Leg assembly

• US 5,174,532 A
• Filed: 09/06/1991
• Issued: 12/29/1992
• Est. Priority Date: 09/06/1991
• Status: Expired due to Fees

• Current Assignee: Chin-Fa Huang
• Original Assignee: Chin-Fa Huang
• Inventors: Huang, Chin-Fa
• Primary Examiner(s): Friedman, Carl D.
• Assistant Examiner(s): CHAN, KO HUNG
• Application Number:
  US07/755,858
• Time in Patent Office: 480 Days
• Field of Search: 248/188, 248/188.1, 248/151, 248/150, 248/152, 248/155.4, 248/159, 248/163.1, 248/165, 248/460, 248/463, 248/964, 248/432, 248/502, 108/153, 108/157, 211/105.1
• US Class Current: 248/188.1
• CPC Class Codes: A47B 13/06 of metal A47B13/023 takes precedence
• CPC Class Codes: A47B 17/003 made of metal
• CPC Class Codes: A47B 21/06 characterised by means for holding, fastening or concealing cables
• CPC Class Codes: A47B 2200/0013 Desks with central bearing beams
• CPC Class Codes: A47B 2200/0026 Desks with C-shaped leg
• CPC Class Codes: A47B 2200/0028 Attachment of desk lateral uprights

Abstract

A leg assembly for furniture includes horizontal and upright supports each of which has a tubular member, connectors, bases, and screw fasteners. The tubular member includes a first and an opposite second end, and a tubular wall. The tubular wall includes a first panel, an opposite second panel, a pair of opposite third panels interconnecting the first and the second panels, a pair of first longitudinal corner grooves extending between the first and second ends adjacent to the first panel, and a pair of second longitudinal corner grooves extending between the first and second ends adjacent to the second panel. The connector includes a flat panel which abuts the first end of the upright support, a pair of opposite hooking plates extending upwards from the flat panel and being curved inwardly to engage in the second corner grooves of the horizontal support. The base is connected to the second end of the upright support to uphold the upright support. The screw fastener fastens the base, the upright support, and the connector.

Claims

1. A leg assembly for furniture comprising at least one horizontal support, at least one upright support having a top and a bottom end, at least one connector connecting said top end of said upright support to said horizontal support, and at least one base connected to said bottom end of said upright support to uphold said upright suuport, characterized by:

each of said horizontal and upright supports including a tubular member having a first end, an opposite second end, and a tubular wall extending between said first and second ends, said tubular wall including a first panel, an opposite second panel, a pair of opposite third panels respectively interconnecting said first and second panels, a pair of first longitudinal corner grooves extending between said first and second ends adjacent to said first panel, and a pair of second longitudinal corner grooves extending between said first and second ends adjacent to said second panel, said tubular member having an interior longitudinal hollow shaft and a plurality of reinforcing webs respectively and radially connected between said hollow shaft and said tubular wall;

said first end of said upright support defining said top end of said upright support, said second end of said upright support defining said bottom end of said upright support;

said connector including a panel which abuts said first end of said upright support and which has a hole aligned with said hollow shaft of said upright support, said connector having a pair of opposite hooking plates respectively extending upwards from said panel and being curved inwardly to engage in said second corner grooves of said horizontal support; and

said leg assembly further comprising at least one screw fastener to fasten said base, said upright support and said connector, said fastener including a screw bolt extending from said base and passing through said hollow shaft of said upright support and said hole of said panel of said connector and out of said panel of said connector.

2. A leg assembly as claimed in claim 1 characterized in that said second panel of said tubular member of each of said horizontal and upright supports has a longitudinal opening extending from said first end to said second end to access the interior of said tubular member, and a longitudinal detachable cover plate made of an insulating material to close said opening, said detachable cover plate having a partition plate extending inwards therefrom.

3. A leg assembly as claimed in claim 2, characterized in that said second panel of said tubular member of each of said horizontal and upright supports has two longitudinally spaced peripheral edges adjacent to said opening, each of said peripheral edges having an inward and longitudinal rail formed therealong, said detachable cover plate having a pair of oppositely longitudinal projecting portions each of which has a longitudinal rail groove formed therealong, said rail grooves engaging said rails when said detachable cover plate closes said opening.

4. A leg assembly as claimed in claim 1, said base has a bottom plate and a pair of opposed blocks formed thereon, said opposed blocks having two end faces facing each other, each of said end faces having a pair of protrusions which respectively engage one of said first corner grooves and one of said second corner grooves of said upright support.

5. A leg assembly as claimed in claim 1, characterized in that said horizontal support further incudes an end cover plate which is detachably attached to and covers one of said first and second ends of said tubular member of said horizontal support.

6. A leg assembly as claimed in claim 1 which includes two horizontal supports forming an angle therebetween, characterized in that said leg assembly further comprises a substantially L-shaped corner connector to interconnect said two horizontal supports, said corner connector having two connecting plates forming an angle therebetween each of which is connected to one of said first and second ends of said two horizontal supports.

7. A leg assembly as claimed in claim 6, characterized in that said tubular member of each of said horizontal and upright supports has a pair of oppositely longitudinal interior C-shaped grooves respectively formed along said opposite third panels, each of said two connecting plates of said L-shaped corner connector having a pair of opposed engaging holes aligned with said interior C-shaped grooves of one of said two horizontal supports when said connecting plates of said corner connector engage said two horizontal supports.