Elastic mat and base layer for an elastic mat

Abstract

The present disclosure provides a resilient cushion comprising a base layer and a plurality of first resilient modules. The base layer comprises a plurality of second resilient modules extending along a height direction and elastically deformable along the height direction, and arranged in a two-dimensional array along a lateral direction. Adjacent second resilient modules define a plurality of accommodation spaces. The first resilient modules extend along the height direction and are elastically deformable along the height direction, a portion of the first resilient modules being located within a corresponding one of the accommodation spaces of the base layer, and an upper end of the first resilient modules extending upwardly significantly beyond an upper surface of the base layer. The present disclosure also provides a base layer for a resilient cushion comprising a plurality of second resilient modules and a plurality of sleeves extending along the height direction. The resilient cushion and the base layer thereof of the present disclosure can provide good resilient properties, and can be made of environmentally friendly materials.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of furniture, and in particular to a resilient cushion used in furniture such as a bed or a sofa, and a base layer for the resilient cushion. BACKGROUND

[0002] In order to improve the comfort of sitting or lying, furniture such as a bed or a sofa often has a resilient cushion. There are various kinds of resilient cushions in the prior art, such as a sponge cushion, a spring cushion, etc. For a spring cushion, various solutions have been proposed in the prior art to improve its comfort, such as a spring cushion composed of independent pocketed springs, a spring cushion composed of independent spring modules, etc. However, the elastic characteristics that these spring cushions can provide are still limited, and people would like to have more resilient cushions with different elastic characteristics to choose from. In addition, people also hope that the materials used in the resilient cushions are environmentally friendly. SUMMARY

[0003] The present disclosure at least partially addresses or alleviates the above-mentioned deficiencies in the prior art.

[0004] According to an aspect of the present disclosure, there is provided a resilient cushion comprising a main resilient layer providing a main source of resilience. The main resilient layer comprises a flat base layer and a plurality of first resilient modules. The base layer defines an upper surface, a lower surface opposite to the upper surface, and a height direction substantially perpendicular to the upper and lower surfaces; the base layer comprises a plurality of second resilient modules extending along the height direction and being elastically deformable along the height direction; the plurality of second resilient modules are arranged in a two-dimensional array along a direction substantially perpendicular to the height direction, and the outer sides of adjacent second resilient modules are spaced apart at least partially in height, thereby defining a plurality of accommodation spaces; each of the accommodation spaces extends downwardly from the upper surface of the base layer and opens upwardly along the height direction, and at least a portion of each of the accommodation spaces is defined by the outer sides of the plurality of second resilient modules around it; each of the first resilient modules has an assembled state in which the first resilient module extends along the height direction and is elastically deformable along the height direction, a portion of the first resilient module is located within a corresponding one of the accommodation spaces of the base layer, and an upper end portion of the first resilient module extends upwardly significantly beyond the upper surface of the base layer.

[0005] According to another aspect of the present disclosure, there is provided a base layer for a resilient cushion, wherein the base layer is generally flat and defines an upper surface, a lower surface opposite to the upper surface, and a height direction substantially perpendicular to the upper and lower surfaces. The base layer comprises a plurality of second elastic modules and a plurality of sleeves extending along the height direction. The plurality of second elastic modules extend along the height direction and are elastically deformable along the height direction; the plurality of second elastic modules are arranged along a lateral direction substantially perpendicular to the height direction, and outer sides of adjacent second elastic modules are spaced apart along at least a portion of the height direction, thereby defining a plurality of accommodation spaces; each of the accommodation spaces extends downwardly from the upper surface of the base layer and opens upwardly along the height direction, and at least a portion of each of the accommodation spaces is defined by the outer sides of the plurality of second elastic modules surrounding the accommodation space. Each of the sleeves is arranged at a corresponding accommodation space and is connected to the plurality of second elastic modules defining the corresponding accommodation space along the lateral direction; wherein an upper end of each of the sleeves is open to allow a downwardly inserted first elastic module to be received therein.

[0006] The resilient cushion and the base layer thereof according to the present disclosure have novel structural features and thus provide good elastic properties. In a preferred embodiment of the resilient cushion according to the present disclosure, a large amount of sponge material that is not environmentally friendly can be avoided, so that the resilient cushion is environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0007] The accompanying drawings, which are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the present disclosure. In the drawings, the size and relative sizes of the elements in the drawings are not necessarily to scale. The drawings are merely schematic and are provided to further facilitate understanding of the present disclosure.

[0008] Figure 1 is a perspective view of a resilient cushion according to an embodiment of the present disclosure.

[0009] Figure 2 is shown Figure 1 the resilient cushion shown, wherein the cushion layer is raised.

[0010] Figure 3 is Figure 1 and Figure 2 is a perspective view of a main elastic layer of the resilient cushion shown in

[0011] Figure 4 is Figure 3 is a side view of the main elastic layer shown.

[0012] Figure 5 is shownFigure 3 Assembly process of the main elastic layer shown, in which the first elastic module is in a state ready for assembly.

[0013] Figure 6 Figure 3 Perspective view of the base layer of the main elastic layer shown.

[0014] Figure 7 Figure 6 Side view of the base layer shown, enlarged.

[0015] Figure 8 Figure 6 Bottom view of the base layer shown.

[0016] Figure 9 Figure 6 Top view of the base layer shown.

[0017] Figure 10 Figure 9 Different components of the base layer are identified on the top view shown with different legends.

[0018] Figure 11 Figure 6 Enlarged view of the portion of the base layer in

[0019] Figure 12 Figure 6 Section view of the base layer in along line A-A.

[0020] Figure 13 Schematic top view of a portion of the base layer of another embodiment, in which the sleeve of the base layer shown in Figure 6

[0021] Figure 14 Side view of the embodiment shown. Figure 13 DETAILED DESCRIPTION

[0022] In order to make the person skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present disclosure.

[0023] ​​​​​​​​​It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0024] Figure 1 An embodiment of an assembled elastic pad 100 is shown, which may include a main elastic layer 110 providing the primary source of elasticity for the elastic pad 100 and a pad layer 120 covering the main elastic layer 110. Figure 2 middle, Figure 1 The pad 120 of the elastic pad 100 shown is raised to expose the contents it surrounds, thereby making the main elastic layer 110 more clearly visible.

[0025] Figure 3 It shows Figure 1 and Figure 2 A perspective view of the main elastic layer 110 in the middle. Figure 4 This is a side enlarged view of the main elastic layer 110. The main elastic layer 110 may include a flat base layer 111. Figure 3 and Figure 4 In the assembly shown, multiple first elastic modules 10 can be arranged in a square array on the base layer 111. Each first elastic module 10 can extend along the height direction H and can undergo elastic deformation along the height direction H. Each first elastic module 10 can be inserted into the base layer 111 at its lower end, and a buffer pad 50 can be connected to its upper end. Figure 5 The base layer 111 and a portion of the first elastic module 10 to be inserted are shown to more clearly understand the connection relationship between the first elastic module 10 and the base layer 111. Figure 5 As shown, the base layer 111 has a plurality of receiving spaces 114, each receiving space 114 being along the height direction H of the base layer 111 (see figure). Figure 7) from the upper surface 112 of the base layer 111 and open upward. Each accommodation space 114 can receive one first elastic module 10 inserted downward. That is, each first elastic module 10 is detachable from the base layer 111, the first elastic module 10 can be inserted downward into the accommodation space 114 and thereby enter the assembled state, and can be lifted upward to thereby be detached from the base layer 111. In the assembled state as shown in Figure 3 and Figure 4 , a portion of the first elastic module 10 is located within one corresponding accommodation space 114 of the base layer 111, and the upper end of the first elastic module 10 extends upward and significantly beyond the upper surface 112 of the base layer. After each accommodation space 114 in the base layer 111 is filled with the first elastic module 10, the main elastic layer 110 shown in Figure 3 and Figure 4 is formed.

[0026] Figure 6 A perspective view of the base layer 111 is shown, from which it can be seen that the base layer 111 can be formed by a plurality of second elastic modules 20, a plurality of third elastic modules 30, and a plurality of sleeves 40. Figure 7 is Figure 6 an enlarged side view of the base layer 111 shown in Figure 6 , the base layer 111 can define or have an upper surface 112, a lower surface 113 opposite the upper surface, and a height direction H substantially perpendicular to the upper surface 112 and the lower surface 113. Returning to Figure 7 , the second elastic modules 20 of the base layer 111 can extend along the height direction H and elastically deform along the height direction. In a lateral direction substantially perpendicular to the height direction H (i.e., the extension direction of the base layer 111), the second elastic modules 20 are arranged in a two-dimensional array. Merely schematically, the second elastic modules 20 can be arranged in a square array, i.e., any four adjacent second elastic modules 20 are arranged at four vertices of a square, and all the second elastic modules 20 form a 10x10 array. One sleeve 40 is arranged in each square unit of four second elastic modules 20, which is located in an accommodation space 114 defined by the outer surfaces of the four second elastic modules 20 (see Figure 5) the sleeve 40 is identified with a non-arrowed indication line, and the accommodation space 114 is identified with an arrowed indication line. The third elastic modules 30 can be arranged only along the circumferential edge of the base layer 111. In the outermost circle of the second elastic modules 20 of the base layer 111 in the lateral direction, one third elastic module 30 is arranged between every two adjacent second elastic modules 20. The third elastic module 30 can extend along the height direction H and be connected with the second elastic modules 20 on both sides thereof, respectively.

[0027] Figure 6 The arrangement of the second elastic modules 20, the third elastic modules 30 and the sleeve 40 of the base layer 111 shown in Figures 8-10 is more clearly seen in Figure 8 and Figure 9 , respectively. Figure 6 are a bottom view and a top view of the base layer 111 shown in Figure 10 , and Figure 9 the second elastic modules 20, the third elastic modules 30 and the sleeve 40 are identified with different legends on the top view shown in

[0028] It can be seen from Figure 6 and Figure 7 that the second elastic modules 20 can be right truncated cones extending along the height direction H, the lateral dimension of which tapers upward along the height direction H. The second elastic modules 20 can extend through the entire height of the base layer 111 between the upper surface 112 and the downward surface 113 of the base layer 111. The third elastic modules 30 can be inverted truncated cones extending along the height direction H, the lateral dimension of which tapers downward along the height direction H. The third elastic modules 30 can extend through at least a majority of the height of the second elastic modules 20 along the height direction H. In the embodiment shown in Figure 7 , the third elastic modules 30 are slightly lower than the second elastic modules 20, in other embodiments, the third elastic modules 30 can be substantially the same height as or slightly higher than the second elastic modules 20. The outer surface of the third elastic modules 30 and the outer surface of the second elastic modules 20 on both sides thereof can be in substantially tangential contact, respectively, and can be connected with each other along substantially the entire contact line in a manner such as bonding, welding or stitching.

[0029] Figure 11 are enlarged views of the areas cut out from the base layer 111 along the dashed line B shown in Figure 6 , and Figure 12 are enlarged sectional views of the base layer 111 along the line A-A shown in Figure 6 , which are used for a more clear understanding of the structure related to the sleeve 40. As Figure 11As shown, reference numeral 114 indicates a receiving space defined by four adjacent second elastic modules 20, within which a sleeve 40 is disposed and connected to each of the four second elastic modules 20 defining the receiving space 114. The sleeve 40 may be made of a flexible sheet material, such as a flexible sheet-like fabric. The sleeve 40 may extend along the height direction H and may be hollow and open upwards to allow the first elastic module 10 to... Figure 5 Insert downwards into sleeve 40 as shown and enter as... Figure 3 The assembly state is shown. (Reference) Figure 12 When the second elastic module 20 is an upwardly tapering upright truncated cone, the lateral dimension of the receiving space 114 defined therein can correspondingly taper downwards along the height direction. Adapting to the shape of the receiving space 114, the sleeve 40 arranged within the receiving space 114 can also be downwardly tapering and form an inverted truncated cone. The sleeve 40 can extend along the height direction H across the entire height of the second elastic module 20. In other embodiments, the sleeve 40 can extend along the height direction H across a large portion of the second elastic module 20. The sleeve 40 can have a bottom wall 42 that closes its lower end, and the bottom wall 42 can be substantially flush with the lower end of the second elastic module 20. In the assembled state of the first elastic module 10, the lower end of the first elastic module 10 can be inserted downwards until it contacts the bottom wall 42 of the sleeve 40. Thus, neglecting the thickness of the bottom wall 42 of the sleeve 40, or even assuming the sleeve 40 has no bottom wall 42, the lower ends of the first elastic module 10 and the second elastic module 20 are substantially flush, together defining the lower surface 113 of the base layer 111. The outer surface of the sleeve 10 is connected to the adjacent outer surface of the second elastic module 20 along a connecting line 43 by means such as bonding, welding, or stitching, which extends substantially along the height direction H over the entire height of the second elastic module 20 and the sleeve 40. Figure 11 The image shows a visible portion of the connection line 43 between the sleeve 40 and the distal second elastic module 20, and the connection line between the sleeve 40 and the other second elastic modules 20 is shown in... Figure 11 It is invisible in the middle.

[0030] Combination Figure 8 The bottom view and Figure 9 The top view shown shows that the upper and lower ends of the second elastic module 20, the third elastic module 30, and the sleeve 40 in the base layer 111 have different lateral dimensions, thus revealing their truncated conical profiles that taper upwards or downwards along the height direction H.

[0031] Figure 12An exemplary structure of the second elastic module 20 is also shown, in which the second elastic module 20 can include an elastic body 21 and a flexible sleeve 22 wrapping the elastic body. The elastic body 21 can be a conical or truncated conical helical spring, and the flexible sleeve 22 can be made of a flexible sheet fabric material. The elastic body 21 can be located in the flexible sleeve 22 in a pre-compressed state. It is noted that in the pre-compressed state, the elastic body 21 such as a helical spring is partially compressed. The second elastic module 20 thus formed can be elastically deformable and at the same time have a certain rigidity. The rigidity of the second elastic module 20 can be beneficial for its shape retention in a static state, and in turn for the stability of the shape of the accommodation space 114 it defines. The first elastic module 10 and the third elastic module 30 can have similar structures as the second elastic module 20, but can have different heights or lateral dimensions. Moreover, when the second elastic module 20 is conical or truncated conical tapering upward in the height direction, the first elastic module 10 and the third elastic module 30 are conical or truncated conical tapering downward in the height direction.

[0032] Referring to Figure 6The primary role of the second elastic modules 20 is to provide the primary source of elasticity for the base layer 111 and to define the receiving spaces 114 for receiving the first elastic modules 10. The primary role of the third elastic modules 30 is to enhance the support strength that can be provided at the edges of the base layer 111 and to cooperate with the sleeves 40 to interconnect the individual second elastic modules 20 so that the entire base layer 111 becomes a unit. In other embodiments, the third elastic modules 30 can be omitted. The flexible sleeves 40 have two primary roles in the base layer 111. The first role is that of a connector. Each sleeve 40 is connected to a plurality of the second elastic modules 20 around it, and thus the sleeves 40 of the base layer 111 interconnect all of the second elastic modules 20 so that the base layer 111 becomes a unit. Moreover, through the connection of the sleeves 40 to the second elastic modules 20, the adjacent second elastic modules 20 can pull against each other to constrain the relative distance or position between the adjacent second elastic modules 20 and the lateral deformation of the second elastic modules 20, thereby ensuring the stability of the shape and size of the receiving spaces 114 in which the sleeves 40 are located. The second role is that of a holder. If the base layer 111 is shaped without the sleeves 40 but in other ways to constrain the relative position or distance between the adjacent second elastic modules 20, the first elastic modules 10 can still be held in the receiving spaces 114 by directly abutting the outer side of the second elastic modules 20. When the base layer 111 has the sleeves 40, since the sleeves 40 are flexible and the position of the sleeves 40 and their shape are actually still determined through the connection with the second elastic modules 20, the outer side of the first elastic modules 10 is actually indirectly abutting the outer side of the second elastic modules 20 via the sleeves 40, and thus is held in the receiving spaces 114. It can be appreciated that, compared to the case without the sleeves 40, the use of the sleeves 40 closely surrounding the first elastic modules 10 in the circumferential direction can work with the second elastic modules 20 to more stably hold the first elastic modules 10.

[0033] Referring to Figure 3In the assembled state of the first elastic modules 10, a portion of each first elastic module 10 can be located within the corresponding receiving space 111 of the base layer 111 or the sleeve 40, while its upper end can extend upwardly significantly beyond the upper surface 112 of the base layer 111. In this way, when the main elastic layer 110 receives a downward pressure, the first elastic modules 10 at the pressure concentration point will be significantly compressed downwardly by the pressure. At this time, the elastic deformation of the first elastic modules 10 is substantially independent, and the elastic deformation of one first elastic module 10 will not substantially affect other first elastic modules 10, thereby exhibiting similar elastic characteristics to independent spring pads. As the first elastic modules 10 continue to be compressed downwardly by the pressure, the base layer 111 at the corresponding position will also begin to significantly elastically deform to resist the pressure. The second elastic modules 20 in the base layer 111 are connected to each other via the sleeve 40, so that the elastic deformation of one second elastic module 20 will be transmitted to adjacent other second elastic modules 20 via the connection relationship. This makes the second elastic modules 1120b in the base layer not independent, but have mutual pulling effects, thereby exhibiting similar non-independent elastic characteristics to spring nets, such as a larger elastic coefficient, relatively "hard", and better support. That is, the main elastic layer 110 can simultaneously have two kinds of elastic characteristics similar to independent springs and spring nets, and sequentially present in stages as the main elastic layer 110 is compressed.

[0034] It needs to be understood that, in order for the main elastic layer 110 to significantly have the staged multiple elastic characteristics described above, the first elastic modules 10 should be significantly higher than the upper surface 112 of the base layer 111. The height of the first elastic modules 10 above the upper surface 112 of the base layer 111 can be not less than 0.3 times the height of the second elastic modules 20, and further not less than 0.5 times the height of the second elastic modules 20. As shown in FIG. 1, due to the first elastic modules 10 being higher than the upper surface 112 of the base layer 111, the portions of the first elastic modules 10 at the outermost sides in the lateral direction above the upper surface 112 of the base layer 111 form a step portion 115 inwardly recessed relative to the upper surface 112. The step portion 115 can extend along the circumferential direction of the main elastic layer 110. Referring to FIG. 2, the pad layer 120 can include a flat top cover 121 and a side wall 122 extending downwardly along the periphery of the top cover 121. The size of the side wall 122 of the pad layer 120 can be adapted to be located just above the step portion 115 of the main elastic layer 110 when the pad layer 120 is covered on the main elastic layer 110. In this way, the side wall 122 of the pad layer 120 can be in contact with the step portion 115 of the main elastic layer 110, thereby preventing the first elastic modules 10 from being compressed by the pad layer 120. Figure 4 Figure 2 Figure 4 ​​The step portion 115 is shown, and a user can sit on the step portion 115. The cooperation of the side wall 122 of the cushion layer 120 and the step portion 115 of the main elastic layer 110 can conveniently prevent the relative movement of the cushion layer 120 with respect to the main elastic layer 110. Moreover, the side wall 122 can have a certain hardness, and when a user sits on the edge of the elastic cushion 100, the user's pressure can be directly transmitted to the edge of the base layer 111 of the main elastic layer 110 by the abutting of the side wall 122 and the upper surface 112 of the base layer 111. As described above, since the second and third elastic modules are arranged along the periphery of the base layer 111, the support force is stronger. Therefore, the user can be provided with greater support at the edge of the elastic cushion 100, avoiding the "collapse" feeling, thereby improving the user experience.

[0035] Continuing to refer to Figure 3 The cushion 50 can be at the upper end of the first elastic module 10 and higher than the upper end of the first elastic module 10 in the height direction H. The cushion 50 is used to provide better contact comfort for the user. The cushion 50 can be cylindrical, or have a hemispherical shape, or a cylindrical shape with a hemispherical top surface, etc. The cushion 50 can include a flexible sleeve and a small spring or sponge filler wrapped by the flexible sleeve. The cushion 50 can be detachably inserted into the upper end of the first elastic module 10, or fixedly connected to the first elastic module 10 in a manner such as bonding, ultrasonic welding or sewing. In other embodiments, the cushion 50 can be integrally formed with the first elastic module 10. For example, a single profiled coil spring can be wrapped with a flexible sleeve, the lower part of which is conical and the upper part of which is cylindrical or hemispherical.

[0036] According to the foregoing description, the sleeve 40 in the base layer 111 has both the functions of the connecting piece and the retaining piece. In other embodiments, other types of constraint structures can be used to replace one or both functions of the sleeve 40. Figure 13 and Figure 14Another embodiment of the constraint structure is shown in FIG. 6, which schematically shows a portion of the second elastic modules 20 of the base layer 111 in plan view and side view, respectively. The constraint structure can include a plurality of connectors 45, which can be in the form of flexible strips. The connectors 45 can be made of a flexible material such as a sheet of fabric. Each connector 45 extends between two adjacent second elastic modules 20 in the lateral direction to constrain the relative distance, the relative position between the adjacent second elastic modules 20, and the deformation of each second elastic module 20 in the lateral direction perpendicular to the height direction, thereby ensuring the stability of the shape and size of the accommodation space 114 defined by the adjacent second elastic modules 20. Of course, these connectors 45 also connect the second elastic modules 20 in the base layer to each other as a whole, ensuring the integrity of the base layer structure. When the first elastic modules 10 are inserted into the accommodation spaces 114, the connectors 45 of the constraint structure can not contact the first elastic modules themselves, but directly abut the outer side surfaces of the first elastic modules through the outer side surfaces of the second elastic modules 20 to hold the first elastic modules. In other embodiments, the constraint structure can at least partially contact the first elastic modules 10 in the assembled state to hold the first elastic modules together with the second elastic modules 20. In other embodiments, the connectors 45 can not be connected to the second elastic modules 20, but contact and abut them, thereby constraining the relative distance or the relative position between the adjacent second elastic modules 20. The sleeve 40 in the foregoing embodiments can be regarded as an example of the constraint structure described herein. In other embodiments, the connectors 45 can even be omitted, and the outer surface of the first elastic modules can be directly connected to the outer surface of the second elastic modules.

[0037] In the foregoing embodiments, the second elastic modules 20 are conical and taper upward, and thereby define downwardly tapering accommodation spaces 114. In other embodiments, the second elastic modules 20 can also be formed in other shapes, such as square conical, or circular or square cylindrical, as long as the outer side surfaces of the adjacent second elastic modules are spaced apart at least partially in the height direction, and can define a plurality of accommodation spaces for accommodating the first elastic modules.

[0038] In the foregoing embodiments, the right truncated conical second elastic modules 20 around each accommodation space 114 actually have their side surfaces defining a portion of the accommodation space 114, but this is sufficient to maintain the position of the inverted truncated conical first elastic modules 10 within the accommodation space 114. In other embodiments, by selecting second elastic modules with appropriate shapes of outer side surfaces, the outer side surfaces of the adjacent second elastic modules can define the entire accommodation space 114.

[0039] In the foregoing embodiments, the sleeve 40 is composed of a sheet material, so its inner side and outer side have substantially the same shape, both being tapered or frustoconical in the height direction. In other embodiments, the sleeve 40 can have a certain thickness to allow the outer side and inner side of the sleeve to have different shapes. In this way, the inner side of the sleeve 40 can have a shape matching the outer side of the first elastic module 10, so that the inner side of the sleeve can substantially fit the outer side of the first elastic module 10 in the assembled state inside it, and the outer side of the sleeve 40 can have a shape matching the outer side of the second elastic module 20.

[0040] In the foregoing embodiments, the second elastic modules 20 in the base layer 111 are arranged in a square array. In other embodiments, the second elastic modules 20 can also be arranged in other forms, such as triangular or other shaped arrays. Corresponding to the arrangement of the second elastic modules 20, the accommodation spaces defined by the second elastic modules and the first elastic modules located in the accommodation spaces also have corresponding arrangements.

[0041] In one preferred embodiment of the main elastic layer 110, the first, second and third elastic modules are all in the form of a spiral spring wrapped with a flexible fabric sleeve, and the sleeve is also a flexible fabric material, thereby avoiding the use of a large amount of sponge material which is not conducive to the environment.

[0042] The above description is only the preferred embodiments of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An elastic pad comprising a main elastic layer providing a main source of elasticity, the main elastic layer comprising: a flat base layer defining an upper surface, a lower surface opposite to the upper surface, and a height direction substantially perpendicular to the upper and lower surfaces; the base layer comprising a plurality of second elastic modules extending along the height direction and elastically deformable along the height direction; the plurality of second elastic modules being arranged in a two-dimensional array along a lateral direction substantially perpendicular to the height direction, and outer sides of adjacent second elastic modules being spaced apart at least partially in height, thereby defining a plurality of accommodation spaces; each of the accommodation spaces extending downwardly from the upper surface of the base layer and being open upwardly along the height direction, and at least a portion of each of the accommodation spaces being defined by the outer sides of the plurality of second elastic modules surrounding it together; and a plurality of first elastic modules, each of the first elastic modules having an assembled state in which the first elastic module extends along the height direction and is elastically deformable along the height direction, a portion of the first elastic module being located within a corresponding one of the accommodation spaces of the base layer, and an upper end of the first elastic module extending upwardly significantly beyond the upper surface of the base layer; the height of the first elastic module beyond the upper surface of the base layer is not less than 0.3 times the height of the second elastic module; the first elastic module is detachable from the base layer, the first elastic module being insertable downwardly into the accommodation space and thereby into the assembled state, and being liftable upwardly and thereby detachable from the base layer; in the assembled state of the first elastic module, the outer sides of the second elastic modules directly or indirectly abut the outer sides of the first elastic module within the accommodation space defined thereby to retain the first elastic module; the first elastic module is conical or frusto-conical tapering downwardly along the height direction, and / or the second elastic module is conical or frusto-conical tapering upwardly along the height direction; the base layer further comprises a plurality of sleeves extending along the height direction, each of the sleeves being arranged within a corresponding one of the accommodation spaces and being connected to the plurality of second elastic modules defining the corresponding accommodation space along the lateral direction; wherein each of the sleeves is hollow and open upwardly to allow a first elastic module to be inserted downwardly into the sleeve and into the assembled state; the elastic pad further comprises a pad layer for covering the main elastic layer.

2. The cushion of claim 1, wherein the first and / or second elastic modules comprise an elastomer and a flexible casing enclosing the elastomer; the elastomer is located within the flexible casing in a partially compressed state; the elastomer is a conical or frusto-conical coil spring; the flexible casing is made of a sheet-like fabric material.

3. The resilient mat of claim 2, wherein, the lower end of the first elastic module is substantially flush with the lower end of the second elastic module and together define the lower surface of the base layer.

4. The resilient mat of claim 3, wherein, The sleeve extends along the height direction over a majority of the height of the second elastic modules.

5. The cushion of claim 4, wherein The inner side of the sleeve has a shape matching the outer side of the first elastic modules, such that the inner side of the sleeve can substantially conform to the outer side of the first elastic modules in the assembled state inside it; The inner side of the sleeve is tapered or frustoconical tapering downward along the height direction.

6. The cushion of claim 5, wherein The outer side of the sleeve has a shape matching the outer side of the second elastic modules; The outer side of the sleeve is tapered or frustoconical tapering downward along the height direction.

7. The resilient mat of claim 6, wherein, The sleeve has a bottom wall closing its lower end; The bottom wall is substantially flush with the lower end of the second elastic modules; in the assembled state of the first elastic modules, the lower end of the first elastic modules is in contact with the bottom wall of the sleeve.

8. The resilient mat of claim 7, wherein, The sleeve is made of a flexible sheet material; the sleeve is made of a flexible sheet fabric material.

9. The resilient mat of claim 8, wherein, Further comprising a plurality of third elastic modules extending along the height direction, arranged along the circumferential edge of the base layer, and each located between and connected with two adjacent second elastic modules.

10. The resilient mat of claim 9, wherein, The third elastic modules are tapered or frustoconical tapering downward along the height direction.

11. The cushion of claim 10, wherein The third elastic modules comprise an elastic body and a flexible sleeve wrapping the elastic body; The elastic body is located in the flexible sleeve in a partially compressed state; the elastic body is a conical or frustoconical spiral spring; the flexible sleeve is made of a flexible sheet fabric material.

12. The resilient mat of claim 11, wherein, The cushion layer comprises a flat top cover and a side wall extending downward along the periphery of the top cover; In the assembled state of the first elastic modules, the portion of the outermost first elastic modules above the upper surface of the base layer forms an inwardly recessed step relative to the upper surface of the base layer, and the size of the side wall of the cushion layer is suitable for seating the side wall of the cushion layer on the step.

13. The cushion of claim 12, wherein Further comprising a plurality of cushion pads; each cushion pad is located at the upper end of a corresponding first elastic module and is higher than the upper end of the first elastic module along the height direction; The cushion pad can be detachably or fixedly connected to the first elastic module; the cushion pad is cylindrical or hemispherical or a combination thereof.

14. A base layer for a resilient mat, wherein, The base layer is flat as a whole and defines an upper surface, a lower surface opposite to the upper surface, and a height direction substantially perpendicular to the upper and lower surfaces; The base layer comprises: a plurality of second elastic modules extending along the height direction and elastically deformable along the height direction; the plurality of second elastic modules are arranged along a transverse direction substantially perpendicular to the height direction, and the outer sides of adjacent second elastic modules are spaced apart along at least part of the height, thereby defining a plurality of accommodation spaces; each of the accommodation spaces extends downward from the upper surface of the base layer and opens upward along the height direction, and at least a portion of each of the accommodation spaces is defined by the outer sides of the plurality of second elastic modules around it together; and, a plurality of sleeves extending in the height direction, each sleeve being arranged at a corresponding receiving space and being connected to the plurality of second elastic modules defining the corresponding receiving space in the lateral direction, respectively; wherein an upper end of each sleeve is open to allow a first elastic module to be received therein by being inserted downward; the first elastic modules are detachable from the base layer, the first elastic modules being insertable downward into the receiving spaces and thereby into an assembled state, and being liftable upward and thereby detachable from the base layer.

15. The susceptor layer of claim 14, wherein, the sleeves extend in the height direction over at least a substantial part of the height of the second elastic modules.

16. The base layer of claim 15, wherein a plurality of third elastic modules extending in the height direction are further included, being arranged along a circumferential edge of the base layer, and each third elastic module being located between and connected to two adjacent second elastic modules, respectively; the third elastic modules extend in the height direction over at least a substantial part of the height of the second elastic modules relative to the second elastic modules.

17. The base layer of claim 16, wherein the sleeves are made of a flexible sheet material, and an inner side and an outer side of the sleeves are tapered or frustoconical in the height direction downward.

18. The susceptor layer of claim 17, wherein, the second elastic modules are tapered or frustoconical in the height direction upward, and / or the third elastic modules are tapered or frustoconical in the height direction downward.

19. The susceptor layer of claim 18, wherein, the second and / or third elastic modules comprise an elastic body and a flexible sleeve enclosing the elastic body; the elastic body is located in the flexible sleeve in a partially compressed state; the elastic body is a conical or frustoconical coil spring; the flexible sleeve is made of a sheet-like textile material.

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