JPH0330502U

JPH0330502U -

Info

Publication number: JPH0330502U
Application number: JP9096289U
Authority: JP
Priority date: 1989-08-03
Filing date: 1989-08-03
Publication date: 1991-03-26

Description

[Brief explanation of drawings]

第１図は本考案に係るカムシヤフトホルダー構
造を具備するエンジンの縦断正面図、第２図はそ
の一部縦断側面図、第３図は本考案に係るカムシ
ヤフトホルダーの一実施例を図示した平面図、第
４図はその底面図、第５図は第３図の−線に
沿う縦断面図、第６図は第３図の２つの−線
に沿う縦断面図、第７図は第３図の−線に沿
う縦断面図、第８図は第３図の方向から見た側
面図、第９図は第３図の線に沿う断面図、第１
０図は第８図の−線に沿う縦断面図、第１１
図は本考案に係るカムシヤフトホルダーの他の実
施例を図示した第８図に相当する側面図、第１２
図はその第９図に相当する側面図である。１……エンジン、２……シリンダブロツク、３
……クランクケース、４……シリンダヘツド、５
……ヘツドカバー、６……シリンダ、７……ピス
トン、８……コネクテイングロツド、９……クラ
ンクシヤフト、１０……吸気通路、１１……排気
通路、１２……吸気口、１３……排気口、１４…
…吸気バルブ、１５……排気バルブ、１６……コ
ツタ、１７……リテーナ、１８……圧縮コイルス
プリング、１９……タツペトシム、２０……ロツ
カーアームシヤフト、２１……ロツカーアーム、
２２……カムシヤフトホルダー、２３，２４，２
５……ボルト、２６……カムシヤフト、２７……
カム山、２８……ギヤトレイン、３０，３１……
側枠、３２……第１縦材、３３……第２縦材、３
４……中間脚、３５……張出し部、３６，３７…
…カムシヤフト支持開口、３８，３９……上方突
出部、４０，４１，４２，４３，４４，４５……
ボルト孔、４６……潤滑油供給孔、４７……第１
連通孔、４８……第２連通孔、４９，５０……第
３連通孔、５１，５２……潤滑油溝、５３，５４
……第４連通孔、５５，５６……外側面、５７，
５８……突条、６０……カムシヤフトホルダー、
６１，６２……側枠、６３，６４……カムシヤフ
ト支持開口、６５，６６……張出し部、６７，６
８……外側面、６９，７０……突条。 Fig. 1 is a longitudinal sectional front view of an engine equipped with a camshaft holder structure according to the present invention, Fig. 2 is a partial longitudinal sectional side view thereof, and Fig. 3 is an embodiment of the camshaft holder according to the present invention. A plan view, FIG. 4 is a bottom view, FIG. 5 is a vertical sectional view taken along the - line in FIG. 3, FIG. 6 is a vertical sectional view taken along the two - lines in FIG. 3, and FIG. 3 is a vertical sectional view taken along the line -, FIG. 8 is a side view taken from the direction shown in FIG. 3, FIG. 9 is a sectional view taken along the line shown in FIG.
Figure 0 is a vertical sectional view taken along the - line in Figure 8, and Figure 11
The figures are a side view and a side view corresponding to FIG. 8 showing another embodiment of the camshaft holder according to the present invention;
The figure is a side view corresponding to FIG. 9. 1...Engine, 2...Cylinder block, 3
...Crankcase, 4...Cylinder head, 5
...Head cover, 6...Cylinder, 7...Piston, 8...Connecting rod, 9...Crankshaft, 10...Intake passage, 11...Exhaust passage, 12...Intake port, 13...Exhaust Mouth, 14...
...Intake valve, 15...Exhaust valve, 16...Kotta, 17...Retainer, 18...Compression coil spring, 19...Tatsupet shim, 20...Rotsuker arm shaft, 21...Rotsuker arm,
22...Camshaft holder, 23, 24, 2
5... Bolt, 26... Camshaft, 27...
Cam mountain, 28... Gear train, 30, 31...
Side frame, 32...first vertical member, 33...second vertical member, 3
4... Intermediate leg, 35... Overhanging portion, 36, 37...
...Camshaft support opening, 38, 39...Upper protrusion, 40, 41, 42, 43, 44, 45...
Bolt hole, 46...Lubricating oil supply hole, 47...First
Communication hole, 48... Second communication hole, 49, 50... Third communication hole, 51, 52... Lubricating oil groove, 53, 54
... Fourth communication hole, 55, 56 ... Outer surface, 57,
58... protrusion, 60... camshaft holder,
61, 62... Side frame, 63, 64... Camshaft support opening, 65, 66... Overhanging portion, 67, 6
8...Outer surface, 69, 70...Protrusions.

Claims

[Scope of utility model registration request]

In a camshaft holder that is fixed to a cylinder head of an engine and rotatably supports a camshaft in cooperation with the cylinder head, the upper end of the camshaft is attached to an outer surface perpendicular to the camshaft along a camshaft support opening. A camshaft holder structure characterized by forming an arcuate protrusion from the vicinity to the vicinity of the lower end.