Massage chair and hidden structure of leg massager thereof

Abstract

This invention discloses a massage chair and its concealed leg massager structure, including a seat frame, a leg massager, and a drive component. The seat frame contains a first slide and a second slide. There are two first slides, symmetrically arranged on the left and right sides of the seat frame, with the first slides angled. Each of the two first slides has a slider, and both sliders are hinged to the upper end of the leg massager. The second slide is located between the two first slides and extends in a front-rear direction. A drive rod is slidably installed within the second slide, with its front end hinged to the lower end of the leg massager. The drive component can drive the drive rod to move back and forth along the second slide. This arrangement makes the movement of the leg massager more stable; furthermore, during the movement of the leg massager, there are support points on both the upper and lower sides for driving and support, thus improving the movement and support effect of the leg massager.

Description

Technical Field

[0001] This invention relates to the field of massage chairs, and more particularly to a massage chair and a concealed structure for its leg massager. Background Technology

[0002] Currently, massage chairs occupy a lot of space due to the inflexible movement of the leg massager and backrest, resulting in generally low utilization rates.

[0003] Patent document CN203776457U discloses a rotatable shoulder-rest lounge chair, including a seat cushion frame, an electric push rod 51, a guide rail, and a backrest frame. The chair is characterized by: the seat cushion frame having an electric push rod 51, a guide rail, and a shoulder rest rod; the push rod end of the electric push rod 51 is connected to the backrest frame; the lower ends of both sides of the backrest frame are mounted on the guide rail; and each lower end of the backrest frame has one end of a backrest bottom push rod rotatably fixed to it; the other end of the backrest bottom push rod is rotatably mounted on a seat back push rod; one end of the seat back push rod is rotatably connected to one end of a connecting rod positioning component; the other end of the seat back push rod is rotatably connected to one end of a connecting rod; and the other end of the connecting rod rotates... Connected to the calf push rod, one end of the calf push rod is rotatably connected to the calf push frame, and the other end of the calf push rod is rotatably connected to the other end of the connecting rod positioning component. The connecting rod positioning component is fixed to the seat frame rod. The backrest frame is equipped with a shoulder clamping rotating component that is rotatably connected to the shoulder clamping fixing plate at angle D. The shoulder backrest rod is equipped with a shoulder clamping pushing component that is rotatably connected to the shoulder clamping fixing plate at angle E. The calf assembly is fixed on the calf push frame. Calf slide rods are provided on both sides of the calf push frame. The calf slide rods pass through the upper and lower horizontal bars of the calf push frame. A compression spring and a spring limiting sleeve are provided on the calf slide rod between the upper and lower horizontal bars of the calf push frame. The ground end of the calf slide rod is equipped with a foot wheel.

[0004] The existing technology has the following problems: 1. The planar linkage mechanism is located on both sides of the backrest frame, which will increase the size of the chair; 2. The seat cushion frame is only hinged to the upper part of the calf massager through the linkage mechanism. As the calf massager extends out of the seat cushion frame, the friction between the calf massager and the bottom surface will affect the angle of the calf massager. Summary of the Invention

[0005] To address the problem of the inability to determine the angle of leg massagers in existing technologies, the present invention aims to provide a massage chair and a hidden structure for its leg massager, making the massage chair more compact, the process of hiding and extending more stable, and the angle of the extended leg massager more in line with the design.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a hidden structure for a leg massager, comprising a seat frame, a leg massager, and a drive component, wherein a first slide rail and a second slide rail are installed inside the seat frame; There are two first slides, which are symmetrically arranged on the left and right sides of the seat cushion frame. The first slides are inclined, and each of the two first slides is equipped with a slider. Both sliders are hinged to the upper end of the leg massager. The second slide is located between the two first slides and extends in the front-to-back direction. A drive rod is slidably installed inside the second slide. The front end of the drive rod is hinged to the lower end of the leg massager. The drive component can drive the drive rod to move back and forth on the second slide. When the leg massager is retracted into the seat cushion: the drive unit pulls the drive rod to move backward along the second slide, the drive rod pulls the leg massager to move backward, the upper end of the leg massager drives the slider to move backward, the slider moves backward and downward along the first slide, the slider drives the upper end of the leg massager to move backward and downward, so that the leg massager gradually lies down and is retracted into the seat cushion. When the leg massager is extended from the seat cushion: the drive unit pushes the drive rod forward along the second slide, the drive rod pushes the lower end of the leg massager forward, the leg massager pulls the slider forward along the first slide, the slider slides along the first slide and gradually moves upward, the slider drives the upper end of the leg massager to gradually move upward, thereby causing the leg massager to extend from the seat cushion and gradually stand up.

[0007] Preferably, the concealed structure also includes a first link and a second link, one end of the first link is hinged to the seat frame, the other end of the first link is hinged to one end of the second link, and the other end of the second link is hinged to the drive rod.

[0008] Preferably, the rear end of the leg massager is provided with a clearance groove; when the leg massager is retracted into the seat frame, the first connecting rod, the second connecting rod and the drive rod are folded, and both the drive rod and the second connecting rod can extend into the clearance groove.

[0009] Preferably, a third link is also included, one end of which is connected to the first link, and the other end of which is connected to the drive component.

[0010] Preferably, the upper end of the rear side of the leg massager is fixed with two symmetrically arranged brackets, and the two brackets are respectively hinged to two sliders.

[0011] Preferably, the lower end of the rear side of the leg massager is fixed with two symmetrically arranged first rollers, and the drive rod is hinged to the lower end of the leg massager through a fourth hinge shaft. The fourth hinge shaft is located between the two first rollers and is parallel to the first rollers.

[0012] Preferably, a proximity switch is installed at the end of the first slide rail.

[0013] Preferably, the drive component includes a cylinder mounted on the seat frame for driving the drive rod to slide.

[0014] Preferably, the rear end of the drive rod is fixed with two positioning shafts, which are arranged one in front of the other. Each end of the positioning shaft is equipped with a rotatable second roller. There are two second slides, which are arranged symmetrically. The grooves of the two second slides are arranged face to face, and the second rollers at both ends of the positioning shaft are located in the grooves of the two second slides respectively.

[0015] A massage chair, including the aforementioned hidden structure for a leg massager.

[0016] The beneficial effects of the technical solution of the present invention are as follows: the drive rod pushes the lower end of the leg massager horizontally, and since the connection position between the drive rod and the leg massager is fixed, the lowest point of the leg massager during the movement process is also relatively fixed, making the movement process of the leg massager more stable; and during the movement of the leg massager, there are support points on both the upper and lower sides of the leg massager for driving and support, which further improves the movement process and support effect of the leg massager. Attached Figure Description

[0017] Figure 1 A schematic diagram of the massage chair structure with the leg massager extended from the seat cushion frame; Figure 2 A schematic diagram of the massage chair structure when the leg massager is retracted into the seat cushion frame; Figure 3 A schematic diagram of the massage chair structure after removing the backrest cover and seat cushion board, with the leg massager extended from the seat cushion frame; Figure 4 A schematic diagram of the massage chair after removing the backrest cover and seat cushion when the leg massager is stored in the seat cushion frame; Figure 5 A schematic diagram of the massage chair after removing the backrest and leg massager, with the leg massager extended from the seat cushion frame; Figure 6 A schematic diagram of the massage chair structure after removing the backrest and leg massager, with the leg massager stored in the seat cushion frame; Figure 7 This is a schematic diagram of the connection structure between the drive rod and the positioning shaft.

[0018] Reference numerals: 1. Backrest frame; 11. Massage mechanism; 12. Fifth working part; 13. Sixth working part; 2. Seat cushion frame; 21. Seat cushion board; 22. Armrest; 3. Leg massager; 31. Support; 32. First roller; 33. Clearance groove; 41. First link; 411. First working part; 412. Second working part; 42. Second link; 43. Drive rod; 431. Third working part; 432. Fourth working part; 44. Third link; 45. Second slide rail; 46. Positioning shaft; 47. Second roller; 48. First slide rail; 49. Slider; 51. Electric push rod; 52. Proximity switch; 53. Fourth hinge shaft. Implementation

[0019] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The orientation described in the following embodiments is based on Figure 3 The directions shown are for reference. Figure 3 In the middle, with the backrest seated position as the back, the leg massager position as the front, and the foot position as the bottom. Example

[0025] like Figures 1 to 6 The illustrated concealed structure for a leg massager includes a seat frame 2, a leg massager 3, and a drive unit. A first slide rail 48 and a second slide rail 45 are installed within the seat frame 2. There are two first slides 48, which are symmetrically arranged on the left and right sides of the seat cushion frame 2. The first slides 48 are inclined. Each of the two first slides 48 is equipped with a slider 49, and both sliders 49 are hinged to the upper end of the leg massager 3. The second slide 45 is located between the two first slides 48. The second slide 45 extends in the front-to-back direction. A drive rod 43 is slidably installed inside the second slide 45. The front end of the drive rod 43 is hinged to the lower end of the leg massager 3. The drive component can drive the drive rod 43 to move back and forth on the second slide 45. When the leg massager 3 is retracted into the seat cushion 2: the drive unit pulls the drive rod 43 to move backward along the second slide rail 45, the drive rod 43 pulls the leg massager 3 to move backward, the upper end of the leg massager 3 drives the slider 49 to move backward, the slider 49 moves backward and downward along the first slide rail 48, the slider 49 drives the upper end of the leg massager 3 to move backward and downward, so that the leg massager gradually lies down and is retracted into the seat cushion 2; When the leg massager 3 extends from the seat cushion frame 2: the driving member pushes the driving rod 43 forward along the second slide rail 45, the driving rod 43 pushes the lower end of the leg massager 3 forward, the leg massager 3 pulls the slider 49 forward along the first slide rail 48, the slider 49 slides along the first slide rail 48 and gradually moves upward, the slider 49 drives the upper end of the leg massager 3 to gradually move upward, thereby causing the leg massager to extend from the seat cushion frame 2 and gradually stand up.

[0026] With this configuration, the support points on the leg massager 3 include its connection points with the two sliders 49 and its hinge point with the drive rod 43. These three support points are located on the upper and lower sides and are arranged in a triangular shape, which makes the movement of the leg massager 3 more stable. The drive rod pushes the lower end of the leg massager 3 horizontally, and since the connection position between the drive rod and the leg massager 3 is fixed, the lowest point of the leg massager 3 during its movement is also relatively fixed. Furthermore, during the movement of the leg massager 3, there are support points on both the upper and lower sides of the leg massager 3 for driving and support, which further improves the movement and support effect of the leg massager 3.

[0027] To make the movement of the leg massager 3 more stable, in this embodiment, such as Figures 2 to 5 As shown, there are two first slides 48, which are symmetrically arranged on both sides of the leg massager 3.

[0028] More preferably, a groove is formed on the first slide rail 48, the groove extending along the length of the first slide rail 48, and the slider 49 is installed in the groove. This makes the chair structure more compact, concealed, and aesthetically pleasing. More preferably, a proximity switch 52 is installed at the end of the first slide rail 48 to limit the travel distance of the leg massager 3. When the slider 49 moves to the maximum or minimum travel point, the leg massager 3 has fully extended from the seat cushion frame 2, and the angle between the leg massager 3 and the seat cushion frame 2 meets the design requirements. At this time, the slider 49 abuts against the proximity switch 52, and the backrest frame of the massage chair stops moving.

[0029] To make the massage chair more compact, in this embodiment, such as Figures 1 to 6 As shown, the middle position of the leg massager 3 and the middle position of the backrest frame 1 are connected by a linkage structure. Specifically, the linkage structure includes a first linkage 41, a second linkage 42, and a third linkage 44. One end of the first linkage 41 is hinged to the seat cushion frame 2 via a first hinge axis, and the other end of the first linkage 41 is hinged to one end of the second linkage 42 via a second hinge axis. The other end of the second linkage 42 is hinged to the drive rod 43 via a third hinge axis. One end of the third linkage 44 is hinged to the drive rod 43 via a sixth hinge axis, and the other end of the third linkage 44 is connected to the drive component. The first slide rail 48 is fixed to the seat cushion frame 2, and the rear end of the first slide rail 48 is lower than the front end. With this configuration, the linkage structure can be folded, making the massage chair structure more compact.

[0030] Furthermore, such as Figure 2 As shown, the fourth hinge shaft 53 is installed in the middle position of the leg massager 3. With this configuration, the left and right sides of the leg massager 3 are connected to the slider 49, while the middle position of the leg massager 3 is driven by the drive rod 43, making the drive structure simpler and the drive process more stable.

[0031] Furthermore, such as Figure 2 As shown, the leg massager 3 has two symmetrically arranged first rollers 32 rotatably mounted on its bottom. The first rollers 32 are located at the lower end of the rear side of the leg massager 3, and are parallel to the fourth hinge shaft 53. With this arrangement, when the leg massager 3 extends out of the seat cushion 2, it will swing around the rotation center of the first rollers 32. After the leg massager 3 extends out of the seat cushion 2, the first rollers 32 first touch the ground. However, due to the horizontal forward movement of the drive rod 43, the first rollers 32 also move horizontally forward, making the height position of the first rollers 32 unpredictable. This ensures that the movement of the massager will not affect the posture of the seat cushion 2, and that the massage chair will not tip over or vibrate due to static friction between the leg massager 3 and the ground or changes in the height of the first rollers 32.

[0032] Furthermore, such as Figure 2 As shown, the leg massager 3 has a clearance groove 33. When the leg massager 3 is hidden inside the seat cushion frame 2, the linkage structure folds and sinks into the clearance groove 33 of the leg massager 3. Specifically, the end of the drive rod 43 extends into the clearance groove 33 and is hinged through the fourth hinge shaft 53. When the leg massager 3 extends into the seat cushion frame 2, the drive rod 43 and part of the second connecting rod 42 can be inserted into the clearance groove 33 on the leg massager 3. With this configuration, when the leg massager 3 extends out of the seat cushion frame 2, the connected first connecting rod 41, second connecting rod 42, drive rod 43, and third connecting rod 44 unfold inside the seat cushion frame 2. When the leg massager 3 retracts into the seat cushion frame 2, the linkage structure folds again and inserts into the clearance groove 33, thus making the synchronization component more concealed.

[0033] In this embodiment, as Figures 1 to 4 As shown, a bracket 31 is fixed to the rear of the leg massager 3. The bracket 31 is L-shaped, with one side of the bracket 31 fixedly connected to the leg massager 3, and the other side of the bracket 31 extending from the leg massager 3 and hinged to the slider 49 via a hinge axis. This arrangement allows the leg massager 3 to extend more fully. Furthermore, there are two brackets 31, each hinged to one slider 49.

[0034] In this embodiment, as Figures 2 to 6 As shown, two symmetrically arranged second slide rails 45 are installed inside the seat cushion frame 2. Each second slide rail 45 has a groove, and the grooves on the two second slide rails 45 are arranged facing each other. The drive rod 43 is located between the two second slide rails 45. Figure 7As shown, two positioning shafts 46 are fixedly mounted on the drive rod 43, positioned one behind the other. The positioning shafts 46 pass through the drive rod 43, and their two ends extend into the grooves of two second slide rails 45 after passing through the drive rod 43. Second rollers 47 are mounted on both ends of the drive rod 43, and these rollers 47 are located within the grooves of the second slide rails 45. This arrangement reduces friction between the drive rod 43 and the seat frame 2 via rolling, allowing the leg massager 3 to move more easily.

[0035] In this embodiment, the backrest frame 1 is hinged to the rear end of the seat cushion frame. A massage mechanism that can move up and down is installed on the backrest frame. One end of the third link 44 is hinged to the middle position of the bottom of the backrest frame 1 through the fifth hinge shaft. The other end of the third link 44 is hinged to the first link 41. The two ends of the drive member 43 are respectively hinged to the seat cushion frame 2 and the backrest frame 1.

[0036] In this embodiment, the driving component includes a cylinder 51, with both ends of the cylinder 51 hinged to the backrest frame 1 and the seat cushion frame 2, respectively. In other embodiments, the driving component can also be a motor lead screw structure, a cam slider structure, etc. In other embodiments, the driving component can also be an electric push cylinder, a lead screw structure, or other transmission structure.

[0037] A massage chair, the massage chair using the above method, includes the above-described structure. For example... Figures 1 to 4 As shown, a sliding massage mechanism 11 is installed on the backrest frame 1. The backrest frame 1 is covered with a support cloth. A seat cushion board 21 is fixed to the top of the seat cushion frame 2. Armrests 22 are fixed to both the left and right sides of the seat cushion frame 2. The bottom of the seat cushion frame has four downward protruding feet, and each of the four feet is fitted with a foot cover.

[0038] The specific control process of the massage chair is as follows: When the leg massager 3 extends, the electric push rod 51 drives the backrest frame 1 to swing, the backrest frame 1 reclines backward, the bottom of the backrest frame 1 swings forward, the backrest frame 1 drives the third link 44 to move forward, the third link 44 drives the first link 41 to swing around its hinge point with the seat cushion frame 2, the other end of the first link 41 swings forward, the first link 41 drives the second link 42 to move forward, the second link 42 pushes the drive rod 43 to slide forward, the drive rod 43 pushes the leg massager 3 forward to move outward from the seat cushion frame 2, the leg massager 3 drives the slider 49 to move forward along the first slide rail 48, the slider 49 moves forward along the first slide rail 48 and gradually moves upward, the slider 49 drives the massage end of the leg massager 3 to gradually lift up.

[0039] When the leg massager 3 retracts into the seat cushion 2, the electric push rod 51 drives the backrest frame 1 to swing, the backrest frame 1 gradually becomes vertical, the bottom of the backrest frame 1 swings backward, the backrest frame 1 pulls the third link 44 to move backward, the third link 44 pulls the first link 41 to swing around its hinge point with the seat cushion 2, the other end of the first link 41 swings backward, the first link 41 pulls the second link 42 to move backward, the second link 42 pulls the drive rod 43 to slide backward, the drive rod 43 pulls the leg massager 3 to move into the seat cushion 2, the leg massager 3 drives the slider 49 to move backward along the first slide rail 48, the slider 49 moves backward along the first slide rail 48 and gradually moves downward, the slider 49 drives the massage end of the leg massager 3 to gradually lie down.

[0040] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A concealed structure for a leg massager, comprising a seat frame (2), a leg massager (3), and a drive unit, characterized in that: The seat frame (2) is equipped with a first slide rail (48) and a second slide rail (45); The first slide (48) is set on the seat cushion frame (2). The first slide (48) is inclined. A slider (49) is slidably installed on the first slide (48). The slider (49) is hinged to the upper end of the leg massager (3). The second slide (45) extends in the front-back direction. A drive rod (43) is slidably installed inside the second slide (45). The front end of the drive rod (43) is hinged to the lower end of the leg massager (3). The drive unit can drive the drive rod (43) to move back and forth on the second slide (45). When the leg massager (3) is retracted into the seat cushion (2): the drive unit pulls the drive rod (43) to move backward along the second slide (45), the drive rod (43) pulls the leg massager (3) to move backward, the upper end of the leg massager (3) drives the slider (49) to move backward, the slider (49) moves backward and downward along the first slide (48), the slider (49) drives the upper end of the leg massager (3) to move backward and downward, so that the leg massager gradually lies down and is retracted into the seat cushion (2); When the leg massager (3) extends out of the seat frame (2): the drive pushes the drive rod (43) forward along the second slide (45), the drive rod (43) pushes the lower end of the leg massager (3) forward, the leg massager (3) pulls the slider (49) forward along the first slide (48), the slider (49) slides along the first slide (48) and gradually moves upward, the slider (49) drives the upper end of the leg massager (3) to gradually move upward, thereby causing the leg massager to extend out of the seat frame (2) and gradually stand up; It also includes a first link (41), a second link (42) and a third link (44). One end of the first link (41) is hinged to the seat cushion frame (2), the other end of the first link (41) is hinged to one end of the second link (42), the other end of the second link (42) is hinged to the drive rod (43), one end of the third link (44) is hinged to the first link (41), the other end of the third link (44) is hinged to the backrest frame (1), and both ends of the drive member are hinged to the backrest frame (1) and the seat cushion frame (2) respectively.

2. The hidden structure of a leg massager according to claim 1, characterized in that: The rear end of the leg massager (3) is provided with a clearance groove (33); when the leg massager (3) is retracted into the seat frame (2), the first connecting rod (41), the second connecting rod (42) and the drive rod (43) are folded, and the drive rod (43) and the second connecting rod (42) can both extend into the clearance groove (33).

3. The hidden structure of a leg massager according to claim 1, characterized in that: The upper end of the rear side of the leg massager (3) is fixed with a symmetrically arranged bracket (31), and the bracket (31) is hinged to the slider (49).

4. The hidden structure of a leg massager according to claim 1, characterized in that: The lower end of the rear side of the leg massager (3) is fixed with two symmetrically arranged first rollers (32). The drive rod (43) is hinged to the lower end of the leg massager (3) through the fourth hinge shaft (53). The fourth hinge shaft (53) is located between the two first rollers (32) and is parallel to the first rollers (32).

5. The hidden structure of a leg massager according to claim 1, characterized in that: A proximity switch (52) is installed at the end of the first slide (48).

6. The hidden structure of a leg massager according to claim 1, characterized in that: The drive unit includes a cylinder mounted on the seat frame (2) for driving the drive rod (43) to slide.

7. The hidden structure of a leg massager according to claim 1, characterized in that: The rear end of the drive rod (43) is fixed with two positioning shafts (46), which are arranged one in front of the other. Both ends of the positioning shafts (46) are equipped with rotatable second rollers (47). There are two second slides (45), which are arranged symmetrically. The grooves of the two second slides (45) are arranged face to face. The second rollers (47) at both ends of the positioning shafts (46) are located in the grooves of the two second slides (45).

8. A massage chair, characterized in that: Includes a hidden structure for a leg massager as described in any one of claims 1-7.

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