Inflatable mattress manufacturing device, inflatable mattress manufacturing method using same, and inflatable mattress manufactured by manufacturing method

Abstract

The air mattress manufacturing apparatus according to the present invention comprises: a first support jig in which a central portion of a shape holding member temporarily attached to a corner side surface of a mattress body is placed on an upper surface of the first support jig by an operator; a first pressurizing unit that pressurizes a central portion of the shape holding member placed on an upper surface of the first support jig to adhere the central portion to a corner-side surface of the mattress body; and a second support jig which is adhered to the corner side surface of the mattress body by the first pressing unit, and which is folded up and down by the operator together with the corner side surface of the mattress body. An upper end portion of the shape retaining member temporarily attached to a corner upper surface of the mattress body and a lower end portion of the shape retaining member temporarily attached to a corner lower surface of the mattress body are placed on an upper surface of a second support jig by an operator; and a second pressurizing unit that pressurizes the upper end of the shape holding member placed on the upper surface of the second support jig to adhere it to the corner upper surface of the mattress body, or pressurizes the lower end of the shape holding member placed on the upper surface of the second support jig to adhere it to the corner lower surface of the mattress body, therefore, the present invention can firmly attach the shape holding members to the four corners of the mattress body and can prevent thermal injury to an operator.

Description

Technical Field

[0001] The present invention relates to an inflatable mattress manufacturing device, an inflatable mattress manufacturing method using the same, and an inflatable mattress manufactured by the manufacturing method. More specifically, the present invention relates to an inflatable mattress manufacturing device that attaches a shape-retaining member to four corner portions of a mattress body to keep the mattress body in a hexahedron shape, an inflatable mattress manufacturing method using the same, and an inflatable mattress manufactured by the manufacturing method. Background Art

[0002] Generally, a bed is composed of a bed frame and a mattress placed and installed on the upper surface of the bed frame to support a user.

[0003] Mattresses are generally made by installing multiple springs inside or made of materials with self-buffering force such as latex sponge to support the user's load with the buffering force. However, there are also mattresses that are filled with water or air inside.

[0004] Among them, an inflatable mattress filled with air inside not only has a light weight but also has the advantage of easily adjusting the strength and height by controlling the amount of injected air.

[0005] Recently, a corded inflatable mattress has been developed. In the corded inflatable mattress, an upper plate portion and a lower plate portion of the inflatable mattress are connected by multiple ropes. The corded inflatable mattress has both the buffering force of the air filled inside and the elasticity of the ropes provided inside, so it has the advantages of light weight and further enhanced buffering force.

[0006] Korean Patent Publication No. 10-1980575 (May 21, 2019) (hereinafter referred to as "the prior art") discloses a technology related to a corded inflatable mattress, "A manufacturing method of an inflatable mattress and an inflatable mattress manufactured by the method".

[0007] In the above prior art, a sealing tape is bonded to the entire edge of the interlocking lower fabric and the upper fabric of the semi-assembled inflatable mattress, and then a shape-retaining member is bonded to the outer surface of the sealing tape and the upper surface of the upper coating layer of the upper fabric from the lower surface of the lower coating layer of the lower fabric to prevent the corner portions of the inflatable mattress from deforming or wrinkling.

[0008] However, in the above prior art, since the bonding work of the shape-retaining member is manually performed by an operator, there is a problem of reduced bonding strength, and there is also a problem that the operator suffers heat damage during the process of applying hot air to the shape-retaining member to increase the bonding force of the shape-retaining member. Summary of the Invention

[0009] Technical Problem

[0010] The problem to be solved by the present invention is to provide an air mattress manufacturing apparatus that can firmly attach a shape-retaining member to four corner portions of a mattress body and can prevent an operator from suffering heat damage, an air mattress manufacturing method using the same, and an air mattress manufactured using the manufacturing method.

[0011] The problems of the present invention are not limited to the above problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

[0012] Solution

[0013] To achieve the above object, the air mattress manufacturing apparatus according to the present invention is an apparatus for separately bonding a shape-retaining member to four corner portions of a mattress body. Here, the shape-retaining member is bonded to four corner portions of the mattress body, so that the mattress body can be maintained in a hexahedron shape. The air mattress manufacturing apparatus according to the present invention includes a first support jig, a first pressing unit, a second support jig, and a second pressing unit. An operator places the central portion of the shape-retaining member temporarily attached to the corner side surface of the mattress body on the upper surface of the support jig. The first pressing unit presses the central portion of the shape-retaining member placed on the upper surface of the first support jig to bond it to the corner side surface of the mattress body. After the operator folds the central portion of the shape-retaining member bonded to the corner side surface of the mattress body together with the corner side surface of the mattress body up and down, the upper end portion of the shape-retaining member temporarily attached to the upper surface of the corner of the mattress body and the lower end portion of the shape-retaining member temporarily attached to the lower surface of the corner of the mattress body are placed on the upper surface of the second support jig. The second pressing unit presses the upper end portion of the shape-retaining member placed on the upper surface of the second support jig to bond it to the upper surface of the corner of the mattress body, or presses the lower end portion of the shape-retaining member placed on the upper surface of the second support jig to bond it to the lower surface of the corner of the mattress body.

[0014] The upper surface of the first support jig may be formed as a horizontal plane. The upper surface of the second support jig may be formed as an upwardly pointed cone.

[0015] The first pressing unit may include a first hot press and a first cold press. The first hot press may heat and press the central portion of the shape-retaining member placed on the upper surface of the first supporting jig. The first cold press may press the central portion of the shape-retaining member pressed by the first hot press without heating. The second pressing unit may include a second hot press and a second cold press. The second hot press may heat and press the upper end portion of the shape-retaining member placed on the upper surface of the second supporting jig, or heat and press the lower end portion of the shape-retaining member placed on the upper surface of the second supporting jig. The second cold press may press the upper end portion of the shape-retaining member pressed by the second hot press without heating, or may press the lower end portion of the shape-retaining member pressed by the second hot press without heating.

[0016] The first pressing unit may further be configured with a first guiding jig. A first guiding hole may be formed in the first guiding jig. The first guiding jig may move to the first supporting jig such that the upper end portion of the first supporting jig is inserted into the first guiding hole, thereby fixing the mattress body placed on the upper surface of the first supporting jig. The second pressing unit may further be configured with a second guiding jig. A second guiding hole may be formed in the second guiding jig. The second guiding jig may move to the second supporting jig such that the upper end portion of the second supporting jig is inserted into the second guiding hole, thereby fixing the mattress body placed on the upper surface of the second supporting jig.

[0017] The first guiding jig and the second guiding jig may be arranged to be movable forward, backward, upward, and downward.

[0018] The first pressing unit may further be configured with a first linear track and a first alignment slider. The first hot press and the first cold press may be mounted on the first alignment slider. The first alignment slider may slide in the left-right direction along the first linear track to align one of the first hot press and the first cold press above the first guiding hole. The second pressing unit may further be configured with a second linear track and a second alignment slider. The second hot press and the second cold press may be mounted on the second alignment slider. The second alignment slider may slide in the left-right direction along the second linear track to align one of the second hot press and the second cold press above the second guiding hole.

[0019] The method for manufacturing an inflatable mattress according to the present invention is a method of adhesively bonding shape-retaining members to four corner portions of a mattress body. Here, the shape-retaining members are adhesively bonded to the four corner portions of the mattress body, so that the mattress body can be maintained in a hexahedron shape. The method for manufacturing an inflatable mattress according to the present invention includes a first preparation step, a first bonding step, a second preparation step, and a second bonding step. In the first preparation step, an operator places a central portion of a shape-retaining member temporarily attached to a corner side surface of the mattress body on an upper surface of a first support jig. In the first bonding step, the central portion of the shape-retaining member placed on the upper surface of the first support jig is pressed by a first pressing unit to bond it to the corner side surface of the mattress body. In the second preparation step, after the operator folds the central portion of the shape-retaining member adhesively bonded to the corner side surface of the mattress body and the corner side surface of the mattress body up and down together, the operator places an upper end portion of a shape-retaining member temporarily attached to an upper corner surface of the mattress body and a lower end portion of a shape-retaining member temporarily attached to a lower corner surface of the mattress body on an upper surface of a second support jig. In the second bonding step, the upper end portion of the shape-retaining member placed on the upper surface of the second support jig is pressed by a second pressing unit to bond it to the upper corner surface of the mattress body, or the lower end portion of the shape-retaining member placed on the upper surface of the second support jig is pressed by the second pressing unit to bond it to the lower corner surface of the mattress body.

[0020] The upper surface of the first support jig may be formed as a horizontal plane. The upper surface of the second support jig may be formed as an upwardly pointed conical shape.

[0021] The first bonding step may include a 1-1 bonding step and a 1-2 bonding step. In the 1-1 bonding step, the central portion of the shape-retaining member placed on the upper surface of the first support jig may be heated and pressed by a first hot press of the first pressing unit. In the 1-2 bonding step, the central portion of the shape-retaining member pressed by the first hot press is pressed by a first cold press of the first pressing unit without heating. The second bonding step may include a 2-1 bonding step and a 2-2 bonding step. In the 2-1 bonding step, the upper end portion of the shape-retaining member placed on the upper surface of the second support jig may be heated and pressed by a second hot press of the second pressing unit, or the lower end portion of the shape-retaining member placed on the upper surface of the second support jig may be heated and pressed by the second hot press. In the 2-2 bonding step, the upper end portion of the shape-retaining member pressed by the second hot press may be pressed by a second cold press of the second pressing unit without heating, or the lower end portion of the shape-retaining member pressed by the second hot press may be pressed by the second cold press without heating.

[0022] The method for manufacturing an inflatable mattress according to the present invention may further include a first mattress body fixing step and a second mattress body fixing step. The first mattress body fixing step may be performed after the first preparation step and before the 1-1 bonding step. In the first mattress body fixing step, the first guiding jig of the first pressing unit is moved so that the upper end portion of the first supporting jig is inserted into the first guiding hole formed in the first guiding jig, thereby fixing the mattress body placed on the upper surface of the first supporting jig. The second mattress body fixing step may be performed after the second preparation step and before the 2-1 bonding step. In the second mattress body fixing step, the second guiding jig of the second pressing unit is moved so that the upper end portion of the second supporting jig is inserted into the second guiding hole formed in the second guiding jig, thereby fixing the mattress body placed on the upper surface of the second supporting jig.

[0023] The first guiding jig and the second guiding jig may be arranged to be movable forward, backward, upward, and downward.

[0024] The method for manufacturing an inflatable mattress according to the present invention may further include a first alignment step, a second alignment step, a third alignment step, and a fourth alignment step. The first alignment step may be performed after the first mattress body fixing step and before the 1-1 bonding step. In the first alignment step, the first alignment slider of the first pressing unit, on which a first hot press and a first cold press are mounted, may be slid along the first linear track of the first pressing unit in the left-right direction to align the first hot press above the first guiding hole. The second alignment step may be performed after the 1-1 bonding step and before the 1-2 bonding step. In the second alignment step, the first alignment slider may be slid along the first linear track in the left-right direction to align the first cold press above the first guiding hole. The third alignment step may be performed after the second mattress body fixing step and before the 2-1 bonding step. In the third alignment step, the second alignment slider of the second pressing unit, on which a second hot press and a second cold press are mounted, may be slid along the second linear track of the second pressing unit in the left-right direction to align the second hot press above the second guiding hole. The fourth alignment step may be performed after the 2-1 bonding step and before the 2-2 bonding step. In the fourth alignment step, the second alignment slider may be slid along the second linear track in the left-right direction to align the second cold press above the second guiding hole.

[0025] The inflatable mattress according to the present invention is manufactured by using the method for manufacturing an inflatable mattress according to the present invention.

[0026] Specific details of other embodiments are included in the detailed description and the drawings.

[0027] Beneficial effects

[0028] An inflatable mattress manufacturing apparatus according to the present invention, an inflatable mattress manufacturing method using the same, and an inflatable mattress manufactured using the manufacturing method. First, the central portion of the shape-retaining member is adhered to the four corner portions of the mattress body, and then the upper end portion or the lower end portion of the shape-retaining member is adhered to the four corner portions of the mattress body. Therefore, the shape-retaining member can be firmly attached to the four corner portions of the mattress body, and since the operator does not directly apply hot air to the shape-retaining member, there is an effect of preventing the operator from being thermally injured.

[0029] The effects of the present invention are not limited to the above effects, and other effects not mentioned will be clearly understood by those skilled in the art according to the description of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 FIG. is a view showing an inflatable mattress manufactured using an inflatable mattress manufacturing apparatus according to an embodiment of the present invention.

[0031] Figure 2 is Figure 1 a cross-sectional view of an edge portion of the shown inflatable mattress.

[0032] Figure 3 FIG. is a perspective view showing an inflatable mattress manufacturing apparatus according to an embodiment of the present invention.

[0033] Figure 4 is Figure 3 a front view of the shown first pressing unit and second pressing unit.

[0034] Figure 5 is Figure 3 a right side view of the shown first pressing unit and second pressing unit.

[0035] Figure 6 FIG. shows a state in which the upper end portion of the shape-retaining member is adhered to the upper surface of the corner of the mattress body through Figure 3 the shown second pressing unit.

[0036] Figure 7 FIG. shows a process flow diagram of adhering the central portion of the shape-retaining member to the side surface of the corner of the mattress body using Figure 3 the shown first pressing unit, and

[0037] Figure 8 FIG. shows a process flow diagram of adhering the upper end portion of the shape-retaining member to the upper surface of the corner of the mattress body or adhering the lower end portion of the shape-retaining member to the lower surface of the corner of the mattress body using Figure 3 the shown second pressing unit. DETAILED DESCRIPTION

[0038] Hereinafter, an air mattress manufacturing apparatus according to an embodiment of the present invention, an air mattress manufacturing method using the same, and an air mattress manufactured using the manufacturing method will be described with reference to the accompanying drawings.

[0039] Figure 1 FIG. is a view showing an air mattress manufactured by an air mattress manufacturing apparatus according to an embodiment of the present invention, and Figure 2 is Figure 1 a cross-sectional view of an edge portion of the shown air mattress.

[0040] Referring to Figure 1 and Figure 2 , an air mattress 10 manufactured by an air mattress manufacturing apparatus 1 according to an embodiment of the present invention (see Figure 3 ) may include: a mattress body 11 that is cut to match the size of the air mattress 10 (e.g., extra-large, large, super single size, etc.); a sealing tape 14 that is bonded to an edge portion of the mattress body 11; and a shape-retaining member 15 that is bonded to four corner portions of the mattress body 11.

[0041] The mattress body 11 may be formed into a hexahedron by the shape-retaining member 15 attached to four corner portions of the mattress body 11, and in this state, the sealing tape 14 may seal four side surfaces of the mattress body 11.

[0042] The mattress body 11 may include an upper plate portion 11A, a lower plate portion 11B, and a plurality of ropes 11C. However, the technical feature of the present invention is to bond the shape-retaining member 15 to precise positions of four corner portions of the mattress body 11 constituting the air mattress 10, and in order to achieve this technical feature, the mattress body 11 may be composed of only the upper plate portion 11A and the lower plate portion 11B without including the plurality of ropes 11C.

[0043] That is, when not having the plurality of ropes 11C, in a state where the upper plate portion 11A and the lower plate portion 11B overlap, the edges of the upper plate portion 11A and the lower plate portion 11B are sealed with the sealing tape 14, and then the shape-retaining member 15 is attached to four corner portions of the mattress body 11, thereby manufacturing the air mattress 10, and the air mattress 10 manufactured in this way can obtain a buffering force only by the pressure of the air filled inside.

[0044] In addition, even when having the plurality of ropes 11C, in a case where the upper plate portion 11A and the lower plate portion 11B overlap, the edges of the upper plate portion 11A and the lower plate portion 11B are sealed with the sealing tape 14, and then the shape-retaining member 15 is attached to four corner portions of the mattress body 11, thereby manufacturing the air mattress 10, and the air mattress 10 manufactured in this way can have a stronger buffering force through the pressure of the air filled inside and the elasticity of the plurality of ropes 11C.

[0045] The upper plate portion 11A can be formed into a rectangle, and the lower plate portion 11B can be formed into a rectangle having the same size as the upper plate portion 11A.

[0046] After the upper plate portion 11A and the lower plate portion 11B are cut to match the size of the inflatable mattress 10 (e.g., king size, queen size, super single size, etc.), they are overlapped with each other in the vertical direction, and the edges of the mattress body 11 are sealed with a sealing tape 14 to form the basic shape of the inflatable mattress 10.

[0047] Thus, after forming the basic shape of the inflatable mattress 10, the shape retaining member 15 can be adhered to the four corner portions of the mattress body 11 from the upper surface of the upper plate portion 11A to the lower surface of the lower plate portion 11B, so that the mattress body 11 has a 3D hexahedron shape, and an inflation valve 16 can be installed on one side surface to complete the inflatable mattress 10.

[0048] The shape retaining member 15 can include a central portion 15A, an upper end portion 15B, and a lower end portion 15C. The upper end portion 15B and the lower end portion 15C can have the same width, and the central portion 15A can have a width wider than that of the upper end portion 15B and the lower end portion 15C. The central portion 15A can be adhered to the corner side surface of the mattress body 11, the upper end portion 15B can be adhered to the corner upper surface of the mattress body 11, and the lower end portion 15C can be adhered to the corner lower surface of the mattress body 11.

[0049] Specifically, in this embodiment, the central portion 15A of the shape retaining member 15 is adhered to the corner side surface of the mattress body 11 prior to the upper end portion 15B and the lower end portion 15C, and then the upper end portion 15B is adhered to the corner upper surface of the mattress body 11, or the lower end portion 15C is adhered to the corner lower surface of the mattress body 11, whereby the shape retaining member 15 can be adhered to the accurate adhesion positions of the four corner portions of the mattress body 11.

[0050] Figure 3 is a perspective view showing an inflatable mattress manufacturing apparatus according to an embodiment of the present invention, Figure 4 is Figure 3 a front view of the first pressing unit and the second pressing unit shown, Figure 5 is Figure 3 a right side view of the first pressing unit and the second pressing unit shown, and Figure 6 is a view showing a state in which the upper end portion of the shape retaining member is adhered to the corner upper surface of the mattress body by Figure 3 the second pressing unit shown.

[0051] In the following description, the directions such as front, rear, upper, lower, left, and right, and the directions in related terms are the same as Figure 3 the directions shown.

[0052] AsFigures 3 to 6 As shown, the inflatable mattress manufacturing apparatus 1 according to an embodiment of the present invention may be an apparatus for bonding the shape-retaining member 15 to the four corner portions of the mattress body 11. An adhesive may be pre-coated on one surface of the shape-retaining member 15 that is to be bonded to the corner portion of the mattress body 11.

[0053] In a state where the sealing tape 14 is bonded to the edge portions of the upper plate portion 11A and the lower plate portion 11B of the mattress body 11 that overlap vertically, the inflatable mattress manufacturing apparatus 1 according to an embodiment of the present invention may cause the mattress body 11 to be maintained in a hexahedron shape by bonding the shape-retaining member 15 to the four corner portions of the mattress body 11. That is, by bonding the shape-retaining member 15 to the four corner portions of the mattress body 11, the mattress body 11 can be maintained in a hexahedron shape.

[0054] The inflatable mattress manufacturing apparatus 1 according to an embodiment of the present invention may include a first pressing unit 100, a second pressing unit 200, a first support jig 310, and a second support jig 320.

[0055] The first pressing unit 100 may be an apparatus for bonding the central portion 15A of the shape-retaining member 15 to the corner side surface of the mattress body 11, and the second pressing unit 200 may be an apparatus for bonding the upper end portion 15B of the shape-retaining member 15 to the corner upper surface of the mattress body 11, or bonding the lower end portion 15C of the shape-retaining member 15 to the corner lower surface of the mattress body 11. The first pressing unit 100 and the second pressing unit 200 may be formed in the same configuration.

[0056] The upper surfaces of the first support jig 310 and the second support jig 320 may be formed in different shapes. That is, the upper surface of the first support jig 310 may be formed as a horizontal plane, and the upper surface of the second support jig 320 may be formed as an upwardly pointed conical shape. Specifically, the first support jig 310 may be formed in a cylindrical shape, but its upper surface may be formed as a horizontal plane, and the second support jig 320 may be formed in a cylindrical shape, but its upper surface may be formed as an upwardly pointed conical shape.

[0057] Since, among the corner portions of the mattress body 11, the vertex portion where three surfaces of the portion bonded to the upper end portion or the lower end portion of the shape-retaining member 15 meet is formed in a sharp shape. Therefore, in order to fully support this vertex portion, the upper surface of the second support jig 320 may be formed as an upwardly pointed conical shape.

[0058] The operator may place the central portion 15A of the shape-retaining member 15 temporarily attached to the corner side surface of the mattress body 11 on the upper surface of the first support jig 310.

[0059] That is, after temporarily attaching the central portion 15A of the shape-retaining member 15 to the corner side surface of the mattress body 11, the operator can place the shape-retaining member 15 temporarily attached to the corner side surface of the mattress body 11 on the upper surface of the first support jig 310.

[0060] The first pressing unit 100 can press the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first support jig 310 to bond it to the corner side surface of the mattress body 11.

[0061] That is, the operator can use the first pressing unit 110 to press the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first support jig 310 to bond it to the corner side surface of the mattress body 11.

[0062] After the central portion 15A of the shape-retaining member 15 bonded to the corner side surface of the mattress body 11 by the first pressing unit 100 and the corner side surface of the mattress body 11 are folded up and down together by the operator, the operator can place the upper end portion 15B of the shape-retaining member 15 temporarily attached to the upper surface of the corner of the mattress body 11 and the lower end portion 15C of the shape-retaining member 15 temporarily attached to the lower surface of the corner of the mattress body 11 on the upper surface of the second support jig 320.

[0063] That is, after bonding the central portion 15A of the shape-retaining member 15 to the corner side surface of the mattress body 11 using the first pressing unit 100, the operator can fold the central portion 15A of the shape-retaining member 15 and the corner side surface of the mattress body 11 up and down together. Subsequently, the operator can temporarily attach the upper end portion 15B of the shape-retaining member 15 to the upper surface of the corner of the mattress body 11 and temporarily attach the lower end portion 15C of the shape-retaining member 15 to the lower surface of the corner of the mattress body 11. Subsequently, the operator can place the upper end portion 15B of the shape-retaining member 15 temporarily attached to the upper surface of the corner of the mattress body 11 and the lower end portion 15C of the shape-retaining member 15 temporarily attached to the lower surface of the corner of the mattress body 11 on the upper surface of the second support jig 320.

[0064] The second pressing unit 200 can press the upper end portion 15B of the shape-retaining member 15 placed on the upper surface of the second support jig 320 to bond it to the upper surface of the corner of the mattress body 11, or press the lower end portion 15C of the shape-retaining member 15 placed on the upper surface of the second support jig 320 to bond it to the lower surface of the corner of the mattress body 11.

[0065] That is to say, the operator can use the second pressing unit 200 to press the upper end portion 15B of the shape-retaining member 15 placed on the upper surface of the second supporting jig 320, so as to bond it to the upper corner surface of the mattress body 11. Alternatively, the operator can use the second pressing unit 200 to press the lower end portion 15C of the shape-retaining member 15 placed on the upper surface of the second supporting jig 320, so as to bond it to the lower corner surface of the mattress body 11.

[0066] Specifically, after the operator uses the second pressing unit 200 to press the upper end portion 15B of the shape-retaining member 15 placed on the upper surface of the second supporting jig 320, so as to bond it to the upper corner surface of the mattress body 11, the operator can turn the corner portion of the mattress body 11 upside down so that the lower end portion 15C of the shape-retaining member 15 faces upward, and then the operator can use the second pressing unit 200 to press the lower end portion 15C of the shape-retaining member 15 placed on the upper surface of the second supporting jig 320, so as to bond it to the lower corner surface of the mattress body 11.

[0067] The first pressing unit 100 may include a first hot press 110 and a first cold press 120.

[0068] The first hot press 110 can heat and press the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first supporting jig 310.

[0069] The first hot press 110 may include a cylinder 111 and a rod 112. The rod 112 can be pushed out from inside the cylinder 111 through the lower end of the cylinder 111, or introduced into the inside of the cylinder 111. The rod 112 can move up and down hydraulically within the cylinder 111.

[0070] The cylinder 111 may form the upper part of the first hot press 110, and the rod 112 may form the lower part of the first hot press 110. The lower surface of the rod 112 may be the substantial part for heating and pressing the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first supporting jig 310. A plurality of rod-shaped heaters heated by electricity may be installed at the lower end of the rod 112 in an inserted manner.

[0071] In the following description, the lower surface of the first hot press 110 may refer to the lower surface of the rod 112.

[0072] The first cold press 120 can press the central portion 15A of the shape-retaining member 15 pressed by the first hot press 110 without heating. That is, the central portion 15A of the shape-retaining member 15 can be cooled by the first cold press 120, so as to complete the bonding with the side surface of the corner of the mattress body 11.

[0073] The first cold press 120 may include a cylinder 121 and a rod 122. The rod 122 may be pushed out from inside the cylinder 121 through the lower end of the cylinder 121, or introduced inside the cylinder 121. The rod 122 may move up and down hydraulically within the cylinder 121.

[0074] The cylinder 121 may form the upper part of the first cold press 120, and the rod 122 may form the lower part of the first cold press 120. The lower surface of the rod 122 may be the substantial part that presses the central part 15A of the shape-holding member 15 pressed by the first hot press 110 without heating.

[0075] In the following description, the lower surface of the first cold press 120 may also represent the lower surface of the rod 122.

[0076] The upper surface of the first support jig 310 is formed as a horizontal plane. Therefore, the lower surface of the rod 112, which is the lower surface of the first hot press 110, may be formed as a horizontal plane corresponding to the upper surface of the first support jig 310, and the lower surface of the rod 122, which is the lower surface of the first cold press 120, may also be formed as a horizontal plane corresponding to the upper surface of the first support jig 310.

[0077] The second pressing unit 200 may include a second hot press 210 and a second cold press 220.

[0078] The second hot press 210 may heat and press the upper end portion 15B of the shape-holding member 15 placed on the upper surface of the second support jig 320, or heat and press the lower end portion 15C of the shape-holding member 15 placed on the upper surface of the second support jig 320.

[0079] The second hot press 210 may include a cylinder 211 and a rod 212. The rod 212 may be pushed out from inside the cylinder 211 through the lower end of the cylinder 211, or introduced inside the cylinder 211. The rod 212 may move up and down hydraulically within the cylinder 211.

[0080] The cylinder 211 may form the upper part of the second hot press 210, and the rod 212 may form the lower part of the second hot press 210. The lower surface of the rod 212 may be the substantial part that heats and presses the upper end portion 15B of the shape-holding member 15 placed on the upper surface of the second support jig 320, or heats and presses the lower end portion 15C of the shape-holding member 15 placed on the upper surface of the second support jig 320. A plurality of rod-shaped heaters heated by electricity may be installed at the lower end portion of the rod 212 in an inserted manner.

[0081] In the following description, the lower surface of the second hot press 210 may represent the lower surface of the rod 212.

[0082] The second cold press 220 can press the upper end portion 15B of the shape-retaining member 15 pressed by the second hot press 210 without heating, or can press the lower end portion 15C of the shape-retaining member 15 pressed by the second hot press 210 without heating. That is, the upper end portion 15B of the shape-retaining member 15 can be cooled by the second cold press 220 to complete the bonding with the upper surface of the corner of the mattress body 11, and the lower end portion 15C of the shape-retaining member 15 can be cooled by the second cold press 220 to complete the bonding with the lower surface of the corner of the mattress body 11.

[0083] The second cold press 220 may include a cylinder 221 and a rod 222. The rod 222 can be pushed out from inside the cylinder 221 through the lower end of the cylinder 221, or introduced into the inside of the cylinder 221. The rod 222 can move up and down hydraulically within the cylinder 221.

[0084] The cylinder 221 may form the upper part of the second cold press 220, and the rod 222 may form the lower part of the second cold press 220. The lower surface of the rod 222 may be the substantial part for pressing the upper end portion 15B of the shape-retaining member 15 pressed by the second hot press 210 without heating, or for pressing the lower end portion 15C of the shape-retaining member 15 pressed by the second hot press 210 without heating.

[0085] In the following description, the lower surface of the second cold press 220 may also represent the lower surface of the rod 222.

[0086] The upper surface of the second support jig 320 is formed into an upwardly pointed conical shape. Therefore, the lower surface of the rod 212, which is the lower surface of the second hot press 210, may form a conical groove corresponding to the upper surface of the second support jig 320, and the lower surface of the rod 222, which is the lower surface of the second cold press 220, may also form a conical groove corresponding to the upper surface of the second support jig 320.

[0087] The first pressing unit 100 may further include a first guiding jig 130. The first guiding jig 130 may be arranged to be movable forward, backward, upward, and downward. The first guiding jig 130 can move forward, backward, upward, and downward under the drive of a motor. In a state where the central portion 15A of the shape-retaining member 15 is placed on the upper surface of the first support jig 310, the first guiding jig 130 is moved forward and then downward by the driving force of the motor to fix the corner portion of the mattress body 11 placed on the upper surface of the first support jig 310.

[0088] A first guiding fixture 130 may be formed with a first guiding hole 135. The first guiding hole 135 may be formed as a circle corresponding to the shape of the outer peripheral surface of the first supporting fixture 310. The first guiding fixture 130 may be moved to the first supporting fixture 310 such that the upper end portion of the first supporting fixture 310 is inserted into the first guiding hole 135, thereby fixing the mattress body 11 placed on the upper surface of the first supporting fixture 310.

[0089] The second pressing unit 200 may further include a second guiding fixture 230. The second guiding fixture 230 may be arranged to be movable forward, backward, upward, and downward. The second guiding fixture 230 may be moved forward, backward, upward, and downward under the drive of a motor. In a state where the upper end portion 15B and the lower end portion 15C of the shape holding member 15 are placed on the upper surface of the second supporting fixture 320, the second guiding fixture 230 is moved forward and then downward by the driving force of the motor, thereby fixing the corner portion of the mattress body 11 placed on the upper surface of the second supporting fixture 320.

[0090] A second guiding hole 235 may be formed in the second guiding fixture 230. The second guiding hole 235 may be formed as a circle corresponding to the shape of the outer peripheral surface of the second supporting fixture 320. The second guiding fixture 230 may be moved to the second supporting fixture 320 such that the upper end portion of the second supporting fixture 320 is inserted into the second guiding hole 235, thereby fixing the mattress body 11 placed on the upper surface of the second supporting fixture 320.

[0091] The first pressing unit 100 may further include a first linear rail 140 and a first alignment slider 150.

[0092] The first linear rail 140 may include a pair of first linear rails 140 spaced apart from each other in the front - rear direction and arranged in parallel. The pair of first linear rails 140 may be formed to extend in the left - right direction.

[0093] A first hot press 110 and a first cold press 120 may be mounted on the first alignment slider 150. The cylinder 111 of the first hot press 110 and the cylinder 121 of the first cold press 120 may be arranged to protrude above the first alignment slider 150, and the rod 112 of the first hot press 110 and the rod 122 of the first cold press 120 may be arranged to protrude below the first alignment slider 150 through holes formed in the first alignment slider 150.

[0094] The first alignment slider 150 may slide in the left - right direction along the first linear rail 140 under the drive of a motor. The first alignment slider 150 may slide in the left - right direction along the first linear rail 140 to align one of the first hot press 140 and the first cold press 150 above the first guiding hole 135. As Figure 3The state shown is the state where the first alignment slider 150 slides rightward along the first linear track 140, which can be the state where the first hot press 140 is aligned above the first guiding hole 135. In the state as Figure 3 shown, the first alignment slider 150 can slide leftward along the first linear track 140, so that the first cold press 150 is aligned above the first guiding hole 135.

[0095] The second pressing unit 200 can further include a second linear track 240 and a second alignment slider 250.

[0096] The second linear track 240 can include a pair of second linear tracks 240 that are spaced apart from each other in the front - rear direction and arranged in parallel. The pair of second linear tracks 240 can be formed to extend in the left - right direction.

[0097] The second hot press 210 and the second cold press 220 can be mounted on the second alignment slider 250. The cylinder 211 of the second hot press 210 and the cylinder 221 of the second cold press 220 can be arranged to protrude above the second alignment slider 250, and the rod 212 of the second hot press 210 and the rod 222 of the second cold press 220 can be arranged to protrude below the second alignment slider 250 through the holes formed in the second alignment slider 250.

[0098] The second alignment slider 250 can slide in the left - right direction along the second linear track 240 under the drive of a motor. The second alignment slider 250 can slide in the left - right direction along the second linear track 240 to align one of the second hot press 210 and the second cold press 220 above the second guiding hole 235. As Figure 3 shown, the state is the state where the second alignment slider 250 slides rightward along the second linear track 240, which can be the state where the second hot press 240 is aligned above the second guiding hole 235. In the state as Figure 3 shown, the second alignment slider 250 can slide leftward along the second linear track 240, so that the second cold press 250 is aligned above the second guiding hole 235.

[0099] Figure 7 is a flowchart showing the process of bonding the central portion of the shape - holding member to the corner side surface of the mattress body using the Figure 3 first pressing unit shown.

[0100] Referring to Figure 7 , the method of bonding the central portion 15A of the shape - holding member 15 to the corner side surface of the mattress body 11 can include a first preparation step S110 and first bonding steps S140, S160.

[0101] In the first preparation step S110, the operator can place the central portion 15A of the shape-retaining member 15 temporarily attached to the corner side surface of the mattress body 11 on the upper surface of the first support jig 310.

[0102] Specifically, in the first preparation step S110, the operator can temporarily attach the central portion 15A of the shape-retaining member 15 to the corner side surface of the mattress body 11, and then place the central portion 15A of the shape-retaining member 15 temporarily attached to the corner side surface of the mattress body 11 on the upper surface of the first support jig 310.

[0103] In the first bonding steps S140, S160, the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first support jig 310 is pressed by the first pressing unit 100 to bond it to the corner side surface of the mattress body 11.

[0104] The first bonding steps S140, S160 may include a first-stage bonding step S140 and a second-stage bonding step S160.

[0105] In the first-stage bonding step S140, the central portion 15A of the shape-retaining member 15 placed on the upper surface of the first support jig 310 can be heated and pressed by the first hot press 110 of the first pressing unit 100. In this way, the adhesive pre-coated on the bonding surface of the central portion 15A of the shape-retaining member 15 is melted by the heat of the first hot press 110, so that the central portion 15A of the shape-retaining member 15 can be bonded to the corner side surface of the mattress body 11.

[0106] In the second-stage bonding step S160, the central portion 15A of the shape-retaining member 15 pressed by the first hot press 110 can be pressed by the first cold press 120 of the first pressing unit 100 without heating. In this way, as the adhesive melted by the heat of the first hot press 110 cools, the central portion 15A of the shape-retaining member 15 can be completely bonded to the corner side surface of the mattress body 11.

[0107] The first mattress body fixing step S120 can be performed after the first preparation step S110 and before the first-stage bonding step S140.

[0108] In the first mattress body fixing step S120, the first guide jig 130 of the first pressing unit 100 can be moved so that the upper end portion of the first support jig 310 is inserted into the first guide hole 135 formed in the first guide jig 130, thereby fixing the mattress body 11 placed on the upper surface of the first support jig 310.

[0109] The first alignment step S130 can be performed after the first mattress body fixing step S120 and before the 1-1 bonding step S140.

[0110] In the first alignment step S130, the first alignment slider 150 of the first pressing unit 100, on which the first hot press 110 and the first cold press 210 are mounted, can be slid in the left-right direction along the first linear track 140 of the first pressing unit 100 to align the first hot press 110 above the first guiding hole 135 of the first guiding jig 130. Furthermore, in the 1-1 bonding step S140, the rod 112 of the first hot press 110 can be moved downward so as to accurately press the central portion 15A of the shape-retaining member 15.

[0111] The second alignment step S150 can be performed after the 1-1 bonding step S140 and before the 1-2 bonding step S160.

[0112] In the second alignment step S150, the first alignment slider 150 can be slid in the left-right direction along the first linear track 140 to align the first cold press 120 above the first guiding hole 135 of the first guiding jig 130. Furthermore, in the 1-2 bonding step S160, the rod 122 of the first cold press 120 can be moved downward so as to accurately press the central portion 15A of the shape-retaining member 15.

[0113] Figure 8 is a flowchart showing the process of bonding the upper end portion of the shape-retaining member to the upper corner surface of the mattress body or bonding the lower end portion of the shape-retaining member to the lower corner surface of the mattress body using the Figure 3 second pressing unit shown.

[0114] Referring to Figure 8 , the method of bonding the upper end portion 15B of the shape-retaining member 15 to the upper corner surface of the mattress body 11 or bonding the lower end portion 15C of the shape-retaining member 15 to the lower corner surface of the mattress body 11 can include a second preparation step S210 and second bonding steps S240, S260.

[0115] In the second preparation step S210, after the operator folds the central portion 15A of the shape-retaining member 15 bonded to the corner side surface of the mattress body 11 by the first pressing unit 100 and the corner side surface of the mattress body 11 up and down together, the operator places the upper end portion 15B of the shape-retaining member 15 temporarily attached to the upper corner surface of the mattress body 11 and the lower end portion 15C of the shape-retaining member 15 temporarily attached to the lower corner surface of the mattress body 11 on the upper surface of the second supporting jig 320.

[0116] Specifically, in the second preparation step S210, the operator can fold the central portion of the shape retention member adhesively attached to the corner side surface of the mattress body by the first pressing unit and the corner side surface of the mattress body 11 up and down together, then temporarily attach the central portion 15A of the shape retention member 15 to the corner side surface of the mattress body 11, then temporarily attach the upper end portion 15B of the shape retention member 15 to the upper surface of the corner of the mattress body 11, and temporarily attach the lower end portion 15C of the shape retention member 15 to the lower surface of the corner of the mattress body 11, and then place the upper end portion 15B of the shape retention member 15 temporarily attached to the upper surface of the corner of the mattress body 11 and the lower end portion 15C of the shape retention member 15 temporarily attached to the lower surface of the corner of the mattress body 11 on the upper surface of the second support jig 320.

[0117] In the second adhesion steps S240, S260, the second pressing unit 200 can be used to press the upper end portion 15B of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the upper surface of the corner of the mattress body 11, or the second pressing unit 200 can be used to press the lower end portion 15C of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the lower surface of the corner of the mattress body 11.

[0118] In the second adhesion steps S240, S260, the operator can use the second pressing unit 200 to press the upper end portion 15B of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the upper surface of the corner of the mattress body 11, then turn the corner portion of the mattress body 11 up and down, and use the second pressing unit 200 to press the lower end portion 15C of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the lower surface of the corner of the mattress body 11. Of course, in the second adhesion steps S240, S260, the operator can use the second pressing unit 200 to press the lower end portion 15C of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the lower surface of the corner of the mattress body 11, then turn the corner portion of the mattress body 11 up and down, and then use the second pressing unit 200 to press the upper end portion 15B of the shape retention member 15 placed on the upper surface of the second support jig 320, so as to adhere it to the upper surface of the corner of the mattress body 11.

[0119] The second adhesion steps S240, S260 may include a 2-1 adhesion step S240 and a 2-2 adhesion step S260.

[0120] In the second bonding step S240, the upper end portion 15B of the shape retaining member 15 placed on the upper surface of the second support jig 320 can be heated and pressed by the second hot press 210 of the second pressing unit 200, or the lower end portion 15C of the shape retaining member 15 placed on the upper surface of the second support jig 320 can be heated and pressed by the second hot press 210. When the upper end portion 15B of the shape retaining member 15 placed on the upper surface of the second support jig 320 is heated and pressed by the second hot press 210, the adhesive pre-coated on the bonding surface of the upper end portion 15B of the shape retaining member 15 is melted by the heat of the second hot press 210, so that the upper end portion 15B of the shape retaining member 15 can be bonded to the upper corner surface of the mattress body 11. Alternatively, when the lower end portion 15C of the shape retaining member 15 placed on the upper surface of the second support jig 320 is heated and pressed by the second hot press 210, the adhesive pre-coated on the bonding surface of the lower end portion 15C of the shape retaining member 15 is melted by the heat of the second hot press 210, so that the lower end portion 15C of the shape retaining member 15 can be bonded to the lower corner surface of the mattress body 11.

[0121] In the second bonding step S260, the upper end portion 15B of the shape retaining member 15 pressed by the second hot press 210 can be pressed by the second cold press 220 of the second pressing unit 200 without heating, or the lower end portion 15C of the shape retaining member 15 pressed by the second hot press 210 can be pressed by the second cold press 220 without heating. When the upper end portion 15B of the shape retaining member 15 pressed by the second hot press 210 is pressed by the second cold press 220 without heating, as the adhesive melted by the heat of the second hot press 210 cools, the upper end portion 15B of the shape retaining member 15 can be completely bonded to the upper corner surface of the mattress body 11. Alternatively, when the lower end portion 15C of the shape retaining member 15 pressed by the second hot press 210 is pressed by the second cold press 220 without heating, as the adhesive melted by the heat of the second hot press 210 cools, the lower end portion 15C of the shape retaining member 15 can be completely bonded to the lower corner surface of the mattress body 11.

[0122] The second mattress body fixing step S220 can be performed after the second preparation step S210 and before the second bonding step S240.

[0123] In the second mattress body fixing step S220, the second guiding jig 230 of the second pressing unit 200 can be moved so that the upper end portion of the second supporting jig 320 is inserted into the second guiding hole 235 formed in the second guiding jig 230, thereby fixing the mattress body 11 placed on the upper surface of the second supporting jig 320.

[0124] The third alignment step S230 can be performed after the second mattress body fixing step S220 and before the 2-1 bonding step S240.

[0125] In the third alignment step S230, the second alignment slider 250 of the second pressing unit 200, on which the second hot press 210 and the second cold press 220 are mounted, can be slid in the left-right direction along the second linear track 240 of the second pressing unit 200 to align the second hot press 210 above the second guiding hole 235 of the second guiding jig 230. Further, in the 2-1 bonding step S240, the rod 212 of the second hot press 210 can be moved downward to accurately press the upper end portion 15B of the shape retaining member 15 or accurately press the lower end portion 15C of the shape retaining member 15.

[0126] The fourth alignment step S250 can be performed after the 2-1 bonding step S240 and before the 2-2 bonding step S260.

[0127] In the fourth alignment step S250, the second alignment slider 250 can be slid in the left-right direction along the second linear track 240 to align the second cold press 220 above the second guiding hole 235 of the second guiding jig 230. Further, in the 2-2 bonding step S260, the rod 222 of the second cold press 220 can be moved downward to accurately press the upper end portion 15B of the shape retaining member 15 or accurately press the lower end portion 15C of the shape retaining member 15.

[0128] As described above, in the air mattress manufacturing apparatus 1 according to an embodiment of the present invention, the air mattress manufacturing method using the same, and the air mattress 10 manufactured using the manufacturing method, first, the central portion 15A of the shape retaining member 15 is bonded to the four corner portions of the mattress body 11, and then the upper end portion 15B or the lower end portion 15C of the shape retaining member 15 is bonded to the four corner portions of the mattress body 11. Therefore, the shape retaining member 15 can be firmly attached to the four corner portions of the mattress body 11, and since the operator does not directly blow hot air onto the shape retaining member 15, heat damage to the operator can be prevented.

Claims

1. An inflatable mattress manufacturing device for bonding a shape-retaining member to four corner portions of a mattress body, wherein the shape-retaining member is bonded to the corner portions of the mattress body to hold the mattress body in a hexahedron shape. The inflatable mattress manufacturing device includes: A first support jig, on the upper surface of which the central portion of the shape-retaining member temporarily attached to the corner side surface of the mattress body is placed by an operator; A first pressing unit that presses the central portion of the shape-retaining member placed on the upper surface of the first support jig to bond the central portion to the corner side surface of the mattress body; A second support jig, on the upper surface of which the upper end portion of the shape-retaining member temporarily attached to the upper surface of the corner of the mattress body and the lower end portion of the shape-retaining member temporarily attached to the lower surface of the corner of the mattress body are placed by an operator after the central portion of the shape-retaining member bonded to the corner side surface of the mattress body by the first pressing unit and the corner side surface of the mattress body are folded up and down together by the operator; And A second pressing unit that presses the upper end portion of the shape-retaining member placed on the upper surface of the second support jig to bond the upper end portion to the upper surface of the corner of the mattress body, or presses the lower end portion of the shape-retaining member placed on the upper surface of the second support jig to bond the lower end portion to the lower surface of the corner of the mattress body.

2. The inflatable mattress manufacturing device according to claim 1, wherein The upper surface of the first support jig is formed as a horizontal plane, and The upper surface of the second support jig is formed as an upwardly pointed cone.

3. The inflatable mattress manufacturing device according to claim 1, wherein The first pressing unit includes: A first hot press that heats and presses the central portion of the shape-retaining member placed on the upper surface of the first support jig; and A first cold press that presses the central portion of the shape-retaining member pressed by the first hot press without heating, The second pressing unit includes: A second hot press that heats and presses the upper end portion of the shape-retaining member placed on the upper surface of the second support jig, or heats and presses the lower end portion of the shape-retaining member placed on the upper surface of the second support jig; and A second cold press that presses the upper end portion of the shape-retaining member pressed by the second hot press without heating, or presses the lower end portion of the shape-retaining member pressed by the second hot press without heating.

4. The inflatable mattress manufacturing device according to claim 3, wherein The first pressing unit further includes: The first guiding fixture, on which a first guiding hole is formed, and the first guiding fixture moves to the first supporting fixture, such that the upper end portion of the first supporting fixture is inserted into the first guiding hole, thereby fixing the mattress body placed on the upper surface of the first supporting fixture, and The second pressing unit further includes: The second guiding fixture, on which a second guiding hole is formed, and the second guiding fixture moves to the second supporting fixture, such that the upper end portion of the second supporting fixture is inserted into the second guiding hole, thereby fixing the mattress body placed on the upper surface of the second supporting fixture.

5. The air mattress manufacturing device according to claim 4, wherein, The first guiding fixture and the second guiding fixture are arranged to be movable forward, backward, upward, and downward.

6. The air mattress manufacturing device according to claim 4, wherein, The first pressing unit further includes: A first linear track; and A first alignment slider, on which the first hot press and the first cold press are mounted, and the first alignment slider slides in the left - right direction along the first linear track to align one of the first hot press and the first cold press above the first guiding hole, and The second pressing unit further includes: A second linear track; and A second alignment slider, on which the second hot press and the second cold press are mounted, and the second alignment slider slides in the left - right direction along the second linear track to align one of the second hot press and the second cold press above the second guiding hole.

7. An air mattress manufacturing method for bonding shape - retaining members to four corner portions of a mattress body, wherein the shape - retaining members are bonded to the corner portions of the mattress body to hold the mattress body as a hexahedron, the air mattress manufacturing method includes: A first preparation step, in which an operator places the central portion of the shape - retaining member temporarily attached to the corner side surface of the mattress body on the upper surface of the first supporting fixture; A first bonding step, in which the central portion of the shape - retaining member placed on the upper surface of the first supporting fixture is pressed by the first pressing unit to bond the central portion to the corner side surface of the mattress body; A second preparation step, after the operator folds the central portion of the shape - retaining member bonded to the corner side surface of the mattress body and the corner side surface of the mattress body up and down together, the operator places the upper end portion of the shape - retaining member temporarily attached to the upper corner surface of the mattress body and the lower end portion of the shape - retaining member temporarily attached to the lower corner surface of the mattress body on the upper surface of the second supporting fixture; And Second bonding step: Press the upper end portion of the shape-retaining member placed on the upper surface of the second support jig by the second pressing unit to bond the upper end portion to the upper surface of the corner of the mattress body, or press the lower end portion of the shape-retaining member placed on the upper surface of the second support jig by the second pressing unit to bond the lower end portion to the lower surface of the corner of the mattress body.

8. The method for manufacturing an inflatable mattress according to claim 7, wherein the upper surface of the first support jig is formed as a horizontal plane, and the upper surface of the second support jig is formed as an upwardly pointed conical shape.

9. The method for manufacturing an inflatable mattress according to claim 7, wherein the first bonding step includes: Step 1-1 bonding: Heat and press the central portion of the shape-retaining member placed on the upper surface of the first support jig by the first hot press of the first pressing unit; and Step 1-2 bonding: Press the central portion of the shape-retaining member pressed by the first hot press by the first cold press of the first pressing unit without heating, and the second bonding step includes: Step 2-1 bonding: Heat and press the upper end portion of the shape-retaining member placed on the upper surface of the second support jig by the second hot press of the second pressing unit, or heat and press the lower end portion of the shape-retaining member placed on the upper surface of the second support jig by the second hot press; and Step 2-2 bonding: Press the upper end portion of the shape-retaining member pressed by the second hot press by the second cold press of the second pressing unit without heating, or press the lower end portion of the shape-retaining member pressed by the second hot press by the second cold press without heating.

10. The method for manufacturing an inflatable mattress according to claim 9, further comprising: First mattress body fixing step: After the first preparation step and before the step 1-1 bonding, move the first guiding jig of the first pressing unit so that the upper end portion of the first support jig is inserted into the first guiding hole formed in the first guiding jig, thereby fixing the mattress body placed on the upper surface of the first support jig; and Second mattress body fixing step: After the second preparation step and before the step 2-1 bonding, move the second guiding jig of the second pressing unit so that the upper end portion of the second support jig is inserted into the second guiding hole formed in the second guiding jig, thereby fixing the mattress body placed on the upper surface of the second support jig.

11. The method for manufacturing an inflatable mattress according to claim 10, wherein the first guiding jig and the second guiding jig are arranged to be movable forward, backward, upward, and downward.

12. The method for manufacturing an inflatable mattress according to claim 10, further comprising: First alignment step, after the first mattress body fixing step and before the 1-1 bonding step, slide the first alignment slider of the first pressing unit, on which the first hot press and the first cold press are mounted, along the first linear track of the first pressing unit in the left-right direction to align the first hot press above the first guiding hole; Second alignment step, after the 1-1 bonding step and before the 1-2 bonding step, slide the first alignment slider along the first linear track in the left-right direction to align the first cold press above the first guiding hole; Third alignment step, after the second mattress body fixing step and before the 2-1 bonding step, slide the second alignment slider of the second pressing unit, on which the second hot press and the second cold press are mounted, along the second linear track of the second pressing unit in the left-right direction to align the second hot press above the second guiding hole; And Fourth alignment step, after the 2-1 bonding step and before the 2-2 bonding step, slide the second alignment slider along the second linear track in the left-right direction to align the second cold press above the second guiding hole.

13. An inflatable mattress manufactured by using the inflatable mattress manufacturing method according to any one of claims 7 to 12.

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