JPH0244225B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a bed apparatus suitable for use in patients.

[Technical background of the invention and its problems]

Patients who are unable to turn over or sit up on their own must remain supine in bed for long periods of time. Remaining in a supine position for a long period of time will cause so-called bedsores, which will increase the patient's pain, so the patient's position must be changed as appropriate to prevent bedsores. . Furthermore, when such patients eat or read, it is extremely inconvenient if they do not raise their upper body; however, it is difficult for the above-mentioned seriously ill patients to do this by themselves.

Therefore, it is desired to develop a bed that allows patients to change their body position and raise their upper body without relying on their own efforts.

[Object of the Invention] This invention was made based on the above circumstances, and its purpose is to provide a bed device that has a simple structure and allows the patient to change his or her body position and to raise the upper body of the patient. There is a particular thing.

[Summary of the invention]

The present invention provides a bed main body with a rotary support body that can freely rotate in the width direction, and a floor plate body on which a patient lies on a central floor plate and lateral sides that are connected to the central floor plate and both sides thereof so as to be rotatable only in an upward direction. The bed body is formed of a plurality of floor parts consisting of a floor plate, and these plural floor parts are arranged along the longitudinal direction of the rotary support, and the central floor plates are rotatably connected to each other. The center floor plate of the floor section to be located is fixed to the rotating support, and a stopper body is brought into contact with the lower surface of each of the side floor sections, so that each of the side floor plates is lowered in conjunction with the rotation of the rotating support. A first drive mechanism is provided on the rotary support body to rotate and raise a floor portion located at one end in the longitudinal direction of the bed body, and the rotary support body is mounted on the bed body in the width direction. This bed device is provided with a second rotating drive mechanism, and the user's upper body is raised by operating the first drive mechanism, and the user's body position is changed by operating the second drive mechanism.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1 in FIG. 1 is the bed body. This bed body 1 consists of a pair of side plates 2 facing each other and spaced apart in parallel.
, a headboard 3 attached to one end of the side plate 2 in the longitudinal direction, and a footboard 4 attached to the other end. First horizontal rods 5 are installed at both ends of the side plate 2 in the longitudinal direction.
A first mounting plate 6 is erected at the longitudinal center of each horizontal rod 5 with its lower end fixed. These mounting plates 6
A rotating support 7 formed in a rectangular frame shape is provided at the upper end of the
is rotatably supported at both ends in the longitudinal direction. In other words, the rotary support body 7 is rotatable in the width direction. A floor plate body 8 is provided on this rotary support body 7. This floor plate body 8 is formed of a plurality of floor parts divided in a direction perpendicular to the longitudinal direction of the bed main body 1, in this embodiment, first to fourth floor parts 9, 10, 11, 12. .
Each floor section is formed of a central floor plate 13 and side floor plates 14 connected to both sides of the central floor plate 13 so as to be rotatable only in an upward direction. These connection structures are as shown in FIG. That is, first mounting members 15 each having a substantially U-shape in cross section are fixed to both ends of the lower surface of each center floor plate 13 along the width direction. Both ends of these first mounting members 15 protrude from both sides of the central floor plate 13. At this projecting end, a side floor plate 14 is provided.
The end of a second attachment member 16 which is fixed to the lower surface of the housing and protrudes from one side of the attachment member 16 is pivotally attached. This second mounting member 16 has a larger U-shaped cross section than the first mounting member 15.
5 is housed inside. Therefore, the side floor plates 14 can freely rotate in the upward direction shown by the arrow in FIG. 8 with respect to the central floor plate 13, but are prevented from rotating downward in the opposite direction.

The central floor plate 13 of the second floor section 10 is fixed to the rotating support 7. Further, the central floor plates 13 of each floor portion 11 are rotatably connected to each other via tongue pieces 17a extending from both ends in the width direction of the end portions along the length direction of the bed main body 1. The first floor section 9 can be rotated and raised by a first drive mechanism 17. That is, the first drive mechanism 17 includes a drive source 18 and a drive shaft 19 that is driven in the axial direction by the drive source 18, as shown in FIG. The drive source 18 is pivotally connected to a bracket 20 which is vertically disposed from the lower surface of the end of the rotary support 7 located on the headboard 3 side. One end of an arm 21 is pivotally attached to the tip of the drive shaft 19. The other end of the arm 21 is fixed to a midway portion of the operating shaft 22. This operating shaft 2
2 has both ends fixed to a pair of mounting plates 23 provided along the longitudinal direction on the lower surface of the central floor plate 13 of the first floor section 9, as shown in FIG. One end of these mounting plates 23 protrudes toward the lower surface of the second floor 10, and a roller 24 is rotatably provided at the protruding end, as shown in FIG.
These rollers 24 have one end connected to the third floor section 1.
It is slidably engaged with a guide member 25 having a U-shaped cross section and fixed to the lower end of the central floor plate 13 of No. 1.
Further, the central floor plate 13 of the fourth floor portion 12 and the rotation support body 7 are connected by a link 26. Therefore, the drive source 1 of the first drive mechanism 17
8 to drive the drive shaft 19 in the direction indicated by the arrow in FIG. 2, the first floor portion 9 is rotated and raised as indicated by the chain line in the figure. As the first floor section 9 rotates upward, the roller 24 presses the guide member 25 and rotates it, so that the third floor section 1
1 rotates in a direction in which the other end is raised using one end, which is a pivot point with the second floor part 10, as a fulcrum, and the fourth floor part 12 is interlocked with this rotation.

On the other hand, at both ends of the pair of horizontal bars 5, there are second
A mounting plate 30 is erected with its lower end fixed. A support shaft 31 is installed between each pair of second mounting plates 30 corresponding to each other in the width direction of the bed main body 1 . Each support shaft 31 has a presser roller 3 as a stopper body that comes into contact with the lower surface of the side floor plate 14 of each floor.
2 is rotatably provided. In other words, as shown in FIG. It prevents it from rotating in the width direction. The rotation support body 7 is rotationally driven in the width direction by the second drive mechanism 33. That is, as shown in FIG. 4, the second drive mechanism 33 includes a drive source 34 and a drive shaft 3 that is driven in the axial direction by the drive source 34.
5. The drive source 34 is connected to a pair of second horizontal rods 36 on the lower surface side of the third floor portion 11.
It is pivotally connected to a support member 37 attached to.
The second horizontal rod 36 is connected to the pair of first horizontal rods 5.
The bed body 1 is constructed along the width direction of the bed body 1 with its both ends secured to a pair of vertical rods 38 which are constructed along the longitudinal direction of the bed body 1 with both ends secured respectively to both ends of the bed body 1 . A support shaft 39 is installed between both ends of the vertical rod 38 in the longitudinal direction so as to be freely rotatable along the width direction of the bed body 1. A first arm 40 made of a pair of plate materials is provided in the middle of each support shaft 39, with one end fixed thereto. Both ends of links 41 are rotatably connected to the other ends of the pair of arms 40 located at both ends of the bed body 1 in the longitudinal direction, respectively, by pivot shafts 42 . The tip of the drive shaft 35 is rotatably connected to a pivot shaft 42 of an arm 40 located on the headboard 3 side. Also,
The first arm 4 is attached to one end of each support shaft 39.
One end of the second arm 43 is fixed at an angle substantially perpendicular to 0. Between the other ends of these second arms 43 and a bracket 44 fixed to one side in the width direction of the rotation support 7, there are rod end bearings 45 screwed to both ends, as shown in FIG.
A connecting shaft 46 is provided via the connecting shaft 46 . This connecting shaft 46 has opposite threads formed at both ends.
Both ends are screwed into the rod end bearings 45, and an operating body 47 for rotating the connecting shaft 46 is fixed to the middle part. Therefore,
The connecting shaft 46 is swingable in the longitudinal and lateral directions relative to its axis by the rod end bearing 45, and the distance between the pair of rod bearings 45 can be adjusted by rotating the operating body 47. There is. When the drive source 34 of the second drive mechanism 33 is activated and the drive shaft 35 is driven in the protruding direction shown by the arrow in FIG. Since the arms 40 and 43 rotate via the link 41, the connecting shaft 46 is pushed up by the second arm 40, as shown in FIG. 5, and the rotating support 7 is connected to the connecting shaft 46. One axial end is rotated in the upward direction. Further, when the drive shaft 35 is driven in the opposite direction, the rotary support 7 is rotated in a direction in which one end in the width direction connected to the connecting shaft 46 is lowered. In other words, the rotary support body 7 can be rotated in the left-right direction using the pivot point with the mounting plate 6 as a fulcrum, as shown by the chain line in FIG.

When the rotary support body 7 rotates, the floor plate body 8 to which the central floor plate 13 of the second floor portion 10 is fixed moves in conjunction with the rotary support body 7. A press roller 32 is in contact with the lower surface of each side floor plate 14 of the floor plate body 8. Therefore, the side floorboards 14 connected to one side in the width direction of the center floorboard 13, which descends together with the rotary support 7, are prevented from descending by the presser rollers 32, bend upward, and bend to the other side. The connected side floor plates 14 rise while maintaining the same inclination angle as the central floor plate 13 without bending.

Incidentally, casters 50 are rotatably provided at the lower ends of the headboard 3 and footboard 4.

According to the bed device configured in this way, if the first drive mechanism 17 is operated to rotate and raise the first floor part 9 as shown by the chain line in FIG. The user who is lying on his back has his upper body raised up by the first floor section 9. Therefore, you can eat, read, etc. with ease. Also, when the first floor section 9 is rotated and raised, the third floor section 9 is rotated upward.
The floor portion 11 and the fourth floor portion 12 are tilted such that their pivot ends are raised. Therefore, the user's buttocks located on the second floor section 10 are prevented from shifting forward by the slanted third floor section 11, so the user cannot do things like press his feet. You can easily maintain an upright posture without lifting your upper body.

On the other hand, the first to fourth floor sections 9, 10, 11, 1
2 horizontally, the user lies supine on the center floor plate 13 of each floor, that is, on the widthwise center of the floor plate body 8, and operates the second drive mechanism 33. is rotated in the width direction as shown by the chain line in FIG. Then, since the user's body is laterally tilted in accordance with the rotation of the floorboard body 8, the user's body position can be changed in the same way as when turning over in bed. At this time, the side floorboards 14, which are on the lower end side in the inclination direction of the floorboard body 8, are prevented from descending by the presser rollers 32 and are bent upward, so that the bent side floorboards 14 prevent the user from falling. Prevented. In this way, by tilting the floorboard body 8 alternately in both left and right directions at regular intervals, it is possible to prevent a user who is unable to turn over on his own from causing bedsores.

〔Effect of the invention〕

As described above, according to the present invention, the floor plate body is formed from a plurality of floor sections, the floor section located at one end in the longitudinal direction of the bed main body can be rotated and raised, and each floor section is made up of a plurality of floor sections. It is formed from a central floor plate and side floor plates connected to both sides thereof so as to be rotatable only in the upward direction, and this floor plate body can be rotated in the width direction, and at that time, it becomes the lower end side. The side floorboards were bent upwards.
Therefore, the user on the floorboard body can raise his or her upper body by rotating and raising the floor part.
By rotating the floorboard body in the width direction, the user's body position can be changed as if he were just turning over, and at this time, the side floorboards bending upward prevent the user from falling from above the floorboard body. is prevented. Furthermore, the floor plate body can be rotated to the left and right in the width direction by a single drive mechanism, and the side floor plates are bent upward in conjunction with the rotation, so that the floor plate body can be rotated from side to side and rotated from side to side. The structure is simplified compared to the case where each bending of the floorboard is driven by a separate drive mechanism. Further, the rotary support body is rotated in the width direction by a second drive mechanism via a pair of connecting shafts having one end connected to one end side in the width direction of both ends in the longitudinal direction. Therefore, even if the rotating support is long, twisting is unlikely to occur between one end and the other end in the longitudinal direction, so the rotating support can be smoothly rotated by the second drive mechanism. Can be done.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a plan view of the entire structure with the second drive mechanism omitted, FIG. 2 is a sectional view taken along the line shown in FIG. 4 is a cross-sectional view taken along the line in FIG. 3, FIG. 5 is a side view taken along the line in FIG. 3, and FIG. 6 is an enlarged sectional view taken along the line in FIG. 1. Figure 7 is a front view of the overall structure, Figure 8 is an enlarged cross-sectional view of the connecting part between the central floor plate and the side floor plates,
FIG. 9 is an enlarged sectional view of the connection structure between the connection shaft and the rotating support. 1... Bed main body, 7... Rotating support body, 8...
Floor plate body, 9-12...floor part, 13...center floor plate,
14... Side floor plate, 17... First drive mechanism, 3
2... Presser roller (stopper body), 33... Second
drive mechanism.

Claims (1)

[Claims] 1 A bed main body, a rotating support disposed along the longitudinal direction of the bed main body, whose longitudinal ends are pivotally supported by the bed main body, and rotatable in the width direction; a plurality of floor sections formed from side floor plates rotatably connected to each other are arranged along the longitudinal direction of the rotary support, and the center floor plates of each floor section are rotatably connected to each other. and a central floor plate of the floor section located in the central part in the longitudinal direction of the bed body is fixed to the rotary support body, and a floor plate body provided on the rotary support body and located at one end side in the longitudinal direction of the bed body. a first drive mechanism that rotates and raises the floor; and a first drive mechanism that is provided on both sides of the bed main body in the width direction and that comes into contact with the lower surface of the side floor plates of each floor so that these side floor plates rotate the rotating support. a stopper body that prevents the bed from descending in conjunction with the rotating support; a pair of connecting shafts each having one end connected to one end in the width direction of both longitudinal ends of the rotary support; It consists of a link whose both ends are pivotally connected via a rotatable arm, and a drive source that drives the drive shaft connected to this link in the axial direction.By driving the drive shaft with this drive source, the above The rotary support body is rotated in the width direction by a pair of connecting shafts, and the side floor plate located at one end in the width direction where each floor part descends is connected to the center floor plate at one end in the width direction by the stopper body. A bed device comprising: a second drive mechanism that rotates the bed upward using the bed as a fulcrum.