JPH036039U - - Google Patents
Info
- Publication number
- JPH036039U JPH036039U JP6593489U JP6593489U JPH036039U JP H036039 U JPH036039 U JP H036039U JP 6593489 U JP6593489 U JP 6593489U JP 6593489 U JP6593489 U JP 6593489U JP H036039 U JPH036039 U JP H036039U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- flat portion
- pin hole
- curved
- skirt
- 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
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Description
第１図は、本考案にかかるピストンのピストン
ピン穴横断方向の立面説明図である。第２図は、
第１図に示すピストンのピストンピン穴軸線方向
の立面説明図である。第３図は、第１図に示すピ
ストンをコンロツドを介してクランクピンに連結
した組み立て体の一部断面立面説明図である。第
４図は、爆発荷重により従来のピストンに生じる
変形の形状を誇張して示したピストンの模式図で
ある。第５図は、クラウン部の裏側にリブを設け
た従来のピストンをピストンピン穴軸線方向にみ
た縦断面説明図である。第６図は、第５図に示す
ピストンをピストンピン穴横断方向にみた縦断面
説明図である。第７図は、ピストンを鋳造により
製作する場合の金型中子の取り外し方向を示す図
である。
Ｐ……ピストン、１……シリンダ、２……コン
ロツド、３……クランクピン、４……クラウン部
、５……スカート部、５ａ……曲面部、５ｂ……
平面部、１５……ピンボス、１６……ピストンピ
ン、１７……ピストンピン穴、２６……上側補強
リブ、２７……下側補強リブ。
FIG. 1 is an explanatory elevational view of the piston according to the present invention in the transverse direction of the piston pin hole. Figure 2 shows
FIG. 2 is an explanatory elevational view of the piston shown in FIG. 1 in the axial direction of the piston pin hole. FIG. 3 is a partially sectional elevational view of an assembly in which the piston shown in FIG. 1 is connected to a crank pin via a connecting rod. FIG. 4 is a schematic diagram of a piston showing an exaggerated shape of the deformation that occurs in a conventional piston due to an explosive load. FIG. 5 is an explanatory longitudinal cross-sectional view of a conventional piston in which a rib is provided on the back side of the crown portion, as viewed in the axial direction of the piston pin hole. FIG. 6 is an explanatory longitudinal cross-sectional view of the piston shown in FIG. 5, viewed in a direction across the piston pin hole. FIG. 7 is a diagram showing the direction in which the mold core is removed when the piston is manufactured by casting. P...Piston, 1...Cylinder, 2...Conrod, 3...Crank pin, 4...Crown part, 5...Skirt part, 5a...Curved surface part, 5b...
Flat part, 15... Pin boss, 16... Piston pin, 17... Piston pin hole, 26... Upper reinforcing rib, 27... Lower reinforcing rib.
Claims (1)
平面部を形成するとともに、該平面部以外のスカ
ート部の外面を曲面で形成し、上記平面部に、曲
面部からピストンピン穴近傍までほぼ水平に延び
る複数の補強リブを設けたことを特徴とするエン
ジンのピストン構造。 A flat portion is formed on the outer surface of the skirt portion around the pin boss of the piston, and the outer surface of the skirt portion other than the flat portion is formed as a curved surface, and a plurality of grooves extending approximately horizontally from the curved portion to the vicinity of the piston pin hole are formed on the flat portion. An engine piston structure characterized by the provision of reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6593489U JPH036039U (en) | 1989-06-05 | 1989-06-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6593489U JPH036039U (en) | 1989-06-05 | 1989-06-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036039U true JPH036039U (en) | 1991-01-22 |
Family
ID=31598214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6593489U Pending JPH036039U (en) | 1989-06-05 | 1989-06-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036039U (en) |
-
1989
- 1989-06-05 JP JP6593489U patent/JPH036039U/ja active Pending