Surgery: kinesitherapy – Kinesitherapy – Vibrator
Patent
1997-04-09
1999-12-07
DeMille, Danton D.
Surgery: kinesitherapy
Kinesitherapy
Vibrator
601119, A61H 1500, A61H 100
Patent
active
059974893
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a handheld-type massager for providing a massage by applying a vibration to a roller adopted to make a rolling contact to a human body.
DISCLOSURE OF THE PRIOR ART
There is a massager comprising a roller supported rotatably at one end of a handle and having a peripheral surface used to contact a human body, and a vibration generating unit for providing a vibration to the roller. In a massager disclosed in Japanese Utility Model Publication No. 5-84328, a vibration is applied to a roller abutted against a surface of the human body and rolled along the body surface to provide a massage and improve blood circulation.
This massager exhibits a good handling property and provides a comfortable massage to a user in case of massaging by rolling the roller. However, when it is desired to provide a vibration massage without rolling the roller while contacting the roller to one portion of the human body, a preferred massage effect can not be obtained because a vibration to be applied to the human body are decreased by a rotation of the roller.
Additionally, in the massager disclosed in this prior art, the vibration generating unit comprising an eccentric weight which can be rotated by a motor is incorporated in the roller, and the roller is disposed such that a rotating axis of the roller is in agreement with the rotating axis of the eccentric weight. When a rotating direction of the roller is reversed, variations of the vibration applied to the human body through the roller occur according to a relationship between the rotating direction of the eccentric weight and a traveling direction of the roller. As a result, a preferred massage effect can not be obtained.
DISCLOSURE OF THE INVENTION
For improving the above problems, a primary object of the present invention is to provide a massager capable of effectively providing a vibration massage while a roller being rolled, and also a vibration massage through a non-rolling portion.
The massager of the present invention comprises a handle, a roller rotatably supported at one end of the handle and having a peripheral surface adopted to contact a human body, and a vibration generating unit for providing a vibration to the roller. A head for incorporating the vibration generating unit therein is formed at the end of the handle. The roller is disposed on an outer surface of the head to which the vibration is applied. Therefore, the massager of the present invention can selectively provide a vibration massage of applying a vibration to a skin through the roller rolled along the skin, and a vibration massage of applying a vibration to a skin through a peripheral portion of the head pressed against the skin. As a result, it is possible to provide an adequate vibration massage in accordance with the circumstances.
When the vibration generating unit is formed with an eccentric weight which can be rotated by a driving unit, and a rotating axis of the roller is in a non-parallel relation with a rotating axis of the eccentric weight, there is an advantage that when a vibration massage is given to a skin through the roller rolled along the skin, it is possible to provide a uniform vibration massage irrespective of the rolling direction. In addition, when the roller is disposed on a peripheral surface of the head in which the eccentric weight is incorporated, and the rotating axis of the roller is spaced away from the rotating axis of the eccentric weight so as not to be crossed with the rotating axis of the eccentric weight, a sufficient amount of vibration energy can be applied to the human body through the roller because the roller is uniformly vibrated as whole. As a result, a preferable and comfortable vibration massage can be obtained.
In addition, when a plurality of rollers are axially aligned, it is possible to provide a uniform vibration massage to a body portion having a small radius of curvature such as arm or foot as well as a body portion having a large radius of curvature such as back.
When a plurality of rol
REFERENCES:
patent: 2441686 (1948-05-01), Cohen
patent: 2688960 (1954-09-01), Fischer et al.
patent: 2699164 (1955-01-01), Stauffer
patent: 2972347 (1961-02-01), McNair
patent: 3313296 (1967-04-01), Ruuska
Fukui Sanai
Hata Keiji
Hirakawa Maki
Ito Mikio
Iwamoto Hironori
DeMille Danton D.
Matsushita Electric & Works Ltd.
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