JPH0482334U

JPH0482334U -

Info

Publication number: JPH0482334U
Application number: JP12547190U
Authority: JP
Priority date: 1990-11-27
Filing date: 1990-11-27
Publication date: 1992-07-17

Description

[Brief explanation of the drawing]

図面は、この考案の一実施例を示し、第１図は
、スロツトル駆動装置が組み込まれた吸気系の一
部を示す側面図、第２図は、第１図のスロツトル
駆動装置を一部省略して示した断面図、第３図は
、第１スロツトルレバーの断面図、第４図は、第
２スロツトルレバーの断面図、第５図は、第１及
び第２スロツトルレバーの作用を説明するため、
各案内面を誇張して示した模式図、第６図は、第
１及び第２スロツトルレバーを使用した場合での
スロツトル開度に対する吸気通路内の負圧特性を
示すグラフである。１……スロツトルボデイ、３……スロツトル弁
、４……弁軸、５……スロツトル駆動部材、６…
…第１スロツトルレバー、７……第２スロツトル
レバー、８……アクセル索、９，１０……ガイド
、１３，１４……案内面、１５……ピン孔、１６
……スリツト、１７……ピン。 The drawings show one embodiment of this invention, and FIG. 1 is a side view showing a part of the intake system in which the throttle drive device is incorporated, and FIG. 3 is a sectional view of the first throttle lever, FIG. 4 is a sectional view of the second throttle lever, and FIG. 5 is a sectional view of the first and second throttle levers. To explain,
FIG. 6, which is a schematic diagram showing each guide surface in an exaggerated manner, is a graph showing the negative pressure characteristics in the intake passage with respect to the throttle opening when the first and second throttle levers are used. DESCRIPTION OF SYMBOLS 1... Throttle body, 3... Throttle valve, 4... Valve shaft, 5... Throttle drive member, 6...
...First throttle lever, 7...Second throttle lever, 8...Accelerator cable, 9, 10...Guide, 13, 14...Guide surface, 15...Pin hole, 16
...Slit, 17...Pin.

Claims

[Claims for Utility Model Registration] A throttle drive member that is attached to the valve stem of the throttle valve protruding outside the intake passage and rotates integrally with the valve stem; one end is connected to the throttle drive member, and the other end is connected to the throttle valve stem. a connecting part that connects one end of the accelerator cable to the throttle drive member; and an arcuate guide surface that wraps around and guides a part of the accelerator cable extending from the connecting part. In a throttle drive device for an internal combustion engine, the throttle valve is driven via the throttle drive member by pulling the accelerator cable along the guide surface of the throttle drive member when the accelerator is operated. , the throttle drive member has a plurality of guide surfaces spaced apart in the axial direction of the valve shaft, on which the accelerator cable can be selectively routed, and the radius of curvature of these guide surfaces around the valve shaft is A throttle drive device for an internal combustion engine, characterized in that the change characteristic of the radius of curvature seen in the longitudinal direction of the guide surface is different for each guide surface.