JP2003111804A - Bed equipment - Google Patents

Abstract

(57) [Summary] The object of the present invention is to provide a bed apparatus capable of changing a body position by lowering a supporting height of a patient. The mounting frame is vertically driven by a vertical drive mechanism provided on a base and has a receiving member. One end and the other end in a width direction are supported by a receiving portion, and the one end and the other end are supported. A rotating frame 32 that can swing in a direction in which the ends are fulcrums and the end opposite to the fulcrum rises, and a driving mechanism 37 drives the link mechanism 40A to swing the rotating frame in the width direction. It has a swing drive means 35, a central floor plate 62, and a pair of side floor plates 64 connected to both sides in the width direction of the central floor plate so as to be rotatable only upward, and is mounted on the rotating frame. A floor plate body 61 is provided, in which one side floor plate positioned below in the swinging direction by the swinging drive of the rotating frame abuts on the mounting frame and is bent upward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus which is particularly effective for preventing humiliation of a user, such as a sick person or an elderly person, who has difficulty in moving his / her body by himself.

[0002]

2. Description of the Related Art A patient who cannot turn over or wake up by himself must stay in a supine position for a long period of time. In this way, if you are in a supine position for a long period of time, it causes humiliation,
Because of increased patient distress, the patient's body position may need to be changed accordingly to prevent insult, and such bed devices have been developed.

Conventionally, the following structure has been adopted as this type of bed apparatus. That is, the bed apparatus has a bed body, and the bed body is provided with a rotating frame supported rotatably in the left-right direction with the center in the width direction as a rotation axis. A floor plate is provided on the rotating frame. The floor plate body is composed of a central floor plate and side floor plates connected to both sides of the central floor plate so as to be rotatable only in an upward direction.

When the rotating frame is rotated in the left-right direction with the center in the width direction as a rotation axis, the side floor plate at one end in the width direction located in the descending direction of the rotating frame hits the stopper and rotates downward. When the movement is blocked, it bends upward. Thereby, the patient lying on the central floorboard is changed in position according to the rotation of the central floorboard, and is prevented from falling from the floorboard body by the side floorboards bent upward. Therefore, by rotating the rotary frame alternately in the left-right direction to change the body position, it is possible to prevent humiliation.

By the way, in the bed apparatus having the above-mentioned structure, when the posture of the patient is changed, the center frame of the floor panel is rotated by swinging the rotary frame in the left-right direction with the center in the width direction as a fulcrum. I am trying to interlock with the rotation of.

Therefore, the rotary frame has a pivoting motion in which one of the left and right sides is raised and the other is lowered with the center in the width direction as a fulcrum, and the other is lowered, and the central floor plate is interlocked with the pivoting motion. .

As described above, when the rotating frame is rotated with the center in the width direction as a fulcrum, one end side in the width direction must be able to rotate downward, and a sufficient space must be secured on the lower surface side of the rotating frame. . For that purpose, the height of the bed main body, that is, the support height of the central floor plate with respect to the bed main body must be increased.

If the support height of the central floorboard is increased, it may be difficult for the user to get on and off the upper surface of the central floorboard. Especially, if the user is sick, he may not be able to get on and off by himself, which is very inconvenient. . Therefore, the lower the supporting height of the floor plate provided on the bed body is, the easier it is for the patient to get on and off.

Therefore, the applicant of the present invention filed a patent No. 301277.
A bed device disclosed in Japanese Patent Laid-Open No. 9-214991 has been proposed. The bed apparatus shown in this publication has a base frame, and a mounting frame is vertically movable on the base frame by a vertical drive mechanism.

A support is provided on the mounting frame, and a rotary frame is swingably provided on the support with one end in the width direction and the other end as a fulcrum. A link mechanism is connected to the rotary frame, and the link mechanism is driven by a drive source provided on the support. Further, the rotating frame is provided with a central floor plate and floor plate members to which side floor plates are connected respectively on both sides in the width direction of the central floor plate so as to be rotatable only in the upward direction.

Therefore, since the rotating frame is swingably driven in such a manner that one end in the width direction serves as a fulcrum and the other end rises, it is not necessary to secure a space on the lower surface side of the rotating frame as in the conventional case. Become.

[0012]

However, the bed apparatus disclosed in the above patent publication has a structure in which the mounting frame, the support frame and the rotary frame are sequentially laminated on the base. That is, three frames were sequentially provided on the base.

Therefore, since the number of frames is large, the weight of the bed apparatus is increased, and the height of the floor plate provided on the uppermost rotating frame when it is lowered is high, which makes it difficult to use. There was an occasion.

According to the present invention, by reducing the number of frames without deteriorating the function, the weight can be reduced, and the height when the floor plate is lowered can be reduced. The purpose is to provide a bed device that has

[0015]

According to the present invention, there is provided a base, a vertical drive mechanism provided on the base, a vertical drive mechanism provided on the base and vertically driven by the vertical drive mechanism, and a receiving portion. The mounting frame, and one end and the other end in the width direction are supported by the receiving portion of the mounting frame, and the one end and the other end are used as fulcrums, respectively, and swing in a direction in which the end opposite to the fulcrum rises. With a possible rotating frame,
It has a link mechanism connected to the rotating frame and a drive source provided in the mounting frame for driving the link mechanism, and the rotating frame is shaken in the width direction by driving the link mechanism by the drive source. The oscillating drive means for driving dynamically, the central floor plate, and a pair of side floor plates connected to both sides in the width direction of the central floor plate so as to be rotatable only in an upward direction, and are mounted on the rotary frame. A bed apparatus, comprising: a floor plate body, one side floor plate positioned below in the swing direction when the rotary frame is swing-driven, abutting against the mounting frame and bending upward. It is in.

According to a second aspect of the present invention, side floor plates located below the floor plate in the swinging direction are brought into contact with both sides of the mounting frame in the width direction when the rotating frame swings. The bed apparatus according to claim 1, further comprising an abutting member that bends the side floor plate upward.

According to the present invention, it is only necessary to provide two frames, a mounting frame and a rotating frame, on the base, so that it is possible to reduce the weight and to lower the height of the floor plate when descending. .

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. The bed apparatus shown in FIG. 1 includes a base 1. The base 1 is formed in a rectangular frame shape, and casters 2 with stoppers are provided at the four corners of the lower surface thereof.
Is provided. As shown in FIG. 3, a pair of brackets 3 are erected on both ends of the base 1 in the longitudinal direction at corresponding positions in the width direction. A pair of rotating shafts 5 that constitute the vertical link mechanism 4 are rotatably installed on each pair of brackets 3. One end of a pair of levers 6 is fixed to both ends of each rotary shaft 5, respectively. Both ends of a support shaft 7 are fixed to the other ends of the pair of levers 6, respectively. Rollers 8 are rotatably provided at both ends of the pair of support shafts 7, respectively.

One end of the first arm 9 is fixedly attached to the middle of the one rotating shaft 5, and the second arm is attached to the middle of the other rotating shaft 5.
The middle part of the arm 11 is fixed. One end and the other end of the interlocking rod 12 are pivotally attached to the other end of the first arm 9 and one end protruding downward of the second arm 11, respectively. A vertical drive mechanism 13 is provided on the upper surface of the intermediate portion of the interlocking rod 12.
Is provided. The vertical drive mechanism 13 is composed of a drive source 14 mounted on the interlocking rod 12 so as to be swingable, and a drive shaft 15 driven forward and backward by the drive source 14.
The tip of the drive shaft 15 is pivotally attached to the other end of the second arm 11.

When the vertical drive mechanism 13 is actuated and the drive shaft 15 thereof is driven in the projecting direction, the second arm 11 rotates clockwise as indicated by arrow a in FIG. The rotating shaft 5 of is interlocked. When the second arm 11 rotates, the rotation causes the interlocking rod 12 to slide in the direction indicated by the arrow b, and the first arm 9 rotates in the clockwise direction indicated by the arrow c.

When the first arm 9 and the second arm 11 rotate in the same counterclockwise direction, the pair of levers 6 each having one end connected to each arm rise from the laid state shown in FIG. Turn to.

The rollers 8 at both ends of the support shaft 7 connected to each lever 6 are U-shaped in cross section provided on both sides of both ends of a mounting frame 21 having a rectangular frame shape as shown in FIG. Is rotatably engaged with the guide rail 22. Each guide rail 22 is attached and fixed to the mounting frame 21 via a bracket 133a. Therefore, when the pair of levers 6 rotate in the upright direction, the rotation causes the mounting frame 21 to be raised via the rollers 8.

In order to prevent the raised mounting frame 21 from freely moving along the longitudinal direction by the engagement between the guide rail 22 and the roller 8, the mounting frame 21 and the lever 6 are prevented from moving. As shown in FIG. 4, one end and the other end of the connecting link 23 are rotatably connected to the longitudinal midway portion. This connecting link 23 prevents the above-mentioned mounting frame 21 supported by the roller 8 of the guide rail 22 from moving freely in the horizontal direction. Further, the mounting frame 21 can be disassembled from the base 1 by removing the connecting link 23.

As shown in FIG. 4, the rotation fulcrum of the lever 6 is A, the middle point in the longitudinal direction is B, the other end to which the roller 8 is attached is C, and one end is connected to the middle point B. Link 2
When the other end of 3 is D, the lengths of AB, BD, and BC are set to AB = BD and BD = BC, respectively. Therefore, the triangle formed by the three points A, B, C and A, B,
The triangle formed by the three points D is an isosceles triangle.

The points A to D when the mounting frame 21 is raised as shown by the chain line in FIG.
If ', B', C ', D', A ', B', D'3
A triangle formed by points and a triangle formed by three points B ′, C ′, and D ′ are also isosceles triangles.

Therefore, when the lever 6 is rotated and raised in the upright direction from the fallen state, the above triangles maintain an isosceles triangle, so that the other end D of the connecting link 23 has an arrow V.
As shown by, rises to point D'in the vertical direction. Also, point C
And point D are displaced upward to points C'and D'while maintaining substantially the same height in the horizontal direction.

Therefore, since the mounting frame 21 can be raised and lowered in a horizontal state without sliding in the horizontal direction, the mounting frame 21 is inclined along the longitudinal direction, or the end portion in the longitudinal direction is inclined. There is no chance of hitting the wall.

A first mounting hole 24 is formed at both ends of the horizontal rod positioned at one longitudinal end of the mounting frame 21, and a second mounting hole 25 is formed at both ends of the horizontal rod positioned at the other end.
Are formed. As shown in FIG. 1, a head board 26 is attached to the first attachment hole 24, and a foot board 27 is attached to the second attachment hole 25.

Horizontal rods 28 are laid along the width direction at both ends of the mounting frame 21 in the longitudinal direction. An L-shaped locking member 30 is provided on each of the opposite side surfaces of each of the horizontal rods 28. The locking members 30 are provided with rectangular frame-shaped supports 31 which are detachably attached at their four corners.

On both sides of the mounting frame 21 in the width direction,
As shown in FIGS. 12 (a) and 12 (b), the contact member 132 is attached over substantially the entire length in the longitudinal direction of the mounting frame 21 via the bracket 133a and the support column 133b. The contact member 132 is made of a strip-shaped member, and its upper surface is located slightly higher than the upper surface of the mounting frame 21.

When the mounting frame 21 descends, the bracket 133a comes into contact with the upper end of the caster 2 portion of the base frame 1 and the mounting frame 2 described above.
A contact plate 133d that regulates the descending position of No. 1 is provided.

Further, a plurality of side fence support members 134 are provided on both sides of the mounting frame 21 at predetermined intervals in the longitudinal direction. As shown in FIG. 13, the side fence support member 134 has a fixing member 135 having one end fixed to both outer surfaces of the mounting frame 21, and one end rotatably connected to the fixing member 135 by a support shaft 136. Has a movable member 137 and a supporting hole 138 for the side fence formed at the other end of the movable member 137. The leg portion 139 of the side fence shown by the chain line in FIG. It is designed to be inserted and supported.

The movable member 137 can be bent with respect to the fixed member 135 with the support shaft 136 as a fulcrum.
Therefore, when the side fence is not used, the movable member 1
By bending 37, it will not get in the way.

As shown in FIG. 3, a pair of receiving members 29 forming receiving portions are provided upright at both ends of the pair of horizontal rods 26 located at both ends of the support 31 in the longitudinal direction. Each receiving member 29 is formed with an arcuate concave portion 29a which is open on the upper surface and the inner side surface thereof.

A rotary frame 32 is arranged on the support 31. A pair of support rollers 33 are rotatably provided on both end surfaces of the rotary frame 32 in the longitudinal direction. Each support roller 33 is engaged with and supported by a recess 29a formed in the receiving member 29.

As shown in FIG. 6, a first auxiliary horizontal rod 26a and a pair of mounting rods 34 are provided on one end of the support 31 in the longitudinal direction. A second auxiliary horizontal rod 26b is installed between the middle portions of the attachment rods 34. Each rod member 26a, 34 is provided with a swing drive means 35 for swinging the rotary frame 32 in the left-right direction.

The swing drive means 35 is constructed as shown in FIGS. That is, as shown in FIG. 6, a bracket 36 is provided on the lower surface side of the one mounting rod 34, and one end of a drive source 37 is pivotally attached to the bracket 36. The drive source 37 includes a motor 38a and a screw shaft 38b that is rotationally driven by the operation of the motor 38a.
And a movable body 38c that moves along the screw shaft 38b.

A pair of L-shaped first links 39 constituting the link mechanism 40A shown in FIG. 5 is provided on the movable body 38c.
One end of is pivoted. The other ends of these first links 39 are fixed to a support shaft 41. This support shaft 41 is shown in FIG.
As shown in FIG. 7, the bracket 31 is rotatably mounted on a bracket 40 that is erected on the first and second auxiliary horizontal rods 26a and 26b of the support 31.

One end of the support shaft 41 projects from one of the brackets 40, and one end of a second rod 42 having a straight rod shape is fixed to the projecting end. An interlocking pin 43 is projectingly provided at the other end of the second link 42. The interlocking pin 43 is slidably and irremovably engaged with each of the long holes 44a, 45a formed with a predetermined length extending from one end side in the longitudinal direction of the third link 44 and the fourth link 45 to a middle portion. I am fit.

The above-mentioned third link 44 and fourth link 45
As shown in FIG. 5, one ends of the connecting pins 46 are pivotally attached to the other ends of the and. One end of each of the connecting links 47a and 47b and one side surface of a holding member 49 fixed to both ends of the steady rest link 48 are pivotally attached to each of the connecting pins 46, respectively. The other ends of the connecting links 47a and 47b are pivotally attached to the widthwise both ends of the rotary frame 32 at one end in the longitudinal direction.

The other ends of the connecting links 47a and 47b and the supporting rollers 33 provided at both ends of the rotating frame 32 are rotated by a single pin 51 as shown in FIG. 7 (only 47b is shown). It is attached to the frame 32.

On the other side surface of the holding member 49, the support 3
1. A substantially L-shaped steady rest groove 50 as an engaging portion, which is open to one end surface side and the lower end surface side located on the inner side in the width direction of 1
Are formed. The steady rest groove 5 of the pair of holding members 49
As shown in FIGS. 7 and 9, an engaging pin 52 as an engaging body is slidably engaged with 0. As shown in FIG. 9, the gap L ₁ between the pair of engagement pins 52 is slightly larger than the gap between the open ends of the pair of steady rest grooves 50, and is greater than the gap L ₂ between the ends of the steady rest groove 50. It is set small.

When the rotary frame 32 is in a horizontal state, the pair of engagement pins 52 are engaged with the steady rest groove 50 of each holding member 49. Thereby, the rotating frame 32
Is held without rattling in the left-right direction. That is, since the rotating frame 32 is swingably supported by the link mechanism 40, the link mechanism 4 is not supported.
When 0A is not driven, that is, when the rotary frame 32 is horizontal, rattling in the swinging direction is inevitable due to the play of each link.

However, when the rotating frame 32 is in the horizontal state, the pair of engaging pins 52 are held by the holding member 4.
Since it is engaged with the steady rest groove 50, the rotary frame 32 is prevented from swinging in the left-right direction.

In FIG. 8, a movable body 38c of the drive source 37
Is driven in the direction of arrow A, the first link 39 rotates in the direction of arrow B, and when the second link 42 interlocks with the rotation, it is provided at the other end of this second link 42. The interlocking pin 43 engages with the upper end of the long hole 45a of the fourth link 45 to rotate the link 45 in the standing direction shown by the arrow D in FIG. To slide.

When the fourth link 45 starts to rotate,
The rotation also slides the steady rest link 48 in the horizontal direction indicated by arrow C. As a result, the steadying groove 50 of the one holding member 49 located on the upper end side of the fourth ring 45 is disengaged from the one engaging pin 52, and the other engaging pin 52 is the steadying of the other holding member 49. It slides relatively to the terminal side of the groove 50.

As a result, the steady rest link 48 becomes rotatable with the other engagement pin 52 as a fulcrum, and therefore rotates in conjunction with the rotation of the fourth link 45.

When the steady rest link 48 is rotated, the rotary frame 32 is interlocked with this rotation via connecting links 47a and 47b as shown by a chain line in FIG. That is, the rotating frame 32 uses the support roller 33 on one end in the width direction supported by the recess 29 a of the receiving member 29 as a fulcrum to support the support 31.
The other end will rise above.

When the first link 39 is rotated in the direction opposite to the arrow B while the rotating frame 32 is tilted, and the movable body 38c of the drive source 37 is driven in the direction opposite to the arrow A,
The rotary frame 32 and the steady rest link 48 rotate in the fall direction. When the steady rest link 48 descends to a substantially horizontal state, the steady rest groove 5 of one holding member 49 is
One engaging pin 52 abuts on the open end lower surface 50a (shown in FIG. 9) of No. 0. When the first link 39 is further driven from that state, the interlocking pin 43 slides upward in the long hole 44a of the third link 44 and abuts against the end, and the third link 44 is indicated by arrow E in FIG. Press in the direction shown.

As a result, the steady rest link 48 slides in the horizontal direction opposite to the arrow C, so that the one engagement pin 52 is again engaged with the steady rest groove 50 of the one holding member 49. That is, the rotating frame 32 is held in a horizontal state where it hardly swings in the left-right direction.

From this state, the movable body 38c of the drive source 39 is
Is driven in the opposite direction, that is, in the opposite direction of arrow A,
Since the third link 44 rises in the upright direction, the rotating frame 32 can be swung with the other end in the width direction as a fulcrum.

A floor plate 61 is provided on the upper surfaces of the support 31 and the rotary frame 32. This floor board 61
As shown in FIG. 10A, a central floor plate 62 having a size substantially corresponding to the rotating frame 32, and the central floor plate 62.
And a pair of side floor plates 64 that are rotatably connected only to the upward direction by hinges 63 having a configuration to be described later.

A plurality of floor plates 62, 64, in this embodiment, first to fourth floor parts 62a-62d, 64 are provided.
a to 64d, and the floor portions of the floor plates 62 and 64 are sequentially attached to four mounting frames 65a to 65d.
65d, respectively. The floors 62a to 62d of the central floor plate 62 are attached to the mounting frames 65a to 65, respectively.
each floor 62a of the side floor plate 64 fixed to the d.
62d is mounted on the mounting frames 65a to 65d so that it can be rotated upward.

Of the floors, only the second floor 62b of the central floor plate 62 is detachably fixed to the rotary frame 32, and the other floors are placed on the rotary frame 32. It is only.

As shown in FIG. 10 (b), each floor 62a
62d and 64a to 64d are integrally formed by blow molding a synthetic resin between the central floor plate 62 and the pair of side floor plates 64. The central floor plate 62 and the side floor plates 64 are formed in a hollow shape having a predetermined thickness, and the upper end in the thickness direction of the central floor plate 62 and the upper end in the thickness direction of the side floor plates 64 are the hinges 6 described above.
3 are integrally connected by a thin portion forming 3.

Therefore, the side floor plate 64 is the central floor plate 62.
On the other hand, it can be rotated in the ascending direction shown by the chain line in the figure, and the downward rotation is restricted by the abutting end surfaces 62a, 64a of the floor plates 62, 64 which are opposed to each other. There is.

At the time of blow molding, each floor has a plurality of ventilation holes 66 penetrating in the thickness direction thereof. Thereby, the floor board 61 has air permeability in the thickness direction.

The floors 62a to 62d and 64a to 6 are provided.
4d is composed of two types of molded bodies having different length dimensions, a pair of floor portions located at both ends in the longitudinal direction are formed by arranging two molded bodies in parallel, and the two floor portions located between them are respectively formed. It is formed of one molded body having a different length.

When the rotary frame 32 is rotated by the swing drive means 35 and the central floor plate 62 of the floor plate 61 is interlocked with the rotation, one side floor plate 64 located on the ascending direction side is the central floor plate. The state of forming the same plane with respect to 62 is maintained, and the other side floor plate 64 located on the lower end side abuts the abutting member 132 provided on the side portion of the support 31 to prevent downward rotation. By doing so, it bends upward at a predetermined angle.

As a result, the user lying on the floor plate 61 is converted (raised) to the left or right by the central floor plate 62 that rotates in the left-right direction, and at the same time, the user bends to the upper surface side of the central floor plate 62. The side floor plate 64 that prevents the user from falling off the floor plate body 61 is prevented.

A roller (not shown) may be provided in the support member 31 in place of the contact member 132, and the roller may be brought into contact with the side floor plate 64 and bent.

As shown in FIG. 3, the floor plates 62, 6 of the floor plate 61 are provided in the middle of the rotary frame 32 in the longitudinal direction.
An undulating drive mechanism 71 for undulating the four floors 62a and 64a is provided. The undulating drive mechanism 71 includes a box 72 containing a power transmission mechanism (not shown), a pair of drive sources 73 respectively provided on one side surface and the other side surface of the box 72, and one side of the box 72 on both sides thereof. A first rotary shaft 74 is provided with both ends projecting from the surface and is driven to rotate by the one drive source 73, and the other end of the box 72 is provided on both ends of the box 72 so as to project from both sides. The second rotating shaft 75 is driven to rotate by the driving source 73. Each rotating shaft 74, 75
Both ends of each are rotatably supported by brackets 76 provided on both sides of the rotary frame 32.

One end of a first push-up arm 77 is fixed to both ends of the first rotary shaft 74, and a second rotary shaft 75 is provided.
One end of the second push-up arm 78 is fixed to both ends of the. A roller 79 is rotatably provided at the other end of each lifting arm 77, 78.

The roller 79 provided on the first lifting arm 77 is a mounting frame 65a to which the first floor portion 62a of the central floor plate 62 shown in FIG. 10A is mounted.
The roller 79 provided on the second lifting arm 78 is brought into contact with the mounting frame 65c of the third floor portion 62c of the central floor plate 62.

Each roller 79 is attached to each mounting frame 65a,
When the first rotating shaft 74 is rotationally driven in a state of being in contact with 65c and the first lifting arm 77 is rotated in the ascending direction, the first floor portion 62a of the central floor plate 62 ascends in the standing direction. The first floor 6 of the pair of side floor plates 64.
4a also works together.

When the second rotating shaft 75 is rotationally driven to rotate the second pushing arm 78 in the ascending direction,
The third floor portion 62c of the central floor plate 62 is rotated in the upright direction, and the fourth floor portion 62d is interlocked with the third floor portion 62c, so that these bend in a V shape. When the third and fourth floor portions 62c and 62d of the central floor plate 62 rotate, the third and fourth floor portions 64c and 64d of the pair of side floor plates 64 also interlock with it.

Next, the operation of the bed apparatus having the above structure will be described. Floor plate 6 provided on the upper surface side of the support 31
1 can perform three operations, that is, a vertical movement, a swinging movement (rolling) in the width direction, and an undulating movement of a part of the floor.

In order to perform the vertical movement, the vertical drive mechanism 13 is operated and the drive shaft 15 thereof is driven in the protruding direction. As a result, the levers 6 provided at both ends of the mounting frame 2 can be raised from the fallen state via the pair of rotating shafts 5, so that the mounting frame 2 can be rotated in accordance with the rotation of the levers 6.
You can raise 1.

On the upper surface side of the above-mentioned mounting frame 21, a rotating frame 32 on which the floor plate 61 is mounted is provided a support 31.
Since they are provided via the above, they will move together. In other words, the height of the floor plate 61 can be adjusted so that the patient lying on the floor plate 61 can be easily cared for or examined, and the height of the floor plate 61 can be adjusted by the patient. When getting on and off, it is easy to get on and off by making the floor plate 61 sufficiently low.

In order to rotate the floor plate 61 in the width direction, the drive source 37 of the swing drive means 35 is operated to drive the link mechanism 40A. In the link mechanism 40A, the third link 44 or the fourth link 45 is driven in the ascending direction according to the moving direction of the movable body 38c of the drive source 37.

When the fourth link 45 is driven in the ascending direction, as described above, the rotating frame 32 has the other end in the width direction with the roller 51 engaged with the recess 29a of the receiving member 29 on the one end side in the width direction as the fulcrum. Turn up.

When the rotating frame 32 rises on the other end with the one end in the width direction as a fulcrum, the floor plate 61 interlocks with the rotation. That is, in the floor plate body 61, as shown by a chain line in FIG. 8, the center floor plate 62 rises on the other end side with one end side in the width direction as a fulcrum, whereby the one side floor plate 64 connected to the one end side in the width direction is The lower surface thereof abuts the abutting member 132 provided on the mounting frame 21 and bends upward, and the other side floor plate 64 connected to the other end side is interlocked with the central floor plate 62 in the same plane.

When the drive source 37 is operated so that the third link 44 is driven in the ascending direction, the rotary frame 3 is moved.
2 can be rotated in the opposite direction.

Therefore, the movable body 38 by the drive source 37
If the driving direction of c is changed, for example, every predetermined time, the central floor plate 62 of the floor plate body 61 can be alternately rotated right and left by the rotating frame 32.

If the central floor plate 62 is alternately rotated right and left at predetermined intervals, the posture of the user lying on the floor plate 61 can be changed to the left and right. As a result, it is possible to prevent a user such as a sick person or an elderly person who has to lie on his back for a long period of time from causing humiliation, and one side in the width direction which is the base end side of the rotating center floor plate 62. The side floor plate 64 connected to the upper part bends upward, and the floor plate body 61 becomes substantially L-shaped, so that the user whose posture is changed leftward or rightward falls from the floor plate body 61. Is prevented.

In this way, when changing the posture of the user lying on the floor plate 61, the central floor plate 62 is driven in a direction in which the one end in the width direction is a fulcrum and the other end is raised.
Therefore, the center floor plate 62 can be rotated without displacing the one end side in the width direction, which is the lower end side of the rotating center floor plate 62, substantially below the supporting height of the floor plate body 61. Even if the supporting height of the above is sufficiently lowered, the central floor plate 62 can be rotated in the left-right direction to change the posture of the user.

When the center floor plate 62 is rotated in the left-right direction to change the body position of the user, if the support height of the floor plate body 61 is high, the user may feel uneasy. It is better to do in.

If the supporting height of the floor board 61 can be made sufficiently low, it becomes easy to get on and off the floor board 61. Therefore, especially when the user is a sick person or an elderly person, it is possible to get on and off without a caregiver. Sometimes it becomes.

The floor plate 61 is supported on the base 1 via the mounting frame 21 and the rotating frame 32. That is, the floor board 61 is provided on the base 1 via the two frames. Therefore, the supporting height when the floor board 61 is lowered can be made lower than in the conventional case where the floor board 61 is provided via three frames.

Since the two frames of the mounting frame 21 and the rotating frame 32 are provided on the base 1,
The weight can be reduced and the configuration can be simplified as compared with the conventional configuration in which three frames are provided.

When the floor plate 61 is in a horizontal state, the pair of engagement pins 52 provided on the support 31 engages with the steady rest groove 50 of the holding member 49 provided on the rotary frame 32 side, The rotation frame 32 is prevented from swinging in the left-right direction.

Therefore, when the rotary frame 32 is used in a horizontal state, it is possible to prevent the floor board 61 from rattling in the left-right direction and causing the user to feel uncomfortable. That is, even if the rotating frame 32 is swung by the link mechanism 40A, it is possible to prevent the rotating frame 32 from rattling.

Moreover, the engaging pin 52 and the steady rest groove 5 are
The engagement state with 0 is configured such that it is automatically engaged and disengaged by operating the link mechanism 40A, and no operation for that is required at all, which is easy to use and very convenient.

In order to raise the floor plate body 61 back up, the floor plate body 61 is made horizontal and the undulating drive mechanism 71 is operated. That is, the pair of drive sources 73 are operated to rotate the first rotary shaft 74 and the second rotary shaft 75, and the lifting arms 77 and 78 are interlocked with them.

When the first push-up arm 77 is driven in the ascending direction, as shown by the chain line in FIG.
The floor portion 62a of the pair rises and the first floor portions 64a of the pair of side floor plates 64 also interlock with it, so that the user can raise the upper body. When the second lifting arm 78 is driven in the ascending direction, the third floor portion 62c of the central floor plate 62 rotates in a direction in which the other end side is raised with one end connected to the second floor portion 62b as a fulcrum. Since it moves, the one end side of the fourth floor portion 62d connected to the other end also rises.

That is, the third floor 62c and the fourth floor 6
2d is bent in a substantially V shape, and the third and fourth floor portions 64c, 64d of the pair of side floor plates 64 are also interlocked with it. Therefore, the user whose upper body is raised has the third floor portions 62c and 64c and the fourth floor portion 62d that are bent in a V-shape.
Since the legs are held in a bent state by 64d, the posture in which the upper body is raised can be easily maintained.

Further, since the mounting frame 21, the support 31 and the floor plate 61 are detachably attached to the base 1, it is possible to easily carry them by carrying them out. It will be possible.

[0088]

As described above, according to the present invention, the mounting frame which is vertically driven by the vertical driving mechanism is provided on the base, and the rotary frame in which the floor plate is provided on the supporting portion of the mounting frame is swung. I tried to support it as much as possible.

Therefore, since the number of frames provided on the base can be two without impairing the function of the floor plate, the weight of the apparatus and the structure can be simplified. Moreover, it is possible to improve the usability by sufficiently lowering the height of the floor plate when it descends.

[Brief description of drawings]

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

FIG. 2 is a plan view in which a support is partially omitted.

FIG. 3 is an exploded perspective view of a base, a support and a rotating frame.

FIG. 4 is an explanatory view when raising a mounting frame.

FIG. 5 is an exploded perspective view of a link mechanism portion of the swing drive means.

FIG. 6 is a plan view of the swing drive means.

FIG. 7 is a side view of the swing drive means.

FIG. 8 is a front view of the swing drive means.

FIG. 9 is an enlarged front view of the steady rest link.

10 (a) is a plan view of the same as seen from the lower surface side of the floor plate, and FIG. 10 (b) is also a X- line in FIG. 10 (a).
An enlarged sectional view along the X-ray,

FIG. 11 is an exploded perspective view showing the outline of the overall configuration.

12A is a perspective view of an engaging portion between a roller of a vertical drive mechanism and a guide rail of a mounting frame, and FIG. 12B is a perspective view of FIG.
The perspective view which added the mounting frame to 2 (a).

FIG. 13 is a side view showing a partial cross section of a side fence supporting member provided on the mounting frame.

[Explanation of symbols]

1 ... Base 13 ... Vertical drive mechanism 21 ... Mounting frame 29 ... Receiving member (receiving portion) 32 ... Rotating frame 35 ... Swing drive means 37 ... Drive source 40A ... Link mechanism 61 ... Floor plate 62 ... Central floorboard 64 ... Side floor plate

Claims (2)

[Claims] 1. A base, a vertical drive mechanism provided on the base, a mounting frame provided on the base and vertically driven by the vertical drive mechanism, and having a receiving portion, and a receiver for the mounting frame. A rotating frame which is supported by one end portion and the other end portion in the width direction and which is swingable in a direction in which the one end portion and the other end portion are fulcrums and the end portions on the opposite side of the fulcrum are raised; And a drive source provided in the mounting frame for driving the link mechanism, and swinging the rotary frame in the width direction by driving the link mechanism by the drive source. A driving means, and a central floorboard and a pair of side floorboards that are rotatably connected only to the upper side on both sides in the width direction of the central floorboard, and are mounted on the rotary frame. Bed apparatus rotating frame is characterized in that anda bed plate structure bent upwards against the upper the placing frame person is one side floor located swung downward by being driven to swing. 2. When the rotary frame swings, side floor plates located below the floor plate in the swinging direction come into contact with both sides of the mounting frame in the width direction, and the side floor plates are moved upward. The bed apparatus according to claim 1, further comprising: an abutting member that is bent.