JPH03324U

JPH03324U -

Info

Publication number: JPH03324U
Application number: JP5971189U
Authority: JP
Priority date: 1989-05-25
Filing date: 1989-05-25
Publication date: 1991-01-07

Description

[Brief explanation of drawings]

第１図ないし第３図は本考案における一実施例
であり、第１図はシンクロナイザーハブの正面図
、第２図は第１図中における−線部分の断面
図、第３図は要部を拡大した正面図、第４図はキ
ー溝の隅部に形成された切欠部の応力の分布を示
す応力図、第５図は縦軸に荷重横軸に発生応力を
示しキー溝の隅部における応力状態を示す応力状
態図、第６図は車両のトランスミツシヨンの分解
斜視図、第７図ないし第１０図は従来例であり、
第７図はシンクロナイザーハブの正面図、第８図
は第７図中における−線部分の断面図、第９
図はシンクロナイザーハブの要部を拡大して示す
正面図、第１０図はキー溝の隅部における応力状
態を示す応力状態図である。１５…シンクロナイザーハブ（第１の回転体）
、１７…キー溝、１８，１９…切欠部。 Figures 1 to 3 show one embodiment of the present invention, in which Figure 1 is a front view of the synchronizer hub, Figure 2 is a cross-sectional view of the - line part in Figure 1, and Figure 3 is the main part. Fig. 4 is a stress diagram showing the distribution of stress in the notch formed at the corner of the keyway, and Fig. 5 shows the load on the vertical axis and the stress generated on the horizontal axis at the corner of the keyway. FIG. 6 is an exploded perspective view of a vehicle transmission, and FIGS. 7 to 10 are conventional examples.
Figure 7 is a front view of the synchronizer hub, Figure 8 is a sectional view of the - line part in Figure 7, and Figure 9 is a front view of the synchronizer hub.
The figure is an enlarged front view showing the main parts of the synchronizer hub, and FIG. 10 is a stress state diagram showing the stress state at the corner of the keyway. 15...Synchronizer hub (first rotating body)
, 17...Keyway, 18, 19...Notch.

Claims

[Scope of utility model registration request]

a first rotating body having a rotation center; a second rotating body located concentrically on the outer periphery of the first rotating body;
a keyway formed in the first rotating body; and a key fitted in the keyway of the first rotating body to transmit rotational force between the first rotating body and the second rotating body. What is claimed is: 1. A key structure comprising: a cutout portion having a continuous curved surface formed at a corner of the keyway;