JP4288081B2 - Mattress equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mattress device configured by superposing a plurality of spring units.
[0002]
[Prior art]
In order to improve the performance of the mattress device, for example, as shown in Patent Document 1, a configuration in which a plurality of spring units are polymerized and the polymer is covered with an exterior is known.
[0003]
The mattress device disclosed in Patent Document 1 includes an upper-stage spring layer formed by arranging a large number of relatively small cylindrical springs and a large number of relatively large diameter cylindrical springs. A lower spring layer is laminated via a net-like planar elastic member, and these are covered with a side ground.
[0004]
[Patent Document 1]
Registered Utility Model Publication No. 3057993
[Problems to be solved by the invention]
When a load is applied to the upper spring layer formed by arranging a large number of cylindrical springs in parallel, each cylindrical spring is elastically deformed independently of the load. That is, the portion to which a large load is applied is greatly elastically deformed, and the portion to which no load is applied is hardly elastically deformed. Therefore, the load applied to the upper spring layer is not dispersed and partially concentrated.
[0006]
Therefore, the cylindrical spring that receives a heavy part of the user's body is greatly elastically deformed according to the load, so that the user has a relatively soft feel. However, according to the mattress device in which the two spring layers having such a configuration are laminated, the degree of load dispersion is significantly reduced, and accordingly, the fall of a heavy part of the user's body, such as a hip, is large. Become.
[0007]
As a result, the user may have a sleeping posture with a greatly bent spine, which may decrease sleep comfort, and the heavy part of the body will sink greatly, which requires physical strength when a user who is supine gets up. Older people and sick people who have fallen have difficulty getting up.
[0008]
An object of the present invention is to provide a mattress device that can support a user's body softly and can also support a heavy part of the body without sinking significantly.
[0012]
[Means for Solving the Problems]
The present invention is constituted by superposing a first spring unit and a second spring unit, laminating sheet-like elastic members on the upper surface and the lower surface of the polymer, respectively, and covering them with an exterior ground. In the mattress device,
In the first spring unit, a plurality of spring bodies in which a plurality of spring portions are continuously formed by one wire rod are connected in parallel in a rectangular plate shape, and one surface and the other formed by these spring bodies The first frame line is connected to the peripheral part of the surface of
The second spring unit is arranged in a matrix such that a plurality of coil springs housed in a bag are in the shape of a rectangular plate having approximately the same size as the first spring unit, and the coil spring located at the periphery One end in the axial direction is connected by a second frame line,
A sheet-like partition member is provided between the first spring unit and the second spring unit to be superposed, and a peripheral portion of the partition member and one first frame line of the first spring unit and The mattress device is characterized in that the other end in the axial direction of the coil spring located at the peripheral edge of the second spring unit is connected by connecting means.
[0014]
According to this invention, the 1st spring unit comprised by the continuous spring body in which the several spring part was formed continuously is the 2nd spring unit comprised by arrange | positioning several coil springs in matrix form. When the second spring unit is used with the second spring unit upward, the user is supported by the soft feel of the first spring unit and hardened by the first spring unit. This prevents the heavy part of the body from dropping significantly.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0016]
1 to 4 show a first embodiment of the present invention. In the mattress device 1 shown in FIG. 1, a first spring unit 2 and a second spring unit 3 are superposed. In FIG. 1, the first spring unit 2 is on the lower side and the second spring unit 3 is on the upper side.
[0017]
A sheet-like lower elastic material 5 made of low-resilience urethane foam is laminated on the lower surface of the first spring unit 3 via a protective sheet 4 formed of felt or the like. On the upper surface of the second spring unit 3, similarly to the lower elastic material 5, an upper elastic material 6 formed in a sheet shape by a low resilience urethane foam is laminated. The lower surface of the upper elastic member 6, that is, the surface facing the upper surface of the second spring unit 3 is an uneven surface 7 in which a large number of concave portions and convex portions are alternately formed over the entire plate surface.
[0018]
Then, the laminated body including the first spring unit 2, the second spring unit 3, the lower elastic member 5, and the upper elastic member 6 is covered with an exterior ground 8. The exterior ground 8 includes a town 9 that covers the outer peripheral surface of the laminate, and a pair of mirrors 10 that covers the lower surface and the upper surface of the laminate. The peripheral edge is stitched by the tape edge 11.
[0019]
The first spring unit 2 includes a plurality of spring bodies 13 arranged in a rectangular plate shape, and the upper and lower surfaces of the spring bodies 13 are connected by a helical wire 14 in a direction intersecting the parallel arrangement direction of the spring bodies 13. Has been.
[0020]
As shown in FIGS. 3A and 3B and FIG. 4, the spring body 13 has a plurality of coiled spring portions 15 formed continuously by a single wire. The lower ends of a pair of adjacent spring portions 15 are continuous by a lower connecting rod 16 having a U-shaped planar shape, and the upper ends are continuously connected by an upper connecting rod 17 having a U-shaped planar shape. Yes. The lower connecting rods 16 and the upper connecting rods 17 are alternately formed, and the middle portions of a pair of adjacent spring portions 15 are entangled.
[0021]
A first upper frame line 18 and a first lower frame line 19 are arranged on the periphery of the upper surface and the lower surface of the first spring unit 1 composed of a plurality of spring bodies 13 connected in a rectangular plate shape by a helical wire 14, respectively. Are fixedly attached by clips 20.
[0022]
A partition member 21 is provided between the first spring unit 1 configured as described above and the second spring unit 3. As this partition member 21, for example, a pressed palm in which fibers are compressed into a sheet shape and bonded with an adhesive is used.
[0023]
The second spring unit 3 includes a large number of coil springs 23 arranged in a matrix. Each coil spring 23 is accommodated in a bag 24 formed of a nonwoven fabric made of heat-meltable fibers. Halfway portions in the height direction of the bag bodies 24 that house the adjacent coil springs 23 are thermally bonded (hot melted) to each other. These coil springs 23 are placed on the protective sheet 21.
[0024]
The lower end of the coil spring 23 located at the periphery of the second spring unit 3 penetrates the bag body 24 together with the periphery of the partition member 21 into the first upper frame line 18 of the first spring unit 2. They are integrally connected by a clip 25 as a connecting means. Further, the upper end of the coil spring 23 located at the periphery of the second spring unit 3 is connected by a second upper frame line 26 by a clip 27 penetrating the bag body 24.
[0025]
Accordingly, the second spring unit 3 is integrated with the first upper frame 18 and the partition member 21 of the first spring unit 2 by the clip 25 and is prevented from being displaced on the partition member 21. .
[0026]
Moreover, the peripheral edge of the partition member 21 is coupled to the first upper frame line 17 of the first spring unit 2 by a clip 25. Therefore, even when a partial load is applied to the second spring unit 3, the partition member 21 is prevented from being largely bent due to the load. That is, even if a load is partially applied to the second spring unit 3, the load is distributed over the entire surface of the first spring unit 2 by the partition member 21.
[0027]
When the mattress device 1 configured in this way is used with the first spring unit 2 on the lower side and the second spring unit 3 on the upper side as shown in FIG. The coil spring 23 forming the second spring unit 3 is elastically deformed according to the load distribution of the user. That is, since the many coil springs 23 constituting the second spring unit 3 are elastically deformed separately according to the load distribution, a soft feeling is given to the user.
[0028]
The load applied to the second spring unit 3 is transmitted to the first spring unit 2 below the second spring unit 3. The second spring unit 3 is placed on the first spring unit 2 via a partition member 21 whose peripheral part is connected and fixed to the first upper frame line 18 of the first spring unit 2 by a clip 25. It is fixed.
[0029]
Even if the load applied to the second spring unit 3 is non-uniform according to the load distribution of the user's body, the load applied to the second spring unit 3 is distributed almost uniformly by the partition member 21 and the first spring unit 3 is distributed. Join the spring unit 2.
[0030]
Therefore, the first spring unit 2 is not substantially elastically deformed partially, but is elastically deformed almost uniformly as a whole, so that a heavy portion of the user's body constitutes the second spring unit 3. Even if the first spring unit 2 sinks greatly due to the softness of the coil spring 23, the heavy part of the body is prevented from sinking further than that.
[0031]
Moreover, the first spring unit 2 is configured by arranging a plurality of spring bodies 13 in which a plurality of spring portions 15 are continuously formed by one wire. Therefore, the spring body 13 itself is hardly elastically deformed partially even under a partial load, and has the hardness to elastically deform while dispersing the load over the entire spring body 13. Combined with the action of the partition member 21, the heavy part of the user's body is prevented from sinking greatly.
[0032]
As a result, the user who is supine on the mattress device 1 can maintain a sleeping posture in which a heavy portion of the body does not sink more than necessary, so that the spine does not bend greatly, and sleep comfort can be improved. . In addition, since the heavy part of the body is prevented from sinking greatly, even if the user is a person with reduced physical strength such as an elderly person or a sick person, it is easy to get up from a supine state.
[0033]
That is, the user feels a soft touch by the function of distributing the load between the spring body 13 and the partition member 21 constituting the first spring unit 2 and the softness of the coil spring 23 constituting the second spring unit 3. The patient can lie on his back with a good sleeping posture without bending his back muscles.
[0034]
A coil spring 23 forming the second spring unit 3 is accommodated in a bag body 24. This prevents the adjacent coil springs 23 from directly colliding with each other to generate noise, but the bag body 24 may impair the air permeability of the second spring unit 3.
[0035]
However, the inner surface facing the coil spring 23 of the upper elastic member 6 laminated on the upper surface of the second spring unit 3 is formed on the uneven surface 7. Therefore, a space 31 is formed between the upper end surface of the coil spring 23 accommodated in the bag body 24 and the inner surface of the upper elastic member 6 by the uneven surface 7 as shown in FIG. The air permeability is ensured by 31. Therefore, it is possible to prevent moisture from being accumulated between the joint surfaces of the second spring unit 3 and the upper elastic member 6.
[0036]
Moreover, since the upper elastic member 6 is a low-resilience urethane foam, even if it is compressed and deformed by a user's load, almost no reaction force is generated. Therefore, the upper elastic member 6 hardly gives a user a feeling of pressure.
[0037]
Since the mattress device 1 has a two-layer structure of the first spring unit 2 and the second spring unit 3, the load applied to the upper first spring unit 2 is different from that of the first spring unit 2 and the lower spring unit 2. It is distributed to the second spring unit 3. Therefore, durability can be improved as compared with a mattress device having a single-layer spring unit.
[0038]
The mattress device 1 having the above configuration can be used with the first spring unit 2 on the upper side and the second spring unit 3 on the lower side. When the first spring unit 2 is used with the upper side up, the hardness of the first spring unit 2 allows the user to support a heavy part of the body with almost no sinking. However, the soft feeling of the second spring unit 3 cannot be directly given to the user as in the case where the second spring unit 3 is used with the upper side.
[0039]
However, since the first spring unit 2 on the upper side receives the load of the user in a distributed manner on the entire surface of the first spring unit 2, the second spring unit 3 is provided with the first spring unit 2. Corresponding to the load distribution in the unit 2, it is elastically deformed almost uniformly as a whole.
[0040]
Therefore, although the soft feeling of the second spring unit 3 cannot be obtained, the first spring unit 2 is elastically supported by the soft elasticity of the second spring unit 3, and therefore the mattress device 1 as a whole. Will exhibit good cushioning performance. That is, the mattress device 1 can be used regardless of which of the first spring unit 2 and the second spring unit 3 is on the upper side according to the preference of the user.
[0041]
Further, the second spring unit 3 is integrally coupled to the first spring unit 2 by a clip 25. For this reason, even when the first spring unit 2 and the second spring unit 3 are superposed, the spring units 2 and 3 do not move and are used in a stable state. can do.
[0042]
5 to 7 show a second embodiment of the present invention. The second embodiment is a modification of the bag body 24 that houses the coil spring 23 that constitutes the second spring unit 3. That is, the bag body 23 is formed of heat-meltable fibers as in the first embodiment, and a plurality of bag bodies 23 are integrally formed by the connecting pieces 31.
[0043]
In FIG. 5 and FIG. 6, a plurality of bag bodies 23 forming one row in the column direction or row direction of the second spring unit 3 are connected by a connecting piece 31. FIG. 7A shows a case where a plurality of bag bodies 23 are formed integrally over the entire length in the column direction of the second spring unit 3, and FIG. Shows the case. Further, FIG. 7C shows a case where a part of the bag bodies 24 along the column direction, as shown in FIG. 7, in this embodiment, three bag bodies 24 are integrally formed.
[0044]
In FIG. 7C, the number of integrally formed bag bodies 24 is not limited to three, and may be a part in the row direction, and the number may be two or four or more. Moreover, it may be applied not in the column direction but in the row direction.
[0045]
In this way, if a plurality of bag bodies 24 are integrally formed, productivity can be improved as compared with the case where adjacent bag bodies 24 are thermally welded, and the welded state may be peeled off after long-term use. Therefore, stable performance can be maintained.
[0046]
The nonwoven fabric forming the bag body 24 has flexibility. Therefore, even if the full length in the height direction of the adjacent bag bodies 24 is connected by the connecting piece 31, when a load is partially applied to the second spring unit 3, the coil spring 23 receiving the load is elastically deformed, According to the elastic deformation, the bag body 24 accommodating the coil spring 23 and the bag body 24 connected to the bag body 24 by the connecting piece 31 are deformed.
[0047]
As a result, the coil spring 23 of the portion that receives the load of the second spring unit 3 is elastically deformed according to the load, but the coil springs 23 located near the coil spring 23 are mutually connected to the bag body 24. Even if they are connected, each bag body 24 is deformed, so that it is not greatly elastically deformed.
[0048]
Therefore, even if the full lengths of the adjacent bag bodies 24 are connected by the connecting piece 31, the second spring unit 3 is easily elastically deformed according to the load distribution, so that a soft touch can be given to the user. it can.
[0049]
The present invention is not limited to the above embodiments, and can be variously modified. For example, the first spring unit uses a plurality of spring bodies in which a plurality of spring portions are continuously formed by a single wire so that the load can be distributed almost uniformly over the entire surface. This spring body has an upper connecting rod and a lower connecting rod, and the planar shape of these connecting rods is U-shaped, but the planar shape of the connecting rod may be Z-shaped or E-shaped, The spring portion is not coiled and may be a torsion bar. That is, the spring body only needs to have a configuration in which a local load can be dispersed by continuously forming a plurality of spring portions with a single wire.
[0050]
Further, although the partition member and the bag body of the coil spring of the second spring unit are connected to the frame line of the first spring unit by the clip as the connecting means, the connecting means may be other than the clip. As long as the three members of the partition member and the first and second spring units can be integrally connected. Furthermore, the bag body may be formed of a cloth other than the nonwoven fabric, a synthetic resin sheet, or the like.
[0051]
【The invention's effect】
As described above, according to the present invention, a first spring unit is formed by arranging a plurality of spring bodies in which a plurality of spring portions are continuously formed by a single wire, and this first spring unit. A mattress device was obtained by superposing a second spring unit formed by arranging a plurality of coil springs in a matrix.
[0052]
For this reason, the first spring unit is not elastically deformed locally by distributing the load, and the second spring unit is easily elastically deformed according to the load distribution. Therefore, the combination of these two spring units is soft. Therefore, it is possible to provide a mattress device that can give a comfortable feel and does not cause a partial drop.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing an internal structure of a mattress device according to a first embodiment of the invention.
FIG. 2 is a side view in which a part of the mattress device is broken to show the inside.
FIG. 3A is a perspective view of a spring body forming a first spring unit, and FIG. 3B is a perspective view of a state in which a helical wire is connected to the spring body.
FIG. 4 is a plan view of a part of the first spring unit.
FIG. 5 is a perspective view of a bag body that houses a coil spring according to a second embodiment of the present invention.
FIG. 6 is a front view of a bag body that houses a coil spring.
FIG. 7 is a plan view of a part of a second spring unit.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... 1st spring unit, 3 ... 2nd spring unit, 5 ... Lower elastic material, 6 ... Upper elastic material, 8 ... Exterior body, 13 ... Spring body, 15 ... Spring part, 21 ... Partition member, 23 ... Coil spring, 24 ... bag, 25 ... clip.

Claims (4)

In the mattress device configured by superposing the first spring unit and the second spring unit, laminating sheet-like elastic members on the upper surface and the lower surface of the polymer, and covering them with an exterior ground,
In the first spring unit, a plurality of spring bodies in which a plurality of spring portions are continuously formed by one wire rod are connected in parallel in a rectangular plate shape, and one surface and the other formed by these spring bodies The first frame line is connected to the peripheral part of the surface of
The second spring unit is arranged in a matrix such that a plurality of coil springs housed in a bag are in the shape of a rectangular plate having approximately the same size as the first spring unit, and the coil spring located at the periphery One end in the axial direction is connected by a second frame line,
A sheet-like partition member is provided between the first spring unit and the second spring unit to be superposed, and a peripheral portion of the partition member and one first frame line of the first spring unit and A mattress device, characterized in that it is connected to the other axial end of the coil spring located at the periphery of the second spring unit by a connecting means.   2. The mattress device according to claim 1, wherein the bag body that accommodates each coil spring of the second spring unit is divided, and intermediate portions in the height direction of adjacent bag bodies are connected.   The mattress device according to claim 1, wherein at least a plurality of adjacent bags along the row direction or the column direction of the second spring unit are integrally formed by connecting the entire length in the height direction. The mattress device according to claim 1 , wherein the elastic member laminated on the second spring unit has a surface facing the second spring unit formed as an uneven surface.

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