초록 ▼

A foldable baby crib having a joint, which is located at the center of each top rail of the foldable baby crib, is disclosed. The joint consists of a cover, which pivotally connects the inner ends of the two round tubes of the top rail; a fixed member, which is received and centered within the cover

A foldable baby crib having a joint, which is located at the center of each top rail of the foldable baby crib, is disclosed. The joint consists of a cover, which pivotally connects the inner ends of the two round tubes of the top rail; a fixed member, which is received and centered within the cover by means of pins; and a movable member, which is movably hung on a fixed shaft of the fixed member. The fixed member has two spring wings with elongated through hole provided on the ears thereof for allowing the pins to pass therethrough and thereby fix the fixed member to the cover. When the two round tubes of the top rail are extended to become a straight line, the pins passing through the ears are extend into a space just below the inner ends of the two round tubes so as to support the same. The movable member has two inner inclined ribs which, when the moveable member is pushed upward, force the lower ends of the spring wings of the fixed member to shift inward and bring the pins to separate from the inner ends of the two round tubes, and, at this point, depressing the cover will cause the top rail to be folded at the joint.

대표청구항 ▼

A foldable baby crib including a joint for top rails, said foldable baby crib having a frame consisting of four vertical corner posts, a lower end of each vertical corner post is fixedly received within a first connecting member and an upper end of each vertical comer post is fixedly received within

A foldable baby crib including a joint for top rails, said foldable baby crib having a frame consisting of four vertical corner posts, a lower end of each vertical corner post is fixedly received within a first connecting member and an upper end of each vertical comer post is fixedly received within a second connecting member, four horizontal top rails, two ends of each horizontal top rail are pivotably received within the second connecting member, four horizontal arms each pivotably coupled at an inner end thereof to a central hub member and pivotably coupled at an outer end thereof to one of the first connecting members at the lower end of the vertical corner posts; said horizontal top rails each consisting of two round tubes which pivotally connect at an inner end thereof to two outer ends of said joint, and at their outer ends, which are also said two ends of said horizontal top rail, to said second connecting members; said joint each comprising a cover, a fixed member, and movable member; said cover having a first face and a second face which together give said cover a substantially n-shaped cross section, and pivotably receiving within two lateral ends thereof said inner ends of said two round tubes and fixedly receiving said fixed member inside said cover by means of pins; two horizontally extended long holes being laterally symmetrically formed on each face of said cover at predetermined positions and each having a slightly downward extended outer end which forms a recess; said fixed member having two downward extended spring wings at two lateral sides thereof, each of said spring wings being provided on an outer surface thereof ears with each ear having an elongated through hole, at a height corresponding to said long holes of said cover, and a lower end which is an inward and downward inclined plane said fixed member being centrally and fixedly positioned between said first and said second faces of said cover by means of pins; two of said pins passing through said long holes of said cover and said through holes of said ears of said fixed member, such that when said spring wings are subjected to force and shift inward toward each other, said two pins passing through the ears are allowed to translate within said long holes of said cover; said movable member having a box-like lower portion inside which two lateral ribs each having an inward and downward inclined top surface being formed, and an upper portion which includes two vertically extended loops with central elongated holes therein so that said movable member is attached to said fixed member by hanging said loops on a central fixed shaft of said fixed member said round tubes each having an insert fixed in said inner end thereof such that a predetermined length of said insert projects out of said inner end of said round tube; said projected length of said insert having an upper rounded corner: said pins which pass through said long holes of said cover and said through holes of said fixed member extending into a space just below said projected length of said inserts and locating in said recesses of said long holes of said cover when said two round tubes are fully extended to a straight line and said inclined ribs of said movable member, at the time said movable member is pushed upward, being brought to contact said two inward and downward inclined lower ends of said spring wings of said fixed member, forcing said spring wings to shift inward toward each other and thereby bringing said two pins passing through said ears of said spring wings to move out of said recesses and to translate toward an inner end of said long holes and finally separate from said projected length of said inserts, permitting said top rail to be folded at said joint.