Air pocket-type massage device

A massage device comprising:

• a first bed portion comprising a top surface configured to directly support an upper body of a user;
• a second bed portion configured to support a lower body of a user, wherein the second bed portion is configured to slide over the top surface of the first bed portion;
• a massage module disposed on the second bed portion and comprising a flexible sheath that includes a plurality of air pockets;
• and
• a position adjuster comprising a transfer plate on which the plurality of air pockets are mounted and provided above the first and second bed portions, wherein the position adjuster is configured to change a position of the massage module,
• wherein the plurality of air pockets comprise at least:
• a first pair of air pockets and a second pair of air pockets disposed at an inner side in the transfer plate;
• and a third air pocket and fourth air pocket each disposed at a first outer side and an opposite second outer side, respectively, in the transfer plate, wherein each of the third and fourth air pockets have a larger width when compared with each of the first pair of air pockets and second pair of air pockets,
• wherein when the first and second pair of air pockets are expanded, portions of the flexible sheath that include the first and second pair of air pockets are configured to come into contact with internal lower points of the calves of the user and to apply forces to the calves upwards from the inner side, and
• wherein when the third and fourth air pockets are expanded, portions of the flexible sheath that include the third and fourth air pockets are configured to come into contact with external upper side points of the calves of the user and to apply forces to the calves downwards from the outer side.