초록 ▼

An improved seal/bearing arrangement employs an O-ring type seal which has segmented fingers. The seal ring has a recess which is sized to mate with a corresponding projecting lug of a bore use, for example, in brake actuator mechanisms. The seal ring can be made from synthetics such as polyamides a

An improved seal/bearing arrangement employs an O-ring type seal which has segmented fingers. The seal ring has a recess which is sized to mate with a corresponding projecting lug of a bore use, for example, in brake actuator mechanisms. The seal ring can be made from synthetics such as polyamides and polyethylenes. The fingers are so arranged that locking of the seal rings in the bore occurs with insertion of a sliding, oscillating and/or rotating shaft or the like through the rings.

대표청구항 ▼

What is claimed: 1. A seal ring, comprising a body having an approximately O-ring shape defining opening through the body; an outer peripheral surface of the body having a recess formed therein; a first axial end face of the body being segmented to define a plurality of radially extending fingers a

What is claimed: 1. A seal ring, comprising a body having an approximately O-ring shape defining opening through the body; an outer peripheral surface of the body having a recess formed therein; a first axial end face of the body being segmented to define a plurality of radially extending fingers arranged around the opening; and a second axial face of the body having radially spaced outer and inner sealing lips arranged around the opening and defining therebetween a concave shape as viewed in an axial direction of the body. 2. The seal ring according to claim 1, wherein the body is comprised of synthetic material. 3. The seal ring according to claim 2, wherein the material is selected from the group consisting of polyamides and polyethylenes. 4. The seal ring according to claim 2, wherein the material is self-lubricating. 5. The seal ring according to claim 1, wherein the fingers are configured with a curvature at an inner circumference of the body such that the fingers have a generally convex shape as viewed in an axial direction of the body. 6. The seal ring according to claim 1, wherein the fingers define a lip seal. 7. The seal ring according to claim 1, wherein the body is provided with a mechanism capable of preventing rotation of the seal ring. 8. The seal ring according to claim 1, wherein the fingers define V-shaped spaces therebetween. 9. A seal/bearing assembly, comprising a first member having a central opening provided with at least one radially projecting lug; a second member operatively arranged to at least one of slide, oscillate and rotate with respect to the first member; and at least one seal ring provided between the first and second members, wherein the at least one seal ring comprises a body having an approximately O-ring shape defining an opening through the body; an outer peripheral surface of the body having a recess formed therein; a first axial end face of the body being segmented to define a plurality of radially extending fingers arranged around the opening; and a second axial face of the body having radially spaced outer and inner the sealing lips arranged around the opening and defining therebetween a concave shape forming upper and lower sealing lips, with the recess being configured to mate with the radially projecting lug of the first member. 10. The assembly according to claim 9, wherein the body is comprised of synthetic material. 11. The assembly according to claim 10, wherein the material is selected from the group consisting of polyamides and polyethylenes. 12. The assembly according to claim 10, wherein the material is self-lubricating. 13. The assembly according to claim 9, wherein the fingers are configured with a curvature at an inner circumference of the body such that the fingers have a generally convex shape as viewed in an axial direction of the body. 14. A method of installing a seal/bearing arrangement in a brake actuator, comprising inserting seal rings in a central bore of an intermediate flange arrangeable between front and rear cylinders of the brake actuator, the seal rings being comprised of a body having an approximately O-ring shape; an outer peripheral surface of the body having a recess formed therein; a first axial end face of the body being segmented to define a plurality of radially extending fingers; a second axial face of the body having radially spaced and outer and inner sealing lips defining therebetween a concave shape forming upper and lower sealing lips, and the central bore having axially spaced radially projecting lugs sized and configured to snugly engage the recess in the seal rings upon insertion thereof at the desired location in the central bore, and inserting a shaft of a parking brake release actuator through the installed seal rings so as to lock the seal rings in place via the fingers. 15. The method according to claim 14, wherein the segmented axial end face defining the fingers of each sealing ring are opposed to each other in the installed state. 16. The method according to claim 14, further comprising placing lubricant between the seal rings prior to insertion of the shaft. 17. The method according to claim 14, further comprising constructing the body from synthetic material. 18. The method according to claim 17, further comprising selecting the material from the group consisting of polyamides and polyethylenes. 19. The method according to claim 17, further comprising selecting the material to be self-lubricating. 20. The method according to claim 19, further comprising placing lubricant between the seal rings prior to insertion of the shaft. 21. The method according to claim 14, further comprising configuring the fingers with a curvature at an inner circumference of the body such that the fingers have a generally convex shape as viewed in an axial direction of the body. 22. The method according to claim 14, further comprising preventing the seal ring body from rotating. 23. The method according to claim 14, further comprising configuring the fingers to define a V-shaped space therebetween. 24. The method according to claim 23, further comprising configuring the fingers to define a wedge-shaped cross-section as viewed in an axial direction of the seal ring body.