Comfortable folding chair

Abstract

The utility model relates to the field of chairs, and particularly discloses a comfortable folding chair which comprises a chair surface, a chair back and a foldable supporting structure, the supporting structure is provided with at least three supporting parts which are arranged at intervals, and the chair surface is attached to each supporting part in a supported manner; the three supporting parts comprise a first supporting part located on the front side, and a second supporting part and a third supporting part which are located on the rear side of the first supporting part, and the first supporting part is located on the front side of the chair back; the chair surface is provided with a first edge part extending between the first supporting part and the second supporting part, and a second edge part extending between the first supporting part and the third supporting part; a user seating space is defined among the chair back, the first edge part and the second edge part, and the first edge part and the second edge part are both configured to incline in the front-back direction so as to avoid the legs of a user. When a user sits, the legs of the user can obtain a natural stretching space, the feet of the user can directly make contact with the ground, and more labor is saved and the user feels comfortable in use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of chair, especially a comfortable folding chair. BACKGROUND

[0002] In modern life, folding chairs are widely used in camping, picnic, outdoor leisure, exhibition, temporary office and many other scenes due to their portability, storage and small space occupation. With the continuous improvement of people's living quality, the comfort requirement of folding chairs is increasingly strict. How to further improve the comfort experience of users while ensuring the portability and stability of folding chairs has become an important direction of technical research in this field.

[0003] Most of the existing folding chairs adopt the traditional flat seat design, and the seat is usually rectangular or square in structure. When the user sits down, the legs directly contact the front edge of the seat, or the user stretches the legs directly contacting the front edge of the seat. This results in the user's feet not being able to touch the ground or only the toes being able to touch the ground. Due to the lack of effective support for the feet, long-term use can cause poor blood circulation in the entire foot, leading to discomfort such as soreness and numbness. Especially in outdoor leisure activities, users often sit on folding chairs for a long time, which seriously affects the user's experience.

[0004] To solve the above problems, some existing technologies try to increase a soft cushion on the seat or adjust the inclination angle of the backrest to improve comfort. However, increasing the cushion can alleviate the contact pressure to some extent, but it does not fundamentally change the stress state and spatial layout of the legs. Adjusting the inclination angle of the backrest mainly focuses on improving the support of the back and waist, and has limited effect on improving the comfort of the legs. In addition, these improvement schemes may increase the weight and storage volume of the folding chair, weakening its portability advantage.

[0005] In summary, the existing folding chairs have obvious shortcomings in structural design and cannot meet the high requirements of users for comfort. Therefore, an innovative design is needed to effectively improve the comfort of the legs to fill the market gap and provide users with a better user experience. INVENTION CONTENT

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a comfortable folding chair. Through the unique seat design, the first edge part and the second edge part of the seat are inclined in the front-rear direction to avoid the user's legs, so that the user's feet can effectively touch the ground when sitting, effectively solving the above problems in the prior art and providing users with a more comfortable user experience.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A comfortable folding chair comprises a seat, a backrest and a foldable support structure, the support structure having at least three support parts arranged in intervals, the seat being supportedly attached to each support part;

[0009] The three support parts comprise a first support part at a front side, and a second support part and a third support part at a rear side of the first support part, the backrest being connected to the second support part and the third support part, and the first support part being at a front side of the backrest;

[0010] The seat has a first edge part extending between the first support part and the second support part, and a second edge part extending between the first support part and the third support part; a user seating space is defined between the backrest, the first edge part and the second edge part, and the first edge part and the second edge part are both configured to be inclined in a front-rear direction to avoid the user's legs.

[0011] Further, the support structure comprises:

[0012] a hinge assembly comprising an upper hinge base and a lower hinge base arranged in correspondence in a vertical direction, the upper hinge base being formed as the support part and connected to a bottom surface of the seat, and the lower hinge base being supported on the ground; and

[0013] a link assembly arranged between two adjacent hinge assemblies, comprising a first link and a second link arranged in cross, top ends of the first link and the second link being respectively hinged to two upper hinge bases of the adjacent hinge assemblies, and bottom ends being respectively hinged to two lower hinge bases.

[0014] Further, the support structure comprises a first support rod and a second support rod for connecting the backrest, the first support rod being at the second support part, and the second support rod being at the third support part, the backrest being supported between the two support rods.

[0015] Further, bottom ends of the first support rod and the second support rod are respectively hinged to two links symmetrical to a symmetry line of the first edge part and the second edge part.

[0016] Further, the two symmetrical links are respectively provided with a sliding hinge base, the sliding hinge base being slidably sleeved on the link through a sleeve, and bottom ends of the first support rod and the second support rod are hinged to the sliding hinge base.

[0017] Further, the bottom end of the first support rod is connected to a lower hinge base corresponding to the upper hinge base at the second support part, and the bottom end of the second support rod is connected to a lower hinge base corresponding to the upper hinge base at the third support part.

[0018] Further, the first connecting rod and the second connecting rod are movably connected through a rotating shaft.

[0019] Further, the seat further has a fourth supporting part, which is arranged opposite to the first supporting part and located at the back side of the backrest.

[0020] Further, the seat is square, and the first supporting part, the second supporting part, the third supporting part and the fourth supporting part are respectively located at four corners of the square.

[0021] Further, the material of the seat is oxford cloth or nylon cloth; and the material of the backrest is oxford cloth, nylon cloth or leather.

[0022] Due to the above technical scheme, the utility model has the following beneficial effects:

[0023] 1. The comfortable folding chair of the utility model is inclined in the front-rear direction through the first edge part and the second edge part of the seat, so as to avoid the legs of the user, so that the user's feet can effectively touch the ground when sitting. This design makes the user's legs no longer directly pressed against the front edge of the seat when sitting, but obtains a natural and relaxed space. For users with shorter legs, their feet can directly contact the ground, making it more labor-saving and comfortable to use. For users with longer legs, or relative to small folding chairs, when the user sits down in the leg folding state, the legs do not contact the edge part of the seat, but when the user needs to stretch the legs after a long time of sitting, a natural and relaxed space can also be provided for the mop, rather than being suspended in the front edge of the seat. Compared with the traditional seat design, the seat design of the utility model can effectively reduce the contact area of the legs and the seat, avoid the poor blood circulation of the legs caused by the long suspension of the feet or the landing of only the toes, and significantly reduce the soreness and numbness of the legs. This leg-avoiding design not only improves the user's comfort experience, but is also particularly suitable for scenes where folding chairs are used for a long time, such as outdoor camping, picnics or temporary office work. By improving the stress state and space layout of the legs, a more high-quality and comfortable use experience is provided for the user.

[0024] 2.The folding chair of the present application adopts an optimized support structure design, including a hinge assembly and a connecting rod assembly, the hinge assembly includes an upper hinge seat and a lower hinge seat, and the connecting rod assembly includes a first connecting rod and a second connecting rod arranged in cross. This structure not only provides stable support, but also ensures the balance and stability of the chair during use. Compared with traditional folding chairs, the present application further enhances the stability of the chair back by adding a first support rod and a second support rod in the support structure. The arrangement of the support rod enables the chair back to obtain more reliable support, avoiding user discomfort or safety hazards caused by the inclination or shaking of the chair back. In addition, the bottom end of the support rod is connected to the connecting rod through a sliding hinge, which not only improves the flexibility of the structure, but also maintains stability during folding and unfolding, avoiding jamming or deformation. Through this optimized support structure design, the folding chair of the present application has been significantly improved in stability, and can better adapt to various use scenarios, including uneven outdoor environments, thereby providing users with a safer and more reliable use experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application, but not limit the present application.

[0026] Figure 1 FIG. 1 is a structural schematic diagram of the folding chair in the unfolded state according to the present application;

[0027] Figure 2 FIG. 2 is a structural schematic diagram of the folding chair in another direction of the unfolded state according to the present application;

[0028] Figure 3 FIG. 3 is a structural schematic diagram of the support structure according to the present application;

[0029] Figure 4 FIG. 4 is a structural schematic diagram of the folding chair in the storage state according to the present application;

[0030] Figure 5 FIG. 5 is a structural schematic diagram of the folding chair in the unfolded state according to the present application;

[0031] Figure 6 FIG. 6 is a structural schematic diagram of the support structure according to the present application.

[0032] REFERENCE NUMERALS:

[0033] 100, folding chair;

[0034] 110, seat surface; 111, first edge portion; 112, second edge portion;

[0035] 120, chair back;

[0036] 130, support structure; 1301, first support part; 1302, second support part; 1303, third support part; 1304, fourth support part; 131, upper hinge seat; 132, lower hinge seat; 133, sliding hinge seat; 134, first connecting rod; 135, second connecting rod; 136, rotating shaft; 137, first support rod; 138, second support rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the following will further describe the present application in detail with reference to the drawings. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0039] Unless otherwise defined, the technical terms or scientific terms used in the present patent document should be understood as the common meanings understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present patent specification and claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one", "an" or "the" and similar words do not represent a quantity limitation, but represent the existence of at least one. "Including" or "containing" and similar words mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. "Center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute position of the described object changes, and they are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In the description of the utility model, it is explained that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, can also be detachable connection, or integrally connected; it can be mechanical connection, can also be electrical connection; it can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0041] Some embodiments of the utility model will be described in detail below with reference to the drawings. In the case of no conflict, the features in the following examples can be combined with each other.

[0042] Example 1:

[0043] Please refer to Figures 1 to 4 The comfortable folding chair 100 provided by the utility model, the overall structure includes chair surface 110, chair back 120 and foldable support structure 130. The chair surface 110 provides a basic support surface for the user to sit on, the chair back 120 provides back support for the user, and the support structure 130 is the core component of the folding chair 100, which provides two states of unfolding and storage for the folding chair 100.

[0044] In this embodiment, the support structure 130 has at least three support parts arranged at intervals, which are respectively a first support part 1301, a second support part 1302 and a third support part 1303. The chair surface 110 is supported and attached to each support part. The first support part 1301 is located at the front side, and the second support part 1302 and the third support part 1303 are located at the rear side of the first support part 1301. The chair back 120 is connected to the second support part 1301 and the third support part 1303, and the first support part 1301 is located at the front side of the chair back 120.

[0045] In this embodiment, the unique feature of the seat surface 110 is the design of its edge parts. Specifically, the seat surface 110 has a first edge part 111 extending between the first support part 1301 and the second support part 1302, and a second edge part 112 extending between the first support part 1301 and the third support part 1303. Both edge parts are configured to be inclined in the front-back direction to avoid the user's legs. In a conventional folding chair, the user's legs are in direct contact with the front edge of the seat surface after sitting down, and the feet cannot effectively touch the ground, which can easily cause poor blood circulation in the legs, resulting in pain and numbness. The inclined edge part design of the present application provides a natural stretching space for the user's legs. For users with shorter legs, the feet can directly contact the ground, making it more labor-saving and comfortable to use; for users with longer legs, even in the folded state, the legs do not contact the edge part of the seat surface, and when the legs need to be stretched, a natural stretching space can also be obtained, rather than being suspended in the front edge of the seat surface. This design effectively reduces the contact area between the legs and the seat surface, avoids the problem of poor blood circulation in the legs caused by long-term suspension of the feet or only the toes touching the ground, and significantly improves the user's comfort experience.

[0046] In some embodiments, the support structure 130 also has a fourth support part 1304, which is arranged opposite to the first support part 1301 111 and located on the back side of the backrest 120. This design makes the structure of the chair more stable, and the user is less likely to fall backward when using it.

[0047] In some embodiments, the seat surface 110 is square-shaped, and four corners of the seat surface 110 correspond to the first support portion 1302, the second support portion 1302, the third support portion 1303 and the fourth support portion 1304, respectively. Such a shape design makes the folding chair 100 more regular in appearance, and facilitates storage and carrying. It can be understood that the seat surface 110 can also be polygonal. In some embodiments, the base support assembly of the support structure 130 includes a hinge assembly and a linkage assembly. The hinge assembly includes upper hinge seats 131 and lower hinge seats 132, wherein the upper hinge seats 131 are formed as support portions. For example, with a square seat surface or a polygonal seat surface, four upper hinge seats 131 are formed as four support portions of the support structure 130, and the four support portions are stably supported at the four corners of the seat surface 110, respectively. The lower hinge seats 132 are also four in number, corresponding to the upper hinge seats 131 one by one, and the lower hinge seats 132 are in direct contact with the ground, providing a stable support base for the entire folding chair. The linkage assembly is arranged between two adjacent hinge assemblies, and includes first linkages 134 and second linkages 135 arranged in a cross shape. Such a cross structure can effectively disperse stress and enhance stability. For example, with the linkages under the first edge portion 111, the top end of the first linkage 134 is hingedly connected to the upper hinge seat 131 at the first support portion 1301, and the other end is hingedly connected to the corresponding lower hinge seat 132 at the second support portion 1302. The top end of the second linkage 135 is hingedly connected to the upper hinge seat 131 at the second support portion 1302, and the other end is hingedly connected to the corresponding lower hinge seat 132 at the first support portion 1301. The first linkage 134 and the second linkage 135 are movably connected by a pivot 136. The design of the pivot 136 enables the linkages to rotate flexibly during folding and unfolding, ensuring that the folding chair is easy to operate during use and storage.

[0048] It can be understood that, in the present embodiment, the linkage assembly is arranged between two adjacent hinge assemblies, wherein the two adjacent hinge assemblies refer to two hinge assemblies that are close to each other in space. For example, the two hinge assemblies under the first edge portion 111 of the seat surface 110 in the present embodiment are adjacent to each other, and the two hinge assemblies under the second edge portion 112 are also adjacent to each other. If the seat surface of the present embodiment has only three support points, the two hinge assemblies corresponding to the second support portion 1302 and the third support portion 1303 are also adjacent to each other. If the seat surface of the present embodiment has four support points, the two hinge assemblies between the second support portion 1302 and the fourth support portion 1304 are adjacent to each other, and the two hinge assemblies between the fourth support portion 1304 and the third support portion 1303 are also adjacent to each other.

[0049] In some embodiments, the support structure 130 is further provided with a first support rod 137 and a second support rod 138 for supporting the chair back 120. The first support rod 137 passes through the upper hinge seat 131 at the second support part 1302, and the second support rod 138 passes through the upper hinge seat 131 at the third support part 1303, and the chair back 120 is stably erected between the two support rods.

[0050] In the present embodiment, the bottom ends of the first support rod 137 and the second support rod 138 are respectively hinged to two symmetrical connecting rods, and a sliding hinge seat 133 is respectively installed on the two symmetrical connecting rods. The sliding hinge seat 133 is slidably sleeved on the connecting rod through a sleeve, and the bottom ends of the first support rod 137 and the second support rod 138 are hinged to the sliding hinge seat 133. This design gives flexibility to the height of the chair back 120, and during use, the user can freely adjust the inclination angle of the chair back 120 according to their own sitting posture and needs by sliding the sliding hinge seat 133 on the connecting rod, to obtain the most comfortable back support experience.

[0051] In some embodiments, the chair surface 110 is made of oxford cloth material. Oxford cloth has a light and thin texture, which allows the overall weight of the folding chair to be reduced, making it easier for users to carry. At the same time, its excellent wear resistance and tear resistance ensure that the chair surface is not easily damaged during long-term use, prolonging the service life of the folding chair. In addition, oxford cloth also has certain waterproof performance, so that the folding chair 100 can resist a certain degree of rain erosion when used outdoors, prolonging the service life.

[0052] In some embodiments, the chair surface 110 is made of nylon cloth material, which has elastic properties that can better adapt to the body contours of users of different body types, evenly distribute body pressure, and effectively relieve fatigue caused by prolonged sitting. For scenarios where the folding chair is used for a long time, such as outdoor music festivals, large-scale exhibitions, and other places where people are densely packed and frequently used, this improved folding chair can provide more comfortable support for users and meet their needs for long-term use.

[0053] In some embodiments, the material of the chair back 120 can be oxford cloth, nylon cloth, or leather, and users can choose according to their own preferences and use needs. The leather material chair back 120 gives a sense of high-end and comfort, and is suitable for use indoors or in some more formal occasions; while the oxford cloth or nylon cloth material chair back 120 is more suitable for outdoor use, with good air permeability and durability.

[0054] When the user is ready to use the folding chair of the present embodiment, first, the unfolding operation is performed. Due to the articulated connection of the first connecting rod 134 and the second connecting rod 135 through the rotating shaft 136, and the articulated design of the upper hinge seat 131 and the lower hinge seat 132, the user only needs to apply a slight force to easily unfold the folding chair from the storage state to the use state. After unfolding, the first edge part 111 and the second edge part 112 of the seat surface 110 provide a certain avoidance space for the user's legs. The user's feet can directly contact the bottom surface, so that the leg muscles are in a relaxed state, effectively avoiding poor blood circulation caused by long-term use, and significantly reducing leg pain and numbness.

[0055] During use, the user can adjust the angle of the backrest 120 according to their own needs by sliding the hinge seat 133. For example, when the user wants to rest, the backrest 120 can be inclined backward to better fit the back curve and provide comfortable support. The entire support structure 130 is ensured to be balanced and firm during use through the cooperation of the upper hinge seat 131, the lower hinge seat 132, and the connecting rod, as well as the stable support of the first support rod 137 and the second support rod 138 to the backrest 120. Even in outdoor environments with uneven ground, it can still provide safe and reliable use protection for the user.

[0056] After use, the user performs the folding and storage operation. Similarly, by using the articulated structure of the first connecting rod 134 and the second connecting rod 135 and the rotating function of the rotating shaft 136, the folding chair can be quickly folded into a compact shape, greatly reducing the occupied space and facilitating storage and carrying.

[0057] Embodiment 2:

[0058] The overall architecture of the folding chair of the present embodiment is similar to that of Embodiment 1, and is also composed of a seat surface 110, a backrest 120, and a foldable support structure 130. The support point layout of the seat surface 110 and the structure of the first edge part 111 and the second edge part 112 are also consistent with those of Embodiment 1. The main difference lies in the connection method of the bottom ends of the first support rod 137 and the second support rod 138.

[0059] Referring to Figure 5 and Figure 6 In the present embodiment, the bottom end of the first support rod 137 is directly connected to the corresponding lower hinge seat 132 of the upper hinge seat 131 at the second support part 1302, and the bottom end of the second support rod 138 is connected to the corresponding lower hinge seat 132 of the upper hinge seat 131 at the third support part 1303. This connection method simplifies the support structure of the backrest 120 and reduces components such as the sliding hinge seat 133, thereby reducing production costs and further enhancing the stability of the support structure of the backrest 120.

[0060] In actual use, the angle of the chair back 120 is relatively fixed because the first support rod 137 and the second support rod 138 are directly connected to the lower hinge base 132. However, it can still provide reliable and stable back support for the user. For those users who do not need to frequently adjust the angle of the chair back, this design is more simple and practical. On the one hand, the number of components is reduced, the probability of component wear is reduced, and the possibility of failure is reduced; on the other hand, because the number of movable components is reduced, the operation becomes more convenient and fast during folding and unfolding, and the user can quickly complete the unfolding and storage operation of the folding chair.

[0061] The same as the first embodiment, the seat 110 is made of oxford cloth material or nylon material, and the chair back 120 is made of oxford cloth material, nylon material or leather material, which makes the folding chair of the present embodiment also have the advantages of lightness, wear resistance, comfort and easy cleaning. Whether in outdoor activities such as camping and picnic or in indoor temporary use scenarios, it can provide comfortable sitting experience for the user. With its stable structure and convenient folding function, it meets the diversified use needs of the user in different environments.

[0062] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A comfortable folding chair, comprising a seat, a backrest, and a foldable support structure, said support structure having at least three spaced-apart support portions, the seat being supportedly attached to each support portion; characterized in that: The three support parts include a first support part located on the front side, and a second support part and a third support part located on the rear side of the first support part. The chair back is connected to the second support part and the third support part, and the first support part is located on the front side of the chair back. The seat has a first edge extending between the first support and the second support, and a second edge extending between the first support and the third support; the backrest, the first edge, and the second edge define a user seating space, and both the first edge and the second edge are configured to tilt in the fore-aft direction to avoid the user's legs.

2. The comfortable folding chair according to claim 1, characterized in that, The support structure includes: A hinge assembly includes an upper hinge seat and a lower hinge seat disposed vertically opposite each other, the upper hinge seat forming the support portion and connected to the bottom surface of the chair seat, and the lower hinge seat supporting the ground; and, A linkage assembly is disposed between two adjacent sets of hinge assemblies, including a first link and a second link arranged in a cross configuration. The top ends of the first link and the second link are respectively hinged to two upper hinge seats corresponding to the adjacent hinge assemblies, and the bottom ends are respectively hinged to two lower hinge seats.

3. The comfortable folding chair according to claim 2, characterized in that, The support structure includes a first support rod and a second support rod for connecting the chair back, the first support rod being located at the second support portion, the second support rod being located at the third support portion, and the chair back being supported between the two support rods.

4. The comfortable folding chair according to claim 3, characterized in that, The bottom ends of the first support rod and the second support rod are respectively hinged to two connecting rods that are symmetrical to the lines of symmetry of the first edge and the second edge.

5. The comfortable folding chair according to claim 4, characterized in that, The two symmetrical connecting rods are respectively provided with sliding hinge seats. The sliding hinge seats are slidably sleeved on the connecting rods through a sleeve. The bottom ends of the first support rod and the second support rod are hinged to the sliding hinge seats.

6. The comfortable folding chair according to claim 3, characterized in that, The bottom end of the first support rod is connected to the lower hinge seat corresponding to the upper hinge seat at the second support part, and the bottom end of the second support rod is connected to the lower hinge seat corresponding to the upper hinge seat at the third support part.

7. The comfortable folding chair according to claim 2, characterized in that, The first link and the second link are movably connected by a pivot.

8. The comfortable folding chair according to claim 1, characterized in that, The seat also has a fourth support portion, which is disposed opposite to the first support portion and located on the rear side of the backrest.

9. The comfortable folding chair according to claim 7, characterized in that, The chair surface is square, and the first support part, the second support part, the third support part and the fourth support part are located at the four corners of the square.

10. The comfortable folding chair according to claim 1, characterized in that, The seat material is Oxford cloth or nylon cloth; the backrest material is Oxford cloth, nylon cloth or leather.

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