US 5,943,855 A · Lubricant retaining chain

Abstract

A chain includes a plurality of link assemblies connected with each other. One of the adjacent link assemblies has a first pair of plates disposed apart in the direction perpendicular to the longitudinal direction of the chain and a pair of hollow cylindrical bushes press-fitted to the first pair of plates. The other of the adjacent link assemblies has a second pair of plates disposed apart in the direction perpendicular to the longitudinal direction of the chain so as to locate at the outside of the first pair of plates and a pin penetrated through the bush and press-fitted to the second pair of plates. A moisture absorption member which retains lubricant oil between the bush and the pin is placed between facing surfaces of the first and second plates. The moisture absorption member has a large deformation amount and a small restoration amount.

Claims10

Dependent claims

A chain, comprising:

a plurality of link assemblies connected with each other,
wherein one of said adjacent link assemblies has a first pair of plates disposed apart in a direction perpendicular to a longitudinal direction of said chain and a pair of hollow cylindrical bushes press-fitted to the first pair of plates, and
wherein the other of said adjacent link assemblies has a second pair of plates disposed apart in a direction perpendicular to the longitudinal direction of said chain so as to locate at an outside of said first pair of plates and a pin penetrated through said bush and press-fitted to said second pair of plates, and
wherein a moisture absorption member selected from the group consisting of porous felt, porous non-woven fabric and a porous sponge which retains lubricant oil between said bush and said pin is placed between facing surfaces of said first and second plates.

1 more element

Dependencies are inferred from the claim text.

Lubricant retaining chain

Life of this patent

Lubricant retaining chain

Life of this patent

Abstract

Claims10