Hub tube/washer assembly

An assembly for mounting the piston rod of a gas spring, such as may be used in adjustable-length chairs, stools, tables or the like, is disclosed. The hub tube used in the assembly is flared outwardly at its lower end to form a shoulder. The washer, to which the end of the piston rod is attached, i...

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Bibliographic Details
Main Authors BATTEY; ROBERT J, ROOT; BRIAN H, HENDRICKS; JOHN L, CARTWRIGHT; CHARLES L
Format Patent
LanguageEnglish
Published 09.11.1999
Edition6
Subjects
BEDS
CABINETS
CHAIRS
COFFEE MILLS
DESKS
DOMESTIC ARTICLES OR APPLIANCES
DRAWERS
FURNITURE
GENERAL DETAILS OF FURNITURE
HUMAN NECESSITIES
OFFICE FURNITURE
SOFAS
SPICE MILLS
SUCTION CLEANERS IN GENERAL
TABLES
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Summary:An assembly for mounting the piston rod of a gas spring, such as may be used in adjustable-length chairs, stools, tables or the like, is disclosed. The hub tube used in the assembly is flared outwardly at its lower end to form a shoulder. The washer, to which the end of the piston rod is attached, is supported on the shoulder against movement into the tube. After the washer is placed against the shoulder, the end of the tube is rolled inwardly to contain the washer in the downward direction. The expanded area for support of the washer increases resistance to upward movement of the washer in response to the strong forces exerted by the gas spring. The expanded lower section of the tube also provides an area onto which the legs of the chair may be welded.
Bibliography:Application Number: US19970857951