Massage chair

Abstract

The utility model discloses a massage chair which comprises a chair frame, a guide rail and a massage device, the massage device is configured to be driven to walk along the guide rail so as to massage a user, the chair frame comprises a chair back and a seat part, the guide rail comprises a driving part and at least one fixing piece, and the driving part is used for driving the massage device to walk. The driving part comprises at least two sections of racks, one section of rack is arranged on the chair back to guide the massage device to correspond to the back, and the other section of rack is arranged on the seat part to guide the massage device to correspond to the buttocks; the fixing pieces are configured to connect the two adjacent racks, so that the driving parts are continuously arranged; wherein the axis of the fixing piece is located between the meshing teeth at the ends of the two adjacent racks and is close to or located on the indexing lines of the racks, so that when the chair back is turned over relative to the seat part, the tooth pitch variation between the meshing teeth at the ends of the two adjacent racks is small; compared with the prior art, the scheme can ensure that the massage device is smoothly meshed with the rack.

Description

Technical Field

[0001] This utility model relates to the field of massage, and in particular to a massage chair. Background Technology

[0002] As people's living standards continue to improve, massage chairs are becoming increasingly popular as a health care device. Massage chairs are a type of health care equipment developed based on physics, bionics, and bioelectricity. Due to their convenient use and significant massage effect, they are favored by users because they can be used to massage themselves anytime in daily life.

[0003] Existing massage chairs include a chair frame, a guide rail, and a massage device. The massage device is driven to move along the guide rail to perform a massage on the user. The chair frame includes a backrest and a seat, and the guide rail includes multiple rack segments that extend from the backrest to the seat.

[0004] However, when the angle between the backrest and the seat is adjusted, the rack will deform, which will cause a large change in the pitch of the adjacent meshing teeth in two adjacent racks. This will cause a step difference in the guide rail at the joint, resulting in abnormal noise and vibration when the massage device moves to the joint. Summary of the Invention

[0005] To solve the above problems, this utility model provides a massage chair that ensures that the massage device will not make abnormal noises or vibrate when it moves to the seam.

[0006] This utility model provides a massage chair, including a chair frame, a guide rail, and a massage device. The massage device is configured to move along the guide rail under drive to perform a massage on the user. The chair frame includes a backrest and a seat. The guide rail includes:

[0007] A drive unit for driving the movement of the massage device, the drive unit including at least two rack segments, one rack segment disposed on the backrest to guide the massage device to align with the back, and the other rack segment disposed on the seat to guide the massage device to align with the buttocks; and

[0008] At least one fixing member is configured to connect two adjacent racks so that the drive units are arranged continuously.

[0009] The axis of the fixing member is located between adjacent meshing teeth of two adjacent racks, and is near or located on the indexing line of the rack, so that when the chair back is flipped relative to the seat, the change in tooth pitch between adjacent meshing teeth of two adjacent racks is small.

[0010] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0011] Optionally, the rack disposed on the backrest and the rack disposed on the seat are smoothly connected by at least one transition rack.

[0012] Optionally, two adjacent racks can pivot between each other via the fixing member, and the rotation angle is less than 15 degrees.

[0013] Optionally, the rotation axis of two adjacent racks is set to coincide with the axis of the corresponding fixing member.

[0014] Optionally, the rotation angle between two adjacent racks is 10 degrees.

[0015] Optionally, in two adjacent racks, one rack is fixedly connected to a first fixing plate, and the fixing member passes through the first fixing plate and the other rack in sequence to connect the two adjacent rack segments.

[0016] Optionally, in two adjacent racks, one rack is fixedly connected to a first fixing plate, and the other rack is fixedly connected to a second fixing plate. The fixing member passes through the first fixing plate, the second fixing plate, and one of the racks in sequence to connect the two adjacent rack segments.

[0017] Optionally, in two adjacent racks, one is provided with a rotating block, and the other is provided with a rotating groove that cooperates with the rotating block.

[0018] Optionally, a limiting mechanism is provided between two adjacent racks, the limiting mechanism including two pairs of limiting parts located on both sides of the fixing member;

[0019] The two limiting parts in the same pair cooperate with each other to limit the rotation amplitude of adjacent racks.

[0020] Optionally, for the same pair of limiting parts, the two limiting parts are located on adjacent racks respectively, and the two limiting parts can fit together to limit the rotation amplitude of the adjacent racks.

[0021] This utility model discloses a massage chair in which, when the backrest is flipped relative to the seat, the fixing component ensures that the pitch change between adjacent meshing teeth in two adjacent racks is small, avoiding any step difference in the guide rail at the joint, so that the massage device will not make any abnormal noise or vibration when it moves to the joint, and ensuring that the massage device and the rack mesh smoothly. Attached Figure Description

[0022] Figure 1 A schematic diagram of a massage chair according to an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of an embodiment of the present utility model.

[0024] Figure 3 A schematic diagram of a guide rail according to an embodiment of this utility model.

[0025] Figure 4 A schematic diagram of a guide rail structure according to an embodiment of this utility model.

[0026] Figure 5 Exploded view of the guide rail structure connection according to an embodiment of this utility model

[0027] Figure 6 An enlarged structural view of an embodiment of this utility model.

[0028] Figure 7 An enlarged structural view of an embodiment of this utility model.

[0029] The annotations in the figure are explained as follows:

[0030] 100. Massage chair;

[0031] 10. Chair frame; 11. Chair back; 12. Seat; 13. Base; 14. Electric push rod;

[0032] 20. Guide rail; 21. Drive unit; 211. Rack; 2111. Base; 2112. Meshing teeth; 212. Transition rack; 213. Rotating block; 214. Rotating groove; 215. Limiting mechanism; 2151. Limiting part; 22. Fixing member; 23. First fixing plate; 24. Second fixing plate. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] like Figures 1 to 7 As shown, this utility model provides a massage chair 100, including a chair frame 10, a guide rail 20, and a massage device. The massage device is configured to move along the guide rail 20 under drive to perform a massage on the user. The chair frame 10 includes a backrest 11 and a seat 12. The guide rail 20 includes a drive unit 21 and at least one fixing member 22. The drive unit 21 is used to drive the movement of the massage device. The drive unit 21 includes at least two racks 211, one rack 211 is disposed on the backrest 11 to guide the massage device to correspond to the back, and the other rack 211 is disposed on the seat 12 to guide the massage device to correspond to the buttocks. The fixing member 22 is configured to connect two adjacent racks 211 so that the drive unit 21 is continuously arranged. The axis of the fixing member 22 is located between adjacent meshing teeth 2112 of two adjacent racks 211 and is adjacent to or located on the indexing line of the rack 211.

[0037] When the backrest 11 flips relative to the seat 12, the pitch change between the meshing teeth 2112 at the ends of adjacent racks 211 is small, preventing any step difference in the guide rail 20 at the joint. This ensures that the massage device will not make any abnormal noises or vibrate when it travels to the joint, and that the massage device and rack 211 will engage smoothly. Furthermore, when the backrest 11 flips relative to the seat 12, it allows the user to lie flat.

[0038] The term "adjacent meshing teeth 2112" in two adjacent racks 211 can be understood as follows: the meshing teeth 2112 at the middle end of one rack 211 mesh with the meshing teeth 2112 at the middle end of the other rack 211. A small variation in the tooth pitch between adjacent meshing teeth 2112 in two adjacent racks 211 means that the maximum tooth pitch between adjacent meshing teeth 2112 in two adjacent racks 211 is less than 1.5 times the tooth pitch of the rack 211, and the minimum tooth pitch between adjacent meshing teeth 2112 in two adjacent racks 211 is greater than 0.8 times the tooth pitch of the rack 211. Preferably, the maximum tooth pitch between adjacent meshing teeth 2112 in two adjacent racks 211 is less than 1.2 times the tooth pitch of the rack 211, and the minimum tooth pitch between adjacent meshing teeth 2112 in two adjacent racks 211 is greater than 0.9 times the tooth pitch of the rack 211.

[0039] In this embodiment, as Figures 1 to 2As shown, the seat 12 supports the user's buttocks; the backrest 11 supports the user's back. The chair frame 10 also includes a base 13; the backrest 11 and the seat are disposed on the base 13. An electric actuator 14 is provided between the backrest 11 and the base 13, one end of the electric actuator 14 is pivotally connected to the base 13, and the other end is pivotally connected to the backrest 11; the electric actuator 14 can push the backrest 11 to deflect the backrest 11 relative to the seat 12.

[0040] In this embodiment, as Figures 1 to 7 As shown, the massage device has a drive wheel; the outer circumference of the drive wheel has a plurality of external teeth spaced apart, each external tooth being able to engage with the meshing teeth 2112 on the rack 211, so as to be able to move along the guide rail 20. The massage device may employ existing technology, which will not be further described here.

[0041] In this embodiment, as Figures 1 to 7 As shown, the guide rail 20 is curved; the guide rail 20 is roughly L-shaped. There are two guide rails 20, which are located on the corresponding sides of the chair frame 10 to make the movement of the massage device more stable.

[0042] In this embodiment, as Figures 1 to 7 As shown, the number of racks 211 is set according to actual needs; for example, the number of racks 211 can be 2, 3, 4, 5, or 6 or more. The extension path of the racks 211 can be adjusted according to the user's body curve, which will not be further elaborated here. Each rack 211 includes a base 2111 and multiple meshing teeth 2112 attached to the base 2111, with the meshing teeth 2112 arranged along the extension path of the rack 211. Each rack 211 is arranged sequentially along the extension path of the guide rail 20; the ends of adjacent racks 211 are either fitted together or spaced apart, so that the gap between the meshing teeth 2112 at the ends of adjacent racks 211 can mesh with the external teeth on the drive wheel.

[0043] In this embodiment, as Figures 3 to 7 As shown, the rack 211 disposed on the backrest 11 and the rack 211 disposed on the seat 12 are smoothly connected by at least one transition rack 212 to ensure stable operation of the massage device. The transition rack 212 is a segment of the rack 211 in the drive unit 21. The number of transition racks 212 is set according to actual needs; for example, the number of transition racks 212 may be one, two, three, or more.

[0044] In this embodiment, as Figures 3 to 7 As shown, the extension path of the transition rack 212 is generally arranged in an arc, so that the connection between the rack 211 disposed on the backrest 11 and the rack 211 disposed on the seat 12 is smoother.

[0045] In this embodiment, as Figures 3 to 7 As shown, adjacent racks 211 pivot between each other via a fixing member 22, with a rotation angle less than 15 degrees. This increases the deformation of the guide rail 20, thus broadening its application scenarios. If the rotation angle between adjacent racks 211 is too large, it increases the variation between the meshing teeth 2112 at the ends of the adjacent racks 211, increasing the distance between the meshing teeth 2112 and preventing the massage device from properly engaging with the racks 211. The rotation axes of the adjacent racks 211 coincide with the axis of the corresponding fixing member 22.

[0046] In this embodiment, as Figures 3 to 7 As shown, after a large number of experimental tests, when the rotation angle between two adjacent racks 211 is 10 degrees, the smoothness of the drive wheel in the massage device moving on the rack 211 will not change significantly; and the guide rail 20 can also achieve the required deformation.

[0047] In order to enable the rotation of two adjacent racks 211; referring to one embodiment, such as Figures 3 to 7 As shown, in two adjacent racks 211, one is provided with a rotating block 213, and the other is provided with a rotating groove 214 that cooperates with the rotating block 213. The rotating block 213 is located at the end of one rack 211, and the rotating groove 214 is located at the end of the other rack 211; when two adjacent racks 211 are connected, the rotating block 213 is located in the rotating groove 214.

[0048] In this embodiment, as Figures 3 to 7 As shown, a limiting mechanism 215 is provided between two adjacent racks 211. The limiting mechanism 215 includes two pairs of limiting portions 2151 located on both sides of the fixing member 22. The two limiting portions 2151 in the same pair cooperate with each other to limit the rotation range of the two adjacent racks 211. For the same pair of limiting portions 2151, the two limiting portions 2151 are respectively located on the two adjacent racks 211, and the two limiting portions 2151 can fit together to limit the rotation range of the two adjacent racks 211. The limiting portion 2151 is the end face of the rack 211; when the two adjacent racks 211 rotate to the limit position, the end faces of the two adjacent racks 211 will abut.

[0049] In this embodiment, as Figures 3 to 7 As shown, the fastener 22 is generally cylindrical in shape; the axis of the fastener 22 is perpendicular to the extension path of the guide rail 20; the fastener 22 is generally located at the junction of two adjacent racks 211, so that the axis of the fastener 22 is located between the meshing teeth 2112 at the ends of the two adjacent racks 211.

[0050] In this embodiment, as Figures 3 to 7As shown, in two adjacent racks 211, one rack 211 is fixedly connected to a first fixing plate 23. A fixing member 22 passes through the first fixing plate 23 and the other rack 211 in sequence to connect the two adjacent rack segments 211. The first fixing plate 23 is fixed to one rack 211 by means of screws, welding, or bonding, and the first fixing plate 23 has a first mounting hole; the other rack 211 has a second mounting hole; the first mounting hole and the second mounting hole correspond to each other so that the fixing member 22 can pass through the first mounting hole and the second mounting hole in sequence.

[0051] In this embodiment, as Figures 3 to 7 As shown, in two adjacent racks 211, one rack 211 is fixedly connected to a first fixing plate 23, and the other rack 211 is fixedly connected to a second fixing plate 24. A fastener 22 passes sequentially through the first fixing plate 23, the second fixing plate 24, and one of the racks 211 to connect the two adjacent rack segments 211. The first fixing plate 23 is fixed to one of the racks 211 by screws, welding, or bonding, and has a first mounting hole. The second fixing plate 24 is fixed to the other rack 211 by screws, welding, or bonding, and has a second mounting hole. The other rack 211 also has a third mounting hole. The first mounting hole, the second mounting hole, and the third mounting hole correspond to each other, allowing the fastener 22 to pass sequentially through the first mounting hole, the second mounting hole, and the third mounting hole.

[0052] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0053] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this utility model.

Claims

1. A massage chair, comprising a chair frame, a guide rail, and a massage device, the massage device being configured to move along the guide rail in a driven manner to perform a massage on a user, the chair frame comprising a backrest and a seat, characterized in that, The guide rail includes: A drive unit for driving the movement of the massage device, the drive unit including at least two rack segments, one rack segment disposed on the backrest to guide the massage device to align with the back, and the other rack segment disposed on the seat to guide the massage device to align with the buttocks; and At least one fixing member is configured to connect two adjacent racks so that the drive units are arranged continuously. The axis of the fixing member is located between adjacent meshing teeth of two adjacent racks, and is near or located on the indexing line of the rack, so that when the chair back is flipped relative to the seat, the change in tooth pitch between adjacent meshing teeth of two adjacent racks is small.

2. A massage chair according to claim 1, characterized in that, The rack disposed on the backrest and the rack disposed on the seat are smoothly connected by at least one transition rack.

3. A massage chair according to claim 2, characterized in that, The two adjacent racks pivot between each other via the fixing member, and the rotation angle is less than 15 degrees.

4. A massage chair according to claim 3, characterized in that, The rotation axes of two adjacent racks are set to coincide with the axis of the corresponding fixed component.

5. A massage chair according to claim 3, characterized in that, The rotation angle between two adjacent racks is 10 degrees.

6. A massage chair according to claim 3, 4, or 5, characterized in that, In two adjacent racks, one rack is fixedly connected to a first fixing plate, and the fixing member passes through the first fixing plate and the other rack in sequence to connect the two adjacent rack segments.

7. A massage chair according to claim 6, characterized in that, In two adjacent racks, one rack is fixedly connected to a first fixing plate, and the other rack is fixedly connected to a second fixing plate. The fixing member passes through the first fixing plate, the second fixing plate, and one of the racks in sequence to connect the two adjacent rack segments.

8. A massage chair according to claim 3, 4, or 5, characterized in that, In two adjacent racks, one is provided with a rotating block, and the other is provided with a rotating groove that cooperates with the rotating block.

9. A massage chair according to claim 8, characterized in that, A limiting mechanism is provided between two adjacent racks, the limiting mechanism including two pairs of limiting parts located on both sides of the fixing member; The two limiting parts in the same pair cooperate with each other to limit the rotation amplitude of adjacent racks.

10. A massage chair according to claim 9, characterized in that, For the same pair of limiting parts, the two limiting parts are located on adjacent racks respectively, and the two limiting parts can fit together to limit the rotation amplitude of the adjacent racks.

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