Axis joint and slide bearing means

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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Details

F16C 11/04 (2006.01) F16C 11/02 (2006.01) F16C 33/74 (2006.01)

Patent

CA 2203158

An axis joint for journalling parallel connecting pieces (22, 23) to a construction element via a bearing bushing (26) and a bearing shaft (30) having outwardly diverging recesses (33, 34) to form conical surfaces (35, 36) and a clamping portion (37, 38), the joint also having conical washers (44, 45) for cooperation with the clamping portions. According to the invention, under influence of a screw (48, 49), the clamping portions (37, 38) abut directly against the connecting pieces so that a butt connection is obtained. The bearing shaft is in the form of a sleeve with an opening (43) having a diameter equivalent to the smallest diameter of the recesses. The bearing bushing contains a slide bearing sleeve (28) with internal, resilient, sealing lips (52, 53), and a space (61, 62) is arranged so that the sealing lips (52, 53) can expand freely upon insertion of the bearing shaft (30) into the sleeve (28) and resiliently abut against the bearing shaft (30). In inoperative state the sealing lips (52, 53) have an inner diameter less than the diameter of the bearing shaft (30).

Articulation axiale permettant de monter rotatives sur un élément de structure des pièces parallèles de liaison (22, 23), par l'intermédiaire d'un coussinet de palier (26) et d'un arbre de palier (30) présentant des évidements (33, 34) qui divergent vers l'extérieur et constituent des faces coniques (35, 36) et un élément de serrage (37, 38), ladite articulation comportant également des joints d'étanchéité coniques (44, 45) aptes à coopérer avec les éléments de serrage. Les éléments de serrage (37, 38), soumis à l'action d'une vis (48, 49), viennent buter directement contre les pièces de liaison de manière à créer une liaison aboutée. L'arbre de palier se présente sous la forme d'un manchon présentant une ouverture (43) dont le diamètre est équivalent au plus petit diamètre des évidements. Le coussinet de palier contient un manchon de palier lisse (28) comportant des lèvres d'étanchéité internes souples (52, 53), et un espace (61, 62) est prévu pour que les lèvres d'étanchéité (52, 53) puissent se dilater librement lors de l'introduction de l'arbre de palier (30) dans le manchon (28), et venir buter de manière souple contre l'arbre de palier (30). En position de repos, les lèvres d'étanchéité (52, 53) présentent un diamètre interne inférieur au diamètre de l'arbre de palier (30).

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