JPS5851036U

JPS5851036U - automobile engine piston

Info

Publication number: JPS5851036U
Application number: JP14622481U
Authority: JP
Inventors: 永井　規
Original assignee: 日産自動車株式会社
Priority date: 1981-10-01
Filing date: 1981-10-01
Publication date: 1983-04-06

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１〜４図は従来の自動車用エンジンのピストンを示す
もので、第１図はその正面図、第２図はその半断面側面
図、第３図は第１図の■−■矢視断面図、第４図はこの
ピストンをシリンダに組付けた状態を示すその概略半断
面図である。第５〜８図はこの考案に係る自動車用エン
ジンのピストンの一実施例を示すものであり、第５図は
その正面図、第６図はその半断面側面図、第７図は第５
図の■−■矢視断面図、第８図は第６図に示すスカート
部の一部拡大図である。第９〜１２図はこの考案の他の
実施例を示すものであり、第９図はその正面図、第１０
図はその半断面側面図、第１１図は第９図のＸＩ−Ｘ［
矢視断面図、第１２図はこのピストンをシリンダに組付
けた状態を示すそり助略半断面図である。１・・・・・・ピストン、１０・・・・・・ピストンピ
ンボス、１４・・・・・・切落部、１６・・・・・・上
端縁部、１７・・・・・・下　　′端縁部。 ■−−グーー１、　・　第５図　。第９図第１０図Figures 1 to 4 show the piston of a conventional automobile engine. Figure 1 is a front view, Figure 2 is a side view in half cross section, and Figure 3 is a cross section taken along the line ■-■ in Figure 1. FIG. 4 is a schematic half-sectional view showing the state in which this piston is assembled into a cylinder. 5 to 8 show an embodiment of a piston for an automobile engine according to this invention, in which FIG. 5 is a front view thereof, FIG. 6 is a half-sectional side view thereof, and FIG.
FIG. 8 is a partially enlarged view of the skirt portion shown in FIG. 6. Figures 9 to 12 show other embodiments of this invention, with Figure 9 being a front view and Figure 10 being a front view.
The figure is a half cross-sectional side view, and FIG. 11 is the XI-X [
A cross-sectional view taken in the direction of arrows, and FIG. 12 is a roughly half-sectional view showing the state in which this piston is assembled into a cylinder. 1...Piston, 10...Piston pin boss, 14...Cut-off portion, 16...Top edge, 17...Bottom' edge. ■--Goo 1, ・Figure 5. Figure 9 Figure 10

Claims

[Scope of utility model registration request]

In an automobile engine piston in which a cut-out portion recessed from the outer wall surface of the skirt portion is formed on both axial end sides of the piston pin boss, a large chamfer is formed on the axial upper end edge of the piston in the skirt portion below the cut-out portion. , a piston for an automobile engine, characterized in that a smaller chamfer is applied to the lower edge of each of the pistons.