Patent ID: 9182108
Filing Date: 2015-11-10
Classification: F16M,F21S,F21V

Abstract:
1. A foldable support device for a stand lamp, said foldable support device being adapted to be connected between a lamp base and a lighting unit of the stand lamp and comprising: a lower support member having a lower end configured to connect to the lamp base, and an upper end; and an upper support member having an upper end configured to connect to the lighting unit, and a lower end; said lower end of said upper support member being pivoted to said upper end of said lower support member such that said upper support member is foldable downwardly toward said lower support member and upwardly away from said lower support member; wherein each of said lower support member and said upper support member includes a front support component and a rear support component parallel to and arranged behind said front support component; wherein each of said front and rear support components of each of said lower and upper support members includes a bottom support rod having an upper end, a top support rod having a lower end pivoted to said upper end of said bottom support rod such that said top support rod is foldable downwardly toward one of left and right sides of said bottom support rod and upwardly away from said one of said left and right sides of said bottom support rod, and a pivot unit connecting pivotally said lower end of said top support rod to said upper end of said bottom support rod; wherein said pivot unit includes a main body, and said main body includes a base wall having left and right edges, and a pair of side walls extending transversely and respectively from said left and right edges of said base wall in a same direction; wherein said base wall and said side walls cooperate to define a space that receives said lower end of said top support rod and said upper end of said bottom support rod and that opens in the direction in which said side walls extend; wherein said spaces of said pivot units of said front and rear support components of said lower support member open in the same direction, and said spaces of said pivot units of said front and rear support components of said upper support member open in the same direction; wherein said pivot unit further includes a pair of pivot, pins, each extending through said side walls and through a respective one of said lower end of said top support rod and said upper end of said bottom support rod; wherein each of said front and rear support components of each of said lower and upper support members further includes a sleeve sleeved on and movable along one of said bottom and top support rods, and said sleeve is movable to surround said pivot unit when said lower end of said top support rod and said upper end of said bottom support rod are arranged to form a straight line in said space of said pivot unit to thereby arrest relative folding movement between said bottom and top support rods; wherein said sleeve is sleeved on and is movable along said top support rod, said main body of said pivot unit has a lower end proximate to said upper end of said bottom support rod and provided with at least one stop that is disposed outwardly of said space, and each of said front and rear support components of each of said lower and upper support members further includes at least one brake piece provided on an outer surface of said main body and having a protruding shape adjacent to said lower end of said main body; and wherein, when said sleeve is moved to surround said pivot unit, said at least one brake piece is disposed to brake movement of said sleeve, and said at least one stop is disposed to limit further movement of said sleeve.