TWI879527B - Adjustable width bed frame - Google Patents

Abstract

The invention is a bed frame with adjustable width, comprising a main frame, an extension frame and two connecting rods, wherein the main frame has two transverse extensions which are parallel to each other, and a longitudinal rod connecting the two transverse extensions; the extension frame has two supporting arms whose positions correspond to the two transverse extensions of the main frame, and two stoppers which are respectively arranged on the two supporting arms; each of the connecting rods is hinged to the corresponding transverse extension and the supporting arm with its two ends, and each of the connecting rods is in contact with the top edge of each stopper and the longitudinal rod; wherein the extension frame can be flipped up together with the two connecting rods and swung to the top side of the main frame, so that the two supporting arms are close to the two transverse extensions to reduce the width of the bed frame. Thereby, the width of the bed frame can be reduced so that the size of the package can fall into the lower charging level of the transport operator, thereby reducing costs and improving market competitiveness.

Description

Adjustable width bed frame

The present invention relates to a bed, and in particular to a bed frame with adjustable width.

Generally, beds have specific sizes to meet the needs of use. For example, a single bed is about 105 cm wide and 188 cm long (US size is 54×75"), a double bed (Queen size) is about 152 cm wide and 188 cm long (US size is 60×80"), and a king bed (King size) is about 152 cm wide and 188 cm long (US size is 60×80"). size) is about 182 cm wide and 212 cm long (the US size is 76×80"). For manufacturers, how to reduce the packaging size so that the length, width and height meet the lower charging levels of transport operators or warehouse operators to save freight and reduce costs has become one of the key factors in whether the final market price can be accepted by consumers. Especially with the popularization of online sales today, more and more consumers use express delivery companies as a transportation medium. Once the length, width and height of the packaging exceed the relevant regulations, the freight may increase by hundreds of US dollars.

One of the purposes of the present invention is to provide a bed frame with adjustable width, which can reduce the width of the bed frame so that the size of its packaging can fall into the lower charging range of the transport operator, thereby reducing costs and improving market competitiveness.

In order to achieve the above-mentioned purpose, the width-adjustable bed frame of the present invention comprises a main frame, an extension frame and two connecting rods. The main frame has two transverse extensions parallel to each other and a longitudinal rod connecting the two transverse extensions; the extension frame has two supporting arms corresponding to the two transverse extensions of the main frame, and two stoppers are respectively arranged on the two supporting arms; each of the connecting rods is hinged to the corresponding transverse extension and the supporting arm with its two ends, and each of the connecting rods is in contact with the top edge of each stopper and the longitudinal rod; wherein the extension frame can be flipped up together with the two connecting rods and swung to the top side of the main frame, so that the two supporting arms are close to the two transverse extensions to reduce the width of the bed frame. In this way, the width of the bed frame can be reduced so that the packaging size can fall into the lower charging range of the transport operator, thereby reducing costs and improving market competitiveness.

1: Adjustable width bed frame

10: Base frame

12: Front rack

14: Rear rack

20: Main frame

22: Horizontal extension

24: Vertical pole

26: Strengthening rod

30: Extension rack

32: Support arm

34: Stopper

36: longitudinal extension

40: Connecting rod

50:Actuator

55: Footpost

60: Connecting device

62: Joint

63: Substrate

64: Vertical board

65:Piercing

66: Positioning piece

Figures 1 and 2 are three-dimensional diagrams of a bed frame with adjustable width according to a preferred embodiment of the present invention; Figure 3 is a schematic diagram of the operation of a bed frame with adjustable width according to a preferred embodiment of the present invention; Figures 4 and 5 are schematic diagrams of the folded state of the extension frame of the bed frame with adjustable width according to a preferred embodiment of the present invention; Figure 6 is a schematic diagram of the folded state of the bed frame with adjustable width according to a preferred embodiment of the present invention.

The following is a detailed description of the technical content and features of the present invention by means of a preferred embodiment with accompanying drawings. As shown in FIG. 1-2, a bed frame 1 with adjustable width provided by a preferred embodiment of the present invention includes a base frame 10, five main frames 20 disposed above the base frame 10, ten extension frames 30 disposed in pairs on the left and right sides of the corresponding main frames 10, twenty connecting rods 40 connecting the corresponding main frames 20 and extension frames 30, two actuators 50, and six legs 55. For the convenience of explanation, the front F in this article refers to the direction of the head of the bed, the rear R refers to the direction of the foot of the bed, and the left L, right R, top U and bottom D of the bed frame are indicated by arrows in FIG. 1, respectively, but the direction should not be used as a limitation of the scope of the patent.

The base frame 10 includes a front frame 12 and a rear frame 14 which are pivotally connected to each other. The front frame 12 is in a U-shape with an opening facing backwards, and the rear frame 14 is in a U-shape with an opening facing forwards.

The main frames 20 are arranged above the base frame 10. The main frames 20 can be used as back support frames (the first main frame 20 counted from the head of the bed), hip support frames (the second and third main frames 20 counted from the head of the bed), thigh support frames (the fourth main frame 20 counted from the head of the bed) or calf support frames (the fifth main frame 20 counted from the head of the bed), wherein two hip support frames are fixed to the front frame 12 and the rear frame 14 respectively, the back support frame is hinged to one hip support frame, the thigh support frame is hinged to another hip support frame, and the calf support frame is hinged to the thigh support frame. Since the structures of the main frames 20 are similar, for the sake of simplicity, the second main frame 20 is taken as an example, as shown in Figure 2. The main frame 20 has two parallel transverse extensions 22 and two longitudinal rods 24 connecting the two transverse extensions 22. The two transverse extensions 22 are two straight rods extending in the left and right directions and arranged in front and back. The two longitudinal rods 24 extend in the front and back directions and are respectively arranged at the bottom edges of the two ends of the two transverse extensions 22. Other main frames 20 may be provided with different numbers of reinforcing rods 26 to have sufficient structural strength, and the transverse extensions 22 may also be other shapes instead of straight rods.

The extension frames 30 are arranged in pairs on the left and right sides of the main frames 20. Since the structures of the extension frames 30 are similar, for simplicity of description, the second extension frame 30 on the right side of the bed head is taken as an example, as shown in FIG. 2, the extension frame 30 has two support arms 32 corresponding to the two horizontal extensions 22 of the main frame 20, and two stoppers 34 are respectively arranged on the two support arms 32. The bottom edge of the extension frame 30 and the two longitudinal extensions 36 connect the two supporting arms 32. The two supporting arms 32 are straight rods extending in the left and right directions. The two stoppers 34 are in the form of thick sheets and extend from the two supporting arms 32 in opposite directions. The two longitudinal extensions 36 are straight rods extending in the front and back directions. Their function is to fix the two supporting arms 32 so that the extension frame 30 has sufficient structural strength. The sizes and shapes of other extension frames 30 may be different.

The connecting rods 40 are used to connect the corresponding main frame 20 and the extension frame 30. Since the structures of the connecting rods 40 are exactly the same, the two connecting rods 40 corresponding to the second main frame 20 and the second extension frame 30 on the right side are taken as an example. Each connecting rod 40 is connected at its two ends to the inner side of the corresponding cross-extension portion 22 of the main frame 20 and the inner side of the support arm 32 of the extension frame 30, that is, the two connecting rods 40 are located between the two cross-extension portions 22. And located between the two supporting arms 32, each connecting rod 40 is in contact with the top edge of each stopper 34 and the top edge of the longitudinal rod 24, so that the connecting rod 40 is supported by the longitudinal rod 24 to maintain horizontality, and the stopper 34 is restricted by the connecting rod 40 to keep the supporting arm 32 in the same horizontal state, so that the extension frame 30 is in the unfolded state and located on the right side of the main frame 20, and the top edge of the supporting arm 32 is roughly flush with the top edges of the two transverse extensions 22.

The two actuators 50 are pivoted at their two ends on the base frame 10 and the first main frame 20 and the fourth main frame 20 from the head of the bed, respectively, so that the two main frames 20 can swing upward relative to the base frame 10 when the two actuators 50 are extended, as shown in FIG3 .

The six-legged column 55 is disposed at the bottom edge of the base frame 10 to raise the base frame 10.

By means of the above design, the extension frames 30 can be turned up together with the corresponding two connecting rods 40 and swung to the top side of the main frame 20, so that the two supporting arms 32 are close to the two horizontal extensions 22, thereby reducing the width of the bed frame 1, as shown in Figures 4-5, for example, from 189cm to 138cm. If the front frame 12 and the rear frame 14 are hinged and folded, the length of the frame 1 can be further reduced to half of the original, for example, from 212cm to 106cm, thereby, the size of the bed frame packaging can fall into the lower charging level of the transport operator, so as to reduce costs and improve market competitiveness, thereby achieving the purpose of the cost invention.

In order to speed up the folding speed and improve the structural stability, the bed frame 1 with adjustable width can be further provided with a connecting device 60 between two adjacent extension frames 30. The connecting device 60 connects the adjacent extension frames 30 together so that the extension frames 30 can rotate relative to the main frame 20 together. The connecting device 60 has two hinges 62 respectively disposed on the adjacent supporting arms 32 of the two extension frames 30. Each hinge is in an L-shaped sheet and has a base plate 63 attached to the supporting arm 32, a vertical plate 64 vertically extending from the base plate 63, and a through hole 65 disposed on the vertical plate 64. The through holes of the two hinges 62 correspond to each other and are used for a positioning member 66 to penetrate. The positioning member 66 can be a bolt, a latch or the like. In this way, the adjacent extension frames 30 can be folded or unfolded relative to the main frame 20 together, and when the actuator 50 drives the main frame 20 to swing relative to the base frame 10, the adjacent extension frames 30 can also move together with the main frame 20. In addition, since a plurality of extension frames 30 are connected together, the structure can be made more stable.

Based on the design spirit of the present invention, the structure of the adjustable width bed frame 1 can have other changes, for example: the role of the longitudinal rod 24 is to fix the two transverse extensions 22 and provide the two connecting rods 40 with abutment. If there are other reinforcing rods 26 to fix the two transverse extensions 22, the longitudinal rod 24 can also be divided into two, so that its structure is similar to the stopper of the extension frame 30. 34, providing a blocking function for the two connecting rods 40; similarly, the two blocking portions 34 can also be combined into one to form a structure similar to the longitudinal rod 24, so as to connect the two supporting arms 32 and provide a function similar to the longitudinal extension portion 36; the connecting rods 40 can also be relocated to the outer side of the two transverse extension portions 22 and/or the outer side of the two supporting arms 32, and the longitudinal extension portion 36 can be connected to the two supporting arms 32. The rod 24 and the stopper 34 need to extend to the outside of the two transverse extensions 22 and the two supporting arms 32 accordingly; the top surface of the longitudinal rod 24 only needs to be lower than the top surface of the transverse extension 22, and does not necessarily need to be located at the bottom edge of the two transverse extensions 22; similarly, the top surface of the stopper 34 only needs to be lower than the top surface of the supporting arm 32, and does not necessarily need to be located at the bottom edge of the two transverse extensions 22. At the bottom edge of the two supporting arms 32; the base frame 10 may not have a folding function; the number and position of the main frame 20, the extension frame 30 and the connecting rod 40 can be changed according to needs; the connecting device 60 can also use hooks, adhesives or other structures; the number of the actuators 50 can be increased or decreased or even omitted according to needs, and the number of the foot columns 55 can also be increased or decreased or omitted. All these easily conceivable structural changes should be covered by the scope of the patent application of this invention.

1: Adjustable width bed frame

12: Front rack

14: Rear rack

20: Main frame

30: Extension rack

40: Connecting rod

50:Actuator

55: Footpost

60: Connecting device

Claims (9)

A bed frame with adjustable width comprises: a main frame having two parallel transverse extensions and a longitudinal rod connecting the two transverse extensions; an extension frame having two supporting arms corresponding to the two transverse extensions of the main frame and two stoppers respectively arranged on the two supporting arms; and two connecting rods, each connecting rod having its two ends pivotally connected to the corresponding transverse extension and the supporting arm, and each connecting rod abuts against the top edge of each stopper and the longitudinal rod; wherein the extension frame can be flipped up together with the two connecting rods and swung to the top side of the main frame, so that the two supporting arms are close to the two transverse extensions to reduce the width of the bed frame. A bed frame with adjustable width as described in claim 1, wherein the two connecting rods are located between the two cross extensions and between the two supporting arms. A bed frame with adjustable width as described in claim 2, wherein the two stop portions extend from the two supporting arms towards each other. A bed frame with adjustable width as described in claim 3, wherein the two stop portions are arranged at the bottom edges of the two supporting arms. A bed frame with adjustable width as described in claim 1, wherein the longitudinal rod is arranged at the bottom edge of the two horizontal extensions. The width-adjustable bed frame as described in claim 1 further includes a bottom frame located below the main frame, and an actuator with its two ends respectively pivoted on the bottom frame and the main frame, so that the main frame can rotate upward relative to the bottom frame. The width-adjustable bed frame as described in claim 1 comprises two main frames arranged in a front-to-rear direction, two extension frames whose positions correspond to the two main frames, four connecting rods whose two ends are pivotally connected to the corresponding cross-extension parts and the supporting arms, and a connecting device connecting the two extension frames together so that the two extension frames can rotate together relative to the main frames. A bed frame with adjustable width as described in claim 7, wherein the connecting device has two pivot parts respectively arranged on the adjacent supporting arms of the two extension frames, and the two pivot parts have corresponding through holes for a positioning piece to pass through. A bed frame with adjustable width as described in claim 8, wherein each hinge portion is in the form of an L-shaped sheet and has a base plate attached to the supporting arm, and a vertical plate extending from the base plate, and the through hole is provided on the vertical plate.

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