Abstract: A base seat for a bed, chair or sofa includes a fixation base, first and second rocking mounts, four arms pivotally connected between the fixation base and the first rocking mount such that a distance between top ends of each paired arms is smaller than a distance between bottom ends of the paired arms, and another four arms pivotally connected between the first and second rocking mounts such that a distance between top ends of each paired arms is smaller than a distance between bottom ends of the paired arms. First and second drive devices respectively drive the first and second rocking mounts to swing leftward and rightward relative to the fixation base and forward and backward relative to the first rocking mount along first and second arc paths with variable inclined angles, such that the base seat has a multidirectional swinging function with desired inclined angles during swinging.

Abstract: A base seat, which is adapted for being used with a bed, a chair or a sofa, includes a fixation base, a first rocking mount disposed above the fixation base and driven by a first drive device to reciprocatingly swing back and forth relative to the fixation base, a second rocking mount disposed above the first rocking mount and driven by a second drive device to reciprocatingly swing from side to side relative to the first rocking mount, and a swivel mount disposed above the second rocking mount and driven by a third drive device to rotate about an imaginary vertical axis. As such, the base seat can swing back and forth, swing from side to side, and rotate, independently or simultaneously.

Abstract: An electric bed, chair and the like includes a back frame, a waist supporting device pivotally connected with the back frame, and an actuator pivotally connected between the back frame and the waist supporting device in such a way that the waist supporting device is turnable by the actuator between a first position and a second position where the waist supporting device protrudes over a top surface of the back frame. The back frame supports a user's back and the waist supporting device can optionally support the user's waist to make the user feel comfortable when he/she lies or sits down. By controlling the actuator, the service of the waist supporting device can be optimally provided and the elevation protruding over the top surface of the back frame can be adjusted so as to adjust the supporting effect of the waist supporting device.

Abstract: A knockdown bed is formed of a first bed frame and a second bed frame. The first bed frame includes a top side, a bottom side, and an insertion member. The insertion member has an insertion end, a fixed end connected with the bottom side, two lateral sides, and two abutment surfaces connected with the two lateral sides. The two abutment surfaces gradually approach each other from the fixed end to the insertion end. The second bed frame includes a top side, a bottom side, and a slot member adjacent to the first bed frame. The slot member is formed of two sidewalls, two abutment walls connected with the two sidewalls, and a slot, into which the insertion member can be inserted to interconnect the first and second bed frames. In this way, the knockdown bed can be easily assembled and structurally firm.

Abstract: A stereophonic device for a bed disposed adjacent to at least a wave reflecting object is provided. The bed has an upper side and a lower side. The stereophonic device includes a loudspeaker disposed on the lower side of the bed. The loudspeaker is adapted to generate direct sound waves radially propagating therefrom. A part of the direct sound waves propagate through the bed toward the upper side of the bed, and another part of the direct sound waves propagate toward the wave reflecting object, reflected by the wave reflecting object and becoming a reflected sound waves. The reflected sound waves then propagate toward the upper side of the bed and demonstrate stereophonic sound along with the direct sound waves propagating theretoward.

Abstract: An electric bed is formed of a bedstead having an immovable base and a movable base pivotably connected with the immovable base, a drive mounted to the bedstead for driving the movable base to pivot relative to the immovable base, and an air bag mounted to the first or second surface and provided with a hole and a sounder mounted into the hole. The immovable base has a first surface facing the movable base. The movable base has a second surface facing the immovable base. The movable base is pivotable between a lying position and an uplift position relative to the immovable base. If a foreign object or the user's body is jammed between the immovable base and the movable base, the air bag will be squeezed to make the sounder sound for warning.

Abstract: A synchronous loudspeaking system comprises a first Bluetooth receiver, a first processor, a first speaker, a second Bluetooth receiver, a second processor and a second speaker. The first Bluetooth receiver receives a first signal. The first processor electrically connects to the first Bluetooth receiver. The first speaker has a first input terminal electrically connected to the first processor, and a first output terminal. The second Bluetooth receiver optionally receives a second signal. The second processor electrically connects to the second Bluetooth receiver. The second speaker has a second input terminal electrically connected to the second processor and optionally connected to the first output terminal, and a second output terminal. The two speakers sound synchronously when the second input terminal and the first output terminal is electrically connected.

Abstract: A knockdown bed is formed of a first bed frame and a second bed frame. The first bed frame includes a top side, a bottom side, and an insertion member. The insertion member has an insertion end, a fixed end connected with the bottom side, two lateral sides, and two abutment surfaces connected with the two lateral sides. The two abutment surfaces gradually approach each other from the fixed end to the insertion end. The second bed frame includes a top side, a bottom side, and a slot member adjacent to the first bed frame. The slot member is formed of two sidewalls, two abutment walls connected with the two sidewalls, and a slot, into which the insertion member can be inserted to interconnect the first and second bed frames. In this way, the knockdown bed can be easily assembled and structurally firm.

Abstract: A stereophonic device for a bed disposed adjacent to at least a wave reflecting object is provided. The bed has an upper side and a lower side. The stereophonic device includes a loudspeaker disposed on the lower side of the bed. The loudspeaker is adapted to generate direct sound waves radially propagating therefrom. A part of the direct sound waves propagate through the bed toward the upper side of the bed, and another part of the direct sound waves propagate toward the wave reflecting object, reflected by the wave reflecting object and becoming a reflected sound waves. The reflected sound waves then propagate toward the upper side of the bed and demonstrate stereophonic sound along with the direct sound waves propagating theretoward.

Abstract: The present invention provides an air massage device for a bed. The air massage device includes at least one air wave generator disposed on the bed. The air wave generator includes a shell, a permanent magnet disposed in the shell, a coil electromagnet movably disposed in the shell and a membrane attached to the coil electromagnet. When the coil electromagnet is powered by an alternating current, the coil electromagnet moves reciprocatingly relative to the permanent magnet along with the membrane so that the membrane generates an air wave which is adapted to massage people on the bed.

Abstract: An electric folding bed includes a base having a load-bearing element for supporting hips of a user and at least a track extending along a head-to-foot axis of the bed, a telescopic actuator having a body pivotally attached to the base and a telescoping element linearly moveable relative to the body along the head-to-foot axis substantially, a connecting unit pivotally connected with the telescoping element, a backboard fastened to the connecting unit for the user to lean thereon, at least a supporting element pivotally attached to the base and the connecting unit, and at least a moving element disposed to the track and pivotally attached to the connecting unit. The telescoping element drives the connecting unit and the backboard to swing up and displace away from the load-bearing element. Therefore, the electric folding bed can avoid user's uncomfort and injury when the user sits up.

Abstract: A voice-controlled vibration electric bed includes a bed base formed of a base support frame and movable frames, a power supply unit mounted at the bed base, a driver electrically connected to the power supply unit for driving the movable frames to move relative to the base support frame, a microcomputer-based control device electrically connected to the power supply unit and the driver, microphones installed in the bed base and electrically connected to the microcomputer, and a vibration device installed in the bed base and electrically connected to the power supply unit and also electrically connected to the control device either directly or indirectly such that the microcomputer matches the sound picked up by the microphones with a predetermined frequency range and controls the vibration device to vibrate subject to the matching result.

Abstract: An electric massage bed includes a bed frame having a plurality of support brackets, a plurality of mattress sets each having a retaining plate mounted on one of the support brackets of the bed frame and a mattress supported by the retaining plate, and a vibrating motor mounted on a bottom side of the retaining plate of one of the mattress sets. When the vibration generated from the vibrating motor is transmitted to the associated mattress of the mattress set that is equipped with the vibrating motor, the unexpected vibration won't occur in the other mattress sets because the mattress sets are spaced from each other, thereby enhancing the comfort of a user lying down on the mattresses.

Abstract: A motorized bed includes a bed body and a driving device. The bed body includes a base frame, a fixed frame, and a movable frame. The driving device includes a drive unit mounted on the fixed frame, a guide tube mounted on the drive unit, a threaded rod mounted in the guide tube, an extension tube mounted in the guide tube and having a first end provided with a push portion and a second end connected with the movable frame, and a threaded mover moved by the threaded rod and movable to abut the push portion. Thus, when a human body is disposed between the movable frame and the base frame, the human body only needs to overcome the weight of the movable frame to detach the extension tube from the mover, so that the movable frame stops moving immediately.

Abstract: An electric bed includes a bed frame, a power converter mounted with the bed frame for converting a 110V AC power to a 5V DC power, and a USB receptacle mounted to the bed frame and electrically connected with the power converter for transmitting the 5V DC power generated by the power converter. By this way, a user lying down on the electric bed can charge an electric device through the USB receptacle without leaving the electric bed, thereby enhancing the convenience of the user.