A structure for automatically tensioning and rolling up a cloth along with a pillow back

CN224911466UActive Publication Date: 2026-10-30ZHEJIANG HAOZHONGHAO HEALTH PROD
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Patent Information

Application Number
CN202522542953.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-28
Publication Date
2026-10-30
Estimated Expiration
2035-11-28

AI Technical Summary

Technical Problem

[0004]上述方案中,布料是通过由安装轴和张紧轴构成的张紧组件实现张紧的,张紧轴受弹性力的作用可抵压布料的背面实现对布料的张紧,其对布料的张紧效果有限,并且不能够对布料进行收卷

Benefits of technology

[0007]通过采用上述技术方案,通过设置扪布、滑槽、支撑板、卷簧和转轴,通过驱动组件可以将扪布收纳和展开,或者驱动组件将扪布展开,并由卷簧的弹力将扪布收纳,驱动组件在将扪布展开时需要克服卷簧的弹力,并且在扪布展开后,由于卷簧弹力的作用,会使得扪布始终处于张紧状态,不会导致扪布出现松垮的情况,并且能够给于人体一个向外的微弱推力,提高对人体的整体支撑作用,有效减少行走按摩机芯与人体之间的异物感。并且通过扪布可以随着卷簧被收纳卷绕在转轴上,可以对扪布进行收纳,延长扪布的使用寿命,并且扪布上枕靠的设置,可以随扪布展开或收纳时处于不同的位置,对人体不同部位进行舒适性支撑,枕靠可实现对使用者最佳支撑位置的调整,并随同性实现扪布的展开。而支撑板的设置,可以对扪布进行滑动导向作用,还可为扪布和枕靠提供支撑连接载体,支撑板本身也可为人体提供坐靠时的支撑作用。其中,扪布收纳时的方案还可以采用折叠布来回折叠收纳的形式,此时便无需设置转轴和卷簧。

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Abstract

The utility model discloses a kind of touch cloth structures of automatic tensioning winding of pillow rest, including guide rail and the sliding slot of being located on guide rail, at least one support plate is slidably arranged in sliding slot, the end of guide rail is rotatably connected with pivot, winding spring is arranged on pivot, one end of winding spring is fixedly connected with pivot, the other end of winding spring is fixedly connected with touch cloth, touch cloth is fixedly connected with support plate, touch cloth can be wound to pivot with winding spring to be housed or be wound out from pivot and be unfolded along guide rail, pillow rest is fixedly installed on support plate or touch cloth, further include driving assembly, driving assembly drives touch cloth to be housed and be unfolded, or driving assembly drives touch cloth to be unfolded and by the elastic force of winding spring, touch cloth is housed.The utility model can be housed and unfolded to touch cloth, touch cloth can always maintain tensioned state when unfolding, and better comfort support can be provided to human body by setting support plate and pillow rest.
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Description

Technical Field

[0001] This utility model relates to the field of massage device technology, and more specifically, to a fabric support structure that automatically tensions and retracts with a pillow. Background Technology

[0002] As people's living standards improve, their demand for comfort and personalization in home products is increasing. The fabric covering the massage mechanism can loosen with continuous movement. Since the massage mechanism is only fixed in place by the fabric, this loosening over time can worsen the feeling of something being outside the massage mechanism.

[0003] Existing solutions, such as the automatic tensioning fabric massage chair structure disclosed in CN113081657B, include a massage chair frame and a massage robot arm. The massage chair frame includes a base and a seat back. The seat back is provided with fabric along its length to support the weight of the human body, and a guide rail is suspended on the back of the seat back. The massage robot arm includes a base, massage components, a walking component, and a tapping transmission component. The massage components include a left swing arm and a right swing arm: a left massage element is mounted on the left swing arm, and a right massage element is mounted on the right swing arm. The left and right massage elements abut against the fabric. A crankshaft is rotatably mounted on the base, and the left and right swing arms are ball-jointed on the crankshaft. The tapping transmission component includes a tapping shaft, which is rotatably mounted on the base and can drive the left and right massage elements to perform tapping actions. It also includes a drive device to drive the left and right swing arms to achieve a double concave swing. This solution allows for a massage robot arm with a relatively large massage width to perform walking massage, and its design is reasonable.

[0004] In the above scheme, the fabric is tensioned by a tensioning assembly consisting of a mounting shaft and a tensioning shaft. The tensioning shaft, under the action of elastic force, can press against the back of the fabric to achieve tensioning of the fabric. However, its tensioning effect on the fabric is limited, and it cannot roll up the fabric. Utility Model Content

[0005] This invention overcomes the shortcomings of the prior art by proposing a fabric upholstery structure that automatically tensions and retracts with the pillow backrest. Its structure is reasonably designed and can store and unfold the fabric upholstery. When unfolded, the fabric upholstery can always maintain a taut state, and by setting a support plate and a pillow backrest, it can provide better comfort support for the human body.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An automatic tensioning and retracting upholstery structure for a pillow includes a guide rail and a groove on the guide rail. At least one support plate is slidably disposed in the groove. A rotating shaft is rotatably connected to the end of the guide rail. A coil spring is wound around the rotating shaft. One end of the coil spring is fixedly connected to the rotating shaft, and the other end of the coil spring is fixedly connected to the upholstery. The upholstery is fixedly connected to the support plate. The upholstery can be wound onto the rotating shaft with the coil spring for storage or rolled out from the rotating shaft and unfolded along the guide rail. A pillow is fixedly installed on the support plate or the upholstery. The structure also includes a driving component that drives the upholstery to be stored and unfolded, or drives the upholstery to unfold and the upholstery to be stored by the elastic force of the coil spring.

[0007] By adopting the above technical solution, and by setting up a fabric cover, a sliding groove, a support plate, a coil spring, and a rotating shaft, the drive assembly can store and unfold the fabric cover, or unfold the fabric cover and then store it using the elasticity of the coil spring. When unfolding the fabric cover, the drive assembly needs to overcome the elasticity of the coil spring. After unfolding, the fabric cover remains taut due to the elasticity of the coil spring, preventing it from becoming loose. It also provides a slight outward push to the body, improving overall support and effectively reducing the feeling of foreign objects between the walking massager and the body. Furthermore, the fabric cover can be stored and wound around the rotating shaft along with the coil spring, extending its lifespan. The pillow-like support on the fabric cover can be positioned differently depending on whether the fabric cover is unfolded or folded, providing comfortable support to different parts of the body. The pillow-like support can be adjusted to the user's optimal support position and unfolds in sync with the fabric cover. The support plate serves to guide the sliding of the upholstery and provides a supporting connection between the upholstery and the pillow. The support plate itself also provides support when the person is sitting. Furthermore, the upholstery can be stored by folding it back and forth, eliminating the need for a pivot or coil spring.

[0008] Preferably, the guide rail includes a straight section and a curved section connected together, and the slide includes a straight section and a curved section connected together. The straight section and the straight section correspond to each other, and the curved section and the curved section correspond to each other. The pivot is located at the end of the curved section away from the straight section. When the upholstery is in the fully retracted state, the pillow is located at the connection between the curved section and the straight section. When the upholstery is in the fully extended state, the pillow is located at the end of the straight section away from the curved section.

[0009] By adopting the above technical solution, the fabric can be stored on the pivot after passing through the curved section, and at this time, the pillow back corresponds to the waist position of the human body, providing good support for the waist. When the fabric is unfolded, the pillow back corresponds to the head position of the human body and can be used as a headrest.

[0010] Preferably, at least one guide plate is fixedly connected to the curved section. The guide plate is inclined or arc-shaped, and the fabric abuts against the guide plate. The fabric is rolled into or out of the shaft through the guide plate.

[0011] By adopting the above technical solution, multiple guide plates can be set, and multiple guide plates are fixed on the curved section. The guide plates are inclined or arc-shaped at the corresponding positions of the curved section, which can provide good guidance when the fabric is stored and unfolded.

[0012] Preferably, a fixing plate is provided on the guide rail at the position corresponding to the rotating shaft. The fixing plate abuts against the fabric. The fabric is rolled into or out of the rotating shaft through the fixing plate. The fixing plate is located on one side of the fabric, and the guide plate is located on the other side of the fabric.

[0013] By adopting the above technical solution, the fixing plate is set on the side of the rotating shaft and is the last section of the fabric that is wound onto the rotating shaft. The guide plate and the fixing plate can guide the two sides of the fabric respectively, and when the fabric is unfolded, it will abut against the guide plate and the fixing plate, thereby further improving the tension of the fabric.

[0014] Preferably, the guide rail is provided with a guide hole parallel to the straight part, the drive assembly includes a synchronous belt structure, the synchronous belt structure includes a conveyor belt parallel to the guide hole, a conveyor block is fixedly provided on the conveyor belt, and the conveyor block is fixedly connected to a drive shaft that passes through the guide hole and is fixed to the support plate.

[0015] By adopting the above technical solution, the synchronous belt structure drives the support plate to slide along the chute. The forward and reverse conveying of the synchronous belt structure can unfold and store the fabric. Of course, when the fabric is stored, it is also subject to the elastic force of the coil spring, which facilitates storage. Alternatively, the synchronous belt structure can only unfold the fabric, while the storage of the fabric is achieved by the elastic force of the coil spring.

[0016] Preferably, the support plate has two hinged parts, which are arranged side by side along the length of the guide rail. Each support plate has a sliding shaft that is slidably disposed in a groove. One support plate near the straight section is fixedly connected to the drive shaft, while the other support plate can slide onto the curved section.

[0017] By adopting the above technical solution, the two support plates can provide good support and support a larger headrest installation. The two support plates are hinged to each other. When the drive shaft moves along the guide hole to the position closest to the bend, the other support plate, which is not connected to the drive shaft and is close to the pivot, will slide onto the bend. This places the headrest at the junction of the bend and the straight section, so as to provide greater support for the human waist.

[0018] Preferably, it also includes a limiting component, which includes a magnet disposed on the conveying block and a Hall sensor disposed on the guide rail at at least one end of the guide hole.

[0019] By adopting the above technical solution, the setting of the limiting component can limit the movement distance of the drive shaft in the guide hole, thereby ensuring the positional accuracy when storing and unfolding the fabric.

[0020] Preferably, the guide rail is provided with a straight groove on the straight part, the straight groove is arranged parallel to the guide hole, the straight groove and the sliding groove are arranged in layers, a pulley is slidably arranged in the straight groove, a connecting member is fixedly arranged on the pulley, the connecting member is fixedly connected to the end of the fabric away from the rotating shaft, when the pulley is at the top of the straight groove, the fabric is in the unfolded state; when the pulley is at the bottom of the straight groove, the fabric is in the retracted state.

[0021] By adopting the above technical solution, the connector can be directly fixed to the upholstery, either by bonding or sewing, or the connector can pass through the upholstery and be connected to it. The connector slides along the straight groove with the pulley, and the cooperation between the pulley and the straight groove makes the movement of the upholstery smoother.

[0022] Preferably, there are two guide rails, the rotating shaft is located between the two guide rails, the fabric is located between the two guide rails, the drive assembly includes a rotating component that drives the rotating shaft to rotate, the rotating component includes a rotating wheel connected to the rotating shaft, the drive assembly also includes a drive motor, the drive motor drives a synchronous belt structure through a belt, and the rotating wheel is driven by other drive sources or the rotating wheel is directly or indirectly driven by the drive wheel.

[0023] By adopting the above technical solution, the width of the fabric is less than or equal to the distance between the two guide rails. The rotating wheel can drive the shaft, which can further improve the tension when the fabric is unfolded and make it easier to store the fabric. The rotating wheel can be driven synchronously by the drive motor along with the synchronous belt structure, or it can be driven independently by other drive sources such as motor pulley structures. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the unfolding structure of the fabric in a specific embodiment of this utility model. Figure 1 ; Figure 2 This is a schematic diagram illustrating the unfolding structure of the fabric in a specific embodiment of this utility model. Figure 2 ; Figure 3 This is a schematic diagram illustrating the structure of the fabric storage unit in a specific embodiment of this utility model; Figure 4 This is a schematic diagram illustrating the structure of the guide rail in a specific embodiment of this utility model. Figure 1 ; Figure 5 This is a schematic diagram illustrating the structure of the guide rail in a specific embodiment of this utility model. Figure 2 ; Figure 6 for Figure 4 Enlarged view of point A in the middle; Figure 7 for Figure 5 Enlarged view of point B in the middle; Figure 8 for Figure 5 Enlarged view of point C in the middle; Figure 9 This is a schematic diagram illustrating the structure of the rotating shaft, coil spring, and fixing plate in a specific embodiment of this utility model; Figure 10 This is a schematic diagram illustrating the connection structure between the support plate and the drive shaft in a specific embodiment of this utility model; Figure 11 This is a schematic diagram illustrating the structure of the pulley and connecting component in a specific embodiment of this utility model.

[0025] In the diagram: 2. Guide rail; 22. Slide groove; 221. Straight section; 222. Curved section; 23. Straight part; 24. Curved part; 25. Guide hole; 26. Hall sensor; 27. Straight groove; 271. Pulley; 272. Connector; 4. Support plate; 41. Sliding shaft; 5. Rotating shaft; 51. Coil spring; 6. Lining fabric; 61. Pillow back; 7. Guide plate; 8. Fixing plate; 9. Drive assembly; 91. Synchronous belt structure; 92. Conveyor belt; 93. Conveyor block; 931. Magnet; 94. Drive shaft; 95. Drive motor; 96. Belt. Detailed Implementation

[0026] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] like Figure 1-11 As shown, a fabric upholstery structure that automatically tensions and retracts with a pillow includes a guide rail 2 and a groove 22 on the guide rail 2. At least one support plate 4 is slidably disposed in the groove 22. A rotating shaft 5 is rotatably connected to the end of the guide rail 2. A coil spring 51 is wound around the rotating shaft 5. One end of the coil spring 51 is fixedly connected to the rotating shaft 5, and the other end of the coil spring 51 is fixedly connected to the upholstery 6. The upholstery 6 is fixedly connected to the support plate 4. The upholstery 6 can be wound onto the rotating shaft 5 with the coil spring 51 for storage or rolled out from the rotating shaft 5 and unfolded along the guide rail 2. A pillow backrest 61 is fixedly installed on the support plate 4 or the upholstery 6. The structure also includes a driving component 9, which drives the upholstery 6 to be stored and unfolded, or drives the upholstery 6 to unfold and is then stored by the elastic force of the coil spring 51.

[0031] By adopting the above technical solution, and by setting up the fabric 6, the slide 22, the support plate 4, the coil spring 51, and the rotating shaft 5, the drive assembly 9 can store and unfold the fabric 6, or unfold the fabric 6 and store it by the elasticity of the coil spring 51. When unfolding the fabric 6, the drive assembly 9 needs to overcome the elasticity of the coil spring 51. After unfolding, the fabric 6 will always be taut due to the elasticity of the coil spring 51, preventing it from becoming loose. It can also provide a slight outward push to the human body, improving the overall support and effectively reducing the foreign body sensation between the walking massage mechanism and the human body. Furthermore, the fabric 6 can be stored and wound around the rotating shaft 5 along with the coil spring 51, extending its service life. The backrest 61 on the fabric 6 can be positioned differently depending on whether the fabric 6 is unfolded or stored, providing comfortable support to different parts of the human body. The support plate 4 can guide the sliding of the upholstery 6, and also provide a support connection carrier for the upholstery 6 and the pillow 61. The support plate 4 itself can also provide support for the human body when sitting.

[0032] The guide rail 2 includes a straight section 23 and a curved section 24 connected to each other. The slide groove 22 includes a straight section 221 and a curved section 222 connected to each other. The straight section 221 corresponds to the straight section 23, and the curved section 222 corresponds to the curved section 24. The pivot 5 is located at the end of the curved section 24 away from the straight section 23. When the upholstery 6 is fully retracted, the pillow back 61 is located at the connection between the curved section 24 and the straight section 23. When the upholstery 6 is fully extended, the pillow back 61 is located at the end of the straight section 23 away from the curved section 24. The upholstery 6 can pass through the curved section 24 to be retracted onto the pivot 5, and at this time, the pillow back 61 corresponds to the waist position of the human body, providing good support for the waist. When the upholstery 6 is extended, the pillow back 61 corresponds to the head position of the human body and can be used as a headrest.

[0033] At least one guide plate 7 is fixedly connected to the curved section 222. The guide plate 7 is inclined or arc-shaped. The fabric 6 abuts against the guide plate 7 and is rolled into or out of the shaft 5 via the guide plate 7. Multiple guide plates 7 can be provided, and all multiple guide plates 7 are fixed on the curved section 222. The guide plates 7 are inclined or arc-shaped at corresponding positions on the curved section 222 to match the curved section 222. In this way, the fabric 6 can be well guided when it is stored and unfolded.

[0034] Furthermore, a fixing plate 8 is provided on the guide rail 2 at the position corresponding to the rotating shaft 5. The fixing plate 8 abuts against the fabric 6. The fabric 6 is wound into or out of the rotating shaft 5 through the fixing plate 8. The fixing plate 8 is located on one side of the fabric 6, and the guide plate 7 is located on the other side of the fabric 6. The fixing plate 8 is located on the side of the rotating shaft 5 and is the last section of the fabric 6 being wound onto the rotating shaft 5. The guide plate 7 and the fixing plate 8 can guide both sides of the fabric 6 respectively, and when the fabric 6 is unfolded, it will abut against the guide plate 7 and the fixing plate 8, thereby further improving the tension of the fabric 6.

[0035] Furthermore, the guide rail 2 is provided with a guide hole 25 parallel to the straight section 23. The drive assembly 9 includes a synchronous belt structure 91, which includes a conveyor belt 92 parallel to the guide hole 25. A conveyor block 93 is fixedly installed on the conveyor belt 92, and the conveyor block 93 is fixedly connected to a drive shaft 94 that passes through the guide hole 25 and is fixed to the support plate 4. The synchronous belt structure 91 is used to drive the support plate 4 to slide along the slide groove 22. The forward and reverse conveying of the synchronous belt structure 91 can unfold and store the fabric 6. Of course, when the fabric 6 is stored, it will also be subject to the elastic force of the coil spring 51, which makes it easier to store. Alternatively, the synchronous belt structure 91 can only unfold the fabric 6, while the storage of the fabric 6 is achieved by the elastic force of the coil spring 51.

[0036] The support plate 4 consists of two hinged plates arranged side-by-side along the length of the guide rail 2. Each support plate 4 has a sliding shaft 41 that slides in the groove 22. One support plate 4, closer to the straight section 23, is fixedly connected to the drive shaft 94, while the other support plate 4 can slide onto the curved section 222. The two support plates 4 provide excellent support and allow for the installation of a larger headrest 61. Because the two support plates 4 are hinged together, when the drive shaft 94 moves along the guide hole 25 to the position closest to the curved section 24, the other support plate 4, which is not connected to the drive shaft 94 and is closer to the pivot 5, slides onto the curved section 222, thereby placing the headrest 61 at the junction of the curved section 222 and the straight section 221 to provide greater support for the human waist.

[0037] Additionally, a limiting component is included, comprising a magnet 931 disposed on the conveyor block 93 and a Hall sensor 26 disposed on the guide rail 2 at at least one end of the guide hole 25. The limiting component restricts the movement distance of the drive shaft 94 in the guide hole 25, thereby ensuring the positional accuracy when the fabric 6 is stored and unfolded.

[0038] Furthermore, the guide rail 2 has a straight groove 27 on the straight section 23, which is parallel to the guide hole 25. The straight groove 27 and the sliding groove 22 are arranged in layers. A pulley 271 is slidably arranged in the straight groove 27, and a connector 272 is fixedly arranged on the pulley 271. The connector 272 is fixedly connected to the end of the fabric 6 away from the rotating shaft 5. When the pulley 271 is at the top of the straight groove 27, the fabric 6 is in an unfolded state; when the pulley 271 is at the bottom of the straight groove 27, the fabric 6 is in a retracted state. The connector 272 can be directly fixedly connected to the fabric 6, or the connector 272 can pass through the fabric 6 and be connected to it. The connector 272 slides only along the straight groove 27 with the pulley 271. The cooperation between the pulley 271 and the straight groove 27 makes the movement of the fabric 6 smoother.

[0039] Furthermore, there are two guide rails 2, with the rotating shaft 5 located between the two guide rails 2, and the upholstery 6 located between the two guide rails 2. The drive assembly 9 includes a rotating component that drives the rotating shaft 5 to rotate. The rotating component includes a rotating wheel connected to the rotating shaft 5. The drive assembly 9 also includes a drive motor 95, which drives the synchronous belt structure 91 via a belt 96. The rotating wheel can be driven by other drive sources or directly or indirectly by the drive wheel. The rotating wheel is not shown in the figure; it can be a pulley or a sprocket. Driving the rotating wheel by the drive wheel or other drive sources is mature existing technology and will not be elaborated here. The width of the upholstery 6 is less than or equal to the distance between the two guide rails 2. The rotating wheel can drive the rotating shaft 5, further improving the tension of the upholstery 6 when unfolded and facilitating its storage. The rotating wheel can be synchronously driven by the drive motor 95 along with the synchronous belt structure 91, or it can operate independently by other drive sources such as a motor pulley structure.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A backrest fabric structure that automatically tensions and retracts with the pillow, comprising a guide rail (2) and a groove (22) provided on the guide rail (2), characterized in that, At least one support plate (4) is slidably arranged in the slide (22). A rotating shaft (5) is rotatably connected to the end of the guide rail (2). A coil spring (51) is wound on the rotating shaft (5). One end of the coil spring (51) is fixedly connected to the rotating shaft (5), and the other end of the coil spring (51) is fixedly connected to the upholstery (6). The upholstery (6) is fixedly connected to the support plate (4). The upholstery (6) can be wound onto the rotating shaft (5) with the coil spring (51) for storage or rolled out from the rotating shaft (5) and unfolded along the guide rail (2). A pillow (61) is fixedly installed on the support plate (4) or the upholstery (6). The system also includes a drive assembly (9). The drive assembly (9) drives the upholstery (6) to be stored and unfolded, or the drive assembly (9) drives the upholstery (6) to unfold and the upholstery (6) is induced to be stored by the elastic force of the coil spring (51).

2. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 1, characterized in that, The guide rail (2) includes a straight section (23) and a curved section (24) connected to each other. The slide (22) includes a straight section (221) and a curved section (222) connected to each other. The straight section (221) corresponds to the straight section (23), and the curved section (222) corresponds to the curved section (24). The pivot (5) is located at the end of the curved section (24) away from the straight section (23). When the upholstery (6) is in a fully retracted state, the pillow (61) is located at the connection between the curved section (24) and the straight section (23). When the upholstery (6) is in a fully extended state, the pillow (61) is located at the end of the straight section (23) away from the curved section (24).

3. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 2, characterized in that, At least one guide plate (7) is fixedly connected to the curved section (222). The guide plate (7) is inclined or arc-shaped. The fabric (6) abuts against the guide plate (7) and the fabric (6) is rolled into or out of the shaft (5) through the guide plate (7).

4. The automatically tensioning and retracting upholstery structure according to claim 3, characterized in that, A fixing plate (8) is provided on the guide rail (2) at the position corresponding to the rotating shaft (5). The fixing plate (8) abuts against the fabric (6). The fabric (6) is rolled into or out of the rotating shaft (5) through the fixing plate (8). The fixing plate (8) is located on one side of the fabric (6), and the guide plate (7) is located on the other side of the fabric (6).

5. A backrest fabric structure that automatically tensions and retracts with the pillow as described in claim 2, 3, or 4, characterized in that, The guide rail (2) is provided with a guide hole (25) parallel to the straight part (23). The drive assembly (9) includes a synchronous belt structure (91). The synchronous belt structure (91) includes a conveyor belt (92) parallel to the guide hole (25). A conveyor block (93) is fixedly provided on the conveyor belt (92). The conveyor block (93) is fixedly connected to a drive shaft (94) that passes through the guide hole (25) and is fixed to the support plate (4).

6. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 5, characterized in that, The support plate (4) is provided with two hinged to each other. The two support plates (4) are arranged side by side in the length direction of the guide rail (2). Each of the two support plates (4) is provided with a sliding shaft (41) that is slidably disposed in the slide groove (22). One support plate (4) near the straight part (23) is fixedly connected to the drive shaft (94), and the other support plate (4) can slide onto the curved section (222).

7. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 6, characterized in that, It also includes a limiting component, which includes a magnet (931) disposed on the conveyor block (93) and a Hall sensor (26) disposed on the guide rail (2) at at least one end of the guide hole (25).

8. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 5, characterized in that, The guide rail (2) is provided with a straight groove (27) on the straight part (23). The straight groove (27) is parallel to the guide hole (25). The straight groove (27) and the sliding groove (22) are arranged in layers. A pulley (271) is slidably arranged in the straight groove (27). A connector (272) is fixedly arranged on the pulley (271). The connector (272) is fixedly connected to the end of the fabric (6) away from the rotating shaft (5). When the pulley (271) is at the top of the straight groove (27), the fabric (6) is in the unfolded state. When the pulley (271) is at the bottom of the straight groove (27), the fabric (6) is in the retracted state.

9. The upholstery structure for automatic tensioning and retraction with the pillow as described in claim 8, characterized in that, There are two guide rails (2), the rotating shaft (5) is located between the two guide rails (2), the fabric (6) is located between the two guide rails (2), the drive assembly (9) includes a rotating assembly that drives the rotating shaft (5) to rotate, the rotating assembly includes a rotating wheel connected to the rotating shaft (5), the drive assembly (9) also includes a drive motor (95), the drive motor (95) drives the synchronous belt structure (91) through the belt (96), the rotating wheel is driven by other drive sources or the rotating wheel is driven directly or indirectly by the drive wheel.

Citation Information

Patent Citations

  • An automatic tensioning fabric massage chair structure

    CN113081657B