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US 9,848,710 B2Granted
Foldable bed frame with vertical and crossed bars and bed having same
AssigneeCampvalley (Xiamen) Co., Ltd.
InventorKwan Jun Choi
Life of this patent
Estimating the term…
Abstract
Disclosed are foldable bed frames and beds. A foldable bed frame includes longitudinal bars, supporting assemblies to support the longitudinal bars, and links to couple one or more supporting assemblies with the longitudinal bars. Each supporting assembly includes vertical and crossed bars. When the beds are unfolded and in use, the vertical bars support the longitudinal bars and bear majority of the load. As such, the bed frames and beds are stable and safe to use.
Claims21
A foldable bed frame comprising:
- left and right longitudinal bars disposed respectively at a left side and a right side of the foldable bed frame when the foldable bed frame is unfolded, each of the left and right longitudinal bars comprising first and second longitudinal bars pivotally connected to each other at adjacent end portions thereof;
- front, middle and rear supporting assemblies disposed respectively at a front portion, a middle portion and a rear portion of the foldable bed frame and supporting the left and right longitudinal bars when the foldable bed frame is unfolded, wherein each of the front, middle and rear supporting assemblies comprises:
- a left vertical bar having a fixed length, an upper end portion and a lower end portion thereof, with the upper end portion thereof pivotally connected to the left longitudinal bar at a front portion, a middle portion, or a rear portion thereof;
- a right vertical bar having a fixed length, an upper end portion and a lower end portion thereof, with the upper end portion thereof pivotally connected to the right longitudinal bar at a front portion, a middle portion, or a rear portion thereof;
- a crossed bar pair comprising a first crossed bar and a second crossed bar pivotally connected to each other at middle portions thereof, wherein
- each of the first and second crossed bars has an upper end portion and a lower end portion;
- the upper end portion of the first crossed bar is pivotally connected to the upper end portion of the left vertical bar or pivotally connected to the left longitudinal bar at the front portion, the middle portion, or the rear portion thereof;
- and
- the upper end portion of the second crossed bar is pivotally connected to the upper end portion of the right vertical bar or pivotally connected to the right longitudinal bar at the front portion, the middle portion, or the rear portion thereof;
- a left base coupled to the lower end portion of the left vertical bar and the lower end portion of the second crossed bar when the foldable bed frame is unfolded;
- and
- a right base coupled to the lower end portion of the right vertical bar and the lower end portion of the first crossed bar when the foldable bed frame is unfolded;
- left and right front links, each having an upper end portion and a lower end portion thereof, wherein the upper end portion of the left or right front link is pivotally connected to the first longitudinal bar of the left or right longitudinal bar, and the lower end portion of the left or right front link is pivotally connected to the left or right base of the front supporting assembly;
- and
- left and right rear links, each having an upper end portion and a lower end portion thereof, wherein the upper end portion of the left or right rear link is pivotally connected to the second longitudinal bar of the left or right longitudinal bar, and the lower end portion of the left or right rear link is pivotally connected to the left or right base of the rear supporting assembly.
12 more elements
A foldable bed frame comprising:
- left and right longitudinal bars disposed respectively at a left side and a right side of the foldable bed frame when the foldable bed frame is unfolded, each of the left and right longitudinal bars comprising first and second longitudinal bars pivotally connected to each other at adjacent end portions thereof;
- front, middle and rear supporting assemblies disposed respectively at a front portion, a middle portion and a rear portion of the foldable bed frame and supporting the left and right longitudinal bars when the foldable bed frame is unfolded, wherein each of the front, middle and rear supporting assemblies comprises:
- a left vertical bar having an upper end portion and a lower end portion thereof, with the upper end portion thereof pivotally connected to the left longitudinal bar at a front portion, a middle portion, or a rear portion thereof;
- a right vertical bar having an upper end portion and a lower end portion thereof, with the upper end portion thereof pivotally connected to the right longitudinal bar at a front portion, a middle portion, or a rear portion thereof;
- a crossed bar pair comprising a first crossed bar and a second crossed bar pivotally connected to each other at middle portions thereof, wherein each of the first and second crossed bars has an upper end portion and a lower end portion;
- the upper end portion of the first crossed bar is pivotally connected to the upper end portion of the left vertical bar or pivotally connected to the left longitudinal bar at the front portion, the middle portion, or the rear portion thereof;
- and
- the upper end portion of the second crossed bar is pivotally connected to the upper end portion of the right vertical bar or pivotally connected to the right longitudinal bar at the front portion, the middle portion, or the rear portion thereof;
- a left base coupled to the lower end portion of the left vertical bar and the lower end portion of the second crossed bar when the foldable bed frame is unfolded;
- and
- a right base coupled to the lower end portion of the right vertical bar and the lower end portion of the first crossed bar when the foldable bed frame is unfolded;
- left and right front links, each having an upper end portion and a lower end portion thereof, wherein the upper end portion of the left or right front link is pivotally connected to the first longitudinal bar at a position between the front supporting assembly and the middle supporting assembly of the left or right longitudinal bar, and the lower end portion of the left or right front link is pivotally connected to the left or right base of the front supporting assembly;
- and
- left and right rear links, each having an upper end portion and a lower end portion thereof, wherein the upper end portion of the left or right rear link is pivotally connected to the second longitudinal bar at a position between the middle supporting assembly and the rear supporting assembly of the left or right longitudinal bar, and the lower end portion of the left or right rear link is pivotally connected to the left or right base of the rear supporting assembly.
11 more elements
Dependencies are inferred from the claim text.