초록 ▼

A device for creating vibration within a chair which provides a therapeutic benefit to users. The chair has a control for adjusting the frequency of the vibrations and the amplitude of the vibrations, providing a wide variety of therapeutic results. The circuit powering the vibration sources within

A device for creating vibration within a chair which provides a therapeutic benefit to users. The chair has a control for adjusting the frequency of the vibrations and the amplitude of the vibrations, providing a wide variety of therapeutic results. The circuit powering the vibration sources within the chair employs a unique design that acts as a heat sink, effectively drawing heat away from the vibration sources and thus extending their useful life. The vibration sources may be incorporated into the seating furniture of vehicles such as automobiles or airplanes to provide relief from the strain associated with trips of extended duration. The structure has a sufficiently low profile to lend itself to placement in seating used in vehicles which have rather stringent dimensional requirements.

대표청구항 ▼

A chair-like article of furniture for providing vibrational sensation to a user, comprising: (a) an upper furniture back portion providing support for the user\s upper torso; (b) a lower furniture seat portion providing support for the user\s lower torso, said upper furniture back portion and said l

A chair-like article of furniture for providing vibrational sensation to a user, comprising: (a) an upper furniture back portion providing support for the user\s upper torso; (b) a lower furniture seat portion providing support for the user\s lower torso, said upper furniture back portion and said lower furniture seat portion operatively coupled to generally define a chair; (c) a plurality of electric motor vibration sources located within said upper furniture back portion and said lower furniture seat portion; (d) a motor driving circuit means for supplying both pulse-width modulation and voltage regulation/stabilization while providing necessary voltage to control said electric motor vibration sources said motor driving circuit means including a comparator; and (e) a speed control external to said motor driving circuit and operatively coupled thereto allowing variation in vibrational frequency of said electric motor vibration sources connected to said motor driving circuit.