Back kneading device mounted in chair-type massage apparatus and chair-type massage apparatus equipped with the back kneading device
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United States of America Patent
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Apr 1, 2014
Grant Date -
Nov 10, 2011
app pub date -
Apr 15, 2010
filing date -
Nov 24, 2009
priority date (Note) -
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Abstract
A back kneading device capable of causing a massage mechanism to protrude forward and return to an original normal position is provided with no increase in size and complexity in construction. The back kneading device mounted in a chair massage apparatus includes the massage mechanism having a pair of right-hand and left-hand massage members, a base member for pivotally supporting the mechanism at its lower end, a vertical movement mechanism for imparting a vertical motion to the base member, an advancing and retracting mechanism for rockably driving the massage mechanism, and a rock restricting mechanism for an adjusting an angle of rotation of the massage mechanism so that, when the device is in an upper position, an upper end of the massage member protrudes forward, whereas, in a lower position, a lower end thereof protrudes forward.
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