JPH0359405U - - Google Patents
Info
- Publication number
- JPH0359405U JPH0359405U JP12070989U JP12070989U JPH0359405U JP H0359405 U JPH0359405 U JP H0359405U JP 12070989 U JP12070989 U JP 12070989U JP 12070989 U JP12070989 U JP 12070989U JP H0359405 U JPH0359405 U JP H0359405U
- Authority
- JP
- Japan
- Prior art keywords
- eccentric
- camshaft
- eccentric collar
- cam drive
- drive member
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
第１図〜第３図は本出願前に出願された本出願
人にかかる可変バルブタイミング機構を示すもの
であり、第１図は要部縦断面図、第２図はその要
部分解斜視図、第３図はカムシヤフト等の係合突
起が偏心カラーの挾持溝に嵌合している状態を示
す図である。第４図〜第７図は本考案に係る内燃
機関の可変バルブタイミング機構の第１実施例を
示すものであり、第４図は要部縦断側面図、第５
図は要部斜視図、第６図はカムシヤフト等の係合
突起が偏心カラーの挾持溝に嵌合している状態を
示す斜視図、第７図は同側面図である。第８図〜
第１０図は本考案の第２実施例を示すものであり
、第８図は係合突起の偏心カラー挾持溝への嵌合
状態を示す側面図、第９図は第８図の−線に
沿う断面図、第１０図は揺動部材単独の側面図で
ある。
７……中空カムシヤフト、８……カム、９，１
５……係合突起、１３……カムギヤ（カム駆動部
材）、１８……偏心シヤフト、１９……偏心部、
２１……偏心カラー、２２，２３……挾持溝、４
１，４２……セラシプレート（揺動部材）、４５
……圧縮コイルスプリング（弾性部材）、５０…
…揺動部材、５８……圧縮コイルスプリング（弾
性部材）。
Figures 1 to 3 show a variable valve timing mechanism filed by the applicant before this application, with Figure 1 being a vertical sectional view of the main part, and Figure 2 being an exploded perspective view of the main part. , FIG. 3 is a diagram showing a state in which the engaging protrusion of the camshaft or the like is fitted into the clamping groove of the eccentric collar. 4 to 7 show a first embodiment of the variable valve timing mechanism for an internal combustion engine according to the present invention.
6 is a perspective view of a main part, FIG. 6 is a perspective view showing a state in which an engaging protrusion such as a camshaft is fitted into a clamping groove of an eccentric collar, and FIG. 7 is a side view of the same. Figure 8~
Fig. 10 shows a second embodiment of the present invention, Fig. 8 is a side view showing a state in which the engaging protrusion is fitted into the eccentric collar holding groove, and Fig. 9 is shown along the - line in Fig. 8. 10 is a side view of the swinging member alone. 7...Hollow camshaft, 8...Cam, 9,1
5... Engaging protrusion, 13... Cam gear (cam drive member), 18... Eccentric shaft, 19... Eccentric part,
21... Eccentric collar, 22, 23... Clamping groove, 4
1, 42... Cerasi plate (swinging member), 45
...Compression coil spring (elastic member), 50...
... Swinging member, 58... Compression coil spring (elastic member).
Claims (1)
ラーが回転自在に設けられ、該偏心カラーの軸線
方向の左右両端に、カムシヤフトと該カムシヤフ
トを回転駆動するカム駆動部材とが配置され、前
記偏心カラーとカムシヤフト並びに偏心カラーと
カム駆動部材は、偏心カラーに半径方向に延びて
設けられた挾持溝にカムシヤフトおよびカム駆動
部材のそれぞれの端面に突出形成した係合突起が
嵌合されることで両者間の回転力が伝達され、前
記偏心シヤフトが回転操作されてバルブタイミン
グが変えられる内燃機関の可変バルブタイミング
機構において、 前記偏心カラーには、前記カムシヤフトまたは
カム駆動部材の係合突起に当接し、該係合突起を
弾性部材の付勢力により回転方向前方あるいは後
方に付勢して前記偏心カラーの挾持溝の係合面に
押し付ける揺動部材が付設されていることを特徴
とする内燃機関の可変バルブタイミング機構。[Scope of Claim for Utility Model Registration] An eccentric collar is rotatably provided on the outer periphery of the eccentric portion of a freely rotatable eccentric shaft, and a camshaft and a cam drive member for rotationally driving the camshaft are provided at both left and right ends of the eccentric collar in the axial direction. are arranged, and the eccentric collar and the camshaft as well as the eccentric collar and the cam drive member are arranged such that engaging protrusions formed protruding from the respective end surfaces of the camshaft and the cam drive member are fitted into clamping grooves extending in the radial direction in the eccentric collar. In a variable valve timing mechanism for an internal combustion engine in which rotational force is transmitted between the two when the eccentric shaft is rotated and the valve timing is changed, the eccentric collar is provided with an engagement member of the camshaft or a cam drive member. A rocking member is provided that abuts the mating protrusion and urges the mating protrusion forward or backward in the rotational direction by the biasing force of the elastic member to press it against the mating surface of the clamping groove of the eccentric collar. Variable valve timing mechanism for internal combustion engines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12070989U JPH0359405U (en) | 1989-10-16 | 1989-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12070989U JPH0359405U (en) | 1989-10-16 | 1989-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0359405U true JPH0359405U (en) | 1991-06-12 |
Family
ID=31668772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12070989U Pending JPH0359405U (en) | 1989-10-16 | 1989-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0359405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013032744A (en) * | 2011-08-02 | 2013-02-14 | Toyota Motor Corp | Variable valve apparatus |
-
1989
- 1989-10-16 JP JP12070989U patent/JPH0359405U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013032744A (en) * | 2011-08-02 | 2013-02-14 | Toyota Motor Corp | Variable valve apparatus |
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