CN203841364U - Stepped chair - Google Patents
Stepped chair Download PDFInfo
- Publication number
- CN203841364U CN203841364U CN201420025231.3U CN201420025231U CN203841364U CN 203841364 U CN203841364 U CN 203841364U CN 201420025231 U CN201420025231 U CN 201420025231U CN 203841364 U CN203841364 U CN 203841364U
- Authority
- CN
- China
- Prior art keywords
- chair
- connecting rod
- seat plate
- supporting leg
- hinged
- 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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- Special Chairs (AREA)
Abstract
The utility model relates to a stepped chair which comprises two supporting legs, a chair back fixedly connected with the two supporting legs, and a chair plate, wherein one end of the chair plate is rotationally connected with the two supporting legs and can rotate upwards clockwise; a connecting rod group is arranged on each supporting leg; each connecting rod group comprises a first connecting rod and a second connecting rod which are hinged; the first connecting rods are hinged with the chair plate; the second connecting rods are hinged with the supporting legs; when the chair plate is flatly arranged, the second connecting rods are in press contact with one end, far away from the chair back, of the chair plate. The stepped chair has the beneficial effects that a simple four-rod structure is well used structurally, the front half part of the chair is supported by virtue of the properties of dead points, the chair can be prevented from tilting forwards, and the comfort of the chair in use is improved; meanwhile, due to the supporting effects of the second connecting rods, the service time of the chair can be prolonged to a great extent, the damage of the chair is reduced, and the comfortable sensation of the chair in use is improved.
Description
Technical field
The utility model relates to the technical field of chair, refers more particularly to a species stage chair.
Background technology
Ladder chair has become seat conventional in current lecture theater, because the seat board of ladder chair can not rotate when user does, the advantage such as take up room less, ladder chair is widely used, but ladder chair of the prior art is all to adopt rear end to support, be easy to just there will be seat to lean forward, or even situation about damaging, cause ladder chair not re-use.
Utility model content
The purpose of this utility model is to provide a species stage chair, to solve the above-mentioned deficiency of prior art.
The purpose of this utility model is to be achieved through the following technical solutions:
The utility model provides a species stage chair, this ladder chair comprises: two supporting legs, with described two seat back that supporting leg is fixedly connected with, and seat plate, wherein, one end of described seat plate and described two supporting legs are rotationally connected and can be along rotating in clockwise direction, and on each supporting leg, be provided with a connection rod set, each connection rod set comprises hinged first connecting rod and second connecting rod, described first connecting rod and described seat plate are hinged, described second connecting rod and described supporting leg are hinged, at described seat plate, be positioned at while setting level state, described second connecting rod compresses and contacts with one end away from seat back of described seat plate.
Preferably, on each supporting leg, be provided with the Horizontal limiting piece matching with described seat plate.
Preferably, in described the second connecting rod and one end away from seat back of described seat plate, compress while contacting, the angle between described the second connecting rod and described supporting leg is not more than 45 °.
Preferably, the pin joint between described first connecting rod and described seat plate is less than the length sum of described head rod and the second connecting rod to the air line distance of the pin joint between described second connecting rod and described supporting leg.
The beneficial effects of the utility model are: structurally well use simple four-bar mechanism, utilize the character at dead point that first half seat is supported, can prevent that seat from leaning forward, improve the comfort level while using.Meanwhile, due to the supporting role of second connecting rod, can extend significantly the service time of its seat, reduce breakage, improve the comfort of using.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in further detail below.
Fig. 1 is the ladder structure of chair schematic diagram described in the utility model embodiment.
In figure:
1, supporting leg; 2, seat back; 3, seat plate; 4, first connecting rod; 5, second connecting rod.
The specific embodiment
As shown in Figure 1, a species stage chair described in the utility model embodiment, this ladder chair comprises: two supporting legs 1, the seat back 2 being fixedly connected with described two supporting legs 1, and seat plate 3, wherein, one end of described seat plate 3 and described two supporting legs 1 are rotationally connected and can be along rotating in clockwise direction, and on each supporting leg 1, be provided with a connection rod set, each connection rod set comprises hinged first connecting rod 4 and second connecting rod 5, described first connecting rod 4 is hinged with described seat plate 3, described second connecting rod 5 is hinged with described supporting leg 1, at described seat plate 3, be positioned at while setting level state, described.
Concrete, on each supporting leg 1, be provided with the Horizontal limiting piece matching with described seat plate 3.And in described the second connecting rod and one end away from seat back of described seat plate 3, compress while contacting, the angle between described the second connecting rod and described supporting leg 1 is not more than 45 °.In addition, the pin joint between described first connecting rod 4 and described seat plate 3 is less than the length sum of described head rod and the second connecting rod to the air line distance of the pin joint between described second connecting rod 5 and described supporting leg 1.
After ladder chair installs, when ladder chair does not use, in seat plate 3 clockwise directions, turn to and seat back 2 level of approximation states, when using, seat plate 3 is put down, now, seat plate 3 rotates counterclockwise, because the pin joint between first connecting rod 4 and described seat plate 3 is less than the length sum of described head rod and the second connecting rod to the air line distance of the pin joint between described second connecting rod 5 and described supporting leg 1, therefore, now, first connecting rod 4 is relative with second connecting rod 5 to be clockwise rotated, seat plate 3 sides at ordinary times, the second connecting rod compresses and contacts with one end away from seat back of described seat plate 3, supporting chair plate 3, by seat plate 3, supporting leg 1, first connecting rod 4, second connecting rod 5 forms an approximate quadric chain, structurally well use simple four-bar mechanism, utilize the character at dead point that first half seat plate 3 is supported, can prevent that seat from leaning forward, improve the comfort level while using.Meanwhile, due to the supporting role of second connecting rod 5, can extend significantly the service time of its seat, reduce breakage, improve the comfort of using.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, within all dropping on protection domain of the present utility model.
Claims (4)
1. a species stage chair, it is characterized in that, comprise: two supporting legs, with described two seat back that supporting leg is fixedly connected with, and seat plate, wherein, one end of described seat plate and described two supporting legs are rotationally connected and can be along rotating in clockwise direction, and on each supporting leg, be provided with a connection rod set, each connection rod set comprises hinged first connecting rod and second connecting rod, described first connecting rod and described seat plate are hinged, described second connecting rod and described supporting leg are hinged, at described seat plate, be positioned at while setting level state, described second connecting rod compresses and contacts with one end away from seat back of described seat plate.
2. ladder chair according to claim 1, is characterized in that, is provided with the Horizontal limiting piece matching with described seat plate on each supporting leg.
3. ladder chair according to claim 1, is characterized in that, in described the second connecting rod and one end away from seat back of described seat plate, compresses while contacting, and the angle between described the second connecting rod and described supporting leg is not more than 45 °.
4. ladder chair according to claim 1, it is characterized in that, the pin joint between described first connecting rod and described seat plate is less than the length sum of described head rod and the second connecting rod to the air line distance of the pin joint between described second connecting rod and described supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025231.3U CN203841364U (en) | 2014-01-16 | 2014-01-16 | Stepped chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420025231.3U CN203841364U (en) | 2014-01-16 | 2014-01-16 | Stepped chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203841364U true CN203841364U (en) | 2014-09-24 |
Family
ID=51554444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420025231.3U Expired - Fee Related CN203841364U (en) | 2014-01-16 | 2014-01-16 | Stepped chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203841364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291922A (en) * | 2015-11-12 | 2016-02-03 | 刘章巨 | Seat back capable of being hidden |
-
2014
- 2014-01-16 CN CN201420025231.3U patent/CN203841364U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291922A (en) * | 2015-11-12 | 2016-02-03 | 刘章巨 | Seat back capable of being hidden |
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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: 20140924 Termination date: 20150116 |
|
| EXPY | Termination of patent right or utility model |