US 2003/0111873 A1 · Foldable furniture with a positioning unit

Abstract

A foldable furniture includes pivotally connected first and second parts. The first part includes a tubular portion that is formed with a retaining hole. An annular sleeve is sleeved slidingly around the tubular portion. A limiting member is disposed within the tubular portion, and includes a spring-biased limiting tongue projecting into the retaining hole of the tubular portion. The spring-biased limiting tongue is operable to move between an extended position, where the limiting tongue projects outwardly from the retaining hole to engage the sleeve so as to restrict movement of the annular sleeve on the tubular portion, and a retracted position, where the limiting tongue retracts into the retaining hole to disengage from the sleeve and permit movement of the annular sleeve on the tubular portion.

Claims8

Dependent claims

A foldable furniture comprising:

first and second parts pivoted to each other via a pivot, said first part including an elongated tubular portion that is formed with a retaining hole;
and
a positioning unit including
an annular sleeve sleeved slidingly around said tubular portion and connected securely to said pivot in such a manner that said pivot projects radially and outwardly from said annular sleeve, and
a limiting member disposed within said tubular portion and including a spring-biased limiting tongue projecting into said retaining hole, said spring-biased limiting tongue being operable to move between an extended position, where said limiting tongue projects outwardly from said retaining hole to abut against and engage said annular sleeve so as to restrict movement of said annular sleeve on said tubular portion, and a retracted position, where said limiting tongue retracts into said retaining hole so as to disengage from said annular sleeve and permit movement of said annular sleeve on said tubular portion.

2 more elements

A positioning unit for positioning first and second parts of a foldable furniture, the first and second parts being pivoted to each other about a pivot, the first part including an elongated tubular portion that is formed with a retaining hole, said positioning unit comprising:

an annular sleeve adapted to be sleeved slidingly around the tubular portion, and connected securely to the pivot in such a manner that the pivot projects radially and outwardly from said annular sleeve;
and
a limiting member adapted to be disposed within the tubular portion and including a spring-biased limiting tongue adapted to project into the retaining hole, said spring-biased limiting tongue being operable to move between an extended position, where said limiting tongue is adapted to project outwardly from the retaining hole to abut against and engage said annular sleeve so as to restrict movement of said annular sleeve on the tubular portion, and a retracted position, where said limiting tongue is adapted to retract into the retaining hole so as to disengage from said annular sleeve and permit movement of said annular sleeve on the tubular portion.

Dependencies are inferred from the claim text.

Foldable furniture with a positioning unit

Life of this patent

Foldable furniture with a positioning unit

Life of this patent

Abstract

Claims8