JP2003079485A - Mattress equipment - Google Patents

Abstract

(57) [Problem] To provide a mattress device in which, when a flexible portion is formed by disconnecting a coil portion of a spring unit by a helical wire, the coil portion is prevented from varying. is there. SOLUTION: Flexible portions 31 to 33 formed by removing connection of lower end surfaces of adjacent coil portions 24 by a helical wire 28 on a lower surface in the longitudinal direction of a spring unit 22 are formed.
And a plurality of lower frame lines 36 to 40 provided along the peripheral edge of each region formed by the lower end surfaces of the coil portions of the plurality of portions divided by the flexible portion, and an upper surface of the spring unit. Upper frame lines 41 to 44 provided on the periphery in a manner corresponding to the lower frame line, an upper cushion material laminated on at least the upper surface of the upper and lower surfaces of the spring unit, the cushion material and the spring And a package covering the laminate with the unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress device suitable for a back-up type bed.

[0002]

2. Description of the Related Art Generally, in a mattress device, springs are arranged in a rectangular shape to form a spring unit, sheet-like cushioning materials are laminated on at least the upper and lower surfaces of the spring unit, and the laminated body is formed into a bag shape. It is configured by being covered with the formed exterior body.

Since the peripheral portion of the spring unit is softer than the central portion, the peripheral portion of the upper and lower surfaces of the spring unit is hard in order to reinforce that portion and maintain the outer shape of the mattress device. A frame line formed by a wire rod is provided.

The mattress device having the above structure is used by being placed on the floor plate of the bed. Beds have wake-up beds that are used by people who have difficulty getting up by themselves, such as the sick and the elderly.

In a wake-up type bed, a floor plate is divided into a plurality of floor portions, a floor portion substantially in the center in the longitudinal direction is fixed to a base of the bed, and the other floor portions are fixed to the base sequentially on both sides of the floor portion. It is rotatably connected.

Each of the rotatably provided floors is driven up and down by a drive unit. As a result, the user lying on the mattress has his or her upper body raised or the legs bent by the floor plate driven to move up and down.

The mattress device used for such a wake-up bed must be constructed so that it can be bent according to the undulations of each floor. However, in the spring unit, the upper and lower end surfaces of adjacent springs are connected by helical lines. Therefore, when the mattress device is bent, the helical wire blocks the bending of the spring unit, so that the mattress device may not be smoothly bent.

Further, as described above, frame lines are provided over the entire length at the peripheral portions of the upper and lower surfaces of the spring unit. Therefore, the frame line is also a factor that prevents the spring unit from smoothly bending in accordance with the ups and downs of the floor.

[0009] Therefore, the applicant of the present invention, the utility model registration No. 2
A mattress device shown in Japanese Patent No. 568886 was proposed. In the mattress device shown in this publication, a plurality of continuous spring bodies are arranged in parallel to form a spring unit, and a coil portion as a spring portion of the continuous spring body located at a bent portion of the spring unit has a width of the spring unit. Remove the helical lines that connect along the direction. As a result, the mattress device can be smoothly bent from the portion where the connection by the helical wire is removed.

[0010]

However, when the helical wire is removed from the bent portion of the spring unit, the coil portions of the removed portion become disjointed, which impairs the stability when the spring unit is not bent. In some cases, the adjacent coil portions become entangled with each other during repeated bending, which also impairs the stable performance of the spring unit.

On the other hand, in the mattress device disclosed in this publication, a side elastic material is foamed and integrally provided on the outer peripheral portion of the spring unit, and the peripheral portion of the spring unit is reinforced by the side elastic material. Because
It is not shown that a frame line is provided on the peripheral portion of the spring unit.

Therefore, in the case of a spring unit using a frame line, how to secure the bendable flexibility of the spring unit while maintaining the performance of the spring unit by the frame line becomes a problem.

According to the present invention, in the spring unit using the frame line, even if the connection of the spring by the helical line is released, the respective springs do not vary, and the frame line prevents smooth bending of the spring unit. The purpose of the present invention is to provide a mattress device that eliminates the above problems.

[0014]

According to a first aspect of the present invention, there is provided a spring unit in which a plurality of spring portions are arranged in a rectangular shape, and upper and lower end surfaces of spring portions which are adjacent to each other in the longitudinal direction are connected by a helical line in the width direction. In the mattress device having, a flexible portion which is formed by removing the connection of the lower end surfaces of the adjacent springs by the helical line on the lower surface of the intermediate portion in the longitudinal direction of the spring unit, and a flexible portion which allows the bending of the spring unit, and the flexible portion. A plurality of lower frame lines provided along the peripheral edge of each region formed by the lower end surfaces of the spring parts of the plurality of parts divided as boundaries, and the lower frame line corresponding to the peripheral edge of the upper surface of the spring unit. And the upper frame line which is divided and provided, and the upper and lower surfaces of the above spring unit are stacked on at least the upper surface. And Deployment material, in the mattress apparatus characterized by comprising an exterior body coated with the laminate of this cushion member and the spring unit.

According to a second aspect of the present invention, the mattress device according to the first aspect is characterized in that the flexible portion is provided with a cushioning sheet for preventing the spring portions divided by the flexible portion from colliding with each other. It is in.

According to a third aspect of the present invention, a lower cushion material is provided on the lower surface of the spring unit, and the lower cushion material is divided into a size corresponding to the region divided by the flexible portion. Claim 1
The mattress device described.

The invention according to claim 4 is characterized in that the exterior body is capable of expanding and contracting along at least the longitudinal direction of at least the longitudinal direction and the width direction of the spring unit. Located on the mattress device.

According to the present invention, the lower frame line can prevent the spring portion from which the connection by the helical wire is removed from varying, the lower frame line is divided corresponding to the flexible portion, and the upper frame line is the lower frame. Since it is divided corresponding to the line, the upper and lower frame lines can reinforce the peripheral portion of the spring unit without impairing the flexibility of the spring unit.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 7 shows a wake-up bed 1. The wake-up bed 1 is formed in a rectangular frame shape, and includes a base 2 having a headboard 3a at one longitudinal end and a footboard 3b at the other longitudinal end. Casters 4 with stoppers are provided at the four corners of the lower surface of the base 2 to support the base 2 so that the base 2 can travel.

A floor plate 5 is provided on the upper surface of the base 2. A plurality of floor plates 5 are provided along the longitudinal direction of the base body 2,
In this embodiment, it is divided into five floor portions 6a to 6e. The central fixed floor portion 6c is fixed to the base body 2, and the back floor portion 6a, the waist floor portion 6b, and the first leg floor portion 6d and the second leg floor portion 6e are one side and the other side of the fixed floor portion 6c. Are rotatably and sequentially connected to each other.

A drive device 8 for raising the back is provided in the center of the lower surface of the base 1 in the longitudinal direction. This drive 9
Has a pair of drive shafts 10, and each drive shaft 10 has the base 2
It is rotatably supported at the other end of each pair of arms 8 (only one of which is shown), one end of which is connected to a pair of horizontal rails 7 that are erected on. Each drive shaft 10 is provided with a first lever 11 and a second lever 12, one end of which is connected. A pair of rollers 13 is rotatably provided at the tip of the first lever 11 with a predetermined space therebetween, and one roller 13 is rotatably provided at the tip of the second lever 12.

A pair of rollers 13 provided on the first lever 11 are rotatably engaged with a rail 14 having a U-shaped cross section provided on the lower surface of the back floor 6a, and provided on the second lever 12. The roller 13 thus rolled is in rolling contact with the lower surface of the first leg floor portion 6d.

Therefore, when the drive device 9 rotates the pair of drive shafts 10 in a predetermined direction, the back floor 6a and the waist floor 6b are driven upward by the first lever 11 as shown in FIG. Then, the first leg floor 6d and the second leg floor 6e are driven in the upward direction by the second lever 12. One end of the second leg floor 6e is pivotally attached to the base body 2 and the other end is held in an elevated state by a holding member 15 pivotally attached to the second leg floor 6e.

The mattress device 21 of the present invention is placed on the floor plate 5. As shown in FIGS. 2 to 4, the mattress device 21 includes a spring unit 22 having a rectangular planar shape. The spring unit 22 is formed into a rectangular shape having substantially the same size as the floor plate 5 by a plurality of continuous spring bodies 23 arranged in parallel along the width direction of the spring unit 22.

As shown in FIGS. 5 and 6, the continuous spring body 23 has a U-shaped planar shape which is continuously provided on the upper end surfaces of the coil portions 24 as a plurality of spring portions and the adjacent coil portions 24. The upper connecting rod 25 and the lower connecting rod 26 continuously provided on the lower end surface are continuously formed by one wire.

The upper connecting rod 25 and the lower connecting rod 26
And the pitch are shifted with respect to the longitudinal direction of the continuous spring body 23, and the adjacent coil portions 24 are joined portions 27 in which some of them are intertwined.

As shown in FIGS. 2 and 3, the plurality of continuous spring bodies 23 arranged side by side along the width direction of the spring unit 22 and the upper ends of the coil portions 24 adjacent to each other in the longitudinal direction of the spring unit 22. Helical line 2 at the lower end
8 are connected in the width direction.

The connection between the adjacent coil portions 24 by the helical wire 28 is released at three points on the lower surface of the spring unit 22 and one point on the upper surface. That is,
On the lower surface of the spring unit 22, the back floor 6a
A part corresponding to the connecting portion between the waist floor 6b and the waist floor 6b
The connection of the coil portion 24 by the helical wire 28 is removed at a portion corresponding to the connecting portion between the fixed floor portion 6c and the fixed floor portion 6c and a portion corresponding to the connecting portion between the fixed floor portion 6c and the first leg floor portion 6d, Moreover, in these places, the spring unit 2
The entanglement between the coil portions 24 adjacent to each other in the longitudinal direction of 2 is also removed, and the coupling portion 27 is not present.

As a result, these points are formed in the first to third flexible portions 31 to 33 with which the spring unit 22 can be easily bent to the upper surface side.

Further, the adjacent coil portions 24 are connected by the helical wire 28 so that the first leg floor portion 6d and the second leg floor portion 6e of the floor plate 5 are connected to each other on the upper surface side of the spring unit 22. The part corresponding to is also removed. Also at this point, the entanglement of the coil portions 24 that are adjacent to each other in the longitudinal direction of the spring unit 22 is removed, so that at this point, the spring unit 22 is formed in the fourth flexible portion 34 that can be easily bent to the lower surface side. There is.

As shown in FIG. 2, the spring unit 2
2 areas on the lower surface of the coil portion 24 divided by the first to third flexible portions 31 to 33, that is, portions corresponding to the back floor portion 6a, the waist floor portion 6b, and the fixed floor portion 6c. First to third lower frame lines 36 to 38, each having a rectangular shape, are attached and fixed to the spring unit 22 by a clip (not shown) at the peripheral edge thereof.

The portion corresponding to the first leg floor 6d is the second
Is attached to the U-shaped fourth lower frame line 39 from which one side of the leg floor 6e side is removed, and the portion corresponding to the second leg floor 6e is the one side of the first leg floor 6d side. The removed U-shaped fifth lower frame line 40 is attached.

As shown in FIG.
As shown in, a U-shaped first upper frame line 41 with one side removed from the waist floor 6b is attached to a portion corresponding to the back floor 6a, and the waist floor 6b and the fixed floor 6c are joined together. Straight upper second frame lines 42 are attached only to both sides in the width direction at locations corresponding to the connecting portions.

A third U-shaped upper frame line 43, whose one side on the fixed floor 6c side is removed, is attached to a portion of the upper surface of the spring unit 22 corresponding to the first leg floor 6d.
A rectangular upper frame-shaped fourth upper frame line 44 is attached to a portion corresponding to the second leg floor portion 6e.

Each of the lower frame lines 36 to 40 reinforces the peripheral portion of the lower surface of the spring unit 22 to maintain the shape of the lower surface of each region formed by the coil portion 24, and also the first to third portions.
By forming the flexible portions 31 to 33 of the helical wire 28
When the coil unit 24 of each continuous spring body 23 whose connection state has been separated is prevented from varying, and when the spring unit 22 is bent upward at the first to third flexible portions 31 to 33, its bending It does not get in the way.

The upper frame lines 41 to 44 reinforce the peripheral portion of the upper surface of the spring unit 22 and maintain the shape of the upper surface. By forming the fourth flexible portion 34 on the upper surface of the spring unit 22, the coil portion 24 in which the connection state by the helical wire 28 is separated is formed by the third upper frame line 43 and the fourth upper frame line 44. Since they are connected, the coil portions 24 are prevented from varying.

Further, when the spring unit 22 is bent downward at the portion of the fourth flexible portion 34, the third upper frame line 43 and the fourth upper frame line 44 do not interfere with the bending.

A first cushioning sheet 46 made of cloth such as felt is provided at the portion of the first flexible portion 31 where the coil portion 24 is unentangled, and extends over the entire width of the spring unit 22 in the width direction. A second cushioning sheet 47 is also provided at the flexible portion 34 over the entire length in the width direction. These cushioning sheets 46 and 47 are provided for the flexible portions 31, when the spring unit 2 is bent.
The entangled coil portions 24 located at 34 are prevented from colliding with each other and generating noise.

In this embodiment, the buffer sheets are not provided at the portions of the second flexible portion 32 and the third flexible portion 33 which are relatively bent to a small degree, but the buffer sheets are also provided at these portions. May be provided.

As shown in FIG. 4, on the lower surface of the spring unit 22, lower cushion members 51a-5, which are divided into sizes corresponding to the floor portions 6a-6e of the floor plate 5, are formed.
1e is attached to the spring unit 22. A relatively hard material such as sisal or cotton is used for the lower cushion material.

As shown in FIG. 1, the lower cushion material 51
The lower surfaces of a to 51e are entirely covered with a knit-shaped gold width 52. The gold width 52 is expandable / contractible along the longitudinal direction of the spring unit 22.

On the upper surface of the spring unit 22, an upper cushion material 54 made of low-foam urethane or the like is laminated via a protective sheet 53 such as felt. The laminated body of the spring unit 22, the lower cushion materials 51a to 51e, and the upper cushion material 54 is covered with an exterior body 55.

The exterior body 55 covers the upper mirror surface 56 covering the upper cushion material 54, the lower mirror surface 57 covering the lower cushion material, and the outer peripheral surface of the spring unit 22. It is composed of a gusset 58 which is sewn around the lower mirror 57.

Each mirror surface 56, 57 is formed by providing a sheet-like cushion material 62 between a lining material 61 and a surface material 62, and integrating these three members by a quilting 63. Made of cloth.

As the lining 61 and the surface 62 of each mirror surface 56, 57, a cloth having elasticity along the longitudinal direction of the spring unit 22 is used. As a result, when the spring unit 22 is bent, the exterior body 55 expands and contracts according to the bending. That is, the outer casing 5 does not hinder the bending of the spring unit 22.

The quilting 64 in which the lining 61 of each mirror surface 56, 57 and the outer surface 62 are sewn together is
Are provided so as not to prevent the spring unit 22 from extending along the longitudinal direction of the spring unit 22.

For example, the quilting 64 is provided so as to meander in the width direction of the spring unit 22, and the meandering is folded back at both ends in the width direction. As a result, the thread forming the quilting 64 is lined up with the lining 61 and the surface 6
2 is hardly prevented from extending along the longitudinal direction of the spring unit 22.

The respective mirror surfaces 56, 57 are fixed to the spring unit 22 by the flange cloth 65, and the lower mirror surface 57 is fixed to the spring unit 22 via the gold width 52. As a result, the exterior body 55 is prevented from shifting relative to the spring unit 22.

Further, a belt-like protective cloth 66 such as felt is provided on the peripheral portion of the lower surface of the spring unit 22 over the entire length. This protective cloth 66 is used for the exterior body 55.
Prevents the spring unit 22 from being rubbed and damaged.

The mattress device 21 thus constructed
According to this, the spring unit 22 is formed with the first to fourth flexible portions 31 to 34.
Can be bent. Therefore, the wake-up bed 1
If each floor except the fixed floor 6c of the floor plate 5 is raised by the drive device 9 as shown in FIG. 7, the mattress device 21 is smoothly bent according to the rise of these floors.

The flexible portions 31 to 34 are formed by removing the connection of the coil portions 24 adjacent to each other in the longitudinal direction of the spring unit 22 by the helical wire 28, and further divided by the flexible portions 31 to 34. First to fifth lower frame lines 36 to 40, and third and fourth upper frame lines 43 and 44 are provided along the peripheral edge of the surface formed by the lower end surface and the upper end surface of the coil portion 24 in the region. did.

Therefore, in order to form the flexible portions 31 to 34, the coil portion 24 from which the connection by the helical wire 28 has been removed has the first to fourth lower frame lines 36 to 39, and the third and fourth lower frame lines 36 to 39. The upper frame lines 43 and 44 prevent the spring unit 22 from being held without being separated, so that not only the shape of the spring unit 22 is maintained, but also adjacent coil portions are entangled with each other during repeated bending. Stable cushioning performance and external shape are not impaired.

The first to fifth lower frame lines 36 to 40 are provided over the entire peripheral portion of the lower surface of the spring unit 22, and the first to fourth upper frame lines 41 to 44 are peripheral edges of the upper surface of the spring unit 22. It is provided over almost the entire section.

Therefore, in the spring unit 22, the peripheral portions of the lower surface and the upper surface are reinforced by the lower frame lines 36 to 40 and the upper frame lines 41 to 44. Moreover, the first to fifth lower frame lines 36 to 40 are divided at the portions corresponding to the first to third flexible portions 31 to 33, and the third upper frame line 43 and the fourth upper frame line 44 are formed. Is divided at a portion corresponding to the fourth flexible portion 34.

Therefore, the frame lines provided to reinforce the upper and lower surfaces of the spring unit 22 do not become a resistance when the spring unit 22 is bent.
When each of the floor portions 6a to 6e is raised, the mattress device 21 can be smoothly bent.

The second upper frame line 42 is located at a position corresponding to a connecting portion between the waist floor 6b and the fixed floor 6c, that is, a position extending over the second flexible portion 32 provided on the lower surface of the spring unit 22. Since it is provided, the spring unit 2
There is some resistance when bending 2.

However, since the heaviest buttocks of the user's body are located at the second upper frame line 42, the portion of the spring unit 22 corresponding to the user's buttocks is caused by the resistance of the upper frame line 42. Due to the weight of the buttocks, it will be prevented from being greatly bent.

The first and third upper frame lines 41 and 43 are U-shaped, and the second upper frame line 42 is the spring unit 22.
Are provided only at both ends in the width direction. Therefore, the user lying on the mattress device 21 does not feel the hardness of the frame line on the back of the body.

One side of the third upper frame line 43 and the fourth upper frame line 44 located in the fourth flexible portion 34 is provided over the entire width of the upper surface of the spring unit 22 in the width direction. Therefore, that portion is positioned corresponding to the leg of the user lying on the mattress device 21.

However, since the leg part is the lightest part of the user's body, the leg part is not strongly pressed against the third upper frame line 43 and the fourth upper frame line 44. It is unlikely that a person will feel discomfort in the legs. Particularly, when the mattress device 21 is used, the bed pad is laid, so that the user also has the third upper frame line 43 and the fourth upper frame line 44.
I rarely feel the hardness with.

The first flexible portion 31 and the fourth flexible portion 34 of the mattress device 21 which are particularly greatly bent are respectively provided with a first cushioning sheet between the coil portions 24 disconnected from the helical wire 28. 46 and the second cushion sheet 47
Was set up.

Therefore, when the mattress device 21 is bent or returned from the bent state, it is possible to prevent the disconnected coil portions 24 from directly colliding with each other and generating noise.

In the above embodiment, the first flexible portion 31
Although the cushioning sheets 46 and 47 are provided only to the fourth flexible portion 34, it is needless to say that the cushioning sheets may be provided to the other flexible portions.

Further, the lower cushion members 51a to 51e provided on the lower surface of the spring unit 22 are divided at the portions corresponding to the first to fourth flexible portions 31 to 34.
Therefore, when the mattress device 21 is bent, the lower cushion members 51a to 51e do not become a bending resistance.

Moreover, the exterior body 55 of the mattress device 21.
Is formed of a stretchable fabric, the exterior body 55 hardly causes resistance when the mattress device 21 is bent.

Therefore, the mattress device 21 can be smoothly bent with a light force by the above.

The present invention is not limited to the above-described embodiment, and for example, depending on the type of the wake-up bed, the fourth flexible portion provided on the upper surface side of the spring unit may be omitted, and the lower surface may be omitted. The number and position of the flexible portions formed in the above are not limited.

Further, the case where the spring unit is formed by the continuous spring body has been described, but instead of the continuous spring body, coil springs as spring parts may be arranged in a matrix.

[0070]

As described above, according to the present invention, the lower frame line can prevent the spring portion from which the connection by the helical wire is removed from varying, and the lower frame line is divided corresponding to the flexible portion. Since the upper frame line is divided corresponding to the lower frame line, the upper and lower frame lines can reinforce the peripheral portion of the spring unit without impairing the flexibility of the spring unit.

[Brief description of drawings]

FIG. 1 is a side view, partly in section, of a mattress device according to an embodiment of the present invention.

FIG. 2 is a bottom view of a spring unit.

FIG. 3 is a top view of a spring unit.

FIG. 4 is a side view of a spring unit to which a lower cushion material is attached.

FIG. 5 is a perspective view showing a continuous spring body of a fourth flexible portion of the spring unit.

FIG. 6 is a perspective view showing a continuous spring body of a portion where a second upper frame line of the spring unit is provided.

FIG. 7 is a side view of the wake-up bed.

[Explanation of symbols]

22 ... Spring unit 23 ... Continuous spring body 24 ... Coil part (spring) 28 ... Helical line 31-34 ... Flexible part 36-40 ... Lower frame line 41 to 44 ... Upper frame line 46 ... First buffer sheet 51a to 51e ... Lower cushion material 54 ... Upper cushion material 55 ... Exterior body

Claims (4)

[Claims] 1. A mattress device having a spring unit in which a plurality of spring parts are arranged in a rectangular shape, and upper and lower end faces of spring parts that are adjacent to each other in the longitudinal direction are connected by a helical line in the width direction, the longitudinal direction of the spring unit. A flexible portion which is formed by removing the connection of the lower end surfaces of the adjacent springs by the helical line on the lower surface of the middle portion and which allows the spring unit to be bent, and a plurality of spring portions divided by the flexible portion. A plurality of lower frame lines provided along the peripheral edge of each region formed by the lower end surface of the spring unit, and an upper frame line provided at the peripheral edge of the upper surface of the spring unit corresponding to the lower frame lines. A cushion material laminated on at least the upper surface of the upper and lower surfaces of the spring unit, and the cushion material Mattress apparatus being characterized in that comprising an exterior body coated with laminate of the spring unit. 2. The mattress device according to claim 1, wherein the flexible portion is provided with a cushioning sheet that prevents the spring portions divided by the flexible portion from colliding with each other. 3. A lower cushion material is provided on a lower surface of the spring unit, and the lower cushion material is divided into a size corresponding to a region divided by the flexible portion. Mattress device as described. 4. The mattress device according to claim 1, wherein the exterior body has a structure capable of expanding and contracting along at least the longitudinal direction of at least the longitudinal direction and the width direction of the spring unit.