Seating furniture

Abstract

The application provides a seat. The seat comprises a small footrest assembly, a large footrest assembly, a small footrest pad and a large footrest pad. The small footrest pad is installed on the top of the small footrest assembly, and the large footrest pad is installed on the top of the large footrest assembly. The highest point of the small footrest assembly is located on a first plane, the highest point of the large footrest assembly is located on a second plane, the highest point of the small footrest pad is located on a third plane, and the highest point of the large footrest pad is located on a fourth plane. When the seat is in a lying state, the first plane is located above the second plane, and the third plane is located above the fourth plane. When the seat is in a TV state, the third plane is located above the fourth plane, so that the small footrest pad supporting the heel of the user can lift the heel, straighten the heel and the calf, and improve the comfort of the user.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and more particularly to a seating furniture. Background Technology

[0002] In sofa furniture design, iron frame support structures are widely used as the load-bearing foundation for leg components. In practical applications, to improve user comfort, the surface of the iron frame structure is usually covered with soft materials such as sponge or fabric to form a soft upholstery. The introduction of this upholstery structure results in a significant increase in the height of the leg components, especially when using combinations of legs of different sizes, such as the matching use of main and auxiliary legs.

[0003] However, in practical applications, the ergonomic needs under actual usage conditions have not been fully considered. For example, for users who are over 180cm tall, there will be a height difference between their calves and heels. This height difference forces users to adopt an unnatural knee-bending posture, which leads to obstructed blood circulation and increased fatigue from sitting. This has become a key bottleneck restricting the improvement of the ergonomic design level of sofa furniture.

[0004] Therefore, it is necessary to design a seating system that solves the aforementioned technical problems. Utility Model Content

[0005] This application provides a seating device that allows tall users to straighten their legs while lying down.

[0006] According to an embodiment of this specification, a seat is provided, comprising a small footrest assembly, a large footrest assembly, a small footrest pad, and a large footrest pad; the small footrest pad is installed on top of the small footrest assembly, and the large footrest pad is installed on top of the large footrest assembly; the horizontal plane at the highest point of the small footrest assembly is a first plane, the horizontal plane at the highest point of the large footrest assembly is a second plane, the horizontal plane at the highest point of the small footrest pad is a third plane, and the horizontal plane at the highest point of the large footrest pad is a fourth plane; when the seat is in a reclining position, the first plane is located above the second plane, and the third plane is located above the fourth plane.

[0007] Furthermore, it also includes a footrest extension assembly; the small footrest assembly includes a small footrest plate, a small footrest connecting rod, and a small footrest extension connecting rod; the two ends of the small footrest connecting rod are respectively connected to the middle of the small footrest plate and the large footrest assembly, and the two ends of the small footrest extension connecting rod are respectively connected to the small footrest plate and the footrest extension assembly.

[0008] Furthermore, the small footrest link includes a first connecting part connected to the small footrest plate and a second connecting part connected to the large footrest assembly, wherein the first connecting part and the second connecting part form an obtuse angle.

[0009] Furthermore, when the seat is in the TV posture state, along the first direction, the first connecting part extends away from the small footrest, and the angle between the first connecting part and the horizontal plane is α, where α ranges from 25° to 35°.

[0010] Furthermore, the included angle between the first connecting part and the second connecting part is b, and the range of b is 100°-110°;

[0011] The length of the first connecting part is greater than the length of the second connecting part.

[0012] Furthermore, the small footrest includes a first support portion and a second support portion, and the connection point between the first support portion and the second support portion is connected to the small footrest connecting rod; the first support portion and the second support portion form an obtuse angle.

[0013] Furthermore, the large footrest assembly includes a large footrest plate and a large footrest connecting rod; the two ends of the large footrest connecting rod are respectively connected to the large footrest plate and the small footrest extension connecting rod and are placed between the two.

[0014] Furthermore, the footrest extension assembly includes a first link, a second link, a third link, and a fourth link. The two ends of the first link are respectively connected to the large footrest and the second link; one end of the third link is connected to the small footrest extension link and the large footrest, and the other end of the third link is connected to the fourth link; the middle part of the first link is connected to the fourth link.

[0015] Furthermore, the third link bends toward one side of the first link; the third link and the first link partially overlap.

[0016] Furthermore, it also includes a drive assembly; the drive assembly includes a drive member, a first extension link and a second extension link; the two ends of the first extension link are respectively connected to the drive member and the second extension link, and the second extension link is connected to the middle part of the fourth link.

[0017] Furthermore, it also includes a base, a suspension assembly, a seat frame assembly, and a backrest assembly; the suspension assembly is respectively connected to the base and the seat frame assembly, and the backrest assembly and the footrest extension assembly are respectively connected to the front and rear ends of the seat frame assembly.

[0018] Furthermore, when the seat is in a reclining position, the small footrest forms an angle α with the horizontal plane, the angle α ranging from 5° to 20°, and the large footrest forms an angle b with the horizontal plane, the angle b ranging from 7° to 23°; the angle α is smaller than the angle b.

[0019] The present application has the following beneficial effects: When the seat is in the TV posture, the third plane is located above the fourth plane, so the small footrest that supports the user's heel can raise the heel, straighten the leg and improve the user's sitting comfort.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0022] Figure 1 This is a structural schematic diagram of the seat in the present application in a seated position;

[0023] Figure 2 This is a structural schematic diagram of the seat in the TV posture state of this application;

[0024] Figure 3 This is a structural schematic diagram of the seat in this application in a reclining position;

[0025] Figure 4 This is a structural schematic diagram of the small foot support linkage of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10-Small footrest assembly; 11-Small footrest plate; 111-First support part; 112-Second support part; 12-Small footrest connecting rod; 121-First connecting part; 122-Second connecting part; 13-Small footrest extension connecting rod; 131-Support block;

[0028] 20 - Large footrest assembly; 21 - Large footrest plate; 22 - Large footrest connecting rod;

[0029] 30 - Small footrest;

[0030] 40-Large footrest;

[0031] 50 - Footrest extension assembly; 51 - First link; 52 - Second link; 53 - Third link; 54 - Fourth link;

[0032] 60 - Drive assembly; 61 - Drive element; 62 - First extension link; 63 - Second extension link;

[0033] 71-Base; 72-Suspension assembly; 73-Seat frame assembly; 74-Backrest assembly. Detailed Implementation

[0034] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0035] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0036] The embodiments described in this specification will now be described in detail.

[0037] Reference Figure 1-4 As shown in the figure, this application discloses a seat, which includes a small footrest assembly 10, a large footrest assembly 20, a small footrest pad 30, a large footrest pad 40, a footrest extension assembly 50, and a drive assembly 60. The small footrest pad 30 is installed on the top of the small footrest assembly 10, and the large footrest pad 40 is installed on the top of the large footrest assembly 20.

[0038] The small footrest assembly 10 is rotatably connected to the large footrest assembly 20, the large footrest assembly 20 is rotatably connected to the footrest extension assembly 50, and the footrest extension assembly 50 is rotatably connected to the drive assembly 60. Therefore, when the drive assembly 60 drives the footrest extension assembly 50 to unfold, the large footrest assembly 20 unfolds simultaneously, and the small footrest assembly 10 also unfolds synchronously, realizing the switching of the seating posture. In this embodiment, the seating refers to a sofa. In some cases, seating can also refer to a chair, stool, etc.

[0039] The small footrest assembly 10 includes a small footrest plate 11, a small footrest connecting rod 12, and a small footrest extension connecting rod 13. The horizontal plane at the highest point of the small footrest assembly 10 is the first plane, and when the seat is placed on the ground, the aforementioned reference horizontal plane is the ground.

[0040] The small footrest 11 includes a first support portion 111 and a second support portion 112. The first support portion 111 extends away from the large footrest assembly 20, and the small footrest pad 30 is mounted on the first support portion 111. In this way, interference between the small footrest pad 30 and the large footrest assembly 20 and the large footrest pad 40 can be avoided during the switching of the seating posture.

[0041] The first support 111 and the second support 112 form an obtuse angle, thereby raising the first support 111 away from the ground so that the small footrest 11 can be located above the large footrest assembly 20, making it easier to raise the user's heel placed on the small footrest 11.

[0042] The small footrest link 12 includes a first connecting part 121 and a second connecting part 122. The connection point between the first support part 111 and the second support part 112 is connected to the first connecting part 121. The second connecting part 122 is connected to the large footrest assembly 20.

[0043] When the seat is in the TV position, along the first direction, the first connecting portion 121 extends away from the small footrest 30, and the angle between the first connecting portion 121 and the horizontal plane is α, where α ranges from 25° to 35°. Thus, the extension of the first connecting portion 121 away from the horizontal plane raises the height of the connection point between the first connecting portion 121 and the second connecting portion 122, thereby increasing the height of the small footrest 30 and ensuring that when the seat is in the TV position, the third plane is above the fourth plane.

[0044] The included angle between the first connecting part 121 and the second connecting part 122 is b, and b ranges from 100° to 110°. Furthermore, the length of the first connecting part 121 is greater than the length of the second connecting part 122. Thus, the small footrest 11 fixed to the first connecting part 121 can be positioned away from the small footrest link 12, avoiding interference between their movements while ensuring sufficient distance between the heel and calf, allowing the user to better support themselves on the small footrest 30 and the large footrest 40.

[0045] The two ends of the small footrest extension link 13 are connected to the small footrest plate 11 and the footrest extension assembly 50, respectively. The small footrest extension link 13 is provided with a support block 131. The first connecting part 121 abuts against the support block 131, thereby helping to distribute the pressure borne by the small footrest link 12 and improve the load-bearing capacity of the small footrest assembly 10.

[0046] The large footrest assembly 20 includes a large footrest plate 21 and a large footrest connecting rod 22. The horizontal plane at the highest point of the large footrest assembly 20 is the second plane. When the seat is placed on the ground, the aforementioned reference horizontal plane is the ground.

[0047] The two ends of the large footrest link 22 are connected to the large footrest plate 21 and the small footrest link 12, respectively. The middle part of the small footrest extension link 13 is bent inwards towards the seat, and the space formed by the bend is used to accommodate the large footrest link 22, so that the large footrest link 22 is placed between the large footrest plate 21 and the small footrest extension link 13. The aforementioned "inner side" refers to the inner side of the seat.

[0048] The small footrest 30 is a soft-padded structure wrapped around the small footrest 11, and the large footrest 40 is a soft-padded structure wrapped around the large footrest 21. The horizontal plane at the highest point of the small footrest 30 is the third plane, and the horizontal plane at the highest point of the large footrest 40 is the fourth plane. When the seat is placed on the ground, the above-mentioned reference horizontal plane is the ground.

[0049] Both of the aforementioned soft padding components are filled with at least one of high-density polyurethane foam, memory foam composite layer, or sponge, providing comfort while dynamically allowing the small footrest 30 and large footrest 40 to deform. The surface of the soft padding is covered with breathable or scratch-resistant leather, consistent with the seating material.

[0050] In a lying position, the small footrest 30 forms an angle c with the horizontal plane, ranging from 5° to 20°, while the large footrest 40 forms an angle d with the horizontal plane, ranging from 7° to 23°. Angle c is smaller than angle d. The advantage of this design is that, in a lying position, the pressure of the calves on the large footrest 40 is greater than the pressure of the heels on the small footrest 30. This results in a larger deformation of the large footrest 40. Therefore, to ensure that the user's legs and heels are straight in a lying position, the height of the large footrest 40 needs to be increased, thus increasing the angle d and improving user comfort.

[0051] Specifically, when the seat is in a reclining position, the pressure exerted by the user's heels on the small footrest 30 ranges from 5 kPa to 18 kPa, and the pressure exerted by the calves on the large footrest 40 ranges from 12 kPa to 35 kPa.

[0052] In addition, when the seat is in a reclining position, the height difference between the horizontal plane where the highest point of the user's heel is located and the horizontal plane where the highest point of the lower leg is located ranges from 2.5cm to 3.1cm, and the height difference between the third and fourth planes ranges from 3cm to 4.5cm. The higher height difference between the third and fourth planes can withstand the deformation caused by the pressure of the user's legs and heels, so as to meet the height difference range between the horizontal plane where the highest point of the user's heel is located and the horizontal plane where the highest point of the lower leg is located.

[0053] In this embodiment, both the small footrest 30 and the large footrest 40 are filled with the same soft material. By increasing the filling thickness of the large footrest 40, the height difference between the third and fourth planes is made to be 3cm-4.5cm, thus meeting the deformation requirements. In some cases, the density of the filling in the large footrest 40 or the hardness of the filling material can be increased to reduce the deformation of the large footrest 40. This reduces the filling thickness of the large footrest 40, i.e., reduces the height difference between the third and fourth planes, making the height difference closer to the height difference between the horizontal plane where the highest point of the user's heel is located and the horizontal plane where the highest point of the calf is located.

[0054] When the seat is in the TV position, the pressure exerted by the user's heels on the small footrest 30 ranges from 8 kPa to 25 kPa, while the pressure exerted by the calves on the large footrest 40 ranges from 15 kPa to 30 kPa. At this time, the height difference between the horizontal plane where the highest point of the user's heels is located and the horizontal plane where the highest point of the calves is located ranges from 1.5 cm to 2.5 cm, as does the height difference between the third and fourth planes. The advantage of this design is that the pressure exerted by the user on the small footrest 30 and the large footrest 40 is relatively small in the TV position, resulting in similar deformation between the two.

[0055] The footrest extension assembly 50 includes a first link 51, a second link 52, a third link 53, and a fourth link 54. The two ends of the first link 51 are connected to the large footrest 21 and the second link 52, respectively. One end of the third link 53 is connected to the small footrest extension link 13 and the large footrest 21, and the other end of the third link 53 is connected to the fourth link 54. The middle part of the first link 51 is connected to the fourth link 54, forming a structurally stable four-bar structure.

[0056] The third link 53 bends towards the side closer to the first link 51. The third link 53 and the first link 51 partially overlap, making the overall structure of the footrest extension assembly 50 more compact. In addition, when viewed from the outside of the seat, the first link 51 can conceal the third link 53, improving the appearance design of the footrest extension assembly 50 and enhancing the overall aesthetics and neatness of the product.

[0057] The drive assembly 60 includes a drive member 61, a first extension link 62, and a second extension link 63. The two ends of the first extension link 62 are connected to the drive member 61 and the second extension link 63, respectively, and the second extension link 63 is connected to the middle of the fourth link 54. The drive member 61 transmits force to the footrest extension assembly 50 through the first extension link 62 and the second extension link 63.

[0058] The seating also includes a base 71, a suspension assembly 72, a seat frame assembly 73, and a backrest assembly 74. The suspension assembly 72 is connected to both the base 71 and the seat frame assembly 73. The backrest assembly 74 and the footrest extension assembly 50 are connected to the front and rear ends of the seat frame assembly 73, respectively. The second link 52 and the fourth link 54 are connected to the seat frame assembly 73, thereby causing the seat frame assembly 73 to move synchronously when the footrest extension assembly 50 unfolds.

[0059] When the seat is in a sitting, TV-like, or reclining position, the included angles formed by the mounting surface of the seat frame assembly 73 and the horizontal plane range from 7° to 11°, 10° to 14°, and 26° to 28°, respectively.

[0060] In this embodiment, the highest point of the backrest assembly 74 is located on the fifth plane. When the seat is in a reclining position, the first plane is located above the fifth plane. The shortest distance between the first plane and the second plane is 122.1 cm. At this time, the seat is in a zero-gravity state and is in the most comfortable posture.

[0061] The footrest assembly 10 and footrest pad 30 of this application have a simple structure, few parts, and low production and processing costs, and can provide support for the user's heels. When the seat is in a reclining position, the third plane is above the fourth plane, and the footrest pad 30 can raise the heels, straightening the gap between the heels and calves, thus improving the user's sitting comfort.

[0062] The connecting rods comprising the small footrest assembly 10, the large footrest assembly 20, the footrest extension assembly 50, and the drive assembly 60 of this application are provided with bent portions. These bent portions not only make the structure more compact but also help distribute stress, preventing localized stress concentration and improving the stability and strength of the seating. Furthermore, the connecting rods constituting the above components also have multiple arc-shaped clearance grooves to prevent mistake-proofing.

[0063] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A seating arrangement, characterized in that, It includes a small footrest assembly, a large footrest assembly, a small footrest pad, and a large footrest pad; the small footrest pad is installed on top of the small footrest assembly, and the large footrest pad is installed on top of the large footrest assembly; the horizontal plane where the highest point of the small footrest assembly is located is a first plane, the horizontal plane where the highest point of the large footrest assembly is located is a second plane, the horizontal plane where the highest point of the small footrest pad is located is a third plane, and the horizontal plane where the highest point of the large footrest pad is located is a fourth plane; when the seat is in a reclining position, the first plane is located above the second plane, and the third plane is located above the fourth plane.

2. The seating according to claim 1, characterized in that, It also includes a footrest extension assembly; the small footrest assembly includes a small footrest plate, a small footrest connecting rod, and a small footrest extension connecting rod; the two ends of the small footrest connecting rod are respectively connected to the middle of the small footrest plate and the large footrest assembly, and the two ends of the small footrest extension connecting rod are respectively connected to the small footrest plate and the footrest extension assembly.

3. The seating according to claim 2, characterized in that, The small footrest link includes a first connecting part connected to the small footrest plate and a second connecting part connected to the large footrest assembly, with the first connecting part and the second connecting part forming an obtuse angle.

4. The seating according to claim 3, characterized in that, When the seat is in the TV position, along the first direction, the first connecting part extends away from the small footrest, and the angle between the first connecting part and the horizontal plane is α, where α ranges from 25° to 35°.

5. The seating according to claim 3, characterized in that, The included angle between the first connecting part and the second connecting part is b, and the range of b is 100°-110°. The length of the first connecting part is greater than the length of the second connecting part.

6. The seating according to claim 2, characterized in that, The small footrest includes a first support part and a second support part, and the connection point between the first support part and the second support part is connected to the small footrest connecting rod; the first support part and the second support part form an obtuse angle.

7. The seating according to claim 2, characterized in that, The large footrest assembly includes a large footrest plate and a large footrest connecting rod; the two ends of the large footrest connecting rod are respectively connected to the large footrest plate and the small footrest extension connecting rod and are placed between the two.

8. The seating according to claim 7, characterized in that, The footrest extension assembly includes a first link, a second link, a third link, and a fourth link. The two ends of the first link are respectively connected to the large footrest and the second link. One end of the third link is connected to the small footrest extension link and the large footrest, and the other end of the third link is connected to the fourth link. The middle part of the first link is connected to the fourth link.

9. The seating according to claim 8, characterized in that, The third link bends toward one side of the first link; the third link and the first link partially overlap.

10. The seating according to claim 8, characterized in that, It also includes a drive assembly; the drive assembly includes a drive member, a first extension link and a second extension link; the two ends of the first extension link are respectively connected to the drive member and the second extension link, and the second extension link is connected to the middle of the fourth link.

11. The seating according to claim 8, characterized in that, It also includes a base, a suspension assembly, a seat frame assembly, and a backrest assembly; the suspension assembly is connected to the base and the seat frame assembly respectively, and the backrest assembly and the footrest extension assembly are connected to the front and rear ends of the seat frame assembly respectively.

12. The seating according to claim 1, characterized in that, When the seat is in a reclining position, the small footrest forms an angle c with the horizontal plane, the angle c ranging from 5° to 20°, and the large footrest forms an angle d with the horizontal plane, the angle d ranging from 7° to 23°; the angle c is smaller than the angle d.

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