JP2004016341A - Mattress device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mattress device capable of enlarging the effective use area by hardening the periphery of a spring structure. <P>SOLUTION: The mattress device comprises the spring structure 1 formed with a spring 2 having a coil part 3, a first elastic material 11 mounted on the outer surface of the spring structure, a reinforcing projecting part formed on the inner surface of the first elastic material to be inserted between pitches of the coil part located in the periphery of the spring structure, a second elastic material 18 mounted on the upper and lower faces formed by the spring structure and the first elastic material, and a covering material 21 covering the first and the second elastic materials. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress device in which a peripheral portion is hardened to increase an effective use area.
[0002]
[Prior art]
In general, a mattress device has a spring structure, and a flat elastic material is laminated on the upper and lower surfaces of the spring structure, and the laminated body is covered with an exterior body obtained by sewing a fabric into a bag shape.
[0003]
The spring assembly is formed by arranging a plurality of coiled springs in a matrix and connecting the upper end surface and the lower end surface of adjacent springs with helical lines. Further, as the spring, a so-called continuous spring in which a plurality of coil portions are continuously formed with a single wire rod with their axes substantially parallel to each other may be used. In this case, a plurality of continuous springs are arranged in parallel. There is also one formed by connecting the upper end and the lower end of a coil portion of an adjacent continuous spring by a helical wire.
[0004]
Regardless of the configuration of the spring structure used, the periphery of the spring structure, in which the degree of connection between the springs is small, is softer than the other parts, and the periphery cannot be used effectively. May have a reduced effective use area.
[0005]
In order to increase the effective use area of the spring structure, the present applicant has proposed a mattress device disclosed in Japanese Patent Application Laid-Open No. 49-120772. In the mattress device disclosed in this publication, a spring structure provided with a shielding sheet on an outer peripheral surface is housed in a mold, and an elastic body is foam-formed on the outer peripheral surface of the spring structure. Thereby, the periphery of the spring structure, that is, the periphery of the mattress device is reinforced by the elastic body.
[0006]
[Problems to be solved by the invention]
In order to foam the elastic body on the outer peripheral surface of the spring structure, the mold must be large enough to accommodate the spring structure. For this reason, a large mold is required, which may lead to an increase in cost. In addition, since foam molding of the elastic body involves a foam molding operation, productivity may be reduced.
[0007]
On the other hand, recently, there is a demand for recycling of the mattress device. In order to recycle the mattress device, it is necessary to separate the mattress device for each material used, such as a metal portion, a synthetic resin portion, and a fabric portion.
[0008]
However, if the elastic body is foam-molded on the outer peripheral surface of the spring structure, it takes much time and effort to separate the elastic body from the spring structure at the time of recycling, which is not suitable for recycling.
[0009]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a mattress device which can easily reinforce a peripheral portion of a spring structure.
[0010]
[Means for Solving the Problems]
The invention according to claim 1 is a spring structure formed by a spring having a coil portion;
A first elastic member provided on an outer peripheral surface of the spring structure;
A reinforcing projection provided on the inner peripheral surface of the first elastic member and entering between the pitches of the coil portions located at the periphery of the spring structure;
A second elastic member provided on an upper surface and a lower surface formed by the spring structure and the first elastic member;
An exterior body coated with the first and second elastic members,
A mattress device comprising:
[0011]
According to a second aspect of the present invention, a frame line is provided at a peripheral portion of upper and lower surfaces of the spring structure, and a concave portion into which the frame line enters is provided at an upper surface and a lower surface of the first elastic member. The mattress device according to claim 1, characterized in that:
[0012]
According to a third aspect of the present invention, the peripheral portion of the second elastic member is bonded and fixed to an upper surface and a lower surface of the first elastic member, and the first elastic member is provided with the first elastic member. 2. The mattress device according to claim 1, wherein a ventilation hole penetrating through the inner surface and the outer surface is formed.
[0013]
According to a fourth aspect of the present invention, the peripheral portion of the second elastic member is adhered and fixed to an upper surface and a lower surface of the first elastic member, and a bonding surface between the first elastic member and the second elastic member. 2. The mattress device according to claim 1, wherein the other end of the flange cloth having one end fixed to the exterior body is integrally bonded and fixed.
[0014]
According to a fifth aspect of the present invention, in the mattress device according to the first aspect, the first elastic body and the reinforcing protrusion have different hardnesses in a thickness direction of the spring structure. is there.
[0015]
According to the present invention, the reinforcing protrusion is provided on the inner peripheral surface of the first elastic member provided on the peripheral portion of the spring structure, and the reinforcing protrusion is provided between the pitches of the coil portions located on the peripheral portion of the spring structure. Since the coil portion is inserted, the coil portion is reinforced by the reinforcing protrusion, and the peripheral portion of the spring structure can be hardened.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
The mattress device of the present invention shown in FIGS. 1 to 3 includes a spring structure 1. This spring structure 1 is formed by a plurality of springs 2. The spring 2 has a plurality of coil portions 3 which are spaced apart from each other at a predetermined interval with one wire substantially parallel to the axis, and upper and lower ends of adjacent coil portions 3 are respectively connected to an upper connecting rod 4 and a lower connecting rod. 5. Note that the spring 2 entangles the middle portions of the adjacent coil portions 3 with each other.
[0018]
The spring structure 1 is configured by arranging a plurality of the springs 2 side by side, and connecting an upper surface and a lower surface of the coil portion 3 of the side by side helical wires 6. Thereby, the spring structure 1 is in the form of a rectangular plate having a predetermined thickness, and frame lines 7 are attached to the upper and lower peripheral edges by clips 8 respectively.
[0019]
On the outer peripheral surface of the spring structure 1, a first elastic body 11 formed of relatively hard urethane foam or the like is provided over the entire circumference. In this embodiment, a cushion material obtained by mixing and pressing an urethane adhesive is used as a main material using chips obtained by pulverizing a soft urethane foam, and the hardness is adjusted by adjusting the pressing pressure. .
[0020]
The first elastic body 11 has a rectangular column shape with a rectangular cross section, and a height dimension is set slightly larger than a height dimension of the spring structure 1. The first elastic body 11 is divided into four portions each having a length corresponding to each side of the spring structure 1, and both end surfaces are formed as inclined surfaces having an angle of 45 degrees.
[0021]
On the inner peripheral surface of the first elastic body 11, a reinforcing member 15 is provided with one side surface adhered and fixed. On the other side surface of the reinforcing member 15, a plurality of, in this embodiment, three reinforcing projections 12 having a triangular cross section are provided at predetermined intervals in the vertical direction.
[0022]
The reinforcing member 15 is divided into four parts, like the first elastic body 11, and both end faces in the longitudinal direction of each of the divided parts are formed as 45-degree slopes.
[0023]
The four first elastic members 11 each having the reinforcing member 15 provided on the inner surface are provided on the outer peripheral surface of the spring structure 1, and the both ends in the longitudinal direction adjacent to each other are adhered and fixed by an adhesive that cures during drying. Is provided.
[0024]
The upper surface and the lower surface of the first elastic body 11 are respectively formed with concave portions 13 which are open to the inner peripheral surface, and the first elastic body 11 has a plurality of communicating portions which communicate the inner peripheral surface and the outer peripheral surface. A vent hole 14 is provided.
[0025]
Then, the first elastic body 11 fits the reinforcing protrusions 12 provided on the inner peripheral surface between the pitches of the coil portions 3 located at the peripheral portion of the spring structure 1 and into the concave portions 13 formed on the upper surface and the lower surface. A frame 7 provided on the peripheral edge of the upper and lower surfaces is fitted and provided on the periphery of the spring structure 11.
[0026]
The reinforcing protrusions 12 are formed slightly larger than the cross-sectional shape between the pitches of the coil portions 3. Thereby, when the reinforcing protrusions 12 are fitted between the pitches of the coil portions 3, the reinforcing protrusions 12 are elastically deformed by compression and elastically adhere to the wire forming the coil portions 3, so that the coil portions 3 The reinforcing protrusions 12 reliably reinforce.
[0027]
The reinforcing projection 12 is formed separately from the first elastic body 11 and is fixed by bonding. However, the reinforcing projection 12 may be integrally formed with the first elastic body 11.
[0028]
As shown in FIGS. 1 and 2, a first protective sheet 16 formed on the upper and lower surfaces of the spring structure 1 by a relatively hard felt and having approximately the same size as the upper and lower surfaces of the spring structure 1. It is laminated. The first protective sheet 16 is laminated with a second protective sheet 17 having a size substantially equal to the area formed by the upper and lower surfaces of the spring structure 1 and the upper and lower surfaces of the first elastic body 11. I have. The second protective sheet 17 is formed of a softer felt than the first protective sheet 16.
[0029]
On the second protective sheet 17, a second elastic body 18 formed of a low rebound urethane foam and formed in a rectangular plate shape having substantially the same size as the second protective sheet 17 is laminated. The inner peripheral portions of the pair of upper and lower second elastic members 18 are bonded and fixed to the upper surface and the lower surface of the first elastic member 11 via the second protective sheet 17, respectively.
[0030]
Before the second elastic body 18 and the first elastic body 11 are bonded and fixed, as shown in FIG. 2, a plurality of band-shaped flange cloths 19 are provided on the upper surface of the first elastic body 11 at predetermined intervals in the circumferential direction. Is temporarily fixed with an adhesive. When the second elastic body 18 is bonded and fixed to the upper surface of the first elastic body 11 via the second protective sheet 17, one end of the flange cloth 19 is integrally fixed.
[0031]
The outer peripheral surface of the first elastic body 11 and the outer surface of the second elastic body 18 are covered with an exterior body 21. The exterior body 21 includes a town 22 covering the outer peripheral surface of the first elastic body 11 and a pair of mirror grounds 23 covering the outer surface of the second elastic body 18. The upper and lower ends of the gusset 22 are sewn to the periphery of the pair of mirrors 23 by tape 24, and the other end of the flange cloth 19 is integrally sewn to this sewn portion.
[0032]
As a result, the exterior body 21 is held by the spring structure 1 via the flange cloth 19, so that the outer body 21 is prevented from moving relative to the spring structure 1.
[0033]
The mirror base 23 is formed by providing an elastic sheet 27 made of a thin urethane foam or the like between a front cloth 25 and a backing 26, and quilting these three integrally.
[0034]
According to the mattress device configured as described above, the pitch of the coil portion 3 of the spring 2 located at the peripheral portion of the spring structure 1 is provided on the inner peripheral surface of the first elastic body 11 provided at the peripheral portion of the spring structure 1. Reinforcement convex portions 12 are provided between the elastic protrusions so as to elastically contact each other.
[0035]
Therefore, since the coil portion 3 located at the peripheral portion of the spring structure 1 is reinforced by the reinforcing convex portion 12, the peripheral portion can be used with substantially the same hardness as other portions. That is, since the periphery of the mattress device can be used effectively, the effective use area of the mattress device can be increased.
[0036]
A peripheral portion of an inner surface of a second elastic body 18 provided on the upper and lower surfaces of the spring structure 1 is adhesively fixed to upper and lower surfaces of a first elastic body 11 provided on a peripheral portion of the spring structure 1. That is, the first elastic body 11 and the second elastic body 18 are integrated.
[0037]
For this reason, even if the spring structure 1 receives a load and is compressed and deformed, the first elastic body 11 does not come off from the peripheral portion of the spring structure 1, so that the reinforcement provided on the inner surface of the first elastic body 11 is provided. The protrusions 12 do not deviate from between the pitches of the coil portion 3. Therefore, the reinforcing state of the coil portion 3 located in the peripheral portion of the spring structure 1 by the reinforcing protrusion 12 can be reliably maintained.
[0038]
The first elastic body 11 having the reinforcing member 15 adhered and fixed to the inner peripheral surface is divided into four parts together with the reinforcing member 15, and both end surfaces in the longitudinal direction formed on the 45-degree inclined surface are hardened during drying. It is provided on the outer peripheral surface of the spring structure 1 by being adhered and fixed with an adhesive.
[0039]
Therefore, the peripheral portion of the spring structure 1 is reinforced by the first elastic body 11 and the reinforcing member 15, and furthermore, is an adhesive in which the first elastic body 11 and the reinforcing member 15 divided into four parts are adhered and fixed. Therefore, the lateral swing of the spring structure 1 can be prevented.
[0040]
The upper and lower surfaces of the first elastic body 11 are adhesively fixed to the inner peripheral portion of the second elastic body 18, but the reinforcing projections 12 provided on the inner surface of the spring It is just sandwiched between.
[0041]
Therefore, the first elastic body 11 can be easily separated from the spring structure 1 by peeling off the bonding portion between the first elastic body 11 and the second elastic body 18, so that the work of separating the mattress device for each material at the time of recycling is easy. It becomes.
[0042]
The first elastic body 11 has a ventilation hole 14 penetrating the inner surface and the outer surface. Therefore, even if the inner peripheral portion of the second elastic body 18 is bonded and fixed to the upper and lower surfaces of the first elastic body 11, the space formed by the elastic bodies 11 and 18, that is, the spring structure 1 is sealed. Since the spring structure 1 is not deformed, the spring structure 1 receiving the load is smoothly elastically deformed, and at the same time, it is possible to prevent the spring structure 1 from being rusted at an early stage due to the dampness inside.
[0043]
One end of the flange cloth 19 was sandwiched between the upper surface of the first elastic body 11 and the peripheral portion of the inner surface of the second elastic body 18, and the other end was sewn to the exterior body 21. Therefore, the exterior body 21 does not shift with respect to the spring structure 1, so that the external shape and performance of the mattress device can be favorably maintained.
[0044]
On the upper and lower surfaces of the first elastic body 11, concave portions 13 opened to the inner peripheral surface side are formed, and the frame lines 7 provided on the peripheral edges of the upper and lower surfaces of the spring structure 1 are positioned in the concave portions 13. did.
[0045]
Therefore, since the frame 7 does not protrude from the upper and lower surfaces of the first elastic body 11, the hardness of the frame 7 is hardly transmitted to the user who is lying on the mattress device, and the sleeping comfort is prevented from being impaired. it can.
[0046]
The present invention is not limited to the above-described embodiment. For example, the spring structure may be configured by arranging coil springs in a matrix, and in other words, the spring structure may be formed by a spring having a coil portion. Just fine.
[0047]
The first elastic body and the reinforcing member forming the reinforcing projection are divided into a plurality of parts in the thickness direction of the spring structure, and each of the divided parts is formed of an elastic material having a different hardness, and is adhesively fixed. You may do so. This makes it possible to change the feeling of use given to the user depending on whether the upper or lower surface of the spring structure is used.
[0048]
【The invention's effect】
As described above, according to the present invention, the reinforcing protrusion is provided on the inner peripheral surface of the first elastic member provided on the peripheral portion of the spring structure, and the reinforcing protrusion is located on the peripheral portion of the spring structure. Between the pitches.
[0049]
Therefore, the coil portion located in the peripheral portion of the spring structure can be reinforced by the reinforcing protrusion, so that the effective use area of the mattress device can be increased.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a part of a mattress device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing the inside of the mattress device with a part broken away.
FIG. 3 is a perspective view showing a part of a spring and a first elastic body.
FIG. 4 is a cross-sectional view of the entire mattress device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Spring structure 2 ... Spring 3 ... Coil part 7 ... Frame line 11 ... First elastic body 12 ... Reinforcement convex part 13 ... Concave part 14 ... Vent hole 18 ... Second elastic body 21 ... Outer body

Claims (5)

A spring structure formed by a spring having a coil portion;
A first elastic member provided on an outer peripheral surface of the spring structure;
A reinforcing projection provided on the inner peripheral surface of the first elastic member and entering between the pitches of the coil portions located at the periphery of the spring structure;
A second elastic member provided on an upper surface and a lower surface formed by the spring structure and the first elastic member;
An exterior body coated with the first and second elastic members,
A mattress device comprising: 2. The frame structure according to claim 1, wherein a frame line is provided at a peripheral portion of upper and lower surfaces of the spring structure, and a concave portion is provided at an upper surface and a lower surface of the first elastic member, into which the frame line enters. Mattress equipment. A peripheral portion of the second elastic material is adhered and fixed to an upper surface and a lower surface of the first elastic material, and the first elastic material penetrates an inner surface and an outer surface of the first elastic material. The mattress device according to claim 1, wherein a ventilation hole is formed. A peripheral portion of the second elastic member is adhered and fixed to an upper surface and a lower surface of the first elastic member, and one end of the adhesive surface between the first elastic member and the second elastic member is formed of the exterior. 2. The mattress device according to claim 1, wherein the other end of the flange cloth fixed to the body is integrally bonded and fixed. The mattress device according to claim 1, wherein the first elastic body and the reinforcing protrusion have different hardnesses in a thickness direction of the spring structure.

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