JP2008079713A - Mattress device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mattress device which has such rigidity as will hardly allow lateral rolling, and hardly gives a feeling of hardness to a user. <P>SOLUTION: This mattress device is provided with a spring unit 1 constituted of a plurality of continuous spring bodies 2 disposed into a rectangular shape in a plan view, helical wires 6 connecting the adjoining continuous spring bodies, and frame wires 7 connected to the upper/lower circumferential edges of upper and lower faces of the rectangular shape formed of the continuous spring bodies. Reinforcing wire rods 11 are connected to the upper/lower faces of the connecting spring bodies in the circumferential parts of the upper/lower faces of the spring unit in parts inward the frame wires. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mattress device including a spring unit configured by arranging a plurality of spring bodies so that a planar shape thereof is substantially rectangular.

  A mattress device used for a bed or the like includes a spring unit. In the spring unit, a plurality of spring bodies such as coil springs are arranged so that the planar shape is rectangular so that the planar shape is almost rectangular, and the upper end surface and the lower end surface of adjacent spring bodies are respectively connected by helical lines. In addition to being connected, a frame line is connected to the periphery of the upper and lower surfaces. The mattress device is configured by laminating sheet-like elastic materials on the upper and lower surfaces of the spring unit configured as described above, and covering these laminated bodies with an exterior body.

  The mattress device having the above configuration is usually configured using a spring body having the same deformation amount with respect to a load. Therefore, the whole spring unit has the same hardness (cushioning property) according to the hardness of the spring body.

  If the spring unit is formed of a hard spring body that has a small deformation amount with respect to the load, the user may feel that the user feels stiff when the user lies, or the user who lies supine because of being too hard. There is a case where the sleeping comfort is lowered because the buttock is pushed up to be in a sleeping posture.

  If the spring unit is composed of a soft spring body having a relatively large deformation amount with respect to the load, a soft touch is exhibited when the user lies on his back. However, if the spring unit is formed of a soft spring body, the rigidity of the spring unit as a whole is greatly reduced even if the user can have a soft feel. For this reason, the spring unit may easily vibrate in the lateral direction and the stability may be lowered, or the amount of deformation with respect to the load may be increased and the sleeping comfort and stability may be lowered.

  In other words, the spring unit constituting the mattress device is desired to have both softness that gives a good feel to the user and rigidity that reliably supports the user's body.

In Patent Document 1, coil springs as spring bodies are arranged in a matrix, and a frame unit is connected to the peripheral portions of the upper and lower surfaces to form a spring unit. For example, the reinforcing body is provided along the width direction of the spring unit.
According to such a configuration, since the reinforcing body elastically deforms integrally with the coil spring of the spring unit, it can be hardened without impairing the soft touch.
JP-A-63-257516

  By the way, when the reinforcement body which consists of a foaming elastic body is provided between the coil springs of the spring unit arrange | positioned like a matrix like patent document 1, when a coil spring receives load, the coil spring will be reinforced with a reinforcement body. Therefore, it becomes difficult to elastically deform, so that the user feels the hardness of the spring unit.

  However, since the spring unit is only partially reinforced by the reinforcing body and cannot increase the rigidity of the entire spring unit, the lateral vibration of the spring unit cannot be reduced. In some cases, the load cannot be reliably supported when receiving a large load locally.

  An object of the present invention is to provide a mattress device that can increase the rigidity of the entire spring unit and also has a suppleness that allows the spring unit to give a soft touch to the user.

The present invention is connected to a plurality of spring bodies arranged so that the planar shape is rectangular, a helical wire connecting adjacent spring bodies, and a peripheral edge portion of the rectangular upper and lower surfaces formed by the spring bodies. A mattress device having a spring unit constituted by a frame line,
The mattress device is characterized in that reinforcing wire rods are connected to the upper and lower surfaces of the spring body at peripheral portions of the upper and lower surfaces of the spring unit and inside the frame line.

  It is preferable that the spring bodies disposed at both ends in the width direction of the spring unit are harder than spring bodies disposed at other portions.

  The reinforcing wire is formed in a substantially U shape by a long portion along the longitudinal direction of the spring unit and a short portion along the width direction of the spring unit. It is preferable that the reinforcing wire is arranged with the tips of the short portions spaced apart at a predetermined interval.

  It is preferable that a side reinforcing spring having one end and the other end connected to a frame line on the upper surface and the lower surface of the spring unit is provided on a side surface of the spring unit.

The spring body is a continuous spring body in which a plurality of coil portions are continuously formed by upper and lower connecting hook portions respectively with a single wire,
The spring unit has a plurality of continuous spring bodies arranged in the width direction, and the long portion of the reinforcing wire is connected to the end face of the coil portion of the second row of continuous spring bodies from the outside in the width direction. It is preferable.

  It is preferable that the continuous spring bodies disposed at both ends in the width direction of the spring unit are formed of a wire having a thicker wire diameter than the other spring bodies.

  According to this invention, since the reinforcing wire is provided in the peripheral portion of the upper and lower surfaces of the spring unit and inside the frame line, the peripheral portion of the spring unit is reinforced by the reinforcing wire. Therefore, not only the rigidity of the spring unit as a whole is improved and rolling does not easily occur, but also the flexibility of the spring body in the portion other than the peripheral portion can be maintained.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a partially broken front view showing an internal structure of the mattress device, and this mattress device includes a spring unit 1 having a rectangular planar shape as shown in FIG. The spring unit 1 is configured as described later by a plurality of continuous spring bodies 2 as spring bodies. In FIG. 2, the upper half shows the upper surface which is one surface of the spring unit 1, and the lower half shows the lower surface which is the other surface.

  As shown in FIGS. 5 and 6, the continuous spring 2 is formed by arranging a plurality of coil portions 3 side by side with one wire, and the upper ends of adjacent coil portions 3 are connected by an upper connecting rod 4. The lower ends are connected by a lower connecting rod 5. That is, the plurality of coil portions 3 are continuously formed by the upper connecting rod 4 and the lower connecting rod 5, and the adjacent coil portions 3 are entangled with each other in the axial direction.

  As shown in FIG. 2, the plurality of continuous spring bodies 2 formed in a predetermined length as described above have their longitudinal directions aligned with the longitudinal direction of the spring unit 1, which is a predetermined direction. They are arranged at a predetermined interval with respect to the width direction orthogonal to the longitudinal direction.

  The upper and lower end portions of each continuous spring body 2 arranged in the width direction are connected to the upper end surface and the lower end surface of the adjacent coil portions 3 by helical wires 6 provided along the width direction of the spring unit 1. . Then, the peripheral edges of the upper and lower surfaces of the rectangular shape formed by the plurality of continuous spring bodies 2 arranged at predetermined intervals are each formed by a wire having a larger wire diameter than the continuous spring bodies 2 as shown in FIGS. The frame line 7 is connected to the upper connecting collar 4 and the lower connecting collar 5 of the continuous spring body 2 by a clip 8.

  As shown in FIG. 2, the positions of the upper end surface and the lower end surface of adjacent coil portions 3 of each continuous spring body 2 are shifted with respect to the longitudinal direction of the continuous spring body 2. Therefore, the positions of the helical wires 6 that connect the adjacent continuous spring bodies 2 are shifted with respect to the longitudinal direction of the continuous spring bodies 2 on the upper surface and the lower surface of the pulling unit 1.

  The pair of continuous spring bodies 2 positioned at both ends in the width direction of the spring unit 1 are formed of a wire having a larger wire diameter than the other continuous spring bodies 2. As a result, the continuous spring bodies 2 positioned at both ends in the width direction of the spring unit 1 are less deformed with respect to the load than the other continuous spring bodies 2. That is, the continuous spring bodies 2 at both ends in the width direction of the spring unit 1 are formed to be harder than the other continuous spring bodies 2.

  The continuous spring body 2 other than both ends in the width direction of the spring unit 1 (referred to as a center portion in the width direction) is formed of a wire material obtained by subjecting a hard steel wire to superlamellar processing. The metal composition of the wire material subjected to the super-lamellar processing is uniform.

  As a result, the continuous spring body 2 positioned in the center portion in the width direction is compliant with the thin wire diameter compared to the continuous spring bodies 2 positioned at both ends in the width direction, but has durability that is difficult to sag. . That is, the continuous spring body 2 has not only flexibility but also durability equal to or greater than that of the continuous spring body 2 having a large wire diameter located at both ends in the width direction.

  A pair of reinforcing wires 11 are provided on the upper surface of the spring unit 1 shown in FIG. 2 and the peripheral portion of the lower surface shown in FIG. As shown in FIG. 8, the reinforcing wire 11 has a long part 11a and a pair of short parts bent in an L shape at both ends of the long part 11a by a wire having the same diameter as that of the frame wire 7. It is formed in a U shape having 11b.

As shown in FIG. 5, the reinforcing wire 11 has a long portion 11 a on the upper end surface and the lower end surface of the coil portion 3 of the continuous spring body 2 positioned in the second row from the outside in the width direction of the spring unit 1. The pair of short portions 11b are connected by clips 8 to the upper end surface and the lower end surface of the pair of coil portions 3 located at both ends in the longitudinal direction of the continuous spring bodies 2 arranged side by side.
In addition, the front-end | tip of the short part 11b of a pair of reinforcing wire 11 provided in the upper surface and lower surface of the spring unit 1 is spaced apart by predetermined spacing.

  Side reinforcing springs 12 are provided in the middle portions in the longitudinal direction of the four side surfaces of the outer peripheral surface of the spring unit 1 as shown in FIGS. The side reinforcing spring 12 is formed of a hard steel wire and an inclined portion 12a and a pair of horizontal portions 12b continuous at both ends of the inclined portion 12a. The pair of horizontal portions 12b are formed on the peripheral edges of the upper and lower surfaces of the spring unit 1. Each of the provided frame lines 7 is connected by a clip 8.

  The length of the inclined portion 12a is set so as to be inclined with respect to the frame line 7 at an angle of 15 to 20 degrees. As a result, when a load is applied to the frame line 7, the inclined portion 12a of the side reinforcing spring 12 is elastically bent with respect to the horizontal portion 12b and receives the load.

  As shown in FIG. 1, elastic members 14 such as urethane foam and compressed cotton are laminated on the upper and lower surfaces of the spring unit 1 having the above-described configuration via a protective material 13 having wear resistance such as sisal. The body is covered with an exterior body 15.

  The exterior body 15 has a pair of mirrors 16 covering the upper and lower surfaces of the spring unit 1 and a town 17 covering the outer peripheral surface, and the peripheral parts of the pair of mirrors 16 at the upper and lower ends of the town 17. Are connected by a tape 18.

  According to the mattress device having the above-described configuration, the pair of reinforcing wires 11 are provided on the peripheral portions of the upper and lower surfaces of the spring unit 1. The long portion 11 a of the reinforcing wire 11 is connected to the end surface of the coil portion 3 of the continuous spring body 2 in the second row from both ends in the width direction of the spring unit 1, and the short portion 11 b is the longitudinal direction of the plurality of continuous spring bodies 2. It connects with the adjacent part of the end surface of a pair of coil part 2 of both ends.

  Therefore, by reinforcing the peripheral portion of the spring unit 12 with the reinforcing wire 11, not only the rigidity in the thickness direction of the peripheral portion is increased, but also the rigidity in the width direction of the spring unit 1 is improved. 1 becomes difficult to vibrate laterally. That is, when the spring unit 1 receives a load, the shaking in the lateral direction is reduced, so that the sleeping comfort is improved.

  The reinforcing wire 11 is provided on the periphery of the spring unit 1 inside the frame 7. Therefore, the load applied to the peripheral part of the spring unit 1 is transmitted to the spring unit 1 through the frame line 7 and the reinforcing wire 11. The reinforcing wire 11 is provided over almost the entire periphery of the spring unit 1.

  Therefore, when a large load is partially applied to the peripheral portion of the spring unit 1, the load is distributed to the entire peripheral portion of the spring unit 1 by the frame line 7 and the reinforcing wire 11. Is prevented from being largely compressed and deformed.

  That is, by providing the reinforcing wire 11 on the plate surface of the spring unit 1, the load applied to the peripheral portion of the spring unit 1 is received by the plane between the reinforcing wire 11 and the frame wire 7. The peripheral portion of the material has a hardness that is difficult to compressively deform locally with respect to a large load.

  Since the continuous spring bodies 2 positioned at both ends in the width direction of the spring unit 1 are formed of thicker wires than the other continuous spring bodies 2, the rigidity is high. If the rigidity of both end portions in the width direction of the spring unit 1 is high, the spring unit 1 is less likely to shake in the lateral direction, which can improve the stability and provide the spring unit 1 with good sleeping comfort.

  The four side surfaces of the outer peripheral surface of the spring unit 1 are provided with side reinforcing springs 12 that reinforce the respective side surfaces, and the side surfaces of the spring unit 1 are reinforced by these side reinforcing springs 12. Therefore, since the rigidity of the outer peripheral surface of the spring unit 1 is enhanced by the side reinforcing springs 12, the spring unit 1 can be provided with stability that is not easily shaken in the lateral direction.

Thus, the spring unit 1 is reinforced at the periphery by the frame edge 7, the reinforcing wire 11, and the side reinforcing spring 12, and the continuous spring bodies 2 at both ends in the width direction are made thicker than the other continuous spring bodies 2. The peripheral part is also reinforced by using it.
If the peripheral part is reinforced, the spring unit 1 does not easily roll as described above, and the entire peripheral part of the spring unit 1 can be used effectively. The effective use area of the spring unit 1 that can be used in a stable state without being damaged can be expanded.

  The continuous spring bodies 2 other than both ends in the width direction of the spring unit 1 are formed more supple than the continuous spring bodies 2 provided at both ends in the width direction. Therefore, the spring unit 1 is provided at the central portion other than both ends in the width direction, although it has sufficient rigidity to reinforce the peripheral portion and maintain a stable shape with little roll as a whole. Since the continuous spring body 2 has flexibility, it can provide a comfortable cushioning property that does not make the user feel hardness by the flexibility.

  In the above embodiment, two U-shaped reinforcing frame wires are provided on the upper and lower surfaces of the spring unit. However, rectangular frame-shaped reinforcing wires are provided on the upper and lower surfaces of the spring unit. It may be.

  Moreover, although the continuous spring body was mentioned as an example as a spring body which comprises a spring unit, it may replace with a continuous spring body and may be other spring bodies, such as a coil spring.

The front view which shows the inside of a partial cross section of the mattress device. The top view of the spring unit which shows one side of a spring unit in the upper half and the other side in the lower half. The side view of the longitudinal direction of a spring unit. The side view of the width direction of a spring unit. The front view which expands and shows a part of reinforcement wire attached to the end surface of a continuous spring body. The side view which expands and shows a part of continuous spring body. The figure which shows a side part reinforcement spring. The figure which shows a reinforcement wire.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Spring unit, 2 ... Continuous spring body, 6 ... Helical wire, 7 ... Frame wire, 11 ... Reinforcement wire, 12 ... Side part reinforcement spring

Claims (6)

A plurality of spring bodies arranged so that the planar shape is rectangular, a helical line connecting adjacent spring bodies, and a frame line connected to the peripheral edge of the rectangular upper and lower surfaces formed by the spring bodies, respectively A mattress device having a configured spring unit,
A mattress device, wherein a reinforcing wire is connected to the upper and lower surfaces of the spring body in a peripheral portion of the upper and lower surfaces of the spring unit and inside the frame line.   The mattress device according to claim 1, wherein the spring bodies disposed at both ends in the width direction of the spring unit are harder than spring bodies disposed at other portions.   The reinforcing wire is formed in a substantially U shape by a long portion along the longitudinal direction of the spring unit and a short portion along the width direction of the spring unit. The mattress device according to claim 1, wherein the reinforcing wire is arranged with the tips of the short portions spaced apart at a predetermined interval.   The mattress device according to claim 1, wherein a side reinforcing spring having one end and the other end connected to a frame line on an upper surface and a lower surface of the spring unit is provided on a side surface of the spring unit. The spring body is a continuous spring body in which a plurality of coil portions are continuously formed by a connecting rod portion at upper and lower ends with a single wire,
The spring unit has a plurality of continuous spring bodies arranged in the width direction, and the long portion of the reinforcing wire is connected to the end face of the coil portion of the second row of continuous spring bodies from the outside in the width direction. The mattress device according to claim 3.   6. The mattress device according to claim 5, wherein the continuous spring bodies disposed at both ends in the width direction of the spring unit are formed of a wire material having a larger wire diameter than other spring bodies.

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