Four massaging head type massaging mechanism and massaging apparatus incorporating the same

A four massaging head type massaging mechanism comprising:

• a first rotary shaft supported in a right-and-left direction;
• a pair of right and left swing arms relatively rotatably mounted on the first rotary shaft;
• a plurality of massaging heads each secured to an upper end portion and a lower end portion of each of the swing arms;
• a bracing member engaged with each of the swing arms so as to restrain the swing arm from rotating in connection with rotation of the first rotary shaft;
• a first operating mechanism for swinging the swing arms in opposite directions in the right-and-left direction to each other so that a right and left pair of massaging heads respectively secured to the upper end portions are moved toward each other while a pair of right and left the massaging heads respectively secured to the lower end portions of the swing arms are moved away from each other in the right-and-left direction, and vice versa, by means of the rotation of the first rotary shaft;
• a second operating mechanism linked to the bracing member for reciprocatingly rotating the swing arm about an axis of the first rotary shaft through the bracing member;
• and
• a guide support portion for supporting the second operating mechanism so as to be movable following the rotation of the swing arm about the first rotary shaft.

A four massaging head type massaging mechanism comprising:

• a first rotary shaft supported in a right-and-left direction;
• a pair of right and left swing arms relatively rotatably mounted on the first rotary shaft;
• a plurality of massaging heads each secured to an upper end portion and a lower end portion of each of the swing arms;
• a first operating mechanism for swinging the swing arms in opposite directions in the right-and-left direction to each other so that a right and left pair of massaging heads respectively secured to the upper end portions are moved toward each other while a pair of right and left the massaging heads respectively secured to the lower end portions of the swing arms are moved away from each other in the right-and-left direction, and vice versa, by means of the rotation of the first rotary shaft;
• and
• a bracing member engaged with each of the swing arms so as to restrain the swing arm from rotating in connection with rotation of the first rotary shaft, the bracing member being reciprocatingly movable in connection with a rotation of the swing arm about the first rotary shaft.

A chair massaging apparatus comprising:

• a seat portion;
• a backrest portion extending upward from an end portion of the seat portion;
• and
• a four massaging head type massaging mechanism having a first rotary shaft supported in a right-and-left direction, a pair of right and left swing arms relatively rotatably mounted on the first rotary shaft, a plurality of massaging heads each secured to an upper end portion and a lower end portion of each of the swing arms, a bracing member engaged with each of the swing arms so as to restrain the swing arm from rotating in connection with rotation of the first rotary shaft, a first operating mechanism for swinging the swing arms in opposite directions in the right-and-left direction to each other so that a right and left pair of massaging heads respectively secured to the upper end portions are moved toward each other while a pair of right and left the massaging heads respectively secured to the lower end portions of the swing arms are moved away from each other in the right-and-left direction, and vice versa, by means of the rotation of the first rotary shaft, and a second operating mechanism linked to the bracing member for reciprocatingly rotating the swing arm about an axis of the first rotary shaft through the bracing member, the massaging mechanism being housed in the backrest portion with the massaging heads oriented toward a front side of the backrest portion.

A leaner massaging apparatus comprising:

• an independent one-piece casing having a longitudinal dimension substantially corresponding to a back area of a user's body, a rear surface to be leaned against a wall face W, and a front surface defining an opening;
• and
• a four massaging head type massaging mechanism having a first rotary shaft supported in a right-and-left direction, a pair of right and left swing arms relatively rotatably mounted on the first rotary shaft, a plurality of massaging heads each secured to an upper end portion and a lower end portion of each of the swing arms, a bracing member engaged with each of the swing arms so as to restrain the swing arm from rotating in connection with rotation of the first rotary shaft, a first operating mechanism for swinging the swing arms in opposite directions in the right-and-left direction to each other so that a right and left pair of massaging heads respectively secured to the upper end portions are moved toward each other while a pair of right and left the massaging heads respectively secured to the lower end portions of the swing arms are moved away from each other in the right-and-left direction, and vice versa, by means of the rotation of the first rotary shaft, and a second operating mechanism linked to the bracing member for reciprocatingly rotating the swing arm about an axis of the first rotary shaft through the bracing member, the massaging mechanism being housed in the casing with the massaging heads oriented toward the opening defined in the front surface of the casing.

A hand-carriable massaging apparatus comprising:

• a hand-carriable casing defining an opening in a front surface thereof and having a pair of grip portions provided on right and left sides thereof;
• and
• a four massaging head type massaging mechanism having a first rotary shaft supported in a right-and-left direction, a pair of right and left swing arms relatively rotatably mounted on the first rotary shaft, a plurality of massaging heads each secured to an upper end portion and a lower end portion of each of the swing arms, a bracing member engaged with each of the swing arms so as to restrain the swing arm from rotating in connection with rotation of the first rotary shaft, a first operating mechanism for swinging the swing arms in opposite directions in the right-and-left direction to each other so that a right and left pair of massaging heads respectively secured to the upper end portions are moved toward each other while a pair of right and left the massaging heads respectively secured to the lower end portions of the swing arms are moved away from each other in the right-and-left direction, and vice versa, by means of the rotation of the first rotary shaft, and a second operating mechanism linked to the bracing member for reciprocatingly rotating the swing arm about an axis of the first rotary shaft through the bracing member, the massaging mechanism being housed in the casing with the massaging heads oriented toward the opening defined in the front surface of the casing.