초록 ▼

An adjustable bed is particularly adapted for the care of patients at home, and comprises a stationary frame, and a mattress support having a head section, a center section, and a foot section, which are hingedly interconnected. A lift arm has opposing ends thereof pivotally connected with the frame

An adjustable bed is particularly adapted for the care of patients at home, and comprises a stationary frame, and a mattress support having a head section, a center section, and a foot section, which are hingedly interconnected. A lift arm has opposing ends thereof pivotally connected with the frame and the mattress support center section respectively, and includes a power device which selectively pivots the lift arm to raise and lower the mattress support thereby adjusting patient elevation. A longitudinally extending motor has opposing ends thereof pivotally connected with the frame and the mattress support center section at a point spaced from the lift arm center section pivot, whereby motor extension and retraction pivots the mattress support about the lift arm pivot, thereby bodily tilting the same for adjusting patient inclination.

대표청구항 ▼

An adjustable bed comprising: (a) a ground engaging, stationary frame; (b) a mattress support having a center portion; (c) an arm having one end thereof pivotally connected with said frame at a first pivot and the other end thereof pivotally connected with said center portion at a second pivot; (d)

An adjustable bed comprising: (a) a ground engaging, stationary frame; (b) a mattress support having a center portion; (c) an arm having one end thereof pivotally connected with said frame at a first pivot and the other end thereof pivotally connected with said center portion at a second pivot; (d) means selectively rotating said arm about said first pivot for raising and lowering said mattress support and adjusting patient height; (e) a longitudinally extending motor having one end thereof pivotally connected with said frame and the other end thereof pivotally connected with said center portion at a point spaced apart from said second pivot, whereby motor extension and retraction pivots said center section about said second pivot and tilts said mattress support for adjusting patient inclination; (f) said mattress support includes a head section, a center section, and a foot section, each being pivotally interconnected; (g) said other end of said arm and said motor each being connected with said center section; and including (h) means pivoting said head section with respect to said center section; (i) means pivoting said foot section with respect to said center section; (j) said longitudinally extending motor, said arm rotating means, said head section providing means, and said foot section pivoting means each includes an electric ball-and-screw motor; (k) control means connected with said longitudinally extending motor, said arm rotation means, and said foot section pivoting means for preventing said mattress support foot section from being pivoted thereby into engagement with the ground; (l) said longitudinally extending motor includes a first power conductor activating the same for upward tilting of said mattress support; (m) said arm rotation means includes a second power conductor activating the same for downward elevation of said mattress support; (n) said foot section pivoting means includes a third power conductor activating the same for downward pivoting of said foot section with respect to said center section; (o) said control means comprises: (1) first and second level sensing switches electrically connected in said first and second power conductors respectively, and each being mounted on said bed for rotation with raising and lowering of the bed; (2) a third level sensing switch electrically connected in said third power conductor and mounted on said foot section for movement therewith; and (3) said first, second and third level sensing switches being oriented on said bed for deactivating an associated one of said ball-and-screw motors for preventing inadvertent engagement of the foot section with the ground or the stationary frame.