JPS59152243U

JPS59152243U - power transmission device

Info

Publication number: JPS59152243U
Application number: JP4484383U
Authority: JP
Inventors: 正義高橋; 賢治小島
Original assignee: 株式会社小松製作所
Priority date: 1983-03-30
Filing date: 1983-03-30
Publication date: 1984-10-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図、第２図は従来例を示すもので、第１図は正面図
、第２図は断面図、第３図以下は本考案の実施例を示す
もので、第３図は断面図、第４図は第３図のＩＶ−ＩＶ
線に沿う断面図、第５図は第４図のＰ部の拡大図、第６
図Ａ、　Ｂは凹溝とピンとの関係の作用説明図、第７図
はカムとインナレースとの関係を示す拡大断面図である
。１はリング、１ａは溝、２は回転軸、３ａ、　　３ｂは
カム、７は可撓ベアリング、８は可撓摩擦リング、８ａ
は突条。第３図第５図　′Figures 1 and 2 show a conventional example; Figure 1 is a front view, Figure 2 is a sectional view, and Figures 3 and below show embodiments of the present invention; Figure 3 is a sectional view. , Figure 4 is IV-IV of Figure 3.
5 is an enlarged view of section P in FIG. 4;
Figures A and B are explanatory views of the relationship between the groove and the pin, and Figure 7 is an enlarged sectional view showing the relationship between the cam and the inner race. 1 is a ring, 1a is a groove, 2 is a rotating shaft, 3a, 3b are cams, 7 is a flexible bearing, 8 is a flexible friction ring, 8a
is a ridge. Figure 3 Figure 5'

Claims

[Scope of utility model registration request]

(1) Groove 1a with a trapezoidal cross section in the circumferential direction on the cylindrical inner peripheral surface
A ring 1 having a rotary shaft 2 located at the axial center of the ring 1, the outer circumference of which is formed in an elliptical shape, and divided into a plurality of pieces in the direction perpendicular to the axis, and further outward in the long axis direction of the ellipse. Cams 3a and 3b fitted to the rotating shaft 2 with a spring bias, and the cam 3a. A flexible bearing 7 is fitted to the outer periphery of the cam 3b and engaged in the rotational direction at the outer periphery of the long shaft portions of the cams 3a and 3b; a cam 3a, which is rotatably fitted to the flexible bearing 7;
A flexible friction ring provided on the outer periphery with a protrusion 8a that fits and contacts the groove 1a of the ring 1 on the outside of the long axis portion of the ring 3b, and has an average radius smaller than the average radius of the ela of the ring 1 when it is circular. 8, and is located between the rotating shaft 2 and the cams 3a, 3b to engage them in the rotational direction, and urges the cams 3a, 3b outward in the longitudinal direction with a force proportional to the transmitted torque. A power transmission device comprising a cam mechanism.

(2) The power transmission device according to claim 1, wherein a plurality of slits 9 are provided in the circumferential direction on the outer peripheral surface of the protrusion 8a of the flexible friction ring 8.