JPH0163862U

JPH0163862U -

Info

Publication number: JPH0163862U
Application number: JP1987158775U
Authority: JP
Priority date: 1987-10-19
Filing date: 1987-10-19
Publication date: 1989-04-24

Description

[Brief explanation of the drawing]

第１図は本考案に係わる遠心推力式変速プーリ
の一実施例を示す断面図、第２図は同上実施例に
おけるボール推力の作用を表す概略図、第３図は
従来の遠心推力式変速プーリの一例を示す断面図
、第４図ａ，ｂは夫々従来のボール収設空間の形
状を示す概略図である。１……固定Ｖプーリ片、２……可動Ｖプーリ片
、２ａ，３ａ……延長部、２ｂ，３ｂ……カバー
、３……スプリング押さえ、６……外側延設部、
７……内側延設部、８……ボール、ｒ……ボール
収設空間部、ａ……傾斜面、ｂ……平面、θ……
傾斜角度。 Fig. 1 is a sectional view showing an embodiment of a centrifugal thrust type variable speed pulley according to the present invention, Fig. 2 is a schematic diagram showing the action of ball thrust in the same embodiment, and Fig. 3 is a conventional centrifugal thrust type variable speed pulley. FIGS. 4a and 4b are schematic diagrams showing the shape of a conventional ball storage space, respectively. 1... Fixed V pulley piece, 2... Movable V pulley piece, 2a, 3a... Extension part, 2b, 3b... Cover, 3... Spring retainer, 6... Outer extension part,
7...Inner extension portion, 8...Ball, r...Ball accommodation space, a...Slope, b...Plane, θ...
Tilt angle.

Claims

[Scope of utility model registration request]

a fixed V-pulley piece; a movable V-pulley piece disposed on the axial extension of the fixed V-pulley piece so as to be slidable in the axial direction opposite to the fixed V-pulley piece; and a movable V-pulley piece arranged and fixed on the axial extension. a fixed piece, and a plurality of centrifugal force imparting members are provided in a space formed in an annular shape centered on the axis by the movable V pulley piece and the fixed piece so as to be freely movable within the space. The movable V-pulley piece slides by generating pressure on the inner surface of the space-constituting wall of the movable V-pulley piece by the centrifugal force caused by the centrifugal force imparting member while the pulley is rotating, and the fixed V-pulley piece is moved. In the centrifugal thrust variable speed pulley in which the V groove width between the movable V pulley piece and the movable V pulley piece is variable, the outer end portion of the inner surface of the space forming wall of each of the movable V pulley piece and the fixed piece has a space volume. The movable V-pulley piece has an inclined surface that is inclined in a direction that gradually decreases in size as it moves away from the center, and an inner end portion that is formed as a flat surface that extends in a direction substantially perpendicular to the axis. A centrifugal thrust type variable speed pulley that is characterized by being set at an angle of 100 degrees.