Headrest for medical treatment chair

Details Headrest for medical treatment chair Headrest for medical treatment chair

A - Human Necessities

61

G

155/13, 155/55

A61G 15/00 (2006.01)

Patent

CA 1208532

HEADREST FOR MEDICAL TREATMENT CHAIR ABSTRACT OF THE DISCLOSURE A chair for human dental or medical treatment and having an improved adjustable headrest support. The chair features a flat curved linear strip member which extends between the headrest and the main frame of the chair. The strip member is guided by at least one, and preferably two pairs of opposed cylindrical guide rollers which contiguously straddle the strip member, so as to guide the motion of the strip member along its longitudinal axis, as it is displaced along its axis and towards or away from the frame, typically by a hydraulic mechanism. This makes pos- sible vertical direction of movement of the strip member. The hydraulic mechanism, or two mechanisms in tandem, are a pivoted floating mounting for the strip member which facilitates ready adjustment of the headrest support relative to the main frame and seat of the chair. At least one tension spring is provided to produce smooth backdown of the piston plunger and piston head when hydraulic fluid pressure in the cylinder is reduced. The uses for the present chair and integral headrest configuration include human dental, medical, beauty parlor, and barber shop treatment facilities and installations. -1-

419222

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