Hand type electric massage machine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4846158
SERIAL NO

07233937

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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In a hand type electric massage machine, a vibration head is connected through a coupling spring to a top end portion of a hand case, and an unbalance weight is rotatably mounted to a top end portion of a rotary shaft so that the center of gravity of a weight element is positioned on a line extending radially from a bearing of the rotary shaft. The weight element is fixed to a part of the periphery of a lower end portion of a cylinder base having nearly covered cylindrical form including a disc portion and a skirt portion extending downward from the periphery of the disc portion. According to another feature of the present invention, the longitudinal ends of the vibration head are respectively provided with a curved surface extending in a vertical direction and with a curved profection surface having a smaller radius of curvature than that of the above-mentioned curved surface and lateral sides thereof include a spherical surface member having an elastic body and with a spherical surface member having a number of small projections, respectively. The size of the bearing can be varied and lubricating oil is not scattered, and the massage machine is suitable for massage in various modes.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Teranishi, Akihiko 110, 3-chomea, Hisakata, Tenpaku-ku, Nagoya City, Aichi Prefecture, JP 4 120

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