Leg massage part connecting device of massage device

Abstract

The present disclosure relates to a leg massage part connecting device of a massage device, which connects a leg massage part to a seat frame of the massage device in a movable manner, the leg massage part connecting device comprises a swing adjusting part enabling the leg massage part to rotate in the horizontal direction and / or a leg angle adjusting part enabling the leg massage part to rotate in the vertical direction.

Description

Technical Field

[0001] The present invention relates to a massage device having a leg massage unit, and more particularly, to a leg massage unit connection device of a massage device that movably connects the leg massage unit to a main frame of the massage device. Background Art

[0002] Massage refers to a medical auxiliary therapy that adjusts the physical changes of a massage subject by applying various mechanical stimuli to a local part of the massage subject's body, such as kneading, pressing, stretching, patting, or moving the body, which helps blood circulation and relieves the fatigue of the massage subject.

[0003] Due to economic circumstances and time reasons, there has been an increasing demand for massage devices or massage instruments that provide artificial massage functions. That is, as the demand for relieving stiff muscles and eliminating fatigue or stress through massage has increased, various massage devices with good time and cost efficiency have been introduced.

[0004] Recently, people's attention to health has been increasing, and massage devices have evolved from simply providing massage functions to electronic devices that provide various additional functions and / or medical functions.

[0005] In addition, massage devices have been developed into devices that can assist in stretching exercises for muscles, ligaments, etc. of body parts.

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Patent Document 1: Chinese Patent Publication No. 114712798 (Publication date: July 8, 2022)

[0009] Patent Document 2: Korean Patent Publication No. 10-2023-0153967 (Publication date: November 7, 2023) Summary of the Invention

[0010] Problems to be Solved by the Invention

[0011] An object of the present invention is to provide a leg massage unit driving device of a massage device that connects the leg massage unit to the main frame of the massage device in a manner that can be angle-adjusted in the vertical direction.

[0012] An object of the present invention is to provide a leg massage unit connection device of a massage device that connects the leg massage unit to the main frame of the massage device so that it can perform a swinging motion of rotating to one side and the other side in the horizontal direction.

[0013] Means for Solving the Problems

[0014] According to an embodiment of the present invention, a leg massage unit connecting device of a massage device, which movably connects a leg massage unit to a seat frame of the massage device, includes a swing adjustment unit that rotates the leg massage unit in a horizontal direction and / or a leg angle adjustment unit that rotates the leg massage unit in an up-and-down direction.

[0015] According to an embodiment of the present invention, the swing adjustment unit includes: a swing frame provided with a connection bracket, to which a leg massage unit rotation shaft is rotatably connected in an up-and-down direction; a support shaft that supports the swing frame in such a way that the swing frame can rotate in a horizontal direction with respect to the seat frame; and a swing drive unit provided with a swing drive motor that provides a driving force for rotating the swing frame in a horizontal direction.

[0016] According to an embodiment of the present invention, the support shaft may be connected in a vertical direction to a support shaft frame connected to the seat frame, and the support shaft may include a fixed wheel arranged in a horizontal direction.

[0017] According to an embodiment of the present invention, the fixed wheel and the support shaft may be connected in a non-rotatable manner, and the swing drive unit is arranged on the swing frame, and the swing frame can move and rotate under the guidance of the fixed fixed wheel by the rotation of the swing drive motor.

[0018] According to an embodiment of the present invention, the swing drive unit may include: a swing drive motor fixed to the swing frame; and a worm wheel connected to a motor shaft of the swing drive motor and meshing with an outer circumferential surface of the fixed wheel.

[0019] According to an embodiment of the present invention, the leg angle adjustment unit includes: an angle adjustment unit frame fixed to a lower side of the seat frame, a seat frame extension portion, or the swing adjustment unit; a leg rotation motor arranged in the angle adjustment unit frame and providing a driving force for rotating the leg massage unit in an up-and-down direction; and a leg support portion that contacts a back surface of the leg massage unit so that one end portion of the leg support portion is arranged on the back surface of the leg massage unit, and the leg support portion receives the driving force of the leg rotation motor through an angle adjustment rotation shaft and rotates in an up-and-down direction while rotating the leg massage unit in an up-and-down direction.

[0020] According to an embodiment of the present invention, a gearbox is fixed to the angle adjustment unit frame, and the gearbox includes: a first gear unit vertically disposed, the first gear unit being connected to the leg rotation motor and provided with a first worm; a second gear unit disposed in the front-rear direction, the second gear unit including a worm gear meshing with the first worm and a second worm coaxially connected to the worm gear; and a third gear unit disposed in the left-right direction in front of the first gear unit, the third gear unit including an output gear meshing with the second worm and coupled to the angle adjustment rotation shaft, and the leg rotation motor and the first to third gear units are surrounded by a housing to form a single component.

[0021] According to another embodiment of the present invention, a leg massage unit connecting device of a massage device connects a leg massage unit to a seat frame of the massage device in a movable manner. The leg massage unit connecting device includes: a swing frame provided with a connection bracket, a leg massage unit rotation shaft being connected to the connection bracket in a rotatable manner in the up-down direction, a support shaft supporting the swing frame in a rotatable manner relative to the seat frame in the horizontal direction, a swing adjustment unit including a swing drive unit having a swing drive motor providing a driving force for rotating the swing frame in the horizontal direction, and a leg angle adjustment unit connected to the swing adjustment unit and capable of rotating the leg massage unit in the up-down direction.

[0022] In addition, the leg angle adjustment unit may include: an angle adjustment unit frame fixed to the lower side of the swing adjustment unit, a leg rotation motor disposed in the angle adjustment unit frame and providing a driving force for rotating the leg massage unit in the up-down direction, and a leg support unit contacting the back surface of the leg massage unit so that one end portion of the leg support unit is disposed on the back surface of the leg massage unit, and the leg support unit rotates in the up-down direction by the driving force of the leg rotation motor while rotating the leg massage unit in the up-down direction.

[0023] In addition, the support shaft may be disposed in the vertical direction.

[0024] In addition, the seat frame may have a support shaft frame protruding forward and coupled to the upper and lower ends of the support shaft, and the support shaft may be coupled to the support shaft frame at a position spaced apart from the front surface of the seat frame.

[0025] In addition, the support shaft may include a fixed wheel disposed in the horizontal direction.

[0026] In addition, the fixed wheel may be fixed to the support shaft in a non-rotatable manner.

[0027] In addition, the support shaft can be fixed in a non-rotatable manner, the swing frame can include a support shaft connection portion into which the support shaft is inserted and connected to enable the swing frame to rotate relative to the support shaft, and the swing drive portion can be configured and connected to the swing frame so that the swing frame moves under the guidance of the fixed fixed wheel through the rotation of the swing drive motor.

[0028] In addition, the swing drive portion can include: the swing drive motor fixed on the swing frame, and a worm gear connected to the motor shaft of the swing drive motor and meshing with the outer peripheral surface of the fixed wheel.

[0029] In addition, the leg massage portion can include a separately formed one-side leg massage portion and the other-side leg massage portion, and the swing adjustment portion and the leg angle adjustment portion can be provided corresponding to each of the one-side leg massage portion and the other-side leg massage portion of the leg massage portion so that the one-side leg massage portion and the other-side leg massage portion can independently perform horizontal rotation and vertical rotation.

[0030] In addition, a gearbox can be fixed on the angle adjustment portion frame. A plurality of gears for transmitting the output of the leg rotation motor and a housing for accommodating the leg rotation motor and the plurality of gears are provided in the gearbox. The connecting end portion of the leg support portion can be fixed on an angle adjustment rotation shaft, and the angle adjustment rotation shaft is connected to an output gear in the gearbox and penetrates the housing and extends to the outside.

[0031] In addition, the gearbox can include: a first gear portion arranged vertically, the first gear portion is connected to the leg rotation motor and is provided with a first worm; a second gear portion arranged in the front-rear direction, the second gear portion includes a worm gear meshing with the first worm and a second worm coaxially connected to the worm gear; and a third gear portion arranged in the left-right direction in front of the first gear portion, the third gear portion includes the output gear meshing with the second worm and combined with the angle adjustment rotation shaft.

[0032] In addition, the upper and lower ends of the first housing portion of the housing surrounding the leg rotation motor and the first gear portion can be fixed on the angle adjustment portion frame, and the gearbox can be fixed on the angle adjustment portion frame so that the angle adjustment rotation shaft is supported by a fixture on the lower surface of the angle adjustment portion frame in a rotatable manner.

[0033] According to yet another embodiment of the present invention, a leg massage unit connecting device of a massage apparatus connects a leg massage unit to a seat frame of the massage apparatus in a movable manner. The leg massage unit connecting device includes a leg angle adjusting unit. The leg angle adjusting unit includes: an angle adjusting unit frame fixed to the seat frame or a seat frame extension; a leg rotation motor disposed in the angle adjusting unit frame and providing a driving force for rotating the leg massage unit in the vertical direction; and a leg support unit. A moving wheel that contacts the back surface of the leg massage unit is provided at one end of the leg support unit, and the moving wheel rotates upward in the direction of the driving force of the leg rotation motor while pushing the leg massage unit to rotate the leg massage unit.

[0034] In addition, the leg massage unit may include a first leg massage unit and a second leg massage unit. The leg angle adjusting unit is provided for an integrated leg massage unit formed by integrally combining the first leg massage unit and the second leg massage unit, or the leg angle adjusting unit is provided separately for the first leg massage unit and the second leg massage unit formed separately from each other.

[0035] In addition, a gearbox may be fixed to the angle adjusting unit frame. A plurality of gears for transmitting the output of the leg rotation motor and a housing for accommodating the leg rotation motor and the plurality of gears are provided in the gearbox. A connecting end of the leg support unit may be fixed to an angle adjusting rotation shaft, and the angle adjusting rotation shaft is connected to an output gear in the gearbox and penetrates the housing and extends to the outside.

[0036] According to yet another embodiment of the present invention, a leg massage unit connecting device of a massage apparatus is used to connect a leg massage unit to the massage apparatus. The leg massage unit connecting device includes a leg angle adjusting unit. The leg angle adjusting unit includes: an angle adjusting unit frame connected to the seat frame; a leg rotation motor disposed in the angle adjusting unit frame and providing a driving force for rotating the leg massage unit in the vertical direction; and a leg support unit that receives the driving force of the leg rotation motor to rotate in the vertical direction while rotating the leg massage unit in the vertical direction.

[0037] In addition, the leg massage unit may include a first leg massage unit and a second leg massage unit. The leg angle adjusting unit is provided for an integrated leg massage unit formed by integrally combining the first leg massage unit and the second leg massage unit, or the leg angle adjusting unit is provided separately for the first leg massage unit and the second leg massage unit formed separately from each other.

[0038] In addition, the angle adjusting unit frame may be configured in a hanging form at the front part of the seat frame.

[0039] In addition, the angle adjustment part frame may include a gearbox, in which a plurality of gears for transmitting the output of the leg rotation motor are accommodated, and an angle adjustment rotation shaft connected to the output gear in the gearbox may be connected to the leg support part.

[0040] In addition, the leg support part may include: a moving wheel that contacts the back surface of the leg massage part, and an angle adjustment bracket provided with a connection end, one side of the connection end is connected to the moving wheel and the other side is connected to the angle adjustment rotation shaft.

[0041] In addition, the gearbox may accommodate the leg rotation motor therein and is arranged in such a way that the upper end and the lower end of the gearbox are fixed to the angle adjustment part frame.

[0042] Effects of the Invention

[0043] The leg massage part connection device of the massage device according to the present invention can perform a swinging action of rotating the leg massage part horizontally to one side and the other side. The swing adjustment part is arranged in front of the seat frame to minimize interference with the main frame, and at the same time, various swinging actions can be realized, such as an action in which one leg massage part and the other leg massage part open in opposite directions, an action in which one leg massage part and the other leg massage part rotate to one side and the other side simultaneously, etc.

[0044] The leg massage part connection device of the massage device according to the present invention can provide a leg angle adjustment part that expands the angle adjustment range by lifting the leg massage part. Since the leg angle adjustment part is arranged in a form that is not configured in the main frame such as a seat frame or a base frame, it is easy to arrange related components for realizing various functions in the main frame. In addition, the leg angle adjustment part can be provided as an assembled modular component, so the assembly property of the massage device can be improved. Brief Description of the Drawings

[0045] Figure 1 is a view showing a massage device according to an embodiment of the present invention.

[0046] Figure 2 is a perspective view showing a connection device of a leg massage part of a massage device according to an embodiment of the present invention.

[0047] Figure 3 is a side view showing a connection device of a leg massage part of a massage device according to an embodiment of the present invention.

[0048] Figure 4 is a view for explaining a swing driving part of a swing adjustment part according to an embodiment of the present invention.

[0049] Figure 5 This is a perspective view of a leg angle adjustment unit according to an embodiment of the present invention.

[0050] Figure 6 This shows Figure 5 A perspective view of a part of the housing cut open in the gearbox of the leg angle adjustment unit shown.

[0051] Figure 7 This is a view showing a state in which a leg massage unit rotates upward through a leg angle adjustment unit in a massage device according to an embodiment of the present invention.

[0052] Figures 8A to 8C This is a view for explaining the operation of a leg massage unit through a leg massage unit connection device of a massage device according to an embodiment of the present invention. Detailed Description of the Invention

[0053] The above objects, features, and advantages of the present disclosure are made clearer through the following embodiments related to the drawings. The following specific structures and each functional description are only shown for explaining embodiments based on the concept of the present disclosure, and embodiments based on the concept of the present disclosure can be implemented in various ways and should not be construed as limited to the embodiments described in this specification or the application.

[0054] Based on embodiments of the concept of the present disclosure, various changes can be made and various forms can be adopted. Therefore, specific embodiments are shown in the drawings and detailed descriptions are provided in this specification or the application. However, this does not limit the embodiments of the concept of the present disclosure to a specific disclosure form, but should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0055] Although terms such as first and / or second can be used to describe various components, the components are not limited to these terms. These terms are only used to distinguish one component from another. For example, without departing from the scope of the claims of the concept of the present disclosure, the first component can be named the second component, and similarly, the second component can also be named the first component.

[0056] 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 there can also be other components between them. 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 them. Other expressions for explaining the relationship between components, such as "between ~" and "directly between ~" or "adjacent to ~" and "directly adjacent to ~", should also be interpreted in the same way.

[0057] The terms used in this specification are only used to describe specific embodiments and are not intended to limit the present disclosure. Unless otherwise clearly specified in the context, singular expressions include plural expressions. Terms such as "including" or "having" in this specification are used to specify the existence of the described features, numbers, steps, actions, components, parts, or combinations thereof, and do not preclude the existence or additional possibility of one or more other features, numbers, steps, actions, components, parts, or combinations thereof in advance.

[0058] Unless otherwise defined, all terms used herein, including technical terms or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the art to which this technology pertains. Terms defined in commonly used dictionaries shall be interpreted to have a meaning consistent with the context of the relevant technology, and shall not be interpreted as ideal or overly formal meanings unless clearly defined in this specification.

[0059] The actuator in this specification refers to a structure that can provide driving force. For example, the actuator may include, but is not limited to, a motor, a linear motor, an electric motor, a direct current (DC) motor, an alternating current (AC) motor, a linear actuator, an electric actuator, etc.

[0060] In this specification, according to one embodiment, the massage device may refer to a massage device including a body massage part and a leg massage part. Additionally, according to another embodiment, the body massage part and the leg massage part may exist as separate and independent devices (for example, a body massage device and a leg massage device), and the massage device may refer to the body massage device or the leg massage device.

[0061] Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in more detail.

[0062] Figure 1 It is a diagram showing an embodiment of the massage device of the present invention.

[0063] In one embodiment of the massage device 100 according to the present disclosure, it may include: a body massage part 1000, which forms an area for accommodating at least a part of the body of the user 10 and is used for massaging the user's body; a leg massage part 2000, which is used for massaging the user's legs; and an arm massage part 4000, which is used for massaging the user's arms.

[0064] The body massage unit 1000 can provide massage to at least a part of the user's body. The body massage unit 1000 can include: a massage module (not shown) that provides a massage function to at least a part of the user's body; an audio output module 1500 that provides audio output in any form to the user; a main frame that constitutes the frame of the body massage unit 1000; and a user input unit 1400 that receives input in any form from the user.

[0065] Each structure of the above-mentioned body massage unit 1000 is only an exemplary embodiment. In addition to including the aforementioned structures, the body massage unit 1000 can also include various structures.

[0066] In addition, as Figure 1 shown, the shape and structure of the massage device 100 are only examples. Without departing from the scope of the rights defined in the claims of the present disclosure, various forms of the massage device 100 can also be included within the scope of the present disclosure.

[0067] The body massage unit 1000 can form an accommodation space 1000a in any form for accommodating the user's body. The accommodation space 1000a of the body massage unit 1000 can be formed in a form corresponding to the shape of the user's body. As Figure 1 shown, for example, the body massage unit 1000 can be implemented in a seated type that can accommodate the whole body or a part of the user's body.

[0068] The part of the body massage unit 1000 that contacts the ground can include any material or any component for increasing friction (such as an anti-slip mat, etc.), and can include wheels for enhancing the mobility of the massage device 100.

[0069] At least a part of the body massage unit 1000 can slide. For example, when the body massage unit 1000 starts to massage, at least a part of the body massage unit 1000 can slide forward. In addition, the body massage unit 1000 can tilt backward. As a result, the body massage unit 1000 can provide massage in a state of tilting backward.

[0070] According to an embodiment of the present disclosure, the massage device 100 can include at least one airbag. The airbag can be located at the user's shoulder part, pelvis part, arm massage unit 4000, leg massage unit 2000, etc., but is not limited thereto, and can be arranged in various parts of the massage device 100.

[0071] The massage device 100 can include an air supply unit that can supply air to the airbag to inflate the airbag. The air supply unit can be located inside the body massage unit 1000, can be located in the leg massage unit 2000. In addition, the air supply unit can be located outside the massage device 100.

[0072] The arm massage unit 4000 can be arranged on both sides of the body massage unit 1000. A U-shaped groove-shaped arm receiving groove 4100 is formed in the arm massage unit 4000, so that the user can comfortably place the arms in a sitting state to receive massage. Air bags can be arranged on the upper side and the lower side of the arm receiving groove 4100, so as to apply pressure to the arm part of the user downward and / or upward for massage.

[0073] The leg massage unit 2000 can provide leg massage to the user. For example, the leg massage unit 2000 can include a calf massage unit for massaging the calf of the user and / or a foot massage unit for massaging the foot of the user, etc.

[0074] The leg massage unit 2000 can be adjusted in length according to the body characteristics of the user. For example, when a tall user uses the massage device 100, since the length of the calf is long, the length of the leg massage unit 2000 needs to be lengthened. In addition, when a short user uses the massage device 100, since the length of the calf is short, the leg massage unit 2000 needs to be shortened. Therefore, the leg massage unit 2000 can provide leg massage customized for the user's height.

[0075] The leg massage unit 2000 includes a one-side leg massage unit 2001 for accommodating one leg of the user and a the-other-side leg massage unit 2002 for accommodating the other leg of the user. According to an embodiment of the present disclosure, the one-side leg massage unit 2001 and the the-other-side leg massage unit 2002 can be independently formed and respectively coupled to the main frame, and can be independently driven. The one-side leg massage unit 2001 and the the-other-side leg massage unit 2002 can move independently and achieve the movement of the user like walking, and perform massage. Hereinafter, the leg massage unit connection device for connecting the leg massage unit 2000 and the main frame will be described in detail.

[0076] The massage module can be arranged inside the body massage unit 1000 to provide any form of mechanical stimulation to the user accommodated in the body massage unit 1000. The massage module can move along the main frame arranged inside the body massage unit 1000.

[0077] For example, a rack gear can be arranged on the main frame of the body massage unit 1000, and the massage module can move along the rack gear while providing mechanical stimulation to various parts of the user's body. The massage module can include a ball massage unit or a roller massage unit, but is not limited thereto.

[0078] The main frame is used to form the frame that constitutes the interior of the body massage unit 1000 and can be implemented by a metal material, a plastic material, or the like. For example, the main frame can be implemented by iron, an alloy, steel, etc., but is not limited thereto and can be implemented by various strong materials.

[0079] According to an embodiment of the present disclosure, the massage device 100 may include an audio output module 1500. The audio output module 1500 may be disposed at various positions. For example, the audio output module 1500 may include a plurality of output units, such as an upper audio output unit disposed at the upper end of the seat portion in contact with the user, a front audio output unit attached to the front end of the arm massage unit 4000 on the left and right sides of the seat portion, and / or a rear audio output unit attached to the rear end of the arm massage unit 4000, but is not limited thereto. In this case, the audio output module 1500 may provide stereo sound such as 5.1 channels, but is not limited thereto.

[0080] The massage device 100 includes a control unit (not shown) for controlling the operation of the massage device 100.

[0081] According to an embodiment of the present disclosure, the user can use the massage device control device CD to control the massage device 100. The massage device control device CD can be connected to the control unit of the massage device 100 through wired communication and / or wireless communication.

[0082] The massage device control device CD may include a remote controller, a cellular phone, a personal digital assistant (PDA), etc., but is not limited thereto and may include various electronic devices that can be connected to the massage device 100 through wired communication or wireless communication.

[0083] Referring to Figure 2 the main frame of the massage device according to an embodiment of the present invention,

[0084] the main frame 1100 may include a body frame 1200 and a base frame 1300.

[0085] A rack (not shown) for the movement of the massage module may be provided on the back seat frame 1210. The rack may be formed across the back seat frame 1210 and the seat frame 1250.

[0086] According to an embodiment of the present disclosure, the back seat frame 1210 and the seat frame 1250 may form separate frames and may be movably coupled to each other.

[0087] The base frame 1300 is disposed on the ground to support the main frame 1200. The base frame 1300 may be formed such that at least a part thereof is slidable relative to the ground. Accordingly, the main frame 1200 may move in the front-rear direction.

[0088] In addition, the seat frame 1250 may be rotatably connected to the base frame 1300.

[0089] The massage device 100 of the present invention may include a plurality of actuators for operating the back seat frame 1210, the seat frame 1250, and the base frame 1300. Accordingly, the massage device 100 may change its posture between a seating mode and a reclining mode while adjusting the back angle and the seat angle, and may slide in the front-rear direction.

[0090] According to an embodiment of the present disclosure, the leg massage unit 2000 may be coupled to the main frame 1100 such that one side leg massage unit 2001 and the other side leg massage unit 2002 can move independently. To this end, a connecting device for the one side leg massage unit 2001 and a connecting device for the other side leg massage unit 2002 may be provided separately. However, as another embodiment, the one side leg massage unit 2001 and the other side leg massage unit 2002 may be integrally connected to form an integrated leg massage unit 2000. The integrated leg massage unit 2000 may be connected to the main frame 1100 in a manner capable of moving as a whole.

[0091] Hereinafter, the leg massage unit 2000 may be a term referring to each of the one side leg massage unit, the other side leg massage unit, and the both side leg massage units, or may be an integrated leg massage unit in which the one side leg massage unit and the other side leg massage unit are integrally connected. Unless the leg massage unit 2000 needs to be distinguished as the one side leg massage unit and the other side leg massage unit, it is referred to as the leg massage unit 2000.

[0092] Figure 2 is a perspective view showing a connecting device of a leg massage unit of a massage device according to an embodiment of the present invention, Figure 3 is a side view showing a connecting device of a leg massage unit of a massage device according to an embodiment of the present invention, Figure 4 is a view for explaining a swing driving unit of a swing adjusting unit according to an embodiment of the present invention.

[0093] A leg massage unit connecting device 3000 of a massage device 100 according to an embodiment of the present invention is provided for movably connecting the leg massage unit 2000 to the seat frame 1250 of the main frame 1100.

[0094] The leg massage unit connecting device 3000 of the massage device according to the present invention may include at least one of a swing adjustment unit 3100 and a leg angle adjustment unit 3500.

[0095] The swing adjustment unit 3100 connects the leg massage unit 2000 to the seat frame 1250 so that the leg massage unit 2000 can rotate in the horizontal direction. In this specification, the movement of the leg massage unit 2000 rotating in the horizontal direction is referred to as a swing motion.

[0096] Refer to Figure 2 , the swing adjustment unit 3100 is provided in a manner corresponding to one side leg massage unit 2001 and the other side leg massage unit 2002 respectively. That is, the swing adjustment unit 3100 may include a swing adjustment unit for the one side leg massage unit 2001 and a swing adjustment unit for the other side leg massage unit 2002. Thus, the one side leg massage unit 2001 and the other side leg massage unit 2002 can rotate in the horizontal direction independently, that is, can perform a swing motion.

[0097] According to an embodiment of the present disclosure, the swing adjustment unit 3100 includes at least a part of a support shaft 3110, a fixed wheel 3120, a swing frame 3200, and a swing driving unit 3300.

[0098] The support shaft 3110 is arranged in the vertical direction and supported on the seat frame 1250. In the present disclosure, the vertical direction refers to the direction parallel to the Z-axis direction based on the coordinate system shown in Figure 2 , and corresponds to the up and down direction in the massage device. In addition, the horizontal direction refers to the direction parallel to the XY plane in the coordinate system, the front and back direction of the massage device refers to the direction parallel to the X-axis, and the left and right direction of the massage device can be defined as the direction parallel to the Y-axis.

[0099] According to an embodiment of the present disclosure, the seat frame 1250 includes a support shaft frame 1260 protruding forward. The support shaft frame 1260 extends as a pair up and down, and the upper and lower ends of the support shaft 3110 are combined therebetween and extend vertically. When the swing frame 3200 rotates in the horizontal direction with the support shaft 3110 as a reference by combining the support shaft 3110 at a position spaced apart from the front surface of the seat frame 1250 to the support shaft frame 1260, interference with the seat frame 1250 can be prevented while expanding the left and right swing rotation range.

[0100] As clearly visible in the enlarged view A of Figure 3 , the fixed wheel 3120 is combined with the support shaft 3110 in a form arranged in the horizontal direction. That is, the fixed wheel 3120, based on the coordinate system shown in Figure 2 , has a radial direction extending parallel to the XY plane and is cross-arranged with respect to the support shaft.

[0101] The fixed wheel 3120 can be integrally fixed and coupled to the support shaft 3110 to prevent relative rotation between the support shaft 3110 and the fixed wheel 3120.

[0102] The fixed wheel 3120 can be formed of a gear having gear teeth formed on its outer circumferential surface.

[0103] The swing frame 3200 is coupled and supported to the support shaft 3110 so as to be rotatable in the horizontal direction relative to the seat frame.

[0104] The swing frame 3200 includes a support shaft connection portion 3210 connected to the support shaft 3110. The support shaft connection portion 3210 is formed as a hole into which the support shaft 3110 is inserted.

[0105] According to an embodiment of the present disclosure, the support shaft 3110 can be non-rotatably fixed to the support shaft frame 1260. The swing frame 3200 can rotate with reference to the support shaft connection portion 3210 connected to the fixed support shaft 3110. At this time, a bearing 3212 can be disposed in the hole forming the support shaft connection portion 3210.

[0106] The swing frame 3200 is provided with connection brackets 3220, and the leg massage unit 2000 is connected to the connection brackets 3220 at positions opposite to the support shaft connection portion 3210. Two connection brackets 3220 are provided in pairs on the front surface 3202 of the swing frame 3200 at intervals from each other, and the leg massage unit rotation shafts 2010 protruding from the leg massage unit 2000 to both sides are inserted and supported in the connection brackets 3220 in a rotatable manner. The connection brackets 3220 are formed such that their upper surfaces are detachable from their lower surfaces to facilitate the assembly of the leg massage unit 2000. When the vertical rotation of the leg massage unit 2000 is adjusted by the leg angle adjustment unit 3500, the leg massage unit rotation shafts 2010 rotate relative to the connection brackets 3220 while realizing the vertical rotation of the leg massage unit 2000.

[0107] The swing driving unit 3300 provides a driving force to rotate the leg massage unit 2000 in the horizontal direction with reference to the support shaft 3110. Figure 4 The state in which the upper surface of the swing frame 3200 is removed is shown to illustrate the configuration of the swing driving unit 3300.

[0108] According to an embodiment of the present disclosure, the swing driving unit 3300 is disposed in the swing frame 3200. The swing driving unit 3300 includes a swing driving motor 3310 and a worm gear 3320.

[0109] The swing drive motor 3310 provides a driving force so that the swing frame 3200 can rotate horizontally relative to the support shaft 3110 in a state of supporting the leg massage unit 2000.

[0110] The swing drive unit 3300 is disposed in a space portion 3230 formed inside the swing frame 3200. The swing frame 3200 includes the space portion 3230 between the main bodies formed by the front surface 3202, the upper surface, and the lower surface 3204.

[0111] The swing drive motor 3310 is disposed on the lower surface 3204 of the swing frame 3200. One side of the swing drive motor 3310 is fixed to the motor fixing jig 3235. The worm gear 3320 is connected to the motor shaft of the swing drive motor 3310. A worm shaft 3311 connected to the motor shaft is provided on the worm gear 3320, and the other side is rotatably fixed to the shaft fixing jig 3236.

[0112] The worm gear 3320 is connected to guide the movement of the swing frame 3200 relative to the fixed wheel 3120 when the swing drive motor 3310 rotates.

[0113] The worm gear 3320 and the fixed wheel 3120 are arranged in a crossed manner so that the worm gear 3320 is configured to mesh with the gear formed on the outer peripheral surface of the fixed wheel 3120.

[0114] The support shaft 3110 and the fixed wheel 3120 are arranged in a fixed state. Therefore, when the worm gear 3320 rotates by the swing drive motor 3310, the swing frame 3200 combined with the swing drive unit 3300 including the worm gear 3320 rotates horizontally under the guidance of the fixed wheel 3120.

[0115] Since the rotation of the swing drive motor 3310 is converted into the rotation of the swing frame 3200 relative to the support shaft 3110 by the swing adjustment unit 3100, the leg massage unit 2000 combined with the swing frame 3200 can rotate horizontally in the left - right direction.

[0116] The rotation of the swing drive motor 3310 is performed by the control unit, and the forward and reverse rotations of the swing drive motor 3310 are converted into the left - right rotation of the leg massage unit 2000. In order to accurately control the rotation of the swing drive motor 3310 and to sense the rotation of the swing drive motor 3310, sensors such as an encoder can be provided.

[0117] According to an embodiment of the present disclosure, when the swing driving unit 3300 is disposed in the swing frame 3200, it is relatively beneficial for the spatial application of the seat frame 1250 on which various components are disposed. In addition, since the swing driving unit 3300 is integrally combined with the swing frame 3200 and modularized, that is, an assembled unit component is formed, the assembly process can be simplified and easily completed when assembling the massage device.

[0118] The swing adjustment unit of the leg massage unit connection device according to the present invention enables the massage device to provide various stretching modes and the like by implementing various movements such as the user's legs spreading apart from each other, rotating together in one direction, and rotating together in the other direction.

[0119] Figure 5 It is a perspective view of a leg angle adjustment unit according to an embodiment of the present invention. Figure 6 It shows Figure 5 A perspective view of a part of the housing cut open in the gearbox of the leg angle adjustment unit shown.

[0120] Referring to Figure 2 、 Figure 3 、 Figure 5 and Figure 6 According to an embodiment of the present disclosure, the leg angle adjustment unit 3500 is provided to rotate the leg massage unit 2000 in the vertical direction.

[0121] The leg angle adjustment unit 3500 includes at least a part of an angle adjustment unit frame 3600, a leg rotation motor 3732, and a leg support unit 3800. The leg rotation motor 3732 can be provided in the form of a gearbox 3700.

[0122] According to an embodiment of the present disclosure, the angle adjustment unit frame 3600 can be fixed to the swing frame 3200 of the swing adjustment unit 3100. The angle adjustment unit frame 3600 can be arranged in a state of being fixed and suspended below the lower surface 3204 of the swing frame 3200.

[0123] The angle adjustment unit frame 3600 can be formed of a plate and / or a frame rod, etc., and a gearbox configuration space 3670 can be formed inside it. For example, the angle adjustment unit frame 3600 can include a plate forming an upper surface 3612 and a lower surface 3614 and vertical frame rods 3616 disposed at the corners between the upper surface 3612 and the lower surface 3614. The space between the upper surface 3612 and the lower surface 3614 forms the gearbox configuration space 3670. However, the present invention is not limited to the structure of the angle adjustment unit frame.

[0124] A leg rotation motor 3732 that provides a driving force for rotating the leg massage unit 2000 in the vertical direction is disposed in the angle adjustment unit frame 3600.

[0125] According to an embodiment of the present disclosure, the leg rotation motor 3732 is modularized into a gearbox 3700 and configured in the angle adjustment unit frame 3600 in a modular form.

[0126] The gearbox 3700 includes a housing 3710, a leg rotation motor 3732, and a gear unit. The gear unit is provided with a plurality of gears that drive the angle adjustment rotation shaft 3760 by reducing the rotation of the leg rotation motor 3732.

[0127] The housing 3710 houses the leg rotation motor 3732, a first gear unit 3730, a second gear unit 3740, and a third gear unit 3750 therein.

[0128] The first gear unit 3730 includes a first worm 3734 connected to the motor shaft of the leg rotation motor 3732. The first gear unit 3730 is configured to extend upward of the leg rotation motor 3732.

[0129] A portion of the housing 3710 that houses the leg rotation motor 3732 and the first gear unit 3730 forms a first housing portion 3713.

[0130] The second gear unit 3740 includes a worm wheel 3742 meshing with the first worm 3734 and a second worm 3744 coaxially coupled to the worm wheel 3742. In the gearbox configuration space 3670, the second gear unit 3740 is configured to cross the first gear unit 3730 and extend in the front-rear direction.

[0131] The worm wheel 3742 and the second worm 3744 form a reduction ratio to reduce the rotational speed transmitted to the worm wheel 3742 and output it to the output gear 3752.

[0132] A portion of the housing 3710 that houses the second gear unit 3740 forms a second housing portion 3714.

[0133] The third gear unit 3750 includes an output gear 3752 meshing with the second worm 3744. The output gear 3752 is connected to the angle adjustment rotation shaft 3760. The third gear unit 3750 is disposed in front of the first gear unit 3730 and the leg rotation motor 3732 in the gearbox configuration space 3670 and is configured to extend in the left-right direction.

[0134] A portion of the housing 3710 that houses the third gear unit 3750 forms a third housing portion 3715. The angle adjustment rotation shaft 3760 penetrates the housing 3710, that is, penetrates the third housing portion 3715 and extends to the outside.

[0135] The gearbox 3700 can convert the rotation of the leg rotation motor 3732 into high torque required for the rotation of the leg massage unit 2000 and output it.

[0136] Within the gearbox configuration space 3670, the upper and lower ends of the first housing portion 3713 are fixed to the angle adjustment portion frame 3600. That is, the upper end of the first housing portion 3713 is fixed to the upper surface 3612 of the angle adjustment portion frame, and the lower end is fixed to the lower surface 3614 of the angle adjustment portion frame. In addition, on the lower surface 3614 of the angle adjustment portion frame 3600, a pair of jigs 3620 are fixed to support both ends of the angle adjustment rotating shaft 3760 in a rotatable manner. As described above, the gearbox 3700 can be easily assembled with the angle adjustment portion frame 3600.

[0137] The gearbox 3700 according to an embodiment of the present disclosure can compactly arrange the leg rotation motor and the gears within the gearbox configuration space 3670 in the angle adjustment portion frame 3600. The leg angle adjustment portion 3500 can be modularized and assembled into the massage device as a single component assembled in a modular form.

[0138] The rotation of the leg rotation motor 3732 is controlled by the control unit, and the forward and reverse rotations of the leg rotation motor 3732 cause the up and down rotation of the leg support portion 3800. In order to accurately control the rotation of the leg rotation motor 3732 and to sense the rotation of the leg rotation motor 3732, sensors such as an encoder can be provided. Thereby, the angle of the leg massage portion 2000 can be adjusted.

[0139] The leg support portion 3800 includes an angle adjustment bracket 3810 provided with a connection end fixed to the angle adjustment rotating shaft 3760 and a moving wheel 3820.

[0140] One side of the angle adjustment bracket 3810 branches out to both sides to form both sides fixed to the connection end of the angle adjustment rotating shaft 3760. The other end of the angle adjustment bracket 3810 is connected to a moving wheel 3820 that contacts the back surface of the leg massage portion 2000.

[0141] When the leg support portion 3800 rotates upward by the rotation of the leg rotation motor 3732, the leg support portion 3800 rotates the leg massage portion 2000 upward around the leg massage rotation axis by pushing and lifting the back surface of the leg massage portion 2000 upward. When the leg rotation motor 3732 rotates in the opposite direction to rotate the leg support portion 3800 downward, the leg massage portion 2000 rotates downward by the load while being supported by the leg support portion 3800.

[0142] Figure 7 The state in which the leg massage portion rotates upward (i.e., is lifted) by the leg angle adjustment portion in a massage device according to an embodiment of the present invention is shown.

[0143] According to an embodiment of the present invention, the leg angle adjustment unit 3500 may be configured as a modular leg angle adjustment unit 3500 that is supported in the form of the main frame 1100 (for example, the seat frame 1250). The mechanical connection of the leg angle adjustment unit 3500 can be completed only through the assembly process of fixing the angle adjustment unit frame 3600 in front of the seat frame 1250.

[0144] When the rotation angle of the leg massage unit 2000 is adjusted in the vertical direction by rotating the leg support unit 3800, interference with other components provided in the seat frame 1250 and / or the base frame 1300 does not occur or is minimized. Therefore, as Figure 7 shown, the leg massage unit 2000 can have an increased angle adjustment range.

[0145] In addition, since the angular velocity at which the leg massage unit 2000 can be moved with the output of the leg rotation motor 3732 is greater than that of the actuator, the movement of the leg massage unit 2000 of the massage device can be controlled more quickly.

[0146] In a known massage device, a telescopic actuator is provided in the base frame or the seat frame, and the leg massage unit 2000 is rotated by the telescopic movement of the actuator to perform the angle adjustment of the leg massage unit. In order to increase the rotation angle of the leg massage unit 2000, an actuator with a long telescopic length needs to be configured, and an actuator for preventing interference with other components in the base frame or the seat frame needs to be configured. Due to the spatial limitation for setting the actuator and the interference between the actuator and the seat frame and / or the base frame, there are limitations in increasing the rotation angle of the leg massage unit. For example, in a known configuration with an elongation method of the actuator, it is not easy to rotate the leg massage unit 2000 upward to the Figure 7 extent shown.

[0147] On the other hand, in recent years, massage devices are evolving in a way that incorporates various functions, so the space for setting components that perform various functions in the base frame or the seat frame has become insufficient. However, as in the present invention, when the leg angle adjustment unit is disposed outside the main frame, space available for assembling other components can be ensured in the base frame or the seat frame.

[0148] The connection device of the leg massage unit according to another embodiment of the present disclosure may be provided with the leg angle adjustment unit 3500 without providing the swing adjustment unit 3100.

[0149] The angle adjustment unit frame 3600 can be directly connected to the seat frame 1250 or fixed to a seat frame extension extending from the seat frame 1250. For example, the swing adjustment unit described in connection with an embodiment of the present invention can correspond to the seat frame extension.

[0150] According to another embodiment of the present disclosure, a leg angle adjustment unit 3500 can be provided for an integrated leg massage unit 2000 formed by integrally combining a one - side leg massage unit 2001 and a the other - side leg massage unit 2002. The leg angle adjustment unit 3500 is provided for the integrated leg massage unit 2000, and the leg support unit 3800 pushes and lifts the back surface of the integrated leg massage unit 2000 so that the integrated leg massage unit 2000 can be rotated upward.

[0151] In addition, a leg angle adjustment unit 3500 can be provided for a leg massage unit 2000 that operates separately for the one - side leg massage unit 2001 and the other - side leg massage unit 2002. In this case, a leg angle adjustment unit 3500 for the one - side leg massage unit 2001 and a leg angle adjustment unit 3500 for the other - side leg massage unit 2002 are provided, and the up - and - down rotation angles of the one - side leg massage unit 2001 and the other - side leg massage unit 2002 can be adjusted separately.

[0152] Figures 8A to 8C It is a diagram for explaining the operation of the leg massage unit of the leg massage unit connection device of the massage device according to the present invention.

[0153] Figure 8A It shows the initial position of the leg massage unit 2000 in the massage device. The one - side leg massage unit 2001 and the other - side leg massage unit 2002 are connected in a manner that operates separately, and a leg massage unit connection device 3000 is provided, which is provided with a swing adjustment unit 3100 and a leg angle adjustment unit 3500 corresponding to the one - side leg massage unit 2001 and the other - side leg massage unit 2002, respectively.

[0154] Figure 8B It shows that the one - side leg massage unit 2001 and the other - side leg massage unit 2002 adjust the rotation angle upward from the initial position, that is, adjust to a lifted state, and the one - side leg massage unit 2001 and the other - side leg massage unit 2002 swing - rotate in an outward direction away from each other. This movement of the one - side leg massage unit 2001 and the other - side leg massage unit 2002 realizes the movement of spreading the two legs while lifting the user's legs. At this time, the angles of upward rotation and outward rotation of the one - side leg massage unit 2001 and the other - side leg massage unit 2002 can be different.

[0155] Figure 8CIt shows that the leg massage part 2001 on one side and the leg massage part 2002 on the other side swing and rotate in one direction. The leg massage part 2001 on one side and the leg massage part 2002 on the other side can achieve a leg swinging action mode of repeatedly moving in one direction and the other direction. At this time, the leg massage part 2001 on one side and the leg massage part 2002 on the other side can perform a swinging action in a state of being lifted upward.

[0156] As Figures 8A to 8C shown, in the massage device according to the present invention, the leg massage part can achieve various movements, so that the massage device can provide various stretching modes and massage modes.

Claims

1. A connecting device for the leg massage part of a massage device, which connects the leg massage part to the seat frame of the massage device in a movable manner, characterized in that, The connecting device for the leg massage part includes: A swing frame provided with a connecting bracket, and a leg massage part rotating shaft is connected to the connecting bracket in a manner that can rotate in the up and down direction. A support shaft that supports the swing frame in a manner that enables the swing frame to rotate horizontally relative to the seat frame. A swing adjustment part including a swing drive part, the swing drive part having a swing drive motor that provides a driving force for rotating the swing frame in the horizontal direction, and A leg angle adjustment part that is connected to the swing adjustment part and can rotate the leg massage part in the up and down direction.

2. The connecting device for the leg massage part of the massage device according to claim 1, characterized in that, The leg angle adjustment part includes: An angle adjustment part frame fixed to the lower side of the swing adjustment part. A leg rotation motor arranged in the angle adjustment part frame and providing a driving force for rotating the leg massage part in the up and down direction, and A leg support part that contacts the back surface of the leg massage part so that one end of the leg support part is arranged on the back surface of the leg massage part, and the leg support part rotates in the up and down direction by the driving force of the leg rotation motor while rotating the leg massage part in the up and down direction.

3. The connecting device for the leg massage part of the massage device according to claim 1, characterized in that, The support shaft is arranged in the vertical direction.

4. The connecting device for the leg massage part of the massage device according to claim 3, characterized in that, The seat frame has a support shaft frame that protrudes forward and is combined with the upper and lower ends of the support shaft. The support shaft is combined with the support shaft frame at a position spaced apart from the front surface of the seat frame.

5. The connecting device for the leg massage part of the massage device according to claim 3, characterized in that, The support shaft includes a fixed wheel arranged in the horizontal direction.

6. The connecting device for the leg massage part of the massage device according to claim 5, characterized in that, The fixed wheel is fixed to the support shaft in a non-rotatable manner.

7. The connecting device for the leg massage part of the massage device according to claim 6, characterized in that, The support shaft is fixed in a non-rotatable manner. The swing frame includes a support shaft connecting part, the support shaft connecting part is inserted with the support shaft and is connected so that the swing frame rotates relative to the support shaft. The swing drive part is arranged and connected to the swing frame so that the swing frame moves under the guidance of the fixed fixed wheel through the rotation of the swing drive motor.

8. The connecting device for the leg massage part of the massage device according to claim 7, characterized in that, The swing drive part includes: The swing drive motor fixed on the swing frame, and A worm gear connected to the motor shaft of the swing drive motor and meshing with the outer peripheral surface of the fixed wheel.

9. The connecting device for the leg massage part of the massage device according to claim 1, characterized in that, The leg massage part includes a separately formed one-side leg massage part and the other-side leg massage part. The swing adjustment part and the leg angle adjustment part are arranged corresponding to each of the one-side leg massage part and the other-side leg massage part of the leg massage part, so that the one-side leg massage part and the other-side leg massage part can independently perform horizontal rotation and vertical rotation.

10. The leg massage part connection device of the massage device according to claim 2, characterized in that A gear box is fixed on the angle adjustment part frame, and a plurality of gears for transmitting the output of the leg rotation motor and a housing for accommodating the leg rotation motor and the plurality of gears are arranged in the gear box. The connection end of the leg support part is fixed on the angle adjustment rotation shaft, and the angle adjustment rotation shaft is connected to the output gear in the gear box and penetrates the housing and extends to the outside.

11. The leg massage part connection device of the massage device according to claim 10, characterized in that The gear box includes: A first gear part arranged vertically, the first gear part is connected to the leg rotation motor and is provided with a first worm. A second gear part arranged in the front-rear direction, the second gear part includes a worm gear meshing with the first worm and a second worm coaxially connected to the worm gear, and A third gear part arranged in the left-right direction in front of the first gear part, the third gear part includes the output gear meshing with the second worm and combined with the angle adjustment rotation shaft.

12. The leg massage part connection device of the massage device according to claim 11, characterized in that The upper and lower ends of the first housing part of the housing surrounding the leg rotation motor and the first gear part are fixed on the angle adjustment part frame. The gear box can be fixed on the angle adjustment part frame, so that the angle adjustment rotation shaft is supported by a fixture on the lower surface of the angle adjustment part frame in a rotatable manner.

13. A leg massage part connection device of a massage device, which movably connects a leg massage part to a seat frame of the massage device, characterized in that The leg massage part connection device includes a leg angle adjustment part; The leg angle adjustment part includes: An angle adjustment part frame fixed on the seat frame or a seat frame extension part. A leg rotation motor arranged on the angle adjustment part frame and providing a driving force for rotating the leg massage part in the vertical direction, and A leg support part, a moving wheel in contact with the back surface of the leg massage part is arranged at one end of the leg support part, and the moving wheel rotates upward by the driving force of the leg rotation motor while pushing the leg massage part to rotate the leg massage part.

14. The leg massage part connection device of the massage device according to claim 13, characterized in that The leg massage part includes a one-side leg massage part and a the other-side leg massage part. The leg angle adjustment part is provided for the integrated leg massage part formed by integrally combining the leg massage part on one side and the leg massage part on the other side, or the leg angle adjustment part is respectively provided for the leg massage part on one side and the leg massage part on the other side formed separately from each other.

15. The leg massage part connection device of the massage device according to claim 14, characterized in that A gearbox is fixed on the angle adjustment part frame, and a plurality of gears for transmitting the output of the leg rotation motor and a housing for accommodating the leg rotation motor and the plurality of gears are provided in the gearbox. The connection end of the leg support part is fixed on the angle adjustment rotation shaft, and the angle adjustment rotation shaft is connected to the output gear in the gearbox and penetrates through the housing and extends to the outside.

16. A leg massage part connection device of a massage device for connecting a leg massage part to the massage device, characterized in that The leg massage part connection device includes a leg angle adjustment part; The leg angle adjustment part includes: An angle adjustment part frame connected to the seat frame, A leg rotation motor disposed on the angle adjustment part frame and providing a driving force for rotating the leg massage part in the up and down directions, and A leg support part that receives the driving force of the leg rotation motor to rotate in the up and down directions while rotating the leg massage part in the up and down directions.

17. The leg massage part connection device of the massage device according to claim 16, characterized in that The leg massage part includes a leg massage part on one side and a leg massage part on the other side, The leg angle adjustment part is provided for the integrated leg massage part formed by integrally combining the leg massage part on one side and the leg massage part on the other side, or the leg angle adjustment part is respectively provided for the leg massage part on one side and the leg massage part on the other side formed separately from each other.

18. The leg massage part connection device of the massage device according to claim 16, characterized in that The angle adjustment part frame is configured in a hanging form at the front part of the seat frame.

19. The leg massage part connection device of the massage device according to any one of claims 16 to 18, characterized in that The angle adjustment part frame includes a gearbox, and a plurality of gears for transmitting the output of the leg rotation motor are accommodated in the gearbox. An angle adjustment rotation shaft connected to the output gear in the gearbox is connected to the leg support part.

20. The leg massage part connection device of the massage device according to claim 19, characterized in that The leg support part includes: A moving wheel that contacts the back surface of the leg massage part, and An angle adjustment bracket provided with a connection end, one side of the connection end is connected to the moving wheel and the other side is connected to the angle adjustment rotation shaft.

21. The leg massage part connection device of the massage device according to claim 19, characterized in that The gearbox accommodates the leg rotation motor inside, and is arranged in such a way that the upper end and the lower end of the gearbox are fixed to the angle adjustment part frame.

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