Seat and vehicle

Abstract

The utility model relates to the technical field of automobile seats, in particular to a seat and a vehicle, the seat comprises a framework, a first elastic layer, a second elastic layer and a third elastic layer, the first elastic layer, the second elastic layer and the third elastic layer are sequentially laid on the framework from top to bottom to form a seat cushion body, and the third elastic layer is the side, close to the framework, of the seat cushion; the hardness of the first elastic layer, the hardness of the second elastic layer and the hardness of the third elastic layer are sequentially increased. The influence of the vibration quantity of the automobile on the upper surface is small, and the requirements for the comfort of short-time riding and the supporting stability of long-time riding can be met at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a seat and a vehicle. Background Art

[0002] With the continuous improvement of living standards, consumers pay more and more attention to the riding experience of cars, and the comfort of car seats is also valued by more and more people, becoming one of the factors consumers consider when choosing a car;

[0003] The existing seat cushions include main body sponge and comfort sponge. When the car is driving, the vibration is large, which cannot bring consumers a better comfort experience and cannot simultaneously meet the comfort of the seat for short-term riding and the support stability for long-term riding. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a seat and a vehicle, the upper surface of which is less affected by the vibration of the car and can simultaneously meet the comfort of short-term riding and the support stability of long-term riding.

[0005] To achieve the above-mentioned object and other related objects, the utility model provides a seat, comprising a frame, and at least a first elastic layer, a second elastic layer and a third elastic layer sequentially laid on the frame from top to bottom to form a seat cushion body, wherein the third elastic layer is a side of the seat cushion close to the frame;

[0006] The hardness of the first elastic layer, the second elastic layer and the third elastic layer increases in sequence.

[0007] In an embodiment of the present invention, the hardness of the first elastic layer is between 1.8 kPa and 2.2 kPa, the hardness of the second elastic layer is between 90 N and 145 N, and the hardness of the third elastic layer is between 130 N and 180 N.

[0008] In one embodiment of the present invention, the first elastic layer is a slow-rebound sponge with a rebound rate of 30%-40%, and the second elastic layer and the third elastic layer are both high-rebound sponges with a rebound rate greater than 60%.

[0009] In one embodiment of the present invention, the density of the first elastic layer and the second elastic layer is greater than 59 kg / m 3 The density of the third elastic layer is greater than 64 kg / m 3 .

[0010] In an embodiment of the present invention, the thicknesses of the first elastic layer, the second elastic layer and the third elastic layer increase sequentially.

[0011] In one embodiment of the present invention, the thickness of the first elastic layer is greater than 10 mm, the thickness of the second elastic layer is between 20 mm and 30 mm, the thickness of the third elastic layer is greater than 54 mm, and the total thickness of the first elastic layer, the second elastic layer and the third elastic layer is greater than 84 mm.

[0012] In one embodiment of the utility model, the outer side of the seat cushion is covered with a face cover;

[0013] The seat cushion is provided with a plurality of interconnected tightening grooves, and the tightening grooves are configured to allow a part of the structure of the face cover to be inserted therein for tightening.

[0014] In an embodiment of the present invention, a connecting piece for connecting the face cover and the internal structure of the seat cushion is provided in the tightening groove.

[0015] In an embodiment of the utility model, a plurality of ventilation holes are provided on the seat cushion, at least some of the ventilation holes penetrate the first elastic layer, the second elastic layer and the third elastic layer, and at least some of the ventilation holes are connected to the automobile ventilation system.

[0016] In view of the above shortcomings of the prior art, an object of the present invention is to provide a vehicle including the seat.

[0017] In summary, the utility model uses the first elastic layer to adapt to the softness requirements during short-term riding, uses the second elastic layer to adapt to the balanced support requirements during medium-term riding, and uses the third elastic layer to achieve stable support for long-term sitting; in a short period of time, the top first elastic layer can provide immediate comfort; and when riding for a long time, the third elastic layer of the bottom layer of the seat, which is harder, can provide necessary support to prevent discomfort caused by body sinking, so that the seat cushion can ensure both short-term riding comfort and long-term riding comfort requirements. By adding the second elastic layer between the first elastic layer and the third elastic layer, the balance between the short-term riding comfort requirement of a soft seat cushion and the long-term riding support comfort requirement of the bottom support of the seat cushion can be better solved. The second elastic layer can better filter vibration transmission under dynamic conditions, thereby improving the riding comfort of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a schematic diagram of the partial structure of the seat of the utility model;

[0020] Figure 2 It is a side sectional view of the seat cushion of the utility model;

[0021] Figure 3 It is a top view after cutting off the third elastic layer of the utility model;

[0022] Explanation of component numbers: frame 1, seat cushion 2, hanging groove 20, first elastic layer 21, second elastic layer 22, third elastic layer 23, face cover 24, ventilation hole 25, groove 26, barb 27, sheet metal 3, foot rest 4. DETAILED DESCRIPTION

[0023] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other without conflict. It should also be understood that the terms used in the embodiments of the present invention are intended to describe specific implementation schemes, rather than to limit the scope of protection of the present invention. The test methods for which specific conditions are not specified in the following examples are usually carried out under conventional conditions or under the conditions recommended by the manufacturers.

[0024] See also Figures 1 to 3 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0025] When numerical ranges are given in the embodiments, it should be understood that unless otherwise specified in the present invention, both endpoints of each numerical range and any value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present invention are in accordance with the prior art mastery of those skilled in the art and the description of the present invention, and any prior art methods, equipment and materials similar or equivalent to the methods, equipment and materials in the embodiments of the present invention can also be used to implement the present invention.

[0026] The upper, lower, left and right sides of the full text of this case are attached to the instruction manual. Figure 1 As a benchmark.

[0027] See also Figure 1-2 The utility model provides a seat, comprising a frame 1, and at least a first elastic layer 21, a second elastic layer 22 and a third elastic layer 23 sequentially laid on the frame 1 from top to bottom to form a main body of a seat cushion 2, wherein the third elastic layer 23 is a side of the seat cushion 2 close to the frame 1;

[0028] The hardness of the first elastic layer 21 , the second elastic layer 22 and the third elastic layer 23 increases in sequence.

[0029] It should be noted that the first elastic layer 21, the second elastic layer 22 and the third elastic layer 23 are all made of foaming materials, and the first elastic layer 21 is mainly used to provide softness and comfort for the surface of the seat cushion 2, the second elastic layer 22 is mainly used to provide vibration reduction for the seat cushion 2, and the third elastic layer 23 is mainly used to provide support for the bottom of the seat cushion 2. The material of the first elastic layer 21 can be made of polyurethane material, such as polyurethane sponge, which has the characteristics of softness, good elasticity, wear resistance, and aging resistance. The pore structure of polyurethane sponge can make itself have good water absorption and air permeability, which is conducive to perspiration and ventilation, and improves the comfort of use. The material of the second elastic layer 22 and the third elastic layer 23 can be high-density polyurethane sponge, wherein the density of high-density polyurethane sponge is usually 30kg / m 3 Up to 100kg / m 3 It should be understood that the first elastic layer 21 and the second elastic layer 22 may also be high elastic sponge or memory sponge, polyether sponge, the first elastic layer 21 may also be natural latex with excellent elasticity and softness and relatively skin-friendly, and the third elastic layer 23 may also be chloroprene rubber with waterproofness and elasticity.

[0030] The first elastic layer 21 is used to meet the softness requirements for short-term riding; the second elastic layer 22 is used to meet the balanced support requirements for medium-term riding; the third elastic layer 23 is used to achieve stable support for long-term sitting; in a short period of time, the soft foam material of the top layer can provide immediate comfort; when riding for a long time, the harder foam material of the bottom layer of the seat can provide necessary support to prevent discomfort caused by body settlement, so that the seat cushion 2 can ensure both short-term riding comfort and long-term riding comfort requirements. By adding the second elastic layer 22 between the first elastic layer 21 and the third elastic layer 23, the balance between the short-term riding comfort requirement that the seat cushion 2 should be soft and the long-term riding support comfort requirement that the bottom layer of the seat cushion 2 should have support can be better solved. The second elastic layer can better filter vibration transmission under dynamic conditions, thereby improving the riding comfort of the seat.

[0031] See also Figure 1-2 As an optional embodiment of the present invention, the hardness of the first elastic layer 21 is between 1.8 kpa and 2.2 kpa, the hardness of the second elastic layer 22 is between 90 N and 145 N, and the hardness of the third elastic layer 23 is between 130 N and 180 N.

[0032] It should be noted that, according to the GB / T18942.1 standard, the hardness of the first elastic layer 21 is between 1.8 kpa and 2.2 kpa, such as 1.8 kpa, 1.9 kpa, 2.0 kpa, and 2.2 kpa. According to the GB / T10807A method, the hardness of the second elastic layer 22 and the third elastic layer 23 is calculated by indenting 25% of the thickness. Preferably, the hardness of the second elastic layer 22 is between 90 N and 145 N, such as 90 N, 100 N, 110 N, 120 N, 130 N, or 145 N. Preferably, the hardness of the third elastic layer 23 is between 130 N and 180 N, such as 130 N, 140 N, 150 N, 160 N, 170 N, or 180 N.

[0033] It should be further explained that the first elastic layer 21 has a relatively low hardness, which can provide an instant sense of comfort when touching the seat, and is relatively soft, which can ensure that the passenger has a good initial contact experience when sitting on the seat; the hardness of the second elastic layer 22 is in the medium range, and this layer can add some support on the basis of providing comfort, so as to prevent the passenger from feeling the softness of the first elastic layer 21 and then immediately touching the harder third elastic layer 23 or the seat frame 1; the third elastic layer 23 has a higher hardness, which provides solid support, keeps the body stable and helps absorb vibrations and shocks during vehicle driving, reducing fatigue after long-term driving; the use of a multi-layer structure with different hardness can make the seat cushion 2 durable and resist deformation and wear caused by long-term use, and the multi-layer structure helps to distribute the passenger's weight and reduce pressure points, thereby reducing pain and discomfort in certain parts of the body. At the same time, in the event of a collision or sudden braking, the multi-layer elastic layer structure can better absorb energy and provide additional safety protection, which meets the passenger's riding needs under long-term driving and different road conditions.

[0034] See also Figure 1-2 As an optional embodiment of the present invention, the first elastic layer 21 is a slow-rebound sponge with a rebound rate of 30%-40%, and the second elastic layer 22 and the third elastic layer 23 are both high-rebound sponges with a rebound rate greater than 60%.

[0035] It should be noted that the rebound rate indicates the ability of a material to recover from a deformed state to its original shape and size. Slow-rebound sponge can deform to the shape of the object under pressure and body temperature, and slowly return to its original state after the external force is removed. Slow-rebound sponge, also known as "memory sponge", can disperse pressure points, thereby reducing the pressure on a certain part of the body, so that the human body will feel the same pressure at any point on the slow-rebound sponge, thereby providing comfort to the human body and helping blood circulation. High-elastic sponge, also known as high-rebound sponge, is a foaming material whose main characteristics are good elasticity and pressure resistance. It can quickly return to its original shape after being compressed by external force. This material has strong support, can withstand repeated compression and release, and is not easy to deform. A slow-rebound sponge with a rebound rate of 30%-40% will not rebound completely and quickly after receiving pressure, but only 30%-40% of the part will rebound quickly, and the specific rebound rate can also be 30% or 32% or 35% or 37% or 40%, and the remaining part will recover at a relatively slow speed, so that the first elastic layer 21 can adjust its shape according to the weight and body shape of the user, disperse the pressure points, reduce the pressure points, provide comfort and relieve pain. A high-elastic sponge with a rebound rate greater than 60% can recover at least 60% of its original shape or thickness in a short time after receiving pressure and releasing, and the specific rebound rate can also be 60% or 65% or 70% or 80%, and the remaining part will recover at a relatively slow speed. A high-elastic sponge with a high rebound rate can provide more lasting comfort and support, and is not prone to long-term collapse or deformation.

[0036] See also Figure 1-2 As an optional embodiment of the present invention, the density of the first elastic layer 21 and the second elastic layer 22 are both greater than 59 kg / m 3 The density of the third elastic layer 23 is greater than 64 kg / m 3 .

[0037] It should be noted that the density of the first elastic layer 21 and the second elastic layer 22 is greater than 59 kg / m 3 , such as density is 60kg / m 3 or 61kg / m 3 or 62kg / m 3 or 63kg / m 3 The density of the third elastic layer 23 is greater than 64kg / m 3 , such as density is 65kg / m 3 or 66kg / m 3 or 70kg / m 3 or 75kg / m 3; This arrangement can prevent the seat cushion 2 from collapsing easily even under long-term load, thereby maintaining good support for the body. This arrangement can also provide a moderately soft and hard touch and sufficient body support, reducing fatigue after long-term riding. This arrangement also helps to more evenly distribute the passenger's weight, reduce pressure concentration points, and make the riding experience more comfortable, especially during long-distance driving.

[0038] See also Figure 1-2 As an optional embodiment of the present invention, the thicknesses of the first elastic layer 21, the second elastic layer 22 and the third elastic layer 23 increase sequentially.

[0039] It should be noted that the first elastic layer 21 located at the top layer is thinner and softer, which can provide a soft feeling, enable the surface of the seat cushion 2 to better fit the user's body shape, and reduce local pressure points; the third elastic layer 23 of the bottom layer is thicker and harder, and can support the upper layer, ensuring that the seat cushion 2 will not collapse easily, and provide the necessary supporting force to adapt to long-term use and bear more weight; the second elastic layer 22 of the middle layer acts as a transition layer, which can play a buffering role between the softness of the upper layer and the support of the bottom layer, helps to disperse the pressure caused by the weight of the human body, and solves the problem of excessive concentration of pressure points, so that the seat cushion 2 as a whole has both softness and stability.

[0040] See also Figure 1-2 As an optional embodiment of the present invention, the thickness of the first elastic layer 21 is greater than or equal to 10 mm, such as 10 mm or 12 mm or 14 mm or 18 mm or 20 mm, the thickness of the second elastic layer 22 is between 20 mm and 30 mm, such as 20 mm or 22 mm or 24 mm or 27 mm or 30 mm, the thickness of the third elastic layer 23 is greater than or equal to 54 mm, such as 54 mm or 58 mm or 60 mm or 65 mm, and the total thickness of the first elastic layer 21, the second elastic layer 22 and the third elastic layer 23 is greater than 84 mm, such as the total thickness is equal to 85 mm.

[0041] It should be noted that by setting different thicknesses, the seat cushion 2 can have different levels of pressure dispersion characteristics. The first elastic layer 21 provides an initial soft contact surface when the thickness is greater than 10 mm, the second elastic layer 22 of medium thickness provides further pressure absorption, and the third elastic layer 23 greater than 54 mm provides a solid foundation and strong support for the entire seat cushion 2. The seat cushion 2 with a total thickness greater than 84 mm can give the user a stable and lasting support performance and reduce fatigue, especially when sitting for a long time (such as long-distance driving). The design of different thicknesses of the seat cushion 2 can accommodate users of different weights. Users with heavier weight will produce deeper pressure on the seat cushion 2, and the three-layer structure of the seat cushion 2 can intervene in support one after another to ensure that the seat cushion 2 always provides appropriate support.

[0042] See also Figure 1-2 Furthermore, the distance between the upper surface of the seat cushion 2 and the frame 1 is greater than 84 mm. To achieve the best comfort effect, the thickness of the first elastic layer 21 is selected to be between 10-20 mm. The upper limit is selected as much as possible according to the thickness of the design space. The density is ≥60 kg / m 3 , providing a soft feel to the surface.

[0043] See also Figure 1-3 As an optional embodiment of the present utility model, the outer side of the seat cushion 2 is covered with a face cover 24;

[0044] The seat cushion 2 is provided with a plurality of interconnected tightening grooves 20 , and the tightening grooves 20 are configured to allow a portion of the structure of the face cover 24 to be inserted therein for tightening.

[0045] See also Figure 1-3 Furthermore, at least part of the tightening groove 20 is connected to the third elastic layer 23 , and part of the structure of the face cover 24 extends into at least part of the tightening groove 20 and is connected to the third elastic layer 23 .

[0046] It should be noted that, on the one hand, the tightening grooves 20 can improve the comfort and ventilation performance of the surface of the car seat. At the same time, these tightening grooves 20 have a certain friction with the passenger's body after the passenger sits, which has a massage effect to a certain extent, which helps to reduce the pressure and fatigue caused by long-term car sitting. In addition, by adding the tightening grooves 20, the air permeability of the car seat can be improved, and the accumulation of sweat can be reduced, thereby improving the riding comfort. On the other hand, part of the tightening grooves 20 form a connection space between the face cover 24 and the third elastic layer 23, so that the face cover 24 is conveniently fixed to the third elastic layer 23. The elastic layer 23 is conducive to the flatness of the face cover 24 on the car seat. For example, when the face cover 24 on the car seat is wrinkled, by inserting part of the face cover 24 into the tightening groove 20, the tightening groove 20 can help the face cover 24 to fit tightly against the seat cushion 2, avoiding wrinkles and looseness, and maintaining the appearance of the seat cushion 2 beautiful and neat; at the same time, the tightening groove 20 can firmly fix the face cover 24 on the seat cushion 2 to prevent the face cover 24 from sliding on the surface of the seat cushion 2, ensuring the stability and safety of the user, and the tightening groove 20 can allow the tension of the face cover 24 to be adjusted to adapt to seat cushions 2 of different thicknesses and sizes.

[0047] Furthermore, the seat cushion 2 of the present case includes a first elastic layer 21 , a second elastic layer 22 and a third elastic layer 23 , and the first elastic layer 21 , the second elastic layer 22 and the third elastic layer 23 are not the cover 24 .

[0048] See also Figure 1-3 Furthermore, at least part of the tightening grooves 20 are arranged along the length direction of the vehicle, and at least part of the tightening grooves 20 are arranged along the width direction of the vehicle; in the direction from the top of the vehicle to the bottom of the vehicle, the connected tightening grooves 20 are arranged as a whole in at least one trapezoidal shape or at least one square shape, so that the face cover 24 in the enclosed area of ​​the trapezoidal or square shape of the tightening grooves 20 can be tightened, so that the face cover 24 on the seat surface can remain neat, orderly and beautiful.

[0049] See also Figure 1-3 As an optional embodiment of the present invention, a connecting piece for connecting the face cover 24 and the internal structure of the seat cushion 2 is provided in the tightening groove 20 .

[0050] It should be noted that the face cover 24 and the seat cushion 2 are connected by the connector, so that the face cover 24 is fixed, which is conducive to the arrangement of the face cover 24. The type of connector can be selected according to actual use requirements, such as the edge of the face cover 24 can be equipped with an elastic rope or rubber band, which can be stretched and hooked or inserted into the tightening groove 20 to achieve tight fixation; for example, a strap is sewn on the edge of the face cover 24, and the strap passes through the tightening groove 20, and then buckled or tied for fixation; for example, the Velcro on one side is fixed at the tightening groove 20, and the other side is fixed at the corresponding position of the face cover 24, and the two sides are bonded to achieve fixation, such as the face cover 24 can also use plastic fasteners or metal snaps to connect with the tightening groove 20, press or snap in to fix the face cover 24. Further, the connector can also be a C-shaped strip connecting the inner wall of the tightening groove 20 and the face cover 24.

[0051] See also Figure 1-3 As an optional embodiment of the utility model, the seat cushion 2 is provided with a plurality of ventilation holes 25, at least some of the ventilation holes 25 penetrate the first elastic layer 21, the second elastic layer 22 and the third elastic layer 23, and at least some of the ventilation holes 25 are connected to the automobile ventilation system.

[0052] It should be noted that by connecting the ventilation system below the seat cushion 2, the car air conditioning or ventilation system is combined with the car seat to provide seat heating, cooling or ventilation functions. For example, the cooling and heating functions of the seat can provide additional comfort, making passengers feel comfortable regardless of external climate conditions. The cooling function can be used to avoid sweat in hot summer, and the seat can be heated to provide warmth in cold winter. For drivers or passengers with certain health problems such as back pain, warm seats may help alleviate symptoms. In addition, ventilated seats also play a role in preventing the accumulation of bacteria and odors; and seats with ventilation and heating functions can increase the overall luxury and advanced feeling of the vehicle.

[0053] See also Figure 1 The utility model provides a vehicle, comprising the seat.

[0054] It should be noted that the vehicle with the seat is within the protection scope of this case.

[0055] Furthermore, the first elastic layer 21 is located at the top layer, including a slow-rebound sponge with a rebound rate of 30%-40%, and a hardness between 1.8kpa and 2.2kpa, which is used to provide an immediate soft feeling when the user uses it for the first time and gradually adapt to the user's body shape to meet the comfort requirements of short-term riding; the second elastic layer 22 is immediately below the first elastic layer 21, including a high-elastic sponge with a rebound rate greater than 60%, and a hardness between 90N and 145N, which is combined with the first elastic layer 21 to provide medium support force to ensure that the user can still feel appropriate support and comfort after a long period of use of the seat cushion 2; the third elastic layer 23 is located at the bottom layer, including a high-elastic sponge with a rebound rate greater than 60%, and a hardness between 130N and 180N, and has a greater than 64kg / m 3 The density of the first elastic layer 21 and the second elastic layer 22 is greater than 59 kg / m 3 , to ensure that the first elastic layer 21 and the second elastic layer 22 have sufficient supporting force while providing a soft feeling, so that the seat cushion 2 can work together to meet the softness requirements in a short period of time and the support stability requirements for long-term riding.

[0056] For further information, see Figure 1 The seat cushion 2 is fixedly connected to the frame 1 via a sheet metal part 3, and a barb 27 for hooking the face cover 24 is provided on the sheet metal part 3 or the third elastic layer 23; the third elastic layer 23 is fixedly connected to the sheet metal part 3 via a binding rope.

[0057] It should be noted that the bottom of the seat cushion 2 can be supported by the sheet metal 3, and the setting of the barb 27 can facilitate the installation and assembly of the seat cover 24, thereby improving the efficiency of the installation and assembly; the flexible member is a restraining rope or a restraining belt or an elastic rope. Since the third elastic layer 23 has certain elasticity and flexibility, it is more appropriate to fix the third elastic layer 23 and the sheet metal 3 by a flexible member, so that the flexible member can deform along with the deformation of the third elastic layer 23, and can better fix the support layer on the sheet metal 3.

[0058] For further information, see Figure 1 The sheet metal part 3 is fixed to the seat frame 1 by fasteners such as screws or bolts to achieve a stable installation.

[0059] For further information, see Figure 1 The car seat also includes a footrest 4 , which is installed on the lower side of the sheet metal part 3 .

[0060] For further information, see Figure 1A groove 26 for limiting the movement of the second elastic layer 22 and / or the first elastic layer 21 is provided on the upper part of the third elastic layer 23 .

[0061] It should be noted that, by providing the groove 26 , displacement of the second elastic layer 22 and / or the first elastic layer 21 relative to the third elastic layer 23 can be avoided or reduced, thereby improving the installation stability among the first elastic layer 21 , the second elastic layer 22 and the third elastic layer 23 .

[0062] In summary, the utility model effectively overcomes some practical problems in the prior art and thus has high utilization value and use significance.

[0063] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A seat, characterized in that: Including skeleton; and a first elastic layer, a second elastic layer and a third elastic layer which are sequentially laid on the frame from top to bottom to form a seat cushion body, wherein the third elastic layer is a side of the seat cushion close to the frame; The hardness of the first elastic layer, the second elastic layer and the third elastic layer increases in sequence.

2. The seat according to claim 1, characterized in that: The hardness of the first elastic layer is between 1.8 kPa and 2.2 kPa, the hardness of the second elastic layer is between 90 N and 145 N, and the hardness of the third elastic layer is between 130 N and 180 N.

3. The seat according to claim 1, characterized in that: The first elastic layer is a slow-rebound sponge with a rebound rate of 30%-40%, and the second elastic layer and the third elastic layer are both high-rebound sponges with a rebound rate greater than 60%.

4. The seat according to claim 1, characterized in that: The density of the first elastic layer and the second elastic layer is greater than 59 kg / m 3 The density of the third elastic layer is greater than 64 kg / m 3 .

5. The seat according to claim 1, characterized in that: The thicknesses of the first elastic layer, the second elastic layer and the third elastic layer increase in sequence.

6. The seat according to claim 5, characterized in that: The thickness of the first elastic layer is greater than 10 mm, the thickness of the second elastic layer is between 20 mm and 30 mm, the thickness of the third elastic layer is greater than 54 mm, and the total thickness of the first elastic layer, the second elastic layer and the third elastic layer is greater than 84 mm.

7. The seat according to claim 1, characterized in that: The outer side of the seat cushion is covered with a face cover; The seat cushion is provided with a plurality of interconnected tightening grooves, and the tightening grooves are configured to allow a part of the structure of the face cover to be inserted therein for tightening.

8. The seat according to claim 7, characterized in that A connecting piece connecting the face cover and the internal structure of the seat cushion is arranged in the tightening groove.

9. The seat according to claim 1, characterized in that: The seat cushion is provided with a plurality of ventilation holes, at least some of the ventilation holes penetrate the first elastic layer, the second elastic layer and the third elastic layer, and at least some of the ventilation holes are connected to the automobile ventilation system.

10. A vehicle, characterized in that: A seat comprising the seat described in any one of claims 1 to 9.

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