Mattress with replaceable pad layers

Abstract

A mattress with replaceable pad layers includes an outer cover having a bed frame and an upholstery layer; an elastic support system including a pocket-spring layer, a joining fabric layer, and an anti-slip layer; a comfort system including a plurality of pad layers and an inner cover; and a plurality of fastening devices. The upholstery layer, the elastic support system, and the pad layers all are replaceable to change their materials, so as to provide a mattress that meets different users' requirements. Each of the pad layers is provided on a bottom and a top surface with a first locating section and a first connection section, respectively, which are connectable with each other; and the fastening devices are provided on all side surfaces of the pad layers, such that the pad layers can be connected to one another in two different ways to ensure good connecting strength among them.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a mattress with replaceable pad layers, and more particularly, to a mattress consisting of a plurality of layers that can be selectively removed and replaced with other layers for the mattress to meet different users' requirements.BACKGROUND OF THE INVENTION

[0002] The conventional mattress structure internally includes a plurality of layers, which include a comfort layer, a spring-supported layer, and a base layer. The comfort layer may be made of synthetic latex, high-density support foam; the spring-supported layer may be made of polymeric foam, isolation foam, stretchable cloth, joining fabric, pocket springs or support springs; and the base layer includes an anti-slip bottom cloth. These layers are superposed to form a mattress core that meets consumer satisfaction. The mattress core is wrapped in an outer cover, which includes an upholstery layer that is in direct contact with a user's skin. The upholstery layer may be made of high-class jacquard cloth, Tencel breathable fabric, graphene fabric, cooling and hydrophilic cotton or high-functional cotton to provide users with a variety of choices in mattresses.

[0003] Conventionally, the internal layers of the mattress are joined first by sewing two adjacent layers together and then connecting all the sewed up layers sequentially, so that all the internal layers of the mattress are firmly held together without the risk of moving relative to one another easily.

[0004] Therefore, the conventional mattress is heavy and large in volume, making it uneasy for users to move or transport. Further, the conventional mattress is also subjected to many factors in use environment, such as temperature and moisture, which would lead to mildewed, molded or oxidized layers or rusted support springs of the mattress. Therefore, the conventional mattress having been used for a long time tends to become sagging and less even support. The mildewed or molded layers of the mattress will also cause skin allergy.SUMMARY OF THE INVENTION

[0005] A primary object of the present invention is to provide a mattress with replaceable pad layers, such that an elastic system, a comfort system, and an upholstery layer included in the mattress all can be independently removed and replaced with other desired layers, so that the mattress can meet different users' requirements for comfort and supporting strength.

[0006] Another object of the present invention is to provide the above mattress, a comfort system of which consists of a plurality of replaceable pad layers. These pad layers are connected to each other via connection sections and locating sections provided between any two adjacent pad layers. Further, fastening device including buckles and binding strips may be further provided on a side surface of the pad layers to provide second connection means to ensure good connecting strength among the pad layers.

[0007] A further object of the present invention is to provide the above mattress with replaceable pad layers, of which the elastic support system has a pocket-spring layer being connected to other layers using a type of natural glue. This can reduce the use of a large quantity of C-type retaining rings to hold the layers to each other as the conventional mattress does.

[0008] A still further object of the present invention is to provide the above mattress with replaceable pad layers, which uses improved ways to connect the elastic support system and the comfort system, so that a user may conveniently locating and fixing the mattress in place.

[0009] To achieve the above and other objects, the mattress with replaceable pad layer according to the present invention includes an outer cover, an elastic support system, a comfort system, and a fastening device. The outer cover includes a bed frame and an upholstery layer removably connected to a top of the bed frame, such that the upholstery layer and the bed frame together define a receiving space. The elastic support system is replaceably positioned in the receiving space. The comfort system is removably and replaceably positioned in the receiving space and connected to a top of the elastic support system. The comfort system includes an inner cover and a plurality of pad layers enclosed in the inner cover. The pad layers are connected to one another via a first connection section and a first locating section. The first connection section and the first locating section are provided on a bottom and a top of each pad layer. The first connection section on one pad layer can be connected with the first locating section on another adjacent pad layer, such that the pad layers are superposed to form a core in the inner cover.

[0010] The fastening device is provided on a side surface of the core. The fastening device includes a male fastening member and a female fastening member. The male fastening member and the female fastening member are connected to two of the pad layers. The male fastening member can be correspondingly connected to the female fastening member. Therefore, the pad layers can be connected in two connection ways. The first way is using the first connection section and the first locating section, and the second way is using the male and the female fastening members.

[0011] The elastic support system includes a pocket-spring layer and a foam case wrapping around the pocket-spring layer with a top and a bottom of the pocket-spring layer exposed from the foam case.

[0012] The elastic support system includes a joining fabric layer connected to the top of the pocket-spring layer; the joining fabric layer has a top surface provided with a second connection section and the inner cover has an underside provided with a second locating section corresponding to the second connection section; such that the comfort system is connectable to the top of the elastic support system through connection of the second connection section with the second locating section.

[0013] The elastic support system includes an anti-slip layer, which is connected to a bottom side of the pocket-spring layer. The anti-slip layer and the joining fabric layer are connected to the bottom and the top of the foam case by using a type of natural glue.

[0014] In a first preferred embodiment, the second connection section includes a plurality of negative magnetic strips and the second locating section includes a plurality of positive magnetic strips. The negative magnetic strips and the positive magnetic strips extend in two directions crossing each other, such that the comfort system can be connected to the top of the elastic support system.

[0015] In the first preferred embodiment, the male fastening member and the female fastening member are connected to an uppermost and a lowermost layer, respectively, of the pad layers. The male fastening member includes a buckle section and a binding strip section; and the binding strip section is adjustable in length to match an overall thickness of the core, such that the male and the female fastening member are adaptable to the core having different numbers of pad layers to be fastened to each other.

[0016] In a second preferred embodiment, the second connection section includes a plurality of engaging sections and the second locating section includes a plurality of pressing protrusions. The pressing protrusions respectively include an outward protruded main body and an expanded section having a profile larger than that of the main body. The engaging sections respectively define a recessed engaging space for receiving the pressing protrusion therein. The engaging space includes an engaging opening having dimensions matching that of the pressing protrusion and a dimensionally inward reduced portion having a profile smaller than that of the pressing protrusion, such that the pressing protrusions can be pushed into and fixedly received in the engaging sections.

[0017] In a third preferred embodiment, the fastening devices respectively are provided on between any two adjacent pad layers to be vertically arranged in line on all side surfaces of the core. The male fastening members are connected to the female fastening members in one-to-one correspondence, such that the male and female fastening members are adaptable to cores having different numbers of pad layers to be fastened to each other.

[0018] The present invention is characterized in that the upholstery layer, the elastic support layer, and the plurality of pad layers all can be removed and replaced with another layer made of a different material, so that the mattress with replaceable pad layer can meet different users' requirements. Besides, any two adjacent ones of the pad layers have the first connection section and the first locating section provided between them, allowing the pad layers to be connected together in a first way. On the other hand, the male fastening members and the female fastening members provide a second way of connecting the pad layers to each other. With the two connection ways, the pad layers can be connected with good connecting strength.BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein Fig. 1 is an assembled perspective view of a mattress with replaceable pad layers according to a first preferred embodiment of the present invention; Fig. 2 is an exploded view of Fig. 1; Fig. 3 is an exploded perspective view of an outer cover included in the mattress according to the first preferred embodiment of the present invention; Fig. 4 is a phantom view of a comfort system included in the mattress according to the first preferred embodiment of the present invention; Fig. 5 is a sectional view of a core and fastening devices included in the mattress according to the first preferred embodiment of the present invention; Fig. 6 shows the manner of connecting an upper surface of an elastic support system with an underside of a comfort system included in the mattress according to the first preferred embodiment of the present invention; Fig. 7 shows the manner of connecting an upper surface of an elastic support system with an underside of a comfort system included in the mattress according to a second preferred embodiment of the present invention; Fig. 8 is a fragmentary sectional view showing the connection of the elastic support system with the comfort system according to the second preferred embodiment of the present invention; and Fig. 9 is a side view showing a core and fastening devices included in the mattress according to a third preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The present invention will now be described with some preferred embodiments thereof and by referring to the accompanying drawings. For the purpose of easy to understand, elements that are the same in the preferred embodiments are denoted by the same reference numerals.

[0021] Please refer to Figs. 1, 2, and 3. A mattress 1 with replaceable pad layers 32 according to a first preferred embodiment of the present invention includes an outer cover 10, an elastic support system 20, a comfort system 30, and a plurality of fastening devices 40. The outer cover 10 includes a bed frame 11 and an upholstery layer 12. The bed frame 11 has an opening 111 formed at a top thereof and having a profile smaller than that of the bed frame 111. The upholstery layer 12 is removably connected to an inner side of the opening 111, such that the upholstery layer 12 and the bed frame 11 together define a receiving space 13. The upholstery layer 12 can be optionally replaced with another piece of upholstery layer 12 made of a different fabric material to meet the requirements of different users.

[0022] Please refer to Fig. 2. The elastic support system 20 is replaceably positioned in the receiving space 13 and includes a pocket-spring layer 21, a joining fabric layer 22, and an anti-slip layer 23. The pocket-spring layer 21 includes a plurality of pocket-springs 211 and a foam case 212. The pocket-springs 211 are arrayed into a matrix in the receiving space 13 and the foam case 212 is located around four sides of the pocket-spring layer 21. The foam case 212 has a height the same as that of the pocket-springs 211, such that the pocket-springs 211 defines a top surface and a bottom surface exposed from and flush with a top surface and a bottom surface of the foam case 212.

[0023] The anti-slip layer 23 is connected to a bottom side of the pocket-spring layer 21 to prevent the foam case 212 from reduced service life due to rubbing with the outer cover 10. The joining fabric layer 22 is connected to a top of the pocket-spring layer 21; and the anti-slip layer 23 and the joining fabric layer 22 are connected to the bottom and the top of the foam case 212 of the pocket-spring layer 21, respectively, using natural glue. Compared to the conventional mattress that uses a plurality of C-type retaining rings as fixing elements to clamp the joining fabric layer to the pocket-spring layer, the mattress using natural glue can have lower manufacturing cost and be manufactured in a more convenient manner.

[0024] Please refer to Figs. 2, 4, and 5. The comfort system 30 is replaceably positioned in the receiving space 13 and connected to a top of the elastic support system 20. The comfort system 30 includes an inner cover 31 and a plurality of pad layers 32. The pad layers 32 are replaceably enclosed in the inner cover 31 and respectively include a first connection section 321 and a first locating section 322. The first connection section 321 and the first locating section 322 are provided on a bottom and a top surface of every pad layer 32, respectively. The first connection section 321 on one pad layer 32 is correspondingly connected with the first locating section 322 on another adjacent pad layer 32, such that the plurality of pad layers 32 are superposed in the inner cover 31 to form a core 33 of the comfort system 30.

[0025] The fastening devices 40 are provided on all side surfaces of the core 33 and respectively include a male fastening member 41 and a female fastening member 42. The male and the female fastening member 41, 42 are connected to an uppermost and a lowermost layer, respectively, of the plurality of pad layers 32. The male fastening member 42 includes a buckle section 411 and a binding strip section 412. The binding strip section 412 is adjustable in length to match an overall thickness of the core 33, such that the male fastening member 41 and the female fastening member 42 are adaptable to cores 33 having different numbers of pad layers 32 to be fastened to each other.

[0026] The binding strip section 412 can be otherwise provided on the female fastening member 42. The binding strip section 412 can be made of a material with elasticity to provide further increased fastening force to the pad layers 32.

[0027] The joining fabric layer 22 is provided on a upper surface 221 with a second connection section 221a and the inner cover 31 is provided on an undersurface 311 with a second locating section 311a corresponding to the second connection section 221a, such that the comfort system 30 can be connected to the top of the elastic support system 20 through connection of the second connection section 221a with the second locating section 311a.

[0028] Please refer to Figs. 2 and 6. In the first preferred embodiment, the second connection section 221a includes a plurality of magnetic strips 51 of negative pole (S pole) and the second locating section 311a includes a plurality of magnetic strips 50 of positive pole (N pole). The positive magnetic strips 50 extend in a first direction and are spaced on the undersurface 311, while the negative magnetic strips 51 extend in a second direction perpendicular to the first direction and are spaced on the upper surface 221. When the negative magnetic strips 51 and the positive magnetic strips 50 extending in two directions crossing each other are magnetically connected to one another, the comfort system 30 can be connected to the top of the elastic support system 20 and a user may quickly mount and dismount the comfort system 30 to and from the elastic support system 20.

[0029] Please refer to Figs. 2, 7, and 8, in which a mattress according to a second preferred embodiment of the present invention is shown. The mattress of the second preferred embodiment is generally structurally similar to the mattress in the first preferred embodiment except for the second connection section 221a and the second locating section 311a. In the second preferred embodiment, the second connection section 221a includes a plurality of engaging sections 61 and the second locating section 311a includes a plurality of pressing protrusions 60. The pressing protrusions 60 respectively include an outward protruded main body 602 and an expanded section 601 having a profile larger than that of the main body 602; and the engaging sections 61 respectively define a recessed engaging space for receiving the pressing protrusion 60 therein. The engaging space includes an engaging opening 611 having dimensions matching that of the pressing protrusion 60 and a dimensionally inward reduced portion 612 having a profile smaller than that of the pressing protrusion 60, such that the pressing protrusions 60 can be pushed into and fixedly received in the engaging sections 61 in one-to-one correspondence, allowing the comfort system 30 to be connected to the top of the elastic support system 20.

[0030] The first connection section 321, the first locating section 322, the second connection section 221a, and the second locating section 311a may be otherwise in the form of a zipper tape, a hook-and-loop fastener, a Velcro tape, a button, a hook ring, a hanging hook, a threaded fastener, or a woven belt.

[0031] Please refer to Figs. 2, 4, 5, and 9, in which a mattress according to a third preferred embodiment of the present invention is shown. The third preferred embodiment is generally structurally similar to the first preferred embodiment except for the fastening devices 40. In the third preferred embodiment, the fastening devices 40 respectively are provided on between any two adjacent pad layers 32, such that the male fastening members 41 and the female fastening members 42 are vertically arranged in line on all side surfaces of the core 33. The male and the female fastening members 41, 42 are connected in one-to-one correspondence, such that the male and female fastening members are adaptable to cores having different numbers of pad layers to be fastened to each other.

[0032] In addition to the use of the first connection section 321 and the first locating section 322, the pad layers 32 of the comfort system 30 are also connectable together using the male and the corresponding female fastening members 41, 42 provided on all side surfaces of the pad layers 32. Therefore, the pad layers 32 can be connected to each other via two types of connections to ensure good connecting strength among the pad layers 32.

[0033] The present invention has been described with some preferred embodiments thereof and it is understood that many changes and modifications in the described embodiments can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.

Claims

1. A mattress with replaceable pad layers, comprising: an outer cover including a bed frame and an upholstery layer; the upholstery layer being removably connected to a top of the bed frame, such that the upholstery layer and the bed frame together define a receiving space; an elastic support system being replaceably positioned in the receiving space; a comfort system being replaceably positioned in the receiving space and connected to a top of the elastic support system; the comfort system including an inner cover and a plurality of pad layers enclosed in the inner cover; the pad layers respectively including a first connection section and a first locating section; the first connection section and the first locating section being provided on a bottom surface and a top surface of every pad layer, respectively; the first connection section on one pad layer being correspondingly connectable with the first locating section on another adjacent pad layer, such that the pad layers are superposed to form a core in the inner cover; and a fastening device being provided on a side surface of the core and including a male fastening member and a female fastening member; the male fastening member and the female fastening member being connected to two of the plurality of pad layers, and the male fastening member and the female fastening members being correspondingly connectable to each other, such that the pad layers can be connected to one another in two connection ways, one of which is the connection of the first connection section with the first locating section between any two adjacent pad layers, and the other one is the connection of the male fastening member with the female fastening member.

2. The mattress with replaceable pad layers as claimed in claim 1, wherein the elastic support system includes a pocket-spring layer and a foam case located around four sides of the pocket-spring layer, and a top surface and a bottom surface of the pocket-spring layer being exposed from the foam case.

3. The mattress with replaceable pad layers as claimed in claim 2, wherein the elastic support system includes a joining fabric layer connected to the top of the pocket-spring layer; the joining fabric layer having a top surface provided with a second connection section and the inner cover of the comfort system having an underside provided with a second locating section corresponding to the second connection section; such that the comfort system is connectable to the top of the elastic support system through connection of the second connection section with the second locating section.

4. The mattress with replaceable pad layers as claimed in claim 3, wherein the elastic support system includes an anti-slip layer, the anti-slip layer is connected to a bottom side of the pocket-spring layer; and the anti-slip layer and the joining fabric layer being connected to a bottom and a top of the foam case respectively by using a type of natural glue.

5. The mattress with replaceable pad layers as claimed in claim 3, wherein the second connection section includes a plurality of magnetic strips of negative (S) pole and the second locating section includes a plurality of magnetic strips of positive (N) pole; and the negative magnetic strips and the positive magnetic strips extending in two directions crossing each other, such that the comfort system being connected to the top of the elastic support system through magnetically connection of the second connection section with the second locating section.

6. The mattress with replaceable pad layers as claimed in claim 3, wherein the second connection section includes a plurality of engaging sections and the second locating section includes a plurality of pressing protrusions; the pressing protrusions respectively including an outward protruded main body and an expanded section having a profile larger than that of the main body; the engaging sections respectively defining a recessed engaging space for receiving the pressing protrusion therein, the engaging space including an engaging opening having dimensions matching that of the pressing protrusion and a dimensionally inward reduced portion having a profile smaller than that of the pressing protrusion, such that the pressing protrusions can be pushed into and fixedly received in the engaging sections.

7. The mattress with replaceable pad layers as claimed in claim 1, wherein the male fastening member and the female fastening member are connected to an uppermost and a lowermost layer, respectively, of the pad layers; the male fastening member including a buckle section and a binding strip section; and the binding strip section being adjustable in length to match an overall thickness of the core, such that the male fastening member and the female fastening member are adaptable to cores having different numbers of pad layers to be fastened to each other.

8. The mattress with replaceable pad layers as claimed in claim 1, wherein the fastening devices respectively are provided on between any two adjacent pad layers to be vertically arranged in line on all side surfaces of the core, and the male fastening members being connected to the female fastening members in one-to-one correspondence, such that the male fastening member and female fastening members are adaptable to cores having different numbers of pad layers to be fastened to each other.

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