WO2020066201A1 - 車輪構造 - Google Patents

車輪構造 Download PDF

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Publication number
WO2020066201A1
WO2020066201A1 PCT/JP2019/026478 JP2019026478W WO2020066201A1 WO 2020066201 A1 WO2020066201 A1 WO 2020066201A1 JP 2019026478 W JP2019026478 W JP 2019026478W WO 2020066201 A1 WO2020066201 A1 WO 2020066201A1
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WO
WIPO (PCT)
Prior art keywords
wheel
ring
sensor
brake
brake drum
Prior art date
Application number
PCT/JP2019/026478
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
大 石塚
半田　秋男
俊宏 池長
喜信 本田
博基 北川
宏司 中川
Original Assignee
本田技研工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to JP2020548008A priority Critical patent/JP6994583B2/ja
Priority to CN201990001028.3U priority patent/CN215180287U/zh
Priority to BR112021005720-0A priority patent/BR112021005720A2/pt
Publication of WO2020066201A1 publication Critical patent/WO2020066201A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/02—Wheels with wire or other tension spokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J99/00—Subject matter not provided for in other groups of this subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors

Definitions

  • the present invention relates to a wheel structure.
  • Priority is claimed on Japanese Patent Application No. 2018-184519, filed Sep. 28, 2018, the content of which is incorporated herein by reference.
  • Patent Literature 1 a sensor ring for a wheel speed sensor is disposed on the outer peripheral surface of a wheel hub and inside a brake drum.
  • the above-mentioned conventional configuration has the following problems.
  • the diameter of the sensor ring must be reduced, and there is a problem in fine wheel speed detection.
  • the present invention provides a wheel structure capable of suppressing the restriction on the diameter of the sensor ring and improving the fineness of wheel speed detection.
  • a first aspect of the present invention is a wheel structure including a wheel hub (68) including a brake drum (62) and a sensor ring (78) configuring a wheel speed sensor (76).
  • the wheel hub (68) includes a ring mounting portion (82) for mounting the sensor ring (78) outside the brake drum (62) in the wheel radial direction.
  • the wheel hub (68) includes a flange portion (74) radially outward of the brake drum (62) in the wheel radial direction. 82) is provided on the flange portion (74).
  • the ring attaching portion (82) is a fastening boss for fastening the sensor ring (78) in parallel with an axle direction, and the ring attaching portion (82).
  • the fastening seat surface (82a) of the flange portion (74) is disposed outside of the outer surface (74a) in the axle direction of the axle direction in the axle direction.
  • a plurality of rims (67) forming an outer peripheral portion of the wheel (66) and a plurality of rims (67) connecting the wheel hub (68) and the rim (67) are connected.
  • the flange portion (74) includes a plurality of spoke connection portions (75) provided corresponding to each of the plurality of wire spokes (69), and the plurality of spoke connection portions (75).
  • the portions (75) are arranged so as to be spaced from each other in the circumferential direction of the flange portion (74), and the ring mounting portion (82) is a pair of spokes adjacent to each other in the circumferential direction of the flange portion (74). It is arrange
  • the wire spoke (69) connected to each of the pair of spoke connection portions (75) is arranged in the wheel radial direction when viewed from the axle direction. And is arranged at an angle to the side away from the ring mounting portion (82).
  • the brake panel (63b) disposed in the opening (62a) of the brake drum (62); (63b), and a sensor main body (77) that constitutes the wheel speed sensor (76) together with the sensor ring (78).
  • the ring mounting portion (82) is arranged in the axle direction with the brake drum ( 62) on the side of the opening (62a).
  • the ring mounting portion is provided outside the brake drum in the wheel radial direction, the sensor ring can be disposed outside the brake drum. For this reason, the diameter of the sensor ring is increased irrespective of the diameter of the brake drum as compared with the case where the sensor ring is arranged inside the brake drum. As a result, the wheel speed can be detected at a smaller rotation angle, and the fineness of the wheel speed detection can be improved.
  • the ring attachment portion is provided with the ring attachment portion, the ring attachment portion and the flange portion can be integrated to facilitate their molding.
  • the fastening seat surface of the ring attachment portion is separated from the outer surface of the flange portion (spoke connection portion) in the axle direction, so that interference between the sensor ring and the wire spoke can be easily suppressed.
  • the ring attachment portion is provided avoiding the spoke connection portion in the circumferential direction of the flange portion, the interference between the sensor ring and the spoke connection portion (and the wire spokes) is suppressed, and the sensor ring is mounted. Can be attached to the ring attachment.
  • the wire spokes adjacent to the ring attachment portion are inclined away from the ring attachment portion, so that interference between the ring attachment portion and the wire spokes can be more easily suppressed, and as a result, compact A simple wheel hub can be formed.
  • the sensor body of the wheel speed sensor is supported by the brake panel, and the ring mounting portion is disposed on the side of the opening of the brake drum in the axle direction. It is possible to arrange them closer. For this reason, a dedicated component or the like for supporting the sensor body is not required, and the structure can be simplified and the number of components can be reduced.
  • FIG. 2 is a right side view of the motorcycle according to the embodiment of the present invention.
  • FIG. 2 is a right side view around the rear wheel brake of the motorcycle.
  • FIG. 3 is a right side view of FIG. 2 with some components removed.
  • FIG. 3 is a right side view of a rear wheel of the motorcycle.
  • FIG. 4 is a perspective view of a main part of FIG. 3.
  • FIG. 6 is a perspective view showing a state where a brake mechanism is removed from FIG. 5.
  • FIG. 7 is a sectional view taken along the line VII-VII of FIG. 3 (a sectional view passing through the center of the axle and the center of the sensor ring fastening bolt).
  • the motorcycle (saddle-ride type vehicle) 1 shown in FIG. 1 includes a so-called underbone type body frame 5.
  • the motorcycle 1 has a low portion between the steering wheel 4a and the seat 15 to improve ease of straddling and reduce the center of gravity of the vehicle.
  • a front wheel (steering wheel) 2 of the motorcycle 1 is supported by lower ends of a pair of left and right front forks 3.
  • the upper portions of the left and right front forks 3 are steerably supported by a front end of a vehicle body frame 5 via a steering stem 4.
  • a steering wheel 4a for steering a front wheel is attached to an upper portion of the steering stem 4.
  • the vehicle body frame 5 includes a head pipe 6 located at a front end, a main frame 7 extending obliquely downward and rearward from the head pipe 6, and a pivot frame 8 extending downward from a rear end of the main frame 7.
  • the front end of the swing arm 11 is supported by the pivot frame 8 via a pivot shaft 11a extending in the left-right direction (vehicle width direction) so as to be vertically swingable.
  • a rear wheel (drive wheel) 12 of the motorcycle 1 is supported.
  • a seat frame 13 extends rearward and upward.
  • a pair of left and right cushion units 14 is arranged between the seat frame 13 and the rear part of the swing arm 11.
  • An occupant seat 15 is arranged on the seat frame 13.
  • the vehicle body of the motorcycle 1 is covered with a vehicle body cover 16 made of synthetic resin.
  • the vehicle body cover 16 includes a front body cover 16a and a rear body cover 16b.
  • the front body cover 16a covers around the head pipe 6, around the front part of the main frame 7, and around the cylinder 22 of the engine 20.
  • the rear body cover 16b covers the front body cover 16a, around the rear part of the main frame 7, and around the seat frame 13.
  • Left and right leg shields 16c are provided on left and right sides of the front body cover 16a so as to protrude left and right.
  • reference numeral 17a denotes a front fender covering the upper part of the front wheel 2
  • reference numeral 17b denotes a rear fender covering the upper part of the rear wheel 12
  • reference numeral 17c denotes a handle cover covering the periphery of the handle 4a.
  • the engine 20 is, for example, an air-cooled single-cylinder engine.
  • the engine 20 is arranged such that the rotation axis (crank axis) of the crankshaft is arranged along the left-right direction.
  • the engine 20 projects the cylinder 22 substantially horizontally (specifically, slightly upward) from the front end of the crankcase 21 forward.
  • the motorcycle 1 employs an anti-lock brake system (hereinafter, referred to as "ABS").
  • ABS controls the braking force on the wheels by feeding back the slip ratio of the wheels.
  • the ABS of the motorcycle 1 generally includes wheel speed sensors 46 and 76 for the front and rear wheels 2 and 12, respectively.
  • the ABS detects the slip ratio of the wheel by comparing the outputs of the wheel speed sensors 46 and 76 with each other.
  • the motorcycle 1 employs a so-called one-channel ABS that performs antilock control on only one wheel (for example, the front wheel 2) in order to adopt ABS at low cost.
  • the motorcycle 1 includes a front wheel brake 30 which is a hydraulic (hydraulic) disc brake.
  • the front wheel brake 30 includes a brake disc 32 that rotates integrally with the front wheel 2 and a brake caliper 33 that presses the brake disc 32 to generate a friction braking force.
  • Reference numeral 100 in the figure denotes a disk cover that covers the periphery of the front wheel brake 30.
  • the motorcycle 1 includes a rear wheel brake 60 that is a mechanical drum brake.
  • the brake caliper 33 of the front wheel brake 30 is connected to a master cylinder 34 via an ABS modulator (not shown).
  • a brake lever (brake operator) 34 a is engaged with the master cylinder 34.
  • the driver operates the brake lever 34a to generate a hydraulic pressure in the master cylinder 34.
  • the hydraulic pressure generated by the master cylinder 34 is supplied to the brake caliper 33 via the ABS modulator.
  • the brake caliper 33 clamps the brake disc 32 to brake the rotation of the front wheel 2.
  • the ABS modulator performs ABS control (antilock brake control) for the front wheel brake 30.
  • ABS modulator detects from the detection information of the wheel speed sensors 46 and 76 that the front wheel 2 is about to fall into a locked state during front wheel braking. At this time, as the ABS control, control is performed to reduce, increase, or keep the brake fluid pressure supplied to the brake caliper 33 constant.
  • the swing arm 11 includes a pair of left and right rear arms 11b extending in the front-rear direction.
  • a rear wheel 12 is disposed between the rear portions of the left and right rear arms 11b.
  • the rear wheel 12 is supported at the rear ends of the left and right rear arms 11b via a rear axle (rear axle) 26 extending in the left-right direction (vehicle width direction).
  • a driven sprocket 27 of a chain type transmission mechanism and a driven flange 28 for holding the driven sprocket 27 so as to be integrally rotatable are arranged on the left side of the rear wheel 12.
  • the driven flange 28 is engaged with a wheel hub 68 of the rear wheel 12 in a rear wheel rotation direction (circumferential direction) via a damper member 29 made of an elastic material such as rubber.
  • the wheel hub 68 (the rear wheel 12) and the driven flange 28 (the driven sprocket 27) can mutually transmit torque via a damper member 29.
  • the rear wheel brake 60 is disposed on the right side of the rear wheel 12.
  • the rear wheel brake 60 includes a brake drum 62 and a brake mechanism 63.
  • the brake drum 62 is provided on the right side of the wheel hub 68 of the rear wheel 12 so as to be integrally rotatable.
  • the brake mechanism 63 is supported by the right rear arm 11b so as not to rotate relatively.
  • the brake mechanism 63 includes a brake panel 63b and mechanical components such as a pair of brake shoes 63a.
  • the brake panel 63b is provided so as to close the opening 62a of the brake drum 62.
  • the mechanical components are supported by the brake panel 63b.
  • the brake panel 63b is connected to the swing arm 11 via the torque rod 64. This restricts the rotation of the brake panel 63b around the axle.
  • An anchor pin (not shown) is erected on the brake panel 63b, and a cam shaft 65 is rotatably supported.
  • the anchor pin serves as a support shaft for the expanding operation of the pair of brake shoes 63a.
  • the cam shaft 65 causes the pair of brake shoes 63a to expand.
  • the pair of brake shoes 63a faces inside the brake drum 62.
  • the cam shaft 65 protrudes rightward through the brake panel 63b.
  • a base end of a brake arm 65a is attached to a protruding end of the cam shaft 65 so as to be integrally rotatable.
  • the brake arm 65a and the camshaft 65 are rotated via a brake rod or the like.
  • the pair of brake shoes 63a expand and operate to slidably contact the inner peripheral surface of the brake drum 62, thereby braking the rear wheel 12.
  • the rear wheel 12 has a tire 66a mounted on the outer periphery of the wheel 66.
  • the wheel 66 is an assembled wire spoke wheel.
  • the wheel 66 includes a rim 67 forming an outer peripheral portion, a wheel hub 68 forming an inner peripheral portion, and a plurality of wire spokes 69 connecting the rim 67 and the wheel hub 68.
  • the front wheel 2 has the same configuration.
  • the wheel hub 68 is formed using a metal material such as an aluminum alloy.
  • the wheel hub 68 is integrally formed by casting or the like.
  • the wheel hub 68 has a cylindrical shape coaxial with the rear axle (axle) 26 along the left-right direction.
  • the wheel hub 68 houses the rear axle 26, the axle bearing 26b, and the like.
  • the wheel hub 68 is rotatably supported by the rear axle 26.
  • the rim 67 is formed using a metal material such as an aluminum alloy, for example.
  • the rim 67 is integrally formed by casting or the like.
  • the rim 67 has an annular shape along the circumferential direction of the rear wheel 12.
  • a central projection 67a is formed at the center of the rim 67 in the axle direction.
  • the central convex portion 67a extends annularly over the entire circumference in the rim circumferential direction.
  • a spoke pedestal 67b projecting hemispherically inward in the rim radial direction is formed in the central convex portion 67a.
  • a plurality of spoke pedestals 67b are formed at regular intervals in the rim circumferential direction.
  • the plurality of spoke pedestals 67b are provided corresponding to the plurality of wire spokes 69.
  • a nipple 67c is rotatably held on each spoke pedestal 67b.
  • the nipple 67c connects the front end portion 69b of the corresponding wire spoke 69 on the wheel outer peripheral side.
  • the wire spoke 69 is a wire made of a metal material such as stainless steel.
  • the wire spoke 69 includes a base end portion 69a on the inner peripheral side of the wheel, a distal end portion 69b on the outer peripheral side of the wheel, and a linearly extending portion 69c extending between both end portions 69a and 69b.
  • a base end portion 69 a of the wire spoke 69 has a hook shape and is engaged with a spoke connecting portion 75 of the wheel hub 68.
  • the distal end portion 69b of the wire spoke 69 has a screw shaft shape, and is screwed into a nipple 67c held on a rim 67 and tightened.
  • both ends of the wire spoke 69 are connected to the wheel hub 68 and the rim 67, respectively.
  • the wire spoke 69 is installed between the rim 67 and the wheel hub 68 with a predetermined tension.
  • the rim 67 and the wheel hub 68 are connected via the wire spokes 69.
  • the arrangement of the wire spokes 69 is roughly divided into two types.
  • the arrangement of the wire spokes 69 is divided according to the inclination of the extending portion 69c with respect to the wheel radial direction when viewed in the axle direction.
  • the first arrangement is such that the extending portion 69c follows the forward rotation direction of the rear wheel 12 (the rotation direction during vehicle running, the normal rotation direction r1) from the base end portion 69a side to the tip end portion 69b side. It is an inclined arrangement.
  • the second arrangement is such that the extending portion 69c is inclined from the base end portion 69a side to the tip end portion 69b side so as to follow the rearward rotation direction of the rear wheel 12 (the rotation direction when the vehicle retreats, the reverse rotation direction r2).
  • This is the arrangement.
  • the former arrangement and the latter arrangement are different in the inclination direction of the extension 69c, but the inclination angle with respect to the wheel radius is substantially the same.
  • the former arrangement is referred to as “an arrangement h1 inclined in the forward rotation direction”
  • the latter arrangement is referred to as an “arrangement h2 inclined in the reverse rotation direction”.
  • the wheel hub 68 includes a cylindrical hub main body 68a through which the rear axle 26 is inserted, and a cylindrical outer shell 68b arranged on the outer periphery of the hub main body 68a at intervals. It has. A pair of left and right ball bearings (axle bearing 26b) is press-fitted on both left and right sides inside the hub body 68a.
  • a plate-shaped partition wall 68c orthogonal to the left-right direction is provided between the hub body 68a and the outer shell 68b.
  • the partition wall portion 68c is provided on the left side (on the driven sprocket 27 side) of the center position of the wheel hub 68 in the left-right direction (axle direction).
  • the partition wall portion 68c connects the hub body 68a and the outer shell portion 68b, and divides the internal space of the wheel hub 68 into a left space k1 and a right space k2.
  • the left space k1 is an annular concave space opened to the left of the wheel hub 68, and has a relatively shallow depth in the left-right direction.
  • the right space k2 is an annular concave space opened to the right of the wheel hub 68, and has a relatively large depth in the left-right direction.
  • a portion of the wheel hub 68 that forms the left space k1 (hereinafter, referred to as a left space forming portion 71) has a bottomed cylindrical shape that opens (opens) leftward with the partition wall portion 68c as the bottom.
  • the left space forming portion 71 has a mode in which the hub body 68a protrudes from the center.
  • a portion of the wheel hub 68 that forms the right space k2 (hereinafter, referred to as a right space forming portion 72) has a bottomed cylindrical shape that opens (opens) rightward with the partition wall portion 68c as the bottom.
  • the right space forming portion 72 has a mode in which the hub body 68a protrudes at the center.
  • a bottomed cylindrical brake drum 62 that forms an inner wall surface is arranged inside the right space forming portion 72.
  • the brake drum 62 is cast into, for example, a wheel hub 68 and is provided so as to be integrally rotatable.
  • the wheel hub 68 and the separate brake drum 62 may be attached to the wheel hub 68 so as to be integrally rotatable.
  • the enlarged diameter portion 68d is fitted with the brake panel 63b.
  • the rear axle 26 is constituted by, for example, a shaft portion of a long stepped bolt extending in the left-right direction.
  • the rear axle 26 passes through the rear wheel 12 and the swing arm 11 from one side in the left-right direction to the other side.
  • the rear axle 26 passes through the rear ends of the left and right rear arms 11b, the left and right axle bearings 26b press-fit into the wheel hub 68, and the like.
  • the threaded end of the rear axle 26 projects to the other side in the left-right direction.
  • An axle nut is screwed into this tip screw portion and tightened, so that the rear wheel 12 is rotatably supported at the rear end of the swing arm 11.
  • a left flange portion 73 is formed on the left side of the outer portion 68b.
  • the left flange portion 73 is formed on the outer periphery of the left and right intermediate portion of the left space forming portion 71, and rises outward in the hub radial direction.
  • a right flange portion 74 is formed on the right side of the outer portion 68b.
  • the right flange portion 74 is formed on the outer periphery of the enlarged diameter portion 68d, and rises outward in the hub radial direction.
  • the left and right flange portions 73 and 74 stand up, for example, with the same tip height.
  • the left and right flange portions 73 and 74 are provided outside the brake drum 62 in the hub radial direction. Note that the term “intermediate” used in the present embodiment includes not only the center between both ends of the target, but also the inner range between both ends of the target.
  • the left and right flange portions 73 and 74 form a plurality of spoke connecting portions 75 of the same number as the plurality of wire spokes 69.
  • reference numeral 26c is a center collar disposed between the left and right axle bearings 26b
  • reference numeral 26d is an outer ball bearing held on the inner periphery of the outer portion of the driven flange 28
  • reference numeral 26e is an outer ball bearing 26d and the left axle bearing 26b.
  • 26f indicates a left outer collar disposed outside the outer ball bearing 26d
  • line C3 indicates a center axis of the rear axle 26.
  • the plurality of spoke connecting portions 75 of the wheel hub 68 each have an insertion hole 75a.
  • Each insertion hole 75a penetrates the base end portion 69a of the corresponding wire spoke 69.
  • the proximal end portion 69a of the wire spoke 69 has a bent portion 69a1 and an umbrella-shaped head 69a2 whose diameter is increased at the distal end of the bent portion 69a1.
  • the wire spoke 69 is inserted into the insertion hole 75a of the spoke connecting portion 75 from the distal end portion 69b side, and the base end portion 69a is prevented from falling off by the head portion 69a2. As a result, the base end portion 69a is locked to the spoke connecting portion 75.
  • the plurality of spoke connection portions 75 are arranged at equal intervals in the hub circumferential direction.
  • the plurality of spoke connection portions 75 connect wire spokes 69 having different arrangements, for example, alternately in the hub circumferential direction.
  • the plurality of spoke connecting portions 75 alternately connect the wire spokes 69 in the arrangement h1 inclined in the forward rotation direction and the wire spokes 69 in the arrangement h2 inclined in the reverse rotation direction.
  • the wire spoke 69 in the arrangement h1 inclined in the normal rotation direction with respect to the spoke connection portion 75 has the extension portion 69c arranged inside the axle direction and the head portion 69a2 arranged outside the axle direction.
  • the wire spoke 69 in the arrangement h2 inclined in the reverse rotation direction with respect to the spoke connection portion 75 has the extension portion 69c arranged outside in the axle direction and the head portion 69a2 arranged inside in the axle direction.
  • the following pair of wire spokes 69 will be referred to as “wire spoke pair 69P”.
  • the pair of wire spokes 69P of the wire spoke pair 69P are connected to a pair of spoke connection portions 75 adjacent in the hub circumferential direction, and are arranged so as to be separated from each other when viewed in the axle direction.
  • the rear wheel speed sensor 76 that detects the rotation speed of the rear wheel 12 includes a sensor body (pickup sensor) 77 and a sensor ring (pulsaring) 78.
  • the sensor body 77 is attached to the brake panel 63b on the right side of the wheel hub 68.
  • the sensor ring 78 has a plate shape, is attached to the right end of the wheel hub 68, and rotates integrally with the rear wheel 12.
  • a sensor mounting portion 79 for mounting the sensor body 77 is provided at the upper front portion of the brake panel 63b.
  • the sensor mounting portion 79 is formed integrally with the brake panel 63b.
  • the sensor mounting portion 79 has a sensor insertion hole through which the sensor body 77 is inserted and held.
  • a sensor fastening hole is provided below the sensor insertion hole.
  • a fastening flange 78b of the sensor main body 77 is fastened and fixed to the sensor fastening hole by a fastening bolt 79c.
  • the sensor ring 78 is arranged on the right side of the center of the wheel hub 68 in the axle direction (the center of the left and right sides of the vehicle body). The sensor ring 78 is disposed closer to the opening side (right side) than the center of the brake drum 62 in the axle direction.
  • the sensor ring 78 includes a detected portion 78a having a ring shape coaxial with the rear wheel 12, and a plurality of fastening flanges 78b extending to the inner peripheral side of the detected portion 78a.
  • a plurality of pickup holes are formed at equal intervals in the circumferential direction of the ring in the detected portion 78a.
  • the detection part of the sensor main body 77 is opposed to the detection part 78a from the outside in the axle direction (lateral direction).
  • the plurality of fastening flanges 78b are arranged at equal intervals in the ring circumferential direction.
  • the detected portion 78a is formed so as to protrude outward in the wheel radial direction (that is, to have a diameter larger than that of the wheel hub 68 and the brake drum 62).
  • the detected portion 78a projects outward in the wheel radial direction from the wheel hub 68 and the brake drum 62 when viewed in the axle direction.
  • the sensor ring 78 is formed in a flat plate shape including, for example, the detected portion 78a and the fastening flange 78b.
  • the sensor body 77 is supported by a brake panel 63b which is on the non-rotating side with respect to the rear wheel 12.
  • the sensor main body 77 is disposed on the right side of the center of the wheel hub 68 of the rear wheel 12 in the axle direction.
  • the sensor main body 77 is disposed closer to the opening side than the center of the brake drum 62 in the axle direction.
  • the sensor main body 77 and the sensor ring 78 are close to each other in the axle direction, and the rear wheel speed sensor 76 can be easily installed.
  • the sensor main body 77 has a pickup coil, and generates a pulse signal by a change in magnetic flux accompanying rotation of the detected portion 78a. This pulse signal is output to a predetermined control unit.
  • the wheel speed detected by the rear wheel speed sensor 76 is used for controlling the ABS and the traction control system.
  • the wheel hub 68 includes a ring attaching portion 82 to which a sensor ring 78 is attached.
  • the ring mounting portion 82 is provided in a boss shape that protrudes outward in the axle direction from the outer surface 74a of the right flange portion 74.
  • the ring mounting part 82 is formed integrally with the right flange part 74.
  • the ring attachment portion 82 is provided radially outward of the wheel hub 68 and the brake drum 62 in the axle direction.
  • the base end of the ring mounting portion 82 is integrated with the right flange portion 74.
  • the inner peripheral end side of the ring mounting portion 82 in the wheel radial direction is integrated with the enlarged diameter portion 68 d of the wheel hub 68.
  • the ring mounting portion 82 has an end surface (fastening seat surface 82a) orthogonal to the axle direction on the outside in the axle direction.
  • the ring mounting portion 82 has a screw hole along the axle direction.
  • the screw hole of the ring attachment portion 82 opens on the fastening seat surface 82a.
  • the fastening seat surface 82a is arranged, for example, flush with an end surface of the enlarged diameter portion 68d on the outer side in the axle direction.
  • the ring mounting portion 82 makes the fastening flange 78b of the sensor ring 78 abut on the fastening seat surface 82a. In this state, the fastening bolt 82c parallel to the axle direction is inserted into the screw insertion hole of the fastening flange 78b.
  • This fastening bolt 82c is screwed into a screw hole of the ring attachment portion 82 and tightened, so that the fastening flange 78b is fastened to the ring attachment portion 82.
  • the sensor ring 78 is fixed to the wheel hub 68 so as to be integrally rotatable.
  • the ring attachment portion 82 is arranged between the pair of wire spokes 69 in the wire spoke pair 69P.
  • the pair of wire spokes 69 of the wire spoke pair 69P are arranged so as to be inclined away from each other. Thereby, the following pair of wire spokes 69 are arranged on both sides of the ring attachment portion 82 in the hub circumferential direction.
  • the pair of wire spokes 69 are inclined toward the side away from the ring attachment portion 82 when viewed in the axle direction. That is, the ring attachment portion 82 is disposed between the pair of wire spokes 69 inclined to the side away from the ring attachment portion 82 when viewed in the axle direction.
  • the interference between the sensor ring 78 and the fastening bolt 82c and the wire spoke 69 can be easily suppressed. That is, it is not necessary to take measures such as offsetting the fastening flange 78b of the sensor ring 78 by forming the fastening flange 78b in a step shape.
  • the sensor ring 78 is fixed to a boss-shaped ring mounting portion 82 formed integrally with the wheel hub 68. For this reason, compared with the case where a separate ring mounting member is provided, an increase in the number of parts can be suppressed and cost can be reduced.
  • the aspect of the ring attachment part 82 is not limited to the above.
  • the ring mounting portion 82 may be separated from at least one of the right flange portion 74 and the enlarged diameter portion 68d (hub end).
  • the wheel structure in the above embodiment includes the wheel hub 68 including the brake drum 62 and the sensor ring 78 configuring the rear wheel speed sensor 76.
  • the wheel hub 68 includes a ring mounting portion 82 for mounting a sensor ring 78 outside the brake drum 62 in the wheel radial direction.
  • the ring mounting portion 82 is provided outside the brake drum 62 in the wheel radial direction, the following operations and effects are obtained. That is, it is possible to arrange the sensor ring 78 outside the brake drum 62. Therefore, the diameter of the sensor ring 78 is increased irrespective of the diameter of the brake drum 62 as compared with the case where the sensor ring 78 is disposed inside the brake drum 62. This makes it possible to detect the wheel speed with a smaller rotation angle. Therefore, the fineness of the wheel speed detection can be improved.
  • the wheel hub 68 includes a right flange portion 74 outside the brake drum 62 in the wheel radial direction.
  • the ring attachment part 82 is provided on the right flange part 74.
  • the ring mounting portion 82 is provided on the right flange portion 74. Therefore, the ring mounting portion 82 and the right flange portion 74 can be integrated to facilitate their molding.
  • the ring mounting portion 82 is a fastening boss that fastens the sensor ring 78 in parallel with the axle direction.
  • the fastening seat surface 82a of the ring attachment portion 82 is disposed outside the axle-side outer surface 74a of the right flange portion 74 in the axle direction. According to this configuration, the fastening seat surface 82a of the ring attachment portion 82 is separated from the outer side surface 74a of the right flange portion 74 (spoke connection portion 75) in the axle direction. Therefore, interference between the sensor ring 78 and the wire spoke 69 can be easily suppressed.
  • a rim 67 forming an outer peripheral portion of the wheel 66 and a plurality of wire spokes 69 connecting between the wheel hub 68 and the rim 67 are provided.
  • the right flange portion 74 includes a plurality of spoke connection portions 75.
  • the plurality of spoke connection portions 75 are provided corresponding to each of the plurality of wire spokes 69.
  • the plurality of spoke connection portions 75 are arranged so as to be spaced from each other in the circumferential direction of the right flange portion 74.
  • the ring attachment portion 82 is arranged between a pair of spoke connection portions 75 adjacent to each other in the circumferential direction of the right flange portion 74.
  • the ring attachment portion 82 is provided so as to avoid the spoke connection portion 75 in the circumferential direction of the right flange portion 74. For this reason, interference between the sensor ring 78 and the spoke connecting portion 75 (and the wire spoke 69) is suppressed. In this state, the sensor ring 78 can be attached to the ring attachment portion 82.
  • the pair of wire spokes 69 of the pair of wire spokes 69 ⁇ / b> P are connected to each of the pair of spoke connection portions 75.
  • the pair of wire spokes 69 are arranged so as to be inclined toward the side away from the ring attaching portion 82 with respect to the wheel radial direction when viewed from the axle direction. According to this configuration, the wire spoke 69 near the ring attachment portion 82 is inclined so as to be separated from the ring attachment portion 82. Therefore, interference between the ring attachment portion 82 and the wire spoke 69 can be more easily suppressed.
  • the wheel structure includes a brake panel 63b disposed in the opening 62a of the brake drum 62, and a sensor body 77 attached to the brake panel 63b and forming a rear wheel speed sensor 76 together with the sensor ring 78.
  • the ring mounting portion 82 is arranged on the opening 62a side of the brake drum 62 in the axle direction. According to this configuration, the sensor body 77 of the rear wheel speed sensor 76 is supported by the brake panel 63b.
  • the ring mounting portion 82 is arranged on the opening 62a side of the brake drum 62 in the axle direction. This makes it possible to arrange the sensor main body 77 and the sensor ring 78 closer to each other in the axle direction. For this reason, a dedicated component or the like for supporting the sensor main body 77 becomes unnecessary. Therefore, the structure can be simplified and the number of parts can be reduced.
  • the present invention is not limited to the above embodiment.
  • the front wheel brake 30 is a drum brake
  • the present invention may be applied to the wheel structure of the front wheel 2. That is, the front wheel 2 may be configured to include a wheel hub having a brake drum and a sensor ring forming the front wheel speed sensor 46. Further, the wheel hub may be provided with a ring mounting portion for mounting the sensor ring outside the brake drum in the wheel radial direction.
  • the saddle-ride type vehicle includes all types of vehicles in which a driver rides across a vehicle body, and includes not only motorcycles (including motor-driven bicycles and scooter-type vehicles) but also three wheels (besides one front wheel and two rear wheels). , Front two-wheel and rear one-wheel vehicles) or four-wheel vehicles.
  • the configuration in the above embodiment is an example of the present invention, and various changes can be made without departing from the gist of the present invention, such as replacing the component of the embodiment with a known component.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Regulating Braking Force (AREA)
PCT/JP2019/026478 2018-09-28 2019-07-03 車輪構造 WO2020066201A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2020548008A JP6994583B2 (ja) 2018-09-28 2019-07-03 車輪構造
CN201990001028.3U CN215180287U (zh) 2018-09-28 2019-07-03 车轮结构
BR112021005720-0A BR112021005720A2 (pt) 2018-09-28 2019-07-03 estrutura de roda

Applications Claiming Priority (2)

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JP2018-184519 2018-09-28
JP2018184519 2018-09-28

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WO2020066201A1 true WO2020066201A1 (ja) 2020-04-02

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CN (1) CN215180287U (zh)
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512339U (ja) * 1991-07-29 1993-02-19 スズキ株式会社 車両のホイール回転数検出装置
JPH0668906U (ja) * 1993-03-11 1994-09-27 光洋精工株式会社 ハブユニット
JPH08133154A (ja) * 1994-11-10 1996-05-28 Honda Motor Co Ltd 自動二輪車における車輪速度検出装置
WO2006034053A1 (en) * 2004-09-17 2006-03-30 Gkn Driveline North America, Inc. System for determining the locking state of a differential
JP2017053632A (ja) * 2015-09-07 2017-03-16 スズキ株式会社 車輪速センサ装置取付構造

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012141184A (ja) 2010-12-28 2012-07-26 Honda Motor Co Ltd パルサーリングおよび鞍乗り型車両
JP5936432B2 (ja) 2012-04-27 2016-06-22 ヤマハ発動機株式会社 位置決め部材および回転検出装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0512339U (ja) * 1991-07-29 1993-02-19 スズキ株式会社 車両のホイール回転数検出装置
JPH0668906U (ja) * 1993-03-11 1994-09-27 光洋精工株式会社 ハブユニット
JPH08133154A (ja) * 1994-11-10 1996-05-28 Honda Motor Co Ltd 自動二輪車における車輪速度検出装置
WO2006034053A1 (en) * 2004-09-17 2006-03-30 Gkn Driveline North America, Inc. System for determining the locking state of a differential
JP2017053632A (ja) * 2015-09-07 2017-03-16 スズキ株式会社 車輪速センサ装置取付構造

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CN215180287U (zh) 2021-12-14
BR112021005720A2 (pt) 2021-07-27
JP6994583B2 (ja) 2022-01-17
JPWO2020066201A1 (ja) 2021-08-30

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