Seat with elastic support function

Abstract

A seat with elastic support function, including the bottom disc installed in the top of the chair leg, the rear of the bottom disc two sides extend to the top of the front and install two front tilt plate, the top of the front tilt plate and the seat plate are connected; The front of the bottom disc two sides extend to the top of the rear and install two rear tilt plate, the top of the rear tilt plate and the seat plate are connected; The front tilt plate and the rear tilt plate form the cross support structure between the bottom disc and the seat plate. The beneficial effects of the utility model are: the front tilt plate and the rear tilt plate of the utility model form the cross support structure between the bottom disc and the seat plate. More importantly, these plate pieces are made of elastic steel plate, which gives the entire support structure inherent elastic deformation ability. Significantly improve the riding comfort of the seat, reduce the fatigue feeling brought by long time riding.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, specifically a chair with elastic support function. Background Technology

[0002] As an indispensable piece of furniture in daily life, the design and function of chairs directly affect user comfort and product durability. Traditional chair structures generally employ a rigid connection between the chair legs and the seat. For example, the chair legs are typically fixed directly to the bottom of the seat using bolts, welding, or mortise and tenon joints, forming a relatively fixed support frame. This rigid connection method can provide basic stable support in most cases, meeting daily usage needs.

[0003] However, as people's demands for seat comfort and lifespan increase, the shortcomings of traditional rigid connections are becoming increasingly apparent.

[0004] Firstly, in terms of comfort, traditional chairs lack cushioning and elastic structures. When users sit down, stand up, or maintain a seated posture for a long time, the seat support is often direct and lacks flexibility. This can easily lead to a stiff sitting experience and fail to effectively distribute body pressure. Especially under different weights or sitting postures, users may feel localized pressure, thus reducing seating comfort and potentially causing fatigue or discomfort with prolonged use.

[0005] Secondly, regarding structural durability, the rigid connection between the traditional chair legs and seat is one of the areas where the stress is most concentrated in the entire seat structure. When the seat bears the user's weight, the shift in the center of gravity caused by changes in body posture, and the unavoidable impacts during daily use (such as suddenly sitting down), these loads are directly transmitted to the connection point. Under prolonged and repeated stress, stress concentration is prone to occur at the connection point. Specifically, this manifests as follows: Deformation and damage at connection points: Bolted connections may experience loose threads, stripping, or even bolt breakage; welded joints may experience weld cracking; mortise and tenon joints may loosen or fall off due to wood shrinkage or uneven stress. Such deformation or damage will directly lead to a decrease in the stability and safety of the seat.

[0006] Material fatigue: Materials near the connection point, whether metal, wood or plastic, are prone to fatigue damage under repeated stress-unstress cycles. Microcracks gradually expand, eventually leading to structural failure.

[0007] Noises and shaking: If the connection points become slightly loose or deformed, the seat may produce annoying noises (such as creaking) during use, accompanied by noticeable shaking, which seriously affects the user experience.

[0008] Shortened lifespan: The aforementioned problems combined limit the lifespan of traditional rigid-connected seats, especially in public places or high-frequency use environments, where the damage rate is higher and maintenance costs increase accordingly. Therefore, further improvements are necessary. Utility Model Content

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a seat with elastic support that is simple in structure, low in manufacturing cost, flexible, can effectively disperse stress, and is more comfortable to ride in.

[0010] The purpose of this utility model is achieved in the following way: a seat with elastic support function, including a chassis installed on the top of the seat legs, two forward tilting plates extending forward and upward on both sides of the rear of the chassis, and the top of the forward tilting plates being connected to the seat plate. Two tilting plates are installed on the front two sides of the chassis, tilting upwards and backwards, with the top of the tilting plates connected to the seat plate. The forward and backward tilting plates form a cross-support structure between the chassis and the seat plate.

[0011] Furthermore, the chassis extends rearward to a rear support seat, and the bottom of the forward tilting plate is connected to the rear support seat.

[0012] Furthermore, a front support extends forward from the front of the chassis, and the bottom of the rear tilt plate is connected to the front support.

[0013] Furthermore, the aforementioned tilting plates are connected as a whole by crossbeams, and the crossbeams and the tilting plates on both sides are distributed in an "n" shape.

[0014] Furthermore, the top of the aforementioned forward tilting plate is provided with two outwardly extending tilting plates, which are distributed in an "L" shape with the forward tilting plate.

[0015] Furthermore: the forward and backward tilting plates are connected to the chassis by bolts, and the forward and backward tilting plates are connected to the seat plate by bolts.

[0016] Furthermore, the aforementioned forward and backward tilting plates are made of elastic steel plates.

[0017] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0018] 2. The forward-tilting plate and the rear-tilting plate used in this utility model form a cross-support structure between the chassis and the seat plate. More importantly, these plates are made of elastic steel plates, giving the entire support structure an inherent elastic deformation capability. When the user sits down, the elastic steel plate can undergo moderate elastic deformation under force, rather than rigidly supporting like a traditional connection. This elastic deformation acts like a built-in "shock absorption system," effectively absorbing and dispersing the impact force during seating, and providing soft and dynamic support according to the user's weight and posture. This makes the seating experience less rigid and more in line with the human body's curves, significantly improving the seat's comfort and reducing fatigue from long-term seating.

[0019] 3. Because the forward and backward tilt plates are made of elastic steel plates and form an elastic cross-support between the chassis and the seat plate, their function is equivalent to inserting a flexible buffer layer between the rigid chassis and the seat plate. This buffering effect effectively avoids problems such as material fatigue, bolt loosening, and structural cracking caused by stress concentration at traditional rigid connection points. The connecting components operate under smaller stress cycles, greatly extending their service life and improving the overall durability and reliability of the seat.

[0020] 4. The cross-support structure formed by the forward and backward tilting plates provides elasticity while ensuring good stability and load-bearing capacity of the seat. This design has inherent geometric stability, effectively resisting loads from different directions. At the same time, this dynamic cross-structure design also brings a unique visual aesthetic and modern feel to the seat, enhancing the product's market competitiveness. Attached Figure Description

[0021] Figure 1 , 2 This is a schematic diagram of the rear structure of the hidden seat plate in this utility model.

[0022] Figure 3 This is a rendering of the final assembly of this utility model.

[0023] Explanation of reference numerals in the attached diagram: 1. Chair leg; 2. Chassis; 21. Rear support seat; 22. Front support seat; 3. Forward tilt plate; 31. Outward tilt plate; 4. Seat plate; 5. Rear tilt plate; 51. Crossbeam. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. A seat with elastic support function includes a chassis 2 installed on the top of the seat leg 1, and two forward tilting plates 3 extending forward and upward on both rear sides of the chassis 2. The top of the forward tilting plates 3 is connected to the seat plate 4. Two tilting plates 5 are installed on the front two sides of the chassis 2, tilting upwards and backwards. The top of the tilting plates 5 is connected to the seat plate 4. The forward tilting plate 3 and the rear tilting plate 5 form a cross support structure between the chassis 2 and the seat plate 4.

[0025] In this embodiment: when a user sits on the seat plate 4, the seat plate 4 bears the weight of the human body, and this load is transmitted to these two sets of plates through its connection with the forward tilt plate 3 and the rear tilt plate 5. The forward tilt plate 3 and the rear tilt plate 5 are connected between the chassis 2 and the seat plate 4 in a cross configuration, forming a geometrically stable support system. Since the forward tilt plate 3 extends forward and upward from the rear of the chassis 2, while the rear tilt plate 5 extends backward and upward from the front of the chassis 2, the two sets of plates intersect or are close to each other in space, allowing the force to be transmitted and distributed along a closed and resilient path.

[0026] The cross-bracing structure possesses inherent geometric stability, effectively resisting pressure from different directions and ensuring the seat remains stable and resistant to swaying or deformation under various sitting postures. Furthermore, the two sets of plates share the load, effectively enhancing the overall load-bearing capacity.

[0027] In one embodiment: the chassis 2 extends rearward to a rear support 21, and the bottom of the tilting plate 3 is connected to the rear support 21.

[0028] In this embodiment, the rear support 21, as a structure extending rearward from the chassis 2, provides an additional connection point or support surface for the bottom of the inclinator 3. When a load is transferred to the inclinator 3, its bottom transmits the force to the chassis 2 through the rear support 21. This extended design can increase the strength and stability of the connection and may adjust the tilt angle and effective length of the inclinator 3, thereby affecting the overall elastic characteristics and mechanical transmission path. Therefore, in this invention, the connection area can be increased and the shear and bending resistance of the connection point can be improved through the independent rear support 21 connection.

[0029] In one embodiment: a front support 22 extends forward from the front of the chassis 2, and the bottom of the rear tilt plate 5 is connected to the front support 22.

[0030] In this embodiment, the front support 22, as a structure extending forward from the chassis 2, provides a connection to the bottom of the swashplate 5. When the swashplate 5 bears a load, the force is effectively transferred to the chassis 2 through the front support 22. This design also helps to enhance connection strength and optimize force transmission.

[0031] At the same time, this structure corresponds to the setting of the rear support seat 21, forming a symmetrical or nearly symmetrical support structure, which helps to balance the overall force on the seat.

[0032] In one embodiment: the rear tilt plate 5 is connected as a whole by a crossbeam 51, and the crossbeam 51 and the rear tilt plates 5 on both sides are distributed in an "n" shape.

[0033] In this embodiment, when the two tilting plates 5 are connected as a whole by the crossbeam 51, they are no longer independent entities under stress, but rather bear and distribute the load as a whole. This "n"-shaped structural design increases the overall stiffness of the tilting plate group 5, enabling it to work more evenly and collaboratively under pressure, effectively resisting lateral bending and torsion.

[0034] Therefore, the crossbeam 51 connects the two rearward tilt plates 5, enhancing their overall resistance to deformation and improving the support stability of the rear of the seat. At the same time, it helps to distribute the load from the seat plate 4 more evenly across the two rearward tilt plates 5 and their connection points with the chassis 2.

[0035] In one embodiment: two outwardly extending plates 31 are provided on the top of the forward tilting plate 3, and the outwardly extending plates 31 and the forward tilting plate 3 are distributed in an "L" shape.

[0036] In this embodiment, the outward-tilting plate 31 extends outward from the top of the forward-tilting plate 3 to both sides, forming an "L" shape. This structure increases the width or support area of ​​the connection region between the top of the forward-tilting plate 3 and the seat plate 4. When the seat plate 4 is under stress, the outward-tilting plate 31 can provide wider support, which helps to transfer the force more smoothly to the body of the forward-tilting plate 3. At the same time, the "L" shape design can also increase the bending stiffness of the top of the forward-tilting plate 3 and avoid local stress concentration.

[0037] In one embodiment, the forward tilting plate 3 and the rear tilting plate 5 are bolted to the chassis 2, and the forward tilting plate 3 and the rear tilting plate 5 are bolted to the seat plate 4. The bolting connection technology is mature, the assembly process is simple, and it is easy to standardize production and mass-produce. Furthermore, when components are damaged or require upgrades, they can be easily disassembled and replaced by loosening the bolts, greatly reducing maintenance costs and difficulty.

[0038] In one embodiment, the forward tilting plate 3 and the backward tilting plate 5 are made of elastic steel plate.

[0039] In this embodiment, when the forward tilt plate 3 and the backward tilt plate 5 are made of elastic steel plates, they inherently possess the ability to recover deformation under external forces. When a user sits down, the body weight is transferred to these elastic steel plates through the seat plate 4. The elastic steel plates undergo bending or compressive deformation, absorbing some energy and thus providing cushioning and flexible support. When the load decreases or is removed, the elastic steel plates return to their original shape. Therefore, the deformation of the elastic steel plates effectively absorbs the impact force when sitting, making the riding process smoother and more comfortable, and reducing the rigid pressure on the spine and buttocks. In addition, the elastic steel plates, as a buffer layer, deform themselves under load, rather than directly transferring all the impact force to the connecting bolts or chassis. This significantly reduces stress concentration at the connection points, effectively slows down material fatigue, and thus greatly extends the service life of the seat and its components.

[0040] In summary, the core working principle of this utility model, which provides a seat with elastic support, lies in achieving a comfortable riding experience and excellent durability through an elastic cross-support structure.

[0041] First, the basic structure of the entire seat is supported by the chassis 2 on top of the seat legs 1, which in turn supports the seat plate 4 that the user directly contacts. Between the chassis 2 and the seat plate 4, two sets of plates are cleverly arranged: a forward tilt plate 3 and a backward tilt plate 5.

[0042] The bottom of the two forward-tilting plates 3 are connected to the rear sides of the chassis 2, and then extend forward and upward, with their tops connected to the seat plate 4.

[0043] The bottom of the two rearward tilting plates 5 are connected to the front sides of the chassis 2, and then extend backward and upward, with their tops connected to the seat plate 4.

[0044] The forward tilt plate 3 and the rear tilt plate 5 are arranged in a cross configuration in space, forming a stable geometric structure. When a user sits on the seat plate 4, the vertical load exerted by the user's body weight is first applied to the seat plate 4. The seat plate 4 then transfers these loads to the forward tilt plate 3 and the rear tilt plate 5 connected to it.

[0045] Since the forward tilting plate 3 and the rear tilting plate 5 are elastic steel plates, they will undergo moderate bending deformation when subjected to load. This deformation is the key to providing the elastic support function of this utility model and brings about the following technical effects.

[0046] 1. Enhanced Seating Comfort: The elastic deformation acts like a built-in shock absorber, effectively absorbing the instantaneous impact when sitting down and the minor vibrations during daily use. This makes the seat support more flexible and less rigid. Users will feel more comfortable, with better distribution of body pressure, and less fatigue during long journeys.

[0047] 2. Protects connecting components and extends service life: The buffering effect of the elastic steel plate greatly reduces the peak stress directly transmitted to the connection point by load impact. Bolts, chassis, and seat plate operate under lower stress levels, effectively avoiding problems common in traditional rigid connections such as stress concentration, material fatigue, bolt loosening, and structural cracking. This significantly improves the durability and service life of the seat.

[0048] 3. Structural stability and ease of maintenance: Despite its elasticity, the cross structure formed by the forward tilting plate 3 and the rear tilting plate 5 ensures the overall stability and load-bearing capacity of the seat. Meanwhile, the bolted connection method facilitates seat assembly and greatly enhances convenience for future maintenance and component replacement.

[0049] Therefore, by cleverly utilizing elastic steel plates to form a cross-support structure, this utility model provides the seat with excellent elastic cushioning performance while providing stable load-bearing capacity. This significantly improves riding comfort, effectively protects connecting components, and greatly extends the service life of the seat, thus making it widely applicable.

[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation 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 component 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. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A seat with elastic support function, characterized in that: Includes a chassis (2) installed on top of the chair leg (1), two forward tilting plates (3) extending forward and upward on both sides of the rear of the chassis (2), and the top of the forward tilting plates (3) is connected to the seat plate (4); Two tilting plates (5) are installed on the front two sides of the chassis (2) at an angle to the rear and upward. The top of the tilting plates (5) is connected to the seat plate (4). The forward tilt plate (3) and the rear tilt plate (5) form a cross support structure between the chassis (2) and the seat plate (4).

2. A seat with elastic support function according to claim 1, characterized in that: The chassis (2) extends rearward to a rear support seat (21), and the bottom of the tilting plate (3) is connected to the rear support seat (21).

3. A seat with elastic support function according to claim 1, characterized in that: The chassis (2) has a front support seat (22) extending forward, and the bottom of the rear tilt plate (5) is connected to the front support seat (22).

4. A seat with elastic support function according to claim 1, characterized in that: The rear tilting plate (5) is connected as a whole by a crossbeam (51), and the crossbeam (51) and the rear tilting plates (5) on both sides are distributed in an "n" shape.

5. A seat with elastic support function according to claim 1, characterized in that: The top of the forward tilting plate (3) is provided with two outwardly extending outward tilting plates (31), and the outward tilting plates (31) and the forward tilting plate (3) are distributed in an "L" shape.

6. A seat with elastic support function according to claim 1, characterized in that: The forward tilt plate (3) and the rear tilt plate (5) are connected to the chassis (2) by bolts, and the forward tilt plate (3) and the rear tilt plate (5) are connected to the seat plate (4) by bolts.

7. A seat with elastic support function according to claim 1, characterized in that: The aforementioned forward tilt plate (3) and backward tilt plate (5) are made of elastic steel plate.

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