CN108741858B - Backrest adjusting device for experiment chair - Google Patents
Backrest adjusting device for experiment chair Download PDFInfo
- Publication number
- CN108741858B CN108741858B CN201810762664.XA CN201810762664A CN108741858B CN 108741858 B CN108741858 B CN 108741858B CN 201810762664 A CN201810762664 A CN 201810762664A CN 108741858 B CN108741858 B CN 108741858B
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- backrest
- adjusting
- iron plate
- frame
- locking mechanism
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- 238000002474 experimental method Methods 0.000 title claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 96
- 229910052742 iron Inorganic materials 0.000 claims description 48
- 238000013461 design Methods 0.000 abstract description 13
- 238000011160 research Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000036544 posture Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/62—Accessories for chairs
Abstract
The application discloses a backrest adjusting device for an experimental chair, which comprises a frame and a backrest plate; the back board is provided with a stepless adjusting structure unit for realizing height, angle, depth and/or shape. The size and shape of the application are adjusted to the backrest of the office chair, which can realize stepless adjustment in height, angle and depth, can meet the angle change of forward tilting, vertical and backward tilting, is more flexible and changeable, and is fully suitable for the experimental requirements of office chair design; the adjusting method can obtain more abundant and comprehensive backrest size and shape experimental values when researching the functional design characteristics of the office chair, thereby being beneficial to the functional design research of the office chair.
Description
Technical Field
The application belongs to the technical field of office furniture design, and particularly relates to a backrest adjusting device for an experimental chair.
Background
The design of the size and the shape of office chairs on the market mostly stays on the past experience and the imitation reference, lacks scientific support of innovative research, and limits the investment of most enterprises on the manpower and financial resources of new products because of higher mold opening cost of each research and development of the enterprises, so that the update iteration speed of the new products of the office chairs is slow, and the design of really taking the comfort feeling of people into consideration is very little.
The existing experimental chair for office chair function design is mainly used for carrying out step-by-step adjustment aiming at the size, and an adjusting mode is not involved in the part of form adjustment, so that at present, the influence of the size of each functional structure of the research office chair on the sitting comfort of a human body is not flexible and comprehensive, and the influence of the form of each functional structure of the research office chair on the sitting comfort of the human body is relatively deficient.
Disclosure of Invention
The application aims to provide the backrest adjusting device for the experimental chair, which can realize stepless adjustment of the size and the shape of the functional structure of the backrest of the office chair, and aims to reduce the cost of researching new products of enterprises and improve the scientificity of researching the new products.
The application aims at realizing the following technical scheme:
a backrest adjusting device for an experimental chair comprises a frame and a backrest plate; the back board is provided with a stepless adjusting structure unit for realizing height, angle, depth and/or shape.
The stepless adjusting structure unit is a threaded hole arranged on the backrest adjusting device and a screw rod matched with the threaded hole for use.
The frame is a square iron frame, a front sliding locking mechanism and a rear sliding locking mechanism are arranged on the frame, so that the depth of the backrest support is adjusted, and a vertical sliding locking mechanism is arranged on the frame, so that the height of the backrest support is adjusted.
The up-down sliding locking mechanism comprises a backrest small square tube and a backrest large square tube, wherein the backrest small square tube can be sleeved in the backrest large square tube and is fixed through bolts, so that up-down sliding locking is realized.
The front-back sliding locking mechanism comprises a sliding rail strip and a sliding rail seat, wherein the sliding rail strip is arranged on the sliding rail seat and is fixed through bolts, so that front-back sliding locking is realized.
The back board comprises a waist adjusting iron plate, an upper back adjusting iron plate and a neck adjusting iron plate which are mutually independent, wherein more than 3 stepless adjusting structural units are arranged on the waist adjusting iron plate, the upper back adjusting iron plate and the neck adjusting iron plate; the stepless adjusting structure unit is a threaded hole arranged on the iron plate and an adjustable screw rod matched with the stepless adjusting structure unit for use; the waist adjusting iron plate, the upper back adjusting iron plate and the neck adjusting iron plate are respectively provided with an angle adjusting piece.
The backboard is connected with the frame through an up-down sliding locking mechanism and a front-back sliding locking mechanism.
The beneficial effects are that: compared with the prior art, the application has the following advantages:
1) The size adjustment relates to the backrest of the office chair, can realize stepless adjustment in height, angle and depth, meets the angle change of forward tilting, vertical tilting and backward tilting, is more flexible and changeable, and is fully suitable for the experimental requirements of office chair design;
2) The shape adjustment relates to the backrest of the office chair, can form any required shape, is stepless adjustment in adjustment, and can realize the fixation of covering materials and filling materials through strong magnetism and magic tapes;
3) The adjusting method can obtain more abundant and comprehensive backrest size and shape experimental values when researching the functional design characteristics of the office chair, thereby being beneficial to the functional design research of the office chair.
Drawings
FIG. 1 is a schematic structural view of a ferrous frame;
FIG. 2 is a schematic structural view of a backrest adjustment;
FIG. 3 is a schematic structural view of the experimental chair;
fig. 4 is a schematic view of a backrest adjustment test.
Detailed Description
The application is further described below with reference to the accompanying drawings.
Example 1
The application relates to a backrest adjusting device for an experimental chair, which mainly comprises a frame 1, a seat surface 2 and a backrest adjusting device 3. Wherein the backrest adjusting means 3 is arranged on the backrest of the frame 1; a stepless adjusting structure unit for realizing the height, the angle, the depth and/or the shape is arranged on the backrest adjusting device 3. The stepless adjusting structure unit arranged on the backrest adjusting device 3 comprises a threaded hole and a screw H matched with the threaded hole.
As shown in fig. 1, the frame 1 is a square iron frame, a front-back sliding locking mechanism 6 is arranged on the frame, so that the depth of the backrest bracket is adjusted, and a vertical sliding locking mechanism 5 is arranged on the frame, so that the height of the backrest bracket is adjusted. The up-down sliding locking mechanism 5 comprises 2 small backrest square tubes A and 2 large backrest square tubes B, wherein the small backrest square tubes A can be sleeved into the large backrest square tubes B and are fixed through bolts, so that up-down sliding locking is realized. The front-back sliding locking mechanism 6 comprises 2 sliding rail bars D and 2 sliding rail seats E, wherein the sliding rail bars D are arranged on the sliding rail seats E and are fixed through bolts, so that front-back sliding locking is realized.
The square iron frame is used as a basic part of the whole experimental chair and is used for supporting and fixing all part adjusting devices, the iron frame structure can be designed into an assembling mode for convenient carrying, the iron frame structure is divided into three parts, each part can not be split any more, simple assembling can be realized between the parts, an iron pipe in the vertical direction is in the form of a large square pipe sleeved with a small square pipe, an up-down sliding locking mechanism is formed, and stepless adjustment in the height direction is conveniently realized through the principle design of nested sliding and compression locking; the sliding locking mechanism is formed by sliding rails back and forth, so that depth adjustment in a certain range is realized, and all adjustment uses hand wheels to fix positions.
As shown in fig. 2, the backrest adjusting device comprises a waist adjusting iron plate J, an upper back adjusting iron plate K and a neck adjusting iron plate L which are mutually independent, and more than 3 stepless adjusting structural units are arranged on the waist adjusting iron plate J, the upper back adjusting iron plate K and the neck adjusting iron plate L; the stepless adjusting structure unit is a threaded hole arranged on the iron plate and an adjustable screw H matched with the stepless adjusting structure unit; the waist adjusting iron plate J, the upper back adjusting iron plate K and the neck adjusting iron plate L are respectively provided with an angle adjusting piece M.
The neck iron plate, the upper back iron plate and the waist iron plate of the backrest adjusting device are mutually independent and can be adjusted independently, the three iron plates are provided with a bolt adjusting and fixing mechanism and an angle adjusting and locking mechanism, the three iron plates are provided with the bolt adjusting and fixing mechanism, each iron plate is provided with two angle adjusting pieces, the middle points of the two sides of each iron plate are respectively welded with a small iron block, the small iron blocks are welded with the angle adjusting pieces, the small bolts penetrate through backrest brackets on square iron frames and penetrate through threaded holes at the upper ends of the angle adjusting pieces, so that the three iron plates are fixed between the backrest brackets, T-shaped nuts are placed in arc holes of the angle adjusting pieces, and the bolts sequentially penetrate through the backrest brackets and the T-shaped nuts, so that the effect of angle locking is achieved.
As shown in fig. 3, the backrest height is adjusted: the small backrest square tube A is vertically inserted into the large backrest square tube B, the position is fixed by using the hand wheel Q, and the height range (taking the central height of the waist adjusting device as a reference) is 490-720 mm. The waist adjusting device, the upper back adjusting device and the neck adjusting angle adjusting mode are the same, when the waist adjusting device, the upper back adjusting device and the neck adjusting angle adjusting device are all adjusted to the required angle, the hand wheel Q penetrates through the backrest small square tube A and is fixed on the angle adjusting piece M, the hand wheel is sleeved and locked by the threaded ring, and the angle adjusting range is-30 degrees to 30 degrees.
As shown in fig. 4, the back curvature or irregular dent adjustment can be achieved by adjusting the screw protrusion amount of the stepless adjustment structural unit at each corresponding position.
In addition to dimensional and morphological adjustments, the device may perform a fixation of the facing material. A piece of cloth is fixed on the screw H by strong magnetism, and then the manufactured material is wrapped and fixed on the cloth by using a magic tape, so that the test can be performed.
Example 2
By combining the body pressure distribution test and the subjective comfort evaluation, the method uses a specially designed device experiment chair to adjust and obtain different waist pad form factors, captures the change of waist pad pressure and the comfort condition of a tested person, comprehensively analyzes and obtains the range of reasonable waist pad form design factors, and provides scientific basis for designing the comfortable waist pad form suitable for forward leaning sitting postures.
In the experiment, the waist pad morphology is researched to be decomposed into morphology characteristics of overlooking and left-looking angles, starting from two factors of overlooking protruding quantity and side-looking protruding quantity, in order to ensure the accuracy and the general applicability of the experiment, a double-factor experiment method is adopted, four levels of overlooking protruding quantity and four levels of side-looking protruding quantity are respectively crossed and experimented, the size of the contact area of the waist pad is designed to be 360mm or 150mm, objective test and subjective evaluation are combined, the pressure distribution of the waist is tested by utilizing a body pressure pad, a testee fills in a comfort seven-level scale each time, pressure data and subjective evaluation results are analyzed by a variance analysis method, and correlation is discussed, so that a more comfortable waist pad morphology design suggestion is obtained. The result shows that the overlooking protruding amount of the waist pad has obvious influence (p < 0.05) on the maximum pressure, the average pressure, the position of the maximum pressure point, the total pressure under the maximum pressure point, the maximum pressure gradient and the average pressure gradient in the body pressure distribution index, the side view protruding amount of the waist pad has obvious influence (p < 0.05) on the maximum pressure, the contact area and the total pressure on the maximum pressure point in the body pressure distribution index, and the synergistic effect of the two has no obvious influence on each parameter.
Claims (3)
1. The backrest adjusting device for the experiment chair is characterized by comprising a frame (1) and a backrest plate; the back board is provided with a stepless adjusting structure unit for realizing height, angle, depth and/or shape; the stepless adjusting structure unit is a threaded hole arranged on the backrest adjusting device (3) and a screw rod matched with the threaded hole for use; the frame (1) is a square iron frame, a front-back sliding locking mechanism (6) is arranged on the frame, so that the depth of the backrest bracket is adjusted, and a vertical sliding locking mechanism (5) is arranged on the frame, so that the height of the backrest bracket is adjusted; the back board comprises a waist adjusting iron plate (J), an upper back adjusting iron plate (K) and a neck adjusting iron plate (L) which are mutually independent, and more than 3 stepless adjusting structural units are arranged on the waist adjusting iron plate (J), the upper back adjusting iron plate (K) and the neck adjusting iron plate (L); the stepless adjusting structure unit is a threaded hole arranged on the iron plate and an adjustable screw (H) matched with the stepless adjusting structure unit; the waist adjusting iron plate (J), the upper back adjusting iron plate (K) and the neck adjusting iron plate (L) are respectively provided with an angle adjusting piece (M); the backboard is connected with the frame (1) through an up-down sliding locking mechanism (5) and a front-back sliding locking mechanism (6).
2. The experimental chair backrest adjustment apparatus according to claim 1, wherein: the up-and-down sliding locking mechanism (5) comprises a small backrest square tube (A) and a large backrest square tube (B), wherein the small backrest square tube (A) can be sleeved into the large backrest square tube (B) and is fixed through bolts, so that up-and-down sliding locking is realized.
3. The experimental chair backrest adjustment apparatus according to claim 1, wherein: the front-back sliding locking mechanism (6) comprises a sliding rail strip (D) and a sliding rail seat (E), wherein the sliding rail strip (D) is arranged on the sliding rail seat (E) and is fixed through bolts, so that front-back sliding locking is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762664.XA CN108741858B (en) | 2018-07-11 | 2018-07-11 | Backrest adjusting device for experiment chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810762664.XA CN108741858B (en) | 2018-07-11 | 2018-07-11 | Backrest adjusting device for experiment chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108741858A CN108741858A (en) | 2018-11-06 |
| CN108741858B true CN108741858B (en) | 2023-11-14 |
Family
ID=63973565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810762664.XA Active CN108741858B (en) | 2018-07-11 | 2018-07-11 | Backrest adjusting device for experiment chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108741858B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103005888A (en) * | 2012-12-06 | 2013-04-03 | 南京林业大学 | Experiment seat capable of bearing lower back parts of human bodies in different sitting postures synchronously |
| CN209499196U (en) * | 2018-07-11 | 2019-10-18 | 南京林业大学 | A kind of experimental chair recliner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100295354A1 (en) * | 2008-01-14 | 2010-11-25 | China Truer Ip | Chair adapted to adjust according to person's sitting-posture vertebral curve (i) |
| US9254042B2 (en) * | 2012-06-22 | 2016-02-09 | Michael V. Halliday | Backrest member including an adjustable platform for use with a chair |
-
2018
- 2018-07-11 CN CN201810762664.XA patent/CN108741858B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103005888A (en) * | 2012-12-06 | 2013-04-03 | 南京林业大学 | Experiment seat capable of bearing lower back parts of human bodies in different sitting postures synchronously |
| CN209499196U (en) * | 2018-07-11 | 2019-10-18 | 南京林业大学 | A kind of experimental chair recliner |
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| Publication number | Publication date |
|---|---|
| CN108741858A (en) | 2018-11-06 |
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