JP5308905B2 - Folding spring mattress - Google Patents

Description

  The present invention relates to a structure of a foldable spring mattress, that is, a foldable mattress incorporating a spring.

  For example, a large number of drum-shaped coil springs are arranged side by side along a plane orthogonal to the compression direction, and these are connected by a helical spring (helical wire) made of a spiral wire to form a spring unit, and the entire surface thereof In a Bonnell coil mattress having a structure coated with an exterior body such as a cloth, as a means for reinforcing a coil spring located at the peripheral portion and maintaining the overall outer shape, a predetermined amount is provided along the peripheral portion on the upper surface side and the lower surface side. Metal frame lines having the following rigidity are provided.

  On the other hand, there are various sizes of spring mattresses, such as single size and double size, but even the smallest single size mattress is naturally large enough to sleep one adult. For this reason, for example, when a mattress is carried into a room such as an apartment, the carrying-in work from the entrance may be difficult or may be impossible depending on the size. In this case, if the mattress can be folded, the carrying-in operation can be facilitated. However, in the Bonnell coil mattress and the like, the shape-retaining metal frame line is provided at the peripheral portion, so that Can't fold.

  As a spring mattress that is provided with a frame line for shape retention as described above and can be folded, for example, a spring mattress described in Patent Document 1 is known. In this case, the entire mattress is composed of first to third small mattresses and can be folded into three. Each of the small mattresses in this mattress includes a spring unit in which a large number of coil springs are connected in a flat plate shape and frame lines are provided on the peripheral edges of the upper and lower surfaces, a urethane foam polymerized on the upper and lower surfaces of the spring unit, etc. And an exterior body coated with a polymer of the padding and the spring unit. Then, the first and second small mattresses are connected by the upper mirror provided on the upper surface side, and the second and third small mattresses are connected by the lower mirror provided on the lower surface side, Folding is possible at the boundary between the first small mattress and the second small mattress and at the boundary between the second small mattress and the third small mattress. According to this, although it is a structure having a spring and a shape retaining frame inside, it can be folded into three, so that the entire mattress can be made compact by folding, and therefore the carrying-in work can be facilitated. Can also be realized.

Utility Model Registration No. 2553748 (paragraph numbers 0009 to 0012, FIGS. 1 to 3)

  However, in the mattress described in Patent Document 1, a structure in which frame lines are provided on the upper and lower peripheral edges of the spring units constituting each small mattress, in other words, along the periphery of the upper surface and the lower surface of each spring unit. Since each frame-shaped metal wire is provided with a frame-shaped metal wire, a part of the frame line is located along a boundary portion between adjacent small mattresses. As a result, when lying on the mattress, the presence of the frame line portion is sensed, giving a gritty feeling, that is, a problem that the sleeping comfort is deteriorated occurs.

  The present invention has been made in view of the circumstances as described above, and provides a foldable spring mattress that can be made compact by being folded during transportation, loading and storage, and which can provide a good sleeping comfort. Objective.

In order to achieve the above object, the present invention has a plurality of coil springs 3 arranged vertically and horizontally along a plane orthogonal to the compression direction, and upper and lower ends of the coil springs 3 adjacent to each other in the full length direction and the width direction of the mattress. a spring unit 4 to each other are connected by Jerica Angeles pulling 5, a rectangular parallelepiped mattress structure 2 formed by and a exterior body 6 covering the entire surface of the spring unit 4, the mattress structure A foldable spring mattress in which two pieces 2 are connected and foldable at the connecting portion 7 is configured as follows.

That is, the mattress 1 is configured to be foldable into two so that the sides of the mattress constituent bodies 2 and 2 that are the upper surfaces of the mattress 1 are in contact with each other. On the lower surface side, it is connected to a coil spring 3 disposed along the peripheral edge of the spring unit 4 in each mattress constituent body 2, 2, and is made of metal that maintains the outer shape of the mattress constituent body 2, 2. The frame line 82 is provided over the entire circumference of the peripheral edge. On the other hand, on the side that becomes the upper surface of the mattress 1 in the expanded state, the mattress components 2 and 2 are connected to the adjacent mattress components 2 and 2 in the peripheral portions of the upper surface and the lower surface of the spring unit 4. A metal frame that is connected to the coil spring 3 disposed along the edge of the edge excluding the connecting edge 4b side that is the portion 7 side , and maintains the outer shape of the mattress constituents 2 and 2 Line 81 is provided . The connecting edge portion 4b is before Symbol connecting portion 7 side, providing a helical spring 10 for connecting the coil spring 3 which is disposed along the 該連Kechien portion 4b. The helical spring 10 is connected to the outer peripheral edge of the coil spring 3 arranged along the connecting edge 4b facing the connecting edge 4b. The exterior body 6 includes a first covering portion 6a that continuously covers the upper surfaces of the spring units 4 and 4 of the mattress constituents 2 and 2, and the four side surfaces and the lower surface side of each spring unit 4 and 4 on the mattress constituents. It is comprised with the 2nd coating | coated part 6b coat | covered independently for every 2 * 2. The connecting portion 7 is formed by sewing the first covering portion 6 a and the second covering portion 6 b at the boundary portion on the upper surface side of the mattress constituting bodies 2, 2.

  The foldable spring mattress of the present invention is configured by connecting a plurality of mattress constituents each having a spring unit or the like, and can be folded at the connecting portion. Sometimes it can be made compact by folding at the connecting part. Accordingly, it is possible to facilitate carrying-in work into an apartment or the like.

  The foldable spring mattress of the present invention is used in a state where the connected mattress constituents are expanded from the folded state to form a spring mattress having a predetermined shape. In that case, on the side that becomes the lower surface of the spring mattress in the expanded state, a metal frame line is provided over the entire circumference of the peripheral edge of the spring unit in each mattress constituent body, and these are the peripheral edge. By being connected to the coil springs arranged along, the coil springs are reinforced and the outer shape on the lower surface side of the spring mattress is maintained.

  At this time, if a metal frame line is located at the boundary between adjacent mattress components on the upper surface side of the spring mattress, the presence of a frame line having a predetermined rigidity can be sensed when lying on the mattress. Will be lost. However, in the mattress of the present invention, a helical spring for connecting a coil spring arranged along this edge is provided at the edge on the connecting part side of each mattress constituent body instead of a metal frame line. Therefore, a cushion feeling similar to that of the normal portion supported by the coil spring can be obtained. Therefore, the sleeping comfort is not impaired as in the case where the shape-retaining frame line is present at the connecting portion of the mattress structure.

  As described above, according to the present invention, it is possible to realize a foldable spring mattress that can be made compact by folding at the time of transporting / carrying in or at the time of storage, and that provides a good sleeping comfort.

It is a perspective view which shows the foldable spring mattress which concerns on the Example of this invention. It is a top view shown in the state where a part of the spring mattress was cut out. It is a disassembled perspective view which shows only the spring unit in the said spring mattress. FIG. 4 is a partially enlarged plan view showing a part of the spring mattress with a part cut away in order to show an internal structure around a connecting portion (a central portion in the full length direction of the mattress) of a mattress constituent body. It is sectional drawing cut | disconnected by the VV line | wire of FIG. It is sectional drawing cut | disconnected by the VI-VI line of FIG. 2, and seeing in the arrow direction.

  The spring mattress mainly includes a Bonnell coil mattress and a pocket coil mattress. In the former, each coil spring constituting the spring unit is connected to a predetermined state by a helical spring (helical wire) made of a helical thin wire extending in the width direction of the mattress. The body (load) is supported as a whole. In the latter, each coil spring is individually wrapped and wrapped with a bag-like non-woven fabric or the like, and sinks only where it is loaded. Although the present invention can be applied to any of these types, it is structurally more advantageous than the pocket coil type in that the helical spring as described above is also used at the edge of the mattress structure on the connecting portion side. The coil type is more suitable.

  When applied to a Bonnell coil mattress, a plurality of helical thin wires extending in the width direction of the mattress are formed on the upper surface side and the lower surface side of the coil spring assembly in which the spring unit is to be formed in each mattress constituent body. Provide a helical spring. The helical springs connect the coil springs located on the same row in the width direction of the mattress, and connect the coil springs in adjacent rows in the full length direction of the mattress to connect the spring units. Each mattress component in the present invention is formed using this spring unit.

  As the metal frame line in each mattress structure, one having a diameter of 3 to 6 mm can be used, and as the helical spring, a wire having a diameter of 1 to 3 mm can be used.

  As the number of mattress constituents constituting the spring mattress of the present invention, 2 to 3 is appropriate, but 4 or more is also possible. The mattress constituents can be connected in the direction (the direction in which the mattress constituents are arranged side by side) in either the full length direction or the width direction of the mattress. This is desirable because the overall size can be reduced. However, in the case of a mattress having a relatively large size in the width direction, the mattress structure may be connected in the width direction.

  As for the structure of the connecting portion of the mattress structure, only the edge on either the upper surface side or the lower surface side of the portion to be the connecting side is connected so as to be foldable via the exterior body, etc. It can be set as the structure where the edge part was isolate | separated. In addition, a structure in which an exterior body (which may be integrated with the following stuffing) in an adjacent mattress structure is attached to an edge on either the upper surface side or the lower surface side of the portion to be the connection side It can also be.

  As the exterior body that covers the entire surface of the spring unit, for example, a laminate in which the surface side of the urethane foam is covered with a fabric or the like can be used. A padding can be disposed between the spring unit and the exterior body. As this type of stuffing, in addition to urethane foam, vegetable fibers such as cotton, non-woven fabric, linen, and coconut fibers can be used, and animal fibers such as wool and feathers can also be used.

  1 to 6 show a folding spring mattress according to an embodiment of the present invention. As shown in FIGS. 1 and 2, the foldable spring mattress 1 has two rectangular mattress components 2 in which the size of the mattress 1 in the full length direction (vertical direction in FIG. 2) is half of the entire mattress. -It is comprised by 2 and it is set as the structure which connected these mattress structure bodies 2 and 2 so that folding was possible in the corresponding one side part.

  As shown in FIGS. 2 to 4, each mattress constituting body 2 has a spring unit 4 in which a plurality of drum-shaped coil springs 3 are arranged side by side along a plane orthogonal to the compression direction. On the upper surface side and the lower surface side of each spring unit 4, a plurality of helically thin wires (1.5 mm diameter wire in this embodiment) extending in the width direction of the mattress (left and right direction in FIG. 2). Helical springs 5 are provided. The helical springs 5 are connected to the coil springs 3 located on the same line in the width direction of the mattress 1 and are adjacent to each other in the full length direction of the mattress. The coil springs 3 in the row are connected to each other.

  As shown in FIGS. 2 and 4 to 6, the entire surface of each spring unit 4 is covered with an exterior body (in this example, a laminate in which the surface side of urethane foam is covered with a cloth) 6. The exterior body 6 continuously covers the upper surface sides of the spring units 4 and 4 of the mattress constituent bodies 2 and 2 in a state where the mattress constituent bodies 2 and 2 are spread to form a predetermined spring mattress 1. The first covering portion 6a includes four side surfaces (that is, peripheral surfaces) and the lower surface side of each spring unit 4 and each second covering portion 6b that covers each mattress constituent body 2 and 2 independently. As shown in FIGS. 5 and 6, the first covering portion 6a and each of the second covering portions 6b are attached to the peripheral portions on the upper surface side of the both mattress constituents 2 and 2, whereby both mattress configurations The mattress constituents 2 and 2 can be folded at the boundary portion on the upper surface side of the bodies 2 and 2, that is, the connecting portion 7 of the mattress constituents 2 and 2 (see FIG. 1).

  In addition to the above configuration, in the spring mattress 1, as shown in FIGS. 2 to 4 and 6, the spring unit 4 of each mattress structural body 2 is expanded in a state where both the mattress structural bodies 2 and 2 are expanded. Metal frame lines (iron wires having a diameter of 5 mm in this embodiment) 81 and 82 are provided on the upper surface side and the lower surface side, respectively. Among these, the metal frame line 82 on the lower surface side is provided over the entire circumference of the peripheral portion on the lower surface side of the spring unit 4, and the lower end of the coil spring 3 disposed along the peripheral portion on the lower surface side. It is connected to the side using a plurality of connecting fittings 9. On the other hand, the metal frame 81 on the upper surface side is an edge portion of the peripheral portion on the upper surface side of the spring unit 4 excluding the connecting portion 7 side with the adjacent mattress constituting body 2 (for convenience, “non-connected edge portion”). It is provided along the 4a, and is connected to the upper end side of the coil spring 3 disposed along the non-connecting edge 4a by using a plurality of connecting fittings 9.

  Further, in the state where both mattress constituents 2 are expanded, an edge (referred to as “connecting edge”) 4b on the connecting portion 7 side located on the upper surface side of the spring unit 4 in each mattress constituent 2 is shown in FIG. As shown in FIG. 4 and FIG. 5, helical springs 10 that connect the upper ends of the coil springs 3 arranged along the connecting edge 4b are provided. Each helical spring 10 is the same as the above-described helical spring 5 used for coupling the coil spring 3 in each spring unit 4.

  According to the foldable spring mattress 1 configured as described above, the size of the mattress components 2 and 2 is folded at the connecting portion 7 as shown by the solid line in FIG. Since it can be made compact, it is easier to carry it into an apartment.

  The folded spring mattress 1 can be made into a single rectangular parallelepiped spring mattress by spreading both mattress constituents 2 and 2 from the above folded state as shown by the chain line in FIG. 1 after installation. In this case, as shown in FIG. 2, on the upper surface side of the spring unit 4 in each mattress constituent body 2, an edge portion (non-connecting edge portion) 4 a excluding the connecting portion 7 side with the adjacent mattress constituent body 2. The metal frame line 81 provided on is located over the entire circumference of the peripheral edge of the spring mattress 1 in the expanded state. Further, on the lower surface side of the spring unit 4 in each mattress constituent body 2, a metal frame line 82 is positioned over the entire circumference of each mattress constituent body 2. Therefore, the outer shape of the spring mattress 1 can be maintained by the frame lines 81 and 82.

  In the state where both mattress constituents 2 and 2 are expanded as described above to form one rectangular parallelepiped spring mattress 1, the connecting portion 7 of both mattress constituents 2 and 2 is positioned at the intermediate portion in the full length direction. Therefore, if there is a metal frame 8 in this portion, the presence of the frame 8 is sensed when lying on the mattress, and the sleeping comfort is impaired. However, in the spring mattress 1 described above, the spring unit 4 is formed on the edge portion (connection edge portion) 4b on the connection portion 7 side on the upper surface side of each mattress structure 2 instead of the metal frame 81. Since the helical spring 10 used as the connecting means of the coil spring 3 is provided, a cushion feeling similar to that of the center portion of the mattress constituting body 2 can be obtained. As a result, it is possible to avoid the above-described problems that occur when the shape retaining frame 81 is present in the connecting portion 7 of both mattress constituents 2 and 2, as in the case of a normal single-piece spring mattress. A good sleeping comfort and feeling of use can be obtained.

DESCRIPTION OF SYMBOLS 1 Folding-type spring mattress 2 Mattress structure 3 Coil spring 4 Spring unit 6 Exterior body 7 Connection part 10 Helical spring 81 * 82 Metal frame line

Claims (1)

A plurality of coil springs (3) along a plane perpendicular to the compression direction and juxtaposed in a matrix, a coil spring (3) which is adjacent to the entire length and width directions of the mattress upper and lower ends to each other Jerica Luz pulling (5) A mattress structure (2) having a rectangular parallelepiped shape comprising a spring unit (4) connected to each other and an exterior body (6) covering the entire surface of the spring unit (4). A foldable spring mattress in which two structural members (2) are connected and foldable at the connecting portion (7).
The mattress (1) is configured to be folded in two so that the sides of the mattress constituent bodies (2, 2) on the upper surface in the expanded state are in contact with each other.
A coil spring (3) disposed along the peripheral edge of the spring unit (4) in each mattress constituting body (2) and 2 (2) on the lower surface side when the mattress (1) is expanded. While being connected and provided with a metal frame line (82) that keeps the outer shape of each mattress component (2.2) over the entire circumference of the peripheral edge,
On the side that becomes the upper surface of the mattress (1) in the expanded state, adjacent mattress constituents (2.2) among the peripheral portions of the spring units (4) in the mattress constituents (2.2). Are connected to coil springs (3) arranged along these edges on the edges excluding the connecting edge (4b ) side which is the connecting part (7) side to each mattress constituting body (2. 2) A metal frame line (81) that maintains the outer shape is provided, and the connection edge (4b) on the connection part (7) side is disposed along the connection edge (4b). A helical spring (10) for connecting the coil spring (3),
The helical spring (10) is connected to the outer peripheral edge of the coil spring (3) disposed along the connection edge (4b) facing the connection edge (4b).
The exterior body (6) includes a first covering portion (6a) for continuously covering the upper surface of the spring unit (4, 4) of the mattress constituent body (2, 2), and each spring unit (4, 4). And a second covering portion (6b) for independently covering each of the mattress constituents (2, 2) on the four side surfaces and the lower surface side,
The connecting portion (7) is formed by sewing the first covering portion (6a) and the second covering portion (6b) at the boundary portion on the upper surface side of the mattress structure (2-2). Folding spring mattress characterized by being.

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