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US 2004/0166947 A1Published application
Seal structure for spider
AssigneeKoyo Seiko Co., Ltd.
InventorsKouichirou Mizuno, Kei Fujii
Life of this patent
Estimating the term…
Abstract
A seal 5 free from a core bar is fitted on each of a vertical shaft 1v and a horizontal shaft 1h of a cross shaft 1. Bases 5c of adjoining seals 5 are pressed against each other in back-to-back contact.
Claims3
A sealing structure for cross shaft comprising:
- a ring-like seal for first shaft assembled on a first shaft of a cross shaft and including a lip portion in sliding contact with a rotary ring, and a base for supporting the lip portion;
- and
- a ring-like seal for second shaft assembled on a second shaft of said cross shaft and including a lip portion in sliding contact with a rotary ring, and a base supporting the lip portion, the seal for second shaft cooperating with said seal for first shaft to form an intersection, at which the bases of these seals are in contact with each other to thereby circumferentially lock the seals to each other.
Dependencies are inferred from the claim text.