JPH1189672A - Bed device and mattress device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bed device which can prevent a waist part of a user from being pressed by a mattress body when a back floor plate part is raised up. SOLUTION: Adjacent floor plate parts divided into plural floor plate parts 5a to 5e in the lengthwise direction of a bed frame 3, are rotatably connected to each other. The bed device and the mattress device are provided with a floor plate body 4 where the floor plate part 5a positioned in a central part is fixed to the bed frame 3, a back raising driving device 11 to drive so as to raise/lower the movable floor plate part 5c rotatably connected to one end side of the fixed floor plate part 5a fixed to the bed frame 3 of the floor plate body 4, a mattress body 31 which is placed on the floor plate body 4 and is formed so as to be freely extensible-contractible in the lengthwise direction, and a belt-like member which is arranged in the movable floor plate part 5c and is extended by pulling the mattress body 31 in the rising direction when this movable floor plate part is rotated in the standing-up direction and is slid in the reducing direction when it is rotated in the prostrating direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus suitable for caring for a user who is difficult to get up by himself and a mattress apparatus used for the bed apparatus.

[0002]

2. Description of the Related Art For example, when a user who has difficulty moving his / her body by himself is lying on a bed apparatus, various care needs to be given to the user.
One of the methods is to change underwear regularly.

[0003] In order to make it easy for the user to change the underwear of the upper body, a bed apparatus provided with a back raising mechanism is used. In this case, the bed device is provided with a floor plate composed of a plurality of floor plates that are rotatably connected to each other, and the mattress device is placed on the floor plate.

When the above-mentioned back-raising mechanism is operated,
Since the floor plate portion corresponding to the upper body of the user is driven in the raising direction, the upper body of the user is thereby raised through the mattress device.

When the floorboard is raised, the mattress device is bent. Since the mattress device has a predetermined thickness, when it is bent, a compression force is generated on its upper surface and a tensile force is generated on its lower surface. When a compressive force is generated on the upper surface of the mattress device, the user's waist is wrapped in the curved portion of the mattress device and pressed by the compressive force.

[0006] If the user can lift the lower back from the mattress device by himself / herself, the pressure can be released. However, if the user cannot move his / her body freely by himself / herself, the mattress device is used. Since the pressure on the lower back cannot be released, discomfort may increase.

[0007]

As described above, in a case where the upper body of the user is raised by using the bed apparatus provided with the back-raising mechanism, the compression force generated on the upper surface of the mattress apparatus which curves when the back is raised. Since the lower back of the user is pressed, the user may feel uncomfortable.

[0008] The present invention provides a bed apparatus and a mattress in which when the user's upper body is raised using a bed apparatus provided with a back-up mechanism, the user's waist is not pressed when the back is raised. It is to provide a device.

[0009]

According to a first aspect of the present invention, there is provided a bed apparatus capable of raising a user's upper body.
The bed frame is divided into a plurality of floor panels along the longitudinal direction of the bed frame, and adjacent floor panels are rotatably connected to each other, and a floor panel located at a central portion is connected to the bed frame. A fixed floor plate, a back-up drive mechanism for raising and lowering a movable floor plate rotatably connected to one end of a fixed floor plate fixed to the bed frame of the floor plate, and A mattress body that is placed on the movable floor plate and that is formed to be stretchable along the longitudinal direction; And a sliding means for sliding in the contracting direction when the device is extended and rotated in the falling direction.

[0010] A second aspect of the present invention is a mattress device mounted on a floor plate of a bed device, comprising a plate-shaped core material and an exterior ground covering the core material. Is characterized in that a bellows-like elastic portion is formed over the entire length in the width direction, and the exterior ground is configured to expand and contract with the elastic portion.

According to the first aspect of the present invention, the mattress body is formed to be extendable and contractable, and the mattress body is expanded and contracted in accordance with the ups and downs of the movable floor plate portion. The portion can be prevented from wrapping around the user's waist and compressing it, and can be reduced against the load of the user when lying down, so that the mattress body can be returned to its original state.

According to the second aspect of the present invention, since the mattress device is formed of the core material having the expansion and contraction portion and the exterior ground which expands and contracts together with the core material, the mattress device can be easily and reliably formed according to the undulation of the movable floor plate portion. Can be expanded and contracted.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a back-up type bed apparatus, which is provided with a base frame 1.
The base frame 1 is movable by a caster 2 with a stopper and can be locked immovably at a predetermined position.

An upper and lower frame 3 as a bed frame having a head board 3a at one end and a foot board 3b at the other end is provided on the base frame 1 so as to be vertically movable. A floor plate 4 is disposed on the room 3.

The floor plate 4 is divided into five floor plates along the longitudinal direction of the upper and lower frames 3. That is, the central portion in the longitudinal direction is a fixed floor plate portion 5a fixed to the upper and lower frames 3, and the waist floor plate portion 5b and the back floor plate portion 5c are sequentially rotated at one end of the fixed floor plate portion 5a. A first leg floor plate 5d and a second leg floor plate 5e are sequentially rotatably connected to the other end side.

The upper and lower frames 3 are provided with a driving device 11. This drive device 11 has a case 12 and
A drive motor 13 is provided on one side of the case 12. A first drive shaft 16 is provided at one end of the case 12 on the side of the headboard 3a, and a second drive shaft 17 is provided at the other end of the case 12 on the side of the footboard 5b. The first drive shaft 16 and the second drive shaft 17 are rotated in the directions indicated by arrows in the figure by the operation of the drive motor 15.

The first drive shaft 16 has a first arm 1
One end of a second arm 19 is fixed to one end of the second drive shaft 17. First arm 18
The other end of the pair of first rollers 21 as shown in FIG.
These first rollers 21 are rotatably engaged with guide members 22 having a U-shaped cross section provided on the back surface of the back floor plate 5c. The second arm 1
A second roller 23 is rotatably provided at the other end of the base 9, and the second roller 23 comes into contact with the lower surface of the first leg floor plate 5d.

When the first arm 18 is driven in the upright direction by the operation of the drive motor 15, the back floor plate 5
c is pressed by the first roller 21 and pivots in the upright direction.
b is linked.

When the second arm 19 is driven in the upright direction by the operation of the drive motor 13, the second roller 2 is driven.
3, the first leg floor plate portion 5d rotates in the ascending direction with the connection end with the fixed floor plate portion 5a as a fulcrum. Since the second leg floor plate 5e is linked to the elevation of the first leg floor plate 5d,
The leg floor plates 5d and 5e are bent in a substantially U-shape.

On the upper surface of the floor plate 5, a mattress body 31 as a mattress device is mounted. The mattress body 31 is configured to bend in accordance with the up / down driving of each floor panel portion of the floor panel body 5 when the floor panel section 5 is raised / lowered, and a slide described later provided on the back floor panel section 5c at the time of up / down. It is designed to be expanded and contracted by a mechanism.

The mattress body 31 is a rectangular plate-shaped core material 3.
2 is covered with a bag-shaped exterior ground 33. The core material 32 is made of, for example, a nonwoven fabric having a predetermined thickness with fibers interposed therebetween. As the fibers forming the nonwoven fabric, natural fibers, inorganic fibers, regenerated fibers, synthetic fibers, and the like are used, and specifically, polyester fibers and polyolefin fibers are preferable.

A stretchable portion 34 is formed at an intermediate portion in the longitudinal direction of the core member 32 over the entire length in the width direction. As shown in FIG. 2C, the elastic portion 34 is formed by alternately cutting the slits 35 at predetermined intervals at a depth such that the upper surface side and the lower surface side of the core material 32 leave the connecting portion 35a in the thickness direction of the core material 32. It is formed in a bellows shape which can be extended and contracted.

Therefore, when the tensile force is applied to the core material 32 in the longitudinal direction, the expandable portion 34 expands, and when the tensile force is removed, the contraction portion 34 contracts. A circular hole 35b is provided at the tip of the slit 35 for preventing stress from being concentrated and the core material 32 from tearing.

The exterior fabric 33 covering the core material 32 is formed of a fabric that can expand and contract in accordance with the expansion and contraction of the expandable portion 34. The exterior fabric 33 may be formed entirely of stretchable fabric, or may be formed of only stretchable fabric corresponding to the stretchable portion 34.

As shown in FIG. 5, a fastener 35 is provided on one end surface of the exterior ground 33. By opening the fastener 35, the inner core material 32 can be taken in and out.

A belt-shaped first velvet fastener 41 is attached to a belt 42 at both ends in the width direction at one longitudinal end of the lower surface of the mattress body 31. That is, as shown in FIG. 3, a pair of slit grooves 43 penetrating in the thickness direction is formed in the core material 32 of the mattress body 31,
The belt 42 is wound around the core 32 through the groove 43. The portion of the belt 42 located on the lower surface side of the mattress body 31 is a through hole 3 formed in the exterior ground 33.
The first velvet fastener 41 is exposed to the outside from 3a, and is attached to the exposed portion by means such as sewing.

A pair of first velvet fasteners 41
As shown in FIG. 3, the second
Are detachably attached to the velvet fastener 44. The first velvet fastener 41 and the second velvet fastener 44 constitute first connecting means.

The second velvet fastener 41 is attached to a belt-like member 45 made of relatively durable cloth such as canvas by means of sewing or the like. This belt-like member 45
Is guided to the lower surface side through a guide hole 46 formed at one longitudinal end of the back floor plate portion 5c, and the other end is a concave portion 47 at the other longitudinal end of the back floor plate portion 5c (FIG. 4 (see FIG. 4).

The first connecting means is not limited to the first velvet fastener 41 and the second velvet fastener 44, but may be, for example, sewing the exterior ground 33 and the band-shaped member 45 together. Exterior ground 33 and belt-like member 45
As long as it can be combined with

The guide hole 46 and the concave portion 47 are provided with guide members 46a and 47a for guiding the band-shaped member 45 so as not to be offset.
One end and the other end of the band-shaped member 45 are connected to one end and the other end of the band-shaped connecting steel plate 51. One end of the connecting steel plate 51 is connected to the first raising arm of the back lifting mechanism 11.
A fixing member 52 is fixed to a connecting member 52 serving as second connecting means attached to the inner surface of the distal end portion of the drum 18 by screws 53. The connecting member 53 connects the receiving roller 21 to the first roller.
And is integrally attached to a shaft 21a attached to the arm 18 for raising.

Therefore, the first raising arm 18 is driven by the driving source 13 to rotate in the rising direction.
The tip of the first raising arm 18, that is, the receiving roller 21 moves relatively to the rail 22 in the direction indicated by the arrow A in FIG. The belt-shaped member 45 is slid in the direction shown by the arrow B in the figure along the upper and lower surfaces of the back floor plate portion 5c.

When the belt-like member 45 slides in the direction of arrow B, the first and second velvet fasteners 4
The mattress body 31 slides in the direction of arrow C in conjunction with 1 and 44. Therefore, the first raising arm 18
Is rotated in the upright direction to raise the back floor plate portion 5c,
The mattress body 31 is forcibly pulled in the direction of ascending the rising back floor plate portion 5c.

Thus, the mattress body 31 is configured such that the elastic portion 34 of the core material 32 is extended together with the exterior ground 33. When the raised back floor plate portion 5c is rotated in the falling direction, the receiving roller 21 moves in the direction indicated by the arrow A with respect to the rail 22.
The belt-shaped member 45 slides in the direction opposite to the arrow B along the upper and lower surfaces of the back floor plate portion 5c. Therefore, at this time, the mattress body 31 is forcibly slid in the direction opposite to the arrow C descending the back floor plate portion 5c.
4 will be reduced.

That is, the mattress body 31 and the back floor plate portion 5c
The belt-like member 45 for transmitting the movement of the receiving roller 21 along the rail 22 to the mattress body 31 is coupled to the mattress body 31 in accordance with the ups and downs of the back floor plate portion 5c. The above-mentioned sliding mechanism is configured to expand and contract the expansion and contraction portion 34 and slide one end of the expansion and contraction portion 34 on the back floor plate portion 5c.

Next, the operation of the bed apparatus having the above configuration will be described. First, when raising the upper body of the user U, the driving device 11 provided on the upper and lower frames 3 is operated. That is, the drive motor source 13 of the drive device 11 is operated to rotate the first arm 18 in the counterclockwise direction indicated by the arrow. Thus, the receiving roller 21 provided on the first arm 18 is provided on the lower surface of the back floor plate 5c.
The rear floor plate portion 5c is pushed up in the rising direction because the rear floor plate portion 5c is engaged with the rear plate 22. Therefore, it is possible to raise the upper body of the user U located on the back floor plate portion 5c.

When the first arm 18 is driven to raise the back floor 5c in order to raise the upper body of the user U, the receiving roller 21 is moved to the rail 22 as shown in FIG. Rolling in the direction indicated by arrow A, the belt-like member 45
Slides in the direction indicated by arrow B along the upper and lower surfaces of the back floor plate portion 5c.

When the belt-like member 45 slides in the direction of arrow B, one end of the mattress body 31 connected to this belt-like member 45 located on the back floor plate 5c is pulled upward. Therefore, the mattress body 31 is forcibly slid in the direction indicated by the arrow C at one end located on the back floor plate portion 5c, that is, in the direction in which the rising back floor plate portion 5c rises, with the elastic portion 34 extending. .

Accordingly, the portion of the mattress body 31 located on the waist floor plate portion 5b corresponding to the waist of the user U is not strongly bent. Therefore, when the upper body of the user U is raised, the waist portion of the user U is hardly wrapped and pressed by the mattress body M, so that the user U does not feel discomfort. Can wake up.

When the user U who has lifted his / her upper body lays down and turns the back floor plate portion 5c in the upright state in the falling direction, the receiving roller 21 moves the rail 22 in the direction opposite to the arrow A. To roll. As a result, the belt-like member 45 is
Slides in the opposite direction to arrow B along the upper and lower surfaces of
The mattress body 31 is interlocked with the slide of the band-shaped member 45.

The mattress body 31 is forcibly slid downward along the back floor plate 5c in conjunction with the rotation of the back floor plate 5c in the falling direction.
When c falls down until it is almost horizontal, the mattress body 31
Will return from the expanded state to the original reduced state.

That is, since the load of the user is applied to the mattress body 31, it is difficult for the stretched portion 34 to return to the original state simply by lowering the back floor plate portion 5c. For this reason, since the elastic portion 34 remains in an extended state in which the slit 35 is opened, which gives the user discomfort, the mattress body 31 is forcibly slid downward as described above. By the fact that back floor part 5
When c is laid down, the elastic portion 34 is forcibly reduced. Thereby, the slit 35 of the elastic part 34
Is closed, the original state is attained, so that it is possible to prevent the user U from feeling uncomfortable or to lower the sleeping comfort.

In the above-described embodiment, the connecting steel plate is interposed between one end and the other end of the belt-like member constituting the sliding means provided on the back floor plate portion. The member may be formed in a loop shape and connected to the connecting member. In other words, the sliding means may be configured so that the mattress body can expand and contract according to the ups and downs of the back floor plate. Although the nonwoven fabric is used as the core material of the mattress body, an elastic material such as urethane foam may be used instead of the nonwoven fabric.

[0043]

According to the first aspect of the present invention, the mattress body is formed so as to be able to expand and contract, and the mattress body is made to expand and contract according to the undulation of the movable floor plate. Therefore, when the backrest is lifted, one end of the mattress body is stretched by being pulled in the ascending direction, thereby preventing the curved portion of the mattress body from wrapping around the waist of the user and pressing the same, which makes the user uncomfortable. Never give. Further, when the mattress body is extended, the stretched mattress body can be reduced to its original state, which does not cause discomfort to the user or decrease the sleeping comfort.

According to the second aspect of the present invention, the mattress device is formed of a core material and an exterior material, and a bellows-like elastic portion is formed on the core material, so that the exterior material can expand and contract together with the above-mentioned elastic portion. Therefore, not only can the mattress device be easily and reliably expanded and contracted, but also it is possible to perform not only the expansion and contraction but also the bending with a light force, which is ideal for a bed device for raising the back.

[Brief description of the drawings]

FIG. 1 is a side view showing the overall configuration of an embodiment of the present invention.

FIG. 2A is a plan view of the mattress body, and FIG.
Is a side view in which a part of the exterior ground is also removed, and (c) is a side view of a portion where a stretchable portion of a core material is formed.

FIG. 3 is a sectional view showing a means for sliding the mattress body.

FIG. 4 is a perspective view of a back floor plate portion.

FIG. 5 is a perspective view showing the lower surface side of the mattress body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 ... Upper and lower frame (bed frame) 4 ... Floor board 5a-5e ... Floor board part 11 ... Drive device 31 ... Mattress body (mattress device) 32 ... Core material 33 ... Exterior ground 34 ... Expansion part

Claims (2)

[Claims] 1. A bed apparatus capable of raising a user's upper body, wherein the bed frame is divided into a plurality of floor plates along a longitudinal direction of the bed frame, and adjacent floor plates are rotatable with respect to each other. And a floor plate located at a central portion thereof is rotatably connected to a floor plate fixed to the bed frame, and one end of the fixed floor plate fixed to the bed frame of the floor plate. A back-up drive mechanism for raising and lowering the movable floor plate, a mattress body placed on the floor plate and formed to be stretchable along the longitudinal direction, and a movable floor plate provided on the movable floor plate Sliding means for pulling the mattress body upward in the rising direction when rotating the mattress body in the upright direction and sliding in the contracting direction when rotating the mattress body in the falling direction. Bed apparatus according to. 2. A mattress device mounted on a floor plate of a bed device, comprising a plate-shaped core material and an exterior ground coated with the core material.
A mattress device characterized in that a bellows-like elastic portion is formed in the middle part in the longitudinal direction of the core material over the entire length in the width direction, and the exterior ground expands and contracts with the elastic portion.