JPH0488028U

JPH0488028U -

Info

Publication number: JPH0488028U
Application number: JP40366090U
Authority: JP
Priority date: 1990-12-17
Filing date: 1990-12-17
Publication date: 1992-07-30

Description

[Brief explanation of the drawing]

第１図ないし第３図は本考案の一実施例にかか
り、第１図は等速ジヨイントの全体構成を示す一
部切欠側面図、第２図は要部の拡大断面図、第３
図はその球面座としてボールシートの拡大斜視図
である。第４図および第５図は本考案の他の実施
例にかかり、いずれも第２図に対応する拡大断面
図である。また、第６図および第７図は従来例に
かかり、第６図は等速ジヨイントの全体構成を示
す一部切欠側面図、第７図はその球面座の拡大斜
視図である。１１……センターヨーク、１２……ピンヨーク
、１３……ソケツトヨーク、１４……ピンヨーク
側十字軸、１４ａ……センターヨーク軸、１４ｂ
……ピンヨーク軸、１５……ソケツトヨーク側十
字軸、１５ａ……センターヨーク軸、１５ｂ……
ソケツトヨーク軸、１９……ボール（球面体）、
２０……潤滑溝、２１……ボールシート（球面座
）、２１ａ……ボールシートの内周面、２４……
潤滑剤封入部、３０……第１潤滑剤導入路、３１
……第２潤滑剤導入路。 1 to 3 show one embodiment of the present invention, in which FIG. 1 is a partially cutaway side view showing the overall structure of a constant velocity joint, FIG. 2 is an enlarged cross-sectional view of the main parts, and FIG.
The figure is an enlarged perspective view of a ball seat as its spherical seat. FIGS. 4 and 5 are enlarged sectional views corresponding to FIG. 2 of other embodiments of the present invention. Further, FIGS. 6 and 7 show a conventional example, with FIG. 6 being a partially cutaway side view showing the overall structure of the constant velocity joint, and FIG. 7 being an enlarged perspective view of its spherical seat. 11...Center yoke, 12...Pin yoke, 13...Socket yoke, 14...Pin yoke side cross shaft, 14a...Center yoke shaft, 14b
...Pin yoke shaft, 15...Socket yoke side cross shaft, 15a...Center yoke shaft, 15b...
Socket yoke axis, 19...Ball (spherical body),
20... Lubrication groove, 21... Ball seat (spherical seat), 21a... Inner peripheral surface of ball seat, 24...
Lubricant enclosing part, 30...first lubricant introduction path, 31
...Second lubricant introduction path.

Claims

[Scope of Claim for Utility Model Registration] The center yoke shafts of the pin yoke side cross shaft and the socket yoke side cross shaft are rotatably supported by the center yoke that transmits torque.
A pin yoke rotatably supported by a pin yoke shaft perpendicular to the center yoke axis of the cross shaft on the pin yoke side and swingably connected to the center yoke, and a socket yoke shaft perpendicular to the center yoke axis of the cross shaft on the socket yoke side. a socket yoke rotatably supported by the center yoke and swingably connected to the center yoke; A spherical seat that holds a spherical body in a swingable manner and has a lubrication groove formed along the circumferential direction on the inner circumferential surface is fitted into the socket yoke, and a lubricant sealing part is formed axially rearward of this spherical seat. In the joint, a first lubricant introduction path that opens to the lubricant sealing portion is formed in at least one of the fitting portion of the spherical seat and the socket yoke that fits the spherical seat, and the first lubricant introduction path opens to the lubricant sealing portion. A constant velocity joint characterized in that a second lubricant introduction path is formed to communicate the lubricant introduction path and the lubricant groove with each other.