Supports, folding mechanisms and foldable supporting frames
AssigneeInno-Sports Co., Ltd.
InventorJu Young Jin
Life of this patent
Estimating the term…
Abstract
Disclosed are supports, folding mechanisms and foldable supporting frames. A foldable supporting frame includes a plurality of bent bars, folding mechanisms and supports. The bent bars are connected to each other by the folding mechanisms and the supports to form upper and lower frames of the foldable supporting frame. The foldable supporting frame can be folded and unfolded by rotating any one of the bent bars. When unfolded, the supports hold the upper frame in place and keep it flat and stable. When folded, the folding mechanisms and the supports allow the bent bars to move toward each other and fold onto each other. The folded supporting frame is compact and of a regular shape, making it easier to handle, package, store, and transport.
Claims19
A foldable supporting frame, comprising:
- a plurality of bent bars comprising first and second bent bars to form an upper frame, and third and fourth bent bars to form a lower frame, wherein each of the first, second, third and fourth bent bars comprises first and second free ends;
- a plurality of supports, each comprising a supporting piece, wherein the supporting piece has an upper part pivotally connected to the upper frame and a lower part pivotally connected to the lower frame;
- and
- a plurality of folding mechanisms comprising first and second folding mechanisms, wherein each of the first and second folding mechanisms comprises:
- a first link having a left upper part pivotally connected to the first or second free end of the first bent bar at a first pivot point, and having a right upper part pivotally connected to the first or second free end of the second bent bar at a second pivot point;
- a second link having a lower part coupled to the first or second free end of the third bent bar;
- and
- a third link having a lower part coupled to the first or second free end of the fourth bent bar,
- wherein a lower part of the first link and upper parts of the second and third links are pivotally connected to each other at a third pivot point, and
- wherein the first, second and third pivot points are positioned triangularly.
A foldable supporting frame, comprising:
- a plurality of bent bars comprising first, second, third and fourth bent bars, wherein each of the first, second, third and fourth bent bars comprises first and second free ends;
- a plurality of folding mechanisms comprising first and second folding mechanisms, wherein:
- the first folding mechanism pivotally connects the first free end of the first bent bar with the first free end of the second bent bar, and the second mechanism pivotally connects the second free end of the first bent bar with the second free end of the second bent bar, thereby forming an upper frame of the foldable supporting frame;
- and
- the first folding mechanism pivotally connects the first free end of the third bent bar with the first free end of the fourth bent bar, and the second mechanism pivotally connects the second free end of the third bent bar with the second free end of the fourth bent bar, thereby forming a lower frame of the foldable supporting frame;
- and
- a plurality of supports, each comprising:
- a supporting piece having an upper part pivotally connected to the upper frame of the foldable supporting frame and a lower part pivotally connected to the lower frame of the foldable supporting frame;
- and
- a restraining piece extended along a longitudinal edge of the supporting piece and bent at a predetermined angle with respect to the supporting piece, the restraining piece having an upper surface and a lower surface, wherein when the foldable supporting frame is unfolded, the upper surface of the restraining piece is below the upper frame of the foldable supporting frame and in direct contact with a lower surface of the upper frame, thereby preventing further unfolding of the foldable supporting frame.
Dependencies are inferred from the claim text.