CN203262700U - Anti-humpback seat - Google Patents
Anti-humpback seat Download PDFInfo
- Publication number
- CN203262700U CN203262700U CN 201320296188 CN201320296188U CN203262700U CN 203262700 U CN203262700 U CN 203262700U CN 201320296188 CN201320296188 CN 201320296188 CN 201320296188 U CN201320296188 U CN 201320296188U CN 203262700 U CN203262700 U CN 203262700U
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- China
- Prior art keywords
- leg
- gear
- ratchet
- chair back
- tooth bar
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- 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.)
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Abstract
The utility model discloses a seat and in particular relates to an anti-humpback seat. The anti-humpback seat comprises a seat back and seat legs; the anti-humpback seat is characterized by further comprising upper half legs and lower half legs, a sitting posture sensing unit and a locking device, wherein the upper half legs and the lower half legs can be horizontally moved with each other in a nearly vertical direction; the sitting posture sensing unit is arranged on the seat back and used for sensing the pressure of the people to the seat back; the locking device is used for locking a first rack and a first gear; and the locking device is connected with the sitting posture sensing unit. The anti-humpback seat is convenient to use, incapable of enabling the people to feel comfortable and capable of giving out a warning when the sitting posture is incorrect.
Description
Technical field
The utility model relates to a kind of chair, particularly a kind of anti-bow-backed seat.
Background technology
Standard student's sitting posture helps to prevent hunchback, and when sitting posture of student was rectified, its back can not contact with the chair back or only can contact with the top of the chair back.In case the student bends over, when sitting posture dishonoured, just can there be with the bottom of the chair back larger contact force at its back.The mode that more existing anti-bow-backed seat adopts adjusting seat height or band to fix student's health has the inconvenience of use and uses uncomfortable shortcoming, and sitting posture of student can not be reminded when improper.
Summary of the invention
The technical problem that (one) will solve
The technical problems to be solved in the utility model is to solve existing anti-bow-backed seat to use inconvenience, use shortcoming uncomfortable and that can not remind.
(2) technical scheme
For solving the problems of the technologies described above, the utility model provides a kind of anti-bow-backed seat, comprise: the chair back and chair leg, described chair leg also comprises first leg, second leg, intermeshing the first tooth bar and the first gear, described first leg be connected second leg and connect by the first tooth bar, the first gear, to realize translation mutually near vertical direction, be provided with back-moving spring between described first leg and described second leg;
Described anti-bow-backed seat also comprises: the sitting posture sensing cell, and described sitting posture sensing cell is positioned on the described chair back, is used for the sensing people to the pressure of the described chair back;
Locking device is used for locking described the first tooth bar and described the first gear, and described shrinking device is connected with described sitting posture sensing cell, it has two states, when the sitting posture sensing cell does not sense people's pressure, be in locking state, described the first gear is fixed on described the first tooth bar; When the sitting posture sensing cell senses people's pressure, be in released state, described the first gear can move on described the first tooth bar.
Wherein, described chair leg is the back leg of two close described chair back, and described first leg is tubular structure, and a side is provided with the rod slide groove, it is inner that described the first tooth bar is located at described first leg, and described second leg can be in the inner translation mutually near vertical direction of described first leg;
Described sitting posture sensing cell comprises: one side is provided with backrest, the spring of the second tooth bar and the second gear and the gear-box that meshes with described the second tooth bar, described backrest is located on the described chair back by described spring, and can move relative to the described chair back when pressurized, the described second described chair back of rack alignment, described the second gear is located on the described chair back by described gear-box;
Described locking device, comprise the connecting rod that is provided with ratchet, the ratchet that coordinates with described ratchet and be used for driving the line of described ratchet, one end of described line is connected with described ratchet, the rolling when other end is rotated by described the second gear, described connecting rod two ends are located at respectively in described rod slide groove, and can move along described rod slide groove, described the first gear is separately fixed at the two ends of described connecting rod; When described backrest was not subject to people's pressure, described locking device was in described locking state, and described ratchet snaps in described ratchet; When described backrest was subject to people's pressure, described locking device was in described released state, and described ratchet breaks away from described ratchet.
Wherein, described chair leg is the back leg of two close described chair back, and described second leg is tubular structure, and a side is provided with the rod slide groove, it is inner that described the first tooth bar is located at described second leg, and described first leg can be in the inner translation mutually near vertical direction of described second leg;
Described sitting posture sensing cell comprises: one side is provided with backrest, the spring of the second tooth bar and the second gear and the gear-box that meshes with described the second tooth bar, described backrest is located on the described chair back by described spring, and can move relative to the described chair back when pressurized, the described second described chair back of rack alignment, described the second gear is located on the described chair back by described gear-box;
Described locking device, comprise the connecting rod that is provided with ratchet, the ratchet that coordinates with described ratchet and be used for driving the line of described ratchet, one end of described line is connected with described ratchet, the rolling when other end is rotated by described the second gear, described connecting rod two ends are located at respectively in described rod slide groove, and can move along described rod slide groove, described the first gear is separately fixed at the two ends of described connecting rod; When described backrest was not subject to people's pressure, described locking device was in described locking state, and described ratchet snaps in described ratchet; When described backrest was subject to people's pressure, described locking device was in described released state, and described ratchet breaks away from described ratchet.
Wherein, also be provided with on the described chair back be used to the folding chair back that promotes described backrest, described folding chair back upper end can be around described chair back rotation.
Wherein, described locking device also comprises a fixed pulley, and described fixed pulley is located on the described chair back, and it is surperficial that described line slides on described fixed pulley.
(3) beneficial effect
Anti-bow-backed seat of the present utility model does not need the people to regulate, do not need to bind the people by band yet, thereby easy to use and comfortable, when the improper timing of sitting posture, this seat can automatically be controlled the chair leg and shrink, and sends slight prompting, supervise the people to change sitting posture, thereby have more hommization.
Description of drawings
Fig. 1 is the front view of anti-bow-backed seat of the present utility model;
Fig. 2 is the left view of the anti-bow-backed seat in Fig. 1;
Fig. 3 is first leg and second leg syndeton schematic diagram of the anti-bow-backed seat in Fig. 1;
Fig. 4 is the syndeton cutaway view of first leg, second leg and the connecting rod of the anti-bow-backed seat in Fig. 1;
Fig. 5 is that the A of first leg of the anti-bow-backed seat in Fig. 4 is to view;
Fig. 6 is the structural representation of the sitting posture sensing cell of the anti-bow-backed seat in Fig. 1;
Wherein: 1, the chair back; 101, folding chair back; 2, chair leg; 201, first leg; 202, second leg; 203, the first tooth bar; 204, the first gear; 205, back-moving spring; 301, the second tooth bar; 302, backrest; 303, spring; 304, the second gear; 305, gear-box; 306, rotary gear shaft; 401, ratchet; 402, connecting rod; 403, ratchet; 404, line; 405, fixed pulley.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
as Fig. 1 to anti-bow-backed seat shown in Figure 6, comprise the chair back 1 and two two chair legs 2 near the chair back 1 one sides, chair leg 2 comprises first leg 201, second leg 202, intermeshing the first tooth bar 203 and the first gear 204, first leg 201 is tubular structure, and a side is provided with rod slide groove 206, inside is fixed with the first tooth bar 203, second leg 202 inserts in first leg 201, and can be near vertical direction and the mutual translation of first leg 201, also be connected with back-moving spring 205 between first leg 201 and second leg 202, be used for first leg 201 is strutted certain distance with second leg 202.
Should also comprise the sitting posture sensing cell by anti-bow-backed seat, it comprises, one side is provided with the backrest 302 of the second tooth bar 301, spring 303, and with the second gear 304 and the gear-box 305 of the second tooth bar 301 engagements.Backrest 302 be positioned at the chair back 1 on the lower side the side the position, can by allowing the user bend over, see that the contact point of its back and the chair back 1 is determined particular location.Backrest 302 is connected on the chair back 1 by spring 303, and the second tooth bar 301 is aimed at the chair back 1, and the hole from the chair back 1 passes, and backrest 302 can move relative to the chair back 1 when being under pressure, and band carry-over bar 301, and gear 304 is rotated.Gear 304 is arranged on by gear-box 305 on the back side of the chair back 1, gear 304 be provided with can winding wire rotary gear shaft 306.Spring 303 is used for backrest 302 is resetted.
Should also comprise locking device by anti-bow-backed seat, and be used for locking the first tooth bar 203 and the first gear 204, it comprises, is provided with the connecting rod 402 of ratchet 401, the ratchet 403 that coordinates with ratchet 401 and for the line 404 of drive ratchet 403.One end of described line 404 is connected with ratchet 403, and the other end is wrapped on rotary gear shaft 306, and can or unreel by rotary gear shaft 306 rotation rollings.(when suitable the length of line is) connecting rod 402 two ends are located at respectively in rod slide groove 206 on chair leg 2, and can slide therein, two ends of connecting rod 402 are fixedly connected with the first gear 204 respectively, when making two the first gears 204 move simultaneously on the first tooth bar 203, but drivening rod 402 moves together.Ratchet 401 is fixed on connecing of connecting rod 402 paracentral position.Locking device has two states, and during locking state, ratchet 403 snaps in ratchet 401, and connecting rod 402 can not rotate, and during released state, ratchet 403 breaks away from ratchet 401, and connecting rod 402 can rotate.
Operation principle that should anti-bow-backed seat is, during unmanned the use, backrest 302 under the support of spring 303 with the chair back 1 at a distance of setpoint distance.Ratchet 403 snaps in ratchet 401, and connecting rod 402 can not rotate, and the first gear 204 can not move mutually at the first tooth bar 203, keeps static between first leg 201 and second leg 202 thereby make.Line 404 is tightened and is wrapped on rotary gear shaft 306, and first leg 201 and second leg 202 spring 205 that is reset struts certain distance.
During use, if people's sitting posture is correct, its back do not contact with backrest 302 or contact force very little, can not oppress backrest 302 and move, this moment, anti-bow-backed seat can not change.
If people's sitting posture is not rectified, contacting more energetically occurs in its back and backrest 302, can oppress backrest 302 and move to the chair back 1, moves just can drive the second tooth bar 301, makes the second gear 304 rotations.Line 404 by rolling, just can drag ratchet 403 and break away from from ratchet 401 when the second gear 304 rotates, and just can mutually move between such the first gear 204 and the first tooth bar 203.Due to people's Action of Gravity Field, shorten downwards with relative second leg 202 of first leg 201 of the first tooth bar 203, by to back-moving spring 205 elastic force adjusting, the contract by distance of first leg 201 can be adjusted to smaller amplitude.This moment, the people can be because being subject to the slight unbalance prompting of receiving, thus the change sitting posture.
When the reply of people's sitting posture was rectified, first leg 201 was returned to the starting position under the support of back-moving spring 205.Backrest 302 is returned to the starting position under the support of spring 303, the second gear 304 revolution unreels line 404, and ratchet 403 snaps in ratchet 401 again, realizes firmly being connected between first leg 201 and second leg 202.
In other embodiments of the present utility model, also wantonly one or more chair leg can be arranged to first leg as above and second leg structure.
In other embodiments of the present utility model, can be also that second leg is tubular structure, the first tooth bar is fixed in inside, and first leg inserts second leg near the translation on vertical direction, but the first gear is fixed on first leg by connecting rod.
Of the present utility model a kind of preferred embodiment in, the chair back 1 also is provided with folding chair back 101, folding chair back 101 upper ends are connected in the chair back 1 top, the lower end can rotate around the upper end, and can promote backrest 302 when pressurized, folding chair back 101 is used for supporting people's back, obtains comfort.
Of the present utility model a kind of preferred embodiment in, locking device also comprises a fixed pulley 405, fixed pulley 405 is located on the chair back 1, line 404 is through fixed pulleys 405, and at its surface sliding, this line-transect 404 can drive ratchet 403 more smoothly.
Above embodiment only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (5)
1. prevent bow-backed seat for one kind, comprise: the chair back and chair leg, it is characterized in that, described chair leg also comprises first leg, second leg, intermeshing the first tooth bar and the first gear, described first leg be connected second leg and connect by the first tooth bar, the first gear, to realize translation mutually near vertical direction, be provided with back-moving spring between described first leg and described second leg;
Described anti-bow-backed seat also comprises: the sitting posture sensing cell, and described sitting posture sensing cell is positioned on the described chair back, is used for the sensing people to the pressure of the described chair back;
Locking device is used for locking described the first tooth bar and described the first gear, and described shrinking device is connected with described sitting posture sensing cell, it has two states, when the sitting posture sensing cell does not sense people's pressure, be in locking state, described the first gear is fixed on described the first tooth bar; When the sitting posture sensing cell senses people's pressure, be in released state, described the first gear can move on described the first tooth bar.
2. anti-bow-backed seat as claimed in claim 1, it is characterized in that, described chair leg is the back leg of two close described chair back, described first leg is tubular structure, and a side is provided with the rod slide groove, it is inner that described the first tooth bar is located at described first leg, and described second leg can be in the inner translation mutually near vertical direction of described first leg;
Described sitting posture sensing cell comprises: one side is provided with backrest, the spring of the second tooth bar and the second gear and the gear-box that meshes with described the second tooth bar, described backrest is located on the described chair back by described spring, and can move relative to the described chair back when pressurized, the described second described chair back of rack alignment, described the second gear is located on the described chair back by described gear-box;
Described locking device, comprise the connecting rod that is provided with ratchet, the ratchet that coordinates with described ratchet and be used for driving the line of described ratchet, one end of described line is connected with described ratchet, the rolling when other end is rotated by described the second gear, described connecting rod two ends are located at respectively in described rod slide groove, and can move along described rod slide groove, described the first gear is separately fixed at the two ends of described connecting rod; When described backrest was not subject to people's pressure, described locking device was in described locking state, and described ratchet snaps in described ratchet; When described backrest was subject to people's pressure, described locking device was in described released state, and described ratchet breaks away from described ratchet.
3. anti-bow-backed seat as claimed in claim 1, it is characterized in that, described chair leg is the back leg of two close described chair back, described second leg is tubular structure, and a side is provided with the rod slide groove, it is inner that described the first tooth bar is located at described second leg, and described first leg can be in the inner translation mutually near vertical direction of described second leg;
Described sitting posture sensing cell comprises: one side is provided with backrest, the spring of the second tooth bar and the second gear and the gear-box that meshes with described the second tooth bar, described backrest is located on the described chair back by described spring, and can move relative to the described chair back when pressurized, the described second described chair back of rack alignment, described the second gear is located on the described chair back by described gear-box;
Described locking device, comprise the connecting rod that is provided with ratchet, the ratchet that coordinates with described ratchet and be used for driving the line of described ratchet, one end of described line is connected with described ratchet, the rolling when other end is rotated by described the second gear, described connecting rod two ends are located at respectively in described rod slide groove, and can move along described rod slide groove, described the first gear is separately fixed at the two ends of described connecting rod; When described backrest was not subject to people's pressure, described locking device was in described locking state, and described ratchet snaps in described ratchet; When described backrest was subject to people's pressure, described locking device was in described released state, and described ratchet breaks away from described ratchet.
4. anti-bow-backed seat as claimed in claim 2 or claim 3, is characterized in that, also is provided with on the described chair back be used to the folding chair back that promotes described backrest, and described folding chair back upper end can be around described chair back rotation.
5. prevent as claimed in claim 2 or claim 3 bow-backed seat, it is characterized in that, described locking device also comprises a fixed pulley, and described fixed pulley is located on the described chair back, and it is surperficial that described line slides on described fixed pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296188 CN203262700U (en) | 2013-05-28 | 2013-05-28 | Anti-humpback seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320296188 CN203262700U (en) | 2013-05-28 | 2013-05-28 | Anti-humpback seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203262700U true CN203262700U (en) | 2013-11-06 |
Family
ID=49493213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320296188 Expired - Fee Related CN203262700U (en) | 2013-05-28 | 2013-05-28 | Anti-humpback seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203262700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300620A (en) * | 2013-05-28 | 2013-09-18 | 苏州市职业大学 | Anti-humpback seat |
-
2013
- 2013-05-28 CN CN 201320296188 patent/CN203262700U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103300620A (en) * | 2013-05-28 | 2013-09-18 | 苏州市职业大学 | Anti-humpback seat |
| CN103300620B (en) * | 2013-05-28 | 2015-09-09 | 苏州市职业大学 | A kind of anti-bow-backed seat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140528 |