Support cushions and sofa beds

Abstract

This application provides a support cushion and a sofa bed. The support cushion includes at least two support units. When the support cushion is in an unfolded state, the at least two support units are close together along a first direction. When the support cushion is in a folded state, the at least two support units are stacked along a second direction. The second direction is perpendicular to the first direction and parallel to the thickness direction of the support unit. Each support unit includes a pressure-relieving area and a pressure-bearing area, and the number of pressure-relieving and pressure-bearing areas is multiple, and the pressure-relieving and pressure-bearing areas are arranged alternately along the first direction. The pressure-relieving area has a lower hardness than the pressure-bearing area. This application disassembles the support cushion into at least two support units, thereby making the sofa bed more convenient to transform and improving space utilization in the folded state. Furthermore, by setting support areas of different hardness on each support unit, it can better conform to the human body curve, improving the user's sleeping comfort.

Description

Technical Field

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

[0002] With the fast pace of modern life and increasingly compact living spaces, consumers have significantly increased their demands for the portability, space utilization, and multifunctionality of furniture products. Especially in the field of sleep health, people's requirements for sleep quality are becoming more refined, making partitioned and space-efficient sofas and mattresses a market hotspot.

[0003] Traditional zoned mattresses are often one-piece, fixed structures that take up a lot of space. Furthermore, foldable mattresses often cannot provide detailed support zones, resulting in poor ergonomics and difficulty in meeting diverse needs.

[0004] Therefore, it is necessary to design a support cushion and sofa bed that can solve the above-mentioned technical problems. Utility Model Content

[0005] This application provides a support cushion and sofa bed that can improve user sleep comfort while increasing space utilization.

[0006] According to a first aspect of the embodiments of this specification, a support pad is provided, comprising at least two support units;

[0007] The support pad is used to switch between a folded state and an unfolded state;

[0008] When the support pad is in the unfolded state, at least two support units are brought together along a first direction; when the support pad is in the folded state, at least two support units are stacked along a second direction; the second direction is perpendicular to the first direction and parallel to the thickness direction of the support unit.

[0009] The support unit includes a pressure relief area and a pressure bearing area, and there are multiple pressure relief areas and pressure bearing areas, which are arranged alternately at intervals along a first direction;

[0010] The hardness of the pressure relief zone is less than that of the pressure bearing zone.

[0011] Furthermore, each of the support units includes at least two pressure relief zones, one of which is a first pressure relief zone and the other is a second pressure relief zone; at least one pressure-bearing zone is provided between the first pressure relief zone and the second pressure relief zone;

[0012] When the support pad is in the unfolded state, the two first pressure relief zones come together.

[0013] Furthermore, each of the pressure relief zones is provided with multiple sets of first spring packs, which are arranged along a third direction; the third direction is perpendicular to the first direction and the second direction.

[0014] Furthermore, the support unit also includes a retaining edge, which is fixed to the outer periphery of the support unit along a first direction and / or a third direction; the height of the retaining edge is the same as the height of the pressure relief area and the pressure bearing area;

[0015] The first direction is perpendicular to the third direction.

[0016] Furthermore, along the first direction, the retaining edge and the pressure relief area are adjacent; the hardness of the retaining edge and the hardness of the pressure relief area are the same; or, the absolute value of the difference between the hardness of the retaining edge and the hardness of the pressure relief area is less than 10N.

[0017] Furthermore, each of the pressure-bearing zones is provided with at least one set of second spring packs, which are arranged along a third direction; the third direction is perpendicular to the first direction and the second direction.

[0018] Furthermore, the support pad also includes a top plate and a bottom plate;

[0019] The support unit includes a first surface and a second surface disposed opposite to each other along the second direction; the top plate is disposed on the upper surface of the support unit; and the bottom plate is disposed on the lower surface of the support unit.

[0020] The top plate and the bottom plate have the same hardness; and / or

[0021] The hardness of the top plate is less than that of the pressure relief zone and the pressure bearing zone.

[0022] Furthermore, the support pad also includes a connector;

[0023] The connector is a Velcro fastener; one of the support units has a hook side, and the other support unit has a rough side that matches the hook side; and / or

[0024] The connector is a webbing, and the two ends of the webbing are respectively fixed to the surfaces of two adjacent support units.

[0025] Furthermore, the number of pressure relief zones is three, and the number of pressure bearing zones is four; along the first direction, the support pad is used sequentially to support the head, neck, shoulders, back, waist, hips, and leg areas.

[0026] According to a second aspect of the embodiments of this specification, a sofa bed is provided, including the support cushion and backrest described in the first aspect, wherein the backrest is disposed on the upper surface of the support cushion.

[0027] This application offers the following advantages: By disassembling the support cushion into at least two support units, the sofa bed can be transformed more easily, and in its folded state, space utilization can be improved. Furthermore, by setting support areas of varying firmness on each support unit, it can better conform to the human body's curves, enhancing the user's sleeping comfort.

[0028] 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

[0029] 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.

[0030] Figure 1 This is a schematic diagram of the sofa bed in its unfolded state according to this application;

[0031] Figure 2 This is a schematic diagram of the sofa bed in its intermediate state according to this application;

[0032] Figure 3 This is a schematic diagram of the sofa bed in the folded state of this application;

[0033] Figure 4 This is a partial structural schematic diagram of the support pad in this application;

[0034] Figure 5 yes Figure 4 Top view.

[0035] Explanation of reference numerals in the attached figures:

[0036] 100 - Support cushion; 200 - Backrest;

[0037] 10-Support unit; 11a, 11b-Pressure relief area; 111-First spring pack; 12a, 12b-Pressure bearing area; 121-Second spring pack; 13-Side guard; 14-Top plate; 15-Bottom plate;

[0038] 20-Connector. Detailed Implementation

[0039] 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.

[0040] If any terms related to directional indication or positional relationship are used in the embodiments of this application, such terms are only used to explain the relative positional relationship and movement of the components in a specific posture; if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, terms such as "first" and "second" used in the embodiments of this application are only used for descriptive convenience and should not be construed as indicating or implying relative importance.

[0041] The embodiments described in this specification will now be described in detail.

[0042] Reference Figures 1-3 As shown, this application discloses a support pad 100, which includes two support units 10 and a connector 20. The connector 20 is used to connect the two support units 10 to fix the support pad 100. In some cases, three, four, etc., support units 10 can also be provided, which can be adjusted according to the length of the support pad 100 and the storage space. The specific number is not limited here.

[0043] The support pad 100 is used to switch between a folded state and an unfolded state. When the support pad 100 is in the unfolded state, the two support units 10 are abutted together along a first direction. When the support pad 100 is in the folded state, the two support units 10 are stacked along a second direction. The second direction is perpendicular to the first direction and parallel to the thickness direction of the support unit 10. Herein, the first direction is the x-direction shown in the figure, and the second direction is the z-direction shown in the figure.

[0044] Please refer to the reference again. Figures 4-5 As shown, the support unit 10 includes a pressure relief area 11 and a pressure bearing area 12. There are two pressure relief areas 11 and two pressure bearing areas 12, and the pressure relief areas 11 and the pressure bearing areas 12 are arranged alternately along the first direction.

[0045] The pressure relief zone 11 has a lower hardness than the pressure bearing zone 12. This arrangement of zones with varying hardness improves the support of the support pad 100 to the curves of the human body, thereby enhancing the user's sleep comfort.

[0046] Specifically, each support unit 10 includes two pressure relief zones 11a and 11b. One is a first pressure relief zone 11a, and the other is a second pressure relief zone 11b. A pressure-bearing zone 12 is provided between the first pressure relief zone 11a and the second pressure relief zone 11b. When the support pad 100 is in the unfolded state, the two first pressure relief zones 11a are close together.

[0047] Each pressure relief zone 11 contains multiple sets of first spring packs 111, arranged along a third direction. This third direction is perpendicular to both the first and second directions; the third direction referred to here is the y-direction shown in the diagram. The wire diameter of the first spring pack 111 ranges from 1.6mm to 2.0mm, the waist diameter ranges from 60mm to 70mm, and the hardness is less than 400N. In this embodiment, three sets of first spring packs 111 are provided in both the first pressure relief zone 11a and the second pressure relief zone 11b.

[0048] Each support unit 10 also includes two pressure-bearing zones 12a and 12b. One is a first pressure-bearing zone 12a, and the other is a second pressure-bearing zone 12b. A pressure-relieving zone 11 is provided between the first pressure-bearing zone 12a and the second pressure-bearing zone 12b.

[0049] Each pressure-bearing zone 12 is provided with at least one set of second spring coils 121, and the at least one set of second spring coils 121 is arranged along a third direction. The third direction is perpendicular to the first direction and the second direction. The wire diameter of the second spring coil 121 ranges from 2.0mm to 2.2mm, the waist diameter ranges from 60mm to 70mm, and the hardness is greater than 500N. In this embodiment, one set of second spring coils 121 is provided in the first pressure-bearing zone 12a, and four sets of second spring coils 121 are provided in the second pressure-bearing zone 12b.

[0050] The support unit 10 also includes a retaining edge 13, which is fixed to the outer periphery of the support unit 10 along a first direction and a third direction to position the edges of the first spring pack 111 and the second spring pack 121, preventing the first spring pack 111 and the second spring pack 121 from shifting or twisting due to long-term stress or frequent deformation, and maintaining the overall structural stability. The height of the retaining edge 13 is the same as the height of the pressure relief area 11 and the pressure bearing area 12.

[0051] When the support unit 10 is deployed, in order to reduce the hardness difference between two adjacent support units 10, the hardness of the retaining edge 13 where the two support units 10 meet along the first direction is the same as the hardness of the first pressure relief zone 11a. Alternatively, the absolute value of the difference between the hardness of the retaining edge 13 and the hardness of the first pressure relief zone 11a is less than 10N. In addition, the hardness of the other retaining edges 13 is consistent with the hardness of the pressure-bearing zone 12.

[0052] The support pad 100 also includes a top plate 14 and a bottom plate 15. The support unit 10 includes a first surface and a second surface disposed opposite to each other along a second direction, with the top plate 14 disposed on the upper surface of the support unit 10. The bottom plate 15 is disposed on the lower surface of the support unit 10, thereby distributing the user's weight evenly across the entire support pad 100, preventing excessive pressure on local spring packs, and preventing collapse.

[0053] The top plate 14 and the bottom plate 15 have the same hardness, and the hardness of the top plate 14 is less than that of the pressure relief area 11 and the pressure bearing area 12. For example, the hardness of both is less than 120N. The softer characteristics allow the top plate 14 and the bottom plate 15 to undergo initial deformation first, and then the first spring pack 111 and the second spring pack 121 provide secondary support, forming a graded support of the top plate 14 and the spring pack, which better conforms to the curves of the human body.

[0054] In this embodiment, each support unit 10 includes two pressure relief zones 11a and 11b and two pressure bearing zones 12a and 12b. The first pressure relief zone 11a and the guardrail 13 in two adjacent support units 10 together form a support area. Therefore, along the first direction, the support pad 100 sequentially forms seven support areas, which are used to support the head, neck, shoulders, back, waist, hips and legs respectively.

[0055] Figure 1 The connector 20 shown is a webbing, with both ends of the webbing fixed to the surfaces of two adjacent support units 10. These surfaces can be the upper, lower, or side surfaces of the two adjacent supports. To ensure connection stability, the webbing is symmetrically arranged about the center of the support pad 100 in the second direction.

[0056] This application, by employing webbing to connect the support unit 10, reduces the weight of the connector while improving the flexibility and durability of the connector 20's fixation, laying the foundation for the subsequent roll-up packaging and transportation of the support pad 100. Simultaneously, the webbing connection design also makes the support pad 100 convenient and stable when folded and unfolded.

[0057] In another embodiment, the connector 20 is a Velcro, one support unit 10 has a hook surface on its side, and the other support unit 10 has a rough surface on its side that matches the hook surface.

[0058] This application disassembles the support cushion 100 into at least two support units 10, thereby making the sofa bed more convenient to transform and improving space utilization when folded. Furthermore, by setting support areas of different firmness on each support unit 10, it can better conform to the human body's curves, improving the user's sleeping comfort.

[0059] This application also discloses a sofa bed, including a support cushion 100 and a backrest 200, the backrest 200 being disposed on the upper surface of the support cushion 100. When the support cushion 100 is unfolded, a complete sofa bed is formed.

[0060] 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 support pad characterized by, Includes at least two support units; The support pad is used to switch between a folded state and an unfolded state; When the support pad is in the unfolded state, at least two support units are brought together along a first direction; when the support pad is in the folded state, at least two support units are stacked along a second direction; the second direction is perpendicular to the first direction and parallel to the thickness direction of the support unit. The support unit includes a pressure relief area and a pressure bearing area, and there are multiple pressure relief areas and pressure bearing areas, which are arranged alternately at intervals along a first direction; The hardness of the pressure relief zone is less than that of the pressure bearing zone.

2. The support pad according to claim 1, characterized in that, Each of the support units includes at least two pressure relief zones, one of which is a first pressure relief zone and the other is a second pressure relief zone; at least one pressure-bearing zone is provided between the first pressure relief zone and the second pressure relief zone; When the support pad is in the unfolded state, the two first pressure relief zones come together.

3. The support pad according to claim 2, characterized in that, Each of the pressure relief zones is provided with multiple sets of first spring packs, which are arranged along a third direction; the third direction is perpendicular to the first direction and the second direction.

4. The support pad according to claim 2, characterized in that, The support unit further includes a retaining edge, which is fixed to the outer periphery of the support unit along a first direction and / or a third direction; the height of the retaining edge is the same as the height of the pressure relief zone and the pressure bearing zone. The first direction is perpendicular to the third direction.

5. The support pad according to claim 4, characterized in that, Along the first direction, the retaining edge is adjacent to the pressure relief area; the hardness of the retaining edge is the same as the hardness of the pressure relief area; or, the absolute value of the difference between the hardness of the retaining edge and the hardness of the pressure relief area is less than 10N.

6. The support pad according to claim 2, characterized in that, Each of the pressure-bearing zones is provided with at least one set of second spring packs, which are arranged along a third direction; the third direction is perpendicular to the first direction and the second direction.

7. The support pad according to claim 1, characterized in that, The support pad also includes a top plate and a bottom plate; The support unit includes a first surface and a second surface disposed opposite to each other along the second direction; the top plate is disposed on the upper surface of the support unit; and the bottom plate is disposed on the lower surface of the support unit. The top plate and the bottom plate have the same hardness; and / or The hardness of the top plate is less than that of the pressure relief zone and the pressure bearing zone.

8. The support pad according to claim 1, characterized in that, The support pad also includes a connector; The connector is a Velcro fastener; one of the support units has a hook side, and the other support unit has a rough side that matches the hook side; and / or The connector is a webbing, and the two ends of the webbing are respectively fixed to the surfaces of two adjacent support units.

9. The support pad according to claim 1, characterized in that, The number of pressure relief zones is three, and the number of pressure bearing zones is four; along the first direction, the support pad is used to support the head, neck, shoulders, back, waist, hips and legs in sequence.

10. A sofa bed, characterized in that It includes a backrest and a support pad as described in any one of claims 1-9, wherein the backrest is disposed on the upper surface of the support pad.

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