CA2391639C - Ergonomic operator's chair - Google Patents
Ergonomic operator's chair Download PDFInfo
- Publication number
- CA2391639C CA2391639C CA 2391639 CA2391639A CA2391639C CA 2391639 C CA2391639 C CA 2391639C CA 2391639 CA2391639 CA 2391639 CA 2391639 A CA2391639 A CA 2391639A CA 2391639 C CA2391639 C CA 2391639C
- Authority
- CA
- Canada
- Prior art keywords
- support elements
- chair
- pedestal
- seat
- backrest
- 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
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000036449 good health Effects 0.000 abstract description 2
- 208000000875 Spinal Curvatures Diseases 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000003867 tiredness Effects 0.000 description 2
- 208000016255 tiredness Diseases 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
An ergonomic operator's chair relates to chairs for special purposes, and more particularly, to computer operator's chair which is ergonomically designed to increase the capacity for work, comfort and keeping an operator in good health condition. The chair includes a seat, a backrest and a pedestal. The chair is also equipped with a pair of support elements symmetrically positioned on each side of the seat and fixedly attached onto the backrest. The support elements are made in the circular arc form and installed vertically on the pedestal having possibility to move along the pedestal relative to the center of the above circle up to the preset angle. The seat is pivotally coupled to each support element and is constantly kept in a horizontal position while both support elements are moved along the pedestal. The chair has a driving gear to move the support elements along the pedestal and to fix them in the preset position. It may be equipped with an automatic system, which makes it possible to automatically change the turning angle of the support elements.
Description
1 r ERGONOMIC OPERATOR'S CHAIR
TECHNICAL FIELD
The present invention relates generally to ergonomic chairs for special purposes, and more particularly, to a computer operator's chair.
BACKGROUND OF THE INVENTION
It is known that operator's chair consists of a seat, a backrest and a pedestal. Such chair is described, for instance, in Russian Patent No.1,659,001 which was issued on June 30, 1991. However, the known chair design disregards the peripheral equipment location as well as the influence of a gravitational field vector on an individual-operator's fitness to work and health condition.
It is worth to mention that irrational design of a working seat and neglect of the major postulates of ergonomics lead to disorders in health condition, for example, to spinal curvature, inferior limb vessels disease, and difficulties with venous blood return to the heart.
SUMMARY OF THE INVENTION
The present invention provides an operator's chair which is ergonomically designed to increase the capacity for work, comfort and, at the same time, keep an operator in good health condition.
In a general term, the present invention is used to provide a chair, consisting of a seat, a backrest and a pedestal, with two support elements symmetrically positioned on each side of the backrest and the seat which are fixedly attached to the backrest; an adjustable headrest installed on the backrest; a footrest pivotally coupled to the front part of the seat that makes it -~-possible to turn it at a preset angle relative to a horizontal plane, as well as to fix it at a stationary position; a pair of armrests fixedly attached to the respective support; an equipment desk for peripheral equipment removable coupled to the ends of the armrests; a mounting bracket fixing a visual examination object; a holder and an illuminating lamp pivotally coupled to this holder.
Each support element is made as an arc form and is formed by an arc of a circle having a central angle within 250 and 270 degrees. These support elements are vertically installed on a pedestal with the possibility to move along the circle at the preset angle. The seat is pivotally attached to each of the support elements and is permanently kept horizontally while the support elements move relative to the pedestal. The mounting bracket and the holder are attached at the upper parts of the support elements in a preset position.
The chair may have also a driving gear that move the support elements relative to the pedestal and fix them in a preset position.
It is recommended to provide the chair with an automatic system capable to automatically change the turning angle of the support elements. This system may comprise position pickups to maintain control over an operator's position, a microprocessor and an actuator cinematically connected with the driving gear. It is advisable to use pressure sensors as pickups. They can be installed in the headrest, in the upper and lower part of the backrest, in the seat and in each of the armrests.
BRIEF DESCRIPTION OF THE DRAWINGS
Having thus generally described the nature of the invention, reference will now be made to the preferred embodiment thereof and the accompanying drawings, in which:
FIG. 1 is a side view of'the chair in accordance with the preferred embodiment of the invention, showing the operator's sitting position;
FIG. 2 is a side view of the chair, showing the operator's bending position;
FIG. 3 is a side view of the chair, showing the operator's reclining position;
FIG. 4 is a side view of the chair, showing the operator's lying position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1 an ergonomic operator's chair comprises a seat 1, a backrest 2 and a pedestal 3. The chair is also equipped with a pair of support elements 4 symmetrically positioned on each side of the backrest 2 and the seat 1 and fixedly attached onto the backrest 2, as well as with a headrest 5 which is installed adjustable on the backrest 2 and with an L-shaped footrest 6 pivotally coupled to the front part of the seat 1 that makes it possible to turn the footrest 6 at a preset angle relative to a horizontal plane and to fix it into a certain position.
The chair has also a pair of armrests 7 each one fixedly coupled to each of the respective support elements 4, an equipment desk 8 for peripheral equipment 9 (keyboard, mouse etc.) which is removable coupled to the armrest ends. The chair is also equipped with a mounting bracket 10 to mount a visual examination object (monitor) 11, a holder 12 and an illumination lamp 13 pivotally coupled to the holder 12. Support elements 4 are made in the arc form and each of them has been formed by a circular arc having its central angle ranging from 250 to 270 degrees. The support elements 4 are installed vertically on the pedestal 3 with the possibility to move relative to the pedestal 3 along the circle to the preset angle. The turning angle of the support elements 4 is about 90... 110 degrees.
TECHNICAL FIELD
The present invention relates generally to ergonomic chairs for special purposes, and more particularly, to a computer operator's chair.
BACKGROUND OF THE INVENTION
It is known that operator's chair consists of a seat, a backrest and a pedestal. Such chair is described, for instance, in Russian Patent No.1,659,001 which was issued on June 30, 1991. However, the known chair design disregards the peripheral equipment location as well as the influence of a gravitational field vector on an individual-operator's fitness to work and health condition.
It is worth to mention that irrational design of a working seat and neglect of the major postulates of ergonomics lead to disorders in health condition, for example, to spinal curvature, inferior limb vessels disease, and difficulties with venous blood return to the heart.
SUMMARY OF THE INVENTION
The present invention provides an operator's chair which is ergonomically designed to increase the capacity for work, comfort and, at the same time, keep an operator in good health condition.
In a general term, the present invention is used to provide a chair, consisting of a seat, a backrest and a pedestal, with two support elements symmetrically positioned on each side of the backrest and the seat which are fixedly attached to the backrest; an adjustable headrest installed on the backrest; a footrest pivotally coupled to the front part of the seat that makes it -~-possible to turn it at a preset angle relative to a horizontal plane, as well as to fix it at a stationary position; a pair of armrests fixedly attached to the respective support; an equipment desk for peripheral equipment removable coupled to the ends of the armrests; a mounting bracket fixing a visual examination object; a holder and an illuminating lamp pivotally coupled to this holder.
Each support element is made as an arc form and is formed by an arc of a circle having a central angle within 250 and 270 degrees. These support elements are vertically installed on a pedestal with the possibility to move along the circle at the preset angle. The seat is pivotally attached to each of the support elements and is permanently kept horizontally while the support elements move relative to the pedestal. The mounting bracket and the holder are attached at the upper parts of the support elements in a preset position.
The chair may have also a driving gear that move the support elements relative to the pedestal and fix them in a preset position.
It is recommended to provide the chair with an automatic system capable to automatically change the turning angle of the support elements. This system may comprise position pickups to maintain control over an operator's position, a microprocessor and an actuator cinematically connected with the driving gear. It is advisable to use pressure sensors as pickups. They can be installed in the headrest, in the upper and lower part of the backrest, in the seat and in each of the armrests.
BRIEF DESCRIPTION OF THE DRAWINGS
Having thus generally described the nature of the invention, reference will now be made to the preferred embodiment thereof and the accompanying drawings, in which:
FIG. 1 is a side view of'the chair in accordance with the preferred embodiment of the invention, showing the operator's sitting position;
FIG. 2 is a side view of the chair, showing the operator's bending position;
FIG. 3 is a side view of the chair, showing the operator's reclining position;
FIG. 4 is a side view of the chair, showing the operator's lying position.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1 an ergonomic operator's chair comprises a seat 1, a backrest 2 and a pedestal 3. The chair is also equipped with a pair of support elements 4 symmetrically positioned on each side of the backrest 2 and the seat 1 and fixedly attached onto the backrest 2, as well as with a headrest 5 which is installed adjustable on the backrest 2 and with an L-shaped footrest 6 pivotally coupled to the front part of the seat 1 that makes it possible to turn the footrest 6 at a preset angle relative to a horizontal plane and to fix it into a certain position.
The chair has also a pair of armrests 7 each one fixedly coupled to each of the respective support elements 4, an equipment desk 8 for peripheral equipment 9 (keyboard, mouse etc.) which is removable coupled to the armrest ends. The chair is also equipped with a mounting bracket 10 to mount a visual examination object (monitor) 11, a holder 12 and an illumination lamp 13 pivotally coupled to the holder 12. Support elements 4 are made in the arc form and each of them has been formed by a circular arc having its central angle ranging from 250 to 270 degrees. The support elements 4 are installed vertically on the pedestal 3 with the possibility to move relative to the pedestal 3 along the circle to the preset angle. The turning angle of the support elements 4 is about 90... 110 degrees.
Support elements 4 may interact with the pedestal 3 by means of rotating rolls 14. The seat I is pivotally coupled to each support element and is constantly kept in a horizontal position while both support elements 4 are moved relative to the pedestal 3. The mounting bracket 10 and the holder 12 are fixed to the upper parts of the support elements 4.
Besides, the chair may have a lock 15 to fix the support elements 4 in a preset position. The chair may also have a driving gear to move the support elements 4 relative to the pedestal 3 and to fix them in the preset position. It may be equipped with an automatic system, which makes it possible to automatically change the turning angle of the support elements 4.
This system may consist of pickups, providing the operator's position control, a microprocessor and an actuator kinematically connected with the driving gear. It is advisable to use sensor pressure pickups. They may be installed in the headrest 5, in the upper and lower part of the backrest 2, in the seat I
and in each of the armrests 7.
The operator's chair operates as follows. Before operation an operator adjusts the chair into initial position (sitting position, FIG. 1), takes the equipment desk 8 off the armrests 7, sits into the chair and places his feet on the footrest 6. Then the operator adjusts the position of the backrest 2, moving the arc-shape support elements 4 relative to the pedestal 3, adjusts the height of the headrest 5 and a bending angle of the footrest, installs the equipment desk 8 on both armrests 7, places the peripheral equipment (keyboard) 9 in the most optimum operation zone. The visual examination object (monitor) 11 is mounted with the help of the mounting bracket 10 at the optimum distance. The direction and light intensity are regulated by the holder 12 and the illumination lamp 13. Such position of the operator in the chair provides comfort conditions of work.
After working for a certain period of time (depending on psychophysiologic and physical condition of the operator, intensity and attractiveness of work) as well as due to the influence of the gravitational field the operator begins to feel increasing tiredness. This makes him/her to change his/her body's position (in order to change the direction of the gravitational field's influence on the body). In order to shift the gravitational load it is necessary to change the position of the backrest (FIG. 2, 3, 4). In each changed position such external parameters as distance between the operator's eyes and the visual examination object, angle of view, distance between operator's eyes and peripheral equipment, direction and intensity of light, as well as spinal curvature, position and incline of the operator's head remain stable.
With the help of the automatic system all parameters that have been measured (in the form of electric signals) are directed to the microprocessor, which processes the data relating to ergonomic characteristics stored in the microprocessor and an output signal is transmitted via the actuator to the driving gear which moves both support elements 4 relative to the pedestal 3.
The above technical result is due to the fact that the operator's tiredness causes redistribution of the gravitational field influence on the operator by means of changing his/her body's position, while preset optimum parameters of the system "man - machine" remain stable.
Besides, the chair may have a lock 15 to fix the support elements 4 in a preset position. The chair may also have a driving gear to move the support elements 4 relative to the pedestal 3 and to fix them in the preset position. It may be equipped with an automatic system, which makes it possible to automatically change the turning angle of the support elements 4.
This system may consist of pickups, providing the operator's position control, a microprocessor and an actuator kinematically connected with the driving gear. It is advisable to use sensor pressure pickups. They may be installed in the headrest 5, in the upper and lower part of the backrest 2, in the seat I
and in each of the armrests 7.
The operator's chair operates as follows. Before operation an operator adjusts the chair into initial position (sitting position, FIG. 1), takes the equipment desk 8 off the armrests 7, sits into the chair and places his feet on the footrest 6. Then the operator adjusts the position of the backrest 2, moving the arc-shape support elements 4 relative to the pedestal 3, adjusts the height of the headrest 5 and a bending angle of the footrest, installs the equipment desk 8 on both armrests 7, places the peripheral equipment (keyboard) 9 in the most optimum operation zone. The visual examination object (monitor) 11 is mounted with the help of the mounting bracket 10 at the optimum distance. The direction and light intensity are regulated by the holder 12 and the illumination lamp 13. Such position of the operator in the chair provides comfort conditions of work.
After working for a certain period of time (depending on psychophysiologic and physical condition of the operator, intensity and attractiveness of work) as well as due to the influence of the gravitational field the operator begins to feel increasing tiredness. This makes him/her to change his/her body's position (in order to change the direction of the gravitational field's influence on the body). In order to shift the gravitational load it is necessary to change the position of the backrest (FIG. 2, 3, 4). In each changed position such external parameters as distance between the operator's eyes and the visual examination object, angle of view, distance between operator's eyes and peripheral equipment, direction and intensity of light, as well as spinal curvature, position and incline of the operator's head remain stable.
With the help of the automatic system all parameters that have been measured (in the form of electric signals) are directed to the microprocessor, which processes the data relating to ergonomic characteristics stored in the microprocessor and an output signal is transmitted via the actuator to the driving gear which moves both support elements 4 relative to the pedestal 3.
The above technical result is due to the fact that the operator's tiredness causes redistribution of the gravitational field influence on the operator by means of changing his/her body's position, while preset optimum parameters of the system "man - machine" remain stable.
Claims (5)
1. An ergonomic operator's chair, comprising:
a seat;
a backrest and a pedestal, which is equipped with a pair of support elements symmetrically positioned on each side of said backrest and said seat and fixedly attached to said backrest;
an adjustable headrest, which is installed onto said backrest;
a footrest pivotally coupled to the front part of said seat that makes it possible to turn said footrest at a preset angle relative to the horizontal plane and to fix said footrest into a certain position;
a pair of armrests each one fixedly coupled to each of said respective support elements;
an equipment desk for peripheral equipment removable coupled to the ends of said armrests;
a mounting bracket to mount a visual examination object;
a holder and an illuminating lamp pivotally coupled to said holder;
each of said support elements is made in the form of an arc and has been formed by a circular arc having its central angle ranging from 250 to 270 degrees; wherein said support elements are installed vertically on said pedestal with the possibility to move along the circle by means of rolls;
said seat is pivotally attached to each of said support elements and is constantly kept in a horizontal position while said both support elements move along said pedestal, and said mounting bracket and said holder are fixed to the upper parts of the arcs of said support elements.
a seat;
a backrest and a pedestal, which is equipped with a pair of support elements symmetrically positioned on each side of said backrest and said seat and fixedly attached to said backrest;
an adjustable headrest, which is installed onto said backrest;
a footrest pivotally coupled to the front part of said seat that makes it possible to turn said footrest at a preset angle relative to the horizontal plane and to fix said footrest into a certain position;
a pair of armrests each one fixedly coupled to each of said respective support elements;
an equipment desk for peripheral equipment removable coupled to the ends of said armrests;
a mounting bracket to mount a visual examination object;
a holder and an illuminating lamp pivotally coupled to said holder;
each of said support elements is made in the form of an arc and has been formed by a circular arc having its central angle ranging from 250 to 270 degrees; wherein said support elements are installed vertically on said pedestal with the possibility to move along the circle by means of rolls;
said seat is pivotally attached to each of said support elements and is constantly kept in a horizontal position while said both support elements move along said pedestal, and said mounting bracket and said holder are fixed to the upper parts of the arcs of said support elements.
2. A chair as claimed in claim 1 further comprising a lock to fix said support elements in a preset position.
3. A chair as claimed in claim 1 further comprising a driving gear to move said support elements along said pedestal and to fix them in the preset position.
4. A chair as claimed in claim 3 further comprising an automatic system to automatically change the turning angle of said support elements consisting of pickups to control the operator's position, a microprocessor and an actuator, which is kinematically_connected with said driving gear.
5. A chair as claimed in claim 4 wherein said pickups are pressure sensors installed in said headrest, in an upper and lower part of said backrest, in said seat and in each of said armrests.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2001122628A RU2209022C2 (en) | 2001-08-13 | 2001-08-13 | Ergonomic armchair for operator |
| RU2001122628 | 2001-08-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2391639A1 CA2391639A1 (en) | 2003-02-13 |
| CA2391639C true CA2391639C (en) | 2007-07-03 |
Family
ID=20252561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2391639 Expired - Fee Related CA2391639C (en) | 2001-08-13 | 2002-07-15 | Ergonomic operator's chair |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2391639C (en) |
| RU (1) | RU2209022C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956431A (en) * | 2020-08-28 | 2020-11-20 | 上海珐偲生物科技工程有限公司 | Personnel isolation bin |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2290157C2 (en) * | 2005-03-04 | 2006-12-27 | Леонид Андреевич Косик | Device for reducing negative influence of gravity field of earth on human organism |
| IES20090147A2 (en) * | 2009-02-24 | 2011-02-16 | Colm Campbell | A chair |
| US8087724B2 (en) | 2009-08-10 | 2012-01-03 | Gravitonus Inc. | Ergonomic computer chair |
| RU193548U1 (en) * | 2019-08-16 | 2019-11-01 | Алексей Евгеньевич Козлов | COMPUTER CHAIR |
| US11219311B1 (en) | 2020-10-06 | 2022-01-11 | James Mark Kondziela | Ergonomic multi-positionable workstation |
| RU2746864C1 (en) * | 2020-10-09 | 2021-04-21 | Сергей Владимирович Кидаков | Observation chair carriage |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1665863A3 (en) * | 1989-09-13 | 1991-07-23 | Г.А.Староверов, В.В.Обрезчиков, В.А.Щеглов, Э.А.Крюк и Э.В.Хандюков | Seat |
| RU2068646C1 (en) * | 1992-05-18 | 1996-11-10 | Киевский Инженерно-Строительный Институт | Operator's chair |
| US5489142A (en) * | 1994-04-13 | 1996-02-06 | Mathieu; Gerald N. | Astronomy console |
| AU701378B2 (en) * | 1995-06-16 | 1999-01-28 | Christopher Andrew Hedley Brown | Reclining support for astronomy observations |
| FR2785163B1 (en) * | 1998-10-29 | 2001-01-19 | Ecia Equip Composants Ind Auto | MULTI-ADJUSTABLE SEAT |
-
2001
- 2001-08-13 RU RU2001122628A patent/RU2209022C2/en not_active IP Right Cessation
-
2002
- 2002-07-15 CA CA 2391639 patent/CA2391639C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111956431A (en) * | 2020-08-28 | 2020-11-20 | 上海珐偲生物科技工程有限公司 | Personnel isolation bin |
| CN111956431B (en) * | 2020-08-28 | 2021-10-12 | 青岛大学附属医院 | Personnel isolation bin |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2209022C2 (en) | 2003-07-27 |
| CA2391639A1 (en) | 2003-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4552404A (en) | Neutral body posture chair | |
| US6923503B2 (en) | Chair with movable seat and backrest | |
| RU2199258C1 (en) | Seating device | |
| US7625046B2 (en) | Task chair | |
| US5098160A (en) | Ergonomic seating system apparatus | |
| US7093900B1 (en) | Seat | |
| US7484803B2 (en) | Chair, especially and office or work chair | |
| JPS5929244B2 (en) | adjustable back chair | |
| US4865382A (en) | Surgeon's operating stool | |
| CA2391639C (en) | Ergonomic operator's chair | |
| US12310502B2 (en) | Automated task chair | |
| KR101990314B1 (en) | Chair assembly for dentist and Unit chair system having the same | |
| US11213136B2 (en) | Half-sitting stool with supported sit bone | |
| AU3750193A (en) | Office chair | |
| US20040129275A1 (en) | Treatment bed, treatment apparatus and treatment device | |
| RU2290157C2 (en) | Device for reducing negative influence of gravity field of earth on human organism | |
| RU2001122628A (en) | ERGONOMIC CHAIR OF THE OPERATOR | |
| EP0793929B1 (en) | Adjustable office chair | |
| RS63434B1 (en) | ERGONOMICALLY ADJUSTED CHAIRS IN CRANE CABINS | |
| KR102817913B1 (en) | medical chair | |
| GB2627518A (en) | Reclinable seating assembly and method of use | |
| CN120391817A (en) | A multifunctional posture-adjustable ergonomic office desk and chair | |
| WO2021180764A1 (en) | Chair | |
| Vital | Product reviews | |
| Romano | Athletic accommodations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20130716 |