US 2010/0133887 A1 · Lock release latch assembly for a collapsible chair having a fold-down back

Abstract

A collapsible chair including a seat, a pair of arm rests at opposite sides of the seat, a rotatable fold-down back, and a lock release latch assembly that is manually accessible at the rear of the fold-down back. The lock release latch assembly has a rotatable latch that is connected by way of first and second locking cables to a pair of locking pins that extend from opposite sides of the fold-down back to be removably attached to respective ones of the pair of arm rests. A lifting force applied to the latch causes a corresponding pulling force to be applied to each of the pair of locking pins via the first and second locking cables, whereby the locking pins are withdrawn from the pair of arm rests. Accordingly, the fold-down back of the collapsible chair is rotatable from an upright position standing generally vertically upward relative to the seat to a generally horizontal folded position lying above the seat in face-to-face alignment therewith. With the fold-down back rotated to its folded position, the chair will have a compact, space-efficient configuration which is suitable for storage and/or transport without requiring that the chair be disassembled.

Claims13

Dependent claims

A collapsible chair including a seat, a rotatable fold-down back, a pair of arm rests located at opposite sides of the seat, and a lock release latch assembly, said lock release latch assembly comprising:

a latch having first and second latch positions;
a locking projection extending from the rotatable fold-down back to be removably attached to a corresponding one of said pair of arm rests to lock the rotatable fold-down back in an upright position standing generally vertically above the seat;
and
a locking linkage extending between said latch and said locking projection,
said latch having said first latch position at which said locking linkage is relaxed and said locking projection is attached to the one of said pair of arm rests for locking the rotatable fold-down back in said upright position, and said latch having said second latch position at which a pulling force is applied to said locking linkage for causing said locking projection to be removed from the one of said pair of arm rests for unlocking the rotatable fold-down back and thereby permitting said fold-down back to rotate towards the seat to a folded position.

2 more elements

a latch having first and second latch positions;
first and second locking pins projecting outwardly from first and opposite sides of the rotatable fold-down back to be removably attached to respective ones of said pair of arm rests in order to lock the rotatable fold-down back in an upright position standing generally vertically above the seat;
and
a first locking cable extending between said latch and said first locking pin and a second locking cable extending between said latch and said second locking pin,
said latch having said first latch position at which said first and second locking cables are relaxed and said first and second locking pins are attached to the respective ones of said pair of arm rests for locking the rotatable fold-down back in said upright position, and said latch having said second latch position at which a pulling force is applied to each of said first and second locking cables for causing said first and second locking pins to be removed from the respective ones of said pair of arm rests for unlocking the rotatable fold-down back and thereby permitting said fold-down back to rotate towards the seat to a folded position.

2 more elements

Dependencies are inferred from the claim text.

Lock release latch assembly for a collapsible chair having a fold-down back

Life of this patent

Lock release latch assembly for a collapsible chair having a fold-down back

Life of this patent

Abstract

Claims13