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PH12013000206B1 - Structure of mounting vehicle-speed sensor in motorcycle - Google Patents

Structure of mounting vehicle-speed sensor in motorcycle Download PDF

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Publication number
PH12013000206B1
PH12013000206B1 PH12013000206A PH12013000206A PH12013000206B1 PH 12013000206 B1 PH12013000206 B1 PH 12013000206B1 PH 12013000206 A PH12013000206 A PH 12013000206A PH 12013000206 A PH12013000206 A PH 12013000206A PH 12013000206 B1 PH12013000206 B1 PH 12013000206B1
Authority
PH
Philippines
Prior art keywords
crankcase
sensor mounting
vehicle
sensor
starter motor
Prior art date
Application number
PH12013000206A
Other versions
PH12013000206A1 (en
Inventor
Naoki Kono
Teruhide Yamanishi
Satoru Watanabe
Kazuhito Takahashi
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of PH12013000206A1 publication Critical patent/PH12013000206A1/en
Publication of PH12013000206B1 publication Critical patent/PH12013000206B1/en

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  • Automatic Cycles, And Cycles In General (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

In a motorcycle in which a motor housing cavity for housing a part of a starter motor, and a sensor mounting seat for mounting a vehicle-speed sensor placed facing an outer periphery of a specific gear of the gear transmission mechanism are provided on the upper face of the crankcase rearward of the cylinder block, and a sprocket cover is attached to a side face of the crankcase, the vehicle-speed sensor mounted to the upper face of the crankcase is protected while eliminating the need for a dedicated protective cover for a reduction in component count. A sensor mounting cavity 55 having an inner end at which a sensor mounting seat 47 is formed and having an opening formed on a side face of the crankcase 19 is provided on the upper face of the crankcase 19 rearward of the motor housing cavity 45. The vehicle-speed sensor 46 is mounted in a fluid tight manner on the sensor mounting seat 47 in such a manner as to be surrounded on all sides by the starter motor 44, the sprocket cover 43 and a side wall of the sensor mounting cavity 55.

Description

; , | . * | | H112-2718-JP01,(2012-216288) For Applicatien — - &) , & , he _ [Document Name] Specification 2115ep 3 pl 3 2 [Title of the Invention] STRUCTURE OF MOUNTING VEHICLE-SPEED - ”
SENSOR IN MOTORCYCLE ay F To & oy Cv [Technical Field] oy Cp
The present invention relates to a motorcycle in which: arr” Le
So men engine body that includes a crankcase rotatably supporting a = - 10. Crankshaft and a cylinder block connected to a front portion of >
Lr the crankcase and rising upward is mounted on a body frame; a SE gear transmission mechanism that is capable of shifting in a 15 . stepwise fashion and then transferring rotational power from the crankshaft to a transmission output shaft housed rotatably in the crankcase is housed in the crankcase; a drive sprocket on which a ‘drive chain for transferring power to a rear wheel is wound is . mounted at an end of the transmission output shaft projecting : . from a side face of the crankcase; a motor housing cavity and a : ® ‘sensor mounting seat are provided on an upper face of the crankcase rearward of the cylinder block; the motor housing cavity houses a part of a starter motor mounted to the crankcase; ‘the sensor mounting seat is formed to mount a vehicle-speed sensor placed facing an outer periphery of a specific gear of the oo gear transmission mechanism; and a sprocket cover for covering ‘the drive sprocket is provided on the side face of the crankcase, and more particularly to an improvement in structure of mounting a vehicle-speed Sensor. I - [Background art]
A motorcycle having a stator motor mounted on an upper face
: h > ) | H112-2718-JP01(2012-216288) for Application £ , n \ go } of a crankcase rearward of a cylinder block and a vehicle-speed ~ sensor mounted on the upper face of the crankcase rearward of the w
Fru starter motor is known from Patent Literature 1. Co = [Citation List] = . 5 [Patent Literature] “ - [Patent Literature 1] JP-A No. 2009-67336 io [Summary of Invention] 5 [Technical Problem] we
Meanwhile, there is often a relatively wide open space above the crankcase mounted on the motorcycle. A position of mounting the vehicle-speed sensor on the upper face of the crankcase is restricted in order to protect the vehicle-speed sensor from flying stones, muddy water and the like while the motorcycle is moving. Therefore, as disclosed in Patent 1jiterature 1, some measures are taken such as mounting the vehicle-speed sensor on an approximately central portion of the upper face of the crankcase rearward of the cylinder block, : providing a protective cover for protecting the vehicle-speed sensor and the like.
The present invention has been made in light of such - circumstances and provides a vehicle-speed-sensor mount ing ) structure in a motorcycle which is capable of protecting a : 20 vehicle-speed sensor mounted on an upper face of a crankcase while eliminating the need for a dedicated protective cover for a reduction in component count.
Co * | H112-2718-JP01(2012-216288) for Application £ i i : “oo [Solution to Problem] z " : To attain this object, a first aspect of the present ey pe : invention provides a vehicle-speed-sensor mounting structure in a ee . g motorcycle in which: an engine body that includes a crankcase © rotatably supporting a crankshaft and a cylinder block connected y
Jaa to a front portion of the crankcase and rising upward is mounted - on ona body frame; a gear transmission mechanism that is capable of = shifting in a stepwise fashion and then transferring rotational ph power from the crankshaft to a transmission output shaft housed rotatably in the crankcase is housed in the crankcase; a drive sprocket on which a drive chain for transferring power to a rear : wheel is wound is mounted at an end of the transmission output shaft projecting from a side face of the crankcase; a motor housing cavity and a sensor mounting seat are provided on an upper face of the crankcase rearward of the cylinder block; the motor housing cavity houses a part of a starter motor mounted to the crankcase; the sensor mounting seat is formed to mount a ‘vehicle-speed sensor placed facing an outer periphery of a specific gear of the gear transmission mechanism; and a sprocket cover for covering the drive sprocket is provided on the side face of the crankcase. In the vehicle-speed-sensor mounting 3s structure in a motorcycle, a sensor mounting cavity having an inner end at which the sensor mounting seat is formed and having an opening formed on the side face of the crankcase is provided 20 on the upper face of the crankcase rearward of the motor housing cavity; and the vehicle-speed sensor is mounted in a fluid tight manner on the sensor mounting seat in such a manner as to be : :
: | | H112-2718-JP01 (2012-216288) for Application & . i . aT surrounded on all sides by the starter motor, the sprocket cover “ and a side wall of the sensor mounting cavity. | | ~ fou! : A second aspect of the present invention is that, in : 5 g addition to the structure of the first aspect, the sensor = mounting cavity with the sensor mounting seat situated upward of a bottom of the motor housing cavity has an opening facing toward . the motor housing cavity located forward of the sensor mounting cavity. ©
A third aspect of the present invention is that, in addition to the structure of the first or second aspect, the sensor mounting seat is formed to be inclined downward toward the rear. Bh
A fourth aspect of the present invention is that, in addition to the structure of any of the first to third aspects, the motor housing cavity is formed to enable the starter motor to slide in the axis direction between a position where the pinion, : which is provided on an output shaft of the starter motor and forms a part of the gear power transmission mechanism provided between the starter motor and the crankshaft, is placed to establish the gear power transmission mechanism and fastened to ) the crankcase, and a position where the fastening to the crankcase is released to disengage the pinion from the gear power 20 transmission mechanism; and the output shaft of the starter motor is placed in the vicinity of the vehicle-speed sensor in a direction along the axis of the crankshaft. : :
; N » | H112-2718-JP01(2012-216288) for Application & . . ) po cS ‘A fifth aspect of the present invention is that, in addition to the structure of the fourth aspect, a chain tensioner o : for applying tension to a cam chain is mounted to a rear wall of oe } ¢ the cylinder block in a position in which the chain tensioner o partially overlaps the starter motor when viewed in a top view . and also which corresponds to the vehicle-speed sensor in a = 10 direction along the axis of the crankshaft. : o [Advantageous Effects of Invention] | - 15 According to the first aspect of the present invention, the sensor mounting cavity situated rearward of the motor housing cavity is provided on the upper face of the crankcase such that 20 the sensor mounting seat is formed at the inner end and the opening is formed on a side face of the crankcase in the vicinity of the drive sprocket. And, the vehicle-speed sensor is installed 25 in a fluid tight manner on the sensor mounting seat in such a manner as to be covered on all sides with the starter motor partially housed in the motor housing cavity, the sprocket cover 30 attached to a side face of the crankcase to cover the drive . sprocket, and the side wall of the sensor mounting cavity. As a result, it is possible to mount the vehicle-speed sensor to the 3s upper face of the crankcase so that the vehicle-speed sensor is protected by simple structure without a dedicated protective ) cover. oo 40
According to the second aspect of the present invention, since the sensor mounting cavity has the opening facing toward
: . | | : H112-2718-JP01(2012-216288) for Application the motor housing cavity located forward of the sensor mounting 7 oi cavity, maintenance can be easily performed on the vehicle-speed sensor by removing the starter motor from the crankcase. Also, = ’ since the sensor mounting seat is located above the bottom of the o s ¢ motor housing cavity, the vehicle-speed sensor is capable of “© being protected from rainwater entering the motor housing cavity. »
EN
According to the third aspect of the present invention, - since the sensor mounting seat is inclined downward toward the o rear, the rainwater entering the sensor mounting cavity can be collected into a rear portion of the sensor mounting cavity so that the rainwater is effectively discharged from a side face of - the crankcase to the outside by use of the inertia while the motorcycle is moving.
According to the fourth aspect of the present invention, the starter motor is capable of sliding within the motor housing cavity between a position where the pinion provided on the output shaft of the starter motor is placed to establish the gear power transmission mechanism and fastened to the crankcase, and a position where the fastening to the crankcase is released so that the pinion is disengaged from the gear power transmission : mechanism, but the output shaft of the starter motor is placed in the vicinity of the vehicle-speed sensor in the direction along the axis of the crankshaft. As a result, when the starter motor “ is slid, only a very small area in the length in the axis direction of the starter motor moves across in front of the vehicle-speed sensor, so that the starter motor can be smoothly
. Bh ' H112-2718-JP01(2012-216288) for Application moved. z eos : bo oo Further, according to the fifth aspect of the present oo : invention, the chain tensioner mounted to the rear wall of the on » Cylinder block is located in a position in which a part of the = : chain tensioner overlaps the starter motor when viewed in a top » view and also which corresponds to the vehicle-speed sensor in - jo the direction along the axis of the crankshaft. Because of this, . in a process of mounting/dismounting the starter motor, the chain oo tensioner restrains the starter motor from displacing in the up- 15 and-down direction, thus restraining the starter motor from contact with the vehicle-speed sensor. [Brief Description of Drawings] 20 [Fig. 1] Fig. 1 is a side view of a motorcycle. [Fig. 2] Fig. 2 is a side view of an engine body. 25 [Fig. 3] Fig. 3 is a perspective view showing a part of the engine body. [Fig. 4] Fig. 4 is a sectional view taken along line 4-4 of Fig. 30 °° [Fig. 5] Fig. 5 is a sectional view taken along line 5-5 of Fig. [Description of Embodiment] oo
An embodiment according to the present invention is “ described with reference to the accompanying Figures 1 to 5. In the following description, “front”, “rear”, “left”, “right”, “up” and “low/down” refer to the respective directions as viewed by a
; | H112-2718-JP01(2012-216288) for Application rider riding on the motorcycle. 7 poe ’ Fund
First, in Fig. 1, a body frame F .of the motorcycle has at = its front end a head pipe 11 that steerably supports a front fork : 12 pivotally supporting a front wheel WF. The body frame F has, = in its middle area in the longitudinal direction, a pivot frame 0 14 that swingably supports, through a pivot 15, a front end of a - 0 swing arm 13 pivotally supporting a rear wheel WR at its rear end. a
An engine body 16 of the engine E is mounted on the body frame F to be placed between the front wheel WF and the rear wheel WR. A fuel tank 17 placed above the engine body 16 and a riding seat 18 placed rearward of the fuel tank 17 are supported by the body frame F.
The engine body 16 includes: a crankcase 19 constructed by combining a left crankcase half 19a and a right crankcase half 19b together; a cylinder block 20 connected to a front portion of : the crankcase 19 and rising upward while being inclined upward : 20 toward the front; a cylinder head 21 connected to an upper portion of the cylinder block 20; and a head cover 22 connected : to the cylinder head 21. 3s
In Fig. 4, a crankshaft 23 having an axis extending in the vehicle-width direction is rotatably supported in the Crarkonse 19. A piston, not shown, is slidably fitted into a cylinder bore * 24 provided in the cylinder block 20. The piston is coupled. to the crankshaft 23 through a connecting rod 25 and a crankpin 26. °
: . | H112-2718-JP01(2012-216288) for Application >
An outer rotor 27 is secured to an end of the crankshaft 23 h protruding outward from a left side wall of the crankcase 19. An =” inner stator 28 forming a generator 29 in conjunction with the o c outer rotor 27 is attached to a generator cover 30 fastened to = the left side wall of the crankcase 19 to cover the generator 29. o
Az
The crankcase 19 houses a gear transmission mechanism 33 i that shifts in a stepwise fashion and transfers power from the on crankshaft 23 to a transmission output shaft 32 which has an axis parallel to the crankshaft 23 and is rotatably supported in the crankcase 19.
The gear transmission mechanism 33 includes first to Fifth gear trains Gl to G5 of a plurality of, for example, five, alternatively engageable shift positions between a transmission input shaft 31 having an axis parallel to the crankshaft 23 and rotatably supported by the crankcase 19, and the transmission output shaft 32 having an axis parallel to the transmission input shaft 31. :
A primary speed reduction gear mechanism 34, a damper spring 35 and a multiplate clutch 36 are interposed between a » right end of the transmission input shaft 31 projecting from the right crankcase half 19b in the crankcase 19 and the crankshaft 23, so that the rotational power is input from the crankshaft 23 through the primary speed reduction gear mechanism 34, the damper spring 35 and the multiplate clutch 36 to the transmission input
: - - | H112-2718-JP01(2012-216288) for Application . | | | | ’ | = shaft 31 when the multiplate clutch 36 is in power transmission ~ condition. A clutch cover 37 is fastened to the right crankcase - half 19b to cover the multiplate clutch 36. © po . jad
A drive sprocket 40 is mounted at a protruding end of the = transmission output shaft 32 protruding from the left crankcase V half 19a of the crankcase 19. On the other hand, as shown in Fig. _ 1, a driven sprocket 41 is mounted to the rear wheel WR. An [e endless drive chain 42 is wound around the drive sprocket 40 and o the driven sprocket 41. In addition, a sprocket cover 43 covering the drive sprocket 40 from lateral side is attached to a side face of the crankcase 19, in the embodiment, to an outer face of the left crankcase body 19a.
Additionally referring to Fig. 5, a motor housing cavity 45 is provided in an upper face of the crankcase 19 rearward of the cylinder block 20 to house a part of the starter motor 44 mounted in the crankcase 19, and a sensor mounting seat 47 is formed for mounting a vehicle-speed sensor 46 placed facing the outer periphery of a specific gear of the gear transmission mechanism 33. And, in the embodiment, the specific gear with the outer periphery facing the vehicle-speed sensor 46 is a drive gear 48 ’ fixed to the transmission input shaft 31 to form a part of the fifth gear train G5. “0 A gear power transmission mechanism 53 is mounted between the starter motor 44 and the crankshaft 23 between the left crankcase half 19a of the crankcase 19 and the generator 29. The
: B Co H112-2718-JP01(2012-216288) for Application gear power transmission mechanism 53 includes a driven gear 51 7 poi including a one-way clutch 54 interposed between a pinion 50 - mounted on an output shaft 49 of the starter motor 44 and the - foi outer rotor 27 of the generator 29 fixed to the crankshaft 23, Ce c and an intermediate gear (not shown) interposed between the o pinion 50 and the driven gear 51. wo
I
A sensor mounting cavity 55 is provided in the upper face = of the left crankcase half 19a of the crankcase 19 rearward of the motor housing cavity 45. The sensor mounting cavity 55 has an inner end at which the sensor mounting seat 47 is formed and an opening formed on a left side face of the crankcase 19. The sensor mounting seat 47 has an opening at an outer end of an insertion hole 56 through which the vehicle-speed sensor 46 is inserted to face the outer periphery of the drive gear 48. 25 . The vehicle-speed sensor 46 is attached in a fluid tight manner to the sensor mounting seat 47 by a bolt 58 such that an endless sealing member 57 is interposed between the sensor ; 20 mounting seat 47 and the vehicle-speed sensor 46. The vehicle- speed sensor 46 mounted on the sensor mounting seat 47 is surrounded with the starter motor 44, the sprocket cover 43 and the side wall of the sensor mounting cavity 55.
The sensor mounting cavity 55 is formed such that the sensor mounting seat 47 located at the inner end is situated upward of the bottom of the motor housing cavity 45 and the opening of the sensor mounting cavity 55 faces toward. the motor
; - | . H112-2718-JP01(2012-216288) for Application housing cavity 45 located forward of the sensor mounting cavity > ps 55. | x - . ®
The motor housing cavity 45 is formed to make it possible ea! for the starter motor 44 to slide in the axis direction between a = position where the pinion 50 provided on the output shaft 49 of the starter motor 44 is placed to mesh with the intermediate gear o 0 of the gear power transmission mechanism 53 for establishment of 5 the gear power transmission mechanism 53 and is fastened to the o crankcase 19 with bolts 59 as shown by the solid line in Fig. 3, and a position where the fastening to the crankcase 19 is released so that the pinion 50 is disengaged from the gear power transmission mechanism 53 (the position shown by the chain line in Fig. 3). The output shaft 49 of the starter motor 44 is placed closer to the vehicle-speed sensor 46 in the direction along the axis of the crankshaft 23.
On the other hand, a drive sprocket 60 is secured to the crankshaft 23 between the left crankcase half 19a and the driven gear 51 of the gear power transmission mechanism 53. A timing power transmission mechanism 62 including the drive sprocket 60 and a cam chain 61 wound around the drive sprocket 60 is placed 5 between the crankshaft 23 and a cam shaft (not shown) rotatably supported by the cylinder head 21. A chain tensioner 63 in sliding contact with an outer face of a slack portion of the cam chain 61 for tension of the cam chain 61 is attached to a rear : © wall of the cylinder block 20 with bolts 64.
Lo J H112-2718-JP01(2012-216288) for Application
CE
In addition, the chain tensioner 63 partially overlaps the oo po starter motor 44 as viewed in the plan view and is placed in a I position corresponding to the vehicle-speed sensor 46 in the = direction along the axis of the crankshaft 23. o -
Next, effects of the embodiment will be described. The sensor mounting cavity 55, having the inner end at which the - sensor mounting seat 47 is formed and the opening formed in the . crankcase 19 in the vicinity of the sprocket cover 43, is “ provided on the upper face of the crankcase 19 rearward of the motor housing cavity 45. Then, the vehicle-speed sensor 46 is installed in a fluid tight manner on the sensor mounting seat 47 in such a manner as to be surrounded on all sides by the starter oo motor 44, the sprocket cover 43 and the side wall of the sensor mounting cavity 55. As a result, it is possible to install the vehicle-speed sensor 46 in the upper face of the crankcase 19 so © 25 that the vehicle-speed sensor 46 is protected by simple structure without a dedicated protective cover. [
Since the sensor mounting cavity 55 is formed to have the opening facing toward the motor housing cavity 45 located forward of the sensor mount ing cavity 55, maintenance can be easily 5 performed on the vehicle-speed sensor 46 by removing the starter motor 44 from the crankcase 19. Also, since the sensor mounting seat 47 is located above the bottom of the motor housing cavity 45, the vehicle-speed sensor 46 is capable of being protected ® from rainwater entering the motor housing cavity 45. i
: ) oo H112-2718-JP01(2012-216288) for Application - | | | | | ic
In addition, the sensor mounting seat 47 is formed to be 7 . inclined downward toward the rear, the rainwater entering the ™ sensor mounting cavity 55 can be collected into a rear portion of = the sensor mounting cavity 55 in order to effectively discharge on the rainwater from a side face of the crankcase 19 to the outside = by use of the inertia while the motorcycle is moving. »
J
The motor housing cavity 45 is formed to make it possible = for the starter motor 44 to slide in the axis direction between a 5 position where the pinion 50, which is provided on the output
Shaft 49 of the starter motor 44 and forms a part of the gear power transmission mechanism 53 provided between the starter motor 44 and the crankshaft 23, is placed to establish the gear 50 Power transmission mechanism 53 and fastened to the crankcase 19, and a position where the fastening to the crankcase 19 is released so that the pinion 50 is disengaged from the gear power 25 transmission mechanism 53. And, the output shaft 49 of the starter motor 44 is placed in the vicinity of the vehicle-speed sensor 46 in the direction along the axis of the crankshaft 23.
As a result, when the starter motor 44 is slid, only a very small + area in the length in the axis direction of the starter motor 44 moves across in front of the vehicle-speed sensor 46, so that the starter motor 44 can be smoothly moved.
Further, the chain tensioner 63 for applying tension to the cam chain 61 is mounted to the rear wall of the cylinder block 20 0 in a position in which a part of the chain tensioner 63 overlaps the starter motor 44 when viewed in a top view and also which 14 i
H112-2718-JP01(2012-216288) for Application corresponds to the vehicle-speed sensor 46 in the direction along @ the axis of the crankshaft 23. Because of this, when the starter . motor 44 is mounted/dismounted, the chain tensioner 63 restrains . the starter motor 44 from displacing in the up-and-down direction, ‘ thus restraining the starter motor 44 from contact with the H ye vehicle-speed sensor 46. »
Jo 0 Up to this point the embodiment according to the present = invention have been described, but the present invention 1s not - limited to the aforementioned embodiment and various changes in design can be made without departing from the invention as set forth in the claims. [Reference Signs List] 20 . 16 .. Engine body 19 .. Crankcase 20 .. Cylinder block 23 .. Crankshaft 32 .. Transmission output shaft : 33 .. Gear transmission mechanism 40 .. Drive sprocket 42 .. Drive chain : : 43 .. Sprocket cover 44 .. Starter motor : : 45 .. Motor housing cavity Co 46 .. Vehicle-speed sensor 40 } 47 .. Sensor mounting seat 48 .. Drive gear as a specific gear
: . H112-2718-JP01(2012-216288) for Application : Jc 49 .. Output shaft : * bot ~~ 50 .. Pinion bod 53 .. Gear power transmission mechanism - er 55 .. Sensor mounting cavity ti 61 .. Cam chain ja
Li 63 .. Chain tensioner »
Sm "F .. Body frame
WR .. Rear wheel +
Fd . bo.

Claims (4)

  1. . . | el . cece PROPERTY Orel 2017 oF CC - H112-2718-PHOL (JP Patent No. Sos 33128 aims
    [Claim 1] 5 fo A vehicle-speed-sensor mounting structure in a motorcycle, we the motorcycle being configured in such a manner that an engine = body (16) that includes a crankcase (19) rotatably supporting a - crankshaft (23) and a cylinder block (20) connected to a front “ portion of the crankcase (19) and rising upward is mounted on a I) body frame (F), a gear transmission mechanism (33) that is = capable of shifting in a stepwise fashion and then transferring ol rotational power from the crankshaft (23) to a transmission output shaft (32) housed rotatably in the crankcase (19) is housed in the crankcase (19) , a drive sprocket (40) on which a drive chain (42) for transferring power to a rear wheel (WR) is wound is mounted at an end of the transmission output shaft (32) projecting from a side face of the crankcase (19), a motor housing recessed portion (4b) and a sensor mounting seat (47) are provided to an upper face of the crankcase (19) reaward of the cylinder block (20), the motor housing recessed portion (45) housing a lower half portion of a starter motor (44) mounted to the crankcase (19), the sensor mounting seat (47) being formed to mount a vehicle-speed sensor (46) placed oppositely to an outer periphery of a specific gear (48) of the gear transmission mechanism (33), and a sprocket cover (43) for covering the drive sprocket (40) is provided on the side face of the crankcase (19), wherein a sensor mounting recessed portion (55) is provided in the upper face of the crankcase (19) reaward of the motor housing cavity (45) in order to arrange the sensor mounting seat (47) in a position higher than a bottom of the motor housing recessed portion (45) and also in order to open a side wall : toward the motor housing recessed portion (45) located in front of the housing recessed portion (45), the sensor mounting rt recessed portion (55) having the bottom forming the sensor Po mounting seat (47) and the side wall opened to the side face of oo the crankcase (19), and = The vehicle-speed sensor (46) is mounted in a fluid tight Lt manner on the sensor mounting seat (47) in such a manner as to oY J be surrounded by the starter motor (44), the sprocket cover (43) and the side wall of the sensor mounting recessed portion (55). = Pod
  2. [Claim 2] 1 Je The vehicle-speed-sensor mounting structure in a motorcycle according to claim 1, wherein the sensor mounting seat (47) is formed to be inclined downward toward the rear. :
  3. [Claim 3] The vehicle-speed-sensor mounting structure in a motorcycle according to claim 1 or 2, Wherein the motor housing recessed portion (45) is formed to enable the starter motor (44) to slide in an axis direction between a position where a pinion (50), which is provided on an output shaft (49) of the starter motor (44) and forms a part of the gear power transmission mechanism (53) provided between the starter motor (44) and the crankshaft (23), is placed to © establish the gear power transmission mechanism (53) and fastened to the crankcase (19), and a position where the fastening to the crankcase (19) is released to disengage the pinion (50) from the gear power transmission mechanism (53), and The output shaft (49) of the starter motor (44) is placed in the vicinity of the vehicle-speed sensor (46) in a direction along an axis of the crankshaft (23).
  4. [Claim 4] :
    po The vehicle-speed-sensor mounting structure in a motorcycle bt according to claim 3, wherein a chain tensioner (63) for N applying tension to a cam chain (61) is mounted to a rear wall — of the cylinder block (20) in a position in which the chain oe tensioner (63) partially overlaps the starter motor (44) in a o plan view and also which corresponds to the vehicle-speed sensor (46) in the direction along the axis of the crankshaft (23). 5 = (5 y Lr
PH12013000206A 2012-09-28 2013-07-02 Structure of mounting vehicle-speed sensor in motorcycle PH12013000206B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012216288A JP5951431B2 (en) 2012-09-28 2012-09-28 Mounting structure of a vehicle speed sensor in a motorcycle

Publications (2)

Publication Number Publication Date
PH12013000206A1 PH12013000206A1 (en) 2015-02-02
PH12013000206B1 true PH12013000206B1 (en) 2018-03-16

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CN (1) CN203767012U (en)
AR (1) AR092664A1 (en)
BR (1) BR102013024805B1 (en)
MX (1) MX350508B (en)
PH (1) PH12013000206B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6029514B2 (en) * 2013-03-29 2016-11-24 本田技研工業株式会社 Crankcase structure of internal combustion engine
CA2922810C (en) * 2013-09-11 2018-04-03 Honda Motor Co., Ltd. Vehicle power unit
CN111051669B (en) * 2017-09-08 2021-12-17 本田技研工业株式会社 Internal combustion engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009067336A (en) * 2007-09-18 2009-04-02 Yamaha Motor Co Ltd Motorcycle
JP5091062B2 (en) * 2008-09-02 2012-12-05 本田技研工業株式会社 Vehicle engine
JP5546302B2 (en) * 2010-03-19 2014-07-09 本田技研工業株式会社 Vehicle speed sensor mounting structure

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CN203767012U (en) 2014-08-13
AR092664A1 (en) 2015-04-29
MX2013011164A (en) 2014-03-27
MX350508B (en) 2017-09-07
BR102013024805A2 (en) 2015-08-11
PH12013000206A1 (en) 2015-02-02
BR102013024805B1 (en) 2021-09-21
JP2014069665A (en) 2014-04-21
JP5951431B2 (en) 2016-07-13

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