Abstract: A chair-type massage machine with a seat, a backrest and an armrest comprises an upper member which is disposed above and in spaced-apart relation to the armrest with a distance allowing a hand and/or arm to be inserted therebetween, to extend in the same direction as that of the armrest. A lower air bag adapted to be inflated/deflated by an air pressure is attached onto a top surface of the armrest. First and second upper air bags adapted to be inflated/deflated by an air pressure are attached onto a bottom surface of the upper member to form a line along a longitudinal direction of the upper member. The total surface area of the upper air bags and the total volume of the upper air bags in their inflated state are set to be less than the surface area of the lower air bag and the volume of the lower air bag in its inflated state, respectively.

Abstract: A relaxation apparatus which comprises a reclining chair for supporting thereon a whole body of a person who desires relaxation. The person resting on the reclining chair is cyclically vibrated at a frequency not higher than 25 Hz. A control is provided for controlling the vibrating device. The maximum absolute value of acceleration of the vibration produced by the vibrating device to vibrate the person supported on the reclining chair is not greater than 0.1 G. The control controls the acceleration in dependence on the frequency of vibrations outputted by the vibrating device such that the acceleration is small when the frequency of vibrations outputted by the vibrating device is low while the acceleration is large when the frequency of vibrations is high.

Abstract: A relaxation apparatus which comprises a reclining chair for supporting thereon a whole body of a person who desires relaxation. The person resting on the reclining chair is cyclically vibrated at a frequency not higher than 25 Hz. A control is provided for controlling the vibrating device. The maximum absolute value of acceleration of the vibration produced by the vibrating device to vibrate the person supported on the reclining chair is not greater than 0.1 G. The control controls the acceleration in dependence on the frequency of vibrations outputted by the vibrating device such that the acceleration is small when the frequency of vibrations outputted by the vibrating device is low while the acceleration is large when the frequency of vibrations is high.

Abstract: A relaxation apparatus which comprises a reclining chair for supporting thereon a whole body of a person who desires relaxation. The person resting on the reclining chair is cyclically vibrated at a frequency not higher than 25 Hz. A control is provided for controlling the vibrating device. The maximum absolute value of acceleration of the vibration produced by the vibrating device to vibrate the person supported on the reclining chair is not greater than 0.1 G. The control controls the acceleration in dependence on the frequency of vibrations outputted by the vibrating device such that the acceleration is small when the frequency of vibrations outputted by the vibrating device is low while the acceleration is large when the frequency of vibrations is high.