Bed with foldable earthquake protective cover

A bed with a foldable earthquake protective cover, comprising:

• a support frame for supporting a flat sleep support surface;
• at least one moveable member pivotally attached to said support frame and capable of being pivoted between a folded position in which said member is positioned away from said flat sleep support surface and an unfolded position in which said moveable member is positioned above said flat sleep support surface;
• drive means for moving said one moveable member into said unfolded position;
• and
• a sensor capable of detecting oscillations caused by an earthquake, explosion, hurricane, or other forces which may lead to building damage, said power drive means being responsive to an output of said sensor.

A bed with a foldable earthquake protective cover, comprising:

• a support frame for supporting a flat sleep support surface;
• a pair of moveable members pivotally attached to said support frame and capable of being pivoted between a folded position in which said member is positioned away from said flat sleep support surface and an unfolded position in which said moveable member is positioned above said flat sleep support surface;
• at least one power cylinder unit installed between said moveable members, said power cylinder unit having a cylinder and a piston with a piston rod, said cylinder being pivotally hinged to one of said moveable members, said piston rod being pivotally hinged to another of said moveable members;
• a source of compressed gas;
• valve means for controlling the supply of said compressed gas from said source to said power cylinder;
• and
• control means for activating said valve means for pivoting said moveable members into said unfolded position.

A bed with a foldable earthquake protective cover, comprising:

• a support frame for supporting a flat sleep support area;
• at least two moveable members pivotally attached to said support frame and capable of being pivoted between a folded position in which said members are positioned away from said flat sleep support surface and an unfolded position in which said moveable members is positioned above said flat sleep support surface,
• said pivotable members having pivotal points and counterweights attached to them on their opposite ends with respect to said pivot points so that said counterweights permanently apply to said pivotable members forces which tend to turn said pivotable members into said unfolded position;
• the weights of said pivotable members around said pivotable points being greater than the weights of said counterweights;
• said pivotable members having handles, so that when an occupant of the bed tries to turn said pivotable members into said unfolded position, said counterweights assist in unfolding;
• and
• means for locking said pivotable members in said unfolded position.

A bed with a foldable earthquake protective cover, comprising:

• a support frame;
• a bed frame for supporting a springbox of said bed;
• at least two moveable members pivotally attached to said support frame and capable of being pivoted between a folded position in which said members are positioned away from said springbox and an unfolded position in which said moveable members are positioned above said springbox;
• a release mechanism which normally supports the weight of said bed frame, including items supported by said bed frame as well as the weight of any bed's occupant and which normally maintains said moveable members in aid folded position;
• and
• means for releasing said mechanism to cause said pivotable members to turn into said unfolded position under the effect of said weights.