CN203252248U - Elastic backrest chair - Google Patents
Elastic backrest chair Download PDFInfo
- Publication number
- CN203252248U CN203252248U CN 201320154510 CN201320154510U CN203252248U CN 203252248 U CN203252248 U CN 203252248U CN 201320154510 CN201320154510 CN 201320154510 CN 201320154510 U CN201320154510 U CN 201320154510U CN 203252248 U CN203252248 U CN 203252248U
- Authority
- CN
- China
- Prior art keywords
- tube connector
- backrest
- retainer ring
- pipe box
- chair
- 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 - Fee Related
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model provides an elastic backrest chair. The chair is characterized in that the upper ends of four chair legs are connected together by a transversely arranged connecting pipe; 1-2 fixing rings provided with positioning holes in the middles are arranged in the middle of the connecting pipe; pipe sleeve heads internally/externally sleeved with the connecting pipe are respectively arranged at two ends of the connecting pipe, and a blind hole same with the positioning holes of the fixing rings is formed in the center of an inner sleeve head at the middle of each pipe sleeve head; a spring steel strip matched with the positioning holes of the fixing rings penetrates through the positioning holes of the fixing rings, and two ends of the spring steel strip are connected with the blind holes; a backrest is connected with the two pipe sleeve heads through L-shaped backrest support rods respectively arranged at the left side and the right side of the backrest; and a chair seat is connected with the connecting pipe and is supported on the connecting pipe. The backrest of the chair can elastically swing along use conditions of a user so as to bring a comfort feel to the user. The chair further has the advantages of simple structure, low manufacture cost and easiness in implementation.
Description
Technical field
The utility model relates to furniture, particularly a kind of elastic backrest seat.
Background technology
As everyone knows, the seat in the furniture mainly is comprised of chair pin, seat cushion, backrest and handrail.In the prior art, the angle of inclination of most of backrests is all fixed, and makes with convenient, reduce production costs, and be flexible although the backrest of indivedual senior couch is arranged, complex structure, cost is high, is unfavorable for applying.And the fixing seat of backrest inclination angle because inclination of the seat backrest can't adjust, no matter people's body size, bend over the desk to write or swing back that to have a rest all be same angle, can not be made corresponding adjustment, always allow the people that a kind of uncomfortable and undesirable sensation is arranged.Even to this day, prior art does not have also that a kind of backrest is flexible, simple in structure, the seat of low cost is for people to use, and this is prior art shortcoming part just.
Summary of the invention
The purpose of this utility model is to solve present backrest and fixes, and the defective that does not have elasticity to produce provides a kind of backrest flexible, can change with people's behaviour in service the elastic backrest seat of backrest angle.
Above-mentioned task realizes by this way: a kind of elastic backrest seat, include the chair pin, seat support, backrest and handrail, it is characterized in that: the upper end at four chair pin links together by a horizontal tube connector, in the tube connector middle part, be provided with the retainer ring that 1 ~ 2 centre has a locating hole, respectively be provided with the pipe box head that is socketed with tube connector inside and outside at the two ends of tube connector, pullover center has a blind hole identical with size with retainer ring locating hole shape in the pipe box head, a cross sectional shape and the big or small spring steel bar that matches with the retainer ring locating hole place in the retainer ring locating hole, two ends are connected with the blind hole of two pipe box heads, each L shaped back support bar was connected with two pipe box heads about described backrest passed through, and described seat support is connected with tube connector and is supported on the tube connector.
The utility model can also take following measure further perfect.
Described retainer ring locating hole cross section is square or rectangle.
Described spring steel bar is formed by stacking by two cluster spring steel bars up and down, is conducive to improve the flexibility of whole piece spring steel bar.
In the pipe box head, also be provided with a wear-resistant plastic cover between the pullover and tube connector, to reduce the wearing and tearing of pipe box head and tube connector, reduction noise.
Described seat support be the supporting that arranges with its both sides, seat support frame rear portion with tube connector on two cramp bars of corresponding setting be hingedly connected together, the seat support frame both sides above tube connector also are provided with the rest pad that contacts with it.
Be provided with a slotted hole at pipe box head outer tube, be provided with a stop screw that cooperates with slotted hole at tube connector, with the rotational angle of cheap restriction backrest, guarantee to use safety.
Operation principle of the present utility model: when people were sitting on this seat leans back, the back was naturally oppressed backrest and is moved to the back lower place, by L shaped back support bar, the pipe box head is rotated around tube connector, by its blind hole spring steel bar is also rotated.Because the centre of spring steel bar is anchored on the retainer ring locating hole, can not rotate, the whole piece spring steel bar is produced reverse.Along with backrest power increases, spring steel bar reverses degree and also increases, meanwhile, the twisting resistance of spring steel bar also increases, when the power of leaning against equals the twisting resistance of spring steel bar, when namely two power reach balance, backrest is just no longer backward mobile, at this moment, because backrest has changed the inclination angle, when swinging back, people just feel very comfortable.When people leave seat, there is not backrest power, the torsion that acts on the spring steel bar also disappears, and naturally is returned to formation state, and backrest also returns to the origin-location.
The beneficial effects of the utility model are as follows:
1. because the inclination angle of backrest can produce elastics wing with people's behaviour in service, using to people provides a kind of very comfortable sensation, has effectively solved the defective of prior art.
2. relatively simple for structure, to implement easily, cost is also more cheap.
3. because seat support of the present utility model passes through the hinged of its supporting and tube connector cramp bar, can erect around jointed shaft and put, as the common chair that folds, can be folded together, reduce the Accounting area, be convenient to deposit.
Description of drawings
Below in conjunction with accompanying drawing concrete structure of the present utility model is further described.
Fig. 1 is a kind of axle side assembling schematic diagram of elastic backrest seat.
Fig. 2 is along the broken section enlarged drawing of A-A line among Fig. 1.
Fig. 3 be among Fig. 1 B to the broken section enlarged diagram.
Fig. 4 is along the enlarged diagram of analysing and observe of C-C line among Fig. 2.
The specific embodiment
With reference to Fig. 1, a kind of elastic backrest seat, include chair pin 1, seat support 2, backrest 3 and handrail 4, it is characterized in that: the upper end of described four chair pin 1 links together by a horizontal tube connector 5, is provided with the retainer ring 7 that 1 ~ 2 centre has locating hole 6 in the middle part of tube connector 5.As shown in Figure 2, respectively be provided with the pipe box head 8 that is socketed with tube connector 5 inside and outside at the two ends of tube connector 5, have a blind hole 10 identical with size with retainer ring 7 locating holes 6 shapes at pipe box head 8 interior pullover 9 centers, article one, cross sectional shape and the big or small spring steel bar 11 that matches with the locating hole 6 of retainer ring 7 pass retainer ring 7 locating holes 6, and two ends are connected with the blind hole 10 of two pipe box heads 8.Each L shaped back support bar 12 was connected (shown in Fig. 2 ~ 3) with two pipe box heads 8 about described backrest 3 passed through.Described seat support 2 is connected with tube connector 5 on the supporting tube connector 5.
Embodiment 1, and described retainer ring 7 is two, and the cross section of the locating hole 6 of retainer ring 7 is square.
Claims (6)
1. elastic backrest seat, include chair pin (1), seat support (2), backrest (3) and handrail (4), it is characterized in that: the upper end of described four chair pin (1) links together by a horizontal tube connector (5), in the middle part of tube connector (5), be provided with the retainer ring (7) that 1 ~ 2 centre has locating hole (6), respectively be provided with the pipe box head (8) that is socketed with tube connector (5) inside and outside at the two ends of tube connector (5), pullover (9) center has a blind hole (10) identical with size with retainer ring (7) locating hole (6) shape in pipe box head (8), article one, cross sectional shape and the big or small spring steel bar (11) that matches with the locating hole (6) of retainer ring (7) pass retainer ring (7) locating hole (6), two ends are connected with the blind hole (10) of two pipe box heads (8), each L shaped back support bar (12) was connected with two pipe box heads (8) about described backrest (3) passed through, and described seat support (2) is connected with tube connector (5) and is supported on the tube connector (5).
2. elastic backrest seat according to claim 1, it is characterized in that: described retainer ring (7) is two, the cross section of the locating hole (6) of retainer ring (7) is square.
3. elastic backrest seat according to claim 1, it is characterized in that: described spring steel bar (11) is to be formed by stacking by two cluster spring steel bars.
4. elastic backrest seat according to claim 1 is characterized in that: described at pipe box head (8) interior pullover (9) and tube connector (5) between be provided with a wear-resistant plastic cover (14).
5. elastic backrest seat according to claim 1, it is characterized in that: described seat support (2) is to be hingedly connected together with two cramp bars (17) of the upper corresponding setting of tube connector (5) with the supporting (16) that its seat support frame (15) both sides, back arrange, and is provided with the with it rest pad (18) of contact in seat support frame (15) both sides of tube connector (5) top.
6. elastic backrest seat according to claim 1 is characterized in that:. the outer tube (13) in pipe box head (8) is provided with a slotted hole (19), is provided with a stop screw (20) that cooperates with slotted hole (19) at tube connector (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154510 CN203252248U (en) | 2013-04-01 | 2013-04-01 | Elastic backrest chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154510 CN203252248U (en) | 2013-04-01 | 2013-04-01 | Elastic backrest chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203252248U true CN203252248U (en) | 2013-10-30 |
Family
ID=49464866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154510 Expired - Fee Related CN203252248U (en) | 2013-04-01 | 2013-04-01 | Elastic backrest chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203252248U (en) |
-
2013
- 2013-04-01 CN CN 201320154510 patent/CN203252248U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20210401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |