elastic pad

Abstract

The present disclosure provides a resilient cushion. The resilient cushion has an extending plane and a height direction perpendicular to the extending plane. The resilient cushion comprises a plurality of first resilient modules and a flat base layer in the extending plane. The base layer has an upper surface and a lower surface opposite to the upper surface; and a plurality of holding recesses distributed in an array at the upper surface, each of the holding recesses being concave downward from the upper surface of the base layer. The plurality of first resilient modules extend along the height direction of the resilient cushion and are elastically deformable along the height direction. A lower end of each of the first resilient modules is inserted into the recesses so as to be held by the base layer. An upper end of each of the first resilient modules extends upward and beyond the upper surface of the base layer. The present disclosure also provides furniture comprising the resilient cushion.

Description

TECHNICAL FIELD

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

[0002] In order to improve the comfort of sitting or lying, furniture such as a bed or a sofa often has a resilient pad. There are various kinds of resilient pads in the prior art, such as a sponge pad, a spring pad, etc. Conventional resilient pads are usually one-piece, which are inconvenient to carry. Therefore, people hope to have a resilient pad that can be conveniently assembled by the user himself.

[0003] For a spring pad, various solutions have been proposed in the prior art to improve its comfort, such as a spring pad composed of independent bagged springs, a spring pad composed of independent spring modules, etc. However, the elastic characteristics that these spring pads can provide are still limited. People hope to have more resilient pads with different elastic characteristics to choose from. SUMMARY

[0004] The present disclosure at least partially solves or alleviates the above-mentioned defects existing in the prior art.

[0005] According to an aspect of the present disclosure, a resilient assembly for a resilient pad is provided. The resilient assembly comprises a first resilient module and a second resilient module extending along a height direction of the resilient pad and being elastically deformable along the height direction. In a transverse direction perpendicular to the height direction, one of the first and the second resilient modules is an outer resilient module and the other is an inner resilient module, the outer resilient module surrounding the inner resilient module in a circumferential direction thereof on an outer side of the inner resilient module. In the height direction, an upper end of the first resilient module is higher than the second resilient module, so that when the resilient assembly is subjected to a downward pressure, the pressure is first directly received by the first resilient module, and then directly received by the second resilient module or indirectly received by the second resilient module from the downward pressure transmitted by the first resilient module. The present disclosure also provides a resilient pad comprising the resilient assembly, and furniture comprising the resilient pad.

[0006] According to yet another aspect of the present disclosure, there is provided a resilient assembly for a resilient mat. The resilient assembly includes a first resilient module extending in a height direction of the resilient mat, and a holding module for holding the first resilient module. The holding module is formed with an upwardly open receiving space to allow the first resilient module to be inserted from upward to downward into the receiving space of the holding module, and to thereby hold the first resilient module. In a state where the first resilient module has been inserted into and held by the receiving space of the holding module, an upper end portion of the first resilient module extends upward out of the receiving space and is higher than the holding module, so that when the resilient assembly is subjected to a downward pressure, the pressure is first received by the first resilient module. The present disclosure also provides a resilient mat including the resilient assembly, and furniture including the resilient mat.

[0007] According to still another aspect of the present disclosure, there is provided a resilient mat. The resilient mat includes a main resilient layer providing a main source of resilience. The main resilient layer includes a plurality of resilient assemblies arranged in an array in an extending plane perpendicular to a height direction of the resilient mat. Each resilient assembly includes a first resilient module extending in the height direction of the resilient mat and elastically deformable in the height direction, and a second resilient module laterally outward of the first resilient module and circumferentially surrounding the first resilient module. In the height direction, an upper end portion of the first resilient module is higher than the second resilient module, so that when the resilient assembly is subjected to a downward pressure from outside of the resilient mat, the pressure is first directly received by the first resilient module, and then directly received by the second resilient module or indirectly received by the second resilient module from the first resilient module transmitting the downward pressure. The main resilient layer further includes an interconnecting resilient web. The interconnecting resilient web extends in a plane perpendicular to the height direction and is located between an upper surface and a lower surface of the main resilient layer. The interconnecting resilient web is connected to the second resilient module of at least a portion of the plurality of resilient assemblies for transmitting the pressure and / or elastic deformation between the second resilient modules interconnected by the interconnecting resilient web. When any one of the second resilient modules of the at least a portion of the resilient assemblies is elastically deformed due to the pressure, the pressure is transmitted to other connected second resilient modules via the interconnecting resilient web, so as to be borne by the interconnected second resilient modules together. The present disclosure also provides furniture including the resilient mat.

[0008] According to yet another aspect of the present disclosure, there is provided a holding module for a resilient cushion, for holding a first resilient module and forming a resilient assembly with the first resilient module extending in a height direction of the resilient cushion. The holding module includes a second resilient body elastically deformable in the height direction; and a mounting cylinder supported by the second resilient body. The mounting cylinder is hollow, with an inner surface thereof defining a receiving space for receiving the first resilient module. The receiving space of the mounting cylinder extends in the height direction and is open upwardly to allow the first resilient module to be inserted from upwardly to downwardly into the receiving space of the mounting cylinder, and thereby hold the first resilient module. Downward or upward movement of the mounting cylinder is capable of correspondingly compressing or releasing the second resilient body. The present disclosure also provides a resilient assembly including the holding module, a resilient cushion including the resilient assembly, and furniture including the resilient cushion.

[0009] According to yet another aspect of the present disclosure, there is provided a resilient module for a resilient cushion. The resilient module includes a second resilient body extending in a height direction of the resilient cushion and having opposite upper and lower end portions, and being elastically deformable in the height direction; a flat base surrounding the second resilient body and located between the upper and lower end portions in the height direction; and at least one flexible member connected between the second resilient body and the base to allow the second resilient body to relatively move with respect to the base in the height direction. The present disclosure also provides a resilient assembly including the resilient module, a resilient cushion including the resilient assembly, and furniture including the resilient cushion.

[0010] According to yet another aspect of the present disclosure, there is provided a resilient cushion. The resilient cushion has an extending plane and a height direction perpendicular to the extending plane. The resilient cushion includes a plurality of first resilient modules and a flat base layer in the extending plane. The base layer has an upper surface and a lower surface opposite to the upper surface; and a plurality of holding recesses distributed in an array at the upper surface, each of the holding recesses being recessed downwardly from the upper surface of the base layer. The plurality of first resilient modules extend in the height direction of the resilient cushion and are elastically deformable in the height direction. A lower end portion of each of the first resilient modules is inserted into the recess to be held by the base layer. An upper end portion of each of the first resilient modules extends upwardly and beyond the upper surface of the base layer. The present disclosure also provides furniture including the resilient cushion.

[0011] The elastic assembly and the elastic pad composed of the elastic assembly of the present disclosure are easy to assemble. Moreover, in some embodiments, since each elastic assembly is composed of two elastic modules, by respectively adjusting the elastic coefficient of each elastic module, the structural change of each elastic module, and the connection and / or positional relationship between the elastic modules, a plurality of different elastic properties can be presented. BRIEF DESCRIPTION OF DRAWINGS

[0012] 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 merely provide a general representation of the principles of the present disclosure. Certain elements in the drawings are exaggerated or minimised for clarity.

[0013] Figure 1 is a perspective view of the elastic pad of the first embodiment.

[0014] Figure 2 is a perspective view of the elastic pad. Figure 1 is a side view of the elastic pad shown in FIG. 1 along the X-axis direction.

[0015] Figure 3 is an exploded view of the elastic pad shown in FIG. 1. Figure 1

[0016] Figure 4 is a perspective view of the elastic base layer composed of the second elastic modules connected to each other during the assembly of the elastic pad shown in FIG. 1. Figure 1

[0017] Figure 5 is a schematic view showing the insertion of the first elastic module into the second elastic module during the assembly of the elastic pad shown in FIG. 1. Figure 1

[0018] Figure 6 is a perspective view of the main elastic layer formed after the insertion of the first elastic module into the second elastic module during the assembly of the elastic pad shown in FIG. 1. Figure 1

[0019] Figure 7 is a schematic view showing the laying of the first pad layer on the main elastic layer during the assembly of the elastic pad shown in FIG. 1. Figure 1

[0020] Figure 8 is a side view partial enlarged view of the area B in FIG. 1. Figure 3

[0021] Figure 9 is a side view partial enlarged view of the elastic pad shown in FIG. 1. Figure 1

[0022] ​​​​​​​Figure 10 is Figure 1 a first cushion layer in the elastic cushion shown in FIG. 1, wherein a lower surface thereof is shown upward.

[0023] Figure 11 is Figure 5 an enlarged view of the area C shown in FIG. 1.

[0024] Figure 12 is Figure 1 a plurality of first elastic modules in the elastic cushion shown in FIG. 1 in a nested state.

[0025] Figure 13 is Figure 1 a schematic view of the first elastic module in the elastic cushion shown in FIG. 1, wherein an internal structure thereof is indicated by a dashed line.

[0026] Figure 14 is Figure 1 a perspective view of the second elastic module in the elastic cushion shown in FIG. 1.

[0027] Figure 15 is Figure 14 a plurality of second elastic modules shown in FIG. 1 in a nested state.

[0028] Figure 16 is Figure 6 a side view of the main elastic layer shown in FIG. 1.

[0029] Figure 17 is a perspective view of the elastic cushion of the second embodiment.

[0030] Figure 18 Figure 17 is a side view of the elastic cushion shown in FIG. 1 along the X-axis direction.

[0031] Figure 19 Figure 17 is an exploded view of the elastic cushion shown in FIG. 1.

[0032] Figure 20 Figure 17 is a perspective view of the second elastic module in the elastic cushion shown in FIG. 1.

[0033] Figure 21 Figure 20 is a plurality of second elastic modules shown in FIG. 1 in a nested state.

[0034] Figure 22 Figure 17 is a perspective view of the elastic base layer composed of the second elastic modules connected to each other in the process of assembling the elastic cushion shown in FIG. 1.

[0035] Figure 23 Figure 17 is a side view of the main elastic layer of the elastic cushion shown in FIG. 1.

[0036] Figure 24 is a perspective view of the elastic pad of the third embodiment.

[0037] Figure 25 is a perspective view of the elastic pad of the third embodiment. Figure 24 is a side view of the elastic pad of the third embodiment, seen in the direction of the X axis.

[0038] Figure 26 is an exploded view of the elastic pad of the third embodiment. Figure 24

[0039] Figure 27 is a perspective view of a second elastic module in the elastic pad of the third embodiment. Figure 24

[0040] Figure 28 is a longitudinal sectional view of the second elastic module of the third embodiment. Figure 27

[0041] Figure 29 is a perspective view of a number of second elastic modules of the third embodiment in a nested condition. Figure 28

[0042] Figure 30 is a perspective view of an elastic base layer composed of second elastic modules interconnected during assembly of the elastic pad of the third embodiment. Figure 24

[0043] Figure 31 is a longitudinal sectional view of the elastic assembly in the elastic pad of the third embodiment. Figure 24

[0044] Figure 32 is a concave helical spring.

[0045] Figure 33 is a schematic view of an elastic assembly of another embodiment.

[0046] Figure 34 is a schematic view of an elastic assembly of yet another embodiment.

[0047] Figure 35 is a schematic representation of a main elastic layer composed of elastic assemblies of the third embodiment, in which the interconnecting elastic web is also shown. Figure 33

[0048] Figure 36 is an elastic base layer of another embodiment.

[0049] Figure 37 is a perspective view of the elastic base layer of the third embodiment, in which the upper half shows the elastic base layer after a vertical cut has been made, the cut surface showing the shape of the retaining recesses; the lower half is a side view of the upper half. Figure 36

[0050] Figure 38 is a representation of the insertion of a plurality of first elastic modules into​​​​​​​​Figure 36 is shown in the corresponding holding pocket of the elastic base layer.

[0051] Figure 39 is shown in the corresponding holding pocket of the elastic base layer. Figure 36 is shown in the corresponding holding pocket of the elastic base layer.

[0052] Figure 40 is shown in the corresponding holding pocket of the elastic base layer. DETAILED DESCRIPTION

[0053] In order to make personnel in the technical field better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in combination 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 a person of ordinary skill in the art without making creative labor should belong to the scope of protection of the present disclosure.

[0054] It should be noted that the terms "first", "second" and the like in the specification and claims of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] First embodiment:

[0056] Figure 1 and Figure 2 An assembled elastic pad 1000 according to the first embodiment of the present disclosure is shown. As shown in FIG. 1, the elastic pad 1000 is substantially flat in the X-Y plane and has a height or thickness extending in the Z direction. Typically, the elastic pad 1000 can be applied to a bed or sofa and provide an elastic support surface to provide a comfortable elastic support for a person sitting or lying on the support surface. Figure 1 Figure 2 As shown in FIG. 1, the elastic pad 1000 is substantially flat in the X-Y plane and has a height or thickness extending in the Z direction. Typically, the elastic pad 1000 can be applied to a bed or sofa and provide an elastic support surface to provide a comfortable elastic support for a person sitting or lying on the support surface.

[0057] ​The elastic pad 1000 can include a main elastic layer 1100 and a first pad layer 1200 covering the main elastic layer. The main elastic layer 1100 can be made of an elastic material and provide a main source of elasticity for the elastic pad 1000. The first pad layer 1200 can be located above the main elastic layer 1100 and closer to a human body than the main elastic layer 1100 in use. The first pad layer 1200 can generally have a substantially continuous and flat surface to provide a more human body-friendly surface for the elastic pad 1000. The first pad layer 1200 can also have a certain degree of elasticity to provide an auxiliary source of elasticity for the elastic pad 1000. The first pad layer 1200 can be made of sponge or silicone, for example, which also applies to the first pad layer in subsequent embodiments.

[0058] The main elastic layer 1100 can include a plurality of elastic assemblies 1110 arranged in an array along the X-Y plane. The structure of the elastic pad 1000 and the elastic assemblies 1110 can be more clearly seen in the exploded view of Figure 3 . As shown in Figure 3 , each elastic assembly 1110 in the main elastic layer 1100 can include a first elastic module 1120 and a second elastic module 1130 extending along the height direction Z and capable of elastically deforming along the height direction Z. The first elastic module 1120 can be inserted downward along the height direction Z into the corresponding second elastic module 1130 and held thereby. That is, the second elastic module 1130 can be both an elastic module and a holding module for holding the first elastic module 1120. In the assembled state, the first elastic modules 1120 of the respective elastic assemblies 1110 can be independent of each other, while the second elastic modules 1130 of adjacent elastic assemblies 1110 can be connected to each other.

[0059] In assembly, the second elastic modules 1130 of the respective elastic assemblies 1110 can be connected to each other to form an elastic base layer 1140 having elasticity along the height direction Z, as shown in Figure 4 . The elastic base layer 1140 can be located in the extension plane (i.e., the X-Y plane) of the elastic pad. The elastic base layer 1140 is flat and has an upper surface 1141 and a lower surface 1142 opposite the upper surface 1141. The elastic base layer 1140 can have a plurality of holding recesses 1143 distributed in an array at the upper surface thereof, each holding recess 1143 being recessed downward from the upper surface 1411 of the elastic base layer 1140. As will be clear below, the holding recess 1143 can be formed by the accommodation space 1135 of the second elastic module 1130 for holding the corresponding first elastic module 1120. Then, as shown in Figure 5 and Figure 6As shown, the lower end of the first elastic module 1120 of each elastic assembly 1110 can be inserted downward from the top into the corresponding second elastic module 1130, i.e. into the holding recess 1143 of the elastic base layer 1140, so as to be held by the second elastic module 1130 or the entire elastic base layer 1140. The upper end of the first elastic module 1120 can extend upward beyond the second elastic module 1130 or the upper surface 1141 of the elastic base layer 1140. For the sake of clarity of illustration, Figure 5 only a portion of the elastic base layer 1140 is shown, and several first elastic modules 1120 are shown by way of example to be inserted into corresponding second elastic modules 1130. It is to be understood that each first elastic module 1120 and the corresponding second elastic module 1130 form the aforementioned elastic assembly 1110 (which is schematically represented in Figure 5 by the rectangular dashed box 1110). After all the first elastic modules 1120 have been inserted into the respective corresponding second elastic modules 1130, the main elastic layer 1100 shown in Figure 6 is formed, which is composed of a plurality of elastic assemblies 1110 arranged in an array.

[0060] Finally, as shown in Figure 7 , a first pad layer 1200 can be laid on the main elastic layer 1100 composed of the assembled elastic assemblies 1110, to form the assembled elastic pad 1000 shown in Figure 1 and Figure 2 .

[0061] Figure 8 and Figure 9 the assembly process of the elastic pad 1000 is shown more clearly in the form of a partial enlarged view. Figure 8 is Figure 3 an enlarged view of the area B in the side view looking in the X direction in the exploded view of Figure 8 , in which the internal structure of the first elastic module 1120 is additionally shown by dashed lines. Again, it is to be understood that each first elastic module 1120 and the corresponding second elastic module 1130 form the aforementioned elastic assembly 1110 (which is schematically represented in Figure 8 by the rectangular dashed box 1110). As shown in Figure 4 , after the second elastic modules 1130 of the elastic assemblies 1110 have been connected to form the elastic base layer 1140 as shown in Figure 1 , the first elastic modules 1120 of the elastic assemblies 1110 can be inserted downward into the second elastic modules 1130 in the direction indicated by the arrow A, i.e. in the height direction Z described above, to form Figure 2 , Figure 6 and Figure 7the main elastic layer 1100. Finally, the first cushion layer 1200 is laid down on the main elastic layer 1100 composed of a plurality of elastic assemblies 1110 in the direction indicated by arrow A, forming the assembled elastic cushion 1000 as shown in Figure 9

[0062] In order to limit the position of the first cushion layer 1200 relative to the main elastic layer 1100 below it in the horizontal direction (in the plane of the X and Y directions), the first cushion layer 1200 can have a plurality of limiting protrusions 1210. Referring to Figure 8 During assembly, each limiting protrusion 1210 can extend into the interior of the corresponding first elastic module 1120 in the direction of arrow A, so as to limit the movement of the first cushion layer 1200 relative to the main elastic layer 1100 in the horizontal direction. After assembly is complete, as shown in Figure 9 the first elastic module 1120 of each elastic assembly 1110 can be held in place by the corresponding second elastic module 1130, and the first cushion layer 1200 can be laid on each elastic assembly 1110. In particular, Figure 9 The internal structure of the elastic assembly 1110 on the far right is also shown exemplarily in dashed lines. It can be seen that the limiting protrusion 1210 of the first cushion layer 1200 extends into the interior of the first elastic module 1120, thereby limiting the relative position of the first cushion layer 1200 relative to the elastic assembly 1110 below it.

[0063] In order to more clearly show the first cushion layer 1200 with limiting protrusions 1210, Figure 10 the lower surface 1211 of the first cushion layer 1200 in FIG. 4 is shown facing upwards. Referring to Figure 10 , the first cushion layer 1200 can include a flat main body 1220. The main body 1220 has a lower surface 1221 facing downwards in the assembled state. Adjacent to the edges of the main body 1220, a plurality of limiting protrusions 1210 extend outwardly from the lower surface 1221 of the main body 1220.

[0064] Figure 11 is Figure 5 ​Figure 9 is an enlarged view of the area C of Figure 8, which more clearly shows the first elastic module 1120 and the second elastic module 1130 of each elastic assembly 1110. The first elastic module 1120 can be made of an elastic material so as to be able to provide an elastic deformation occurring in the height direction Z. The first elastic module 1120 can be conical or frustoconical in shape as a whole. In the assembled state, the lateral dimension of the first elastic module 1120 tapers along the height direction Z from an upper end or enlargement end 1121 to a lower end or reduction end 1122, presenting an inverted conical or frustoconical shape. The first elastic module 1120 can be hollow and open outwards at its enlargement end 1121, forming an opening 1123. Such a hollow and conical or frustoconical first elastic module 1120 can on the one hand provide varying elastic characteristics due to the different dimensions along the height direction Z, and on the other hand facilitate storage and transport in the non-assembled state. As shown in Figure 12 Figure 9, via the opening 1123 of the enlargement end 1122 of the first elastic module 1120, it is possible to insert one first elastic module 1120 inside another first elastic module 1120, so as to be able to stack a plurality of first elastic modules 1120 one inside the other, in order to reduce the storage footprint.

[0065] Referring back to Figure 8 and Figure 9 , the first elastic module 1120 can be in the form of a bag spring of conical coil springs wrapped in a flexible material, which is better seen in Figure 13 Figure 10. Figure 13 which more clearly shows the internal structure of this first elastic module 1120. As Figure 13As shown, the coil spring 1124 as the elastic body can taper from the enlarged end portion 1121 to the reduced end portion 1122 of the first elastic module 1120. The outer surface and the inner surface of the first elastic module 1120 can be formed by an outer flexible material layer 1125 and an inner flexible material layer 1126, respectively, and the coil spring 1124 can extend between the outer flexible material layer 1125 and the inner flexible material layer 1126. The outer flexible material layer 1125 and the inner flexible material layer 1126 are connected to each other to form a flexible sleeve. The coil spring 1124 can be encapsulated in the flexible sleeve in a pre-compressed state (not fully free state), so that the first elastic module 1120 formed thereby can be elastically deformed while having a certain rigidity. The rigidity of the first elastic module can be beneficial for the shape retention of the first elastic module 1120 in a static state, and can help to provide a suitable initial hardness or initial support force for the elastic pad 1000. In other embodiments, the flexible sleeve encapsulating the coil spring 1124 can also be a single flexible material layer covering the outer surface of the coil spring 1124. In other embodiments, the coil spring 1124 can also be pre-compressed in other ways, such as the way of the flexible band used by the second elastic module 1130 described below. In some embodiments, the elastic body of the first elastic module can also take other forms or materials other than the coil spring 1124, such as a sponge body or a plurality of vertically extending long strip-shaped leaf springs arranged in a circumferential direction, etc.

[0066] Figure 14 A second elastic module 1130 applicable to the elastic assembly 1110 is schematically shown. As shown, the second elastic module 1130 can include a coil spring 1133 capable of elastically deforming. The coil spring 1133 can serve as the elastic body of the second elastic module 1130, and is hollow. The coil spring 1133 can be mounted and constrained between a base 1131 and an end cover 1132. The flat base 1131 can be located at the upper end of the second elastic module 1130, and the end cover 1132 can be located at the lower end of the second elastic module 1130. Specifically, the coil spring 1133 can abut against the base 1131 at one end thereof (the upper end in this case), and can abut against the end cover 1132 at the other end thereof (the lower end in this case). The coil spring 1133 can also be connected to the base 1131 at the upper end thereof by, for example, a snap-fit manner. The abutment or connection between the coil spring 1133 and the base 1131 can be substantially rigid, that is, the movement of the base 1131 and the upper end of the coil spring 1133 in the height direction Z can be synchronous. Figure 14 Figure 14 Figure 14

[0067] ​​​On the outside of the coil spring 1133, a plurality of flexible straps 1134 extend between the base 1131 and the end cap 1132. In this way, by predetermining the length of the flexible straps 1134, the distance between the base 1131 and the end cap 1132 can be limited, thereby constraining the distance between the upper end and the lower end of the coil spring 1133, so that the coil spring 1134 can be constrained in a pre-compressed state (non-fully free state) between the base 1131 and the end cap 1132. With the aid of the pre-compressed coil spring 1134, the second elastic module 1130 formed thereby can both elastically deform and at the same time have a certain stiffness. This stiffness possessed by the second elastic module 1130 can be conducive to the shape retention of the second elastic module 1130 in a static state, and can provide a suitable initial hardness or initial support force when it is compressed and deformed. In other embodiments, the coil spring 1133 of the second elastic module 1130 can also be packaged and pre-compressed in a similar manner to the bellow spring of the first elastic module 1120 shown in Figure 13 and then the upper end thereof is mounted to the base 1131 described previously. In appropriate cases, the second elastic module 1130 can also use an elastic body other than a coil spring, such as a sponge, a leaf spring, etc.

[0068] The base 1131 of the second elastic module 1130 can have a connecting portion 1136 for being connected to the base 1131 of the second elastic module 1130 of the adjacent other elastic assembly 1110 during assembly, so as to form, for example, the elastic base layer 1140 shown in Figure 4 For the convenience of assembly, the bases 1131 of several second elastic modules 1130 can be integrally formed to form a module containing a plurality of second elastic modules. In this way, during assembly, instead of splicing the second elastic modules one by one, only a smaller number of modules need to be spliced together. In fact, Figure 4 Each row of second elastic modules 1130 in the X direction in

[0069] The second elastic module 1130 and the coil spring 1133 thereof can be tapered or truncated conical in the direction from the base 1131 to the end cap 1132, and in the assembled state, the tapering or truncated coning can be inverted. The second elastic module 1130 can be hollow, and the base 1131 thereof can have an opening 1137, so that the second elastic module 1130 has an upwardly open receiving space 1135. The receiving space 1135 can be defined by the inner side of the coil spring 1133 and the upper surface of the end cap. In this way, with reference to the previous drawings, in particular Figures 8-10The first elastic module 1120 is allowed to be inserted from the upper direction into the receiving space 1135 of the second elastic module 1130, so that the first elastic module 1120 can be held by the second elastic module 1130, forming the assembled elastic assembly 1110. The receiving space 1135 can also be an inverted cone or truncated cone tapering in the direction from the base 1131 to the end cover 1132, so that it can be substantially conical with the inverted cone or truncated cone first elastic module 1120, so that the second elastic module 1130 can hold the first elastic module 1120 more stably, which can be seen from Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9 .

[0070] It can be seen that this conical fit between the first elastic module 1120 and the receiving space 1135 of the second elastic module 1130 is particularly convenient for assembly. Only a single insertion action of inserting the first elastic module 1120 from the upper direction into the receiving space 1135 of the second elastic module 1130 is needed to make the second elastic module 1130 hold the first elastic module 1120, thereby assembling them into the required elastic assembly 1110, without the need for complex alignment and / or connection operations. This conical fit also facilitates disassembly of the elastic assembly 1110, in which a single pulling action of pulling the first elastic module 1110 out of the receiving space 1135 of the second elastic module 1120 is used to make the first elastic module 1120 disengage from the second elastic module 1120. In other embodiments, the first elastic module 1120 can have other shapes of outer surfaces, and the receiving space 1135 of the second elastic module 1130 can also have shapes matching the outer surfaces of the first elastic module 1120, thereby forming other non-conical surface fits, while still having the aforementioned advantages of easy assembly and disassembly.

[0071] Moreover, since the second elastic module 1130 has a hollow conical or truncated conical shape, and the base 1131 at its upper end has an opening 1137, this allows another second elastic module 1130 to be inserted into the receiving space 1135 of the current second elastic module 1130 via the opening 1137, so that multiple second elastic modules 1130 can be nested together in a non-assembled state, as shown in Figure 15 , which facilitates compact volume storage and transportation of the second elastic modules 1130 in a non-assembled state.

[0072] It should also be noted that, referring to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9In the assembled state where the first elastic module 1120 is inserted into the second elastic module 1130, the upper end of the first elastic module 1120 is protruded out of the accommodating space 1135 of the second elastic module 1130 in the height direction Z, so that the upper end of the first elastic module 1120 is higher than the second elastic module 1130. Meanwhile, in the lateral direction perpendicular to the height direction Z, the second elastic module 1130 circumferentially surrounds and holds the first elastic module 1120 outside. In this way, when the elastic pad 1000, especially each elastic assembly 1110 in the main elastic layer 1100, is subjected to a downward pressure, the first elastic module 1120 directly receives the pressure, and the second elastic module 1130 indirectly receives the downward pressure transmitted by the first elastic module 1120.

[0073] Figure 16 is Figure 6 a side view of the main elastic layer 1100, the elastic characteristics of the main elastic layer 1100 will be described below with reference to Figure 16 As shown in Figure 16 , the main elastic layer 1100 can include a plurality of elastic assemblies 1110 arranged in an array in the X-Y plane. In the case where one of the plurality of elastic assemblies 1110a is subjected to a downward pressure F, or in other words, the elastic assembly 1110a is located at the concentration point of the pressure F, the elastic assembly 1110a will undergo a first compression process and optionally a second compression process.

[0074] In the first compression process, the first elastic module 1120a in the elastic assembly 1110a first directly receives the downward pressure F and is significantly compressed downward, while the second elastic module 1130a is not compressed or not significantly compressed downward. Specifically, for the first elastic module 1120a with an inverted conical or truncated conical coil spring, as shown in Figure 13 , the upper part has a relatively small elastic coefficient (i.e., relatively soft) due to a larger diameter, while the lower part has a relatively large elastic coefficient (i.e., relatively hard) due to a smaller diameter. In this way, under the action of the pressure F, the upper part of the first elastic module 1120a will be significantly compressed first. In the first compression process, although the second elastic module 1130a will receive the pressure transmitted from the first elastic module 1120a due to contact with the first elastic module 1120a, the transmitted pressure is basically dispersedly acting on the bottom surface and the conical side surface of the second elastic module 1130a, and the upper end of the second elastic module 1130a does not receive a significant downward pressure, so that the second elastic module 1130a is not significantly compressed.

[0075] Moreover, as shown in Figure 4The second elastic modules 1130 of the elastic assemblies 1110 are interconnected by the bases 1131 at the bases 1131, which makes the second elastic modules 1130 not independent from each other but have mutual influence. Thus, when the second elastic module 1130a receives a downward pressure, the pressure is transmitted to the second elastic modules 1130 of the surrounding area via the bases 1131 and is shared by them. This also makes the second elastic module 1130a not significantly deformed in the first compression process. Returning to Figure 16 The interconnected bases 1131 of the second elastic modules 1130 can actually form an interconnected elastic net (such as the part enclosed by the dashed line frame 1150) extending in the X-Y plane. The interconnected elastic net 1150 is used to interconnect or link the second elastic modules 1130 of the elastic assemblies 1110 in the main elastic layer 1100, so as to transmit the pressure and / or elastic deformation between the interconnected second elastic modules 1130, thereby forming the aforementioned mutual influence. Thus, when the elastic assembly 1110a is compressed to a certain extent so that the second elastic module 1130a thereof starts to elastically deform, the pressure can be transmitted to the second elastic modules 1130 of other elastic assemblies 1110 (especially the adjacent elastic assemblies) via the interconnected elastic net 1150, so that the other elastic assemblies 1110 (especially the second elastic modules 1130) can share the pressure. In the present embodiment, since the bases 1131 are located at the upper end of the second elastic modules 1130 or the spiral springs 1133, the bases 1131 are located between the upper end and the lower end of the assembled elastic assembly 1110, which also makes the interconnected elastic net 1150 located between the upper surface and the lower surface of the entire main elastic layer 1100. In other embodiments, only a part of the bases 1131 of the second elastic modules 1130 in the main elastic layer 1100 can be interconnected, and the interconnected elastic net 1150 formed thereby can only transmit the pressure / elastic deformation between the interconnected second elastic modules 1130, thereby contributing different elastic characteristics to the main elastic layer 2100.

[0076] Finally, alternatively or additionally, the second elastic module 1130a can also be made not to be significantly deformed in the first compression process by itself having a larger elastic coefficient, such as a harder spiral spring 1133.

[0077] It should be noted that in the first compression process, the elastic deformation of the main elastic layer 1100 is mainly provided by the elastic deformation of the first elastic modules 1120 of the elastic assemblies 1110 alone. Moreover, the first elastic modules 1120 of the elastic assemblies 1110 are independent from each other, thus presenting the elastic characteristics of an obvious independent spring pad.

[0078] When the deformation of the first elastic module 1120a is not enough to fully resist the pressure F during the first compression process, a second compression process can be performed after the first compression process. During the second compression process, the entire elastic assembly 1110a is further compressed downward by the pressure F, and at this time, the first elastic module 1120a and the second elastic module 1130a are substantially synchronously compressed downward. Moreover, as the second elastic module 1130a is compressed downward, its base 1131 immediately transfers the deformation of the second elastic module 1130a directly to the second elastic module 1130 of the adjacent elastic assembly 1110, so that the adjacent second elastic module 1130 is drawn in to participate in resisting the pressure F. From the perspective of the interconnected elastic net 1150 formed by the interconnected bases 1131, once the second elastic module 1130a is compressed, the compression deformation of the second elastic module 1130a is directly transferred to the second elastic module 1130 of the adjacent elastic assembly 1120 via the interconnected elastic net 1150 connected thereto, so as to be borne by the second elastic module 1130 of the adjacent elastic assembly 1120 receiving the deformation together with the current elastic assembly 1120a. In this way, the second compression process exhibits a higher elastic coefficient than the first compression process. In other words, one feels that the second compression process of the main elastic layer 1100 exhibits a more "hard" than the first compression process.

[0079] In summary, the first and second compression processes show that the main elastic layer 1100 and the elastic pad 1000 having the same have the following elastic characteristics: 1) exhibit a clear two-stage elastic characteristic from "soft" to "hard"; and 2) exhibit a clear independent elastic pad characteristic in the first stage exhibiting "soft", i.e., the compression states of different regions of the elastic pad 1000 are independent and do not affect each other.

[0080] Second embodiment:

[0081] Figure 17 And Figure 18 An assembled elastic pad 2000 according to the second embodiment of the present application is shown. As Figure 17 And Figure 18As shown, the elastic pad 2000 is substantially flat in the X-Y plane and has a height or thickness extending in the Z direction. The elastic pad 2000 can include a main elastic layer 2100 and a first pad layer 2200 covering the main elastic layer. The main elastic layer 2100 can be made of an elastic material and provide a main source of elasticity for the elastic pad 2000. The first pad layer 2200 can be located above the main elastic layer 2100 and closer to a human body in use than the main elastic layer 1100. The first pad layer 2200 can generally have a substantially continuous and flat surface to provide a more human body-friendly surface for the elastic pad 2000. The first pad layer 2200 can also have a certain degree of elasticity to provide an auxiliary source of elasticity for the elastic pad 2000.

[0082] The main elastic layer 2100 can include a plurality of elastic assemblies 2110 arranged in an array along the X-Y plane. The structure of the elastic pad 2000 and the elastic assemblies 2110 can be more clearly seen in the exploded view of FIG. 2B. As shown, each elastic assembly 2110 in the main elastic layer 2100 can include a first elastic module 2120 and a second elastic module 2130 extending in the height direction Z and capable of elastically deforming in the height direction Z. The first elastic module 2120 can be inserted into and held by the corresponding second elastic module 2130 in the height direction Z. That is, the second elastic module 2130 can be both an elastic module and a holding module for holding the first elastic module 2120. In the assembled state where the first elastic module 2120 is inserted into the second elastic module 2130, the upper end of the first elastic module 2120 is outside the receiving space 2135 (see FIG. 2C) of the second elastic module 2130 in the height direction Z, such that the upper end of the first elastic module 2120 is higher than the second elastic module 2130. Meanwhile, in the lateral direction perpendicular to the height direction Z, the second elastic module 2130 circumferentially surrounds and holds the first elastic module 2120 outside. In this way, when the elastic pad 2000, particularly each elastic assembly 2110 in the main elastic layer 2100 thereof, is subjected to a downward pressure, the first elastic module 2120 directly receives the pressure, and the second elastic module 2130 indirectly receives the downward pressure transmitted by the first elastic module 2120. Figure 19 Figure 19 Figure 20

[0083] It is noted that in the assembled state, the first elastic modules 2120 of the elastic assemblies 2110 can be independent of each other, while the second elastic modules 2130 of adjacent elastic assemblies 2110 can be connected to each other.

[0084] ​​​The first elastic module 2120 of each elastic assembly 2110 in the elastic pad 2000 can adopt a similar shape and structure as the first elastic module 1120 in the elastic pad 1000 of the first embodiment, as shown in Figure 13 The assembly process of the elastic pad 2000 is also similar to that of the elastic pad 1000 of the first embodiment. The main difference between the elastic pad 2000 and the elastic pad 1000 is the structure of the second elastic module 2130, and otherwise the previous description of the elastic pad 1000 is basically applicable to the elastic pad 2000.

[0085] Figure 20 A second elastic module 2130 applicable to the elastic assembly 2110 is schematically shown. As shown in Figure 20 , the second elastic module 2130 can include a helical spring 2133 capable of elastic deformation. The helical spring 2133 can serve as the elastic body of the second elastic module 2130 and is hollow. The helical spring 2133 can be mounted and constrained between an annular seat 2139 and an end cap 2132. Specifically, the helical spring 2133 can abut against and be held by the seat 2139 at one end thereof (the upper end in Figure 20 ), and can abut against the end cap 2132 at the other end thereof (the lower end in Figure 20 ). On the outside of the helical spring 2133, a plurality of flexible straps 2134 extend between the seat 2139 and the end cap 2132. In this way, by predetermining the length of the flexible straps 2134, the distance between the seat 2139 and the end cap 1132 can be limited, so that the helical spring 2134 can be constrained between the seat 2139 and the end cap 2132 in a pre-compressed state (not fully free state). With the help of the pre-compressed helical spring 2134, the formed second elastic module 2130 can both elastically deform and have a certain stiffness. The stiffness of the second elastic module 2130 can be beneficial to the shape retention of the second elastic module 2130 in the static state, and can provide a suitable initial hardness or initial support force when it is compressed and deformed. In other embodiments, the helical spring 2133 of the second elastic module 2130 can also be packaged and pre-compressed in a similar way to the burlap spring of the first elastic module 1120 as shown in Figure 13 , and then the upper end thereof is mounted to the seat 2139. In appropriate cases, the second elastic module 1130 can also use an elastic body other than a helical spring, such as a sponge, a leaf spring, etc.

[0086] Returning to Figure 20A flat base 2131 can surround the helical spring 2134 and be positioned below the upper end of the helical spring 2133, or below the seat ring 2139, thus located between the seat ring 2139 and the end cap 2132 in the vertical direction (height direction Z). In other words, the base 2131 can be below the upper end of the second elastic module 2130 and located between the upper and lower ends of the second elastic module 2130. Typically, in the height direction Z, the base 2131 can be located between half the height of the helical spring 2133 and its upper end. The base 2131 can be connected to the seat ring 2139 located at the upper end of the helical spring 2134 via a flexible member 2138. This allows relative movement in the height direction Z between the upper end of the helical spring 2134, or the seat ring 2139, and the base 2131. The flexible element 2138 can be elastic, allowing force to be transmitted between the seat ring 2139 and the base 2131 in an elastic deformation manner, and can self-restore to its initial relative position after relative movement between the seat ring 2139 and the base 2131. The end cap 2132, the flexible strap 2134, and the flexible element 2138 can be made of the same material and can be integrally molded. In other embodiments, when the seat ring 2139 is omitted, the flexible element 2138 can also be directly attached to the upper ends of the base 2131 and the helical spring 2133, respectively.

[0087] The base 2131 of the second elastic module 2130 may have a connecting portion 2136 for interconnecting with the base 2131 of other adjacent elastic components 2110 during assembly, to form, for example... Figure 22 The elastic base layer 2140 shown is described in the first embodiment. A description of this elastic base layer 2140 can be found in the reference section of the first embodiment. Figure 4 The description of the elastic base layer 1140 will not be repeated here. Similar to the first embodiment, for ease of assembly, the bases 2131 of several second elastic modules 2130 can be integrally formed to create a module containing multiple second elastic modules. Figure 20 As shown, these connecting portions 2136 may include connecting portions 2136a and 2136b with concave and convex structures. The protrusion 2136a can be inserted into the recess 2136b of the base 2131 of an adjacent second elastic module 2130, and the recess 2136b can receive the protrusion 2136a of the base 2131 of the other second elastic module 2130. These connecting portions 2136 may also include connecting portions 2136c and 2136d of the "slide rail-groove" type. The slide rail 2136c can be inserted into the groove 2136d of the base 2131 of an adjacent second elastic module 2130, and the groove 2136d can receive the slide rail 2136c of the base 2131 of the other second elastic module 2130.

[0088] like Figure 20 As shown, the second elastic module 2130 and its helical spring 2133 can be tapered or truncated cone-shaped, tapering from the seat ring 2139 to the end cap 2132, and in the assembled state, the tapered or truncated cone shape can be inverted. The second elastic module 2130 can be hollow, and its seat ring 2139 can have an opening 2137, thereby allowing the second elastic module 2130 to have an upwardly opening receiving space 2135. The receiving space 2135 can be defined by the inner side of the helical spring 2133 and the upper surface of the end cap 2132. In this way, the first elastic module 2120 can be inserted from above into the receiving space 2135 of the second elastic module 2130, thereby allowing the second elastic module 2130 to hold the first elastic module 2120, forming the assembled elastic assembly 2110. The receiving space 2135 can also be an inverted cone or frustoconical shape that tapers gradually from the seat ring 2139 to the end cap 2132. Therefore, it can substantially form a conical surface fit with the inverted cone or frustoconical first elastic module 2120, thereby allowing the second elastic module 2130 to more securely hold the first elastic module 2120. It can be seen that this conical surface fit between the receiving space 2135 of the first elastic module 2120 and the second elastic module 2130 is particularly convenient for assembling and disassembling the elastic component 2110, as can be seen in the preceding description of the elastic component 1110 in the first embodiment, which will not be repeated here. In other embodiments, other shaped surface fits between the receiving space 2135 of the first elastic module 2120 and the second elastic module 2130 that facilitate assembly and disassembly are also feasible. Moreover, the cone or frustoconical shape of the second elastic module 2130 and its upwardly opening receiving space 2135 also allow multiple second elastic modules 2130 to be stacked together, such as... Figure 21 As shown, this facilitates the storage and transport of the second elastic module 2130 in a compact volume when unassembled. It should be noted that, for ease of stacking, the flexible element 2138 may extend outward and downward from the upper end of the helical spring 2133.

[0089] Figure 23 yes Figure 17 and Figure 18 A side view of the main elastic layer 2100, which will be referred to below. Figure 23 To describe the elastic characteristics of the main elastic layer 2100. For example... Figure 23As shown, the main elastic layer 2100 can include a plurality of elastic assemblies 2110 arranged in an array in the X-Y plane. In the case that one of the elastic assemblies 2110a receives a downward pressure F, or in other words, the elastic assembly 2110a is located at the point of concentration of the pressure F, the elastic assembly 2110a will undergo a first compression process and optionally a second and third compression process.

[0090] In the first compression process, the first elastic module 2120a in the elastic assembly 2110a first directly receives the downward pressure F and is significantly compressed downward, while the second elastic module 2130a is not compressed or not significantly compressed downward. Specifically, for the first elastic module 2120a having an inverted conical or truncated conical coil spring, its upper portion has a relatively small elastic coefficient (i.e., relatively soft) due to having a larger diameter, while its lower portion has a relatively large elastic coefficient (i.e., relatively hard) due to having a smaller diameter. In this way, under the action of the pressure F, the upper portion of the first elastic module 2120a will first be significantly compressed. In the first compression process, although the second elastic module 2130a will receive pressure transmitted from the first elastic module 2120a due to contact with the first elastic module 2120a, the transmitted pressure is substantially dispersedly acting on the bottom surface and the conical side surface of the second elastic module 2130a, and the upper end portion of the second elastic module 2130a does not receive a significantly concentrated downward pressure, so the second elastic module 1130 will not be significantly compressed.

[0091] Furthermore, referring to Figure 22 , the second elastic modules 2130 of the elastic assemblies 2110 form an elastic base layer 2140 through mutual connection at the bases 2131, which makes each second elastic module 2130 not independent but mutually influenced. In this way, in the case that the flexible member 2138 is an elastic member capable of transmitting force, when the second elastic module 2130a receives a downward pressure, the pressure will be transmitted to the second elastic modules 2130 in the surrounding area through the flexible member 2138 and the base 2131, and they will work together to bear the pressure. This also makes the second elastic module 2130a not significantly deformed in the first compression process.

[0092] Finally, alternatively or additionally, the second elastic module 2130a can also be made not to be significantly deformed in the first compression process by itself having a larger elastic coefficient, such as a harder coil spring 2133.

[0093] It is noted that in the first compression process, the elastic deformation of the main elastic layer 2100 is mainly provided by the elastic deformation of the first elastic modules 2120 of the elastic assemblies 2110 alone. Moreover, the first elastic modules 2120 of the elastic assemblies 2110 are independent of each other, thus presenting the elastic characteristics of an obvious independent spring pad.

[0094] When the deformation of the first elastic module 2120a is not enough to fully resist the pressure F in the first compression process, a second compression process can be performed after the first compression process. In the second compression process, the entire elastic assembly 2110a is further compressed downward by the pressure F, at which time the first elastic module 2120a and the second elastic module 2130a are substantially synchronously compressed downward.

[0095] The upper end of the second elastic module 2130a, or its seat 2139, is connected to the base 2131 via a flexible member 2138. When the flexible member 2138 is an elastic member, at the beginning of the second compression process, as the second elastic module 2130a is compressed downward, the downward displacement of the seat 2139 caused by the deformation of the second elastic module 2130a can be significantly absorbed by the flexible member 2138 and will not be significantly transmitted to the second elastic modules 2130 of the adjacent elastic assemblies 2110. That is, in the second compression process, the pressure F is mainly resisted by the deformation of the first elastic module 2120a and the second elastic module 2130a, and the interconnected elastic network 2150 and the adjacent elastic assemblies 2110 do not significantly participate. The main elastic layer 2110 of the second embodiment will exhibit a higher elastic coefficient in the second compression process than in the first compression process. In other words, one will feel that the second compression process of the main elastic layer 2100 is more "hard" than the first compression process.

[0096] When the deformation of the first elastic module 2120a and the second elastic module 2130a is not enough to fully resist the pressure F in the second compression process, a third compression process can be performed after the second compression process.

[0097] In the third compression process, since the flexible member 2138 can no longer absorb the deformation of the second elastic module 2130a, or since the seat 2139 of the second elastic module 2130a has been moved downward to a position substantially flush with the base 2131, the base 2131 will begin to substantially bear the pressure F, and will directly transfer the deformation of the second elastic module 2130a to the second elastic modules 2130 of the adjacent other elastic assemblies 2110, so that the adjacent second elastic modules 2130 will be drawn in to participate in resisting the pressure F. From the perspective of the interconnected elastic net 2150 formed by the interconnected bases 2131, when the bases 2131 begin to substantially bear the pressure F, that is, the interconnected elastic net 2150 begins to substantially bear the pressure F. At this time, the interconnected elastic net 2150 will significantly participate in the compression process, and will transfer the pressure F to the second elastic modules 2130 of the adjacent other elastic assemblies 2120, so as to be borne by the second elastic modules 2130 of the adjacent other elastic assemblies 2120 together with the current elastic assembly 2120a. In this way, the third compression process will exhibit a higher elastic coefficient than the second compression process. In other words, people will feel that the third compression process of the main elastic layer 2100 is more "hard" than the second compression process.

[0098] Referring to Figure 23 It should be noted that the interconnected bases 2131 of the second elastic modules 2130 can actually form an interconnected elastic net (such as the part enclosed by the dashed line 2150) extending in the X-Y plane. The interconnected elastic net 2150 is used to interconnect or link the second elastic modules 2130 of the elastic assemblies 2110 in the main elastic layer 2100, so as to transfer pressure and / or elastic deformation between the interconnected second elastic modules 2130, thereby forming the aforementioned mutual drawing. In this way, when the elastic assembly 2110a is compressed to a certain extent such that the second elastic module 2130a thereof begins to elastically deform, pressure can be transferred to the adjacent other elastic assemblies 2110 (especially the adjacent elastic assembly) via the interconnected elastic net 2150, so that the other elastic assemblies 2110 (especially the second elastic modules 2130) can work together to bear the pressure. In the present embodiment, since the base 2131 is located at the upper end of the second elastic module 2130 or the helical spring 2133, the base 2131 is located between the upper end and the lower end of the assembled elastic assembly 2110, which also causes the interconnected elastic net 2150 to be located between the upper surface and the lower surface of the entire main elastic layer 2100. In other embodiments, only a portion of the bases 2131 of the second elastic modules 2130 in the main elastic layer 2100 can be interconnected, and the interconnected elastic net 2150 formed thereby can only transfer pressure / or elastic deformation between the interconnected second elastic modules 2130, thereby contributing different elastic properties to the main elastic layer 2100.

[0099] Based on the first to third compression processes, the main elastic layer 2100 and the elastic pad 2000 having it have the following elastic characteristics: 1) They exhibit obvious three-stage elastic characteristics from "soft" to "hard" to "harder", which is different from the two-stage elastic characteristics of the elastic pad 1000; and 2) They exhibit obvious independent elastic pad characteristics in both the first and second stages, that is, the compression states of different regions of the elastic pad 2000 are independent and do not affect each other.

[0100] In the preceding description, the base 2131 is lower than the upper end of the second elastic module 2130 and is located between the upper and lower ends of the second elastic module 2130. In another embodiment not shown, the base 2131 may be positioned higher than the upper end of the coil spring 2133, or higher than the seat ring 2139. That is, the base 2131 forms the upper end of the entire second elastic module 2130 and is located between the upper and lower ends of the entire elastic component 2100. Thus, after only the first elastic module 2120 is compressed, and before the first and second elastic modules 2120 and 2130 are compressed simultaneously, the interconnected elastic network 2150 formed by the interconnected bases 2131 will participate, involving other adjacent elastic components 2110 to resist the pressure F together. That is, the interconnected elastic network 2150 will be more effective than the first elastic module 2120. Figure 23 The situation shown engages earlier, thus the elastic pad and main elastic layer exhibit different elastic characteristics than in the second embodiment.

[0101] In yet another embodiment (not shown), the position of the base 2131 within the second elastic module 2130 can be further lowered, such that the base 2131 is located at the lower end of the second elastic module 2130, and thus also at the lower end of the entire elastic component 2110. In this way, the interconnected structure formed by the interconnected bases 2131 will not participate in any compression process, thereby causing the elastic pad and main elastic layer to exhibit elastic characteristics different from those in the second embodiment.

[0102] Third embodiment:

[0103] Figure 24 and Figure 25 An assembled elastic pad 3000 according to a third embodiment of the present invention is shown. Figure 24 and Figure 25As shown, the elastic pad 3000 is essentially a flat shape extending in the XY plane and has a height or thickness extending along the Z direction. The elastic pad 3000 may include a main elastic layer 3100 and a first pad layer 3200 covering the main elastic layer. The main elastic layer 3100 may be made of an elastic material and provides the primary source of elasticity for the elastic pad 3000. The first pad layer 3200 may be located above the main elastic layer 3100 and is closer to the human body during use than the main elastic layer 3100. The first pad layer 3200 typically has a substantially continuous and flat surface to provide a more human-friendly surface for the elastic pad 3000. The first pad layer 3200 may also have a degree of elasticity to provide a secondary source of elasticity for the elastic pad 3000.

[0104] It should be noted that although the first pad 3200 is generally flat, this does not preclude the possibility that the upper surface of the first pad 3200 may have concave and / or convex structures 3220 that do not affect the comfort of human contact, and such structures are preferably elastic.

[0105] The main elastic layer 3100 may include a plurality of elastic components 3110 arranged in an array along the XY plane. The structure of the elastic pad 3000 and the elastic components 3110 is as follows: Figure 26 The exploded view shows it more clearly. For example... Figure 26 As shown, each elastic component 3110 in the main elastic layer 3100 may include a first elastic module 3120 and a second elastic module 3130 extending along the height direction Z and capable of elastic deformation along the height direction Z. The first elastic module 3120 can be inserted downward along the height direction Z into the corresponding second elastic module 3130 and held therein. That is, the second elastic module 3130 can be both an elastic module and a holding module for holding the first elastic module 3120. In the assembled state where the first elastic module 3120 is inserted into the second elastic module 3130, along the height direction Z, the upper end of the first elastic module 3120 extends into the receiving space 3135 of the second elastic module 3130 (see...). Figure 27 In addition to the above, the upper end of the first elastic module 3120 is higher than the second elastic module 3130. Simultaneously, in the lateral direction perpendicular to the height direction Z, the second elastic module 3130 can circumferentially surround and hold the first elastic module 3120. Thus, when the elastic pad 3000, particularly its main elastic layer 3100, experiences downward pressure, the first elastic module 3120 directly receives the pressure, while the second elastic module 3130 indirectly receives the downward pressure transmitted by the first elastic module 3120.

[0106] It is noted that in this assembled state, the first elastic modules 3120 of the individual elastic assemblies 3110 are independent of each other, while the second elastic modules 3130 of adjacent elastic assemblies 3110 are connected to each other.

[0107] The first elastic modules 3120 of the individual elastic assemblies 3110 in the elastic pad 3000 can have a similar shape and structure as the first elastic modules 1120 in the elastic pad 1000 of the first embodiment or the first elastic modules 2120 in the elastic pad 2000 of the second embodiment, as shown in Figure 13 The assembly process of the elastic pad 3000 is also similar to the elastic pads 1000 and 2000 of the first and second embodiments. The main difference between the elastic pad 3000 and the elastic pads 1000 and 2000 is the structure of the second elastic modules 3130, and otherwise the previous descriptions of the elastic pads 1000 and 2000 are substantially applicable to the elastic pad 3000.

[0108] Figure 27 and Figure 28 A second elastic module 3130 applicable to the elastic assemblies 3110 is schematically shown. As shown in Figure 27 and Figure 28 The second elastic module 3130 can include a helical spring 3133 that is elastically deformable. The helical spring 3133 can serve as the elastic body of the second elastic module 3130 and is hollow. In the height direction Z, the helical spring 3133 can be mounted and constrained between a mounting cylinder 3132 and a flat base 3131. The base 3131 can be located at the lower end of the elastic assembly 3110. The mounting cylinder 3132 can be made of a non-elastic material that is not easily deformed and can have a flange 3139 extending laterally outward at its upper end. In this way, the helical spring 3133 can abut the lower surface of the flange 3139 of the mounting cylinder 3132 at the upper end to support the mounting cylinder, and can abut the base 3132 at the lower end. The mounting cylinder 3132 extends downward from its flange 3139 inside the helical spring 3133, so as to extend substantially inside the helical spring 3133. The downward or upward movement of the mounting cylinder 3132 can correspondingly compress or release the helical spring 3133. In other embodiments, the mounting cylinder 3132 can also be connected to the upper end of the helical spring 3133 in other suitable ways.

[0109] To securely hold the helical spring 3133, the base 3131 may have an annular groove 3131a, allowing the lower end of the helical spring 3133 to be detachably fitted into the annular groove 3131a. On the outside of the helical spring 3133, a plurality of flexible straps 3134 extend between the mounting cylinder 3132 and the base 3131. Thus, by pre-determining the length of the flexible straps 3134, the distance between the mounting cylinder 3132 and the base 3131 can be limited, allowing the helical spring 3134 to be constrained between the mounting cylinder 3132 and the base 3131 in a pre-compressed state (not a completely free state). With the aid of the pre-compressed helical spring 3134, the resulting second elastic module 3130 can undergo elastic deformation while also possessing a certain stiffness. This stiffness of the second elastic module 3130 helps maintain its shape in a static state and provides suitable initial stiffness or initial support force when it is compressed and deformed. The flexible strap 3134 and the mounting cylinder 3132 can be made of the same material and are integrally formed.

[0110] The base 3131 of the second elastic module 3130 may have a connecting portion 3136 for interconnecting with the base 3131 of the second elastic module 3130 of other adjacent elastic components 3110 during assembly, to form, for example... Figure 30 The elastic base layer 3140 shown is described in the first embodiment. A description of this elastic base layer 3140 can be found in the reference section of the first embodiment. Figure 4 The description of the elastic base layer 1140 will not be repeated here. Similar to the first embodiment, for ease of assembly, the bases 2131 of several second elastic modules 2130 can be integrally formed to create a module containing multiple second elastic modules. Figure 27 As shown, these connecting parts 3136 may include "slide rail-groove" type connecting parts 3136c and 3136d. The slide rail 3136c can be inserted into the groove 3136d of the base 2131 of another adjacent second elastic module 3130, and the groove 3136d can receive the slide rail 3136c of the base 3131 of the other second elastic module 3130.

[0111] like Figure 27As shown, the coil spring 3133 of the second elastic module 3130 can be tapered or frustoconical tapering from the upper end to the lower end in the vertical or height direction Z, and in the assembled state, the tapered or frustoconical shape can be upright, which is different from the inverted tapered or frustoconical coil springs 1133 and 2133 in the first and second embodiments. In this case, the required receiving space 3135 to receive the inverted tapered or frustoconical first elastic module 3120 can be provided by the mounting cylinder 3132. The mounting cylinder 3132 can be hollow, and its upper end can have an opening 3137U, so that the mounting space 3135 of the mounting cylinder 3132 is open upward. In this way, it allows the first elastic module 3120 to be inserted from the upper end to the lower end into the receiving space 3135 of the second elastic module 3130, so that the first elastic module 3120 can be held by the second elastic module 3130, forming the assembled elastic assembly 3110. The receiving space 3135 defined by the inner side of the hollow mounting cylinder 3132 can also be an inverted tapered or frustoconical shape tapering from the upper end to the lower end in the assembled state, so it can be substantially conical with the inverted tapered or frustoconical first elastic module 3120 in the assembled state, so that the second elastic module 3130 holds the first elastic module 3120 more stably. The mounting cylinder 3132 can stably hold the first elastic module 3120 only by this surface fit between it and the first elastic module 3130, without other connection and fixing operations.

[0112] As can be seen, this conical fit between the first elastic module 3120 and the receiving space 3135 of the second elastic module 3130 is particularly convenient for assembling and disassembling the elastic assembly 2110, which can be referred to the relevant description of the elastic assembly 1110 of the first embodiment above, and will not be repeated here. In other embodiments, other shapes of surface fit between the first elastic module 3120 and the receiving space 3135 of the second elastic module 3130 for convenient assembly and disassembly are also possible.

[0113] The second elastic module 3130 as a whole presents a generally M-shaped cross-sectional shape. The outer profile of the coil spring 3122 of the second elastic module 3130 is substantially upright tapered or frustoconical, and the inner profile of the mounting cylinder 3132 is inverted tapered or frustoconical, which is different from the first and second embodiments. Figure 27is more clearly seen in the cross-sectional view. In addition, the base 3131 of the second elastic module 3130 can have an opening 3131b, and the size of the opening 3131b can be greater than the size of the upper end of the second elastic module 3130, for example, greater than the diameter of the annular flange 3139. Since the second elastic module 3130 has a hollow M-shaped shape, and the base 3131 at the lower end thereof has the opening 3131b, this allows another second elastic module 3130 to be inserted into the current second elastic module 3130 via the opening 3131b, so that a plurality of second elastic modules 3130 can be nested together in the non-assembled state, as shown in Figure 29 which facilitates the storage and transportation of the second elastic module 3130 in a compact volume in the non-assembled state.

[0114] Referring to Figure 28 , the dashed line D in the figure represents the plane on which the bottom surface of the second elastic module 3130 is located, which is at the lowest position of the second elastic module 3130. It can be understood that the plane shown by the dashed line D is also the plane on which the bottom surface of the elastic assembly 3110 and the bottom surface of the main elastic layer 3100 are seated, as shown in Figure 25 and 37 . Returning to Figure 28 , it can be seen that the vertical position of the lower end of the mounting cylinder 3132 can be significantly higher than the bottom surface of the second elastic module 3130. In this way, when the mounting cylinder 3132 is subjected to downward pressure, it can be moved downward by compressing the coil spring 3133. The mounting cylinder 3132 can also have an opening 3137L at the lower end thereof. In this way, as shown in Figure 31 , when the first elastic module 3120 is inserted into the second elastic module 3130 to form the elastic assembly 3110, the lower end of the first elastic module 3120 will first pass through the upper opening 3137U of the mounting cylinder 3132, and then pass through the lower opening 3137L of the mounting cylinder 3132, until the first elastic module 3120 is stably held by the mounting cylinder 3132. By pre-determining the taper of the first elastic module 3120 and the mounting cylinder 3132 and the length of the first elastic module 3120, the lower end of the first elastic module 3120 can be made to be above the bottom surface of the second elastic module 3130 or the elastic assembly 3110, or suspended above the bottom surface, in the assembled state.

[0115] In this way, referring to Figure 31When the elastic assembly 3110 is subjected to a downward pressure F, the pressure F is first received directly by the first elastic module 3120, which is compressed significantly downward. During the compression of the first elastic module 3120, the pressure is quickly transmitted to the tapered side of the mounting cylinder 3132 of the second elastic module 3130 due to the contact between the first elastic module 3120 and the mounting cylinder 3132. Since the lower end of the mounting cylinder 3132 and the first elastic module 3120 is suspended, the pressure on the tapered side of the mounting cylinder 3132 is concentrated on the flange 3139 of the mounting cylinder 3132 to act on the upper end of the coil spring 3133, so that the second elastic module 3130 is also subjected to a significant downward pressure and works together with the first elastic module 3120 to resist the pressure F. In other words, for the elastic assembly 3110 of the present embodiment, the first elastic module 3120 and the second elastic module 3130 work together to resist the pressure F from the beginning. This is different from the elastic assemblies 1110 and 2110 of the first and second embodiments, in which the first elastic modules 1120 and 2120 mainly resist the pressure F during the first compression process, and the second elastic modules 1130 and 2130 do not significantly participate.

[0116] Since the coil spring 3133 of the second elastic module 3130 is a positive tapered or truncated cone, and the coil spring (not labeled in the figure) of the first elastic module 3130 is an inverted tapered or truncated cone, and works together when the elastic assembly 3110 is subjected to a downward pressure F, the overall elastic performance of the elastic assembly 3110 is similar to that of a spiral spring with a concave shape as shown in Figure 32 Compared to the first and second embodiments in which the first elastic modules 1120 and 2120 mainly work during the first compression process, the elastic assembly 3110 of the present embodiment exhibits a more "soft" elastic characteristic at the beginning. Figure 13

[0117] In addition, in the third embodiment, the base 3131 of the second elastic module 3130 is located at the bottom surface (dashed line D) of the entire elastic assembly 3110. Therefore, the connection point adjacent to the second elastic module 3130 is also at the bottom surface of the elastic assembly 3110. In this way, other elastic assemblies 3110 are not involved during the entire compression process of the elastic assembly 3110, thereby exhibiting a better independent spring pad elastic characteristic compared to the elastic assemblies 1110 and 2110 of the first and second embodiments.

[0118] ​In comparison with the integrated concave coil spring, the elastic assembly 3110 can be composed of two independent conical coil springs of the first and second elastic modules 3120 and 3130. In this way, more various elastic properties can be combined by adjusting the elastic characteristics of the two coil springs respectively. Moreover, the first and second elastic modules 3120 and 3130 each having a conical shape facilitates the respective storage by stacking. Finally, the assembly of the first and second elastic modules 3120 and 3130 is simple, only requiring the first elastic module 3120 to be inserted from above into the second elastic module 3130.

[0119] Other embodiments:

[0120] Figure 33 An elastic assembly 4110 of another embodiment is schematically shown. As Figure 33 shown, similar to the elastic assemblies 1110, 2110 and 3110 in the first to third embodiments, the elastic assembly 4110 can include a first elastic module 4120 and a second elastic module 4130 capable of elastically deforming along a height direction Z of the elastic pad. Along the height direction Z, the upper end of the first elastic module can be higher than the second elastic module. Meanwhile, in a lateral direction perpendicular to the height direction Z, the second elastic module 4130 can surround the first elastic module 4130 in its circumferential direction outside the first elastic module 4120. That is, the tall first elastic module 4120 is the inner elastic module, and the short second elastic module 4130 is the outer elastic module.

[0121] Unlike the elastic assemblies 1110, 2110 and 3110 in the first to third embodiments, the first and second elastic modules 4130 and 4130 of the elastic assembly 4110 can not have a cooperative relationship of one holding the other. In this way, when the elastic assembly 4110 is subjected to a downward pressure, the first elastic module 4120 first directly receives the pressure, but the first elastic module 4120 does not significantly transfer the pressure to the second elastic module 4130. Therefore, in a first compression process, the first elastic module 4120 is significantly compressed downward, and the second elastic module 4130 is not compressed downward. In other words, in the first compression process, the deformation of the elastic assembly 4110 along the height direction Z is provided entirely by the deformation of the first elastic module. Until the first elastic module 4120 is significantly compressed by a distance, for example, its upper end is substantially flush with the upper end of the second elastic module 4130, a second compression process will begin. In the second compression process, the second elastic module 4130 can directly receive the pressure together with the first elastic module 4120 and be compressed downward synchronously. In other words, in the second compression process, the deformation of the elastic assembly 4110 along the height direction Z is provided jointly by the deformations of the first and second elastic modules 4120 and 4130.

[0122] It is noted that, compared to the first compression process in which only the first elastic module 4120 resists the pressure, in the second compression process, both the first and second elastic modules 4120 and 4130 resist the pressure. Therefore, the elastic assembly 4110 as a whole exhibits a greater elastic coefficient in the second compression process than in the first compression process, and one will feel that the elastic assembly 4110 and the elastic pad composed thereof exhibits a greater "hardness" in the second compression process. In this way, the elastic assembly 4110 can also provide a two-stage elastic characteristic from "soft" to "hard".

[0123] Figure 34 The elastic assembly 5110 of another embodiment is schematically shown. The difference from the elastic assembly 4110 is that, in the elastic assembly 5110, the high first elastic module 5120 is the outer elastic module, and the low second elastic module 5130 is the inner elastic module. The compression process and elastic characteristic of the elastic assembly 5110 are similar to those of the elastic assembly 4110.

[0124] Figure 33 And Figure 34 The elastic modules of the elastic assemblies 4110 and 5110 shown can be isometric helical springs along the height direction Z, or can also be cloth bag spring packages in which flexible material is wrapped outside the helical springs. When assembled, the outer elastic modules 4130 and 5120 can be sleeved outside the inner elastic modules 4120 and 5130. Although not shown, the elastic assemblies 4110 and 5110 can also have bases to connect adjacent elastic assemblies to each other when assembling the main elastic layer of the elastic pad. A plurality of elastic assemblies 4110 and 5110 arranged in an array along the X-Y plane can constitute the main elastic layer of the elastic pad. A first pad layer such as the first to third embodiments can be laid on top of the main elastic layer, and then the required elastic pad can be assembled.

[0125] In the elastic assemblies of the first to third embodiments, the first elastic module is overall tapered or truncated-cone-shaped, and the accommodation space of the second elastic module for holding the first elastic module is also overall tapered or truncated-cone-shaped. In other embodiments, the accommodation space and the first elastic module can not be tapered as a whole, but can have tapered portions respectively. The tapered portion of the accommodation space of the second elastic module holds the corresponding tapered portion of the first elastic module, and is substantially formed as a tapered surface fit. The formation of tapered portions only in a local manner can be disadvantageous for the compact storage and transportation of the first and second elastic modules in a telescopic manner, but is still feasible when manufacturing and selling integrated elastic pads.

[0126] In one embodiment, the elastic assembly can include a first elastic module extending in the height direction of the elastic pad and a holding module for holding the first elastic module. The holding module can be formed with an upwardly open receiving space to allow the first elastic module to be inserted into the receiving space from above and thereby held thereby. In a state where the first elastic module has been inserted into and held by the receiving space of the holding module, the upper end of the first elastic module can extend out of the receiving space upwardly and above the holding module so that the first elastic module first receives a downward pressure when the elastic assembly is subjected to the pressure. The first elastic module can be selected from one of the first elastic modules described in the above embodiments. The holding module can be elastic and can be selected from one of the second elastic modules described in the above embodiments that are elastically deformable in the height direction of the elastic pad, so that the elastic assembly thus formed is as described in the first to third embodiments.

[0127] The holding module can also be non-elastic. For example, the holding module can have the features of the holding function of the second elastic module (e.g., the receiving space, etc.) while omitting the elastic features (e.g., the coil spring, etc.) of the second elastic module. In some embodiments, the holding module can be in the form of a holding seat formed of a material that is not easily deformed and have a receiving space for holding the first elastic module as described above. Such a holding module is a substantially rigid module that does not substantially deform in the height direction Z. It is to be understood that an elastic assembly constructed with such a holding module also has the advantage of easy assembly and disassembly as described in the first and third embodiments, i.e., the assembly and disassembly of the elastic assembly can be achieved with a simple single insertion or pulling out action.

[0128] With reference to the elastic assembly 3110 shown in Figure 31 For the elastic assembly 3110 to be described as an example, in order for the holding module (here, the second elastic module 3130) to stably hold the first elastic module 3120, the height H1 of the portion of the first elastic module 3120 above the upper end of the holding module 3130 in the assembled state is preferably not more than 80% of the total height H2 of the first elastic module 3120. Typically, H1 can be between 30% and 70% of H2. This also applies to the elastic assemblies in the first and second embodiments and to elastic assemblies including other types of holding modules.

[0129] In one embodiment, the elastic pad can include a main elastic layer that can include a plurality of elastic assemblies and an interconnecting elastic net. Each elastic assembly can include first and second elastic modules. The elastic pad can be the elastic pads 1000, 2000 of the first and second embodiments, in which the interconnecting elastic net can be formed by the mutually connected bases 1131, 2131 as shown in Figure 16 and27 The interconnecting elastic net 1150, 2150 shown in FIG. 11B, 21B. In other embodiments, the interconnecting elastic net can be other structures independent of the base. For example, the base 2131 and the flexible member 2138 in the second elastic module 2130 shown in FIG. 21B can be omitted, and the adjacent race 2139 of the second elastic module is connected to each other by a connecting member when assembled, thereby forming the interconnecting elastic net. For another example, for the elastic assembly 4110 shown in FIG. 41B, when a plurality of such elastic assemblies 4110 are densely arranged in an array, a main elastic layer 4100 can be formed, as shown in FIG. 41C. It is to be understood that, for the sake of clarity of illustration, Figure 20 The base 2131 and the flexible member 2138 in the second elastic module 2130 shown in FIG. 21B can be omitted, and the adjacent race 2139 of the second elastic module is connected to each other by a connecting member when assembled, thereby forming the interconnecting elastic net. For another example, for the elastic assembly 4110 shown in FIG. 41B, when a plurality of such elastic assemblies 4110 are densely arranged in an array, a main elastic layer 4100 can be formed, as shown in FIG. 41C. It is to be understood that, for the sake of clarity of illustration, Figure 33 The base 2131 and the flexible member 2138 in the second elastic module 2130 shown in FIG. 21B can be omitted, and the adjacent race 2139 of the second elastic module is connected to each other by a connecting member when assembled, thereby forming the interconnecting elastic net. For another example, for the elastic assembly 4110 shown in FIG. 41B, when a plurality of such elastic assemblies 4110 are densely arranged in an array, a main elastic layer 4100 can be formed, as shown in FIG. 41C. It is to be understood that, for the sake of clarity of illustration, Figure 35 The base 2131 and the flexible member 2138 in the second elastic module 2130 shown in FIG. 21B can be omitted, and the adjacent race 2139 of the second elastic module is connected to each other by a connecting member when assembled, thereby forming the interconnecting elastic net. For another example, for the elastic assembly 4110 shown in FIG. 41B, when a plurality of such elastic assemblies 4110 are densely arranged in an array, a main elastic layer 4100 can be formed, as shown in FIG. 41C. It is to be understood that, for the sake of clarity of illustration, Figure 35 The base 2131 and the flexible member 2138 in the second elastic module 2130 shown in FIG. 21B can be omitted, and the adjacent race 2139 of the second elastic module is connected to each other by a connecting member when assembled, thereby forming the interconnecting elastic net. For another example, for the elastic assembly 4110 shown in FIG. 41B, when a plurality of such elastic assemblies 4110 are densely arranged in an array, a main elastic layer 4100 can be formed, as shown in FIG. 41C. It is to be understood that, for the sake of clarity of illustration,

[0130] In one embodiment, an elastic pad can include a flat base layer and a plurality of first elastic modules in an extension plane thereof. The base layer can have an upper surface and a lower surface opposite to the upper surface. The base layer can have a plurality of retaining pits distributed in an array at the upper surface thereof, each retaining pit being recessed downward from the upper surface of the base layer. Each first elastic module can extend in a height direction of the elastic pad and be elastically deformable in the height direction. A lower end of each first elastic module can be inserted into one pit of the base layer so as to be retained by the base layer. An upper end of each first elastic module can extend upward and beyond the upper surface of the base layer. The base layer can be elastic in the height direction Z, such as the elastic base layers 1140, 2140, 3140 in the first to third embodiments. Such an elastic base layer is formed by a plurality of second elastic modules 1130, 2130, 3130 extending in the height direction Z and coupled to each other in the extension plane X-Y, and the accommodating spaces therein form the retaining pits in the embodiment. For example, see Figure 4The accommodating space 1135 of the second elastic module 1130 is also the holding recess 1143 of the elastic base layer 1140. The specific structure of the second elastic module can be referred to the description thereof above, which will not be repeated here. It should be understood that the second elastic body of the second elastic module 1130, 2130, 3130 constituting the elastic base layer 1140, 2140, 3140 can be a helical spring 1133, 2133, 3133 extending in the height direction, which makes the elastic base layer 1140, 2140, 3140 actually a spring net with a certain thickness. In other embodiments, the base layer can adopt other suitable forms of spring net.

[0131] In another embodiment, the base layer can also be integrally formed by other elastic materials, such as sponge, silica gel, rubber, etc., as shown in Figures 36-39 . Figure 36 The base layer 6140 is shown in FIG. 6B, which has a flat main body 6144 made of elastic material such as sponge, an upper surface 6141, and a lower surface 6142 opposite to the upper surface 6141. The base layer 6140 can also have a plurality of holding recesses 6143 arranged in an array on the upper surface 6141 thereof, each holding recess 6143 being recessed from the upper surface 6141 of the base layer 6140 towards the inside of the main body 6144, i.e. downwardly towards the lower surface 6142. The holding recess 6143 can have an inverted conical or truncated conical shape, i.e. its lateral dimension is tapered along the direction from the upper surface 6141 to the lower surface 6142, which can be more clearly seen in the cross-sectional view of Figure 37 . This conical or truncated conical shape of the holding recess 6143 is particularly suitable for holding the inverted conical or truncated conical first elastic module 6120, as shown in Figure 38 . Each first elastic module 6120 can extend in the height direction Z of the elastic pad and be elastically deformable in the height direction Z. Each first elastic module 6120 corresponds to a holding recess 6143, and the lower end of the first elastic module 6120 can be inserted into the corresponding holding recess 6143 in the base layer 6140 so as to be held by the base layer 6140. As shown in Figure 39As shown, with the first elastic module 6120 inserted into the retaining recess 6143, the upper end of the first elastic module 6120 can extend upwards beyond the retaining recess 6143, that is, extend beyond the upper surface 6143 of the base layer 6140. A first pad layer 6200 is laid on the array of first elastic modules 6120 to form an elastic pad 6000. The first elastic module 6120 can be similar to the first elastic modules in the foregoing embodiments, such as first elastic modules 1120, 2120, and 3120, which will not be described in detail here. In other embodiments, the base layer 6140 can also be inelastic, thus not contributing elasticity to the elastic pad 6000, but only serving to retain the first elastic module 6120. In this case, the main body 6144 of the base layer 6140 can be made of a suitable inelastic material.

[0132] like Figure 40 As shown, the elastic pads of the aforementioned embodiments, after being wrapped with an outer cover, are placed on a supporting bed frame to form a bed. In other embodiments, the elastic pads of the aforementioned embodiments can also be placed directly on the ground for use as a bed, depending on the circumstances. In other embodiments, the elastic pads of the aforementioned embodiments can be arranged on a sofa frame to form the desired sofa.

[0133] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An elastic pad having an extending plane and a height direction perpendicular to said extending plane, comprising: The flat base layer within the extended plane has: an upper surface and a lower surface opposite to the upper surface; The base layer comprises: a plurality of retaining recesses arranged in an array on the upper surface, each of the retaining recesses being recessed downward from the upper surface of the base layer; and a plurality of first elastic modules extending along the height direction of the elastic pad and capable of elastic deformation along the height direction; wherein the lower end of each first elastic module is inserted into the retaining recess for being held by the base layer; and the upper end of each first elastic module extends upward beyond the upper surface of the base layer. The base layer is elastic along the height direction; The base layer is made of an elastic material; the elastic material is sponge, silicone, or rubber. The elastic body of the base layer is a plurality of springs, and thus the base layer is a spring mesh composed of the plurality of springs; The base layer is formed by interconnecting multiple second elastic modules extending in the height direction within the extension plane; The second elastic module includes a second elastic body, which is hollow and has an upward-opening receiving space. The accommodating space forms the retaining recess of the base layer.

2. The elastic pad according to claim 1, characterized in that, The second elastic body is an inverted cone or truncated cone shape; the second elastic body is a helical spring that is inverted cone or truncated cone shape as a whole.

3. The elastic pad according to claim 1, characterized in that, The second elastic module includes a hollow second elastic body and a hollow mounting cylinder supported by the second elastic body, the inner side of the mounting cylinder defining the retaining recess.

4. The elastic pad according to claim 3, characterized in that, The second elastic body is conical or truncated conical in shape, and along the height direction, the lateral dimension of the second elastic body gradually increases from the upper end to the lower end.

5. The elastic pad according to any one of claims 3-4, characterized in that, The mounting cylinder is an inverted cone or truncated cone shape, and its lateral dimension gradually decreases from the upper end to the lower end along the height direction.

6. The elastic pad according to any one of claims 1-5, characterized in that, The second elastic module includes a connecting portion for interconnecting the current second elastic module with other adjacent second elastic modules in the elastic pad.

7. The elastic pad according to claim 6, characterized in that, The second elastic module further includes a flat base, which is connected to and surrounds the second elastic body; The connecting portion is formed at the base.

8. The elastic pad according to any one of claims 1-7, characterized in that, The recess is kept in an inverted cone or truncated cone shape.

9. The elastic pad according to any one of claims 1-8, characterized in that, Along the height direction, the lateral dimension of the first elastic module gradually decreases from the upper end to the lower end; the first elastic module is formed as an inverted cone or a truncated cone.

10. The elastic pad according to claim 9, characterized in that, The first elastic module includes a first elastic body; the first elastic body is a helical spring that is inverted and has a cone or truncated cone shape.

11. The elastic pad according to claim 10, characterized in that, The first elastic module is hollow and its upper end is open to allow multiple first elastic modules to be stored in a stacked manner in an unassembled state.

12. The elastic pad according to claim 10, characterized in that, The first elastic module further includes a pre-compression structure for pre-compressing the first elastic body; the pre-compression structure includes: a flexible sleeve that wraps around the first elastic body, the first elastic body being compressed within the flexible sleeve; or, a constraint band extending between the upper and lower ends of the first elastic body, so as to compress the first elastic body by constraining the distance between the upper and lower ends of the first elastic body.

13. The elastic pad according to any one of claims 1-12, characterized in that, It also includes a first pad layer located on top of the plurality of first elastic modules.

14. A piece of furniture comprising an elastic pad as claimed in any one of claims 1-13.

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