JPS62182716U - - Google Patents
Info
- Publication number
- JPS62182716U JPS62182716U JP6985986U JP6985986U JPS62182716U JP S62182716 U JPS62182716 U JP S62182716U JP 6985986 U JP6985986 U JP 6985986U JP 6985986 U JP6985986 U JP 6985986U JP S62182716 U JPS62182716 U JP S62182716U
- Authority
- JP
- Japan
- Prior art keywords
- head
- barrel
- tip
- ring
- resin passage
- 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
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Description
第１図はこの考案の一実施例を示すスクリユウ
ヘツドの要部の切欠断面図、第２図は第１図にお
ける２―２線で切断した断面図、第３図は同じく
第１図の３―３線で切断した断面図、第４図はそ
のスクリユヘツドの縦断面図、第５図はその５―
５線で切断した断面図である。
１１……スクリユヘツド、１３……ウエアプレ
ート、１５……ヘツド先端部分、１５Ａ……円錐
面、１５Ｂ……後部大径側、１５Ｃ……後部背面
、１６……ヘツド本体部分、１９……樹脂通路穴
、２０……リング、３０……バレル、３５……樹
脂通路。
Fig. 1 is a cutaway sectional view of the main part of the screw head showing an embodiment of this invention, Fig. 2 is a sectional view taken along the line 2-2 in Fig. 1, and Fig. 3 is a sectional view of the main part of the screw head in Fig. Figure 4 is a longitudinal cross-sectional view of the screw head, and Figure 5 is a cross-sectional view taken along line 3-3.
FIG. 5 is a cross-sectional view taken along line 5. 11...Screw head, 13...Wear plate, 15...Head tip, 15A...Conical surface, 15B...Rear large diameter side, 15C...Rear back, 16...Head main body, 19...Resin passage Hole, 20...ring, 30...barrel, 35...resin passage.
Claims (1)
分とウエアプレートの間に軸方向に移動自在のリ
ングを備え、前記リングの移動によつて前記スク
リユヘツドとウエアプレートの間に形成された樹
脂通路を開閉するようにした逆流防止弁付きスク
リユヘツドにおいて、 前記ヘツド先端部分をその後部大径側がバレル
内径よりもわずかに小さい略円錐形状となすとと
もに、該ヘツド先端部分の後部背面側からその円
錐面にかけて前記リング内側の樹脂通路と接続し
かつ前記バレルの内壁方向に向けて角度を持つた
複数の樹脂通路穴を貫設したことを特徴とする逆
流防止弁付きスクリユヘツド。[Claims for Utility Model Registration] A ring that is movable in the axial direction is provided between the tip of the head of the screw installed in the barrel and the wear plate, and the movement of the ring creates a gap between the screw head and the wear plate. In a screw head equipped with a check valve that opens and closes a formed resin passage, the tip of the head has a substantially conical shape with the rear large diameter side slightly smaller than the inner diameter of the barrel, and the rear rear side of the head tip A screw head with a check valve, characterized in that a plurality of resin passage holes are formed extending from the conical surface thereof to the resin passage inside the ring and angled toward the inner wall of the barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6985986U JPH043777Y2 (en) | 1986-05-09 | 1986-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6985986U JPH043777Y2 (en) | 1986-05-09 | 1986-05-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62182716U true JPS62182716U (en) | 1987-11-19 |
| JPH043777Y2 JPH043777Y2 (en) | 1992-02-05 |
Family
ID=30910966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6985986U Expired JPH043777Y2 (en) | 1986-05-09 | 1986-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043777Y2 (en) |
-
1986
- 1986-05-09 JP JP6985986U patent/JPH043777Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043777Y2 (en) | 1992-02-05 |