CN101480304B - Folding type bedstead and air bed with the folding type bedstead - Google Patents
Folding type bedstead and air bed with the folding type bedstead Download PDFInfo
- Publication number
- CN101480304B CN101480304B CN200910037053XA CN200910037053A CN101480304B CN 101480304 B CN101480304 B CN 101480304B CN 200910037053X A CN200910037053X A CN 200910037053XA CN 200910037053 A CN200910037053 A CN 200910037053A CN 101480304 B CN101480304 B CN 101480304B
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- support unit
- support
- folding type
- connecting rod
- bed frame
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/12—Folding bedsteads
- A47C19/14—Folding bedsteads of the lazy-tongs type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C19/00—Bedsteads
- A47C19/12—Folding bedsteads
- A47C19/126—Folding bedsteads foldable side to side and head to foot, e.g. umbrella type
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- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The invention discloses a folding bed frame which is positioned on a supporting surface and is used for supporting a bed body. The folding bed frame comprises a plurality of supporting units that are juxtaposedly arranged along the extending direction, and extending units which are connected between every two adjacent supporting units and can movably change the relative distance between every twoadjacent supporting units along the extending direction, wherein the supporting units comprise a plurality of supporting frames which are connected juxtaposedly, each supporting frame comprises two vertical rods, an upper cross rod connected with the top ends of the two vertical rods, and a lower cross rod connected between the two vertical rods; each extending unit comprises an upper cross rod pivoted on the supporting frame outside the first supporting unit, a first connecting bar which is arranged between the lower cross rods of the supporting frames outside the second supporting unit adjacent to the first supporting unit, a lower cross rod pivoted on the supporting frame outside the fist supporting unit, and a second connecting bar which is arranged between the upper cross rods of thesupporting frame outside the second supporting unit. In addition, the invention also discloses an inflating bed body with the folding bed frame. The invention has the advantages of simple structure, stable integral structure, and the like.
Description
Technical field
The present invention relates to a kind of folding type bed frame and have the air mattress of this folding type bed frame.
Background technology
The folding type bed frame of prior art, as the patent No. 02107950.1, it discloses a kind of flexible bedstead, it comprises that several are along the parallel support unit arranged side by side of a flexible direction and along the contraction unit of relative distance between the flexible movable change support unit of direction, this support unit includes the cross bar that two up-and-down rods and connect this up-and-down rod, this telescopic unit includes the expansion bracket of the corresponding up-and-down rod of two these adjacent support units of connection, this expansion bracket has four connecting rods that articulate mutually, shape is as the X-shaped of two parallel connections, this connecting rod forms a junction near the end of a wherein up-and-down rod of adjacent supports unit, and forms another connecting portion near the other end of another corresponding up-and-down rod of adjacent supports unit.
In the prior art, change the relative distance of two connecting portions by the variation of four connecting rod angles that mutually articulate of expansion bracket, thereby make adjacent two support units change relative position, thereby realize the contraction of bedstead along flexible direction.
Yet the contraction structure that this kind shrinks bedstead is made of four connecting rods that articulate mutually, its structure too complex, and employed parts are too much, improved cost of manufacture and production efficiency greatly.
In addition, this kind shrinks the contraction structure of bedstead and only notices the fixedly connected of flexible direction, and for not having the good mode of fixedlying connected with the vertical direction of flexible direction, causes the loosening of bedstead easily.Though also this defective is improved in the patent documentation, as connect a connecting rod between expansion bracket, this kind mode also can only keep the spacing between the expansion bracket stable, and does not have any improvement for the stability of the telescopic unit of integral body.
Summary of the invention
At the shortcoming of prior art, the purpose of this invention is to provide the stable folding type bed frame of a kind of designs simplification and overall structure.
In addition, the present invention also provides a kind of air mattress with this folding type bed frame.
For achieving the above object, technical scheme of the present invention is: a kind of folding type bed frame, be positioned on the supporting surface to be used to support a body, it comprises a plurality ofly can make the support unit that is arranged side by side of stretching motion and be connected between the adjacent supports unit and can the movable contraction unit that changes relative distance between the support unit along flexible direction, wherein
This support unit comprises a plurality of bracing frames that connect side by side, and each bracing frame comprises that two place up-and-down rod on the supporting surface, connect the cross tube on two up-and-down rod tops and connect sheer pole between two up-and-down rods,
Shrink the second connecting rod between the cross tube of first connecting rod, the sheer pole that is articulated in the first support unit lateral branch support and the second support unit lateral branch support between the sheer pole that the unit comprises the cross tube that is articulated in one first support unit lateral branch support and the second support unit lateral branch support adjacent with first support unit.
This first connecting rod and second connecting rod articulate mutually, and first connecting rod one end articulates by the cross tube of first Connection Block and the first support unit lateral branch support, the first connecting rod other end articulates with the sheer pole of the relative bracing frame of second support unit by second Connection Block, second connecting rod one end articulates by the sheer pole of second Connection Block and the first support unit lateral branch support, and the second connecting rod other end articulates with the cross tube of the relative bracing frame of second support unit by first Connection Block.
The longitudinal section of this sheer pole all is a square structure, the rounded shape of through hole of the sheathed sheer pole of second Connection Block.
This support unit comprises at least two support bars that are articulated between first, second adjacent two bracing frame mutually and can change mutual angle.
The two ends of the direction that this bracing frame is vertical with flexible direction are equipped with two support bars that articulate mutually.
The top of this first bracing frame up-and-down rod articulates one first support bar with the bottom of the corresponding up-and-down rod of second bracing frame, and the top of the corresponding up-and-down rod of the bottom of this first bracing frame up-and-down rod and second bracing frame articulates one second support bar, and two support bars articulate mutually.
The support bar of this bracing frame two ends correspondence and sheer pole are one-body molded to be H type engaging lever.
This up-and-down rod is an expansion link.
This up-and-down rod top, cross tube end and supporting bar top articulate together by a mount pad, and this up-and-down rod bottom, sheer pole end and support bar bottom articulate together by a sliding bottom.
This sliding bottom comprises the fixture that entangles support bar and sheer pole and is located at the arc seat of fixture bottom that the up-and-down rod bottom is sheathed on auxiliary rod and the angle that also can do telescopic movable in the up-and-down rod by one and is connected with the arc seat.
Also be provided with the supplemental support unit of laterally or vertically doing telescopic movable or rotation on this support unit along this support unit.
This supplemental support unit includes connecting rod and pole, and wherein, an end of this connecting rod and mount pad pivot joint, the other end and pole articulate, and perhaps an end and of this connecting rod is fixed in positioning seat pivot joint, the other end and the pole pivot joint of two support bar articulated sections.
In addition, the present invention also provides a kind of air mattress with folding type bed frame, comprise a folding type bed frame and at least one inflatable bed body, this bedstead is positioned on the supporting surface and supports this body, this bedstead comprise a plurality of along a flexible direction side by side support unit and be connected between the support unit and along the contraction unit of relative distance between the flexible movable change support unit of direction, wherein
This support unit comprises a plurality of bracing frames that connect side by side, and each bracing frame comprises two up-and-down rods, connect the cross tube on two up-and-down rod tops and connect sheer pole between two up-and-down rods,
Shrink the second connecting rod between the cross tube of first connecting rod, the sheer pole that is articulated in the first support unit lateral branch support and the second support unit lateral branch support between the sheer pole that the unit comprises the cross tube that is articulated in one first support unit lateral branch support and the second support unit lateral branch support adjacent with first support unit, bedstead is connected by the movable connection structure realization that can dismantle with a body.
By realizing cooperating of bedsteads and a body in that raised line and the corresponding groove of being located on the body and matching with raised line 30 are set on the support unit bearing surface.
By being located at the Button Block on the support unit bearing surface and corresponding being located on the body and the button that matches with Button Block is realized cooperating of bedstead and a body.Also be provided with slip latch fitting on this Button Block with the button pinning of precession Button Block.
Bedstead and bed body are by bonding strip or tie up rope structure and realize being connected cooperation.
The present invention compared with prior art has following advantage and beneficial effect:
The present invention is by being articulated in the formed contraction cellular construction of two connecting rods of the upper and lower cross bar in adjacent supports unit respectively, compared with prior art, only need the just contraction movement of the fine realization support unit of energy of two connecting rods, structure is comparatively simple, part is required less, can effectively reduce cost of manufacture and enhances productivity.
In addition, shrinking the unit is connected with the upper and lower cross bar of adjacent supports unit respectively, the face that makes two connecting rods and upper and lower cross bar have four end points is fixed, have only the line of two end points fixedly to compare with prior art, the present invention's stability of unit on the direction vertical that can effectively remain retracted with flexible direction, thus the integrally-built stability of bedstead improved.
Description of drawings
Fig. 1 is the structural representation of folding type bed frame of the present invention;
Structural representation when Fig. 2 folds for Fig. 1 bedstead;
Fig. 3 is the enlarged diagram of b part-structure among Fig. 1;
Fig. 4 is the enlarged diagram of c part-structure among Fig. 1;
The support bar that Fig. 5 is formed in one and the structural representation of sheer pole;
Fig. 6 is the enlarged diagram of a part-structure among Fig. 1;
Fig. 7 is the enlarged diagram of d part-structure among Fig. 1;
The active state figure of sliding bottom when Fig. 8 a is the bedstead expansion, the active state figure of sliding bottom when Fig. 8 b is the bedstead contraction;
Fig. 9 is the structural representation that has the folding type bed frame of supplemental support unit;
Figure 10 is the enlarged diagram of e part-structure among Fig. 9;
Figure 11 is the enlarged diagram of f part-structure among Fig. 9;
Figure 12 is the another kind of structural representation that has the folding type bed frame of supplemental support unit;
Structural representation when Figure 13 folds for Figure 12 bedstead;
Figure 14 is the enlarged diagram of g part-structure among Fig. 9;
Figure 15 is the enlarged diagram of h part-structure among Fig. 9;
Figure 16 to Figure 21 has the scheme of installation of the air mattress of folding type bed frame for the present invention;
Figure 22 to Figure 28 has the scheme of installation of the another kind of structure of air mattress of folding type bed frame for the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in detail.
As shown in Figure 1, a kind of folding type bed frame, be positioned on the supporting surface to be used to support a body, it comprise a plurality of along a flexible direction side by side support unit 1 and be connected between the support unit 1 and along the contraction unit 2 of relative distance between the flexible movable change support unit 1 of direction, each support unit 1 comprises a cross tube and a sheer pole at least, shrinks unit 2 and comprises the first connecting rod 3 that is articulated between one first support unit cross tube and the second support unit sheer pole adjacent with first support unit, be articulated in the second connecting rod 4 between the first support unit sheer pole and the second support unit cross tube.As shown in Figure 2, by changing the relative distance of the movable change support unit 1 of angle between first, second connecting rod 3,4, thereby realize the telescopic movable of bedstead.
This first, second support unit comprises a plurality of bracing frames 5 that connect side by side, each bracing frame 5 comprises the cross tube 7 on two up-and-down rods 6, connection two up-and-down rods 6 tops and connects the sheer pole 8 of two up-and-down rods, 6 bottoms, the cross tube of the first support unit lateral branch support articulates by first connecting rod 3 with the sheer pole of the relative bracing frame of second support unit, and the sheer pole of the first support unit lateral branch support articulates by second connecting rod 4 with the cross tube of the relative bracing frame of second support unit.In the present embodiment, this up-and-down rod 6 is an expansion link, and the rounded shape of its cross section.
This first connecting rod 3 articulates mutually with second connecting rod 4, and first connecting rod 3 one ends articulate by the cross tube 7 of first Connection Block 9 and the first support unit lateral branch support, first connecting rod 3 other ends articulate with the sheer pole 8 of the relative bracing frame of second support unit by second Connection Block 10, second connecting rod 4 one ends articulate by the sheer pole of second Connection Block 10 and the first support unit lateral branch support, second connecting rod 4 other ends articulate with the cross tube of the relative bracing frame of second support unit by first Connection Block 9, as shown in Figures 3 and 4.In the present embodiment, first, second connecting rod 3,4 all is pivoted to the point midway of upper and lower cross bar 7,8.First, second connecting rod 3,4 can articulate together by rivet 11.
Above-mentioned cross tube 7 all is a square structure with the longitudinal section of sheer pole 8, and the through hole of first Connection Block, 9 sheathed cross tubes 7 is square-shaped, the rounded shape of through hole of second Connection Block, 10 sheathed sheer poles 8.When bedstead expansion or gathering, angle changes between first Connection Block 9 and first connecting rod 3 or the second connecting rod 4, and wherein, first Connection Block 9 keeps motionless, and first connecting rod 3 rotates relative to first Connection Block 9; And second Connection Block 10 rotates simultaneously with first connecting rod 3 or second connecting rod 4.The benefit of this kind syndeton has better active force when being bedstead expansion or contraction, avoids skidding between connecting rod and the cross bar.This first, second Connection Block 9,10 is the T word shape.
In the above-mentioned support unit, adjacent two bracing frames are distinguished for convenient, are referred to as first, second bracing frame, pass through at least two support bars 15 that articulate and can change mutual angle mutually between them and connect.In the present embodiment, the two ends of the direction that bracing frame is vertical with flexible direction are equipped with two support bars that articulate and can change mutual angle mutually.When bedstead launched, the angle between these two support bars increased; When bedstead shrank, the angle between these two support bars reduced.
The top of this first bracing frame up-and-down rod articulates a support bar with the bottom of the corresponding up-and-down rod of second bracing frame, and the top of the corresponding up-and-down rod of the bottom of this first bracing frame up-and-down rod and second bracing frame articulates another support bar, and two support bars articulate mutually.In the present embodiment, the cross section of two support bars all is a square structure, and two support bars can articulate together by rivet 12.
As shown in Figure 5, among the present invention, in order to improve efficiency of assembling, can with the support bar 15 of bracing frame two ends correspondence one-body molded with sheer pole be H type engaging lever, again will two H type engaging levers intersect and just can form this support unit with up-and-down rod 6 pivot joints again after articulating.
As shown in Figure 6, this up-and-down rod top, cross tube end and supporting bar top articulate together by a mount pad 13.
As shown in Figure 7, this up-and-down rod bottom, sheer pole end and support bar bottom articulate together by a sliding bottom 14.Further, sliding bottom 14 comprises the fixture 35 that entangles support bar and sheer pole and is located at the arc seat 18 of fixture 35 bottoms that the up-and-down rod bottom is sheathed on auxiliary rod 16 and the angle 17 that also can do telescopic movable in the up-and-down rod 6 by one and is connected with arc seat 18.Shown in Fig. 8 a and 8b, when bedstead is flexible, angle between up-and-down rod 6 and support bar 15, the sheer pole 8 all changes, and owing to arc seat 18 along with flexible direction is swung, drive auxiliary rod 16 and do telescopic movable, thereby the distance between up-and-down rod 6 and the angle 17 is changed, and sheer pole 8 is also along with arc seat 18 is done swing simultaneously.
As Fig. 9, Figure 10 and shown in Figure 11, this bedstead also comprises the supplemental support unit 19 of being located on the support unit respectively and changing relative angle with this support unit versatilely.This supplemental support unit can effectively increase the cross-brace width of bedstead.
This supplemental support unit 19 includes a connecting rod 20 and a pole 21, wherein, one end of this connecting rod 20 articulates by movable transverse pole socket 22 and mount pad 13 pivot joints, the other end and pole 21, and this movable transverse pole socket 22 includes the back-moving spring 23 that is used for supplemental support unit 19 is returned to rounding state.This pole 21 also articulates by a PVC bar 27 and the connecting rod sliding seat of being located on the sliding bottom 14 26.This connecting rod 20 articulates by Connection Block 28 with pole 21.This mount pad 13 is a Triangulum.
Certainly, more than the foregoing description of syndeton of this supplemental support unit 19 and support unit 1, as Figure 12, Figure 13, Figure 14 and shown in Figure 15, an end of this connecting rod 20 also can articulate with a positioning seat 25 that is fixed in two support bars, 15 articulated sections, the other end articulates by pole 21, PVC bar 27 and second pole and positioning seat 25 successively.For the start point of restraint crossbar mount 22, also be provided with a upset limit base 24 between movable transverse pole socket 22 and the positioning seat 25.
In addition, the present invention also provides a kind of air mattress with folding type bed frame, comprise a folding type bed frame and at least one inflatable bed body 34, the support unit 1 of bedstead and supplemental support unit 19 and bed body 34, bedstead is realized being connected by the movable connection structure that can dismantle with bed body 34.
Shown in Figure 16,17,18a, 18b, 19a, 19b and 20, in the support unit 1 in mount pad 13 and the supplemental support unit 19 end face of Connection Block 28 as the bearing surface of butt bed body 34, in the present embodiment, by realizing cooperating of bedsteads and a body in that raised line 29 and the corresponding groove of being located on the body 34 and matching with raised line 29 30 are set on the bearing surface.During installation, earlier with the raised line 29 on the 30 aligning bedsteads of the groove on the bed body, again they are carried out snapping, and then the bed body inflated, when expanding, because of the bearing surface and the link position of bed body bottom surface are fixed when the inflation of bed body, so can naturally bedstead be strutted the formation deployed condition, then no longer have the active force that struts bedstead after gas is discharged in the bed body, this moment, the bed body can fold with bedstead is folding, shown in Figure 21 a and 21b.
The buckle structure of bedstead and bed body also can be by being located at cooperating of Button Block 31 and slip latch fitting 32 on the bearing surface and the corresponding button of being located on the body and matching with Button Block 31 33 realization bedsteads and a body except aforesaid way.Shown in Figure 22,23,24a, 24b, 25a, 25b, 26,27 and 28, when this buckle structure carries out snapping,, behind the button 33 precession Button Blocks 31, by slip latch fitting 32 button 33 is locked in the Button Block 31 more earlier with in the button 33 precession Button Blocks 31.
Bedstead and bed body are by bonding strip or tie up rope structure and realize being connected cooperation.
Claims (12)
1. folding type bed frame, be positioned on the supporting surface to be used to support a body, it comprises a plurality ofly can make the support unit that is arranged side by side (1) of stretching motion and be connected between adjacent two support units (1) and can it is characterized in that along flexible direction activity to change the contraction unit (2) of relative distance between the support unit (1):
This support unit (1) comprises a plurality of bracing frames (5) that connect side by side, and each bracing frame (5) comprises that two place up-and-down rod (6) on the supporting surface, are connected the cross tube (7) on two up-and-down rods (6) top and are connected sheer pole (8) between two up-and-down rods (6);
Shrink the second connecting rod (4) between the cross tube (7) of first connecting rod (3), the sheer pole (8) that is articulated in the first support unit lateral branch support and the second support unit lateral branch support between the sheer pole (8) that unit (2) comprises the cross tube (7) that is articulated in one first support unit lateral branch support and the second support unit lateral branch support adjacent with first support unit;
This first connecting rod (3) articulates mutually with second connecting rod (4), and first connecting rod (3) one ends articulate by the cross tube (7) of first Connection Block (9) with the first support unit lateral branch support, first connecting rod (3) other end articulates with the sheer pole (8) of the relative bracing frame of second support unit by second Connection Block (10), second connecting rod (4) one ends articulate by the sheer pole (8) of second Connection Block (10) with the first support unit lateral branch support, and second connecting rod (4) other end articulates with the cross tube (7) of the relative bracing frame of second support unit by first Connection Block (9);
This support unit (1) comprises at least two support bars (15) that are articulated between first, second adjacent two bracing frame (5) mutually and can change mutual angle;
The two ends of the direction that this bracing frame (5) is vertical with flexible direction are equipped with two support bars (15) that articulate mutually;
This up-and-down rod top, cross tube end and supporting bar top articulate together by a mount pad (13), and this up-and-down rod bottom, sheer pole end and support bar bottom articulate together by a sliding bottom (14);
This sliding bottom (14) comprises the fixture (35) that entangles support bar (15) and sheer pole (8) and is located at the arc seat (18) of fixture (35) bottom that up-and-down rod (6) bottom is sheathed on auxiliary rod (16) and the angle (17) that also can do telescopic movable in the up-and-down rod (6) by one and is connected with arc seat (18).
2. folding type bed frame according to claim 1 is characterized in that: the cross section of this sheer pole (8) all is a rectangular configuration, the rounded shape of through hole of the sheathed sheer pole of second Connection Block (10) (8).
3. folding type bed frame according to claim 1, it is characterized in that: the top of this first bracing frame up-and-down rod articulates one first support bar with the bottom of the corresponding up-and-down rod of second bracing frame, the top of the corresponding up-and-down rod of the bottom of this first bracing frame up-and-down rod and second bracing frame articulates one second support bar, and two support bars articulate mutually.
4. folding type bed frame according to claim 3 is characterized in that: the support bar (15) of this bracing frame (5) two ends correspondence engages with sheer pole (8) to being the syndeton of H type.
5. folding type bed frame according to claim 4 is characterized in that: this up-and-down rod (6) is an expansion link.
6. folding type bed frame according to claim 1 is characterized in that: also be provided with the supplemental support unit (19) of laterally or vertically doing telescopic movable or rotation along this support unit (1) on this support unit (1).
7. folding type bed frame according to claim 6, it is characterized in that: this supplemental support unit (19) includes connecting rod (20) and pole (21), wherein, one end of this connecting rod (20) and mount pad (13) pivot joint, the other end and pole (21) articulate, and perhaps an end and of this connecting rod (20) is fixed in positioning seat (25) pivot joint, the other end and pole (21) pivot joint of two support bars (15) articulated section.
8. the air mattress with the described folding type bed frame of claim 1 comprises a folding type bed frame and at least one inflatable bed body (34), and bedstead is realized being connected by the movable connection structure that can dismantle with bed body (34).
9. the air mattress with folding type bed frame according to claim 8 is characterized in that: by being provided with on support unit (1) bearing surface that raised line (29) and correspondence are located at that a body (34) is gone up and the groove (30) that matches with raised line (29) is realized cooperating of bedstead and a body.
10. the air mattress with folding type bed frame according to claim 8 is characterized in that: by being located at the Button Block (31) on support unit (1) bearing surface and correspondence is located on the body and the button (33) that matches with Button Block (31) is realized cooperating of bedstead and a body.
11. the air mattress with folding type bed frame according to claim 10 is characterized in that: also be provided with slip latch fitting (32) on this Button Block (31) with button (33) pinning of precession Button Block (31).
12. the air mattress with folding type bed frame according to claim 8 is characterized in that: bedstead and bed body (34) are by bonding strip or tie up rope structure and realize being connected cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910037053XA CN101480304B (en) | 2009-02-03 | 2009-02-03 | Folding type bedstead and air bed with the folding type bedstead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910037053XA CN101480304B (en) | 2009-02-03 | 2009-02-03 | Folding type bedstead and air bed with the folding type bedstead |
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| Publication Number | Publication Date |
|---|---|
| CN101480304A CN101480304A (en) | 2009-07-15 |
| CN101480304B true CN101480304B (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910037053XA Active CN101480304B (en) | 2009-02-03 | 2009-02-03 | Folding type bedstead and air bed with the folding type bedstead |
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| CN (1) | CN101480304B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109463932A (en) * | 2019-01-08 | 2019-03-15 | 广州旅行家户外用品有限公司 | A kind of air-filled foldable bed |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119621Y (en) * | 2007-05-29 | 2008-09-24 | 厦门进雄企业有限公司 | Combined folding bed |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201119621Y (en) * | 2007-05-29 | 2008-09-24 | 厦门进雄企业有限公司 | Combined folding bed |
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| CN101480304A (en) | 2009-07-15 |
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