CN2807923Y - Support rack of folding chair - Google Patents
Support rack of folding chair Download PDFInfo
- Publication number
- CN2807923Y CN2807923Y CNU2005200598863U CN200520059886U CN2807923Y CN 2807923 Y CN2807923 Y CN 2807923Y CN U2005200598863 U CNU2005200598863 U CN U2005200598863U CN 200520059886 U CN200520059886 U CN 200520059886U CN 2807923 Y CN2807923 Y CN 2807923Y
- Authority
- CN
- China
- Prior art keywords
- bar
- support bar
- seat
- support
- hinge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C4/00—Foldable, collapsible or dismountable chairs
- A47C4/28—Folding chairs with flexible coverings for the seat or back elements
- A47C4/286—Folding chairs with flexible coverings for the seat or back elements foldable side to side and front to back, e.g. umbrella type
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
A support rack of a folding chair is equipped with a foreleg bar (1), a rear leg bar (2), a chair supporting bar (3) and a back support bar (7). The support rack of a folding chair is characterized in that: the chair supporting bar (3) is hinged with the foreleg bar (1)and the rear leg bar (2); the lower end of the back support bar (7) is hinged with the chair supporting bar (3); the upper end of the rear leg bar (2) is hinged with a sliding bush (5)on the back support bar (7); the back end of a grab rail (6) is hinged with the back support bar (7); the middle part is hinged with the upper end of the foreleg bar (1); a transverse strut component is equipped between the support racks at both sides. The utility model is provided with stable strutting condition and safe use. The support rack of a folding chair doesn't lose the center of gravity easily to tumble.
Description
Affiliated technical field
The utility model belongs to a kind of bracing frame of backrest type folding seat.
Background technology
The primary structure of the bracing frame of existing backrest type folding seat 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 backrest support rods 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 strutted, back leg bar upper end withstood on foreleg bar middle part.The weak point of the bracing frame of this folding seat 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 problems to be solved in the utility model provides that a kind of energy stable is in softened state securely, is difficult for crushing human body, the bracing frame of backrest type folding seat safe in utilization.
The technical scheme that addresses the above problem is (referring to implementing illustration): the utility model is provided with two foreleg bars (1), two back leg bars (2), two seat support bars (3), two back support bar (7), it is characterized in that: the middle part of described seat support bar (3) is connected with the middle part hinge of foreleg bar (1) with back leg bar (2) respectively with the rear end, position hinge between the same back leg bar hinge point of back support bar (7) lower end and seat support bar (3) is connected, back leg bar (2) upper end is connected with sliding sleeve (5) hinge on being enclosed within back support bar (7), bar (6) rear end is connected with the position hinge that back support bar (7) is positioned at sliding sleeve (5) top, the middle part is connected with foreleg bar (1) upper end hinge, both sides be connected as a single entity respectively before, the back leg bar, the seat support bar, be provided with cross-support members (9 between the back support bar, 8,10,11).
When this bracing frame folded, to lower slider, seat support bar (3) is anterior to be turned up to the back upper place sliding sleeve (5) along back support bar (7), and when strutting, sliding sleeve (5) upwards slides to hinge point place with bar along back support bar, and bracing frame is in stable state.
The utility model softened state is stable, all can not take 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, is difficult for crushing human body, and is safe in utilization.
Description of drawings
Fig. 1, existing backrest type folding chair structure schematic diagram
Fig. 2, the utility model embodiment 1 structural representation
Fig. 3, embodiment 1 softened state structural representation
Structural representation when Fig. 4, embodiment 1 load onto soft seat
Fig. 5, embodiment 1 folded state schematic diagram
Fig. 6, the utility model embodiment 2 structural representations
Fig. 7, embodiment 2 semi-collapsed condition structural representations
Fig. 8, embodiment 2 full folded state diagrams
1-foreleg bar 2-back leg bar 3-seat support bar 4-brace 5-sliding sleeve 6-bar 7-back support bar
8-cross-support members 9-cross-support members 10-hard seat 11-cross-support members
12-sliding sleeve locking device 12a-button 12b-spring contact
Specific embodiments
Embodiment 1 (Fig. 2-Fig. 5)
These routine seat support bar 3 middle parts are connected with foreleg bar 1 middle part hinge, the rear end is connected with back leg bar 2 middle part hinges, back support bar 7 lower ends are connected with position hinge between the seat support bar 3 the same back leg bar hinge points, back leg bar 2 upper ends are connected with sliding sleeve 5 hinges on being enclosed within back support bar 7, bar 6 rear ends are connected with the position hinge that back support bar 7 is positioned at sliding sleeve 5 tops, and the middle part is connected with foreleg bar 1 upper end hinge.
This example is provided with sliding sleeve locking device 12 between near the backrest body of rod 7 of bar 6 and back support bar 7 hinge point lower limbs and sliding sleeve 5, its structure is: be provided with spring contact 12b on the backrest body of rod, sliding sleeve 5 inwalls are provided with the shrinkage pool that spring contact is embedded, and sliding sleeve 5 outer walls are provided with the button 12a that can press spring contact.When sliding sleeve 5 slided into the hinge point place of back support bar and bar, spring contact elasticity embedded in the shrinkage pool of sliding sleeve inwall, and with sliding sleeve and back support bar locking, thereby sliding sleeve can not upwards slide and can not make the bracing frame that struts more stable to lower slider.Press the button 12a spring contact 12b deviate from from the sliding sleeve shrinkage pool, sliding sleeve 5 promptly with the back support bar release, can make bracing frame can fold gathering to lower slider.
The cross-support members 9 that is provided with between the forward and backward leg bar that both sides are connected as a single entity respectively, seat support bar, the back support bar is made up of the X-shaped support that two support bar middle part hinges are connected to form, two ends, X-shaped support bottom are connected with two foreleg bars, 1 underneath hinges respectively, both upper ends thereof is connected with seat support bar 3 anterior hinges respectively, cross-support members 8 is made up of the X-shaped support that two support bar middle part hinges are connected to form, two ends, X-shaped support bottom are connected with two back leg bars, 2 underneath hinges respectively, and both upper ends thereof is connected with two back support bar, 7 hinges respectively.
Structural representation when Fig. 4 loads onto soft seat for present embodiment
When this example folded over backward in seat support bar 3 front portions, the forward and backward leg bar of both sides was also drawn close to the centre simultaneously.
Utilize the present embodiment structure also plural bracing frame can be connected side by side, the shared cover in junction is linked as the forward and backward leg bar of one, and seat support bar and back support bar all can be drawn close to the centre when folding.
Embodiment 2 (Fig. 6-Fig. 8)
This example is equipped with hard seat 10 between two seat support bars 3, the hard seat is except that making seat, itself also have concurrently between the forward and backward leg bar that is connected as a single entity in both sides, seat support bar, the back support bar and play the cross-support members effect, be provided with cross-support members 11 between two back support bar 7.
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 (4)
1, the bracing frame of folding seat, be provided with two foreleg bars (1), two back leg bars (2), two seat support bars (3), two back support bar (7), it is characterized in that: the middle part of described seat support bar (3) is connected with the middle part hinge of foreleg bar (1) with back leg bar (2) respectively with the rear end, position hinge between the same back leg bar hinge point of back support bar (7) lower end and seat support bar (3) is connected, back leg bar (2) upper end is connected with sliding sleeve (5) hinge on being enclosed within back support bar (7), bar (6) rear end is connected with the position hinge that back support bar (7) is positioned at sliding sleeve (5) top, the middle part is connected with foreleg bar (1) upper end hinge, both sides be connected as a single entity respectively before, the back leg bar, the seat support bar, be provided with cross-support members (9 between the back support bar, 8,10,11).
2, the bracing frame of folding seat according to claim 1, it is characterized in that: both sides be connected as a single entity respectively before, the back leg bar, the seat support bar, the cross-support members that is provided with between the back support bar (9) is made up of the X-shaped support that two support bar middle part hinges are connected to form, two ends, X-shaped support bottom are connected with two foreleg bar (1) underneath hinges respectively, both upper ends thereof is connected with the anterior hinge of seat support bar (3) respectively, cross-support members (8) is made up of the X-shaped support that two support bar middle part hinges are connected to form, two ends, X-shaped support bottom are connected with two back leg bar (2) underneath hinges respectively, and both upper ends thereof is connected with two back support bar (7) hinge respectively.
3, the bracing frame of folding seat according to claim 1 is characterized in that: between described two seat support bars (3) hard seat (10) is housed.
4, according to the bracing frame of claim 1,2 or 3 described folding seat, it is characterized in that: between near the backrest body of rod (7) of bar (6) and back support bar (7) hinge point lower limb and sliding sleeve (5), be provided with sliding sleeve locking device (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200598863U CN2807923Y (en) | 2005-06-16 | 2005-06-16 | Support rack of folding chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200598863U CN2807923Y (en) | 2005-06-16 | 2005-06-16 | Support rack of folding chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807923Y true CN2807923Y (en) | 2006-08-23 |
Family
ID=36924102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200598863U Expired - Lifetime CN2807923Y (en) | 2005-06-16 | 2005-06-16 | Support rack of folding chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807923Y (en) |
Cited By (1)
| 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 |
-
2005
- 2005-06-16 CN CNU2005200598863U patent/CN2807923Y/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150616 Granted publication date: 20060823 |