Locking device, collapsible support frame assembly using the locking device
AssigneeJarllytec Co., Ltd.
InventorLien-Ming Liu
Life of this patent
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Abstract
A collapsible support frame assembly includes a support frame having two parallel sliding rails, a slide holder coupled to and movable along the sliding rails of the support frame, a constant force spring mounted between the support frame and the slide holder, and a locking device having a casing affixed to the support frame and a stop member pivotally mounted in an accommodation chamber inside the casing. When the support frame is turned from a vertical position to a horizontal position, the stop member is forced by the gravity thereof to bias out of the accommodation chamber relative to the casing and to stop against the slide holder, thereby locking the slide holder, facilitating packing and delivery.
Claims14
A collapsible support frame assembly, comprising:
- a support frame, said support frame comprising two sliding rails arranged in parallel at two opposite lateral sides thereof;
- a slide holder coupled to and movable along said sliding rails of said support frame;
- a constant force spring mounted between said support frame and said slide holder;
- and
- at least one locking device, each said locking device comprising a casing affixed to said support frame, an accommodation chamber defined in said casing, and a stop member pivotally mounted in said casing, said stop member having coupling device disposed at a top side thereof and pivotally connected to a part of said casing inside said accommodation chamber;
- wherein when said support frame is turned from a vertical position to a horizontal position, said stop member is forced by the gravity thereof to bias out of said accommodation chamber relative to said casing and to stop against said slide holder, thereby locking said slide holder;
- wherein said accommodation chamber extends vertically through top and bottom sides of said casing;
- said casing comprises two pivot holes axially aligned at two opposite lateral sides relative to said accommodation chamber and two stop flanges bilaterally suspending inside said accommodation chamber above said pivot holes.
A locking device, comprising:
- a casing, said casing comprising an accommodation chamber and stop device disposed at a top side relative to said accommodation chamber;
- and
- a stop member, said stop member having coupling device disposed at one side thereof and pivotally mounted inside said accommodation chamber;
- wherein when said casing is rotated through a predetermined angle, said stop member is turned out said accommodation chamber from an unlocking position to a locking position;
- wherein said accommodation chamber extends vertically through top and bottom sides of said casing;
- said casing comprises two pivot holes axially aligned at two opposite lateral sides relative to said accommodation chamber and two stop flanges bilaterally suspending inside said accommodation chamber above said pivot holes.
Dependencies are inferred from the claim text.