Exercise and rehabilitation apparatus for wheelchair users and method using same

Abstract

The present invention relates to an exercise and rehabilitation apparatus for wheelchair users and, more specifically, to an exercise and rehabilitation apparatus for wheelchair users, which has attachment, detachment, fixing, and release functions and can be used in conjunction with virtual reality content such that wheelchair users can effectively exercise and receive rehabilitation training without using aerobic exercise equipment such as treadmills or moving to separate exercise equipment.

Description

Exercise and rehabilitation devices for wheelchair users and how to use them

[0001] The present invention relates to an exercise and rehabilitation device for wheelchair users, and more specifically, to an exercise and rehabilitation device for wheelchair users equipped with detachable, fixed, and unlocking functions that can be used in conjunction with virtual reality content, so that wheelchair users can perform effective exercise and rehabilitation training without using aerobic exercise equipment such as treadmills or moving to separate exercise equipment.

[0002] Conventional exercise and rehabilitation training methods for wheelchair users faced serious accessibility issues. Most exercise equipment was designed for able-bodied individuals, making it extremely inconvenient and sometimes even dangerous for wheelchair users to use. In particular, aerobic exercise equipment such as treadmills and stationary bikes were practically out of reach for wheelchair users.

[0003] For example, to use conventional treadmills, wheelchair users had to disembark with the assistance of a caregiver and transfer to the treadmill. This process carried a very high risk of falls and caused serious issues regarding low self-esteem. Furthermore, most wheelchair users have weak lower limb muscles, making it difficult to maintain balance on the treadmill belt, which made it virtually impossible to use.

[0004] The same was true for bicycles. Transferring from a wheelchair to a standard bicycle was extremely difficult, and even if users managed to ride, those with insufficient lower limb strength were unable to pedal. As a result, many wheelchair users were unable to engage in proper aerobic exercise, leaving them at risk of deteriorating health.

[0005] Existing rehabilitation methods for wheelchair users were highly inefficient. Most rehabilitation training consisted of monotonous and repetitive movements, leading to a significant decline in users' interest and motivation. Consequently, it was common for many wheelchair users to abandon their rehabilitation training midway.

[0006] Furthermore, it was difficult to precisely adjust the intensity of rehabilitation training to suit an individual's condition. Since most rehabilitation devices adjusted resistance mechanically, it was impossible to immediately change exercise intensity based on the user's condition or progress. Consequently, exercises that were too easy were sometimes ineffective, while exercises that were too strenuous posed a risk of injury.

[0007] Furthermore, it was difficult to objectively measure and record the progress of rehabilitation training. In most cases, reliance had to be placed on the rehabilitation therapist's subjective observation, which limited the ability to accurately assess the user's progress and establish appropriate training plans.

[0008] Although virtual reality (VR) technology has recently begun to be introduced into rehabilitation training, VR rehabilitation systems for wheelchair users were virtually non-existent. Most existing VR rehabilitation systems were designed based on standing or walking movements, making them unsuitable for wheelchair users.

[0009] As a result, wheelchair users were unable to benefit from the latest technology. They were missing out on advantages such as immersive exercise experiences, gamified rehabilitation training, and real-time feedback that VR technology could provide. This became a factor that significantly reduced the effectiveness of rehabilitation training.

[0010] Most conventional rehabilitation training methods had to be conducted in fixed locations. This severely restricted the mobility of wheelchair users. For example, there was the inconvenience of having to use a specialized vehicle every time to get to a rehabilitation center, and in many cases, rehabilitation training had to be suspended entirely during travel or business trips.

[0011] Furthermore, exercising outdoors was nearly impossible. Wheelchair users could not enjoy outdoor activities such as jogging and cycling, which are easily accessible to the general public. This had a negative impact not only on physical health but also on mental well-being.

[0012] Existing rehabilitation training systems have failed to adequately reflect individual characteristics and needs. Since most training programs are standardized, they have been unable to take into account individual physical conditions, the type and severity of the disease, and rehabilitation goals in detail. As a result, the effectiveness of training has decreased, and in some cases, side effects have occurred due to inappropriate exercise.

[0013] Existing rehabilitation training methods suffered from serious problems regarding user motivation and consistency. Since most training felt monotonous and boring, many users frequently gave up midway. This lack of motivation was particularly severe when long-term rehabilitation was required.

[0014] Furthermore, users often felt frustrated because it was difficult to visibly verify the effects of the training. Due to the lack of systems to objectively measure and visualize minute progress, users frequently felt that their efforts were in vain.

[0015] The lack of social interaction was also a problem. Since most rehabilitation training was conducted individually, it was difficult to be motivated through interaction with other users or healthy competition. This significantly reduced the enjoyment and sustainability of the training.

[0016] In existing systems, it was nearly impossible to systematically collect and analyze user training data. In most cases, reliance had to be placed on manual records by rehabilitation specialists, resulting in poor data accuracy and consistency. Consequently, it was difficult to accurately assess users' long-term progress and establish scientific training plans based on this information.

[0017] Furthermore, there were limitations in deriving meaningful insights based on the collected data. Since big data analysis or pattern analysis utilizing artificial intelligence technology was not performed, it was difficult to develop personalized training methods or research new rehabilitation techniques.

[0018] Due to the various problems mentioned above, there was an urgent need for the development of an innovative exercise and rehabilitation training system for wheelchair users.

[0019] The present invention aims to provide an exercise and rehabilitation device for a wheelchair user that allows the user to perform effective exercise and rehabilitation training without moving to a separate exercise device, has a structure that allows the user to easily attach and detach the device, and conveniently switch between daily wheelchair use and exercise modes.

[0020] Furthermore, the present invention aims to provide an exercise and rehabilitation device for wheelchair users that implements a resistance system precisely adjustable according to the user's physical condition and rehabilitation goals, continuously links virtual reality content to exercise and rehabilitation training to stimulate the user's interest and motivation, enables scientific and systematic training management by collecting and analyzing the user's exercise data in real time, and allows for real-time monitoring of the user's physical condition and response to emergency situations.

[0021] To achieve the above objective, one embodiment of the present invention comprises: a fixed plate fixedly coupled to the central axis of the wheel; a rotation control unit rotatably connected to the fixed plate through an axle fixing bearing; a hand rim body fixedly coupled to the outer surface of the rotation control unit and capable of being grasped and rotated by a user's hand; a speed control motor installed on the fixed plate to control the rotation of the wheel; a rechargeable battery embedded inside the hand rim body to supply power to the speed control motor; a permanent magnet installed on the rotation control unit and, correspondingly, a rotation direction sensor installed on the hand rim body to detect the rotation direction and speed of the hand rim body; and a timer that stops the operation of the speed control motor when the rotation of the hand rim body is interrupted for a predetermined period of time or longer; and controls the speed control motor according to the rotation direction and speed of the hand rim body received from the rotation direction sensor.

[0022] The above hand rim body can be attached to and detached from the wheel by means of electromagnetic action or mechanical fastening, and further includes a resistance device using an electromagnetic brake or mechanical friction, and the resistance device variably controls the force required to operate the hand rim by linking with virtual reality content.

[0023] The present invention comprises the steps of: installing a torque sensor for measuring rotational force and an encoder for measuring speed on the hand rim device; monitoring the user's exercise status in real time through the torque sensor and the encoder; generating an exercise program suitable for the user and setting the resistance value of the hand rim based on the monitoring results; warning of excessive exercise and inducing appropriate rest for the user's safety (automatically adjusting exercise intensity through real-time biosignal monitoring and recommending rest or adjusting the resistance value according to the user's fatigue state); and accumulating and analyzing the user's exercise data to provide customized feedback and a long-term exercise plan.

[0024] Step (c) above configures an exercise program consisting mainly of safe movements considering the user's disability type and health condition, and also maximizes the effectiveness and safety of the exercise by adjusting the exercise intensity or number of repetitions in real time based on exercise data.

[0025] The present invention comprises the steps of: inputting a target type and intensity of exercise by a user; transmitting a training program corresponding to the type and intensity of exercise to a handrim device; switching the operating mode of the handrim device to a training mode according to the training program and separating the handrim from the wheelchair wheel; setting a resistance value for the rotation of the handrim according to the training program and providing virtual reality content; the user rotating the handrim to overcome the provided resistance and performing driving on the virtual reality content; collecting the user's exercise data in real time through a sensor embedded in the handrim and providing feedback to the user; comprehensively analyzing the collected data after the exercise ends to evaluate the user's training performance and establish a follow-up training plan; and returning the operating mode of the handrim device to a daily driving mode.

[0026] The above step (a) is performed through a dedicated application installed on the user's smart device and is characterized by generating a personalized training program by additionally receiving the user's physical characteristics and basic fitness level.

[0027] The exercise data collected in step (f) above includes at least one of the rotational speed and direction of the hand rim, the magnitude and direction of the rotational force applied by the user, the training duration, the user's heart rate, and the calorie consumption.

[0028] The detachable hand rim device for a wheelchair according to the present invention provides the following significant effects by solving the above problems:

[0029] 1. Wheelchair users can exercise on a daily basis without the need for separate exercise equipment such as treadmills, which contributes significantly to health promotion and improvement of quality of life.

[0030] 2. The user's independence and autonomy are enhanced by a simple attachment and detachment system, and ease of use is greatly improved by easy switching between daily use and exercise modes.

[0031] 3. A precise resistance control system enables training optimized for each user's physical condition and rehabilitation goals.

[0032] 4. By integrating with virtual reality content, it provides an interesting and motivating training experience rather than boring repetitive exercises.

[0033] 5. Through real-time data collection and analysis, users and medical staff can understand objective and accurate progress.

[0034] 6. Prevent dangerous situations that may occur during exercise in advance using a real-time monitoring system.

[0035] FIG. 1 is a front view of a hand rim device for a wheelchair according to one embodiment of the present invention.

[0036] FIG. 2 is a front view of a handrim device for a wheelchair according to another embodiment of the present invention.

[0037] FIGS. 3 and 4 are perspective views of a hand rim device for a wheelchair according to another embodiment of the present invention.

[0038] FIG. 5 is an exploded perspective view of a hand rim device according to one embodiment of the present invention, illustrating in detail the coupling relationship between the hand rim body and internal components.

[0039] Fig. 6 is an enlarged perspective view of the main part of Fig. 5.

[0040] FIG. 7 shows the detailed configuration of a hand rim device according to one embodiment of the present invention.

[0041] Figure 8 is a drawing showing the actual manufactured handrim body fixedly connected to the wheelchair wheel.

[0042] Figures 9 (a) and (b) are side views illustrating a wheelchair wheel with a detachable hand rim.

[0043] Figures 10 (a) and (b) are side photographs illustrating the detailed structure of a hand rim according to one embodiment of the present invention.

[0044] The present invention as described above will be explained in detail through the attached drawings and embodiments.

[0045] When a technical term used in this invention is a technical term that similarly expresses the concept of this invention, it should be understood as being replaced with a technical term that can be correctly understood by a person skilled in the art (e.g., ~ module, ~ server, ~ part).

[0046] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings, wherein identical or similar components and functions, regardless of the drawing symbols, are given the same reference number and function as modules, servers, parts, means, devices, etc. having specific functions.

[0047] Furthermore, in describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such descriptions could obscure the essence of the invention. Additionally, it should be noted that the attached drawings are intended only to facilitate an understanding of the concept of the present invention and should not be interpreted as limiting the concept of the present invention.

[0048] In this case, each functional description divided by a distinguishing number describing each embodiment implies that it includes a function or module according to such description. Furthermore, these functions or modules are organically connected to the present invention via a network.

[0049] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Identical or similar components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0050] In this case, each functional description divided by a distinguishing number describing each embodiment implies that it includes a function or module according to such description. Furthermore, these functions or modules are organically connected to the present invention via a network.

[0051]

[0052] As illustrated in FIGS. 1 to 4, the present invention comprises a fixed plate (257) fixedly coupled to a wheelchair wheel (200) or a handrim body (300), a rotation control unit (255) rotatably coupled to the fixed plate (257), an axle fixing bearing (256) fixed to the rotation control unit (255), a rechargeable battery (253) provided inside the cover box (251, 252), a speed control motor (254-1), a rotation direction sensor (254-2), a timer (254-3), etc.

[0053] Inside the cover box (251, 252), a rechargeable battery (253), a speed control motor (254-1), a rotation direction sensor (254-2), a timer (254-3), etc. are installed.

[0054] It consists of a fixed plate (257) detachably fixed to the central axis of the wheelchair wheel (200), a rotation control unit (255) rotatably coupled to the fixed plate (257), and a cover box (251, 252) integrally fixed to the outer surface of the rotation control unit (255).

[0055] For example, as a hollow cylindrical structure coupled to the handrim body (300), various electronic components can be installed in the internal space.

[0056] Inside the hand rim body (300), a rotation direction sensor (254-2), a timer (254-3), a rechargeable battery (253), etc. are installed.

[0057] The rechargeable battery (253) is made of a lithium-ion battery or the like and supplies driving power to the speed control motor (254-1), and can be recharged through a charging port.

[0058] That is, the hand rim body (300) has a built-in rechargeable battery (253) to supply the necessary driving power to the speed control motor (254-1). The rechargeable battery (253) is made of a lithium-ion battery, etc., and can be recharged by connecting it to an external charger.

[0059] The speed control motor (254-1) is a small motor with a stepless speed control function and measures the rotational speed of the handle (300).

[0060] The rotation direction sensor (254-2) is composed of a Hall sensor or the like and detects the rotation direction and speed of the cover box (251, 252). To this end, a permanent magnet (257-1) is installed on one side of the rotation control unit (255), and a rotation direction sensor (254-2) is installed in the cover box (251, 252) in correspondence with this.

[0061] The rotation direction sensor (254-2) is for detecting the rotational movement of the hand rim body (300) and can be made of a combination of a Hall sensor and a permanent magnet.

[0062] A permanent magnet (257-1) is embedded on one side of the rotation control unit (255), and a Hall sensor (254-2) is mounted on the inner surface of the corresponding hand rim body (300). Accordingly, as the hand rim rotates, a pulse signal regarding the rotation speed and direction is output from the Hall sensor (254-2) and transmitted to the control unit.

[0063] A hand rim body (300) that can be held and operated by a user is integrally attached to the circumferential surface of the rotation control unit (255).

[0064] Additionally, the fixed plate (257) is formed in a roughly circular shape, and a hole is formed in its center through which a rotation axis passes from the wheelchair wheel (200) to the hand rim body (300). Furthermore, a plurality of through holes are formed on the perimeter edge of the fixed plate (257) so that it can be coupled with the rotation control unit (255) by means of a bolt or the like.

[0065] A fixing plate (257) and the like are fixedly connected to the central axis of the wheelchair wheel (200) by being penetrated by a detachable bolt (320), etc.

[0066]

[0067] Looking at the main configuration of the wheelchair through the drawings shown in FIGS. 5 and 6, a pair of large wheels (200) are rotatably installed on both sides of the wheelchair. A fixing plate (257) is firmly fixed to the central axis of the wheels (200) by means of fastening means such as a bolt.

[0068] The fixed plate (257) is formed in the shape of a disc, and a plurality of fastening holes are formed on its edges to be bolted to the rotation control unit (255). A through hole is formed in the center of the fixed plate (257) so that the rotation axis of the wheelchair wheel (200) can be inserted.

[0069] A speed control motor (254-1) is installed in front of the fixed plate (257). This speed control motor (254-1) is a small stepless speed control motor.

[0070] A rotation control unit (255) is rotatably coupled to the fixed plate (257) via an axle fixing bearing (256).

[0071]

[0072] As shown in FIG. 7, a hand rim body (300) that can be rotated by a user by gripping it with their hand is fixed to the outer surface of the rotation control unit (255).

[0073] A battery (253) and a timer (254-3) are installed inside the hand rim body (300). The battery (253) supplies power to the speed control motor (254-1), and the timer (254-3) automatically stops the operation of the speed control motor (254-1) after a certain period of time has elapsed following the user's cessation of hand rim operation.

[0074] The rotary control plate (255) is rotatably coupled to the fixed plate (257) via an axis fixed bearing (256). The rotary control plate (255) has a roughly circular shape, similar to the fixed plate (257).

[0075] A cover box (251, 252) that can be grasped and rotated by a user is integrally fixed to the outer surface of the rotary control unit (255). The cover box (251, 252) is formed in a hollow cylindrical shape, and various electronic components can be installed in its internal space.

[0076] Meanwhile, a permanent magnet (257-1) is provided on one side of the rotation control unit (255), and a rotation direction sensor (254-2) consisting of a Hall sensor is installed on the inner surface of the corresponding hand rim body (300). Accordingly, when a user rotates the hand rim body (300), the rotation direction sensor (254-2) detects the rotation direction and speed and transmits them to the control unit.

[0077] The control unit controls the speed control motor (254-1) based on rotation information received from the rotation direction sensor (254-2). That is, by rotating the speed control motor (254-1) in forward and reverse directions at a speed proportional to the rotation speed of the hand rim body (300), the user can control the speed and direction of the wheelchair's movement according to their intention.

[0078] The above speed control motor (254-1) is a motor capable of stepless speed control, and is fixedly installed on the above fixed plate (257) and connected to the rotation axis of the above wheelchair wheel (200).

[0079] In addition, an indicator indicating the charge status of the battery (253) may be provided on the outer surface of the hand rim body (300). This allows the user to easily check the remaining battery level.

[0080] At this time, a rotation direction sensor (254-2) embedded in the cover box (251, 252) detects the rotation speed and direction of the hand rim and transmits it to the control unit. Based on this, the control unit controls the speed control motor (254-1).

[0081] Therefore, since key components such as the motor and battery are all integrated within the handrim body, it is possible to deliver sufficient power performance while minimizing the increase in the wheelchair's weight.

[0082]

[0083] Example 1

[0084] As an example, the handrim body of the present invention may function as an additional handrim device for content or practice and training. To this end, the handrim body includes the following configuration. (In the following examples, control-related functions are processed by the control unit.)

[0085] First, the handrim body is detachably secured to the wheel or wheelchair body via electromagnetic or physical means. For example, multiple sensors or physical measuring devices are installed facing each other on the handrim body and the wheel or wheelchair body, respectively.

[0086] In other words, during normal wheelchair use, the handrim body is fixed to the wheel and rotates together, but when using content or entering training mode, the lock is released, allowing it to rotate independently of the wheel.

[0087] Through this, wheelchair users can experience a virtual driving environment or perform repetitive movements for training purposes by rotating only the hand rim body, without the need for separate exercise equipment such as a treadmill or actual driving. In addition, the operating range, speed, and response characteristics of the hand rim can be freely adjusted, enabling the provision of an optimal training environment tailored to each individual.

[0088] As an example, the hand rim body of the present invention may further include a resistance device together with a sensor or a physical measuring device. The resistance device serves to provide appropriate resistance when the hand rim is rotated to strengthen the user's muscles and adjust training intensity.

[0089] Representative implementation methods for resistance devices include electromagnetic brakes and mechanical friction. When using an electromagnetic brake, a coil is installed on the inner side of the hand rim body, and a permanent magnet is installed on the outer side of the wheel.

[0090] When current is applied to a coil, a magnetic field is formed according to Fleming's left-hand rule, and a braking effect occurs between this magnetic field and the magnetic field of a permanent magnet, thereby resisting rotation. At this time, by adjusting the value of the current applied to the coil, the braking torque can be controlled indefinitely.

[0091]

[0092] Example 2

[0093] Meanwhile, this resistance device can be integrated with virtual reality content. That is, by calculating the force required for the hand rim in real time based on the driving environment, road surface conditions, and climbing angle within the content, and varying the braking force accordingly, it can provide a driving sensation similar to actual driving.

[0094] In addition, resistance values ​​can be gradually increased to match the user's fitness level, enabling progressive resistance training optimized for each individual. This allows for the maximization of health benefits, such as strengthening upper limb muscles and improving cardiovascular function.

[0095] The handrim device of the present invention includes a wireless communication module to support interoperability with external devices. The communication module can utilize various wireless protocols such as Bluetooth, Wi-Fi, and NFC.

[0096] Through the communication module, the Handrim device is paired with a dedicated application installed on the user's smartphone or tablet PC. The application controls the main functions of the Handrim device and provides the user with various information and content.

[0097] First, the application allows you to set the operating mode of the Handrim device. If you select daily riding mode, virtual riding mode, training mode, etc., the connection state between the Handrim body and the wheel is determined accordingly.

[0098] Meanwhile, a sensor unit that measures the user's exercise information is connected to the communication module. The sensor unit may include various sensors that measure driving speed, driving distance, hand rim torque, and the user's heart rate.

[0099] The exercise data collected in this way is transmitted to the application in real time for display on the screen and is also used to generate exercise result reports. Additionally, it is uploaded to a cloud server to enable long-term data management and analysis.

[0100]

[0101] Example 3

[0102] The present invention comprises the steps of: installing a torque sensor for measuring rotational force and an encoder for measuring speed on the hand rim device; monitoring the user's exercise status in real time through the torque sensor and the encoder; generating an exercise program suitable for the user and setting the resistance value of the hand rim based on the monitoring results; warning of excessive exercise and inducing appropriate rest for the user's safety (automatically adjusting exercise intensity through real-time biosignal monitoring and recommending rest or adjusting the resistance value according to the user's fatigue state); and accumulating and analyzing the user's exercise data to provide customized feedback and a long-term exercise plan.

[0103] The above step configures an exercise program focused on safe movements, taking into account the user's disability type and health condition.

[0104] The above step maximizes the effectiveness and safety of exercise by adjusting exercise intensity or repetitions in real time based on exercise data.

[0105] The above step collects and analyzes exercise data from multiple users to derive optimal exercise patterns and utilizes them for personalized training for each individual.

[0106] For example, exercise data (type of exercise, intensity, time, frequency, rest interval, etc.) of all users using the Handrim device can be collected in real time, along with basic physical information (age, gender, type of disability, health status, etc.), and the collected data can be transmitted to a cloud server to build a big data platform.

[0107]

[0108] Example 4

[0109] The present invention comprises the steps of: inputting a target type and intensity of exercise by a user; transmitting a training program corresponding to the type and intensity of exercise to a handrim device; switching the operating mode of the handrim device to a training mode according to the training program and separating the handrim from the wheelchair wheel; setting a resistance value for the rotation of the handrim according to the training program and providing virtual reality content; the user rotating the handrim to overcome the provided resistance and performing driving on the virtual reality content; collecting the user's exercise data in real time through a sensor embedded in the handrim and providing feedback to the user; comprehensively analyzing the collected data after the exercise ends to evaluate the user's training performance and establish a follow-up training plan; and returning the operating mode of the handrim device to a daily driving mode.

[0110] The collected exercise data includes at least one of the rotational speed and direction of the hand rim, the magnitude and direction of the rotational force applied by the user, the training duration, the user's heart rate, and the calorie expenditure.

[0111] In other words, it displays a warning message if the exercise intensity is excessively high or low compared to the user's fitness level, while automatically adjusting the resistance value of the hand rim.

[0112] For example, to determine whether the user's exercise intensity is appropriate, the user's heart rate is measured in real time. This can be done using a wristband heart rate monitor or an ear clip heart rate monitor. If the heart rate during exercise exceeds a certain percentage of the user's maximum heart rate (HRmax), the intensity is determined to be excessively high.

[0113] In general, it is recommended that healthy adults maintain 64–76% of HRmax during moderate-intensity exercise and 77–95% of HRmax during high-intensity exercise. However, since this standard may vary for the elderly or users with specific diseases, a safe range should be set according to the individual's health condition.

[0114]

[0115] Example 5

[0116] Hereinafter, additional configurations for implementing the present invention will be described in more detail.

[0117] (In the following embodiments, control-related functions are processed by the control unit.)

[0118]

[0119] 1. Configuration of additional hand rim devices for content and training

[0120] The handrim body of the present invention can function as an additional handrim device for content or practice and training. To this end, the handrim body includes the following configuration.

[0121] First, the handrim body is detachably secured to the wheel or wheelchair body via electromagnetic or physical means. When using the electromagnetic method, an electromagnet and an iron piece are installed facing each other on the handrim body and the wheel or wheelchair body, respectively.

[0122] A controllable power supply is connected to the electromagnet, and when power is applied, the iron piece is attracted by the electromagnetic force, so that the hand rim body is fixed in close contact with the wheel, and when the power is cut off, the electromagnetic force is released, allowing the hand rim body to be removed.

[0123] Meanwhile, as a physical fixing method, a mechanical fastening structure can be applied between the hand rim body and the wheel. For example, a latch groove and a latch projection are formed on the inner surface of the hand rim body and the outer surface of the wheel, respectively, and attachment and detachment can be achieved through their engagement and release.

[0124] Of course, a hybrid method combining both—that is, a method that combines electromagnetic adsorption and mechanical fastening—is also possible.

[0125] For example, during normal wheelchair use, the handrim body is fixed to the wheel and rotates together, but when entering content usage or training mode, the lock is released, allowing it to rotate independently of the wheel.

[0126] This enables users to experience a virtual driving environment or perform repetitive movements for training purposes by rotating only the hand rim body, without actual driving. Additionally, the hand rim's operating range, speed, and response characteristics can be freely adjusted, allowing for the provision of an optimal training environment tailored to each individual.

[0127]

[0128] 2. Resistor Device Configuration

[0129] The hand rim body of the present invention may further include a resistance device. The resistance device serves to provide appropriate resistance when the hand rim is rotated, for strengthening the user's muscles and adjusting training intensity.

[0130] Representative implementation methods for resistance devices include electromagnetic brakes and mechanical friction. When using an electromagnetic brake, a coil is installed on the inner side of the hand rim body, and a permanent magnet is installed on the outer side of the wheel.

[0131] When current is applied to a coil, a magnetic field is formed according to Fleming's left-hand rule, and a braking effect occurs between this magnetic field and the magnetic field of a permanent magnet, thereby resisting rotation. At this time, by adjusting the value of the current applied to the coil, the braking torque can be controlled indefinitely.

[0132] Meanwhile, this resistance device can be integrated with virtual reality content. That is, by calculating the force required for the hand rim in real time based on the driving environment, road surface conditions, and climbing angle within the content, and varying the braking force accordingly, it can provide a driving sensation similar to actual driving.

[0133]

[0134] 3. Communication Module and Application Configuration

[0135] The handrim device of the present invention includes a wireless communication module to support interoperability with external devices. The communication module can utilize various wireless protocols such as Bluetooth, Wi-Fi, and NFC.

[0136] Through the communication module, the Handrim device is paired with a dedicated application installed on the user's smartphone or tablet PC. The application controls the main functions of the Handrim device and provides the user with various information and content.

[0137] First, the application allows you to set the operating mode of the Handrim device. If you select daily riding mode, virtual riding mode, training mode, etc., the connection state between the Handrim body and the wheel is determined accordingly.

[0138] In addition, the application can remotely adjust the resistance value of the hand rim by controlling the current / hydraulic pressure applied to the coil. Furthermore, various control methods can be implemented, such as a mode where the resistance value is automatically set in conjunction with content, and a mode where the user manually inputs the resistance value.

[0139] Meanwhile, a sensor unit that measures the user's exercise information is connected to the communication module. The sensor unit may include various sensors that measure driving speed, driving distance, hand rim torque, and the user's heart rate.

[0140] The exercise data collected in this way is transmitted to the application in real time for display on the screen and is also used to generate exercise result reports. Additionally, it is uploaded to a cloud server to enable long-term data management and analysis.

[0141] Furthermore, it is possible to automatically generate and recommend personalized training programs based on exercise data. The AI ​​engine within the application analyzes the user's fitness level, preferences, and goals to select and present the most suitable training intensity, frequency, and content.

[0142] In addition, the application supports integration with virtual reality content. Through a VR headset connected to the hand rim device, it provides a realistic driving environment, and enables a highly immersive content experience, including avatar movement control via hand rim operation and resistance value changes tailored to the driving environment.

[0143] In addition, the application may include a remote control function. This allows medical professionals or trainers to monitor the user's training progress from a remote location and adjust the hand rim's operation mode or resistance values ​​as needed. This enables more professional and effective training guidance.

[0144] Finally, the application supports community features for users. Through this, users can share their training know-how, encourage one another, and compete with one another. Additionally, they can easily access health information and exercise tips provided by experts, which can be of great help in maintaining motivation and consistency in Handream training.

[0145]

[0146] Example 6

[0147] Hereinafter, a method of using the exercise and rehabilitation device for a wheelchair user according to the present invention will be described in detail with reference to the attached drawings. (In the following embodiments, control-related functions are processed by the control unit or microcontroller, etc. Each sensor and encoder, etc. is mounted in a cover box.)

[0148] The method of use of the present invention includes the step of installing a sensor system for measuring rotational force. This is intended to precisely measure the force applied to the hand rim and the rotational speed, etc.

[0149] First, the torque sensor is mounted at the joint between the hand rim body and the wheel. Specifically, the torque sensor is integrally provided in the nut connecting the connecting shaft of the hand rim body and the center member of the wheel.

[0150] Various methods, such as strain gauges, magnetostrictive sensors, and optical torque sensors, can be utilized as torque sensors. These commonly output an electrical signal in proportion to the torsional force acting on the shaft, which allows for the determination of the magnitude and direction of the force applied to the hand rim.

[0151] Next, an encoder for measuring rotational speed is installed on the coupling shaft or auxiliary shaft (312, 313). When the shaft rotates together with the rotation of the wheel, the encoder outputs the amount of rotation and angular velocity as an electrical pulse signal.

[0152] In the case of incremental encoders, the amount of rotation is measured by forming equal-interval scales on the axis and passing an optical sensor through them to count pulses.

[0153] From the rotational speed information measured in this way, the actual driving speed of the wheelchair can be calculated by considering the turning radius of the hand rims and the gear ratio. In addition, by comparing and analyzing the difference in speed between the left and right wheels, the wheelchair's direction of travel and turning radius can also be calculated.

[0154] The method of use of the present invention includes the steps of monitoring the user's exercise status and processing collected data and providing feedback to the user. This is a process of utilizing data obtained through previously installed sensors.

[0155] First, the magnitude and direction of the force applied by the user when rotating the hand rim can be determined in real time through data collected from the torque sensor. In addition, by analyzing accumulated data over a certain period, the user's muscle strength level or fatigue can be objectively evaluated.

[0156] The rotational speed, acceleration, and travel distance of the hand rim are calculated from the data collected by the encoder. This allows for the quantitative measurement of the user's momentum and intensity, and in particular, the achievement rate relative to the target value can be expressed as a percentage.

[0157] The various exercise data measured in this way are primarily processed by a microcontroller embedded in the hand rim. The microcontroller is equipped with a formula that converts physical quantities such as torque, speed, and distance into the body's energy consumption, and calculates the user's exercise intensity and calorie consumption.

[0158] The application provides feedback in various forms, including real-time exercise monitoring screens, daily / weekly / monthly exercise statistics, and goal setting and achievement rate screens. It also learns the user's exercise patterns to present personalized coaching messages.

[0159] This enables users to objectively assess their exercise status, set appropriate goals, and engage in consistent training. Furthermore, as long-term exercise data accumulates, it becomes possible to track and manage changes in their health status.

[0160] The method of use of the present invention includes the step of providing and adjusting an exercise program. This is intended to establish and apply an optimal training plan tailored to the user's physical fitness and goals.

[0161] First, the application automatically generates an exercise program of appropriate intensity based on the user's basic physical information and initial exercise capacity test results. At this stage, the program is composed primarily of movements that ensure safety, taking into account the user's type of disability or health condition.

[0162] In addition, it comprehensively analyzes the user's exercise compliance rate and goal achievement to provide situation-appropriate feedback, such as offering encouraging messages or recommending rest. This enables users to maintain an appropriate level of motivation while preventing injuries caused by excessive training.

[0163] Meanwhile, the application supports features allowing professional trainers or medical staff to remotely monitor the user's training progress and provide advice. With the user's consent, exercise data can be shared via the application, and real-time feedback can be exchanged through video calls.

[0164] This is expected to be particularly useful for users in environments where it is difficult to receive guidance from experts. In addition, by enabling the physician who prescribed the rehabilitation training to monitor the patient's compliance and intervene appropriately, it will also contribute to maximizing the outcomes of rehabilitation.

[0165] The method of use of the present invention includes the step of operating a safety monitoring and warning system. This is intended to provide a warning when a user exhibits dangerous movements or engages in strenuous exercise.

[0166] It analyzes the wheelchair's speed, acceleration, and rotational force in real time from the hand rim's rotation and torque information, and issues an immediate warning if excessive values ​​are detected.

[0167] It also detects user fatigue or decreased concentration to induce appropriate rest. By comprehensively monitoring subtle changes in hand rim operation and blinking frequency, it determines the level of fatigue; if it exceeds a certain threshold, it sends a warning message and prompts a reduction in exercise intensity.

[0168]

[0169] Example 7

[0170] As illustrated in FIGS. 8 to 10, in one embodiment, the present invention comprises: a wheel (200) including a central hole (211) formed in a spoke center member (210) that is coupled to a wheelchair (100); a hand rim body (300) that is detachably coupled to the wheel (200); a coupling shaft (310) located at the center of the hand rim body (300) and connected to a coupling member (322) for coupling with the wheelchair wheel (200); and a plurality of auxiliary holes (212, 213) arranged around the central hole (211) coupled to the coupling shaft (310) to provide rotational stability and additional support.

[0171] The above handrim body (300) is an additional handrim device for content or practice and training, and can be fixed and released from the wheel (200) or wheelchair body in an electromagnetic or physical manner. When using the wheelchair normally, it is fixed to the wheel (200) and used, and when using it for content or training, it is released from the wheel (200) or wheelchair body so that only the handrim is driven.

Claims

1. A hand rim device detachably coupled to the wheel (200) of a wheelchair, A fixed plate (257) fixedly coupled to the central axis of the wheel (200); A rotary control unit (255) rotatably connected through the above fixed plate (257) and shaft fixed bearing (256); A hand rim body (300) fixedly coupled to the outer surface of the above-mentioned rotation control unit (255) and capable of being grasped and rotated by the user's hand; A speed control motor (254-1) installed on the fixed plate (257) to control the rotation of the wheel (200); A rechargeable battery (253) embedded inside the hand rim body (300) and supplying power to the speed control motor (254-1); A permanent magnet (257-1) installed on the rotation control unit (255) and a rotation direction sensor (254-2) installed on the hand rim body (300) in correspondence to detect the rotation direction and speed of the hand rim body (300); and It includes a timer (254-3) that stops the operation of the speed control motor (254-1) when the rotation of the hand rim body (300) is interrupted for more than a predetermined time; An exercise and rehabilitation device for a wheelchair user characterized by controlling the speed control motor (254-1) according to the rotation direction and speed of the handrim body (300) received from the rotation direction sensor (254-2).

2. In Claim 1, An exercise and rehabilitation device for a wheelchair user, characterized in that the handrim body (300) is detachable from the wheel (200) by electromagnetic action or mechanical fastening.

3. In Claim 1, An exercise and rehabilitation device for a wheelchair user, wherein the handrim body (300) further includes a resistance device using an electromagnetic brake or mechanical friction, and the resistance device variably controls the force required for operating the handrim in conjunction with virtual reality content.

4. In the method of using an exercise and rehabilitation device for wheelchair users, (a) A step of installing a torque sensor for measuring rotational force and an encoder for measuring speed on the hand rim device; (b) a step of monitoring the user's exercise state in real time through the torque sensor and encoder; (c) A step of generating an exercise program suitable for the user and setting the resistance value of the hand rim based on the above monitoring results; (d) a step to warn of excessive exercise and alarm for appropriate rest for the user's safety; and (e) A step of accumulating and analyzing the user's exercise data to provide customized feedback and long-term exercise plans; A method of using an exercise and rehabilitation device for a wheelchair user characterized by including 5. In Claim 4, The above step (c) is a method of using an exercise and rehabilitation device for a wheelchair user, characterized by configuring an exercise program focused on safe movements while considering the user's disability type and health condition.

6. In Claim 4, The above step (c) is a method of using an exercise and rehabilitation device for a wheelchair user, characterized by maximizing the effectiveness and safety of the exercise by adjusting the exercise intensity or number of repetitions in real time based on exercise data.

7. A method for performing exercise and rehabilitation training using a hand rim device mounted on a wheelchair, (a) A step in which the user inputs the type and intensity of the exercise to be targeted; (b) A step in which a training program corresponding to the above exercise type and intensity is transmitted to a handrim device; (c) A step in which the operation mode of the handrim device is switched to a training mode according to the above training program, and the handrim is separated from the wheelchair wheel; (d) A step in which a resistance value for the rotation of the hand rim is set according to the above training program, and virtual reality content is provided; (e) A step in which the user rotates the hand rim to overcome the provided resistance and performs driving on the virtual reality content; (f) A step in which user exercise data is collected in real time through a sensor embedded in the hand rim and fed back to the user; (g) A step of comprehensively analyzing data collected after the exercise to evaluate the user's training performance and establish a follow-up training plan; (h) a step of returning the operation mode of the handrim device to a daily driving mode; a method of using an exercise and rehabilitation device for a wheelchair user characterized by including the above step.

8. In Claim 7, The above step (a) is, It is carried out through a dedicated application installed on the user's smart device, and A method of using an exercise and rehabilitation device for a wheelchair user characterized by generating a personalized training program by additionally inputting the user's physical characteristics and basic fitness level.

9. In Claim 7, The motion data collected in the above (f) step is, A method of using an exercise and rehabilitation device for a wheelchair user, characterized by including at least one of the rotational speed and direction of the hand rim, the magnitude and direction of the rotational force applied by the user, the duration of training, the user's heart rate, and the calorie expenditure.

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