JPH11244096A - Reclining bed with waist sliding mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a feeling of crampedness, pressure on the body toward feet and slipping off by pressing force from above when a backrest of a reclining bed is raised. SOLUTION: In this bed, the backrest part 3 is not directly connected with the waist part 4 and the foot part 5 at a fulcrum but mutually independently constituted, and they are connected by a link 7 so that the backrest, when raised, sinks downward and then rises, and the head side of the waist part 4, linked with the movement, may more largely downward to the lower side of the feet. Then, the foot side of the waist part 4 is first moved upward to the upper side of the foot part and then moved downward to the lower side of the feet part. Further, the lower side of the foot part rotatably connected with the waist part 4 moves toward the lower side of the foot part. Consequently, the waist part 4 and the foot part 5 roughly constitute a mountain shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed suitable for nursing a seriously ill patient or a bedridden elderly person.

[0002]

2. Description of the Related Art In general, for those who are likely to spend a long time in bed, such as seriously ill patients, the elderly, and the disabled, lying on the bed is a matter of lifestyle. It is not good from the top, from the viewpoint of functional recovery, and from the viewpoint of preventing bedsores. From such a viewpoint, so-called reclining, such as a structure in which the backrest occurs, a structure in which the waist and feet are in a mountain shape in conjunction with the occurrence of the backrest, and a structure in which the backrest, the waist, and the feet can independently change their angles, etc. Beds are widely used.

[0003] However, in the conventional reclining bed, when the backrest is raised, the patient's body is pushed forward and downward, and the feeling of pressure from the back and the feeling of cramped by sliding down the clothes are raised as problems.

[0004] As a result, the position of the patient's body with respect to the bed shifts in the downward direction each time the user reclines. The caregiver must move the heavy patient's body each time to relieve pain and change position,
It is very hard work. This is one of the causes that makes patients bedridden and less likely to occur.

In order to solve such a problem, the position of the rotation fulcrum of the backrest portion is devised, or the bent portion of the backrest portion is constituted by multiple joints so that the backrest portion bends gently and smoothly. Something that can be adjusted in length is provided. In addition, it has been proposed that the backrest be raised while moving backward.

However, when actually used, the effect is insufficient, and the feeling of pressure on the body and the displacement of the body have not been solved.

In order to solve such a problem, the inventor of the present invention raised the backrest on March 4, 1997 in Japanese Patent Application No. Hei 9-48675, in which the waist and lower legs move forward and downward in conjunction with each other. Proposed bed.

However, in Japanese Patent Application No. 9-48675, as an embodiment in which the backrest is raised and the waist / foot is moved forward and downward, the link is moved by one-point rotation. Although this structure has a certain degree of effect, it cannot be moved to a position that the user really wants to move due to restrictions on the length of the link and the position of the fulcrum.

[0009]

As described above, in the conventional reclining bed, it is difficult to fundamentally solve the feeling of pressure on the body and the displacement of the body by devising the position and shape. The structure must be fundamentally changed so that the back is not pushed forward and downward when the backrest is raised.

In order to solve such a problem, in a structure in which the waist and feet are moved forward and downward when the backrest is raised, the amount of forward and downward movement is determined by a one-point rotation circle. You need to set the optimal settings, not just exercise.

[0011]

In order to achieve the above-mentioned object, the bed according to the present invention, when the backrest is raised upward, the interlocking link connected to the back-raising link is pushed forward, and the lower back of the waist is moved. Lower the one-turn pivoting waist forward link that holds the roller attached to the lower part slidably forward, and lower the roller downward along the foot along the guide groove that is formed with the roller in the radial direction in advance. Move the lower back of the lower back with respect to the backrest.

At the same time, when the waist head moves downward, the intermediate guide roller attached to the lower part of the lower part of the waist is moved upward along the mountain-shaped intermediate guide contacting the roller. To move the foot downward.

When the waist further moves in the lower direction, a foot guide roller attached to the lower portion of the lower portion of the foot connected to the lower portion of the lower portion is formed in advance with the radial direction of the roller interposed therebetween. Move the foot downward along a certain guide groove.

[0014]

The bed according to the present invention uses a stretchable mat and sheets that follow the movement of the bed,
When raising the backrest and raising the patient, the backrest sunk downwards, and the waist moved greatly forward and downward, so the patient's clothes were pushed down and did not give a cramped feeling, the back was pushed Also the waist moves forward and I do not feel any oppression. Also, there is no displacement of the body with respect to the bed.

Furthermore, when the waist and feet move largely forward and downward, the amount of movement can be optimally set by the shape of the guide groove without being caught by the trajectory of the circular motion, so that the feeling of pressure on the patient can be improved more efficiently. Can be removed.

[0016] Therefore, the patient lying down can be awakened without pain, and the patient himself feels like to wake up frequently, and the position of the body does not change for the caregiver no matter how many times the patient wakes up. Because there is no need to pull and change the position of a heavy patient, it is tempting to raise it as many times as possible, and as a result, the patient can maintain the posture often raised, maintaining lifestyle and functioning Useful for recovery and preventing bedsores.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 corresponds to a state in which a patient lies down while lying on the top surface of a bed. The bed surface is divided into three backrest parts, four waist parts, and five foot parts, and they are connected at 12 waist gap filling sheets and 19 foot folding fulcrums.

FIG. 2 shows a state in which the backrest is raised. A series of operations when the backrest is raised will be described with reference to FIGS. When the lower end of the 6-back upper link is pulled toward the motor side by the 2-back upper motor, the upper end of the 6-back upper link pushes up the 3 backrest portion. At this time, the three backrests pivot upward about the 15 fulcrum A. At this time 15
Since the fulcrum A is below the three backrests, the lower ends of the three backrests pivot downward.

Simultaneously, the other end of the interlocking link pivotally supported by the upper back link which is pivoted upward is pivotally supported at the other end by the lower back link. Rotate the link downward. At this time, a long hole is formed at the distal end of the 8 waist forward link, and a 10 waist guide roller installed below the head side of the 4 waist is slidably fitted. In this state, when the 8 waist forward link is rotated in the downward direction, the 10 waist guide roller moves downward along the 16 waist guide groove while sliding in the long hole of the 8 waist forward link.

At this time, 9 is installed below the lower leg of the waist.
The intermediate guide roller is first lifted upward under the foot along the mountain-shaped 18 intermediate guide, and then moves downward under the foot.

At this time, the four waist parts and the five foot parts are 19
Are pivotally connected to each other at a fulcrum
The 11-foot guide roller installed below the foot of the foot moves downward under the foot along the 17-foot guide groove.

Therefore, when the backrest portion is raised, the head side of the waist portion moves while sinking below the foot, so that the mat, sheets, and clothes in contact with the backrest surface are pressed down from above to give a cramped feeling. There is no.

Furthermore, even if it is pushed from the back to the foot,
4. Since the waist moves in the same direction, there is no feeling of pressure on the body.

At the same time, the lower part of the four waist parts moves upward at first, so that the knees are bent in a mountain shape, and the mat, sheets, and body become four.
Prevents movement of the lower back relative to the waist.

Since the four waist parts and the five foot parts are generally mountain-shaped, a natural and comfortable sitting position can be maintained.

Further, in the gap between the backrest portion and the waist portion, a 12 waist gap filling sheet is elastically wound around a take-up roller, and stretched, so that a mat, a sheet, a futon, a human body, etc. It also prevents falling and pinching, and follows the change in the gap between the three backrests and the four waist due to the sliding of the four waist.

Similarly, in the gap between the five feet and the bottom end of the bed, a 13-foot gap-filled sheet is elastically wound around a 14 take-up roller and stretched. , Sheets, futons, the human body, etc., are prevented from falling and being pinched, and the change in the gap between the five feet and the end of the bed caused by sliding of the five feet is followed.

[0028]

As described above, the bed according to the present invention is such that the backrest sinks downward when the patient is raised by raising the backrest by using the optimum mat and sheets combined therewith. And the waist moves largely below the feet, so even if pushed from above the back, the hips move below the feet and do not feel a sense of oppression. Also, there is no displacement of the body with respect to the bed.

Therefore, the patient lying down can be awakened without pain, and the patient himself feels like to wake up frequently, and the position of the body does not change for the caregiver no matter how many times the patient wakes up. Because there is no need to pull and change the position of a heavy patient, it is tempting to raise it as many times as possible, and as a result, the patient can maintain the posture often raised, maintaining lifestyle and functioning Useful for recovery and preventing bedsores.

[Brief description of the drawings]

FIG. 1 is a view showing a bed surface in a horizontal state.

FIG. 2 is a view showing a state in which a backrest is raised.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed body 2 Back motor 3 Backrest part 4 Waist part 5 Foot part 6 Back link 7 Interlocking link 8 Waist forward link 9 Intermediate guide roller 10 Waist guide roller 11 Foot guide roller 12 Waist gap filling sheet 13 Leg gap filling sheet 14 Take-up roller 15 Support point A 16 Waist guide groove 17 Foot guide groove 18 Intermediate guide 19 Foot break support point

Claims (3)

[Claims] When the backrest is lifted upward, an interlocking link connected to the back-raising link is pushed forward, and a one-point rotation that slidably holds a waist guide roller mounted on a lower part of the waist head side. The lower back link is moved forward, and the lower back guide roller is moved in the lower side along the lower back guide groove formed in advance with the waist guide roller sandwiching the radial direction of the lower back guide roller, and the lower back side of the lower back side with respect to the backrest. A reclining bed that has been moved downward to eliminate pressure on the body and displacement of the body. 2. A reclining bed characterized by moving an intermediate guide roller mounted on a lower part of the lower part of the waist along an intermediate guide formed into a mountain shape when the lower part moves downward of the lower part of the lower part. 3. When the waist moves downward under the foot, the foot guide roller attached to the foot of the foot connected to the foot of the waist is sandwiched in advance in the radial direction of the roller. A reclining bed characterized in that it is moved downward under the feet along the guide groove formed by the step, thereby eliminating pressure on the body and displacement of the body position.