JPS61130412U - - Google Patents
Info
- Publication number
- JPS61130412U JPS61130412U JP1329285U JP1329285U JPS61130412U JP S61130412 U JPS61130412 U JP S61130412U JP 1329285 U JP1329285 U JP 1329285U JP 1329285 U JP1329285 U JP 1329285U JP S61130412 U JPS61130412 U JP S61130412U
- Authority
- JP
- Japan
- Prior art keywords
- hollow
- core
- forming
- protrusion
- product
- 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
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Description
第１図は本考案に係る消失性中子の第１実施例
を示す断面図である。第２図は本考案に係る消失
性中子の第２実施例を示す断面図である。第３図
は本考案に係る消失性中子の第３実施例を示す断
面図である。第４図ないし第６図は本考案に係る
第１実施例の消失性中子の排出方法を説明する工
程図である。第７図および第８図は従来の消失性
中子を示す断面図である。
１……消失性中子、２……中子本体、３ａ，３
ｂ……突部、４……外周壁面。
FIG. 1 is a sectional view showing a first embodiment of a fugitive core according to the present invention. FIG. 2 is a sectional view showing a second embodiment of the fugitive core according to the present invention. FIG. 3 is a sectional view showing a third embodiment of the fugitive core according to the present invention. FIGS. 4 to 6 are process diagrams illustrating a method for ejecting fugitive cores according to the first embodiment of the present invention. FIGS. 7 and 8 are cross-sectional views showing conventional fugitive cores. 1... Disappearing core, 2... Core body, 3a, 3
b...Protrusion, 4...Outer peripheral wall surface.
Claims (1)
製品の中空部に開口する貫通穴を形成する突部と
からなる消失性中子であつて、前記中空製品の中
空部を形成する中子本体の突部に接する外周壁面
を中空製品の貫通穴を形成する突部に向けて拡大
する方向に傾斜させて形成したことを特徴とする
消失性中子。 A fugitive core comprising a core body forming a hollow part of a hollow product and a protrusion forming a through hole opening into the hollow part of the hollow product, the core forming the hollow part of the hollow product. A fugitive core characterized in that an outer circumferential wall surface in contact with a protrusion of a main body is formed so as to be inclined in a direction that expands toward a protrusion forming a through hole of a hollow product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1329285U JPS61130412U (en) | 1985-01-31 | 1985-01-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1329285U JPS61130412U (en) | 1985-01-31 | 1985-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61130412U true JPS61130412U (en) | 1986-08-15 |
Family
ID=30497163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1329285U Pending JPS61130412U (en) | 1985-01-31 | 1985-01-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61130412U (en) |
-
1985
- 1985-01-31 JP JP1329285U patent/JPS61130412U/ja active Pending