JPH0194625U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、本考案に係る防塵カバーを用いた等
速自在継手の縦断面図、第２図は第１実施例を示
す要部拡大図、第３図第１実施例の防塵カバーの
斜視図、第４図は第２図の―線に沿つた断面
図、第５図は第２図の―線に沿つた断面図、
第６図は第２図の―線に沿つた断面図、第７
図は第２実施例を示す要部拡大図、第８図は第２
実施例の防塵カバーの斜視図、第９図は第７図の
―線に沿つた断面図、第１０図は第７図の
―線に沿つた断面図、第１１図は第７図の―
線に沿つた断面図、第１２図は従来例を示す図
。 １０…ブーツ、１３…小径部、１５…通気溝、
１６，２６…防塵カバー、１９，２０，２９，３
０…円周溝、２３，２４，３３…切欠部。 Fig. 1 is a vertical cross-sectional view of a constant velocity universal joint using the dustproof cover according to the present invention, Fig. 2 is an enlarged view of the main part showing the first embodiment, and Fig. 3 is a perspective view of the dustproof cover of the first embodiment. Figure 4 is a cross-sectional view taken along line - in Figure 2, Figure 5 is a cross-sectional view taken along line - in Figure 2,
Figure 6 is a sectional view taken along the - line in Figure 2;
The figure is an enlarged view of the main part showing the second embodiment, and Figure 8 is the second embodiment.
A perspective view of the dustproof cover of the embodiment, FIG. 9 is a cross-sectional view taken along line - in FIG. 7, FIG. 10 is a cross-sectional view taken along line - in FIG. 7, and FIG. 11 is a cross-sectional view taken along line - in FIG.
FIG. 12 is a sectional view taken along a line showing a conventional example. 10... Boot, 13... Small diameter part, 15... Ventilation groove,
16, 26...Dust cover, 19, 20, 29, 3
0... Circumferential groove, 23, 24, 33... Notch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 軸との嵌合面に外部と連通する通気溝を形成さ
れたブーツを含む等速自在継手の密封構造におい
て、略円筒形状で、内周面に形成された円周溝と
、一方の端面に形成され、当該円周溝と外部とを
連通する切欠部とを有する防塵カバーを、上記切
欠部が上記ブーツの通気溝と位相をずらすと共に
、該通気溝の開口端面と反対側になるように軸及
び上記ブーツの小径部に弾性的に外嵌したことを
特徴とする等速自在継手の密封構造。 In the sealed structure of a constant velocity universal joint that includes a boot with a ventilation groove that communicates with the outside formed on the fitting surface with the shaft, the boot is approximately cylindrical in shape, has a circumferential groove formed on the inner circumferential surface, and has a circumferential groove formed on one end surface. a dustproof cover having a notch that communicates the circumferential groove with the outside, the notch is out of phase with the ventilation groove of the boot, and is on the opposite side from the opening end surface of the ventilation groove. A sealed structure of a constant velocity universal joint, characterized in that it is elastically fitted onto the shaft and the small diameter portion of the boot.