JPH0338406U - - Google Patents

Description

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is a cross-sectional view of the main part, and FIGS. 3, 4, and 5 are cross-sectional views of the main part in the installed state, which also serves to explain the operation. 6 and 7 are sectional views of the main parts of the conventional example in a mounted state, and FIG. 8 is a front view of the conventional example. 1...Seal mounting member, 3...Concave groove, 5...Shaft member, 6...Large diameter part, 7...Tapered part, 9...Wide part, 10...Narrow width part, 11...Inner circumference , 12...
Return fluid notch, 13...Inner peripheral surface, 14...Return fluid axial flow path.

Claims (1)

[Scope of utility model registration request] In a ring-shaped cushion seal that is fitted into the groove of the seal mounting member so as to be able to move slightly in the axial direction, and into which a shaft member having a large diameter portion and a tapered portion is inserted, it corresponds to the inner part of the groove. A wide part corresponding to the opening of the concave groove and a narrow part corresponding to the opening of the concave groove form an L-shaped cross section, and a notch for return fluid is formed on the inner circumference of the cylinder on the inner side, and further, the wide part has an L-shaped cross section. A cushion characterized in that an axial flow path for return fluid is recessed from the outer circumferential surface at a predetermined circumferential pitch over a part of the narrow portion and the entire height of the cushion so as to communicate with the notch. sticker.