Beds – Crib – Folding
Reexamination Certificate
2002-06-11
2003-09-30
Luu, Teri Pham (Department: 3673)
Beds
Crib
Folding
C005S098100
Reexamination Certificate
active
06625826
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a foldable baby bed, and more particularly a safety device that can prevent the frame of a stretched baby bed from being folded by unexpected force when babies are still in the bed.
Referring to
FIGS. 1 and 2
, a conventional foldable baby bed has a frame that includes an upper part
1
, four upright supports
2
, a connecting rod combination
3
, and a mattress support
4
. The upper part has bending connectors
12
, and corner connectors
11
so that it can be collapsed into smaller size. The upright supports
2
are connected to respective ones of the corner connectors
11
at upper ends, and are each connected to a corner foot
21
at a lower end. The connecting rod combination
3
includes two pairs of rods; the rods of each pair cross, and are pivoted to, each other; the rods are pivoted to respective ones of the corner feet
21
at outer ends; first feet
31
are provided to the combination to support the same on the ground when the bed is used. The mattress support
4
includes two connecting rods
41
, which are pivoted to inner ends of the rods of the combination
3
at two ends; second feet
42
are provided to the rods
41
to support the same on the ground when the bed is used.
The folding operation of the frame of the foldable baby bed can be started by means of pulling a strap upwards that is connected to the mattress support
4
. However, the bed is prone to be folded by unexpected force when babies are lying in it because it is not equipped with a safety device to prevent unintentional folding.
To overcome the above disadvantage, referring to
FIGS. 3 and 4
, the foldable baby bed is provided with a safety toggle combination, which includes two connecting members
51
, a first arm
52
, a second arm
53
, a strap
56
, and an intermediate arm
54
. One of the connecting members
51
is joined to a first one of the two pairs of the rod combination
3
, and the other one to the other one of the two pairs. The arms
52
, and
53
are pivoted to respective connecting members
51
at outer ends, and pivoted to the intermediate arm
54
at inner ends. The strap
56
is connected to the intermediate arm
54
. The safety toggle combination
5
can stretch to its full length with the intermediate arm
54
slightly sinking when the baby bed is unfolded for use, thus preventing unintentional folding of the bed due to unexpected force.
However, the safety toggle combination
5
is relatively complicated in structure, and therefore costs relatively much labor to assemble, causing increase of manufacturing cost.
SUMMARY OF THE INVENTION
Therefore, it is a main object of the present invention to provide such an uncomplicated safety device for a foldable baby bed that the manufacturing cost of the bed can be reduced.
It is another object of the present invention to provide such a safety device for a foldable baby bed that folding and stretching of the baby bed can be done with increased smoothness.
The safety device has a tube that is pivoted to a base rod of the bed frame at the first end, and is movably passed through a locking member at the second so that a down facing cavity of the second end of the tube can fit onto an up facing protrusion of the locking member when the bed is stretched to the in-use position. The tube will be made to stay engaged with the protrusion by the gravity when unexpected force acts on any part of the frame other than the tube therefore the safety device can prevent unintentional folding of the bed effectively.
REFERENCES:
patent: 5381570 (1995-01-01), Cheng
patent: 5664267 (1997-09-01), Cheng
patent: 6308352 (2001-10-01), Cheng
Conley Fredrick
Luu Teri Pham
Rosenberg , Klein & Lee
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