Patent ID: 6581223
Filing Date: 2003-06-24
Classification: A47C

Abstract:
A foldable frame assembly comprising:a plurality of parallel frame members which are aligned in a longitudinal direction and each of which has left and right columns that extend in a vertical direction, each of said left and right columns having opposite upper and lower column ends that are telescopically movable toward and away from each other; and a plurality of coupling units which are alternately disposed with said frame members in the longitudinal direction and each of which includes: first left and right connecting rods, each of which has a first upper rod end that is pivoted to said upper column end of a respective one of said left and right columns of one of two adjacent ones of said frame members, and a first lower rod end that is opposite to said first upper rod end, and second left and right connecting rods, each of which has a second upper rod end that is pivoted to said upper column end of a respective one of said left and right columns of the other one of said two adjacent ones of said frame members, and a second lower rod end that is opposite to said second upper rod end and that is pivoted to said first lower rod end so as to permit folding and unfolding of said frame members relative to one another in the longitudinal direction.