AU2008272604A1

AU2008272604A1 - A kind of air bed, folding bed and folding bedstead

Info

Publication number: AU2008272604A1
Application number: AU2008272604A
Authority: AU
Inventors: Huang Chang Jiu; Py Lee
Original assignee: North Pole US LLC
Current assignee: North Pole US LLC
Priority date: 2007-06-29
Filing date: 2008-06-30
Publication date: 2009-01-08
Also published as: WO2009004468A2; CN201067222Y; EP2178420A4; EP2178420B1; CA2693410A1; WO2009004468A9; EP2178420A2; WO2009004468A3

Description

WO 2009/004468 PCT/IB2008/001741 1 A kind of air bed, folding bed and folding bedstead Technical Field This utility model is a kind of bed and especially involves a kind of air bed, folding bed and folding bedstead. 5 Background Art The folding beds available at market include several "cross" folding frames, in which, the ends of the adjacent "cross" folding frames are pivot-connected, enabling the bedstead to be unfolded from the center to outside or folded from the outside to the center, and to occupy a small space when folded. However, the defects of such bedsteads lie in that the 10 bedstead, when unfolded and used, provides only the point-support to the mattress (such as air mattress), leading to an easy damage to the mattress and to a bedstead structure instability. Contents of the utility model This utility model provides a kind of air bed, folding bed and folding bedstead, which has 15 eliminated the defects of the existing folding bedsteads of easy mattress damage and instable bedstead structure. One technical solution adopted in this utility mode is a folding bedstead comprising at least two left-right paralleled rows of legs, each pair of adjacent front and back legs of the said two rows are connected with a sub-plane frame and the sub-plane frames are 20 pivot-connected in tandem series to form an organ-type folding general bedstead. In a good embodiment example of this utility model, the said sub-plane frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable and the first legs and the second legs in each row are arranged alternately. 25 In a good embodiment example of this utility model, the said legs are classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, WO 2009/004468 PCT/IB2008/001741 2 the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal tubes sliding-connected in the intermediate tubes; and the first legs and the second legs in each row are arranged alternately; 5 Each pair of the adjacent front and back first leg and second leg in each said row are connected with a "cross" folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external tubes and whose upper ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; 10 the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. In a good embodiment example of this utility model, the said sub-plane frames each comprise two longitudinal beams and at least one horizontal beam fixed between the two 15 longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front and back legs. In a good embodiment example of this utility model, a horizontal beam is fixed between the corresponding legs of the said two rows of legs. Another technical solution adopted in this utility model is an air bed comprising an air 20 mattress and a folding bedstead, which are connected together and the latter of which comprises at least two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of the said two rows are connected with a sub-plane frame and the sub-plane frames are pivot-connected in tandem series to form an organ-type folding general bedstead. 25 In a good embodiment example of this utility model, the said sub-plane frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable and the first legs and the second legs in each row are arranged alternately.

WO 2009/004468 PCT/IB2008/001741 3 In a good embodiment example of this utility model, the said legs are classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the 5 intermediate tubes sliding-connected in the second external tubes and the second internal tubes sliding-connected in the intermediate tubes, and the first legs and the second legs in each row are arranged alternately; the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected 10 respectively with the bottom ends of the first and second external tubes and whose upper ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the 15 second legs. In a good embodiment example of this utility model, the said sub-plane frames each comprise of two longitudinal beams, and at least one horizontal beam fixed between the two longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front and back legs. 20 In a good embodiment example of this utility model, a horizontal beam is fixed between the corresponding legs of the said two rows of legs. Still Another technical solution adopted in this utility model is a folding bed, comprising several supportive mattresses and folding bedsteads, which comprise at least two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of 25 the said two rows are connected with a sub-plane frame and the sub-plane frames are pivot-connected in tandem series to form an organ-type folding general bedstead and the supportive mattresses are connected on the sub-plane frames. In a good embodiment example of this utility model, the said sub-plane frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and WO 2009/004468 PCT/IB2008/001741 4 the second legs that are retractable and the first legs and the second legs in each row are arranged alternately. In a good embodiment of this utility model, the said legs are classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first 5 external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal tubes sliding-connected in the intermediate tubes; and the first legs and the second legs in each row are arranged alternately; 10 the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external tubes and whose upper ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; 15 the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. In a good embodiment example of this utility model, the said sub-plane frames each comprise two longitudinal beams and at least one horizontal beam fixed between the two 20 longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front and back legs. In a good embodiment example of this utility model, a horizontal beam is fixed between the corresponding legs of the said two rows of legs. Another technical solution adopted in this utility model is a folding bed comprising at least 25 two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of the said two rows are connected with a supportive mattress and the supportive mattresses are pivot-connected in tandem series to form an organ-type folding general bedstead.

WO 2009/004468 PCT/IB2008/001741 5 In a good embodiment example of this utility model, the said supportive mattresses are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable and the first legs and the second legs in each row are arranged alternately. 5 In a good embodiment example of this utility model, the said legs are classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal 10 tubes sliding-connected in the intermediate tubes; and the first legs and the second legs in each row are arranged alternately; the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external tubes and whose upper 15 ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; the said supportive mattresses are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. 20 In a good embodiment example of this utility model, a horizontal beam is fixed between the corresponding legs at the said two rows of legs. In the folding bedstead of this technical solution, the general plane frame comprises sub-plane frames connected in organ-type folding manner has eliminated the defects of the background art and has the following advantages: 1) it is fully foldable along the length 25 and therefore occupies only a small space; 2) the sub-plane frames of the bedstead support the mattresses, which is characterized by a stable support and no damage to the mattresses. The adjacent front and back first legs and second legs are connected with a cross folding frame between them and the sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the WO 2009/004468 PCT/IB2008/001741 6 second internal tubes of the second legs. In this way, not only the general frame forms an organ-type folding connection but also the legs of the folding bedstead constitutes an interlocking relation, which enables a one-time unfolding or folding in a rapid and convenient way. In the air bed, as the air mattress and the bedstead are connected together, 5 the bedstead will automatically be unfolded in the process of the air inflation of the air mattresses. Description of figures Further description is made of this utility model in combination with the figures and embodiment examples. 10 Figure 1 is a stereo diagram of the folding bedstead in No. 1 example which is in a fully unfolded status. Figure 2 is a stereo diagram of the folding bedstead in No. 1 example which is in a half-folded status. Figure 3 is a stereo diagram of the folding bedstead in No. 1 example which is in a fully 15 folded status. Figure 4 is a stereo diagram of the folding bedstead in No. 2 example which is in a fully unfolded status. Figure 5 is a stereo diagram of the folding bedstead in No. 2 example which is in a half-folded status. 20 Figure 6 is a stereo diagram of the folding bedstead in No. 2 example which is in a fully folded status. Figure 7 is a stereo diagram of the air bed in No. 3 example which is in a fully unfolded status. Figure 8 is a stereo diagram (1) of the air bed in No. 4 example which is in a fully unfolded 25 status. Figure 9 is a stereo diagram (2) of the air bed in No. 4 example which is in a fully unfolded status.

WO 2009/004468 PCT/IB2008/001741 7 Mode of Embodiment No. I Embodiment Example Please see Figs 1, 2 and 3. The folding bedstead comprises two left-right paralleled rows of 5 legs and the general plane frame. The legs in each row are of two types: one is the first leg 10, which is a two-section retractable one that comprises the first external tube 11 and the first internal tube 12 sliding-connected in the external tube 11. The first lower pivot receptacle is provided at the bottom end of the first external tube 11, the first intermediate pivot receptacle at the top 10 end of the first external tube 11 and the first upper pivot receptacle at the top end of the first internal tube12; the other is the second tube 20, which is a three-section retractable one that comprises the second external tube 21, the intermediate tube 22 sliding-connected in the second external tube 21 and the second internal tube 23 sliding-connected in the intermediate tube 22. The second lower pivot receptacle is provided at the bottom end of 15 the second external tube 21, the second intermediate pivot receptacle at the top end of the intermediate tube 22 and the second upper pivot receptacle at the top end of the second internal tube 23. Each row of legs includes three first legs 10 and two second legs 20 and the said three first legs 10 and two second legs 20 are arranged alternatively. Each pair of the adjacent 20 front-back first leg 10 and the second leg 20 in each row are connected with a "cross" folding frame 30, whose two lower ends are connected respectively with the first lower pivot receptacle at the bottom end of the first external tube 11 and the second lower pivot receptacle at the bottom end of the second external tube 21, whose upper ends are connected respectively with the first upper pivot receptacle at the top end of the first 25 internal tube 12 and the second middle pivot receptacle at the top end of the intermediate tube 22. According to the need, the left-right corresponding legs of the two rows of legs are connected with a "cross" folding frame between them, and a horizontal beam 14 is fixed between the first middle pivot receptacles at the top end of the first external tubes 11 of the WO 2009/004468 PCT/IB2008/001741 8 two first legs 10 and another horizontal beam 24 is fixed between the second upper pivot receptacles at the top end of the second internal tubes 23of the two second legs 20. The general plane frame includes four sub-plane frames 40 comprising two longitudinal beams 41 and at least one horizontal beam 42 fixed between the two horizontal beams 41. 5 If necessary, short reinforcing members can be fixed between two horizontal beams 42. The both ends of the longitudinal beams 41 are pivot-connected correspondingly to the first middle pivot receptacle at the top end of the first external tube II of the first leg 10 and the second upper pivot receptacle at the top end of the second internal tube 23of the second leg 20. The tandem pivot-connection of the first and the second upper pivot 10 receptacles enables the four sub-plane frames 40 to form an organ-type folding. No.2 Embodiment Example Please see Figs 4, 5 and 6. The folding bedstead comprises two left-right paralleled rows of legs and the general plane frame. The legs in each row are of two types: one is the first leg 10, which is un-retractable and is 15 provided with the first lower pivot receptacle at the bottom end and the first upper pivot receptacle at the top end; the other is the second leg 20, which is a three-section retractable one that comprises the second external tube 21, the intermediate tube 22 sliding-connected in the second external tube 21 and the second internal tube 23 sliding-connected in the intermediate tube 22. The second lower pivot receptacle is provided at the bottom end of 20 the second external tube 21, and the second upper pivot receptacle at the top end of the second internal tube 23. Each row of legs includes three first legs 10 and two second legs 20 and the said three first legs 10 and two second legs 20 are arranged alternatively. According to the need, the left-right corresponding legs of the two rows of legs are 25 connected with a "cross" folding frame between them, and a horizontal beam 14 is fixed between the first upper pivot receptacles at the top end of the two first legs 10 and another horizontal beam 24 is fixed between the second upper pivot receptacles at the top end of the second internal tubes 23of the two second legs 20.

WO 2009/004468 PCT/IB2008/001741 9 The general plane frame includes four sub-plane frames 40 comprising two longitudinal beams 41 and at least one horizontal beam 42 fixed between the two longitudinal beams 41. If necessary, short reinforcing members can be fixed between two horizontal beams 42. The both ends of the longitudinal beams 41 are pivot-connected correspondingly to the 5 first upper pivot receptacle at the top end of the first leg 10 and the second upper pivot receptacle at the top end of the second internal tube 23 of the second leg 20. The tandem pivot-connection of the first and the second upper pivot receptacles enables the four sub-plane frames 40 to form an organ-type folding. No.3 Embodiment Example 10 Please see Fig. 7. This example is a kind of air bed comprising an air mattress 50 and a folding bedstead. The air mattress 50 comprises a mantle and an inflation internal core. The mantle is provided with a closable opening, enabling the client to either put the inflation core in the mantle or to take it outside the mantle according to the need. The folding bedstead is as described in No. 1 Embodiment Example. The said mantle is 15 connected on the first and second pivot receptacle of the bedstead. No.4 Embodiment Example Please see Figs. 8 and 9. This example is a kind of sectional air bed comprising two air mattresses 50 and two folding bedsteads. The said air mattress 50 comprises a mantle and an inflation internal core. The mantle is provided with a closable opening, enabling the 20 client to either put the inflation core in the mantle or to take it outside the mantle according to the need. The folding bedstead structure is different from that in No. 1 Embodiment Example in that: a clamp is provided on the pivot receptacle on the side of a folding bedstead and a buckle is provided on the pivot receptacle on the corresponding side of another folding bedstead, and the clamp and the buckle form a detachable buckle structure 25 and a rotatable connection when integrated with each other. The mantles of the two said air mattresses 50 are connected respectively on the two folding bedsteads. No.5 Embodiment Example This example is a kind of folding bed comprising four supportive mattresses that are fixed on the sub-plane frames and a folding bedstead that is as described in No. I or No. 2 WO 2009/004468 PCT/IB2008/001741 10 example. No. 6 Embodiment Example This example is different from the No. 5 one in that: the said supportive mattresses are the sub-plane frames. 5 The above ones are only good examples of embodying this utility model and can not be used to limit the embodiment scope of this utility model. That is, any equivalent alterations and decorations based on the scope of the application for a patent for this utility model and the content of its description shall be within the scope covered by this utility model patent.

Claims

1. A kind of folding bedstead comprising at least two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of the two rows are connected with a sub-plane frame and the sub-plane frames are pivot-connected in tandem series to form an organ-type folding general bedstead. 5

2. The folding bedstead as claimed in Claim 1, characterized in that the said sub-plane frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable, and the first legs and the second legs in each row are arranged alternately.

3. The folding bedstead as claimed in Claim 1, characterized in that: 10 the said legs are classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal tubes 15 sliding-connected in the intermediate tubes; and the first legs and the second legs in each row are arranged alternately; the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external 20 tubes and whose upper ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. 25

4. The folding bedstead as claimed in Claims 1, 2 or 3, characterized in that the said sub-plane frame comprises two longitudinal beams and at least one horizontal beam fixed between the two longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front and back legs. WO 2009/004468 PCT/IB2008/001741 12

5. The folding bedstead as claimed in Claims 1, 2 or 3, characterized in that a horizontal beam is fixed between the corresponding legs of the said two rows of legs.

6. A kind of air bed, comprising an air mattress and a folding bedstead, which are 5 connected together and the latter of which comprises at least two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of the said two rows are connected with a sub-plane frame and the sub-plane frames are pivot-connected in tandem series to form an organ-type folding general bedstead. 10

7. The air bed as claimed in Claim 6, characterized in that its sub-plane frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable, and the first legs and the second legs in each row are arranged alternately.

8. The air bed as claimed in Claim 6, characterized in that the said legs are 15 classified into the first legs and the second legs, the first legs are retractable two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal tubes 20 sliding-connected in the intermediate tubes, and the first legs and the second legs in each row are arranged alternately; the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external 25 tubes and whose upper ends are pivot-connected with the top ends of the first internal tubes and the intermediate tubes; the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. WO 2009/004468 PCT/IB2008/001741 13

9. The air bed as claimed in Claims 6, 7 or 8, characterized in that the said sub-plane frames each comprise of two longitudinal beams and at least one horizontal beam fixed between the two longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front 5 and back legs.

10. The air bed as claimed in Claims 6, 7 or 8, characterized in that a horizontal beam is fixed between the corresponding legs of the said two rows of legs.

11. A kind of folding bed, comprising several supportive mattresses and folding bedsteads, each of which comprises at least two left-right paralleled rows of legs, 10 characterized in that each pair of adjacent front and back legs of the said two rows are connected with a sub-plane frame, the sub-plane frames are pivot-connected in tandem series to form an organ-type folding general bedstead, and the said supportive mattresses are connected on the sub-plane frames.

12. The folding bed as claimed in Claim 11, characterized in that the said sub-plane 15 frames are connected at the leg top; the legs are classified into the first legs that are un-retractable and the second legs that are retractable and the first legs and the second legs in each row are arranged alternately.

13.The air bed as claimed in Claim 12, characterized in that the said legs are classified into the first legs and the second legs, the first legs are retractable 20 two-section ones comprising the first external tubes and the first internal tubes sliding-connected in the first external tubes, the second legs are retractable three-section ones comprising the second external tubes, the intermediate tubes sliding-connected in the second external tubes and the second internal tubes sliding-connected in the intermediate tubes; and the first legs and the second legs in 25 each row are arranged alternately; the adjacent front and back first legs and the second legs in each said row are connected with a cross folding frame between them, whose both lower ends are pivot-connected respectively with the bottom ends of the first and second external tubes and whose upper ends are pivot-connected with the top ends of the first WO 2009/004468 PCT/IB2008/001741 14 internal tubes and the intermediate tubes; the said sub-plane frames are pivot-connected at the front and back sides respectively with the top ends of the first external tubes of the first legs and the second internal tubes of the second legs. 5

14. The air bed as claimed in Claims 11, 12 or 13, characterized in that each of the said sub-plane frames comprises two longitudinal beams and at least one horizontal beam fixed between the two longitudinal beams, and the two ends of each longitudinal beam are pivot-connected respectively with two adjacent front and back legs. 10

15. The folding bedstead as claimed in Claims 11, 12 or 13, characterized in that a horizontal beam is fixed between the corresponding legs of the said two rows of legs.

16. A kind of folding bed, comprising at least two left-right paralleled rows of legs, characterized in that each pair of adjacent front and back legs of the said two rows 15 are connected with a supportive mattress and the supportive mattresses are pivot-connected in tandem series to form an organ-type folding general bedstead.