JP2923412B2 - Bed equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed apparatus suitable for a sick person.

[0002]

2. Description of the Related Art A patient who cannot roll over or wake himself must remain in a supine position for a long period of time. As described above, if the patient remains in the supine position for a long period of time, so-called bed sores will occur and the patient's pain will increase. Therefore, the patient's body position must be appropriately changed to prevent bedsores.

[0003] In order to be able to appropriately change the position of the patient, the present applicant has proposed a bed apparatus disclosed in Japanese Patent Publication No. 2-44225. The bed apparatus has a bed body, and a rotary support is provided on the bed body so as to be rotatable at the center in the width direction. The rotating support is provided with a floor plate. In this floor plate, side floor plates are connected to both sides of the central floor plate so as to be rotatable only upward.

When the rotary support is rotated in the left and right direction with the center in the width direction as a fulcrum, the rotary support descends, and a lateral floor plate at one end in the width direction hits a stopper and rotates downward. Is prevented, thereby bending upward. Thereby, the patient who is lying on the central floor plate changes his or her body position in accordance with the rotation of the central floor plate, and is prevented from falling from the floor plate body by the side floor plate bent upward. Therefore, bedsores can be prevented by alternately rotating the rotating support in the left-right direction to change the body position.

In the bed apparatus having the above-mentioned structure, when changing the body position of the patient, the rotating support is swung in the left-right direction with the center in the width direction as a fulcrum, so that the center floor of the floor plate is rotated. The rotation of the support is interlocked.

For this reason, the rotating support is rotated in such a manner that one of the right and left is raised and the other is lowered with the center in the width direction as a fulcrum, and the central floor plate is interlocked with the rotating motion. I have.

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

When the supporting height of the central floor plate is increased, it is difficult for a user to get on and off the upper surface of the center floor plate. In particular, when the user is a sick person, it may not be possible to get on and off by himself, which is very inconvenient. . Therefore, the lower the supporting height of the floor plate body provided on the bed body, the easier it is to use the patient when getting on and off.

[0009] In addition, when a supine patient receives a consultation or care, if the supine patient is too low, it may be difficult to perform a consultation or care. It is desirable to be able to change the height.

[0010]

As described above, in the conventional bed apparatus, when changing the position of the patient, one end in the width direction of the central floor plate forming the floor plate is raised and the other end is lowered. Because of the pivotal structure, it is necessary to secure a space on the lower surface side of the central floor plate so that the other end in the width direction of the central floor plate can be lowered. For this reason, the supporting height of the floor plate body is increased, and the patient cannot get on and off by himself, which makes it difficult to use.

In addition, when examining or caring for a patient who is lying on the back, there is a case where it is desired to change the supporting height of the patient. However, in a conventional bed apparatus capable of changing the position of a patient, a bed apparatus capable of changing the supporting height of the patient has not been developed.

[0012] A first object of the present invention is to provide a floor supporting member which is sufficiently low so that a patient can easily get on and off the vehicle.
It is an object of the present invention to provide a bed device which can be swung right and left so that a patient's body position can be changed.

It is a second object of the present invention to not only make the supporting height of the floor plate sufficiently low so that it can be swung in the left-right direction, but also to adjust the supporting height of the floor plate. The present invention is to provide a bed device that can perform the above.

[0014]

SUMMARY OF THE INVENTION claims 1 invention, the support <br/> frame - beam and the width direction end portion to the support frame and the other end
And the end opposite to the fulcrum rises
A rotating frame that is pivotally supported in the direction that, the middle bed plate assembly and respectively upward on both sides of the middle bed plate assembly only has a pivotally linked pair of side floor, each floorboard
A plurality of floors rotatably connected to each other,
One floor located in the middle of the central floorboard in the longitudinal direction is
A floor plate removably connected to the rotating frame and placed on the rotating frame; and the central floor plate provided on the supporting frame is connected to one end of the center frame at one end in the width direction. A first left and right link mechanism for rotating one of the side floor boards upward together with the other side floor board provided on the other end in the width direction while bending upward, and the center floor board provided on the support frame. A second left / right link mechanism for rotating the other side floor plate connected to the other end side with the other end side in the width direction upward while bending the other side floor plate connected to the other end side together with the one side floor plate provided on one end side in the width direction. And the above support frame
For raising and lowering the floor of each floorboard of the floorboard body
And a protruding drive mechanism . Claim 2
The invention according to claim 1, wherein the support frame
The vertical link mechanism that drives this support frame up and down
It is characterized in that it is provided on the base through the intermediary .

A second means of the present invention comprises a base, a mounting frame provided on the base so as to be vertically movable by an up-down link mechanism, a central floor plate and both sides of the central floor plate. It consists of a pair of side floor plates connected rotatably only in the upward direction, and a floor plate mounted on the mounting frame and a central floor plate provided on the mounting frame in a width direction. A first left and right link mechanism that pivots upward together with the other side floor plate provided on the other end in the width direction while bending one side floor plate connected to the one end side with the one end side as a fulcrum, One side provided at one end in the width direction while bending the other side floor plate connected to the other end side with the other end side in the width direction using the center floor plate provided on the mounting frame as the fulcrum. A second left and right link mechanism for rotating and rising together with the floor plate; Characterized by comprising.

[0016]

According to the first aspect of the present invention, the floor plate is configured to be rotated in the ascending direction by the first link mechanism or the second link mechanism with one end or the other end in the width direction as a fulcrum. In order to rotate the body, the body can be rotated at a low position without securing a space below the body. In addition, the floor plate is directly driven by the link mechanism.
To be driven through the rotating frame,
By not connecting the first and second link mechanisms, rotation
It is possible to adopt a configuration that is provided detachably on the frame.
Therefore, disassembly of the floor plate with respect to the support frame
And easy to assemble.
Each board is connected to multiple floors so that they can rotate freely and bend
Floor disassembled from rotating frame, even with flexible structure
A pair of side floor panels are joined to the upper surface of the central floor panel of the panel.
When folded, each floor of the folded floorboard may be bent.
Therefore, handling of the floor plate is easy. Contract
According to the invention of claim 2, the floor plate can be rotated at a low position, and the support height of the floor plate can be adjusted.

[0017]

An embodiment of the present invention will be described below with reference to the drawings. The bed apparatus shown in FIG. The base 1 is formed in a rectangular frame shape, and casters 2 with stoppers are provided at four corners on the lower surface. As shown in FIGS. 2 and 4, a pair of brackets 3 are provided at both ends of the base 1 in the longitudinal direction at corresponding positions in the width direction. A pair of rotating shafts 5 constituting an up-down link mechanism 4 are rotatably mounted on each pair of brackets 3. One end of a pair of levers 6 is fixed to both ends of each rotating shaft 5.
Both ends of the support shaft 7 are fixed to the other end of each pair of levers 6. Rollers 8 are rotatably provided at both ends of the pair of support shafts 7, respectively.

One end of a first arm 9 is fixed to the middle of one rotating shaft 5, and the second arm 9 is fixed 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 an interlocking rod 12 are pivotally connected to the other end of the first arm 9 and one end of the second arm 11 projecting downward. A vertical drive mechanism 13 is provided on the upper surface of the intermediate portion of the
Is provided. The vertical drive mechanism 13 includes a drive source 14 swingably attached to the interlocking rod 12 and a drive shaft 15 driven forward and backward by the drive source 14.
The tip of the drive shaft 15 is pivotally connected to the other end of the second arm 11.

When the vertical drive mechanism 13 operates to drive the drive shaft 15 in the projecting direction, the second arm 11 rotates counterclockwise as shown by the arrow a in FIG. One rotation shaft 5 is interlocked with the rotation. The second arm 11
Is rotated, the interlocking rod 12 slides in the direction indicated by the arrow b, and the first arm 9 rotates counterclockwise as indicated by the arrow c.

When the first arm 9 and the second arm 11 rotate in the same counterclockwise direction, each pair of levers 6 having one end connected to each arm is in a state of falling down. And rises in a counterclockwise direction indicated by an arrow d.

Rollers 8 provided at both ends of a support shaft 7 connected to each lever 6 have a mounting frame 2 having a rectangular frame shape.
1. Guide rails 2 having a U-shaped cross section provided on the inner surfaces on both sides of 1.
2 so that it can roll freely. Therefore, when the pair of levers 6 rotate in the upright direction, the rotation allows the mounting frame 21 to be raised via the rollers 8. FIG. 6 shows a state in which the mounting frame 21 has been raised on the base 1.

In order to prevent the lifted mounting frame 21 from freely moving along the longitudinal direction by engaging the guide rail 22 and the roller 8, the mounting frame described above is used. One end and the other end of the connection link 23 are rotatably connected to the arm 21 and the lever 6.
By detaching the base 1, the mounting frame 21 can be disassembled from the base 1.

On the upper surface of the mounting frame 21, a supporting frame 25 having a rectangular frame shape larger than the mounting frame 21 is removably mounted and fixed. As shown in FIGS. 4 and 5, the lower end of a connecting member 27 having a U-shaped cross section is connected to both ends of four horizontal rods 26 extending in the width direction. A vertical rod 28 is attached along the longitudinal direction.

A pair of first brackets 29 are provided upright at both ends of a pair of horizontal rods 26 located at both ends in the longitudinal direction of the support frame 25, respectively. Supporting frame 2
5, a pair of first brackets 29 corresponding to each other in the longitudinal direction are provided with stopper shafts 31, respectively, as shown in FIG. A rotary frame 32 is provided between the pair of stopper shafts 31. A pair of supporting rollers 33 are rotatably provided on both longitudinal end surfaces of the rotating frame 32, respectively. Each of the support rollers 33 is engaged with an engagement concave portion 34a formed at the upper end of a support bracket 34 which is provided on the upper surface of the pair of horizontal rods 26, two at a time.

A pair of horizontal rods 26 located in the middle of the support frame 25 in the longitudinal direction are provided with a first left and right link mechanism 35a and a second left and right link mechanism 35b. As shown in FIG. 2, FIG. 3 (b) and FIG. 5, each of the left and right link mechanisms 35a, 35b has a first and a second base shaft 36a, respectively.
36b. Each of the base shafts 36a and 36b is rotatably mounted in parallel to and rotatably on a support plate 37 erected in the middle of the pair of horizontal rods 26, respectively. Each base shaft 36a, 36b
, One end of a first link 38 is fixed to the middle part, and one end of a pair of second links 39 is fixed to both ends.

At both ends of the pair of horizontal rods 26, mounting rods 41 are provided, respectively. A first left-right driving mechanism 42 is rotatably mounted on one of the mounting rods 41 via a bracket 43. The second right and left drive mechanism 4
4 is rotatably mounted via a bracket 45. The first and second left and right driving mechanisms 42 and 44 include a driving source 46.
And a drive shaft 47 driven forward and backward by the drive source 46
And each drive shaft 47 is connected to each of the base shafts 36a, 3
6b is pivotally connected to the other end of the first link 38, one end of which is fixed to the middle of the link 6b.

A roller 51 is rotatably provided at the other end of each of the pair of second links 39 having one end fixed to both ends of each of the base shafts 36a and 36b. on the other hand,
A pair of horizontal rods 52 are provided at predetermined intervals in the longitudinal direction of the rotating frame 32 along the width direction. Guides 53 each having a U-shaped cross section are provided at both ends of the inner surface of each horizontal rod 52 facing each other. A roller 51 provided at the other end of the second link 39 is engaged with each guide 53.

These rollers 51 are mounted on the rotating frame 3.
The pair of support rollers 33 provided on both end surfaces of the pair 2 are provided so that their rotation axes coincide with each other. When the first left-right drive mechanism 42 is operated and the drive shaft 47 is driven in the projecting direction, the first base shaft 36a is indicated by an arrow e in FIG. It rotates counterclockwise, and a pair of second links 39 provided at both ends thereof rotate counterclockwise in conjunction with each other. Thereby, the rotating frame 3
In 2, one end in the width direction on the side of the first base shaft 36 a is rotated upward with the other end in the width direction on the side of the second base shaft 36 b as a fulcrum.
That is, the rotating frame 32 is pushed up at one end in the width direction by the other pair of rollers 51 with one pair of rollers 51 at the other end in the width direction as a fulcrum. This state is shown by a chain line in FIG.

On the other hand, when the drive shaft 47 of the second left / right drive mechanism 44 is driven in the projecting direction, the second base shaft 36b rotates clockwise as indicated by an arrow f in FIG. The rotating frame 32 is moved in the opposite direction to the above, that is, the first base shaft 3.
The one end in the width direction on the 6a side is pivoted in a direction in which the other end rises with the one end as a fulcrum.

A floor plate 61 is provided on the upper surface side of the support frame 25. As shown in FIG. 5, the floor plate 61 is connected to a center floor plate 62 having a size substantially corresponding to the rotary frame 32, and to both sides of the center floor plate 62 by hinges 63 so as to be rotatable only in the ascending direction. And a pair of side floor plates 64. Each of the floor plates 62 and 64 has a plurality of, in this embodiment, first to fourth, four floor portions 62a.
~ 62d, 64a ~ 64d, each floor plate 62, 6
The floor portion 4 is rotatably connected to 62a and 64a. Further, only the second floor portion 62b of the central floor plate 62 is detachably fixed to the rotating frame 32.

The hinge 63 is formed by bending a band-like plate to form a loop having a curved portion 64a at one end and a vertical portion 64b at the other end as shown in FIG. 7, and one end of the vertical portion 64b. Is composed of a pair of metal fittings 65 rotatably connected to each other by a short pipe 64c provided on the shaft 64d. The curved portion 64a of one metal fitting 65 is attached and fixed to a pipe at the end in the width direction of the central floor plate 62, and the curved portion 64a of the other metal fitting 65 is fixed.
Are connected and fixed to a pipe at one end in the width direction of one side floor plate 64.

When the side floor plate 64 is substantially horizontal with respect to the center floor plate 62, the hinge 63 is joined to the vertical portions 64 b of the pair of metal fittings 64, whereby the side floor plate 64 is connected to the center floor plate 62. Is prevented from pivoting further downward. That is, the side floor plate 64 is configured to freely rotate upward with respect to the center floor plate 62 above the horizontal state, but does not rotate downward below the horizontal state.

The pair of side floor plates 64 can be folded from the state shown by the solid line in FIG. 8 to the upper surface side of the center floor plate 62 as shown by the chain line. In the folded state, there is a difference in dimension H between the position (height) of the fulcrum to which each floor of the central floor plate 62 is connected and the fulcrum to which each floor of the side floor plate 64 is connected.

Therefore, even if the floor portion of each floor plate 62, 64 is divided into corresponding lengths, the folded floor plate body 6
Since 1 does not bend from the position of the second hinge 65, it is convenient for carrying around.

When the rotary frame 32 is rotated by the first link mechanism 25a or the second link mechanism 25b, and the center floor plate 62 of the floor plate body 61 is linked with the rotation, the rotary frame 32 is located on the ascending side. One side floor plate 64 is kept flush with the center floor plate 62, and the other side floor plate 64 located at the lower end is prevented from rotating downward by the stopper shaft 31. The central floor plate 62 is bent at a predetermined angle toward the upper surface side. As a result, the user lying on the floor plate 61 is turned (raised) left and right by the central floor 62 that rotates in the left-right direction, and at the same time, the side portions bent toward the upper surface of the central floor 62. The floor plate 64 prevents the user from falling off the floor plate body 61.

As shown in FIG. 4, the floor portions 61a, 64a of the floor plates 62, 64 of the floor plate 61 are raised and lowered on a pair of horizontal rods 26 provided in the longitudinal direction of the support frame 25. An up-and-down driving mechanism 71 is provided. The raising / lowering drive mechanism 71 includes a box 72 containing a power transmission mechanism (not shown), and a pair of drive sources 73 provided on one side and the other side of the box 72, respectively.
A first rotating shaft 74 provided at one end of the box 72 so as to protrude both ends from both sides thereof and driven to rotate by the one driving source 73; And a second rotating shaft 75 that is provided so as to protrude and is driven to rotate by the other drive source 73. Both ends of the rotating shafts 74 and 75 are rotatably supported by brackets 76 provided on the horizontal rod 26, respectively.

One end of a first lifting arm 77 is fixed to both ends of the first rotating shaft 74, and a second rotating shaft 75
One end of a second lifting arm 78 is fixed to both ends of the arm. Rollers 79 are rotatably provided at the other ends of the push-up arms 77 and 78, respectively. Rollers 79 provided on the first lifting arm 77 are provided with a pair of first rolling contact presses provided along the longitudinal direction of the first floor portion 62a of the central floor plate 62 shown in FIG. And a roller 79 provided on the second push-up arm 78 is provided with a pair of second second members provided along the longitudinal direction of the third floor portion 62c of the central floor plate 62. It comes into contact with the transfer plate 82.

Each roller 79 is connected to each of the rolling plates 81, 82.
When the first rotary shaft 74 is driven to rotate in the state where the first push-up arm 77 is rotated in the ascending direction,
The first floor portion 62a of the central floor plate 62 is raised in the upright direction, and the first floor portions 64a of the pair of side floor plates 64 also move in conjunction therewith.

When the second rotary shaft 75 is driven to rotate and the second push-up arm 78 is rotated in the ascending direction,
The third floor portion 62c of the central floor plate 62 is turned in the upright direction, and the fourth floor portion 62d is interlocked with the third floor portion 62c. When the third and fourth floor portions d of the center floor plate 62 rotate, the third and fourth floor portions 64c and 64d of the pair of side floor plates 64 also move together.

Next, the operation of the bed apparatus having the above configuration will be described. The floor plate 61 provided on the upper surface side of the support frame 25 moves up and down and rotates in the width direction (rolling).
And three operations of raising and lowering the floor.

In order to perform the vertical movement, the vertical drive mechanism 13 is operated to drive the drive shaft 15 in the projecting direction. As a result, the levers 6 provided at both ends thereof can be raised from the laid 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.
1 can be raised.

Since the supporting frame 25 on which the floor plate 61 is placed is provided on the upper surface side of the placing frame 25, these rise together. That is, when a patient lying on the floor plate 61 is to be cared for or consulted, the height of the floor plate 61 can be adjusted so that the patient can easily do this. When getting on and off the vehicle, the floor board 61 is sufficiently lowered to facilitate getting on and off.

In order to rotate the floor plate 61 in the width direction, the first left / right drive mechanism 42 or the second left / right drive mechanism 44 is operated to activate the first left / right link mechanism 35a or the second left / right link mechanism. The mechanism 35b is driven. When the first left and right link mechanism 35a is driven by the first left and right drive mechanism 42 and the first base shaft 36a is rotated counterclockwise as indicated by an arrow e in FIG. 3B, the rotating frame 32 is rotated. The other end in the width direction pivots upward with the roller 51 engaged with the guide 53 on one end side in the width direction on the side of the second base shaft 36b.

When the other end of the rotating frame 32 is raised with the one end in the width direction as a fulcrum, the floor plate 61 is interlocked with the rotation. That is, as shown by the chain line in FIGS. 3A and 3B, the floor plate 61 has its central floor 62 raised at one end in the width direction at the other end, thereby being connected to one end in the width direction. One side floor plate 64 abuts against the stopper shaft 31 and bends upward, and the other side floor plate 6 connected to the other end side.
4 cooperates with the central floor plate 62 in the same plane.

When the second left / right link mechanism 35b is driven by the second left / right drive mechanism 44 and the second base shaft 36b is rotated in the direction of arrow f, the rotating frame 32 is moved in the direction opposite to the previous direction. Can be rotated.

Therefore, if the first left and right driving mechanism 42 and the second left and right driving mechanism 44 are alternately driven, the center frame 62 of the floor panel 61 can be rotated left and right by the rotating frame 32. it can.

If the center floor plate 62 is rotated left and right at predetermined time intervals, the position of the user lying on the floor plate body 61 can be changed to left and right. Thereby, it is possible to prevent a sick or elderly person who needs to lie for a long period of time from incurring a floor collapse, and one end side in the width direction which is the base end side of the rotating central floor plate 62. Is bent upward, and the floor plate 61 becomes substantially L-shaped, so that the user whose posture has been changed leftward or rightward falls from the floor plate 61. Is prevented.

As described above, when changing the position of the user who is lying on the floor plate 61, the center floor plate 62 is driven in a direction in which the other end rises with one end in the width direction as a fulcrum.
Therefore, the one end in the width direction, which is the lower end side of the rotating central floor plate 62, is not displaced downward without the central floor plate 6 being displaced downward.
2 can be rotated, so that even if the supporting height of the floor plate 61 is sufficiently reduced, the center floor plate 62 can be rotated left and right to change the user's body position.

When the user changes the body position by rotating the central floor 62 in the left-right direction, if the support height of the floor plate 61 is high, the user may feel uneasy. It is better to do it in

If the supporting height of the floor plate 61 can be made sufficiently low, it is easy to get on and off the floor plate 61, so that the user can get on and off without a caregiver, especially for a sick or elderly person. Sometimes it becomes.

In order to raise the floor plate 61, the floor plate 61 is made horizontal and the up / down drive mechanism 71 is operated. That is, the pair of driving sources 73 is operated to rotate the first rotating shaft 74 and the second rotating shaft 75, and the lifting arms 77 and 78 are linked with the first rotating shaft 74 and the second rotating shaft 75.

When the first push-up arm 77 is driven in the upward direction, the first push-up arm 77 is moved upward as shown by a chain line in FIG.
Is raised, and the first floor portions 64a of the pair of side floor plates 64 are also interlocked with it, so that the user can raise the upper body. When the second push-up arm 78 is driven in the ascending direction, the second floor portion 62c of the central floor plate 62 is moved to the second position.
The other end is rotated in a direction in which the other end rises with one end connected to the floor portion 62b as a fulcrum.
The one end side of the floor portion 62d also rises. That is, the third floor portion 62c and the fourth floor portion 62d are bent in a substantially U-shape,
Third and fourth floor portions 64c of the pair of side floor plates 64,
64d also works together. Therefore, the user whose upper body is raised can be bent in the shape of a cross-shaped third floor portion 62c, 64.
c, and the fourth floor portions 62d, 64d hold the legs in a bent state, so that the posture in which the upper body is raised can be easily maintained.

The mounting frame 2 is placed on the base.
1. Since the support frame 25 and the floor plate 61 are detachably provided, by removing them, it is possible to easily carry such as transport.

The present invention is not limited to the above embodiment, but can be variously modified. For example, in the above-described embodiment, the mounting frame is vertically movable with respect to the base by an up-down link mechanism, and the mounting frame is connected to a supporting frame having a floor plate attached thereto. Thus, the floor plate can be moved up and down, but the base has a support frame.
The floor plate can be moved up and down directly by a vertical link mechanism, or the floor plate can be moved up and down by directly providing a floor plate on the mounting frame.

Further, in order to rotate the center floor plate of the floor plate body to the left and right, a rotating frame is rotatably provided on the support frame, and is rotated by the first and second left and right link mechanisms. However, the guide 5 in which the roller 51 is engaged with the lower surface of the central floor plate
3 may be provided, and the center floor plate may be directly rotated left and right by the first and second left and right link mechanisms. That is,
Even without a rotating frame, the central floor can be rotated left and right. In this case, the vertical mechanism may be configured to directly move the support frame up or down, or may be configured such that there is no support frame and the mounting frame is vertically movable on the base. Any of these may be used.

[0056]

As described above, according to the first aspect of the present invention, the floor plate is raised by the first link mechanism or the second link mechanism with one end or the other end in the width direction as a fulcrum. Since it is configured to rotate in the direction, the floor plate body can be rotated at a low position without securing a space below the floor plate body. In addition, since the floor plate is not directly driven by the link mechanism but is driven via a rotary frame, the floor plate can be detachably provided on the rotary frame. Can be easily disassembled and assembled, and even if each floorboard of the floorboard body has a structure in which a plurality of floors are rotatably connected to each other and can be bent, the floorboard body disassembled from the rotating frame can be bent. If the pair of side floor panels are folded so as to be joined to the upper surface of the central floor panel, each floor section of the folded floor panel does not bend, so that the floor panel can be easily handled.

[0057] Therefore, not only can the position of the user lying on the floor plate be changed to cause the user to turn over,
Since the user's body position can be changed without displacing the center floor plate or the side floor plate almost downward, the supporting height of the floor plate can be made sufficiently low so that the user can easily get on and off. .

According to the second aspect of the present invention, the supporting height of the floor plate for changing the user's body position can be made sufficiently low so that the user can easily get on and off the vehicle. The supporting height of the floor plate can be changed.

Therefore, usually, the height of the floor plate can be set sufficiently low so that the user can easily get on and off, and a user who is lying on the floor plate can receive nursing care or consultation. If you are to receive such a treatment,
The support height of the floorboard can be adjusted.

[Brief description of the drawings]

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

FIG. 2 is a plan view partially omitted.

FIG. 3A is a side view along the line AA in FIG. 2;
(B) is sectional drawing which follows the BB line | wire similarly.

FIG. 4 is an exploded perspective view of a supporting frame showing only a mounting frame and a back raising mechanism.

FIG. 5 is a supporting frame showing only the left and right link mechanisms.
FIG.

FIG. 6 is an exploded perspective view showing an outline of the entire configuration.

FIG. 7 is a front view of a hinge mechanism that connects a center floor panel and side floor panels.

FIG. 8 is a front view of the same floor plate in a folded state.

[Description of References] 1 ... Base, 4 ... Up and down link mechanism, 21 ... Placement frame (frame), 35a ... First left and right link mechanism, 35b
... Second left / right link mechanism, 61: floor plate, 62: center floor plate, 64: side floor plate.

Claims (2)

(57) [Claims] 1. A support frame, and one end and the other end in the width direction are respectively supported on the support frame.
Swing in the direction in which the end opposite to the fulcrum ascends as a point
A rotating frame freely supported, a central floor plate and a pair of side floor plates connected to both sides of the central floor plate so as to be rotatable only upward , respectively.
The floorboard consists of a plurality of floors that are rotatably connected to each other.
One floor located in the middle of the central floorboard in the longitudinal direction.
A floor plate mounted on the rotating frame by detachably connecting the portion to the rotating frame ; and a central floor plate provided on the supporting frame and connected to one end of the central floor plate at one end in the width direction. A first left and right link mechanism for rotating one of the side floor boards upward together with the other side floor board provided at the other end in the width direction while bending upward, and the width of the central floor board provided on the support frame is increased. A second left and right link mechanism for rotating the other side floor plate, which is connected to the other end side, with the other end side in the width direction upward while rotating upward together with one side floor plate provided on one end side in the width direction, A floor portion of each floorboard of the floorboard body provided on the support frame
And an up-and-down drive mechanism for driving up and down the bed. 2. The support frame, comprising:
Provided on the base via a vertical link mechanism that drives the
The bed apparatus according to claim 1 , wherein the bed apparatus is provided.