JPS6297236U - - Google Patents
Info
- Publication number
- JPS6297236U JPS6297236U JP18907185U JP18907185U JPS6297236U JP S6297236 U JPS6297236 U JP S6297236U JP 18907185 U JP18907185 U JP 18907185U JP 18907185 U JP18907185 U JP 18907185U JP S6297236 U JPS6297236 U JP S6297236U
- Authority
- JP
- Japan
- Prior art keywords
- eccentric bearing
- lock pin
- hole
- compression ratio
- rotation
- 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 5
- 238000007906 compression Methods 0.000 claims description 5
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偏心ベアリン
グ型可変圧縮比機構のロツクピンがロツクピン穴
に挿入された状態の断面図、第２図は第１図のロ
ツクピンの部分拡大図、第３図は従来の可変圧縮
比機構の断面図、第４図は第３図の偏心ベアリン
グ近傍における第３図と直角方向の断面図、第５
図は従来のロツクピンがロツクピン穴に挿入され
た状態の断面図、第６図は第５図とは別のロツク
ピンがロツクピン穴に挿入された状態の断面図、
である。
１……コネクテイングロツド、２０……ロツク
ピン穴、２１……ロツクピン、２３……座面、２
４……座面と接する側の端部。
Fig. 1 is a sectional view of a lock pin of an eccentric bearing type variable compression ratio mechanism according to an embodiment of the present invention inserted into a lock pin hole, Fig. 2 is a partially enlarged view of the lock pin of Fig. 1, and Fig. 3 4 is a sectional view of a conventional variable compression ratio mechanism, FIG. 4 is a sectional view taken in a direction perpendicular to FIG. 3 near the eccentric bearing in FIG.
The figure is a cross-sectional view of a conventional lock pin inserted into a lock pin hole, and FIG. 6 is a cross-sectional view of a lock pin different from that shown in FIG. 5 inserted into a lock pin hole.
It is. 1...Connecting rod, 20...Lock pin hole, 21...Lock pin, 23...Seat surface, 2
4...The end of the side that comes into contact with the seat surface.
Claims (1)
内外周が偏心した筒体からなる偏心ベアリングを
介在させて偏心ベアリングの回転により圧縮比を
可変とさせ、偏心ベアリングにロツク穴を設ける
とともにコネクテイングロツドにロツクピン穴を
設け、ロツクピン穴に出没自在に挿入したロツク
ピンをロツク穴に係合または係合離脱させること
により偏心ベアリングの回転を拘束または自由に
させる偏心ベアリング型可変圧縮比機構において
、前記ロツクピンのロツクピン穴の座面と接する
側の端部形状を球面状に形成したことを特徴とす
る偏心ベアリング型可変圧縮比機構のロツクピン
。 An eccentric bearing consisting of a cylindrical body with eccentric inner and outer circumferences is interposed between the connecting rod and the piston pin, and the compression ratio can be varied by rotation of the eccentric bearing.A lock hole is provided in the eccentric bearing, and the connecting rod is In an eccentric bearing type variable compression ratio mechanism in which rotation of an eccentric bearing is restrained or freed by providing a lock pin hole and engaging or disengaging a lock pin which is inserted into the lock pin hole so as to be freely retractable into the lock pin hole, the rotation of the eccentric bearing is restrained or freed. A lock pin for an eccentric bearing type variable compression ratio mechanism characterized by having a spherical end shape on the side of the hole that contacts the seat surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18907185U JPS6297236U (en) | 1985-12-10 | 1985-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18907185U JPS6297236U (en) | 1985-12-10 | 1985-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6297236U true JPS6297236U (en) | 1987-06-20 |
Family
ID=31141029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18907185U Pending JPS6297236U (en) | 1985-12-10 | 1985-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6297236U (en) |
-
1985
- 1985-12-10 JP JP18907185U patent/JPS6297236U/ja active Pending