JPH01119913U - - Google Patents
Info
- Publication number
- JPH01119913U JPH01119913U JP1613788U JP1613788U JPH01119913U JP H01119913 U JPH01119913 U JP H01119913U JP 1613788 U JP1613788 U JP 1613788U JP 1613788 U JP1613788 U JP 1613788U JP H01119913 U JPH01119913 U JP H01119913U
- Authority
- JP
- Japan
- Prior art keywords
- cast hole
- crank pin
- cast
- minor axis
- crank
- 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.)
- Granted
Links
- 238000005266 casting Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Description
第１図は本考案の一実施例を示す側面図、第２
図は第１図の―線に沿い矢印方向に視た断面
図、第３図ア，イは第１図のＡ点及びＢ点付近に
発生する応力と鋳抜穴２０及び２４の楕円形状と
の関係を示した線図である。
１０……クランクピン；１２……クランクジヤ
ーナル；１４……ウエブ；１８，２０，２２及び
２４……鋳抜穴。
Figure 1 is a side view showing one embodiment of the present invention;
The figure is a cross-sectional view taken along the line - in Figure 1 in the direction of the arrow, and Figures 3A and 3A show the stress generated near points A and B in Figure 1 and the elliptical shapes of the cast holes 20 and 24. FIG. 10... Crank pin; 12... Crank journal; 14... Web; 18, 20, 22 and 24... Casting hole.
Claims (1)
ン部に断面形状が略円形をなす鋳抜穴を設けると
共に、上記クランクピン部に隣接するウエブ部分
に上記鋳抜穴に連通する鋳抜穴を設けたものにお
いて、上記ウエブ部分の鋳抜穴の断面形状が、ク
ランクピン及びクランクジヤーナルの中心線を含
む平面に沿う方向に短径を有し、かつ長径／短径
の比が１．３以上の楕円形に形成されたことを特
徴とする鋳造クランク軸。 A cast hole having a substantially circular cross section is provided in the crank pin portion connected to the connecting rod, and a cast hole communicating with the cast hole is provided in the web portion adjacent to the crank pin portion. In the above, the cross-sectional shape of the cast hole in the web portion is an ellipse having a minor axis in a direction along a plane including the center line of the crank pin and the crank journal, and a ratio of major axis/minor axis of 1.3 or more. A cast crankshaft characterized by being formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988016137U JP2517425Y2 (en) | 1988-02-08 | 1988-02-08 | Casting crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988016137U JP2517425Y2 (en) | 1988-02-08 | 1988-02-08 | Casting crankshaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01119913U true JPH01119913U (en) | 1989-08-14 |
| JP2517425Y2 JP2517425Y2 (en) | 1996-11-20 |
Family
ID=31228804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988016137U Expired - Lifetime JP2517425Y2 (en) | 1988-02-08 | 1988-02-08 | Casting crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2517425Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828446A (en) * | 1981-08-12 | 1983-02-19 | Toshiba Mach Co Ltd | Tool replacement device of machine tool |
| JPS59188320U (en) * | 1983-06-02 | 1984-12-13 | マツダ株式会社 | Assembly type hollow crankshaft |
-
1988
- 1988-02-08 JP JP1988016137U patent/JP2517425Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5828446A (en) * | 1981-08-12 | 1983-02-19 | Toshiba Mach Co Ltd | Tool replacement device of machine tool |
| JPS59188320U (en) * | 1983-06-02 | 1984-12-13 | マツダ株式会社 | Assembly type hollow crankshaft |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2517425Y2 (en) | 1996-11-20 |