CN1500426A - Foldable chair support - Google Patents
Foldable chair support Download PDFInfo
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- CN1500426A CN1500426A CNA021519188A CN02151918A CN1500426A CN 1500426 A CN1500426 A CN 1500426A CN A021519188 A CNA021519188 A CN A021519188A CN 02151918 A CN02151918 A CN 02151918A CN 1500426 A CN1500426 A CN 1500426A
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- bar
- hinge
- support bar
- seat
- support
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- 210000001364 upper extremity Anatomy 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000037396 body weight Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The support framework for foldable chair includes front legs and back legs symmetrically set on two sides, chair top supporting rods, back rod and transversely support parts set between the side support frame comprising the front legs, the back legs, the chair top supporting rods and the back rod. It features the upper part of each back leg above the hinge to the chair top supporting rod being telescopic rod comprising inner tube and outer sleeve, and the hinging between the upper part of the telescopic rod and the upper part of the back rod or front leg. The present invention has stable opened state, no damage on body and long service life.
Description
Technical field
The invention belongs to a kind of folding seat bracing frame with backrest.
Background technology
The primary structure of existing backrest type folding seat bracing frame is (referring to Fig. 1): be provided with oblique two foreleg bars (1) and two back leg bars (2), foreleg bar top extends to form back support bar to oblique back upper place, seat support bar (3) middle part is connected with foreleg bar hinge, the rear end is connected with back leg bar hinge, brace (4) two ends are connected with back leg bar hinge with the foreleg bar of seat support bar top respectively, when bracing frame struts, back leg bar upper end withstands on foreleg bar middle part, when folding, the back leg bar rotates to the foreleg bar along the hinge point of hinge plate and seat support bar and foreleg bar and draws close.The weak point of this folding seat bracing frame is: strut when using, if in the seat rear portion application of force, be easy to make the seat front portion to be upturned, whole bracing frame loses center of gravity and falls, and the brace position is easy to crush human body.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of energy stable is in softened state securely, is difficult for crushing human body, the folding seat bracing frame of band backrest safe in utilization.
The technical scheme that addresses the above problem is (referring to implementing illustration): bilateral symmetry of the present invention is provided with foreleg bar (1), back leg bar (2), seat support bar (3), back support bar (5), before, the back leg bar is connected with seat support bar (3) hinge respectively, respectively by preceding, the back leg bar, the seat support bar, be provided with cross-support members (7 between the left and right sides bracing frame that the back support bar hinge is connected as a single entity, 6), it is characterized in that: by interior pipe (2b) be slidingly matched and be enclosed within the scalable body of rod that the outer tube (2a) outside it is formed, scalable body of rod upper end and back support bar (5) or foreleg bar (1) are connected with extension hinge that seat support bar (3) hinge makes progress from it described back leg bar (2) from extension that itself and seat support bar (3) hinge make progress.
When the present invention folded, seat support bar (3) is anterior to be turned up to the back upper place, the scalable body of rod (2b) on back leg bar (2) top, (2a) elongation of sliding, and forward and backward leg bar is drawn close mutually.
Softened state of the present invention is stable, all be difficult for taking place to turn over the situation that loses center of gravity on the seat in the anterior application of force of seat or the rear portion application of force, be difficult for crushing human body, safe in utilization, and be arranged on seat support bar and the above position of back leg bar hinge point for telescopic rod body portion (2a), (2b) that bracing frame can be folded be provided with, strut not direct grantee's body weight when using, thereby can prolong the service life of bracing frame.
Description of drawings
The folding chair structure schematic diagram of band backrest in Fig. 1, the prior art
Fig. 2, the embodiment of the invention 1 structural representation
Fig. 3, scalable body of rod 2a shown in Figure 2,2b structure for amplifying schematic diagram
Fig. 4, embodiment 1 softened state structural representation
Fig. 5, scalable body of rod 2a shown in Figure 4,2b structure for amplifying schematic diagram
Structural representation when Fig. 6, embodiment 1 load onto soft seat
Fig. 7, embodiment 1 folded state structural representation
Fig. 8, embodiment 2 structural representations
Fig. 9, embodiment 2 softened state structural representations
Figure 10, embodiment 3 structural representations
Figure 11, embodiment 3 softened state structural representations
Figure 12, embodiment 4 structural representations
The A of Figure 13, chute 11a shown in Figure 12 is to structural representation
Figure 14, embodiment 4 softened state structural representations
Figure 15, embodiment 5 structural representations
Figure 16, embodiment 5 softened state structural representations
Pipe 3-seat support bar 4-brace in the 1-foreleg bar 2-back leg bar 2a-outer tube 2b-
5-back support bar 6,7-cross-support members 8-locking device 8a-spring contact 8b-locking hole
The vertical chute 11b-of 9-cross-support members 10-hard seat 11-handrail 11a-location recess
The 12-hinge head 13-parts that are slidingly connected
Specific embodiments
Embodiment 1 (Fig. 2～Fig. 7)
The support frame structure of this routine left and right sides face is: foreleg bar 1 is connected with seat support bar 3 hinges respectively with back leg bar 2, oblique foreleg bar 1 extends to the back upper place from the hinge of itself and seat support bar 3, form back support bar 5, scalable body of rod 2a, the 2b upper end on back leg bar 2 tops is connected with back support bar 5 hinges.
See Fig. 3, be provided with locking device 8 between the interior pipe 2b of this routine scalable body of rod and the outer tube 2a, its structure is: be provided with locking hole 8a on outer tube 2a, interior pipe 2b is provided with spring contact 8b, when bracing frame struts, when outer tube and interior pipe were reduced to closed position, spring contact sprang in the locking hole, and outer tube and interior pipe are locked mutually, make the bracing frame that struts more stable, when needing to fold, press elastic button it is deviate from locking hole, outer tube 2a gets final product sliding extension.
Be provided with cross-support members 7,6 between the supported on both sides frame, wherein cross-support members 7 is made up of the X-shaped support that two support bar middle hinge are connected to form, X-shaped support both upper ends thereof is connected with the seat support bar 3 anterior hinges of both sides respectively, the two ends, bottom are connected with foreleg bar 1 underneath hinges of both sides respectively, cross-support members 6 is made up of the X-shaped support that two support bar middle hinge are connected to form, X-shaped support both upper ends thereof is connected with both sides back support bar 5 upper hinges respectively, and the two ends, bottom are connected with back leg bar 2 hinges of seat support bar 3 belows, both sides respectively.
This example is turned up to the back upper place in seat support bar 3 front portions, and flexible body of rod 2a, 2b elongate, and when forward and backward leg bar was drawn close, the bracing frame of the left and right sides was also drawn close to the centre is folding under the effect of X-shaped support.
Embodiment 2 (Fig. 8, Fig. 9)
The support frame structure of this routine left and right sides face is identical with embodiment 1, difference is that the cross-support members that is provided with between the bracing frame of the left and right sides is non-accordion structure: between the both sides seat support bar 3 hard seat 10 is housed, hard seat 8 is a seat, also be cross-support members, be fixed with cross bar between both sides back support bar and the forward and backward leg bar respectively and form cross-support members 6,7,9.
As different from Example 1: when this example folds, the seat support bar can only be turned up to the back upper place, forward and backward leg bar is drawn close, the bracing frame of the left and right sides can not be drawn close to the centre
Embodiment 3 (Figure 10,11)
The support frame structure of this routine left and right sides face is: seat support bar 3 is connected with forward and backward leg bar hinge respectively, back support bar 5 lower ends are connected with the position hinge with between the leg bar hinge point of front and back on the seat support bar 3, the scalable body of rod upper end on back leg bar 2 tops is connected with back support bar 5 and bar 11 rear end hinges, and foreleg bar 1 is connected with bar 11 anterior hinges from the upper end that itself and seat support bar 3 hinges extend upward part.
Be provided with cross-support members 7,6 between the supported on both sides frame, its structure is identical with embodiment 1.
Embodiment 4 (Figure 12,13,14)
The support frame structure of this routine left and right sides face is: foreleg bar 1 is connected with seat support bar 3 hinges respectively with back leg bar 2, foreleg bar 1 extends upward part from itself and seat support bar 3 hinges upper end is connected with hinge head 12 hinges that are fixed on scalable body of rod upper end, back leg bar 2 tops, back support bar 5 bottoms are connected with seat support bar 3 rear end hinges, bar 11 rear ends are connected with back support bar 5 hinges, hinge head 12 is connected with bar 11 longitudinal sliding motions, see Figure 13, its sliding connection structure is: the parts 13 that are slidingly connected that are connected with hinge head 12 upper hinges embed in the vertical chute 11a that is provided with on the handrail 11 movingly, and the chute sidepiece is provided with the location recess 11b of transverse recess.Being slidingly connected parts 13 can longitudinal sliding motion in chute 11a, it is snapped in the horizontal location recess 11b and can locate, snap in different locating slots, back support bar 5 can have the different elevations angle, the user can adjust according to required backrest angle, when strengthening the elevation angle of back support bar 5, this example also can be made the chaise longue bracing frame and use.
Be provided with cross-support members 7,6 between the bracing frame of the left and right sides, wherein cross-support members 7 structures are with embodiment 1, cross-support members 6 is made up of the X-shaped support that two support bar middle hinge are connected to form, the X-shaped support is connected with both sides back support bar 5 hinges respectively at two ends up and down, and the position of every side back support bar 5 between upper and lower hinge point is provided with by interior pipe 5b and is slidingly matched and be enclosed within the scalable body of rod that the outer tube 5a outside it forms.
When present embodiment folds, turn up to the back upper place seat support bar 3 front portions, scalable body of rod 2a, the 2b on back leg bar 2 tops elongates, forward and backward leg bar is drawn close, simultaneously, under the effect of cross-support members X-shaped support, the bracing frame of the left and right sides is also drawn close to the center, in the process of drawing close, scalable body of rod 5a, the 5b on the back support bar 5 elongates.
Embodiment 5 (Figure 15, Figure 16)
The support frame structure of this routine left and right sides face is identical with embodiment 4, difference is between both sides seat support bar 3 hard seat 10 to be housed, the hard seat is to make seat to use, also be the cross-support members of left and right sides bracing frame, cross-support members 6 is for being fixed on the hardboard between two back support bar 5.。
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction; every foundation technical spirit of the present utility model all still belongs to the protection domain of technical solutions of the utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (10)
1, the folding seat bracing frame, bilateral symmetry is provided with foreleg bar (1), back leg bar (2), seat support bar (3), back support bar (5), before, the back leg bar is connected with seat support bar (3) hinge respectively, respectively by preceding, the back leg bar, the seat support bar, be provided with cross-support members (7 between the left and right sides bracing frame that the back support bar hinge is connected as a single entity, 6,9), it is characterized in that: by interior pipe (2b) be slidingly matched and be enclosed within the scalable body of rod that the outer tube (2a) outside it is formed, scalable body of rod upper end and back support bar (5) or foreleg bar (1) are connected with extension hinge that seat support bar (3) hinge makes progress from it described back leg bar (2) from extension that itself and seat support bar (3) hinge make progress.
2, folding seat bracing frame according to claim 1, it is characterized in that: the support frame structure of described left and right sides face is: foreleg bar (1) is connected with seat support bar (3) hinge respectively with back leg bar (2), oblique foreleg bar (1) extends to the back upper place from the hinge of itself and seat support bar (3), form back support bar (5), the scalable body of rod (2a, the 2b) upper end on back leg bar (2) top is connected with back support bar (5) hinge.
3, folding seat bracing frame according to claim 1, it is characterized in that: the support frame structure of described left and right sides face is: seat support bar (3) is connected with forward and backward leg bar hinge respectively, back support bar (5) lower end is connected with the position hinge with between the leg bar hinge point of front and back on the seat support bar (3), the scalable body of rod upper end on back leg bar (2) top is connected with back support bar (5) and bar (11) rear end hinge, and foreleg bar (1) is connected with the anterior hinge of bar (11) from the upper end that itself and seat support bar (3) hinge extend upward part.
4, folding seat bracing frame according to claim 1, it is characterized in that: the support frame structure of described left and right sides face is: foreleg bar (1) is connected with seat support bar (3) hinge respectively with back leg bar (2), foreleg bar (1) extends upward part from itself and seat support bar (3) hinge upper end is connected with hinge head (12) hinge that is fixed on scalable body of rod upper end, back leg bar (2) top, back support bar (5) bottom is connected with seat support bar (3) rear end hinge, bar (11) rear end is connected with back support bar (5) hinge, hinge head (12) is connected with bar (11) longitudinal sliding motion.
5, folding seat bracing frame according to claim 4, it is characterized in that: the hinge head (12) of described scalable body of rod upper end with the longitudinal sliding motion syndeton of bar (11) is: the parts that are slidingly connected (13) that are connected with hinge head (12) upper hinge embed handrail (11) movingly and go up vertical chute (11a) lining that is provided with, and the chute sidepiece is provided with the location recess (11b) of transverse recess.
6, according to claim 1,2,3,4 or 5 described folding seat bracing frames, it is characterized in that: the cross-support members structure that is provided with between the described supported on both sides frame is: cross-support members (7) is made up of the X-shaped support that two support bar middle hinge are connected to form, X-shaped support both upper ends thereof is connected with the anterior hinge of seat support bar (3) of both sides respectively, the two ends, bottom are connected with foreleg bar (1) underneath hinges of both sides respectively, cross-support members (6) is made up of the X-shaped support that two support bar middle hinge are connected to form, X-shaped support both upper ends thereof is connected with both sides back support bar (5) upper hinge respectively, and the two ends, bottom are connected with back leg bar (2) hinge of both sides seat support bars (3) or seat support bar below respectively.
7, according to claim 1,2,3,4 or 5 described folding seat bracing frames, it is characterized in that: between the described both sides seat support bar 3 hard seat (10) is housed.
8, according to claim 1,2,3,4 or 5 described folding seat bracing frames, it is characterized in that: be provided with locking device (8) between the interior pipe (2b) of the described scalable body of rod and the outer tube (2a).
9, folding seat bracing frame according to claim 6 is characterized in that: be provided with locking device (8) between the interior pipe (2b) of the described scalable body of rod and the outer tube (2a).
10, folding seat bracing frame according to claim 7 is characterized in that: be provided with locking device (8) between the interior pipe (2b) of the described scalable body of rod and the outer tube (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519188A CN1500426A (en) | 2002-11-12 | 2002-11-12 | Foldable chair support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021519188A CN1500426A (en) | 2002-11-12 | 2002-11-12 | Foldable chair support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1500426A true CN1500426A (en) | 2004-06-02 |
Family
ID=34234527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021519188A Pending CN1500426A (en) | 2002-11-12 | 2002-11-12 | Foldable chair support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1500426A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133642A1 (en) * | 2005-06-16 | 2006-12-21 | Larry Tang | A support frame for backrest foldable chair |
| CN101773341B (en) * | 2009-01-14 | 2012-05-09 | 陈德隆 | Improved folding chair capable of transverse contracting |
| WO2025201256A1 (en) * | 2024-03-27 | 2025-10-02 | 厦门新技术集成有限公司 | Folding chair safe to use |
-
2002
- 2002-11-12 CN CNA021519188A patent/CN1500426A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006133642A1 (en) * | 2005-06-16 | 2006-12-21 | Larry Tang | A support frame for backrest foldable chair |
| CN101773341B (en) * | 2009-01-14 | 2012-05-09 | 陈德隆 | Improved folding chair capable of transverse contracting |
| WO2025201256A1 (en) * | 2024-03-27 | 2025-10-02 | 厦门新技术集成有限公司 | Folding chair safe to use |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |