A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
155/61, 155/22.3
A47C 3/20 (2006.01)
Patent
CA 1037850
ABSTRACT OF THE DISCLOSURE This invention discloses a novel safety feature to be used in conjunction with chair controls of tiltable chairs. The chair controls used in the present invention include a biasing means which comprises a horizontal bolt (whose shaft includes a sheath thereon) extending from inside the fixed frame portion through the moveable frame portion of the chair control and mar- ginally beyond, a tension means to create tension in the biasing means and a tension control means adapted to control the tension in the tension means, whereby the biasing means is adapted to return the tilted portion of the chair to a position of rest when the tilting pressure is released. The safety feature comprises a downwardly depending plate on the front edge of the moveable frame portion of the chair control with an arch shaped aperture centrally therein through which the biasing means extends and a pair of ears on opposite sides of the sheath on the bolt of the biasing means in the moveable frame portion with a loosely fitted washer on the sheath between the plate and the ears. If the bolt breaks during operation, the bolt will project forward and the ears strike the washer which will then only project forward as far as the plate. The biasing means then drops harmlessly to the floor. This safety feature will prevent injury to the user of the chair or to the furniture situated in front of the chair should the bolt of the biasing means break during operation.
258139
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