CN211212183U - Chair with adjustable back inclination angle - Google Patents
Chair with adjustable back inclination angle Download PDFInfo
- Publication number
- CN211212183U CN211212183U CN201921640100.5U CN201921640100U CN211212183U CN 211212183 U CN211212183 U CN 211212183U CN 201921640100 U CN201921640100 U CN 201921640100U CN 211212183 U CN211212183 U CN 211212183U
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- chair
- pipe sleeve
- shaped inclined
- inclined plate
- connecting plate
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- 230000037396 body weight Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses an adjustable back of chair inclination's seat, mainly link through a slope unit and seat body, when the human body sits in the seat body and when the direction of inclination application of force, as long as press adjustment button this moment, the telescopic link of atmospheric pressure stick just can down contract, through the link plate, first U type hang plate, mutual pin joint between the second U type hang plate, make the slope unit wholly incline backward, with the interlock back of the chair, the chair cushion forms the slope form, its inclination mainly passes through the size of application of force, and the flexible length of telescopic link decides. In addition, after the chair cushion and the chair back determine the inclination angle, the user can apply force backwards after sitting on the chair cushion through the cooperation of the pivot shaft groups, the U-shaped inclined plates and the connecting plate so as to independently and further control the inclination angle of the chair back, and the chair back can automatically return to the originally set inclination angle after the force application is finished.
Description
Technical Field
The present invention relates to a seat, and more particularly to a seat with an adjustable inclination angle of a seat back.
Background
Please refer to taiwan patent document No. M536006, "seat waist rest structure", which discloses: a joint seat, a supporting seat and a connecting piece, wherein the joint seat is assembled at the lower position of the chair back, and two upper sides of the joint seat are respectively provided with an upper pivoting part; the supporting seat is provided with a supporting plate and a pad body, the pad body is arranged in front of the supporting plate, and pivoting parts are arranged at the two sides of the supporting plate corresponding to the positions of the upper pivoting parts; the connecting piece is provided with a pivot rod and an elastic piece, the pivot rod provides the pivot connection between the upper pivot connection part and the pivot connection part, and the elastic piece provides the pivot elastic force of the supporting seat corresponding to the joint seat; thus, the utility model can adjust the angle of the waist cushion body by matching with human engineering to improve the applicability and the comfort.
SUMMERY OF THE UTILITY MODEL
However, the chair is insufficient in that the inclination angle of the chair back is fixed, and cannot be adjusted according to the habit, demand and preference of the user, so the utility model discloses a designer thinks this is necessary to improve.
In order to achieve the above object, the utility model adopts the following technical scheme:
1. a chair with adjustable chair back inclination angle, comprising:
a seat body: comprises a chair cushion and a chair back arranged at the rear side of the chair cushion;
a tilting unit: the chair cushion comprises a connecting plate arranged on the bottom surface of the chair cushion, a first U-shaped inclined plate, a second U-shaped inclined plate and an air pressure rod, wherein a telescopic rod extends out of the top of the air pressure rod, and the top end of the telescopic rod is pivoted with the second U-shaped inclined plate; the first U-shaped inclined plate is fixedly arranged at the rear side of the front side of the air pressure rod, and the front end of the first U-shaped inclined plate is pivoted with the connecting plate through a first pivoting shaft group and is positioned in front of the telescopic rod; the first pivoting shaft group comprises a first corner post, a first pipe sleeve and a second pipe sleeve are sequentially sleeved on the outer side of the first corner post, a blind seal is formed between one end of the first pipe sleeve and one end of the first corner post, a blind seal is formed between one end of the second pipe sleeve and the other end of the first corner post, a first screw hole is arranged on the outer side of the first pipe sleeve and faces the first convex body of the bottom surface of the connecting plate, a first screw rod is screwed with the first screw hole, the end surface of the first screw rod abuts against the bottom surface of the connecting plate, the distance between the first convex body and the connecting plate is adjusted by rotating the first screw rod, and two vertical walls of the first U-shaped inclined plate are respectively provided with a strip hole arranged along the inclined direction of the first U-shaped inclined plate; the second U-shaped inclined plate is pivoted with the connecting plate through a second pivoting shaft group, the second pivoting shaft comprises a second corner post, a third pipe sleeve and a fourth pipe sleeve are sequentially sleeved at the outer side of the second corner post, a blind seal is formed between one end of the third pipe sleeve and one end of the second corner post, a blind seal is formed between one end of the fourth pipe sleeve and the other end of the second corner post, a second screw hole is arranged outside the third pipe sleeve and faces to a second convex body of the bottom surface of the connecting plate, a second screw is screwed with the second screw hole, and the end surface of the second screw abuts against the bottom surface of the connecting plate, by rotating the second screw rod to adjust the distance between the second convex body and the connecting plate, a rod section respectively passes through two vertical walls and each hole of the second U-shaped inclined plate, the front end of the first U-shaped inclined plate is positioned in front of the rear end of the second U-shaped inclined plate, and the first U-shaped inclined plate and the second U-shaped inclined plate form a pivot joint; the connecting plate is fixedly connected with each pipe sleeve respectively; the chair back is connected with the rear end of the second inclined bracket;
a chair leg seat body: is connected with the bottom end of the air pressure rod.
Wherein: an operating button is also arranged and is in power connection with the air pressure rod, and the operating button can be used for controlling the telescopic state of the telescopic rod in an operating mode.
Wherein: a gasket is also provided along the edge of each hole.
Therefore, the utility model discloses mainly through each component interlock, cooperation in this slope unit to make the user sit behind the seat pad, through pressing this operating button and then to this seat body toward the direction of rotation application of force, alright begin to adjust the inclination of this back of the chair and this seat pad, let go of this operating button after the adjustment, the inclination of this back of the chair and this seat pad just forms fixedly. When the chair back is required to return to the original inclination angle, the operating button is only required to be pressed again, then the force applied to the chair body is cancelled, at the moment, the telescopic rod returns to the original position, and then all elements in the inclination unit are linked to rotate, and finally the chair back is driven to return to the original inclination angle.
In addition, after the setting of the inclination angles of the chair back and the chair cushion is finished, when a user sits on the chair cushion, the user can apply force to the chair back by tilting backwards, at the moment, the first pipe sleeve and the third pipe sleeve are fixed through the arrangement of each pivot shaft group, each U-shaped inclined plate and the chair back, the second pipe sleeve and the fourth pipe sleeve can slightly twist like a twist rope, so that the inclination angle of the chair back can be independently and further increased, and when the external force application to the chair back is cancelled, the second pipe sleeve and the fourth pipe sleeve can be restored to the original set position due to the elastic restoring force so as to drive the chair back to restore to the originally set inclination angle.
Drawings
FIG. 1 is an external view of the present invention
FIG. 2 is a schematic view of the inclined state of the chair back and the chair cushion
FIG. 3 is an external view of the tilting unit of the present invention
FIG. 4 is another schematic view of the tilting unit of the present invention
FIG. 5 is a schematic view of another angle of the tilting unit of the present invention
FIG. 6 is an operation diagram of the tilting unit of the present invention
Description of reference numerals: 1-a seat body; 11-a seat cushion; 12-chair back; 2-a tilting unit; 21-a web; 22-a first U-shaped inclined plate; 221-holes; 222-a washer; 23-a second U-shaped inclined plate; 231-a pole segment; 24-pneumatic rod; 241-a telescopic rod; 242-operating buttons; 25-a first set of pivot axes; 251-a first corner post; 252 — a first sleeve; 253-a second pipe sleeve; 254-first screw hole; 255-first convexity; 256-first screw; 26-a second set of pivot axes; 261-a second corner post; 262-a third pipe sleeve; 263-fourth pipe sleeve; 264-second screw hole; 265-second convexity; 266-a second screw; 3-chair leg seat body; 31-wheel set.
Detailed Description
The structure, features and embodiments of the present invention will be described with the aid of the drawings, so that the present invention can be further understood by those skilled in the art.
Referring to fig. 1, the present invention relates to a chair with adjustable backrest inclination angle, comprising:
a seat body 1:
referring to fig. 1, the seat body 1 includes a seat cushion 11 and a seat back 12.
A tilting unit 2:
referring to fig. 3 and fig. 4, 5 and 6, the tilting unit 2 includes a connecting plate 21 disposed on the bottom surface of the seat cushion 11, a first U-shaped tilting plate 22, a second U-shaped tilting plate 23, and an air pressure rod 24, wherein a telescopic rod 241 extends from the top of the air pressure rod 24, and the top end of the telescopic rod 241 is pivotally connected to the second U-shaped tilting plate 23; the rear end of the first U-shaped inclined plate 22 is fixed on the front side of the air pressure bar 24, and the front end is pivoted with the connecting plate 21 by a first pivoting shaft group 25 and is positioned in front of the telescopic rod 241; the first pivot shaft set 25 includes a first corner post 251, a first pipe sleeve 252, and a second pipe sleeve 253 sequentially sleeved outside the first corner post 251, and a blind seal is formed between one end of the first pipe sleeve 252 and one end of the first corner post 251, and a blind seal is formed between one end of the second pipe sleeve 253 and the other end of the first corner post 251, a first screw hole 254 facing the first convex body 255 of the bottom surface of the connecting plate 21 is provided outside the first pipe sleeve 252, a first screw 256 is screwed with the first screw hole 254, and the end surface is operatively abutted against the bottom surface of the connecting plate 21, and two vertical walls of the first U-shaped inclined plate 25 are respectively provided with a strip hole 221 provided along the inclined direction of the first U-shaped inclined plate 22.
The second U-shaped inclined plate 23 and the connecting plate 21 are pivotally connected by a second pivot shaft group 26, the second pivot shaft group 26 includes a second corner post 261, a third pipe sleeve 262 and a fourth pipe sleeve 263 sequentially sleeved outside the second corner post 261, a blind seal is formed between one end of the third pipe sleeve 262 and one end of the second corner post 261, a blind seal is formed between one end of the fourth pipe sleeve 263 and the other end of the second corner post 261, a second protrusion 265 facing the bottom surface of the connecting plate 21 is provided on the outside of the third pipe sleeve 262 with a second screw 264, a second screw 266 is screwed with the second screw 264 and the end surface operatively abuts against the bottom surface of the connecting plate 21, and the backrest 12 is connected to the rear end of the second U-shaped inclined plate 23.
A rod section 231 is inserted through the two vertical walls of the second U-shaped inclined plate 23 and the holes 221, respectively, so that the front end of the first U-shaped inclined plate 22 is located in front of the rear end of the second U-shaped inclined plate 23. The backrest 12 can be adjusted in tilt angle by the combination of the air pressure rod 24, the first U-shaped tilting plate 22, the second U-shaped tilting plate 23, the first pivoting shaft set 25 and the second pivoting shaft set 26. Also, to reduce friction between the rod segment 231 and each hole 221, a washer 222 is preferably provided along the hole edge of each hole 221.
In addition, in order to control the actuation of the pneumatic rod 24 and adjust the exposed length of the telescopic rod 241, the pneumatic rod 24 may be implemented as: an operating button 242 is further provided to be in power connection with the pneumatic rod 24, and the operating button 242 is provided to operatively control the telescopic rod 241 to extend and retract, therefore, by changing the extending and retracting state of the telescopic rod 241, the tilt angles of the seat back 12 and the seat cushion 11 can be adjusted, and accordingly, the pneumatic rod 24 preferably has two functions: firstly, the tilt angles of the backrest 12 and the seat cushion 11 are adjusted. Secondly, the height of the seat body 1 is adjusted.
A seat leg base body 3:
referring to fig. 2, the seat body 3 is connected to the bottom end of the air pressure bar 24, and a wheel set 31 is preferably disposed at the bottom of the seat body 3 for moving.
Referring to FIG. 6 in conjunction with FIG. 1, FIG. 3, FIG. 4 and FIG. 5, the operation of the components of the present invention will be described, the rotation direction thereof can be seen by referring to arrows in the figure, when a human body presses the operation button 242 after sitting on the seat cushion 11, at this time, when the back of the human body is inclined backward, the body weight applies force to the rear end of the second U-shaped inclined plate 23, and at this time, the second U-shaped inclined plate 23 will rotate around the second pivot shaft set 26 to move the telescopic rod 241 downward, at the same time, the rod segment 231 moves along the holes 221 and applies a downward force to one end of the connection plate 21 due to the downward movement of the extension rod 241, and at this time, the connecting plate 21 rotates around the first pivot shaft set 25 for further increasing the tilt angle of the backrest 12, thereby completing the tilt of the backrest 12 and the seat cushion 11. In addition, it should be noted that the inclination angle of the backrest 12 can be controlled by the different strength exerted on the backrest 12 by the back of the human body, and when the inclination is achieved, the operation button 242 can be released, so that the inclination angle of the backrest 12 is fixed. When the operating button 242 is pressed again, the telescopic rod 241 will return to the original position and move upward to the top dead center as long as the force applied to the seat body 1 is cancelled, and the backrest 12 is driven to return to the original state according to the above-mentioned operating principle.
The utility model discloses not only above-mentioned function more provides above-mentioned this back of the chair 12 fixed angle, and the user can further make this back of the chair 12 have the function of further fine setting inclination according to the demand, and the mode of actuating of its function introduces as follows:
when the user sits on the seat cushion 11 and adjusts the tilt angle of the seat back 12, he can lean back to apply a force to the seat back 12, so that the second U-shaped tilt plate 23 will drive the second pivot shaft set 26 to rotate, but the second pivot shaft set 26 will cause the second screw 266 to abut against the bottom surface of the connecting plate 12 during the rotation process, which causes the third pipe sleeve 262 in the second pivot shaft set 26 to be fixed but the fourth pipe sleeve 263 to rotate, so that the second corner post 261 will slightly twist like a twist rope, and similarly, in the first pivot shaft set 25, the first pipe sleeve 252 and the second pipe sleeve 253 have the same action condition, and accordingly, the seat back 12 can be further tilted by the above-mentioned structure. When the human body leaves the seat body 1, the first corner post 251 and the second corner post 261 will return to the original state due to the elastic restoring force because the force applied to the seat back 12 is lost. In addition, the user can adjust the degree of difficulty of the backrest 12 by adjusting the first and second screws 256 and 266.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (3)
1. A chair with adjustable chair back inclination angle, comprising:
a seat body: comprises a chair cushion and a chair back arranged at the rear side of the chair cushion;
a tilting unit: the chair cushion comprises a connecting plate arranged on the bottom surface of the chair cushion, a first U-shaped inclined plate, a second U-shaped inclined plate and an air pressure rod, wherein a telescopic rod extends out of the top of the air pressure rod, and the top end of the telescopic rod is pivoted with the second U-shaped inclined plate; the first U-shaped inclined plate is fixedly arranged at the rear side of the front side of the air pressure rod, and the front end of the first U-shaped inclined plate is pivoted with the connecting plate through a first pivoting shaft group and is positioned in front of the telescopic rod; the first pivoting shaft group comprises a first corner post, a first pipe sleeve and a second pipe sleeve are sequentially sleeved on the outer side of the first corner post, a blind seal is formed between one end of the first pipe sleeve and one end of the first corner post, a blind seal is formed between one end of the second pipe sleeve and the other end of the first corner post, a first screw hole is arranged on the outer side of the first pipe sleeve and faces the first convex body of the bottom surface of the connecting plate, a first screw rod is screwed with the first screw hole, the end surface of the first screw rod abuts against the bottom surface of the connecting plate, the distance between the first convex body and the connecting plate is adjusted by rotating the first screw rod, and two vertical walls of the first U-shaped inclined plate are respectively provided with a strip hole arranged along the inclined direction of the first U-shaped inclined plate; the second U-shaped inclined plate is pivoted with the connecting plate through a second pivoting shaft group, the second pivoting shaft comprises a second corner post, a third pipe sleeve and a fourth pipe sleeve are sequentially sleeved at the outer side of the second corner post, a blind seal is formed between one end of the third pipe sleeve and one end of the second corner post, a blind seal is formed between one end of the fourth pipe sleeve and the other end of the second corner post, a second screw hole is arranged outside the third pipe sleeve and faces to a second convex body of the bottom surface of the connecting plate, a second screw is screwed with the second screw hole, and the end surface of the second screw abuts against the bottom surface of the connecting plate, by rotating the second screw rod to adjust the distance between the second convex body and the connecting plate, a rod section respectively passes through two vertical walls and each hole of the second U-shaped inclined plate, the front end of the first U-shaped inclined plate is positioned in front of the rear end of the second U-shaped inclined plate, and the first U-shaped inclined plate and the second U-shaped inclined plate form a pivot joint; the connecting plate is fixedly connected with each pipe sleeve respectively; the chair back is connected with the rear end of the second inclined bracket;
a chair leg seat body: is connected with the bottom end of the air pressure rod.
2. The chair of claim 1, wherein: an operating button is also arranged and is in power connection with the air pressure rod, and the operating button can be used for controlling the telescopic state of the telescopic rod in an operating mode.
3. A seat with adjustable backrest recline according to claim 1 or 2, wherein: a gasket is also provided along the edge of each hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640100.5U CN211212183U (en) | 2019-09-27 | 2019-09-27 | Chair with adjustable back inclination angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921640100.5U CN211212183U (en) | 2019-09-27 | 2019-09-27 | Chair with adjustable back inclination angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211212183U true CN211212183U (en) | 2020-08-11 |
Family
ID=71930469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921640100.5U Expired - Fee Related CN211212183U (en) | 2019-09-27 | 2019-09-27 | Chair with adjustable back inclination angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211212183U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106859096A (en) * | 2016-12-22 | 2017-06-20 | 青岛平制海琴家具制造有限公司 | A kind of seat of seat board slidably self adaptation sitting posture |
-
2019
- 2019-09-27 CN CN201921640100.5U patent/CN211212183U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106859096A (en) * | 2016-12-22 | 2017-06-20 | 青岛平制海琴家具制造有限公司 | A kind of seat of seat board slidably self adaptation sitting posture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 |