JPH0314368U - - Google Patents
Info
- Publication number
- JPH0314368U JPH0314368U JP7570689U JP7570689U JPH0314368U JP H0314368 U JPH0314368 U JP H0314368U JP 7570689 U JP7570689 U JP 7570689U JP 7570689 U JP7570689 U JP 7570689U JP H0314368 U JPH0314368 U JP H0314368U
- Authority
- JP
- Japan
- Prior art keywords
- dowel pin
- pin hole
- piston ring
- piston
- ring
- 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
- 230000002265 prevention Effects 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は本考案のピストンリングの回り止め装
置を示す断面図、第２図ａ，ｂはそれぞれノツク
ピンの変形例を示す図、第３図は一般的なピスト
ンの部分断面側面図、第４図および第５図はそれ
ぞれ従来のピストンリング回り止め用のノツクピ
ン圧入部を示す断面図である。
１…ピストン、２…リング溝、３…ピストンリ
ング、４…ノツクピン穴、５，６…ノツクピン。
FIG. 1 is a sectional view showing a piston ring rotation prevention device of the present invention, FIGS. 2a and 2b are views showing modified examples of the dowel pin, respectively, FIG. FIG. 5 and FIG. 5 are sectional views showing a conventional knock pin press-fitting portion for preventing rotation of a piston ring. 1... Piston, 2... Ring groove, 3... Piston ring, 4... Knock pin hole, 5, 6... Knock pin.
Claims (1)
向つて直径方向に貫通するノツクピン穴を穿設す
るとともに、そのノツクピン穴に、ノツクピン穴
径と等しいか若干小径でかつ挿入方向への抜け出
し防止部が形成されているノツクピンを貫挿し、
そのノツクピンの先端をリング溝内に突出させて
ピストンリングに係合させ、上記ノツクピンの基
端面がピストンリングの内周面に当接するように
したことを特徴とする、ピストンリングの回り止
め装置。 A dowel pin hole is drilled in the ring groove of the piston, passing through it in the diametrical direction from one side to the other, and a part is provided in the dowel pin hole with a diameter that is equal to or slightly smaller than the dowel pin hole diameter and that prevents it from coming off in the insertion direction. Insert the dowel pin formed with
A rotation prevention device for a piston ring, characterized in that a tip of the knock pin projects into a ring groove and engages with a piston ring, and a base end surface of the knock pin abuts an inner circumferential surface of the piston ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7570689U JPH0314368U (en) | 1989-06-28 | 1989-06-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7570689U JPH0314368U (en) | 1989-06-28 | 1989-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0314368U true JPH0314368U (en) | 1991-02-13 |
Family
ID=31616517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7570689U Pending JPH0314368U (en) | 1989-06-28 | 1989-06-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314368U (en) |
-
1989
- 1989-06-28 JP JP7570689U patent/JPH0314368U/ja active Pending