Chair seat

Abstract

The utility model provides a chair seat. The chair seat comprises a shell, a buffer spring, an elastic plate and an elastic cushion, vertical buffer springs are arranged in the shell, the elastic cushion is located on the uppermost layer, and a plurality of grooves are formed in the lower end face of the elastic cushion and can better fit the buttocks of the human body and enhance the elastic deformation capacity. The elastic plate comprises a mounting part, an abutting part and a deformation part, and the deformation part is hollowed out, so that the elastic deformation capacity of the elastic plate can be improved. The loaded deformation of the elastic cushion is transmitted to the elastic plate, so that the abutting part drives the buffer spring to act, the buffer spring provides buffering and force feedback, and power-assisted recovery is achieved when the load is removed. The elastic cushion, the elastic plate and the buffer springs are arranged in a stacked mode, the elasticity is improved through the grooves and the hollowed-out parts, the buffer springs are matched to balance the hardness, the comfortable wrapping feeling and the powerful supporting performance are achieved, ergonomics are met, the problems that a traditional seat is poor in comfort degree and insufficient in supporting performance are effectively solved, and the sitting experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of furniture, in particular to a chair seat. BACKGROUND

[0002] In the field of furniture, chairs are indispensable in people's daily life and work, and their comfort and support have always been important factors. Traditional chair seats usually adopt a single hard plate structure, which can provide some support but performs poorly in elastic deformation, and cannot well fit the human hip curve, leading to local pressure concentration after long sitting, causing fatigue and discomfort, especially for people who need to sit for a long time, such as office workers, students, etc., and this problem is more prominent.

[0003] With the improvement of people's requirements for the quality of life, some chairs have begun to try to use simple elastic materials to improve the comfort of the seat cushion, however, these designs often simply increase the softness of the material, ignoring the rationality of elastic deformation and the balance of support. For example, some chair seats use too soft sponge material or spring packs on the market, which can provide a certain comfort at the beginning of sitting, but lack sufficient support, and users are prone to sink into them during sitting, making it difficult to maintain a natural and comfortable posture, and long-term use may even cause adverse effects on the spine and other parts.

[0004] In summary, the existing chair cushions are too hard and lack elasticity, while the existing spring pack design is too rough and too soft, lacking power and cushioning, and cannot be applied to high-end chairs due to space occupation problems; in order to overcome the shortcomings of traditional chair seats in comfort and support, and meet people's pursuit of high-quality seats, a chair seat is urgently needed. SUMMARY

[0005] To solve the above technical problems, the utility model provides a chair seat, which comprises a shell, a buffer spring, an elastic plate and an elastic pad. The shell is provided with a vertical buffer spring, and the elastic pad is located at the uppermost layer and has a plurality of grooves on its lower end face, which can better fit the human hip and enhance the elastic deformation capacity. The elastic plate comprises a mounting portion, an abutting portion and a deformation portion, and the deformation portion has a hollow portion to increase its elastic deformation capacity. The elastic pad deforms under load and transmits the deformation to the elastic plate, which drives the buffer spring to act, the buffer spring provides cushioning and force feedback, and helps restore when the load is removed. By stacking the elastic pad, the elastic plate and the buffer spring, the grooves and the hollow portions are used to improve the elasticity respectively, and the buffer spring is used to balance the hardness and softness, which combines comfortable wrapping and powerful support, conforms to ergonomics, effectively solves the problems of poor comfort and insufficient support of traditional chair seats, and improves the sitting experience.

[0006] The technical solution of the utility model is as follows:

[0007] A chair seat comprises a shell, a vertical buffer spring is arranged in the shell, an elastic plate and an elastic pad are sequentially stacked on the shell from bottom to top, a lower end surface of the elastic pad is provided with a plurality of recesses recessed from bottom to top, the elastic pad is configured to support and fit the human hips, and the recesses are configured to increase the elastic deformation capacity of the elastic pad; the elastic plate comprises a mounting portion at the outer edge thereof, an abutting portion for abutting against the buffer spring, and a deformation portion between the abutting portion and the mounting portion, the mounting portion is connected with the shell, the buffer spring abuts against the abutting portion, a plurality of hollows are formed in the deformation portion, and the deformation portion is configured to increase the elastic deformation capacity of the elastic plate; the elastic plate is configured such that when the elastic pad deforms in response to a load, the deformation portion deforms through the hollows formed therein, and the abutting portion moves downward relative to the mounting portion and acts on the buffer spring; and the buffer spring is configured to give a buffer and force feedback in response to the load, and to help the elastic plate recover deformation when the load is removed.

[0008] The elastic plate arranged below the elastic pad instead of the traditional hard plate has effectively improved the elastic deformation capacity, and the elastic deformation capacity is further improved after the recesses are arranged, the elastic pad can better fit the human hips, and the deformation can better react on the elastic plate, so that the deformation portion quickly and accurately deforms, and the overall elastic deformation capacity of the chair seat is further increased; after the elastic plate quickly and accurately deforms, the abutting portion can drive the buffer spring to deform to a greater extent, so that the buffer capacity of the buffer spring is exerted, and the comfort and support are increased.

[0009] Specifically, the beneficial effects brought by the elastic pad, the elastic plate and the buffer spring arranged in layers are that the recesses arranged on the elastic pad and the hollows arranged on the elastic plate can respectively increase the elastic deformation capacity, the seat surface can better fit the human hips, the buffer spring is arranged to support the elastic plate to prevent the chair seat from being too soft, the softness is moderate, the elasticity after adjustment is more comfortable, and comfort and support are combined when sitting, so that fatigue caused by the chair seat being too soft is eliminated; the comfort is reflected in the wrapping feeling generated by the elastic deformation of the elastic pad, and the support is reflected in the power feeling and the buffer feeling brought by the buffer spring, the scheme maintains the balance between the two, and conforms to ergonomics.

[0010] In addition to giving elastic buffer, the buffer spring has the following effects: during use of the chair seat, the elasticity of the elastic plate is not enough, fatigue is still generated after long use, and the durability is not enough, the elastic plate is difficult to recover deformation after plastic deformation, and therefore the buffer spring can help the elastic plate to recover deformation and prevent plastic deformation, thereby prolonging the service life.

[0011] As preferred, the total area of the plurality of grooves accounts for 70-90% of the bottom of the elastic pad, and is evenly and spacedly distributed thereon; the total area of the plurality of hollows accounts for 80-90% of the deformation part, and is evenly and spacedly distributed thereon. That is, the grooves almost cover the bottom of the elastic pad, and the hollows almost cover the deformation part, so as to effectively increase the elastic deformation capacity of the whole chair seat.

[0012] As preferred, in the front-rear direction, the middle-rear part of the elastic plate is provided with a first slot extending in the front-rear direction, and in the left-right direction, the first slot is located in the middle of the elastic plate; a second slot is provided on the lower end surface of the elastic pad at the position corresponding to the first slot. The first slot and the second slot are located in the rear half of the chair seat, that is, in the stress position of the hip support part, so as to increase the elastic deformation capacity, produce greater deformation, and more easily produce a depression, and the buffer spring is more easily responsive to give feedback.

[0013] As preferred, four mounting sleeves are arranged in the shell, the four mounting sleeves are arranged in pairs and left-right symmetrically, and the four buffer springs are arranged in the mounting sleeves respectively; the four buffer springs are located in the middle-rear part of the bottom shell; a transition piece is arranged on the two buffer springs on the same side, and the transition piece is in abutment with the abutment part. The buffer spring is also arranged corresponding to the hip position, so that it can more effectively play the buffering effect and the effect of assisting the elastic plate to recover the deformation.

[0014] As preferred, the elastic plate has a middle part bending upward with a curvature, the abutment part is located in the middle-rear part of the elastic plate, the thickness of the transition piece below the abutment part is reduced from front to back; a connecting part is protruded below the abutment part, a connecting slot is arranged on the transition piece, and the connecting part is arranged in the connecting slot.

[0015] As preferred, the edge of the elastic pad extends downward to have a surrounding part, and the surrounding part surrounds the elastic plate. The elastic plate is hidden, and the integration is stronger.

[0016] As preferred, the elastic pad is a sponge.

[0017] As preferred, the elastic plate is plastic.

[0018] As preferred, the buffer spring is a wave spring. The wave spring has higher space utilization, more stable elastic properties and longer service life, and is very suitable for application in the chair seat.

[0019] As preferred, a plurality of mounting columns extending downward are arranged on the elastic plate along the edge contour thereof, a plurality of mounting slots are arranged on the shell correspondingly, and the mounting columns are arranged in the mounting slots and fixedly connected through screws.

[0020] The design starting point, concept and beneficial effects of the utility model with the above technical scheme are as follows:

[0021] 1. The elastic plate arranged below the elastic pad instead of the traditional hard plate has effectively improved the elastic deformation capacity, and the elastic deformation capacity is further improved after the groove is arranged, the human hip can be more fitted, the deformation can be better reacted on the elastic plate, the deformation of the deformation part is quickly and accurately generated, and the overall elastic deformation capacity of the seat is further increased; and after the elastic plate is quickly and accurately deformed, the abutting portion can drive the buffer spring to deform to a greater extent, so that the buffer capacity is exerted, and the comfort and support are increased.

[0022] Specifically, the beneficial effects brought by the laminated arrangement of the elastic pad, the elastic plate and the buffer spring are that the groove is arranged on the elastic pad and the hollow is arranged on the elastic plate, each of which can increase the elastic deformation capacity, the seat surface can be more fitted to the human hip, in order to prevent the seat from being too soft, the buffer spring is arranged to support the elastic plate, the softness is moderate, the elasticity after adjustment is more comfortable, and comfort and support are combined when sitting, and fatigue caused by too soft seat is eliminated; the comfort is embodied in the wrapping feeling generated by the elastic deformation of the elastic pad, and the support is embodied in the power feeling and the buffering feeling brought by the buffer spring, the scheme maintains the balance between the two, and conforms to ergonomics.

[0023] 2. In addition to the elastic buffer, the buffer spring has the following effects: during use of the seat, only the elasticity of the elastic plate is not enough, fatigue will still occur after long use, and the durability is not enough, the elastic plate is difficult to recover after plastic deformation, therefore, the buffer spring can help the elastic plate to recover, prevent plastic deformation, and prolong the service life. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective structural schematic view of the seat in the embodiment of the utility model;

[0025] Figure 2 It is an exploded view of the seat in the embodiment of the utility model;

[0026] Figure 3 It is a sectional view of the seat in the embodiment of the utility model;

[0027] Figure 4 It is a perspective structural schematic view of the buffer spring arranged on the shell in the embodiment of the utility model;

[0028] Figure 5 It is a perspective structural schematic view of the transition piece in the embodiment of the utility model;

[0029] Figure 6 It is a perspective structural schematic view of the elastic plate in the embodiment of the utility model;

[0030] Figure 7 It is a perspective structural schematic view of the elastic pad in the embodiment of the utility model.

[0031] The reference numerals in the attached drawings are as follows: housing 1; buffer spring 2; elastic plate 3; mounting part 31; abutting part 32; deformable part 33; hollow 4; elastic pad 5; surrounding part 51; groove 6; mounting sleeve 7; transition piece 8; connecting groove 81; mounting post 9; connecting part 10; first slot 11; second slot 12; mounting groove 13. Detailed Implementation

[0032] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0034] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] The specific implementation of this utility model is as follows:

[0036] like Figures 1-3 As shown, this utility model provides a chair seat, including a shell 1. A vertical buffer spring 2 is provided inside the shell 1. An elastic plate 3 and an elastic pad 5 are stacked sequentially from bottom to top on the shell 1. The lower end face of the elastic pad 5 has several grooves 6 recessed from bottom to top. The elastic pad 5 is configured to support and conform to the buttocks of a human body. The grooves 6 are configured to increase the elastic deformation capacity of the elastic pad 5. The elastic plate 3 includes a mounting portion 31 located at its outer edge, an abutting portion 32 for abutting the buffer spring 2, and a deformation portion 3 located between the abutting portion 32 and the mounting portion 31. 3. The mounting part 31 is connected to the housing 1. The buffer spring 2 abuts against the abutting part 32. The deformation part 33 has several hollows 4. The deformation part 33 is configured to increase the elastic deformation capability of the elastic plate 3. The elastic plate 3 is configured such that when the elastic pad 5 deforms the elastic plate 3 in response to the load, the deformation part 33 deforms through the hollows 4. The abutting part 32 moves downward relative to the mounting part 31 and acts on the buffer spring 2. The buffer spring 2 is configured to provide buffering and force feedback in response to the load, and assist the elastic plate 3 in restoring its deformation when the load is removed.

[0037] The elastic plate 3 arranged below the elastic pad 5 instead of the traditional hard plate has effectively improved the elastic deformation capability, and the elastic deformation capability is further improved after the groove 6 is arranged, the chair seat can better fit the human hips, the deformation can better react on the elastic plate 3, the deformation part 33 can quickly and accurately deform, and the overall elastic deformation capability of the chair seat is further increased; and after the elastic plate 3 quickly and accurately deforms, the abutting part 32 can more greatly drive the buffer spring 2 to deform, so that the buffer capability is exerted, and the comfort and support are increased.

[0038] Specifically, the beneficial effects brought by the arrangement of the elastic pad 5, the elastic plate 3 and the buffer spring 2 in layers are that the groove 6 is arranged on the elastic pad 5, and the hollow 4 is arranged on the elastic plate 3, each of which can increase the elastic deformation capability, so that the seat surface can better fit the human hips, in order to prevent the chair seat from being too soft, the buffer spring 2 is arranged to support the elastic plate 3, the softness is moderate, the elasticity after the arrangement is more comfortable, and the comfort and support are combined when sitting, and the fatigue caused by the chair seat being too soft is eliminated; the comfort is embodied in the wrapping feeling caused by the elastic deformation of the elastic pad 5, and the support is embodied in the power feeling and the buffer feeling brought by the buffer spring 2, the scheme maintains the balance between the two, and conforms to the ergonomics.

[0039] In addition to the elastic buffer, the buffer spring 2 has the following effects: during the use of the chair seat, only the elasticity of the elastic plate 3 is not enough, fatigue will still be caused after long use, and the durability is not enough, the elastic plate 3 is difficult to recover after plastic deformation, and therefore the buffer spring 2 can help the elastic plate 3 to recover, prevent plastic deformation, and prolong the service life.

[0040] Specifically, as shown in Figures 1-5 The shell 1 is upwardly open and hollow, the inside is provided with the mounting sleeve 7 for arranging the buffer spring 2, the mounting sleeve 7 is upwardly protruded, so that the lower part of the buffer spring 2 can enter the mounting sleeve 7; there are four mounting sleeves 7 in the shell 1, the four mounting sleeves 7 are arranged in two groups and left-right symmetrically, and the four buffer springs 2 are arranged in the four mounting sleeves 7 respectively; the four buffer springs 2 are located at the middle rear part of the bottom shell, that is, the main force position of the hips; the transition piece 8 is arranged on the two buffer springs 2 on the same side, the transition piece 8 is in abutment with the abutting part 32; the buffer spring 2 is arranged corresponding to the position of the hips, so that the buffer effect and the effect of assisting the elastic plate 3 to recover are more effectively exerted; the elastic plate 3 has a middle part bending upwardly with a curvature, the abutting part 32 is located at the middle rear part of the elastic plate 3, and the thickness of the transition piece 8 below the abutting part 32 is reduced from front to back; the connecting part 10 is protruded below the abutting part 32, the connecting groove 81 is formed in the transition piece 8, and the connecting part 10 is arranged in the connecting groove 81, so as to limit the connecting part 10 and the transition piece 8.

[0041] As shown in Figures 3-7As shown, the elastic plate 3 is provided with a plurality of downward extending mounting posts 9 along its edge profile, the mounting posts 9 are arranged at the bottom of the mounting portion 31, and the shell 1 is correspondingly provided with a plurality of mounting grooves 13, the mounting posts 9 are arranged in the mounting grooves 13 and fixedly connected by screws; the elastic pad 5 has a surrounding portion 51 extending downward from its edge, which surrounds the elastic plate 3 therein to hide the elastic plate 3, and the appearance is more visually integrated.

[0042] The total area of the plurality of grooves 6 accounts for 70%-90% of the bottom of the elastic pad 5, and is uniformly distributed thereon; the total area of the plurality of hollows 4 accounts for 80%-90% of the deformation portion 33, and is uniformly distributed thereon; that is, the grooves 6 almost cover the bottom of the elastic pad 5, and the hollows 4 almost cover the deformation portion 33, thereby effectively increasing the overall elastic deformation capacity of the seat. In the front-rear direction, the rear middle portion of the elastic plate 3 is provided with a first slot 11 extending in the front-rear direction, and in the left-right direction, the first slot 11 is located in the middle of the elastic plate 3; a second slot 12 is provided on the lower end surface of the elastic pad 5 at a position corresponding to the first slot 11; the first slot 11 and the second slot 12 are located in the rear half of the seat, that is, in the stress position of the hip supporting portion, thereby increasing the elastic deformation capacity, producing greater deformation, and more easily producing a depression, and the buffer spring 2 is more easily responsive to provide feedback.

[0043] The elastic pad 5 is a sponge; the elastic plate 3 is plastic; the buffer spring 2 is a wave spring; the wave spring has higher space utilization, more stable elastic properties, and longer service life, and is very suitable for application in the seat, specifically, the wave spring has a flat and compact shape, and can provide greater elastic force in the same installation space compared to traditional cylindrical coil springs. This is particularly important in the case of limited internal space in the seat, effectively arranging the buffer components without increasing the volume of the shell 1, optimizing the overall structural design of the seat, making the seat more lightweight and aesthetically pleasing, while ensuring sufficient cushioning performance. When the wave spring is under load, its elastic force changes relatively smoothly and linearly. This means that regardless of the size of the pressure applied during the user's sitting process, the seat can provide uniform and stable support force and cushioning effect, avoiding discomfort caused by sudden changes in elastic force, providing a more stable and comfortable sitting experience for the user, meeting the ergonomic requirements for seat comfort. The wave spring has high fatigue strength and long service life. In the case of frequent use of the seat, it can withstand multiple compression and rebound cycles without easily failing, reducing the frequency of replacing components due to spring fatigue damage, reducing maintenance costs, and ensuring the performance stability and reliability of the seat during long-term use.

Claims

1. A chair seat, characterized by: The shell is internally provided with vertical buffer springs, and the shell is sequentially stacked from bottom to top with an elastic plate and an elastic pad, the lower end surface of the elastic pad is provided with a plurality of recesses recessed from bottom to top, the elastic pad is configured to support and fit the human buttocks, and the recesses are configured to increase the elastic deformation capacity of the elastic pad; the elastic plate includes a mounting portion at its outer edge, an abutting portion for abutting the buffer spring, and a deformation portion between the abutting portion and the mounting portion, the mounting portion is connected with the shell, the buffer spring abuts on the abutting portion, a plurality of hollows are formed on the deformation portion, and the deformation portion is configured to increase the elastic deformation capacity of the elastic plate; the elastic plate is configured to deform the deformation portion through the hollows thereon when the elastic pad deforms the elastic plate in response to the load, and the abutting portion moves downward relative to the mounting portion and acts on the buffer spring; the buffer spring is configured to respond to the load to give buffer and force feedback, and to assist the elastic plate to recover deformation when the load is removed.

2. The chair seat of claim 1, wherein: The total area of the plurality of recesses accounts for 70%-90% of the bottom of the elastic pad, and is uniformly distributed thereon; the total area of the plurality of hollows accounts for 80%-90% of the deformation portion, and is uniformly distributed thereon.

3. The chair seat of claim 1, wherein: In the front-rear direction, the middle-rear portion of the elastic plate is provided with a first slot extending in the front-rear direction, and in the left-right direction, the first slot is located in the middle portion of the elastic plate; a second slot is formed on the lower end surface of the elastic pad corresponding to the position of the first slot.

4. The chair seat of claim 1, wherein: The shell is internally provided with four mounting sleeves, the four mounting sleeves are arranged in two groups and left-right symmetrically, the buffer springs are four in total and are arranged in the mounting sleeves respectively; the four buffer springs are located in the middle-rear portion of the bottom shell; a transition piece is arranged on the two buffer springs on the same side, and the transition piece abuts against the abutting portion.

5. A seat as claimed in claim 4, characterised in that: The elastic plate has a middle portion curved upward with a curvature, the abutting portion is located in the middle-rear portion of the elastic plate, and the thickness of the transition piece below the abutting portion decreases from front to back; a connecting portion is protruded below the abutting portion, and a connecting groove is formed on the transition piece, and the connecting portion is arranged in the connecting groove.

6. The chair seat of claim 1, wherein: The edge of the elastic pad extends downward to have a surrounding portion, and the surrounding portion surrounds the elastic plate therein.

7. The chair seat of claim 1, wherein: The elastic pad is a sponge.

8. The chair seat of claim 1, wherein: The elastic plate is plastic.

9. The chair seat of claim 1, wherein: The buffer spring is a wave spring.

10. The chair seat of claim 1, wherein: A plurality of mounting columns extending downward are arranged on the elastic plate along the edge contour thereof, a plurality of mounting grooves are correspondingly arranged on the shell, the mounting columns are arranged in the mounting grooves and are fixedly connected by screws.

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