JP2745396B2 - Sleeper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

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

2. Description of the Related Art Conventionally, a bed for treatment having a completely different purpose has been disclosed in Japanese Patent Publication No. 52-27472 and Japanese Patent No. 86424.
There was a couch used for spine treatment as seen in the issue. The former type of conventional bed has a function of rotating the foot side of the bed to the left or right, moving it slightly back and forth, or twisting a little, and changing the posture of the body to perform a spinal correction treatment. It was a sleeper to do. In addition, the latter couch was a spine correction couch that similarly turned the foot-side couch part left and right. As described above, the conventional bed for spinal correction has a structure in which the upper body is fixed and the foot side is operated. Further, as a conventional technology of a rotary bed, Japanese Patent Application Laid-Open
Japanese Unexamined Patent Publication No. 9-160452 discloses a fixed bed portion except for a front and rear middle portion of one side portion which is a longitudinal side of a rectangular bed in plan view, except for the fixed bed portion. The entire central area of the bed is a rotating bed, and the rotating bed is divided into a back support part, a waist support part and a leg support part, and the back support part and the leg support part are upward and downward. The bed is bent so as to be placed on a chair, and the rotating bed is rotated while being placed on a chair. The bed disclosed in JP-A-59-160452 has a waist-receiving portion. There is a center of rotation on the lower side and even if you try to rotate it, the fixed bed part is located at the same height on one side of this waist receiving part, so the back part and the leg receiving part It has a structure that cannot rotate even if bent. That is,
This technique disclosed in this publication is an unfinished invention, and is a bed that cannot actually rotate.

A disabled person or an elderly person with a physical disability needs to be able to use his / her own body when falling down from a bed, being held by a nurse, or being carried by a nurse.
It was very difficult to change the orientation by 0 degrees and take a chair-hanging posture in which the feet hung on the floor. In addition, when the bed is placed on a floor in a chair-hanging posture, when the bed is placed in a room, it is possible to select whether to rotate counterclockwise 90 degrees or clockwise 90 degrees. This is very important for room layouts, windows, and wall positions, and this is a requirement. At this time, the amateur thinks that either direction is acceptable, but if the direction is incorrectly changed by accident, it may be dangerous or cause damage.

In order to solve the above-mentioned problems, the present invention takes the following technical means. That is, a rotating frame 6 that is rotatable in a horizontal plane is mounted on the upper side of the fixed frame 1, and a screw extending in a certain direction that is transmitted to the rotating frame 6 by a motor 10 that can be operated forward and reverse. The shaft 12 is appropriately supported, and a screw tube 13 is provided for screwing with the screw shaft 12. The screw tube 13 is provided between a member provided integrally with the screw tube 13 and a member provided integrally with the fixed frame 1. When the cylinder 13 moves on the screw shaft 12 due to the rotation of the screw shaft 12, a detachable cam 19 is provided on the left and right sides of the screw cylinder, and the cam pin 19 that moves together with the screw cylinder 13 is fixed. Cams 9a and 9b are provided on the fixed frame 1 side,
The cam 19 and the fixed cam 9 which can switch between left and right are provided with a rotation operating mechanism which can selectively switch and rotate the rotating frame 6 to one of left and right directions. A front couch support frame 21 capable of bending the waist support frame 21a and the back support frame 21b is provided. A front couch portion 20a is placed on the upper surface of the front couch support frame 21, and is mounted on the upper surface of the fixed frame 1 side. The rear bed 20b is placed and configured, and inside the screw shaft moving area on the upstream side where the screw cylinder 13 faces the rotation operating mechanism, a member integrally attached to the screw cylinder 13 side and A waist receiving support frame rotating mechanism and a back receiving supporting frame rotating mechanism provided between the waist receiving support frame 21a side and the back receiving supporting frame 21b side are mounted, and the front bed part 20a is placed in a substantially horizontal posture. From the leg receiving direction side of the waist receiving part side upward and the back receiving part side The operation of turning to the side and changing the posture to the chair-hanging posture state starts from the state in which the front frame 20a turns the rotating frame 6 side with respect to the fixed rear frame 20b and moves in the front-rear direction. The start of the operation is prioritized over the rotation operation that is performed in a direction toward one of the left and right sides, and the entire front bed portion 20a is left in plan view by the rotation operation mechanism that rotates the rotation frame 6. The bed is characterized by having a selective rotation mechanism for rotating the head approximately 90 degrees or rotating the right approximately 90 degrees.

According to the present invention, the screw shaft 12 is rotated by the forward or reverse operation of the motor 10 when the disabled person or the elderly is dropped from the bed, or when the caregiver is holding or carrying the car. When the screw cylinder 13 is screwed forward and backward, the front couch 20a is moved from the sleeping position to the chair resting position in which the upper body is raised and the front couch 20a is turned 90 degrees with respect to the rear couch 20b. Rotate the foot so that the foot side is fixed, slide on the upper surface of the rear couch portion 20b, and slide down from the upper surface of the rear couch portion to easily get off the couch, or a posture in which the caregiver is easy to hold or carry. It is possible to change the posture freely from the sleeping position to the sitting position in which the user is sitting upright before the operation. By moving the bed, it is easy to descend from the bed to the floor, so that these postures can be selected, and an unexpected situation such as swinging while lying down can be prevented. Can be set to either clockwise or clockwise, so you can select the direction of rotation in the room layout, windows, and wall positions,
It is possible to prevent the bed from unexpectedly hitting the wall or to prevent the stepped side of the disabled person from being pinched between the bed and the wall. Also, it is possible to prevent the bed from being damaged by collision.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a fixed frame of a bed, and front and rear legs 2 and 3.
The central part in the front-back direction is recessed downward when viewed from the side, and the left and right frames 1a and 1b when viewed from the plane.
Are appropriately connected by a connecting frame 1c. Reference numerals 4 and 5 indicate front and rear partitions, respectively. Reference numeral 6 denotes a rotating frame of the bed, which is located between a lower fixing ring 7a fixed to the connecting frame 1c located in a recessed portion which is a front and rear intermediate portion of the fixed frame 1 and an upper fixing ring 7b fixed integrally to the connecting frame 1c. Rotating plate 8 in the gap
Are rotatably provided by being received from above and below by bearings, and are fixed to the rotating plate 8. The rotating frame 6 also has side frames 6a,
6b, a tie frame 6c, and a mounting frame 6 connecting the tie frames 6c, 6c for connection to the rotating plate 8.
d and the like. 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 in such a manner as to protrude to the left and right sides of the upper surface of the upper fixed ring 7b, and have cam grooves (a) and (b) 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 unit mounting frame 16 which is integrally fixed to the frame 6 and has a rectangular shape in a plan view, and the motor 10 is mounted on the frame 16 such that the direction of the drive output shaft 10a is forward and backward. A screw shaft 12 is connected to the shaft 10a in the front-rear direction via a friction transmission joint 11 which also functions as a shock release, and the screw shaft 12 is rotatably supported by the transmission portion mounting frame 16. Reference numeral 13 denotes a screw cylinder, which is screwed to the screw shaft 12, and provided with shafts 14, 15 on the left and right sides from the screw cylinder 13 side as a detent mechanism, on which the left and right frame portions 16 a, 16 b of the frame 16 are mounted. The rollers 17, 17... 18
Is a horizontal frame having left and right holes 18a and 18b through which cam pins 19 can be inserted and withdrawn. 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
Is rotated to advance the screw cylinder 13, 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 transmission unit mounting frame 1 is integrated with the motor 10.
The rotating frame 6 is configured to rotate leftward or rightward via the first frame 6. When the screw 10 is moved backward by rotating the motor 10 in the reverse direction, the rotating frame 6 rotates in the opposite direction to the above by the cam action when the pin 19 comes out of the cam groove (a) or (b) backward. It is configured to be. The turning angle of the turning frame 6 changes depending on the displacement angles and lengths of the cam grooves (a) and (b). In the present invention, however, the turning shaft is turned by approximately 90 degrees, and the friction transmission joint 11 works to stop. It has become. A front couch support frame 21 that supports a front couch portion 20a that receives the upper body from the thigh portion on the rotating frame 6 has a projection frame 22 protruding from the rotating frame 6 in an inverted U-shape. Receiving support frame 21a
Brackets 24 and 25 are provided for pivotally connecting the support frame 21b and the back support frame 21b with pins 23, respectively.
The base side of b is rotatably pivoted, and the front end of the rotation is appropriately supported by the rotation 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 rotatably connected to the frame 21b with a pin 26. The head support frame 21c is
The back support frame 2 is connected to the projection frame 22 by a link 27.
When the head 1b is rotated upward, only the head support frame 21c is configured to hold a horizontal posture. 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
Does not rotate horizontally, but turns integrally with the back support frame 21b, thereby constituting a posture switching means for changing the attachment of the rod 27a. A cylindrical body 30 into which a handrail 29 can be inserted and removed is provided at the four corners of the rotating frame 6.
Is provided. The handrail 29 is a gate-shaped fixed handrail portion 29a which is inserted into and fixed to the cylindrical body 30 from above.
And a rotating handrail portion 29b rotatably inserted in the front-rear direction through a boss portion 29c integrated with the rear end upper portion, and attached by a screw 31 and a retaining groove 32a formed in the insertion shaft 32. The rotating handrail portion 29b is formed in a substantially elliptical loop by a pipe, and the boss portion 29c and the insertion shaft 32
A state in which the rotating handrail portion 29b hangs down by the rotation stopper pieces 29d and 32a provided in the rotating handrail portion 29b of the side end surface portion, and a state in which the rotating handrail portion 29b is inclined downward slightly inward and stopped. It is configured to be switched to. 3
2c indicates a cover of the stopper portion. The front bed 2
Reference numeral 0a denotes a normal bendable mat for bed, which is laid on the upper surface of the front bed support frame 21 provided as described above on the rotating frame 6, and the rear end side of the front bed section 20a is The rotating frame 6 is formed in an arc shape drawn around the center of rotation. The rear bed portion 20b is laid on the rear upper surface of the fixed frame 1, and the front end surface thereof is formed in an arc surface centered on the center of rotation of the rotating frame 6, and has a concave shape in plan view. The projections (c) and (d) on both left and right sides of the rear bed 20b are inclined so as to become lower toward the front ends on both ends with respect to other parts. Next, 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 protruding frame 22 will be described. Each of these support frames 21a and 21
The cam rollers 35 and 36 are rotatably mounted on the lower surface side of the b through brackets 33 and 34, respectively, via horizontal shafts. Further, a cam body 37 that contacts the cam roller 35 is fixed to the right end side of the horizontal frame 18 integrated with the screw cylinder 13, and a cam body 38 that contacts the cam roller 36 is fixed to the left side of the screw cylinder 13. When the screw shaft 13 is rotated by the motor 10 to advance the screw cylinder 13, the cam body 38
The cam roller 36 is pushed on the front end standing surface of the back support frame 2.
1b gradually rotates rearward, and at substantially the same time, the cam body 35 gradually scoops up the cam roller 35 to slightly rotate the rear side of the waist support frame 21a upward. And the eighteenth
Shortly before the state shown in the figure, the cam pin 19 inserted into the hole 18a or 18b on one side of the horizontal frame 18 is used.
Is the fixed cam 9a or 9b located on the pin 19 side.
After that, when the screw cylinder 13 moves forward and the pin 19 approaches the deflecting portion of the cam groove, the turning frame 6 starts to turn left or right.
Then, at the time when it is rotated approximately 45 degrees, the back support frame 2
The pivot frame 6 further pivots while the hip support frame 21a gradually inclines while 1b falls down so that the inclination becomes slightly gentle. Thereafter, the rotating frame 6 is substantially 90
When the final rotation posture is reached, the back support frame 21 b
The side is in the vertical state, and the waist receiving support frame 21a returns 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 so that the switch box 39 can be freely operated by a cord at any position so as to be operated by a physically handicapped person, an elderly person, or a caregiver on the bed. The rotation direction of the screw shaft 12 can be changed freely, and the screw cylinder 13 can be moved forward or backward. Reference numeral 40 denotes leather or synthetic rubber or the like which is provided on one or both end faces between the convex arc end face of the front bed part 20a and the concave arc end face of the rear bed part 20b to smoothly rotate the both. 3 shows a sliding member. Next, the operation of the above example will be described in detail. Sleeper 20
Handicapped and elderly people on the front bed 20a
The upper body is laid on the side from the waist and the legs are received by the rear bed portion 20b, and the upper body is put to sleep. 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 If you want to take the posture
Are inserted through the left hole 18a of the horizontal 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 advanced. 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 cam roller 36 attached to the back support frame 21b via the bracket 34 is cammed. 16 to 16 in contact with the front of body 38
As shown in the operation process up to FIG. 18, each of the support frames 21a and 21b is rotated, and the upper body for eating and reading in the sitting position shown in FIGS. 21 and 22 is lifted. It becomes a posture to wake up. If you only want to take this position,
The cam pins 19 need not be inserted through the holes 18a and 18b. Next, when the motor 10 is further rotated from this state to advance the screw cylinder 13, the cam pin 19 is displaced in the cam groove (a) of the left-side fixed cam 9a provided on the fixed frame 1 side of the bed. 13 through the state of FIG. 13 through the state of FIG. 14 and the frame 16 on which the motor 10 is mounted and the rotating frame 6 integrated with the frame 16 as shown in FIG. On the other hand, it turns to the right (arrow E side) to the state shown in FIGS. When the state shown in FIG. 14 is reached during the rotation, the relative positions of the cam rollers 35 and 36 and the cam bodies 37 and 38 are in the state shown in FIG. 18. 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 FIG. 14 to FIG. 15, and rotates 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, 36 and the cam bodies 37, 38 is changed from the state shown in FIG.
0, the back support frame 21b side is slightly rotated rearward at one end, and at the same time, the waist support frame 21a side is slightly raised rearward, and then the back support frame 21b side rises again at the same time. The waist support frame 21a is in a horizontal state. That is, the sleeping person finally reaches the posture of FIG. 23 through the state of FIG. In order to return the original bed to the front-back direction from the posture shown in FIG. 23, when the motor 20 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, in order to turn the rotating frame 6 in the reverse direction so that the side on which it descends is reversed, 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. However, in the operation steps from FIG. 22 to FIG. 23, the front bed portion 20a is moved to the lower back support frame 21a and the back support frame 21b.
Is operated in the state shown in FIGS. 18 to 20 as described above, so that the person on the bed slightly lifts the thigh near the waist on the bed supported by the distal end side of the hip support frame 21a. By swinging upward, the foot side is prevented from rotating while being entirely rubbed on the fixed side rear bed portion 20b, and the foot opposite to the rotating direction is fixed to the rear side bed portion 20b. Prevents your legs from getting caught and twisting. Also, 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 thereafter the hip support frame 21a is leveled. They are trying to stand upright as soon as they return. Therefore, the person who is finally sleeping can be brought to the side of the bed with the posture shown in FIG. In this position, the floor 41
In order to descend on the surface, if the turning handrail portion 29b is turned into the imaginary line in FIG. 11 and into the bed shown in FIG. 23 itself, the turning handrail portion 29b is grasped on the floor 41 without difficulty. I can get off. In order to prevent the pillow 42 placed on the front side of the bed and other books placed on the bedside from falling when the front bed portion 20a is rotated and bent, the link mechanism 2 is used.
7 is attached to the bracket 2 of the projecting frame 22 by the base side of the rod 27a.
2a, when the back support frame 21b rotates upward, as shown by the phantom line in FIG.
Since 1c always keeps the horizontal posture, the head support frame 21c hardly changes in the posture as shown in FIG. 21 or FIG. 22, preventing the pillow 42 and other objects placed on the bedside from slipping down. it can.

[Brief description of the drawings]

FIG. 1 is a 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. 3;

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 of FIG. 6;

FIG. 8 is a side view of a main part showing a mounting state of the back support frame.

FIG. 9 is a side view of a handrail.

FIG. 10 is a side view showing a handrail rotating mechanism.

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

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

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

FIG. 14 is a plan view showing a turning process diagram of the operating mechanism of the turning frame.

FIG. 15 is a plan view showing a turning process diagram of the operating mechanism of the turning frame.

FIG. 16 is a side view of the main part showing the operation and steps of the bending operation of the front bed portion.

FIG. 17 is a side view of the main part showing the operation and steps of the bending operation of the front bed portion.

FIG. 18 is a side view of the main part showing the operation and steps of the bending operation of the front bed portion.

FIG. 19 is a side view of the main part showing the operation and steps of the bending operation of the front bed portion.

FIG. 20 is a side view of the main part showing the operation and steps of the bending operation of the front bed portion.

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 for eating or the start of rotation.

FIG. 23 is a side view of a state in which the rotating frame has completed rotating and a person stands on the floor, or a state in which the caregiver is carrying or hugging;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed frame 6 Rotating frame 10 Motor 12 Screw shaft 13 Screw cylinder 20a Front bed part 20b Rear bed part 21 Front bed support frame 21a Waist support frame 21b Back support frame

Claims (1)

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