Clutch outer member for multi-plate clutch

Abstract

A clutch outer member (1) for a multi-plate clutch, having an end wall (7), a large number of fins (30) axially extending from the outer periphery of the end wall (7) and circumferentially equidistantly arranged so as to form spline grooves (20B) between each other, and also having an annular connection section (31) formed on the outer periphery of the forward ends of the fins (30) and integrally connecting the fins (30) with each other. In each fin (30), there is formed an axially extending thickness-reducing groove (33) having the bottom. A reference cutout (32) for indicating the position of each spline groove (20B) is provided at that portion of an outer end surface of the annular connection section (31) which corresponds to each spline groove (20B), and spline teeth (20A) of a friction plate (3) are fitted in the spline grooves (20B) corresponding to the reference cutouts (32). As a result, the thickness-reducing grooves in the clutch outer member and the spline grooves can be identified quickly, enabling the spline teeth of the friction plate to be more quickly fitted in the spline groove.

Description

technical field [0001] The present invention relates to an improvement of a clutch housing for a multi-plate clutch. The clutch housing is composed of the following components: an end wall; a plurality of fins extending axially from the outer periphery of the end wall, and Arranged at intervals in the form of spline grooves divided between each other; and an annular connecting portion formed on the outer periphery of the front end of the fin group to connect the fins to each other as a whole. Open and axially extending bottomed groove for weight reduction. Background technique [0002] As disclosed in the following patent document 1, the clutch housing for this multi-plate clutch is known as follows: during the high-speed rotation of the clutch, the ring-shaped connecting portion can prevent the fins from moving outward in the radial direction due to centrifugal force. The deflection keeps the spline groove and the spline teeth on the outer periphery of the friction plate i...

AI Technical Summary

Problems solved by technology

[0004] However, in this clutch case, since the spline grooves and the bottomed grooves for weight reduction are alternately arranged on the front end surface thereof, and the spline grooves also have bottoms at the portion where the ring-shaped connecting portion is located, in the clutch assembly process, when When the spline teeth on the outer periphery of the friction plate are fitted into the spline grooves of the clutch case, the bottomed grooves for weight reduction may be mistaken for the spline grooves

Generally, the width of the bottomed groove for weight reduction is smaller than that of the spline groove, so assembly errors will not occur, but the wrong identification of the bottomed groove and spline groove for weight reduction will affect the assembly efficiency to some extent.

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