Waist leaning assembly and seat

Abstract

The utility model discloses a waist leaning assembly and a seat. The waist leaning assembly comprises a waist frame and a sacrum supporting module. The sacrum supporting module comprises an abutting part and a fixing part which are connected with each other, the fixing part is fixedly installed in front of the waist frame, the abutting part is installed in front of the fixing part, the abutting part gradually inclines backwards from top to bottom, and the abutting part is used for supporting the sacrum. According to the sacrum supporting module, the upper end of the sacrum supporting module is used for supporting the sacrum, the lower end of the sacrum supporting module is closer to the waist frame, space is vacated for the sitting depth of a cushion, occupation of the sitting depth space is reduced, the sacrum supporting module can be better attached to the sacrum structure in the early stage, and the comfort during supporting is improved; space is vacated for the crotch and buttocks below the sacrum of the human body, and the use experience of the seat is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat manufacturing technology, specifically to a lumbar support component and a seat. Background Technology

[0002] As living standards improve, people's functional needs for chairs are becoming increasingly diverse, with particular attention being paid to the sacrum in the spine. Supporting the sacrum offers numerous benefits, including maintaining structural stability, protecting nerves, and distributing pressure. However, the sacrum is located at the lower end of the spine, and existing chairs with sacral support mechanisms suffer from issues such as the support structure occupying seat depth space and resulting in a less comfortable experience. 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 lumbar support component that can effectively support the sacrum while reducing the space occupied by the seat depth.

[0004] This utility model also proposes a seat having the above-mentioned lumbar support component.

[0005] A lumbar support assembly according to a first aspect of the present invention includes a lumbar frame and a sacral support module. The sacral support module includes an abutment portion and a fixing portion connected to each other. The fixing portion is fixedly installed in front of the lumbar frame, and the abutment portion is installed in front of the fixing portion. From top to bottom, the abutment portion gradually tilts backward, and the abutment portion is used to support the sacrum.

[0006] The lumbar support component according to the embodiments of the present invention has at least the following beneficial effects: The sacral support module of the present invention, by designing an inclined structure, uses its upper end to support the sacrum and its lower end to be closer to the lumbar frame, thus freeing up space for the seat depth of the cushion and reducing the occupation of the seat depth space. In addition, the human sacrum has a certain forward tilt angle, and the forward tilted sacral support module can better match the natural physiological curvature of the human body, providing more precise support. The forward tilted sacral support module can better fit the shape of the sacrum, reducing the pressure and discomfort caused by the gap between the support module and the sacrum, freeing up space for the hips and buttocks below the sacrum, and improving the user experience of the seat.

[0007] According to some embodiments of this utility model, the inclination angle of the abutment portion relative to the vertical plane is α, where 33°≤α≤37°. When α is less than 33°, the sacral support module is too vertical and cannot fit the sacrum well, failing to provide sufficient support. The user will feel that the sacral area is unsupported, easily causing lower back pain and discomfort, reducing seating comfort. When α is greater than 37°, the sacral support module is too horizontal, causing the user's sacral area to be excessively pushed forward, and the body above the sacrum to be excessively leaning backward, resulting in the lower back not being able to straighten properly, thus affecting normal sitting posture and potentially putting adverse pressure on the spine. Over time, this can easily cause lower back fatigue or even injury, and also cause lower back discomfort, reducing user comfort.

[0008] According to some embodiments of this invention, the abutment portion is elastic. The elastic abutment portion can adaptively adjust to the user's body shape and sitting posture, closely conforming to the sacral curve, thereby providing more even and personalized support. This conformity not only enhances the comfort of sitting but also helps reduce pressure on the sacrum and spine from prolonged sitting, preventing related pain and discomfort.

[0009] According to some embodiments of this utility model, the abutment part is an airbag. The airbag's ability to expand after inflation gives it greater adaptability; that is, while the position adjustment of ordinary elastic components requires a separate telescopic mechanism, the airbag only needs to inflate and deflate on its own. Once formed, the shape and support strength of ordinary elastic components are relatively fixed, making it difficult to make precise adjustments for individual differences. The airbag, however, can flexibly change the shape of the support module by adjusting the inflation volume to better fit the sacral curve and sitting posture needs of different users. Secondly, the airbag performs excellently in terms of cushioning performance. The compression and rebound of the gas inside can efficiently absorb and disperse impact force, effectively reducing the vibration impact on the sacrum and spine during prolonged sitting.

[0010] According to some embodiments of the present invention, the length of the abutting portion gradually decreases from top to bottom.

[0011] According to some embodiments of the present invention, the length of the upper end of the abutting part is L1, the vertical distance between the upper end of the abutting part and the lower end of the abutting part is L2, 180mm≤L1≤280mm, and / or, 60mm≤L2≤80mm.

[0012] According to some embodiments of the present invention, the lumbar support assembly further includes a heat therapy module, which is installed in front of the lumbar frame and is capable of generating heat and applying heat to the lumbar region.

[0013] According to some embodiments of this utility model, two heat therapy modules are provided, and the lumbar support component also includes an elastic band. The left and right ends of the elastic band are fixedly connected to the waist frame. The two heat therapy modules are fixedly installed on the elastic band, and the two heat therapy modules are distributed at intervals. Both heat therapy modules are distributed at intervals with the waist frame.

[0014] According to some embodiments of the present invention, the hot compress module includes a hot compress surface, which is a curved surface, and the center of the hot compress surface protrudes forward relative to the top and bottom of the hot compress surface.

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

[0016] The seat according to the present invention has at least the following beneficial effects: The sacral support module of the present invention is designed with an inclined structure, so that its upper end is used to support the sacrum and its lower end is closer to the waist frame, which makes room for the seat depth of the cushion, reduces the occupation of the seat depth space, and can also support the sacrum more accurately, making room for the hips and buttocks below the sacrum, thus improving the user experience of the seat.

[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 perspective view of the lumbar support component in one embodiment of the present invention;

[0020] Figure 2 This is a front view of the lumbar support component in one embodiment of the present invention;

[0021] Figure 3 This is a top view of the lumbar support component in one embodiment of the present invention;

[0022] Figure 4 This is a side view of the sacral support module of the lumbar support assembly in one embodiment of the present invention.

[0023] Figure 5 This is a side view of the heating module of the lumbar support component in one embodiment of the present invention;

[0024] Figure 6 A schematic diagram of the human spine;

[0025] Figure 7This is a schematic diagram of a sacral support module in the prior art.

[0026] Reference numerals: lumbar support assembly 100, lumbar frame 101, sacral support module 102, hot compress module 103, elastic band 104, hot compress surface 301, fixing part 401, abutting part 402. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] refer to Figure 1 and Figure 4According to a first aspect embodiment of the present invention, a lumbar support assembly 100 includes a lumbar frame 101 and a sacral support module 102. The sacral support module 102 includes an abutment portion 402 and a fixing portion 401 connected to each other. The fixing portion 401 is fixedly installed in front of the lumbar frame 101, and the abutment portion 402 is installed in front of the fixing portion 401. From top to bottom, the abutment portion 402 gradually tilts backward, and the abutment portion 402 is used to support the sacrum. The sacral support module 102 of this embodiment is designed with an inclined structure, so that its upper end is used to support the sacrum, and its lower end is closer to the lumbar frame 101, freeing up space for the seat depth of the cushion and reducing the occupation of the seat depth space. (See reference...) Figure 6 The human sacrum has a certain forward tilt angle. The forward tilted sacral support module 102 can better match the natural physiological curvature of the human body and provide more precise support. The forward tilted sacral support module 102 can better fit the shape of the sacrum, reduce the pressure and discomfort caused by the gap between the sacral support module 102 and the sacrum, and make room for the hips and buttocks below the sacrum, thus improving the user experience of the seat.

[0033] Specifically, refer to Figure 6 The sacrum is located low on the spine, below which lies the coccyx. Externally, the buttocks also need to be comfortably seated in a chair. (See reference...) Figure 7 In existing technologies, the sacral support structure occupies part of the seat cushion space and does not conform well to the sacrum. The forward-protruding lower end also takes up seat cushion space, resulting in a poor user experience. The sacral support module 102 in the lumbar support component 100 of this embodiment uses an outward-sloping upper end to support the sacrum, precisely conforming to the physiological curve of the human sacrum and providing effective support. The inward-sloping lower end provides reasonable space for the area below the sacrum, making the user feel more comfortable and relaxed when sitting in the chair.

[0034] refer to Figure 4 In some embodiments of this utility model, the inclination angle of the abutment portion 402 relative to the vertical plane is α, where 33°≤α≤37°. The inclination design of the sacral support module 102 in this utility model embodiment is not arbitrary; it is controlled within an optimal angle range, i.e., when the abutment portion 402 is... Figure 4The tilt angle shown provides the user with the best experience. When α is less than 33°, the sacral support module 102 is too vertical, failing to conform well to the sacrum and provide sufficient support. The user will feel their sacrum is unsupported, easily causing lower back pain and discomfort, reducing seating comfort. When α is greater than 37°, the sacral support module 102 is too horizontal, causing the user's sacral region to be excessively pushed forward, and the body above the sacrum to lean excessively backward. This prevents the lower back from straightening properly, affecting normal sitting posture and potentially putting undue pressure on the spine. Prolonged exposure to this can easily lead to lower back fatigue or even injury, and also cause lower back discomfort, reducing user comfort. Preferably, the optimal angle for α is 35°.

[0035] It should be noted that in some embodiments of this utility model, the shape of the abutment portion 402 may be deformed or irregular in shape. In this case, the above-mentioned tilt angle refers to the angle of the line connecting the top and bottom ends of the abutment portion 402 relative to the vertical plane. For example, when the abutment portion 402 is an airbag, the shape of the airbag will change. In this case, the angle α refers to the angle of the line connecting the top and bottom ends of the airbag relative to the vertical plane.

[0036] In some embodiments of this invention, the abutment portion 402 is elastic. The elastic abutment portion 402 can adaptively adjust according to the user's body shape and sitting posture, closely conforming to the sacral curve, thereby providing more uniform and personalized support. This conformity not only enhances the comfort of sitting but also helps reduce the pressure on the sacrum and spine from prolonged sitting, preventing related pain and discomfort. Secondly, the elastic material also has good cushioning properties. When the user sits on the seat, it can absorb and disperse the impact force from the seat, reducing vibration damage to the sacrum and surrounding tissues, further improving the safety of sitting. Regarding the specific material selection, embodiments of this invention can use materials with excellent elasticity and support, such as memory foam and high-elastic latex, or use airbag support as described below. Memory foam can mold to changes in body temperature and pressure, providing lasting comfortable support; while high-elastic latex, with its excellent resilience and breathability, ensures that the user remains dry and comfortable even after long periods of sitting.

[0037] It should be noted that in some embodiments of this utility model, the fixing part 401 may also be provided with a telescopic mechanism to push the abutment part 402 to move in the front-back direction. This allows for more flexible adjustment of the contact position between the sacral support module 102 and the user's back, so as to better adapt to users of different body types and sitting postures.

[0038] In some embodiments of this utility model, the abutment portion 402 is an airbag. Compared to traditional elastic components such as sponge and latex, the application of airbags in the sacral support module 102 exhibits significant advantages. First, the airbag's ability to expand after inflation gives it greater adaptability; that is, adjusting the position of ordinary elastic components requires a separate telescopic mechanism, while the airbag only needs to inflate and deflate on its own. Once formed, the shape and support strength of ordinary elastic components are relatively fixed, making it difficult to make fine adjustments for individual differences. Airbags, however, can flexibly change the shape of the support module by adjusting the inflation volume to better fit the sacral curve and sitting posture needs of different users. Second, the airbag performs excellently in terms of cushioning performance. The compression and rebound of the gas inside can efficiently absorb and disperse impact force, effectively reducing the vibration impact on the sacrum and spine during prolonged sitting. In contrast, while ordinary elastic components can also provide some cushioning effect, they may be insufficient when dealing with complex impact forces. Furthermore, the airbag's support is more uniform and adjustable. By controlling the inflation volume, the stiffness and support of the airbag can be precisely adjusted to ensure that the sacrum receives just the right amount of support. Ordinary elastic components often cannot achieve this precise support effect.

[0039] refer to Figure 2 In some embodiments of this invention, the length of the abutment portion 402 gradually decreases from top to bottom. This gradually decreasing length design allows the sacral support module 102 to more compactly adapt to the overall structure of the seat, reducing space occupation and thus improving the seat's space utilization efficiency. This design not only helps provide effective support within a limited space but also maintains the overall aesthetics and harmony of the seat. Secondly, in terms of conformity to the human body, this gradually decreasing length design better adapts to the physiological curves of the human body. The sacrum is located in the upper part of the seat, while the lower area requires relatively less support. Therefore, the gradually decreasing length design allows the upper end to fit closely to the sacrum, providing precise support, while the lower end transitions naturally, reducing pressure on surrounding areas and improving seating comfort. Furthermore, considering that the sacral support module 102 mainly supports the sacrum with the upper end of the abutment portion 402, the lower end plays a relatively minor role. The gradually decreasing length design not only optimizes the support effect at the upper end but also avoids unnecessary support force caused by an excessively wide lower end, thus preventing additional discomfort to the user. In summary, the design of the abutment portion 402, whose length gradually decreases from top to bottom, not only improves space utilization but also enhances its fit to the human body, ensuring support while improving riding comfort. Preferably, refer to Figure 2 and Figure 3 By setting the abutment part 402 in a centrally symmetrical form along the central axis of the waist frame 101, the aesthetics and the fit between the sacral support module 102 and the waist frame 101 can be further improved.

[0040] It should be noted that the length direction of the contact portion 402 mentioned in the text refers to... Figure 2 The left and right directions are shown.

[0041] refer to Figure 2 In some embodiments of this utility model, the length of the upper end of the abutment portion 402 is L1, and the vertical distance between the upper and lower ends of the abutment portion 402 is L2, where 180mm ≤ L1 ≤ 280mm, and / or 60mm ≤ L2 ≤ 80mm. When the length of the upper end of the abutment portion 402 is within a suitable range, it can accurately cover the sacral region, providing stable and strong support. This appropriate length not only ensures the comprehensiveness and effectiveness of the support but also avoids unnecessary interference with other areas of the seat, maintaining the harmony and balance of the overall seat design. When L1 is greater than 280mm, the upper end of the abutment portion 402 is too long and may exceed the actual required support range, leading to pressure on adjacent areas of the seat. When L1 is less than 180mm, the upper end of the abutment portion 402 is too short and may not be able to fully cover the sacral region, resulting in insufficient support. In this case, the user may not feel effective support, and prolonged sitting may easily cause pain and discomfort in the sacrum and surrounding areas. When the vertical dimension of the sacral support module 102 is within a suitable range, it can provide an appropriate support height, ensuring precise correspondence with the user's sacral position. When L2 is greater than 80mm, the vertical dimension of the abutment portion 402 is too large, which may cause the support module to be too high, exceeding the actual required support range. In this case, it may not only cause unnecessary pressure on the user's waist or back, affecting sitting comfort, but may also cause swaying or instability due to excessive height, reducing the overall stability of the seat. When L2 is less than 60mm, the vertical dimension of the abutment portion 402 is too small, which may not be able to provide sufficient support height, resulting in insufficient support. This may cause the user to feel pain and discomfort in the sacral area after sitting for a long time, and may even affect the health of the spine. At the same time, an excessively short support module may not meet the needs of users of different heights, reducing the applicability of the seat. Preferably, the dimension of L1 is 230mm, and the dimension of L2 is 70mm.

[0042] refer to Figure 1 and Figure 2According to some embodiments of this utility model, the lumbar support assembly 100 further includes a heating module 103, which is installed in front of the lumbar frame 101. The heating module 103 can generate heat and provide heat to the lumbar region. The heating module 103 provides a warm and comfortable experience for the user. Heat itself has the effect of promoting blood circulation and relieving muscle tension and pain. Through the heating module 103 on the lumbar support assembly 100, the user can feel the warm heat penetrating to the back and sacral area when sitting for a long time, effectively reducing muscle fatigue and soreness caused by prolonged sitting. It should be noted that the heating module 103 installed in front of the lumbar frame 101 as shown above refers to... Figure 3 As shown, along the front-back direction, the heating module 103 is located in front of the waist frame 101 portion in its projection direction, and may not be completely exposed outside the entire waist frame 101.

[0043] Specifically, in some embodiments of this utility model, the heating module 103 uses a graphene heating film for heating. When graphene heats up, it has an infrared therapy effect. When a person leans against it, the warm current from the graphene heating film flows to the waist, which can dilate local blood vessels in the waist and accelerate blood flow. The originally slow-flowing blood can pass more smoothly, and more oxygen and nutrients can be delivered to the muscles, ligaments and other tissues in the waist, which helps maintain their normal physiological functions. At the same time, it can also remove metabolic waste, such as lactic acid, more quickly, reducing soreness caused by the accumulation of metabolic waste.

[0044] refer to Figure 1 and Figure 2 In some embodiments of this utility model, two heating modules 103 are provided. The lumbar support component 100 also includes an elastic band 104. The left and right ends of the elastic band 104 are fixedly connected to the lumbar frame 101. The two heating modules 103 are fixedly installed on the elastic band 104, and the two heating modules 103 are spaced apart. Both heating modules 103 are spaced apart from the lumbar frame 101. This design allows the elastic band 104 to deform and bend under pressure after the user leans on it, enabling the two heating modules 103 to move closer to the central axis of the lumbar frame 101, thereby better conforming to the back and providing a better heat therapy effect on the back. Preferably, the two heating modules 103 are symmetrically designed along the central axis of the lumbar frame 101, which allows the heating modules 103 to provide more even heat to both sides of the back.

[0045] refer to Figure 1 , Figure 3 and Figure 5In some embodiments of this utility model, the heat therapy module 103 includes a heat therapy surface 301, which is curved. The center of the heat therapy surface 301 protrudes forward relative to the top and bottom of the heat therapy surface 301. This design allows the center of the heat therapy surface 301 to be closer to the back of the user, and the curves at both ends allow the heat therapy surface 301 to better conform to the back curve after the user leans against the lumbar support component 100, thus improving the heat therapy experience.

[0046] The seat according to a second aspect embodiment of the present invention includes the lumbar support assembly 100 of any one of the first aspect embodiments. The sacral support module 102 of this embodiment is designed with an inclined structure, so that its upper end supports the sacrum and its lower end is closer to the lumbar frame 101, freeing up space for the seat depth of the cushion, reducing the occupancy of the seat depth space, and also providing more precise support for the sacrum, freeing up space for the hips and buttocks below the sacrum, thus improving the user experience of the seat.

[0047] Specifically, in some embodiments of this utility model, the seat includes a seat cushion and a backrest. The lumbar support component 100 is disposed in front of the backrest and located at the lower end of the backrest. The lower edge of the lumbar support component 100 is close to the support surface of the seat cushion. This allows the abutting part of the sacral support module 102 in the lumbar support component 100 to be closer to the position of the sacrum after the user sits on the seat cushion, thereby better fitting and supporting the sacrum.

[0048] 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 lumbar support assembly, characterized in that, include: Waist frame; A sacral support module includes an abutment and a fixing part connected to each other. The fixing part is fixedly installed in front of the waist frame, and the abutment is installed in front of the fixing part. From top to bottom, the abutment gradually tilts backward, and the abutment is used to support the sacrum.

2. The lumbar support assembly according to claim 1, characterized in that, The angle of inclination of the abutment portion relative to the vertical plane is α, where 33°≤α≤37°.

3. The lumbar support assembly according to claim 1, characterized in that, The abutment portion is elastic.

4. The lumbar support assembly according to claim 3, characterized in that, The contact part is an airbag.

5. The lumbar support assembly according to claim 1, characterized in that, The length of the contact portion gradually decreases from top to bottom.

6. The lumbar support assembly according to claim 1, characterized in that, The length of the upper end of the abutment is L1, and the vertical distance between the upper end of the abutment and the lower end of the abutment is L2, where 180mm≤L1≤280mm, and / or 60mm≤L2≤80mm.

7. The lumbar support assembly according to claim 1, characterized in that, The lumbar support assembly also includes a heating module, which is installed in front of the lumbar frame and can generate heat to provide heat to the lumbar region.

8. The lumbar support assembly according to claim 7, characterized in that, The hot compress module is provided in two parts. The lumbar support component also includes an elastic band. The left and right ends of the elastic band are fixedly connected to the lumbar frame. The two hot compress modules are fixedly installed on the elastic band. The two hot compress modules are distributed at intervals. Both hot compress modules are distributed at intervals with the lumbar frame.

9. The lumbar support assembly according to claim 7, characterized in that, The hot compress module includes a hot compress surface, which is curved, and the center of the hot compress surface protrudes forward relative to the top and bottom of the hot compress surface.

10. A seat, characterized in that, Includes the lumbar support assembly as described in any one of claims 1-9.

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