JP2670750B2 - Bed bottom structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottom structure for a bed in which the bottom is configured to be bendable with an appropriate curvature so that the bottom is not unreasonably raised.

[0002]

2. Description of the Related Art Recently, many beds have a bottom undulation mechanism, and various mechanisms have been adopted.

[0003]

By the way, an ordinary bed is one in which a back bottom and a waist bottom or a waist bottom and a leg bottom are simply connected to each other, and the connecting portion here is used to rotate the back bottom. A fulcrum, that is, an actual fulcrum, is used to perform an undulating motion, and the connecting portion between the waist bottom and the leg bottom is used as a bending point to perform the undulating motion. Therefore,
When the back bottom rises to a certain angle, the space near the connection between the back bottom and the waist bottom narrows, so if the bent state of the bottom is not suitable for the patient's body, the waist and abdomen , The back of the leg will be under pressure from the mattress. The present invention has been made to solve such a problem, and is configured such that the bottom can be bent with an appropriate radius of curvature to make the bent portion of the bottom gentle and the space of the bent portion. It is an object of the present invention to provide a bottom structure in a bed that secures the pressure and suppresses the feeling of pressure.

[0004]

In order to solve the above-mentioned problems, the present invention provides a bed having an undulating mechanism for the bottom, in which a flexible curved bottom is arranged at the bent portion of the bottom, and the curved bottom is provided. The bottom is configured by a plurality of strip-shaped rigid body portions and a bent portion connecting these rigid body portions,
The connection point between this bent part and the rigid part, and the middle of the bent part
The part is formed thinner than other parts,
These thin parts are softer than other parts.
Therefore, the degree of deformation of each bent portion is regulated.
Means is provided, and the bottom portion is configured to be deformable so as to be concave with a restricted curvature on the inner side of the curve . In the above-mentioned configuration, on the end face in the bed width direction in the rigid body part of the curved bottom
It has a shield adapted to be mounted, which shield is
Attach the base and end caps attached to the end faces of each rigid body.
And has the bases connected to each other so as to accommodate the deformation of the bent portion.
The curved bottom is configured to regulate the curved shape, while
The end parts of adjacent end caps are superposed so that they can be displaced from each other.
It can be configured to show. Also, the curved bottom
To be attached to the end face of the rigid body of the bed in the width direction
The shield part and the base part attached to each end of the rigid part
An end cap, and the base has a lid member on the main body.
Adjacent bases are displaced from each other by screwing
This connecting rod can be freely connected by a connecting rod.
Has a bent end portion, and the main body has uneven grooves
And attach the connecting rod freely in the floating groove of the main body.
The end of the connecting rod against the edge of the floating groove.
And to regulate the floating distance in the floating groove,
The main body has a locking part for attaching the end cap.
The end caps are
To form a flat end face
It can be formed thinner than the portion. Also,
The rigid body portion of the curved bottom is a hollow body made of synthetic resin.
And the rigid part and the bent part are integrated
Can be configured. In addition, the curved
Tom on the bottom for the back and the bottom for the waist
Can be interposed between. Furthermore, as above
Place the curved bottom at a location that corresponds to the bottom of the knee
It can also be done.

[0005]

[Action] When the bottom is raised, the bent portion between the rigid portions is deformed so as to be concave inside the curved portion at the curved bottom, and the curved bottom bends so as to draw a smooth curve smoothly. . By the way, the base part of the shielding part is fitted to the bed width direction end face of the rigid part, and the end parts of the adjacent end caps are displaceably overlapped with each other. Since it is covered, there is no risk of accidentally pinching a finger or object. In addition, since the base of the shielding portion is connected to each other so as to follow the deformation of the bent portion, the hanging portion is prevented from being deformed by the weight of the rigid portion, and the curved bottom is bent so as to draw a regulated curve. can do. In this way, the curved bottom bends so as to draw a gentle and smooth curve, so the space at the bending point is not narrowed more than necessary and it is not compressed, reducing the displacement of the body by pushing the waist and abdomen can do.

[0006]

Next, a bottom structure of a bed according to the present invention will be described with reference to the accompanying drawings, taking an embodiment as an example. FIG. 1 shows a bed 1 to which a bottom structure according to the present invention is applied. The bed 1 has, for example, a function of raising the back and a function of raising the leg by an electric starter unit 3 arranged below the bottom 2, and a back raising arm 4 for raising the back and a leg for raising the leg. It has a raised arm 5. The back raising arm 4 is in contact with the lower surface of the bottom 2 corresponding to the back via rollers 6, and the leg raising arm 5 is in contact with the lower surface of the bottom corresponding to the legs via rollers 7.

In the bed 1, flexible bending bottoms 8 are arranged at a portion corresponding to a bending portion between the back and the waist of the bottom 2 and a portion corresponding to a bending portion of the legs. The bottom 8 is made up of a plurality of strip-shaped rigid bodies 9
And a bent portion 10 that can expand and contract in the bed longitudinal direction between the rigid body portions 9 (see FIG. 2). The rigid body portion 9 is a synthetic resin hollow body formed by extrusion molding, and is configured integrally with the bent portion 10 (see FIG. 3). That is, the bending portion 10 is formed by a bendable plate member 11 that connects the rigid body portions 9 located inside the bending of the bottom 2. By forming the connecting portion between the intermediate portion of the plate member 11 and the rigid portion 9 to be thinner than the other portions, it is possible to bend inward around the intermediate portion of the plate member 11. The curved bottom 8 may have a structure in which the rigid portion 9 and the bent portion 10 are separately molded and connected.

On the end face in the bed width direction of the rigid body portion 9 of the curved bottom 8 as described above, the base portion 13 constituting the shielding portion 12 is fitted and the end cap 14 is attached to the base portion 13 ( 2 and 4). The base portion 13 is configured to screw the lid member 16 to the main body 15 (see FIG. 5). The bases 13 adjacent to each other are connected by a connecting rod 17 so that the bases 13 adjacent to each other can be displaced. The connecting rod 17 is movably mounted in the main body 15 with floating grooves 18a and 18b formed in different steps. Further, both ends of the connecting rod 17 are bent, and the ends of the connecting grooves 17 contact the edges of the free grooves 18a and 18b, thereby restricting the free distance in the free grooves 18a and 18b.
The main body 15 is provided with a locking portion 19 for mounting the end cap 14. The end cap 14 is formed so that the overlapping portion is thinner than other portions so as to form a flat end surface with the adjacent end caps 14.

In the bed 1 to which the bottom structure having the above-mentioned structure is applied, the starting unit 3 is started to start the bottom 2
As the floor is raised, the rigid body portion 9
The plate member 11, which is the bent portion 10 between, is deformed so as to be concave toward the inner side of the curve, and the curved bottom 8 draws a reasonably gentle curve on the plate member 11 side connecting these rigid body portions 9. Bend in (see Fig. 3). At that time, the base portion 13 of the shield portion 12 is fitted to the bed width direction end surface of the rigid body portion 9 (see FIG. 6), and in the base portion 13 of the shield portion 12,
The connecting rod 17 floats in the floating grooves 18a and 18b of the main body 15, and the base portion 13 of the adjacent shielding portion 12 is bent.
The gap increases according to the displacement of. Along with this, the overlapping portions of the end cap 14 are displaced. Even if the bent ends of the connecting rod 17 are displaced until they come into contact with the ends of the free grooves 18a and 18b of the main body 15, the end caps 14 are in a state where the ends overlap each other. The bent portion 10 is always covered, and there is no risk of accidentally pinching a finger or an object (see FIG. 7). In addition, as described above, the shield 12
The base portions 13 of the above are connected to each other in such a manner that they follow the deformation of the bending portion 10 and are displaced until the bent both ends of the connecting rod 17 come into contact with the ends of the free grooves 18a and 18b of the main body 15. The sagging deformation due to the weight of the rigid body portion 9 is prevented, and the curved bottom 8 can be bent so as to draw a regulated curve (see FIG. 1). In this way, the curved bottom 8 is bent so as to draw a smooth curve, so that the waist and abdomen can be pushed and the body can be displaced without the space of the bent portion being narrowed more than necessary and being pressed. Can be reduced.

As described above, the curved bottom 8 has the bent portion 10 connecting the rigid body portions 9 and the rigid body portions 9 and the bottom portion 2.
Since it has a simple structure that is configured by the bendable plate member 11 in which the rigid body portions 9 located inside the bend are connected, the manufacturing is easy and the manufacturing cost can be suppressed.

Next, the bottom structure in the bed according to the present invention can be implemented by the constitution described below. In this embodiment, substantially the same components as those in the above-described embodiments are designated by the same reference numerals, and the description thereof will be omitted. In the curved bottom 8 in this embodiment, the connecting portion 20 between the strip-shaped rigid body portion 9 and the bent portion 10 and the bent portion 21 at the center of the bent portion 10 are compared with other constituent portions 22 of the bent portion 10. The connecting portion 20 and the bent portion 21 are made of a softer material than the other constituent portions 22 of the bent portion 10 (see FIG. 8). In the embodiment, the connecting portion 20 between the strip-shaped rigid body portion 9 and the bent portion 10 and the bent portion 21 at the center of the bent portion 10 have the same thickness as the other constituent portions 22 of the bent portion 10. Alternatively, the member 22 may be made of a softer material than the other constituent parts 22. Also,
If the rigid body portion 9 and the bent portion 10 are formed separately and are connected to each other, if they are damaged, only the damaged portion can be replaced and waste can be suppressed.

[0012]

As described above, according to the present invention, since the curved bottom which is configured to be bendable with an appropriate curvature is adopted at the bent portion of the bottom, a feeling of pressure is not felt when the floor is undulated. Can be the bottom. The curved bottom is constituted by a plurality of strip-shaped rigid body portions and a bent portion that connects these rigid body portions.
Since it has a simple structure in which it can be deformed so as to be concave inside the curved inside of the bottom, it is easy to manufacture, and the manufacturing cost can be suppressed. The base of the shielding portion is fitted to the end surface of the curved bottom in the bed width direction, and the end portions of the end caps adjacent to each other are displaceably overlapped with each other. There is no risk of accidentally pinching a finger or object. Since the base of the shielding part is restrained and connected to each other so as to follow the deformation of the bent part, the weight of the rigid part prevents the hanging part from deforming, and the curved bottom can be bent to draw a regulated curve. it can.

[0013]

[Brief description of the drawings]

FIG. 1 is a side view illustrating the essential parts of an embodiment of a bed to which a bottom structure according to the present invention is applied.

FIG. 2 is an enlarged cross-sectional plan view showing an example of a curved bottom at the bent portion of the bottom shown in FIG.

FIG. 3 is a schematic cross-sectional explanatory view showing a structure of an end surface of the curved bottom shown in FIG.

4 is an explanatory plan view showing a configuration of an end surface of the curved bottom shown in FIG.

5 is an exploded perspective explanatory view showing a configuration of a shield part attached to an end surface of the curved bottom shown in FIG. 2. FIG.

FIG. 6 is a schematic explanatory diagram showing a connected state when the curved bottom is flat in the shielding portion shown in FIG.

FIG. 7 is a schematic explanatory view showing a connected state of the shielding part when the bottom is raised.

FIG. 8 is a schematic cross-sectional explanatory view showing another example of the structure of the end surface of the curved bottom according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Bed 2 Bottom 3 Starting unit 4 Back raising arm 5 Leg raising arm 6, 7 Roller 8 Curved bottom 9 Rigid part 10 Bending part 11 Plate member 12 Shielding part 13 Base part 14 End cap 15 Main body 16 Cover member 17 Connecting rod 18a, 18b Floating groove 19 Locking part 20 Connection part 21 Bending part 22 Other component parts of bending part 10

Claims (6)

(57) [Claims] 1. A bed having an undulating mechanism for a bottom, wherein a curved bottom having flexibility is arranged at a bent portion of the bottom, and the curved bottom has a plurality of strip-shaped rigid bodies,
Constituted by a bent portion for connecting the rigid part, this
A connecting portion between the bent portion and the rigid body portion, and an intermediate portion of the bent portion
Is made thinner than the other parts, and
Compare the thin-walled part to the other parts, and
And a means for regulating the degree of deformation of the individual bent portions.
A bottom structure in a bed, characterized in that a step is provided so that the bottom can be deformed so as to be concave with a regulated curvature inside the bottom. 2. A bed in a rigid portion of the curved bottom.
It has a shielding part to be attached to the end face in the width direction, and this
The shields are the base and the ends attached to the end faces of each rigid body.
With a base cap, and the bases are adapted for deformation of the bent portion.
The structure that is flexibly connected to regulate the curved shape of the curved bottom.
On the other hand, the ends of adjacent end caps are
The bottom structure for a bed according to claim 1, wherein the bottom structure is configured to be freely stacked . 3. A bed in the rigid portion of the curved bottom.
The shielding parts that are attached to the end face in the width direction
The base and end cap attached to the end of the rigid body
However, the base has a structure in which the lid member is screwed to the main body.
Therefore, adjacent bases can be displaced from each other by connecting rods
This connecting rod has both bent ends.
Then, form floating grooves on the main body in different steps, and connect the connecting rod.
The loose groove is attached to the loose groove of the main body and the edge of the loose groove
When both ends of the connecting rod hit against the
Set the end cap on the body so that the distance is regulated.
The end cap is provided with a locking part for mounting
Forms a flat end face with adjacent end caps
So that the overlapping part is thinner than other parts.
Bottom structure in bed according to claim 2, characterized in that it is formed. 4. The rigid body portion of the curved bottom is composed of
It is composed of a hollow body made of resin, and has a rigid
The bottom structure for a bed according to any one of claims 1 to 3, wherein the part and the part are integrally formed . 5. The curved bottom has a bottom corresponding to the back.
The bed bottom structure according to any one of claims 1 to 4, wherein the bottom structure is interposed between the bottom and the bottom corresponding to the waist . 6. The curved bottom corresponds to the back of the knee of the bottom.
The bed bottom structure according to any one of claims 1 to 4, wherein the bottom structure is arranged at a predetermined position .