Leg massage part angle adjusting device of massage device

Abstract

The utility model relates to a leg massage part angle adjusting device of a massage device, the angle of a leg massage part relative to a seat is adjusted by rotating the leg massage part of a chair type massage device, the leg massage part angle adjusting device of the massage device comprises a body massage part used for massaging the body of a user; a leg massage unit angle adjustment device, which is a massage device, is provided with: a leg angle actuator, one end of which is connected to the body massage unit, and which expands and contracts by receiving electric power, and a leg massage unit which is rotatably coupled to the front of the body massage unit by means of a leg hinge shaft and which massages the legs of a user; and a link unit connected to the other end of the leg angle actuator and the body massage part, one end of the link unit being slidably provided on a rear surface of the leg massage part, the link unit rotating the leg massage part about a leg hinge axis while rotating by the telescopic movement of the leg angle actuator.

Description

Technical Field

[0001] The utility model relates to a massage device, and more particularly to a leg massage part angle adjustment device for rotating a leg massage part of a chair-type massage device to adjust the angle of the leg massage part relative to a seat part. Background Art

[0002] Massage refers to a medical auxiliary therapy that regulates the body changes of the massage object, helps blood circulation and relieves fatigue of the massage object by applying various forms of mechanical stimulation to the body part of the massage object, such as kneading, pressing, stretching, patting or moving a part of the body.

[0003] Due to economic and time reasons, there is an increasing demand for massage devices that provide manual massage functions. As the demand for relieving stiff muscles and eliminating fatigue or stress through massage increases, various massage devices with good time and cost benefits are introduced.

[0004] Recently, people's concern for health is increasing, and massage devices have changed from simply providing massage functions to electronic devices that provide a variety of additional functions and / or medical functions. Therefore, research on how to effectively control massage devices is still ongoing.

[0005] In particular, since the parts to be massaged, desired stimulation, etc. may differ for each user, research activities on devices and methods for providing massage in an optimized form to each user are increasing.

[0006] As an example, an example of a massage device is disclosed in Korean Patent Gazette No. 10-2020-0100561, which includes: a leg massage part, which includes a first leg massage part corresponding to one leg of a user and a second leg massage part corresponding to the other leg of the user; and a driving module to rotate the leg massage part; the leg massage parts on both sides rotate independently through the operation of the driving module while allowing the user to receive massage.

[0007] The driving module for angle adjustment of the leg massage part disclosed in the patent publication includes an actuator and a link unit that transmits a stroke variation of the actuator to a joint structure of the leg massage part.

[0008] The portion of the link unit connected to the main frame and the actuator is folded and rotated relative to the portion of the link unit connected to the leg massage part with reference to the bent portion, thereby being configured to transmit the telescopic movement of the actuator to the leg massage part.

[0009] However, the connecting rod unit with the above structure transmits the telescopic movement of the actuator to the leg massage part through the connecting rod structure divided into two parts. Therefore, in order to increase the rotational movement range of the leg massage part, it is necessary to increase the stroke of the actuator. This increases the load of the actuator, resulting in manufacturing costs and operational stability problems.

[0010] Patent document 1: Korean Patent Publication No. 10-2022-0158582 (published on December 1, 2022). Utility Model Content

[0011] Problems to be solved by utility models

[0012] The present invention is used to solve the above-mentioned previous problems. The purpose of the present invention is to provide an angle adjustment device for a leg massage part of a massage device. The device improves the structure of a connecting rod unit that transmits the telescopic movement of an actuator to the leg massage part, so that even if the stroke of the actuator is reduced, the rotation range of the leg massage part can be maintained or increased, and the structural stability and movement stability can be improved.

[0013] Means used to solve problems

[0014] To achieve the above-mentioned purpose, according to the utility model, a leg massage part angle adjustment device of a massage device, the massage device includes a body massage part for massaging a user's body and a leg massage part rotatably connected to the front part of the body massage part with a leg hinge shaft as the medium and massaging the user's legs, the leg massage part angle adjustment device includes: a leg angle actuator, one end of which is connected to the body massage part and receives electricity to extend and retract; and a connecting rod unit, which is connected to the other end of the leg angle actuator and the body massage part, one end of the connecting rod unit is slidably arranged on the rear surface of the leg massage part, so that the connecting rod unit can be rotated by the telescopic movement of the leg angle actuator, and the leg massage part is rotated around the leg hinge shaft.

[0015] Optionally, the link unit includes: an operating link member, one end of which is rotatably connected to the body massage part via a first link shaft, the operating link member is connected to the other end of the leg angle actuator, and rotates around the first link shaft through the telescopic movement of the leg angle actuator; a sub-link member, one end of which is rotatably connected to the body massage part via a second link shaft; and a wheel link member, the middle part of which is relatively rotatably connected to the other end of the operating link member via a third link shaft, one end of the wheel link member is relatively rotatably connected to the other end of the sub-link member via a fourth link shaft, and the other end of the wheel link member contacts the rear surface of the leg massage part.

[0016] Optionally, the connecting rod unit also includes: a base connecting rod, which is combined with the body massage part, and a first connecting rod shaft connecting hole combined with a first connecting rod shaft is formed at the lower part of the base connecting rod, and the first connecting rod shaft is connected to one end of the operating connecting rod component; a second connecting rod shaft connecting hole combined with a second connecting rod shaft is formed at the upper part of the base connecting rod, and the second connecting rod shaft is connected to one end of the sub-connecting rod component.

[0017] Optionally, the link unit further includes: a sliding wheel rotatably connected to the other end of the wheel link member to roll along the rear surface of the leg massage part.

[0018] Optionally, the sub-link member is provided with a link stopper that contacts the operating link member and limits a rotation range of the operating link member.

[0019] Optionally, a connecting rib connected to the leg angle actuator is formed protruding rearward at the middle part of the operating link member, and a avoiding groove is formed recessed forward at the lower side of the connecting rib to prevent the fourth link shaft from being blocked.

[0020] Optionally, both sides of the plates of the operating link member, the sub-link member and the wheel link member are bent at right angles so that the two side surfaces are connected to each other through the first link shaft to the fourth link shaft so as to be relatively rotatable.

[0021] Optionally, the link unit includes: a rotating link member, one end of which is rotatably connected to the body massage part via a fifth link shaft, and the other end of which is in contact with the rear surface of the leg massage part, and can rotate around the fifth link shaft and slide along the rear surface of the leg massage part; and a transmitting link member, one end of which is rotatably connected to the rotating link member via a sixth link shaft, and the other end of which is connected to the other end of the leg angle actuator to transmit the telescopic movement of the leg angle actuator to the rotating link member.

[0022] Optionally, the link unit further includes: a sliding wheel rotatably connected to the other end of the rotating link member and rolling along the rear surface of the leg massage part.

[0023] Optionally, it also includes: a fixing bracket to fix the leg angle actuator to the frame of the body massage part.

[0024] Utility Model Effect

[0025] Since the connecting rod unit that transmits the telescopic movement of the leg angle actuator to the leg massage part moves up and down along the rear surface of the leg massage part while transmitting external force to the leg massage part, the following advantage is provided: even if the stroke of the telescopic rod of the leg angle actuator is set to be smaller than before, the leg massage part angle adjustment device of the utility model can rotate the leg massage part within the same or larger rotation range than before.

[0026] Therefore, the power consumption can be reduced by reducing the load on the leg angle actuator, and since a leg angle actuator with a smaller capacity can be provided, there is also an advantage that the cost can be reduced.

[0027] In addition, the leg massage part angle adjustment device of the utility model can adjust the length of the wheel link component of the link unit, so that the rotation range of the leg massage part can be easily adjusted according to needs.

[0028] In addition, the rotation range of the leg massage part can be adjusted by adjusting the vertical length of the link stopper formed on the sub-link member of the link unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 2 is a three-dimensional diagram showing a massage device according to an embodiment of the present invention.

[0030] Figure 2 1 is a perspective view showing a portion of the internal skeleton constituting a massage device according to an embodiment of the present invention.

[0031] Figure 3a to Figure 3c 1 is a side view showing a structure and operation example of a leg massage part angle adjustment device of a massage device according to an embodiment of the present invention.

[0032] Figure 4 1 is a perspective view showing an angle adjustment device for a leg massage portion of a massage device according to an embodiment of the present invention.

[0033] Figure 5 1 is an exploded perspective view showing an angle adjustment device for a leg massage portion of a massage device according to an embodiment of the present invention.

[0034] Figures 6a to 6c 1 is a perspective view and a side view showing an operation example of the leg massage part angle adjustment device according to an embodiment of the present invention.

[0035] Figure 7 1 is a diagram showing a change in the rotation range of the leg massage part according to the length of the wheel link member of the link unit constituting the leg massage part angle adjustment device according to an embodiment of the present invention.

[0036] Figure 8It is a perspective view showing another embodiment of the angle adjustment device of the leg massage part of the massage device according to the present utility model.

[0037] Figures 9a to 9c It is shown Figure 8 A side view of an operation example of the leg massage portion angle adjustment device shown in FIG.

[0038] Fig.10 It shows the composition Figure 8 FIG. 1 is a diagram of an embodiment of a fixing bracket of a leg massage portion angle adjustment device shown in FIG.

[0039] Description of Reference Numerals

[0040] 1000: massage device; 1100: body massage part; 1130: main frame; 1133: seat frame; 1200: arm massage part; 1300: leg massage part; 1400: leg angle actuator; 1410: telescopic rod; 1420: fixed bracket; 1510: base link; 1520: operating link component; 1530: sub-link component; 1535: link stopper; 1540: wheel link component; 1550: sliding wheel; 1561~1564: 1st to 4th link shafts; 1570: rotating link component; 1580: transmission link component; 1585: sliding wheel; 1591~1593: 5th to 7th link shafts. DETAILED DESCRIPTION

[0041] The above-mentioned objects, features and advantages of the present disclosure will be more clearly understood through the following embodiments related to the accompanying drawings.

[0042] The following specific structures and functional descriptions are only used to illustrate the embodiments based on the concepts of the present disclosure. The embodiments based on the concepts of the present disclosure can be implemented in various ways and should not be construed as being limited to the embodiments described in this specification or application.

[0043] Based on the embodiments of the concepts of the present disclosure, various changes can be applied and various modes can be provided, so specific embodiments are shown in the drawings and described in detail in this specification or application. However, this does not limit the embodiments of the concepts of the present disclosure to specific disclosure modes, but should be understood to include all changes, equivalents and substitutes included in the ideas and technical scope of the present disclosure.

[0044] Although the terms "first" and "second" can be used to describe various components, the components are not limited to the terms. The terms are only used to distinguish one component from another component. For example, without departing from the scope of the present disclosure, the first component can be named as the second component, and similarly, the second component can also be named as the first component.

[0045] When it comes to a certain component being “connected” or “coupled” to another component, it should be understood that it can be directly connected or coupled to the other component, and other components may exist between the two. On the contrary, when it comes to a certain component being “directly connected” or “directly coupled” to another component, it should be understood that there are no other components between the two. Other expressions used to explain the relationship between the components, such as “located between” and “between” or “adjacent to” and “directly adjacent to”, should also be interpreted in the same way.

[0046] The terms used in this specification are used only to illustrate specific embodiments and are not intended to limit the content of the present disclosure. Unless otherwise clearly indicated in the context, expressions in the singular include expressions in the plural. Terms such as "including" or "having" in this specification are used to specify the existence of the described features, numbers, steps, actions, constituent elements, parts, or combinations thereof, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, actions, constituent elements, parts, or combinations thereof.

[0047] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those of ordinary skill in the art. Predefined terms commonly used should be interpreted as having meanings consistent with the meanings in the context of the relevant technology and should not be interpreted as ideal or overly formal meanings unless explicitly defined in this specification.

[0048] In this specification, an actuator refers to a structure that can provide a driving force. For example, the actuator may include a motor, a linear motor, an electronic motor, a direct current (DC) motor, an alternating current (AC) motor, a linear actuator, an electric actuator, etc., but is not limited thereto.

[0049] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0050] Figure 1 FIG. 6 to FIG. 6 are diagrams showing structures of a massage device and a leg massage portion angle adjustment device provided in the massage device according to an embodiment of the present invention.

[0051] Reference Figure 1 and Figure 2 According to an embodiment of the present invention, a massage device 1000 may include a massage portion that forms an area for accommodating at least a portion of a user's body, supports the user's body (eg, a torso), and massages a portion of the user's body.

[0052] The massage part may include a body massage part 1100 for massaging at least a portion of a user's body, an arm massage part 1200 for massaging the user's arms, and a leg massage part 1300 for massaging the user's legs.

[0053] The body massaging part 1100 may massage at least a portion of the user's body. For example, the body massaging part 1100 may massage at least a portion of the user's upper body and lower body.

[0054] Specifically, the body massage part 1100 may include: a massage module 1500, which provides a massage function to at least a part of the user's body; an audio output module 1120, which is used to provide any form of audio output to the user; a main frame 1130, which constitutes the frame of the body massage part 1100 and supports the user's body; and a user input part 1140, which is used to receive any form of input from the user, etc.

[0055] The above-mentioned structures of the body massage part 1100 are merely exemplary embodiments. In addition to the above-mentioned structures, the body massage part 1100 may further include various structures.

[0056] In addition, if Figure 1 and Figure 2 The shape and structure of the massage device 1000 shown are merely examples. Without departing from the scope defined by the claims of the present invention, various forms of massage devices 1000 should also fall within the scope of the present invention.

[0057] The body massage part 1100 may form a space of any shape for accommodating the user. The body massage part 1100 may have a space of a shape corresponding to the shape of the user's body. Figure 1 As shown, the body massage part 1100 can be implemented in a seated manner that can accommodate the entire body or a part of the body of the user, thereby supporting at least a part of the body of the user. For example, the body massage part 1100 may include: a backrest 1101 for supporting at least a part of the upper body of the user; and a seat part 1102 for supporting at least a part of the lower body of the user (e.g., buttocks and thighs).

[0058] The portion of the body massage part 1100 that contacts the ground may include any material or any component (eg, a non-slip pad, etc.) for enhancing friction, and may include wheels for enhancing the mobility of the massage device 1000 .

[0059] At least a portion of the body massage part 1100 is capable of sliding. For example, when the body massage part 1100 starts massaging, or when the body massage part 1100 is driven, at least a portion of the body massage part 1100 can slide forward. In addition, the body massage part 1100 can be tilted backward. As a result, the body massage part 1100 can provide massage in a state tilted backward. For example, the massage device 1000 may include a tilt actuator to tilt the massage device 1000 (or the body massage part 1100) toward the rear of the massage device 1000 (or the body massage part 1100). The massage device 1000 can tilt the body massage part 1100 or restore it to its original state by driving the above-mentioned tilt actuator. At this time, the tilt actuator can be configured at least a portion of the massage device (e.g., the base frame).

[0060] According to an embodiment of the utility model, the massage device 1000 may include at least one airbag (not shown) for performing finger pressure on the body. The airbag may be located in at least a portion of the body massage part 1100 (for example, in the entire area of ​​the body massage part 1100, at least one of the area corresponding to the user's shoulders, the area corresponding to the pelvis, and the area corresponding to the waist), at least a portion of the arm massage part 1200, and at least a portion of the leg massage part 1300, but is not limited thereto and may be provided in multiple portions of the massage device 1000.

[0061] The massage device 1000 may include an air supply unit that can inflate the airbags by supplying air to the airbags. The air supply unit may be located inside the body massage part 1100 or the leg massage part 1300. Alternatively, the air supply unit may be located outside the massage device 1000.

[0062] The main frame 1130 of the body massage part 1100 is used to form the frame of the internal structure of the body massage part 1100, and can be implemented by metal materials or plastic materials, etc. For example, the main frame 1130 can be implemented by iron, alloy, steel, etc., but is not limited thereto, and can be implemented by various strong materials.

[0063] According to an embodiment of the present invention, the main frame 1130 may include an upper frame 1131 provided with the massage module 1500 and a base frame 1135 supporting the upper frame 1131 on the ground.

[0064] The upper frame 1131 may be implemented in various shapes. For example, the upper frame 1131 may be divided into an S frame, an L frame, an S&L frame, a double S&L frame according to the shape, but is not limited thereto.

[0065] The S frame refers to a frame in which at least a portion of the upper frame 1131 is in an S-shaped curved shape. The L frame refers to a frame in which at least a portion of the upper frame 1131 is in an L-shaped folded shape. The S&L frame refers to a frame including both an S-shaped curved shape and an L-shaped folded shape. The double S&L frame refers to a frame including an L-shaped folded shape and two portions of an S-shaped curved shape.

[0066] The upper side of the upper frame 1131 may be provided with a backrest frame 1132 constituting the skeleton of the backrest portion 1101 for supporting at least a part of the upper body of the user (e.g., shoulders, back and waist), and the lower side may be provided with a seat frame 1133 constituting the skeleton of the seat portion 1102 for supporting at least a part of the lower body of the user (e.g., buttocks and thighs).

[0067] The base frame 1135 refers to a portion of the main frame 1130 that supports the upper frame 1131 and contacts the ground. The base frame 1135 may include a base upper frame 1136 and a base lower frame 1137.

[0068] The base upper frame 1136 may support the upper frame 1131, and the base lower frame 1137 may be in contact with the ground. In addition, the base upper frame 1136 may be provided in a manner of being connected to the base lower frame 2212.

[0069] In addition, the base upper frame 1136 can move along the base lower frame 1137. For example, the base upper frame 1136 can slide forward and / or backward along the base lower frame 1137. In this case, the seat frame 1133 of the upper frame 1131 is connected to the base upper frame 1136 and can move with the movement of the base upper frame 1136.

[0070] For example, when the base upper frame 1136 moves forward, the upper frame 1131 may also move forward together, and when the base upper frame 1136 moves backward, the upper frame 1131 may also move backward together. Thus, the body massage part 1000 can be allowed to slide.

[0071] Specifically, in order to enable the base upper frame 1136 to move, a moving wheel may be provided at the lower portion of the base upper frame 1136. In addition, a guide member capable of guiding the moving wheel may be provided at the upper portion of the base lower frame 1137. The moving wheel provided on the base upper frame 1136 moves along the guide member provided on the base lower frame 1137, thereby allowing the base upper frame 1136 to move forward or backward.

[0072] The leg massage part 1300 is configured to massage the user's calves and feet while accommodating both legs of the user. The leg massage part 1300 may be rotatably connected to the front end of the seat frame 1133 around the leg hinge shaft 1320 via the leg connection frame 1310 .

[0073] The leg massage part 1300 may include: a first leg massage part 1300a corresponding to one leg of the user; and a second leg massage part 1300b corresponding to the other leg of the user. In this case, the first leg massage part 1300a may correspond to the right leg of the user, and the second leg massage part 1300b may correspond to the left leg of the user. However, this is a distinction made for convenience, and the first leg massage part 1300a may also correspond to the left leg of the user, and the second leg massage part 1300b may also correspond to the right leg of the user.

[0074] The first leg massage part 1300a and the second leg massage part 1300b can be controlled together to rotate relative to the seat frame 1133, but differently, they can also be controlled to rotate independently of each other. For example, the first leg massage part 1300a and the second leg massage part 1300b can be rotated independently of each other around the leg hinge shaft 1320 by two leg angle actuators 1400 that operate independently by the control part of the massage device, so that the user can make the legs on both sides receive different massages or make the legs on both sides receive alternating massages as needed. In addition, the user can also make the legs on both sides receive stretching or massage due to rotation, in which case the massage device 1000 can rotate the legs on both sides of the user simultaneously or individually.

[0075] When the first leg massage part 1300a and the second leg massage part 1300b are configured to rotate simultaneously on a single leg angle actuator 1400 around the leg hinge shaft 1320, the first leg massage part 1300a and the second leg massage part 1300b can be combined together on a leg connection frame rotatably connected to the front end of the seat frame 1133 via the leg hinge shaft 1320 and rotate. However, when the first leg massage part 1300a and the second leg massage part 1300b are constructed to be independently driven to rotate, the first leg massage part 1300a and the second leg massage part 1300b are independently combined on the leg connecting frame 1310 which is independently rotatably connected to the front end part of the seat frame 1133 via the leg hinge shaft 1320, and the leg connecting frame 1310 is respectively connected to two leg angle actuators 1400 which are independently arranged on the lower side of the seat frame 1133 to operate so as to be able to independently rotate and adjust the angle relative to the seat frame 1133.

[0076] Reference Figures 3a to 6cThe leg angle actuator 1400 that enables the first leg massage part 1300a and the second leg massage part 1300b to rotate simultaneously or independently around the leg hinge shaft 1320 includes: a motor that operates by electric energy applied from a control part (not shown); and a telescopic rod 1410 that contracts or extends through a power transmission mechanism that converts the rotational force of the motor into a linear motion. The front end of the telescopic rod 1410 is connected to a connecting rod unit to transmit an external force to the first leg massage part 1300a and / or the second leg massage part 1300b through the connecting rod unit, thereby rotating the first leg massage part 1300a and / or the second leg massage part 1300b simultaneously or independently.

[0077] One end of the leg angle actuator 1400 may be connected to the body massage part 1100, and the other end may be connected to the connecting rod unit. For example, the body of the leg angle actuator 1400 may be connected to the lower part of the seat frame 1133 of the body massage part 1100, and the front end of the telescopic rod 1410 of the leg angle actuator 1400 may be connected to the connecting rod unit.

[0078] The connecting rod unit is arranged between the rear surface of the first leg massage part 1300a and / or the second leg massage part 1300b and the leg angle actuator 1400, and can transmit external force to the first leg massage part 1300a and / or the second leg massage part 1300b while folding as the telescopic rod 1410 of the leg angle actuator 1400 is extended or contracted, and enable the first leg massage part 1300a and / or the second leg massage part 1300b to rotate relative to the seat frame 1133 with the leg hinge shaft 1320 as the center.

[0079] For example, the link unit includes: a base link 1510, which is combined with the seat frame 1133; an operating link member 1520, one end of which is rotatably connected to the base link 1510, and a telescopic rod 1410 of the leg angle actuator 1400 is connected; a sub-link member 1530, one end of which is rotatably connected to the base link 1510; a wheel link member 1540, which is connected to the other end of the operating link member 1520 and the other end of the sub-link member 1530; and a sliding wheel 1550, which is rotatably connected to the wheel link member 1540 so as to be able to roll along the rear surface of the leg massage part 1300.

[0080] The base link 1510 is formed in the shape of a plate bent substantially in a "C" shape so as to be fixed to and coupled to the front side of the seat frame 1133. A cutout portion 1513 into which the front side frame of the seat frame 1133 is inserted may be formed open on the rear surface of the base link 1510. First link shaft connection holes 1511 and second link shaft connection holes 1512 to which one end of the operation link member 1520 and one end of the sub-link member 1530 are connected are respectively formed at the lower and upper portions on both sides of the base link 1510.

[0081] One end of the operation link member 1520 and one end of the sub-link member 1530 are rotatably connected to the base link 1510 by a first link shaft 1561 and a second link shaft 1562 which are respectively inserted into and coupled to the first link shaft connection hole 1511 and the second link shaft connection hole 1512 of the base link 1510.

[0082] The operation link member 1520 is formed in the shape of a plate bent in a "C" shape. One end thereof is rotatably connected to the base link 1510 via the first link shaft 1561, and the other end is rotatably connected to the middle portion of the wheel link member 1540 via the third link shaft 1563. Through holes 1521 and 1522 to which the first link shaft 1561 and the second link shaft 1562 are connected may be formed at one end and the other end of the operation link member 1520.

[0083] A connection rib 1523 connected to the telescopic rod 1410 of the leg angle actuator 1400 protrudes rearward and is formed at approximately the middle portion of the operation link member 1520. The connection rib 1523 is formed with a through hole 1524 fastened by a fastening member (not shown) such as a pin so as to be rotatably connected to the front end portion of the telescopic rod 1410 by the fastening member. In addition, an avoidance groove 1525 is formed recessed forward on the lower side of the connection rib 1523 of the operation link member 1520, and the avoidance groove 1525 is used to prevent the fourth link shaft 1564 connecting one end of the sub-link member 1530 and one end of the wheel link member 1540 from being obstructed.

[0084] The sub-link member 1530 is still generally formed in a "C" shape. One end thereof is rotatably connected to the second link shaft connection holes 1512 at the upper portions on both sides of the base link 1510 via the second link shaft 1562, and the other end is rotatably connected to one end of the wheel link member 1540 via the fourth link shaft 1564.

[0085] The operating link member 1520 rotates about the first link shaft 1561 through the space between the two side surfaces of the sub-link member 1530. A link stopper 1535 is provided on the sub-link member 1530 so that when the operating link member 1520 rotates about the first link shaft 1561, it contacts the operating link member 1520 while restricting the rotation range of the operating link member 1520. The link stopper 1535 is configured in the form of a plate that spans both sides of the sub-link member 1530, connecting the two side surfaces of the sub-link member 1530 while the lower end contacts the operating link member 1520 and restricts the rotation range of the operating link member 1520. In this way, the lower end of the link stopper 1535 can contact the operating link member 1520, and thus the rotation range of the operating link member 1520 can be adjusted by adjusting the vertical length of the link stopper 1535.

[0086] The middle part of the wheel link member 1540 is rotatably connected to one end of the operating link member 1520 via the third link shaft 1563, and one end of the wheel link member 1540 is rotatably connected to one end of the sub-link member 1530 via the fourth link shaft 1564. Further, the sliding wheel 1550 is rotatably connected to the other end of the wheel link member 1540 so that when the wheel link member 1540 rotates relative to the sub-link member 1530 about the fourth link shaft 1564 and is folded, the sliding wheel 1550 rolls along the rear surface of the leg massage part 1300 while transmitting an external force to the leg massage part 1300.

[0087] The wheel link member 1540 may also have a frame shape bent in a "匚" shape to have high mechanical strength. At this time, in order for one end of the wheel link member 1540 to be connected to the sliding wheel 1550, the lower part of one side surface or both side surfaces of the wheel link member 1540 may be formed obliquely to converge toward the one end side.

[0088] The central part of the sliding wheel 1550 is rotatably connected to one end of the wheel link member 1540. When the sliding wheel 1550 contacts the rear surface of the leg massage part 1300 and the wheel link member 1540 is folded, the sliding wheel 1550 moves in the vertical direction along the rear surface of the leg massage part 1300 while transmitting an external force that can rotate the leg massage part 1300.

[0089] The leg massage part angle adjustment device including the link unit configured in this structure operates as follows.

[0090] Figure 3a and Figure 6a shows the initial state in which the leg massage part 1300 is folded. When the telescopic rod 1410 of the leg angle actuator 1400 extends in this initial state, as Figure 3b and Figure 6b As shown, the operation link member 1520 rotates forward around the first link shaft 1561 .

[0091] As a result, the wheel-link member 1540 connected to one end of the operating link member 1520 rotates together, but at this time, one end of the wheel-link member 1540 is connected to one end of the sub-link member 1530 via the fourth link shaft 1564, so the wheel-link member 1540 rotates forward relative to the sub-link member 1530 with the fourth link shaft 1564 as the center and is folded at the same time.

[0092] The wheel link member 1540 rotates around the fourth link shaft 1564, and the sliding wheel 1550 provided at the other end of the wheel link member 1540 rolls upward along the rear surface of the leg massage part 1300 while applying force forward. Therefore, the leg massage part 1300 rotates forward around the leg hinge shaft 1320 to become an unfolded state (see FIG. Figure 3c and Figure 6c ).

[0093] In this state, if one wants to fold the leg massage part 1300 again, one only needs to perform the above process in reverse order to restore the leg massage part 1300 to its previous state.

[0094] On the other hand, the leg massage part angle adjustment device having the link unit of the above structure can adjust the length of the wheel link member 1540, so that the rotation range of the leg massage part 1300 can be easily adjusted according to needs.

[0095] That is, Figure 7 As shown, if the length of the wheel-link member 1540 is designed to be relatively short, the rotation angle of the leg massage part 1300 can be relatively small, and if the length of the wheel-link member 1540 is designed to be relatively long, the rotation angle of the leg massage part 1300 can be relatively large.

[0096] In addition, as described above, the rotation range of the leg massage part 1300 can also be adjusted by adjusting the vertical length of the link stopper 1535 of the sub-link member 1530 .

[0097] Figures 8 to 10 2 is a diagram of a link unit constituting a leg massage portion angle adjustment device according to another embodiment of the present invention.

[0098] The link unit of the leg massage part angle adjustment device constituting this embodiment includes: a rotating link member 1570, one end of which is rotatably connected to the seat frame 1133 of the body massage part 1100 via a fifth link shaft 1591; and a transmission link member 1580, which is connected to the leg angle actuator 1400 to transmit the telescopic movement of the telescopic rod 1410 of the leg angle actuator 1400 to the rotating link member 1570.

[0099] One end of the rotating link member 1570 is rotatably connected to the lower side of the front end part of the seat frame 1133 via a fifth link shaft 1591. A sliding wheel 1585 that rolls along the rear surface of the leg massage part 1300 may be provided at the other end of the rotating link member 1570. Similarly to the sliding wheel 1550 of the above link unit, the sliding wheel 1585 is rotatably provided at the other end of the rotating link member 1570, and when the rotating link member 1570 rotates forward around the fifth link shaft 1591, it rolls along the rear surface of the leg massage part 1300 while transmitting the rotational force of the rotating link member 1570 to the leg massage part 1300.

[0100] The rotating link member 1570 may have a rod or frame shape bent in a "C" shape to be able to exert sufficient support strength.

[0101] The transmission link member 1580 may be composed of a plate bent in a substantially "C" shape. One end of it is rotatably connected to the upper side of the rotating link member 1570 via a sixth link shaft 1592, and the other end is connected to the telescopic rod 1410 of the leg angle actuator 1400 via a seventh link shaft.

[0102] As Figure 9a shown, in the state where the rotating link member 1570 is folded relative to the seat frame 1133, the axis formed by the sixth link shaft 1592 and the seventh link shaft 1593 of the transmission link member 1580 forms a predetermined angle with the longitudinal axis of the rotating link member 1570. As the transmission link member 1580 moves forward through the leg angle actuator 1400, the transmission link member 1580 rotates around the fifth link shaft 1591. At this time, as Figure 9b and Fig.9c shown, the angle formed by the axis formed by the sixth link shaft 1592 and the seventh link shaft 1593 of the transmission link member 1580 and the longitudinal axis of the rotating link member 1570 gradually increases.

[0103] When the telescopic movement of the leg angle actuator 1400 is transmitted to the leg massage part 1300 by using the link unit having the above structure, in order to enable the leg massage part 1300 to rotate more smoothly, it is preferred that the leg angle actuator 1400 is fixed to the seat frame 1133 so as not to be movable. Figure 9a and Fig.10 The fixing bracket 1420 shown in the figure fixes the leg angle actuator 1400 to the seat frame 1133, and the fixing bracket 1420 is formed to be substantially The bent plate has the following shape, wherein the upper end is fixed to the seat frame 1133 by a fastening device such as a bolt or a screw, and the lower part is formed with a rod through hole 1421 through which the telescopic rod 1410 of the leg angle actuator 1400 passes.

[0104] The other end of the transmission link member 1580 connected to the telescopic rod 1410 of the leg angle actuator 1400 may have a reinforcement end 1581 that connects the two side surfaces to each other in a state of extending forward by a certain distance. The reinforcement end 1581 is formed by protruding forward from one end of the two side surfaces of the transmission link member 1580, thereby preventing the transmission link member 1580 from being blocked during the extension or contraction of the telescopic rod 1410 of the leg angle actuator 1400.

[0105] In addition, an obstruction avoidance groove 1582 is also formed on the other end of the transmission link member 1580 so as to be recessed forward to prevent obstruction with the seat frame 1133 .

[0106] In this way, if the linear motion of the telescopic rod 1410 of the leg angle actuator 1400 can be transmitted to the leg massage part 1300 through the rotating link member 1570 and the transmission link member 1580, it has the advantage of being able to simplify the overall structure and operation of the link unit constituting the leg massage part angle adjustment device.

[0107] As described above, the connecting rod unit that transmits the telescopic movement of the leg angle actuator 1400 to the leg massage part 1300 moves up and down along the rear surface of the leg massage part 1300 while transmitting external force to the leg massage part 1300. Therefore, even if the stroke of the telescopic rod 1410 of the leg angle actuator 1400 is set to be smaller than before, the leg massage part angle adjustment device of the utility model can rotate the leg massage part 1300 in the same or larger rotation direction as before.

[0108] Therefore, the power consumption can be reduced by reducing the load of the leg angle actuator 1400, and since a smaller capacity leg angle actuator 1400 can be provided, there is also an advantage that the cost can be reduced.

[0109] The above-mentioned technical concept of the present invention is described in conjunction with the accompanying drawings, but this is only an exemplary description of the preferred embodiment of the present invention and does not limit the present invention. In addition, those skilled in the art of the present invention should understand that various modifications and imitations can be made without departing from the technical concept of the present invention.

Claims

1. A leg massage part angle adjustment device of a massage device, the massage device comprising a body massage part for massaging a user's body and a leg massage part rotatably coupled to a front portion of the body massage part via a leg hinge shaft and massaging the user's legs, characterized in that: The leg massage part angle adjustment device comprises: A leg angle actuator, one end of which is connected to the body massage part and expands and contracts by receiving power, and A connecting rod unit is connected to the other end of the leg angle actuator and the body massage part, and one end of the connecting rod unit is slidably arranged on the rear surface of the leg massage part, so that the connecting rod unit can be rotated through the telescopic movement of the leg angle actuator and the leg massage part can be rotated around the leg hinge axis.

2. The leg massage part angle adjustment device of the massage device according to claim 1, characterized in that: The connecting rod unit comprises: An operating link member, one end of which is rotatably connected to the body massage part via a first link shaft, and the operating link member is connected to the other end of the leg angle actuator, and rotates around the first link shaft through the telescopic movement of the leg angle actuator. A sub-link member, one end of which is rotatably connected to the body massage part via the second link shaft, and A wheel-link component, wherein the middle portion of the wheel-link component is relatively rotatably connected to the other end of the operating link component via a third link shaft, one end of the wheel-link component is relatively rotatably connected to the other end of the sub-link component via a fourth link shaft, and the other end of the wheel-link component contacts the rear surface of the leg massage portion.

3. The leg massage part angle adjustment device of the massage device according to claim 2, characterized in that: The connecting rod unit also includes: A base connecting rod is combined with the body massage part. A first connecting rod shaft connecting hole combined with a first connecting rod shaft is formed at the lower part of the base connecting rod. The first connecting rod shaft is connected to one end of the operating connecting rod component. A second connecting rod shaft connecting hole combined with a second connecting rod shaft is formed at the upper part of the base connecting rod. The second connecting rod shaft is connected to one end of the sub-connecting rod component.

4. The leg massage part angle adjustment device of the massage device according to claim 2, characterized in that: The connecting rod unit also includes: A sliding wheel is rotatably connected to the other end of the wheel link member to roll along the rear surface of the leg massage part.

5. The leg massage part angle adjustment device of the massage device according to claim 2, characterized in that: The sub-link member is provided with a link stopper that contacts the operation link member and limits a rotation range of the operation link member.

6. The leg massage part angle adjustment device of the massage device according to claim 2, characterized in that: A connecting rib connected to the leg angle actuator is formed protruding rearward at the middle portion of the operating link member, and a avoiding groove is formed recessed forward at the lower side of the connecting rib to prevent the fourth link shaft from being blocked.

7. The leg massage part angle adjustment device of the massage device according to any one of claims 2 to 6, characterized in that: Both sides of the plates of the operating link member, the sub-link member and the wheel link member are bent at right angles, so that the two side surfaces are connected to each other through the first link shaft to the fourth link shaft so as to be relatively rotatable.

8. The leg massage part angle adjustment device of the massage device according to claim 1, characterized in that: The connecting rod unit comprises: a rotating link member, one end of which is rotatably connected to the body massage part via a fifth link shaft, and the other end of which is in contact with the rear surface of the leg massage part and can rotate around the fifth link shaft and slide along the rear surface of the leg massage part; and A transfer link member has one end rotatably connected to the rotation link member via a sixth link shaft, and the other end is connected to the other end of the leg angle actuator to transfer the telescopic movement of the leg angle actuator to the rotation link member.

9. The leg massage part angle adjustment device of the massage device according to claim 8, characterized in that: The connecting rod unit also includes: A sliding wheel is rotatably connected to the other end of the rotating link member and rolls along the rear surface of the leg massaging part.

10. The leg massage part angle adjustment device of the massage device according to claim 8, characterized in that: Also includes: A fixing bracket fixes the leg angle actuator to the frame of the body massage part.

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