JP2006212112A - Bed for care - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple bed for care, which enables a caregiver to perform caring in a comfortable posture in the state that a person to be cared lies down and enables the person to be cared to stand up by himself without help by the caregiver. <P>SOLUTION: For the bed for care, a bed body 3 is supported so as to be elevated and lowered horizontally by a lower frame 1. The bed for care is provided with a center rest part 6 attached to the bed body 3 for supporting the buttocks of a user, an upper body rest part 5 for supporting the upper half body of the user on one end side of the center rest part, to be converted from a brought-down posture to a raised posture in linkage with the lowering operation of the bed body 3, and a lower thigh rest part 7 for supporting the lower thigh part of the user on the other end side of the center rest part 6. The lower thigh rest part 7 is provided with a slide plate A slid under the center rest part 6 in linkage with the lowering operation of the bed body 3, and by the slide of the slide plate 7A under the center rest part 6, the user is allowed to bend the lower limbs at an acute angle and ground the feet below the center rest part 6. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a care bed mainly for a care recipient such as a disabled person or a sickly elderly person, and particularly relates to a care bed that assists the care recipient to walk independently to restore physical function.

  In general, people with disabilities and sickly elderly people, post-operative hospitalized patients, etc. are forced to live on the floor, but as bedridden time increases, physical function declines, so the decline in muscle strength is recovered. It is said that walking training is extremely effective for stimulating the cerebrum.

  However, those who have a major functional disorder cannot get up on their own, and they need to be cared for by their relatives and specialized caregivers during meals, excretion and bathing.

  Conventionally, for such care recipients, various care aids such as a care lift for moving the care recipient to the position of a bathtub or a wheelchair placed beside the bed or a care bed with a reclining function Equipment has been put into practical use.

  In particular, as a nursing bed that reduces the burden when a care recipient needs to stand up, a bed frame that can be folded including a back frame, a seat frame, and a crus frame is provided, and the floor frame body is in a flat state. It is known that the leg of the care recipient is landed in a bent state (for example, Patent Document 1).

Japanese Utility Model Publication No. 6-64635

  However, in general, the bed for a caregiver is set to have a height higher than that of a normal bed in order to reduce a caregiver's burden on the caregiver, but only by folding the floor frame body as in Patent Document 1. When the foot is landing, the height of the floor frame body in the flat state is low, and there is a problem that the caregiver is forced to take an unreasonable posture when holding the care recipient or changing diapers.

  In addition, since the lower leg frame bends at a right angle to the horizontal seat frame that supports the buttocks of the care recipient, the center of gravity of the body is on the seat frame when the care recipient stands up. You cannot stand up without the help of a caregiver.

  Furthermore, although there is no clear description in Patent Document 1, this type of bed has a drawback in that the rotational movement of the back frame and the lower leg frame is individually controlled by a motor, so that the cost is increased.

  The present invention has been made in view of the circumstances as described above, and its main purpose is that the caregiver can perform care in an easy posture while the care recipient is lying down, and there is no assistance from the caregiver. It is another object of the present invention to provide a simple bed for a caregiver that can be raised by a care recipient.

  In order to achieve the above object, the present invention is a care bed supported by a lower frame so that the bed main body can be moved up and down horizontally, and a central rest portion attached to the bed main body and supporting a user's buttocks. An upper body rest portion that supports the upper body of the user at one end side of the central rest portion and converts from a lying posture to a standing posture in conjunction with the lowering motion of the bed body, and at the other end side of the central rest portion A lower leg rest that supports the user's lower leg, the lower leg rest allowing the user to fold the lower leg into an acute angle and land the foot at a position below the central rest. It has a slide plate which slides below the central rest portion in conjunction with the lowering operation of the bed body.

  In addition, the lower leg rest part includes a flexible upper board that is connected to the central rest part at the upper part of the slide board, and the lower frame has one end of the upper board placed below the slide board on the side of the central rest part when the bed body is lowered. It is characterized in that an attraction means for drawing in is provided.

  Further, the central rest portion includes a rocking plate that swings up and down on the other end side with the one end portion on the upper body rest portion as a fulcrum as the slide plate slides downward, and the bed body is being lowered by the rocking plate. In addition, the user's upper leg is pushed up.

  According to the present invention, since the bed main body can be moved up and down, care is taken for changing clothes and wiping the body while the bed main body is raised and the care recipient who is the bed user is lying on a high position. It can be done in an easy posture without bending your waist. For this reason, the physical burden of the caregiver can be reduced.

  In particular, when the bed body is lowered, the slide plate that forms the lower leg rest part slides below the central rest part while the upper body rest part stands up. Since it is permitted to land the foot at the position, the user (care recipient) can stand up without help from the caregiver. For this reason, the care recipient himself / herself actively contributes to gait training and to recover the decline in physical function early.

  Further, since the standing motion and the sliding plate motion are linked to the lowering motion of the bed main body at the upper body rest portion, the cost can be reduced without using a large number of motors.

  In addition, since the crus rest part is provided with an overlay plate that is arranged on the slide plate, it is possible to form a flat surface without a step, and one end of the overlay plate is below the slide plate when the bed body is lowered Therefore, it is possible to prevent the overlay board from covering the footstep of the user's foot.

  Further, the central rest portion has a swinging plate, and the swinging plate swings up and down with the one end portion on the body rest portion side as a fulcrum by sliding of the slide plate below the central rest portion. Therefore, it is possible to wipe up the danger that the user's buttocks will slide down to the lower leg rest part side by pushing up the upper leg part of the user while the bed body is being lowered.

  Hereinafter, the present invention will be described in detail with reference to the drawings. First, the basic structure of a nursing bed according to the present invention will be described with reference to FIGS. 1 to 5. Reference numeral 1 denotes a lower frame having a concave cross section, and the lower frame 1 has parallel links 2A having equal lengths on both side surfaces. , 2B, and a parallel crank mechanism that supports the bed body 3 in a horizontal state so as to be movable up and down.

  The bed body 3 is also a structure having a concave cross section, and one end of each of the parallel links 2A and 2B is connected to both side surfaces thereof. In particular, the bed body 3 is provided with a floor board 4 so that the body of the user M (care recipient) who needs care is supported by the floor board 4.

  The floor board 4 includes an upper body rest portion 5 that supports the upper body (head and back) of the user, a central rest portion 6 that supports the user's buttocks, and a lower leg rest portion 7 that supports the user's lower leg. Composed. Among these, the central rest portion 6 is integrally attached to the upper portion of the bed main body 3, and the upper body rest portion 5 is connected to one end side of the central rest portion 6 without a step. In this example, the central rest portion 6 is fixed to the bed main body 3, but the nodal point P1 with the upper body rest portion is connected to the bed main body 3, and the other end is vertically moved with the nodal point P1 as a rotation fulcrum. You may make it rock | fluctuate.

  Further, the upper body rest portion 5 is placed on the upper portion of the bed main body 3, and the other end side is swung with the node P1 with the central rest portion as a rotation fulcrum. In particular, the upper body rest portion 5 is connected to the lower frame 1 via an intermediate link 2C provided between the parallel links 2A and 2B on both right and left sides. The swing radius of the intermediate link 2C and the parallel links 2A and 2B are set to be the same. Therefore, when the bed main body 3 moves up and down while maintaining the horizontal state by the swing motion of the parallel links 2A and 2B, The upper body rest portion 5 swings through the link 2C.

  Specifically, the bed main body 3 is in the raised end position and the upper body rest portion 5 is lying down horizontally as shown in FIG. 1, and in this state, the parallel links 2A and 2B are swung counterclockwise in FIG. As the bed main body 3 moves down, the upper body rest portion 5 swings about the node P1 with the central rest portion as a rotation fulcrum in conjunction with the lowering motion, and the figure shows from the lying posture shown in FIG. 2 is converted to the standing posture.

  Incidentally, the upper body rest portion 5 is not limited to being connected to the central rest portion 6, but one end thereof may be pivotally attached to the bed main body 3 in the vicinity of the central rest portion 6, but in this case, the parallel link 2A, It is important to match the swing radius of 2B and the intermediate link 2C. Further, the bed body 3 is at the rising end and the floor board 4 is flat as shown in FIG. 1, but the height of the floor board 4 at this time is set to 60 to 70 cm, and according to this, the floor board 4 is lying down. Caregivers can take care of the user, such as raising the user and changing clothes.

  Here, the raising / lowering operation of the bed main body 3 is performed by using a motor with a speed reducer or the like and directly connecting the drive shaft thereof to any one of the fulcrum shafts P2 to P4 of the parallel links 2A and 2B and the intermediate link 2C. However, when the parallel links 2A and 2B are inclined with respect to the bed main body 3, a large torsional moment acts on the fulcrum axes P2 and P3 of the parallel links from the bed main body 3, and thereby the bed main body 3 In this example, the pair of left and right links 2A and 2A on the upper body rest portion 5 side that does not interfere with the bed main body 3 at the time of lowering are connected by a common fulcrum shaft P2 as shown in FIG. The worm wheel 8 is fixed to the center of the fulcrum shaft P2, the worm 9 is engaged with the worm wheel P2, and the chain 11 is wound between the rotating shaft and the drive shaft of the motor 10. According to this, the bed main body 3 does not drop rapidly, and when the bed main body 3 reaches the rising end and the lowering end, it can be locked. In FIG. 3, the worm 9 and the worm wheel 8 are accommodated in a gear box (not shown), and the gear box is firmly fixed to the bottom of the lower frame 1 with a bolt or the like.

  On the other hand, in FIG. 1, the crus rest part 7 is made into the two-layer structure of the slide board 7A and the upper board 7B distribute | arranged on the upper side. Among these, the slide plate 7A is movable along the longitudinal direction of the bed main body 3, and one end thereof is a pair of left and right rails 12 provided in the bed main body 3 below the central rest portion 6 (FIG. 3). 4), and a guide roller 13 is attached to the other end of the slide plate 7A for folding the upper plate 7B downward.

  In particular, the slide plate 7A and the upper body rest portion 5 are connected by a bending / extending arm 14 including two links 14A and 14B. The bending / extending arm 14 is configured such that two links 14A and 14B can be bent at the position of the node P5, and one link 14A constituting the link 14A is fixed to the center of the back surface of the body rest portion 5 and the other link One end of the link 14B is pivotally attached to the slide plate 7A as a rotation fulcrum P6. Thus, according to the bending / extending arm 14, the slide plate 7 </ b> A can be slid under the central rest portion 6 in conjunction with the lowering operation of the bed body 3.

  That is, when the upper body rest portion 5 changes from the lying posture to the standing posture as described above due to the lowering of the bed body 3, the link 14A follows this and pushes the nodal point P5 with the other link 14B downward. Then, the bending and stretching arm 14 as a whole is bent as shown in FIG.

  In addition, slit-shaped notches 15 and 16 are formed in the bed main body 3 and the slide plate 7A as shown in FIGS. 1, 4, and 5 so as not to hinder the bending operation of the bending / extending arm 14.

  The top plate 7B is a flexible bowl-shaped plate material, one end of which is connected to the center rest portion 6 without a step, and the other end is connected to a wire material 17 such as a wire.

  Here, in the lower frame 1, a winding drum 18 that winds up the linear material 17 as an attracting means for drawing one end of the upper plate 7 </ b> B below the slide plate 7 </ b> A toward the central rest portion 6 when the bed main body 3 is lowered. A motor 19 for rotating this is provided, and when the bed main body 3 is lowered by driving the motor 19, the laying board 7B is drawn into the central rest portion 6 side after the linear material 17 and is wound around the winding drum 18. The configuration is as follows. The motor 19 is rotationally driven in the direction of unwinding the top plate 7B when the bed main body 3 is raised, but the forward / reverse driving thereof is synchronized with a drive source (motor 10 in FIG. 3) for raising and lowering the bed main body 3. Done.

  Thus, in conjunction with the lowering operation of the bed body 3, the slide plate 7A slides below the central rest portion 6, while one end of the top plate 7B is drawn below the slide plate 7A toward the central rest portion 6 and wound. By being wound around the torso 18, the user M bends the lower limb at an acute angle as shown in FIG. 2, and lands the foot on the bottom of the lower frame 1 or the installation surface of the lower frame 1 at a position below the central rest 6. Therefore, the user M can move up the center of gravity of the body forward and can stand up without help from the caregiver. In addition, it is possible to eat in the state shown in FIG.

  In FIG. 4, 20 is a sprocket for winding a chain between the motor 19 and 21 is a seat for supporting the bed body 3 when it reaches the lowering end.

  As described above, the basic structure of the care bed according to the present invention has been described, but a flexible mat (not shown) is provided on each upper surface of the upper body rest portion 5, the central rest portion 6, and the crus rest portion. It is attached. Although a commercially available mattress may be arranged on the floor plate 4, in this case, one end side of the mattress when the slide plate 7A slides below the central rest portion 6 serves as a scaffold for the user. It is preferable that the mattress is separated at the boundary between the central rest portion 6 and the lower leg rest portion 7 so that the mattress on the lower leg rest portion 7 can be removed in advance when the bed body 3 is moved up and down so as not to cover it. . Further, if the lower leg rest portion 7 has a two-layer structure of the slide plate 7A and the upper laying plate 7B as in the above example, it is preferable because the central rest portion 6 and the lower leg rest portion 7 can be connected without any step, but such lower leg rest portion. 7 may be configured only by the slide plate 7A, and a mat may be disposed on the slide plate 7A so as to be removed when the bed body 3 is moved up and down.

  Next, a modification example based on the above-described nursing bed will be described with reference to FIGS. Parts that are the same as in the above example are assigned the same reference numerals, and detailed descriptions thereof are omitted.

  Here, in this example, the center rest portion 6 has a two-layer structure of a fixed plate 6A and a swing plate 6B. The fixed plate 6A is integrally attached to the upper portion of the bed main body 3, and the upper body rest portion 5 is connected to one end side thereof, and the overlay plate 7B is connected to the other end side. In this example, the fixing plate 7A is fixed to the bed main body 3. However, the nodal point P5 with the upper body rest portion 5 is connected to the bed main body 3, and the other end is vertically moved with the nodal point P5 as a rotation fulcrum. You may make it rock | fluctuate. The upper body rest portion 5 is not limited to being connected to the fixed plate 6A, and one end of the upper body rest portion 5 may be pivotally attached to the bed body 3 in the vicinity of the fixed plate 6A.

  On the other hand, the swinging plate 6B is on the fixed plate 6A, one end on the upper body rest portion 5 side is connected to the fixed plate 6A by the hinge 22, and the other end side (one end on the lower leg rest portion 7 side) is swung up and down. It is set to move.

  In particular, one end on the lower leg rest portion 7 side of the swinging plate 6B and the slide plate 7A are connected by the swing arm 23, and the slide plate 7A slides below the central rest portion 6 in conjunction with the lowering operation of the bed body 3. The swing plate 6B swings the other end side up and down with one end (the hinge 22) on the upper body rest 5 side as a rotation fulcrum. According to this, since the upper leg part of the user M sitting on the swinging plate 6B is pushed up as shown in FIG. 7 while the bed body 3 is being lowered, it is used by the standing action of the upper body rest part 5. It is possible to prevent the buttocks of the person M from sliding down to the crus rest 7 side. In this example, a mat (not shown) is arranged on the upper surface of the swing plate 6B.

  Here, the swing arm 23 shifts from the rising operation to the lying down operation while the bed main body 3 is being lowered, and when the bed main body 3 has been lowered (in this example, the upper body rest portion 5 is vertical), the swing plate 6B. However, as shown in FIG. 8, it overlaps with the fixing plate 6A so as to be orthogonal to the upper body rest portion 5.

  The swing plate 6B has the maximum inclination when the swing arm 23 stands upright (when the upper body rest portion 5 is inclined 45 degrees in this example). In this example, the swing arm 23 is on both sides of the link 14B constituting the bending / extending arm 14, and one end of each is pivotally attached to the slide plate 7A. The swing plate 23A, the upper plate 7B, and the fixed plate 6A are provided with a swing arm. Although a slit (not shown) is formed so as not to hinder the operation of 23, the top plate 7B may be omitted or may be connected to the swing plate 6B.

Side view showing the basic structure of a nursing bed according to the present invention (state when the bed main body is raised) Explanatory drawing which shows the state which the bed main body fell Partial sectional view of the bed Partial sectional view of the bed Top view of the bed body The side view which shows the example of a change of the bed for care which concerns on this invention (The state at the time of the bed main body raise) Explanatory drawing which shows the state in which the bed body is descending Explanatory drawing which shows the state which the bed main body fell

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lower frame 2A, 2B Parallel link 2C Middle link 3 Bed main body 4 Floor board 5 Upper body rest part 6 Central rest part 6A Fixing board 6B Oscillation board 7 Lower leg rest part 7A Slide board 7B Overlay board 10 Motor 14 Bending arm 17 Linear Material 18 Winding drum 19 Motor 23 Swing arm

Claims (3)

  It is a nursing bed supported by a lower frame so that the bed body can be moved up and down horizontally, and is used on one end side of the center rest portion that is attached to the bed body and supports the user's buttocks An upper body rest portion that supports the upper body of the user and converts the lying posture into a standing posture in conjunction with the lowering motion of the bed body, and the lower leg that supports the user's lower leg at the other end of the central rest portion The lower leg rest portion in conjunction with the lowering motion of the bed body in order to allow the user to bend the lower limb at an acute angle and land the foot at a position below the central rest portion. A nursing bed characterized by having a slide plate that slides below the central rest portion.   The lower leg rest includes a flexible top plate that connects to the center rest at the top of the slide plate, and the lower frame attracts one end of the top plate to the center rest side below the slide plate when the bed body is lowered. A nursing bed according to claim 1, characterized in that means are provided. The central rest part includes a swinging plate that swings up and down on the other end side with one end on the upper body rest side as a fulcrum by sliding the sliding plate downward. The nursing bed according to claim 1, wherein the upper leg of the person is pushed up.

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