Chair back and seat

Abstract

The utility model discloses a chair back and a seat. The chair back comprises a back frame, a first massage assembly and a second massage assembly. The first massage assembly comprises a first driving piece and an air bag, the first driving piece is used for driving the air bag to be inflated and deflated, and the first massage assembly is connected to the back frame. The second massage assembly comprises a second driving piece and a massage block, the second driving piece is used for driving the massage block to move, and the second massage assembly is connected to the back frame. According to the chair back, the first massage assembly with the air bag is arranged in the middle of the chair back, the second massage assemblies with the massage blocks are arranged on the two sides of the first massage assembly in the horizontal direction, and the air bag stretches out and draws back to conduct soft massage on the spine of a user; the massage blocks on the two sides push and knock muscle groups on the two sides of the spine with relatively large force, and the use experience can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of massage chair manufacturing technology, specifically to a chair back and a chair seat. Background Technology

[0002] As living standards improve, people's functional needs for chairs are becoming increasingly diverse, with massage functions being one of the growing demands. Users sit or lie on the chair, and massage components are installed within the chair to massage the user's back. These massage components are typically installed in the backrest to massage the user's back. However, the comfort of the backrest in existing massage chairs is insufficient, and the actual user experience needs improvement. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a chair back that enhances the massage experience.

[0004] This utility model also proposes a seat having the aforementioned backrest.

[0005] A chair back according to a first aspect embodiment of the present invention includes a back frame, a first massage assembly, and a second massage assembly. The first massage assembly includes a first drive member and an airbag; the first drive member is used to drive the airbag to inflate and deflate; the first massage assembly is connected to the back frame. The second massage assembly includes a second drive member and a massage block; the second drive member is used to drive the massage block to move; the second massage assembly is connected to the back frame. Two second massage assemblies are provided, each mounted at one end of the first massage assembly in the horizontal direction, and both second massage assemblies are connected to the first massage assembly on the same side of the back frame.

[0006] The chair back according to the embodiments of this utility model has at least the following beneficial effects: Massage components typically include two types: one is a massage block with multiple motion trajectories, enabling relatively forceful pushing, pressing, and tapping movements on the user's body; the other is a retractable airbag, whose volume changes through inflation and deflation, thereby enabling gentler squeezing and kneading movements on the user's body. Existing massage chairs typically only have a massage component with massage blocks on the chair back, or airbags on both sides for gentler pressure. However, the user's spine is often quite fragile and sensitive, and the back on both sides of the spine has relatively more muscle groups, requiring more kneading. Directly pressing the spine with massage blocks can be uncomfortable for the user. The chair back of this utility model has a first massage component with airbags in the middle of the chair back, and second massage components with massage blocks on both sides of the first massage component in the horizontal direction. The airbags extend and retract to provide a gentler massage to the user's spine, while the massage blocks on both sides provide relatively stronger pushing and tapping movements to the muscle groups on both sides of the spine, effectively improving the user experience.

[0007] According to some embodiments of the present invention, the second driving member is a motor, and the second driving member is used to drive the massage block to rotate.

[0008] According to some embodiments of the present invention, the second massage component includes a worm gear, a worm, and a lead screw. The second driving member is connected to the worm and drives the worm to rotate. The worm gear is connected to the worm and the worm wheel is connected to the lead screw. The other end of the lead screw is connected to the massage block. The second driving member drives the worm to rotate the worm gear, so that the lead screw rotates around its own axis, thereby causing the massage block to move along the axial direction of the lead screw and then rotate.

[0009] According to some embodiments of this utility model, a placement groove is provided in the back frame, and the massage block is disposed in the placement groove. The chair back also includes a damping element. The damping element is disposed in the placement groove and abuts against the outer peripheral surface of the massage block. The massage block is threadedly connected to the lead screw. The frictional force between the massage block and the lead screw is less than the frictional force between the damping element and the massage block. When the damping element abuts against the massage block, the massage block moves along the axial direction of the lead screw. When the damping element disengages from the massage block, the massage block rotates.

[0010] According to some embodiments of the present invention, the central axis of the massage block is inclined toward the central axis of the airbag in a direction away from the back frame.

[0011] According to some embodiments of this utility model, the chair back further includes an adjusting member. The adjusting member is disposed between the second driving member and the worm gear. One end of the adjusting member is rotatably connected to the second driving member, and the adjusting member can rotate relative to the second driving member about a first axis. The other end of the adjusting member is rotatably connected to the worm gear, and the worm gear can rotate relative to the adjusting member about a second axis. One of the first axis and the second axis extends vertically, and the other extends horizontally. The second driving member is disposed within the back frame, and a bearing is fixedly installed within the frame. The end of the worm gear away from the second driving member passes through the bearing, and the central axis of the worm gear is inclined relative to the central axis of the second driving member towards the side closer to the second massage component.

[0012] According to some embodiments of this utility model, the second massage component includes a conical member, which is fixedly connected to the massage block. The back frame has a conical hole, and the conical member is disposed within the conical hole, with a clearance fit between the conical member and the conical hole. The chair back also includes an elastic member, one end of which abuts against the massage block, and the other end of which abuts against the conical hole. The elastic member is used to drive the central axis of the massage block to align with the central axis of the conical hole.

[0013] According to some embodiments of the present invention, the chair back further includes a lifting mechanism. The lifting mechanism is connected to the side of the back frame facing away from the first massage component and the second massage component, and is used to drive the back frame to rise and fall in the vertical direction.

[0014] According to some embodiments of the present invention, the back frame includes a first frame and a second frame, with the first massage component and the second massage component connected to the side of the first frame facing away from the second frame. The chair back also includes a translation mechanism connecting the first frame and the second frame, the translation mechanism being used to drive the second frame to move back and forth.

[0015] The seat according to a second aspect embodiment of the present invention includes the backrest as described in any one of the first aspect embodiments.

[0016] The chair according to the embodiments of this utility model has at least the following beneficial effects: Existing massage chairs typically only have a massage component with massage blocks on the backrest, or airbags on both sides for gentle pressure. However, the user's spine is often quite fragile and sensitive, and the back on both sides of the spine has relatively more muscle groups, requiring more kneading. Directly pressing the spine with massage blocks can be uncomfortable for the user. The chair back of this utility model has a first massage component with airbags in the middle, and second massage components with massage blocks on both sides of the first massage component in the horizontal direction. The airbags extend and retract to provide a gentle massage to the user's spine, while the massage blocks on both sides provide a relatively stronger massage to the muscle groups on both sides of the spine. Using this chair back effectively enhances the massage experience.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a first perspective view of the chair back in one embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the internal structure of the chair back;

[0021] Figure 3 This is a second perspective view of the chair back in one embodiment of the present utility model;

[0022] Figure 4 for Figure 3 A schematic diagram of the internal structure of the chair back;

[0023] Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0024] Figure 6 This is an exploded view of a partial structure of the chair back in one embodiment of the present invention;

[0025] Figure 7 This is a top view of the chair back in one embodiment of the present invention;

[0026] Figure 8 This is an exploded view of the first massage component in one embodiment of the present invention;

[0027] Figure 9This is a partial exploded view of the chair back in one embodiment of the present invention;

[0028] Figure 10 for Figure 9 Enlarged view of region B in the middle;

[0029] Figure 11 This is a schematic diagram of the internal structure of the back of the chair back in one embodiment of the present invention.

[0030] Reference numerals: chair back 100, back frame 101, first massage component 102, second massage component 103, airbag 201, massage block 202, lead screw 203, placement groove 204, damping component 205, first frame 301, second frame 302, lifting mechanism 303, second drive component 501, worm gear 502, adjusting component 503, first axis 504, second axis 505, worm wheel 506, bearing 507, elastic component 601, tapered component 602, tapered hole 603, first drive component 801, translation mechanism 1001. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] refer to Figure 1 , Figure 2 as well as Figure 8 According to a first aspect embodiment of the present invention, a chair back 100 includes a back frame 101, a first massage assembly 102, and a second massage assembly 103. The first massage assembly 102 includes a first drive member 801 and an airbag 201. The first drive member 801 is used to drive the airbag 201 to inflate and deflate. The first massage assembly 102 is connected to the back frame 101. The second massage assembly 103 includes a second drive member 501 and a massage block 202. The second drive member 501 is used to drive the massage block 202 to move. The second massage assembly 103 is connected to the back frame 101. Two second massage assemblies 103 are provided, respectively installed at both ends of the first massage assembly 102 in the horizontal direction, and the second massage assemblies 103 and the first massage assembly 102 are connected to the same side of the back frame 101. Massage components typically include two types: one is a massage block 202 with multiple motion trajectories, which can perform relatively strong pushing, pressing, and tapping movements on the user's body; the other is a retractable airbag 201, which changes volume by inflating and deflating to perform gentler squeezing and kneading movements on the user's body. Existing massage chairs usually only have a massage component with massage blocks 202 on the backrest 100, or airbags 201 on both sides for gentler pressure. However, the user's spine is often quite fragile and sensitive, and the back on both sides of the spine has relatively more muscle groups, requiring more kneading. Directly pressing the spine with massage blocks 202 can cause discomfort for the user. The chair back 100 of this utility model embodiment has a first massage component 102 with an airbag 201 in the middle part, and a second massage component 103 with massage blocks 202 on both sides of the first massage component 102 in the horizontal direction. The airbag 201 extends and retracts to massage the user's spine in a relatively gentle way, while the massage blocks 202 on both sides massage the muscle groups on both sides of the spine with relatively greater force, which can effectively improve the user experience.

[0037] It should be noted that the reference Figure 2 and Figure 8In some embodiments of this utility model, two airbags 201 are arranged in the vertical direction, which can achieve precise massage at different positions of the spine and improve the massage experience.

[0038] refer to Figures 3 to 5 In some embodiments of this utility model, the second driving component 501 is a motor, which drives the massage block 202 to rotate. The motor-driven structure is simple, energy efficient, and operates quietly. Even when installed within the chair back 100, it produces minimal noise and vibration. It allows for adjustment of direction, angle, and speed through various transmission mechanisms, offering high flexibility. Driving the massage block 202 to rotate allows it to effectively massage the user's back, enhancing the user experience. It should be noted that, according to reference... Figure 11 In some embodiments of this utility model, the second driving member 501 uses a dual-head motor. By setting the second driving member 501 in the middle of the backrest 100, the two ends respectively drive the massage blocks 202 in the two second massage components 103 to rotate, thereby improving space utilization and the synchronization rate of massage on both sides, and improving the user experience.

[0039] refer to Figure 4 and Figure 5 In some embodiments of this utility model, the second massage component 103 includes a worm gear 506, a worm 502, and a lead screw 203. A second driving member 501 is connected to the worm 502 and drives the worm 502 to rotate. The worm gear 506 is connected to the worm 502 and to the lead screw 203. The other end of the lead screw 203 is connected to the massage block 202. The second driving member 501 drives the worm to rotate the worm gear 506, so that the lead screw 203 rotates around its own axis, thereby causing the massage block 202 to move along the axial direction of the lead screw 203 and then rotate. The worm gear 506 and worm 502 have a large transmission ratio, which can meet different speed requirements. The transmission is smooth and the noise is low. It will not cause much noise when placed inside the chair back 100. It can also adapt to certain axial and radial deviations, reducing the difficulty of installation and adjustment. It can also change the transmission range, so that the motor can be installed horizontally. At the same time, the worm gear 506 and the lead screw 203 drive the vertically oriented massage block 202 to rotate. It should be noted that the reason why the massage block 202 can move along the axial direction of the lead screw 203 before rotating is that when the massage block 202 is located in the placement groove 204, it will not rotate due to the friction of the placement groove 204 and the damping element 205, so it will move circumferentially. When the massage block 202 continues to extend, it will rotate with the lead screw 203. The return of the massage block 202 can be achieved by the user pressing the massage block 202 with their back during use, causing it to move backward.

[0040] refer to Figures 2 to 6In some embodiments of this utility model, a placement groove 204 is provided in the back frame 101, and the massage block 202 is disposed in the placement groove 204. The chair back 100 also includes a damping element 205. The damping element 205 is disposed in the placement groove 204 and abuts against the outer peripheral surface of the massage block 202. The massage block 202 is threadedly connected to the lead screw 203. The frictional force between the massage block 202 and the lead screw 203 is less than the frictional force between the damping element 205 and the massage block 202. When the damping element 205 abuts against the massage block 202, the massage block 202 moves along the axial direction of the lead screw 203. When the damping element 205 disengages from the massage block 202, the massage block 202 rotates. This design allows the massage block 202 to have diverse movement trajectories. It moves with small amplitude and rotates when the extension stroke is too large. The diverse movement trajectories can realize a richer massage function for the back and improve the user experience. Specifically, when the second driving member 501 drives the lead screw 203 to rotate through the worm gear 506 and worm 502, the massage block 202 is located in the placement groove 204 and its outer periphery abuts against the damping member 205. The friction of the damping member 205 prevents the massage block 202 from rotating. It can only move along the axial direction of the lead screw 203 with the cooperation of the threaded connection with the lead screw 203. When it moves out of the placement groove 204, the massage block 202 disengages from the damping member 205 and can then rotate with the lead screw 203.

[0041] refer to Figure 1 and Figure 7 In some embodiments of this invention, the central axis of the massage blocks 202 is inclined toward the central axis of the airbag 201 in a direction away from the back frame 101. This design allows the second massage components 103 on both sides to be as close as possible to the user's side waist, making a closer fit to the user and improving the massage experience.

[0042] refer to Figure 4 , Figure 5 and Figure 7In some embodiments of this utility model, the chair back 100 further includes an adjusting member 503. The adjusting member 503 is disposed between the second driving member 501 and the worm gear 502. One end of the adjusting member 503 is rotatably connected to the second driving member 501, and the adjusting member 503 can rotate relative to the second driving member 501 around a first axis 504. The other end of the adjusting member 503 is rotatably connected to the worm gear 502, and the worm gear 502 can rotate relative to the adjusting member 503 around a second axis 505. One of the first axis 504 and the second axis 505 extends vertically, and the other extends horizontally. The second driving member 501 is disposed inside the back frame 101, and a bearing 507 is fixedly installed inside the frame. The end of the worm gear 502 away from the second driving member 501 passes through the bearing 507, and the central axis of the worm gear 502 is inclined relative to the central axis of the second driving member 501 towards the side closer to the second massage assembly 103. Adjustment component 503 can achieve relative tilting between the output axis of the second drive component 501 and the axis of the worm gear 502, so that the overall shape of the chair back 100 is as follows: Figure 7 As shown. The specific principle is that the adjusting component 503, being able to rotate in two directions, achieves the effect of a universal joint, allowing for multi-dimensional rotation in both vertical and horizontal directions. This enables the tilt angle of the worm gear 502 to be designed according to requirements, while keeping the second driving component 501 fixed, so that the massage block 202 can have the optimal massage angle, improving the massage experience. The adjusting component 503 can be of various structures such as a cross shaft or a universal joint.

[0043] refer to Figure 6 In some embodiments of this utility model, the second massage component 103 includes a conical member 602, which is fixedly connected to the massage block 202. The back frame 101 has a conical hole 603, and the conical member 602 is disposed within the conical hole 603, with a clearance fit between the conical member 602 and the conical hole 603. The backrest 100 also includes an elastic member 601, one end of which abuts against the massage block 202, and the other end of which abuts against the conical hole 603. The elastic member 601 is used to drive the central axis of the massage block 202 to align with the central axis of the conical hole 603. The clearance fit between the conical member 602 and the conical hole 603 means that there can be a certain degree of oscillation between them. The elastic member 601 allows both ends of the elastic member 601 to be compressed after oscillation. The compressive force causes the elastic member 601 to store energy, thereby driving the conical member 602 to return to its original position, thus achieving the effect of resetting the massage block 202. This allows the second massage component 103 to swing relative to the back frame 101 to a certain extent. When the user leans against the backrest 100, the second massage component 103 will tilt to fit the user's back. The design of the elastic element 601 also allows it to fit more tightly. After the user leaves, the elastic element 601 can also drive the massage block 202 to return to its original position for the next use.

[0044] refer to Figure 3 and Figure 4 In some embodiments of this utility model, the chair back 100 further includes a lifting mechanism 303. The lifting mechanism 303 connects to the side of the back frame 101 facing away from the first massage component 102 and the second massage component 103, and is used to drive the back frame 101 to rise and fall vertically. The lifting mechanism 303 can drive the entire back frame 101 to rise and fall vertically, thereby allowing the first massage component 102 and the second massage component 103 to perform multi-position massage on the user's back in the vertical direction, adapting to the usage needs of users of different heights and improving the massage experience. Specifically, see reference... Figure 3 and Figure 4 In some embodiments of this utility model, the lifting mechanism 303 is driven by gears and a vertically arranged rack. The motor drives the gears to rotate, thereby causing the rack meshing with the gears to move relative to each other. In some embodiments of this utility model, the lifting mechanism 303 can also be driven by a screw drive, chain drive, etc.

[0045] refer to Figure 9 and Figure 10 In some embodiments of this utility model, the back frame 101 includes a first frame 301 and a second frame 302, with a first massage component 102 and a second massage component 103 connected to the side of the first frame 301 facing away from the second frame 302. The chair back 100 also includes a translation mechanism 1001, which connects the first frame 301 and the second frame 302. The translation mechanism 1001 drives the second frame 302 to move back and forth. The translation mechanism 1001 allows the second frame 302 to move as a whole in the back-and-forth direction, thereby causing the first massage component 102 and the second massage component 103 mounted on the second frame 302 to also move back and forth, achieving a pushing and pressing effect on the user and enhancing the massage experience. Specifically, refer to... Figure 9 and Figure 10 In some embodiments of this utility model, the specific structure of the translation mechanism 1001 is as follows: first, a motor is set on the backrest 100, the output end of the motor is connected to a worm gear transmission structure, and then a lead screw is installed on the worm gear. The worm gear rotates, thereby causing the lead screw to rotate, thereby pushing the second frame to move. In some embodiments, sprocket chain transmission, gear transmission and other forms can also be used.

[0046] The chair according to the second aspect embodiment of the present invention includes the backrest 100 of any one of the embodiments in the first aspect. Existing massage chairs typically only have a massage component with massage blocks 202 on the backrest 100, or airbags 201 on both sides for gentle pressure. However, the user's spine is often quite fragile and sensitive, and the back on both sides of the spine has relatively more muscle groups, requiring more kneading. Directly pressing the spine with massage blocks 202 can cause discomfort for the user. The backrest 100 of the present invention has a first massage component 102 with airbags 201 in the middle part of the backrest 100, and second massage components 103 with massage blocks 202 on both sides of the first massage component 102 in the horizontal direction. The airbags 201 extend and retract to provide a gentle massage to the user's spine, while the massage blocks 202 on both sides provide relatively stronger pressure to the muscle groups on both sides of the spine. Using this backrest 100 can effectively improve the massage experience.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A chair back, characterized in that, include: Back frame; A first massage component, comprising a first drive member and an airbag, wherein the first drive member is used to drive the airbag to inflate and deflate, and the first massage component is connected to the back frame; The second massage component includes a second drive member and a massage block. The second drive member is used to drive the massage block to move. The second massage component is connected to the back frame. The second massage component is provided in two parts, which are respectively installed at both ends of the first massage component in the horizontal direction, and the second massage component and the first massage component are connected to the same side of the back frame.

2. The chair back according to claim 1, characterized in that, The second driving component is a motor, which is used to drive the massage block to rotate.

3. The chair back according to claim 2, characterized in that, The second massage assembly includes a worm gear, a worm, and a lead screw. The second drive member is connected to the worm and drives the worm to rotate. The worm gear is connected to the worm and the lead screw. The other end of the lead screw is connected to the massage block. The second drive member drives the worm to rotate the worm gear, so that the lead screw rotates around its own axis, thereby causing the massage block to move along the axis of the lead screw and then rotate.

4. The chair back according to claim 3, characterized in that, The back frame has a placement slot, the massage block is placed in the placement slot, and the chair back also includes: A damping element is disposed in the placement groove and abuts against the outer peripheral surface of the massage block. The massage block is threadedly connected to the lead screw. The frictional force between the massage block and the lead screw is less than the frictional force between the damping element and the massage block. When the damping element abuts against the massage block, the massage block moves along the axial direction of the lead screw. When the damping element disengages from the massage block, the massage block rotates.

5. The chair back according to claim 3, characterized in that, The central axis of each massage block is inclined toward the central axis of the airbag in a direction away from the back frame.

6. The chair back according to claim 5, characterized in that, The chair back also includes: An adjusting member is disposed between the second driving member and the worm gear. One end of the adjusting member is rotatably connected to the second driving member and can rotate relative to the second driving member about a first axis. The other end of the adjusting member is rotatably connected to the worm gear and can rotate relative to the adjusting member about a second axis. One of the first axis and the second axis extends vertically, and the other extends horizontally. The second driving member is disposed within the back frame, and a bearing is fixedly installed within the frame. The end of the worm gear away from the second driving member passes through the bearing, and the central axis of the worm gear is inclined relative to the central axis of the second driving member towards the side closer to the second massage assembly.

7. The chair back according to claim 1, characterized in that, The second massage component includes a conical member, which is fixedly connected to the massage block; The back frame has a tapered hole, and the tapered component is disposed in the tapered hole with a clearance fit between the tapered component and the tapered hole; The chair back also includes an elastic element, one end of which abuts against the massage block, and the other end of which abuts against the conical hole. The elastic element is used to drive the central axis of the massage block to align with the central axis of the conical hole.

8. The chair back according to claim 1, characterized in that, The chair back also includes: A lifting mechanism is provided, which is connected to the side of the back frame facing away from the first massage component and the second massage component. The lifting mechanism is used to drive the back frame to move up and down in the vertical direction.

9. The chair back according to claim 1, characterized in that, The back frame includes a first frame and a second frame, and the first massage component and the second massage component are connected to the side of the first frame facing away from the second frame; The chair back also includes a translation mechanism, which connects the first frame and the second frame and is used to drive the second frame to move back and forth.

10. A seat, characterized in that, Includes the chair back as described in any one of claims 1-9.

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