Chair frame and full-body massager

Abstract

Provided in the present invention is a chair frame of a massager, comprising a back frame, a seat frame, a guide device, and a deformation regulating mechanism. A spacing gap is formed between the back frame and the seat frame, and the guide device comprises a back frame guide rail, a seat frame guide rail, and a connecting guide rail. The chair frame further comprises the deformation regulating mechanism. The deformation regulating mechanism comprises a first elastic plate, a second elastic plate, and a spacing maintaining device. The spacing maintaining device is adapted to maintain the spacing between the first elastic plate and the second elastic plate to be substantially the same at the spacing gap. The spacing maintaining device comprises a spacing member, an upper support member, and a lower support member. The first elastic plate is sandwiched between the spacing member and the upper support member, the second elastic plate is sandwiched between the spacing member and the lower support member, and upper and lower ends of the spacing member are respectively adapted to press against the first elastic plate and the second elastic plate to maintain the spacing therebetween. A massage mechanism of the present application is capable of smoothly moving at the spacing gap.

Description

A chair frame and a full-body massager Technical Field

[0001] This invention relates to the field of massage equipment technology, and in particular to improvements made to the chair frame structure in a full-body massager. The aim is to provide a chair frame structure that ensures smooth movement of the massage mechanism on the chair frame, improves the massage effect and user experience, and a full-body massager including the chair frame. Background Technology

[0002] With the fast pace of life and increased emphasis on health, massage machines, as a type of home appliance that can relieve physical fatigue and promote blood circulation, have become increasingly popular. Full-body massage machines, as a type of massage machine, simulate the movements and pressure of human hand massage to massage the user's entire body, thereby achieving the effects of muscle relaxation and stress relief. However, existing full-body massage machines still have some shortcomings in their chair frame design, especially in the guide rail system that guides the movement of the massage motor. These issues directly affect the comfort and effectiveness of the massage.

[0003] Traditional full-body massage chair frames typically consist of a backrest, a seat, and a guide mechanism connecting the two. The backrest adjusts its angle with the seat by rotating around a set axis to accommodate different user body curves and massage needs. However, this design creates a gap between the backrest and the seat, within which the massage mechanism needs to move smoothly to achieve continuous massage from the back to the seat. Existing guide mechanisms, such as backrest rails, seat rails, and connecting rails, can achieve this basic function, but in actual use, the connecting rails are prone to elastic deformation due to the weight and movement of the massage mechanism. This causes the massage mechanism to bounce or get stuck during movement, severely affecting the smoothness and comfort of the massage.

[0004] To address this issue, the industry has tried various methods, such as increasing the rigidity of the guide rails and optimizing their shape. However, these methods often come at the cost of increased costs or sacrificing the overall flexibility of the chair frame. For example, simply increasing the rigidity of the guide rails may make the chair frame bulky and difficult to adjust, while optimizing the shape of the guide rails may limit the range of motion of the massage mechanism. Therefore, how to ensure the smooth movement of the massage mechanism within the gaps while maintaining a lightweight and flexible chair frame has become a pressing technical challenge.

[0005] Furthermore, the adaptability of existing massage chair frames to accommodate different user body shapes and massage needs needs improvement. Traditional chair frame structures often use fixed guide rail layouts, making it difficult to personalize them according to the specific needs of users. This not only limits the scope of use of the massage machine but also reduces the user's massage experience.

[0006] In summary, existing full-body massager chair frames have many shortcomings in terms of guide rail system design, smoothness assurance, and personalized adjustments. Therefore, this invention aims to provide an improved chair frame structure that effectively regulates the elastic deformation of the connecting guide rails by introducing a deformation regulating mechanism, ensuring smooth movement of the massage mechanism within the gaps. Simultaneously, this chair frame structure should also possess good flexibility and adaptability to meet the massage needs of different users. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a chair frame that can ensure the smooth movement of the massage mechanism in the gaps.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a massage machine chair frame, comprising a back frame, a seat frame, and a guiding device, wherein the back frame adjusts the treatment angle between itself and the seat frame by rotating about a set axis, and a gap is formed between the back frame and the seat frame; the guiding device comprises a back frame guide rail, a seat frame guide rail, and a connecting guide rail, wherein the connecting guide rail is disposed at the gap to connect the back frame guide rail and the seat frame guide rail; the chair frame further comprises: a deformation regulating mechanism, which regulates the elastic deformation generated by the connecting guide rail to provide a smooth movement track for the massage mechanism of the massage machine at the gap; The deformation regulating mechanism includes a first elastic plate, a second elastic plate, and a spacing maintaining device, wherein the first elastic plate and the second elastic plate are arranged in parallel, and the spacing maintaining device is adapted to keep the spacing between the first elastic plate and the second elastic plate substantially the same at the gap; the spacing maintaining device includes a spacing member, an upper support member, and a lower support member, wherein the first elastic plate is sandwiched between the spacing member and the upper support member, and the second elastic plate is sandwiched between the spacing member and the lower support member, and the upper and lower ends of the spacing member are respectively adapted to press against the first elastic plate and the second elastic plate to maintain the spacing between them.

[0009] Preferably, the spacing maintaining device is a set and is connected to the back frame or the seat frame.

[0010] Preferably, the backrest or the seat frame is equipped with a handrail to support the user, and at least one of the spacing maintaining devices is connected to the handrail.

[0011] Preferably, the spacing maintaining device comprises at least two sets, arranged at intervals in the extending direction of the connecting guide rail, one set being connected to the back frame and the other set being connected to the seat frame.

[0012] Preferably, the deformation regulation mechanism includes a first spacing holding device, a second spacing holding device, and a lower base plate. The first spacing holding device and the second spacing holding device are both disposed on the lower base plate, and the lower base plate is movably connected to the frame via a first connecting rod.

[0013] Preferably, the deformation regulation mechanism includes a third spacing holding device, a fourth spacing holding device, and a central base plate. The third spacing holding device and the fourth spacing holding device are both disposed on the central base plate, which is movably connected to the back frame via a second link.

[0014] Preferably, the deformation regulation mechanism further includes a fifth spacing holding device and an upper base plate, the fifth spacing holding device being disposed on the upper base plate, and the upper base plate being movably connected via a third link and a second link.

[0015] Preferably, the spacing maintaining device further includes a base plate, on which the spacing member, upper support member and lower support member are rotatably engaged.

[0016] Preferably, the top surface of the spacer member is configured as an upwardly convex arc surface to adapt to the elastic deformation of the first elastic plate, and its bottom surface is configured as a downwardly convex arc surface to adapt to the elastic deformation of the second elastic plate.

[0017] Preferably, both the upper support and the lower support are configured in the shape of rollers.

[0018] Preferably, the seat guide rail and the seat frame slide in a front-to-back direction.

[0019] Preferably, the first elastic plate is fixed to the back frame and slides with the seat frame in the front-rear direction.

[0020] Preferably, the displacement of the first elastic plate relative to the seat frame that allows it to slide back and forth is greater than the displacement of the seat frame guide rail relative to the seat frame that allows it to slide back and forth.

[0021] Preferably, both ends of the second elastic plate are fixed to the back frame and the seat frame, respectively.

[0022] Preferably, the connecting guide rail has an extension portion extending between the second elastic plate and the spacer member, the extension portion being in close contact with the second elastic plate, and the spacer member pressing against the extension portion.

[0023] This application also provides a full-body massager, including a chair frame and a massage mechanism, wherein the chair frame has a guide device for guiding the massage mechanism to move on the user's back and seat, characterized in that the chair frame is configured as described in any of the preceding claims.

[0024] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects: The chair frame of the massage machine of the present invention, by sandwiching the first elastic plate between the spacer member and the upper support member, and sandwiching the second elastic plate between the spacer member and the lower support member, and the spacer member keeping the distance between the first elastic plate and the second elastic plate basically the same in the spacer gap, the strength of the chair frame in the spacer gap is improved by the cooperation of the first elastic plate, the second elastic plate and the spacer member, which can avoid or reduce the bumps or jams caused by the massage core during the movement of the spacer gap. The solution of this application can make the massage core move smoothly on the chair frame, improve the massage effect and user experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0026] Figures 1 to 3 illustrate schematic diagrams of a massage machine according to an embodiment from different perspectives;

[0027] Figure 4 shows a first exploded view of a massage machine according to an embodiment;

[0028] Figure 5 illustrates a second exploded view of a massager according to one embodiment;

[0029] Figure 6 illustrates a third exploded view of a massager according to one embodiment;

[0030] Figure 7 illustrates a fourth exploded view of a massage machine according to one embodiment;

[0031] Figure 8 illustrates a schematic diagram of the seat guide rail, connecting guide rail, and deformation regulating mechanism in an engaged state according to an embodiment.

[0032] Figure 9 shows a first exploded view of a seat guide rail, connecting guide rail, and deformation regulating mechanism according to an embodiment;

[0033] Figure 10 illustrates a second exploded view of the seat guide rail, connecting guide rail, and deformation regulating mechanism according to one embodiment;

[0034] Figure 11 shows a third exploded view of the seat guide rail, connecting guide rail, and deformation regulating mechanism according to one embodiment.

[0035] Reference numerals: Base frame 1, First guide rail 1A, Second guide rail 1B, Back frame 2, Seat frame 3, Drive mechanism 4, Deformation regulation mechanism 5, First elastic plate 6, Second elastic plate 7, Spacing maintaining device 8, Spacing member 8A, Upper support member 8B, Lower support member 8C, Guide device P, Back frame guide rail P1, Seat frame guide rail P2, Connecting guide rail P3. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, features in the following embodiments can be combined with each other.

[0038] Referring to Figures 1 to 7, in one embodiment, the full-body massager of this application is a massage chair, which includes a chair frame and a massage mechanism T. The massage mechanism T is mounted on the chair frame and can move along the chair frame to massage the user. In this embodiment, the chair frame includes a base frame 1, a back frame 2, a seat frame 3, a drive mechanism 4, a deformation regulating mechanism 5, and a guide device P. The components will be described in detail below with reference to the figures. For ease of explanation, in Figure 1, the X direction is from right to left, the Y direction is from front to back, and the Z direction is from bottom to top.

[0039] [Base Frame] The base frame 1 is the part of the chair frame that supports the chair on the ground. Referring to Figure 4, in this embodiment, the base frame 1 has a first guide rail 1A and a second guide rail 1B on its left and right sides. The first guide rail 1A gradually slopes upward from back to front, with an angle between 10 and 30 degrees, such as 20 degrees. The second guide rail 1B gradually slopes downward from back to front, with an angle between 60 and 80 degrees, such as 70 degrees. The lower side of the second guide rail 1B is approximately located above the middle of the first guide rail 1A. The first guide rail 1A is used to roll in contact with the seat frame roller N1 of the seat frame 3, and the second guide rail 1B is used to roll in contact with the back frame roller N2 of the back frame 2.

[0040] [Backrest] The backrest 2 is used to support the user's back and head. The backrest 2 has backrest rollers N2 located on the left and right sides. The backrest rollers N2 are in rolling engagement with the second guide rail 1B.

[0041] [Seat Frame] The seat frame 3 is used to support the user's buttocks. The seat frame 3 has seat frame rollers N1 located on the left and right sides, and the seat frame rollers N1 are in rolling engagement with the first guide rail 1A. The back frame 2 adjusts the treatment angle between itself and the seat frame 3 by rotating about a set axis. In this embodiment, the left and right sides of the back frame 2 are pivotally connected to the seat frame 3 by pivot members. A gap S is formed between the back frame 2 and the seat frame 3. Referring to Figures 4 and 6, the seat frame 3 has a seat frame body 3A, a limiting member 3B that restricts the first elastic plate 6 from moving upward away from the seat frame body 3A, a first limiting block 3C that engages with the first elastic plate 6, and a second limiting block 3D that engages with the seat frame guide rail P2 and the second elastic plate 7. The limiting member 3B is detachably mounted on the seat frame body 3A, and an installation space for the first elastic plate 6 is formed between the limiting member 3B and the seat frame body 3A. The first limiting block 3C is located between the limiting member 3B and the seat frame body 3A in the vertical direction.

[0042] [Drive Mechanism] Referring to Figures 1 to 3, in this embodiment, the lower side of the backrest 2 extends to the lower side of the seat frame 3. The drive mechanism 4 is installed between the rear side of the base frame 1 and the lower side of the backrest 2. The drive mechanism 4 drives the backrest 2 to move relative to the base frame 1. When the backrest 2 moves relative to the base frame 1, it drives the seat frame 3 to move synchronously relative to the base frame 1, changing the treatment angle between the backrest 2 and the seat frame 3, thereby changing the posture of the user supported by the chair frame. In this embodiment, the drive mechanism 4 is a telescopic push rod, one end of which is pivotally connected to the base frame 1, and the other end is pivotally connected to the backrest 2. In another embodiment, the drive mechanism 4 can be adjusted to be a slider push rod. In another embodiment, the drive mechanism 4 can be adjusted to be installed between the base frame 1 and the seat frame 3.

[0043] [Guiding Device] The guiding device P is used to guide the massage mechanism T to move along the user's back and seat. Specifically, referring to Figures 1 to 6, it includes a backrest guide rail P1, a seat frame guide rail P2, and a connecting guide rail P3. The backrest guide rail P1 is located on the backrest 2, the seat frame guide rail P2 is located on the seat frame 3, and the connecting guide rail P3 is positioned at the gap S to connect the backrest guide rail P1 and the seat frame guide rail P2. The massage mechanism T has a traveling gear that cooperates with the backrest guide rail P1, the seat frame guide rail P2, and the connecting guide rail P3. The massage mechanism T has a common structure and will not be described in detail.

[0044] Referring to Figure 4, in this embodiment, the backrest guide rail P1 includes a backrest guide rail body P11 and a separable portion P12. The separable portion P12 is detachably mounted on the backrest guide rail body P11. When the separable portion P12 is separated, the massage mechanism T can be disassembled and assembled on the backrest guide rail body P11. In this embodiment, the backrest guide rail P1 is mounted on the backrest 2 by a fastening structure. However, it should be understood that in another embodiment, the backrest guide rail P1 can be designed to be integrally formed with the backrest 2, such as by injection molding.

[0045] Referring to Figures 4, 6, and 10, the front side of the seat frame guide rail P2 has a seat frame guide rail mounting groove K. The second limiting block 3D is embedded in the seat frame guide rail mounting groove K. The size of the seat frame guide rail mounting groove K in the front-back direction is slightly larger than the size of the second limiting block 3D, so that the seat frame guide rail P2 and the seat frame 3 slide in the front-back direction. When the tilt angle of the back frame 2 relative to the seat frame 3 changes, the seat frame guide rail P2 adaptively slides back and forth relative to the seat frame 3. Specifically, when the back frame 2 rotates backward, the seat frame guide rail P2 slides backward; correspondingly, when the back frame 2 tilts backward, the seat frame guide rail P2 slides forward. The sliding engagement of the seat frame guide rail P2 and the seat frame 3 in the front-back direction ensures that the connecting guide rail P3 can adapt its angle to flexible bending changes when the back frame 2 rotates relative to the seat frame 3.

[0046] Referring to Figures 4, 6, and 10, in this embodiment, the connecting guide rail P3 and the seat frame guide rail P2 are an integral structure, which can be integrally molded by injection molding. As shown in Figure 6, the back frame guide rail P1 has a first joint Q1, and the connecting guide rail P3 has a second joint Q2, which is structurally adapted to the first joint Q1 (in this embodiment, it is a fitted structure that adapts to each other), so that the back frame guide rail P1 and the connecting guide rail P3 can be connected so that the massage mechanism T can move between them. Referring to Figures 8 to 11, the connecting guide rail P3 has an extension P31 extending between the second elastic plate 7 and the spacer member 8A. The extension P31 is in close contact with the second elastic plate 7, and the spacer member 8A presses against the extension P31, that is, the spacer member 8A indirectly presses against the second elastic plate 7. In another embodiment, it can be adjusted so that the spacer member 8A directly presses against the second elastic plate 7.

[0047] [Deformation Regulation Mechanism] The deformation regulation mechanism 5 regulates the elastic deformation generated by the connecting guide rail P3 to provide a smooth movement track for the massage mechanism T of the massage machine at the gap S. Referring to Figures 8 to 11, the deformation regulation mechanism 5 includes a first elastic plate 6, a second elastic plate 7, and a plurality of spacing maintaining devices 8. The first elastic plate 6 and the second elastic plate 7 are arranged in parallel, and the spacing maintaining devices 8 are adapted to keep the spacing between the first elastic plate 6 and the second elastic plate 7 substantially the same at the gap S. The first elastic plate 6 and the second elastic plate 7 are, for example, made of spring steel.

[0048] The first elastic plate 6 is fixed to the back frame 2 and the seat frame 3 at both ends, respectively. Specifically, referring to Figure 10, the upper side of the first elastic plate 10 has a snap-fit ​​hole 6B, and the back frame 2 has a corresponding snap-fit ​​part. The first elastic plate 6 is fixed to the back frame 2 by the snap-fit ​​part being inserted into the snap-fit ​​hole 6B. The front side of the first elastic plate 6 has a mounting groove 6A, the position of which corresponds to the position of the first limiting block 3C. The first limiting block 3C is inserted into the mounting groove 6A. The dimension of the mounting groove 6A in the front-back direction is slightly larger than the dimension of the first limiting block 3C, so that the first elastic plate 6 and the seat frame 3 slide in the front-back direction. Referring to Figure 10, the dimension H2 of the mounting groove 6A in the front-back direction is larger than the dimension H1 of the seat frame guide rail mounting groove K in the front-back direction. This design allows the displacement of the first elastic plate 6 relative to the seat frame 3 to be slightly greater than the displacement of the seat frame guide rail P2 relative to the seat frame 3. The first elastic plate 6 and the seat frame 3 slide together in the front-to-back direction, which can ensure that the connecting guide rail P3 can adapt its angle to flexible bending changes when the back frame 2 rotates relative to the seat frame 3.

[0049] The two ends of the second elastic plate 7 are respectively fixed to the back frame 2 and the seat frame 3. Specifically, referring to Figure 10, the front and rear ends of the second elastic plate 7 have locking holes 7A and 7B respectively. The position of the locking hole 7A corresponds to the position of the second limiting block 3D and the seat frame guide rail mounting groove K. The back frame 2 has a locking part corresponding to the locking hole 7B. By engaging the locking holes 7A and 7B with the corresponding locking parts on the first limiting block 3A and the back frame 2, the two ends of the second elastic plate 7 are respectively fixed to the back frame 2 and the seat frame 3. The seat frame guide rail P2 and the second elastic plate 7 are both engaged with the seat frame 3 through the second limiting block 3D, making the overall structure of the chair frame more compact. In another embodiment, the second elastic plate 7 can also be adjusted to slide with the seat frame 3.

[0050] In this embodiment, there are five spacing holding devices 8, namely a first spacing holding device 8-1, a second spacing holding device 8-2, a third spacing holding device 8-3, a fourth spacing holding device 8-4, and a fifth spacing holding device 8-5. These five spacing holding devices 8 are arranged at intervals in the extension direction of the connecting guide rail P3. In this embodiment, the spacing holding device 8 includes a spacing member 8A, an upper support member 8B, and a lower support member 8C. The spacing member 8A, the upper support member 8B, and the lower support member 8C are all rotatably connected to the substrate (lower substrate M1, middle substrate M2, and upper substrate M3).

[0051] Specifically, referring to FIG10, in this embodiment, the spacer member 8A has a sidewall N1 located on the outer side in the left-right direction, an upper abutment portion N2 located on the upper side of the sidewall N1, and a lower abutment portion N3 located on the lower side of the sidewall N1. The spacer member 8A is connected to the substrate (lower substrate M1, middle substrate M2, and upper substrate M3) through the sidewall N1. In this embodiment, the sidewall N1 is rotatably joined to the substrate (lower substrate M1, middle substrate M2, and upper substrate M3).

[0052] The upper support member 8B is located above the upper abutment portion N2 of the spacer member 8A, and an upper clamping space is formed therebetween to clamp the first elastic plate 6, so that the first elastic plate 6 can be clamped between the spacer member 8A and the upper support member 8B. The lower support member 8C is located below the lower abutment portion N3 of the spacer member 8A, and a lower clamping space is formed therebetween to clamp the second elastic plate 7, so that the second elastic plate 7 is clamped between the spacer member 8A and the lower support member 8C. The upper and lower ends of the spacer member 8A (i.e., the upper abutment portion N2 and the lower abutment portion N3) are respectively adapted to press against the first elastic plate 6 and the second elastic plate 7 to maintain the distance between them (as mentioned above, in this embodiment, the spacer member 8A indirectly presses against the second elastic plate 7). The top surface of the spacer member 8A (the upper surface of the upper abutment portion N2) is configured as an upwardly convex arc surface to accommodate the elastic deformation of the first elastic plate 6, and its bottom surface (the lower surface of the lower abutment portion N3) is configured as a downwardly convex arc surface to accommodate the elastic deformation of the second elastic plate 7. In this embodiment, both the upper support member 8B and the lower support member 8C are configured as rollers and are rotatably coupled to the substrates (lower substrate M1, middle substrate M2, and upper substrate M3).

[0053] The first spacing retaining device 8-1 and the second spacing retaining device 8-2 are both disposed on the lower base plate M1. The lower base plate M1 is movably connected to the base frame 3 via the first connecting rod L1 (refer to Figures 7 to 10). In this embodiment, the first connecting rod L1 is rotatably engaged with the lower base plate M1 and the base frame 3, but it can also be adjusted to a ball joint or other engagement method. The first spacing retaining device 8-1 and the second spacing retaining device 8-2 constitute a set of spacing retaining devices connected to the base frame 3.

[0054] Both the third spacing retaining device 8-3 and the fourth spacing retaining device 8-4 are disposed on the central substrate M2, which is movably connected to the back frame 2 via the second connecting rod L2 (refer to Figures 7 to 10). In this embodiment, the second connecting rod L2 is rotatably engaged with the central substrate M2 and the back frame 2, but it can also be adjusted to a ball joint or other engagement method. The third spacing retaining device 8-3 and the fourth spacing retaining device 8-4 constitute a set of spacing retaining devices connected to the back frame 2.

[0055] The fifth spacing holding device 8-5 is disposed on the upper substrate M3. The upper substrate M3 is movably connected by the third link L3 and the second link L2 (refer to Figures 8 to 10). In this embodiment, the third link L3 is rotatably engaged with the upper substrate M3 and the second link L2, but it can also be adjusted to a ball joint or other engagement method.

[0056] By adopting the above structure, when the back frame 2 rotates relative to the seat frame 3, the curvature of the first elastic plate 6 and the second elastic plate 7 at the gap S is constantly changing. The gap maintaining device 8 can keep the gap between the first elastic plate 6 and the second elastic plate 7 basically the same at the gap, which can make the massage mechanism move smoothly on the chair frame, improve the massage effect and user experience.

[0057] [Modified Embodiments] The above describes the specific structure of a massager according to one embodiment of this application, but it should be understood that the specific embodiments of this application are not limited thereto. In another embodiment, the fifth spacing maintaining device 8-5 can be omitted. In another embodiment, the seat frame 3 can be fixed to the base frame 1, allowing the back frame 2 to rotate around a set axis (relative to the seat frame or base frame). In another embodiment, a lower limb massage device can be pivotally connected to the front side of the seat frame 3, and a lower limb drive mechanism for driving the lower limb massage device to rotate can be installed on the seat frame 3. In another embodiment, the spacing maintaining device 8 can be adjusted to have only one set (the number can be adjusted according to the size requirements of the gap S), connected to the back frame 2 or the seat frame 3. In another embodiment, a handrail supporting the user is installed on the back frame 2 or the seat frame 3 (the handrail can be equipped with a structure such as an airbag for massaging the hands), and at least one spacing maintaining device 8 can be connected to the handrail.

[0058] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A massage chair frame, comprising a backrest (2), a seat frame (3), and a guide device (P), wherein the backrest (2) adjusts its treatment angle with the seat frame (3) by rotating about a predetermined axis, and a gap (S) is formed between the backrest (2) and the seat frame (3), the guide device (P) comprising a backrest guide rail (P1), a seat frame guide rail (P2), and a connecting guide rail (P3), the connecting guide rail (P3) being disposed at the gap (S) to connect the backrest guide rail (P1) and the seat frame guide rail (P2); characterized in that, The chair frame also includes: Deformation regulation mechanism (5) is used to regulate the elastic deformation generated by the connecting guide rail (P3) to provide a smooth track for the massage mechanism (T) of the massage machine at the interval gap (S); The deformation regulation mechanism (5) includes a first elastic plate (6), a second elastic plate (7), and a spacing maintaining device (8), wherein the first elastic plate (6) and the second elastic plate (7) are arranged in parallel, and the spacing maintaining device (8) is adapted to keep the spacing between the first elastic plate (6) and the second elastic plate (7) substantially the same at the gap (S). The spacing maintaining device (8) includes a spacing member (8A), an upper support member (8B) and a lower support member (8C). The first elastic plate (6) is sandwiched between the spacing member (8A) and the upper support member (8B), and the second elastic plate (7) is sandwiched between the spacing member (8A) and the lower support member (8C). The upper and lower ends of the spacing member (8A) are respectively adapted to press against the first elastic plate (6) and the second elastic plate (7) to maintain the spacing between them.

2. The chair frame of claim 1, wherein The spacing maintaining device (8) consists of at least two sets, which are arranged at intervals in the extension direction of the connecting guide rail, one set being connected to the back frame (2) and the other set being connected to the seat frame (3).

3. The chair frame according to claim 1 or 2, characterized in that The deformation regulation mechanism (5) includes a first spacing holding device (8-1), a second spacing holding device (8-2), and a lower base plate (M1). The first spacing holding device (8-1) and the second spacing holding device (8-2) are both disposed on the lower base plate (M1), and the lower base plate (M1) is movably connected to the frame (3) by a first connecting rod (L1).

4. A chair frame according to claim 2 or 3, c h a r a c t e r i s e d in that The deformation regulation mechanism (5) includes a third spacing holding device (8-3), a fourth spacing holding device (8-4), and a central base plate (M2). The third spacing holding device (8-3) and the fourth spacing holding device (8-4) are both disposed on the central base plate (M2), which is movably connected to the back frame (2) by a second connecting rod (L2).

5. The chair frame of claim 4, wherein, The deformation regulation mechanism (5) further includes a fifth spacing holding device (8-5) and an upper substrate (M3). The fifth spacing holding device (8-5) is disposed on the upper substrate (M3), and the upper substrate (M3) is movably connected by a third link (L3) and a second link (L2).

6. The chair frame of claim 1, wherein, The spacing maintaining device (8) further includes a base plate, on which the spacing member (8A), the upper support member (8B) and the lower support member (8C) are rotatably engaged.

7. The chair frame of claim 1 or 6, wherein The top surface of the spacer member (8A) is configured as an upwardly convex arc surface to adapt to the elastic deformation of the first elastic plate (6), and its bottom surface is configured as a downwardly convex arc surface to adapt to the elastic deformation of the second elastic plate (7).

8. The chair frame of claim 1 or 6, wherein, Both the upper support (8B) and the lower support (8C) are configured in the shape of rollers.

9. The chair frame of claim 1, wherein, The seat guide rail (P2) and the seat (3) slide in the front-to-back direction.

10. The chair frame of claim 9, wherein, The first elastic plate (6) is fixed to the back frame (2) and slides in the front-back direction with the seat frame (3).

11. The chair frame of claim 10, wherein, The displacement of the first elastic plate (6) relative to the seat frame (3) is greater than the displacement of the seat frame guide rail (P2) relative to the seat frame (3).

12. The chair frame of claim 1, wherein, The two ends of the second elastic plate (7) are fixed to the back frame (2) and the seat frame (3), respectively.

13. The chair frame of claim 1, wherein, The connecting guide rail (P3) has an extension (P31) extending between the second elastic plate (7) and the spacer (8A), the extension (P31) being in close contact with the second elastic plate (7), and the spacer (8A) pressing against the extension (P31).

14. A full-body massager, comprising a chair frame and a massage mechanism (T), the chair frame having a guiding device for guiding the massage mechanism (T) to move along the user's back and seat, characterized in that, The chair frame is configured as described in any one of claims 1-13.

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