JP2019181137A - Mattress device - Google Patents

Abstract

To provide a mattress device whose outer shape is not spoiled in expansion in a flat plate shape in the case of rolling it in a roll-like state and storing it in a warehouse and delivering it.SOLUTION: A mattress device has a spring unit 1, and can be held by rolling the spring unit in a roll state along a longitudinal direction. The spring unit is composed of: a plurality of spring bodies 2 in which a plurality of coil parts 4 are formed continuously to an upper connection rod part 5 and a lower connection rod part 6 by one wire, and which are arranged by aligning in a width direction crossing the longitudinal direction of the spring unit 1 so as to make a planar shape rectangular; and a connection member 11 which is provided along the width direction in at least one end or the other end in the longitudinal direction, excluding both sides in the width direction of the spring unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a mattress device that can be rolled and handled when stored in a warehouse before delivery or when transported during delivery.

  In general, the mattress device is inconvenient to handle because it has a large planar shape and is bulky. Therefore, for example, when the product is produced in a factory and then stored in a warehouse or the like, the utilization efficiency of the warehouse is reduced. In addition, the delivery efficiency may be reduced due to the difficulty of handling when delivering to customers.

  Therefore, it has been considered that the mattress device can be wound and handled in a roll shape during storage or transportation. As a mattress device that can be handled by being wound in a roll shape, for example, one having a structure shown in Patent Document 1 is known.

  The mattress device disclosed in Patent Document 1, that is, a mattress with a built-in spring, has a rectangular frame. On the upper and lower surfaces of the frame, a stretch material made of compressed resin cotton, a sheet-like urethane, and a knit fabric are sequentially laminated. The knitted fabric has a structure in which knitted fibers, urethane and nonwoven fabric are laminated.

  In the frame, there is provided a spring structure in which pocket coils are arranged in a matrix, and bags of pocket coils adjacent in the lateral direction are connected to each other by means such as adhesion.

  The mattress device having the above-described configuration is handled by being wound in a roll shape along the longitudinal direction during transportation or storage.

JP 2017-121587 A

  By the way, when the mattress device having the above-described configuration is wound in a roll shape, it is inevitable that stress is generated between the connected pocket coils of the spring structure provided in the frame.

  Therefore, when the mattress device is wound in a roll shape, the connection state of the pocket coils that are adjacent to each other may be impaired. As a result, when the mattress device is deployed in a flat shape during use, etc., the cushioning performance of the spring structure is reduced because the arrangement state of the pocket coil in which the connection state is impaired does not shift and return to the original position, It may be difficult to use or the appearance shape may be impaired.

  As a conventional example, the mattress device using the pocket coil as described above has been described as an example. However, other non-continuous springs include, for example, a Bonnell spring, and a non-Bonnel spring or the like. Even a spring unit using a continuous spring has the same problem as a mattress device using a pocket coil.

  Even if the mattress device is wound in a roll shape and then deployed in a flat shape, the spring unit constituting the spring unit does not move back and the cushioning performance and appearance of the spring unit are not restored. An object of the present invention is to provide a mattress device in which the shape is not damaged.

The present invention is a mattress device having a spring unit and capable of holding the spring unit in a roll shape along the longitudinal direction,
The spring unit is
A plurality of coil portions are continuously formed by the upper connecting hook portion and the lower connecting hook portion by one wire, and are arranged side by side in the width direction intersecting with the longitudinal direction of the spring unit so that the planar shape is rectangular. A plurality of spring bodies;
A mattress device comprising: a connecting member provided along at least one of one end and the other end in the longitudinal direction excluding both sides in the width direction of the spring unit along the width direction.

  According to the present invention, the spring unit includes a plurality of spring bodies in which a plurality of coil portions are continuously formed by a single wire rod by the upper connecting hook portion and the lower connecting hook portion, and the longitudinal direction of the spring unit. It is arranged side by side in the width direction that intersects.

  Therefore, after the roll unit is rolled in the longitudinal direction of the spring unit of the mattress device and conveyed or stored, the spring body continuously formed by one wire is used even when deployed in a planar shape during use. Since the plurality of coil portions do not cause displacement, it is possible to prevent the performance and appearance of the mattress device from being damaged after deployment.

The perspective view of the mattress device showing one embodiment of this invention. FIG. 3 is a side view showing a part of the mattress device in cross section. (A) is a top view of the spring unit used for the said mattress apparatus, (b) is a side view similarly. The perspective view which shows a part of spring body used for a spring unit. The enlarged view which shows the connection structure of the edge part of the longitudinal direction of the said spring body, and the tube-shaped connection member connected with this edge part. The perspective view which shows a part of said spring unit. The perspective view of the state which wound the said mattress apparatus compressed in roll shape, and accommodated it in the bag for vacuum packs.

  An embodiment of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a mattress device M, and the mattress device M includes a spring unit 1 having a rectangular planar shape as shown in FIGS. 2 and 3A and 3B. The spring unit 1 has a plurality of spring bodies 2 arranged side by side as shown in FIG.

  The plurality of spring bodies 2 are connected as described later by a plurality of elastic helical wires 3 provided along the width direction of the spring unit 1 intersecting the juxtaposed direction. The helical wire 3 is provided at a predetermined interval with respect to the longitudinal direction of the spring body 2, that is, the longitudinal direction of the spring unit 1.

  As shown in FIG. 4, the spring body 2 is formed with a plurality of coil portions 4 which are arranged in parallel in a vertical direction with a wire such as a steel wire. The upper ends of a pair of adjacent coil parts 4 are connected so as to be continuous by the upper connecting hook part 5, and the lower ends are connected so as to be continuous by the lower connecting hook part 6. That is, the upper ends and the lower ends of a pair of adjacent coil portions 4 are alternately connected by the upper connecting flange portion 5 and the lower connecting flange portion 6.

  And the said helical wire 3 is each screwed together by the upper end and lower end of the said coil part 4 of the said spring body 2 adjacent in the juxtaposed state, and is provided along the arrangement direction of the said spring body 2. As shown in FIG. Thereby, the adjacent spring bodies 2 are connected to the width direction of the spring unit 1.

  In the spring body 2, the coil part 4, the upper connecting collar part 5, and the lower connecting collar part 6 are continuously formed from a single wire by a spring molding machine (not shown).

  The spring body 2 is cut when it is molded to a predetermined length by the spring molding machine, that is, a length corresponding to the spring unit 1. Therefore, both ends of the spring body 2 in the longitudinal direction are in a sharp state with the upper connecting collar 5 and the lower connecting collar 6 being cut.

  As shown in FIGS. 3 and 6, one end and the other end in the longitudinal direction of the spring unit 1, and an upper end and a lower end in the height direction of the spring body 2, A connecting member 11 is provided over the corner portion. As shown in FIGS. 5 and 6, the connecting member 11 is provided by being connected to a longitudinal end of the spring body 2 by a clip 12.

  In other words, the connecting member 11 is a longitudinal cutting portion of the spring body 2 that is generated at one end and the other end of the spring body 2 when the spring body 2 is cut to a predetermined length. It is connected and held by the clip 12 at the end.

  The end of the spring body 2 in the longitudinal direction may be the upper connection flange 5, the lower connection flange 6, or the coil portion 4.

  As shown in FIG. 5, the connecting member 11 is formed in a tube shape by a synthetic resin such as polyethylene as an elastic material. As a result, the upper and lower ends of both ends of the spring unit 1 in the longitudinal direction, that is, the plurality of adjacent spring bodies 2 have elasticity of the synthetic resin forming the connecting member 11, and the connecting member 11 is tube-shaped. It is elastically connected and held by elasticity.

  The spring unit 1 is covered with an exterior body 14. As shown in FIG. 2, the exterior body 14 has a mirror 14a that covers the upper and lower surfaces of the spring unit 1, an outer peripheral surface, and a town 14b that has upper and lower ends sewn to the peripheral edge of the mirror 14a. It is formed in a shape.

  On the upper and lower surfaces of the spring unit 1, a protective material 15 such as sisal or compressed cotton and an elastic sheet 16 such as urethane foam are sequentially laminated. The laminate is covered with the exterior body 14.

  In addition, you may make it laminate | stack only compression cotton on the upper and lower surfaces of the said spring unit 1 instead of the said protective material 15 and the said elastic sheet 16, and the structure of the said laminated body is not limited.

  The mattress device M configured as described above is sent to a compression device (not shown) by a feed device (not shown) and compressed to a predetermined thickness. The mattress device M is stored in the vacuum pack bag 17 as the compression holding means shown in FIG. 7 in a state where the compressed thickness is held. After the pressure is reduced, the vacuum pack bag 17 is sealed to maintain the compressed thickness.

  Next, the mattress device M housed in the vacuum pack bag 17 is wound in a roll shape, and is held in a warehouse after being kept in a roll shape by being held by a band. Then, it is loaded on the transport vehicle and transported to the shipping destination.

  When the mattress device M is wound in a roll shape while being compressed, a stress opposite to the force of winding the mattress device M is generated in the plurality of spring bodies 2 along the longitudinal direction of the spring body 2.

  Therefore, the spring body 2 may move in the longitudinal direction due to the stress. In particular, since a large stress is generated at the beginning of bending of the mattress device M, the spring body 2 may be easily displaced.

  By the way, the connecting member 11 is provided at one end and the other end in the longitudinal direction of the spring unit 1 so as to be connected by the clip 12 over one end and the other end of the plurality of spring bodies 2.

  Therefore, when the mattress device M is wound in a roll shape, even if a relatively large stress is generated along the longitudinal direction in the plurality of spring bodies 2 at the beginning of the winding, the spring bodies 2 are not easily displaced but also displaced. The connecting member 11 is elastically deformed.

  If the spring body 2 of the spring unit 1 is displaced in the longitudinal direction, the stress generated in the spring body 2 is absorbed, so that the spring unit 1 of the mattress device M wound in a roll shape is absorbed. Stress is hard to accumulate.

  If a large stress is accumulated in the spring unit 1, the spring unit 1 may be deformed into a waved state due to the stress.

  However, as described above, since it is difficult for stress to be accumulated in the spring unit 1 wound in a roll shape, when the mattress device M is deployed in a flat plate shape after delivery, the spring unit 1 of the mattress device M accumulates. It is prevented from being deformed into a wavy state by the applied stress.

  That is, even if the mattress device M is wound around a roll place and then used after being developed into a flat plate shape, the outer shape of the developed mattress device M is prevented from being damaged.

  Moreover, by winding the mattress device M in a roll shape, the plurality of spring bodies 2 may move in the longitudinal direction. However, since the connecting member 11 has elasticity, when the mattress device M is deployed, the longitudinal displacement of the spring body 2 is easily corrected. Therefore, the end surface shape of the mattress device M may not be easily damaged.

  That is, since the connecting member 11 is formed of an elastic tube-like material, it has both the elasticity of the material and the elasticity generated by the tube shape, so that the elasticity of the spring body 2 is Deformation and displacement can be prevented.

  The elastic connecting members 11 are connected to the upper and lower ends of the longitudinal end portion of the spring unit 1 by the clip 12. Therefore, even if the spring body 2 is displaced, the sharp end portion thereof moves together with the connecting member 11, so that the sharp end portion of the spring body 2 is moved by the connecting member 11. Protruding outside from 14b is prevented.

  The spring body 2 is continuously formed by alternately connecting a plurality of the coil portions 4 with an upper connecting collar portion 5 and a lower connecting collar portion 6 by a single wire. That is, the plurality of coil portions 4 of the spring body 2 are integrally formed so as not to be separated. Therefore, even if the mattress device M is wound into a roll shape and then expanded into a flat plate shape, a plurality of coil portions 4 provided on one spring body 2 are bonded and arranged in parallel. There is no possibility that the positional relationship is shifted as in the case of conventional pocket coils.

  When the mattress device M is compressed and wound in a roll shape, the spring unit 1 is bonded when a plurality of pocket coils are bonded and juxtaposed as in the prior art, when being compressed or wound in a roll shape. Further, there is a possibility that the pocket coils are separated from each other.

  However, in the spring body 2 of the spring unit 1, a plurality of coil portions 4 are continuously formed by a single wire. Therefore, when the mattress device M is compressed or wound in a roll shape, the plurality of coil portions 4 of the spring body 2 are separated as in the prior art, and there is no occurrence of displacement after deployment.

  In addition, by winding the mattress device M in a roll shape, the plurality of adjacent spring bodies 2 may move slightly in the winding direction, that is, in the longitudinal direction of the mattress device M, but may shift. However, since the end portions in the longitudinal direction are connected by the connecting member 11, it is easy to return to the original position by expanding.

  Therefore, even if the mattress device M is wound into a roll shape and then deployed into a flat plate shape, the position of the coil portion 4 of the spring body 2 forming the spring unit 1 is not shifted. The performance and appearance shape of the deployed mattress device M are not impaired.

  Further, since the plurality of spring bodies 2 arranged side by side are elastically connected by the helical wires 3 provided along the direction of arrangement, the plurality of spring bodies 2 are also arranged in the longitudinal direction. It may be difficult to move.

  In the above-described embodiment, the connecting members 11 are provided at both ends of the spring unit 1 in the longitudinal direction. However, when the mattress device M starts to be wound around the spring unit 1, the winding starts. Since a large stress is likely to be generated at one end on the side, the connecting member 11 may be provided only at one end on the winding start side.

  The connecting member 11 is made of a synthetic resin, which is an elastic material, formed into a tube shape. However, an elastic material other than a synthetic resin may be used, and the shape is not limited to a tube shape, but is solid or It may be in the form of a rope bundled with thin threads.

  Further, when the connecting member 11 is formed of an elastic material, the connecting member 11 is provided not only at the longitudinal end of the spring unit 1 but also over the entire length of one or both of the peripheral edges of the upper and lower surfaces. However, this does not hinder the mattress device M from being rolled.

  Moreover, although the said connection member 11 gave and demonstrated the example using the thing formed with the elastic material, when providing only in the edge part of the longitudinal direction of the said spring unit 1, the said connection member 11 is steel materials or a hard synthetic | combination. You may make it use what was formed with hard materials, such as resin.

  Moreover, in one Embodiment mentioned above, when providing the connection member in the edge part of the longitudinal direction of the said spring unit 1, and winding the mattress apparatus M in roll shape, when it expand | deploys in flat form, the some spring body 2 is formed. It was made to prevent it from moving out of position.

  However, even if the connecting member is not provided in the spring unit 1, the plurality of coil portions 4 of the spring body 2 are continuously formed by one wire, and the plurality of spring bodies 2 are arranged in parallel. Since the mattress device M is wound in a roll shape and connected to the wire 3, the plurality of spring bodies 2 and the plurality of coil portions 4 of each spring body 2 remain displaced even when the mattress device M is rolled up. Can be prevented.

  Moreover, although the above-described mattress device M has been described as an example in which the elastic sheet is not provided on the outer peripheral surface of the spring unit, the mattress device M having a structure in which an elastic sheet is provided on the outer peripheral surface as well as the upper and lower surfaces. It may be.

  DESCRIPTION OF SYMBOLS 1 ... Spring unit, 2 ... Spring body, 3 ... Helical wire, 4 ... Coil part, 5 ... Upper connection collar part, 6 ... Lower connection collar part, 11 ... Connection member, 12 ... Clip, 14 ... Exterior body.

Claims (7)

A mattress device having a spring unit and capable of holding the spring unit in a roll shape along the longitudinal direction,
The spring unit is
A plurality of coil portions are continuously formed by the upper connecting hook portion and the lower connecting hook portion by one wire, and are arranged side by side in the width direction intersecting with the longitudinal direction of the spring unit so that the planar shape is rectangular. A plurality of spring bodies;
A mattress device comprising: a connecting member provided along at least one of one end and the other end in the longitudinal direction excluding both sides in the width direction of the spring unit along the width direction.   2. The mattress device according to claim 1, wherein the connecting member is provided to be connected to an upper end and a lower end of the spring body positioned at both ends in the longitudinal direction of the spring unit.   The mattress device according to claim 1, wherein the connecting member is made of a synthetic resin.   The mattress device according to claim 3, wherein the plurality of the spring bodies arranged side by side are connected to each other at an upper end and a lower end in the height direction of the spring body by a helical line provided along the arrangement direction. . A mattress device having a spring unit and capable of holding the spring unit in a roll shape along the longitudinal direction,
The spring unit is
A plurality of coil parts are continuously formed by an upper connecting hook part and a lower connecting hook part by a single wire,
The mattress device, wherein the plurality of spring bodies have a plurality of coil portions arranged along a longitudinal direction of the spring unit so that a planar shape thereof is rectangular, and are arranged side by side in the width direction of the spring unit.   The mattress device according to claim 5, wherein a connecting member formed of a flexible material is provided on a peripheral edge portion of the upper and lower surfaces of the spring unit over the entire circumference.   The mattress device according to claim 1 or 5, wherein the spring unit is compressed in the thickness direction and is wound and held in a roll shape in a state where the compressed state is maintained.

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