JP2591999B2 - Rotary bed - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed used by physically handicapped persons and elderly people.

Conventional technology Conventionally known as a treatment bed with a completely different purpose
There has been a couch used for spine treatment as found in 52-27472 and patent 86424. In the former treatment bed, the foot side of the bed is slightly rotated left and right, moved slightly back and forth, or slightly twisted to change the posture of the body and treat abnormalities of the spine. In addition, the latter treatment bed also has a bed on the side of the foot which is similarly rotated left and right.

Therefore, all of these are treatment beds that correct the spine deformation by operating the lower body side of the foot while fixing the upper body side bed for spine treatment.

Problems to be Solved by the Invention The present invention is intended for a physically handicapped or physically handicapped elderly person to fall to the floor from a bed, or to be held by a caregiver or to be carried on their own by 90%. It was very difficult to change the direction and automatically sit down and take a posture in which the feet hang down on the floor.

Means for Solving the Problems The present invention has taken the following technical means in order to solve the above problems.

That is, it is divided into a front bed part 20a receiving the upper body from the thigh and a rear bed part 20b receiving the lower body from the leg side,
The support frame 21 of the front couch portion 20a is divided into a waist support frame 21a and a back support frame 21b, and a distal end side of the back support frame 21b is provided so as to be rotatable upward. The receiving portion is configured to be capable of being bent, and the front bed portion 20a is formed.
Between the fixed frame 1 and the rotating frame 6 so that the stationary frame 1 and the rotating frame 6 are stopped from rotating toward the front-rear direction and rotating toward one of the left and right sides from the state moving toward the front-rear direction. A rotation operation mechanism is provided, and a refraction operation mechanism in which the back support frame 21b rotates up and down is interlocked so as to be operated by the driving force of the rotation operation mechanism. The rotary bed is set so that the rotation operation mechanism is operated after the completion of the operation.

According to the present invention, according to the present invention, when a disabled person or an elderly person is lowered from a bed, or when a caregiver is holding or carrying, when the rotation operation mechanism is driven by an appropriate operation, the front bed portion 20a side is moved. Before turning 90 degrees with respect to the rear bed part 20b, the bending operation mechanism for erecting the back support frame 21b is activated, first raises the upper body of a disabled person or an elderly person, and then the foot bed is fixed on the rear bed. Sliding the upper surface of the portion 20b, sliding down from the upper surface of the rear couch portion, changing to a posture in which the patient can easily stand up after standing down from the couch in a sitting posture, or a posture in which the caregiver is easy to hold or carry. In addition to this, unexpected situations due to erroneous operations can be prevented.

Example 1 is a fixed frame of a bed, which is supported by the front and rear legs 2 and 3, the central part in the front and rear direction is depressed downward when viewed from the side, and the frame 1c is appropriately connected to the left and right frames 1a and 1b when viewed from a plane. Connected. 4 and 5 indicate front and rear partitions, respectively.

Reference numeral 6 denotes a rotating frame of the bed, which is a lower fixing ring 7a fixed to a connecting frame 1c located in a recessed portion which is a front-rear intermediate portion of the fixed frame 1 and an upper fixing ring fixed integrally to the connecting frame 1c.
A turning plate 8 is provided in a gap between the upper and lower portions of the turning plate 8 so as to be rotatable by bearings from above and below, and is fixed to the turning plate 8. The rotating frame 6 also includes side frames 6a and 6b extending in the front-rear direction on the left and right sides, a tie frame 6c, and a mounting frame 6d connecting the tie frames 6c and 6c for connecting to the rotating plate 8. ing.

Next, the rotation operation mechanism of the rotation frame 6 will be described. First, reference numerals 9a and 9b denote fixed cams, which are fixed so as to protrude to the left and right sides of the upper surface of the upper fixed ring 7b. The cam grooves (a) and (b) are displaced toward the center from the rear toward the front.
Is provided.

On the other hand, the rotating frame 6 is provided with a transmission part mounting frame 16 that is integrally fixed to the frame 6 and has a rectangular shape in plan view,
The motor 10 is mounted on the frame 16 such that the direction of the drive output shaft 10a is forward and backward, and the screw shaft 12 is connected to the shaft 10a in the front-rear direction via a friction transmission joint 11 which also serves as a shock release. The screw shaft 12 is rotatably supported by the transmission unit mounting frame 16. 13 is a screw cylinder, the screw shaft
12 are provided with shafts 14 and 15 on the left and right sides from the screw cylinder 13 side as a detent mechanism.
Rollers 17, 17... Which roll on the rolls 6a, 16b are mounted.

Reference numeral 18 denotes a horizontal frame having holes 18a, 18b on the left and right sides through which the cam pins 19 can be inserted and removed, and one of the left and right holes 18a or 18b of the horizontal frame 18.
The motor 10 is rotated by inserting a pin 19 into the screw cylinder 13.
When the pin 19 is advanced, the lower end of the pin 19 is fitted into the cam groove (a) or (b) of the cam body 9a or 9b, and the rotating frame 6 is moved to the left or right through the transmission unit mounting frame 16 integrally with the motor 10. It is configured to rotate to the right. Also, the motor
When the screw cylinder 13 is moved backward by rotating the screw 10 in the reverse direction, the rotating frame 6 is rotated in the opposite direction to the above and returns by the cam action when the pin 19 comes out of the cam groove (a) or (b) backward. It is configured. The rotation angle of the rotation frame 6 changes depending on the displacement angle and the length of the cam grooves (a) and (b). In the present invention, the rotation angle of the friction transmission joint 11 is approximately 90 degrees.
Will stop working.

A front bed support frame 21 for supporting the front bed 20a for receiving the upper body from the thigh on the rotating frame 6.
Are provided with brackets 24, 25 for pivotally connecting the hip support frame 21a and the back support frame 21b with pins 23 to a projecting frame 22 projecting from the rotating frame 6 in an inverted U-shape. Frame 21
The base sides of the a and 21b are pivotally connected to each other so as to be freely rotatable, and the front end of the rotation is appropriately supported by the rotary frame 6 so as to be substantially horizontal. A head support frame 21c is attached to the front end side of the back support frame 21b so as to be rotatable on the frame 21b with a pin 26. The head support frame 21c is linked to the projection frame 22. When the back support frame 21b is rotated upward by the connection at 27, only the head support frame 21c is configured to maintain a horizontal posture. In addition, the rod 27a of the link 27
When the base of the head support frame 21b is connected to the bracket 28 fixed to the back support frame 21b, the head support frame 21c does not rotate horizontally but rotates integrally with the back support frame 21b. Two
Attitude switching means for changing the attachment of 7a is configured.

At the four corners of the rotating frame 6, there are provided cylindrical bodies 30 through which a handrail 29 can be inserted and removed. The handrail 29 is rotatably inserted in the front-rear direction through a gate-shaped fixed handrail portion 29a which is inserted into and fixed to the cylindrical body 30 from above and a boss 29c integrated with the rear end upper portion. And a turning handrail portion 29b attached by a retaining groove 32a formed in the insertion shaft 32. The turning handrail portion 29b is formed into a substantially elliptical loop by a pipe, and is inserted into the boss 29c. Rotation stopper pieces 29d and 32b provided on the rotation handrail part 29b on the shaft 32 side end surface
Thus, the state is switched between a state in which the rotating handrail portion 29b hangs downward and a state in which the rotating handrail portion 29b is inclined downward slightly inward and stopped.

The front couch portion 20a is a normal bendable mat for a bed, and is laid on the upper surface of the front couch support frame 21 provided as described above on the rotating frame 6, and the couch portion
The rear end side of 20a is formed in an arc shape drawn around the center of rotation of the rotating frame 6.

The rear bed portion 20b is laid on the rear upper surface of the fixed frame 1, and its front end surface is formed in an arc surface centered on the center of rotation of the rotating frame 6, and this plan view is concave. Left and right end projections on rear bed 20b (c), (d)
Is inclined with respect to the other portions so as to be lower toward the front ends.

Next, a description will be given of a rotation operation mechanism of the waist support frame 21a and the back support frame 21b rotatably attached to the rotation frame 6 via the projection frame 22. Each of these support frames 21a and 2
Cam rollers 35, 36 are attached to the lower surface side of 1b via brackets 33, 34 so as to be rotatable via a horizontal shaft. A cam body 37 that contacts the cam roller 35 is provided on the right end side of the horizontal frame 18 integrated with the screw cylinder 13.
A cam body 38 is fixed to the left side of the cam roller 36 so as to be in contact with the cam roller 36.
Forward, the cam roller 36 is pushed by the front end standing surface of the cam body 38, and the back support frame 21b is gradually rotated rearward. The rear side of the support frame 21a rotates slightly upward. Shortly before the state shown in FIG.
Cam pin 19 inserted into the hole 18a or 18b on one side of
Is inserted into the cam groove (a) or (b) of the fixed cam 9a or 9b located on the pin 19 side, and then the screw cylinder 13 moves forward and the pin 19 reaches the deflecting portion of the cam groove. Starts to rotate left or right. Then, at the time when the turning frame 6 is turned by approximately 45 degrees, the turning frame 6 further turns while the back receiving supporting frame 21a is gradually inclined while the back receiving supporting frame 21b is slightly inclined. Thereafter, when the turning frame 6 is brought to the final turning posture in which the turning frame 6 turns by nearly 90 degrees, the back support frame 21b is in the vertical state, and the hip support frame 2a is returned to the horizontal state. In this way, the positions of each cam and the pin or the cam roller and the shape of the cam body are set.

The motor 10 is provided with a switch box 39 so that a physically handicapped person or an elderly person or a caregiver on the bed can operate the motor.
Is provided so that it can be freely operated at any position with a code,
By switching the switch, the motor 10 can be freely rotated forward and backward, and the rotation direction of the screw shaft 12 is changed so that the screw cylinder 13 can be moved forward or backward.

Reference numeral 40 denotes a convex arc end face of the front bed portion 20a and a rear bed portion 20b.
A sliding member such as leather or synthetic rubber provided on one or both end surfaces between the concave arc end surface and the circular arc end surface for smooth rotation of both.

 Next, the operation of the above example will be described in detail.

A disabled person or an elderly person with a physical disability is placed on the couch 20 so that his / her upper body is laid on the front couch 20a side from the waist and the leg is received by the back couch 20b. From this lying posture, the posture of eating a meal that raises the upper body, the posture of descending to the floor surface 41 on the right side (the left hand side when targeting a person sleeping upward), or being carried or held by the caregiver on the right side 6 and 7, the screw pin 12 is rotated counterclockwise by the motor 10 and the screw cylinder 13 is rotated. To move forward. Then, first, the cam roller 35 attached to the lower back support frame 21a via the bracket 33 is scooped up by the cam body 37, and the bracket 34 is mounted to the back support frame 21b.
The support rollers 21a and 2b are pivotally operated as shown in the operation process from FIG. 16 to FIG. You will be in the upright posture of eating and reading as shown in Figure 22. Note that if only this posture is adopted, the cam pin 19 need not be inserted through the hole 18d or 18b.

Next, the motor 10 is further rotated from this state to
When the 13 is advanced, the cam pins 19
The motor 10 is mounted as shown in FIG. 15 from the state shown in FIG. 13 through the state shown in FIG. 14 by contacting the displaced portion in the cam groove (a) of the left fixed cam 9a provided on the side. The frame 16 and the rotating frame 6 integrated with the frame 16 rotate to the right (arrow E side) with respect to the fixed frame 1 to the state shown in FIGS. When the state shown in FIG. 14 in the middle of the rotation is reached, the relative positions of the cam rollers 35, 36 and the cam bodies 37, 38 are in the state shown in FIG. 18, and when the screw cylinder 13 is further advanced, the rotation The drive side including the motor 10 integrated with the frame 6 rotates approximately 45 degrees from the state shown in FIGS. 14 to 15 and rotates about 90 degrees from the initial state. At the time of the final rotation of about 45 degrees, the relative positions of the cam rollers 35 and 36 and the cam bodies 37 and 38 are operated from the state shown in FIG. 18 to the state shown in FIG. At the same time, the frame 21b side is slightly rotated to the rear, and at the same time, the waist receiving support frame 21a is slightly raised at the rear. Thereafter, the back receiving supporting frame 21b stands up again, and at the same time, the hip receiving supporting frame 21a is in a horizontal state. That is, the sleeping person finally reaches the posture shown in FIG. 23 through the state shown in FIG.

In order to return the original bed to the front-back direction from the posture shown in FIG. 23, when the motor 10 is rotated clockwise (reverse rotation to the above), the operation is completely reverse to the above, and the original bed is returned. It can be made to remain standing. Further, the rotating frame 6
In order to reverse the vertical position, the cam pin 19 may be inserted into the other hole 18b and fitted into the cam groove (b) of the right fixed cam 9b.

Accordingly, in the operation step in which the front bed portion 20a moves from FIG. 22 to FIG. 23, the lower back support frame 21a and the back support frame 21b are operated in the state shown in FIG. 18 to FIG. 20 as described above. Therefore, the person on the couch swings slightly upward the thigh near the waist on the couch supported on the distal end side of the backrest support frame 21a, and rubs the feet entirely on the rear couch portion 20b on the fixed side. In addition to preventing the legs from rotating while being rotated, the legs on the opposite side of the rotation direction are prevented from being hooked on the fixed rear side bed portion 20b and twisting the legs. Also, at this time, if only the waist support frame 21a is swung up, the person on the bed will be bent excessively and suffer,
The back support frame 21b falls slightly rearward, and thereafter the back support frame 21a returns to a horizontal state and stands upright again.

Therefore, the back of the person who is sleeping in the posture shown in FIG. 22 can be raised, and finally the toes can be turned to the side of the bed and the feet can be lowered to the floor as shown in FIG. In order to descend on the floor in the posture shown in FIG. 23, the rotating handrail portion 29b on the rear end side of the handrail 29 is operated as shown in FIG. When set by hanging, the rotating handrail portion 29b approaches the left and right sides of the person trying to stand up, so that the user can easily stand up while grasping the rotating handrail portion 29b and moving his / her body away from the bed with his / her hand.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is an overall side view, FIG. 2 is a plan view thereof, FIG. 3 is a side view of a rotating frame portion, and FIG. 5, FIG. 5 is a plan view of FIG. 3, FIG. 6 is a side view of a main part of an operation mechanism for operating the rotating frame, FIG. 7 is a plan view thereof, and FIG. 9 is a side view of a handrail, FIG. 10 is a side view showing a handrail rotating mechanism, and FIG. 11 is a main part showing handrail rotation. Front view, Fig. 12 ~
FIG. 15 is a plan view showing a rotation stroke diagram of the operation mechanism of the rotation frame, and FIGS. 16 to 20 are side views of main parts showing the operation and stroke of the bending operation of the front bed portion, and FIG. FIG. 21 is a side view of the whole posture change state, FIG. 22 is a side view showing the posture of the person on the couch eating or starting rotation, and FIG. 23 is a rotation frame completed rotation. FIG. 2 shows a side view of a state in which a person stands down on the floor or a caregiver is carrying or hugging. In the drawing, reference numeral 1 denotes a fixed frame, 6 denotes a rotating frame, 20a denotes a front bed portion, and 20b denotes a rear bed portion.

Claims (1)

(57) [Claims] 1. A front bed portion 20a for receiving an upper body from a thigh
And a rear bed 20b for receiving the lower body from the leg side, and the support frame 21 of the front bed 20a is divided into a waist support frame 21a and a back support frame 21b to divide the back support frame 21b. The front side of the front bed 20a is configured to be rotatable upward so that the back support portion of the front bed 20a can be bent.
Between the fixed frame 1 and the rotating frame 6, the 20 a is rotated with respect to the fixed rear-side bed portion 20 b and stopped in a state toward one of the left and right sides from a state toward the front-rear direction. A rotation operation mechanism is provided, and a refraction operation mechanism in which the back support frame 21b rotates up and down is interlocked so as to be operated by the driving force of the rotation operation mechanism. The rotary bed is set so that the rotation operation mechanism is operated after the completion of the operation.