Body care device

Abstract

Provided is a body care device that can massage the body of a user via physical stimulation. The body care device according to one aspect of the present invention comprises: a base part; a main rod part allowing rotation about a rod rotation axis along the transverse direction of the base part; off-centered cam parts the cross-sections of which, non-parallel to a virtual line orthogonal to the rod rotation axis, are attached to the main rod part to be in communication and to rotate therewith; massage arms coupled to the off-centered cam parts so as to be bound by the displacement, other than rotation, of the off-centered cam parts; continuous ball-guiding grooves provided along the transverse direction in the base part; and ball joints one rod-like end of each of which is attached to a massage arm and the other spherical end inserted into a ball-guiding groove.

Description

Body care devices

[0001] The present invention relates to a body care device, and more particularly, to a body care device that can provide a massage by physically stimulating a user's body.

[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] In relation to a body care device that performs massage using the mechanical device described above, Korean Patent No. 10-2496485 (hereinafter referred to as “prior document 1”) discloses a detachable air stretching massage device that helps maintain proper posture of the legs, pelvis, and waist.

[0006] Specifically, the present invention discloses a main assembly having a concave massage space formed from the upper side to the lower side, a center assembly that is selectively detachably assembled from the main assembly and divides the massage space into two sub-spaces, an airbag device that is arranged in the main assembly and inflates into the massage space upon receiving a control signal, and a cushion device that is arranged in the center assembly.

[0007] However, the body care device of prior art 1 has a problem in that it can only provide a simple massage by tightening the user's legs from the left and right, and that the massage is limited to the location where the airbag is installed. In other words, the body care device of prior art 1 has a limitation in that it cannot change the massage area and simply provides a massage using air pressure.

[0008] And, Korean Publication No. 20-2023-0002125 (hereinafter referred to as “prior document 2”) discloses a multi-functional massager.

[0009] Specifically, a foot massage device including two sets of foot massage assemblies installed within a first case to provide a foot massage, two slots arranged side by side within a second case to accommodate a user's legs and having massage airbags disposed therein is disclosed.

[0010] However, the body care device of prior art 2 also has the problem that it can only provide a massage with a simple motion of squeezing the user's legs from the left and right, and that the massage is limited to the location where the airbag is installed. In other words, the body care device of prior art 2 has the limitation that the user must move the massager himself to change the massage area, and that the massage is performed simply using air pressure.

[0011] As described above, a body care device that performs massage by a mechanical device has a problem that must be solved in order to have a more appropriate structure in terms of effective massage and convenience of use.

[0012] However, conventional body care devices have limitations in that they cannot adequately solve these problems.

[0013] The present invention aims to solve the above problems of a body care device that provides massage by physically stimulating a user's body.

[0014] Specifically, the present invention aims to provide a body care device that can further enhance the massage effect by making the configuration that physically stimulates the user's body actuated in a manner similar to the movement of a human hand.

[0015] In addition, the present invention aims to provide a body care device that allows a configuration that physically stimulates a user's body to automatically move in position, thereby allowing convenient massage of more parts of the body.

[0016] In addition, the present invention aims to provide a body care device that enables an optimal massage reflecting the characteristics of the user by enabling a component that comes into direct contact with the user's body to be elastically deformable.

[0017]

[0018] 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.

[0019] To achieve the above or other purposes, a body care device according to one aspect of the present invention is configured such that a massage arm for physically stimulating a user's body is configured to be driven in a manner similar to the movement of a human hand. Specifically, the massage arm is coupled to a bias cam portion arranged in a main rod portion to have a bias, so that when the bias cam portion rotates, the massage arm is driven in the left-right direction and the displacement of the upper and lower portions occurs relatively.

[0020] In addition, a body care device according to one aspect of the present invention may be formed such that the massage arm portion includes a cam cover and a massage body.

[0021] In addition, a body care device according to one aspect of the present invention can have a pair of massage arms driven together when one main load part is rotated.

[0022] In addition, a body care device according to one aspect of the present invention can be driven in a state in which a pair of massage arms driven together are symmetrical to each other.

[0023] In addition, in a body care device according to one aspect of the present invention, the insertion depth of one end of the ball joint can be varied by a guide bushing installed in the cam cover.

[0024] In addition, in a body care device according to one aspect of the present invention, the outer diameter of one end of the ball joint and the inner diameter of the guide bushing may correspond to each other.

[0025] In addition, a body care device according to one aspect of the present invention is configured such that a massage arm that physically stimulates a user's body is structured to automatically move in position. Specifically, the massage arm is configured such that it can be raised or lowered along the longitudinal direction of the base.

[0026] In addition, a body care device according to one aspect of the present invention may have a rack gear installed in the base portion and a pinion gear installed in the massage arm portion.

[0027] In addition, the body care device according to one aspect of the present invention can cause the rotation of the main load part and the rotation of the pinion gear to occur simultaneously by one driving part.

[0028] In addition, a body care device according to one aspect of the present invention is configured such that the outer surface of the massage arm portion that comes into direct contact with the user's body is formed of an elastically deformable structure. Specifically, an elastically deformable elastic body is configured to be installed on the outer surface of the massage body of the massage arm portion.

[0029] Additionally, a body care device according to one aspect of the present invention may have an elastic body formed as an airbag.

[0030] In addition, the body care device according to one aspect of the present invention may have an outer surface of a massage body on which an elastic body is installed formed as a rough surface.

[0031] In addition, a body care device according to one aspect of the present invention may have a massage body hinged to an end of a cam cover.

[0032] In addition, the body care device according to one aspect of the present invention can appropriately control the hinge rotation of the massage body through a torsion spring.

[0033]

[0034] The means for solving the technical problems to be solved by the present invention are not limited to the means for solving the problems mentioned above, and other means for solving the problems not mentioned will be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0035] FIG. 1 is a perspective view showing a body care device according to one embodiment of the present invention.

[0036] Figures 2 and 3 are drawings showing exemplary states in which the body care device illustrated in Figure 1 operates.

[0037] FIG. 4 is a drawing showing a ball joint part driven along a ball guide groove part in a body care device according to one embodiment of the present invention.

[0038] FIG. 5 is a drawing showing a bias cam section and a massage arm section coupled to a main load section in a body care device according to one embodiment of the present invention.

[0039] FIG. 6 is a drawing showing in more detail a portion where a cam cover and a ball joint are combined in a body care device according to one embodiment of the present invention.

[0040] FIGS. 7 to 9 are drawings exemplarily showing the driving of each component according to the rotation of the main load part in a body care device according to one embodiment of the present invention.

[0041] FIG. 10 is a drawing showing a rack gear and a pinion gear in a body care device according to one embodiment of the present invention.

[0042] FIG. 11 and FIG. 12 are drawings showing in more detail the portion where the massage body and the cam cover are combined in a body care device according to one embodiment of the present invention.

[0043] 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.

[0044] 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.

[0045]

[0046] FIG. 1 is a perspective view showing a body care device (1000) according to one embodiment of the present invention. FIG. 2 and FIG. 3 are diagrams exemplarily showing a state in which the body care device (1000) illustrated in FIG. 1 operates. FIG. 4 is a diagram showing a ball joint part (600) driven along a ball guide groove part (500) in the body care device (1000) according to one embodiment of the present invention. FIG. 5 is a diagram showing a biased cam part (300) and a massage arm part (400) coupled to a main rod part (200) in the body care device (1000) according to one embodiment of the present invention. FIG. 6 is a diagram showing in more detail a portion where a cam cover (410) and a ball joint part (600) are coupled in the body care device (1000) according to one embodiment of the present invention. FIGS. 7 to 9 are drawings exemplarily showing the driving of each component according to the rotation of the main load unit (200) in a body care device (1000) according to one embodiment of the present invention.

[0047] A body care device (1000) according to one embodiment of the present invention includes a base portion (100), a main rod portion (200), a bias cam portion (300), a massage arm portion (400), a ball guide groove portion (500), and a ball joint portion (600).

[0048] The base part (100) is a part that forms the main body of the body care device (1000) according to the present embodiment, and the main load part (200), the bias cam part (300), the massage arm part (400), the ball guide home part (500), and the ball joint part (600) can all be driven while changing their positions and arrangements based on the base part (100).

[0049] This base part (100) may be a part of a massage device such as a massage chair. In addition, the base part (100) may be formed independently and may be a part in which relative movement is minimized.

[0050] Accordingly, the user can massage the area to be massaged by operating the remaining components while bringing the area to be massaged close to the base (100).

[0051] The main load section (200) is a section installed to be rotatable around a load rotation axis (201) along the transverse direction of the base section (100), and can be rotated by a rotational force generated from the driving section (700).

[0052] The bias cam section (300) is a section that is not parallel to the virtual line perpendicular to the load rotation axis (201) and is connected to the main load section (200) so that it passes through and rotates together with the main load section (200).

[0053] Specifically, the bias cam section (300) can be joined with the main load section (200) by having a plate-shaped cross-section that penetrates it. Accordingly, the bias cam section (300) can be joined in a shape that protrudes from the outer surface of the main load section (200).

[0054] In particular, the plate-shaped cross-section of the bias cam (300) may be arranged so as not to be parallel to a virtual line perpendicular to the load rotation axis (201).

[0055] That is, when the bias cam (300) coupled to the main load unit (200) is viewed from the front, the bias cam (300) may be arranged in a state where the plate-shaped cross-section is oblique rather than vertical. In addition, when the bias cam (300) coupled to the main load unit (200) is viewed from the top, the bias cam (300) may be arranged in a state where the plate-shaped cross-section is oblique rather than vertical.

[0056] Accordingly, when the main load section (200) rotates about the axis, the bias cam section (300) can rotate while having a bias.

[0057] For example, as illustrated in Fig. 7, the bias cam section (300) may be positioned so that the upper portion of the main load section (200) is positioned to the right of the lower portion. At the same time, the bias cam section (300) may be positioned so that the cross-section positioned on the left is relatively more forward than the cross-section positioned on the right.

[0058] And, as illustrated in FIGS. 8 and 9, depending on the rotation of the main load section (200), the bias cam section (300) can be changed so that the portion positioned at the upper portion of the main load section (200) is positioned to the left of the portion positioned at the lower portion. At the same time, the bias cam section (300) can be changed so that the cross-section positioned at the right is positioned relatively more forward than the cross-section positioned at the left.

[0059] The massage arm (400) is a part that is coupled to the bias cam (300) so as to be restricted from displacement other than rotation of the bias cam (300), and can be driven in a configuration corresponding to the bias cam (300) according to the driving of the bias cam (300) as described above.

[0060] The ball guide groove (500) is a portion formed continuously in the transverse direction on the base portion (100), and can perform a rail function that allows the ball joint portion (600) to reciprocate in the transverse direction.

[0061] The ball joint part (600) is a part in which one end (601) of a rod shape is connected to the massage arm part (400) and the other end (602) of a sphere shape is inserted into the ball guide groove part (500), and the rotation of the massage arm part (400) is restricted and it can be moved back and forth in the transverse direction.

[0062] According to the structure described above, when the main load section (200) rotates its axis, the bias cam section (300) can rotate biased. When the bias cam section (300) rotates, the massage arm section (400) is driven in the left and right directions with limited rotation, and displacement of the upper and lower sections can occur relatively.

[0063] That is, the massage arm (400) can be driven along a wave-shaped path from top to bottom.

[0064] Accordingly, the massage arm (400) can be driven in a manner similar to kneading by a human hand, in that it moves back and forth sequentially from the top to the bottom, rather than moving back and forth only in a specific part.

[0065] In this way, the body care device (1000) according to one embodiment of the present invention has a massage arm (400) coupled to a bias cam (300) arranged on a main load (200) to have a bias, so that when the bias cam (300) rotates, the massage arm (400) is driven in the left-right direction and displacement of the upper and lower parts occurs relatively, so that a drive similar to kneading by a human hand is implemented, and the massage effect can be further improved.

[0066] In a body care device (1000) according to one embodiment of the present invention, the massage arm (400) may include a cam cover (410) and a massage body (420).

[0067] The cam cover (410) covers the bias cam section (300) and is a part in which the bias cam section (300) slides and rotates inside, and motions other than rotation of the cam cover (410) can be transmitted to the massage arm section (400).

[0068] In this case, a separate bearing structure, etc. may be interposed in the area where the cam cover (410) and the biased cam section (300) come into contact.

[0069] The massage body (420) is a part installed to extend longitudinally from the end of the cam cover (410), and the cam cover (410) can also apply physical stimulation to the massage target area by kneading motion through the movement of the biased cam part (300).

[0070] In particular, since the massage body (420) is installed to extend longitudinally, it can come into contact with the massage target area to a certain extent. Accordingly, when the massage body (420) is driven, a massage can be performed on the massage target area within a certain range.

[0071] In this way, the body care device (1000) according to one embodiment of the present invention is configured such that the massage arm (400) includes a cam cover (410) and a massage body (420), so that physical stimulation can be effectively applied to a certain range of massage target areas.

[0072] In a body care device (1000) according to one embodiment of the present invention, the bias cam portions (300) may be arranged in pairs on the main load portion (200). In this case, a massage arm portion (400) may be arranged for each bias cam portion (300).

[0073] That is, when one main load unit (200) is rotated about its axis, a pair of bias cam units (300) coupled thereto can be rotated together. In addition, the massage arm units (400) arranged for each bias cam unit (300) can also be driven together.

[0074] In this way, in the body care device (1000) according to one embodiment of the present invention, a pair of massage arm parts (400) are driven together when one main rod part (200) rotates, so that physical stimulation can be applied simultaneously from both sides to the massage target area.

[0075] In a body care device (1000) according to one embodiment of the present invention, a pair of biased cam parts (300) can be placed on the main load part (200) in a symmetrical state with respect to each other.

[0076] That is, when one main load unit (200) is rotated about its axis, a pair of bias cam units (300) coupled thereto can be rotated in a symmetrical state with respect to each other. In addition, the massage arm units (400) arranged for each bias cam unit (300) can also be driven in a symmetrical state with respect to each other.

[0077] Accordingly, when the massage target area is positioned between a pair of massage arms (400), symmetrical physical stimulation is applied to both sides of the area, allowing for a more effective massage.

[0078] In this way, the body care device (1000) according to one embodiment of the present invention can provide more effective physical stimulation to both sides of the massage target area since a pair of massage arm parts (400) that are driven together are driven in a symmetrical state with respect to each other.

[0079] In a body care device (1000) according to one embodiment of the present invention, the massage arm part (400) may further include a guide bushing (430) that is installed at a portion where the cam cover (410) is coupled to the ball joint part (600) and into which one end (601) of the ball joint part (600) is inserted and has a variable depth.

[0080] As described above, when the bias cam section (300) rotates, the ball joint section (600) can reciprocate laterally. However, if the ball guide groove section (500) into which the ball joint section (600) is inserted is formed linearly along the laterally, the gap between the massage arm section (400) and the ball guide groove section (500) may be different to a certain extent, making it difficult for the ball joint section (600) to reciprocate.

[0081] Therefore, in order to ensure smooth reciprocating movement of the ball joint part (600), it may be considered to form the ball guide groove part (500) in an arc shape rather than a straight line. However, if the ball joint part (600) is inserted into the arc-shaped ball guide groove part (500), the massage arm part (400) may also be driven in an arc shape to some extent, which may be undesirable.

[0082] Accordingly, when the gap between the massage arm part (400) and the ball guide groove part (500) is different to a certain extent, the insertion depth of one end (601) of the ball joint part (600) is made variable through the guide bushing (430) as shown in FIG. 6, so that even if the ball guide groove part (500) is formed linearly along the transverse direction, the reciprocating motion of the ball joint part (600) is not hindered.

[0083] In this way, in the body care device (1000) according to one embodiment of the present invention, since the insertion depth of one end (601) of the ball joint part (600) is variable by the guide bushing (430) installed in the cam cover (410), even if the ball guide groove part (500) is formed linearly, the ball joint part (600) can be driven smoothly.

[0084] In a body care device (1000) according to one embodiment of the present invention, the inner diameter of the guide bushing (430) can be formed to correspond to the outer diameter of one end (601) of the ball joint portion (600).

[0085] As described above, when one end (601) of the ball joint part (600) is inserted into the guide bushing (430), it may be desirable to limit the displacement of the ball joint part (600) in a direction other than the longitudinal direction.

[0086] That is, it may be desirable that one end (601) of the ball joint portion (600) can move only in the longitudinal direction within the guide bushing (430), and that the clearance between the guide bushing (430) and one end (601) of the ball joint portion (600) be minimized in other directions.

[0087] In this way, in the body care device (1000) according to one embodiment of the present invention, since the outer diameter of one end (601) of the ball joint part (600) and the inner diameter of the guide bushing (430) correspond to each other, one end (601) of the ball joint part (600) inserted into the guide bushing (430) can be efficiently driven only in the longitudinal direction.

[0088] FIG. 10 is a drawing showing a rack gear (101) and a pinion gear (401) in a body care device (1000) according to one embodiment of the present invention.

[0089] In a body care device (1000) according to one embodiment of the present invention, the massage arm (400) can be raised and lowered in the longitudinal direction with respect to the base (100).

[0090] That is, as shown in FIGS. 1 to 3, the massage arm (400) is raised and lowered in the longitudinal direction, and massage can be performed on massage target areas located at different heights.

[0091] For example, the massage arm (400) can be raised and lowered in the longitudinal direction to provide massage not only to the user's calf but also to the thigh area.

[0092] In this way, the body care device (1000) according to one embodiment of the present invention is configured with a structure in which the massage arm (400) can be raised and lowered along the longitudinal direction of the base (100), so that the massage target area can be automatically changed and the massage can be performed more conveniently.

[0093] In a body care device (1000) according to one embodiment of the present invention, a rack gear (101) may be installed along the longitudinal direction of the base portion (100). In this case, a pinion gear (401) capable of meshing with the rack gear (101) may be installed in the massage arm portion (400).

[0094] Accordingly, as illustrated in FIG. 10, when the pinion gear (401) rotates, the rack gear (101) can be raised and lowered along the pinion gear (401), and the massage arm part (400) coupled to the pinion gear (401) can be raised and lowered along the longitudinal direction of the base part (100).

[0095] In this way, the body care device (1000) according to one embodiment of the present invention has a rack gear (101) installed in the base portion (100) and a pinion gear (401) installed in the massage arm portion (400), so that the lifting and lowering of the massage arm portion (400) can be performed more precisely and stably.

[0096] A body care device (1000) according to one embodiment of the present invention may further include a driving unit (700) that rotates the main load unit (200) around the load rotation axis (201). In this case, the driving unit (700) may be configured to rotate the pinion gear (401) together with the rotation of the main load unit (200).

[0097] Here, the driving unit (700) may include a driving motor and a driving gear.

[0098] That is, as illustrated in FIG. 10, one driving unit (700) is connected to the main load unit (200) and the pinion gear (401), so that the main load unit (200) and the pinion gear (401) can be rotated together by the rotational force transmitted from the driving unit (700).

[0099] Accordingly, a simplified structure can be achieved compared to a structure in which separate driving units (700) are placed in each of the main load unit (200) and pinion gear (401).

[0100] In this way, in the body care device (1000) according to one embodiment of the present invention, since the rotation of the main load part (200) and the rotation of the pinion gear (401) are performed simultaneously by one driving part (700), the number of driving parts (700) can be minimized, thereby simplifying the overall structure.

[0101] Meanwhile, the body care device (1000) according to the present embodiment may be arranged so that a separate driving unit (700) from the pinion gear (401) drives only the main load unit (200), as needed, so that massage can be performed without the massage arm unit (400) being raised or lowered.

[0102] In a body care device (1000) according to one embodiment of the present invention, the massage arm (400) may further include an elastic body (440) that is installed on the outer surface of the massage body (420) and is elastically deformable.

[0103] When the massage arm (400) comes into contact with the user's massage target area and a massage is performed, there is a concern that pain may be caused to the user due to problems such as pressure being concentrated on a specific area.

[0104] Therefore, it may be desirable to install an elastic body (440) on the outer surface of the massage body (420) to appropriately distribute the pressure when pressure is concentrated on a specific part.

[0105] In this way, the body care device (1000) according to one embodiment of the present invention can partially buffer pressure inappropriately applied to the massage target area, since the elastically deformable elastic body (440) is installed on the outer surface of the massage body (420) of the massage arm (400).

[0106] In a body care device (1000) according to one embodiment of the present invention, the elastic body (440) may be formed as an air bag (441) capable of controlling the degree of air injection.

[0107] When a massage arm (400) comes into contact with a user's massage target area and a massage is performed, some users may feel that the pressure applied is too strong, and other users may feel that the pressure applied is too weak.

[0108] In this way, even when a massage is performed with the same pressure, the feeling of pressure intensity may differ depending on the characteristics of each user, so it may be desirable to have each user adjust the amount of air injected into the air bag (441) installed on the outer surface of the massage body (420).

[0109] In this way, the body care device (1000) according to one embodiment of the present invention can control the pressure applied to the massage target area by controlling the air pressure since the elastic body (440) is formed of an air bag (441).

[0110] In a body care device (1000) according to one embodiment of the present invention, an elastic body (440) may be installed to form a rough surface on the outer surface of a massage body (420).

[0111] As described above, an elastic body (440) may be installed to partially cushion the pressure applied inappropriately to the massage target area, but in order to achieve more effective pressure cushioning, sufficient space must be secured for the elastic body (440) to be elastically deformed.

[0112] Accordingly, it may be desirable to secure sufficient space for the elastic body (440) to be deformed by pressure by forming the elastic body (440) in direct contact with the user's massage target area into a rough structure.

[0113] In this way, in the body care device (1000) according to one embodiment of the present invention, since the outer surface of the massage body (420) on which the elastic body (440) is installed is formed as a rough surface, an extra space can be secured in which the elastic body (440) can be pressed and deformed.

[0114] FIG. 11 and FIG. 12 are drawings showing in more detail the portion where the massage body (420) and the cam cover (410) are combined in a body care device (1000) according to one embodiment of the present invention.

[0115] In a body care device (1000) according to one embodiment of the present invention, the massage body (420) can be hinge-coupled to an end of the cam cover (410). That is, as shown in FIGS. 11 and 12, the massage body (420) can be hinge-rotated at the end of the cam cover (410).

[0116] When the massage arm (400) comes into contact with the user's massage target area and a massage is performed, some users may have thin legs and thus may not have any problems using the massage arm (400), but other users may have thick legs and thus may not be able to fit the placement of the massage arm (400).

[0117] Therefore, it may be desirable to allow the massage arm (400) to rotate on a hinge and be positioned appropriately according to the physical characteristics of each user, so that a wider range of users can receive a massage without difficulty.

[0118] In this way, the body care device (1000) according to one embodiment of the present invention has a massage body (420) hingedly connected to the end of the cam cover (410), so that when a massage is provided to users with different body characteristics, the arrangement of the massage arm (400) can be adjusted to suit the massage target area of ​​each user.

[0119] In a body care device (1000) according to one embodiment of the present invention, the massage arm (400) may further include a torsion spring (450) interposed in a portion where the massage body (420) is coupled to an end of the cam cover (410).

[0120] As described above, even if the massage arm (400) is hinge-rotated and appropriately positioned according to each user's physical characteristics, users with thin legs may feel the massage intensity is weak due to the relatively large amount of empty space. Furthermore, users with thick legs may feel the massage intensity is too strong due to the relatively small amount of empty space.

[0121] Accordingly, by interposing a torsion spring (450) at the joint between the massage body (420) and the cam cover (410), a user with thin legs can be provided with additional pressure equivalent to the rigidity of the torsion spring (450). In addition, a user with thick legs can appropriately limit the intensity of the massage by preventing the massage arm (400) from excessively rotating the hinge due to the torsion spring (450).

[0122] In this way, the body care device (1000) according to one embodiment of the present invention appropriately controls the hinge rotation of the massage body (420) through the torsion spring (450), so that when a massage is performed on users with different body characteristics, the massage arm (400) can appropriately contact the massage target area of ​​each user.

[0123]

[0124] 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.

[0125] According to at least one of the embodiments of the present invention, a massage arm is coupled to a bias cam portion arranged in a main load portion to have a bias, so that when the bias cam portion rotates, the massage arm is driven in the left and right direction, and displacement of the upper and lower portions occurs relatively, so that a drive similar to kneading by a human hand is implemented, so that the massage effect can be further improved.

[0126] In addition, according to at least one of the embodiments of the present invention, since the massage arm part includes a cam cover and a massage body, physical stimulation can be effectively applied to a certain range of massage target areas.

[0127] In addition, according to at least one of the embodiments of the present invention, since a pair of massage arms are driven together when one main rod part rotates, physical stimulation can be applied simultaneously from both sides to the massage target area.

[0128] In addition, according to at least one of the embodiments of the present invention, a pair of massage arms driven together are driven symmetrically to each other, so that more effective physical stimulation can be applied to both sides of the massage target area.

[0129] In addition, according to at least one of the embodiments of the present invention, since the insertion depth of one end of the ball joint portion is variable by the guide bushing installed in the cam cover, even if the ball guide groove portion is formed linearly, the ball joint portion can be driven smoothly.

[0130] In addition, according to at least one of the embodiments of the present invention, since the outer diameter of one end of the ball joint part and the inner diameter of the guide bushing correspond to each other, one end of the ball joint part inserted into the guide bushing can be efficiently driven only in the longitudinal direction.

[0131] In addition, according to at least one of the embodiments of the present invention, the massage arm portion is configured to be able to rise and fall along the longitudinal direction of the base portion, so that the massage target area can be automatically changed and the massage can be performed more conveniently.

[0132] In addition, according to at least one of the embodiments of the present invention, a rack gear is installed in the base portion and a pinion gear is installed in the massage arm portion, so that the lifting and lowering of the massage arm portion can be performed more precisely and stably.

[0133] In addition, according to at least one of the embodiments of the present invention, since the rotation of the main load part and the rotation of the pinion gear are performed together by one driving part, the number of driving parts can be minimized, thereby simplifying the overall structure.

[0134] In addition, according to at least one of the embodiments of the present invention, since an elastically deformable elastic body is installed on the outer surface of the massage body of the massage arm, pressure inappropriately applied to the massage target area can be partially buffered.

[0135] In addition, according to at least one of the embodiments of the present invention, since the elastic body is formed of an air bag, the pressure applied to the massage target area can be adjusted by adjusting the air pressure.

[0136] In addition, according to at least one of the embodiments of the present invention, since the outer surface of the massage body on which the elastic body is installed is formed as a rough surface, an extra space can be secured in which the elastic body can be pressed and deformed.

[0137] In addition, according to at least one of the embodiments of the present invention, since the massage body is hingedly connected to the end of the cam cover, when a massage is performed on users with different body characteristics, the arrangement of the massage arm can be adjusted to suit the massage target area of ​​each user.

[0138] In addition, according to at least one of the embodiments of the present invention, since the hinge rotation of the massage body is appropriately controlled through the torsion spring, when a massage is performed on users with different body characteristics, the massage arm can appropriately contact the massage target area of ​​each user.

Claims

1. Base section; A main load section installed so as to be rotatable around a load rotation axis along the transverse direction of the above base section; A biased cam section that is connected to the main load section so that a cross-section that is not parallel to the virtual line perpendicular to the above-mentioned load rotation axis is penetrated and rotates together with the main load section; A massage arm unit coupled to the bias cam unit so as to be restrained from displacement other than rotation of the bias cam unit; A ball guide groove formed continuously in the transverse direction on the above base portion; and A ball joint part in which one end of the rod is connected to the massage arm part and the other end of the sphere is inserted into the ball guide groove part; A body care device comprising:

2. In paragraph 1, The above massage arm part is, A cam cover that covers the above-mentioned cam section and allows the above-mentioned cam section to slide and rotate inside; and A body care device including a massage body installed to extend longitudinally from an end of the cam cover.

3. In paragraph 2, The above-mentioned bias cam section is arranged in pairs on the above-mentioned main load section, A body care device in which the above massage arm portion is placed in each of the above biased cam portions.

4. In paragraph 3, A body care device, wherein a pair of the above-mentioned biased cams are arranged symmetrically on the main load section.

5. In paragraph 2, The above massage arm part is, A body care device, wherein the cam cover is installed at a portion where the cam cover is connected to the ball joint portion and further includes a guide bushing whose depth of insertion of one end of the ball joint portion is variable.

6. In paragraph 5, A body care device in which the inner diameter of the above guide bushing is formed to correspond to the outer diameter of one end of the above ball joint.

7. In paragraph 1, A body care device in which the above massage arm part is configured to be able to rise and fall in a longitudinal direction relative to the above base part.

8. In paragraph 7, The above base part has a rack gear installed along the longitudinal direction, A body care device in which the above massage arm part is installed with a pinion gear that can mesh with the above rack gear.

9. In paragraph 8, Further comprising a driving unit that rotates the main load unit around the load rotation axis; A body care device, wherein the driving unit rotates the pinion gear together with the rotation of the main load unit.

10. In paragraph 2, The above massage arm part is, A body care device further comprising an elastic body that is installed on the outer surface of the massage body and is elastically deformable.

11. In paragraph 10, A body care device in which the elastic body is formed of an air bag capable of controlling the amount of air injected.

12. In paragraph 11, A body care device, wherein the elastic body is installed to form a rough surface on the outer surface of the massage body.

13. In paragraph 2, A body care device wherein the above massage body is hingedly connected to the end of the cam cover.

14. In paragraph 13, The above massage arm part is, A body care device further comprising a torsion spring interposed in a portion where the massage body is connected to an end of the cam cover.

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