Seat width adjustment device of massage chair and massage chair

Abstract

A seat width adjustment device for a massage chair and a massage chair, used to adjust the position of a side panel relative to a chair frame, the chair frame is provided with a massage movement and a movement guide rail, the massage movement can reciprocate on the movement guide rail, including a width adjustment guide rail, the width adjustment guide rail is arranged on the chair frame along the width direction, a sliding member is arranged on the side panel, the sliding member reciprocates on the width adjustment guide rail to adjust the position of the side panel relative to the chair frame; and also includes a drive assembly and a transmission part, one end of the transmission part is connected to the drive assembly, and the other end is connected to the side panel, and the drive assembly can drive the side panel to move through the transmission part. The present invention can realize the free adjustment of the seat width to meet the personalized needs of different groups of people and improve the user experience.

Description

Technical Field

[0001] The invention relates to the field of massage chairs, in particular to a seat width adjustment device for massage chairs and the massage chair. Background Art

[0002] As a health care product that improves blood circulation and relieves body aches and fatigue, massage chairs are popular among the general public.

[0003] Common massage chairs usually include a backrest component, a left side panel component, a right side panel component, a seat frame, etc., wherein the left side panel component and the right side panel component are respectively fixed on the left and right sides of the backrest of the massage chair. The left side panel component and the right side panel component of the massage chair cannot move freely, that is, the seat width of the massage chair is a fixed value and cannot be freely adjusted. Therefore, the seat width of the massage chair cannot match the users of massage chairs of different body shapes, resulting in a poor massage experience for the users of the massage chair. Summary of the invention

[0004] The main purpose of the present invention is to overcome the defect that the seat width of the massage chair in the prior art cannot be freely adjusted, and to provide a seat width adjustment device and a massage chair, which can freely adjust the seat width to meet the personalized needs of different groups of people.

[0005] The present invention adopts the following technical solution:

[0006] A seat width adjustment device for a massage chair, used for adjusting the position of a side panel relative to a chair frame, wherein a massage movement and a movement guide rail are provided on the chair frame, and the massage movement can reciprocate on the movement guide rail, and is characterized in that:

[0007] It comprises a width adjustment rail, which is arranged on the chair frame along the width direction, and a sliding member is arranged on the side panel, and the sliding member reciprocates on the width adjustment rail to adjust the position of the side panel relative to the chair frame;

[0008] It also includes a driving assembly and a transmission part, one end of the transmission part is connected to the driving assembly, and the other end is connected to the side plate, and the driving assembly can drive the side plate to move through the transmission part.

[0009] Furthermore, it also includes a limiting mechanism and an elastic mechanism. The limiting mechanism is arranged between the other end of the side panel and the chair frame and is provided with a plurality of gears to achieve multi-gear limiting; the elastic mechanism is connected between the chair frame and the side panel.

[0010] Furthermore, the limiting mechanism includes a limiting plate, a mounting plate, a claw member and a first elastic member; the limiting plate is fixed to the outer side of the chair frame and is provided with a plurality of shift grooves distributed along the width direction; the mounting plate is connected and fixed to the side plate; the claw member is rotatably mounted on the mounting plate, and a head is provided at one end of the claw member so as to move between different shift grooves when the side plate moves outward; the first elastic member is connected between the other end of the claw member and the mounting plate so that the head of the claw member enters the shift groove.

[0011] Furthermore, the gear slot includes a first stop surface and a first inclined surface, the first stop surface extends in a direction perpendicular to the width direction, one end of the first inclined surface is connected to the first stop surface, and the other end extends outwardly in a direction perpendicular to the width direction; the head of the claw member is adapted to the gear slot and is provided with a second stop surface and a second inclined surface, when the side plate moves outward in the width direction, the second inclined surface slides along the first inclined surface to disengage from the gear slot, and the second stop surface abuts against the first stop surface to prevent the side plate from moving inward in the width direction to achieve limiting.

[0012] Furthermore, the limit plate is also provided with an extension portion and a rest groove, the extension portion is located at the outermost side of the plurality of gear grooves and extends outwardly in a direction perpendicular to the width direction so that the head of the claw member sliding along it can be disengaged from the gear groove and rotated to a maximum angle to release the limit; the rest groove is located at the innermost side of the plurality of gear grooves; the elastic mechanism drives the limit mechanism of the contact limit to return to the position until the head of the claw member rests against the rest groove.

[0013] Furthermore, a first limiting column is arranged near the head of the claw member; the limiting mechanism also includes a hook member and a second elastic member, the hook member is rotatably connected to the mounting plate and one end of the hook member is provided with a hook groove to hook the first limiting column when the claw member is rotated to a set maximum angle; a second limiting column is also arranged on the limiting plate, and when the limiting mechanism returns to its position, the second limiting column pushes the hook member to rotate so that the first limiting column is disengaged from the hook, and the second elastic member is connected between the other end of the hook member and the mounting plate.

[0014] Furthermore, a locking plate is provided on the side panel, and a plurality of locking holes distributed along the width direction are provided on the locking plate; a locking assembly is included, and the locking assembly is relatively fixed to the chair frame and is provided with a movable locking piece to be inserted into the corresponding locking hole after the seat width adjustment is completed to lock the side panel.

[0015] Furthermore, the transmission part is provided with a tooth portion and a guide groove, the tooth portion is located on the side of the transmission part opposite to the driving assembly and extends along the width direction, the guide groove extends along the width direction and is penetrated by a guide column fixed relative to the chair frame; the driving assembly adopts a driving wheel, the driving gear is meshed with the tooth portion, or the driving assembly adopts a motor and a gear set, and the gear set is transmission-connected between the motor and the tooth portion.

[0016] A massage chair comprises a chair frame, a seat frame mechanism and two side panels, wherein the chair frame is mounted on the seat frame mechanism, and the two side panels are respectively arranged on the left and right sides of the chair frame. The massage chair also comprises a seat width adjustment device, and the driving component drives the two side panels to move toward or away from the chair frame along the width direction to adjust the seat width.

[0017] Furthermore, the chair frame includes a first frame and a first outer shell, the width adjustment rails are respectively provided on the outer sides of the left and right sides of the first frame in the width direction, and the first outer shell cover is provided outside the first frame; the side panel includes a second frame and a second outer shell; the second frame is provided with the sliding member to slide with the width adjustment rail, and the second outer shell cover is provided outside the second frame.

[0018] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the side panels are arranged to be movable inward or outward along the width direction relative to the chair frame, and the seat width is adjusted by driving the side panels to move along the width direction through a driving assembly to meet the personalized needs of different groups of people and improve the user experience.

[0020] 2. In the present invention, a limiting mechanism and an elastic mechanism are provided. The limiting mechanism is used to divide the movement of the side panel into several gears and realize multi-gear limiting. The elastic mechanism is used to realize the return of the side panel, so that users can choose according to their needs.

[0021] 3. In the present invention, the limiting mechanism includes a limiting plate, a mounting plate, a claw member and a first elastic member. The limiting plate is provided with a plurality of gear slots. The claw member is provided with a head and cooperates with the first elastic member to move and switch between different gear slots when the side plate moves outward, which is easy to operate. The gear slot includes a first stop surface and a first inclined surface. The head of the claw member is adapted to the gear slot and is provided with a second stop surface and a second inclined surface. When the side plate moves outward in the width direction, the second inclined surface slides along the first inclined surface to disengage from the gear slot. The second stop surface abuts against the first stop surface to prevent the side plate from moving inward in the width direction to achieve limiting, thereby adjusting the gear position according to the set sequence.

[0022] 4. In the present invention, an extension portion and a supporting groove are further provided on the limit plate, and a plurality of gear grooves are located between the extension portion and the supporting groove. The claw member slides along the extension portion of the limit plate with the head of the claw member to disengage from the gear groove and rotate to the maximum angle to release the limit, and cooperates with the elastic mechanism to drive the limit mechanism back to the position until the head abuts against the supporting groove, so as to facilitate the next seat width adjustment operation.

[0023] 5. In the present invention, a first limiting column is arranged on the claw member, and also includes a hook member. When the claw member rotates to a set maximum angle, the first limiting column is hooked by the hook groove of the hook member to limit its continued rotation; when the limiting mechanism returns, the hook member is pushed to rotate by the second limiting column on the limiting plate so that the first limiting column of the claw member is separated from the hook to realize the return. The various components are linked and cooperated to realize the return of the limiting mechanism, and the structure is ingenious.

[0024] 6. In the present invention, a locking plate is provided on the side panel, and a movable locking member provided by the locking assembly is inserted into the corresponding locking hole to lock the side panel after the seat width is adjusted, thereby ensuring the stability and reliability of the gear position of the side panel; when the seat width needs to be adjusted, the side panel is unlocked by disengaging the locking member from the locking hole, which is simple to operate.

[0025] 7. In the present invention, the transmission part is provided with a tooth part and a guide groove, and the movement of the transmission part is guided by the guide groove; the driving component adopts a driving wheel that meshes with the tooth part to realize manual operation, or the driving component adopts a motor and a gear set, which is connected between the motor and the tooth part through the gear set transmission to realize electric control, both of which can realize the control of the two side plates to move synchronously the same distance and realize the free adjustment of the seat width. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of the device of the present invention;

[0027] Figure 2 It is the coordination diagram between the driving assembly and the transmission part;

[0028] Figure 3 It is the structural diagram of the limiting mechanism;

[0029] Figure 4 is a back view of the device of the present invention;

[0030] Figure 5 This is the first structural diagram;

[0031] Figure 6 It is the coordination diagram between the driving wheel and the transmission part;

[0032] Figure 7 This is the main structural diagram of the side panel;

[0033] Figure 8 for Figure 5 A partial enlarged view of

[0034] Fig. 9 This is the back view of the side panel;

[0035] Fig.10 This is a front view of the massage chair of the present invention;

[0036] Fig.11 This is the side panel structure diagram;

[0037] Fig.12 This is the main structural view of the massage chair;

[0038] Fig.13 The working state of the limiting mechanism of the present invention Figure 1 ;

[0039] Fig.14 The working state of the limiting mechanism of the present invention Figure 2 ;

[0040] Fig.15 The working state of the limiting mechanism of the present invention Figure 3 ;

[0041] Fig.16 The working state of the limiting mechanism of the present invention Figure 4 ;

[0042] Fig.17 This is a structural diagram of another embodiment of the present invention;

[0043] Fig.18 A first structural diagram of another embodiment of the present invention;

[0044] Fig.19 A diagram showing the cooperation between a driving assembly and a transmission part according to another embodiment of the present invention;

[0045] Fig. 20 This is a structural diagram of a side panel according to another embodiment of the present invention.

[0046] in:

[0047] 10. Chair frame; 11. First frame; 12. First shell; 13. Guide column; 14. Width adjustment rail; 20. Side plate; 21. Second frame; 22. Second shell; 23. Transmission unit; 24. Gear unit; 25. Guide groove; 26. Locking plate; 27. Locking hole; 28. Sliding member; 30. Driving assembly; 31. Driving wheel; 32. Motor; 33. Gear set; 40. Limiting mechanism; 41. Limiting plate; 41a. Second limiting column; 42. Mounting plate; 43. Claw member ; 43a, head; 43b, second stop surface; 43c, second inclined surface; 43d, first limiting column; 44, first elastic member; 45, gear slot; 45a, first stop surface; 45b, first inclined surface; 46, extension portion; 47, abutment slot, 48, hook member; 48a, hook slot; 49, second elastic member; 50, elastic mechanism; 60, locking assembly; 61, locking member; 62, sleeve; 63, third elastic member; 64, make way hole; 65, operating portion; 70, seat frame mechanism.

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. DETAILED DESCRIPTION

[0049] The present invention is further described below through specific implementation modes.

[0050] See also Figures 1 to 16 A seat width adjustment device for a massage chair is used to adjust the position of a side panel 20 relative to a chair frame 10, and the side panel 20 is arranged to be movable relative to the chair frame 10 in the width direction. It includes a width adjustment rail 14, which is arranged on the chair frame 10 along the width direction. A sliding member 28 is provided on the side panel 20, and the sliding member 28 reciprocates on the width adjustment rail 14 to adjust the position of the side panel 20 relative to the chair frame 10. It also includes a driving assembly 30 and a transmission part 23, one end of the transmission part 23 is connected to the driving assembly 30, and the other end is connected to the side panel 20. The driving assembly 30 is controlled to drive the transmission part 23 to move and drive the side panel 20 to move in the width direction to adjust the seat width.

[0051] The driving component 30 can be manually controlled to drive the transmission part 23. For example, the driving component 30 adopts a driving wheel 31, and the transmission part 23 is provided with a tooth portion 24. The tooth portion 24 is located on the side of the transmission part 23 relative to the driving component 30 and extends along the width direction. The tooth portion 24 is driven to move along the width direction by controlling the driving wheel 31 to rotate, thereby realizing the driving side panel 20 to move inward or outward relative to the chair frame 10. Inward means getting closer to the chair frame 10, and outward means moving away from the chair frame 10.

[0052] In order to guide the movement of the transmission part 23, a guide groove 25 is also provided on the transmission part 23. The guide groove 25 extends along the width direction. A guide column 13 relatively fixed to the chair frame 10 is also passed through the guide groove 25. The movement of the transmission part 23 is guided by the cooperation between the guide groove 25 and the guide column 13.

[0053] In this embodiment, a limiting mechanism 40 and an elastic mechanism 50 are also included. The limiting mechanism 40 is arranged between the other end of the side panel 20 in the width direction and the chair frame 10. The limiting mechanism 40 is provided with a plurality of gears and realizes multi-gear limiting, that is, the adjustment range of the seat width is divided into a plurality of gears by the limiting mechanism 40, and the limiting of each gear can be realized. Among them, the gears include two, three, four or even five, etc., which can be set according to actual needs. The elastic mechanism 50 is connected between the chair frame 10 and the side panel 20. When the side panel 20 moves outward in the width direction relative to the chair frame 10, the elastic mechanism 50 is stretched and stored, and the elastic mechanism 50 can provide elastic force for the side panel 20 to move inward and return to its position in the width direction. The elastic mechanism 50 may include at least one spring.

[0054] Specifically, the limiting mechanism 40 includes a limiting plate 41, a mounting plate 42, a claw member 43, a first elastic member 44, etc. The limiting plate 41 is fixed to the outside of the chair frame 10 and is provided with a plurality of gear slots 45 distributed along the width direction, each gear slot 45 is a gear, and the gear slot 45 has an opening. The mounting plate 42 is connected and fixed to the side plate 20, and the claw member 43 is rotatably mounted on the mounting plate 42. One end of the claw member 43 is provided with a head 43a, and the head 43a is opposite to the opening of the gear slot 45. When the side plate 20 moves outward, the mounting plate 42 is driven to move, and the head 43a of the claw member 43 on the mounting plate 42 also moves between different gear slots 45. The first elastic member 44 is connected between the other end of the claw member 43 and the mounting plate 42, and the first elastic member 44 is configured to enable the head 43a of the claw member 43 to enter the gear slot 45.

[0055] Further, the gear slot 45 includes a first stop surface 45a and a first inclined surface 45b. The first stop surface 45a extends in a direction perpendicular to the width direction. One end of the first inclined surface 45b is connected to the first stop surface 45a, and the other end extends outwardly in a direction perpendicular to the width direction. The gear slot 45 is similar to a V-shape. The head 43a of the claw member 43 is adapted to the gear slot 45 and is provided with a second stop surface 43b and a second inclined surface 43c. When the side plate 20 moves outward in the width direction to switch between different gears, the second inclined surface 43c of the head 43a slides along the first inclined surface 45b to disengage the gear slot 45 and enter the next gear slot 45. The second stop surface 43b abuts against the first stop surface 45a to prevent the side plate 20 from moving inward in the width direction to achieve the limit of the gear.

[0056] In this embodiment, in order to enable the limiting mechanism 40 to move back inward along the width direction, an extension portion 46 and a support groove 47 are further provided on the limiting plate 41. The extension portion 46 is located at the outermost side of the plurality of gear grooves 45 and extends outwardly along a direction perpendicular to the width direction. When the head 43a moves to the extension portion 46, the head 43a can slide along the extension portion 46 to disengage from the gear groove 45 and rotate to the set maximum angle to release the limit; the support groove 47 is located at the innermost side of the plurality of gear grooves 45, which can be used as the starting position, that is, the gear position with the smallest seat width. The plurality of gear grooves 45 are located between the support groove 47 and the extension portion 46, and the gear groove 45 where the extension portion 46 is located is the gear position with the largest seat width. When the limiting mechanism 40 moves outwardly in the width direction until the head 43a reaches the extension 46 and slides and rotates to a larger angle, the elastic mechanism 50 drives the contact-limited limiting mechanism 40 to move back inwardly in the width direction until the head 43a of the claw member 43 abuts against the abutting groove 47. The shift groove 45 near the abutting groove 47 is not provided with a first stop surface 45a to communicate with the abutting groove 47.

[0057] Furthermore, in order to limit the maximum rotation angle of the head 43a of the claw member 43, a first limiting column 43d is provided on the head 43a, and the first limiting column 43d extends in a direction perpendicular to the mounting plate 42. The limiting mechanism 40 also includes a hook member 48 and a second elastic member 49, the hook member 48 is rotatably connected to the mounting plate 42 and one end of which is provided with a hook groove 48a, and is configured to hook the first limiting column 43d when the claw member 43 rotates to a set maximum angle, thereby limiting the claw member 43. A second limiting column 41a is also provided on the limiting plate 41, and the second limiting column 41a and a plurality of gear slots 45 are spaced apart from each other in front and back, and is configured to push the hook member 48 to rotate so that the first limiting column 43d is separated from the hook to end the limiting of the claw member 43 by the hook member 48 when the limiting mechanism 40 returns to its original position. The second elastic member 49 is connected between the other end of the hook member 48 and the mounting plate 42 , and is used to drive the hook member 48 to return to its original position when the hook member 48 leaves the second limiting column 41 a .

[0058] In this embodiment, a locking plate 26 is also provided on the side plate 20, and a plurality of locking holes 27 are provided on the locking plate 26 along the width direction, and the number of the locking holes 27 may correspond to the number of gears. A locking assembly 60 is also included, and the locking assembly 60 is relatively fixed to the chair frame 10 and is provided with a movable locking member 61, and the locking member 61 is used to insert or disengage the locking hole 27 to lock or unlock the side plate 20, that is, the side plate 20 cannot be moved along the width direction to adjust the seat width after being locked. When the seat width is to be adjusted, the locking member 61 needs to be manipulated to disengage the locking hole 27 first.

[0059] In practical applications, the locking assembly 60 can be implemented by a latch structure similar to a door. For example, it includes a sleeve 62 and a third elastic member 63. The sleeve 62 is open on one side relative to the locking hole 27, and a clearance hole 64 is provided on the outer periphery of the sleeve 62. The locking member 61 is inserted into the sleeve 62 and the end thereof passes through the opening. The locking member 61 is also provided with an operating portion 65, which passes through the clearance hole 64. The third elastic member 63 is pressed against the inner wall of the locking member 61 and the sleeve 62 away from the opening. The third elastic member 63 drives the end of the locking member 61 to insert into the locking hole 27. The locking member 61 is unlocked by operating the operating portion 65 to move out of the locking hole 27.

[0060] Based on this, the present invention also proposes a massage chair, including a chair frame 10, a seat frame mechanism 70, two side panels 20 and the seat width adjustment device of the above-mentioned massage chair. The chair frame 10 is installed on the seat frame mechanism 70, and the two side panels 20 are respectively arranged on the left and right sides of the chair frame 10. The two side panels 20 have the same structure and are symmetrically arranged. The chair frame 10 is provided with a massage movement and a movement guide rail, and the massage movement can reciprocate on the movement guide rail. The driving component 30 drives the two side panels 20 to move toward or away from each other along the width direction relative to the chair frame 10 to adjust the seat width. The massage chair may also include other massage devices, which will not be repeated here.

[0061] The chair frame 10 includes a first frame 11 and a first shell 12. The outer sides of the left and right sides of the first frame 11 are respectively provided with width adjustment rails 14 extending in the width direction. The first shell 12 is covered outside the first frame 11. The side panel 20 includes a second frame 21 and a second shell 22. The second frame 21 is provided with a sliding member 28 to slide with the width adjustment rail 14. The second shell 22 is covered outside the second frame 21. Two or three width adjustment rails 14 are provided on the left or right side of the first frame 11. Each width adjustment rail 14 is arranged in parallel and spaced apart. The number of sliding members 28 on the corresponding side panel 20 corresponds to the number of width adjustment rails 14. The sliding member 28 can be a roller. The number of elastic mechanisms 50 corresponds to the number of side panels 20. The elastic mechanism 50 is connected between the first frame 11 and the second frame 21.

[0062] In this embodiment, three width adjustment rails 14 and three sliding members 28 are used as an example, wherein two width adjustment rails 14 are distributed front and back, and another width adjustment rail 14 and a limit plate 41 are located between the two width adjustment rails 14. Two sliding members 28 are located at the front and back sides of the second frame 21, and another sliding member 28 is located in the middle, and the mounting plate 42 is also located in the middle of the second frame 21.

[0063] Taking the three gear slots 45 as an example, in the initial state, under the action of the elastic mechanism 50, the head 43a of the claw member 43 of the side plate 20 abuts against the abutting slot 47 of the limit plate 41, that is, the side plate 20 stays at the position closest to the chair frame 10, which is set as the first gear position, see Fig.13 The locking assembly 60 locks the side panel 20 .

[0064] When the seat width is to be adjusted, the locking assembly 60 is operated to unlock the side plate 20, and then the driving wheel 31 is controlled to rotate. The driving wheel 31 drives the two side plates 20 to move in opposite directions along the width direction until the head 43a of the claw member 43 is just inserted into the first gear slot 45, and the stationary position of the side plate 20 is the second gear position; the side plate 20 is driven to continue to move until the head 43a of the claw member 43 is separated from the first gear slot 45 and enters the second gear slot 45, and the stationary position of the side plate 20 is the third gear position; see Fig.14 and Fig.15 , and so on, when the head 43a of the claw member 43 disengages from the second gear slot 45 and enters the third gear slot 45, the stationary position of the side plate 20 is the fourth gear.

[0065] See also Fig.16 When the control side plate 20 continues to move, the head 43a of the claw member 43 disengages from the third gear slot 45 and slides along the extension portion 46. When the claw member 43 swings to a larger angle, the first limit column 43d pushes the hook and is hooked by the hook slot 48a, that is, the claw member 43 is restricted from rotating; at this time, the side plate 20 returns to its initial state under the action of the elastic mechanism 50, that is, the side plate 20 returns to the first gear position.

[0066] Among them, in the process of the side plate 20 returning from the 4th gear position to the 1st gear position, the hook member 48 contacts the second limit column 41a and is pushed to rotate and swing to a larger angle, so that the first limit column 43d is freed from the constraint of the hook groove 48a, and the hook member 48 returns under the action of the second elastic member 49, and the claw member 43 returns under the action of the first elastic member 44, preparing for the next time the claw member 43 is embedded in the first gear groove 45.

[0067] The gear position of the side plate 20 is adjusted synchronously as needed, and when the adjustment is completed, the locking assembly 60 is operated to lock the side plate 20.

[0068] Another embodiment of the seat width adjustment device and massage chair of the present invention is shown in FIG. Figures 17 to 20 In this embodiment, the structure of the driving assembly 30 is different. The driving assembly 30 uses electric control to drive the transmission part 23 to move, thereby driving the side plate 20 to move inward or outward along the width direction to adjust the seat width. This embodiment does not need to set the limit mechanism 40, and the other structures are the same as the above embodiment.

[0069] Specifically, the driving assembly 30 uses a motor 32 and a gear set 33, the transmission part 23 is provided with a tooth part 24, and the gear set 33 is connected between the motor 32 and the gear. The motor 32 and the gear set 33 drive the transmission part 23 to move so that the two side plates 20 move synchronously by the same distance, thereby freely adjusting the seat width to meet the needs of different users.

[0070] In the present invention, the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. In the description, the directions or positional relationships indicated by "upper", "lower", "left", "right", "front", and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and are not intended to indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present invention. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0071] In addition, in the description of this application, unless otherwise specified, "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0072] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A seat width adjustment device for a massage chair, used for adjusting the position of the side panel of the massage chair relative to the chair frame, the chair frame is provided with a massage movement and a movement guide rail, the massage movement can reciprocate on the movement guide rail, characterized in that: It comprises a width adjustment rail, which is arranged on the chair frame along the width direction, and a sliding member is arranged on the side panel, and the sliding member reciprocates on the width adjustment rail to adjust the position of the side panel relative to the chair frame; It also includes a driving assembly and a transmission part, one end of the transmission part is connected to the driving assembly, and the other end is connected to the side plate, and the driving assembly can drive the side plate to move through the transmission part.

2. A seat width adjustment device for a massage chair as claimed in claim 1, characterized in that: It also includes a limiting mechanism and an elastic mechanism. The limiting mechanism is arranged between the other end of the side panel and the chair frame and is provided with a plurality of gears to achieve multi-gear limiting. The elastic mechanism is connected between the chair frame and the side panel.

3. A seat width adjustment device for a massage chair as claimed in claim 2, characterized in that: The limiting mechanism includes a limiting plate, a mounting plate, a claw member and a first elastic member; the limiting plate is fixed to the outer side of the chair frame and is provided with a plurality of shift grooves distributed along the width direction; the mounting plate is connected and fixed to the side plate; the claw member is rotatably mounted on the mounting plate, and a head is provided at one end of the claw member so as to move between different shift grooves when the side plate moves outward; the first elastic member is connected between the other end of the claw member and the mounting plate so that the head enters the shift groove.

4. A seat width adjustment device for a massage chair as claimed in claim 3, characterized in that: The gear slot includes a first stop surface and a first inclined surface, the first stop surface extends in a direction perpendicular to the width direction, one end of the first inclined surface is connected to the first stop surface, and the other end extends outwardly in a direction perpendicular to the width direction; the head of the claw member is adapted to the gear slot and is provided with a second stop surface and a second inclined surface, when the side plate moves outward in the width direction, the second inclined surface slides along the first inclined surface to disengage from the gear slot, and the second stop surface abuts against the first stop surface to prevent the side plate from moving inward in the width direction to achieve limiting.

5. The seat width adjustment device of a massage chair as claimed in claim 3, characterized in that: The limit plate is also provided with an extension portion and a supporting groove, the extension portion is located at the outermost side of the plurality of gear grooves and extends outwardly in a direction perpendicular to the width direction so that the head of the claw member sliding along it can be disengaged from the gear groove and rotated to the maximum angle to release the limit; the supporting groove is located at the innermost side of the plurality of gear grooves; the elastic mechanism drives the limit mechanism of the contact limit to return to the position until the head of the claw member abuts against the supporting groove.

6. The seat width adjustment device of a massage chair as claimed in claim 3, characterized in that: A first limiting column is arranged near the head of the claw member; the limiting mechanism also includes a hook member and a second elastic member, the hook member is rotatably connected to the mounting plate and one end of the hook member is provided with a hook groove to hook the first limiting column when the claw member is rotated to a set maximum angle; a second limiting column is also arranged on the limiting plate, and when the limiting mechanism returns to its position, the second limiting column pushes the hook member to rotate so that the first limiting column is disengaged from the hook, and the second elastic member is connected between the other end of the hook member and the mounting plate.

7. The seat width adjustment device of a massage chair as claimed in claim 1, characterized in that: The side panel is provided with a locking plate, and the locking plate is provided with a plurality of locking holes distributed along the width direction; a locking assembly is included, and the locking assembly is relatively fixed to the chair frame and is provided with a movable locking piece to be inserted into the corresponding locking hole after the seat width is adjusted to lock the side panel.

8. The seat width adjustment device of a massage chair as claimed in claim 1, characterized in that: The transmission part is provided with a tooth portion and a guide groove, the tooth portion is located on the side of the transmission part opposite to the driving assembly and extends along the width direction, the guide groove extends along the width direction and is penetrated by a guide column fixed relative to the chair frame; the driving assembly adopts a driving wheel, and the driving gear is meshed with the tooth portion, or the driving assembly adopts a motor and a gear set, and the gear set is transmission-connected between the motor and the tooth portion.

9. A massage chair, comprising a chair frame, a seat frame mechanism and two side panels, wherein the chair frame is mounted on the seat frame mechanism, and the two side panels are respectively arranged on the left and right sides of the chair frame, characterized in that: It also includes a seat width adjustment device for a massage chair as described in any one of claims 1 to 8, wherein the drive assembly drives the two side panels to move toward or away from each other along the width direction relative to the chair frame to adjust the seat width.

10. A massage chair as claimed in claim 9, characterized in that: The chair frame includes a first frame and a first outer shell, the width adjustment rails are respectively arranged on the outer sides of the left and right sides of the first frame, and the first outer shell cover is arranged outside the first frame; the side panel includes a second frame and a second outer shell; the second frame is provided with a sliding member to slide with the width adjustment rail, and the second outer shell cover is arranged outside the second frame.

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