CN218588635U - Seat back adjusting mechanism - Google Patents
Seat back adjusting mechanism Download PDFInfo
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- CN218588635U CN218588635U CN202222660473.7U CN202222660473U CN218588635U CN 218588635 U CN218588635 U CN 218588635U CN 202222660473 U CN202222660473 U CN 202222660473U CN 218588635 U CN218588635 U CN 218588635U
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- shaped
- seat back
- air pressure
- frame
- seat
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Abstract
The utility model discloses a seat back adjustment mechanism. The seat back adjusting mechanism comprises a back frame part, a handrail part, a seat cushion frame, a connecting rod and an air pressure adjusting device, wherein the back frame part and the handrail part are integrally formed, two ends of the connecting rod are respectively hinged with the handrail and the seat cushion frame, the air pressure adjusting device is arranged at the lower part of the seat frame, and the air pressure adjusting device comprises an air pressure rod and an air pressure adjusting handle. The utility model discloses a back adjustment mechanism has practiced thrift the seat and has used the material, has simplified the regulative mode, makes the placing mode of user's arm more accord with ergonomic when using, has improved user's use travelling comfort.
Description
Technical Field
The utility model belongs to the field of chair furniture, in particular to be applied to back of chair angle adjustment mechanism of office chair.
Background
An office chair refers to a backrest chair used when a person works on a table top in a sitting posture. Generally, people feel waist soreness when carrying out desktop office for a long time, on the other hand, along with the expansion of cities and the development of traffic, the distance from a working place to a family is more and more, and in modern society, people basically spend at the office place in the noon, so that office chairs which can give consideration to office comfort and noon break become the needs of desktop office workers. The existing noon break office chair basically adopts a mode that a chair back frame and armrests are independently designed, in the mode, when noon break is carried out, the arms of a person are placed on the armrests, and the front ends of the armrests are higher than the rear ends of the armrests, so that the arms of the person are acid and numb basically after noon break. In order to solve this problem, it is necessary to provide a new adjustment mechanism for an office noon break chair.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an official working noon break chair adjustment mechanism accords with ergonomic, can solve the problem of the sour numb of arm after noon break of current official working noon break chair.
The utility model provides a seat back adjustment mechanism, includes back frame portion, handrail portion, seatpad frame, connecting rod and air pressure adjusting device, back frame portion with handrail portion is integrated into one piece, the both ends of connecting rod respectively with handrail portion and seat frame are articulated mutually, the seat frame with adjustment angle between the back frame portion can reach about 160. Adopt integrated into one piece's mode preparation back frame portion and handrail portion, improved work efficiency on the one hand, practiced thrift the material, on the other hand adopts this kind of structure, when putting the back of the chair into noon break, the front end of handrail portion is less than the rear end all the time, so can not produce the condition of arm acid anesthesia after the use yet.
The upper part of the backrest frame is provided with an arc-shaped bend which is matched with the curve of the neck of a human body, so that when people use the chair, the head of the people can naturally lean against the headrest, and the comfort of use is improved.
Seat back adjustment mechanism, back frame portion with handrail portion is made by elastic material, back frame portion with the back of handrail portion handing-over department is equipped with the recess of a certain amount, adopts this kind of structure, and when adjusting the back angle, the recess can produce the deformation that expands or reduce, has disperseed the effort of back frame portion with handrail portion, has improved the life of back frame portion with handrail portion.
The backrest comprises a seat backrest adjusting mechanism, a Y-shaped backrest support rod is arranged in the middle of the rear portion of a backrest frame, the Y-shaped upper supporting end of the Y-shaped backrest support rod is connected with the middle upper portion of a backrest frame portion, and a sliding groove is formed in one surface of the Y-shaped lower supporting end of the Y-shaped backrest support rod.
Seat back adjustment mechanism, the well sub-unit connection of back frame portion is one and is fit for the arc back device of human waist, back device other end shrink joint in the spout, back device joint in the both sides of spout one end are equipped with the handle, stimulate the handle, can make the arc back device slide certain distance from top to bottom to change the radian of arc back device, be fit for different people's use needs.
The seat backrest adjusting mechanism comprises an air pressure adjusting device and an air pressure adjusting handle, wherein the air pressure adjusting handle is pulled to push the air pressure rod to stretch and retract, so that the angle of the backrest is adjusted.
The utility model discloses simple structure, it is convenient to adjust back angle, has solved the problem of people's official working and noon break effectively, has improved the comfort level that people used.
Drawings
Fig. 1 is an exploded view of the seat back adjustment mechanism of the present invention;
fig. 2 is a perspective view of a seat back adjustment mechanism of the present invention;
fig. 3 is a schematic perspective view of the seat back adjusting mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, a seat back adjusting mechanism includes a back frame portion 1, armrest portions 2, a seat frame 3, a connecting rod 4 and an air pressure adjusting device 5, wherein the back frame portion 1 and the armrest portions 2 are integrally manufactured, two ends of the connecting rod 4 are respectively hinged to the armrest portions 2 and a seat cushion frame 3, and an adjusting angle between the seat cushion frame 3 and the back frame portion 1 can reach 170 °. The backrest frame part 1 and the armrest parts 2 are manufactured in an integrated manufacturing and forming mode, on one hand, the working efficiency is improved, and materials are saved, on the other hand, when the backrest is placed down for noon break, the front ends of the armrest parts are always lower than the rear ends of the armrest parts, and therefore the situation of arm limp and numb can not occur after the backrest is used.
The upper part of the backrest frame 1 is provided with an arc-shaped bend 13 which is adapted to the curve of the neck of a human body, so that when a person uses the chair, the head of the person can naturally lean against a headrest, and the comfort of use is improved.
Seat back adjustment mechanism, back frame portion 1 with handrail portion 2 is made by elastic material, back frame portion 1 with the back of handrail portion 2 handing-over department is equipped with the recess 11 of a certain amount, adopts this kind of structure, and when adjusting the back angle, the deformation that recess 11 can produce the expansion or reduce has dispersed back frame portion 1 and handrail portion 2's effort, has improved back frame portion 1 and handrail portion 2's life.
The seat back adjusting mechanism is characterized in that a Y-shaped back support rod 31 is arranged in the middle of the rear portion of the seat frame, the Y-shaped upper supporting end of the Y-shaped back support rod is connected with the middle upper portion of the back frame portion 1, and a sliding groove 32 is formed in one surface of the Y-shaped lower supporting end of the Y-shaped back support rod.
Seat back adjustment mechanism, the middle-lower part of back frame portion connects an arc back board 12 that is fit for human waist, the shrink joint of back board 12 other end in the spout 32, back integrated circuit board 12 connect in the both sides of spout 32 one end are equipped with handle 121, and pulling handle 121 can make arc back board 12 slide certain distance from top to bottom to change the radian of arc back board 12, be fit for different people's use needs.
The seat back adjusting mechanism, the pneumatic adjusting device 5 includes a pneumatic rod 51 and a pneumatic adjusting handle 52, and the pneumatic rod 51 can be pushed to extend and retract by pulling the pneumatic adjusting handle 52, so as to adjust the angle of the back.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (8)
1. The utility model provides a seat back adjustment mechanism, includes back frame portion (1), handrail portion (2), seatpad frame (3), connecting rod (4) and air pressure adjusting device (5), its characterized in that, back frame portion (1) with handrail portion (2) are integrated into one piece, the both ends of connecting rod (4) respectively with handrail portion (2) and seatpad frame (3) are articulated mutually.
2. A seat back adjustment mechanism according to claim 1, characterized in that the back frame part (1) and the armrest part (2) are made of an elastic material, and that the back surface at the interface of the back frame part (1) and the armrest part (2) is provided with a number of grooves (11).
3. The seat back adjustment mechanism according to claim 1 or 2, characterized in that the adjustment angle between the cushion frame (3) and the back frame portion (1) can be up to 170 °.
4. The seat back adjustment mechanism according to claim 1 or 2, characterized in that the backrest frame part (1) is provided at its upper part with an arc-shaped curvature (13) adapted to the curvature of the neck of a human being.
5. The seat back adjusting mechanism according to claim 1, wherein a Y-shaped back support rod (31) is provided at a rear middle position of the back frame portion (1), a Y-shaped upper end of the Y-shaped back support rod (31) is connected to an upper middle portion of the back frame portion (1), and a sliding groove (32) is provided at one surface of a Y-shaped lower end of the Y-shaped back support rod (31).
6. The seat back adjusting mechanism according to claim 5, characterized in that an arc-shaped backrest device (12) suitable for the waist of the human body is connected to the middle lower portion of the backrest frame portion (1), the other end of the arc-shaped backrest device (12) is contracted and clamped in the sliding groove (32), and handles (121) are arranged on two sides of one end of the arc-shaped backrest device (12) clamped in the sliding groove (32).
7. The seat back adjustment mechanism of claim 6, wherein the curved back rest arrangement (12) is a curved back plate.
8. The seat back adjustment mechanism according to claim 1, characterized in that the air pressure adjustment device (5) comprises an air pressure lever (51) and an air pressure adjustment handle (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222660473.7U CN218588635U (en) | 2022-10-10 | 2022-10-10 | Seat back adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222660473.7U CN218588635U (en) | 2022-10-10 | 2022-10-10 | Seat back adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218588635U true CN218588635U (en) | 2023-03-10 |
Family
ID=85401793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222660473.7U Active CN218588635U (en) | 2022-10-10 | 2022-10-10 | Seat back adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218588635U (en) |
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2022
- 2022-10-10 CN CN202222660473.7U patent/CN218588635U/en active Active
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| GR01 | Patent grant |