JPS61129953U

JPS61129953U -

Info

Publication number: JPS61129953U
Application number: JP1393185U
Authority: JP
Priority date: 1985-01-31
Filing date: 1985-01-31
Publication date: 1986-08-14

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例の断面図、第２図、
第３図は他の実施例の断面図、第４図は従来例の
説明図である。 Fig. 1 is a cross-sectional view of an embodiment of this invention; Fig. 2;
FIG. 3 is a sectional view of another embodiment, and FIG. 4 is an explanatory diagram of a conventional example.

Claims

[Scope of Claim for Utility Model Registration] (1) Consisting of a toothed pulley having teeth at equal pitches on its outer circumferential surface, and a toothed belt having grooves at equal pitches that mesh with the teeth of the toothed pulley, When the toothed belt is extended linearly, the apex angle formed by the inner wall of the groove formed in the toothed belt is larger than the apex angle formed by the outer surface of the teeth of the toothed pulley that meshes with the inner wall of the groove. A wrap-around transmission device characterized in that the width is wide and is within a range that is smaller than the tooth crest angle of the toothed pulley due to curvature of the toothed belt when wrapped around the toothed pulley. (2) The wrap-around transmission device according to claim 1, wherein the teeth of the toothed pulley and the grooves of the toothed belt have a triangular cross-sectional shape. (3) The wrap-around transmission device according to claim 1, wherein the teeth of the toothed pulley and the grooves of the toothed belt have a trapezoidal cross-sectional shape. (4) The cross-sectional shapes of the teeth of the toothed pulley and the grooves of the toothed belt are circular or elliptical, and the apex angle is the intersection of tangents on the contact surface between the teeth and the grooves of the toothed belt. A wrap-around transmission device according to claim 1 of the utility model registration claim.