JPH03123123U

JPH03123123U -

Info

Publication number: JPH03123123U
Application number: JP3096490U
Authority: JP
Priority date: 1990-03-28
Filing date: 1990-03-28
Publication date: 1991-12-16

Description

[Brief explanation of drawings]

第１図は本考案の一実施例のクラツチカバー組
立体の要部構造を示す軸方向断面図をダイアフラ
ムスプリングが押圧位置に在る状態で示す図、第
２図は従来のクラツチカバー組立体の第１図と同
様な図、第３図及び第４図は、夫々、第１図及び
第２図のクラツチカバー組立体の初期状態におけ
るダイアフラムスプリングの作用を示す説明図、
第５図及び第６図は、夫々、第３図及び第４図に
おいてピボツトリングが摩耗した状態で示す図、
第７図は第１図及び第２図のクラツチカバーの一
定期間使用後における夫々のダイアフラムスプリ
ングの押圧力−変位量曲線を示すグラフ、第８図
は従来のクラツチカバースプリングの初期状態に
おけるダイアフラムスプリングの押圧力−変位量
曲線を示すグラフ、第９図は従来のクラツチカバ
ー組立体を有するクラツチの要部構造を示す軸方
向断面図、である。符号の説明、１，１′，５，５′……ピボツト
リング、１ａ，１ａ′，５ａ，５ａ′……ピボツ
トリング（摩耗後）、２……ダイアフラムスプリ
ング、３……カバー部材、４……プレツシヤプレ
ート。 FIG. 1 is an axial sectional view showing the main structure of a clutch cover assembly according to an embodiment of the present invention, with the diaphragm spring in the pressed position, and FIG. 2 is a view of a conventional clutch cover assembly. 1, FIGS. 3 and 4 are explanatory diagrams showing the action of the diaphragm spring in the initial state of the clutch cover assembly of FIGS. 1 and 2, respectively;
5 and 6 are views showing the pivot ring in a worn state in FIGS. 3 and 4, respectively;
Fig. 7 is a graph showing the pressing force-displacement curve of each diaphragm spring after the clutch covers of Figs. 1 and 2 have been used for a certain period of time, and Fig. 8 is a graph showing the diaphragm spring in the initial state of the conventional clutch cover spring. FIG. 9 is an axial cross-sectional view showing the main structure of a clutch having a conventional clutch cover assembly. Explanation of symbols, 1, 1', 5, 5'... Pivot ring, 1a, 1a', 5a, 5a'... Pivot ring (after wear), 2... Diaphragm spring, 3... Cover member, 4... Plate Tsushiya plate.

Claims

[Claims for Utility Model Registration] An annular cover member, a pivot ring supported by the cover member, and a pivot ring that is supported concentrically with respect to the pivot ring and is supported by an axial pressing force on the inside in the radial direction. A clutch cover assembly comprising: a diaphragm spring disposed so as to be reversible in the axial direction; and a pressure plate disposed so as to be pressable in the axial direction in response to the elastic force of the diaphragm spring; A clutch cover assembly characterized in that the clutch cover assembly has a contour consisting of a closed curve in which the axial inner diameter dimension is longer than the radial inner diameter dimension.