Elastomeric bushing with ferrule
AssigneePullman Incorporated
InventorMichael Bixler
Life of this patent
Estimating the term…
Abstract
An elastomeric bushing comprises an inner sleeve including a first end face and an opposite second end face. An elastomeric bumper is disposed around and directly engages the inner sleeve. The elastomeric bumper includes an annular void. An outer sleeve is disposed around the inner sleeve and the elastomeric bumper, spaced apart from the inner sleeve, and directly engages the elastomeric bumper. A one-piece monolithic ferrule includes a cylindrical sidewall surrounding a portion of the inner sleeve, an end wall, and a collar. The end wall radially inwardly extends from the side wall and overlaps the first end face of the inner sleeve. The collar has an outer surface positioned within the outer sleeve and within the annular void to limit the radial extent of relative movement between the inner and outer sleeves.
Claims20
An elastomeric bushing comprising:
- an inner sleeve including a first end face and an opposite second end face;
- an elastomeric bumper disposed around and directly engaging the inner sleeve, the elastomeric bumper including a first annular void and a spaced apart second annular void;
- an outer sleeve disposed around the inner sleeve and the elastomeric bumper, the outer sleeve being spaced apart from the inner sleeve and directly engaging the elastomeric bumper, the outer sleeve including a first end and an opposite second end;
- a one-piece monolithic first ferrule including a cylindrical sidewall surrounding a portion of the inner sleeve, an end wall, and a collar, the end wall radially inwardly extending from the side wall and overlapping the first end face of the inner sleeve, the collar having an outer surface positioned within the outer sleeve, within the first annular void, and radially outward of the sidewall, the outer surface being spaced apart from the elastomeric bumper;
- and
- a one-piece monolithic second ferrule overlapping the second end face and surrounding a portion of the inner sleeve, the second ferrule including a collar positioned within the outer sleeve and within the second annular void.
An elastomeric bushing comprising:
- an inner sleeve including a first end face and an opposite second end face;
- an elastomeric bumper disposed around and directly engaging the inner sleeve, the elastomeric bumper including a circumferentially extending outer portion, a circumferentially extending inner portion and an intermediate web portion interconnecting the inner and outer portions, the intermediate portion having an axial length less than the inner and outer portions defining a first annular void and a spaced apart second annular void;
- an outer sleeve disposed around the inner sleeve and the elastomeric bumper, the outer sleeve being spaced apart from the inner sleeve and directly engaging the elastomeric bumper, the outer sleeve including a first end and an opposite second end;
- and
- a one-piece monolithic ferrule including a cylindrical sidewall surrounding a portion of the inner sleeve, an end wall, a radially extending flange and a collar, the end wall radially inwardly extending from a first end of the side wall and overlapping the first end face of the inner sleeve, the flange radially outwardly extending from a second end of the sidewall, the collar having an outer surface positioned within the outer sleeve and within the first annular void, the outer surface being spaced apart from the elastomeric bumper.
Dependencies are inferred from the claim text.