Damper including resilient friction member and seat assembly using same
First Claim
1. A damper, comprising:
- a) a tubular outer member having a first open end and a second open end, said outer member including a recess having an inner surface of substantially constant diameter, said inner surface extending between the first and second member ends, and said tubular member further comprising a first attachment hole radially intersecting the recess; and
b) an inner member assembly, including;
a shaft having a second attachment hole formed therein, and a resilient friction member mounted to the shaft, the resilient friction member disposed in the recess in frictional contact with the inner surface.
1 Assignment
0 Petitions
Accused Products
Abstract
A damper (20) for damping motion between two relatively moveable members, such as pivotal motion between components in office chairs (10). The damper (20) includes a outer member (22) having an internal recess (23) with a inner surface (24) and a crosswise oriented hole (30) intersecting the recess (23), and an inner member assembly (32) moveable relative to the outer member (22) having a shaft (34) with a resilient friction member (38) mounted thereon. The resilient friction member (38) frictionally engages the inner surface (24) in an interference fit relationship thereby radially precompressing the resilient friction member (38). The resilient friction member (38) preferably has one or more protrusions (40) that may be axially or radially oriented.
-
Citations
26 Claims
-
1. A damper, comprising:
-
a) a tubular outer member having a first open end and a second open end, said outer member including a recess having an inner surface of substantially constant diameter, said inner surface extending between the first and second member ends, and said tubular member further comprising a first attachment hole radially intersecting the recess; and
b) an inner member assembly, including;
a shaft having a second attachment hole formed therein, and a resilient friction member mounted to the shaft, the resilient friction member disposed in the recess in frictional contact with the inner surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. A damper, comprising:
-
a) a tubular outer member including first and second open ends, a recess having an inner surface of substantially constant diameter, and a first attachment hole intersecting the recess at the first end thereof; and
b) an inner member assembly received in the second end, including;
a shaft having a first portion including a second attachment hole formed therein and a smaller dimension portion, and a resilient friction member fixedly mounted to the smaller dimension portion, the resilient friction member disposed in the recess in frictional contact with the inner surface.
-
-
25. A damper, comprising:
-
a) a tubular outer member including first and second open ends, a recess having an inner surface of substantially constant diameter and a first attachment hole intersecting the recess at the first end thereof; and
b) an inner member assembly received in the second end, including;
a shaft having a first portion including a second attachment hole formed therein and a smaller dimension portion, and a resilient friction member including at least one protrusion fixedly mounted to the smaller dimension portion, the resilient friction member disposed in the recess in frictional contact with the inner surface.
-
-
26. A damper, comprising:
-
a) a tubular outer member including first and second open ends, a recess having an inner surface of substantially constant diameter extending from the first end to the second end, and a first attachment hole radially intersecting the recess at the first end thereof; and
b) an inner member assembly received in the second end, including;
a shaft having a first portion of a constant diameter including a second attachment hole formed radially therethrough and a smaller dimension portion extending from the first portion, and a one-piece resilient friction member including a plurality of protrusions fixedly mounted to the smaller dimension portion, the one-piece resilient friction member disposed in the recess in frictional contact with the inner surface.
-
Specification