end of the ACG cover 32a and the front end of the pivot plate 24a. The sprocket cover 57 is formed so that it widens towards the rear in a side view. A front portion 57a ​​of the sprocket cover 57 is displaced outward in the left-right direction so that its height is equal to that of the outer portion of the ACG cover 32a. A rear portion 57b of the sprocket cover 57 is displaced inward in the left-right direction so that its height is equal to that of the outer portion of the pivot plate 24a.

[0061] A harness locking portion 58 that supports the harness 52b connected to the shift stroke sensor 52 is provided on the inside of the front portion 57a ​​of the sprocket cover 57 in the vehicle width direction. The harness locking portion 58 includes a standing wall 58a that rises outward in the vehicle width direction from the inner surface of the cover body at the front portion 57a ​​of the sprocket cover 57, and an inner wall 58b that bends forward and extends from the inner edge of the standing wall 58a. The harness locking portion 58 holds the harness 52b in a space 58c that is surrounded on three sides by the cover body, the standing wall 58a, and the inner wall 58b in a plan view. The harness locking portion 58 secures the harness 52b with a locking member 58d such as a clip, separating the harness 52b from the countershaft 42 and the drive sprocket 6a. The harness locking portion 58 receives the harness 52b extending upward and rearward of the shift stroke sensor 52 into the space 58c from below and guides the harness 52b diagonally forward and upward along the standing wall 58a. Thereafter, the harness 52 b is pulled out from the upper end of the front portion 57 a of the sprocket cover 57 to the outside of the cover, and merges with the main harness routed near the main frame 22 .

[0062] In the drawings, reference numeral 52a denotes a harness connection portion that protrudes from the upper rear side of the shift stroke sensor 52 and to which a harness 52b is connected. The harness 52b extending upward from the harness connection portion 52a is routed so as to pass outside the shift spindle 45 and the second lever 45b in the vehicle width direction. In other words, the harness 52b is routed so as to avoid the rotation range of the second lever 45b, thereby reducing interference with the second lever 45b.

[0063] As described above, the sensor arrangement structure of the pedal device in the above embodiment comprises: a step 37 on which a rider of a saddle-ride type vehicle (motorcycle 1) places his / her foot; an operating pedal (shift pedal 35) that is rotatable around a pedal rotation shaft 36 that runs along the left-right direction and has a pedal body 35c arranged in front of the step 37; and an operation input shaft (shift spindle 45) that is arranged spaced apart from the pedal rotation shaft 36 and extends in the left-right direction and transmits an operating force to the shift pedal 35. A first lever 35d that is provided on the shift pedal 35 so as to be rotatable together with the first lever 35d, and a second lever 45b that is attached to the shift spindle 45 so as to be rotatable together with the first lever 35d are interlockingly connected via a shift rod 50, and the shift rod 50 is provided with an operation sensor (shift stroke sensor 52) that detects pedal operation. The pedal pivot shaft 36 is supported by a bracket (an assembly of a pedal bracket 39 and a step bracket 38), and the bracket supports the pedal pivot shaft 36 at the tip end of an arm (pedal bracket 39) extending in the fore-and-aft direction, with the pedal pivot shaft 36 and first lever 35d positioned forward of the step 37, the shift spindle 45 and second lever 45b positioned rearward of the step 37, and the shift rod 50 extending in the fore-and-aft direction along the pedal bracket 39.

[0064] With this configuration, shift rod 50 extends in the front-to-rear direction between first lever 35d, which extends from pedal rotating shaft 36 in front of step 37, and second lever 45b, which extends from shift spindle 45 behind step 37, making it easier to ensure the length of shift rod 50 and facilitate the placement of shift stroke sensor 52. By placing shift rod 50 and shift stroke sensor 52 along pedal bracket 39, the vertical width of the placement space for shift rod 50, shift stroke sensor 52, and pedal bracket 39 is reduced, and the shift rod 50, shift stroke sensor 52, and pedal bracket 39 can be easily attached later.

[0065] The sensor arrangement structure of the pedal device includes a body frame 20 and a power unit 10A mounted on the body frame 20 and including a prime mover for driving the vehicle. The power unit 10A includes a left case cover 32 attached to the side of the shift pedal 35 in the left-right direction. The left case cover 32 includes a bulge (ACG cover 32a) that bulges outward in the vehicle width direction. The shift stroke sensor 52 is arranged below the ACG cover 32a. According to this configuration, by arranging the shift stroke sensor 52 below the ACG cover 32a, which bulges outward in the vehicle width direction of the left case cover 32 of the power unit 10A, the shift stroke sensor 52 can be efficiently arranged in the empty space below the ACG cover 32a. The ACG cover 32a protects the shift stroke sensor 52 from above and from the sides.

[0066] In the sensor placement structure of the pedal device described above, the left case cover 32 has a recess 34b recessed inward in the vehicle width direction below the ACG cover 32a, and the shift stroke sensor 52 is placed below the ACG cover 32a and to the side of the recess 34b. According to this configuration, by providing a recess 34b that is recessed inward in the vehicle width direction below the ACG cover 32a of the left case cover 32, it is possible to expand the space below the ACG cover 32a and make it easier to accommodate the shift stroke sensor 52. By expanding the arrangement space for the shift stroke sensor 52, movement space for the shift stroke sensor 52 and the shift rod 50 can be secured, and the shift stroke sensor 52 can be prevented from protruding outward in the vehicle width direction.

[0067] In the sensor arrangement structure of the pedal device described above, the shift stroke sensor 52 is arranged on the inner side of the brackets (pedal bracket 39 and step bracket 38) in the vehicle width direction. According to this configuration, by arranging the shift stroke sensor 52 on the inner side of the bracket in the vehicle width direction (for example, by arranging them so that they overlap in a side view), it is possible to arrange the shift stroke sensor 52 compactly without protruding outward in the vehicle width direction. By arranging the shift stroke sensor 52 and the bracket so that they overlap in a side view, it is possible to protect the shift stroke sensor 52 from the outside in the vehicle width direction by the bracket.

[0068] In the sensor arrangement structure of the pedal device described above, the shift stroke sensor 52 is arranged so as to overlap with the step 37 in a side view. According to this configuration, by arranging the shift stroke sensor 52 so that it overlaps with the step 37 in a side view, the shift stroke sensor 52 can be arranged compactly in a side view. By arranging the shift stroke sensor 52 more inward in the vehicle width direction than the driver's foot (step 37), the shift stroke sensor 52 does not get in the way when the driver operates the pedal, and the step 37 can protect the shift stroke sensor 52.

[0069] In the sensor placement structure of the pedal device described above, the body frame 20 comprises a head pipe 21, a main frame 22 extending downward and rearward from the head pipe 21, a pivot plate 24a extending from the rear of the main frame 22 below the power unit 10A, and a down tube 23 extending downward and rearward from the head pipe 21 to support the front of the power unit 10A, and the shift stroke sensor 52 and bracket (pedal bracket 39 and step bracket 38) extend in the fore-and-aft direction of the vehicle at a position forward of the pivot plate 24a and rearward of the down tube 23. With this configuration, the shift stroke sensor 52 and the bracket extend in the fore-and-aft direction of the vehicle between the pivot plate 24a and the lower rear end of the down tube 23, making it easier to ensure space for arranging the shift stroke sensor 52 and the bracket. In other words, if the pivot plate 24a and the lower rear end of the down tube 23 are separated and no frame member is provided between them, the shift stroke sensor 52 and the bracket are prevented from protruding outward in the vehicle width direction, and the vertical dimension of the space required for arranging the shift stroke sensor 52 can be reduced. When the shift stroke sensor 52 is arranged below the ACG cover 32a of the left case cover 32, the shift stroke sensor 52 is arranged substantially horizontally below the ACG cover 32a, making it possible to effectively utilize the space below the ACG cover 32a.

[0070] In the sensor arrangement structure of the pedal device described above, the bracket is supported by the pivot plate 24a and includes a step bracket 38 that extends forward of the pivot plate 24a and supports the step 37, and a pedal bracket 39 that extends forward from the step bracket 38 and supports the shift pedal 35. According to this configuration, the bracket comprises a step bracket 38 extending forward of the pivot plate 24a, and a pedal bracket 39 extending further forward from the step bracket 38. By supporting the shift pedal 35 with this pedal bracket 39, space is secured in the longitudinal direction (front-to-back direction) of the shift rod 50 and the shift stroke sensor 52, thereby improving the design freedom of the link mechanism 55 including the shift rod 50 between the shift pedal 35 and the shift spindle 45.

[0071] In the sensor arrangement structure of the pedal device, the pedal bracket 39 is a member provided separately from the step bracket 38, the pedal bracket 39 is supported on the inner side of the step bracket 38 in the vehicle width direction, and the shift stroke sensor 52 is arranged along the pedal bracket 39 and extends together with the pedal bracket 39 in the vehicle front-rear direction. With this configuration, the shift stroke sensor 52 extends in the fore-and-aft direction of the vehicle together with the pedal bracket 39, and the pedal rotation shaft 36 is positioned forward and away from the step 37, improving the design flexibility of the shift pedal 35. With the pedal bracket 39 supported on the inner side of the step bracket 38 in the vehicle width direction, the pedal rotation shaft 36 side of the shift pedal 35 is positioned on the inner side in the vehicle width direction, so only the pedal body (tread portion) 35c can be positioned in front of the step 37, making it easier to operate the pedal. By positioning the shift stroke sensor 52 and the bracket together on the inner side in the vehicle width direction, they can be positioned compactly and approximately parallel to each other.

[0072] In the sensor arrangement structure of the pedal device, the pedal rotation shaft 36 is arranged below a tangent line t1 that spans the upper surface of the step 37 (step upper surface 37a) and the upper surface of the pedal body 35c of the shift pedal 35 (pedal upper surface 35e, tread surface) in a side view. According to this configuration, by positioning the pedal rotation shaft 36 below the tangent line t1 between the step upper surface 37a and the pedal upper surface 35e, when the rider places their foot on the step upper surface 37a and the pedal upper surface 35e, the pedal rotation shaft 36 is less likely to come into contact with the sole of the foot (sole), thereby improving pedal operability.

[0073] In the sensor arrangement structure of the pedal device, the shift stroke sensor 52 is arranged below the tangent line t1. According to this configuration, by positioning the shift stroke sensor 52 below the tangent line t1 between the step upper surface 37a and the pedal upper surface 35e, when the driver places their foot on the step upper surface 37a and the pedal upper surface 35e, the shift stroke sensor 52 is less likely to come into contact with the sole of the foot (sole), thereby improving pedal operability.

[0074] In the sensor arrangement structure of the pedal device, the shift stroke sensor 52 includes a harness connection portion 52a to which a harness 52b that transmits a signal from the shift stroke sensor 52 to the outside is connected, and the harness connection portion 52a is arranged so as to overlap with the step bracket 38 in a side view. According to this configuration, the harness connection portion 52a of the shift stroke sensor 52 overlaps with the step bracket 38 in a side view, so that the harness connection portion 52a is positioned inside the step bracket 38 in the vehicle width direction, thereby protecting the harness connection portion 52a.

[0075] The sensor arrangement structure of the pedal device described above includes an output shaft (countershaft 42) that outputs driving force for vehicle travel, and the countershaft 42 is arranged above the shift stroke sensor 52. The left case cover 32 includes a sprocket cover 57 that covers the countershaft 42 from the outside in the vehicle width direction, and a harness locking portion 58 that supports a harness 52b connected to the shift stroke sensor 52 on the inside in the vehicle width direction of the sprocket cover 57. According to this configuration, the sprocket cover 57 covering the countershaft 42 in the left case cover 32 is provided with a harness locking portion 58 that supports the harness 52b leading to the shift stroke sensor 52, making it possible to route the harness 52b inside the sprocket cover 57 while reliably isolating the harness 52b from the countershaft 42 and reducing deterioration of the harness 52b.

[0076] In the sensor arrangement structure of the pedal device described above, the harness 52b extends upward from the shift stroke sensor 52, passing outside the second lever 45b of the shift spindle 45 in the vehicle width direction, and is passed inside the sprocket cover 57. According to this configuration, the harness 52b extends upward passing outside the second lever 45b of the shift spindle 45 in the vehicle width direction and is routed inside the sprocket cover 57, thereby preventing the harness 52b from interfering with the rotation of the second lever 45b until it reaches the harness locking portion 58 of the sprocket cover 57.

[0077] In the sensor arrangement structure of the pedal device described above, the shift stroke sensor 52 is located above the lowest end of the bracket. According to this configuration, the shift stroke sensor 52 is positioned above the lowest end of the bracket, so that the shift stroke sensor 52 can be protected from disturbances from below.

[0078] The present invention is not limited to the above-described embodiment. For example, the sensor arrangement structure of the pedal device of the present embodiment may be applied to saddle-ride type vehicles other than motorcycles. The saddle-ride type vehicles include all vehicles on which a driver straddles the body, including not only motorcycles (including motorized bicycles and scooter-type vehicles), but also three-wheeled vehicles (including vehicles with one front wheel and two rear wheels, as well as vehicles with two front wheels and one rear wheel) or four-wheeled vehicles (such as four-wheeled buggies). The present invention may also be applied to vehicles that include an electric motor as a prime mover. The operation pedal is not limited to a shift pedal. For example, it may be an operation pedal related to an accelerator, brake, clutch, etc. The operation input shaft is not limited to a shift spindle. For example, it may be an operation input shaft related to each of the above-mentioned devices and relay mechanisms. The configurations in the above-described embodiments are merely examples of the present invention, and various modifications are possible without departing from the spirit of the present invention, such as replacing the components of the embodiments with well-known components. [Explanation of symbols]

[0079] 1. Motorcycles (saddle-type vehicles) 10 Engine (prime mover) 10A power unit 20 Body frame 21 Head pipe 22 Mainframe 23 Down tube 24a pivot plate 32 Left case cover (unit cover) 32a ACG cover (bulge) 34b Recess 35 Shift pedal (operating pedal) 35c Pedal body (tread) 35d First Lever 35e Pedal top 36 Pedal rotation shaft 37 steps 37a Step top 38 Step bracket (bracket) 39 Pedal bracket (bracket, arm) 42 Countershaft (output shaft) 45 Shift spindle (operation input shaft) 45b Second lever 50 Shift rod (rod) 52 Shift stroke sensor (operation sensor) 52a Harness connection 52b Harness 55 Link mechanism 57 Sprocket cover (side cover) 58 Harness retaining part t1 tangent

Claims

1. a step (37) on which a driver of the saddle-ride type vehicle (1) places his / her feet; an operating pedal (35) having a pedal body (35c) disposed in front of the step (37) and rotatable about a pedal rotation shaft (36); brackets (38, 39) supporting the step (37) and the operation pedal (35) and extending in the front-rear direction of the vehicle; a rod (50) connected to the operating pedal (35); an operation input shaft (45) interlockably connected to the operation pedal (35) via the rod (50); In the sensor arrangement structure of the pedal device, the rod (50) is provided with an operation sensor (52) that detects operation of the operation pedal (35), The brackets (38, 39) include a step bracket (38) extending in the front-rear direction of the vehicle, The pedal rotation shaft (36) is supported on the tip side of the brackets (38, 39), The pedal rotation shaft (36) is disposed forward of the step (37), The operation input shaft (45) is disposed rearward of the step (37), The rod (50) extends in the front-rear direction along the brackets (38, 39), The sensor arrangement structure of the pedal device, wherein the operation sensor (52) is located above the lowest end of the brackets (38, 39).

2. A step (37) on which a driver of a saddle-type vehicle (1) places his / her feet; an operating pedal (35) having a pedal body (35c) disposed in front of the step (37) and rotatable about a pedal rotation shaft (36); a rod (50) connected to the operating pedal (35); an operation input shaft (45) interlockably connected to the operation pedal (35) via the rod (50); In the sensor arrangement structure of the pedal device, the rod (50) is provided with an operation sensor (52) that detects operation of the operation pedal (35), The pedal rotation shaft (36) is supported on the tip end side of brackets (38, 39) extending in the front-rear direction, The pedal rotation shaft (36) is disposed forward of the step (37), The operation input shaft (45) is disposed rearward of the step (37), The rod (50) extends in the front-rear direction along the brackets (38, 39), and A vehicle body frame (20); a power unit (10A) mounted on the vehicle body frame (20) and including a prime mover (10) for vehicle travel; The power unit (10A) includes a unit cover (32) attached to a side portion on the side of the operation pedal (35) in the left-right direction, The unit cover (32) has a bulging portion (32a) that bulges outward in the vehicle width direction, The operation sensor (52) is disposed below the bulge (32a), The unit cover (32) includes a recess (34b) below the bulge (32a) that is recessed inward in the vehicle width direction, The sensor arrangement structure of a pedal device, wherein the operation sensor (52) is arranged below the bulge (32a) and to the side of the recess (34b).

3. 3. The sensor arrangement structure of a pedal device according to claim 1, wherein the operation sensor (52) is arranged on an inner side of the bracket (38, 39) in the vehicle width direction.

4. 4. The sensor arrangement structure of a pedal device according to claim 3, wherein the operation sensor (52) is arranged so as to overlap the step (37) in a side view.

5. A vehicle body frame (20); a power unit (10A) mounted on the vehicle body frame (20) and including a prime mover for running the vehicle; The vehicle body frame (20) A head pipe (21), a main frame (22) extending downward and rearward from the head pipe (21); a pivot plate (24a) extending from a rear portion of the main frame (22) downwardly of the power unit (10A); a down tube (23) extending downward and rearward from the head pipe (21) to support a front portion of the power unit (10A), 3. The sensor arrangement structure of a pedal device according to claim 1, wherein the operation sensor (52) and the bracket (38, 39) extend in the fore-and-aft direction of the vehicle at a position forward of the pivot plate (24a) and rearward of the down tube (23).

6. A vehicle body frame (20); a power unit (10A) mounted on the vehicle body frame (20) and including a prime mover for running the vehicle; The vehicle body frame (20) A head pipe (21), a main frame (22) extending downward and rearward from the head pipe (21); a pivot plate (24a) extending from a rear portion of the main frame (22) downwardly of the power unit (10A), The brackets (38, 39) are a step bracket (38) supported by the pivot plate (24a) and extending forward of the pivot plate (24a) to support the step (37); 3. The sensor arrangement structure of a pedal device according to claim 1, further comprising: a pedal bracket (39) extending forward from the step bracket (38) and supporting the operating pedal (35).

7. The pedal bracket (39) is a member provided separately from the step bracket (38), The pedal bracket (39) is supported on the inner side of the step bracket (38) in the vehicle width direction, 7. The sensor arrangement structure of a pedal device according to claim 6, wherein the operation sensor (52) is arranged along the pedal bracket (39) and extends in the front-rear direction of the vehicle together with the pedal bracket (39).

8. 3. The sensor arrangement structure of a pedal device according to claim 1, wherein the pedal rotation shaft (36) is arranged below a tangent (t1) between an upper surface (37a) of the step (37) and an upper surface (35e) of the pedal body (35c) of the operating pedal (35) in a side view.

9. 9. The sensor arrangement structure of a pedal device according to claim 8, wherein the operation sensor (52) is arranged below the tangent line (t1).

10. The operation sensor (52) includes a harness connection portion (52a) to which a harness (52b) for transmitting a signal from the operation sensor (52) to the outside is connected, 7. The sensor arrangement structure of a pedal device according to claim 6, wherein the harness connection portion (52a) is arranged so as to overlap the step bracket (38) in a side view.

11. A vehicle body frame (20); a power unit (10A) mounted on the vehicle body frame (20) and including a prime mover (10) for vehicle travel; The power unit (10A) includes a unit cover (32) attached to a side portion on the side of the operation pedal (35) in the left-right direction, and an output shaft (42) that outputs a driving force for running the vehicle, The output shaft (42) is disposed above the operation sensor (52), The unit cover (32) includes a side cover (57) that covers the output shaft (42) from the outside in the vehicle width direction, 3. A sensor arrangement structure for a pedal device according to claim 1, further comprising a harness retaining portion (58) on the vehicle widthwise inner side of the side cover (57) for supporting a harness (52b) connected to the operation sensor (52).

12. 12. The sensor arrangement structure of a pedal device according to claim 11, wherein the harness (52b) extends upward from the operation sensor (52) through the vehicle width direction outer side of the operation input shaft (45) and is passed inside the side cover (57).

13. 3. The sensor arrangement structure of a pedal device according to claim 2, wherein the operation sensor (52) is located above the lowest end of the bracket (38, 39).

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