JPH0833683A - Bed - Google Patents

Abstract

PURPOSE:To provide a bed capable of changing a posture from a lying posture to a chair-sitting posture and a floor-alighting chair-sitting posture turned by 90 deg. as a bed for a physically handicapped person on the aged CONSTITUTION:This bed is the one formed in such a way that a turning frame 6 capable of freely turning on a horizontal plane is loaded on the upper side of a fixed frame 1. and a screw shaft 12 transmitted by a forward/backward rotation operable motor 10 and extending in a fixed direction is supported with bearing appropriately with the turning frame 6, and a screw cylinder 13 to be screwed with the screw shaft 12 is attached, and the posture can be freely changed to the one easy to alight from the bed or the one easy to hold or carry the physically handicapped person or the aged in an arm or on the back by changing the positional relation between a front side bed part and a rear side bed part by advancing/retreating the screw cylinder 13 screwed with the screw shaft operated by rotating by the forward or backward rotational operation of the motor 10.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed used by a physically handicapped person or an elderly person.

2. Description of the Related Art Conventionally, as a therapeutic bed having a completely different purpose, Japanese Patent Publication No. 52-27472 and Japanese Patent No. 86424.
There was a bed that was used for spinal treatment as found in the issue. The former of this conventional bed has a function of rotating the bedside of the bed to the left or right, moving it slightly back and forth, or twisting it a little, so that the posture of the body can be changed to correct the spine. It was a sleeper to do. Also, the latter bed was a bed for spine correction in which the foot-side bed portion was also rotated to the left and right. As described above, the conventional bed for spinal correction has a structure in which the upper body is fixed and the feet are actuated. Further, as a conventional technique of the rotary bed, there is Japanese Patent Laid-Open No.
There is one disclosed in Japanese Laid-Open Patent Publication No. 9-160452, in which one side portion, which is the longitudinal side of a bed having a rectangular shape in plan view, is provided with a fixed bed portion except for the front and rear intermediate portions. The entire central portion of the bed is used as a rotating bed portion, and the rotating bed portion is divided into a back receiving portion, a waist receiving portion, and a leg receiving portion. The chair is placed in a bent state, and the rotating bed portion is rotated in the chair state. However, the bed disclosed in Japanese Patent Laid-Open No. 59-160452 has a waist receiving portion. There is a center of rotation on the lower side, and even if an attempt is made to rotate, the fixed bed portion is located at the same height on one side of this waist receiving portion, so that the back receiving portion and the leg receiving portion are provided. It has a structure that cannot be rotated even if it is bent. That is,
This technique disclosed in this publication is an unfinished invention, and it is a bed that cannot be actually rotated.

[Problems to be Solved by the Invention] In the case of a physically handicapped person or an elderly person who is physically handicapped, when the person gets off the bed, is held by a nurse, or is carried on his / her back, the body can
It was very difficult to change the direction to 0 degree and take a chair-resting position in which the feet hang down on the floor. In addition, when the user is in a sitting position on the floor and comes down to the floor, when the bed is placed in the room, it is possible to select whether to rotate counterclockwise 90 degrees or clockwise 90 degrees. It is very important to do this in the layout of the room, the position of windows and walls, and there is this requirement. At this time, the amateur thinks that any direction is acceptable, but accidentally making a mistake in the direction of rotation may cause danger or cause damage.

The present invention takes the following technical means in order to solve the above-mentioned problems. That is, a rotating frame 6 which is freely rotatable in a horizontal plane is attached to the upper side of the fixed frame 1, and a screw extending in a certain direction which is transmitted to the rotating frame 6 by a motor 10 capable of forward and reverse operation. A shaft 12 is appropriately supported, and a screw cylinder 13 that is screwed into the screw shaft 12 is provided. The screw is provided between a member integrally provided on the screw cylinder 13 and a member integrally provided on the fixed frame 1 side. When the cylinder 13 moves on the shaft by the rotation of the screw shaft 12, a cam 19 that can be selectively attached and detached is provided on the left and right sides of the screw cylinder 12, and the cam pin 19 that moves together with the screw cylinder 13 is fixed to engage with the cam 19. The cams 9a and 9b are provided on the fixed frame 1 side,
A rotation actuating mechanism capable of selectively switching rotation of the rotation frame 6 is provided on either the left side or the right side by the cam 19 and the fixed cam 9 that can be selectively switched between the left and right sides. A front bed support frame 21 capable of refracting the waist support frame 21a and the back support frame 21b is provided, and the front bed part 20a is placed on the upper surface of the front bed support frame 21 and on the upper surface of the fixed frame 1 side. Is configured to mount the rear bed 20b, and inside the upstream screw shaft moving area where the screw cylinder 13 reaches the rotation operating mechanism, a member integrally attached to the screw cylinder 13 side and the above A waist support frame rotating mechanism and a back support frame rotating mechanism provided between the waist support frame 21a side and the back support frame 21b side are mounted, and the front bed 20a is in a substantially horizontal posture. From above, rotate the leg receiving direction side of the waist receiving part upward and The operation for changing the posture to the chair-resting state by rotating the front side bed 20a with respect to the fixed side rear bed 20b with respect to the rotating frame 6 is performed in the front-back direction. The start of operation is prioritized over the rotation operation that operates toward one of the left and right sides, and the rotation operation mechanism that rotates the rotation frame 6 causes the entire front couch 20a to be left side in plan view. The bed is provided with a selective rotation mechanism that rotates approximately 90 degrees to the right or rotates approximately 90 degrees to the right.

According to the present invention, the screw shaft 12 that is rotated by the forward or reverse rotation operation of the motor 10 when a person with a disability or an elderly person is unloaded from the bed, or when a caregiver holds it or carries it on his back. By moving the screw cylinder 13 screwed in and out, the front couch 20a side moves from a sleeping position to a chair-resting position in which the upper half of the body is raised, and the front couch 20a side is rotated 90 degrees with respect to the rear couch 20b. The posture is such that the foot side slides on the upper surface of the rear bed section 20b which is fixed and slides down from the upper surface of the rear bed section so that the caregiver can easily hold and carry it on his / her back. In addition, in the front stage of this operation, it is possible to freely change the posture from the sleeping posture to the sitting chair posture with the back raised. These postures can be selected because they can be easily moved to the floor from the bed, and an unforeseen situation such as swinging around in the sleeping posture can be prevented. Can be set to either counterclockwise or clockwise, so you can choose the direction to rotate depending on the floor plan of the room, window, wall position,
It is possible to prevent the bed from accidentally hitting the wall, and to prevent the foot side of a person with a disability from being caught between the wall and the bed, which is extremely safe. In addition, the collision damage of the bed will not occur.

[Embodiment] 1 is a fixed frame of a bed, and front and rear legs 2, 3
It is supported by, and the central part in the front-rear direction is depressed downward when viewed from the side, and the left and right frames 1a, 1b when viewed from a plane
Are appropriately connected by a connecting frame 1c. 4,5 show the front and back partitions, respectively. Reference numeral 6 denotes a rotating frame of the bed, which is located between the upper and lower fixing rings 7a fixed to the connecting frame 1c located in the recessed portion which is the front and rear intermediate portion of the fixing frame 1 and the upper fixing ring 7b fixed integrally with the lower fixing ring 7a. Rotating plate 8 in the gap
Is rotatably provided by bearings from above and below, and is fixedly attached to the rotating plate 8. Further, the rotating frame 6 is also a side frame 6a on the left and right sides facing the front-rear direction,
6b, a tie frame 6c, and a mounting frame 6 in which tie frames 6c, 6c for connecting to the rotating plate 8 are connected.
d and the like. Next, the rotating operation mechanism of the rotating frame 6 will be described. First, 9a and 9b are fixed cams, which are fixed in a state of protruding to the left and right sides of the upper surface of the upper fixing ring 7b, and have cam grooves (a) and (b) which are displaced from the rear to the center toward the front. It is provided. on the other hand,
The rotating frame 6 is provided with a transmission portion mounting frame 16 integrally fixed to the frame 6 and having a rectangular shape in a plan view, and the motor 10 is mounted on the frame 16 so that the drive output shaft 10a of the motor 10 faces forward and backward. A screw shaft 12 is connected to the shaft 10a in the front-rear direction via a friction transmission joint 11 that also serves as a shock absorber, and the screw shaft 12 is rotatably supported by the transmission portion mounting frame 16. Reference numeral 13 is a screw cylinder, which is screwed onto the screw shaft 12 and provided with shafts 14 and 15 on the left and right sides from the screw cylinder 13 side as a rotation stop mechanism thereof, on which the left and right frame portions 16a and 16b of the frame 16 are mounted. Rollers 17, 17 ... Rolling in contact with each other are attached. 18
Is a horizontal frame having holes 18a and 18b on the left and right sides through which the cam pins 19 can be inserted and removed, and the pin 19 is inserted into one of the left and right holes 18a or 18b of the horizontal frame 18 so that the motor 10
When the screw cylinder 13 is rotated to move the screw cylinder 13 forward, the lower end of the pin 19 is fitted in the cam groove (a) or (b) of the cam body 9a or 9b, and the transmission portion mounting frame 1 is integrated with the motor 10.
The rotary frame 6 is configured to rotate leftward or rightward via the switch 6. Further, when the motor 10 is rotated in the reverse direction to move the screw cylinder 13 backward, the rotating frame 6 reversely rotates and returns by the cam action when the pin 19 slips backward from the cam groove (a) or (b). Is configured to. The turning angle of the turning frame 6 changes depending on the displacement angles and lengths of the cam grooves (a) and (b), but in the present invention, the turning frame 6 turns about 90 degrees and the friction transmission joint 11 works and stops. It is like this. The front couch support frame 21 that supports the front couch 20a that receives the upper upper body from the thighs on the rotating frame 6 is supported by the projecting frame 22 that projects from the rotating frame 6 in an inverted U shape. Support frame 21a
Brackets 24 and 25 for pivotally attaching the back support frame 21b and the back support frame 21b respectively with pins 23 are provided, and the support frames 21a and 21
The base side of b is rotatably pivotally supported, and the tip end side of the pivot is appropriately supported by the pivot frame 6 so as to be in a substantially horizontal state. A head support frame 21c pivotally attached to the frame 21b by a pin 26 is attached to the tip end side of the back support frame 21b. The head support frame 21c is
The back support frame 2 is connected to the projection frame 22 by a link 27.
Only the head support frame 21c is configured to maintain the horizontal posture when the 1b is rotated upward. Incidentally, if the base of the rod 27a of the link 27 is connected to the bracket 28 fixed to the back support frame 21b, the head support frame 21c.
The posture switching means for changing the attachment of the rod 27a is configured so as to rotate integrally with the back support frame 21b without being horizontally rotated. Further, at the four corners of the rotating frame 6, a handrail 29 can be inserted / removed and a cylindrical body 30 ...
Is provided. The handrail 29 is a gate-shaped fixed handrail portion 29a that is fixed by being inserted into the tubular body 30 from above.
And a turning handrail portion 29b that is rotatably inserted in the front-rear direction through a boss portion 29c that is integrated with the rear end upper part and that is attached by a screw 31 and a retaining groove 32a formed in the insertion shaft 32. The rotating handrail portion 29b is formed of a pipe in a substantially elliptical loop, and is formed by the boss portion 29c and the insertion shaft 32.
With the rotation stopper pieces 29d and 32a provided on the rotation handrail portion 29b of the side end surface portion, the rotation handrail portion 29b hangs downward and the state in which the rotation handrail portion 29b inclines slightly downward and is stopped. It is configured to be switched to. Three
2c shows a cover of the stopper portion. The front bed section 2
Reference numeral 0a denotes a usual bendable mat for a bed, which is laid on the upper surface of the front bed supporting frame 21 provided on the upper part of the rotating frame 6 as described above, and the rear end side of the front bed portion 20a is It is formed in an arc shape with the center of rotation of the rotating frame 6 as a core. The rear bed 20b is laid on the rear upper surface of the fixed frame 1, and its front end surface is formed into an arcuate surface with the center of rotation of the rotating frame 6 as a core, and its plan view is concave. Left and right end side protrusions (c) and (d) of the rear bed part 20b are inclined so as to be lower toward the tip ends of both ends with respect to other parts. Next, a rotation operation mechanism for the waist receiving support frame 21a and the back receiving support frame 21b rotatably attached to the rotating frame 6 via the protruding frame 22 will be described. Each of these support frames 21a and 21
Cam rollers 35 and 36 are mounted on the lower surface b of the roller b through brackets 33 and 34, respectively, so as to be rotatable via lateral shafts. Further, a cam body 37 contacting the cam roller 35 is fixed to the right end side portion of the horizontal frame 18 integrated with the screw cylinder 13, and a cam body 38 contacting the cam roller 36 is fixed to the left side of the screw cylinder 13. When the screw shaft 12 is rotated by the motor 10 and the screw cylinder 13 is moved forward, the cam body 38
The cam roller 36 is pushed by the front end standing surface of the back support frame 2
1b gradually turns to the rear side, and at the same time, the cam roller 35 is gradually scooped up by the cam body 37 to turn the rear side of the waist support frame 21a slightly upward. And the 18th
The cam pin 19 inserted through the hole 18a or 18b on one side of the lateral frame 18 shortly before the state shown in the figure is reached.
Is located on the pin 19 side of the fixed cam 9a or 9b
Then, when the screw cylinder 13 moves forward and the pin 19 reaches the deflecting portion of the cam groove, the rotating frame 6 starts rotating to the left or right.
Then, at a time when the back support frame 2 is rotated by about 45 degrees,
The rotating frame 6 further rotates while the waist receiving support frame 21a gradually becomes steep while the 1b is tilted so as to be slightly inclined. After that, the rotating frame 6 is approximately 90
The back support frame 21b when it reaches the final rotation posture in which it rotates nearly
The side becomes vertical, and the waist support frame 21a returns to the horizontal state. In this way, the positions of the cams and the pins or the cam rollers and the shape of the cam body are set. The motor 10 is provided so that a switch box 39 can be freely operated at any position by a cord so that the motor 10 can be operated by a physically handicapped person, an elderly person, or a caregiver on the bed. Can be freely rotated in the forward and reverse directions, and the screw cylinder 13 can be moved forward or backward by changing the rotation direction of the screw shaft 12. Reference numeral 40 denotes a leather or a synthetic rubber which is provided on one end surface or both end surfaces between the convex arcuate end surface of the front bed 20a and the concave arc end surface of the rear bed 20b to smoothly rotate the both. A sliding member is shown. Next, the operation of the above example will be described in detail. Sleeper 20
On the front of the bed 20a
The upper body from the waist to the side is laid down in an upward state with the rear bed 20b receiving the legs. From this lying posture, the posture of raising the upper body to eat or the posture of descending to the floor 41 side on the right side (the left hand side when the person sleeping in the upward direction is the target), or the caregiver on the right side is carried or held up. If you want to take a posture like
Is inserted into the left side hole 18a of the lateral frame 18 as shown in FIGS. 6 and 7, and the screw shaft 12 is rotated counterclockwise by the motor 10.
The screw cylinder 13 is moved forward. Then, first, the cam roller 35 attached to the waist support frame 21a side via the bracket 33 is scooped up by the cam body 37, and the cam roller 36 attached to the back support frame 21b side via the bracket 34 is cammed. Abutting on the front surface of the body 38, FIG.
As shown in the operation steps up to FIG. 18, the support frames 21a and 21b are rotatably actuated, and the upper body for eating or reading in the sitting position shown in FIGS. It becomes a posture to raise. If you just take this posture,
It is not necessary to insert the cam pin 19 into the holes 18a and 18b. Next, when the motor 10 is further rotated from this state to move the screw cylinder 13 forward, the cam pin 19 is displaced in the cam groove (a) of the left fixed cam 9a provided on the fixed frame 1 side of the bed. As shown in FIG. 15 through the state of FIG. 13 through the state of FIG. 14 by contacting with the frame 16, the frame 16 to which the motor 10 is attached and the rotary frame 6 integrated with the frame 16 are attached to the fixed frame 1. On the other hand, it is rotated to the right side (arrow E side) to the state shown in FIGS. 12 to 15. When the state shown in FIG. 14 is reached during this rotation, 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 is performed. The drive side including the motor 10 integrated with the frame 6 side rotates about 45 degrees from the state shown in FIGS. 14 to 15 and about 90 degrees from the initial state. Then, at the time of the final rotation of about 45 degrees, the relative position between the cam rollers 35 and 36 and the cam bodies 37 and 38 is changed from the state shown in FIG.
When the back support frame 21b side is slightly rotated rearward by operating up to the state shown in FIG. 0, the waist support frame 21a side is slightly raised rearward, and then the back support frame 21b side is erected again at the same time. The waist support frame 21a side becomes horizontal. That is, the sleeping person finally goes into the posture shown in FIG. 23 through the state shown in FIG. In addition, in order to return the original bed from the posture of FIG. 23 so as to be in the front-back direction, the motor 20 is rotated to the right (reverse rotation to the above), and the operation reverse to the above is carried out to return to the original bed. You can keep the posture. Further, in order to further reverse the turning frame 6 to reverse the standing side, the cam pin 19 may be thrust into the other hole 18b and fitted into the cam groove (b) of the right fixed cam 9b. Therefore, in the operation process of the front couch 20a from FIG. 22 to FIG. 23, the waist support frame 21a and the back support frame 21b are performed.
Is operated in the state shown in FIGS. 18 to 20 as described above, the person on the bed slightly moves the thigh portion near the waist on the bed supported by the distal end side of the waist support frame 21a. It swings up to prevent the foot side from rotating while being totally rubbed on the fixed-side rear bed portion 20b, and the foot on the side opposite to the rotating direction is fixed to the rear-side bed portion 20b. Prevents you from getting caught and twisting your legs. Further, at this time, if only the waist support frame 21a is swung up, the person on the bed is excessively bent and suffers, so that the back support frame 21b falls slightly rearward and then the waist support frame 21a becomes horizontal. At the same time it returns to its original shape, it stands upright again. Therefore, the sleeping person can be finally turned to the side of the bed in the posture shown in FIG. In this position, the floor 41
In order to get off on the surface, if the turning handrail portion 29b is placed in the posture in which it is turned into the phantom line of FIG. 11 and the bed of FIG. 23 itself, it is easy to grasp the turning handrail portion 29b and place it on the floor 41. You can get down. In order to prevent the pillow 42 placed on the front side of the bed and other books placed on the bedside from dropping when the front bed portion 20a is pivotally bent, the link mechanism 2 is used.
The base side of the rod 27a of 7 is the bracket 2 of the protruding frame 22.
When the back support frame 21b is pivoted upward, the head support frame 2 is pivotally connected to the head support frame 2b as shown by the phantom line in FIG.
Since 1c always maintains the horizontal posture, the head support frame 21c hardly changes in the posture as shown in FIG. 21 or FIG. 22, and prevents the pillow 42 and other items placed on the bedside from sliding down. it can.

[Brief description of drawings]

1] Side view

FIG. 2 is a plan view

FIG. 3 is a side view of a rotating frame portion.

FIG. 4 is a side view of FIG.

FIG. 5 is a plan view of FIG.

FIG. 6 is a side view of a main part of an operating mechanism that operates a rotating frame.

FIG. 7 is a plan view of FIG.

FIG. 8 is a side view of an essential part showing a mounted state of the back support frame.

FIG. 9: Side view of handrail

FIG. 10 is a side view showing the turning mechanism of the handrail.

FIG. 11 is a front view of the main part showing the rotation of the handrail.

FIG. 12 is a plan view showing a rotating process diagram of the operating mechanism of the rotating frame.

FIG. 13 is a plan view showing a rotating process diagram of the operating mechanism of the rotating frame.

FIG. 14 is a plan view showing a rotating process drawing of the operating mechanism of the rotating frame.

FIG. 15 is a plan view showing a rotating process drawing of the operating mechanism of the rotating frame.

FIG. 16 is a side view of the main part showing the action and process of refraction of the front bed.

FIG. 17 is a side view of the main part showing the action and process of refraction of the front bed.

FIG. 18 is a side view of the main part showing the action and process of refraction of the front bed.

FIG. 19 is a side view of the main part showing the action and process of refraction of the front bed.

FIG. 20 is a side view of an essential part showing the action and process of refraction of the front bed.

FIG. 21 is a side view of the entire posture changed state.

FIG. 22 is a side view showing the posture of the person on the bed to take a meal or the rotation start time.

FIG. 23 is a side view of a state in which the turning frame has completed turning and a person stands on the floor, or a caregiver carries or holds the person.

[Explanation of symbols]

 1 Fixed Frame 6 Rotating Frame 10 Motor 12 Screw Shaft 13 Screw Cylinder 20a Front Bed 20b Rear Bed 21 Front Bed Support Frame 21a Waist Support Frame 21b Back Support Frame

Claims (1)

[Claims] 1. A fixed frame 1 is provided with a rotatable frame 6 on its upper side, which is rotatable in a horizontal plane, and a fixed direction transmitted to the rotatable frame 6 by a motor 10 capable of forward and reverse operation. The screw shaft 12 extending in the direction of the shaft is properly supported, and the screw cylinder 13 screwed to the screw shaft 12 is provided. Between the member integrally provided on the screw cylinder 13 and the member integrally provided on the fixed frame 1 side. When the screw cylinder 13 moves on the shaft by the rotation of the screw shaft 12, detachable and selectable cams 19 are provided on the left and right sides of the screw cylinder 12, and the cam pins 19 that move together with the screw cylinder 13 are engaged. The fixed cams 9a and 9b to be fitted are provided on the fixed frame 1 side, and the turning frame 6 can be selectively switched and turned to either the left side or the right side by the cam 19 and the fixed cam 9 which can be switched between left and right. The rotary frame is equipped with 6 is equipped with a front bed support frame 21 in which a waist support frame 21a and a back support frame 21b can be bent. The front bed part 20a is placed on the upper surface of the front bed support frame 21 and the fixed frame 1 side is provided. On the upper surface of the rear bed part 2
0b is mounted, and the screw cylinder 1 is located inside the screw shaft moving area on the upstream side where the screw cylinder 13 reaches the rotation operating mechanism.
A member integrally attached to the 3 side and the waist support frame 2
A waist support frame rotating mechanism and a back support frame rotating mechanism provided between the 1a side and the back support frame 21b side are attached to the front bed 20a from a substantially horizontal posture so that the waist support section The operation of rotating the leg receiving direction side of the upper side upward and rotating the back receiving side to the upper side to change the posture to the chair-resting state is performed. Side bed 20
The rotation operation in which the rotation frame 6 is rotated by prioritizing the operation start over the rotation operation in which the rotation frame 6 is rotated in the front-rear direction and is operated in the left or right direction. A bed having a selective rotation mechanism for rotating the whole of the front bed section 20a by about 90 degrees to the left or about 90 degrees to the right in a plan view.