WO2007055051A1

WO2007055051A1 - Bed for nursing care

Info

Publication number: WO2007055051A1
Application number: PCT/JP2006/314462
Authority: WO
Inventors: Michihiro Adachi
Original assignee: Road Wide Co., Ltd.
Priority date: 2005-11-08
Filing date: 2006-07-21
Publication date: 2007-05-18
Also published as: JP2007130055A; JP4012917B2

Abstract

[PROBLEMS] To provide a simple nursing care bed enabling a carer to take an easy position to care a person to be cared and also enabling the person to be cared to take a position in which they stand up by their own without assistance by the carer. [MEANS FOR SOLVING THE PROBLEMS] A floor plate frame (3) is installed on an upper portion of a lower frame (1) with a liftable frame (2) placed in between. The floor plate frame (3) has a center rest part (31) for supporting the hip portion of a user, an upper body rest part (32) for supporting the upper half of the body of the user and changing the position of the user from a lying position to a standing position in conjunction with lowering movement of the frame (2), and a flexible lower leg rest part (33) for supporting the lower leg part of the user. The frame (2) is provided with a slide frame (6) moving from a lower position of the lower leg rest part (33) to the center rest part (31) side in conjunction with the lowering movement of the frame (2). The lower frame (1) has a guide rail (12). The guide rail (12) works such that, when the slide frame (6) is moved to the center rest part (31) side in conjunction with the lowering movement of the frame (2), the rail guides a forward end part of the lower leg rest part (33) to the lower side of the center rest part (31) while bending the lower leg rest part.

Description

Specification

Nursing bed

Technical field

[0001] The present invention relates to a care bed mainly for a care recipient such as a disabled person or a sick elderly person, and in particular, the care recipient (user) walks independently to restore physical function. It relates to nursing beds that support this.

Background art

[0002] In general, people with disabilities, sick elderly people, and inpatients after surgery are forced to live on the floor. However, as bedridden time increases, physical function declines and muscle strength increases. Walking training is said to be extremely effective in restoring weakness and stimulating the brain.

[0003] However, a person who has a major functional disorder cannot get up by himself! Moreover, he / she needs to be cared for by relatives and professional caregivers during meals, excretion and bathing.

[0004] Conventionally, for such care recipients, a care lift for moving a care recipient to the position of a wheelchair chair beside the bed, or a care bed having a reclining function, etc. The various nursing care devices have been put into practical use.

[0005] In particular, as a care bed that reduces the burden when a person requiring care stands up, a bed frame that can be folded including a back frame, a seat frame, and a crus frame is provided. It is known that the state power of a person changes to a bent state and the feet of the care recipient land on the bent state (for example, Patent Document 1).

[0006] Further, a side frame that can be moved up and down is provided on the base frame, and a slide frame is inserted into each of the head side and the foot side of the side frame, and on the bed floor surface formed by the slide frame and the side frame. In addition, there is known a portable nursing bed that is provided with a back-raising frame, a first knee-raising frame, and a second knee-raising frame that are hinged to be used as a sofa (for example, Patent Document 2).

[0007] Furthermore, a slip means is provided on the upper part of the bed body, and a sleeping device such as a mattress that a care recipient needs to lie can be moved in the longitudinal direction of the bed via the slip means. A bed is known (for example, Patent Document 3).

[0008] Patent Document 1: Japanese Utility Model Publication No. 6-64635

Patent Document 2: JP 2001-198165 A

Patent Document 3: Japanese Patent Laid-Open No. 2003-655

Disclosure of the invention

Problems to be solved by the invention

[0009] In spite of this, the bed for the care is usually set to have a floor height higher than that of a normal bed in order to reduce the burden of care for the caregiver. If the foot lands just by folding the floor frame body, the height of the floor frame body in the flat state will be low, so care should be taken when lifting the person requiring care or changing the home. There is a problem that people are forced to take an unreasonable posture.

[0010] Further, according to Patent Document 1, since the lower leg frame bends at a right angle to the horizontal seat frame that supports the buttocks of the care recipient, when the care recipient stands up, The body's center of gravity lies on the seat frame and the legs are not comfortable, and you cannot stand up without the help of a caregiver!

[0011] On the other hand, according to the nursing bed of Patent Document 2, the bed floor can be lifted and lowered so that it can be used as a sofa. Bed force Conversion to a sofa is performed automatically. As for the side frame force, the foot side slide frame is pulled out, and when the back frame is raised in this state, it is slid to the foot side. Therefore, since the sofa is configured so that the care recipient can sit with his feet down, the feet of the care recipient do not land, and even if they land, the landing position is forward of the second knee-lift frame. Therefore, care recipients sitting on the first knee-lifting frame cannot stand up on their own as in Patent Document 1.

[0012] Further, the care bed of Patent Document 3 does not have an elevating function, and the height that the care recipient needs to lie down is constant. When the height is set low, Disadvantage that the caregiver is forced to take an unreasonable posture when caring for a caregiver who is lying down, and if the height is set high, the caregiver cannot sit on the bed even if he sits on the bed Have

[0013] Note that in Patent Document 3, the feet land under the bed while the upper body of the care recipient is raised, but this involves manually raising one half of the bedclothes. The physical burden on the caregiver is large, and the force is too narrow because the laying tool that lands the feet of the care recipient needs to slide greatly toward the caregiver's foot along the sliding means. There is a risk that the feet of the care recipient may hit the indoor wall surface before landing.

[0014] The present invention has been made in view of the circumstances as described above, and its main purpose is that a caregiver can care for a caregiver in a recumbent state in an easy posture, and further, in a narrow room. The purpose is to provide a simple nursing bed that can be placed in a position where the care recipient needs to stand up without assistance from the caregiver.

Means for solving the problem

In order to achieve the above object, the present invention

(1) A nursing bed in which a floor board frame is provided on an upper part of a lower frame through a base frame that is moved up and down while maintaining a horizontal state by transmission power of a driving source force, and the floor board frame is one end of the base frame. A central rest part that supports the user's buttocks, and supports the user's upper body connected to one end of the central rest part. An upper body rest part to be converted into a lower leg part and a bendable lower leg rest part that supports the user's lower leg part connected to the other end side of the central rest part. A slide frame that moves from the lower position of the lower leg rest to the center rest is linked to the lowering movement of the underframe to allow bending to the frame, and the lower frame is lowered by the lower frame. Slice in conjunction with movement A guide rail is provided to guide the movement of the lower end of the lower leg rest to the lower side of the central rest while bending the lower leg when the lower position of the lower leg rest moves toward the central rest. .

(2) Also, in the nursing bed as in (1), guide rails are fixed to the inner wall surfaces on both sides of the lower frame, and the guides are provided on both sides in the width direction of the lower leg rest. A rolling roller is provided in rolling contact with the rail. [0017] (3) In addition, it is characterized in that a swing arm is provided that connects the central rest portion and the slide frame so that the upper leg portion of the user can be pushed up during the descent operation of the underframe.

[0018] (4) Also, in the nursing bed as in (1) and (2), the part between the central rest part and the slide frame so that the upper leg part of the user is pushed up during the descent operation of the underframe The swing arm is provided with a long hole whose length is adjustable, and a shaft portion that is passed through the long hole is attached to the slide frame.

[0019] (5) Further, in the nursing bed as in (1) and (2), a pressure roller is provided at the tip of the slide frame, and a protrusion that is supported by the pressure roller on the bottom surface of the lower leg rest portion. Is provided.

[0020] (6) Further, in the nursing bed as in (1) and (2), the lower frame and the base frame are connected by a plurality of parallel links.

The invention's effect

[0021] According to the present invention, since the frame can be raised and lowered, the raising requires the care recipient who is the bed user to lie down on a high position, while changing clothes and sweating the body. Talking can be done in a comfortable posture without the caregiver bending down. This can reduce the physical burden of the caregiver.

[0022] Further, in conjunction with the descent operation of the underframe, the force that raises the upper body rest part causes the slide frame to retreat downward from the lower leg rest part, and the bending of the lower leg rest part is allowed. Therefore, while setting the position of the user (care recipient) to a high position, when the user gets up, he / she does not overhang the user's feet and the force on the lower You can land within the installation area.

[0023] In particular, the lower leg rest is bent to the lower frame side along the guide rail, and the distal end is guided to move to the lower side of the central rest, so that the lower leg rest is a stepping foot for the user. Therefore, the user can bend the lower limbs at an acute angle and land the foot at a position below the central rest. Therefore, the user can stand up without help from the caregiver and actively perform walking training to recover the decline in physical function early.

[0024] In addition, the standing movement of the upper body rest and the movement of the slide frame are linked to the lowering movement of the underframe. Therefore, low cost can be achieved without using a large number of motors.

[0025] Since the guide rails are fixed to the inner wall surfaces on both sides of the lower frame, and both sides of the lower leg rest are provided with rolling rollers that roll on and contact the guide rail, the lower leg rest The portion can be smoothly bent along the guide rail.

[0026] In addition, a swing arm that connects the center rest part and the slide frame is provided to allow the user's upper leg to be pushed up during the descent of the underframe. In addition, the user's buttocks slide and move toward the lower leg rest.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail with reference to the drawings. First, a basic configuration of a nursing bed according to the present invention will be described with reference to FIG. 1. Reference numeral 1 denotes a lower frame including a pair of left and right side plates 11, and is supported in a horizontal state on an upper portion thereof. A floor board frame 3 is provided to support the user M in a lying state via a platform frame 2 that can be raised and lowered. Note that a flexible futon 4 such as a mattress is laid on the floor board frame 3, and this is fixed to the floor board frame 3 with a belt or the like.

[0028] Here, the lower frame 1 and the frame 2 are connected to each other by links 5A, 5B, and 5C. The links 5A to 5C are connected to the lower frame 1 and the frame 2 PI. , P2 are all equal distances, and the sections of nodes PI and P2 are both parallel, so that frame 2 can move up and down while moving horizontally (up and down). A parallel crank mechanism is constructed.

[0029] It should be noted that the links 5B and 5C are formed with arm portions 5D and 5E extending backward from the intermediate partial force of the joint points PI and P2, and the ends of these arm portions 5D and 5E are parallel to each other. , 5G is connected to the slide frame 6.

[0030] The slide frame 6 is a member attached to the inside of the frame 2, which has a guide roller 61 for movement on both side surfaces, and is movable along the longitudinal direction of the frame 2. In addition, a pressure contact roller 62 that supports the rear side of the floor board frame 3 is provided at the front end thereof.

[0031] On the other hand, the floorboard frame 3 is located on one end of the base frame 2 and supports a center rest 31 that supports the buttocks of the user M, and the upper half of the user M connected to one end of the center rest ( Upper body rest part 32 that supports the head and back) and the lower leg of user M connected to the other end of the central rest part The upper body rest portion 32 is fixed to the long side portion of the L-shaped link 5C. A support leg 34 projects from the bottom of one end of the upper body rest 32 to reduce the load acting on the link 5C, and the support leg 34 is in close contact with the top of one end of the frame 2. is there.

[0032] Further, the central rest part 31 and the upper body rest part 32 and the central rest part 31 and the lower leg rest part 33 are connected to each other via hinges so that they can be bent. The central rest part 31 and the lower leg rest part 3 3 A roller 35 supported by a trapezoidal receiving seat 21A formed on one end portion of the base frame 2 is attached to the shaft portion of the hinge connecting the two.

[0033] In particular, the central rest portion 31 is connected to the slide frame 6 by the swing arm 7 at the connecting portion with the crus rest portion 33. The swing arm 7 is in the process of lowering the frame 2 Then, the central rest 31 is swung up and down around the connecting portion with the upper body rest 32 so that the upper leg of the user M is temporarily pushed up. A shaft portion 63 for connecting the swing arm 7 is attached to the slide frame 6, and a long hole 71 through which the shaft portion 63 is passed is formed in the swing arm 7. Here, the length of the long hole 71 can be adjusted by fitting a piece (not shown), etc., so that the swinging motion amount of the swingarm 7 during the lowering motion of the frame 2 and the user M It is configured to change the amount of the upper thighs as needed.

[0034] Further, the lower leg rest portion 33 can be bent by hinge-joining a plurality of (two in the illustrated example) plate members 33A and 33B, and is provided on the lower frame 1 on both the left and right sides. A rolling roller 36 is attached to correspond to the circular arc guide rail 12. Further, a ridge 37 extending to one end of the bottom surface of the central rest portion 31 is formed on the bottom surface of the crus rest portion 33, and the ridge 37 is supported by the pressure roller 62.

Here, 8 is a drive source (motor with a speed reducer) fixed to one end in the longitudinal direction of the lower frame 1, and 81 is a screw shaft that is rotationally driven forward and reverse by the drive source 8. The screw shaft 81 is rotatably provided at the inner central portion along the longitudinal direction of the lower frame 1, and a slide nut 82 screwed to the screw shaft 81 is connected to the upper body rest portion 32 constituting the floor board frame via the link 5H. It will be done.

[0036] However, when the slide nut 82 moves to the left in FIG. The floor frame 3 is pushed to the left in FIG. 1 through the link 5H, and the node P2 between the link and the frame 2 is pushed to the left in FIG. 1 through the link 5C. The lower frame 2 is lowered while 5C is pivoted counterclockwise in Fig. 1 around the node P1 with the lower frame 1. At this time, the upper body rest portion 32 coupled to the link 5C by the turning motion is converted into the standing posture force through the link 5F, 5G connected to the arm portions 5D, 5E of the links 5B, 5C. The slide frame 6 is pulled to the right in FIG.

[0037] As a result, the slide frame 6 does not support the crus rest 33 via the pressure roller 62. The lower position force of the crus rest 33 also moves toward the central rest 31, and the pressure roller 62 is moved to the plate 33A. , 33B, the tip side (plate material 33A) of the lower leg rest portion 33 bends and hangs down to the lower frame 1 side due to its own weight.

[0038] At this stage, the underframe 2 is in the process of descending, and the descent operation is continued. For this reason, the rolling roller 36 at the tip of the bent leg rest portion 33 rolls on and comes into contact with the guide rail 12, While the lower leg rest portion 33 is bent by the guide rail 12, the distal end portion of the lower leg rest portion is moved and guided to the lower side of the central rest portion 31.

[0039] During the lowering operation of the underframe 2, the central rest portion 31 connected to the slide frame 6 by the swing arm 7 is moved as described above by the movement of the slide frame 6 interlocked therewith. It swings up and down around the connecting part with the part 32. According to this, since the upper leg of user M is pushed up as shown in Fig. 2, the standing movement of upper body rest 32 prevents user M's buttocks from sliding toward the lower leg rest 33. can do.

Next, FIG. 3 shows a state in which the above-described frame lowering operation has been completed. As is apparent from this figure, according to the nursing bed according to the present invention, the floor board frame 3 is bent by the lowering of the underframe 2 to form a chair shape with the central rest 31 as the seating surface. M is allowed to bend the lower limbs (legs) at an acute angle and land the foot at a position below the central rest 31. For this reason, the user M moves the center of gravity of the body forward and the caregiver's It is possible to stand up without assistance.

[0041] In addition, in the chair-shaped state shown in FIG. On the other hand, if the drive source 8 is driven in the above-mentioned reverse direction in the state of FIG. Therefore, the bed shape shown in Fig. 1 is set so that the height of the floorboard frame 3 is 60-70cm. The caregiver can perform a change of posture and massage of the lying user M in a comfortable posture.

[0042] Next, a specific structure of each member constituting the nursing bed as described above will be described. First, the structure of the lower frame 1 will be described with reference to FIGS. 4 to 5. The lower frame 1 is configured by laying a plurality of connecting shafts 13 between a pair of left and right side plates 11 and 11. A bracket 14 is fixed to the center of the predetermined connecting shaft 13, and a bearing 15 that rotatably supports the tip of the screw shaft 81 is fixed to the bracket 14. Further, the guide rail 12 is fixed to the inner wall surfaces of the side plates 11 and 11 at one end side of the lower frame 1 (the rear side of the user's feet). In addition, a hole formed at a node P1 with the links 5A to 5C shown in FIG.

Next, the structure of the frame 2 will be described with reference to FIGS. 6 to 7. The frame 2 is configured by connecting a pair of left and right beams 21 with a girder 22. In this example, the beam 21 is made of channel steel having a U-shaped cross section, and the receiving seat 21A is fixed on one end thereof. In addition, the beam 21 has a hole formed at the node P2 with the links 5A to 5C shown in FIG. 1, and a guide roller 61 provided on the side surface of the slide frame 6 is supported in the beam 21 so as to be able to roll. It will be done.

[0044] As shown in Figs. 8 to 9, the slide frame 6 is a frame having a pair of left and right inner wall plates 64 and an outer wall plate 65 provided on the outside thereof, and the guide roller 61 is provided on the outer wall plate 65. In addition, the pressure roller 62 is provided at one end of the inner wall plate 64. In addition, a shaft 63 is installed between the inner wall plate 64 and the outer wall plate 65 to pass through the long hole 71 of the swing arm shown in FIG. A pin 66 for connecting one end of each of the links 5F and 5G is projected. In FIGS. 8 to 9, reference numeral 67 denotes a reinforcing plate constructed between a pair of left and right inner wall plates 64,64.

Next, the structure of the floorboard frame 3 will be described with reference to FIGS. 10 to 12. The central rest part 31, the upper body rest part 32, and the lower leg rest part 33 are each made of a flat steel plate, of which the upper body The rest part 32 is wider than the central rest part 31 and the lower leg rest part 33, and its bottom surface A bracket 38 for connecting one end of the link 5H shown in FIG. 1 is formed in the central portion. Further, two ridges 37 are formed in parallel corresponding to the pressure roller 62 of the slide frame 6. 10 and 11, HI is a hinge connecting the central rest 31 and the upper body rest 32, H2 is a hinge connecting the central rest 31 and the lower leg rest 33, and H3 is a lower leg rest. The roller 35 is attached to the central axis of the hinge H2, and the guide rail 12 is attached to the central axis of the hinge H3 and the shaft fixed to the end surface of the plate 33A. A rolling roller 36 that is in rolling contact with is attached.

As described above, the present invention has been described. However, such a nursing bed is not limited to the above-described configuration. For example, the lower leg rest portion 33 includes a plurality of belt-like or rod-like members connected in parallel. It may be in the form of a shape. In addition, a pan / tilt-raft type elevator may be used as a means for raising and lowering the frame 2. Even in this case, the slide frame 6 and the upper body rest 32 are used for the movement of the frame 2 by using a link mechanism. Can be linked.

Brief Description of Drawings

[0047] [FIG. 1] Side view showing the basic structure of a nursing bed according to the present invention (state when the frame is raised) [FIG. 2] Explanatory drawing showing the state during the descent operation of the frame

[Fig. 3] Explanatory drawing showing the state where the underframe is lowered

[Fig. 4] Side view showing one end of the lower frame

[Figure 5] Front view of lower frame

[Figure 6] Side view of underframe

[Figure 7] Front view of underframe

[Figure 8] Plan view of slide frame

[Fig. 9] Front view of the slide frame partially cut away

[Figure 10] Side view of floorboard frame

[Figure 11] Floor plan of floorboard frame

[Figure 12] Front view of floorboard frame

Explanation of symbols

[0048] 1 Lower frame 2 Guide rail Underframe Floor board frame 1 Center rest 2 Upper body rest 3 Lower leg rest 6 Rolling roller 7 Convex futon

A ~ 5C Link Slide frame 1 Guide roller 2 Pressure roller Swing arm

Claims

The scope of the claims

[1] A nursing bed provided with a floor board frame on the upper part of the lower frame through a base frame that is moved up and down while maintaining the horizontal shape by the transmission power of the driving power.

The floorboard frame is located on one end of the underframe and supports a user's buttocks, supports a user's buttocks, supports the user's upper body connected to one end of the center rest, and moves down the underframe An upper body rest portion that converts from a lying posture to a standing posture in conjunction with the body, and a bendable lower leg rest portion that is connected to the other end side of the central rest portion and supports the user's lower leg portion,

The frame is attached with a slide frame that moves from the lower position of the lower leg rest to the center rest in conjunction with the lowering movement of the lower frame to allow the lower leg rest to bend toward the lower frame. And

When the slide frame moves to the center rest side in conjunction with the lowering movement of the underframe, the lower frame is bent at the lower leg rest while the tip is below the center rest. A nursing bed characterized in that a guide rail is provided to guide movement to the side.

[2] The guide rail is fixed to both inner wall surfaces of the lower frame opposite to each other, and rolling rollers are provided on both sides in the width direction of the crus rest portion to make rolling contact with the guide rail. The nursing bed according to claim 1.

[3] The device according to claim 1 or 2, further comprising a swing arm that connects a portion of the center rest portion and the slide frame so that the user's upper leg is pushed up during the descent operation of the underframe. Nursing bed.

[4] A swing arm that connects the center rest and the slide frame is provided so that the user's upper leg can be pushed up during the descent of the underframe, and the length of the swing arm is adjustable. 3. The care bed according to claim 1, wherein a hole is formed, and a shaft portion that is passed through the elongated hole is attached to the slide frame.

[5] The bed for care according to claim 1 or 2, wherein a pressure roller is provided at the tip of the slide frame, and a protrusion supported by the pressure roller is provided on the bottom surface of the crus rest. . The nursing bed according to claim 1 or 2, wherein the lower frame and the underframe are connected by a plurality of parallel links.