JPH10229929A - Mattress - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mattress so that it can easily be bent and generate no noise at bending. SOLUTION: This mattress consists of spring units 21 and an outer covering 30 into which these spring units 21 are covered. This mattress can be bent at the mid-course of longitudinal direction. The spring units 21 are then composed of the bags 23 arranged so that the coil springs 24 put into each accommodation chamber become an array state and the frame lines set at the peripheral edges of the top/bottom surfaces, except for the mid-course of longitudinal direction at the both widthwise sides of the rectangles formed by these bags 23, as well as a multiple number of accommodation chambers 22 are serially connected with each other to accommodate the coil springs 24 thereinto. The outer covering 30 is formed with a flexible substrate cloth whose part covering at least the bottom surfaces of the spring units 21 is flexible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mattress device having a spring unit.

[0002]

2. Description of the Related Art Generally, a mattress device has a rectangular spring unit formed by arranging a large number of coil springs in a matrix and connecting upper and lower end portions of adjacent coil springs with helical wires.

At least the upper and lower surfaces of the upper and lower surfaces of the spring unit are laminated with a sheet-like elastic material, and the laminated body is covered with a bag-like sewn cloth outer body to constitute the mattress device. You. On the upper and lower peripheral edges of the spring unit, in order to reinforce a coil spring having a low degree of connection with other coil springs located in the peripheral portion, or to maintain the outer shape of the mattress,
A frame line made of a hard wire is provided.

[0004] The mattress device thus configured is
It is used by being placed on a floor plate provided on a bed base. Beds include so-called wake-up beds that are used by people who are difficult to get up on their own, such as sick and elderly people.

[0005] In the wake-up type bed, a floor plate is divided into a plurality of floor portions, and a floor portion corresponding to the back of the user, ie, a raised floor portion, is rotatably provided. The raised floor is driven up and down by a driving device. Therefore,
The user who is lying on the floor board via the mattress device is raised in the upper body by driving the back-raising floor in the rising direction.

[0006] The mattress device used for such a wake-up bed must have a structure that bends in accordance with the rising of the raised floor portion of the floorboard. However, as described above, in the spring unit, adjacent end faces of the coil springs arranged in a rectangular shape are connected by a helical wire.

[0007] Therefore, when the user raises the back-raising floor in order to raise the upper body of the user, the spring unit of the mattress device that is bent accordingly is provided with:
A large tensile force is generated on the lower surface in the thickness direction.

In the above-mentioned spring unit, since the end faces of the adjacent coil springs are connected by a helical wire, a large resistance is generated against the above-mentioned tensile force. Therefore, even if the back raising floor is raised, the spring unit, that is, the mattress device may not be smoothly bent.

Accordingly, the applicant of the present application has filed Japanese Patent Application No. 5-8852.
The mattress device shown in No. 2 was proposed. In this mattress device, coil springs are arranged in a rectangular shape, and adjacent end faces of these coil springs are connected by a helical wire, and the end faces of the coil springs on the lower surface side of the spring unit are arranged in the longitudinal direction of the spring unit. The connection by the helical line along the line is released so that no tensile force is generated on the lower surface side of the spring unit when the spring unit is bent.

According to such a configuration, it is possible to smoothly bend the mattress when the back-raising floor is raised. However, if the lower end face of the coil spring constituting the spring unit is released from the coupled state, the spring unit may be bent,
When extending, for example, the end faces of adjacent coil springs whose coupling state has been released may collide with each other to generate noise, which may cause discomfort to the user.

[0011]

As described above, in the conventional mattress device, the connection state of the end faces of the coil springs adjacent to the spring unit by the helical wire is released in order to bend easily. In addition, when the spring unit in the disengaged state is bent or extended, the end faces of adjacent coil springs may collide with each other to generate noise.

An object of the present invention is to release the joined state of the end faces of adjacent coil springs to facilitate bending, and to prevent the end faces of adjacent coil springs from colliding with each other even when bent or extended. It is an object of the present invention to provide a mattress device.

[0013]

According to a first aspect of the present invention, there is provided a mattress device comprising a spring unit and an outer body covering the spring unit and capable of being bent at an intermediate portion in a longitudinal direction. And a bag body in which the coil springs housed in each housing part are arranged in a matrix while the housing parts are arranged in a row and the coil springs housed in each housing part, and a rectangle formed by the bag body And frame lines provided on the upper and lower peripheral edges except for the middle part in the longitudinal direction on both sides in the width direction,
The exterior body is characterized in that at least a portion covering the lower surface of the spring unit is formed of a stretchable fabric.

According to a second aspect of the present invention, in the first aspect of the present invention, the spring unit includes a plurality of bags arranged in a longitudinal direction along a width direction of the spring unit.

According to a third aspect of the present invention, in the first aspect of the present invention, the spring unit is formed by bending a single bag in a meandering shape with a predetermined width or length. And

According to the first aspect of the present invention, the plurality of coil springs are accommodated in the accommodating portion connected to the bag body.
Since the plurality of coil springs forming the spring unit are held by the bag, the end faces of the adjacent coil springs do not have to be joined, and the adjacent coil springs are accommodated in the accommodating portion. The end faces of the spring do not collide with each other and generate no noise.

According to the second aspect of the present invention, since the plurality of bags are arranged along the width direction of the spring unit and are arranged side by side along the longitudinal direction, the spring unit is easily bent along the longitudinal direction. . According to the invention of claim 3, 1
Since the spring unit is formed by bending the bag body of the book, the spring unit can be easily assembled.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention, and FIG. 4 shows a rising bed 1. The wake-up bed 1 includes a base 2 formed in a rectangular frame shape and having a headboard 2a at one longitudinal end and a footboard 2b at the other end. At the four corners of the lower surface of the base 2, casters 3 with stoppers for supporting the base 2 so as to be able to travel are provided, and on the upper surface, a floor plate 4 divided into a plurality in the longitudinal direction is provided. In this example, the floor panel 4 is divided into first to fourth four floor panel sections 4a to 4d.

From the headboard 2a side of the floor plate 4, 2
The second floor plate portion 4 b is fixed to one of the two horizontal rails 5 laid in the width direction of the base 2. A first floor plate 4a and a third floor plate 4c are provided at both ends of the floor plate 4b.
And a fourth floor plate portion 4d is pivotally connected to the third floor plate portion 4c.

One end of each of a pair of arms 6 (only one of which is shown) is fixed to the pair of cross rails 5 at predetermined intervals in the longitudinal direction. A first shaft 7 and a second shaft 8 are rotatably supported by a pair of arms 6 of each cross rail 5. One end of a first lever 9 is fixed to a first shaft 7 located on the headboard 2a side, and a second
One end of the lever 11 is fixed. Each lever 9, 1
At the other end of the roller 1, a roller 12 is rotatably provided.

The roller 12 provided on the first lever 9 is in rolling contact with the first slope 13 provided on the lower surface of the first floor plate portion 4a, and is provided on the second lever 11. The roller 12 is in rolling contact with a second slope 14 provided on the lower surface of the third floor plate portion 4c. Further, a third surface is provided on the lower surface of the fourth floor plate portion 4d.
One end of the lever 15 is pivotally mounted. The other end of the third lever 15 is pivotally connected to the base 2.

A driving device 16 indicated by a chain line is provided on the lower surface side of the base 2. The driving device 16 drives the first shaft 7 and the second shaft 8 to rotate. When the first shaft 7 is driven in the clockwise direction indicated by the arrow, the first lever 9 interlocking with the first shaft 7 drives the first floor plate portion 4a of the floor plate 4 in the upright direction, and the second shaft 8 moves in the arrow direction. Is driven in the counterclockwise direction, the third floor plate portion 4c is driven in the upright direction by the second lever 11 interlocked therewith. This third
The fourth floor plate portion 4d is also driven in the upright direction in conjunction with the floor plate portion 4c, and is held by the third lever 15 so as to form a substantially mountain shape with the third floor plate portion 4c.

The floor plate 4 of the wake-up bed 1 having such a configuration.
A mattress device 20 according to the present invention is mounted thereon. This mattress device 20 includes a spring unit 2 having a rectangular planar shape as shown in FIGS.
1 is provided. The spring unit 21 has a bag 23 in which a plurality of housing portions 22 are provided in a row. The bag 23 has a length substantially the same as the width of the spring unit 21, and each of the housings 22 houses a coil spring 24 having a barrel-shaped side surface.

The plurality of bags 23 are
Are arranged side by side in the longitudinal direction of FIG.
As shown in FIG. 2, they are connected by a connecting thread 24a as a connecting member. As shown in FIG. 1, the connecting thread 24a penetrates through a substantially central portion or a central portion in the height direction of the accommodating portions 22 of the plurality of bags 23, and in the present embodiment, penetrates the central portion. Is provided. 1 and 3, the connecting yarns 24a connect the housing portions 22 in every other row in the width direction of the spring unit 21 along the longitudinal direction.

The above-mentioned spring unit 21 has a plurality of bag bodies 23 arranged so as to have a rectangular planar shape as a whole.
Is provided. The frame line 25 is connected and held by upper and lower end surfaces of the coil spring 24 in the accommodating portion 22 located at the periphery of the spring unit 21 by clips (not shown).

As shown in FIG. 3, each of the frame lines 25 is composed of a pair of U-shaped members formed by bending a steel wire into a U-shape. The release portion 26 is not provided with the frame line 25.

On the upper surface of the spring unit 21 having the above structure, an upper elastic member 28 made of polyester resin fiber or other resin fiber is provided via a protective member 27 made of a material having excellent wear resistance. Is provided with a lower elastic member 29 made of a relatively flexible material such as urethane foam.

The upper surface of the upper elastic member 28 is covered by an upper mirror 31 constituting the exterior body 30, and the lower surface of the lower elastic member 29 is covered by a lower mirror 32. Further, the outer peripheral surface of the spring unit 21 is covered with a town 33. The upper end of the town 33 is the upper mirror 3
1 is sewn to the periphery of the lower mirror 32 by a lower tape 35.

At least the lower mirror ground 3 among the upper mirror ground 31, the lower mirror ground 32, and the town ground 33 constituting the exterior body 30 is described.
Reference numeral 2 is formed of a highly stretchable fabric such as a knit. In addition, not only the lower mirror fabric 32 but also the upper mirror fabric 31 and the town fabric 33 may be formed of highly stretchable fabric.

One end of the upper elastic member 28 is connected to the upper mirror 3
1 and is held at the other end by an upper flange cloth 37 connected by a clip 36 to the coil spring 24 located at the periphery of the spring unit 21. The lower elastic member 29 has one end sewn to the lower mirror fabric 32 and the other end held by an upper flange cloth 37 connected to a coil spring 24 located around the spring unit 21 by a clip 36.

According to the wake-up bed 1 using the mattress device 20 having the above-described structure, the drive device 16 is operated to raise the upper body of the user lying on the mattress device 20, and the first floor plate portion 4a is moved. When raised, the mattress device 20 on the floor plate 4 is bent from the middle part in the longitudinal direction in accordance with the rising.

An intermediate portion in the longitudinal direction of the spring unit 21 constituting the mattress device 20 is a release portion 26 where no frame line 25 is provided.
The lower mirror fabric 32 is formed of a material having large elasticity. Further, since the coil springs 24 forming the spring unit 21 are accommodated and held in the accommodating portion 22 of the bag 23, the end faces of the coil springs 24 adjacent in the longitudinal direction of the spring unit 21 are not joined.

For this reason, even if the mattress device 20 is bent by raising the first floor plate portion 4a, a large tensile force (reaction force against bending) is not generated on the lower surface side outside the bend. The mattress device 20 can be reliably bent with a light force.

Further, each coil spring 24 is accommodated in the accommodating portion 22 of the bag 23. for that reason,
Even if the end faces of the adjacent coil springs 24 are not connected to each other, it is possible to prevent the adjacent coil springs 24 from colliding with each other and generating noise.

Further, since the plurality of bags 23 arranged side by side along the longitudinal direction of the spring unit 21 are connected at substantially the center in the height direction by a connecting thread 24a, the connecting thread 24a is Does not become a resistance when bending. That is, although the plurality of bags 23 are integrally connected by the frame line 25 and the connection thread 24a, the frame line 25 and the connection thread 24a do not provide resistance when the spring unit 21 is bent.

FIGS. 5 and 6 show a second embodiment of the present invention. In the second embodiment, the plurality of bags 23 are connected by a connecting tape 31 made of a flexible material such as cloth instead of the connecting thread 24a. That is, the connecting tapes 31 are provided on the upper end surfaces of the accommodating portions 22 of the side-by-side bag bodies 23 by sewing or bonding along the longitudinal direction of the spring unit 21 and every other row in the width direction. I made it.

In the structure of the other parts of this embodiment, the same parts as those of the first embodiment are denoted by the same symbols, and the description is omitted. According to such a configuration, since the plurality of bags 23 forming the spring unit 21 are connected only by the connecting tape 31 on the upper surface side of each of the housing portions 22, the bags 23 are connected. However, the connection does not increase the resistance when the spring unit 21 is bent.

FIG. 7 shows a third embodiment of the present invention. In this embodiment, not only the upper surface side of the accommodating portion 22 of the bag 23 is connected with the connecting tape 31 but also the lower surface side is connected. -Step 3
1a. Lower surface side connecting tape 31a
By using an elastic cloth, it is possible to prevent a large increase in resistance when the spring unit 21 is bent, and furthermore, by connecting the upper and lower surfaces of the accommodating portion 22, the connection state of each bag body 23 is ensured. Can be something.

FIG. 8 shows a fourth embodiment of the present invention. In this embodiment, a spring unit 21 has a plurality of bags 2 having substantially the same length as the length of the spring unit 21.
3A are arranged side by side in the width direction of the spring unit 21. Each of the bags 23A is connected by a connecting thread 24a that penetrates through a middle part in the height direction of each of the housing parts 22 at two places, two ends in the longitudinal direction and a middle part of the spring unit 21 in total.

The bag unit 23A is connected to the spring unit 21.
Are provided along the longitudinal direction of the spring unit 2 compared to the case where they are provided along the width direction.
1 becomes resistance when bending along the longitudinal direction, but by forming the bag body 23A with a stretchable fabric,
The resistance at the time of bending can be reduced.

FIG. 9 shows a fifth embodiment of the present invention. In the spring unit 21 of this embodiment, one long bag 23B has a length substantially equal to the width of the spring unit 21. By bending in a meandering manner, it is formed in a substantially rectangular shape as a whole. In this way, the meanderingly bent bag bodies 23B are joined by connecting yarns 24a that penetrate in the longitudinal direction at intermediate portions in the height direction of the housing portions 22 in every other row in the width direction.

According to such a configuration, the bag 23B is
In the longitudinal direction of the spring unit 21, one end in the width direction of two adjacent rows that are bent and bent is one accommodation unit 2.
2 (indicated by 22A in FIG. 9), the resistance at the time of bending increases accordingly.

However, the connection between the two adjacent rows of the bag 23B is such that only one end in the width direction is connected by the storage section 22A, and the other end is connected to the storage section 22 (see FIG.
B), even if the bag 23 has a continuous structure,
There is almost no large resistance at the time of bending.

Moreover, since one long bag 23B is bent in a meandering manner to form the spring unit 21,
Manufacturing can be facilitated as compared with the above-described embodiments in which a plurality of bags 23 and 23A are arranged side by side.

Although not shown, the above-mentioned spring unit may be formed by repeatedly bending one long bag in a meandering shape with a length substantially equal to the length of the spring unit. Good.

In this case, when the above-mentioned spring unit is bent, the bag along the longitudinal direction of the spring unit is likely to have resistance to bending. Resistance can be reduced.

In each of the above-described embodiments, a plurality of side-by-side bags or bent bags are connected by a connecting thread or a connecting tape in order to maintain the side-by-side or bent state. However, since the bag body is held by the exterior body by using the spring unit of each configuration as a mattress device, the bag body does not have to be connected by a connecting thread or a connecting tape.

[0048]

According to the first aspect of the present invention, there is provided a bag body in which a plurality of accommodating portions accommodating the coil springs are respectively provided in a row, and the bag bodies are arranged so that the coil springs are arranged in a matrix. An exterior that forms a spring unit by arranging the frame, and provides a frame line at the upper and lower peripheral edges of the spring unit except for the longitudinally intermediate portions on both sides in the width direction and further covers the upper and lower surfaces and the outer peripheral surface of the spring unit. At least a portion of the body covering the lower surface was made of stretchable fabric.

Therefore, according to the mattress device having the above structure, there is no frame line in the middle of the spring unit in the longitudinal direction, and the end faces of the adjacent coil springs are not connected. Since these have elasticity, they hardly cause a large resistance when the mattress device is bent at an intermediate portion in the longitudinal direction.

Moreover, since the coil springs are accommodated in the accommodating portion of the bag, the adjacent coil springs do not collide with each other and generate noise even if the end faces are not connected.

According to the second aspect of the present invention, the plurality of bags are arranged along the width direction of the spring unit and arranged in the longitudinal direction. For this reason, when the spring unit is bent along the longitudinal direction, the bags adjacent to each other in the longitudinal direction hardly cause resistance during bending, so that the spring unit can be easily bent.

According to the third aspect of the present invention, a single bag is bent to form a spring unit. Therefore, assembling can be performed more easily than when a plurality of bags are arranged side by side to form a spring unit.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a part of a mattress device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a part of a spring unit of the mattress device.

FIG. 3 is a plan view showing the upper surface side of the spring unit.

FIG. 4 is a side view of a wake-up bed in which the mattress device of the present invention is used.

FIG. 5 is a plan view showing a spring unit according to a second embodiment of the present invention.

FIG. 6 is a longitudinal sectional view of a part of the mattress device.

FIG. 7 is a longitudinal sectional view of a part of a mattress device according to a third embodiment of the present invention.

FIG. 8 is a plan view of an upper surface side of a spring unit according to a fourth embodiment of the present invention.

FIG. 9 is a top plan view of a spring unit according to a fifth embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 ... Spring unit 22 ... Housing part 23 ... Bag body 24 ... Coil spring 25 ... Frame line 26 ... Release part 30 ... Exterior body

Claims (3)

[Claims] 1. A mattress device comprising a spring unit and an exterior body covering the spring unit, the mattress device being capable of being bent at an intermediate portion in a longitudinal direction. Except for a bag body in which coil springs are accommodated in the portion and the coil springs accommodated in the respective accommodating portions are arranged in rows and columns, and longitudinally intermediate portions on both sides in the width direction of the rectangle formed by the bag body A mattress device comprising: a frame line provided on upper and lower peripheral edges; wherein the exterior body has at least a portion covering the lower surface of the spring unit formed of stretchable fabric. 2. The mattress device according to claim 1, wherein the spring unit includes a plurality of bags arranged in a longitudinal direction along a width direction of the spring unit. 3. The mattress device according to claim 1, wherein the spring unit is formed by bending a single bag body in a meandering shape with a predetermined width or length.