JPH0397575U - - Google Patents
Info
- Publication number
- JPH0397575U JPH0397575U JP628590U JP628590U JPH0397575U JP H0397575 U JPH0397575 U JP H0397575U JP 628590 U JP628590 U JP 628590U JP 628590 U JP628590 U JP 628590U JP H0397575 U JPH0397575 U JP H0397575U
- Authority
- JP
- Japan
- Prior art keywords
- decompression
- pin
- centrifugal weight
- output end
- camshaft
- 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
- 230000006837 decompression Effects 0.000 claims description 16
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
Landscapes
- Valve Device For Special Equipments (AREA)
Description
図面は本考案の実施例を示し、第１図は要部の
取り出し縦断面図、第２図は頭上弁エンジンにお
けるカムギヤ周辺の縦断正面図、第３図は第２図
の−線断面図、第４図は第２図の−線断
面図、第５図は別実施例の第１図相当図である。
Ｅ……エンジン、３……カム軸、５……カムギ
ヤ、６……カム、７……タペツト、１０……ピン
案内孔、１１……デコンプピンの入力端、１２…
…デコンプピンの出力端、１３……デコンプピン
、１４……遠心錘、１５……支点ピン、１８……
デコンプ用バネ、Ｃ……求心方向、Ａ……デコン
プ位置、Ｂ……デコンプ解除位置。
The drawings show an embodiment of the present invention; FIG. 1 is a vertical sectional view taken out of the main parts, FIG. 2 is a vertical sectional front view of the vicinity of the cam gear in an overhead valve engine, and FIG. 3 is a sectional view taken along the - line in FIG. 4 is a sectional view taken along the line -- in FIG. 2, and FIG. 5 is a view corresponding to FIG. 1 of another embodiment. E... Engine, 3... Camshaft, 5... Cam gear, 6... Cam, 7... Tappet, 10... Pin guide hole, 11... Decompression pin input end, 12...
... Output end of decompression pin, 13 ... Decompression pin, 14 ... Centrifugal weight, 15 ... Fulcrum pin, 18 ...
Decompression spring, C... Centripetal direction, A... Decompression position, B... Decompression release position.
Claims (1)
遠心錘１４を支点ピン１５で遠心揺動自在に枢支
するとともに、この遠心錘１４をデコンプ用バネ
１８で求心方向Ｃに弾性付勢し、カム軸３にピン
案内孔１０を横断状に透設し、このピン案内孔１
０にデコンプピン１３を進退摺動自在に貫通し、
遠心錘１４の出力端にデコンプピン１３の入力端
１１を接当して、デコンプピン１３の出力端１２
をバネ１８の張力でカム軸３のカム６に接当する
タペツト７を突き上げるデコンプ位置Ａと、回転
に伴う遠心錘１４の遠心力がデコンプ用バネ１８
の張力に打ち勝つことによりタペツト７を突き上
げないデコンプ解除位置Ｂとに切換駆動可能に構
成し、遠心錘１４の支点ピン１５をカム軸３の軸
芯からデコンプピン１３の出力端１２側に位置さ
せて構成したエンジンの始動時自動デコンプ装置
において、 カムギヤ５を合成樹脂で構成するとともに、こ
のカムギヤ５の側面から遠心錘１４の支点ピン１
５を一体に突設し、この支点ピン１５と遠心錘１
４とをスナツプ係合させたことを特徴とするエン
ジンの始動時自動デコンプ装置。[Claims for Utility Model Registration] A centrifugal weight 14 is pivoted to a cam gear 5 that constitutes a valve train in the engine E using a fulcrum pin 15 so as to be able to freely swing centrifugally, and the centrifugal weight 14 is supported in a centripetal direction by a decompression spring 18. C is elastically biased, a pin guide hole 10 is transparently provided in the camshaft 3 in a transverse manner, and the pin guide hole 1
0 through the decompression pin 13 so as to be able to slide forward and backward,
The input end 11 of the decompression pin 13 is brought into contact with the output end of the centrifugal weight 14, and the output end 12 of the decompression pin 13 is brought into contact with the output end 12 of the decompression pin 13.
The decompression position A is where the tension of the spring 18 pushes up the tappet 7 that comes into contact with the cam 6 of the camshaft 3, and the centrifugal force of the centrifugal weight 14 due to rotation is applied to the decompression spring 18.
The fulcrum pin 15 of the centrifugal weight 14 is positioned from the axis of the camshaft 3 to the output end 12 side of the decompression pin 13. In the automatic engine start-up decompression device configured, the cam gear 5 is made of synthetic resin, and the fulcrum pin 1 of the centrifugal weight 14 is inserted from the side of the cam gear 5.
5 is integrally protruded, and this fulcrum pin 15 and centrifugal weight 1
An automatic decompression device at the time of starting an engine, characterized in that 4 is engaged with a snap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP628590U JPH0397575U (en) | 1990-01-26 | 1990-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP628590U JPH0397575U (en) | 1990-01-26 | 1990-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397575U true JPH0397575U (en) | 1991-10-08 |
Family
ID=31509959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP628590U Pending JPH0397575U (en) | 1990-01-26 | 1990-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397575U (en) |
-
1990
- 1990-01-26 JP JP628590U patent/JPH0397575U/ja active Pending
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