[0001] The present invention relates to a chair with desk combination. Particularly the present invention relates to an automatic sit-stand chair and standing desk assembly allows the user to do exercise while working in computer and to provide input commands to the computer and to change his/her posture while working thereby improving the physical activity of the computer user.

BACKGROUND OF INVENTION

[0002] Nowadays the number of people working on computer is very high all over the world. Similarly, various surveys show that sitting for long periods of time is not good for health. The utilization of standing desks allows the computer users have the opportunity to stand and work for a while. But continuously standing for a long period of time is not good for health. So, that the users of the computer have to pause their work many times in a day for adjusting the height of the standing desk. It causes discomfort to the users who are fully engaged in the work. Usually, when we pay attention to our work, we can easily forget about the sitting and standing process.

[0003] Some of the cited documents are listed below:

US20020137606 discloses a portable resistance exercise machine for a person that may include a seating pad permanently or detachably affixed to a support base upon which one or more resistance members are mounted for engagement by one or both feet or hands of the user. Preferably the resistance members include coil springs to provide the resistance and spring control guides to prevent overly sharp angular bending of the coil springs. The exercise device can be used while seated with the device placed under a desk or table having limited vertical dimensions.

US20020142898discloses a fully functional office furniture such as chair or desk, which are independently incorporating certain activity features. The chair and desk arrangements allow the user to perform beneficial exercise without leaving the chair or desk by utilizing movable exercise arms attached to adjustable variable resistance bearing assemblies attached to the chair seat or the desk to provide a full range of omni-directional exercises.

US5807212 discloses a leg exerciser that includes a leg-actuated exercise device sized to fit beneath the desk of a user, and an anchoring device attached to the exercise device. The anchoring device is adapted to be affixed to the user's chair. This allows the user to sit at his or her desk in the chair and actuate the leg exerciser while doing so.

[0004]Therefore, there is a need for an automatic sit-stand chair and standing desk assembly, which allows the user to do exercise while working in computer and to input commands to the computer and to change his/her posture while working thereby improving the physical activity of the computer user.

OBJECT OF INVENTION

[0005] The main object of the invention is to provide an automatic sit-stand chair and standing desk assembly, which allows the user to do exercise while working in computer and to provide input commands to the computer and to change his/her posture while working thereby improving the physical activity of the computer user by the provision of exercising input buttons instead of keyboard and mouse. [0006] Another object of the present invention is to provide an automatic sit- stand chair and standing desk assembly that allows to change the height of the standing desk along with chair automatically without causing any interruption to the user, who is doing his work on a computer with full concentration.

SUMMARY OF INVENTION

[0007] The automatic sit-stand chair and standing desk assembly with a mechanism thereof allows the user to do exercise while working in computer and to provide input commands to the computer and to change his/her posture while working thereby improving the physical activity of the computer user by the provision of exercising input buttons instead of keyboard and mouse. The sit- stand chair and standing desk assembly of the present invention allows the computer use to automatically change the posture from the sitting position to the standing position and vice versa continuously with a selected time period unknowingly even when fully engaged in his work. This process of continuously changing the posture of the computer user is very beneficial to the health of the computer user.

[0008] The automatic sit-stand chair and standing desk assembly consists of hand operable levers and foot operable pedals, which allows the user to do exercise while working in computer. The hand operable levers and foot operable pedals act as input command buttons instead of some keyboard and mouse.

[0009] The force applied by the user makes a hydraulic system to lift the entire framework i.e. it lifts the user ^' s chair along with the user from the sitting position to the standing position. Simultaneously, it lifts the desk also along with monitor, keyboard and mouse from sitting position to standing position. Screw- driven or gas driven or water driven or oil driven lifting jacks are utilized for this lifting system. The chair moves from the standing position to the sitting position by gravity and by opening and closing of some valves in the hydraulic system.

DETAILED DESCRIPTION OF INVENTION

[0010] The automatic sit-stand chair and standing desk assembly with a mechanism thereof allows the user to do exercise while working in computer and to give input commands to the computer and to change his/her posture while working thereby improving the physical activity of the computer user. The automatic sit-stand chair and standing desk assembly of the present invention comprises a movable sit-stand chair, an automatic height adjustable and horizontally adjustable standing desk, a hydraulically liftable framework, a command input mechanism and an exercising mechanism. The framework is liftable using a hydraulic lifting mechanism for lifting the sit-stand chair and standing desk according to different models and working modes. Height of a desk work area in the standing desk changes by the framework according to the different models and working modes, when the user moves to different postures at different statures.

[0011] As shown in Figure 1, the command input mechanism consists of hand operable levers (1) and foot operable pedals (2) that allow the computer user to provide input commands to a personal computer instead of utilizing few buttons of keyboard and mouse. The hand operable levers and the foot operable pedals act as input command buttons. The pedals and levers are provided at a foot rest area, at a hand rest area and at shoulder spots of an user of the personal computer. This features allows the user to feel like sitting in a driver seat of a vehicle. The pedals look alike the vehicle brake pedals and clutch pedals as shown in Figure 1 and Figure 2. The levers look alike hand brake type levers provided at the hand rest area as shown in the Figure 1 and Figure 2. The pedals and levers are utilized for doing both exercise and for providing input commands to the personal computer. For instance, left leg pedal is utilized as a left button in mouse, right leg pedal is utilized as a right button in mouse, left hand lever is utilized as an enter button and so on. The hydraulic lifting mechanism consists of a hydraulic oil driven tank, a pump equipment (5) along with jacks (3, 4) and associating pipes such as hydraulic rubber pipes for connecting pump and jacks (7), disconnectable rubber pipe for desk (8) and disconnectable rubber pipe for chair (9) for supplying oil to generate pressure for lifting the framework as shown in Figure 2, Figure 3 and Figure 4.

[0012] The utilization of the pedals and levers requires more physical activity of the user when compared to the utilization of the keyboard and the mouse. So, that the mechanism allows the user to work and exercise simultaneously, thereby improving the well-being of the user by enhancing health.

[0013] Generally, the vehicle driver focuses only on the road, but not on the brake pedals and gears while driving as he is used to perform the operation of pedals and levers unknowingly. Similarly, the user of this mechanism can be used to the operation of pedals and levers in a time period, so that they don't need to concentrate on the operation of pedals and levers and they can work in the PC easily, thus allowing the user to exercise in an oblivious manner.

[0014] The pedals and levers are additionally connected to the hydraulically liftable framework, which lifts the chair including the computer user and the desk work area including a monitor, a keyboard and a mouse simultaneously to an upper position as shown in the FIGURE 3 and FIGURE 4. Each operation of the pedals and levers generates some force, thereby lifting the framework. By the provision of framework, the user can obtain few unique postures in the middle of sitting stance to standing stance consequently. The invention offers relaxation to the user ^' s lumbar and nerves without notifying the user, when the user focuses his work in the computer thereby enabling posture change in an oblivious manner.

[0015] The exercising mechanism consists of hand operable levers (1), foot operable pedals (2), scroll bars, wheels and exercise center wires for performing exercise by the user.

[0016] As shown in Figure 4 and Figure 5, disconnectable hydraulic rubber pipes (10) are provided for connecting the chair and desk. An electronic signal producing sensor equipment (11) is provided for generating input commands to the personal computer by pedals and levers. Electric wires (12) are provided for connecting the sit-stand chair to the desk work area and to a central processing unit (CPU) of the personal computer. Sensors are provided for performing personalized height settings.

[0017] The system permits to change the function of the key for the pedals and levers. When the user wishes to change the function of the lever from an enter key to a space bar key or a number key, the client can have the option to do this process by just changing the settings in the personal computer. Also, the pressure of the pedals, levers, scroll bars are adjustable. Time span of the stance changing is customizable. The chair and desk work area are connected to a CPU of the personal computer. [0018] According to the present invention, the assembly is available to the general public in various models and in various prices. The models of the invention are

A. Manual lifting model;

B. Power lifting model;

C. Manual and power lifting model;

D. Spring workout model;

E. Power generating model.

[0019] A. Manual lifting model: The manual lifting model consists of a sit-stand chair and a desk with work area including of a monitor, a keyboard and a mouse. In manual lifting model, the entire framework is liftable and the posture is changeable by the force, which produced by the exercise of the user. The manual lifting model does not contain any power motor to perform lifting and posture changing operations. So, that the manual lifting model is available at low cost. The manual lifting model is appropriate for an user, who requires the product at most minimal cost.

[0020] B. Power lifting model: The power lifting model consists of electric motors and hydraulic system or screw system for lifting the entire framework i.e. lifting the entire framework means lifting of sit-stand chair alongside the personal computer user and the desk work area including the screen, keyboard and mouse simultaneously. The power lifting model does not contain pedals and levers as shown in the FIGURES 2,3 and 4.By the provision of lifting framework, the client can get few unique postures in the middle of sitting posture to standing posture consequently. For instance, sitting posture, semi sitting posture(half sitting and half standing), scooter desk pose, pogo seat posture, mogo seat posture and standing posture. Sitting posture: At this posture, chair and desk obtains their minimum height by without requiring any expansion by jacks and the foot rest area obtains longer distance from chair as shown in the FIGURE 2. Half sitting and half standing (pogo chair) posture: At this posture, chair and desk obtains some height by some expansion of jacks and the foot rest area get some closer to the chair as shown in the FIGURE 3. At this stage, the chair and the desk can be horizontally adjusted by utilization of extra hydraulic jacks to maintain the comfort of the user. Standing posture: At this posture, the chair and the desk obtains maximum height by fully expanding the jacks and the foot rest area gets closest to the chair as shown in the FIGURE 4. At this stage, the chair and the desk can be adjusted horizontally by utilization of extra hydraulic jacks to maintain the comfort of the user.

[0021] The power lifting model is appropriate for an user, who needs to lift the framework and to change the working posture while utilizing the personal computer in the office without requiring the need to exercise. The power lifting model provides medical benefits as it allows to change the stance while utilizing the PC in the office. The power lifting model is suitable for workplace table, which comprises a main table with an official seat at one side and some visitor guest seats at another side of the table. The power lifting model allows to lift the seats and the table and to change the position of the stance simultaneously. According to the present invention, the mechanism allows to utilize one or more jacks to the desk and one or more jacks to the chair.

[0022] C. Manual and power lifting model: The manual and power lifting model consists of both manual lifting and power lifting components, and provides an opportunity to the user to choose any of the model as per the requirement. The manual and power lifting model is costly and suitable for an user, who concentrates more on their well-being irrespective of the cost.

[0023]Spring workout model: Thespringmodel utilizes spring driven levers and pedals rather than hydraulic pressure driven levers and pedals and this model does not consists any lifting mechanism. So, the user can do exercise with this model , and can able to give input commands to the PC. But the user does not get any posture changing facility. By this model the user can do exercise in the sitting posture only. The spring model is least expensive to perform exercise while utilizing the PC.

[0024] E. Power generating model: The power generating model generates power when the user performs exercise by utilizing dynamos.

[0025]MODES: The assembly is operable in 5 different modes and allows the user to select a mode from 5 different types of modes. The modes are listed as follows: a. Normal mode b. Exercise-posture change-input mode c. Exercise-posture change mode d. Exercise-input mode e. Only Exercise mode

[0026] a. Normal Mode:

The entire lifting framework works in an ordinary condition, when the PC user selects the normal mode. The mechanism does not allow the user to perform exercise, to lift and change the posture and to generate input commands by the levers and pedals. [0027] b. Exercise-posture change-input mode:

When the PC user chooses the exercise-posture change-input mode, an exercise mode is activated, so that the user is allowed to perform exercise by pushing and pulling of pedals, levers, exercise center wires, scroll bars and wheels in the exercise mode. The exercise mechanism generates a force, which actuates a posture changing module, which allows the user to move to various types of stances and statures from the sitting stance to standing stance gradually by utilizing the water or oil powered lifting framework. A display work area moves to a vertical position or a horizontal position simultaneously by the pressure driven framework to coordinate the stature and position of the seat. The command input mechanism provides instructions to the personal computer by the utilization of pedals and levers.

[0028] c. Exercise-posture change mode:

When the user chooses the exercise-posture change mode, the exercise module is actuated to allow the user to perform exercise. In this mode, posture changing module is also actuated, so that the user is allowed to obtain various kinds of stances while utilizing the PC. The exercise-posture change mode does not allow the user to provide instructions to the PC using the pedals and levers. The user can provide instructions to the PC by utilizing the keyboard and mouse. The exercise-posture change mode is appropriate for a client, who requires to change the posture and to perform exercise while she getting a charge out of a video at the PC.

[0029] d. Exercise - input mode:

When the exercise-input mode is chosen, the exercise mechanism is actuated and the posture changing module is not actuated. In this mode, the user can provide instructions to the PC using the pedals, levers, exercise center wires, scrollbars and wheels. The exercise module allows to lift the framework to change the pose but the sitting stance remains constant by a valve evolving switch. This mode is appropriate for an user, who wants to do exercise just in a sitting stance while utilizing the PC.

[0030] e. Only exercise mode:

When the only exercise mode is chosen, the exercise component is actuated to allow the user to perform exercise. In this mode, posture changing module does not actuate. The only exercise mode does not allow to provide instructions to the PC i.e. the exercise done by the client does not make any change in the operation of the PC. The exercise module allows to lift the framework to change the pose but the sitting stance remains constant by the valve evolving switch. The only exercise mode is appropriate for an user, who wants to do exercise just at the sitting stance while getting a charge out of a you tube video in the PC.

[0031] Table 1 explains different modes of the automatic sit-stand chair and standing desk assembly. [0032]The hydraulic lifting mechanism is connected to the personal computer by some electric wires. And it allows the user to select the time period of sitting standing cycle. And also allows the user to select any one mode from different type of modes. The disconnectable hydraulic rubber pipes allows to separate the chair and the desk, so that the chair and the desk can be transported separately and reassembled wherever it required.

BRIEF DESCRIPTION OF DRAWINGS

[0033]Figure 1 shows a side view of an automatic sit-stand chair and standing desk assembly with hand operable levers (1) and foot operable pedals (2). [0034]Figure 2 shows a side view of the automatic sit-stand chair and standing desk assembly of the present invention in a sitting posture.

[0035]Figure 3 shows a side view of the automatic sit-stand chair and standing desk assembly of the present invention in a semi sitting posture (half sitting and half standing).

[0036]Figure 4 shows a side view of the automatic sit-stand chair and standing desk assembly of the present invention in a standing posture.

[0037]Figure 5 shows a side view of the sit-stand chair of the present invention comprising the hand operable levers, the foot operable pedals, a jack for sit- stand chair, a jack for desk, an electronic signal producing sensor equipment and electric wires.

REFERENCE NUMERALS

1. Hand operable levers

2. Foot operable pedals

3. Jack for sit-stand chair

4. Jack for sit-stand desk 5. Motors and hydraulic pumping equipment

6. Movable foot rest area

7. Hydraulic rubber pipes for connecting pump and jacks

8. Disconnectable rubber pipe for desk

9. Disconnectable rubber pipe for chair

10. Disconnectable device of hydraulic rubber pipes for connecting chair and desk

11. Electronic signal producing sensor equipment

12. Electric wires