JPH0439350U

JPH0439350U -

Info

Publication number: JPH0439350U
Application number: JP8099090U
Authority: JP
Priority date: 1990-07-30
Filing date: 1990-07-30
Publication date: 1992-04-03
Anticipated expiration: 2005-07-30
Also published as: JP2520003Y2

Description

【図面の簡単な説明】第１図は本考案のスクリユスライダとスクリユ
シヤフトとの組付状態の一部断面斜視構成図、第
２図は第１図のスクリユシヤフトの変更例を示す
斜視構成図、第３図は無段変速機の全体概略構成
図である。１……ドライブシヤフト、２……ドライブ固定
プーリー、３……Ｖベルト、４……ドライブ可動
プーリー、９……スクリユシヤフト、９ａ……雄
ネジ軸部、９ｂ……フランジ部、９ｃ……ピン孔
、９ｄ……ネジ孔、１１……スクリユスライダ、
１１ａ……ギヤ部、１１ｂ……雌ネジ筒部、１６
……モーター、１７……ドリブンシヤフト、２２
……ドリブン固定プーリー、２３……ドリブン可
動プーリー、２６……スプリング、３０……スト
ツパー部材、３０ａ……当接突起部、３１……ス
トツパーピン、３２……ストツパーボルト。[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a partially cross-sectional perspective view of the screw slider and screw shaft of the present invention in an assembled state; FIG. 2 is a perspective view of a modified example of the screw shaft of FIG. 1; FIG. 3 is an overall schematic diagram of the continuously variable transmission. 1... Drive shaft, 2... Drive fixed pulley, 3... V belt, 4... Drive movable pulley, 9... Screw shaft, 9a... Male threaded shaft portion, 9b... Flange portion, 9c... Pin hole , 9d... screw hole, 11... screw slider,
11a... Gear part, 11b... Female thread cylinder part, 16
... Motor, 17 ... Driven shaft, 22
... Driven fixed pulley, 23 ... Driven movable pulley, 26 ... Spring, 30 ... Stopper member, 30a ... Contact projection, 31 ... Stopper pin, 32 ... Stopper bolt.

Claims

[Claims for Utility Model Registration] A fixed pulley having a conical surface and fixed to the drive shaft, and a V-groove formed between the fixed pulley and the fixed pulley having a similar conical surface. a drive pulley that is movable in the axial direction of the drive shaft and is moved in a direction toward and away from the fixed pulley by a moving means; a fixed pulley that has a conical surface and is fixed to the driven shaft; It has a conical surface similar to this fixed pulley, forms a V-groove between it and the fixed pulley, is attached so as to be movable in the axial direction of the driven shaft, and is moved in a direction toward and away from the fixed pulley by a moving means. a driven pulley consisting of a movable pulley; each V of this driven pulley and the driving pulley;
Movement of the movable pulley on the drive pulley side or the driven pulley side in a V-belt type continuously variable transmission that has a V-belt wrapped around a groove and transmits the rotation of the drive shaft to the driven shaft in a stepless manner. a screw shaft fixedly provided along the outer periphery of the shaft on the opposite side to the conical surface of the movable pulley and having a male thread on the outer periphery; a screw rider which is provided on the screw shaft and is disposed facing the surface opposite to the conical surface of the movable pulley via a bearing so as to be able to move on the screw shaft; and a gear portion of the screw rider. In a continuously variable transmission constituted by meshed screw slider driving means, the screw slider is rotated by driving of the screw slider driving means, and the screw slider moves the movable pulley from the fixed pulley. A stopper means is provided to stop the movement of the screw slider at a predetermined position when the screw slider is moved on the screw shaft in the releasing direction, and the stopper means is provided to protrude from a surface of the screw slider opposite to the movable pulley. 1. A continuously variable transmission comprising: a stopper member; and a rod-shaped member protruding from the screw shaft toward the screw slider, the tip of which abuts on the stopper member.