JPH0243404U

JPH0243404U -

Info

Publication number: JPH0243404U
Application number: JP1988121612U
Authority: JP
Priority date: 1988-09-19
Filing date: 1988-09-19
Publication date: 1990-03-26

Description

[Brief explanation of drawings]

第１〜２図は本考案の第一実施例を示しており
、第１図は斜視図、第２図は第１図のＡ―Ａ断面
図、第３〜５図は本考案の第二実施例を示してお
り、第３図は板材の斜視図、第４図はこの板材を
用いて構成したバルブリフタの回転防止装置の断
面図、第５図は同平面図、第６〜９図は本考案の
第三実施例を示しており、第６図は板材の平面図
、第７図は第６図のＢ―Ｂ断面図、第８図はこの
板材を用いて構成したバルブリフタの回転防止装
置の部分斜視図、第９図は第８図のＣ―Ｃ断面図
、第１０図はバルブリフタを設けたエンジンの１
例を示す部分略斜視図、第１１〜１２図は従来の
バルブリフタの回転防止装置の１例を示しており
、第１１図は縦断側面図、第１２図は第１１図の
Ｄ―Ｄ断面図である。１：クランクシヤフト、２：カムシヤフト、３
：カム、４：バルブリフタ、５：吸気弁、６：排
気弁、７：平坦面、８：エンジンブロツク、９：
軸受、１０：ガイドピン、１１：ガイド筒部、１
２：ヨーク、１３：枢軸、１４：ころ、１５：転
がり軸受、１６：ローラフオロア、１７：板材、
１８：螺子、１９：取付部、２０：抑え部、２１
：支持部、２２：板材、２３：基部、２４：蓋部
、２５：ボルト、２６：取付部、２７：折り曲げ
部、２８：抑え部、２９：板材、３０：板材素子
、３１：連結部、３２：突出部、３３：通孔、３
４：抑え部、３５：螺子。 1 to 2 show the first embodiment of the present invention, FIG. 1 is a perspective view, FIG. 3 is a perspective view of the plate material, FIG. 4 is a sectional view of a valve lifter rotation prevention device constructed using this plate material, FIG. 5 is a plan view of the same, and FIGS. 6 to 9 are diagrams. The third embodiment of the present invention is shown in which Fig. 6 is a plan view of the plate material, Fig. 7 is a sectional view taken along line BB in Fig. 6, and Fig. 8 is a rotation prevention of a valve lifter constructed using this plate material. FIG. 9 is a partial perspective view of the device, FIG. 9 is a sectional view taken along line CC in FIG. 8, and FIG.
FIGS. 11 and 12 show an example of a conventional valve lifter rotation prevention device, FIG. 11 is a vertical side view, and FIG. 12 is a cross-sectional view taken along line DD in FIG. 11. It is. 1: Crankshaft, 2: Camshaft, 3
: cam, 4: valve lifter, 5: intake valve, 6: exhaust valve, 7: flat surface, 8: engine block, 9:
Bearing, 10: Guide pin, 11: Guide cylinder part, 1
2: Yoke, 13: Pivot, 14: Roller, 15: Rolling bearing, 16: Roller follower, 17: Plate material,
18: Screw, 19: Mounting part, 20: Holding part, 21
: supporting part, 22: plate material, 23: base part, 24: lid part, 25: bolt, 26: mounting part, 27: bending part, 28: holding part, 29: plate material, 30: plate material element, 31: connecting part, 32: Projection, 33: Through hole, 3
4: Holding part, 35: Screw.

Claims

[Scope of utility model registration request]

A pivot is provided at the end of the valve lifter, which opens and closes the valve as it moves in the axial direction inside a cylinder hole formed in a fixed block, approximately perpendicular to the direction of movement of the valve lifter. A device for preventing rotation in a torsional direction of a rolling bearing valve lifter rotatably supporting a cylindrical roller follower via a plurality of rolling elements, the device comprising:
an engaging surface having a shape other than a circular arc surface centered on the central axis of the valve lifter, and a part of the plate fixed to the fixed block is brought close to the engaging surface;
Anti-rotation device for rolling bearing valve lifters.