JPS6351132U - - Google Patents
Info
- Publication number
- JPS6351132U JPS6351132U JP14409986U JP14409986U JPS6351132U JP S6351132 U JPS6351132 U JP S6351132U JP 14409986 U JP14409986 U JP 14409986U JP 14409986 U JP14409986 U JP 14409986U JP S6351132 U JPS6351132 U JP S6351132U
- Authority
- JP
- Japan
- Prior art keywords
- eccentric bearing
- lock pin
- connecting rod
- locking mechanism
- engagement hole
- 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 2
- 238000007906 compression Methods 0.000 claims description 2
- 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図は本考案の第１実施例に係る偏心ベアリ
ングのロツク機構の断面図、第２図は第１図の部
分拡大断面図、第３図は第１図の装置においてロ
ツクピンがロツクピン案内溝の隆起部に当接した
状態を示す断面図、第４図は本考案の第２実施例
に係る偏心ベアリングのロツク機構の断面図、第
５図は第４図の部分拡大断面図、第６図は従来の
可変圧縮比機構の断面図、第７図は第６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、３１，４１……隆起部、３１
ｂ，４１ａ……隆起部の斜面。
FIG. 1 is a sectional view of a locking mechanism of an eccentric bearing according to a first embodiment of the present invention, FIG. 2 is a partially enlarged sectional view of FIG. 1, and FIG. FIG. 4 is a sectional view of the locking mechanism of an eccentric bearing according to a second embodiment of the present invention, FIG. 5 is a partially enlarged sectional view of FIG. 4, and FIG. The figure is a cross-sectional view of a conventional variable compression ratio mechanism, and Figure 7 is the same as Figure 6.
FIG. 20... Connecting rod, 21... Piston pin, 23... Eccentric bearing, 27... Lock pin, 28... Lock pin engagement hole, 30...
Lock pin guide groove, 31, 41... Protrusion, 31
b, 41a...Slope of the ridge.
Claims (1)
偏心ベアリングを回転可能に介装し、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
ピンを前記偏心ベアリングの外周面に形成された
ロツクピン案内溝によりロツクピン係合孔に誘導
するようにした可変圧縮比機構における偏心ベア
リングのロツク機構において、前記偏心ベアリン
グのロツクピン案内溝の溝底を、前記ロツクピン
係合孔の直前で半径方向外方に隆起させたことを
特徴とする偏心ベアリングのロツク機構。 An eccentric bearing is rotatably interposed between the piston pin and the connecting rod, and a lock pin slidably provided on the connecting rod side is inserted into the lock pin guide groove formed on the outer peripheral surface of the eccentric bearing. In a locking mechanism for an eccentric bearing in a variable compression ratio mechanism, the eccentric bearing is guided to a lock pin engagement hole, and the groove bottom of the lock pin guide groove of the eccentric bearing is raised radially outward immediately before the lock pin engagement hole. An eccentric bearing locking mechanism characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14409986U JPS6351132U (en) | 1986-09-22 | 1986-09-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14409986U JPS6351132U (en) | 1986-09-22 | 1986-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6351132U true JPS6351132U (en) | 1988-04-06 |
Family
ID=31054397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14409986U Pending JPS6351132U (en) | 1986-09-22 | 1986-09-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6351132U (en) |
-
1986
- 1986-09-22 JP JP14409986U patent/JPS6351132U/ja active Pending