JP4146682B2 - Wake-up bed equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wake-up bed apparatus that can hold a user's leg in a raised state.
[0002]
[Prior art]
In a bed apparatus for a sick person, a so-called wake-up bed apparatus is used in order to assist a patient whose physical strength has decreased to raise his / her upper body when eating. The wake-up type bed apparatus divides a floor plate body provided on the upper surface of the bed frame into a plurality of floor portions with respect to the longitudinal direction of the bed frame, and is a floor portion corresponding to the upper half of the user. The back floor is configured to be driven up and down by a drive mechanism.
[0003]
When the user raises his / her upper body with the back-up floor, the buttocks may be easily displaced forward. Therefore, at the time of raising the back, not only the back-raised floor but also the leg-raised floor located corresponding to the user's leg is simultaneously raised by the drive mechanism. As a result, the user's buttocks can be prevented from moving forward when the back is raised.
[0004]
The floor plate body has a fixed floor portion fixed to the bed frame. The leg-raised floor portion includes a first leg-raised floor portion whose one end is pivotally attached to the fixed floor portion, and a second leg-raised floor portion whose one end is pivotally attached to the first leg-raised floor portion. The drive mechanism drives the first leg raised floor in the direction in which the other end rises. One end of the second leg-raised floor rises in conjunction with the first leg-raised floor. The other end of the second leg-raised floor is connected to a middle portion of a holding member, which is a U-shaped bent wire, in a rotatable manner. Both ends of the holding member are pivotally supported by the bed frame.
[0005]
Accordingly, when one end of the second leg-raised floor is raised in conjunction with the first leg-raised floor, the other end of the second leg-raised floor is held at a predetermined height by the holding member. It is like that.
[0006]
There is a wake-up type bed apparatus in which the leg-raised floor can be selectively interlocked with the movement of the back-raised floor. That is, there is a configuration in which the leg raising floor portion can be interlocked with the movement of the back raising floor portion as required, or can be raised and lowered independently regardless of the movement of the back raising floor portion.
[0007]
Recently, it has been considered to use a wake-up bed apparatus configured to selectively raise and lower a leg-raised floor for a specific patient. For example, it has been studied to use it when it is better to hold the leg higher than the head in the supine state, such as a patient with a broken leg.
[0008]
[Problems to be solved by the invention]
As described above, when the leg-raised floor is composed of the first leg-raised floor and the second leg-raised floor, the portion below the knee of the user's leg is formed by the second leg. Will be supported.
[0009]
In the conventional wake-up bed apparatus, the second leg raising floor is held at a fixed angle by the holding member, and is normally held almost horizontally. It was not a configuration that could be changed.
[0010]
Therefore, even if the user can hold the part below the knee of the leg almost horizontally by the second leg floor part, the user can raise it higher than the horizontal state or hold it lower. In the case of a user's preference or a fractured patient, such as holding, the holding state cannot be changed according to the medical condition, which is very inconvenient.
[0011]
It is an object of the present invention to provide a wake-up type bed apparatus that can be held by changing the holding state of the leg, that is, the bending angle of the leg, according to the use situation of the user.
[0012]
[Means for Solving the Problems]
  The invention of claim 1 includes a bed frame,
  A fixed floor portion fixed to the bed frame, and a floor plate body having a first leg-raised floor portion and a second leg-raised floor portion connected to one end of the fixed floor portion so as to be sequentially rotatable;
  It has a leg raising arm that is rotationally driven in the direction in which the distal end rises with the base end as a fulcrum, and when the leg raising arm is rotationally driven in the upward direction,Driving means for pressing the lower surface of the first leg raised floor portion and driving the other end ascending with one end connected to the fixed floor portion as a fulcrum;
  When the other end of the first leg raised floor is driven in the ascending direction, the second leg raised floor interlocked with the first leg raised floor is held at the raised position, Comprising a holding mechanism capable of changing the holding angle of the two leg-raised floors;
In the holding mechanism, a plurality of holding grooves are provided at predetermined positions in the longitudinal direction, and the longitudinal direction thereof is aligned with the longitudinal direction of the bed frame at a position corresponding to the second leg raised floor portion of the bed frame. A holding member provided, and an engaging member that is pivotally attached at one end to the free end of the second leg raised floor and detachably engages with the holding groove at the other end. A support rod for holding the second leg raised floor portion at a predetermined angle by engaging with one of the holding grooves;
When the engaging member provided at the other end of the support rod is engaged with the holding member and the first leg-raised floor is driven in the upward direction, the second leg-raised floor is A first holding groove for holding the free end inclined downward relative to the horizontal state, and a second holding groove for holding the second leg raised floor portion substantially horizontally, are provided.
In the first holding groove, when the second leg-raised floor portion is laid down substantially horizontally together with the support rod in a state where the engaging member is engaged with the first holding groove, the first holding groove When the engaging member is slid in a direction away from the first holding groove and the second leg raised floor portion is raised from the state where the second leg raised floor portion is almost horizontally lying down in conjunction with the first leg raised floor portion. An inclined surface is formed to return the engaging member released from the first holding groove to the first holding groove.A wake-up bed apparatus characterized by that.
[0013]
According to a second aspect of the present invention, the first leg raised floor portion and the second leg raised floor portion are divided into a left and right pair located at one end and the other end in the width direction of the fixed floor portion. 2. The wake-up bed apparatus according to claim 1, wherein each of the pair of left and right second leg raising floor portions is held by the holding mechanism.
[0016]
According to the present invention, since the holding angle of the second leg raising floor portion by the holding mechanism can be changed, the leg portion can be held at a bending angle corresponding to the use situation of the user.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings.
[0018]
FIG. 1 is a perspective view of a wake-up bed apparatus according to an embodiment of the present invention. The wake-up bed apparatus includes a base frame 1 configured to be movable by casters 2 provided at four corners. Yes. Connecting members 3 are provided at the four corners of the base frame 1, and one end of a vertical drive arm 4 is pivotally attached to the upper end of each connecting member 3.
[0019]
As shown in FIG. 3, the middle part of the pair of vertical drive arms 4 located at one end in the longitudinal direction of the base frame 1 is connected by a first connecting shaft 5a, and the pair of vertical drive arms 4 located at the other end. The other end of each is connected by a second connecting shaft 5b. The other end of each pair of vertical drive arms 4 is connected to connecting pieces 7 (see FIGS. 2A and 2B) that are suspended from both inner surfaces in the width direction of one end and the other end of the bed frame 6 in the longitudinal direction. It is pivotally attached to (shown).
[0020]
A vertical drive device 11 is pivotally attached to the second connecting shaft 5b. The vertical drive device 11 has a drive source 12 and a drive shaft 13 that is driven forward and backward in the axial direction by the drive source 12.
[0021]
One end portion and the other end portion of the interlocking rod 14 are pivotally attached to each other through the bracket 15 in the axially intermediate portion between the first connecting shaft 5a and the second connecting shaft 5b. The front end of the drive shaft 13 is pivotally attached to the middle portion of the interlocking rod 14.
[0022]
Therefore, when the drive source 12 of the vertical drive device 11 is operated and the drive shaft 13 is driven in the axial direction, the interlocking rod 14 is interlocked with this movement. As a result, the vertical drive arm 4 rotates in the direction in which the other end rises with the one end pivotally attached to the connection member 3 as a fulcrum via the first and second connection shafts 5a, 5b. The bed frame 6 pivotally attached to the other end is driven in the upward direction.
[0023]
The bed frame 6 is provided with a floor plate 21. As shown in FIGS. 4A and 4B, the floor plate 21 is divided into a plurality of floor portions. That is, the floor plate 21 has a fixed floor portion 22 that is fixed to the bed frame 6 at the center in the longitudinal direction of the bed frame 6. One end of the fixed floor portion 22 is connected to a waist raising floor portion 23 and a back raising floor portion 24 so as to be sequentially rotatable.
[0024]
The other end of the fixed floor portion 22 is connected to one end portion in the width direction of the fixed floor portion 22 so that the first left leg raised floor portion 25 and the second left leg raised floor portion 26 are sequentially rotatable. ing. A first right leg raised floor 27 and a second right leg raised floor 28 are connected to the other end in the width direction of the fixed floor 22 so as to be sequentially rotatable.
[0025]
The floor portions other than the fixed floor portion 22 of the floor plate body 21 are driven up and down by a floor portion drive mechanism 31. The floor drive mechanism 31 has a main body 32 as shown in FIG. The main body 32 has an elongated box shape along the longitudinal direction of the bed frame 6, and a first drive source 33 is provided on one side of the main body 32 and a second drive source is provided on the other side. 34 is provided.
[0026]
The main body 32 is provided with a first drive shaft 35 at one end in the longitudinal direction and a second drive shaft 36 at the other end. Both end portions of the first drive shaft 35 and the second drive shaft 36 can be rotated by bearings 37a (shown in FIG. 6) to support portions 37 provided on both inner surfaces in the width direction of the bed frame 6, respectively. It is supported by. When the first drive source 33 is operated, the first drive shaft 35 is rotationally driven, and when the second drive source 34 is operated, the second drive shaft is rotationally driven. .
[0027]
A pair of back raising arms 38 are respectively provided at both ends of the first drive shaft 35 with the base ends fixed. A pair of back raising rollers 39 are rotatably provided at predetermined intervals on one side surface of the free end portions of the pair of back raising arms 38 facing each other. Each pair of back raising rollers 39 rolls to an engagement member (not shown) having a U-shaped cross section provided on the lower surface of the back raising floor portion 24 of the floor plate body 21 along the longitudinal direction of the bed frame 6. Engagement possible.
[0028]
Accordingly, when the back raising arm 38 is driven in the raising direction, the back raising floor 24 is raised in accordance with the raising, and the waist raising floor 23 is interlocked with the back raising floor 24. It has become.
[0029]
As shown in FIGS. 3 and 7A to 7C, cylindrical bodies 42 are rotatably attached to both ends of the second drive shaft 36 in the axial direction. On the outer peripheral surface of each cylindrical body 42, an operation lever 41 for sliding the cylindrical body 42 along the axial direction of the second drive shaft 36 is provided along the radial direction. The base end portion of the leg raising arm 43 is fixed at a position shifted by a predetermined angle in the circumferential direction with respect to 41. A leg raising roller 44 is rotatably provided at the free end of the leg raising arm 43.
[0030]
A leg raising roller 44 provided on one leg raising arm 43 is in contact with a guide rail 45 provided on the lower surface of the first left leg raising floor 25, and a leg provided on the other leg raising arm 43. The raising roller 44 is in contact with a guide rail 45 (shown in FIGS. 8A to 8C) provided on the lower surface of the first right leg raising floor portion 27. The pair of leg raising arms 43 engage with a holding member (not shown) provided on the bed frame 6 in a substantially horizontal state shown in FIG. 7A, and are held so as not to rotate downward. Yes.
[0031]
The second drive shaft 36 is provided with a proximal end portion of an interlocking member 46 in the vicinity of each cylindrical body 42 fixedly provided. As shown in FIG. 7A, the interlocking member 46 is attached at an angle located below a leg raising arm 43 held substantially horizontally by a predetermined angle, and the free end portion serves as an engaging portion. An engagement shaft 47 is provided so as to project toward the leg raising arm 43.
[0032]
An engagement recess 48 that engages with the engagement shaft 47 when the leg raising arm 43 is slid in the direction approaching the interlocking member 46 is formed at the base end of the leg raising arm 43.
[0033]
As shown in FIG. 7A, even if the second drive shaft 36 is rotationally driven in a state where the leg raising arm 43 is separated from the interlocking member 46, the interlocking member 46 only rotates in the upward direction. The arm 43 does not rotate and remains held in a horizontal state.
[0034]
As shown in FIG. 7B, when the second drive shaft 36 is rotationally driven in a state in which the leg raising arm 43 is slid and the engagement recess 48 is engaged with the engagement shaft 47, FIG. ), The leg raising arm 43 is interlocked with the rotation of the interlocking member 46 in the upward direction. Accordingly, the first left and right leg raised floor portions 25 and 27 can be driven in the upward direction.
[0035]
As shown in FIG. 6, resin sleeves 49 (only one is shown) are attached to both ends of the second drive shaft 36, and the base ends of the leg raising arms 43 are fixed to the sleeves 49. The cylindrical body 42 is slidably fitted. The sleeve 49 is provided with a receiving portion 49a that protrudes on the outer peripheral surface and can be elastically displaced radially inward. The sleeve 42 is provided with first and second convex portions 42a and 42b which are elastically engaged with and disengaged from the receiving portion 49a.
[0036]
When the cylindrical body 42 is slid along the sleeve 49, the first and second convex portions 42a and 42b are elastically engaged and disengaged with respect to the receiving portion 49a. Accordingly, the engagement recess 48 of the leg raising arm 43 shown in FIG. 6 is engaged with the engagement shaft 47 of the interlocking member 46, and the engagement recess 48 and the engagement shaft 47 are not shown. The cylindrical body 42 is elastically held in a state in which it does not slide freely with respect to the sleeve 49 at the position where it is out of alignment.
[0037]
A colored seal 50 is provided on the outer peripheral surface of one end of the sleeve 49 in the axial direction. As shown in FIG. 6, the colored seal 50 is exposed when the engaging recess 48 provided in the leg raising arm 43 is engaged with the engaging shaft 47 of the interlocking member 46. When it is disengaged from the engaging shaft 47, it is covered by the cylindrical body 42. Therefore, the slide position of the leg raising arm 43 can be determined based on whether or not the colored seal 50 is exposed.
[0038]
When the first left and right leg raised floor portions 25 and 27 are rotated in the upward direction, the second left and right leg raised floor portions 26 and 28 are interlocked with the rotation. The second left and right leg raised floor portions 26 and 28 can be held at a predetermined angle with respect to the first left and right leg raised floor portions 25 and 27 by a holding mechanism 51, respectively.
[0039]
As shown in FIG. 5, the holding mechanism 51 has a pair of holding members 52 disposed along the longitudinal direction at both ends in the width direction of the bed frame 6. The holding member 52 is formed by bending a plate material in a substantially U shape, and a first holding groove 53 and a second holding groove 54 are formed at one end in the longitudinal direction of both side walls, and the other end is formed at the other end. A third holding groove 55 is formed.
[0040]
As shown in FIGS. 8A to 8C, the other ends of the second left and right leg holding floor portions 26 and 28 having one end pivotally attached to the first left and right leg raised floor portions 25 and 27, respectively. One end of a support rod 56 is pivotally attached to the lower surface of the part. At the other end of the support rod 56, a support shaft 57 is provided as an engagement member that is detachably engaged with the holding grooves 53 to 55.
[0041]
As shown in FIGS. 9A and 9B, the first holding groove 53 has a U-shaped flange portion 53a and one end continuous with the flange portion 53a, and the height increases toward the second holding groove 54. And the other end of the inclined surface 53 b is continuous with the upper end surface of the holding member 52.
[0042]
Similarly to the first holding groove 53, the second holding groove 54 is formed by a flange 54a and an inclined surface 54b, and the third holding groove 55 is formed by a flange 55a.
[0043]
As shown in FIG. 8 (a), the first left and right leg raised floor portions 25, 27 are raised in the upward direction with the support shaft 57 engaged with the first holding groove 53 of the holding member 52. When driven, the second left and right leg raised floors 26, 28 interlocked with the first left and right leg raised floors 25, 27 are connected to the first left and right leg raised floors 25, 27. It rises at an angle where the other end is positioned below the other end.
[0044]
As shown in FIG. 8B, when the first left and right leg raised floor portions 25 and 27 are driven in the raising direction with the support shaft 57 engaged with the second holding groove 54, The second left and right leg raised floor portions 26 and 28 interlocked with the first left and right leg raised floor portions 25 and 27 are connected to one end connected to the first left and right leg raised floor portions 25 and 27. Ascend at an angle where the other ends are approximately the same height. That is, the first left and right leg holding floor portions 26 and 28 are held substantially horizontally.
[0045]
As shown in FIG. 8 (c), the second left and right leg raised floors 26 and 28 are angled such that the other end is higher than one end connected to the first left and right leg raised floors 25 and 27. The first left and right leg raised floor portions 25, 27 are raised with the support shaft 57 of the support rod 56 engaged with either the first or second holding groove 53, 54. Driven upward, the second left and right leg raised floors 26, 28 are raised to the state shown in FIG. 8 (a) or (b). Next, when the support shaft 57 is removed from the first or second holding groove 53, 54 and engaged with the third holding groove 55, the second left and right leg raised floor portions 26, 28 are moved to the first The left and right leg raised floor portions 25 and 27 can be raised at an angle at which the other end is higher than one end.
[0046]
In order to cause the second left and right leg raised floor portions 26 and 28 to fall horizontally, the support shaft 57 is removed from the third holding groove 55 and engaged with the first or second holding groove 53 or 54. Therefore, the first left and right leg raised floor portions 25 and 27 may be driven in the lying down direction.
[0047]
  Thus, by engaging the support shaft 57 with any one of the first to third holding grooves 53 to 55, the second left side and the second left side and the right leg raised floor portions 25, 27 Right leg raised floor26,The angle formed by 28 can be changed.
[0048]
In addition, when the first, second left and right leg raised floor portions 25 to 28 are laid down almost horizontally as shown in FIG. 9A in the state of FIG. It deviates from the flange 53a of the holding groove 53 and rises to its upper end along the inclined surface 53b.
[0049]
  When the second left and right leg raised floor portions 28 are driven in the upward direction with the support shaft 57 raised to the upper end of the inclined surface 53b, the support shaft 57 is lowered along the inclined surface 53b, and the first Engage with the flange 53 a of the holding groove 53. Therefore, the second left and right leg raised floors26,28 can be held at the angle shown in FIG.
[0050]
That is, as shown in FIG. 9A, in a state where the first and second left and right leg raising floor portions 25 to 28 are lying down almost horizontally, the support rod 56 extends from the pivot end to the support shaft 57. Distance is L₁Is the distance L from the pivot end to the buttocks 53a₂Shorter than.
[0051]
  Therefore, when the support shaft 57 lies on the inclined surface 53b when the undulations of the first and second left and right leg raised floor portions 25 to 28 are laid down almost horizontally, the support shaft 57 is driven in the upward direction. Since it descends along the inclined surface 53b and engages with the flange 53a, L₁<L₂Even the second left and right leg raised floor26,28 can be automatically held at a predetermined angle.
[0052]
  In the state where the support shaft 57 is engaged with the second engagement groove 54 as shown in FIG. 8B, as shown in FIG. 9B, from the pivot end of the support rod 56 to the support shaft 57 Distance ofSeparation L ₁Then, the distance from the pivot end to the flange portion 54a of the second engagement groove 54 is substantially equal. Therefore, the second left and right leg raised floor portions with the support shaft 57 engaged with the flange portion 54a of the second engagement groove 54.26,28 will be driven.
[0053]
A mattress 61 shown in FIG. 10 is placed on the upper surface of the floor plate 21. The mattress 61 is configured by covering an elastic material such as urethane foam (not shown) with a bag-like exterior material 62, and includes first left and right leg raised floor portions 25 at one end in the longitudinal direction. 27 and the second left and right leg raised floor portions 26 and 28 are divided by a cutting line 63 into a pair of left and right first portions 64a and a second portion 64b.
[0054]
FIG. 11 shows a modification of the mattress 61, and the mattress 61 is formed of a cloth having an exterior fabric 62 having elasticity. Therefore, in the pair of left and right first and second portions 64a and 64b formed at one end of the mattress, only the urethane foam accommodated in the exterior ground 62 is divided, and the exterior ground 62 is not divided.
[0055]
When either one of the pair of first and second portions 64a and 64b is lifted in the upward direction by the left and right first and second leg raising floor portions 25 to 28, the exterior ground 62 is expanded. It is supposed to be.
[0056]
Next, a case where the wake-up bed apparatus having the above configuration is used will be described.
[0057]
When the first drive source 33 of the floor drive mechanism 31 is actuated to rotate the first drive shaft 35, the back raising arm 38 is driven in the raising direction as shown by a chain line in FIG. The As a result, the back raised floor portion 24 of the floor plate body 21 is driven in the raising direction, and the waist raised floor portion 23 is also raised in conjunction with the back raised floor portion 24. Therefore, the user who is supine on the mattress 61 of the floor board 21 is woken up.
[0058]
On the other hand, the first left and right leg raised floor portions 25, 27 of the floor plate body 21 operate the second drive source 34 of the floor portion drive mechanism 31 to rotate the second drive shaft 36. Either one or both can be activated.
[0059]
When raising either the first left leg raising floor 25 or the right leg raising floor 27, one leg raising arm located on the first left or right leg raising floor to be raised. 43 is slid from the state shown in FIG. 7A in a direction approaching the interlocking member 46 as shown in FIG. 7B, and the engaging recess 48 is engaged with the engaging shaft 47 provided in the interlocking member 46. Combine.
[0060]
In this state, when the second drive source 34 is operated to rotate the second drive shaft 36, one of the engagement recesses 48 engaged with the engagement shaft 47 of the interlocking member 46 that interlocks with the rotation. The leg raising arm 43 rotates in the raising direction. Accordingly, one leg-raised floor portion, for example, the first left-side leg-raised floor portion 25 is driven in the raising direction by the leg-raising roller 44, so that the first left-legged leg-raised floor portion 25 is connected to the first left-side leg-raised floor portion 25. The two left leg raised floor portions 26 are interlocked and held by the holding mechanism 51 at a predetermined angle with respect to the first left leg raised floor portion 25.
[0061]
Instead of the first left leg raising floor 25, only the first right leg raising floor 27 may be driven in the raising direction by the rotation of the second drive shaft 36. That is, in that case, the second leg raising arm 43 for raising the first right leg raising floor 27 is slid along the second drive shaft 36, and the engaging recess 48 is moved to the interlocking member. It is made to engage with 46 engaging shafts 47.
[0062]
The second leg raising arm 43 for raising the first left leg raising floor 25 is slid to a position where the engaging recess 48 is disengaged from the engaging shaft 47 of the interlocking member 46. If the second drive shaft 36 is rotationally driven by the second drive source 34 in this state, only the first right leg raising floor 27 is driven in the raising direction by the leg raising arm 43.
[0063]
Thus, not only one of the first left leg raising floor portion 25 and the first right leg raising floor portion 27 can be selectively driven in the raising direction. It is also possible to drive both the right leg raising floor portions 25 and 27 simultaneously in the raising direction. In that case, a pair of leg raising arms 43 for driving the first left leg raising floor portion 25 and the first right leg raising floor portion 27 in the raising direction, and these engagement recesses 48 are respectively connected to the interlocking member 46. Slide to engage with the engagement shaft 47. Accordingly, the pair of leg raising arms 43 are interlocked with the rotation of the second drive shaft 36, so that the first left and right leg raising floor portions 25 and 27 can be driven up and down together.
[0064]
In this embodiment, the floor driving mechanism 31, the leg raising arm 43 and the interlocking member 46 selectively or simultaneously drive the left leg raising floor 25, 26 or the right leg raising floor 27, 28. The drive means for doing is comprised.
[0065]
When the first left and right leg raised floor portions 25 and 27 are driven in the raising direction, the second left and right leg raised floor portions 26 and 28 are moved by the movement of the leg raised floor portions 25 and 27 in the raising direction. Are linked. The second left and right leg raised floor portions 26 and 28 can be held at a predetermined angle by the holding mechanism 51.
[0066]
In other words, the support shaft 57 provided at the other end of the support rod 56 having one end pivotally attached to the free ends of the second left and right leg raised floor portions 26, 28 is formed on the holding member 52. The holding angle of the second left and right leg raised floor portions 26 and 28 with respect to the first left and right leg raised floor portions 25 and 27 is changed depending on which of the third holding grooves 53 to 55 is engaged. be able to.
[0067]
That is, as shown in FIG. 8A, when the support shaft 57 is engaged with the first holding groove 53, the second left and right leg raised floor portions 26, 28 are raised to the first left and right leg raised. If the other end, which is a free end, is lower than the other end connected to the floor portions 25 and 27, and the support shaft 57 is engaged with the second holding groove 54, FIG. ), The second left and right leg raised floor portions 26 and 28 can be held substantially horizontally.
[0068]
Further, when the support shaft 57 is engaged with the third holding groove 55, the other ends of the second left and right leg raised floor portions 26 and 28 become higher than one end, as shown in FIG. 8C. Can be held in a state.
[0069]
That is, according to the wake-up type bed apparatus having the above-described configuration, the first and second left-side leg raised floor portions 25 correspond to the left and right leg portions of the user as the leg floor portions for lifting the leg portions of the user. , 26 and first and second right leg raising floor portions 27, 28, and either one of the left and right leg raising floor portions can be selectively raised or both can be raised simultaneously. I was able to do it.
[0070]
Therefore, the user can lie down with only one leg lifted or can lie with both legs lifted.
[0071]
In addition, the second left and right leg raised floors 26 and 28 that hold the lower part of the user's leg from the knee hold the angle with respect to the first left and right leg raised floors 25 and 27. 51 can be changed in stages and held.
[0072]
Therefore, the user can not only lift and hold one leg or both legs, but also change the bending angle of the leg at that time. For example, a state with the least burden on the user or a state most suitable for the medical condition.
[0073]
The mattress 61 placed on the upper surface of the floor plate 21 is cut by a cutting line 63 from the center in the width direction corresponding to the first and second left leg raised floor portions 25 and 26 and the right leg raised floor portions 27 and 28. It divided | segmented into the 1st part 64a and the 2nd part 64b.
[0074]
Therefore, even if only one of the first and second left leg raised floor portions 25 and 26 or the first and second right leg raised floor portions 27 and 28 is driven in the raising direction, Since the mattress 61 can smoothly deform only one portion in the width direction corresponding to the left and right leg raised floor portions raised as shown in FIG. 10B and FIG. Only the left and right leg portions of the user can be securely and smoothly raised.
[0075]
The present invention is not limited to the one embodiment described above and can be variously modified. For example, a pair of leg raising arms and an interlocking member are provided on each second driving shaft that is rotationally driven by the second driving source of the floor driving mechanism, and the left or right leg raising floor is driven up and down. However, a pair of leg raising arms and interlocking members are attached to separate drive shafts, and each drive shaft is driven to rotate by a separate drive source, so that the left or right leg raised floor is driven up and down. It does not matter if you do it.
[0076]
Further, the left and right leg raised floors are constituted by a first leg raised floor part pivotally attached to the fixed floor part and a second leg raised floor part pivotally attached to the first leg raised floor part. The first leg raising floor may be used alone.
[0077]
Further, the present invention can be applied even to a floor plate body having only a fixed floor portion and a leg-raised floor portion without a waist-raised floor portion or a back-raised floor portion.
[0078]
In addition, the first and second leg raised floor portions are divided into a pair of left and right, but the first and second leg raised floor portions may be a single piece without being divided into left and right.
[0079]
【The invention's effect】
As described above, according to the present invention, the holding angle of the second leg raised floor portion by the holding mechanism can be changed.
[0080]
Therefore, it is possible to hold the leg at an optimal bending angle according to the usage situation of the user, so it is possible to reduce, for example, the burden on the user or hold it in the state most suitable for the medical condition. It has the advantage of becoming.
[Brief description of the drawings]
FIG. 1 is a perspective view of a wake-up bed apparatus according to an embodiment of the present invention.
2A is a side view of a wake-up bed apparatus excluding a floor board body, and FIG. 2B is a side view of the wake-up bed apparatus including a floor board body.
FIG. 3 is a plan view of the wake-up bed apparatus excluding the floor plate body.
4A is a plan view of a floor plate body, and FIG. 4B is a plan view of a wake-up bed apparatus.
FIG. 5 is a perspective view of one end portion provided with a bed frame holding mechanism.
FIG. 6 is a cross-sectional view of one end portion of a second drive shaft.
FIG. 7 is a perspective view showing a leg raising arm and an interlocking member.
FIG. 8 is an explanatory view showing a state in which the second leg-raised floor is held at different angles.
9A is an explanatory view of a state in which the support shaft is engaged with the first holding groove and the second leg raised floor portion is laid down, and FIG. 9B is a diagram illustrating the support shaft being used as the second holding groove. Explanatory drawing of the state which made it engage and fell the 2nd leg raising floor part.
10A is a plan view of the mattress, and FIG. 10B is a perspective view showing a state in which one part of the mattress is deformed according to the rise of the leg-lifting floor portion.
FIG. 11 is a perspective view showing a modification of the mattress.
[Explanation of symbols]
6 ... Bed frame
21 ... Floor board
22 ... Fixed floor
25. First left leg raising floor
26 ... Second left leg raised floor
27. First right leg raising floor
28 ... Second right leg raising floor
31 ... Floor drive mechanism
34 ... Second drive source
36 ... second drive shaft
38 ... Back raising arm
43 ... Leg raising arm
44 ... Leg raising roller
46. Interlocking member
47 ... engaging shaft
48 ... engaging recess
51. Holding mechanism
52. Holding member
61 ... Mattress

Claims (2)

A bed frame,
A fixed floor portion fixed to the bed frame, and a floor plate body having a first leg-raised floor portion and a second leg-raised floor portion connected to one end of the fixed floor portion so as to be sequentially rotatable;
It has a leg raising arm that is rotationally driven in the direction in which the distal end rises with the base end as a fulcrum, and when the leg raising arm is rotationally driven in the upward direction, the distal end of the first leg raising floor is Driving means for pressing in the lower surface and driving in the direction in which the other end rises with one end connected to the fixed floor as a fulcrum;
When the other end of the first leg raised floor is driven in the ascending direction, the second leg raised floor interlocked with the first leg raised floor is held at the raised position, Comprising a holding mechanism capable of changing the holding angle of the two leg-raised floors;
In the holding mechanism, a plurality of holding grooves are provided at predetermined positions in the longitudinal direction, and the longitudinal direction thereof is aligned with the longitudinal direction of the bed frame at a position corresponding to the second leg raised floor portion of the bed frame. A holding member provided, and an engaging member that is pivotally attached at one end to the free end of the second leg raised floor and detachably engages with the holding groove at the other end. A support rod for holding the second leg raised floor portion at a predetermined angle by engaging with one of the holding grooves;
When the engaging member provided at the other end of the support rod is engaged with the holding member and the first leg-raised floor is driven in the upward direction, the second leg-raised floor is A first holding groove for holding the free end inclined downward relative to the horizontal state, and a second holding groove for holding the second leg raised floor portion substantially horizontally, are provided.
In the first holding groove, when the second leg-raised floor portion is laid down substantially horizontally together with the support rod in a state where the engaging member is engaged with the first holding groove, the first holding groove When the engaging member is slid in a direction away from the first holding groove and the second leg raised floor portion is raised from the state where the second leg raised floor portion is almost horizontally lying down in conjunction with the first leg raised floor portion. A wake-up bed apparatus, wherein an inclined surface is formed for returning the engaging member released from the first holding groove to the first holding groove .   The first leg-raised floor and the second leg-raised floor are divided into a pair of left and right positioned at one end and the other end in the width direction of the fixed floor, and a pair of left and right second The wake-up bed apparatus according to claim 1, wherein each of the leg raising floor portions is held by the holding mechanism.

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