Joints and connections – Articulated members – Plural distinct articulation axes
Patent
1994-12-05
1996-12-24
Dorner, Kenneth J.
Joints and connections
Articulated members
Plural distinct articulation axes
403104, 403109, 403322, 403377, 108144, 108146, 248407, 248423, F16B 710, F16D 100, B25G 318, A47B 900
Patent
active
055868304
ABSTRACT:
A device (10) is disclosed including a shelf (80) mounted to a lift tube (76) of a lift sub-assembly (74). An adjustment cone (88) is secured to the lower end of a rod (86) having its upper end pivotably secured to a handle (82) in turn pivotably secured adjacent the upper end of the lift tube (76). The lift tube (74) is slideable in cylindrical inner surfaces (58) of top and bottom bushings (50, 68) separated by positional spacers (66) having inner surfaces spaced from the lift tube (76). Indexing spacers (26) are slideably received and stacked end-on-end inside a vertical tube (18) below the bushings (50, 68) and the positional spacers (66). The lower ends of flexible fingers (92) of the adjustment cone (88) abut with an annular shoulder portion (36) formed in each of the indexing spacers (26) when the adjustment cone (88) is in its extended position relative to the lift tube (76) to prevent vertical movement therebeyond and allowing the ends of the fingers (92) to move in a circular path on the annular shoulder portion (36). In the retracted condition of the adjustment cone (88), the fingers (92) are pulled partially inside the lift tube (74) to a size which passes through the annular shoulder portions (36) without abutment. In the preferred form, the fingers (92) have a size which prevents passage through the cylindrical inner surface (58) of the bottom bushing (50) to prevent removal of the lift sub-assembly (74) from the vertical tube (18).
REFERENCES:
patent: D178739 (1956-09-01), Slavsky et al.
patent: D238844 (1976-02-01), Szucs
patent: D328824 (1992-08-01), Bellini et al.
patent: 390406 (1888-10-01), Sittig
patent: 464319 (1891-12-01), Parsons
patent: 1758129 (1930-05-01), Shapiro
patent: 1885597 (1932-11-01), Fehl et al.
patent: 1889783 (1932-12-01), Harman
patent: 1916537 (1933-07-01), Smith
patent: 2352837 (1944-07-01), Hillenbrand
patent: 3054122 (1962-09-01), Sarkus
patent: 3285207 (1966-11-01), Vom Hagen
patent: 3469870 (1969-09-01), Barkus
patent: 3715997 (1973-02-01), Barth
patent: 3825244 (1974-07-01), Bauer
patent: 4140341 (1979-02-01), Rabe
patent: 4183689 (1980-01-01), Wirges et al.
patent: 4401036 (1983-08-01), Russo et al.
patent: 4607577 (1986-08-01), Leonardo
patent: 4650145 (1987-03-01), Natzel et al.
patent: 4672898 (1987-06-01), Davidson
patent: 4693442 (1987-09-01), Sills
patent: 4844392 (1989-07-01), Bauer et al.
patent: 4899969 (1990-02-01), Bauer et al.
patent: 4922836 (1990-05-01), Damico
patent: 4997165 (1991-03-01), Wiese
patent: 5016846 (1991-05-01), Solomon
patent: 5020752 (1991-06-01), Rizzi et al.
Dotta James C.
Herold Duane
Konkel Brian
Wanek Ronald G.
Ashley Furniture Industries, Inc.
Dorner Kenneth J.
Lev Bruce A.
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