JPH0239506U

JPH0239506U -

Info

Publication number: JPH0239506U
Application number: JP11763488U
Authority: JP
Priority date: 1988-09-07
Filing date: 1988-09-07
Publication date: 1990-03-16

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の縦断側面図、第２
図は本考案の他の実施例の縦断側面図である。１……機関本体、５……機関弁としての吸気弁
、９……動弁装置、１１……駆動カム、１２……
ロツカアーム、１３，１３′……支持手段、１５
，１５′……従動カム、１６……付勢手段、２２
……駆動機構、２４……支持部、３７……付勢手
段としてのばね、３９……駆動機構としてのウオ
ームギヤ。 Fig. 1 is a longitudinal cross-sectional side view of one embodiment of the present invention;
The figure is a longitudinal sectional side view of another embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Engine main body, 5... Intake valve as an engine valve, 9... Valve train, 11... Drive cam, 12...
Locker arm, 13, 13'...Support means, 15
, 15'...Followed cam, 16...Biasing means, 22
... Drive mechanism, 24 ... Support part, 37 ... Spring as biasing means, 39 ... Worm gear as drive mechanism.

Claims

[Scope of utility model registration request]

In order to swing the rocker arm that is swingably supported by the support means, a drive cam that responds to the rotation of the engine is brought into sliding contact with the rocker arm, and is able to open and close the engine body while being biased by a spring in the valve closing direction. A driven cam that is in sliding contact with the rocker arm is interlocked and connected to the head of the supported engine valve, and a biasing force is provided between the engine body and the driven cam that exerts a biasing force in the direction of sliding the driven cam into sliding contact with the rocker arm. In a valve train for an internal combustion engine in which a force means is provided, the drive cam is slidably contacted with the longitudinal middle part of the rocker arm, is movable in the axial direction and is supported by the engine body, and has one end slidably attached to one end of the rocker arm. a support shaft provided with a spherical support portion for contacting and supporting; interlocking with the support shaft to change the axial position of the support shaft;
A valve operating system for an internal combustion engine, characterized in that a supporting means including a driving mechanism connected thereto, and a driven cam are disposed at positions opposite to the driving cam with respect to the rocker arm and corresponding to both ends of the rocker arm.