JP3299529B2 - Nursing beds - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nursing care bed, and more particularly to a nursing care bed in which the back of a floor on which a care receiver is lying revolves and the front reciprocates.

[0002]

2. Description of the Related Art The circulation of blood in the human body is mainly controlled by the action of the heart, and in conjunction with the action of the heart, the daily movement of the body facilitates the smooth flow of blood in the body. Has been maintained. However, a bedridden caregiver cannot take the above-mentioned daily movements of the body, which may cause a delay in blood flow circulating in the body, which may lead to deterioration of functions of internal organs and tissues. It is also well known that stagnant blood flow causes floor swelling at a body part in contact with the floor. Therefore, caregivers sometimes have to move the care recipient's body to improve blood flow.However, in the current situation where the aging is progressing and the number of care recipients is increasing and the number of caregivers is insufficient, such work is It is a burden for caregivers.

[0003] Therefore, the blood flow of the care-receiver is promoted by moving the bed of the bed (preventing the bed from being displaced).
Various nursing beds are provided. For example, JP
Japanese Patent Application Publication No. 0-137 discloses that two right and left
A floor portion that is divided into two and pivotally connected to each other, and a tilting mechanism that rotates and tilts the floor portion, and selectively rotates only one of the left and right floor portions by rotating the rotation shaft of the worm gear. A bed apparatus capable of holding the other floor part horizontally is disclosed. Japanese Utility Model Laid-Open No. 6-57336 discloses that a piston provided on an upper portion of a telescopic leg is vertically movably accommodated in a cylinder tube, and the upper portion of the leg is attached to four corners of a bed. A hydraulic circuit is formed by connecting the piping with a lock valve, and the lower end of the rack, which moves in conjunction with the lifting motor mounted on the cylinder cylinder, is connected to a telescopic leg, and the control device controls and operates the lifting motor and the lock valve. A pressure ulcer prevention bed in which the bed is tilted by alternately expanding and contracting the legs by doing so is disclosed.

[0004]

However, in any of the above nursing care beds, the movement of the bed floor is integral, in other words, the head of the cared person who lies down with the movement of the floor is also other than that. The body part also performs the same integral movement. By the way, it is well known that the central nervous system is highly concentrated in the head, and excessive stimulation of the head is not preferable, and it is necessary to pay particular attention to children and elderly people. Therefore, unlike the conventional nursing care bed, a nursing care bed capable of preventing excessive stimulation from being applied to the head of the care receiver and promoting blood flow is desired. Further, each of the above nursing beds has a large number of parts and a complicated configuration.

Accordingly, the present invention has been made in view of the above circumstances, and it is possible to reliably promote blood flow without applying excessive stimulation to the head of a cared person and to reduce the number of parts. An object is to provide an inexpensive nursing bed having a simple configuration.

[0006]

Means for Solving the Problems The present invention has been intensively studied in order to solve the above-mentioned problems, and a nursing care bed according to claim 1 has a frame body provided with front and rear frames and side frames. , A floor body disposed in the base, and a rotation shaft which is rotatably supported above and behind the side frame of the base and which is disposed between the side frame and the floor body, respectively. And the both sides of the back of the floor are connected to each other at a distance between the rotating body and the rotating shaft so as to be rotatable, and the front of the floor is placed on a front frame of the base. The floor can be reciprocated back and forth with the rotation of the back of the floor.

[0007] According to the nursing bed of the above construction, the rotating body rotates as a crank, so that the rear of the floor also rotates, and the front reciprocates forward and backward on the front frame of the base. The blood flow of the cared person can be sufficiently promoted, and no excessive stimulation is applied to the head of the cared person.

[0008] The nursing care bed according to claim 1 is
It is preferable that the rotating body is driven to rotate via a worm speed reducer mounted on the rotating shaft of the rotating body at a position above and behind the side frame of the base. According to the nursing care bed having this configuration, the back of the floor can be slowly rotated, and can be rotationally driven by a motor, so that no burden is imposed on the caregiver.

Further, in the nursing care bed according to claim 1 or 2, it is preferable to provide a friction reducing means on the front frame of the base. According to the nursing bed of this configuration, the front of the floor can smoothly reciprocate on the front frame.

In the nursing care bed according to the first to third aspects of the present invention, it is preferable to provide a guide means for guiding the reciprocating movement of the floor on the front frame of the base. According to the nursing bed having this configuration, it is possible to prevent the front of the floor body reciprocating on the front frame from swinging left and right.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment as an example of a care bed according to the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a nursing bed according to the present embodiment, and FIG. 3 is a rear view. The nursing bed includes a base of a frame, a floor disposed in the base, and a rotating body disposed between the side frame of the base and the floor, and the floor is a base. It is configured to be able to exercise within. In the drawing, 1 is a base, 1
0 indicates a floor, and 20 indicates a rotating body.

As shown in FIG. 2, a base 1 on which the floor 10 is disposed is a front frame 2 of a plate made of wood or metal.
The rear frame 3 and the side frames 4 are frame bodies assembled in a rectangular shape, and support the floor body 10 described later in the base 1 movably. An insertion hole 5 through which the rotating shaft 21 of the rotating body 20 is inserted is formed above and behind the side frames 4 so that the rotating shaft 21 is supported by the shaft. In addition, the rotating shaft 21 of one rotating body 20 includes:
As shown in FIGS. 1, 3 and 4, a worm speed reducer 30 is mounted outside the side frame 4 so that the rotating body 20 can be driven to rotate by a motor 33 fixed to a support base. The worm reduction device 30 mounted on the rotating shaft 21 has a worm wheel 31 fitted on the rotating shaft 21 of the rotating body 20 outside the side frame 4. , A timer (not shown) is connected to the motor 33.
Is connected, the rear of the floor 10 can be slowly rotated periodically for a desired time. Although the worm speed reducer 30 is not mounted on the rotating shaft 21 of the other rotating body 20 as shown in FIG. 3, the worm speed reducer 30 may be mounted.

The rotating body 20 which is driven to rotate by the motor 33 is provided between the side frame 4 and the floor body 10 above and behind the side frame 4.
Are formed from a disc-shaped metal or the like which is disposed between them. Further, since the rear of the floor 10 is connected to the rotating body 20 at both sides thereof at a position separated from the rotating shaft 21, the rear of the floor 10 and the rotating body 20 are rotated by rotating the rotating body 20 as a crank. 6 (see FIG. 6) can rotate around the rotation axis 21 of the rotating body 20. The shape of the rotating body 20 is not limited to the disk shape.

As described above, the floor body 10 that rotates rearward by the rotation of the rotator 20 includes a rectangular floor frame 11 and a bottom plate 12 formed of a wooden material or metal as shown in FIG. A protection fence 13 is provided upright on each floor frame 11. The protective fence 13 erected on the floor frame 11 on both sides is the floor frame 1
1 is configured to be detachable from a perforation formed on the upper surface.
The bottom plate 12 is composed of a front substantially square plate and a plurality of rear rectangular plates, and the lower surface of the substantially square bottom plate 12 is on the front frame 2 of the base 1 on which the floor 10 is placed. Can be reciprocated via wheels 6. Then, as shown in FIG. 1, a mat 14 can be laid on the bottom plate 12 so that the care receiver can lie down. The floor body 10 configured as described above is arranged in the base 1 and is movably supported by the base 1. That is, the rear of the floor 10 is connected to the rotating body 20 by the connecting rod 14 as shown in FIG. 3, and one end of the connecting rod 14 is fixedly connected to the rear of the floor 10 and the other end is rotated. It is rotatably connected near the outer peripheral edge of the body 20. Further, the front of the floor 10 is placed on the front frame 2 of the base 1. Therefore, the rotating body 20 on which the worm speed reducer 30 described above is mounted is connected to the motor 33.
, The connecting portion 22 (see FIG. 6) between the rear of the floor 10 and the rotary body 20 also rotates around the rotation axis 21, and the front of the floor 10 moves on the front frame 2 with the rearward rotation. Can reciprocate back and forth.

Since the front of the floor 10 reciprocates on the front frame 2, frictional resistance is generated between the upper surface of the front frame 2 and the lower surface of the bottom plate 12 in front of the floor 10, and is shown in FIG. As described above, the wheels 6 are fixed on the front frame 2 as antifriction means,
Can smoothly reciprocate on the front frame 2 via the wheels 6. Further, as shown in FIG. 2, guide members 7 are opposed to each other on the front frame 2 at a substantially short width interval of the floor 10 in order to prevent the reciprocation of the floor 10 in the front-rear direction from swaying right and left. Has been established.

The nursing bed 50 of the present invention described above.
Can be manufactured at low cost because it has a small number of parts and a simple configuration.

Next, the operation of the floor 10 in the nursing bed 50 will be described with reference to FIG. In the present embodiment, as shown in FIG.
The height of the front frame 2 is set so that the floor body 10 is horizontal at a position where the connection part 22 with 0 is at the highest point of the rotating body 20. P indicates the position of the head of the care receiver who lies down, and Q indicates the position of the feet. The back of the floor body 10 rotates with the rotation of the rotating body 20 that rotates as a crank in the direction of the arrow, and if the connecting portion 22 between the floor body 10 and the rotating body 20 becomes the position of FIG. Is the front frame 2 from the horizontal position in (a) to the position where the floor 10 is located at the forefront.
Moving upward, Q moves to the lower left from the position of (a).
Further, if the connecting portion 22 between the floor body 10 and the rotating body 20 is rotated and comes to the position of FIG. 6C, P moves on the front frame 2 rearward from the position of FIG. Will move to the lowest position. Next, the floor 10 and the rotating body 2
The rotation of the connecting part 22 to the upper part of FIG.
, P moves from the position (a) to the rearmost position, and Q moves to the upper right from the position (c). That is, Q rotates around a virtual rotation axis located on the left side of the rotating body 20, and the floor body 10 gradually reciprocates because the front frame 2 obstructs rotation as it goes forward. It reciprocates back and forth on the front frame 2 with a downward slope. In this manner, the lower part other than the head of the care receiver lying on the floor body 10 can be sufficiently changed by the backward rotation of the floor body 10, so that the blood flow is sufficiently promoted. The front part of the floor body 10 where the part is located reciprocates and does not fluctuate as much as the rear part of the floor body 10, so that no excessive stimulation is applied to the head. It should be noted that θ in FIG.
Indicates the maximum inclination angle at which the front of the floor 10 in the present embodiment is inclined.

In the nursing bed 50 of the present invention, the inclination direction accompanying the reciprocation of the floor 10 can be changed by changing the height of the front frame 2 on which the front of the floor 10 is placed. For example, if the height of the front frame 2 is set so that the floor 10 is horizontal when the connecting portion 22 between the rotating body 20 and the floor 10 is at the position shown in FIG. Forwardly reciprocates forward and backward with the maximum inclination angle repeating inclination upward and downward by θ / 2 with respect to the maximum inclination angle θ of FIG. 6C. Further, a connecting portion 2 between the rotating body 20 and the floor body 10
When the height of the front frame 2 is set so that the floor 10 is horizontal when the position 2 is at the position shown in FIG. 6C, which is the lowest point of the rotating body, the front of the floor 10 is at the maximum inclination. The angle reciprocates back and forth with the angle rising to the right by the same angle θ as the maximum angle of inclination θ in FIG. 6C. In order to reduce the value of the maximum inclination angle θ of the floor 10, the radius of rotation of the floor 10 that rotates around the rotation axis 21 of the rotator 10 may be reduced.

The care bed according to the present invention can be modified in various modes, and is exemplified below. (1) The base 1 may be provided with legs provided with legs and casters with stoppers.
3 and 4 may be formed by a rod instead of a plate. Further, the floor frame 11 of the floor body 10 shown in the above embodiment is configured as a base, and legs are provided on
Is formed as a single plate, and this is configured as a floor, and this floor can be a nursing care bed that can rotate and reciprocate in the base via a rotating body, and further provided on the base. It is also possible to provide a nursing bed having a mechanism for moving the base up and down on the legs. (2) The handle may be connected to the worm speed reducer 30 via a bearing, and the rotating body 20 may be rotationally driven manually. (3) The upper surface of the front frame 2 may be formed in a semicircular shape, and a part of the plurality of balls may be embedded in the front frame 2 to reduce the frictional resistance with the floor 10.

[0020]

The present invention has the following effects because it is configured as described above in detail. According to the nursing care bed of the first aspect, the blood flow of the care receiver lying on the floor can be sufficiently promoted by the rotation of the rear of the floor, and the function of internal organs and tissues due to insufficient blood flow. Not only can the drop be prevented, but also the floor can be prevented beforehand. Further, since the front of the floor reciprocates and does not fluctuate as much as the rear, excessive stimulation is not applied to the head of the cared person, and a care bed that is gentle to the cared person can be provided. In addition, the nursing care bed according to the present invention can be manufactured at low cost because the number of parts is small and the configuration is simple.

According to the nursing bed of the second aspect,
In addition to the above effects, the rotating body can be rotated slowly, so that the rear of the floor body also rotates slowly, so that no excessive burden is applied to the care receiver. In addition, since the rotating body can be driven to rotate by the motor, no burden is imposed on the caregiver.

According to the nursing care bed according to the third aspect,
In addition to the effects described in the first or second aspect, the front of the floor body can smoothly reciprocate on the front frame.

According to the nursing bed according to the fourth aspect,
In addition to the effects of the first to third aspects, the front of the floor body can smoothly reciprocate back and forth without swinging left and right.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a nursing bed according to an embodiment.

FIG. 2 is a perspective view showing a base of the nursing bed according to the embodiment.

FIG. 3 is a rear view of the nursing bed of FIG. 1;

FIG. 4 is a partial side view of the nursing bed of FIG. 1 showing the worm speed reducer.

FIG. 5 is a perspective view showing a floor of the nursing bed according to the embodiment.

FIG. 6 is a diagram schematically showing the operation of the floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Front frame 4 Side frame 6 Wheel 7 Guide member 10 Floor body 11 Floor frame 12 Bottom plate 20 Rotating body 21 Rotating shaft 22 Connection part 30 Worm reduction gear 33 Motor 50 Nursing bed P Head of the care receiver who lies down Position Q Position of feet of the care receiver lying down

Continuation of front page (56) References JP-A-10-137 (JP, A) JP-A-59-151913 (JP, A) JP-A-63-139551 (JP, A) JP-A-8-33537 (JP, A) JP-A-6-113934 (JP, A) JP-A-62-19166 (JP, A) JP-A-61-47852 (JP, U) JP-B-52-37422 (JP, B2) 7-32733 (JP, B2) Registered utility model 3022761 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A61G 7/005 A47C 17/00

Claims (4)

(57) [Claims] 1. A base of a frame having front and rear frames and side frames, a floor disposed in the base, and a rotating shaft supported by a rear upper portion of the side frame of the base. A rotating body is provided between the side frame and the floor, and the back of the floor is rotatably connected to both sides of the rotating body at a position separated from the rotating body by a rotating shaft. A nursing care bed, wherein the front of the floor is placed on the front frame of the base so as to be able to reciprocate back and forth with rotation of the back of the floor. 2. The nursing care device according to claim 1, wherein the rotating body is rotationally driven via a worm reduction device mounted on a rotating shaft of the rotating body at a position above and behind the side frame of the base. bed. 3. The nursing bed according to claim 1, wherein antifriction means is provided on a front frame of the base. 4. The nursing care bed according to claim 1, wherein guide means for guiding reciprocation of the floor is provided on the front frame of the base.