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US 2019/0231078 A1Published application
Modular bed
AssigneeUlife Healthcare Inc.
InventorYa-Hsin Chung
Life of this patent
Estimating the term…
Abstract
A modular bed includes a base frame unit and a plurality of support frame units. Each of the support frame units includes a leading bar, a trailing bar, four mounting frames, four biasing members, a left linkage, and a right linkage. In response to loading or unloading of a retaining member of each of the left and right linkages, a respective one of the biasing members abuts against a top abutment wall or a bottom abutment wall of a respective one of the mounting frames so as to generate a counteracting force to counteract the loading or unloading movement of the retaining member, thereby providing a cushioning effect for the retaining member.
Claims7
A modular bed comprising a base frame unit, and a plurality of support frame units mounted on said base frame unit to be displaced from each other in a longitudinal direction, each of said support frame units including
- a leading bar and a trailing bar which are displaced from each other in the longitudinal direction, each of said leading and trailing bars having a left end segment and a right end segment opposite to said left end segment in a transverse direction relative to the longitudinal direction,
- four mounting frames each of which is mounted on a respective one of said left and right end segments of said leading and trailing bars, and each of which has
- a top abutment wall,
- a bottom abutment wall spaced apart from said top abutment wall in an upright direction, and
- two lateral walls which are spaced apart from each other in the longitudinal direction, and which define a cavity together with said top and bottom abutment walls, each of said lateral walls having a pivot region, and a journal region that is formed with a pin hole and that is opposite to said pivot region in the transverse direction,
- four biasing members each of which is disposed in said cavity of a respective one of said mounting frames, and each of which has
- a leaf spring having
- a base having an upward edge, a downward edge, and two juncture regions opposite to each other, and
- two legs each of which extends from a respective one of said juncture regions of said base in the transverse direction to terminate at a leg end, and
- a pair of pins which extend respectively from said leg ends of said legs and away from each other to terminate at two pin ends, and which are configured to extend respectively through said pin holes of said lateral walls of said respective mounting frame, so as to permit said pin ends to be disposed outwardly of said respective pin holes, respectively, and
- a left linkage and a right linkage, each for interconnecting a respective pair of said mounting frames, each of said left and right linkages including
- a retaining member extending in the longitudinal direction to terminate at two connected end segments, and
- a pair of levers each extending lengthwise from a respective one of said connected end segments to terminate at a coupled end segment which has two lugs disposed to flank said lateral walls of a respective one of said mounting frames, each of said lugs having
- a pivotal region pivotally mounted to a respective one of said pivot regions of said respective mounting frame about a fulcrum axis, and
- a weight region formed with an engaging slot which is configured to permit a respective one of said pin ends of said respective biasing member to be engageably received therein, and which, in response to loading or unloading on said retaining member, is brought into frictional engagement with said respective pin end at a first engaging end or a second engaging end to permit said upward edge or said downward edge of said base of said respective leaf spring to abut against said top abutment wall or said bottom abutment wall of said respective mounting frame so as to generate a counteracting force to counteract the loading or unloading movement of said retaining member, thereby providing a cushioning effect for said retaining member.
12 more elements
A modular bed comprising:
- a base frame unit;
- a plurality of support frame units mounted on said base frame unit to be displaced from each other in a longitudinal direction, at least one of said support frame units being pivotally mounted to said base frame unit, each of said support frame units including
- a leading bar and a trailing bar which are displaced from each other in the longitudinal direction, each of said leading and trailing bars having a left end segment and a right end segment opposite to said left end segment in a transverse direction relative to the longitudinal direction,
- four mounting frames each of which is mounted on a respective one of said left and right end segments of said leading and trailing bars,
- four position limiting members which are respectively mounted to said mounting frames, each of said position limiting members having a pin, and
- a left linkage and a right linkage, each for interconnecting a respective pair of said mounting frames, each of said left and right linkages including
- a retaining member extending in the longitudinal direction to terminate at two connected end segments, and
- a pair of levers each extending lengthwise from a respective one of said connected end segments to terminate at a coupled end segment which is pivotally mounted to said respective mounting frame about a fulcrum axis, and which has an engaging slot that extends to terminate at a first engaging end and a second engaging end, and that is configured to permit said pin of said respective position limiting member to be engageably received therein and to be engageable with said first or second engaging end so as to limit angular movement of said retaining member in response to loading or unloading on said retaining member;
- a plurality of support webs each of which is configured to be stretchable between said retaining members of said left and right linkages of a respective one of said support frame units for providing a counteract force which counteracts the loading movement of said respective retaining members;
- and
- a drive unit which is coupled between said base frame unit and said at least one of said support frame units so as to permit one of said leading and trailing bars of said at least one of said support frame units to be driven to move to an elevated position, where said one of said leading and trailing bars is remote from the ground, from a normal position, where said one of said leading and trailing bars is close to the ground.
8 more elements
Dependencies are inferred from the claim text.