JP2001340394A - Nursing care bed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a nursing care bed which can reduce the fatigue of nursing care personnel and, can eliminate the occurrence of lumbagos, etc., to the utmost. SOLUTION: This nursing care bed comprises an elevating/lowering frame 3 which is installed to a seat frame 1 in a state where the frame 3 can be elevated and lowered by means of an appropriate elevating/lowering means 2, a sliding frame 18 which is provided from the waist section to a back rest side on the elevating/lowering frame 3 in a state where the frame 18 can slide to a position where the frame 18 stays in the elevating/lowering frame 3 and another position where the frame 18 is protruded outward from one side of the frame 3 under the guidance of an appropriate guide member 17, and a waist section mat frame 22 installed to the sliding frame 18. The care bed also comprises a back rest mat frame 24 having the joint section of an undulating fulcrum on the waist section mat frame 22 side, a leg section mat frame 25 provided from the waist section mat frame 24 to the foot side on the elevating/lowering frame 3, and an appropriate undulatively driving means 33 which is installed to the sliding frame 18 to undulatively rotate the back rest mat frame 24. In addition, the bed also comprises an arm 41 which is extended in the protruding direction of the sliding frame 18 from the lower surface of the seat frame 1 and a grounding plate attached to the front end of the arm 41.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a care bed.

[0002]

2. Description of the Related Art Beds for the elderly and those who need nursing care are disclosed in JP-A-9-122186 and Japanese Utility Model Registration No. 3038378.

[0003]

However, in both of the nursing beds, the raised backrest and the seat are pulled out sideways so that the legs are grounded or hung down, and the legs of the beds are lowered. The backrest having the waist and the pillow cannot be moved up and down at a constant height.

[0004] Then, when a person in need of nursing care in a posture leaning on the backrest portion raised and a person in need thereof stand up, the caregiver puts his hand in the back of the head or neck of the person in need of care.
And will cause it to move forward.

At this time, the degree to which the caregiver bends down is
The larger the height, the larger it becomes, and the cause of low back pain, wrists, arms, etc. become fatigued.

[0006] This factor is due to the fact that the back portion having the leg, the waist, and the pillow of the bed cannot be adjusted to a certain height, that is, cannot be adjusted up and down.

[0007] Further, the lifting of the opposite side of the bed due to the unbalanced load generated by pulling out the waist portion and the backrest portion is prevented by pulling out the auxiliary wheel (the latter prior art) together with the waist portion.

[0008] However, if the bed arrangement floor is soft (when a rug is present), the smooth rotation of the auxiliary wheels is hindered and drawbacks require a great deal of labor (similarly in the case of pushing back). .

SUMMARY OF THE INVENTION It is an object of the present invention to remarkably reduce the fatigue of a caregiver and minimize the occurrence of back pain and the like.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a lifting frame provided on a seat frame so as to be adjustable up and down through appropriate lifting means, and a back portion from the waist on the lifting frame. A slide frame provided so as to be guided and guided by appropriate guide means at a position that fits in the elevating frame and a position protruding outward in a part of the leaning side, and a waist mat provided on the slide frame A backrest mat frame having an articulation of an undulating fulcrum on the frame and the waist mat frame side, a leg mat frame provided on the foot side from the waist mat frame on the elevating frame, and the backrest mat on the slide frame Appropriate undulation drive means provided to rotate the frame up and down, an arm extending from the lower surface of the seat frame in the direction in which the slide frame protrudes, and a ground plate provided at the tip of this arm To adopt a configuration that consists of.

[0011]

Embodiments of the present invention will be described with reference to the accompanying drawings.

In the embodiment of the present invention, FIGS.
As shown in (1), on the seat frame 1, an elevating frame 3 that can be adjusted up and down via an appropriate elevating means 2 is provided.

The elevating means 2 comprises a seat frame 1 in the illustrated case.
Two rotating shafts 4, 4, each of which is rotatably supported at both ends between both sides of the head side and the leg side, and the two rotating shafts 4,
A first link 5 having a distal end fixed to each end of the first link 4 and projecting obliquely downward from the head side, a lower end rotatably connected to the tip of each first link 5 via a pin 6, and a lifting frame 3, a second link 7 having upper ends attached to both sides thereof, a projecting piece 8 having an upper end fixed at an intermediate position between the rotating shafts 4 and 4 and projecting obliquely downward on the leg side, and a pin A connecting shaft 10 rotatably connected at both ends via a connecting member 9 and a protruding piece 11 projecting obliquely upward on the head side with a lower end fixed at the middle of the rotating shaft 4 on the leg side.
And a first motor 13 whose end is tiltably supported via a pin 12, and a female screw 14 which is rotated by the reversible operation of the first motor 13, and the tip is connected to the protruding piece 11 via a pin 15. Male screw 16 that slides forward and backward
When the male screw 16 is slid rightward in FIG. 1 by the normal rotation of the first motor 13, the protruding piece 11 rotates in the upright direction.

Then, the rotation of the rotating shaft 4 having the protruding piece 11 transmits the rotation to the rotating shaft 4 having no protruding piece 11 via the connecting shaft 10 connecting the protruding pieces 8 to rotate in the upright direction. First
The lifting frame 3 is raised (as shown in FIG. 3) by the links 5, 5 and the second link 7 rising via the first link 5.

When lowering the lifting frame 3, the first
What is necessary is just to drive the motor 13 in reverse.

Further, in a range from the waist portion on the lifting frame 3 to a part on the backrest side, a position between the position guided by the appropriate guide means 17 to fit on the lifting frame 3 and the position protruding outward on one side. The slide frame 18 which slides in is provided.

As shown in FIG. 6, for example, the guide means 17 comprises two parallel rails 19 using a channel material.
The upper rotor 20 having the upper peripheral surface in contact with the top wall of the rail 19 and the lower peripheral surface having contact with the bottom wall of the rail 19 are disposed above and below the ends of both sides of the slide frame 18 in the immersion direction. The side rotor 21 ensures smooth sliding even if a load is applied to the slide frame 18.

At this time, as shown in FIGS. 5 to 7, a groove wheel 31 is journaled on the end of the slide frame 18 of the rail 19 in the projecting direction, and the sliding direction of the slide frame 18 is If the lower edge of the rail member 32 attached to the slide frame 18 is fitted, the slide frame 18 can be smoothly slid while stopping its lateral runout.

Further, on the slide frame 18, a waist mat frame 22 is provided from the leg side to the middle of the head direction, and a backrest mat frame 24 having an articulation 23 at the waist mat frame 22 or on the slide frame 18 is provided. It is provided.

Although the joint 23 is provided on the slide frame 18 in the drawing, a backrest mat frame 24 may be provided on the waist mat frame 22 via a joint (not shown) so as to be able to move up and down.

A leg mat frame 25 is provided in a range from the upper waist mat frame 23 of the elevating frame 3 to the foot side.

The above-mentioned leg mat frame 25 is attached via the supporting legs 26 on the lifting frame 3 so as to be at the same level as the waist mat frame 22.

Further, the backrest mat frame 24 is raised and lowered by appropriate lifting and lowering driving means 33.

The above-mentioned undulating drive means 33, a bar 34, which is fixed with its ends between both side edges near the lower joint 23 of the backrest frame 24 in the case shown, and an upper end in the middle of the bar 34. Projecting piece 35 that is fixed and protrudes downward
And a second motor 37 whose end is rotatably supported via a pin 36 on the lower surface leg mat frame 25 side of the slide frame 18, and screwed into a female screw 38 reversibly rotated by the second motor 37, Pin 3 at the lower end of piece 35
When the male screw 40 is slid leftward in FIG. 1 by the forward rotation of the second motor 37, the projecting piece 35 is protruded and the backrest frame 24 is moved from FIG. It stands up as shown in FIG.

When the backrest frame 24 is lowered,
The second motor 37 may be operated in reverse.

The raising and lowering of the lifting frame 3 and the raising and lowering of the backrest mat frame 24 are not limited to the above-described configuration, and may be performed by, for example, a rack and pinion system.

Further, the arm 41 is made to protrude in the direction in which the slide frame 18 protrudes by supporting the distal end of the seat frame 1, and a ground plate 42 is provided at the tip of the arm 41.

Although the arm 41 is projected from the space between the two rails 19 because a load acts on the slide frame 18 in the illustrated case, the position and the number of the arm 41 are not limited.

In short, the purpose is to prevent the side edge of the slide frame 18 of the seat frame 1 from being immersed on the immersion side, and for a heavy person, the side edge of the seat frame 1 (in the immersion direction of the slide frame 18). A weight (not shown) may be attached to the side edge).

Naturally, the ground plate 42 should not be protruded greatly from the external appearance of the bed as shown in FIG.

In the figure, 27 is a leg mat, 28 is a waist mat, 29 is a backrest mat, 43 is a caster, 44 is a stopper for abutting the upper rotor 20 when the slide frame 18 is projected, and 45 is a stopper. End fitting of arm 41, 46
Is a support bracket in the middle of the arm 41.

With the above arrangement, when the person A who needs care on the bed wakes up, the backrest mat frame 24 is rotated in the upright direction by the up / down driving means 33.

Then, the head side of the lying person A is raised from the back (as shown by the chain line in FIG. 1).

When the person who raises the object is allowed to stand on the bed or transfer to a wheelchair, the slide frame 18 is pulled out to the side (to the position shown by the chain line in FIGS. 2 and 4).

Then, the feet of the person in the sitting posture hang down from the waist mat 28, so that the caregiver can stand up or transfer to a wheelchair by himself or even if it is difficult to stand up or transfer to a wheelchair by himself. Will be easier through.

At this time, the lifting of the seat frame 1 due to the pull-out (projection) of the slide frame 18 is prevented by the grounding plate 42.

The lifting frame 3 is raised or lowered with respect to the seat frame 1 via the lifting means 2.

Then, the height of the person lying down in accordance with the height of the caregiver or the posture of the caregiver, the state of the grounding legs in the sitting posture by pulling out the slide frame 18 of the person requiring care, that is, the self-power Freely adjust the posture that is optimal for standing up.

[0039]

Since the nursing bed according to the present invention is constructed as described above, the height of the mat of the backrest, the waist, and the leg can be freely adjusted by raising or lowering the lifting frame by the lifting means. Can be adjusted.

For this reason, the caregiver's care posture can be adjusted to a comfortable posture without pain, that is, according to the caregiver's height and the like.

Further, since the waist mat frame having the backrest mat frame which can be raised by the up / down driving means can be pulled out to the bedside by sliding the slide frame in the projecting direction, the sitting posture requiring nursing care is required. Can be easily lowered from the bed, and the lifting frame can be adjusted up and down to be in an optimal state for grounding the hanging legs.

In particular, it is possible to eliminate the instability such as tilting or lifting of the bed due to the unbalanced load caused by pulling out the slide frame by the grounding plate.

[Brief description of the drawings]

FIG. 1 is a side view of a care bed according to the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is a longitudinal sectional side view showing undulations of a backrest mat frame.

FIG. 4 is a plan view of the above.

FIG. 5 is a vertical sectional front view showing slides of a slide frame.

FIG. 6 is an enlarged longitudinal sectional front view showing a main part of the above.

FIG. 7 is a longitudinal sectional side view of a guide portion of the slide frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat frame 2 Elevating means 3 Elevating frame 4 Rotating shaft 5 First link 6 Pin 7 Second link 8 Projection piece 9 Pin 10 Connection shaft 11 Projection piece 12 Pin 13 First motor 14 Female screw 15 Pin 16 Male screw 17 Guide Means 18 Slide frame 19 Rail 20 Upper rotor 21 Lower rotor 22 Waist mat frame 23 Joint 24 Backrest mat frame 25 Leg mat frame 26 Support leg 31 Groove 32 Rail material 33 Undulating drive means 34 Bar material 35 Projection Piece 36 pin 37 second motor 38 female screw 39 pin 40 male screw 41 arm 42 ground plate

Claims (1)

[Claims] 1. A lifting frame provided on a seat frame so as to be able to be raised and lowered via appropriate lifting means, and a position on the lifting frame that extends from a waist portion to a part of the backrest side and a position that fits in the lifting frame and an outer side. A backrest having a slide frame provided so as to be guided in and out of the projecting position by appropriate guide means so as to slide in and out, a waist mat frame provided on the slide frame, and an articulation portion of an undulating fulcrum on the waist mat frame side. Mat frame, leg mat frame provided on the foot side from the waist mat frame on the elevating frame, suitable hoist driving means provided to raise and lower the backrest mat frame on the slide frame, A care bed comprising an arm extending from a lower surface of the seat frame in a direction in which the slide frame protrudes, and a grounding plate provided at a tip of the arm.