Body care device

Abstract

A body care device is disclosed. The body care device of the present invention comprises a seat frame, a main frame, and a seat drive unit. A plurality of rollers are rotatably coupled to the seat frame. The main frame comprises a rolling surface on which the rollers roll in the front-rear direction. The seat drive unit is provided in the main frame to move the former forward and backward. The rolling surface is curved, the height thereof varying in the front-rear direction.

Description

Body care devices

[0001] The present invention relates to a body care device, and more particularly, to a body care device capable of providing a massage by physically stimulating the body of a seated user.

[0002] With the recent aging of society, awareness of health management, health maintenance, and health promotion is increasing across all age groups. Consequently, many people are utilizing facilities such as medical facilities or sports clubs to manage, maintain, or improve their health.

[0003] Additionally, many people are striving to recover from fatigue and relieve stress, just as they are striving to maintain or improve their health and fitness. To this end, various body care devices, such as massagers, have been developed and are widely used in everyday life.

[0004] Massage is a medical auxiliary therapy that promotes blood circulation and relieves fatigue by using hands or special tools to stroke, knead, press, pull, tap, or move the body. Massage equipment is a mechanical device that performs massage, and various mechanical elements are incorporated into massage equipment to ensure effective results.

[0005] Among these, the massage chair is an electric chair that massages the body on a seated chair structure. Recently, interest in it is increasing not only among the middle-aged and elderly, but also among office workers suffering from chronic fatigue and stress, and young women who are interested in beauty and dieting.

[0006] Korean Patent No. 2394632 (hereinafter referred to as “Prior Document 1”) discloses a “massage chair with stretch functions,” wherein the stretching massage chair includes an upper body, a seat, and a leg section.

[0007] The upper body supports the user's back. The seat is hinged to the lower part of the upper body and supports the user's buttocks. The leg parts are hinged to the seat and support or fix the user's legs. The upper body is rotatably connected to the support frame by a hinge axis, and rotates rearward around the hinge axis by the driving force of the main actuator to form an inverted posture, a chair posture, or a horizontal posture.

[0008] According to the aforementioned prior art document 1, the legs of the massage chair can be extended and the upper body can be tilted backwards to allow the user to lie down. However, the process of the upper body tilting backward takes up a lot of space in the rear of the massage chair. Furthermore, when in the chair position, the seat is not tilted slightly backward but is parallel to the floor, which reduces the sitting comfort.

[0009] With regard to the reclining function, Korean Patent No. 2675183 (hereinafter referred to as “prior document 2”) discloses a “sofa recliner device (RECLINER SOFA) using a combination of steel frames,” wherein the sofa recliner device includes a seat portion, an upper body support portion, a leg support portion, a mechanism operating portion, and a lower steel frame.

[0010] The seat supports the user's hips and thighs. The upper body support supports the user's back and head. The leg support supports the user's calves. The mechanism operating unit adjusts the inclination of the seat, upper body support, and leg support. The lower steel frame supports the mechanism operating unit. The lower steel frame includes multiple leg sections.

[0011] According to the aforementioned prior art document 2, the leg rest extends and the upper body rest tilts backwards by the mechanism, allowing the user to lean back in a comfortable position. However, the upper body rest protrudes toward the back of the sofa during the tilting process. Furthermore, since the upper body rest does not tilt backwards 180 degrees, the user is limited to only leaning backwards, unable to fully lie down.

[0012] The present invention aims to solve the above problems of a body care device that provides care for the body of a seated user.

[0013] Specifically, the purpose is to provide a body care device that can be reclining regardless of whether there is free space behind the backrest by optimizing the reclining structure.

[0014] In addition, the present invention aims to provide a body care device that can recline up to 180° by optimizing the operating structure of the seat and backrest.

[0015] In addition, the present invention aims to provide a body care device that can smoothly change the angle of the seat when using the reclining function and provide a comfortable seating experience to the user.

[0016]

[0017] The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0018] The body care device described in the present application may include a seat frame, a body frame, and a seat driving unit.

[0019] A plurality of rollers can be rotatably connected to the seat frame.

[0020] The main body frame may include a running surface along which rollers run in a forward-backward direction.

[0021] The seat drive unit is provided on the main body frame and can move the seat frame forward and backward.

[0022] The driving surface can form a curved surface with different heights in the front-rear direction.

[0023] The driving surface can form a convex surface upwards based on the front-rear direction.

[0024] The highest point of the running surface can be located between the front and rear ends of the running surface.

[0025] The highest point of the running surface may be closer to the front end than the rear end of the running surface.

[0026] The rollers may include a first roller and a second roller. The second roller may be positioned on the running surface behind the first roller.

[0027] The driving surface may include a first driving surface and a second driving surface.

[0028] The first running surface and the second running surface can be spaced apart from each other in the left-right direction. The rollers can be respectively seated on the first running surface and the second running surface.

[0029] A guide disc may be attached to the roller. The guide disc may have a larger radius than the roller.

[0030] The body frame may include a guide surface.

[0031] The guide surface can be formed in a shape that is bent downward from the driving surface. The guide surface can face one side of the guide disc in the left and right directions.

[0032] The seat drive unit can be rotatably connected to a first point of the main body frame and a second point of the seat frame.

[0033] The seat drive unit may be formed of a linear actuator that extends between a first point and a second point.

[0034] The body care device described in the present application may include a backrest frame and a backrest driving unit.

[0035] The backrest frame can be rotatably connected to the seat frame about a frame axis so that it can be erected or reclined.

[0036] The backrest drive unit is provided on the seat frame and can rotate the backrest frame around the frame axis.

[0037] The body care device described in the present application may include a control unit.

[0038] The control unit can simultaneously control the seat drive unit and the backrest drive unit so that the backrest frame is laid back when the seat frame moves forward and the backrest frame is raised when the seat frame moves backward.

[0039] The backrest drive unit can be rotatably connected to a first point of the seat frame and a second point of the backrest frame.

[0040] The backrest drive unit may be formed of a linear actuator that extends between a first point and a second point.

[0041] A plurality of moving members may be mounted on the seat frame.

[0042] The main body frame can form a moving section in which the moving members move forward and backward.

[0043] The seat drive unit is provided on the main body frame and can move the seat frame forward and backward.

[0044] The moving section can form a curve with a height that changes in the forward and backward directions.

[0045] The trailing edge of a moving section may be lower than the leading edge of the moving section.

[0046] The highest point of a moving segment may be located between the forward and backward points of the moving segment. The highest point of a moving segment may be closer to the forward point than to the backward point of the moving segment.

[0047] The body care device described in the present application may include a seat cover.

[0048] The seat cover can be attached to the seat frame. The seat cover can form a buttock resting surface.

[0049] As the moving members move from the rear end of the travel section to the front end, the angle between the hip rest surface and the horizontal plane may decrease.

[0050] According to a body care device according to an embodiment of the present invention, a guide may form a movement section along which movable members move forward and backward. The movement section may refer to a path or space along which the first roller and the second roller move. The control unit may control the seat drive unit so that the seat changes from a first posture to a second posture and vice versa. When the second roller is positioned at the rear end of the movement section, the seat may be positioned at the first posture. The first posture may refer to a state in which the backrest is upright. A user may sit on the body care device in the first posture. The user may receive body care in the first posture. When the first roller is positioned at the front end of the movement section, the seat may be positioned at the second posture. The second posture may refer to a state in which the backrest is lying down. The user may lie on the body care device in the second posture. The user may receive body care in the second posture.

[0051] According to a body care device according to an embodiment of the present invention, the base can support the loads of the seat and backrest through the running surface. The loads of the seat and backrest can be applied to the running surface through the first roller and the second roller. Accordingly, the first roller and the second roller can remain in a state of being secured to the running surface.

[0052] According to a body care device according to an embodiment of the present invention, a seat drive unit can push a seat frame forward or pull it backward. At this time, the first roller and the second roller can run forward and backward along a running surface on both left and right sides of the main body frame. Therefore, the seat unit can run forward and backward. At this time, the guide surface can face one side of a guide disk on both left and right sides of the main body frame with a small gap in the left and right direction. Therefore, when the first roller and the second roller run forward and backward along the running surface on both left and right sides of the main body frame, the left and right movement of the first roller and the second roller can be blocked. Therefore, the left and right movement and rotation of the seat unit can be blocked.

[0053] According to a body care device according to an embodiment of the present invention, the guide may include a running surface. The running surface may form the upper surface of a moving section. The running surface may form the lower surface of the moving section. The rollers may be spaced apart from the running surface by a small gap while seated on the running surface. Accordingly, even if a user sitting on the seat moves his / her body or an external force is transmitted to the seat, the vertical movement of the first roller and the second roller can be blocked. Accordingly, the vertical movement and rotation of the seat can be blocked.

[0054] According to a body care device according to an embodiment of the present invention, in a first posture of a seat, the second roller can be positioned lower than the first roller. Therefore, with the central axis of the first roller as the center, an axial connection line in the first posture can form an angle of less than 0° with the Y-axis. A user can sit on the body care device in the first posture. The user can receive body care in the first posture. The axial connection line can be parallel to a buttocks resting surface. Therefore, in the first posture, the buttocks resting surface can form an angle of less than 0° (for example, -7°) with the Y-axis. Therefore, the buttocks resting surface can form a downward slope toward the rear. Therefore, the body weight of a user sitting on the seat in the first posture can be distributed to the seat and the backrest rather than being concentrated on the seat. Therefore, a comfortable sitting feeling can be provided to a user sitting on the seat in the first posture.

[0055] According to a body care device according to an embodiment of the present invention, the moving section can form a curved shape whose height varies in the forward-backward direction. The running surface can form a curved surface with different heights in the forward-backward direction. Therefore, when the posture of the seat part changes from a first posture to a second posture and vice versa, the angle of the buttocks resting surface can smoothly change as the first roller and the second roller run along the curved surface (curved shape). Therefore, a comfortable seating experience can be provided to a user sitting on the seat part.

[0056] According to a body care device according to an embodiment of the present invention, the running surface can form a curved surface that is convex upward with respect to the front-back direction. Therefore, as the movable members move from the rear end point of the moving section to the front end point, the angle between the buttocks resting surface and the horizontal plane can decrease. Conversely, as the movable members move from the front end point to the rear end point of the moving section, the angle between the buttocks resting surface and the horizontal plane can increase. That is, when the posture of the seat changes from the first posture to the second posture and from the second posture to the first posture, the buttocks resting surface can smoothly rotate to both sides as the first roller and the second roller run along the curved surface. Therefore, a comfortable sitting feeling can be provided to a user sitting on the seat.

[0057] According to a body care device according to an embodiment of the present invention, the running surface can form a constant curvature in the forward-backward direction. Accordingly, the moving speed and the rotational speed of the seat portion can be proportional to each other. Accordingly, when the posture of the seat portion changes from the first posture to the second posture and from the second posture to the first posture, the first roller and the second roller travel at a constant speed along the curved surface (curved shape), so that the buttocks resting surface can smoothly rotate at a constant angular speed. Therefore, a comfortable sitting feeling can be provided to a user sitting on the seat portion.

[0058] According to a body care device according to an embodiment of the present invention, the highest point of the moving section may be located between the front end and the rear end of the moving section. In addition, the highest point of the running surface may be located between the front and rear ends of the running surface. Accordingly, the first roller may be located in front of the highest point of the running surface (moving section), and the second roller may be located behind the highest point of the running surface (moving section). At this time, the central axis of the first roller and the central axis of the second roller may form the same height, and the axis connection line may form an angle of 0° with the Y-axis. At this time, the seat part may form a second posture. Accordingly, when the posture of the seat part changes from the first posture to the second posture and from the second posture to the first posture, the angle between the buttocks rest surface and the Y-axis may smoothly rotate between less than 0° (for example, -7°) and 0°. Therefore, a comfortable seating feeling can be provided to a user sitting on the seat part.

[0059] According to a body care device according to an embodiment of the present invention, the highest point of the moving section may be closer to the front end than the rear end of the moving section. The highest point of the running surface may be closer to the front end than the rear end of the running surface. Therefore, as the second roller moves to the rear end of the moving section, the axis connection line may form an angle of less than 0° with the Y-axis. And, as the first roller moves to the front end of the moving section, the axis connection line may form an angle of 0° with the Y-axis. Therefore, the front-back length of the moving section (running surface) may be compacted. Therefore, the front-back length of the guide may be compacted.

[0060] According to a body care device according to an embodiment of the present invention, the rear end point of the moving section may be lower than the shear point of the moving section. Therefore, even if the running surface forms a constant curvature, the highest point of the moving section may be closer to the shear point than the rear end point of the moving section. Therefore, even if the running surface forms a constant curvature, as the second roller moves to the rear end point of the moving section, the axis connection line may form an angle of less than 0° with the Y-axis. And, as the first roller moves to the shear point of the moving section, the axis connection line may form an angle of 0° with the Y-axis. Therefore, even if the running surface forms a constant curvature, the length of the guide in the front-back direction can be compact.

[0061] According to a body care device according to an embodiment of the present invention, the control unit can simultaneously control the seat drive unit and the backrest drive unit so that the seat unit and the backrest unit change postures from a first posture to a second posture and from the second posture to the first posture. The control unit can simultaneously control the seat drive unit and the backrest drive unit so that the backrest frame reclines when the seat frame moves forward and the backrest frame stands up when the seat frame moves backward.

[0062] According to a body care device according to an embodiment of the present invention, in a first posture, the buttocks resting surface may form a downward slope toward the rear, and the second resting surface may be inclined obliquely toward the rear. The user may sit on the body care device in the first posture. The user may receive body care in the first posture. In the first posture, the angle between the buttocks resting surface and the second resting surface may be slightly greater than 90°. Therefore, the body weight of the user sitting on the seat in the first posture may not be concentrated on the seat, but may be distributed across the seat and the backrest. Therefore, a comfortable sitting feeling can be provided to the user sitting on the seat in the first posture.

[0063] According to a body care device according to an embodiment of the present invention, in a second posture, the second seating surface of the backrest can form an angle of 0° with the Y axis. In the second posture, the buttocks seating surface can form an angle of 0° with the Y axis. Therefore, in the second posture, the buttocks seating surface and the second seating surface can form an angle of 0° with the Y axis. In the second posture, the buttocks seating surface and the second seating surface can be located on the same plane. The user can lie down on the body care device in the second posture. The user can receive body care in the second posture. Therefore, a comfortable sitting feeling can be provided to the user lying on the first seating surface and the second seating surface in the second posture.

[0064] According to a body care device according to an embodiment of the present invention, when the posture of the backrest changes from a first posture to a second posture and from the second posture to the first posture, the angle between the second resting surface and the Y-axis can smoothly rotate between about +60° and 0°. When the posture of the seat portion changes from the first posture to the second posture and from the second posture to the first posture, the angle between the buttocks resting surface and the Y-axis can smoothly rotate between less than 0° (for example, -7°) and 0°. Therefore, except for the second posture, the buttocks resting surface can always form a downward slope toward the rear. Therefore, when the postures of the seat portion and the backrest portion change from the first posture to the second posture and from the second posture to the first posture, the user's body weight can be distributed to the seat portion and the backrest portion rather than being concentrated on the seat portion. Therefore, when the posture of the seat and backrest changes from the first posture to the second posture and from the second posture to the first posture, it can provide a comfortable seating feeling to the user.

[0065] According to a body care device according to an embodiment of the present invention, when the posture of the seat and the backrest changes from a first posture to a second posture, the seat can be moved forward by the seat drive unit. When the posture of the seat and the backrest changes from the first posture to the second posture, the control unit can simultaneously control the seat drive unit and the backrest drive unit so that the rear end of the backrest does not move rearward. Alternatively, when the posture of the seat and the backrest changes from the first posture to the second posture, the control unit can simultaneously control the seat drive unit and the backrest drive unit so that the rear end of the backrest moves rearward only within an allowable distance. Here, the allowable distance may mean a distance at which the rear end of the backrest does not contact an object behind the backrest, such as a canopy. Therefore, when the posture of the seat and the backrest changes from the first posture to the second posture, the backrest may not contact the canopy. Therefore, reclining can be performed regardless of whether there is free space behind the backrest.

[0066] FIG. 1 is a perspective view of a body care device according to an embodiment of the present invention viewed from the front upper side, showing a state in which the seat and backrest are positioned in a first posture.

[0067] Fig. 2 is a drawing showing the body care device of Fig. 1 with the main body cover, canopy, and canopy drive unit removed.

[0068] Fig. 3 is a drawing showing the body care device of Fig. 2 with the seat cover and backrest cover removed.

[0069] Fig. 4 is a partial enlarged view of the body care device of Fig. 3, showing the guide separated from the base.

[0070] Fig. 5 is a partial cross-sectional view showing the roller of Fig. 4 seated on the running surface.

[0071] Fig. 6 is a perspective view of the body care device of Fig. 3 viewed from the lower side.

[0072] FIG. 7 is a drawing schematically showing a control unit, a seat drive unit, a backrest drive unit, and a canopy drive unit of a body care device according to an embodiment of the present invention.

[0073] Fig. 8 is a cross-sectional view of the body care device of Fig. 3, showing the seat drive unit.

[0074] Fig. 9 is a cross-sectional view of the body care device of Fig. 3, showing the backrest driving unit.

[0075] Fig. 10 is a cross-sectional view of a body care device according to an embodiment of the present invention, showing a state in which the seat and backrest are positioned in a second posture.

[0076] Fig. 11 is a side view showing the roller of Fig. 4 in a state where it is seated on the running surface, and is a drawing showing the state where the second roller is located at the rear end of the moving section.

[0077] Fig. 12 is a side view showing the roller of Fig. 4 in a state where it is seated on a running surface, and is a drawing showing the state where the first roller is located at a shear point of the moving section.

[0078] Fig. 13 is a drawing showing a state in which a canopy drive unit is installed in a body care device according to an embodiment of the present invention.

[0079] Fig. 14 is a drawing showing the main body frame, seat frame, backrest frame, canopy, and canopy drive unit of the body care device of Fig. 13.

[0080] Fig. 15 is a drawing showing the canopy drive unit of the body care device of Fig. 13 in more detail.

[0081] Figures 16 to 19 are drawings showing the driving process of a canopy in a body care device according to an embodiment of the present invention.

[0082] FIGS. 20 to 22 are drawings showing the driving process of the backrest frame and canopy in a body care device according to an embodiment of the present invention.

[0083] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. However, in describing the present invention, descriptions of functions or configurations already known will be omitted to clarify the gist of the present invention.

[0084] The X direction, the Y direction, and the Z direction described in the embodiments of the present invention may each be directions that are orthogonal to each other. Each of the X direction and the Y direction may be a direction parallel to the horizontal direction, and the Z direction may be a direction parallel to the vertical direction. When the X direction is a direction parallel to the left-right direction, the Y direction may be a direction parallel to the front-back direction. When the X direction is a direction parallel to the front-back direction, the Y direction may be a direction parallel to the left-right direction.

[0085] Hereinafter, front may refer to the direction pointed by the X-axis arrow, and back may refer to the opposite side to the direction pointed by the X-axis arrow. Hereinafter, top may refer to the direction pointed by the Z-axis arrow, and bottom may refer to the opposite side to the direction pointed by the Z-axis arrow.

[0086]

[0087] FIG. 1 is a perspective view of a body care device (1000) according to an embodiment of the present invention, viewed from the front upper side, showing a state in which a seat portion (200) and a backrest portion (300) are positioned in a first position.

[0088] The first position may refer to a state in which the backrest (300) is upright. The user can sit on the body care device (1000) in the first position. The user can receive body care in the first position.

[0089] A body care device (1000) according to an embodiment of the present invention may be a massage chair that provides care for the body of a seated user.

[0090] A body care device (1000) according to an embodiment of the present invention may include a main body (100), a seat portion (200), a backrest portion (300), and a canopy (400).

[0091] When using the body care device (1000), the seat (200) can support the lower body including the user's buttocks. The seat (200) can have a front-to-back length longer than a left-to-right width.

[0092] FIG. 2 is a drawing showing a state in which the main body cover (120), canopy (400), and canopy drive unit (700) are removed from the body care device (1000) of FIG. 1.

[0093] FIG. 3 is a drawing showing a state in which the seat cover (220) and backrest cover (320) are removed from the body care device (1000) of FIG. 2.

[0094] The seat part (200) may include a seat frame (210) and a seat cover (220).

[0095] The seat frame (210) may form the skeleton of the seat section (200). The seat frame (210) may have a roughly rectangular shape. The seat frame (210) may be manufactured by joining a plurality of angle pipes together. The seat frame (210) may include metal and / or plastic materials.

[0096] The seat cover (220) may be coupled to the seat frame (210). The seat cover (220) may form a first seating surface (221). The first seating surface (221) may refer to a surface on which the lower body including the user's buttocks is seated. The first seating surface (221) may include a surface on which the user's buttocks is seated (hereinafter referred to as "buttocks seating surface (221a)"). The seat cover (220) may include plastic, fabric, natural leather, and / or artificial leather materials.

[0097] The seat cover (220) may include a top cover (220a) and a side cover (220b).

[0098] The upper surface cover (220a) can be formed to cover the upper surface of the seat frame (210). The upper surface of the upper surface cover (220a) can form a first seating surface (221). The upper surface cover (220a) can block external exposure of the seat frame (210) through the upper surface of the seat portion (200).

[0099] The side cover (220b) can be formed to cover the side of the seat frame (210). The side cover (220b) can form both side surfaces of the seat portion (200). The side cover (220b) can block external exposure of the seat frame (210) through both side surfaces of the seat portion (200).

[0100] The seat part (200) may include a seat massage part.

[0101] The seat massage unit can be connected to the seat frame (210) and / or the seat cover (220) under the upper surface cover (220a). The seat massage unit can massage the lower body including the buttocks of a user seated on the first seating surface (221). The first seating surface (221) can include a soft material such as cloth, natural leather, and / or artificial leather. The seat massage unit can tap, knead, roll, and apply acupressure to the lower body of the user through the first seating surface (221).

[0102] The body care device (1000) may include a control unit (800) (see FIG. 7). The control unit (800) may control a seat massage unit.

[0103] FIG. 4 is a partial enlarged view of the body care device (1000) of FIG. 3, showing a state in which the guide (112) is separated from the base (111).

[0104] The main body (100) can support the seat (200), backrest (300), and canopy (400) on the floor surface (ground). The main body (100) can have a front-to-back length longer than a left-right width.

[0105] The main body (100) may include a main body frame (110) and a main body cover (120).

[0106] The main body frame (110) can form the skeleton of the main body (100). The main body frame (110) can include a base (111).

[0107] The base (111) can form a roughly rectangular frame shape. The main body frame (110) can be manufactured by joining a plurality of angle pipes together. The main body frame (110) can include a metal and / or plastic material. A plurality of wheels (130) can be rotatably joined to the lower part of the main body frame (110). The main body (100) can slide on the floor surface by using the plurality of wheels (130).

[0108] The main body cover (120) can be coupled to the main body frame (110). The main body cover (120) can be formed to cover the front, rear, and side surfaces of the main body frame (110). The main body cover (120) can block external exposure of the main body frame (110) through the front, rear, and side surfaces of the main body (100).

[0109] The main body cover (120) may be formed to cover a portion of the side and rear of the seat portion (200) and the backrest portion (300). The main body cover (120) may form armrests on both sides of the seat portion (200) on which the user's arms may rest. The main body cover (120) may include plastic, cloth, natural leather, and / or artificial leather materials.

[0110] The canopy (400) can be deployed according to the user's needs to block light from above the user's head.

[0111] When using the body care device (1000), the backrest (300) can support the user's upper body, including the head, neck, back, and waist. The backrest (300) can have a vertical length longer than the left-right width.

[0112] The backrest part (300) may include a backrest frame (310) and a backrest cover (320).

[0113] The backrest frame (310) may form the skeleton of the backrest portion (300). The backrest frame (310) may have a roughly square frame shape. The backrest frame (310) may be manufactured by joining a plurality of angle pipes together. The backrest frame (310) may include metal and / or plastic materials.

[0114] The backrest frame (310) can be rotatably connected to the seat frame (210) about a frame axis (311) so that it can be erected or laid back. The frame axis (311) can be provided as a cylindrical shaft or sleeve. The frame axis (311) can be parallel to the X-axis.

[0115] A pair of frame axles (311) may be provided. The frame axles (311) may be rotatably coupled to the lower left and right sides of the backrest frame (310) and may be coupled to the rear left and right sides of the seat frame (210) using bolts or the like. Alternatively, the frame axles (311) may be rotatably coupled to the rear left and right sides of the seat frame (210) and may be coupled to the lower left and right sides of the backrest frame (310) using bolts or the like.

[0116] The backrest cover (320) may be coupled to the backrest frame (310). The front surface of the backrest cover (320) may form a second seating surface (321). The second seating surface (321) may refer to a surface on which the user's upper body, including the back and waist, is seated. The backrest cover (320) may include plastic, fabric, natural leather, and / or artificial leather materials.

[0117] The backrest cover (320) may include a front cover (320a) and a side cover (320b).

[0118] The front cover (320a) can be formed to cover the front of the backrest frame (310). The front cover (320a) can form a second mounting surface (321). The front cover (320a) can block external exposure of the backrest frame (310) through the front of the backrest portion (300).

[0119] The side cover (320b) can be formed to cover the side of the backrest frame (310). The side cover (320b) can form both side surfaces of the backrest portion (300). The side cover (320b) can block external exposure of the backrest frame (310) through both side surfaces of the backrest portion (300).

[0120] The backrest (300) may include a backrest massage part.

[0121] The backrest massage unit can be connected to the backrest frame (310) and / or the backrest cover (320) from the back of the front cover (320a). The backrest massage unit can massage the upper body, including the back and waist, of a user seated on the second seating surface (321). The second seating surface (321) can include a soft material such as cloth, natural leather, and / or artificial leather. The backrest massage unit can tap, knead, roll, and apply acupressure to the user's upper body through the second seating surface (321).

[0122] The body care device (1000) may include a control unit (800) (see FIG. 7). The control unit (800) may control a backrest massage unit.

[0123] The backrest (300) may include a headrest (330). The headrest (330) may be positioned on the upper portion of the backrest (300). When the body care device (1000) is used, the headrest (330) may support the user's head and neck, etc. The user may adjust the angle of the headrest (330), etc., as needed. The headrest (330) may include a head massage unit that massages the user's head and neck, etc. The control unit (800) may control the head massage unit.

[0124] Fig. 5 is a partial cross-sectional view showing a state in which the roller (231) of Fig. 4 is seated on the running surface (113).

[0125] A plurality of moving members (230) may be mounted on the seat frame (210). The moving members (230) may include a roller (231), a roller shaft (232), and a guide disk (233).

[0126] A plurality of rollers (231) may be rotatably coupled to a seat frame (210). A roller shaft (232) may be coupled to the seat frame (210), and the rollers (231) may be rotatably coupled to the roller shaft (232). The longitudinal direction of the roller shaft (232) may be parallel to the X-axis.

[0127] A guide disk (233) can be combined with the roller (231). The guide disk (233) can form a disk (disk) shape with a radius larger than that of the roller (231) centered on the roller shaft (232).

[0128] The rollers (231) may include a first roller (231a) and a second roller (231b). The first roller (231a) may be rotatably coupled to the left and right sides of the seat frame (210), respectively. The second roller (231b) may be rotatably coupled to the left and right sides of the seat frame (210), respectively, at a position behind the first roller (231a).

[0129] The main body frame (110) may include a guide (112). The guide (112) may form a block or panel shape that is approximately long in the front-back direction. The guide (112) may include a metal and / or plastic material.

[0130] The guide (112) may include a first guide (112a) and a second guide (112b).

[0131] The first guide (112a) may be coupled to the upper right side of the base (111). The second guide (112b) may be coupled to the upper left side of the base (111). The first guide (112a) and the second guide (112b) may form a symmetrical shape with respect to the XZ plane. Hereinafter, the guide (112) may refer to the first guide (112a) and the second guide (112b).

[0132] The guide (112) can form a running surface (113) on which the rollers (231) run in the forward and backward directions. The first guide (112a) can form a first running surface (113a). The second guide (112b) can form a second running surface (113b).

[0133] The first running surface (113a) and the second running surface (113b) may be spaced apart from each other in the left-right direction. The first running surface (113a) and the second running surface (113b) may form a symmetrical shape with respect to the XZ plane. Hereinafter, the running surface (113) may refer to the first running surface (113a) and the second running surface (113b).

[0134] The guide (112) can form a guide surface (117) that is bent downward from the driving surface (113). The guide surface (117) can form a surface that faces one side of the guide disk (233) in the left-right direction.

[0135] The guide surface of the first guide (112a) (hereinafter referred to as the "first guide surface") and the guide surface of the second guide (112b) (hereinafter referred to as the "second guide surface") may be spaced apart from each other in the left-right direction. The first guide surface and the second guide surface may form a symmetrical shape with respect to the XZ plane. Hereinafter, the guide surface (117) may mean the first guide surface and the second guide surface.

[0136] The first roller (231a) and the second roller (231b) can be mounted on the running surface (113) on the left and right sides of the main body frame (110), respectively. The second roller (231b) can be mounted on the running surface (113) behind the first roller (231a). The first roller (231a) and the second roller (231b) located on the right side of the seat frame (210) can be mounted on the first running surface (113a). The first roller (231a) and the second roller (231b) located on the left side of the seat frame (210) can be mounted on the second running surface (113b).

[0137] The base (111) can support the load of the seat (200) and the backrest (300) through the running surface (113). The load of the seat (200) and the backrest (300) can be applied to the running surface (113) through the first roller (231a) and the second roller (231b). Therefore, the first roller (231a) and the second roller (231b) can maintain a state of being seated on the running surface (113).

[0138] Figure 6 is a perspective view of the body care device (1000) of Figure 3 viewed from the lower side.

[0139] FIG. 7 is a drawing schematically showing a control unit (800), a seat drive unit (500), a backrest drive unit (600), and a canopy drive unit (700) of a body care device (1000) according to an embodiment of the present invention.

[0140] A body care device (1000) according to an embodiment of the present invention may include a seat driving unit (500), a backrest driving unit (600), a canopy driving unit (700), and a control unit (800).

[0141] The seat drive unit (500) is provided on the main body frame (110) and is configured to move the seat frame (210) in the forward and backward directions.

[0142] The backrest drive unit (600) is provided on the seat frame (210) and is configured to rotate the backrest frame (310) around the frame axis (311).

[0143] The canopy drive unit (700) is configured to connect the main body frame (110) and the canopy (400) and rotate the canopy (400) relative to the main body frame (110).

[0144] The control unit (800) can control the seat drive unit (500), the backrest drive unit (600), and the canopy drive unit (700).

[0145] The body care device (1000) may include various sensors. When a user sits on the seat (200), the sensor may detect this. The control unit (800) may receive a signal from the sensor and automatically initiate operation.

[0146] When a user sits on the seat (200), various sensors can measure body temperature, body fat, pulse, blood pressure, etc. The control unit (800) can receive signals from various sensors to diagnose the user's health condition and adjust the massage pattern or intensity accordingly.

[0147] The body care device (1000) may include a remote control. The remote control may transmit signals to the control unit (800). The user may operate the remote control to precisely set / control massage movements, massage range, massage location, massage speed, massage intensity, etc.

[0148] The main body cover (120) may include a first magnetic part. The remote control may include a second magnetic part. The first magnetic part may include a permanent magnet. The second magnetic part may include a permanent magnet or a ferromagnetic material. The remote control may be attached to the main body cover (120) by the magnetic force of the first magnetic part and the second magnetic part. The first magnetic part may be located on or around the armrest.

[0149] Fig. 8 is a cross-sectional view of the body care device (1000) of Fig. 3, showing the seat drive unit (500).

[0150] Fig. 9 is a cross-sectional view of the body care device (1000) of Fig. 3, showing the backrest driving unit (600).

[0151] Figures 8 and 9 are drawings showing a state in which the seat (200) and the backrest (300) are positioned in a first position. The first position may refer to a state in which the backrest (300) is upright. The user can sit on the body care device (1000) in the first position. The user can receive body care in the first position.

[0152] The seat drive unit (500) may be rotatably connected to the first a point (501) of the main body frame (110) and the second a point (502) of the seat frame (210), and may be formed as a linear actuator that extends between the first a point (501) and the second a point (502).

[0153] The seat drive unit (500) may be formed of a linear motor having a structure in which a rotary AC motor is extended in a straight line. Alternatively, the seat drive unit (500) may be formed of a structure using a rotary motor and a rack and pinion mechanism.

[0154] The seat drive unit (500) may include a fixed portion and a movable portion. The movable portion may move linearly with respect to the fixed portion.

[0155] The fixed part can be rotatably connected to the first a point (501) of the main body frame (110) by a cylindrical shaft. The first a point (501) can be located at the upper rear portion of the base (111). The longitudinal direction of the cylindrical shaft can be parallel to the X-axis.

[0156] The movable part may be rotatably connected to the second a point (502) of the seat frame (210) by a cylindrical shaft. The second a point (502) may be located at the front lower portion of the seat frame (210). The longitudinal direction of the cylindrical shaft may be parallel to the X-axis.

[0157] FIG. 10 is a cross-sectional view of a body care device (1000) according to an embodiment of the present invention, showing a state in which the seat portion (200) and the backrest portion (300) are positioned in a second posture.

[0158] The second position may refer to a state in which the backrest (300) is lying down. The user may lie down on the body care device (1000) in the second position. The user may receive body care in the second position.

[0159] As the movable part moves linearly with respect to the fixed part, the seat drive part (500) can push the seat frame (210) forward or pull it backward. At this time, the first roller (231a) and the second roller (231b) can move forward and backward along the driving surface (113) on both left and right sides of the main body frame (110). Therefore, the seat part (200) can move forward and backward.

[0160] At this time, the guide surface (117) can face one side of the guide disk (233) on both left and right sides of the main body frame (110) with a small gap in the left and right direction (see Fig. 5).

[0161] Accordingly, when the first roller (231a) and the second roller (231b) run in the forward and backward direction along the running surface (113) on both left and right sides of the main body frame (110), the left-right movement of the first roller (231a) and the second roller (231b) can be blocked. Accordingly, the left-right movement and rotation of the seat portion (200) can be blocked.

[0162] Fig. 11 is a side view showing a state in which the roller (231) of Fig. 4 is seated on the running surface (113), and is a drawing showing a state in which the second roller (231b) is located at the rear end point (S2) of the moving section (S).

[0163] Fig. 12 is a side view showing a state in which the roller (231) of Fig. 4 is seated on a running surface (113), and is a drawing showing a state in which the first roller (231a) is located at a shear point (S1) of a moving section (S).

[0164] The guide (112) can form a moving section (S) along which the moving members (230) move in the forward and backward direction. The moving section (S) can mean a path or space along which the first roller (231a) and the second roller (231b) move.

[0165] The rear end point (S2) of the moving section (S) may refer to a point or space where the second roller (231b) is located in the first posture. The rear end (S2) of the running surface (113) may refer to a point where the second roller (231b) is located in the first posture. The rear end point (S2) of the moving section (S) and the rear end (S2) of the running surface (113) may be used with the same meaning. The shear point (S1) of the moving section (S) may refer to a point or space where the first roller (231a) is located in the second posture. The front end (S1) of the running surface (113) may refer to a point where the first roller (231a) is located in the second posture. The shear point (S1) of the moving section (S) and the front end (S1) of the running surface (113) may be used with the same meaning.

[0166] As the seat drive unit (500) expands between the first point (501) and the second point (502), the first roller (231a) and the second roller (231b) can move forward and backward in the moving section (S).

[0167] The control unit (800) can control the seat drive unit (500) so that the seat unit (200) changes from the first position to the second position and from the second position to the first position.

[0168] When the second roller (231b) is positioned at the rear end point (S2) of the moving section (S) (see FIG. 11), the seat (200) can be positioned in the first position (see FIG. 9). The first position may refer to a state in which the backrest (300) is upright. The user can sit on the body care device (1000) in the first position. The user can receive body care in the first position.

[0169] When the first roller (231a) is positioned at the shear point (S1) of the moving section (S) (see FIG. 12), the seat (200) can be positioned in a second position (see FIG. 10). The second position may refer to a state in which the backrest (300) is lying down. The user can lie down on the body care device (1000) in the second position. The user can receive body care in the second position.

[0170] A front boundary member (115) and a rear boundary member (116) can be combined with the guide (112).

[0171] The shear boundary member (115) can be connected to the guide (112) in front of the shear point (S1) of the moving section (S). The shear boundary member (115) can block the first roller (231a) from moving forward of the moving section (S).

[0172] The rear boundary member (116) can be connected to the guide (112) at a position behind the rear end point (S2) of the moving section (S). The rear boundary member (116) can block the second roller (231b) from moving behind the moving section (S).

[0173] The guide (112) may include a running surface (114). The running surface (114) may form the upper surface of the moving section (S). The running surface (113) may form the lower surface of the moving section (S). The rollers (231) may be spaced apart from the running surface (114) by a small gap while being seated on the running surface (113) (see FIG. 5).

[0174] Accordingly, even if a user sitting on the seat (200) moves his / her body or an external force is transmitted to the seat (200), the up-and-down movement of the first roller (231a) and the second roller (231b) can be blocked. Accordingly, the up-and-down movement and rotation of the seat (200) can be blocked.

[0175] The first roller (231a) can be rotatably coupled to the seat frame (210). The second roller (231b) can be rotatably coupled to the seat frame (210) at a position behind the first roller (231a). Therefore, a straight line (hereinafter referred to as the 'axis connection line (CL)') connecting the central axes of the first roller (231a) and the second roller (231b) can rotate integrally with the seat frame (210).

[0176] The seat cover (220) can be coupled to the seat frame (210). The seat cover (220) can form a first seating surface (221). The first seating surface (221) can include a butt seating surface (221a). Accordingly, the axis connecting line (CL) can rotate integrally with the butt seating surface (221a).

[0177] In the first position of the seat part (200), the second roller (231b) may be positioned lower than the first roller (231a). Therefore, in the first position, the axis connection line (CL) may form an angle of less than 0° with the Y-axis, centered on the central axis of the first roller (231a) (see FIG. 11). For example, in the first position, the axis connection line (CL) may form an angle of -7° with the Y-axis. The '-' sign may mean tilted backward.

[0178] A user can sit on a body care device (1000) in a first position. The user can receive body care in the first position. The axis connection line (CL) can be parallel to the buttocks resting surface (221a). Therefore, in the first position, the buttocks resting surface (221a) can form an angle less than 0° (for example, -7°) with the Y-axis (see FIG. 8). Therefore, the buttocks resting surface (221a) can form a downward slope toward the rear. Therefore, the body weight of a user sitting on the seat portion (200) in the first position can be distributed to the seat portion (200) and the backrest portion (300) rather than being concentrated on the seat portion (200). Therefore, a comfortable sitting feeling can be provided to a user sitting on the seat portion (200) in the first position.

[0179] The moving section (S) can form a curved shape whose height changes in the forward and backward directions. The running surface (113) can form a curved surface with different heights in the forward and backward directions. Therefore, when the posture of the seat part (200) changes from the first posture to the second posture and vice versa, the angle of the buttocks resting surface (221a) can smoothly change as the first roller (231a) and the second roller (231b) run along the curved surface (curved shape). Therefore, a comfortable seating experience can be provided to a user sitting on the seat part (200).

[0180] The running surface (113) can form a convex curved surface upward with respect to the front-back direction. Therefore, as the movable members (230) move from the rear end point (S2) of the moving section (S) to the shear point (S1), the angle between the hip resting surface (221a) and the horizontal plane can decrease. Conversely, as the movable members (230) move from the shear point (S1) to the rear end point (S2) of the moving section (S), the angle between the hip resting surface (221a) and the horizontal plane can increase. That is, when the posture of the seat part (200) changes from the first posture to the second posture and vice versa, as the first roller (231a) and the second roller (231b) run along the curved surface (curved shape), the hip resting surface (221a) can smoothly rotate to both sides. Therefore, it is possible to provide a comfortable seating experience to the user sitting on the seat (200).

[0181] The running surface (113) can form a constant curvature based on the front-back direction. Accordingly, the moving speed and the rotation speed of the seat part (200) can be proportional to each other. Accordingly, when the posture of the seat part (200) changes from the first posture to the second posture and from the second posture to the first posture, the first roller (231a) and the second roller (231b) run along the curved surface (curved shape) at a constant speed, so that the buttocks resting surface (221a) can smoothly rotate at a constant angular speed. Accordingly, a comfortable sitting feeling can be provided to a user sitting on the seat part (200).

[0182] The highest point (S3) of the moving section (S) may be located between the front end (S1) and the rear end (S2) of the moving section (S). And the highest point (S3) of the running surface (113) may be located between the front end (S1) and the rear end (S2) of the running surface (113). Accordingly, the first roller (231a) may be located in front of the highest point (S3) of the running surface (113) or the moving section (S), and the second roller (231b) may be located behind the highest point (S3) of the running surface (113) or the moving section (S). At this time, the central axis of the first roller (231a) and the central axis of the second roller (231b) may form the same height, and the axis connection line (CL) may form an angle of 0° with the Y-axis (see FIG. 10). At this time, the seat part (200) may form a second posture. Accordingly, when the posture of the seat part (200) changes from the first posture to the second posture and from the second posture to the first posture, the angle between the buttocks resting surface (221a) and the Y-axis can be smoothly rotated between less than 0° (for example, -7°) and 0°. Therefore, a comfortable seating feeling can be provided to a user sitting on the seat part (200).

[0183] The highest point (S3) of the moving section (S) may be closer to the shear point (S1) than to the rear end (S2) of the moving section (S). The highest point (S3) of the running surface (113) may be closer to the front end (S1) than to the rear end (S2) of the running surface (113). Therefore, as the second roller (231b) moves to the rear end (S2) of the moving section (S), the axial connection line (CL) may form an angle of less than 0° with the Y-axis (see FIG. 11). And, as the first roller (231a) moves to the shear point (S1) of the moving section (S), the axial connection line (CL) may form an angle of 0° with the Y-axis (see FIG. 12). Therefore, the front-rear length of the moving section (S) and the running surface (113) may be compact. Therefore, the front-back length of the guide (112) can be compacted.

[0184] The rear end point (S2) of the moving section (S) may be lower than the shear point (S1) of the moving section (S). Therefore, even if the running surface (113) forms a constant curvature, the highest point (S3) of the moving section (S) may be closer to the shear point (S1) than to the rear end point (S2) of the moving section (S). Therefore, even if the running surface (113) forms a constant curvature, as the second roller (231b) moves to the rear end point (S2) of the moving section (S), the axial connection line (CL) may form an angle of less than 0° with the Y-axis (see FIG. 11). And, as the first roller (231a) moves to the shear point (S1) of the moving section (S), the axial connection line (CL) may form an angle of 0° with the Y-axis (see FIG. 12). Therefore, even if the driving surface (113) forms a constant curvature, the length of the guide (112) in the front-rear direction can be compacted.

[0185] The backrest driving unit (600) may be rotatably connected to the first b point (601) of the seat frame (210) and the second b point (602) of the backrest frame (310), and may be formed as a linear actuator that extends between the first b point (601) and the second b point (602).

[0186] The backrest driving unit (600) may be formed of a linear motor having a structure in which a rotary AC motor is extended in a straight line. Alternatively, the backrest driving unit (600) may be formed of a structure using a rotary motor and a rack and pinion mechanism.

[0187] The backrest drive unit (600) may include a fixed portion and a movable portion. The movable portion may move linearly with respect to the fixed portion.

[0188] The fixed part can be rotatably connected to the first b point (601) of the seat frame (210) by a cylindrical shaft. The first b point (601) can be located at the front lower part of the seat frame (210). The longitudinal direction of the cylindrical shaft can be parallel to the X-axis.

[0189] The movable part may be rotatably connected to the second b point (602) of the backrest frame (310) by a cylindrical shaft. The second b point (602) may be located at the lower rear portion of the backrest frame (310). The second b point (602) may be located at the lower rear portion than the frame axis (311). The longitudinal direction of the cylindrical shaft may be parallel to the X-axis.

[0190] As the movable part moves linearly with respect to the fixed part, the second point b (602) can rotate around the frame axis (311). Therefore, as the movable part moves linearly with respect to the fixed part, the backrest drive part (600) can rotate the backrest frame (310) around the frame axis (311). That is, as the backrest drive part (600) expands and contracts between the first point b (601) and the second point b (602), the backrest frame (310) can be raised forward (see FIG. 9) or laid back (see FIG. 10).

[0191] The control unit (800) can simultaneously control the seat drive unit (500) and the backrest drive unit (600) so that the seat unit (200) and the backrest unit (300) change from the first position to the second position and from the second position to the first position.

[0192] The control unit (800) can simultaneously control the seat drive unit (500) and the backrest drive unit (600) so that when the seat frame (210) moves forward, the backrest frame (310) is laid back (see FIG. 10) and when the seat frame (210) moves backward, the backrest frame (310) is raised (see FIG. 9).

[0193] In the first posture, the second seating surface (321) of the backrest (300) may be inclined backward (see FIG. 9). For example, in the first posture, the second seating surface (321) of the backrest (300) may be inclined backward to form an angle of about +60° with the Y-axis. The '+' sign may mean that it is inclined forward. In the first posture, the hip seating surface (221a) may form an angle of less than 0° (for example, -7°) with the Y-axis. Therefore, in the first posture, the hip seating surface (221a) may form a downward slope backward, and the second seating surface (321) may be inclined backward. The user may sit on the body care device (1000) in the first posture. The user may receive body care in the first posture. In the first position, the angle between the buttocks resting surface (221a) and the second resting surface (321) may be slightly greater than 90°. For example, in the first position, the buttocks resting surface (221a) and the second resting surface (321) may form an angle of approximately 110°. Accordingly, the body weight of a user sitting on the seat portion (200) in the first position may not be concentrated on the seat portion (200) but may be distributed across the seat portion (200) and the backrest portion (300). Accordingly, a comfortable seating experience can be provided to a user sitting on the seat portion (200) in the first position.

[0194] In the second posture, the second seating surface (321) of the backrest portion (300) can form an angle of 0° with the Y-axis (see FIG. 10). In the second posture, the buttocks seating surface (221a) can form an angle of 0° with the Y-axis. Therefore, in the second posture, the buttocks seating surface (221a) and the second seating surface (321) can form an angle of 0° with the Y-axis. In the second posture, the buttocks seating surface (221a) and the second seating surface (321) can be positioned on the same plane. The user can lie down on the body care device (1000) in the second posture. The user can receive body care in the second posture. Therefore, a comfortable sitting feeling can be provided to the user lying on the first seating surface (221) and the second seating surface (321) in the second posture.

[0195] When the posture of the backrest part (300) changes from the first posture to the second posture and from the second posture to the first posture, the angle between the second seating surface (321) and the Y-axis can smoothly rotate between about +60° and 0°. When the posture of the seat part (200) changes from the first posture to the second posture and from the second posture to the first posture, the angle between the buttocks seating surface (221a) and the Y-axis can smoothly rotate between less than 0° (for example, -7°) and 0°. Therefore, except for the second posture, the buttocks seating surface (221a) can always form a downward slope toward the rear. Accordingly, when the posture of the seat part (200) and the backrest part (300) changes from the first posture to the second posture and from the second posture to the first posture, the user's body weight can be distributed to the seat part (200) and the backrest part (300) rather than being concentrated on the seat part (200). Accordingly, when the posture of the seat part (200) and the backrest part (300) changes from the first posture to the second posture and from the second posture to the first posture, a comfortable seating feeling can be provided to the user.

[0196] When the posture of the seat part (200) and the backrest part (300) changes from the first posture to the second posture, the seat part (200) can be moved forward by the seat drive part (500). When the posture of the seat part (200) and the backrest part (300) changes from the first posture to the second posture, the control part (800) can simultaneously control the seat drive part (500) and the backrest drive part (600) so that the rear end of the backrest part (300) does not move backward. Alternatively, when the posture of the seat part (200) and the backrest part (300) changes from the first posture to the second posture, the control part can simultaneously control the seat drive part (500) and the backrest drive part (600) so that the rear end of the backrest part (300) moves backward only within the allowable distance. Here, the allowable distance may mean a distance at which the rear end of the backrest (300) does not come into contact with an object behind the backrest (300), such as the canopy (400). Accordingly, when the posture of the seat (200) and the backrest (300) changes from the first posture to the second posture, the backrest (300) may not come into contact with the canopy (400). Accordingly, reclining may be possible regardless of the presence or absence of free space behind the backrest (300).

[0197] FIG. 13 is a drawing showing a state in which a canopy drive unit (700) is installed in a body care device (1000) according to an embodiment of the present invention. FIG. 14 is a drawing showing a body frame (110), a seat frame (210), a backrest frame (310), a canopy (400), and a canopy drive unit (700) in the body care device (1000) of FIG. 13. FIG. 15 is a drawing showing the canopy drive unit (700) in the body care device (1000) of FIG. 13 in more detail. FIGS. 16 to 19 are drawings showing the driving process of the canopy (400) in the body care device (1000) according to an embodiment of the present invention.

[0198] A body care device (1000) according to an embodiment of the present invention includes a main body frame (110), a seat frame (210), a backrest frame (310), a canopy (400), and a canopy driving unit (700). In this case, the canopy driving unit (700) moves the canopy (400) in the forward and backward direction of the main body frame (110) when the canopy (400) is rotated.

[0199] Here, the forward direction refers to the front direction of a user seated on the body care device (1000), which may be the direction indicated by the Y-axis arrow in the drawing. In addition, the rearward direction refers to the back direction of a user seated on the body care device (1000), which may be the opposite direction to the direction indicated by the Y-axis arrow in the drawing.

[0200] Therefore, the front-back direction of the main body frame (110) refers to the front and rear directions of a user seated on the body care device (1000), and may be the direction along the Y-axis in the drawing.

[0201] The main body frame (110) is a part that forms the skeleton of the main body (100) and can support the seat part (200), backrest part (300), and canopy (400) with respect to the floor surface (ground).

[0202] The seat frame (210) is a part that forms the skeleton of the seat part (200), and is installed on the main body frame (110) to support the user's buttocks.

[0203] The backrest frame (310) is a part that forms the frame of the backrest part (300), and one end (312) is connected to the seat frame (210) to support the user's back.

[0204] The canopy (400) is a portion that is installed to be rotatably driven with respect to the main body frame (110) and can cover the other end (313) of the backrest frame (310) according to the rotational drive. This canopy (400) can be deployed according to the user's needs to cover the face of a seated user.

[0205] The canopy driving unit (700) is a part that connects the main body frame (110) and the canopy (400) and drives the canopy (400) to rotate relative to the main body frame (110). When a user inputs a driving signal without having to directly drive the canopy (400), the canopy driving unit (700) can drive the canopy (400).

[0206] In this way, a user using a body care device (1000) can cover the face by driving the canopy (400) through the canopy drive unit (700) when necessary, thereby preventing sleep and rest from being disturbed by bright lights on the ceiling, etc.

[0207] However, if the rotational drive of the canopy (400) is performed through simple hinge rotation, there is a risk that the rotating canopy (400) may collide with the user's head.

[0208] Accordingly, the body care device (1000) according to the present embodiment is configured to rotate while the canopy (400) moves in the forward and backward direction of the main body frame (110), thereby preventing the occurrence of a collision as described above.

[0209] In this way, the body care device (1000) according to the embodiment of the present invention moves the canopy (400) in the forward and backward direction of the body frame (110) when the canopy (400) is driven to rotate relative to the body frame (110), thereby preventing the canopy (400) being driven to rotate from colliding with the user's head, thereby enabling the use of the body care device (1000) to be more convenient and smooth.

[0210] In a body care device (1000) according to an embodiment of the present invention, the canopy drive unit (700) may include a first canopy link (710), a second canopy link (720), and a third canopy link (730).

[0211] The first canopy link (710) is a part whose central portion is hinge-joined to the first link hinge axis (701) formed along the transverse direction in the main body frame (110), and can be hinge-rotated around the first link hinge axis (701).

[0212] The second canopy link (720) is a part in which one end (721) of the first canopy link (710) is hinge-joined to the second link hinge axis (702) formed parallel to the first link hinge axis (701) at one end (711), and the other end (722) is joined to the canopy (400).

[0213] Accordingly, when the hinge of the first canopy link (710) rotates, one end (721) of the second canopy link (720) coupled to one end (711) of the first canopy link (710) moves together, and the canopy (400) coupled to the other end (722) of the second canopy link (720) can move. In this case, the second canopy link (720) can be hinge-rotated about the second link hinge axis (702).

[0214] The third canopy link (730) is a part in which one end (731) is hinged to the third link hinge axis (703) formed parallel to the first link hinge axis (701) in the central portion of the second canopy link (720), and the other end (732) is hinged to the fourth link hinge axis (704) formed parallel to the first link hinge axis (701) in the main body frame (110).

[0215] Accordingly, when the second canopy link (720) moves, the central portion of the second canopy link (720) can move within a range constrained by the third canopy link (730). In this case, the third canopy link (730) can be hinge-rotated around the third link hinge axis (703) and the fourth link hinge axis (704).

[0216] Hereinafter, with reference to FIGS. 16 to 19, the process of driving the canopy (400) by the canopy driving unit (700) will be described.

[0217] First, as illustrated in FIG. 16, when there is no need to use the canopy (400), the first canopy link (710), the second canopy link (720), and the third canopy link (730) can be maintained in a state of no separate operation while being coupled to each other.

[0218] Next, when the user drives the canopy (400), as illustrated in FIG. 17, the first canopy link (710) can hinge-rotate around the first link hinge axis (701). Accordingly, one end (711) of the first canopy link (710) moves rearward, and the second canopy link (720) and the canopy (400) coupled to one end (711) of the first canopy link (710) also move rearward.

[0219] In this case, the central portion of the second canopy link (720) is hingedly connected to one end (731) of the third canopy link (730), so the central portion of the second canopy link (720) moves along the rotation radius of the third canopy link (730).

[0220] Next, as illustrated in FIG. 18, the canopy (400) is moved rearward until the second canopy link (720) is moved to the rearmost position through additional rotation of the first canopy link (710).

[0221] Next, as illustrated in FIG. 19, when the first canopy link (710) is further rotated, one end (721) of the second canopy link (720) moves downward. In this case, since the central portion of the second canopy link (720) is hinged to one end (731) of the third canopy link (730), the second canopy link (720) is inclined at an angle of arrangement, and the canopy (400) coupled to the other end (722) of the second canopy link (720) is driven to rotate.

[0222] Through the above driving process, the canopy (400) can be driven forward and backward and rotate at the same time, and the structure of the canopy driving unit (700) that implements the driving of the canopy (400) can be made relatively simple and efficient.

[0223] In this way, the body care device (1000) according to the embodiment of the present invention has a structure in which the canopy driving unit (700) that drives the canopy (400) includes a first canopy link (710), a second canopy link (720), and a third canopy link (730), so that the canopy driving unit (700) can reduce the operating load and time while taking up a small installation space, thereby optimizing the functionality and usability of the body care device (1000).

[0224] In a body care device (1000) according to an embodiment of the present invention, the canopy driving unit (700) may further include a canopy actuator (740) that is coupled to the other end (712) of the first canopy link (710) and rotates the first canopy link (710) about the first link hinge axis (701).

[0225] In this case, the canopy actuator (740) may be formed as a linear actuator in which the length of the portion connected to the other end (712) of the first canopy link (710) is elastic.

[0226] Accordingly, as illustrated in FIGS. 16 to 19, when the length of the canopy actuator (740) is reduced, the first canopy link (710) can be rotated to drive the canopy (400). Then, when the length of the canopy actuator (740) is increased again, the first canopy link (710) can be rotated in the opposite direction to return the canopy (400) to its original position.

[0227] Meanwhile, the canopy actuator (740) may be formed of a linear motor having a structure in which a rotary AC motor is extended in a straight line. Alternatively, the canopy actuator (740) may be formed of a structure using a rotary motor and a rack and pinion mechanism.

[0228] In this way, the body care device (1000) according to the embodiment of the present invention operates the canopy drive unit (700) through the canopy actuator (740), so that the canopy (400) can be driven automatically and precisely.

[0229] In a body care device (1000) according to an embodiment of the present invention, a canopy actuator (740) can be hinge-coupled to the main body frame (110) and the first canopy link (710), respectively.

[0230] As described above, when the canopy actuator (740) coupled to the other end (712) of the first canopy link (710) rotates the first canopy link (710) by a hinge, the coupling angle between the other end (712) of the first canopy link (710) and the canopy actuator (740) can be changed.

[0231] In order to compensate for the changing coupling angle, it may be desirable to ensure that the arrangement angle of the canopy actuator (740) is not fixed but changes appropriately according to the rotation of the first canopy link (710).

[0232] Accordingly, the canopy actuator (740) can be hinge-coupled to the main body frame (110) and the first canopy link (710), respectively, so that the arrangement angle of the canopy actuator (740) can be appropriately changed according to the rotation of the first canopy link (710).

[0233] In this way, the body care device (1000) according to the embodiment of the present invention can smoothly provide driving force to the other end (712) of the first canopy link (710) that rotates the hinge and changes its position because the canopy actuator (740) is installed so that it can rotate the hinge.

[0234] In a body care device (1000) according to an embodiment of the present invention, the first canopy link (710) may be formed to be bent around the first link hinge axis (701). That is, the first canopy link (710) may be formed as a single member having different angles extending from both ends around the first link hinge axis (701).

[0235] As described above, the first canopy link (710) may be configured to rotate at a hinge and move the second canopy link (720) and the canopy (400).

[0236] In this case, if the first canopy link (710) is formed as a straight line overall, the rotation radius may be relatively large, which may occupy a large installation space. Accordingly, if the first canopy link (710) is formed of multiple members that are joined to each other, the structure may become relatively complex, and there is a risk of occurrence of a part where stress is weak in the driving force transmission structure.

[0237] Therefore, the above problem can be solved by forming the first canopy link (710) as a single member and bending it around the first link hinge axis (701).

[0238] In this way, the body care device (1000) according to the embodiment of the present invention can effectively change the direction of transmission of driving force through hinge rotation of the first canopy link (710) even if the first canopy link (710) is formed of a single member, since the first canopy link (710) is hinge-rotated around the bent portion.

[0239] In the body care device (1000) according to an embodiment of the present invention, the second canopy link (720) may be formed to be bent around the third link hinge axis (703). That is, the second canopy link (720) may be formed as a single member having different angles extending from both ends around the third link hinge axis (703).

[0240] As described above, the second canopy link (720) may be configured to move forward and backward in accordance with the hinge rotation of the first canopy link (710), and to rotate the canopy (400) while changing the arrangement angle.

[0241] In this case, if the second canopy link (720) is formed linearly overall, the change in the arrangement angle for rotating the canopy (400) significantly must also be relatively large, which may occupy a large installation space. Accordingly, if the second canopy link (720) is formed of a plurality of members that are joined to each other, the structure becomes relatively complex, and there is a concern that a part vulnerable to stress may be generated in the driving force transmission structure.

[0242] Therefore, the above problem can be solved by forming the second canopy link (720) as a single member and bending it around the third link hinge axis (703).

[0243] In this way, the body care device (1000) according to the embodiment of the present invention can effectively change the direction of transmission of driving force through hinge rotation of the second canopy link (720) even if the second canopy link (720) is formed as a single member.

[0244] In a body care device (1000) according to an embodiment of the present invention, the first canopy link (710) may be bent so that one end (711) is positioned relatively further rearward than the extension connecting the central portion to the other end (712). In this case, the second canopy link (720) may be bent so that the other end (722) is positioned relatively further forward than the extension connecting the central portion to the one end (721).

[0245] That is, as illustrated in FIG. 15, the extension line connecting the other end (712) of the first canopy link (710) to the center can be placed relatively forward of one end (711) of the first canopy link (710).

[0246] Accordingly, the distance by which one end (711) of the first canopy link (710) moves rearward can be increased relative to the hinge rotation angle of the first canopy link (710). That is, even if the first canopy link (710) rotates relatively little, the second canopy link (720) and the canopy (400) can be moved significantly in the forward and backward direction.

[0247] And, as illustrated in FIG. 15, the extension line connecting one end (721) of the second canopy link (720) to the center may be placed relatively further rearward than the other end (722) of the second canopy link (720).

[0248] Accordingly, the degree to which the other end (722) of the second canopy link (720) is inclined can be increased relatively compared to the degree to which the arrangement angle of the second canopy link (720) is inclined. That is, even if the arrangement angle of the second canopy link (720) is inclined relatively small, the rotation angle of the canopy (400) coupled to the other end (722) of the second canopy link (720) can be increased.

[0249] In this way, the body care device (1000) according to the embodiment of the present invention is structured so that the bending direction of each of the first canopy link (710) and the second canopy link (720) optimizes the operation of the canopy (400), so that even if a relatively small displacement occurs in the canopy actuator (740), the operation of the canopy (400) can be effectively performed.

[0250] Figures 20 to 22 are drawings showing the driving process of the backrest frame (310) and the canopy (400) in the body care device (1000) according to an embodiment of the present invention.

[0251] A body care device (1000) according to an embodiment of the present invention may further include a body cover (120) that covers the body frame (110), the seat frame (210), and the backrest frame (310). In this case, the canopy (400) may be detachably coupled to the body cover (120).

[0252] Specifically, the main body cover (120) can be formed to cover the front, rear, and side surfaces of the main body frame (110). The main body cover (120) can block external exposure of the main body frame (110) through the front, rear, and side surfaces of the main body (100).

[0253] As illustrated in FIG. 20, a canopy (400) can be combined with a main body cover (120) to form an overall appearance. In addition, when the use of the canopy (400) is necessary, as illustrated in FIGS. 21 and 22, the canopy (400) can be separated from the main body cover (120) and operated to cover the face of a seated user.

[0254] In this way, the body care device (1000) according to the embodiment of the present invention has a canopy (400) detachably attached to the main body cover (120) forming the main exterior, so that the canopy (400) attached to the main body cover (120) provides a sense of unity, thereby improving the design effect in terms of appearance.

[0255] In a body care device (1000) according to an embodiment of the present invention, the uppermost end of the canopy (400) may be positioned relatively further rearward than the other end (313) of the backrest frame (310) when the canopy (400) is not separated from the main body cover (120).

[0256] That is, as shown in Fig. 20, when there is no need to use the canopy (400), the uppermost part of the canopy (400) can be positioned relatively further rearward than the other end (313) of the backrest frame (310).

[0257] Since the user's face part is located on the other end (313) side of the backrest frame (310), if there is no need to use the canopy (400), there is no need for the canopy (400) to cover the other end (313) side of the backrest frame (310).

[0258] Rather, the closer the canopy (400) is to the other end (313) of the backrest frame (310), the more likely it is that the user's head located at the other end (313) of the backrest frame (310) will collide with the canopy (400), so it may be preferable that the top end of the canopy (400) be located relatively further rearward than the other end (313) of the backrest frame (310).

[0259] In this way, the body care device (1000) according to the embodiment of the present invention can prevent the canopy (400) from interfering with the user's head or other major components without needing to cover the face of the seated user, since the uppermost part of the canopy (400) is positioned relatively further rearward than the other end (313) of the backrest frame (310) in a state where the main body cover (120) and the canopy (400) are not separated.

[0260] In a body care device (1000) according to an embodiment of the present invention, when the canopy (400) is rotated while being separated from the main body cover (120), the uppermost end of the canopy (400) can be positioned relatively further forward than the other end (313) of the backrest frame (310).

[0261] That is, as shown in Fig. 22, when the canopy (400) is driven to rotate for use, the uppermost end of the canopy (400) can be positioned relatively forward compared to the other end (313) of the backrest frame (310).

[0262] Since the user's face part is located on the other end (313) side of the backrest frame (310), when the use of the canopy (400) is required, the canopy (400) needs to cover the other end (313) side of the backrest frame (310).

[0263] Accordingly, it may be desirable to position the top of the canopy (400) relatively further forward than the other end (313) of the backrest frame (310) so as to cover more of the user's face located on the other end (313) of the backrest frame (310).

[0264] In this way, the body care device (1000) according to the embodiment of the present invention has the uppermost end of the canopy (400) positioned relatively further forward than the other end (313) of the backrest frame (310) in a state where the canopy (400) separated from the main body cover (120) is rotatably driven, so that the canopy (400) can more effectively cover the face of a seated user when necessary.

[0265] The body care device (1000) according to an embodiment of the present invention may further include a backrest driving unit (600) that rotates the backrest frame (310) relative to the seat frame (210).

[0266] That is, the backrest frame (310) can be rotatably connected to the seat frame (210) about the frame axis (311) so that it can be erected or laid back, and the backrest drive unit (600) can drive the backrest frame (310).

[0267] Accordingly, the user can use the body care device (1000) by appropriately changing the angle of the backrest frame (310) according to his / her taste and situation.

[0268] In a body care device (1000) according to an embodiment of the present invention, the backrest driving unit (600) can drive the backrest frame (310) to rotate while the canopy (400) is moved to the rear of the main body frame (110).

[0269] Accordingly, it is possible to effectively prevent the backrest frame (310) from colliding with the canopy (400) during the rotational driving process.

[0270] In a body care device (1000) according to an embodiment of the present invention, the canopy driving unit (700) can drive the canopy (400) to rotate while the backrest frame (310) is driven to rotate.

[0271] Accordingly, the canopy (400) can be effectively prevented from colliding with the backrest frame (310) during the rotational driving process.

[0272] A body care device (1000) according to an embodiment of the present invention includes a main body frame (110), a seat frame (210), a backrest frame (310), a backrest driving unit (600), a canopy (400), a canopy driving unit (700), and a control unit (800). In this case, the control unit (800) controls the operation of the backrest driving unit (600) and the canopy driving unit (700) to be performed sequentially.

[0273] That is, the operation of the backrest drive unit (600) and the canopy drive unit (700) may not be performed simultaneously, but may be linked to each other so that they are performed in alternating steps in a certain order.

[0274] If the backrest drive unit (600) and the canopy drive unit (700) operate simultaneously, there is a risk that the backrest frame (310) may collide with the canopy (400) during the process of being laid down, or that the canopy (400) may collide with the backrest frame (310) during the process of being rotated.

[0275] Therefore, it may be desirable to sequentially control the backrest frame (310) and the canopy (400) in steps that do not interfere with each other.

[0276] In this way, in the body care device (1000) according to an embodiment of the present invention, the operation of the canopy driving unit (700) that drives the canopy (400) and the backrest driving unit (600) that drives the backrest frame (310) are interconnected, so that the rotational drive of the canopy (400) does not interfere with the rotational drive of the backrest frame (310), and thus the operation of each component of the body care device (1000) can be performed smoothly.

[0277] In a body care device (1000) according to an embodiment of the present invention, the control unit (800) can control the canopy driving unit (700) to move the canopy (400) in the forward and backward direction of the main body frame (110) when the canopy (400) is rotated.

[0278] Accordingly, the rotationally driven canopy (400) is prevented from colliding with the user's head, making the use of the body care device (1000) more convenient and smooth.

[0279] In a body care device (1000) according to an embodiment of the present invention, the control unit (800) can control the backrest drive unit (600) and the canopy drive unit (700) so that the backrest frame (310) is rotated while the canopy (400) is moved to the rear of the main body frame (110).

[0280] That is, as illustrated in FIGS. 20 and 21, the canopy (400) can be moved to the rear of the main body frame (110) before the backrest frame (310) is rotated. In this state, by rotating the backrest frame (310), the rotating backrest frame (310) can be prevented from interfering with the canopy (400).

[0281] In this way, the body care device (1000) according to the embodiment of the present invention can effectively prevent the backrest frame (310) from colliding with the canopy (400) during the rotational driving process since the backrest frame (310) is rotated while the canopy (400) is moved to the rear of the main body frame (110).

[0282] In a body care device (1000) according to an embodiment of the present invention, the control unit (800) can control the backrest driving unit (600) and the canopy driving unit (700) so that the canopy (400) is driven to rotate while the backrest frame (310) is driven to rotate.

[0283] That is, as illustrated in FIGS. 21 and 22, the backrest frame (310) can be rotated before the canopy (400) is rotated while the canopy (400) is moved rearward. In this way, by rotating the canopy (400) while the rotation of the backrest frame (310) is completed, it is possible to prevent the rotating canopy (400) from interfering with the backrest frame (310).

[0284] In this way, the body care device (1000) according to the embodiment of the present invention can effectively prevent the canopy (400) from colliding with the backrest frame (310) during the process of rotating the canopy (400), since the canopy (400) is rotated while the backrest frame (310) is rotated.

[0285]

[0286] While specific embodiments of the present invention have been described and illustrated above, it will be apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should not be understood individually from the technical spirit or perspective of the present invention, and such modified embodiments should fall within the scope of the claims of the present invention.

[0287] The body care device according to the present invention optimizes the reclining structure, enabling reclining regardless of the presence or absence of free space behind the backrest. Furthermore, by optimizing the operating structure of the seat and backrest, reclining up to 180° is possible. Therefore, by overcoming the limitations of existing technologies, the invention not only has ample potential for utilizing related technologies but also for commercializing or selling applicable devices. Furthermore, the invention is clearly feasible and practically applicable, making it an invention with industrial applicability.

Claims

1. A seat frame in which multiple rollers are rotatably connected; A main body frame including a running surface on which the rollers run in the forward and backward directions; and It includes a seat drive unit provided on the above main body frame to move the seat frame forward and backward, The above driving surface forms a curved surface with different heights in the front-rear direction, Body care device.

2. In paragraph 1, The above driving surface forms a convex surface upward based on the front-rear direction, Body care device.

3. In paragraph 2, The highest point of the above running surface is located between the front and rear ends of the above running surface. Body care device.

4. In paragraph 3, The highest point of the above running surface is closer to the front end than the rear end of the above running surface. Body care device.

5. In paragraph 1, The above rollers, first roller; and Including a second roller that is seated on the running surface behind the first roller, Body care device.

6. In paragraph 1, The above driving surface includes a first driving surface and a second driving surface spaced apart from each other in the left-right direction, The above rollers are respectively seated on the first running surface and the second running surface, Body care device.

7. In paragraph 1, A guide disc coupled to the roller and having a radius larger than that of the roller, The above main body frame is, A guide surface that forms a shape bent downwards on the above driving surface and faces one side of the guide disk in the left and right directions, Body care device.

8. In paragraph 1, The above seat drive unit is rotatably connected to a first point of the main body frame and a second point of the seat frame, and is formed by a linear actuator that extends between the first point and the second point. Body care device.

9. In paragraph 1, A backrest frame that is rotatably connected to the seat frame about a frame axis so that it can be erected or laid back; and Including a backrest driving unit provided on the seat frame and rotating the backrest frame around the frame axis, Body care device.

10. In paragraph 9, A control unit that simultaneously controls the seat drive unit and the backrest drive unit so that the backrest frame is laid back when the seat frame moves forward and the backrest frame is erected when the seat frame moves backward. Body care device.

11. In paragraph 9, The above backrest driving unit is rotatably connected to a first point of the seat frame and a second point of the backrest frame, and is formed by a linear actuator that extends between the first point and the second point. Body care device.

12. Seat frame equipped with multiple moving parts; A main body frame forming a moving section in which the above moving members move forward and backward; and It includes a seat drive unit provided on the above main body frame to move the seat frame forward and backward, The above moving section forms a curve whose height changes in the forward and backward directions. Body care device.

13. In paragraph 12, The rear end point of the above moving section is lower than the front end point of the above moving section. Body care device.

14. In paragraph 12, The highest point of the above moving section is located between the front and rear points of the above moving section. Body care device.

15. In paragraph 14, The highest point of the above moving section is closer to the front point than the rear point of the above moving section. Body care device.

16. In paragraph 12, A seat cover is coupled to the seat frame and forms a buttocks resting surface, As the above moving members move from the rear end point of the moving section to the front end point, the angle between the hip mounting surface and the horizontal plane decreases. Body care device.

17. In paragraph 1, First, a backrest frame that is connected to the above seat frame and can support the user's back; A backrest driving unit that rotates the backrest frame relative to the seat frame; A canopy installed to be rotatably driven with respect to the above main body frame and capable of covering the other end of the backrest frame according to the rotational drive; A canopy driving unit that connects the main body frame and the canopy and rotates the canopy relative to the main body frame; and Including a control unit that controls the operation of the backrest driving unit and the canopy driving unit to be linked to each other. Body care device.

18. In paragraph 17, The above control unit controls the canopy driving unit to move the canopy in the forward and backward direction of the main body frame when the canopy is rotated. Body care device.

19. In paragraph 18, The control unit controls the backrest drive unit and the canopy drive unit so that the backrest frame is rotated while the canopy is moved to the rear of the main body frame. Body care device.

20. In paragraph 19, The control unit controls the backrest driving unit and the canopy driving unit so that the canopy is driven to rotate while the backrest frame is driven to rotate. Body care device.

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