JPS6340555U - - Google Patents
Info
- Publication number
- JPS6340555U JPS6340555U JP13370386U JP13370386U JPS6340555U JP S6340555 U JPS6340555 U JP S6340555U JP 13370386 U JP13370386 U JP 13370386U JP 13370386 U JP13370386 U JP 13370386U JP S6340555 U JPS6340555 U JP S6340555U
- Authority
- JP
- Japan
- Prior art keywords
- lock pin
- eccentric bearing
- compression ratio
- guide groove
- connecting rod
- 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
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案の一実施例に係る可変圧縮比機
構の偏心ベアリングにおける偏心ベアリングのロ
ツク直前の状態を示した断面図、第２図は第１図
の装置における偏心ベアリングのロツク完了後の
状態を示した断面図、第３図は従来の可変圧縮比
機構の断面図、第４図は第３図の―線に沿う
断面図、である。
２０……コネクテイングロツド、２１……ピス
トンピン、２３……偏心ベアリング、２７……ロ
ツクピン、２８……ロツクピン係合孔、３０……
ロツクピン案内溝、３０ａ……ロツクピン案内溝
の溝底、３２……フラツプ、３２ａ……フラツプ
の外面、３６……付勢手段としてのコイルスプリ
ング。
Fig. 1 is a sectional view showing the eccentric bearing of a variable compression ratio mechanism according to an embodiment of the present invention, just before the eccentric bearing is locked, and Fig. 2 is a sectional view of the device shown in Fig. 1 after the eccentric bearing has been locked. FIG. 3 is a cross-sectional view of a conventional variable compression ratio mechanism, and FIG. 4 is a cross-sectional view taken along line - in FIG. 3. 20... Connecting rod, 21... Piston pin, 23... Eccentric bearing, 27... Lock pin, 28... Lock pin engagement hole, 30...
Lock pin guide groove, 30a...groove bottom of lock pin guide groove, 32...flap, 32a...outer surface of flap, 36...coil spring as biasing means.
Claims (1)
回転可能に介装され、外周面に前記コネクテイン
グロツド側に摺動自在に設けられたロツクピンを
ロツクピン係合孔に誘導するロツクピン案内溝を
設けた可変圧縮比機構の偏心ベアリングにおいて
、前記ロツクピン係合孔の近傍に、外面が前記ロ
ツクピン案内溝の溝底に接続されピストンピン側
に傾倒可能なフラツプを設け、該フラツプを付勢
手段により半径方向外方へ付勢させたことを特徴
とする可変圧縮比機構の偏心ベアリング。 A variable lock pin is rotatably interposed between the piston pin and the connecting rod, and has a lock pin guide groove provided on the outer peripheral surface to guide the lock pin slidably provided on the connecting rod side to the lock pin engagement hole. In an eccentric bearing for a compression ratio mechanism, a flap whose outer surface is connected to the bottom of the lock pin guide groove and can be tilted toward the piston pin is provided near the lock pin engagement hole, and the flap is radially outwardly moved by a biasing means. An eccentric bearing for a variable compression ratio mechanism characterized by being biased in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13370386U JPS6340555U (en) | 1986-09-02 | 1986-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13370386U JPS6340555U (en) | 1986-09-02 | 1986-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6340555U true JPS6340555U (en) | 1988-03-16 |
Family
ID=31034256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13370386U Pending JPS6340555U (en) | 1986-09-02 | 1986-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6340555U (en) |
-
1986
- 1986-09-02 JP JP13370386U patent/JPS6340555U/ja active Pending