JPS634344U - - Google Patents
Info
- Publication number
- JPS634344U JPS634344U JP9670986U JP9670986U JPS634344U JP S634344 U JPS634344 U JP S634344U JP 9670986 U JP9670986 U JP 9670986U JP 9670986 U JP9670986 U JP 9670986U JP S634344 U JPS634344 U JP S634344U
- Authority
- JP
- Japan
- Prior art keywords
- lock pin
- connecting rod
- guide groove
- variable
- groove
- 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 3
- 238000007906 compression Methods 0.000 claims description 3
- 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近傍の断面図、第２図は第１
図の―線に沿う断面図、第３図は第１図の偏
心ベアリングの拡大縦断面図、第４図は第３図の
―線に沿う断面図、第５図は第３図の―
線に沿う断面図、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、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、３１……軽減溝。
FIG. 1 is a sectional view of the vicinity of the eccentric bearing of a variable compression ratio mechanism according to an embodiment of the present invention, and FIG.
Figure 3 is an enlarged vertical cross-sectional view of the eccentric bearing in Figure 1, Figure 4 is a cross-sectional view taken along line - in Figure 3, and Figure 5 is a cross-sectional view along line - in Figure 3.
FIG. 6 is a cross-sectional view of a conventional variable compression ratio mechanism, and FIG. 7 is a cross-sectional view taken along the line - in FIG. 6. 20...Connecting rod, 21...Piston pin, 27...Lock pin, 28...Lock pin engagement hole, 30...Lock pin guide groove, 30a
...Groove bottom of lock pin guide groove, 31...Reduction groove.
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
、前記ロツクピン案内溝の前記ロツクピンが当接
されない部位に、軽減溝を設けたことを特徴とす
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. An eccentric bearing for a variable compression ratio mechanism, characterized in that a reducing groove is provided in a portion of the lock pin guide groove where the lock pin does not abut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9670986U JPS634344U (en) | 1986-06-26 | 1986-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9670986U JPS634344U (en) | 1986-06-26 | 1986-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS634344U true JPS634344U (en) | 1988-01-12 |
Family
ID=30962752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9670986U Pending JPS634344U (en) | 1986-06-26 | 1986-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS634344U (en) |
-
1986
- 1986-06-26 JP JP9670986U patent/JPS634344U/ja active Pending