CN102032005B - Connecting construction of cam sprocket - Google Patents
Connecting construction of cam sprocket Download PDFInfo
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- CN102032005B CN102032005B CN 201010283644 CN201010283644A CN102032005B CN 102032005 B CN102032005 B CN 102032005B CN 201010283644 CN201010283644 CN 201010283644 CN 201010283644 A CN201010283644 A CN 201010283644A CN 102032005 B CN102032005 B CN 102032005B
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- sprocket wheel
- cam sprocket
- camshaft
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Abstract
The invention provides a connecting construction of a cam sprocket capable of easily performing positioning of a cam sprocket and a camshaft. The connecting structure of a cam sprocket connects a cam sprocket to an end surface of a camshaft, and the cam sprocket is used for erecting a timing chain transmitting power of a crankshaft to the camshaft, wherein, on the cam shaft, a first positioning pin hole and bolt holes are formed in a communication from the end surface of the camshaft toward the center of the camshaft on a rotating central line; a second positioning pin hole is formed at the center of the cam sprocket; a camshaft and a cam sprocket are positioned via cylindrical positioning pins embedded into the first and second positioning pin holes, and are connected via bolts through the inner periphery of the positioning pins and screwed with the bolt holes.
Description
Technical field
The present invention relates to for the connection assembly that cam sprocket wheel (カ system ス プ ロ ケ Star ト) is attached to the cam sprocket wheel of camshaft end face, this cam sprocket wheel is used for setting up the timing chain (タ イ ミ Application グ チ エ one Application) of the transmission of power of bent axle to camshaft.
Background technique
In the prior art, knownly wait in the vehicle two-wheeled, the cam sprocket wheel is attached to the camshaft end face, establish timing chain and the structure of the transmission of power of bent axle to the camshaft in that bent axle and this cam sprocket wheel are added.A kind of connection assembly of cam sprocket wheel is disclosed in patent documentation 1, it begins to form bolt hole at the rotation centerline of camshaft from the camshaft end face, and, form the embedding part chimeric with the interior week of cam sprocket wheel in camshaft end face periphery, make chimeric and definite the two the position of cam sprocket wheel and this embedding part, simultaneously, with cover the cam sprocket wheel is pushed against the camshaft end face from the outer side surface side of cam sprocket wheel, by the bolt that runs through cover and screw up in bolt hole cam sprocket wheel and camshaft are linked.
Patent documentation 1: Japanese kokai publication hei 5-171905 communique
Summary of the invention
But, in the connection assembly of the cam sprocket wheel of patent documentation 1 record, form bolt hole at the rotation centerline of camshaft, and form the embedding part chimeric with the interior week of cam sprocket wheel in camshaft end face periphery, thereby must carry out respectively two processing, make difficulty.
The present invention proposes in view of above-mentioned problem, and purpose provides a kind of connection assembly of easy to manufacture, the cam sprocket wheel that can position reliably cam sprocket wheel and camshaft.
In order to reach above-mentioned purpose, the connection assembly of the cam sprocket wheel of first aspect present invention is attached at the camshaft end face to the cam sprocket wheel, and described cam sprocket wheel is used for setting up the timing chain of the transmission of power of bent axle to camshaft, it is characterized in that:
On described camshaft, on rotation centerline, form communicatively the first positioning pin hole and bolt hole towards the camshaft center from described camshaft end face;
On described cam sprocket wheel, in be formed centrally the second positioning pin hole;
Described camshaft and described cam sprocket wheel are by positioning with the chimeric locating stud cylindraceous of described the first and second positioning pin holes, and the bolt that screws up by the described bolt hole of interior Zhou Bingyu that runs through described locating stud links.
And, being characterized as of the connection assembly of the cam sprocket wheel of second aspect record, on the structure foundation of first aspect record, be provided with the rotation restriction section that is consisted of by recess and teat, described recess be formed on described camshaft described camshaft end face the spinning center line radial outside and towards described cam sprocket wheel side opening, described teat be formed on described cam sprocket wheel with in opposite directions a side of described camshaft and chimeric with described recess.
And, being characterized as of the connection assembly of the cam sprocket wheel of third aspect record, on the structure foundation of second aspect record, described recess is the keyway in the peripheral openings of described camshaft.
And, being characterized as of the connection assembly of the cam sprocket wheel of fourth aspect record, on the structure foundation of second aspect record, described teat forms by extruding from the another side with that a side described side thereof opposite described cam sprocket wheel.
And, being characterized as of the connection assembly of the cam sprocket wheel of the 5th aspect record, on the structure foundation of first aspect record, described bolt hole forms by carrying out cutting from described camshaft end face, and described the first positioning pin hole forms by the camshaft end face side of described bolt hole being appended processing.
And, being characterized as of the connection assembly of the cam sprocket wheel of the 6th aspect record, on the structure foundation of second aspect record, described recess is in the peripheral openings of described camshaft, and described teat is projected into outside diameter from described recess.
And being characterized as of the connection assembly of the cam sprocket wheel of the 7th aspect record on the structure foundation of second aspect record, forms two slotted holes at described cam sprocket wheel, and described two slotted holes and described teat are configured on the straight line by rotating center.
And, being characterized as of the connection assembly of the cam sprocket wheel of eight aspect record, on the structure foundation of first aspect record, described camshaft rotation is supported on the cylinder head freely, be provided with the cover of the opening that covers described cylinder head in described cylinder head, be provided with to prevent the bolt removal stop section of described bolt falling at described cover.
And, being characterized as of the connection assembly of the cam sprocket wheel of the 9th aspect record, on the structure foundation of each record in aspect first～the 6th, described camshaft is supported on the cylinder head by bearing rotary freely, described cylinder head is positioned at described bearing top, side towards described cam sprocket wheel on described cylinder head is provided with opening portion, is provided with jig fastening section at described opening portion, and described jig fastening section is to carrying out fastening from the outside jig that engages with described cam sprocket wheel.
And, being characterized as of the connection assembly of the cam sprocket wheel of the tenth aspect record, on the structure foundation of record aspect the 9th, described cam sprocket wheel is provided with a plurality of engagement portions, described jig and described a plurality of engagement portions and described jig fastening section engage, thereby it is involutory that the phase place of piston and regulation is carried out the position.
Connection assembly according to the cam sprocket wheel of first aspect present invention record can easily form the first positioning hole and bolt hole in same operation.And, can make linking department and positioning part path, camshaft is attenuated.And, can by locating stud in advance with the state of camshaft and cam sprocket wheel location under clamping bolt, can prevent that the cam sprocket wheel is fixed on the situation on the camshaft prejudicially.And then, can reduce manufacture cost by using bolt and the such universal component of locating stud.
Connection assembly according to the cam sprocket wheel of second aspect present invention record can make the rotation structure of confining part simple.
In addition, according to the connection assembly of the cam sprocket wheel of third aspect record, can use high-precision processing technique.
In addition, according to the connection assembly of the cam sprocket wheel of fourth aspect record, can not increase number of components and can make simple in structure.
In addition, the connection assembly according to the cam sprocket wheel of the 5th aspect record can carry out cutting continuously from same direction, can reduce the machining period number.
In addition, the connection assembly according to the cam sprocket wheel of the 6th aspect record carries out operation while can confirm the position of teat in assembling cam sprocket wheel, thereby has improved assembling performance.
In addition, according to the connection assembly of the cam sprocket wheel of the 7th aspect record, the position of teat in the time of can recognizing easily assembling cam sprocket wheel.
In addition, the connection assembly according to the cam sprocket wheel of eight aspect record can prevent bolt falling.
In addition, according to the connection assembly of the cam sprocket wheel of the 9th aspect record, can improve the assembling performance of cam sprocket wheel.
In addition, according to the connection assembly of the cam sprocket wheel of the tenth aspect record, can improve the assembling performance of internal-combustion engine.
Description of drawings
Fig. 1 is the partial section of observing the internal-combustion engine of the connection assembly that has adopted the cam sprocket wheel that the present invention relates to from the side.
Fig. 2 is the partial longitudinal section figure of internal-combustion engine.
Fig. 3 is the enlarged view of the A part of Fig. 2.
Fig. 4 is the profile of camshaft.
Fig. 5 is the profile of cam sprocket wheel.
Fig. 6 is another routine partial section of the connection assembly of the cam sprocket wheel that the present invention relates to of expression.
Fig. 7 observes the profile that the opening portion of Fig. 6 is covered the cylinder head after pulling down from the side.
Description of reference numerals
1 internal-combustion engine
14 pistons
2 bent axles
3 camshafts
33 camshaft end faces
35 positioning pin holes (the first positioning pin hole)
36 bolts hole
37 keyways (recess)
4 driven sprockets (cam sprocket wheel)
40 positioning pin holes (the second positioning pin hole)
41 sides (side)
42 sides (another side)
44 teats
47 slotted holes (engagement portion)
48 circular holes (engagement portion)
5 driving sprocket wheels
53 cylinder head
The 53b opening portion
53c jig fastening section
54 valve mechanism cover (cover)
54b bolt removal stop section
57a, 57b bearing
6 camshaft chains (timing chain)
60 opening portions lids (lid)
7 locating studs
8 bolts
9 rotation restriction sections
The P rotation centerline
Q is by the straight line of rotating center
Embodiment
The following describes one embodiment of the present of invention that picture in picture shows.Fig. 1 is the partial section of observing the internal-combustion engine of the connection assembly that has adopted the cam sprocket wheel that the present invention relates to from the side, Fig. 2 is the partial longitudinal section figure of internal-combustion engine, Fig. 3 is the enlarged view of the A part of Fig. 2, and Fig. 4 is the profile of camshaft, and Fig. 5 is the profile of cam sprocket wheel.Among the figure, along the observed direction of driver, front being expressed as " Fr ", after be expressed as " Rr ", the right side be expressed as " R ", left-handed watch be shown " L ", on be expressed as " U ", be expressed as " D " down.
Lift-launch is at not shown internal-combustion engine 1 on two-wheeled, as shown in Figure 1, for cylinder block 51 and cylinder head 53 from the place ahead the quartastroke engine of the air-cooling type of points upwards slightly.
As depicted in figs. 1 and 2, internal-combustion engine 1 is provided with by connecting rod 11 and wrist pin 13 and is connected to piston 14 on the bent axle 2, the cylinder 52 interior slips that piston 14 can be located at cylinder block 51.Cylinder head 53 and valve mechanism cover 54 are fixed on the front of cylinder block 51, are formed the firing chamber of combustion mixture body by cylinder head 53, cylinder 52 and piston 14.
On cylinder head 53, setting the air inlet of the mixed gas that carries out towards the firing chamber or the not shown valve that exhaust is controlled, and spark plug 56.The rotation that is supported on the camshaft 3 on the cylinder head 53 by axle swings intake rocker or exhaust rocker arm, thus the switching of control valve.Camshaft 3 at one end is provided with driven sprocket 4 (cam sprocket wheel), at driven sprocket 4 and be located at the camshaft chain 6 (timing chain) that is setting up annular between the driving sprocket wheel 5 of an end of bent axle 2.And, the rotation of bent axle 2 is delivered to camshaft 3 by the camshaft chain 6 that is erected on driving sprocket wheel 5 and the driven sprocket 4.
More specifically describe.Bearing 57a, the 57b of camshaft 3 by pairing left and right rotates freely that pivot props up on cylinder head 53, integrally formed intake cam 31 and exhaust cam 32 on this camshaft 3.Among Fig. 2, in the left forward side of camshaft 3, show roller supporting portion 61a and the roller 62a of intake rocker.And, in the right forward side of camshaft 3, show roller supporting portion 61b and the roller 62b of exhaust rocker arm.Roller 62a, 62b roll and contact with intake cam 31, exhaust cam 32 respectively.
At this, the camshaft 3 of present embodiment and the connection assembly of driven sprocket 4 are described.
As shown in Figure 3 and Figure 4, on camshaft 3, on rotation centerline P, form communicatively positioning pin hole 35 and the diameter bolt hole 36 less than this positioning pin hole 35 towards the camshaft center from a distolateral camshaft end face 33.This positioning pin hole 35 and bolt hole 36 are formed on the concentric circle, therefore, form bolt hole 36 by cutting first, then form positioning pin hole 35 by appending processing (cutting).The internal diameter of positioning pin hole 35 is set to slightly larger than the radial dimension of the wall thickness sum of the internal diameter of bolt hole 36 and locating stud cylindraceous 7.Rotation centerline P is set at and the involutory surface of cylinder head 53 and valve mechanism cover 54 equal position (with reference to Fig. 1) roughly in the present embodiment.
Such as Fig. 3 and shown in Figure 5, on driven sprocket 4, the positioning pin hole 40 that positioning pin hole on the heart is provided with radial dimension and is formed on camshaft 3 therein 35 is identical.The axial length that obtains after the positioning pin hole 35 of camshaft 3 aligns with the positioning pin hole 40 of driven sprocket 4 is set to slightly longer than the axial length of locating stud 7.Chimeric locating stud 7 cylindraceous in positioning pin hole 35 on being formed on camshaft 3 and the positioning pin hole 40 that is formed on the driven sprocket 4 positions camshaft 3 and driven sprocket 4.And, in the camshaft 3 that has been carried out in advance the location by locating stud 7 and driven sprocket 4, insert a bolt 8 along rotation centerline P.The internal diameter of locating stud 7 is set to slightly larger than the internal diameter of bolt hole 36, and therefore, bolt 8 runs through the inner peripheral surface of locating stud 7 and screws up with the bolt hole 36 that is formed on the camshaft 3, thus driven sprocket 4 and camshaft 3 is linked.At this moment, the bolt head 80 by bolt 8 is pressed to camshaft end face 33 to driven sprocket 4.
In addition, be provided with keyway 37 at camshaft end face 33 openings at the outer circumferential face of camshaft 3, and, on driven sprocket 4, radial outside at spinning center line P, be provided with from outstanding with camshaft 3 side 41 in opposite directions and be fitted to the teat 44 of keyway 37, consist of rotation restriction section 9 by keyway 37 and teat 44.That is, by making the teat that is formed on the driven sprocket 4 and the keyway 37 that is formed on the camshaft 3 chimeric, forbid relatively rotating of camshaft 3 and driven sprocket 4, by the power that transmits from camshaft chain 6, driven sprocket 4 and camshaft 3 are rotated integratedly.Teat 44 with the chimeric state of keyway 37 under side-prominent to external diameter from keyway 37.
From with the side 42 of side 41 opposite those sides of driven sprocket 4, push out to give prominence to by punching press, semi-piercing (Ha one Off ピ ア ス) etc. and form teat 44.Therefore, with the side 42 of side 41 opposition sides of driven sprocket 4 form groove 45 with position corresponding to teat 44, the part of this groove 45 is with overlapping diametrically with the integrally formed seat surface 81 of the bolt head 80 of bolt 8.And the outside diameter in the outside diameter of the teat 44 of driven sprocket 4 and the position behind teat 44 Rotate 180s ° is provided with slotted hole 47, at two slotted holes 47 of straight line Q configuration and the teat 44 (with reference to Fig. 5) by rotation centerline P.When will limit the rotation and swing of camshaft 3 and driven sprocket 4 in when maintenance etc., can utilize slotted hole 47 restricting rotations and swing.And, can make the amount lightweight of driven sprocket 4 corresponding slotted holes 47.
When camshaft 3 combustion motors 1 are assembled, at first bearing 57a, 57b are installed in the periphery of camshaft 3, insert logical and be fixed on the cylinder head 53 from being formed on escape hole 53a on the cylinder head 53.And, the teat 44 of driven sprocket 4 and chimeric at the keyway 37 of camshaft end face 33 upper sheds, simultaneously, the position of the positioning hole 35 of camshaft 3 and the positioning hole 40 of driven sprocket 4 is combined chimeric locating stud 7, bolt 8 is run through the inner peripheral surface of locating stud 7 and screw up and bolt is fixed with the bolt hole 36 that is formed on the camshaft 3, thus, driven sprocket 4 is attached on the camshaft 3.Then, with grommet (グ ロ メ ッ ト) 58 escape hole 53a is clogged, valve mechanism cover 54 is fixed on the cylinder head 53 from the place ahead.Thus, the camshaft 3 of one having been installed driven sprocket 4 is assembled in the internal-combustion engine 1.As shown in Figure 2, be provided with bolt removal stop section 54b in valve mechanism cover 54, this bolt removal stop section 54b be positioned at driven sprocket 4 near, and rearward extend and overlapping diametrically with the bolt head 80 of bolt 8 from sidewall 54a.
As described above, according to present embodiment, on camshaft 3, on rotation centerline P, form communicatively positioning pin hole 35 and bolt hole 36 towards the camshaft center from camshaft end face 33, therefore, can in same operation, easily form positioning pin hole 35 and bolt hole 36.If in other operation, form and again to carry out the involutory of center line, in same operation, form involutory positioning pin hole 35 and the bolt hole 36 that just can correctly form camshaft 3 that does not then need again to carry out center line, can correctly carry out with locating stud 7 location of driven sprocket 4 and camshaft 3.And, can make joint and positioning part path, camshaft 3 is attenuated.
And, can be under the state of by locating stud 7 camshaft 3 and driven sprocket 4 having been located in advance fixing bolt 8, can prevent that driven sprocket 4 is fixed on the camshaft 3 prejudicially.And then, bolt 8 and locating stud 7 such universal components can be used and manufacture cost can be reduced.
In addition, according to present embodiment, by the keyway 37 in the peripheral openings of camshaft 3, and the teat 44 that is formed on driven sprocket 4 and camshaft 3 side 41 in opposite directions consists of rotation restriction sections 9, therefore, can be prevented by simple structure the relative rotation of camshaft 3 and driven sprocket 4.When forming keyway 37, can continue to use high-precision processing technique.And nonessential periphery at camshaft 3 forms keyway 37, also can make radial outside at rotation centerline P become the recess chimeric with teat 44 at driven sprocket 4 side openings.Also can prevent thus camshaft 3 and driven sprocket 4 relative rotations.
In addition, according to present embodiment, the teat 44 of driven sprocket 4 from the side 42 of driven sprocket 4 towards the side 41 thrusters extrude and form, therefore, can not increase number of components and can make simple in structure.In addition, can by being carried out punch process, plate easily make driven sprocket 4.
In addition, according to present embodiment, bolt hole 36 forms by camshaft end face 33 is carried out cutting, camshaft end face 33 sides of bolt hole 36 are appended processing and formed positioning pin hole 35, therefore, can carry out continuously cutting from same direction, can reduce the machining period number.
In addition, according to present embodiment, the teat 44 of driven sprocket 4 with the chimeric state of keyway 37 under side-prominent to external diameter from keyway 37, therefore, carry out operation while can confirm the position of teat 44 during assembling driven sprocket 4, thereby improved assembling performance.
In addition, according to present embodiment, form 47, two slotted holes 47 of two slotted holes and teat 44 at driven sprocket 4 and be configured on the straight line Q by rotation centerline P, therefore, can recognize easily the position of teat 44 during assembling driven sprocket 4.
In addition, according to present embodiment, be provided with bolt removal stop section 54b in valve mechanism cover 54, therefore, also can stop coming off of bolt 8 even if bolt 8 becomes flexible.And, since bolt removal stop section 54b be configured in driven sprocket 4 near, therefore, outside the effect with bolt anti-avulsion, also have the effect that is easy to reclaim the spittle machine oil that driven sprocket 4, camshaft chain 6 splash.
The other example of the connection assembly of the cam sprocket wheel that the present invention relates to is described below with reference to Fig. 6 and Fig. 7.Fig. 6 is another routine partial section of the connection assembly of the cam sprocket wheel that the present invention relates to of expression, and Fig. 7 is the profile of observing from the side the cylinder head of Fig. 6.
In the present embodiment, the involutory surface 55 of cylinder head 53 and valve mechanism cover 54 is positioned at the place ahead (tops on piston 14 glide directions) of the bearing 57a of supporting cam wheel axle 3, sidewall in cylinder head 53 forms and driven sprocket 4 opening portion 53b in opposite directions, with bolt 61 opening portion lid 60 is installed at opening portion 53b, it is firmly inaccessible with opening portion 53 that this opening portion lid 60 opening portion 53 from outer side covers.In the present embodiment, valve mechanism cover 54 and opening portion lid 60 consist of respectively the lid of the opening that covers cylinder head 53 of the present invention.And, forming a pair of circular hole 48 at driven sprocket 4, this a pair of circular hole 48 clips groove 45 symmetries with respect to rotation centerline P in groove 45 sides, and is not formed on and is point-symmetric position with respect to rotation centerline P.Other structure is identical with above-mentioned mode of execution, and also the description thereof will be omitted therefore to give identical reference character.
Extend at opening portion lid 60 near the sprocket wheel removal stop section 60b that is projected into from inner side surface 60a the driven sprocket 4 is set, and then, integratedly bolt removal stop section 60c extension is set near the bolt 8 with sprocket wheel removal stop section 60b.Thus, also can stop bolt 8 to come off even if spiral shell inspection 8 is become flexible, and then stop coming off of driven sprocket 4.The front end of sprocket wheel removal stop section 60b is lacked (a＜b), perhaps be set to a＜1.5mm to axial length (highly) b that is set to than teat 44 apart from a of the side 42 of driven sprocket 4.In the occasion of a＜1.5mm, can supply to driven sprocket 4 to the machine oil that is accumulated in sprocket wheel removal stop section 60b from sprocket wheel removal stop section 60b by the viscosity of machine oil.
Form the jig fastening 53c of section that is projected into the inboard from edge part at opening portion 53b.Thus, when pulling down opening portion lid 60, make shaft-like jig from the outside, when for example two pins engages with the circular hole 48 of driven sprocket 4, sell and the jig fastening 53c of section fastening and the rotation of driven sprocket 4 is limited.Can improve thus assembling performance and maintenance property.And the position of a pair of circular hole 48 and the jig fastening 53c of section is set to, and makes at the jig that engages with circular hole 48 to be in compression top center by the piston 14 under the state of the jig fastening 53c of section fastening, is also used during the phase place when assembling driven sprocket 4 is involutory.
The invention is not restricted to above-mentioned mode of execution, can carry out appropriate variations, improvement etc.
For example, keyway 37 and teat 44 can be can chimeric arbitrarily shape with restricting rotation.Equally, slotted hole 47, circular hole 48 also can be shape arbitrarily, and then, be not limited to two, also can be set to any number.
Claims (10)
1. the connection assembly of a cam sprocket wheel, the connection assembly of described cam sprocket wheel is attached at the camshaft end face to the cam sprocket wheel, and described cam sprocket wheel is used for setting up the timing chain of the transmission of power of bent axle to camshaft, it is characterized in that:
On described camshaft, on rotation centerline, form communicatively the first positioning pin hole and bolt hole towards the camshaft center from described camshaft end face;
On described cam sprocket wheel, in be formed centrally the second positioning pin hole;
Described camshaft and described cam sprocket wheel are by positioning with the chimeric locating stud cylindraceous of described the first and second positioning pin holes, and the bolt that screws up by the described bolt hole of interior Zhou Bingyu that runs through described locating stud links.
2. the connection assembly of cam sprocket wheel as claimed in claim 1, it is characterized in that, be provided with the rotation restriction section that is consisted of by recess and teat, described recess be formed on described camshaft described camshaft end face the spinning center line radial outside and towards described cam sprocket wheel side opening, described teat be formed on described cam sprocket wheel with in opposite directions a side of described camshaft and chimeric with described recess.
3. the connection assembly of cam sprocket wheel as claimed in claim 2 is characterized in that, described recess is the keyway in the peripheral openings of described camshaft.
4. the connection assembly of cam sprocket wheel as claimed in claim 2 is characterized in that, described teat forms by extruding from the another side with that a side described side thereof opposite described cam sprocket wheel.
5. the connection assembly of cam sprocket wheel as claimed in claim 1, it is characterized in that, described bolt hole forms by carrying out cutting from described camshaft end face, and described the first positioning pin hole forms by the camshaft end face side of described bolt hole being appended processing.
6. the connection assembly of cam sprocket wheel as claimed in claim 2 is characterized in that, described recess is in the peripheral openings of described camshaft, and described teat is projected into outside diameter from described recess.
7. the connection assembly of cam sprocket wheel as claimed in claim 2 is characterized in that, forms two slotted holes at described cam sprocket wheel, and described two slotted holes and described teat are configured on the straight line by rotating center.
8. the connection assembly of cam sprocket wheel as claimed in claim 1, it is characterized in that, the rotation of described camshaft is supported on the cylinder head freely, is provided with the cover of the opening that covers described cylinder head in described cylinder head, is provided with to prevent the bolt removal stop section of described bolt falling at described cover.
9. such as the connection assembly of each the described cam sprocket wheel in the claim 1～6, it is characterized in that, described camshaft is supported on the cylinder head by bearing rotary freely, described cylinder head is positioned at described bearing top, side towards described cam sprocket wheel on described cylinder head is provided with opening portion, be provided with jig fastening section at described opening portion, described jig fastening section is to carrying out fastening from the outside jig that engages with described cam sprocket wheel.
10. the connection assembly of cam sprocket wheel as claimed in claim 9 is characterized in that, described cam sprocket wheel is provided with a plurality of engagement portions, and described jig and described a plurality of engagement portions and described jig fastening section engage, thereby it is involutory that the phase place of piston and regulation is carried out the position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009224853A JP5362508B2 (en) | 2009-09-29 | 2009-09-29 | Cam sprocket fastening structure |
| JP2009-224853 | 2009-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032005A CN102032005A (en) | 2011-04-27 |
| CN102032005B true CN102032005B (en) | 2013-04-17 |
Family
ID=43885383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010283644 Active CN102032005B (en) | 2009-09-29 | 2010-09-10 | Connecting construction of cam sprocket |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5362508B2 (en) |
| CN (1) | CN102032005B (en) |
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| JPS62199515U (en) * | 1986-06-09 | 1987-12-18 | ||
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| JP2519127Y2 (en) * | 1991-08-02 | 1996-12-04 | ダイハツ工業株式会社 | Camshaft timing adjusting device for internal combustion engine |
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| JPH0874523A (en) * | 1994-09-01 | 1996-03-19 | Daihatsu Motor Co Ltd | Bearing device of cam shaft in internal combustion engine |
| JP3265979B2 (en) * | 1996-04-11 | 2002-03-18 | トヨタ自動車株式会社 | Valve timing control device for internal engine |
| JPH1182158A (en) * | 1997-09-04 | 1999-03-26 | Fuji Heavy Ind Ltd | Ohc engine |
| JP2003239800A (en) * | 2002-02-15 | 2003-08-27 | Yamaha Motor Co Ltd | Engine for small two wheeler |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5495776A (en) * | 1993-11-01 | 1996-03-05 | Cloyes Gear & Products, Inc. | Cam shaft timing adjustment device |
| JP2002285906A (en) * | 2001-03-27 | 2002-10-03 | Kawasaki Heavy Ind Ltd | Positioning structure for camshaft of engine |
| CN101139941A (en) * | 2006-09-07 | 2008-03-12 | 光阳工业股份有限公司 | Engine timing sprocket fixing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011074784A (en) | 2011-04-14 |
| CN102032005A (en) | 2011-04-27 |
| JP5362508B2 (en) | 2013-12-11 |
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