Mattress fasteners and laminated mattresses

Abstract

To provide a mattress fixing tool for easily fixing a laminated mattress.SOLUTION: A mattress fixing tool fixes a first mattress to a second mattress positioned on the first mattress. The fixing tool includes: a first connection part; an extension part extending from the first connection part; and second connection parts and third connection parts extending from the extension part by bending.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] Embodiments of the present invention relate to a mattress fixture and a laminated mattress.

Background Art

[0002] There is known a laminated mattress in which a surface fastener is joined to a part of the lower surface of an upper mattress to fix the upper mattress and a lower mattress (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the laminated mattress described in Patent Document 1, when the upper mattress is displaced, the surface fastener may peel off from the lower mattress, and the upper mattress and the lower mattress may be displaced.

[0005] Embodiments of the present invention provide a mattress fixture and a laminated mattress that can easily fix the laminated mattresses.

Means for Solving the Problems

[0006] An embodiment of the present invention is a mattress fixture for fixing a first mattress and a second mattress located above the first mattress, comprising a first coupling portion, an extension portion extending from the first coupling portion, and second and third coupling portions extending from the extension portion and bent therefrom.

Effects of the Invention

[0007] Embodiments of the present invention can provide a mattress fastener and a stacked mattress that can easily secure stacked mattresses. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing a laminated mattress using a mattress fixing device according to the first embodiment of the present invention. [Figure 2] This is a perspective view showing the first mattress and the second mattress separated in Figure 1. [Figure 3] This is a cross-sectional view showing the state in which the first mattress and the second mattress are secured together by a mattress fastener. [Figure 4] This is a perspective view showing the mattress fastener as a standalone unit. [Figure 5] This is a perspective view showing a mattress fastener according to the second embodiment. [Figure 6] This is a perspective view showing a mattress fastener according to the third embodiment. [Figure 7] This is a cross-sectional view showing the state in which three mattresses are secured together using mattress fasteners. [Figure 8] This is a perspective view showing a mattress fastener according to the fourth embodiment. [Modes for carrying out the invention]

[0009] A mattress fastener and a laminated mattress according to the first embodiment of the present invention will be described with reference to Figures 1 to 4.

[0010] Figure 1 is a perspective view showing a laminated mattress using a mattress fastener according to the first embodiment of the present invention. Figure 2 is a perspective view showing the first mattress and the second mattress separated from each other, as shown in Figure 1. Figure 3 is a cross-sectional view showing the state in which the first mattress and the second mattress are secured together by a mattress fastener. Figure 4 is a perspective view showing the mattress fastener as a standalone unit. Note that in each figure, the thickness of the mattress fasteners is shown larger than it actually is for illustrative purposes. In other words, the scale relationship between the mattress and the mattress fasteners is different.

[0011] The laminated mattress 10 is constructed by securing multiple mattresses together using mattress fasteners 20. This example describes the case where two mattresses (the first mattress 12 and the second mattress 15) are laminated.

[0012] The first mattress 12 and the second mattress 15 differ in, for example, firmness and thickness. By layering the two mattresses, it is possible to provide a sleeping experience tailored to the user's preferences.

[0013] The laminated mattress 10 comprises a first mattress 12, a second mattress 15 positioned on top of the first mattress 12, and a mattress fastener 20 for securing the first mattress 12 and the second mattress 15.

[0014] The mattress fastener 20 secures the first mattress 12 to the second mattress 15, which is positioned on top of the first mattress 12. The mattress fastener 20 has, for example, a flat elastic band that is stretchable in the longitudinal direction. The longitudinal length of the mattress fastener 20 is set to correspond to the thickness of the mattress.

[0015] The mattress fastener 20 has properties such as chemical resistance and heat resistance. This allows the first mattress 12, the second mattress 15, and the mattress fastener 20 to be washed together while the first mattress 12 and the second mattress 15 are fixed together with the mattress fastener 20.

[0016] The first mattress 12 and the second mattress 15 are fixed by a plurality of mattress fixtures 20. In this example, as shown in FIGS. 1 and 2, the first mattress 12 and the second mattress 15 are fixed by eight mattress fixtures 20. And the mattress fixture 20 has a first coupling part 22, an extension part 24, a second coupling part 26, and a third coupling part 28.

[0017] The first coupling part 22 is coupled to the lower surface 12a of the first mattress 12. As shown in FIGS. 3 and 4, the first coupling part 22 has a surface fastener 22a that couples to the lower surface 12a of the first mattress 12. That is, the first coupling part 22 is detachable from the lower surface 12a of the first mattress 12.

[0018] The lower surface 12a of the first mattress 12 is made of a material to which the surface fastener 22a can be coupled. The surface fastener 22a has hooks. On the other hand, the lower surface 12a of the first mattress 12 has the function of a loop for the hooks of the surface fastener 22a to catch. The lower surface 12a of the first mattress 12 is formed of, for example, polyester fiber (solid cotton) or polypropylene fiber (solid cotton) to which the surface fastener 22a can be coupled. In this example, the entire contact surface of the first coupling part 22 that contacts the first mattress 12 is the surface fastener 22a. However, a part of the contact surface of the first coupling part 22 may be the surface fastener 22a and it may be coupled to the lower surface 12a of the first mattress 12.

[0019] The extension part 24 extends from the first coupling part 22. In a state where the mattress fixture 20 fixes the first mattress 12 and the second mattress 15, the extension part 24 extends along the side surface 12c of the first mattress 12. The tip side of the extension part 24 is sandwiched between the first mattress 12 and the second mattress 15. The extension part 24 is formed of, for example, flat rubber that can expand and contract in the longitudinal direction. The extension part 24 connects between the first coupling part 22 and the second coupling part 26 and the third coupling part 28 described later.

[0020] The second connecting portion 26 extends bent from the extension portion 24. The second connecting portion 26 is connected to the extension portion 24 and bonded to the upper surface 12b of the first mattress 12. The second connecting portion 26 extends bent from the extension portion 24. As shown in Figure 4, the angle α between the extension portion 24 and the second connecting portion 26 is greater than 0 degrees and less than 180 degrees (0° < α < 180°). In this example, the angle α is 90 degrees.

[0021] The second connecting portion 26 has a one-sided connecting portion 26a extending in one direction from the extension portion 24, and a other-sided connecting portion 26b extending in the other direction from the extension portion 24. As shown in Figure 4, the angle α between the one-sided connecting portion 26a and the extension portion 24 is 90 degrees, and the angle α between the other-sided connecting portion 26b and the extension portion 24 is also 90 degrees.

[0022] One side of the connecting portion 26a has a hook-and-loop fastener 26a1 that can be attached to the upper surface 12b of the first mattress 12. On the other hand, the other side of the connecting portion 26b has a hook-and-loop fastener 26b1 that can be attached to the upper surface 12b of the first mattress 12. The hook-and-loop fasteners 26a1 and 26b1 are provided on the same surface as the hook-and-loop fastener 22a of the first connecting portion 22. The upper surface 12b of the first mattress 12 is made of a material that the hook-and-loop fasteners 26a1 and 26b1 can attach to (for example, polyester fiber (solid cotton) or polypropylene fiber (solid cotton)).

[0023] As shown in Figure 4, in this example, the hook fasteners 26a1 and 26b1 are spaced apart with the extension portion 24 in between. However, the hook fasteners 26a1 and 26b1 may be continuous.

[0024] The third joint portion 28 extends in a bend from the extension portion 24. The third joint portion 28 is connected to the extension portion 24 and bonded to the lower surface 15a of the second mattress 15. The third joint portion 28 extends in a bend from the extension portion 24. As shown in Figure 4, the angle α between the extension portion 24 and the third joint portion 28 is greater than 0 degrees and less than 180 degrees (0° < α < 180°). In this example, the angle α is 90 degrees. That is, the second joint portion 26 and the third joint portion 28 face each other.

[0025] The third connecting portion 28 has a one-sided connecting portion 28a extending from the extension portion 24 in one direction, and a other-sided connecting portion 28b extending from the extension portion 24 in the other direction. As shown in Figure 4, the angle α between the one-sided connecting portion 28a and the extension portion 24 is 90 degrees, and the angle α between the other-sided connecting portion 28b and the extension portion 24 is also 90 degrees. That is, the one-sided connecting portion 28a is located on the back side of the one-sided connecting portion 26a. The other-sided connecting portion 28b is located on the back side of the other-sided connecting portion 26b. In other words, the mattress fixing device 20 is formed in a T shape. The mattress fixing device 20 may also be formed in a Y shape or an arrow shape. For example, the tip side of the extension portion 24 does not have to be sandwiched between the first mattress 12 and the second mattress 15.

[0026] One side connector 28a has a hook-and-loop fastener 28a1 that can be attached to the lower surface 15a of the second mattress 15. On the other hand, the other side connector 28b has a hook-and-loop fastener 28b1 that can be attached to the lower surface 15a of the second mattress 15. The hook-and-loop fasteners 28a1 and 28b1 are provided on the side of the first connector 22 opposite to the side on which the hook-and-loop fastener 22a is provided. The lower surface 15a of the second mattress 15 is made of a material that the hook-and-loop fasteners 28a1 and 28b1 can be attached to (for example, polyester fiber (solid cotton) or polypropylene fiber (solid cotton)). Note that the hook-and-loop fasteners 28a1 and 28b1 may be provided spaced apart with the extension portion 24 in between, or they may be continuous.

[0027] The second joint 26 and the third joint 28 are separated in at least part. As shown in Figure 4, the second joint 26 and the third joint 28 have a joint 29 formed by adhesive, sewing, or other means. The mattress fastener 20 is integrated at least in part by the joint 29 between the second joint 26 and the third joint 28. The second joint 26 and the third joint 28 are slidable in the separated portion.

[0028] In this example, the joint 29 extends from one side joint 26a, 28a toward the other side joint 26b, 28b at the midpoint in the short direction of the second and third joints 26, 28. In this example, the end of the joint 29 does not extend to the ends of the second and third joints 26, 28. That is, the sides of the second and third joints 26, 28 are formed to be open. The joint 29 may extend to the ends of the second and third joints 26, 28. The joint 29 may also join the one side joints 26a, 28a and the other side joints 26b, 28b separately. Furthermore, the second joint 26 and the third joint 28 may be completely integrated by adhesive, sewing, or other means.

[0029] The mattress fastener 20 and laminated mattress 10 according to the first embodiment have the configuration described above. Next, the process of fastening the first mattress 12 and the second mattress 15 with the mattress fastener 20 will be described.

[0030] First, the second mattress 15 is placed on top of the first mattress 12. In this case, the first mattress 12 and the second mattress 15 are not provided with any connecting members such as hook-and-loop fasteners. Therefore, the second mattress 15 can be easily moved (slid) on top of the first mattress 12, and thus the second mattress 15 can be easily aligned on top of the first mattress 12.

[0031] Next, with the extension portion 24 and the second and third connecting portions 26 and 28 of the mattress fastener 20 extended toward the outside of the first mattress 12, the first connecting portion 22 is connected to the lower surface 12a of the first mattress 12. Next, the extension portion 24 is extended by pulling the second and third connecting portions 26 and 28 of the mattress fastener 20. In this state, the second and third connecting portions 26 and 28 are inserted between the first mattress 12 and the second mattress 15. Then, the second connecting portion 26 is connected to the upper surface 12b of the first mattress 12, and the third connecting portion 28 is connected to the lower surface 15a of the second mattress 15. In this way, the mattress fastener 20 can fix the first mattress 12 and the second mattress 15.

[0032] The mattress fastener 20 is connected to the first mattress 12 and the second mattress 15 by having its first connecting portion 22 connected to the lower surface 12a of the first mattress 12, and its second and third connecting portions 26 and 28 sandwiched between the first mattress 12 and the second mattress 15. As a result, the mattress fastener 20 can reduce the displacement of the first mattress 12 and the second mattress 15. Furthermore, even when the laminated mattress 10 is placed on a bed (not shown) with a undulating bottom, for example, the mattress fastener 20 can reduce the displacement of the first mattress 12 and the second mattress 15 when the bottom undulates.

[0033] In this case, the mattress fastener 20 has the second joint 26 and the third joint 28 facing each other, and at least a portion of them is separated. This reduces the transmission of movement of one mattress to the other mattress at the portion where the second joint 26 and the third joint 28 are separated. For example, even if the second mattress 15 shifts, the third joint 28 slides against the second joint 26, thus reducing the transmission of movement to the first mattress 12. Furthermore, since the second joint 26 and the third joint 28 of the mattress fastener 20 are integrated at the joint 29, the strength can be improved.

[0034] Furthermore, with the mattress fastener 20 fixed to the first mattress 12 and the second mattress 15, only the extended portion 24 is exposed on the side surface 12c of the first mattress 12. This improves the appearance of the laminated mattress 10. In addition, the mattress fastener 20 has a third connecting portion 28 attached to the lower surface 15a of the second mattress 15. As a result, there is no step created on the upper surface 15b of the second mattress 15 by the mattress fastener 20, thus reducing discomfort for the user on the second mattress 15.

[0035] To separate the first mattress 12 and the second mattress 15, the first connecting part 22 is peeled off the bottom surface 12a of the first mattress 12, the second connecting part 26 is peeled off the top surface 12b of the first mattress 12, and the third connecting part 28 is peeled off the bottom surface 15a of the second mattress 15. In this way, the laminated mattress 10 can be easily fixed and separated using the mattress fasteners 20. The mattress fasteners 20 are detachable from the first mattress 12 and the second mattress 15. Therefore, the first and second mattresses 12 and 15 can be disposed of as is.

[0036] Next, Figure 5 shows a mattress fastener according to a second embodiment of the present invention. In the second embodiment, the same reference numerals are used for the same components as in the mattress fastener 20 of the first embodiment, and their descriptions are omitted.

[0037] Figure 5 is a perspective view showing a mattress fastener according to the second embodiment. The mattress fastener 20 according to the first embodiment described above was explained using the example of a case where the second and third connecting parts 26 and 28 are formed in a T-shape by having one-side connecting parts 26a and 28a and the other-side connecting parts 26b and 28b. However, as shown in Figure 5, an L-shaped mattress fastener 30 having only one-side connecting parts 26a and 28a and the other-side connecting parts 26b and 28b is also acceptable. In this example, the hook-and-loop fastener 26a1 is extended to the extension part 24. The mattress fastener 30 according to the second embodiment has the same function and effect as the mattress fastener 20 according to the first embodiment.

[0038] Next, Figures 6 and 7 show a mattress fastener according to a third embodiment of the present invention. In the third embodiment, the same reference numerals are used for the same components as in the mattress fastener 20 of the first embodiment, and their descriptions are omitted.

[0039] Figure 6 is a perspective view showing a mattress fastener according to the third embodiment. Figure 7 is a cross-sectional view showing the state in which three mattresses are secured by mattress fasteners. The mattress fastener 50 according to the third embodiment is designed to allow three mattresses to be stacked and secured together.

[0040] The first mattress 12 has a lower mattress 120 and an upper mattress 122 positioned between the lower mattress 120 and the second mattress 15. In other words, the laminated mattress 40 comprises the lower mattress 120, the upper mattress 122, the second mattress 15, and a mattress fastener 50. The mattress fastener 50 secures the lower mattress 120, the upper mattress 122, and the second mattress 15 in a laminated state.

[0041] As shown in Figure 6, the mattress fastener 50 further comprises a first connecting portion 22, an extension portion 24, a second connecting portion 26, and a third connecting portion 28, as well as a fourth connecting portion 52 and a fifth connecting portion 54 that extend from the extension portion 24 and are located between the lower mattress 120 and the upper mattress 122.

[0042] As shown in Figures 6 and 7, the fourth connecting portion 52 is located in the longitudinal center of the extension portion 24 and extends from the extension portion 24. The fourth connecting portion 52 extends from the surface of the extension portion 24 on which the hook-and-loop fastener 22a is provided.

[0043] The fourth connecting portion 52 has a hook-and-loop fastener 52a that connects to the upper surface 120a of the lower mattress 120. The fourth connecting portion 52 is detachably attached to the upper surface 120a of the lower mattress 120 by the hook-and-loop fastener 52a. The upper surface 120a of the lower mattress 120 is made of a material that the fourth connecting portion 52 can connect to. As shown in Figure 7, the lower mattress 120 is sandwiched in the thickness direction by the first connecting portion 22 and the fourth connecting portion 52.

[0044] The fifth joint 54 is located in the longitudinal center of the extension 24 and extends from the extension 24. The fifth joint 54 extends from the side of the extension 24 on which the hook-and-loop fastener 22a is provided. The fifth joint 54 is located on the back side of the fourth joint 52. That is, the fourth joint 52 and the fifth joint 54 are provided side by side in the longitudinal direction of the extension 24.

[0045] The fifth connecting portion 54 has a hook-and-loop fastener 54a that connects to the lower surface 122a of the upper mattress 122. The fifth connecting portion 54 is detachably attached to the lower surface 122a of the upper mattress 122 by the hook-and-loop fastener 54a. The lower surface 122a of the upper mattress 122 is made of a material to which the fifth connecting portion 54 can connect. As shown in Figure 7, the upper mattress 122 is sandwiched in the thickness direction by the fifth connecting portion 54 and the second connecting portion 26.

[0046] The fourth joint 52 and the fifth joint 54 are integrally formed. The back surfaces of the fourth joint 52 and the fifth joint 54 are joined together, for example, by adhesive or sewing. In other words, the back surfaces of the fourth joint 52 and the fifth joint 54 are not exposed. Because the fourth joint 52 and the fourth joint 54 are integrally formed, this integral object has hooks for the hook-and-loop fastener on both its front and back surfaces.

[0047] Furthermore, the fourth joint 52 and the fourth joint 54 may be made into a single unit by, for example, sewing or bonding their outer circumferences. This allows the mattress fastener 50 to fix the three mattresses (lower mattress 120, upper mattress 122, and second mattress 15) more integrally. Consequently, the mattress fastener 50 can suppress layer misalignment of the three mattresses. In addition, the mattress fastener 50 can improve the strength of the fourth joint 52 and the fifth joint 54.

[0048] Furthermore, the fourth joint 52 and the fifth joint 54 may be separated in at least a portion, similar to the second joint 26 and the third joint 28. That is, the fourth joint 52 and the fifth joint 54 may be joined at least in part by adhesive or sewing, or they may be joined only to the extension portion 24. This suppresses, for example, the transmission of slippage between the upper mattress 122 and the lower mattress 120.

[0049] Furthermore, in the third embodiment, the case in which both the fourth connecting portion 52 and the fifth connecting portion 54 are provided was described as an example. However, a mattress fastener may also be provided with at least one of the fourth connecting portion 52 and the fifth connecting portion 54.

[0050] Furthermore, in the third embodiment, the case in which the fourth connecting portion 52 and the fifth connecting portion 54 are provided for fixing three mattresses was described as an example. However, in order to fix four or more mattresses, for example, further connecting portions may be provided on the extension portion 24 in addition to the fourth connecting portion 52 and the fifth connecting portion 54.

[0051] Next, Figure 8 shows a mattress fastener according to a fourth embodiment of the present invention. In the fourth embodiment, the same reference numerals are used for the same components as in the mattress fastener 20 of the first embodiment, and their descriptions are omitted.

[0052] Figure 8 is a perspective view showing a mattress fastener according to the fourth embodiment. In the first embodiment described above, the mattress fastener 20 was explained using the example of a case where it is attached to the mattress by hook-and-loop fasteners. However, there are cases where it is desired to stack mattresses that have bonding surfaces made of materials that cannot be bonded by hook-and-loop fasteners. The mattress fastener 60 for stacking mattresses with such bonding surfaces will be described below.

[0053] The second mattress 15 has a urethane material at the connection surface with the third connecting part 62, for example. This urethane material does not have the function of a loop for the hook of a hook-and-loop fastener to catch on. Therefore, the mattress fastener 60 has a third connecting part 62 in addition to the first connecting part 22, the extension part 24, and the second connecting part 26.

[0054] The third joint 62 has an application area 63 to which adhesive is applied. That is, the third joint 62 does not have a hook-and-loop fastener. The application area 63 is a flat surface made of, for example, polyester, polyurethane, or a fabric made by mixing these. The third joint 62 is bonded to the lower surface 15a of the second mattress 15 by the adhesive applied to the application area 63. As shown in Figure 8, the third joint 62 has a one-sided joint 62a and a other-sided joint 62b that bend and extend from the extension 24. The application area 63 may be provided on a part of the one-sided joint 62a and the other-sided joint 62b, or it may be provided continuously across the one-sided joint 62a and the other-sided joint 62b. Alternatively, the third joint 62 may be provided on at least one of the one-sided joint 62a and the other-sided joint 62b.

[0055] The mattress fixing device 60 according to the fourth embodiment, like the mattress fixing device 20 according to the first embodiment, can integrally fix the first mattress 12 and the second mattress 15 when they are stacked together.

[0056] The embodiment may include the following configurations. (Composition 1) A mattress fixing device for fixing a first mattress and a second mattress located on top of the first mattress, The first joint and, An extension portion extending from the first joint portion, A second and a third connecting portion that bend and extend from the aforementioned extension, A mattress fastener characterized by having the following features. (Configuration 2) The first connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the first mattress. The second connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the first mattress. The mattress fastener according to configuration 1, characterized in that the third connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the second mattress. (Composition 3) The mattress fastener according to configuration 1 or 2, characterized in that the second joint and the third joint are facing each other. (Composition 4) The mattress fastener according to configuration 3, characterized in that the second joint and the third joint are separated by at least a portion thereof. (Composition 5) The second coupling portion is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, It has, The third joint is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, A mattress fastener according to any one of configurations 1 to 4, characterized by having the following features. (Composition 6) The first mattress comprises a lower mattress and an upper mattress located between the lower mattress and the second mattress. The system further comprises a fourth and a fifth connecting portion extending from the aforementioned extension and located between the lower mattress and the upper mattress, The fourth connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the lower mattress, The mattress fastener according to any one of configurations 2 to 5, characterized in that the fifth connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the upper mattress. (Composition 7) The second mattress has a bonding surface with the third bonding part made of urethane material. The first connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the first mattress. The second connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the first mattress. The mattress fastener according to configuration 1, characterized in that the third connecting portion has an application portion to which adhesive is applied. (Composition 8) First mattress and A second mattress is located on top of the first mattress, A mattress fastener for securing the first mattress and the second mattress, A laminated mattress comprising, The aforementioned mattress fastener is The first connecting portion is connected to the lower surface of the first mattress, An extension portion connected to the first joint portion and extending along the side surface of the first mattress, A second connecting portion is connected to the extension portion and bonded to the upper surface of the first mattress, A third connecting portion is connected to the extension portion and bonded to the lower surface of the second mattress, Equipped with, A laminated mattress characterized in that the second and third connecting portions extend bent from the extended portion.

[0057] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of Symbols]

[0058] 10-layer mattress 12 First Mattress 12a Bottom side 12b Top surface 12c side 15. Second Mattress 15a Bottom side 15b Top side 20 Mattress fasteners 22 1st joint 22a Folding fastener 24 Extension 26 Second joint 26a One side joint 26a1 Folding fastener 26b Other side joint 26b1 Folding fastener 28 Third joint 28a One side joint 28a1 Folding fastener 28b Other side joint 28b1 Folding fastener 29 Joint 30 Mattress fasteners 40-layer mattress 50 Mattress fasteners 52 4th joint 52a Folding fastener 54 5th joint 54a Folding fastener 60 Mattress fasteners 62 Third joint 62a One side joint 62b Other side joint 63 Coating area 120 Lower mattress 120a top side 122 Upper mattress 122a Bottom side

Claims

1. A mattress fixing device for fixing a first mattress and a second mattress located on top of the first mattress, The first joint and, An extension portion extending from the first joint portion, A second and a third connecting portion that bend and extend from the aforementioned extension, Equipped with, The second coupling portion is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, It has, The third joint is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, A mattress fastener characterized by having the following features.

2. The first connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the first mattress. The second connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the first mattress. The mattress fastener according to claim 1, characterized in that the third connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the second mattress.

3. The mattress fastener according to claim 1, characterized in that the second joint and the third joint are facing each other.

4. The mattress fastener according to claim 3, characterized in that the second joint and the third joint are separated by at least a portion.

5. The first mattress comprises a lower mattress and an upper mattress positioned between the lower mattress and the second mattress. The system further comprises a fourth connecting portion and a fifth connecting portion extending from the aforementioned extension portion and located between the lower mattress and the upper mattress, The fourth connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the lower mattress, The mattress fastener according to claim 2, characterized in that the fifth connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the upper mattress.

6. The second mattress has a bonding surface with the third bonding portion made of urethane material. The first connecting portion has a hook-and-loop fastener that can be attached to the lower surface of the first mattress. The second connecting portion has a hook-and-loop fastener that can be attached to the upper surface of the first mattress. The mattress fastener according to claim 1, characterized in that the third connecting portion has an application portion to which an adhesive is applied.

7. First mattress and A second mattress located on top of the first mattress, A mattress fastener for securing the first mattress and the second mattress, A laminated mattress comprising, The aforementioned mattress fastener is The first connecting portion is connected to the lower surface of the first mattress, An extension portion connected to the first joint portion and extending along the side surface of the first mattress, A second connecting portion is connected to the extension portion and bonded to the upper surface of the first mattress, A third connecting portion is connected to the extension portion and bonded to the lower surface of the second mattress, Equipped with, The second and third connecting portions extend bent from the extension portion, The second coupling portion is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, It has, The third joint is, A one-sided connecting portion extending in one direction from the aforementioned extension, The other connecting portion extends from the aforementioned extension portion toward the other side, A laminated mattress characterized by having the following features.

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