Elastic filling block and mattress

Abstract

The utility model provides an elastic filling block which can be stretched in a first direction, and comprises a first surface and a second surface which are opposite to each other; each concave groove group comprises a plurality of first concave grooves which are distributed along a first axis and penetrate through the first surface and the second surface, each first concave groove is independent from the adjacent first concave groove, and the first axis is parallel to the second direction of the elastic filling block; the second concave grooves are distributed along a second axis and penetrate through the first surface and the second surface, each second concave groove is independent from the adjacent second concave groove, and the second axis is parallel to the second direction; wherein each first concave groove is arranged towards the second axis, and each second concave groove is arranged towards the first axis. The volume of raw materials of the filling cotton of the mattress is reduced, the weight of the mattress is reduced, holes do not need to be dug in the filling cotton, less waste materials are generated, and materials are saved. The utility model further discloses a mattress.

Description

[0001] This application claims priority to Chinese Patent Application No. 2025211229855, filed on June 3, 2025, entitled "Elastic Filling Block and Mattress", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of mattress technology, and in particular to an elastic filling block and a mattress. Background Technology

[0003] With advancements in materials science and technology, various types of mattresses are now widely used. There are now mattresses not only for indoor use but also for outdoor use (such as camping). To improve the support, comfort, and warmth of mattresses, elastic insulating materials, such as foam, are added as filling.

[0004] Currently, mattresses often require cutting filling material to a size similar to the mattress cover before inserting it into the cover. While this method provides relatively stable support and good insulation, the large amount of filling material significantly increases the mattress's weight. To reduce weight, a technique has emerged where some of the cut filling material is removed to create a hollow structure before manufacturing the mattress. However, the removed filling material is difficult to utilize efficiently, resulting in a significant waste of insulation material. Utility Model Content

[0005] To address the aforementioned problems, according to one aspect of this application, an elastic filler block is provided, which is stretchable in a first direction, comprising:

[0006] The first and second sides facing away from each other; and

[0007] At least one set of concave grooves, each set of concave grooves comprising:

[0008] Multiple first concave grooves are distributed along a first axis and penetrate the first surface and the second surface, each first concave groove and its adjacent first concave grooves are independent, wherein the first axis is parallel to a second direction of the elastic filler block; and

[0009] Multiple second concave grooves are distributed along a second axis and penetrate the first surface and the second surface. Each second concave groove and its adjacent second concave groove are independent, wherein the second axis is parallel to the second direction of the elastic filler block.

[0010] Each of the first concave grooves is oriented toward the second axis, and each of the second concave grooves is oriented toward the first axis.

[0011] Preferably, each first concave groove is interlocked with two second concave grooves, and each second concave groove is interlocked with two first concave grooves.

[0012] Preferably, each of the first concave grooves includes a first segment, a second segment, and a third segment connecting the first segment and the second segment, and the projections of the first segment and the second segment onto the second surface are line segments; each of the second concave grooves includes a first segment, a second segment, and a third segment connecting the first segment and the second segment, and the projections of the first segment and the second segment onto the second surface are line segments; the distance between any two adjacent first concave grooves is greater than the distance between the projection of the first segment of each first concave groove onto the second surface and the projection of the nearest second concave groove onto the second surface in the direction of its extension; and the distance between any two adjacent second concave grooves is greater than the distance between the projection of the first segment of each second concave groove onto the second surface and the projection of the nearest first concave groove onto the second surface in the direction of its extension.

[0013] Preferably, the elastic filler block further includes a central groove, the central groove comprising:

[0014] The main groove extends between the first axis and the second axis in a direction parallel to the first axis;

[0015] A first auxiliary groove is disposed at the first end of the main groove; and

[0016] The second auxiliary groove is located at the second end of the main groove;

[0017] The main slot is defined between the first secondary slot and the second secondary slot.

[0018] Preferably, the first sub-groove and the second sub-groove extend in a direction perpendicular to the main groove.

[0019] Preferably, the angle between the extending directions of the first and second auxiliary grooves and the extending direction of the main groove is an acute or obtuse angle.

[0020] Preferably, the first sub-slot and the second sub-slot are symmetrical with respect to the main slot.

[0021] Preferably, each of the first concave grooves is opposite to a second concave groove; the first sub-groove extends between a set of opposing first and second concave grooves; and the second sub-groove extends between an adjacent set of opposing first and second concave grooves.

[0022] Preferably, each of the first concave grooves includes a first segment, a second segment, and a third segment, wherein the third segment connects the first segment and the second segment; each of the second concave grooves includes a first segment, a second segment, and a third segment, wherein the third segment connects the first segment and the second segment.

[0023] Preferably, the projection of the third segment onto the second surface is a broken line.

[0024] Preferably, the first segment of the first concave groove and the second segment of the first concave groove are perpendicular to the first axis.

[0025] Preferably, the first segment of the second concave groove and the second segment of the second concave groove are perpendicular to the second axis.

[0026] Preferably, the first concave groove and the second concave groove have the same shape;

[0027] Define the distance between the first segment of the first concave groove and the second segment of the second concave groove as the first distance, and define the distance between two adjacent first concave grooves as the second distance, then:

[0028] The second segment of the second concave groove lies between the first segment of the first concave groove and the second segment of the first concave groove; and

[0029] The ratio of the first distance to the second distance is in the range of 0.8-1.8.

[0030] Preferably, the ratio of the first distance to the second distance is in the range of 1.0-1.5.

[0031] Preferably, the ratio of the first distance to the second distance is in the range of 1.1-1.3.

[0032] Preferably, the first distance is in the range of 8-15mm, and the second distance is in the range of 7-12mm.

[0033] Preferably, the length of the first segment of the first concave groove is defined as the first length;

[0034] The third distance is defined as the distance between the first segment of the first concave groove and the third segment of the second concave groove along the extending direction of the first segment of the first concave groove; wherein:

[0035] The second segment of the second concave groove lies between the first segment of the first concave groove and the second segment of the first concave groove; and

[0036] The ratio of the first length to the third distance ranges from 1.5 to 3.0.

[0037] Preferably, the ratio of the first length to the third distance is in the range of 1.8-2.5.

[0038] Preferably, the ratio of the first length to the third distance is in the range of 2.0-2.2.

[0039] Preferably, the first length ranges from 6 to 14 mm, and the third distance ranges from 3 to 7 mm.

[0040] Preferably, each of the first concave grooves has a first shape, and each of the second concave grooves has a second shape; the first shape and the second shape may be the same or different.

[0041] Preferably, the elastic filling block includes a first set of concave grooves and a second set of concave grooves;

[0042] The first concave groove of the first concave groove group has a first shape, and the second concave groove of the first concave groove group has a second shape;

[0043] The first concave groove of the second concave groove group has a third shape, and the second concave groove of the second concave groove group has a fourth shape;

[0044] Wherein, the first shape and the third shape are the same or different, and the second shape and the fourth shape are the same or different.

[0045] This utility model also discloses a mattress based on the above-mentioned elastic filling block, including: an upper wall and a lower wall arranged opposite to each other; and the above-mentioned elastic filling block; wherein the elastic filling block is in a stretched state; and a first side of the elastic filling block is fixed to the upper wall, and a second side of the elastic filling block is fixed to the lower wall.

[0046] Preferably, the mattress further includes a sidewall, the upper end of which is connected to the periphery of the upper wall, and the lower end of which is connected to the periphery of the lower wall, and the elastic filling block is disposed in the space enclosed by the upper wall, the lower wall, and the sidewall.

[0047] Preferably, the mattress is air-filled.

[0048] Preferably, the mattress has an inflated state and an deflated state; wherein: when the mattress is in the inflated state, the length of the mattress is a first length; when the mattress is in the deflated state, the length of the mattress is a second length; and the ratio between the second length and the first length ranges from 30% to 60%.

[0049] Preferably, the mattress has an inflated state and an deflated state; wherein: when the mattress is in the inflated state, the width of the mattress is a first width; when the mattress is in the deflated state, the width of the mattress is a second width; and the ratio between the second width and the first width ranges from 70% to 90%.

[0050] Preferably, the mattress has an inflated state and an deflated state; when the mattress is in the inflated state, the length of the mattress is a first length and the width of the mattress is a first width; when the mattress is in the deflated state, the length of the mattress is a second length and the width of the mattress is a second width; and the ratio between the second length and the first length is in the range of 30% to 60%, and the ratio between the second width and the first width is in the range of 70% to 90%.

[0051] Preferably, when the mattress is in the inflated state, the length of the mattress is a first length and the width of the mattress is a first width; when the mattress is in the deflated state, the length of the mattress is a second length and the width of the mattress is a second width; the ratio of the first length to the first width is a first aspect ratio, and the ratio of the second length to the second width is a second aspect ratio; wherein, the first aspect ratio is greater than the second aspect ratio.

[0052] Preferably, the ratio between the first aspect ratio and the second aspect ratio is in the range of 1.2 to 2.5.

[0053] This utility model also discloses an inflatable mattress based on the above-mentioned elastic filling block, comprising:

[0054] An upper wall and a lower wall, which are arranged opposite to each other, define an inflation chamber; and the aforementioned elastic filling block is disposed in the inflation chamber; wherein, a first end of the elastic filling block is fixed to the upper wall, a second end of the elastic filling block is fixed to the lower wall, and the first end and the second end are distributed in a first direction of the elastic filling block.

[0055] Preferably, the inflatable mattress includes a plurality of the elastic filling blocks.

[0056] Preferably, the elastic filler block is C-shaped or Z-shaped.

[0057] This application features an elastic filling block that can be stretched along a first direction, allowing a larger volume of mattress to be filled with less filling material, thus reducing mattress weight and facilitating mattress handling and storage. Because there is no need to hollow out the filling material, this solution virtually eliminates waste of filling material. Attached Figure Description

[0058] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0059] Figure 1 This is a perspective view of the mattress in one embodiment;

[0060] Figure 2 yes Figure 1 The mattress shown is a cross-sectional view.

[0061] Figure 3 This is an exploded view of the mattress in one embodiment;

[0062] Figure 4 The stretching process of the elastic filler block in one embodiment is shown;

[0063] Figure 5 yes Figure 4 A magnified view of a portion of region A in the middle;

[0064] Figure 6a This illustrates the distribution of multiple elastic filler blocks in one embodiment;

[0065] Figure 6b The distribution of multiple elastic filler blocks is shown in another embodiment;

[0066] Figure 7 The structure of the elastic filler block in one embodiment is shown;

[0067] Figure 8 The structure of an elastic filler block in one embodiment is shown, wherein the elastic filler block is not stretched;

[0068] Figure 9 Show Figure 8 The structure of the elastic filler block after stretching is shown;

[0069] Figure 10 yes Figure 8 A magnified view of a portion of region B;

[0070] Figure 11 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0071] Figure 12 Show Figure 11 The structure of the elastic filler block after stretching is shown;

[0072] Figure 13 yes Figure 11 A magnified view of a portion of region C;

[0073] Figure 14 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0074] Figure 15 Show Figure 14 The structure of the elastic filler block after stretching is shown;

[0075] Figure 16 yes Figure 14 A magnified view of a portion of region D;

[0076] Figure 17 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0077] Figure 18 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0078] Figure 19 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0079] Figure 20 The structure of the elastic filler block is shown in another embodiment, wherein the elastic filler block is not stretched;

[0080] Figure 21 This is an exploded view of the mattress in another embodiment;

[0081] Figure 22 This is an exploded view of the mattress in another embodiment;

[0082] Figure 23 This is an exploded view of the mattress in another embodiment. Detailed Implementation

[0083] The present application will now be described in further detail with reference to the accompanying drawings.

[0084] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0085] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0088] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.

[0089] In the description of this application, the "inflatable" product (or "inflatable product") includes at least one inflation chamber. When the pressure of the gas (e.g., air) within the inflation chamber reaches a desired value, the inflatable product is inflated and maintains a certain shape. When the gas in the inflation chamber is expelled, the inflatable product is deflated, and its volume is significantly reduced compared to its inflated state, thus facilitating storage. Optionally, one or more tensioning members are provided within the inflation chamber of the inflatable product, with at least two ends connected to the wall of the inflation chamber. When tensioned, the tensioning members provide tensile force to limit deformation of the walls of the inflation chamber, allowing the inflatable product to maintain a certain shape after inflation.

[0090] Figure 1 This is a perspective view of a mattress 100. The mattress 100 includes an upper wall 101, a lower wall 102, and a side wall 103. The upper wall 101 and the lower wall 102 form the upper and lower surfaces of the mattress 100, respectively. The upper wall 101 and the lower wall 102 are spaced apart and opposite to each other along the thickness direction Z of the mattress 100. The side wall 103 is generally cylindrical, with its upper end connected to the periphery of the upper wall 101 and its lower end connected to the periphery of the lower wall 102. In this embodiment, the upper wall 101 and the lower wall 102 are connected to the side wall 103.

[0091] like Figure 1As shown, in this embodiment, the upper wall 101 and the lower wall 102 are both rectangular, and the side wall 103 surrounds the perimeter of the upper wall 101 and the lower wall 102, thereby forming a cuboid mattress 100.

[0092] refer to Figure 2 The upper wall 101, lower wall 102, and side wall 103 together form a chamber 104. An elastic filling block 200 is provided in the chamber 104. The upper surface of the elastic filling block 200 is connected to the upper wall 101, and the lower surface of the elastic filling block 200 is connected to the lower wall 102.

[0093] Before the elastic filling block 200 is connected to the upper wall 101 and the lower wall 102, the elastic filling block 200 can be stretched in the length direction X of the mattress 100 (that is, the first direction U of the elastic filling block 200), increasing the length while keeping the width basically unchanged.

[0094] In some embodiments, the mattress 100 is supported solely by the elastic filling block 200, which supports the upper wall 101 of the mattress 100 and the user. This design is simple, easy to manufacture, and easy to store. In other embodiments, the mattress 100 is inflatable, with the cavity 104 formed by the upper wall 101, lower wall 102, and side walls 103 being a closed inflatable cavity. The elastic filling block 200 and the air pressure within the inflatable cavity simultaneously support the upper wall 101 of the mattress 100 and the user, thereby providing the user with adequate and comfortable support.

[0095] The stretched elastic filler block 200 is placed between the upper wall 101 and the lower wall 102, and is connected to the upper wall 101 and the lower wall 102 respectively. In other words, the elastic filler block 200 located in the chamber 104 is constrained by the upper wall 101 and the lower wall 102 and kept in a stretched state.

[0096] The first surface 201 of the elastic filling block 200 is fixed to the upper wall 101 by heat pressing, and the second surface 202 of the elastic filling block 200 is fixed to the lower wall 102 by heat pressing. It can be understood that in other embodiments, the first surface 201 and the second surface 202 of the elastic filling block 200 may be connected to the upper wall 101 and the lower wall 102 of the mattress 100 by other means (e.g., but not limited to, bonding, sewing, high-frequency welding or other known means).

[0097] The elastic filler block 200 in this embodiment is made of sponge. Those skilled in the art will understand that in other embodiments, the elastic filler block 200 may also be made of other materials (e.g., silicone, rubber, latex, etc.).

[0098] Figure 4 This is used to illustrate the tensile deformation process of the elastic filling block 200 along the length X direction of the mattress 100. Among them, Figure 4 Image (a) shows the initial state of the elastic filler block 200 without stretching. Figure 4 Images (b) and (c) show the state of the elastic filler block 200 during the stretching process. Figure 4 (d) in the figure shows the state of the elastic filler block 200 after stretching.

[0099] like Figure 3 , Figure 4 and Figure 5 As shown, before connecting the upper wall 101 and lower wall 102 of the mattress 100, the elastic filling block 200 is in a position Figure 4 The initial, unstretched state is shown in (a). A tensile force F is applied along the length of the elastic filling block 200 (e.g., this direction is aligned with the length of the mattress 100), and the elastic filling block 200 passes through… Figure 4 The states of (b) and (c) are gradually stretched, eventually reaching... Figure 4 The state shown in (d) is as follows. The elastic filler block 200 includes at least one set of concave grooves 210, each set of concave grooves 210 including a plurality of first concave grooves 220 and a plurality of second concave grooves 230. The first concave grooves 220 and the second concave grooves 230 cooperate to cause the elastic filler block 200 to... Figure 4 The state shown in (d) exhibits self-sustaining properties. In other words, when the elastic filler block is stretched to... Figure 4 After reaching the middle (d) state, if no external force is applied to the elastic filling block 200, the elastic filling block 200 can maintain this state without shrinking back on its own. Thanks to this self-maintaining property, during the production process of the mattress 100, it can be fully stretched to... Figure 4 The elastic filling block 200 in the middle (d) state can be easily fixed inside the mattress 100. Specifically, the first surface 201 of the elastic filling block 200 is fixedly connected to the upper wall 101 of the mattress 100, and the second surface 202 of the elastic filling block 200 is fixedly connected to the lower wall 102 of the mattress 100, thus the elastic filling block 200 is... Figure 4 It is assembled into mattress 100 in the middle (d) state.

[0100] In some embodiments, the first concave groove 220 may be a through groove formed by cutting from one side of the elastic filler block 200 to the other side with a cutter of a corresponding shape. Since the groove forms a concave surface facing one side, it is referred to herein as a "concave groove". Similarly, the second concave groove 230 is also a through groove formed by cutting from one side of the elastic filler block 200 to the other side with a cutter of a corresponding shape.

[0101] For the sake of brevity, Figure 4The resilient filler block 200 is simplified to have three sets of concave grooves 210. Those skilled in the art will understand that the resilient filler block 200 can be configured with a desired number of concave groove sets as needed. Each set of concave grooves 210 includes six first concave grooves 220 and six second concave grooves 230. Those skilled in the art will understand that in other embodiments, each set of concave grooves 210 can be configured with a desired number of first concave grooves 220 and second concave grooves 230 as needed.

[0102] like Figure 4 Six first concave grooves 220 are distributed along the first axis V1 and penetrate the first surface 201 and the second surface 202, wherein the first axis V1 is parallel to the width direction Y (i.e. the second direction V) of the elastic filling block 200.

[0103] Each first concave groove 220 is independent of its adjacent counterparts. There is an uncut portion of sponge between adjacent first concave grooves 220. This uncut sponge allows the elastic filling block 200 to remain intact, preventing it from splitting into multiple pieces due to the presence of the first concave grooves 220. Figure 4 As shown in (a), in the initial state where the elastic filler block 200 is not stretched, the first concave groove 220 is a through cut. When the elastic filler block 200 is stretched, as shown in (a), the first concave groove 220 is a through cut. Figure 4 As shown in (d), the sponges on both sides of the multiple first concave grooves 220 are separated from each other to form independent and vertically connected cut holes 205. At the same time, the uncut sponges form connecting parts 206 between the cut holes 205. The connecting parts 206 connect the cut holes 205 to prevent the elastic filling block 200 from being overstretched.

[0104] Similarly, six second concave grooves 230 are distributed along the second axis V2 and penetrate the first surface 201 and the second surface 202, wherein the second axis V2 is parallel to the width direction Y of the elastic filling block 200. That is, the first concave groove 220 and the second concave groove 230 are arranged in parallel.

[0105] Each second concave groove 230 is independent of its adjacent counterpart. There is an uncut portion of sponge between adjacent second concave grooves 230. This uncut sponge allows the elastic filling block 200 to remain intact, preventing it from splitting into multiple pieces due to the presence of the second concave grooves 230. Figure 4 As shown in (a), in the initial state where the elastic filler block 200 is not stretched, the second concave groove 230 is a through-cut. When the elastic filler block 200 is stretched, as shown in (a), the second concave groove 230 is a through-cut. Figure 4As shown in (d), the sponges on both sides of the multiple second concave grooves 230 are separated from each other to form independent and vertically connected cut holes 207. At the same time, the uncut sponges form connecting parts 206 between the cut holes 207. The connecting parts 206 connect the cut holes 207 to prevent the elastic filling block 200 from being overstretched.

[0106] Compared to non-stretchable mattress filling materials, the stretched elastic filling block 200 in this application is smaller and lighter in volume due to the aforementioned cutouts 205 and 207, while supporting the same area of ​​the mattress upper wall. Furthermore, since this solution can form the aforementioned cutouts to reduce weight without drilling holes in the filling material, the elastic filling block 200 in this application will not suffer from material waste due to drilling.

[0107] Each first concave groove 220 is oriented towards the second axis V2, and each second concave groove 230 is oriented towards the first axis V1. In other words, in the same group of concave grooves, the first concave grooves 220 and the second concave grooves 230 are arranged opposite to each other.

[0108] In this embodiment, the first concave groove 220 and the second concave groove 230 of each group of concave grooves 210 have the same shape, and each first concave groove 220 is directly opposite a second concave groove 230. A central groove 240 is provided between the first concave groove 220 and the second concave groove 230, and the structure of the central groove 240 will be described in detail later.

[0109] like Figure 5 As shown, the first concave groove 220 includes a first segment 221 and a second segment 222 connected together. The projections of the first segment 221 and the second segment 222 onto the second surface 202 of the mattress 100 form a "V" shape. For example, the included angle α1 of the projections of the first segment 221 and the second segment 222 onto the second surface 202 is approximately a right angle. Similarly, the second concave groove 230 includes a first segment 231 and a second segment 232 connected together. The projections of the first segment 231 and the second segment 232 onto the second surface 202 form a "V" shape, and the included angle α1 of the projections of the first segment 231 and the second segment 232 onto the second surface 202 is approximately a right angle. The angle α2 between the first segment 221 and the second segment 222 of the first concave groove 220 and the length direction X of the mattress 100 is approximately 45°, and the angle α2 between the first segment 231 and the second segment 232 of the second concave groove 230 and the length direction X of the mattress 100 is approximately 45°. The V-shaped opening formed by the first segment 221 and the second segment 222 of the first concave groove 220 faces the V-shaped opening formed by the first segment 231 and the second segment 232 of the second concave groove 230, and each first concave groove 220 and a second concave groove 230 are arranged opposite to each other.

[0110] Those skilled in the art will understand that, in different embodiments, the included angle α1 of the projections of the first segment 221 and the second segment 222 of the first concave groove 220 onto the second surface 202 (and the included angle α1 of the projections of the first segment 231 and the second segment 232 of the second concave groove 230 onto the second surface 202) may be different; for example, it may be an acute angle or an obtuse angle. Similarly, the included angles α2 of the first segment 221 and the second segment 222 of the first concave groove 220 with the length direction X of the mattress 100 (and the included angles α2 of the first segment 231 and the second segment 232 of the second concave groove 230 with the length direction X of the mattress 100) may be different.

[0111] like Figure 4 As shown in (d), in this embodiment, the holes 205 and 207 after stretching the first concave groove 220 and the second concave groove 230 are both irregular hexagons.

[0112] In this embodiment, the first concave groove 220 and the second concave groove 230 are arranged opposite to each other and are spaced apart in the first direction U.

[0113] As described above, a central groove 240 is provided between the first concave groove 220 and the second concave groove 230. The central groove 240 includes a main groove 241, a first secondary groove 242, and a second secondary groove 243. The main groove 241 extends between the first axis V1 and the second axis V2 in a direction parallel to the first axis V1. The first secondary groove 242 is disposed at the first end of the main groove 241 and extends between a set of opposing first concave grooves 220 and second concave grooves 230. The second secondary groove 243 is disposed at the second end of the main groove 241 and extends between another set of opposing first concave grooves 220 and second concave grooves 230 adjacent to the first concave groove 220 and second concave groove 230 containing the first secondary groove 242. The main groove 241 is confined between the first secondary groove 242 and the second secondary groove 243, that is, the first secondary groove 242 and the second secondary groove 243 are located at both ends of the extension direction of the main groove 241. Optionally, the first auxiliary slot 242 and the second auxiliary slot 243 are symmetrical with respect to the main slot 241.

[0114] In this embodiment, the first secondary groove 242 and the second secondary groove 243 extend along a direction perpendicular to the main groove 241, that is, the first secondary groove 242 and the second secondary groove 243 extend along the length direction X of the mattress 100. Before the elastic filling block 200 is stretched, the central groove 240 is a roughly H-shaped slit; after stretching, it forms... Figure 4 The rectangular cut hole 208 shown in (d) is shown in the middle.

[0115] Those skilled in the art will understand that in other embodiments, the angle between the extending directions of the first secondary groove 242 and the second secondary groove 243 and the extending direction of the main groove 241 can be an acute angle or an obtuse angle, for example, but not limited to, such angles are approximately 60°, 70°, 80°, 85°, 95°, 100°, 110°, 120°, 135°, 150°, etc. For example, Figure 7 The angle between the extending directions of the first auxiliary groove 242 and the main groove 241 shown is approximately 110°, and the angle between the extending directions of the second auxiliary groove 243 and the main groove 241 is also approximately 110°.

[0116] by Figure 4 Taking the elastic filler block 200 shown as an example, the three sets of concave groove groups 210 are the first concave groove group 211, the second concave groove group 212 and the third concave groove group 213, and the tensile deformation process is as follows:

[0117] The elastic filler block 200 that is not under tension is in Figure 4 In the initial state shown in (a), the first concave groove 220, the second concave groove 230, and the central groove 240 are all closed slits. When subjected to a pulling force F applied to the mattress 100 in the longitudinal direction X and near the side of the first concave groove group 211, the slits of the first concave groove 220, the second concave groove 230, and the central groove 240 near the applied force position are opened, forming cut holes 205, 207, and 208. The cut holes 205, 207, and 208 formed by the first concave groove group gradually increase in size, as... Figure 4 As shown in (b).

[0118] The tensile force F continues to act on the elastic filler block 200. The slits of the first concave groove 220, the second concave groove 230, and the central groove 240 of the first concave groove group 211 become cut holes 205, 207, and 208, respectively, at which point the cut holes 205, 207, and 208 are fully expanded. The slits of the first concave groove 220, the second concave groove 230, and the central groove 240 of the second concave groove group 212 are pulled apart, forming cut holes 205, 207, and 208. The cut holes 205, 207, and 208 formed by the second concave groove group gradually increase in size, such as... Figure 4 As shown in (c).

[0119] As the tension F continues to be applied to the elastic filler block 200, the cut holes 205 and 207 corresponding to the first concave groove 220 and the second concave groove 230 of the second concave groove group 212, as well as the cut hole 208 of the central groove 240, all reach their preset limits. Simultaneously, the slits in the first concave groove 220, the second concave groove 230, and the central groove 240 of the third concave groove group 213 also transform into cut holes 205, 207, and 208 respectively during the stress process, reaching their maximum. That is, at this point, the first concave groove group 211, the second concave groove group 212, and the third concave groove group 213, as well as the central groove 240 corresponding to each group of concave grooves, all change from slits to cut holes, and the cut holes are stretched to their preset limits. In other words, the elastic filler block 200 is stretched to its maximum limit, such as... Figure 4 As shown in (d).

[0120] Understandably, the central groove 240 or concave groove near the edge of the elastic filler block 200 may be incomplete. For example... Figure 4 As shown, the central groove 240 near the edge of the elastic filler block 200 is truncated and incomplete.

[0121] like Figure 5 As shown, the first concave groove 220 and the second concave groove 230 are optionally symmetrical about the extension line of the main groove 241. The main groove 241 connects the midpoint of the first secondary groove 242 and the second secondary groove 243, so it can be said that one side of the first secondary groove 242 and the second secondary groove 243 extend into the range of the first concave groove 220, and the other side extends into the range of the second concave groove 230.

[0122] Optionally, the length of the first secondary groove 242 extending into the first concave groove 220 and the second concave groove 230 is half the length of the first secondary groove 242, denoted as H1. For example, the range of H1 is approximately 8mm-16mm. In the length direction X of the mattress 100 (i.e., the first direction U of the elastic filling block 200), the distance between the first secondary groove 242 and the first concave groove 220 is the same, denoted as H2, where the range of H2 is approximately 3-6mm, and the ratio of H1 to H2 is approximately between 2 and 3. In this embodiment, H1 = 12.0mm, H2 = 4.6mm, and H1 / H2 = 2.61. On the one hand, the reasonable ratio of H1 to H2 can ensure that the elastic filling block 200 can be fully stretched, thereby achieving the purpose of providing effective support for a large area of ​​the mattress 100 with limited elastic material; on the other hand, this ratio can also avoid the problem of the elastic filling block 200 being overstretched and unable to provide sufficient support strength.

[0123] It is understandable that the second auxiliary slot 243 is set with reference to the first auxiliary slot 242, and is symmetrically distributed with respect to the main slot 241.

[0124] exist Figure 5 In the illustrated embodiment, the projections of the first concave groove 220 and the second concave groove 230 onto the second surface 202 form a "V" shape. Those skilled in the art will understand that the first concave groove 220 and the second concave groove 230 can also have other shapes, which will be illustrated below.

[0125] from Figure 4 As can be seen, the length of the elastic filling block 200 increases significantly after stretching, while the width remains essentially unchanged. This allows the elastic filling block 200 to be used to fill a mattress 100 that is much longer than its original length without requiring a significant increase in filling material. Simultaneously, the stretched elastic filling block 200 provides relatively even and reliable support to the user on the mattress 100, offering good comfort. Furthermore, compared to existing mattresses filled with a single piece of material, this solution reduces the weight of the mattress 100, making it easier to transport and store, and avoids the waste generated by punching holes in a single piece of material, effectively reducing the production cost of the mattress 100.

[0126] In the above embodiment, the mattress 100 contains one elastic filling block 200. Those skilled in the art will understand that, in alternative embodiments, the mattress 100 may also contain multiple elastic filling blocks 200, which collectively support the user of the mattress 100, and their shapes and sizes may be the same or different. Figure 6a As shown, in one embodiment, elastic filling blocks 200 are uniformly distributed along the width direction Y of the mattress 100. For example... Figure 6b As shown, in another embodiment, the mattress 100 contains a plurality of rectangular elastic filling blocks 200, which are not all the same or have different sizes and shapes.

[0127] In some embodiments, a central groove 240 is not provided between the first concave groove 220 and the second concave groove 230 in each concave groove group. Examples are given below.

[0128] Figure 8 The image exemplarily illustrates the state of the elastic filler block 200 before it is stretched, in an alternative embodiment. Figure 9 The image shows the state of the elastic filler block 200 after stretching. Similar to the above embodiment, the elastic filler block 200 is provided with concave groove groups 210, each concave groove group 210 including a plurality of first concave grooves 220 and a plurality of second concave grooves 230.

[0129] For the sake of brevity, Figure 8 and Figure 9The elastic filler block 200 shown is simplified to have five concave groove groups 210. In each concave groove group 210, the first concave groove 220 and the second concave groove 230 have the same shape. Those skilled in the art will understand that the elastic filler block 200 can be configured with the desired number of concave groove groups as needed.

[0130] Taking any concave groove group 210 as an example, the first concave groove 220 includes a first segment 221, a second segment 222, and a third segment 223, wherein the third segment 223 is disposed between and connects the first segment 221 and the second segment 222; the second concave groove 230 includes a first segment 231, a second segment 232, and a third segment 233, wherein the third segment 233 is disposed between and connects the first segment 231 and the second segment 232. The shape of the second concave groove 230 is the same as the shape of the first concave groove 220.

[0131] like Figure 10 As shown, the first segment 221 and the second segment 222 of the first concave groove 220 both extend along the length direction X (i.e., the first direction U) of the mattress 100, that is, the first segment and the second segment of the first concave groove 220 are perpendicular to the first axis V1 respectively.

[0132] Optionally, the projection of the third segment 223 of the first concave groove 220 onto the second surface 202 is a broken line. Specifically, the projection of the third segment 223 of the first concave groove 220 onto the second surface 202 consists of two connected straight line segments, namely the first connecting segment 224 and the second connecting segment 225. The first connecting segment 224 connects to the first segment 221, and the included angle α3 between them is approximately 120°; the second connecting segment 225 connects to the second segment 222, and the included angle between them is also α3. Correspondingly, the included angle α4 between the first connecting segment 224 and the second connecting segment 225 is approximately 120°. In other words, the first concave groove 220 of this embodiment is a symmetrical shape, symmetrically arranged about the extension line M along the length direction X of the mattress 100 where the connection point of the first connecting segment 224 and the second connecting segment 225 is located.

[0133] Those skilled in the art will understand that in other embodiments, the included angles α3 and α4 can be other sizes. For example, α3 can be about 100°, 110°, 135°, etc. in alternative embodiments, and α4 can be set accordingly.

[0134] The shape of the second concave groove 230 is the same as that of the first concave groove 220.

[0135] Unlike the previous embodiment where the first concave groove 220 and the second concave groove 230 are arranged opposite each other, in this embodiment each first concave groove 220 and two second concave grooves 230 are interlocked, and each second concave groove 230 and two first concave grooves 220 are interlocked.

[0136] Specifically, with Figure 10 Taking the first concave groove 220 and the second concave groove 230 as examples, the first segment 221 of the same first concave groove 220a extends into the preceding second concave groove 230a, and the second segment 222 extends into the adjacent subsequent second concave groove 230b. Wherein, when a cut is partially or entirely located within the area surrounded by a concave groove, this cut is said to extend into that concave groove. Similarly, the first segment 231 of the same second concave groove 230a extends into the preceding first concave groove 220b, and the second segment 232 extends into the adjacent subsequent first concave groove 220a, thus the first segment 221 of the first concave groove 220a is between the second segment 222 of the adjacent first concave groove 220b and the second segment 232 of the second concave groove 230a; similarly, the second segment 232 of the second concave groove 230a is between the first segment 221 of the adjacent first concave groove 220a and the first segment 231 of the second concave groove 230b.

[0137] In the same concave groove group of this embodiment, the following is defined:

[0138] The projection of the first segment 221 of a first concave groove 220 onto the second surface 202 of the elastic filler block 200 is the first projection.

[0139] The extension direction of the aforementioned first projection is the first extension direction;

[0140] The projection of the third segment of a second concave groove 230 onto the second surface 202 of the elastic filler block 200 is a second projection, wherein the extension line of the first projection in the first extension direction intersects with the second projection.

[0141] The distance between two adjacent first concave grooves 220 is L1;

[0142] The distance between the first projection and the second projection in the first extending direction is L2;

[0143] Therefore, L1 is greater than L2.

[0144] Similarly, in the same concave groove group in this embodiment, the following is defined:

[0145] The projection of the first segment 231 of a second concave groove 230 onto the second surface 202 of the elastic filler block 200 is a third projection.

[0146] The extension direction of the aforementioned third projection is the third extension direction;

[0147] The projection of the third segment of the first concave groove 220 onto the second surface 202 of the elastic filler block 200 is the fourth projection, wherein the extension line of the third projection in the third extension direction intersects the fourth projection.

[0148] The distance between two adjacent second concave grooves 230 is L4;

[0149] The distance between the third projection and the fourth projection in the third extending direction is L5;

[0150] Therefore, L4 is greater than L5.

[0151] It is understood that the first concave groove 220 and the second concave groove 230 in this embodiment have the same shape and are symmetrical structures. Therefore, in the length direction X of the mattress 100, the distance L3 between the projection of the second segment 222 of each first concave groove 220 onto the second surface 202 and the first connecting segment 234 of the third segment 233 of the second concave groove 230 is less than the distance L1 between any two adjacent first concave grooves 220, and the distance L6 between the projection of the second segment 232 of each second concave groove 230 onto the second surface 202 and the third segment 223 of the first concave groove 220 is less than the distance L4 between any two adjacent second concave grooves 230.

[0152] In this embodiment, the plurality of first concave grooves 220 in each concave groove group 210 of each group are equally spaced along the first axis V1, that is, the distance between any two adjacent first concave grooves 220 is L1. Similarly, the plurality of second concave grooves 230 are equally spaced along the second axis V2, that is, the distance between any two adjacent second concave grooves 230 is L4. In this embodiment, the distance L1 between any two adjacent first concave grooves 220 is equal to the distance L4 between any two adjacent second concave grooves 230. Therefore, it can be understood that along the length direction X of the mattress 100, the following distances are equal: L2 between the projection of the first segment 221 of each first concave groove 220 onto the second surface 202 and the projection of the third segment 233 of each second concave groove 230 onto the second surface 202; L3 between the projection of the second segment 222 of each first concave groove 220 onto the second surface 202 and the projection of the third segment 233 of each second concave groove 230 onto the second surface 202; L5 between the projection of the first segment 231 of each second concave groove 230 onto the second surface 202 and the projection of the third segment 223 of each second concave groove 230 onto the second surface 202 and the projection of the second segment 232 of each second concave groove 230 onto the third segment 223 of each second concave groove 230 onto the second surface 202 and the projection of the third segment 223 of each second concave groove 230 onto the first concave groove 220; that is, L2 = L3 = L5 = L6.

[0153] Furthermore, the distance between the first segment 221 of the first concave groove 220 and the second segment 232 of the second concave groove 230 is defined as the first distance L7, and the distance between two adjacent first concave grooves 220 is defined as the second distance L1. The ratio of the first distance L7 to the second distance L1 ranges from 0.8 to 1.8. For example, this ratio can be 0.8, 1.2, 1.6, or 1.8.

[0154] Preferably, the ratio of the first distance L7 to the second distance L1 is in the range of 1.0-1.5. For example, the ratio can be 1.0, 1.2, or 1.5.

[0155] More preferably, the ratio of the first distance L7 to the second distance L1 is in the range of 1.1-1.3. For example, the ratio can be 1.1, 1.2 or 1.3.

[0156] The larger the ratio of the first distance L7 to the second distance L1, the greater the stretchable distance of the elastic filler block 200. However, the greater the proportion of the cut holes 205 and 207 on the entire upper surface of the elastic filler block 200 after stretching, the lighter the product weight can be obtained by sacrificing a small amount of support of the elastic filler block 200, thus improving the portability of the product.

[0157] Optionally, the first distance L7 is in the range of 8mm-15mm. For example, the first distance L7 can be, but is not limited to, 8mm, 10mm, 12mm or 15mm; the second distance L1 is in the range of 7mm-12mm. For example, the second distance L1 can be, but is not limited to, 7mm, 9mm or 12mm.

[0158] Specifically, in this embodiment, the first distance L7 is 9mm and the second distance L1 is 9.3mm. The ratio of the first distance L7 to the second distance L1 is approximately 0.97. This ratio can ideally save materials while ensuring the support of the elastic filling block 200.

[0159] Continue to refer to Figure 10 The length of the first segment 221 of the first concave groove 220 is defined as the first length L8, and the distance between the first segment 221 of the first concave groove 220 and the third segment 233 of the second concave groove 230 along the extension direction of the first segment 221 of the first concave groove 220 (i.e., the length direction X of the mattress 100) is defined as the third distance L2; the ratio of the first length L8 to the third distance L2 is in the range of 1.5-3.0. For example, this ratio can be 1.5, 2.0, 2.5 or 3.0.

[0160] Preferably, the ratio of the first length L8 to the third distance L2 is in the range of 1.8-2.5. For example, the ratio can be 1.8, 2.0 or 2.5.

[0161] More preferably, the ratio of the first length L8 to the third distance L2 is in the range of 2.0-2.2. For example, the ratio can be 2.0, 2.1, or 2.2.

[0162] The larger the ratio of the first length L8 to the third distance L2, the greater the stretchable distance of the elastic filler block 200. However, the greater the proportion of the cut holes 205 and 207 on the entire upper surface of the elastic filler block 200 after stretching, the lighter the product weight can be obtained by sacrificing a small amount of support of the elastic filler block 200, thus improving the portability of the product.

[0163] Optionally, the first length L8 is in the range of 6mm-14mm. For example, the first length L8 can be, but is not limited to, 6mm, 8mm, 10mm, 12mm or 14mm; the third distance L2 is in the range of 3mm-7mm. For example, the third distance L2 can be, but is not limited to, 3mm, 5mm or 7mm.

[0164] Specifically, in this embodiment, the first length L8 is 8.6 mm and the third distance L2 is 5.5 mm. At this time, the ratio of the first length L8 to the third distance L2 is approximately 1.56. This ratio can ideally save materials while ensuring the support of the elastic filling block 200.

[0165] Figure 11 and Figure 12 An elastic filler block is shown in another embodiment. Wherein, Figure 11 This shows the state of the elastic filler block 200 before it is stretched. Figure 12 The image shows the state of the elastic filler block 200 after it has been stretched. The elastic filler block 200 is provided with six sets of concave grooves 210 by way of example.

[0166] In this embodiment, the first concave groove 220 and the second concave groove 230 have the same shape, wherein the projection of the third segment 223 of the first concave groove 220 onto the second surface 202 includes four sequentially connected straight line segments.

[0167] like Figure 13 As shown, the projection of the third segment 223 of the first concave groove 220 on the second surface 202 in this embodiment includes four straight segments, namely the first connecting segment 224, the second connecting segment 225, the third connecting segment 226 and the fourth connecting segment 227 connected in sequence, wherein the first connecting segment 224 connects to the first segment 221 and the fourth connecting segment 227 connects to the second segment 222.

[0168] In this embodiment, the included angle α5 between the first segment 221 and the first connecting segment 224 of the first concave groove 220 is 129°, the included angle α6 between the first connecting segment 224 and the second connecting segment 225 is 117°, the included angle α7 between the second connecting segment 225 and the third connecting segment 226 is 132°, the included angle α6 between the third connecting segment 226 and the fourth connecting segment 227 is 117°, and the included angle α5 between the fourth connecting segment 227 and the second segment 222 is 129°. The first concave groove 220 is symmetrical about an axis N parallel to the length direction X of the mattress 100, located at the connection point of the second connecting segment 225 and the third connecting segment 226.

[0169] Those skilled in the art will understand that, in alternative embodiments, α5, α6, and α7 may be other sizes, for example, each may be approximately 120°, 130°, or 135°.

[0170] The shape of the second concave groove 230 is the same as that of the first concave groove 220.

[0171] Furthermore, in this embodiment, the ratio of the first distance L7 to the second distance L1 is approximately 1.5. For example, the first distance L7 is 13.5 mm, and the second distance L1 is 9 mm. This ratio can ideally save material while ensuring the support of the elastic filler block 200.

[0172] In this embodiment, the ratio of the first length L8 to the third distance L2 is approximately 1.5. For example, the first length L8 is 8.9 mm, and the third distance L2 is 4.1 mm. This ratio can ideally save material while ensuring the support of the elastic filler block 200.

[0173] Figure 14 and Figure 15 An elastic filler block is shown in another embodiment. Wherein, Figure 14 This shows the state of the elastic filler block 200 before it is stretched. Figure 15 The diagram shows the stretched state of the elastic filler block 200. The elastic filler block 200 exemplarily includes six sets of concave grooves 210, where the first concave groove 220 and the second concave groove 230 in each set of concave grooves 210 have the same shape. (As described above...) Figure 13 Similar to the illustrated embodiment, the projection of the third segment 223 of the first concave groove 220 onto the second surface 202 also includes four straight line segments.

[0174] like Figure 16 As shown, with Figure 13Unlike the illustrated embodiment, in this embodiment, the first segment 221 and the second segment 222 of the first concave groove 220 do not extend along the length direction X of the mattress 100, but are symmetrical from left to right, and both form an angle α8 with the length direction X of the mattress 100. For example, in this embodiment, α8 is 39°. The end of the first segment 221 of the first concave groove 220 furthest from the second segment 222 forms an angle α5 with the first connecting segment 224. For example, in this embodiment, α5 is 90°. The first connecting segment 224 forms an angle α6 with the second connecting segment 225. For example, in this embodiment, α6 is 90°. The second connecting segment 225 forms an angle α7 with the third connecting segment 226. For example, in this embodiment, α7 is 77°. The third connecting segment 226 forms an angle α6 with the fourth connecting segment 227. For example, in this embodiment, α6 is 90°. The fourth connecting segment 227 forms an angle α5 with the second segment 222. For example, in this embodiment, α5 is 90°. The first concave groove 220 is a symmetrical shape, and it is symmetrical about the axis N parallel to the length direction X of the mattress 100, about the connection point of the second connecting segment 225 and the third connecting segment 226.

[0175] Those skilled in the art will understand that in other embodiments, α5, α6, α7, and α8 can be selected from other values.

[0176] The shape of the second concave groove 230 is the same as that of the first concave groove 220.

[0177] Furthermore, in this embodiment, the ratio of the first distance L7 to the second distance L1 is approximately 1.3. For example, the first distance L7 is 11.2 mm, and the second distance L1 is 8.4 mm. This ratio can ideally save material while ensuring the support of the elastic filler block 200.

[0178] In this embodiment, the ratio of the first length L8 to the third distance L2 is approximately 2.0. For example, the first length L8 is 7.7 mm, and the third distance L2 is 3.8 mm. This ratio can ideally save material while ensuring the support of the elastic filler block 200.

[0179] In the above embodiments, the first concave groove 220 and the second concave groove 230 of each concave groove group 210 have the same shape. In alternative embodiments, the first concave groove 220 and the second concave groove 230 of a concave groove group 210 may also have different shapes.

[0180] For example, refer to Figure 17 Each set of concave grooves 210 of the elastic filling block 200 includes six first concave grooves 220 and six second concave grooves 230 arranged opposite to them. The first concave grooves 220 and... Figure 4 The first concave groove in the illustrated embodiment has the same or substantially the same shape as the second concave groove 230 and Figure 11The second concave grooves in the illustrated embodiments have the same or substantially the same shape. The first concave groove 220 and the second concave groove 230 are opposite to each other and spaced apart in the length direction X (i.e., the first direction U) of the mattress 100. The aforementioned central groove 240 is provided between the first concave groove 220 and the second concave groove 230. The first sub-groove 242 and the second sub-groove 243 of the central groove 240 extend between the first concave groove 220 and the second concave groove 230.

[0181] For example, Figure 18 The elastic filler block 200 shown includes six first concave grooves 220 and six second concave grooves 230 arranged opposite each other in each group of concave grooves 210. The first concave grooves 220 and... Figure 16 The first concave groove in the illustrated embodiment has the same or substantially the same shape as the second concave groove 230 and Figure 13 The second concave grooves in the illustrated embodiments have the same or substantially the same shape. The first concave groove 220 and the second concave groove 230 are opposite to each other and spaced apart in the length direction X of the mattress 100. The aforementioned central groove 240 is provided between the first concave groove 220 and the second concave groove 230. The first secondary groove 242 and the second secondary groove 243 of the central groove 240 extend between the first concave groove 220 and the second concave groove 230.

[0182] The above are two examples of different shapes for the first concave groove 220 and the second concave groove 230. Those skilled in the art will understand that the first concave groove 220 and the second concave groove 230 can also be other shapes.

[0183] In addition, the shapes of each concave groove group 210 can be different.

[0184] refer to Figure 19 The elastic filling block 200 is provided with a first concave groove group 210a, a second concave groove group 210b, a third concave groove group 210c, and a fourth concave groove group 210d. The first concave groove group 210a includes a first concave groove 220a and a second concave groove 230a. Figure 5 The first concave groove 220 in the illustrated embodiment has the same or substantially the same shape. The first concave groove 220b and the second concave groove 230b in the second concave groove group 210b are... Figure 16 The first concave groove 220 in the illustrated embodiment has the same or substantially the same shape, and the first concave groove 220c and the second concave groove 230c in the third concave groove group 210c are... Figure 11 The first concave groove 220 in the illustrated embodiment has the same or substantially the same shape. The first concave groove 220d and the second concave groove 230d in the fourth concave groove group 210d are... Figure 8 The first concave groove 220 in the illustrated embodiment has the same or substantially the same shape.

[0185] On the other hand, the multiple sets of concave grooves 210 may have some parts with the same shape and others with different shapes. For example, see reference. Figure 20 Taking the elastic filling block 200 containing four sets of concave grooves as an example, the first concave groove 220a and the second concave groove 230a in the first concave groove group 210a are respectively connected to... Figure 11 In the illustrated embodiment, the first concave groove 220 has the same or substantially the same shape; the first concave groove 220b and the second concave groove 230b in the second concave groove group 210b are respectively and Figure 8 In the illustrated embodiment, the first concave groove 220 has the same or substantially the same shape; the first concave groove 220c and the second concave groove 230c in the third concave groove group 210c are respectively and Figure 11 In the illustrated embodiment, the first concave groove 220 has the same or substantially the same shape; the first concave groove 220d and the second concave groove 230d in the fourth concave groove group 210d are respectively and Figure 8 In the embodiments shown, the first concave groove 220 has the same or substantially the same shape.

[0186] In some embodiments, the mattress 100 has an air valve for inflation and deflation, through which the inflation chamber of the mattress 100 communicates with the outside; the air valve can be opened and closed, and when the air valve is closed, the inflation chamber of the mattress 100 is blocked from the outside. When the air valve is open, the user can inflate or deflate the mattress 100 using an air pump connected to the air valve. After inflation, the mattress 100 is in an inflated state; after deflation, the mattress 100 is in a deflated state. Whether the inflation / deflation operation is completed may be determined in different ways in different embodiments. For example, in some embodiments, the completion of the inflation / deflation operation is determined by whether the pressure difference between the air pressure in the inflation chamber of the mattress 100 and the external atmospheric pressure reaches a preset pressure difference. Specifically, in the embodiments of this application, the mattress 100 is considered fully inflated when its internal pressure reaches 200 mmH2O (millimeters of water column); and the mattress 100 is considered fully deflated when its internal pressure reaches -250 mmH2O. Here, the internal pressure of the mattress 100 refers to the pressure difference between the gas pressure inside the mattress 100 and the atmospheric pressure outside the mattress 100.

[0187] The length of the mattress 100, which was originally inflated, will decrease to some extent after the deflation operation to facilitate storage. Ideally, the length of the mattress 100 in the deflated state will be 30% to 60% of its length in the inflated state (e.g., but not limited to, approximately 30%, approximately 35%, approximately 40%, approximately 45%, approximately 50%, approximately 55%, and approximately 60%). In one specific embodiment, based on the aforementioned internal pressure standards at the completion of inflation and deflation, the measured lengths of the mattress 100 in the inflated and deflated states are approximately 203 cm and 91 cm, respectively, corresponding to approximately 45% of its length in the inflated state. Similarly, the width of the mattress 100, which was originally inflated, may optionally decrease to some extent after the deflation operation. Ideally, for the same mattress 100, its width in the deflated state is 70% to 90% of its width in the inflated state (e.g., but not limited to, approximately 70%, approximately 75%, approximately 85%, and approximately 90%). Understandably, in some embodiments, the length and width of the mattress 100, originally in an inflated state, can be reduced to some extent with reference to the above proportions after the deflation operation. In the aforementioned specific embodiment, the measured widths of the mattress 100 in the inflated and deflated states are approximately 152 cm and 126 cm, respectively, corresponding to a width in the deflated state that is approximately 83% of its width in the inflated state.

[0188] Based on this, since the elastic filling block 200 inside the mattress 100 has the aforementioned stretchable structure, compared to the inflated state, the reduction in length of the mattress 100 after deflating can be greater than the reduction in width, thus making the mattress 100 easy to store due to its significantly shortened length after deflating. Alternatively, the length-to-width ratio k1 (length to width ratio) of the mattress 100 in the inflated state is greater than the length-to-width ratio k2 in the deflated state, i.e., the ratio of k1 to k2 is greater than 1. Ideally, the ratio of k1 to k2 ranges from 1.2 to 2.5. In various embodiments, this ratio can vary depending on factors such as the structure of the elastic filling block 200, the material / thickness of the upper and lower walls of the mattress 100, and the structure of the elastic filling block. For example, the ratio of k1 to k2 can be approximately, but is not limited to, 1.2, 1.3, 1.4, 1.6, 1.8, 2.0, 2.3, or 2.5. In the aforementioned specific embodiment, k1 is approximately 1.34, k2 is approximately 0.72, and the value of k1 / k2 is approximately 1.86.

[0189] Existing air mattresses with internal foam retain roughly the same length and width after deflation, with very limited reduction in length. Therefore, these mattresses still require considerable storage space. In contrast, the mattress 100 described above significantly reduces its length after deflation, requiring minimal storage space and offering great convenience.

[0190] In the above embodiments, the stretching direction (i.e., its first direction) of the elastic filling block 200 is parallel to the length direction of the mattress 100. In an alternative embodiment, the stretching direction (i.e., its first direction) of the elastic filling block 200 is parallel to the height direction of the mattress 100.

[0191] For example, refer to Figure 21 The elastic filling block 200 includes a first end 203 and a second end 204 disposed opposite to each other in the thickness direction Z of the mattress 100, and a first surface 201 and a second surface 202 disposed opposite to each other in the width direction Y of the mattress 100. The first end 203 and the second end 204... Figure 21 The upper and lower surfaces of the elastic filler block 200 are formed in the orientation shown, with the first surface 201 and the second surface 202 in... Figure 21 The front and rear surfaces of the elastic filling block 200 are formed in the orientation shown; the first end 203 is fixed to the upper wall 101, and the second end 204 is fixed to the lower wall 102.

[0192] The elastic filling block 200 is stretchable in the thickness direction Z of the mattress 100. When the chamber 104 is inflated, the thickness of the mattress 100 increases, and the elastic filling block 200 is stretched in the vertical direction. After being stretched, the elastic filling block 200 limits the distance between the upper wall 101 and the lower wall 102 of the mattress 100, preventing the mattress 100 from over-inflating. At this time, the elastic filling block 200 acts as a tensioning member of the mattress 100, keeping the mattress 100 in the desired shape.

[0193] Optionally, only one elastic filling block 200 is provided in the mattress 100; in an alternative embodiment, multiple elastic filling blocks 200 may be provided in the mattress 100, and these elastic filling blocks 200 respectively serve as tensioning members of the mattress 100.

[0194] For example, refer to Figure 22 In one embodiment, the mattress 100 includes six elastic filling blocks 200, which are optionally spaced apart in the width direction Y of the mattress 100; it is understood that in other embodiments, the elastic filling blocks 200 may be spaced apart along the length direction X of the mattress 100. In this embodiment, each elastic filling block 200 extends along the length direction X of the mattress 100, and the upper surface (i.e., the first end 203) of each elastic filling block 200 is connected to the upper wall 101, and the lower surface (i.e., the second end 204) is connected to the lower wall 102; each elastic filling block 200 can be stretched along the thickness direction Z of the mattress 100.

[0195] refer to Figure 23In one embodiment, the mattress 100 includes a plurality of elastic filling blocks 200 spaced apart along its length direction X. A first end 203 of each elastic filling block 200 is connected to the upper wall 101 of the mattress 100, and a second end 204 is connected to the lower wall 102 of the mattress 100. Each elastic filling block 200 is stretchable along the thickness direction Z of the mattress 100, thereby serving as tensioning members of the mattress 100. For example, these elastic filling blocks 200 are attached to the upper and lower walls of the mattress 100 by welding, gluing, or other means.

[0196] Among them, Figure 23 In the illustrated embodiment, the first end 203 and the second end 204 of each elastic filling block 200, which connects to the upper wall 101 and the lower wall 102 of the mattress 100, are located on the same side of its main body, thus giving each elastic filling block 200 a C-shaped cross-section. It is understood that in alternative embodiments, the first end 203 and the second end 204 of each elastic filling block 200 are located on opposite sides of its main body, thus giving each elastic filling block 200 a Z-shaped cross-section. Similarly, it is understood that in some embodiments, some elastic filling blocks 200 may have a Z-shaped cross-section, while others may have a C-shaped cross-section.

[0197] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices recited in the apparatus claims may also be implemented by a single unit or device in software or hardware. The terms "first," "second," etc., are used to indicate names and do not indicate any particular order.

Claims

1. An elastic filler block, stretchable in a first direction, characterized in that, include: The first and second sides facing away from each other; as well as At least one set of concave grooves, each set of concave grooves comprising: Multiple first concave grooves are distributed along a first axis and penetrate the first surface and the second surface, each first concave groove and its adjacent first concave grooves are independent, wherein the first axis is parallel to a second direction of the elastic filler block; and Multiple second concave grooves are distributed along a second axis and penetrate the first surface and the second surface. Each second concave groove and its adjacent second concave groove are independent, wherein the second axis is parallel to the second direction of the elastic filler block. Each of the first concave grooves is oriented toward the second axis, and each of the second concave grooves is oriented toward the first axis.

2. The elastic filler block according to claim 1, wherein: Each first concave groove is interlocked with two second concave grooves, and each second concave groove is interlocked with two first concave grooves.

3. The elastic filler block according to claim 2, wherein: Each of the first concave grooves includes a first segment, a second segment, and a third segment connecting the first segment and the second segment, wherein the projections of the first segment and the second segment onto the second surface are line segments; Each of the second concave grooves includes a first segment, a second segment, and a third segment connecting the first segment and the second segment, wherein the projections of the first segment and the second segment onto the second surface are line segments; The distance between any two adjacent first concave grooves is greater than the distance between the projection of the first concave groove onto the second surface and the projection of the nearest second concave groove onto the second surface in the direction of the extension of the projection of the first segment onto the second surface; and The distance between any two adjacent second concave grooves is greater than the distance between the projection of the first segment of each second concave groove onto the second surface and the projection of the nearest first concave groove onto the second surface in the direction of extension of the projection of its first segment onto the second surface.

4. The elastic filler block according to claim 1, wherein, The elastic filler block further includes a central groove, the central groove comprising: The main groove extends between the first axis and the second axis in a direction parallel to the first axis; A first auxiliary groove is disposed at the first end of the main groove; and The second auxiliary groove is located at the second end of the main groove; The main slot is defined between the first secondary slot and the second secondary slot.

5. The elastic filler block according to claim 4, wherein, The first and second sub-slots extend in a direction perpendicular to the main slot.

6. The elastic filler block according to claim 4, wherein, The angle between the extending directions of the first and second auxiliary grooves and the extending direction of the main groove is an acute or obtuse angle.

7. The elastic filler block according to claim 4, wherein, The first and second auxiliary slots are symmetrical with respect to the main slot.

8. The elastic filler block according to claim 4, wherein: Each of the first concave grooves is directly opposite a second concave groove; The first secondary groove extends between a set of opposing first and second concave grooves; and The second sub-groove extends between an adjacent set of opposing first and second concave grooves.

9. The elastic filler block according to claim 1, wherein: Each of the first concave grooves includes a first segment, a second segment, and a third segment, wherein the third segment connects the first segment and the second segment; Each of the second concave grooves includes a first segment, a second segment, and a third segment, wherein the third segment connects the first segment and the second segment.

10. The elastic filler block according to claim 9, wherein, The projection of the third segment onto the second surface is a broken line.

11. The elastic filler block according to claim 9, wherein, The first segment of the first concave groove and the second segment of the first concave groove are perpendicular to the first axis.

12. The elastic filler block according to claim 11, wherein, The first section of the second concave groove and the second section of the second concave groove are perpendicular to the second axis.

13. The elastic filler block according to claim 9, wherein: The first concave groove and the second concave groove have the same shape; Define the distance between the first segment of the first concave groove and the second segment of the second concave groove as the first distance, and define the distance between two adjacent first concave grooves as the second distance, then: The second segment of the second concave groove lies between the first segment of the first concave groove and the second segment of the first concave groove; and The ratio of the first distance to the second distance is in the range of 0.8-1.

8.

14. The elastic filler block according to claim 13, wherein, The ratio of the first distance to the second distance is in the range of 1.0-1.

5.

15. The elastic filler block according to claim 14, wherein, The ratio of the first distance to the second distance is in the range of 1.1-1.

3.

16. The elastic filler block according to claim 13, wherein, The first distance ranges from 8 to 15 mm, and the second distance ranges from 7 to 12 mm.

17. The elastic filler block according to claim 9, wherein: Define the length of the first segment of the first concave groove as the first length; The third distance is defined as the distance between the first segment of the first concave groove and the third segment of the second concave groove along the extending direction of the first segment of the first concave groove; wherein: The second segment of the second concave groove lies between the first segment of the first concave groove and the second segment of the first concave groove; and The ratio of the first length to the third distance ranges from 1.5 to 3.

0.

18. The elastic filler block according to claim 17, wherein, The ratio of the first length to the third distance ranges from 1.8 to 2.

5.

19. The elastic filler block according to claim 17, wherein, The ratio of the first length to the third distance is in the range of 2.0-2.

2.

20. The elastic filler block according to claim 17, wherein, The first length ranges from 6 to 14 mm, and the third distance ranges from 3 to 7 mm.

21. The elastic filler block according to any one of claims 1 to 20, wherein, Each of the first concave grooves has a first shape, and each of the second concave grooves has a second shape; the first shape and the second shape may be the same or different.

22. The elastic filler block according to any one of claims 1 to 20, wherein, The elastic filling block includes a first concave groove group and a second concave groove group; The first concave groove of the first concave groove group has a first shape, and the second concave groove of the first concave groove group has a second shape; The first concave groove of the second concave groove group has a third shape, and the second concave groove of the second concave groove group has a fourth shape; Wherein, the first shape and the third shape are the same or different, and the second shape and the fourth shape are the same or different.

23. A mattress, characterized in that, include: The upper and lower walls are set relative to each other; as well as The elastic filler block according to any one of claims 1 to 22; The elastic filler block is in a stretched state. and The first side of the elastic filler block is fixed to the upper wall, and the second side of the elastic filler block is fixed to the lower wall.

24. The mattress according to claim 23, wherein, The mattress also includes sidewalls, the upper end of which is connected to the periphery of the upper wall, and the lower end of which is connected to the periphery of the lower wall. The elastic filling block is disposed in the space enclosed by the upper wall, the lower wall, and the sidewalls.

25. The mattress according to claim 23, wherein, The mattress is inflatable.

26. The mattress according to claim 25, having an inflated state and an deflated state; in: When the mattress is in the inflated state, the length of the mattress is a first length; When the mattress is in the de-airing state, the length of the mattress is the second length; and The ratio between the second length and the first length ranges from 30% to 60%.

27. The mattress according to claim 25, having an inflated state and an deflated state; wherein, When the mattress is in the inflated state, the width of the mattress is a first width; When the mattress is in the deflated state, the width of the mattress is the second width; and The ratio between the second width and the first width ranges from 70% to 90%.

28. The mattress according to claim 25, having an inflated state and an deflated state; wherein, When the mattress is in the inflated state, the length of the mattress is a first length, and the width of the mattress is a first width; When the mattress is in the deflated state, the length of the mattress is the second length, and the width of the mattress is the second width; and The ratio between the second length and the first length ranges from 30% to 60%, and the ratio between the second width and the first width ranges from 70% to 90%.

29. The mattress according to any one of claims 25 to 28, having an inflated state and an deflated state; wherein, When the mattress is in the inflated state, the length of the mattress is a first length, and the width of the mattress is a first width; When the mattress is in the de-airing state, the length of the mattress is the second length, and the width of the mattress is the second width; The ratio of the first length to the first width is the first aspect ratio, and the ratio of the second length to the second width is the second aspect ratio; Wherein, the first aspect ratio is greater than the second aspect ratio.

30. The mattress according to claim 29, wherein, The ratio between the first aspect ratio and the second aspect ratio ranges from 1.2 to 2.

5.

31. An inflatable mattress, characterized in that, include: The upper and lower walls, which are positioned opposite each other, together define an air-filled chamber; as well as The elastic filling block according to any one of claims 1 to 22 is disposed in the air-filled chamber; The first end of the elastic filler block is fixed to the upper wall, and the second end of the elastic filler block is fixed to the lower wall. The first end and the second end are distributed in the first direction of the elastic filler block.

32. The air-filled mattress according to claim 31, wherein, The inflatable mattress includes a plurality of the elastic filling blocks.

33. The air-filled mattress according to claim 32, wherein, The elastic filler block is C-shaped or Z-shaped.

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