Chain and chain link with sealing ring
AssigneeHusqvarna AB
InventorPer Carlbäck
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a chain link (8) of an abrasion cutting chain comprises: providing a metal blank with outer contours of the chain link (8) and rivet holes (14); and providing a ring (15) of a seal material by injection-molding of seal material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to at least one of the rivet holes (14). The seal material flows via the transfer channel (16) into at least one cavity portion of an injection mold assembly to form at least one rings (15) of seal material. An abrasion chain link comprises at least one rivet hole (14). A transfer channel (16) is provided next to the rivet hole (14).
Claims24
1-8. (canceled)
A chain link blank for forming an abrasion cutting chain link, comprising a first lateral side a second lateral side and at least one rivet hole formed as a through-hole with rivet hole openings on each lateral side of the chain link blank, wherein a transfer channel is provided adjacent a rivet hole opening, wherein the transfer channel is adapted to be in communication with at least one cavity in an injection mold for forming at least one ring of a seal material around at least one rivet hole opening.
An abrasion cutting chain link comprising:
- a first lateral side, a second lateral side, and a rivet hole for pivotably coupling the chain link to an adjacent chain link, said rivet hole having a rivet hole opening on each of the first and second lateral sides, and a sealing ring of a seal material enclosing the rivet hole opening, wherein the sealing ring is arranged on the abrasion cutting chain link by injection-molding, wherein
- the abrasion cutting chain link is formed in a chain link blank having a transfer channel, and wherein a seal material is arranged in the transfer channel.
(canceled)
29-39. (canceled)
41-44. (canceled)
Dependencies are inferred from the claim text.