Workout aid device

Abstract

A workout aid device according to an embodiment comprises: a base body configured to support the back of a user; a connection frame connected to the base body; a driving module configured to generate power for aiding the user's workout; a leg frame configured to rotate by means of power received from the driving module; a thigh fastening portion connected to the leg frame and worn on the user's thigh; a printed circuit board disposed inside the driving module; a control switch including a pair of side switches connected to the printed circuit board, and a center switch disposed between the pair of side switches; and a control button including a button body movably connected to be able to move with regard to the driving module such that one switch constituting the control switch is moved, and a guide rib extending from the button body. The driving module includes a cover frame connected to the connection frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction. The guide rib may be positioned between the pair of frame protrusions in a state in which the button body presses the center switch.

Description

Exercise assist devices

[0001] The present invention relates to a motion assistance device.

[0002] As we enter an aging society, the number of people complaining of difficulty and pain in walking due to weakened muscles or joint problems caused by aging is increasing, and interest in walking assistance devices that can help elderly people with weakened muscles or patients with muscle and joint problems walk smoothly is growing.

[0003] According to one embodiment, a motion assistance device includes a base body supporting a user's back, a connecting frame connected to the base body, a driving module generating power for assisting the user's motion, a leg frame rotating by receiving power from the driving module, a thigh fastening part connected to the leg frame and worn on the user's thigh, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, and a control button including a button body movably connected to the driving module to press any one of the control switches, and a guide rib extending from the button body, wherein the driving module includes a cover frame connected to the connecting frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, wherein the guide rib can be positioned between the pair of frame protrusions in a state where the button body presses the center switch.

[0004] According to one embodiment, a motion assistance device includes a driving module that generates power to assist a user's motion, a leg frame that receives power from the driving module and rotates, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, a button body that is movably connected to the driving module to press any one of the control switches, and a control button including a guide rib that extends from the button body, and a button seal that is provided inside the driving module and supports the button body, wherein the driving module includes a cover frame and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, and the guide rib can be positioned between the pair of frame protrusions in a state where the button body presses the center switch.

[0005] According to one embodiment, a motion assistance device includes a base body supporting a user's back, a connecting frame connected to the base body, a driving module generating power for assisting the user's motion, a leg frame rotating by receiving power from the driving module, a thigh fastening part connected to the leg frame and worn on the user's thigh, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, and a control button including a button body movably connected to the driving module to press any one of the control switches, and a guide rib extending from the button body, wherein the driving module includes a cover frame connected to the connecting frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, wherein the guide rib overlaps the pair of frame protrusions in the first direction when the button body presses the center switch, and the guide rib causes the button body to tilt with respect to the cover frame so as to press any one of the pair of side switches. In a state where the switch is pressed, the frame protrusion can be overlapped in a second direction intersecting the first direction.

[0006] FIG. 1 is a drawing for explaining an outline of an exercise assistance device worn on a user's body according to one embodiment.

[0007] FIG. 2 is a drawing for explaining an exercise management system including an exercise assistance device and an electronic device according to one embodiment.

[0008] Figure 3 shows a front schematic diagram of a motion assistance device according to one embodiment.

[0009] FIG. 4 illustrates a left side view of a motion assistance device according to one embodiment.

[0010] FIG. 5 is a perspective view illustrating a control button according to one embodiment.

[0011] Fig. 6 is a cross-sectional view of the control button cut along the cut line VI-VI of Fig. 5.

[0012] FIG. 7 is an exploded perspective view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment.

[0013] FIG. 8 is a cross-sectional view showing a control button, a button thread, a printed circuit board, and a control switch according to one embodiment, and shows the center switch being pressed.

[0014] FIG. 9 is a cross-sectional view showing a control button, a button thread, a printed circuit board, and a control switch according to one embodiment, and shows the side switch being pressed.

[0015] FIG. 10 is a perspective view illustrating a cover frame and frame protrusion according to one embodiment.

[0016] FIG. 11 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment.

[0017] FIG. 12 is a cross-sectional view showing a control button, a button thread, a printed circuit board, and a control switch according to one embodiment, and shows the center switch being pressed.

[0018] FIG. 13 is a cross-sectional view showing a control button, a button thread, a printed circuit board, and a control switch according to one embodiment, and shows the side switch being pressed.

[0019] Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Therefore, the actual implementation is not limited to the specific embodiments disclosed, and the scope of this specification includes modifications, equivalents, or alternatives within the technical concepts described in the embodiments.

[0020] Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "has" should be understood to indicate the presence of a described feature, number, step, operation, component, part, or combination thereof, but not to exclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0021] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art. Terms defined in commonly used dictionaries should be interpreted to have a meaning consistent with their meaning in the context of the relevant technology, and will not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0022] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0023] FIG. 1 is a drawing for explaining an overview of an exercise assistance device worn on a user's body according to one embodiment.

[0024] Referring to FIG. 1, in one embodiment, a wearable device (10) may be a device worn on the body of a user (U) to assist walking, exercise, and / or work of the user (U). In one embodiment, the wearable device (10) may also be used to measure the physical ability (e.g., walking ability, exercise ability, exercise posture) of the user (U). In embodiments, the term 'wearable device' may be replaced with 'wearable robot', 'walking assistance device', or 'exercise assistance device'. The user (U) may be a human or an animal, but is not limited thereto. The wearable device (10) may be worn on the body (e.g., lower body (legs, ankles, knees, etc.), upper body (torso, arms, wrists, etc.), or waist) of the user (U) to apply an external force of assistance force and / or resistance force to the body movement of the user (U). Assistance is a force applied in the same direction as the user's (U) body movement, representing a force that assists the user's (U) body movement. Resistance is a force applied in the opposite direction of the user's (U) body movement, representing a force that impedes the user's (U) body movement. The term "resistance" can also be referred to as "exercise load."

[0025] In one embodiment, the wearable device (10) can operate in a walking assistance mode to assist the walking of a user (U). In the walking assistance mode, the wearable device (10) can assist the walking of the user (U) by applying an assistive force generated from the driving module (91) of the wearable device (10) to the body of the user (U). The wearable device (10) can assist the force required for the walking of the user (U), thereby enabling the user (U) to walk independently or to walk for a long time, thereby expanding the walking ability of the user (U). The wearable device (10) can also help improve the walking of a pedestrian with abnormal walking habits or walking posture.

[0026] In one embodiment, the wearable device (10) may operate in an exercise assistance mode to enhance the exercise effect of the user (U). In the exercise assistance mode, the wearable device (10) may impede the body movement of the user (U) or provide resistance to the body movement of the user (U) by applying a resistance force generated from the driving module (91) to the body of the user (U). If the wearable device (10) is a hip-type wearable device worn on the waist (or pelvis) and legs (e.g., thighs) of the user (U), the wearable device (10) may provide an exercise load to the leg movement of the user (U) while being worn on the legs, thereby further enhancing the exercise effect on the legs of the user (U). In one embodiment, the wearable device (10) may also apply an assistive force to the body of the user (U) to assist the exercise of the user (U). For example, when a disabled person or an elderly person wears a wearable device (10) to exercise, the wearable device (10) may provide assistive force to assist body movements during the exercise. In one embodiment, the wearable device (10) may provide a combination of assistive force and resistance force by exercise section or time section, such as providing assistive force in some exercise sections and resistance force in other exercise sections.

[0027] In one embodiment, the wearable device (10) may operate in a physical ability measurement mode for measuring the physical ability of a user (U). The wearable device (10) may measure the user's movement information using sensors (e.g., an angle sensor (93), an inertial measurement unit (IMU) (94)) provided in the wearable device (10) while the user is walking or exercising, and may evaluate the user's physical ability based on the measured movement information. For example, the user's gait index or exercise ability index (e.g., muscle strength, endurance, balance, exercise movement) may be estimated through the user's movement information measured by the wearable device (10). The physical ability measurement mode may include an exercise movement measurement mode for measuring the user's exercise movement.

[0028] In various embodiments of the present disclosure, for convenience of explanation, a hip-type wearable device (10) as illustrated in FIG. 1 is used as an example, but is not limited thereto. As described above, the wearable device (10) may be worn on other body parts (e.g., upper arms, lower arms, hands, calves, feet) other than the waist and legs (particularly, thighs), and the shape and configuration of the wearable device may vary depending on the body part on which it is worn.

[0029] In one embodiment, the wearable device (10) may include a support frame (e.g., a leg frame (16) of FIG. 3), a connection frame (12) for assisting body movement of the user (U) when the wearable device (10) is worn on the body of the user (U), a sensor module for acquiring sensor data including movement information about body movement (e.g., leg movement, upper body movement) of the user (U), a driving module (91) for generating a torque applied to the leg of the user (U) (e.g., a driving module (13) of FIG. 3), and a control module (92) for controlling the wearable device (10).

[0030] In one embodiment, the wearable device (10) may include an angle sensor (93) for measuring a joint angle of the user and an inertial measurement device (94) for measuring changes in acceleration and rotational speed according to the body movement of the user (U). The angle sensor (93) may measure a rotation angle (or angular velocity) of a leg frame of the wearable device (10) corresponding to a hip joint angle value of the user (U). The rotation angle of the leg frame measured by the angle sensor (93) may be estimated to be a hip joint angle value (or leg angle value) of the user (U). The angle sensor (93) may include, for example, an encoder and / or a hall sensor. In one embodiment, the angle sensors (93) may be present near the left hip joint and the right hip joint of the user (U), respectively. The inertial measurement device (94) may include an acceleration sensor and / or an angular velocity sensor (e.g., a gyro sensor), and may measure changes in acceleration and / or angular velocity (or rotational velocity) according to the movement of the user (U). The inertial measurement device (94) may measure, for example, an upper body movement value of the user (U) corresponding to a movement value of the connection frame (or base body (base body (11) of FIG. 3)) of the wearable device (10). The movement value of the connection frame measured by the inertial measurement device (94) may be estimated to be an upper body movement value of the user (U). In the present specification, an 'inertial measurement device' may also be referred to as an 'inertial sensor'.

[0031] In one embodiment, the control module (92) and the inertial measurement device (94) may be placed in the base body of the wearable device (10) (e.g., the base body (11) of FIG. 3). The base body may be positioned at the lumbar region (waist region) of the user (U) while the user (U) wears the wearable device (10). The base body may be formed or attached to the outside of the connecting frame of the wearable device (10). The base body may be mounted at the lumbar region of the user (U) to provide a cushioning feeling to the user's waist, and may support the user's waist together with the connecting frame.

[0032] FIG. 2 is a drawing for explaining an exercise management system including an exercise assistance device and an electronic device according to one embodiment.

[0033] Referring to FIG. 2, the exercise management system (20) may include a wearable device (10) worn on a user's body, an electronic device (21), another wearable device (22), and a server (23). In one embodiment, the exercise management system (20) may omit at least one of these devices (e.g., another wearable device (22) or the server (23)) or may add one or more other devices (e.g., a dedicated controller device of the wearable device (10)).

[0034] In one embodiment, the wearable device (10) may be worn on the user's body in a walking assistance mode to assist the user's movements. For example, the wearable device (10) may be worn on the user's leg to generate an assistive force to assist the user's leg movements, thereby assisting the user's walking.

[0035] In one embodiment, the wearable device (10) may generate and apply to the user's body a resistance force to hinder the user's body movement or an assistive force to assist the user's body movement in order to enhance the user's exercise effect in the exercise assistance mode. In the exercise assistance mode, the user may select an exercise program (e.g., squats, split lunges, dumbbell squats, lunges and knee ups, stretching, etc.) to be exercised using the wearable device (10) through the electronic device (21) and / or an exercise intensity to be applied to the wearable device (10). The wearable device (10) may control the drive module of the wearable device (10) according to the exercise program selected by the user, and may acquire sensor data including information on the user's movement through the sensor module. The wearable device (10) may adjust the strength of the resistance force or the assistive force to be applied to the user according to the exercise intensity selected by the user. For example, the wearable device (10) can control the drive module to generate a resistance corresponding to the exercise intensity selected by the user.

[0036] In one embodiment, the wearable device (10) may be used to measure a user's physical ability in conjunction with an electronic device (21). The wearable device (10) may operate in a physical ability measurement mode, which is a mode for measuring the user's physical ability under the control of the electronic device (21), and may transmit sensor data acquired by the user's movements in the physical ability measurement mode to the electronic device (21). The electronic device (21) may analyze the sensor data received from the wearable device (10) to estimate the user's physical ability.

[0037] In one embodiment, the electronic device (21) can communicate with the wearable device (10), remotely control the wearable device (10), or provide the user with status information about the status of the wearable device (10) (e.g., booting status, charging status, sensing status, error status). The electronic device (21) can receive sensor data acquired by a sensor of the wearable device (10) from the wearable device (10), and estimate the user's physical ability or exercise result based on the received sensor data. In one embodiment, when the user wears the wearable device (10) and exercises, the wearable device (10) can acquire sensor data including movement information of the user using the sensors, and transmit the acquired sensor data to the electronic device (21). The electronic device (21) can extract the user's movement value from the sensor data, and evaluate the user's exercise motion based on the extracted movement value. The electronic device (21) can provide the user with exercise motion measurement values ​​and exercise motion evaluation information for the user's exercise motion through a graphical user interface.

[0038] In one embodiment, the electronic device (21) can execute a program (e.g., an application) for controlling the wearable device (10), and the user can adjust the operation or setting value of the wearable device (10) (e.g., the torque intensity output from the driving module (13) of FIG. 3), the volume of audio output from the sound output module, the light unit, etc. through the program. The program executed in the electronic device (21) can provide a graphical user interface (GUI) for interaction with the user. The electronic device (21) can be a device of various forms. For example, the electronic device (21) can include a portable communication device (e.g., a smartphone), a computer device, an access point, a portable multimedia device, or a home appliance device (e.g., a television, an audio device, a projector device), but is not limited to the devices described above.

[0039] In one embodiment, the electronic device (21) may be connected to a server (23) using short-range wireless communication or cellular communication. The server (23) may receive user profile information of a user using the wearable device (10) from the electronic device (21), and store and manage the received user profile information. The user profile information may include, for example, information on at least one of name, age, gender, height, weight, or body mass index (BMI). The server (23) may receive exercise history information on exercise performed by the user from the electronic device (21), and store and manage the received exercise history information. The server (23) may provide various exercise programs or physical ability measurement programs that may be provided to the user to the electronic device (21).

[0040] In one embodiment, the wearable device (10) and / or the electronic device (21) may be connected to another wearable device (22). The other wearable device (22) may be, for example, wireless earphones (222), a smartwatch (224), or smartglasses (226), but is not limited to the aforementioned devices. In one embodiment, the smartwatch (224) may measure a biosignal including heart rate information of the user, and transmit the measured biosignal to the electronic device (21) and / or the wearable device (10). The electronic device (21) may estimate heart rate information of the user (e.g., current heart rate, maximum heart rate, average heart rate) based on the biosignal received from the smartwatch (224), and may provide the estimated heart rate information to the user.

[0041] In one embodiment, the user's exercise result information, physical ability information (e.g., gait evaluation information), and / or exercise motion evaluation information evaluated by the electronic device (21) may be transmitted to another wearable device (22) and provided to the user through the other wearable device (22). Status information of the wearable device (10) may also be transmitted to another wearable device (22) and provided to the user through the other wearable device (22). In one embodiment, the wearable device (10), the electronic device (21), and the other wearable device (22) may be connected to each other through wireless communication (e.g., Bluetooth communication, Wi-Fi communication).

[0042] In one embodiment, the wearable device (10) may provide (or output) feedback (e.g., visual feedback, auditory feedback, tactile feedback) corresponding to the state of the wearable device (10) according to a control signal received from the electronic device (21). For example, the wearable device (10) may provide visual feedback through a light unit and may provide auditory feedback through an audio output module. The wearable device (10) may include a haptic module and may provide tactile feedback in the form of vibration to the user's body through the haptic module. The electronic device (21) may also provide (or output) feedback (e.g., visual feedback, auditory feedback, tactile feedback) corresponding to the state of the wearable device (10).

[0043] In one embodiment, the electronic device (21) may present personalized exercise goals to the user in an exercise assistance mode. The personalized exercise goals may include exercise volume targets for each of the exercise types (e.g., strength training, balance training, aerobic training) that the user wishes to perform, as determined by the electronic device (21) and / or the server (23). When the server (23) determines the exercise volume targets, the server (23) may transmit information about the determined exercise volume targets to the electronic device (21). The electronic device (21) may present exercise volume targets for the exercise types of strength training, aerobic training, and balance training in a personalized manner according to the exercise program to be performed (e.g., squats, split lunges, lunge and knee-ups) and / or the user's physical characteristics (e.g., age, height, weight, BMI). The electronic device (21) may display a GUI screen indicating the exercise volume targets for each exercise type on the display.

[0044] In one embodiment, the electronic device (21) and / or the server (23) may include a database storing information on a plurality of exercise programs that may be provided to the user through the wearable device (10). To achieve the user's exercise goal, the electronic device (21) and / or the server (23) may recommend an exercise program suitable for the user. The exercise goal may include, for example, at least one of muscle strength improvement, muscle stamina improvement, cardiopulmonary endurance improvement, core stability improvement, flexibility improvement, or symmetry improvement. The electronic device (21) and / or the server (23) may store and manage exercise programs performed by the user and the results of the exercise programs performed.

[0045] In one embodiment, the electronic device (21) may evaluate the user's walking ability in conjunction with the wearable device (10). For example, the electronic device (21) may estimate a gait index, which is an index indicating the user's walking state, based on sensor data acquired from a sensor module of the wearable device (10) worn by the user. The gait index may be a measure for judging the quality of walking performed by the user. The gait index estimated by the electronic device (21) may include, for example, at least one of walking speed, step time, step length of one step, stride length of two steps, walking distance, gait symmetry index, gait variability index, or walk ratio. The electronic device (21) may calculate the gait index in real time while the user is walking while wearing the wearable device (10).

[0046] In one embodiment, when a user wears a wearable device (10) and walks (or exercises), the wearable device (10) may obtain sensor data including movement information related to the user's walking using sensors, and transmit the obtained sensor data to an electronic device (21). The electronic device (21) may estimate the user's walking evaluation information based on the sensor data, and provide the estimated walking evaluation information to the user. The walking evaluation information may include, for example, various walking indices related to the user's walking (e.g., walking speed, walking time, stride length, walking symmetry index, walking variability index, walking ratio) when the user walks while wearing the wearable device (10). The electronic device (21) may also provide the user with feedback information for improving the user's walking condition based on the walking evaluation information. For example, if the electronic device (21) determines that the user's measured stride length is shorter than a desired stride length, the electronic device (21) may suggest to the user to walk with a wider stride length.

[0047] In one embodiment, the wearable device (10) and the electronic device (21) can estimate gait indices such as walking speed using an angle sensor (e.g., angle sensor (93)) and an inertial measurement device (e.g., inertial measurement device (94)) of the wearable device (10) without using a global positioning system (GPS) sensor for tracking the user's location, and thus can estimate gait indices not only outdoors but also indoors. In addition, the wearable device (10) and the electronic device (21) can estimate gait indices even when the user walks in a fixed location such as a treadmill, and can estimate gait indices by reflecting the user's individual characteristics. The electronic device (21) can provide evaluation information on the user's gait state to the user using the wearable device (10), thereby increasing the user's interest in walking or exercising.

[0048] FIG. 3 illustrates a front schematic diagram of a motion assistance device according to one embodiment, and FIG. 4 illustrates a left side view of a motion assistance device according to one embodiment.

[0049] Referring to FIGS. 3 and 4, a wearable device (10) according to one embodiment may include a base body (11), a connecting frame (12), a driving module (13), a waist frame (14), a waist belt (15), a leg frame (16), a thigh fastening part (17), and a control button (18). In one embodiment, at least one of these components may be omitted from the wearable device (10), or one or more other components (e.g., a haptic module) may be added.

[0050] In one embodiment, the base body (11) can be positioned on the user's lower back while the user wears the wearable device (10). The base body (11) can be mounted on the user's lower back to provide a cushioning feeling to the user's lower back and support the user's lower back. The base body (11) can be hung over the user's buttocks (hip area) to prevent the wearable device (10) from falling downward due to gravity while the user wears the wearable device (10). The base body (11) can distribute a portion of the weight of the wearable device (10) to the user's lower back while the user wears the wearable device (10). The base body (11) can be connected to a connecting frame (12). Connecting frame connecting elements (not shown) that can be connected to the connecting frame (12) can be provided at both ends of the base body (11).

[0051] In one embodiment, a connecting frame (12) may extend from both ends of a base body (11). A user's lower body may be accommodated on the inside of the connecting frame (12). The connecting frame (12) may include at least one rigid body beam. The connecting frame (12) may extend from one end and the other end of the base body (11), respectively. Each beam may have a curved shape having a predetermined curvature so as to surround a user's lower body. A driving module (13) may be connected to the connecting frame (12).

[0052] In one embodiment, a control module, an inertial measurement device (not shown) (e.g., the inertial measurement device (94) of FIG. 1), a communication module (not shown), and a battery (not shown) may be arranged inside the base body (11). The base body (11) may protect the control module, the inertial measurement device, the communication module, and the battery. The control module may generate a control signal for controlling the operation of the wearable device (10). The control module may include a control circuit including a processor and a memory for controlling an actuator of the drive module (13). The control module may further include a power supply module (not shown) for supplying power from the battery to each component of the wearable device (10).

[0053] In one embodiment, the wearable device (10) may include a sensor module (not shown) that obtains sensor data from one or more sensors. The sensor module may obtain sensor data that changes according to the user's movement. In one embodiment, the sensor module may obtain sensor data including movement information of the user and / or movement information of a component of the wearable device (10). The sensor module may include, but is not limited to, an inertial measurement device (e.g., an inertial measurement device (94) of FIG. 1) for measuring a movement value of the user's upper body or a movement value of the connecting frame (12) and an angle sensor (e.g., an angle sensor (93) of FIG. 1) for measuring a hip joint angle value of the user or a movement value of the leg frame (16). For example, the sensor module may further include at least one of a position sensor, a temperature sensor, a biosignal sensor, or a proximity sensor.

[0054] In one embodiment, a waist frame (14) may be connected to a drive module (13). The waist frame (14) may surround at least a portion of the user's waist. The waist frame (14) may comprise a material that is stiffer than the waist belt (15). The waist frame (14) may support the waist belt (15).

[0055] In one embodiment, the waist belt (15) may be positioned on the front of the user's waist. For example, the waist belt (15) may include a Velcro structure. One of the two waist belts may have a hook surface, and the other waist belt may have a loop surface.

[0056] In one embodiment, the drive module (13) can generate an external force (or torque) applied to the user's body based on a control signal generated by the control module. For example, the drive module (13) can generate an assistive force or a resistive force applied to the user's leg. In one embodiment, the drive module (13) can be located at a location corresponding to the user's hip joint position. The drive module can include an actuator and a joint member. The actuator can provide power transmitted to the joint member. The actuator can include a motor that receives power from a battery and generates power (or torque). When the motor is powered and driven, the motor can generate a force to assist the user's body movement (assisting force) or a force to hinder the body movement (resisting force). In one embodiment, the control module can control the intensity and direction of the force generated by the motor by adjusting the voltage and / or current supplied to the motor.

[0057] In one embodiment, the joint member can receive power from an actuator and apply an external force to the user's body based on the received power. The joint member can be positioned at a location corresponding to the user's joint part. One side of the joint member can be connected to the actuator, and the other side can be connected to the leg frame (16). The joint member can be rotated by the power received from the actuator. An encoder or a hall sensor that can act as an angle sensor for measuring a rotation angle of the joint member (corresponding to the user's joint angle) can be placed on one side of the joint member.

[0058] In one embodiment, the actuator may be disposed laterally of the joint member. The rotational axis of the actuator and the rotational axis of the joint member may be disposed to be spaced apart from each other. However, the present invention is not limited thereto, and the actuator and the joint member may share a rotational axis. In one embodiment, the actuator may be disposed spaced apart from the joint member. In this case, the drive module (13) may further include a power transmission module (not shown) that transmits power from the actuator to the joint member. The power transmission module may be a rotating body such as a gear, or a longitudinal member such as a wire, a cable, a string, a spring, a belt, or a chain. However, the scope of the embodiment is not limited by the positional relationship between the actuator and the joint member and the power transmission structure described above.

[0059] In one embodiment, the leg frame (16) may be positioned along the user's leg (e.g., thigh) when the wearable device (10) is worn on the user's leg. The leg frame (16) may transmit, for example, power (torque) generated by the drive module (13) to the user's thigh. The power generated by the drive module (13) may act as an external force applied to the user's leg movement. One end of the leg frame (16) may be connected to a joint member and rotated, and the other end of the leg frame (16) may be connected to a thigh fastening portion (17), such that the leg frame (16) may transmit the power generated by the drive module (13) to the user's thigh. For example, the leg frame (16) may push or pull the user's thigh. The leg frame (16) may extend along the longitudinal direction of the user's thigh. The leg frame (16) may be bent to wrap at least a portion of the user's thigh. The upper part of the leg frame (16) may cover the side of the thigh, and the lower part of the leg frame (16) may cover the front of the thigh. The central part of the leg frame (16) may have a twisted shape.

[0060] In one embodiment, the thigh fastening member (17) is connected to the leg frame (16) and may secure the leg frame (16) to the thigh. In one embodiment, the thigh frame may include a fastening frame (171) and a wearing strap (172).

[0061] In one embodiment, the fastening frame (171) can apply torque generated from the driving module to the user's thigh. The fastening frame (171) is positioned on one side of the user's thigh and can push or pull the user's thigh. The fastening frame (171) can be positioned, for example, on the front of the user's thigh. The fastening frame (171) can be positioned along the circumference of the user's thigh. The fastening frame (171) can extend in both directions with the other end of the leg frame as the center, and can include a curved surface corresponding to the user's thigh.

[0062] In one embodiment, the wearing strap (172) is connected to the fastening frame (171) and can be fitted to the user's thigh. The wearing strap (172) can surround the remaining portion not covered by the fastening frame (171). The wearing strap (172) can include, for example, an elastic material.

[0063] In one embodiment, the control button (18) may be formed on the drive module (13). For example, the control button (18) may be formed on each of a pair of drive modules (13) or may be formed on only one of the drive modules (13). The control button (18) may be movably connected to the drive module (13). For example, the control button (18) may be tilted relative to the drive module (13) or pressed toward the inside of the drive module (13) by being pressed by a user. The user may set an environment necessary for exercise and walking assistance by operating the control button (18) while wearing the wearable device (10).

[0064] In one embodiment, a user can select an operating mode of the wearable device (10) by pressing a control button (18). The operating modes may include, for example, a walking assistance mode, a movement assistance mode, and a hybrid mode. The walking assistance mode is a mode that provides assistance to the user's body movement to assist the user's walking. The movement assistance mode is a mode that provides resistance to the user's body movement to assist the user's movement. The hybrid mode is a mode that alternately executes the walking assistance mode and the movement assistance mode for a specific period of time. When the control button (18) is pressed, the operating mode may be changed. In one embodiment, different LED colors may be emitted through the wearable device (10) according to each operating mode so that the user can visually confirm the operating mode.

[0065] In one embodiment, the user can adjust the exercise intensity and walking assistance intensity by tilting the control button (18). The intensity can be configured from, for example, level 1, which is the weakest output, to level 5, which is the strongest output. When the control button (18) is tilted in one direction, the intensity level can increase by one level, and when the control button (18) is tilted in the other direction, the intensity level can decrease by one level. In the walking assistance mode, increasing the intensity can increase the assistance force output from the motor, and decreasing the intensity can decrease the assistance force. In the exercise assistance mode, increasing the intensity can increase the resistance force output from the motor, and decreasing the intensity can decrease the resistance force. In one embodiment, different notification sounds can be emitted through the wearable device (10) according to each intensity level so that the user can audibly confirm the intensity.

[0066] FIG. 5 is a perspective view illustrating a control button according to one embodiment, FIG. 6 is a cross-sectional view of the control button taken along the cut line VI-VI of FIG. 5, FIG. 7 is an exploded perspective view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, FIG. 8 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, and illustrating a state in which a center switch is pressed, and FIG. 9 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, and illustrating a state in which a side switch is pressed.

[0067] Referring to FIGS. 5 to 9, a control button (18) according to one embodiment may be tilted relative to the driving module (13) or pressed toward the inside of the driving module (13). In one embodiment, the driving module (13) may include a cover frame (131), a holder (132), a frame hole (133), and a support (134).

[0068] In one embodiment, the cover frame (131) may cover the actuator and joint member. The cover frame (131) may form the exterior of the drive module (13). In one embodiment, '+' and '-' may be displayed on the outside of a portion of the cover frame (131) located around the control button (18). In one embodiment, when the control button (18) is tilted toward '+', the exercise intensity may increase, and when the control button (18) is tilted toward '-', the exercise intensity may decrease. The holder (132) and the support (134) may extend from the inside of the cover frame (131).

[0069] In one embodiment, the holder (132) can support a printed circuit board (95). The holders (132) can be provided in pairs, for example, and can support the printed circuit board (95) in a balanced manner. In one embodiment, the printed circuit board (95) can be connected to the cover frame (131) via a fastening screw (97) and can support a control button (18). A plurality of control switches (96) can be arranged on the printed circuit board (95).

[0070] In one embodiment, a plurality of control switches (96) may be electrically connected to a printed circuit board (95). In one embodiment, the control switches (96) may be deformed by being pressed, transmit a signal to the printed circuit board (95), and then return to their original shape. The plurality of control switches (96) may include a pair of side switches (961) and a center switch (962) positioned between the pair of side switches (961).

[0071] In one embodiment, a pair of side switches (961) can be actuated by each being pressed by tilting the control button (18) in one direction or the other. The center switch (962) can be actuated by being pressed by pressing the control button (18) toward the interior of the drive module (13).

[0072] In one embodiment, the support (134) may support the control button (18). The control button (18) may be pressed by the printed circuit board (95) and supported by the support (134). The supports (134) may be provided in pairs, and the pair of supports (134) may be positioned on opposite sides based on a frame hole (133) formed through the cover frame (131). The control button (18) may include a button body (181) and a guide rib (182). The guide rib (182) will be described later.

[0073] In one embodiment, the button body (181) may be movably connected to the cover frame (131) to press a pair of side switches (961) or a center switch (962). The button body (181) may include a support base (1811), a button protrusion (1812), and a button head (1813).

[0074] In one embodiment, a support base (1811) may be disposed inside a cover frame (131). A pair of shafts (183) may extend from the support base (1811). The pair of shafts (183) may extend along the same straight line. Each of the pair of shafts (183) may be supported by a pair of supports (134). From this structure, the support base (1811) may be tilted relative to the cover frame (131) with the pair of shafts (183) as a rotation axis.

[0075] In one embodiment, the button protrusion (1812) may extend from the support base (1811) toward the printed circuit board (95). The button protrusions (1812) may be provided as a pair, for example. The pair of button protrusions (1812) may each extend from the support base (1811) toward a pair of side switches (961). When the support base (1811) is tilted, the button protrusions (1812) may pressurize and operate the side switches (961).

[0076] In this specification, when it is described that the control button (18) operates the side switch (961) or the center switch (962) by pressing it, this includes not only the case where the control button (18) directly presses the side switch (961) or the center switch (962), but also the case where any configuration (e.g., button seal (19)) arranged between the control button (18) and the side switch (961) or the center switch (962) is pressed by the control button (18) so that the side switch (961) or the center switch (962) is operated.

[0077] In one embodiment, the button head (1813) may protrude from the support base (1811) to the outside of the cover frame (131). The button head (1813) may move integrally with the support base (1811). A user may operate the side switch (961) or the center switch (962) by tilting or pressing the button head (1813).

[0078] In one embodiment, the button head (1813) may be detachably connected to the support base (1811). Based on this structure, the button head (1813) and the support base (1811) may be formed of different materials. For example, the button head (1813) may be formed of a metal material, and the support base (1811) may be formed of a plastic material. This reduces the production cost of the control button (18), and can also reduce maintenance costs.

[0079] In one embodiment, the button head (1813) and the support base (1811) may be connected via a connecting screw (184). The connecting screw (184) may include a screw body (1841) and a screw head (1842). The screw body (1841) may be inserted into the button head (1813) by penetrating the support base (1811). Screw threads may be formed on the surface of the screw body (1841). The screw head (1842) may extend from the screw body (1841) and be positioned between a pair of button projections (1812). The screw head (1842) can be placed between the support base (1811) and the center switch (962). From this structure, the center switch (962) can be pressed only with the screw head (1842) without the need for a separate button protrusion (1812) for pressing the center switch (962).

[0080] In one embodiment, in order to increase the connection strength between the button head (1813) and the support base (1811), it is to be noted that a connection structure such as a step structure or a protruding structure may be additionally formed on the surface where the button head (1813) and the support base (1811) contact each other.

[0081] In one embodiment, a button seal (19) may be placed between the cover frame (131) and the printed circuit board (95). The button seal (19) may block foreign substances that have entered through the frame hole (133) from flowing into the interior of the cover frame (131). The button seal (19) may be formed of a flexible material such as rubber. The fastening screw (97) may pass through the button seal (19), and the button seal (19) may be supported by the printed circuit board (95). In one embodiment, the button seal (19) may be pressed by the control button (18) to pressurize and operate the side switch (961) and the center switch (962). In one embodiment, the button seal (19) may include a cover body (191), a cover base (192), and a base protrusion (193).

[0082] In one embodiment, the cover body (191) can cover the support base (1811). The cover body (191) can seal the gap between the cover frame (131) and the printed circuit board (95). Foreign substances that have entered the interior of the cover frame (131) through the frame hole (133) are blocked from moving into the interior of the cover frame (131) by the cover body (191) and can escape back to the exterior of the cover frame (131) through the frame hole (133).

[0083] In one embodiment, the cover base (192) may protrude from the cover body (191) toward the support base (1811). The cover base (192) may extend, for example, from a surface of the cover body (191) that faces the control switch (96). In one embodiment, the cover base (192) may be provided in three pieces. Each of the three cover bases (192) may be spaced apart from each other and support a pair of button protrusions (1812) and a screw head (1842). From this structure, even if the user tilts or presses the control button (18), the position of the control button (18) can be restored to a basic position (e.g., the position of the control button (18) illustrated in FIG. 5), which is the position when no external force is applied.

[0084] In one embodiment, the base protrusion (193) may extend from the cover base (192) toward the printed circuit board (95). For example, the base protrusion (193) extending from the cover base (192) that supports the button protrusion (1812) may protrude toward the side switch (961). The base protrusion (193) extending from the cover base (192) that supports the screw head (1842) may protrude toward the center switch (962).

[0085] In one embodiment, the base protrusions (193) each extending from a plurality of cover bases (192) may be able to contact the side switch (961) and the center switch (962), respectively. For example, the base protrusions (193) may be kept apart from the side switch (961) and the center switch (962) when the control button (18) is in the basic position. In this state, when a pressure greater than a certain amount is applied, the base protrusions (193) may directly press and operate the side switch (961) or the center switch (962). Alternatively, the base protrusions (193) may be kept in contact with the side switch (961) and the center switch (962) when the control button (18) is in the basic position, and may directly press and operate the side switch (961) or the center switch (962) when a pressure greater than a certain amount is applied.

[0086] In one embodiment, the base protrusion (193) can directly pressurize and operate the side switch (961) and the center switch (962). From this structure, the range of motion of the control button (18) that must be moved to operate the side switch (961) and the center switch (962) can be reduced, and the length of the button protrusion (1812) protruding from the support base (1811) can be reduced. Since the side switch (961) and the center switch (962) are pressed by the relatively soft base protrusion (193), the usability of the control button (18) can be improved.

[0087] FIG. 10 is a perspective view illustrating a cover frame and a frame protrusion according to one embodiment, FIG. 11 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, FIG. 12 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, and illustrating a state in which a center switch is pressed, and FIG. 13 is a cross-sectional view illustrating a control button, a button seal, a printed circuit board, and a control switch according to one embodiment, and illustrating a state in which a side switch is pressed.

[0088] Referring to FIGS. 10 to 13, a control button (18) according to one embodiment may have its movement restricted by a frame protrusion (135) when one of a pair of side switches (961) and a center switch (962) is pressed, so that the remaining buttons are not pressed.

[0089] In one embodiment, a pair of frame protrusions (135) may be formed on the cover frame (131). The pair of frame protrusions (135) may be spaced apart from each other in a first direction (e.g., a direction parallel to the x-axis). As illustrated in FIG. 11, when the control button (18) is in the basic position, the guide rib (182) may be positioned between the pair of frame protrusions (135) with respect to the first direction. In one embodiment, the guide ribs (182) may be provided as a pair. The pair of guide ribs (182) may be formed on opposite sides with respect to the button body (181).

[0090] In one embodiment, when the center switch (962) is pressed, the guide rib (182) may be positioned between a pair of frame protrusions (135), as in FIG. 12. The guide rib (182) may overlap the pair of frame protrusions (135) in the first direction. In this state, when the user tilts the control button (18), the guide rib (182) may contact the frame protrusions (135). When the button body (181) presses the center switch (962) and the guide rib (182) contacts the frame protrusions (135), the button body (181) may be spaced apart from the pair of side switches (961). From this structure, when the center switch (962) is pressed, the tiltable range of the button body (181) is limited by the frame protrusion (135), and a pair of side switches (961) may not be pressed.

[0091] In one embodiment, when the side switch (961) is pressed, one of the frame protrusions (135) of the pair of frame protrusions may be positioned between the guide rib (182) and the center switch (962) as shown in FIG. 13. The guide rib (182) may overlap one of the frame protrusions (135) in a second direction intersecting the first direction (for example, a direction parallel to the z-axis). In this state, when the user presses the control button (18), the guide rib (182) may come into contact with the frame protrusion (135). When the button body (181) presses the side switch (961) and the guide rib (182) comes into contact with the frame protrusion (135), the button body (181) may be spaced apart from the center switch (962). From this structure, when the side switch (961) is pressed, the pressable range of the button body (181) is limited by the frame protrusion (135), and the center switch (962) may not be pressed.

[0092] According to one embodiment, a motion assistance device includes a base body supporting a user's back, a connecting frame connected to the base body, a driving module generating power for assisting the user's motion, a leg frame rotating by receiving power from the driving module, a thigh fastening part connected to the leg frame and worn on the user's thigh, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, and a control button including a button body movably connected to the driving module to press any one of the control switches, and a guide rib extending from the button body, wherein the driving module includes a cover frame connected to the connecting frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, wherein the guide rib can be positioned between the pair of frame protrusions in a state where the button body presses the center switch.

[0093] In one embodiment, the button body can be separated from the pair of side switches while the button body presses the center switch and the guide rib is in contact with one of the pair of frame protrusions.

[0094] In one embodiment, the guide rib may overlap the pair of frame protrusions in the first direction while the button body presses the center switch.

[0095] In one embodiment, when the button body is tilted relative to the cover frame to press one of the pair of side switches, one of the pair of frame protrusions may be positioned between the guide rib and the center switch.

[0096] In one embodiment, the button body can be spaced apart from the center switch while the button body presses one of the pair of side switches and the guide rib is in contact with one of the pair of frame protrusions.

[0097] In one embodiment, the guide rib may overlap the frame protrusion in a second direction intersecting the first direction when the button body is tilted relative to the cover frame to press one of the pair of side switches.

[0098] In one embodiment, the button body may include a support base disposed inside the cover frame, a button head connected to the support base and protruding toward the outside of the cover frame, and a pair of button protrusions each extending from the support base toward the pair of side switches.

[0099] In one embodiment, the control button may further include a connecting screw connecting the support base and the button head.

[0100] In one embodiment, the connecting screw may include a screw body that penetrates the support base and is inserted into the button head, and a screw head that extends from the screw body and is positioned between the pair of button projections.

[0101] In one embodiment, the screw head may protrude from the support base toward the center switch.

[0102] In one embodiment, the device may further include a button seal disposed between the cover frame and the printed circuit board.

[0103] In one embodiment, the button seal may include a cover body covering the support base, a cover base protruding from the cover body toward the support base, and a base protrusion protruding from the cover base toward the printed circuit board.

[0104] In one embodiment, the cover base is provided in a plurality, and each cover base can support the pair of button projections and the screw head.

[0105] In one embodiment, the base protrusions extending from each of the plurality of cover bases can contact the center switch and the side switch, respectively.

[0106] In one embodiment, the guide ribs are provided in a pair, and the pair of guide ribs may be formed on opposite sides with respect to the button body.

[0107] According to one embodiment, a motion assistance device includes a driving module that generates power to assist a user's motion, a leg frame that receives power from the driving module and rotates, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, a button body that is movably connected to the driving module to press any one of the control switches, and a control button including a guide rib that extends from the button body, and a button seal that is provided inside the driving module and supports the button body, wherein the driving module includes a cover frame and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, and the guide rib can be positioned between the pair of frame protrusions in a state where the button body presses the center switch.

[0108] In one embodiment, the button body can be separated from the pair of side switches while the button body presses the center switch and the guide rib is in contact with one of the pair of frame protrusions.

[0109] In one embodiment, the guide rib may overlap the pair of frame protrusions in the first direction while the button body presses the center switch.

[0110] In one embodiment, the guide rib may overlap the frame protrusion in a second direction intersecting the first direction when the button body is tilted relative to the cover frame to press one of the pair of side switches.

[0111] According to one embodiment, a motion assistance device includes a base body supporting a user's back, a connecting frame connected to the base body, a driving module generating power for assisting the user's motion, a leg frame rotating by receiving power from the driving module, a thigh fastening part connected to the leg frame and worn on the user's thigh, a printed circuit board disposed inside the driving module, a control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches, and a control button including a button body movably connected to the driving module to press any one of the control switches, and a guide rib extending from the button body, wherein the driving module includes a cover frame connected to the connecting frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in a first direction, wherein the guide rib overlaps the pair of frame protrusions in the first direction when the button body presses the center switch, and the guide rib causes the button body to tilt with respect to the cover frame so as to press any one of the pair of side switches. In a state where the switch is pressed, the frame protrusion can be overlapped in a second direction intersecting the first direction.

[0112] The various embodiments of the present disclosure and the terminology used therein are not intended to limit the technical features described in the present disclosure to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In the present disclosure, each of the phrases "A or B," "at least one of A and B," "at least one of A or B," "A, B, or C," "at least one of A, B, and C," and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0113] The term "module" used in various embodiments of the present disclosure may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0114] Software may include a computer program, code, instructions, or a combination of one or more of these, and may configure a processing device to perform a desired operation or, independently or collectively, command the processing device. The software and / or data may be permanently or temporarily embodied in any type of machine, component, physical device, virtual equipment, or computer storage medium or device for interpretation by the processing device or for providing instructions or data to the processing device. The software may be distributed across networked computer systems and stored or executed in a distributed manner. The software and data may be stored on a computer-readable recording medium. Various embodiments of the present disclosure may be implemented as software comprising one or more instructions stored on a storage medium (e.g., memory) that can be read by a machine. For example, a processor of the device may recall at least one of the one or more instructions stored from the storage medium and execute it. This enables the device to operate to perform at least one function in accordance with the recalled at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and this term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily in the storage medium.

[0115] According to one embodiment, the method according to various embodiments disclosed in the present disclosure may be provided as included in a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0116] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. Base body that supports the user's back; A connecting frame connected to the above base body; A drive module that generates power to assist the user's movements; A leg frame that rotates by receiving power from the above driving module; A thigh fastening member connected to the above leg frame and worn on the user's thigh; A printed circuit board disposed inside the above driving module; A control switch including a pair of side switches connected to the printed circuit board and a center switch disposed between the pair of side switches; and A control button comprising a button body movably connected to the driving module to press any one of the control switches, and a guide rib extending from the button body. Including, The above driving module includes a cover frame connected to the connecting frame, and a pair of frame protrusions formed on the cover frame and spaced apart from each other in the first direction, The above guide rib is a motion assist device located between the pair of frame protrusions when the button body presses the center switch.

2. In paragraph 1, When the button body presses the center switch and the guide rib is in contact with one of the pair of frame projections, An exercise assist device, wherein the above button body is separated from the pair of side switches.

3. In paragraph 1, A motion assist device wherein the guide rib overlaps the pair of frame protrusions in the first direction when the button body presses the center switch.

4. In paragraph 1, In a state where the above button body is tilted with respect to the cover frame to press one of the pair of side switches, A motion assist device, wherein one of the pair of frame projections is located between the guide rib and the center switch.

5. In paragraph 4, When the button body presses one of the pair of side switches and the guide rib contacts one of the pair of frame protrusions, An exercise assist device, wherein the button body is spaced apart from the center switch.

6. In paragraph 4, A motion assist device wherein the guide rib overlaps the frame protrusion in a second direction intersecting the first direction when the button body is tilted relative to the cover frame to press one of the pair of side switches.

7. In paragraph 1, The above button body, A support base placed inside the above cover frame; A button head connected to the support base and protruding toward the outside of the cover frame; and A motion assist device comprising a pair of button projections each extending from the support base toward the pair of side switches.

8. In paragraph 7, The above control buttons are, An exercise assist device further comprising a connecting screw connecting the support base and the button head.

9. In paragraph 8, The above connecting screw, A screw body inserted into the button head through the support base; and A motion assist device comprising a screw head extending from the screw body and positioned between the pair of button projections.

10. In paragraph 9, The above screw head, A motion assist device protruding from the above support base toward the above center switch.

11. In paragraph 9, An exercise assist device further comprising a button thread disposed between the cover frame and the printed circuit board.

12. In paragraph 11, The above button thread, A cover body covering the above support base; A cover base protruding from the cover body toward the support base; and A motion assist device comprising a base protrusion protruding from the cover base toward the printed circuit board.

13. In paragraph 12, The above cover base is provided in multiple pieces, Each cover base is a motion assist device that supports the pair of button projections and the screw head.

14. In paragraph 13, A motion assist device, wherein the base protrusions extending from the plurality of cover bases are each contactable with the center switch and the side switch.

15. In paragraph 1, The above guide ribs are provided in pairs, A motion assist device wherein the above pair of guide ribs are formed on opposite sides of the button body.

Images