阅读说明：本技术 底板装置、床装置及底板装置的控制方法 (Floor device, bed device, and control method for floor device ) 是由 樱井诚太郎 井原寿一 石本昭雄 于 2020-10-13 设计创作，主要内容包括：提供一种能够将使用者引导为恰当的姿势的底板装置、床装置及底板装置的控制方法。底板装置(1)具备：腰底板(40)；背底板(10),该背底板能够相对于腰底板(40)变更角度；以及腰支撑(30),该腰支撑的第一端部(31)能够转动地与腰底板(40)连结,并且,该腰支撑的第二端部(32)与背底板(10)的相对位置随着背底板(10)的角度的变化而变化。(Provided are a floor device, a bed device, and a control method for the floor device, wherein the floor device can guide a user to an appropriate posture. A floor device (1) is provided with: a waist panel (40); a back chassis (10) that can change the angle relative to the lumbar chassis (40); and a lumbar support (30) having a first end (31) rotatably connected to the lumbar plate (40), and having a second end (32) that changes in position relative to the back plate (10) as the angle of the back plate (10) changes.)

1. A floor device is characterized by comprising:

a lumbar plate;

a back chassis that can change an angle with respect to the lumbar chassis; and

and a lumbar support having a first end portion rotatably coupled to the lumbar support plate and a second end portion relative to the back support plate, the relative position of the second end portion of the lumbar support and the back support plate being changed in accordance with a change in the angle of the back support plate.

2. Floor device according to claim 1,

further comprising a back support disposed on the back base plate and rotatably connected to the second end of the waist support,

as the angle of the back plate changes, the lower surface of the back support slides relative to the upper surface of the back plate.

3. Floor device according to claim 2,

the rigidity of the back support in the direction away from the second end portion is lower than the rigidity of the waist support in the direction away from the second end portion.

4. Floor device according to claim 3,

a slot is formed in the back support and extends in a direction parallel to the first end.

5. Floor arrangement according to any of the claims 2 to 4,

when the angle of the back bottom plate is less than a predetermined value, the lumbar support is superposed on the back bottom plate, and when the angle of the back bottom plate is greater than or equal to the predetermined value, the lumbar support is separated from the back bottom plate.

6. Floor arrangement according to one of the claims 1 to 5,

when the angle of the back bottom plate increases, the back bottom plate moves in a direction away from the lumbar bottom plate and moves upward.

7. The floor device according to any one of claims 1 to 6, further comprising:

a knee bottom plate rotatably connected to the waist bottom plate;

a knee brace rotatably coupled to the knee base plate; and

a foot plate rotatably coupled to the knee brace,

the knee brace is bendable in multiple sections in a direction from the knee baseplate toward the foot baseplate.

8. Floor device according to claim 7,

a slot is formed in the knee brace and extends in a direction parallel to the first end.

9. A bed device is characterized by comprising:

a backplane device according to any one of claims 1 to 8; and

a frame supporting the floor means.

10. A control method for a backplane device, the backplane device comprising:

a lumbar plate;

a back chassis that can change an angle with respect to the lumbar chassis; and

a lumbar support, at least a portion of which is disposed to overlap the back chassis and an angle of which varies with a variation in an angle of the back chassis,

the control method of the floor device is characterized in that:

the angle of the lumbar support is increased so as to increase the angle of the backboard and raise the pelvis of the user.

11. A bed device is characterized by comprising:

a backplane means; and

a frame supporting the floor means,

the floor device has:

a lumbar plate;

a back chassis that can change an angle relative to the lumbar chassis; and

a lumbar support, at least a portion of which is disposed to overlap the back chassis and an angle of which varies with a variation in an angle of the back chassis,

the angle of the lumbar support is increased so as to increase the angle of the backboard and raise the pelvis of the user.

Technical Field

Embodiments of the present invention relate to a floor device, a bed device, and a control method for the floor device.

Background

In the bed device, the user can be guided to various postures by driving the floor device. It is desirable that the floor means guide the user into the correct posture.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2015-202298

Disclosure of Invention

Problems to be solved by the invention

An object of an embodiment of the present invention is to provide a floor device, a bed device, and a control method for the floor device, which can guide a user to an appropriate posture.

Means for solving the problems

The floor device according to the embodiment includes: a lumbar plate; a back chassis that can change an angle with respect to the lumbar chassis; and a lumbar support having a first end portion rotatably coupled to the lumbar support plate and a second end portion relative to the back support plate, the relative position of the second end portion of the lumbar support and the back support plate being changed in accordance with a change in the angle of the back support plate.

The bed device according to the embodiment includes the floor device, and a frame supporting the floor device.

A control method of a floor device according to an embodiment includes: a lumbar plate; a back chassis that can change an angle with respect to the lumbar chassis; and a lumbar support, at least a portion of which is disposed to overlap the back chassis, and an angle of which varies with a variation in an angle of the back chassis. In the control method, the angle of the lumbar support is increased so as to raise the pelvis of the user by increasing the angle of the backboard.

Effects of the invention

According to the embodiments of the present invention, it is possible to realize a floor device, a bed device, and a control method of the floor device, which can guide a user to an appropriate posture.

Drawings

Fig. 1(a) to (c) are views showing the floor device according to the first embodiment, wherein (a) shows a sleeping position, (b) shows a sitting position, (c) shows an example of a back lifting mechanism, and (d) shows an example of an engaging portion between the back floor and the waist support.

Fig. 2(a) and (b) are views showing a state in which a user is in a sitting position, wherein (a) shows the first embodiment and (b) shows a comparative example.

Fig. 3(a) and (b) are views showing the bed device according to the second embodiment, wherein (a) shows a sleeping position and (b) shows a sitting position.

Fig. 4(a) is a plan view showing the back support in the second embodiment, (b) is a sectional view taken along line a-a' shown in (a), and (c) is a sectional view showing a state in which the back support is bent.

Fig. 5 is a view showing an engaging portion of the back plate, the back stay, and the lumbar stay according to the second embodiment.

FIG. 6(a) is a plan view showing the knee brace according to the second embodiment, (B) is a sectional view taken along line B-B' shown in (a), and (c) is a sectional view showing a state in which the knee brace is bent.

Fig. 7(a) shows a state in which a user with a high height uses the floor device according to the second embodiment, (b) shows a state in which a user with a low height uses the floor device according to the second embodiment, (c) shows a state in which a user with a high height uses the floor device according to the comparative example, (d) shows a state in which a user with a low height uses the floor device according to the comparative example, (e) shows a state in which a user with a high height uses the floor device according to the comparative example improperly, and (f) shows a state in which a user with a low height uses the floor device according to the comparative example improperly.

Fig. 8 is a perspective view showing a bed device according to a third embodiment.

Fig. 9 is an exploded side view showing a floor device according to a third embodiment.

Fig. 10 is a side view showing a floor device according to a third embodiment.

Fig. 11(a) to (c) are side views showing the floor device according to the third embodiment, where (a) shows a case where the angle of the back floor is 0 °, (b) shows a case where the angle of the back floor is 15 °, and (c) shows a case where the angle of the back floor is 30 °.

Fig. 12(a) to (c) are side views showing the floor device according to the third embodiment, where (a) shows a case where the angle of the back floor is 45 °, where (b) shows a case where the angle of the back floor is 60 °, and where (c) shows a case where the angle of the back floor is 75 °.

Fig. 13 is a flowchart showing an example of a method for controlling a bed device according to the third embodiment.

Detailed Description

(first embodiment)

First, a first embodiment will be explained.

Fig. 1(a) to (c) are views showing the floor device according to the present embodiment, wherein (a) shows a sleeping position, (b) shows a sitting position, (c) shows an example of a back lifting mechanism, and (d) shows an example of an engaging portion between the back floor and the waist support.

Fig. 2(a) and (b) are diagrams showing a state of a user in a sitting position, wherein (a) shows the present embodiment and (b) shows a comparative example.

The drawings are schematic and are made appropriate, emphasized, simplified or omitted. For example, in an actual bed device, a mattress is sandwiched between the floor device and the user, and the mattress is not shown in many figures. In addition, in an actual product, the shape of each part is more complicated. The same applies to other figures described later.

As shown in fig. 1(a) to (c), the floor device 1 according to the present embodiment is provided with a back floor 10, a lumbar support 30, and a lumbar floor 40. The floor device 1 is also provided with a knee floor and a foot floor, but these are omitted in the present embodiment.

The back chassis 10, the lumbar support 30, and the lumbar chassis 40 are arranged in this order. That is, the lumbar support 30 is disposed between the back board 10 and the lumbar board 40. Hereinafter, the direction from the back chassis 10 toward the lumbar chassis 40 is referred to as "foot side", and the direction from the lumbar chassis 40 toward the back chassis 10 is referred to as "head side".

For example, the lumbar plate 40 is fixed to a frame described later, and therefore, the angle does not change. In the present specification, the term "floor angle" refers to an angle formed by the upper surface of the floor and the floor surface, and is 0 ° horizontally and 90 ° vertically. The angle of the lumbar plate 40 is, for example, 0 °. The angle of the back chassis 10 can be adjusted, for example, in the range of 0 ° to 75 °. Therefore, the back board 10 can change the angle with respect to the lumbar plate 40.

The foot-side end 31 (first end) of the lumbar support 30 is rotatably connected to the head-side end 41 of the lumbar plate 40. For example, the lumbar support 30 and the lumbar plate 40 are coupled by a thin resin sheet having flexibility. Thereby, the lumbar support 30 can be rotated with respect to the lumbar chassis 40 by the deformation or bending of the resin sheet. The head-side end portion 32 (second end portion) of the lumbar support 30 is in contact with the upper surface 10a of the backboard 10, but is not coupled to the backboard 10.

In the floor device 1 according to the present embodiment, the back lifting mechanism for controlling the angle of the back floor 10 has a high degree of freedom. That is, regardless of the mode of movement of the backboard 10, the lumbar support 30 becomes a bridge between the backboard 10 and the lumbar support 40 by appropriately setting the length of the lumbar support 30, and therefore a series of continuous support bodies can be constituted by the backboard 10, the lumbar support 30, and the lumbar support 40. In the example shown in fig. 1(c), the two rods 13 and 14 disposed on the back side of the back board 10 move the back board 10 away from the lumbar board 40 while controlling the angle of the back board 10.

Next, the operation of the floor device according to the present embodiment will be described.

As shown in fig. 1(a), when the floor device 1 is in the sleeping position, the angle of the back floor 10 is, for example, 0 °. At this time, the head-side end 32 of the lumbar support 30 rides on the foot-side end 11 of the backboard 10 and contacts the end 11.

The lumbar support 30 may protrude from the upper surface 10a of the backboard 10 as shown in fig. 1(a), but may be formed as a flat surface by thinning the end portion 11 of the backboard 10 and the end portion 32 of the lumbar support 30 as shown in fig. 1(d) so that the upper surface of the end portion 32 is at the same height as the upper surface 10a, or may be disposed at a position lower than the upper surface 10 a. In either case, the end 32 of the lumbar support 30 is attached to the end 11 of the back panel 10.

As shown in fig. 1(b), when the floor device 1 is transitioned from the sleeping position to the sitting position, the angle of the back floor 10 is increased. At this time, the end 32 of the lumbar support 30 contacts the back chassis 10, and the end 31 of the lumbar support 30 is rotatably coupled to the lumbar chassis 40, so that the end 32 of the lumbar support 30 is pressed by the back chassis 10 and the lumbar support 30 rotates as the angle of the back chassis 10 increases. At this time, the end portion 32 slides with respect to the back chassis 10, and the relative position with respect to the back chassis 10 changes. That is, the end portion 32 of the lumbar support 30 changes in position in contact with the upper surface 10a of the backboard 10 while contacting the upper surface 10 a. Thereby, the angle of the lumbar support 30 is increased.

As shown in fig. 2(a), according to the floor device 1 of the present embodiment, when the floor device 1 transitions from the sleeping position to the sitting position, the angle of the lumbar support 30 increases as the angle of the back floor 10 increases. Thus, the pelvis Up of the user U is pressed by the lumbar support 30, and the user U can sit Up with the pelvis Up upright. This can guide the user U to a proper sitting posture.

The user U sits Up with the pelvis Up standing, and has the following advantages.

For the user U, breathing is comfortable because of the low pressure on the abdomen. In addition, since the abdominal pressure is small, the meal is easy to take. Further, since the weight is borne not by the lumbar vertebrae but by the ischials, the risk of decubitus ulcers can be reduced.

On the other hand, since the movable region of the upper body of the user U is wide, the caregiver can easily move the user U. For example, it is easy to install a hoist rope of a hoist.

In contrast, as shown in fig. 2(b), the floor device 201 according to the comparative example is not provided with the lumbar support 30. Therefore, when the floor device 201 transitions from the sleeping position to the sitting position, the user U pushes the back plate 10 to push the spine Ub and sits Up, but the pelvis Up is not pushed, and therefore the user U is displaced to the foot side and the pelvis Up does not stand Up. Therefore, the user U is highly likely to take a sitting posture with the user U being in a state of being stooped on the back.

Next, the effects of the present embodiment will be described.

As described above, according to the chassis device 1 of the present embodiment, when the angle of the back chassis 10 is increased, the end portion 32 of the lumbar support 30 is slid by the back chassis 10, and the end portion 31 is rotated as the rotation axis with respect to the lumbar chassis 40, so that the angle of the lumbar support 30 is also increased. Thereby, the user U is guided to the sitting posture in which the pelvis Up is raised by pressing the pelvis Up with the lumbar support 30.

(second embodiment)

Next, a second embodiment will be explained.

Fig. 3(a) and (b) are views showing the bed device according to the present embodiment, wherein (a) shows a sleeping position, and (b) shows a sitting position.

As shown in fig. 3(a), the bed device 102 according to the present embodiment is provided with a frame 120 and a floor device 2. The frame 120 supports the floor device 2.

The floor device 2 is provided with a back floor 10, a back support 20, a lumbar support 30, a lumbar floor 40, a knee floor 50, a knee support 60, and a foot floor 70, and is arranged in this order from the head side toward the foot side. The back chassis 10, lumbar support 30, and lumbar chassis 40 have the same structure as the first embodiment. The back plate 10, the lumbar support 30, the lumbar plate 40, the knee plate 50, and the foot plate 70 are, for example, plate-shaped members formed by integrally combining a plurality of components.

The position and angle of the back chassis 10 are controlled by an actuator (not shown) connected to the lower surface 10b of the back chassis 10. When the angle of the back plate 10 is increased, the actuator moves the back plate 10 toward the head, i.e., in a direction away from the lumbar plate 40, and moves the back plate 10 upward.

The foot-side end 22 of the back support 20 is rotatably connected to the head-side end 32 of the lumbar support 30. The head-side end 21 of the back support 20 is not connected thereto. The back support 20 is disposed on the back chassis 10 and overlaps with the foot side portion of the back chassis 10. In a state where the user U is sleeping, the lower surface 20b of the back support 20 is in contact with the upper surface 10a of the back panel 10, but is not connected to the back panel 10. Therefore, as with the lumbar support 30, the lower surface 20b of the back support 20 slides with respect to the upper surface 10a of the back base plate 10 as the angle of the back base plate 10 changes. The length of the back support 20 is arbitrary, and any length may be used as long as a part of the back support 20 overlaps the upper surface 10a of the back plate 10 regardless of the angle of the back plate 10.

The rigidity of the back support 20 is lower than that of the lumbar support 30 in a direction from the foot side to the head side (hereinafter, referred to as the "bed longitudinal direction"), i.e., in a direction away from the end portion 32. For this reason, when the angle of the backboard 10 is increased and the back support 20 and the lumbar support 30 are pressed by the backboard 10, the lumbar support 30 is hardly bent, but the back support 20 is slightly bent in the thickness direction along the bed length direction. In the present embodiment, the lumbar support 30 is not bent at all, but may be bent to some extent, and the back support 20 may be bent slightly, but may not be bent.

Fig. 4(a) to (c) show an example of the structure of the back support 20.

Fig. 4(a) is a plan view showing the back support in the present embodiment, (b) is a sectional view taken along line a-a' shown in (a), and (c) is a sectional view showing a state in which the back support is bent.

The back support 20 is entirely formed of a resin material having flexibility. As shown in fig. 4(a) and (b), the back support 20 has a plurality of, for example, three grooves 24 extending from the upper surface 20a of the back support 20 to the horizontal direction (hereinafter, referred to as "bed width direction") perpendicular to the bed length direction. The bed width direction is a direction parallel to the foot-side end 31 of the lumbar support 30.

A plurality of slots 24 are aligned along the length of the bed. The shape of each groove 24 is an inverted trapezoid having an upper side longer than a lower side when viewed from the bed width direction. Therefore, the portion 25 between the grooves 24 in the back support 20 has a trapezoidal shape with the lower side longer than the upper side as viewed from the bed width direction. The slots 24 are formed in three and thus the portions 25 are formed in four.

A through hole 27 penetrating the back support 20 is formed in a portion 26 of the back support 20 located at the bottom of the groove 24. For example, two through holes 27 are formed in each part 26 and arranged in the bed width direction. The length of the through-hole 27 in the bed width direction is longer than the length in the bed length direction.

The portion 26 of the back support 20 located at the bottom of the groove 24 is thinner than the portion 25 between the grooves 24, and has a low rigidity because a through hole 27 is formed. For this reason, as shown in fig. 4(c), the back support 20 is easily bent at the portion 26 in the bed length direction. On the other hand, there is no portion that is easily bent in the bed width direction.

As a result, the back support 20 as a whole has relatively low rigidity in the bed longitudinal direction, and is easily bent so that the upper surface 20a is concave and the lower surface 20b is convex. The rigidity of the back support 20 in the bed length direction is lower than the rigidity of the lumbar support 30 in the bed length direction. In addition, since the back support 20 has the through-hole 27, the air permeability is good.

Fig. 5 is a diagram showing the engaging portions of the back chassis, the back support, and the lumbar support in the present embodiment.

As shown in fig. 5, in the present embodiment, the foot-side end 11 of the backboard 10 is thinner than the other portions of the backboard 10. The head-side end portion 32 of the lumbar support 30 is thinner than the other portions of the lumbar support 30. The sum of the thickness of the end portion 11 and the thickness of the end portion 32 is substantially equal to the thickness of the portion of the back plate 10 other than the end portion 11 and the portion of the lumbar support 30 other than the end portion 32. In addition, the thickness of the back support 20 is substantially the same as the thickness of the end portion 32.

Thereby, a structure having a substantially uniform thickness from the back chassis 10 to the lumbar support 30 can be realized. As a result, when the user U sleeps on the mattress, the feeling of discomfort can be suppressed.

As shown in fig. 3(a), for example, when the floor device 2 is in the sleeping position and the angle of the back floor 10 is less than the predetermined value, the head-side portion of the lumbar support 30 is overlapped on the back floor 10. In addition, the back support 20 is integrally overlapped on the back chassis 10. Therefore, the entire portion where the back chassis 10, the lumbar support 30, and the back support 20 overlap is highly rigid.

On the other hand, as shown in fig. 3(b), for example, when the floor device 2 is in the sitting position and the angle of the back floor 10 is equal to or greater than a predetermined value, the lumbar support 30 is separated from the back floor 10, and the back floor 10 and the lumbar support 30 are bridged by the back support 20. As described above, since the rigidity of the back support 20 is low, the portion from the back chassis 10 to the lumbar support 30 is deflected by the weight of the user U to be deformed in such a manner as to wrap the user U.

As shown in fig. 3(a), the lumbar plate 40 is fixed to the frame 120. In the case where the frame 120 can move up and down, the lumbar plate 40 can also move up and down together with the frame 120. A sleeping position display label 43 is provided on the side surface of the waist panel 40.

The head-side end 51 of the knee bottom plate 50 is rotatably connected to the foot-side end 42 of the lumbar bottom plate 40. The angle of the knee bolster 50 can be controlled by an actuator.

The head-side end 61 of the knee brace 60 is rotatably connected to the foot-side end 52 of the knee bottom plate 50. The knee brace 60 is capable of flexing in multiple sections along the length of the bed. The head-side end 71 of the foot plate 70 is rotatably connected to the foot-side end 62 of the knee brace 60. When the angle of the knee bottom plate 50 is changed by the actuator, the positions and angles of the knee stay 60 and the foot bottom plate 70 are also changed in accordance with the change.

Fig. 6(a) to (c) show an example of the structure of the knee brace 60.

Fig. 6(a) is a plan view showing the knee brace of the present embodiment, (B) is a sectional view taken along line B-B' shown in (a), and (c) is a sectional view showing a state in which the knee brace is bent.

The knee brace 60 is entirely formed of a resin material having flexibility. As shown in fig. 6(a) and (b), the knee brace 60 has a plurality of, for example, two grooves 64 extending in the bed width direction from the lower surface 60b side of the knee brace 60.

A plurality of slots 64 are aligned along the length of the bed. The shape of each groove 64 is a trapezoid with the lower side longer than the upper side when viewed from the bed width direction. Therefore, the portion 65 between the grooves 64 in the knee brace 60 has an inverted trapezoidal shape with the upper side longer than the lower side as viewed in the bed width direction.

A through hole 67 penetrating the knee brace 60 is formed in a portion 66 of the knee brace 60 located at the bottom of the groove 64. For example, two through holes 67 are formed in each portion 66 and arranged in the bed width direction. The length of the through hole 67 in the bed width direction is longer than the length in the bed length direction.

The portion 66 of the knee brace 60 located at the bottom of the groove 64 is thinner than the portion 65 between the grooves 64, and has a through hole 67 formed therein, so that the rigidity is low. For this reason, as shown in fig. 6(c), the knee brace 60 is easily bent at the portion 66 in the bed length direction. On the other hand, there is no portion that is easily bent in the bed width direction.

As a result, the knee brace 60 has relatively low rigidity in the bed longitudinal direction as a whole, and is easily bent with the upper surface 60a being convex and the lower surface 60b being concave, but has relatively high rigidity in the bed width direction, and is difficult to bend. In addition, since the knee brace 60 has the through hole 67, the ventilation is good.

In this manner, the knee brace 60 itself bends at, for example, two portions 66. The end 52 of the knee bottom plate 50 and the end 61 of the knee brace 60 are rotatable, and the end 62 of the knee brace 60 and the end 71 of the foot bottom plate 70 on the head side are also rotatable. For this purpose, the knee brace 60 can be bent in four places in total between the knee baseplate 50 and the foot baseplate 70.

Next, the operation of the bed device according to the present embodiment will be described.

As shown in fig. 3(a), when the floor device 2 is in the sleeping position, the angle of the back floor 10 is, for example, 0 °. At this time, the head-side end 32 of the lumbar support 30 rides on the foot-side end 11 of the backboard 10 and contacts the end 11. The back support 20 connected to the end portion 32 also rides on the back chassis 10 and contacts the back chassis 10. Then, the position of the large rotor of the user U is aligned with the position where the sleeping position indication label 43 is provided, and the user is in a state of sleeping on the floor device 2 via the mattress. When the user U lifts the backboard 10 in a state where the position of the large trochanter and the position where the sleeping position indication label 43 are provided are aligned and bedded, the lumbar support 30 raises the pelvis Up, thereby reducing the displacement and the pressure.

In this way, when the floor device 2 is in the sleeping position, a part of the waist support 30 and the entire back support 20 overlap with the foot side portion of the back floor 10. For this reason, the rigidity of this portion is high. When the floor device 2 is in the sleeping position and the user U is in the sleeping posture, the foot side portion of the back floor 10 receives a large load because it blocks the back of the user U. For this reason, by increasing the rigidity of this portion, a stable feeling can be given to the user.

As shown in fig. 3(b), when the floor device 2 is transitioned from the sleeping position to the sitting position, the actuator increases the angle of the back floor 10, and moves the back floor 10 toward the head side and upward along the upper surface 10a of the back floor 10.

At this time, the end portions 32 of the back support 20 and the lumbar support 30 are in contact with the back chassis 10, and the end portions 31 of the lumbar support 30 are rotatably coupled to the lumbar chassis 40. Therefore, as the angle of the back chassis 10 increases, the end portions 32 of the back support 20 and the lumbar support 30 are pressed by the back chassis 10 and slide upward relative to the back chassis 10. Thereby, the angle of the lumbar support 30 is increased. At this time, the back support 20 is rotatably coupled to the head-side end portion 32 of the lumbar support 30, and the back support 20 itself can be bent in response to an external force. This allows the lower surface 20b of the back support 20 to be in surface contact with the upper surface 10a of the back plate 10, and to smoothly move on the upper surface 10a of the back plate 10.

When the angle of the back plate 10 is equal to or greater than a predetermined value, the back stay 20 is in contact with the back plate 10, but the lumbar stay 30 is separated from the back plate 10. Therefore, the lumbar support 30 does not overlap the back bottom plate 10, and the lumbar support 30 is bridged with the back bottom plate 10 by the back support 20 having a relatively low rigidity. For this reason, the rigidity becomes low as a whole from the foot-side portion of the backboard 10 to the waist support 30. As a result, the weight of the user U bends this portion, and deforms so as to wrap the upper body of the user U. This increases the contact area between the user U (through the mattress) and the floor device 2, and reduces displacement and pressure. In addition, even if the angle of the back chassis 10 is the same, the load causes the shape of the back support 20 to change and the angle of the lumbar support 30 to change. This improves the feeling of holding the user U.

As described above, when the angle of the backboard 10 increases, the backboard 10 presses the spine Ub of the user U, and the lumbar support 30 presses the pelvis Up of the user U, so that the user U can sit Up with the pelvis Up standing. This can guide the user U to a proper sitting posture. In one example, when the angle of the backboard 10 is 30 ° or more, the angle of the lumbar support 30 starts to increase, and the pelvis Up of the user U is raised. At this time, the lumbar support 30 supports the pelvis Up of the user U. The back support 20 supports the thoracic cage or the lumbar vertebrae of the user U, or supports both the thoracic cage and the lumbar vertebrae. Furthermore, when the backrest is lowered, this action is reversed.

On the other hand, the knee bottom plate 50 rotates relative to the lumbar bottom plate 40, and the foot-side end 52 of the knee bottom plate 50 is displaced upward from the head-side end 51. Accordingly, the knee brace 60 is curved convexly upward, and the head-side end 71 of the footrest 70 is raised. Thereby, the knee Uk of the user U is lifted. As a result, the user U can be seated by the operation of the backboard 10, and the body of the user U can be prevented from being displaced toward the feet.

In this case, the knee brace 60 is provided between the knee bottom plate 50 and the foot bottom plate 70, and the knee brace 60 includes a portion connected to the knee bottom plate 50 and a portion connected to the foot bottom plate 70, and can be bent at a plurality of portions. This allows a large arch that protrudes upward to be formed from the knee bottom plate 50 over the foot bottom plate 70. As a result, the knee bottom plate 50, the knee brace 60, and the foot bottom plate 70 can be made to fit the lower body of the user U regardless of the physical constitution of the user U.

This operation will be described in detail below.

Fig. 7(a) to (f) show the effect of knee bracing in comparison with the comparative example.

Fig. 7(a) shows a state in which a user UT with a high height uses the floor device 2 according to the present embodiment, (b) shows a state in which a user US with a low height uses the floor device 2 according to the present embodiment, (c) shows a state in which a user UT with a high height uses the floor device 202 according to the comparative example, (d) shows a state in which a user US with a low height uses the floor device 202 according to the comparative example, (e) shows a state in which a user UT with a high height improperly uses the floor device 202 according to the comparative example, and (f) shows a state in which a user US with a low height improperly uses the floor device 202 according to the comparative example.

As shown in fig. 7(a), when the floor device 2 according to the present embodiment is used by a user UT with a high height, the portions 66 of the knee brace 60 and the foot floor 70 are bent between the knee floor 50 and the knee brace 60, and a large upwardly convex arch is formed over the knee floor 50, the knee brace 60 and the foot floor 70. The arch shape allows the lower leg of the user UT to contact the sole plate 70, thereby fitting the lower body of the user UT.

As shown in fig. 7(b), even when the floor device 2 according to the present embodiment is used for a user US with a low height, a large arch is formed over the knee floor 50, the knee brace 60, and the foot floor 70, and the head side portion of the arch abuts against the knee socket of the user US with a low height, and the lower leg of the user US is placed on the arch, so that the user US can fit the lower body of the user UT.

On the other hand, in the floor device 202 according to the comparative example, two kinds of knee floors 50L and 50S having different lengths from each other are prepared. Furthermore, the knee bottom plate is exchanged in accordance with the user's body length.

That is, as shown in fig. 7(c), when the floor device 202 according to the comparative example is used by a user UT with a high height, the long knee floor 50L is attached to the floor device 202.

On the other hand, as shown in fig. 7(d), when the floor device 202 according to the comparative example is used by a user US with a small height, the short knee floor 50S is attached to the floor device 202.

When the user UT with a high height uses the short knee bottom plate 50S as shown in fig. 7(e), the lower limb makes point contact with the mattress 80 at the heel, as shown by the region C, forming a space on the back side of the calf. For this reason, the position of the user UT is unstable.

Further, as shown in fig. 7(f), when the user US with a low height uses the long knee bottom plate 50L, the knee socket is positioned on the knee bottom plate 50, and therefore the knee cannot be bent, and the lower limb is separated from the foot bottom plate 70 and floats in the air. As a result, the posture is difficult for the user US. In addition, when the back is raised in this posture, the body is likely to be displaced to the feet.

As described above, when the floor device 202 according to the comparative example is used, it takes time and effort to exchange the knee floor in accordance with the user's body length. In addition, a space for accommodating the unused knee bottom plate is required. Further, the prepared knee bottom plate may not fit well depending on the body length of the user.

In contrast, according to the present embodiment, the knee bottom plate 50, the knee brace 60, and the foot bottom plate 70 can be reliably fitted to the lower body of the user regardless of the length of the user.

In addition, by controlling the timing of the back lifting operation and the knee lifting operation, various effects can be obtained. For example, the following procedure is effective in transitioning the user U from the sleeping posture to the sitting posture.

(step 1) the back plate 10 and the knee plate 50 are simultaneously lifted from the sleeping position.

(step 2) the knee bottom plate 50 is stopped after reaching the maximum angle, and the knee of the user U is stopped. On the other hand, the back bottom plate 10 is further raised in angle to lift the back of the user U.

(step 3) the back plate 10 is continuously raised as it is, and the knee plate 50 starts to descend.

(step 4) when the back plate 10 reaches the maximum angle, the knee plate 50 is set to 0 °.

Thus, by performing the control as in steps 1 to 4, the lumbar support 30 can be lifted while suppressing the displacement and the pressing, and therefore the sitting posture of the user U is further improved. In addition, the operation of each part may be temporarily stopped in the middle of the step, and the knee bottom plate 50 may not be changed to 0 ° until the back bottom plate 10 finally reaches the maximum angle.

In order to transition the user U from the sleeping posture to the sitting posture, the following procedure is effective.

(step 1) the back plate 10 and the knee plate 50 are simultaneously lifted from the sleeping position.

(step 2) the knee bottom plate 50 is stopped after reaching 20 °, and the back bottom plate 10 is continuously lifted as it is.

(step 3) the knee bottom plate 50 is lowered to 0 ° when the back bottom plate 10 is at 40 °.

(step 4) the back chassis 10 is raised to the maximum angle.

In this way, the user U can have the intention to sit up/rise by setting the knee bottom plate 50 to 0 ° at the stage where the back bottom plate 10 is at the low angle of 40 ° in step 3, and the user U can easily transition to the action of separating bed because the pelvis is raised by the lumbar support 30 and moved easily in step 4. In addition, the exercise may be temporarily stopped at each part in the middle of the step, and the knee bottom plate 50 may not be changed to 0 ° until the back bottom plate 10 finally becomes the maximum angle. The low angle is not limited to 40 °, and may be appropriately changed from about 30 ° to about 50 °.

In addition, such back lifting action of the back chassis 10 may also be operated with a smart phone application. In this case, the operator may be the user U of the bed apparatus 102, or may be a family member of the user U or a person who performs medical care.

Next, the effects of the present embodiment will be described.

According to the present embodiment, as in the first embodiment, when the angle of the backboard 10 is increased, the angle of the lumbar support 30 is also increased, and the lumbar support 30 presses the pelvis Up of the user U. This allows the user U to be guided to the sitting posture with the pelvis Up raised. As a result, the user U can take an appropriate sitting posture in which the pelvis Up is set Up.

In the present embodiment, the back support 20 is pivotably coupled to the lumbar support 30, and the back support 20 itself can be bent. Therefore, the back support 20 is in surface contact with the back chassis 10, and the waist support 30 and the back support 20 can smoothly slide with respect to the back chassis 10. Further, in the case where the back support 20 is provided, the end portion 32 of the lumbar support 30 does not necessarily have to be in contact with the back chassis 10. In this case, as the angle of the back chassis 10 changes, the position of the end portion 32 also changes in conjunction with the back support 20.

Further, in the present embodiment, when the floor device 2 is in the sleeping position, the waist support 30 and the back support 20 are overlapped with the back floor 10, and the whole body has high rigidity, so that the user U can be given a sense of stability. In addition, in the sitting position, the lumbar support 30 is separated from the backboard 10, and the backboard 10 and the lumbar support 30 are bridged by the low-rigidity back support 20. Therefore, the part is deformed by the weight of the user U to improve the feeling of holding, and the displacement and the pressure can be reduced.

In the present embodiment, the knee brace 60 is provided between the knee bottom plate 50 and the foot bottom plate 70, and the knee brace 60 can be bent at a plurality of portions 66 in the bed longitudinal direction. For this purpose, a large arch shape protruding upward can be formed by the knee bottom plate 50, the knee stay 60, and the foot bottom plate 70. Thus, any part of the arch formed by the knee bottom plate 50, the knee brace 60, and the foot bottom plate 70 can be brought into contact with the knee socket of the user U regardless of the length of the user U. As a result, it is not necessary to prepare a plurality of knee bottom plates 50 having different lengths and replace them by users.

(third embodiment)

Next, a third embodiment will be explained.

Fig. 8 is a perspective view showing a bed device according to the present embodiment.

Fig. 9 is an exploded side view showing the floor device according to the present embodiment.

Fig. 10 is a side view showing the floor device according to the present embodiment.

Fig. 11(a) to (c) are side views showing the floor device according to the present embodiment, where (a) shows a case where the angle of the back floor is 0 °, (b) shows a case where the angle of the back floor is 15 °, and (c) shows a case where the angle of the back floor is 30 °.

Fig. 12(a) to (c) are side views showing the floor device according to the present embodiment, where (a) shows a case where the angle of the back floor is 45 °, where (b) shows a case where the angle of the back floor is 60 °, and where (c) shows a case where the angle of the back floor is 75 °.

This embodiment is an example in which the bed device according to the second embodiment is embodied.

As shown in fig. 8 to 10, the bed device 103 according to the present embodiment includes a base frame 130, a frame 131, a headboard 132, a footboard 133, an actuator 134, and a floor device 3.

The base frame 130 is provided on a floor surface and supports the frame 131. The base frame 130 can adjust the height and angle of the frame 131. A head plate 132 is attached to the head-side end of the frame 131. A foot plate 133 is attached to the foot-side end of the frame 131. The frame 131 supports the actuator 134 and the floor device 3. The actuator 134 controls the position and angle of the back plate 10 of the floor device 3 and the angle of the knee floor 50.

The structure of the floor device 3 is the same as that of the floor device 2 according to the second embodiment. The lumbar plate 40 of the floor device 3 is fixed to the frame 131. The back plate 10, the lumbar support 30, the lumbar plate 40, the knee plate 50, and the foot plate 70 may be provided with through holes in the same manner as the back support 20 and the knee support 60. This can improve air permeability and reduce weight.

In addition, the lumbar support 30 may be formed with a groove and a through hole extending in the bed width direction, similarly to the back support 20. Thereby, the lumbar support 30 can also be bent to some extent in the longitudinal direction of the bed. This also allows the lumbar support 30 itself to deform in accordance with the weight of the user U, thereby further improving the feeling of retention.

The back lifting action of the soleplate device 3 in the bed device 103 is the same as that shown in fig. 11(a) -12 (c).

The bed device 103 can be operated by, for example, a hand switch connected to the bed through a cable. The hand switch is provided with a push button for operating the raising and lowering of the frame 131 (and the lumbar support 40) and the raising and lowering of the angles of the back support 10 and the knee support 50. The operator can raise and lower the frame 131 and raise and lower the back plate 10 or the knee plate 50 by operating the push button of the hand switch.

The hand switch may be provided with an interlock button that can operate the back plate 10 and the knee plate 50 together. The operator can operate the back plate 10 and the knee plate 50 with one button by operating the interlock button. The back board 10 and the knee board 50 are operated in conjunction with each other, whereby, for example, a shift or the like can be suppressed, and the burden on the user U in the bed accompanying the bed operation can be reduced. Further, the bed posture optimal for television viewing at dinner or the like can be changed by one touch operation. In contrast, it is possible to return to the bed posture most suitable for bedtime by one touch operation.

Such bed operation may also be achieved by application of a smart phone via a wireless connection. A video screen of a bed posture and a touch operation area simulating an operation button of a hand switch for changing the posture are set in a dedicated application for bed operation. On the image screen of the bed posture, the height of the frame 131 of the bed apparatus 103 and the angles of the back plate 10 and the knee plate 50 are displayed numerically, and the posture of the bed plate viewed from the lateral direction of the bed corresponding to the angles of the back plate 10 and the knee plate 50 is displayed as an image. In the touch operation area, a button image simulating the up-and-down movement of the operation frame 131, the change of the angle of the back plate 10 or the knee plate 50, or the pressing button for operating the interlocking of the back plate 10 and the knee plate 50 is displayed.

The operator can change the angles of the back plate 10 and the knee plate 50 by touching the button images with fingers and operating the raising and lowering of the frame 131 while confirming the movement of the bed on the screen. The touch operation of the button image may be performed by the operator continuously pressing the touch screen to continue the bed operation, but a trigger operation may be employed in which the operation is started (continued) after one touch, the operation is ended (continued) after the next touch, and the operation is restarted (continued) after the touch is performed again.

In addition, a "position memory function" may be provided to store the back lifting angle, the bed height, and the like according to the preference of the user and the degree of assistance required. The stored back lifting angle and bed height are stored in one or more storage areas, and the bed posture can be changed to the back lifting angle and bed height stored in the storage area by one touch by displaying a button corresponding to the storage area on the screen.

In addition, in applications of smart phones used in bed operations, a communication function with a hand-held switch may also be provided. The bed user can press the "paging button" of the hand-held switch to ring a "paging tone" through the application of the smartphone. Wireless connection between a smartphone and a bed on which such a bed operation application is mounted can be realized by a short-range wireless system such as Bluetooth (registered trademark).

In an electric bed such as a nursing bed, it is required to confirm a sleeping posture and a physical state of a user U to be nursed and to safely operate the bed. Therefore, in principle, even when the bed is operated by the application of the smartphone, it is desirable to perform the operation at a short distance to the extent that the operation state of the bed can be directly confirmed,

On the other hand, the electric bed may be operated by the application of a smart phone via a wider public internet (a cellular phone network or the like). However, in this case, in order to ensure the safety of the bed user (user U), it is necessary to take measures such as operating an application of a smartphone while confirming the moving image of the user U and the bed in real time.

Fig. 13 is a flowchart showing an example of a method for controlling the bed device according to the present embodiment.

(step 1) the operation is started by pressing the back lift button of the hand switch. (S1)

(step 2) the angle of the back chassis 10 is increased. (S2)

(step 3) the lumbar support 30 starts to slide. Alternatively, the angle of the lumbar support 30 is increased. The angle can also be increased simultaneously with the sliding. (S3)

(step 4) it is determined whether the angle of the back chassis 10 is the maximum. (S4)

(step 5) if the angle of the back chassis 10 is the maximum, the operation of the back chassis 10 is stopped. (S5)

(step 6) the pressing operation of the back lift button of the hand switch is ended. (S6)

(step 7) if the angle of the back chassis 10 is not the maximum in step 4, the pressing operation of the back lift button of the hand switch is continued. (S7)

(step 8) the angle of the back chassis 10 is increased. (S8)

(step 9) the sliding of the lumbar support 30 is continued. Alternatively, the angle of the lumbar support 30 is continuously increased. The angle can also be increased simultaneously with the sliding. Deflection may also occur in the lumbar support 30 and the back support 20. (S9)

By this step, the pelvis Up of the user U is pressed by the lumbar support 30, and the pelvis Up can be raised.

The advantage of the present embodiment of creating the overlapping portion of the back chassis 10 and the lumbar support 30 is as follows.

(1) There are several categories of back lifting actions. The lumbar support 30 ascends together with the back lift while rotating along the rotation axis.

The back chassis 10 does not come off the lumbar support 30.

The length of the lumbar support 30 that does not fall off due to the movement of the backboard 10 can be determined according to the posture of the bed when it is flat.

(2) When the length of the back bottom plate 10 in the longitudinal direction is determined, the inclination and waist angle of the waist support 30 can be uniquely determined by the length of the waist support 30 in the bed longitudinal direction in accordance with the length. The degree of freedom of design is increased.

(3) On the other hand, when the length of the lumbar support 30 in the longitudinal direction is predetermined, the back plate 10 may overlap the back support 20 when the back plate 10 is farthest from the lumbar support 30 according to the movement of the back plate 10. The disadvantage that the length of the back chassis 10 in the longitudinal direction becomes unnecessarily large can be eliminated.

The configuration, operation, and effects other than those described above in the present embodiment are the same as those in the second embodiment.

The above embodiments are examples embodying the present invention, and the present invention is not limited to these embodiments. For example, in the above embodiments, a technique of adding, removing, or changing some of the components is also included in the present invention.

Description of the symbols

1. 2, 3: floor device

10: back bottom plate

10 a: upper surface of

10 b: lower surface

11: end part

13. 14: rod

20: back support

20 a: upper surface of

20 b: lower surface

21. 22: end part

24: trough

25. 26: in part

27: through hole

30: waist support

31. 32: end part

40: waist bottom board

41. 42: end part

43: sleeping position display label

50. 50L, 50S: knee bottom plate

51. 52: end part

60: knee support

60 a: upper surface of

60 b: lower surface

61. 62: end part

64: trough

65. 66: in part

67: through hole

70: foot bottom plate

71: end part

80: mattress

102. 103: bed device

120: frame structure

130: base frame

131: frame structure

132: head board

133: foot board

134: actuator device

201. 202: floor device

U, US, UT: user's hand

Ub: back of the body

Uk: knee

And (3) Up: pelvis