A - Human Necessities – 47 – C
Patent
A - Human Necessities
47
C
5/17
A47C 19/04 (2006.01) A47C 20/04 (2006.01) A61G 7/012 (2006.01)
Patent
CA 1151355
ABSTRACT A driving device for lifting and lowering the platform of a bed or any other thing for sleeping or resting on, comprising a support cylinder containing a working rod extensibly, being provided, at one end, with a driving section and a locking section of said working rod, said working rod, having a driving piece loosely fitted movably in said driving section, a driving shaft, being provided close to one side of said driving piece, a driving protrusion for pushing said driving piece at said one side against the resilience of a return spring, being formed on said driving shaft, to move said driving piece forward by said driving pro- trusion and backward by said return spring, and to drive said working rod by the forward movement of said driving piece, and said working rod, having a locking piece fitted loosely, held at one side to move pivotally, and having a locking spring in said locking section, so that when said driving piece is moved back- ward by said return spring, said locking piece may be kept inclined by the resilience of said locking spring, to lock said working rod, is connected with a lifting member for lifting and lowering the platform of bed or any other thing for sleeping or resting on, by converting the displacement applied to the lifting member itself, to make a lifting device of said platform, and said driv- ing shaft is rotated in alternate directions by a lever, to move said working rod in one direction gradually, for raising said platform. - 17 -
369436
Iizuka Takayuki
Kimura Bed Mfg. Company Limited
Macrae & Co.
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