JPH0393621U - - Google Patents

Description

[Brief explanation of drawings]

1 to 3 are half-cut sectional views of the main parts of a seal cover according to an embodiment of the present invention, FIG. 4 is a half-cut front view of the main parts, FIG. 5 is a half-cut side view of the main parts, and FIGS. 6 to 9 The figure is a half-cut sectional view showing a state in which a seal cover according to the prior art is attached. 1... Input shaft, 2... Output shaft, 3... Outer race, 3a, 8c... Spherical outer surface, 4... First spherical shell, 4c, 6c, 7a... Spherical inner surface, 4d...
... Spherical groove, 5 ... Spherical shell, 6 ... Spherical shell body, 7
...Sliding part, 8...Second spherical shell, 9, 10...
Seal portion, 11...groove, 11a...edge, 12...
...notch, 13,14...slit.

Claims (1)

[Claims for Utility Model Registration] 1. A joint in which an input shaft 1 and an output shaft 2 are connected so that they can move in an articulated manner, and an outer race 3 having a spherical outer surface 3a is connected to one of the shafts 2. In a seal cover that is fitted over a device, the spherical outer surface 3a of the outer race 3 is located near one end 6a on the large diameter side of the spherical shell main body 6, which has a substantially bowl shape.
A sliding part 7 having a spherical inner surface 7a that slides on the other shaft 1 is provided, and a spherical shell 5 made of a non-flexible material is provided at the other end 6b on the small diameter side with a fixed part that is fitted onto the other shaft 1. A seal cover for a joint, characterized in that the sliding portion 7 is provided with recesses 11, 12, 13, and 14 for absorbing thermal expansion of the sliding portion 7. 2. A seal that is fitted onto a joint that connects an input shaft 1 and an output shaft 2 so that they can move in an articulated manner, and is formed by connecting an outer race 3 with a spherical outer surface 3a to one of the shafts 2. In the cover, a first spherical surface made of a non-flexible material is provided with a spherical inner surface 4c that slides on the spherical outer surface 3a of the outer race 3, and a spherical groove 4d that opens at the end on the other shaft 1 side. The shell 4 and one end 8a are connected to the spherical groove 4d.
a second spherical shell 8 made of a non-flexible material, the other end 8b of which is slidably inserted into the other shaft 1; recesses 11, 12, 13, 1 that absorb thermal expansion of the spherical shell 4;
A seal cover for a joint characterized by having 4. 3. A seal that is fitted onto a joint that connects an input shaft 1 and an output shaft 2 so that they can move in an articulated manner, and is formed by connecting an outer race 3 with a spherical outer surface 3a to one of the shafts 2. In the cover, a spherical inner surface 7a that slides on the spherical outer surface 3a of the outer race 3 is provided near one end 6a of the spherical shell main body 6.
A first spherical shell 4 made of a non-flexible material is provided with a sliding portion 7 having a sliding portion 7, one end portion 8a is brought into slidable contact with the spherical inner surface 6c of the spherical shell main body 6, and the other end portion 8b is brought into contact with the spherical inner surface 6c of the spherical shell body 6. A second spherical shell 8 made of a non-flexible material is fitted onto the other shaft 1, and recesses 11, 12, 13, 14 are provided in the sliding portion 7 to absorb thermal expansion of the sliding portion 7. A seal cover for a joint, characterized by being provided with.