JP2022076581A - Bed, and bed movement auxiliary device - Google Patents

Abstract

To provide a movement auxiliary device capable of assisting in movement of a bed; and to provide a bed equipped with the movement auxiliary device.SOLUTION: A bed movement auxiliary device 10 includes a base part 102 arranged on the side of a bottom surface of the bed, and forming a space between itself and the bottom surface, a battery 118 loaded on the space, multiple driving wheels 112 arranged on the under side of the base part 102, multiple motors 110 fixed to the base part 102, for driving the multiple driving wheels 112 respectively, and a drive control part 114 for controlling the multiple motors 110.SELECTED DRAWING: Figure 2

Description

The present invention relates to a bed and a bed mobility aid.

Patent Document 1 describes a bed carrier used when moving a bed. This bed carrier is characterized in that the direction of travel is controlled according to a command given by remote control, one end of the bed is lifted, and the bed is moved with the casters at the other end of the bed attached to the floor.

Patent Document 2 describes a bogie assist device that assists the running of a bogie such as a moving bed having a universal caster or a transport stretcher. This trolley assist device has a drive wheel that touches the floor to give driving force to the trolley, and is arranged at the rear of the trolley to rotate the drive wheel in the forward direction by operating the trolley in the forward direction. The rear side operation unit that controls the driving force applied to the trolley from the drive wheels in the forward direction according to the operation adjustment, and the rear side operation unit that is arranged at the front of the trolley and operates in the direction of retracting the trolley to move the drive wheels backward. It is characterized by being provided with a front-side operating unit that controls the driving force in the backward direction applied from the driving wheels to the trolley according to the degree of operation.

Japanese Unexamined Patent Publication No. 10-1463664 Japanese Unexamined Patent Publication No. 2009-1954

It is an object of the present invention to provide a movement assisting device capable of assisting the movement of the bed and a bed provided with the mobility assisting device.

The invention according to claim 1 is arranged on the side of the bottom surface of the bed, the base portion forming a space between the bottom surface, the battery mounted in the space, and the lower side of the base portion. A bed movement assisting device including a plurality of drive wheels, a plurality of motors fixed to the base portion for driving the plurality of drive wheels, and a drive control unit for controlling the plurality of motors. ..

The invention according to claim 2 is a base portion which is arranged on the bottom surface side of the bed and forms a space in which a battery can be mounted between the base portion and a plurality of drives attached to the lower side of the base portion. It is a bed movement assist device including wheels, a plurality of motors fixed to the base portion and driving the plurality of drive wheels, and a drive control unit for controlling the plurality of motors.

According to a third aspect of the present invention, in the movement assisting device for a bed according to claim 1 or 2, the base portion is provided on the side surface of the bed and extends in the front-rear direction at intervals, respectively. Supports 2 frames.

The invention according to claim 4 further includes a support member extending from the base portion to a third frame connecting the first and second frames to each other in the movement assist device for the bed according to claim 3.

The invention according to claim 5 is a plurality of stud bolts in which the support members are provided at intervals in the movement assist device for the bed according to claim 4.

The invention according to claim 6 is the bed movement assist device according to claim 3, wherein the drive wheel is an omni wheel, a mecanum wheel, or a Mobius wheel.

The invention according to claim 7 is the bed movement assist device according to claim 1, wherein the operation unit is connected to the drive control unit and includes an operation unit for instructing the movement direction of the bed. , The front side member provided so as to extend to a position higher than the floor plate or the surface corresponding to the floor plate at the front end of the bed, or the floor plate or the floor plate at the back end of the bed. It is attached to the back side member provided so as to extend to a position higher than the surface to be laid.

According to the eighth aspect of the present invention, in the bed movement assisting device according to the seventh aspect, the operation unit outputs a command for moving forward, a first operation device for outputting a command for moving forward, and a command for moving in parallel to the left. The second actuator, the third actuator that outputs a command for moving in parallel to the right, and the fourth actuator that outputs a command for retreating, the first to fourth actuators are the front surface. Seen from the side, they are arranged side by side in order.

The invention according to claim 9 is the drive control unit according to claim 8, when the third operator is operated while the second operator is being operated in the bed movement assist device according to claim 8. However, when the drive wheel is controlled so as to rotate counterclockwise and the second actuator is operated while the third actuator is being operated, the drive control unit rotates clockwise. The drive wheel is controlled.

The invention according to claim 10 is the first operation unit and the second operation for indicating the movement direction of the bed, which are connected to the drive control unit, respectively, in the movement assist device for the bed according to claim 6. The first operating portion is attached to a front side member provided at the front end of the bed so that the upper end thereof extends to a position higher than the floor plate or the surface corresponding to the floor plate. The second operation unit is attached to a back surface member provided at an end portion on the back surface side of the bed so that an upper end portion extends to a position higher than the floor plate or a surface corresponding to the floor plate.

The invention according to claim 11 is a bed provided with a movement assist device for assisting movement, in which the movement assist device is arranged on the side of the bottom surface of the bed and a space is provided between the bed and the bottom surface. A base portion to be formed, a battery mounted in the space, a plurality of drive wheels arranged under the base portion, and a plurality of motors fixed to the base portion to drive the plurality of drive wheels, respectively. A bed including a drive control unit for controlling the plurality of motors.

According to the present invention, it is possible to provide a movement assist device capable of assisting the movement of the bed and a bed provided with the movement assist device.

It is a perspective view seen from the upper side of the movement assisting device of a bed which concerns on one Embodiment of this invention. It is a perspective view seen from the lower side of the movement aid. It is a left side view of the movement aid. It is a front view of the movement assist device. It is a bottom view of the movement assist device.

Subsequently, an embodiment embodying the present invention will be described with reference to the attached drawings, and the present invention will be understood. In the figure, parts not related to the description may be omitted.

As shown in FIGS. 1 to 5, the bed movement assist device (hereinafter, simply referred to as “movement assist device”) 10 according to the embodiment of the present invention is retrofitted to the existing bed 12 and is attached to the bed 12. It can assist in movement.
Here, the bed 12 is, for example, a bed used in a hospital room. The beds 12 are provided at both ends of each side frame 122, a pair of side frames 122 provided on each side and extending in the front-rear direction at intervals, a connecting frame 124 connecting the pair of side frames 122 to each other, and a pair of side frames 122. It has a total of four legs 126.
The mobility assist device 10 includes a base plate 102, support members 106a, 106b, 106c, a motor 110, a drive wheel 112, a drive control unit 114, an operation unit, and a battery 118.

The base plate (an example of the base portion) 102 is a frame formed by bending a plate arranged on the bottom surface side of the bed 12. The base plate 102 forms a space in which the battery 118 can be mounted between the base plate 102 and the bottom surface of the bed 12.
As shown in FIG. 2, the base plate 102 has a fixing portion 102a, an inclined portion 102b, and a supporting portion 102c.
The fixing portion 102a is a portion having a surface substantially parallel to the bottom surface of the bed 12.
As shown in FIG. 4, the inclined portion 102b is a portion extending diagonally upward from the end of the fixed portion 102a when viewed from the front.
As shown in FIG. 2, the support portion 102c is a portion extending upward from the end of the inclined portion 102b. The support portion 102c is fixed to the pair of side frames 122 via the first fixing member 104a and the second fixing member 104b, and can support the pair of side frames 122.

The details of the mounting structure of such a base plate 102 are as follows.
The upper side of the support portion 102c of the base plate 102 contacts the outer side surface of the side frame 122, respectively.
The first fixing member 104a is an angle-shaped member and comes into contact with the lower surface of the side frame 122.
The second fixing member 104b is a channel-shaped member, is arranged on the upper surface side of the side frame 122, the outside is screwed to the lower side of the support portion 102c, and the inside is screwed to the first fixing member 104a. As a result, the upper side of the support portion 102c and the side frame 122 are fixed in a sandwiched state.

Therefore, the mobility aid 10 can be attached to beds of various sizes simply by changing the dimensions of the base plate 102, the first fixing member 104a, and the second fixing member 104b.
Further, since the inclined portion 102b extends diagonally upward from the end of the fixed portion 102a when viewed from the front, a space S (see FIG. 4) is secured on the lower side of both side portions of the bed 12, for example, on the side of the bed 12. Interfering with the movements of working nurses is suppressed.

The support members 106a, 106b, 106c can support the connecting frame 124. That is, the support members 106a, 106b, 106c can support the bed 12 together with the support portion 102c of the base plate 102.
The support members 106a, 106b, and 106c are rod-shaped stud bolts extending in the vertical direction, respectively, and are arranged at intervals in the direction in which the connecting frame 124 extends. One end of each of the support members 106a, 106b, 106c is fixed to the fixing portion 102a, and the other end is fixed to the connecting frame 124 via the fixing members 108a, 108b, 108c.

As shown in FIG. 5, the motors 110 are attached to the lower surface of the fixing portion 102a of the base plate 102 via brackets, respectively. The motor 110 is a servo motor.

The drive wheels 112 are four mecanum wheels arranged below the fixed portion 102a of the base plate 102, each of which is driven by a motor 110.
The drive wheel 112 is not limited to the Mecanum wheel, but may be an omni wheel or a Mobius wheel.

The drive control unit 114 has a motor driver (not shown) for supplying a current for driving the motor 110 and a controller (not shown) for controlling the motor driver, and can control each motor 110.
The drive control unit 114 is unitized and attached to the lower surface of the fixing portion 102a of the base plate 102.

The operation unit is electrically connected to the drive control unit 114, and as shown in FIG. 1, the front side operation unit (an example of the first operation unit) 116a, 116b, 116c, for instructing the moving direction of the bed 12. It has 116d and a rear side operation device (an example of a second operation unit) 117a, 117b, 117c, 117d.
The operation unit may have only one of the front side actuators 116a, 116b, 116c, 116d and the rear side operation units 117a, 117b, 117c, 117d.

The front side operators 116a, 116b, 116c, and 116d (an example of the first to fourth operators, respectively) are beds at the end of the front side of the bed 12 (the foot side of the user sleeping on the bed 12). Twelve floor plates or front end members 128a provided so as to extend to a position higher than the surface corresponding to the floor plate are attached side by side at intervals from the left when viewed from the front side. The front side member 128a may be a footboard.
The positions where the front side actuators 116a, 116b, 116c, and 116d are attached are preferably within the range where the feet of the user sleeping on the bed 12 cannot reach.

The front side operating devices 116a, 116b, 116c, and 116d are operating devices for advancing, left parallel movement, right parallel movement, and retreating, respectively, in order from the left side when viewed from the front side of the bed 12. However, the arrangement of the front side actuators 116a, 116b, 116c, 116d is not limited to this.

The front side operators 116a, 116b, 116c, and 116d have a first push button switch protruding to the front side and a second push button protruding to the back side (the head side of the user sleeping on the bed 12), respectively. A button switch is provided. When the first push button switch or the second push button switch of the front side controllers 116a, 116b, 116c, 116d is pressed, a command for forward movement, a command for left parallel movement, and a right parallel movement are performed, respectively. The command for retreating and the command for retreating are output, and the output command is input to the controller.

The rear side operating devices 117a, 117b, 117c, and 117d (an example of the first to fourth operating devices, respectively) are located at the rear end of the bed 12 at a position higher than the floor plate of the bed 12 or the surface corresponding to the floor plate. It is attached to the upper end portion of the back side member 128b extending to the front side side by side at intervals from the left when viewed from the front side. The back surface member 128b may be a headboard.
The position where the rear side actuators 117a, 117b, 117c, and 117d are attached is preferably within the reach of the user sleeping on the bed 12.

The rear side operating devices 117a, 117b, 117c, and 117d are operating devices for advancing, left parallel movement, right parallel movement, and retreating, respectively, in order from the left side when viewed from the front side of the bed 12. However, the arrangement of the rear side actuators 117a, 117b, 117c, and 117d is not limited to this.

The rear side operators 117a, 117b, 117c, and 117d are provided with a first push button switch projecting to the front side and a second push button switch projecting to the rear side, respectively. When the first pushbutton switch or the second pushbutton switch of the rear controller 117a, 117b, 117c, 117d is pressed, a command for forward movement, a command for left parallel movement, and a right parallel movement, respectively. The command for retreating and the command for retreating are output, and the output command is input to the controller.

The battery 118 is mounted on the upper surface of the inclined portion 102b of the base plate 102. That is, the battery 118 is mounted in the space formed between the base plate 102 and the bottom surface of the bed 12.
Therefore, since the vibration generated by the traveling of the mobility assist device 10 is alleviated by the fixed portion 102a, the occurrence of defects due to the vibration is suppressed as compared with the case where the battery 118 is mounted on the fixed portion 102a.

Such a mobility assist device 10 is set so that the dimension from the ground contact surface of the drive wheel 112 to the bottom surface of the bed 12 is larger than the dimension from the tip of the leg portion 126 of the bed 12 to the bottom surface of the bed 12. ..
Therefore, the bed 12 to which the mobility assist device 10 is mounted is supported by the drive wheels 112 with the legs 126 raised from the floor surface by the dimension h (see FIG. 3).

Next, the operation of the mobility assist device 10 will be described.
First, as a preliminary preparation, the mobility aid 10 is attached to the existing bed 12.
Since it is not necessary to process the frame of the bed 12 when the mobility assist device 10 is attached to the existing bed 12, it is possible to suppress a decrease in the strength of the bed 12.
Further, even if the mobility assist device 10 is attached to the existing bed 12, the outer shape (length and width) excluding the height is only slightly larger, and the change is suppressed.

After installation, when the operator operates the front side actuators 116a, 116b, 116c, 116d or the rear side actuators 117a, 117b, 117c, 117d, a command corresponding to the operation is input to the controller of the drive control unit 114. To. The controller controls the motor driver based on the input command to drive the motor 110.
As a result, the bed 12 to which the movement assist device 10 is mounted moves in a desired direction according to the operation of the operator described later.
Since the actuators are provided on the front side and the back side, each operator has a first push button switch protruding to the front side and a second push button switch protruding to the back side. A wide range of standing positions that can be operated by the operator is secured, and the operation can be performed even in a small room, for example.

Operation of front side operators 116a, 116b, 116c, 116d or rear side operation units 117a, 117b, 117c, 117d for moving the mobility aid 10 forward, left parallel movement, right parallel movement, backward rotation, left rotation and right rotation. Is as follows.
However, since the rear side operators 117a, 117b, 117c, and 117d are arranged side by side in the same direction corresponding to the front side operators 116a, 116b, 116c, 116d, respectively, the front side operators 116a, 116b, Only 116c and 116d will be described.

(1) Forward The first push button switch protruding toward the front side of the front side actuator 116a or the second push button switch protruding toward the back side is operated.
When the operator of the mobility assist device 10 stands on the front side of the bed 12 and operates it, he / she puts his / her left hand on the horizontally extending portion of the front side member 128a and pushes the first push button switch with his / her thumb. As a result, the direction of operation with the thumb and the direction of movement of the bed 12 match, so that intuitive operation is possible.

(2) Left parallel movement Operate the first push button switch protruding to the front side or the second push button switch protruding to the back side of the front side actuator 116b.

(3) Right parallel movement Operate the first push button switch protruding to the front side or the second push button switch protruding to the back side of the front side actuator 116c.

(4) Retreat Operate the first push button switch projecting to the front side or the second push button switch projecting to the rear side of the front side actuator 116d.
When the operator of the movement assisting device 10 stands on the front side of the bed 12 and operates the bed 12, the second push button switch is used with a finger other than the thumb by placing the right hand on the horizontally extending portion of the front side member 128a. By pushing in, the direction of operation with the finger and the direction of movement of the bed 12 match, so that intuitive operation becomes possible.

(5) Left rotation The front side of the front side operator 116b (left parallel movement operation device) with the first push button switch protruding to the front side or the second push button switch protruding to the back side pressed. Press the first push button switch projecting to the front side or the second push button switch projecting to the back side of the controller 116c (right parallel movement controller).
When the operator of the movement assist device 10 stands on the front side of the bed 12 and operates it, the second push button of the front side operation device 116b (left parallel movement operation device) is operated with a finger other than the thumb of the left hand. Intuitive operation is possible by pushing the switch and then pushing the first push button switch of the front side controller 116c (right translation controller) with the thumb of the right hand.

(6) Right rotation With the first push button switch protruding to the front side or the second push button switch protruding to the back side of the front side controller 116c (right parallel movement controller) pressed, the front side Press the first push button switch projecting to the front side or the second push button switch projecting to the back side of the controller 116b (left parallel movement controller).
When the operator of the movement assisting device 10 stands on the front side of the bed 12 and operates it, the second push button of the front side operation device 116c (right parallel movement operation device) is operated with a finger other than the thumb of the right hand. Intuitive operation is possible by pushing the switch and then pushing the first push button switch of the front side controller 116b (left translation operator) with the thumb of the left hand.

As described above, according to the movement assisting device 10 according to the present embodiment, the movement can be assisted only by attaching to the existing bed 12.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and all changes in conditions that do not deviate from the gist are within the scope of the present invention.

10 Mobility Assistance Device 12 Bed 102 Base plate 102a Fixing part 102b Inclined part 102c Support part 104a First fixing member 104b Second fixing member 106a, 106b, 106c Support member 108a, 108b, 108c Fixing member 110 Motor 112 Drive wheel 114 Drive control unit 116a, 116b, 116c, 116d Front side actuator 117a, 117b, 117c, 117d Rear side operator 118 Battery 122 Side frame 124 Connecting frame 126 Leg 128a Front side fence 128b Rear side fence

Claims (11)

A base portion that is placed on the side of the bottom surface of the bed and forms a space between the bottom surface and the base portion.
The battery mounted in the space and
A plurality of drive wheels arranged under the base portion,
A plurality of motors fixed to the base portion and driving the plurality of drive wheels, respectively.
A bed movement assist device including a drive control unit that controls the plurality of motors. A base part that is placed on the side of the bottom of the bed and forms a space where the battery can be mounted between the bottom and the base.
A plurality of drive wheels mounted on the lower side of the base portion,
A plurality of motors fixed to the base portion and driving the plurality of drive wheels, respectively.
A bed movement assist device including a drive control unit that controls the plurality of motors. In the bed movement assistance device according to claim 1 or 2.
A bed movement assist device in which the base portion is provided on the side surface of the bed and supports the first and second frames extending in the front-rear direction at intervals. In the bed movement assistance device according to claim 3,
A bed mobility aid further comprising a support member extending from the base to a third frame connecting the first and second frames to each other. In the bed movement assistance device according to claim 4,
A bed movement aid in which the support members are a plurality of stud bolts provided at intervals. In the bed movement assistance device according to claim 3 or 4.
A bed mobility aid in which the drive wheel is an omni wheel, a mecanum wheel, or a Mobius wheel. In the bed movement assistance device according to claim 1 or 2.
It is connected to the drive control unit and includes an operation unit for instructing the moving direction of the bed.
The floor plate or the floor plate or the operation portion is provided at the front end of the bed so as to extend to a position higher than the floor plate or the surface corresponding to the floor plate, or at the back end of the bed. A bed movement assist device attached to a rear member provided so as to extend to a position higher than the surface corresponding to the floor plate. In the bed movement assistance device according to claim 7.
The operation unit outputs a command for moving forward, a second operation device for outputting a command for left parallel movement, and a third operation device for outputting a command for right parallel movement. And a fourth manipulator that outputs commands to retreat.
A bed movement assist device in which the first to fourth actuators are arranged side by side in order when viewed from the front side. In the bed movement assistance device according to claim 8,
When the third actuator is operated while the second actuator is being operated, the drive control unit controls the drive wheels so as to rotate counterclockwise.
A bed movement assist device that controls the drive wheels so that the drive control unit rotates clockwise when the second actuator is operated while the third actuator is being operated. In the bed movement assistance device according to claim 6,
Each of them is connected to the drive control unit and includes a first operation unit and a second operation unit for instructing the moving direction of the bed.
The first operating portion is attached to a floor plate or a front side member provided at the front end of the bed so that the upper end thereof extends to a position higher than the surface corresponding to the floor plate.
The second operation unit assists the movement of the bed attached to the back surface member provided at the rear end of the bed so that the upper end thereof extends to a position higher than the floor plate or the surface corresponding to the floor plate. Device. A bed equipped with a mobility aid to assist in movement,
The movement assist device is arranged on the side of the bottom surface of the bed, and has a base portion forming a space between the bottom surface and the base portion.
The battery mounted in the space and
A plurality of drive wheels arranged under the base portion,
A plurality of motors fixed to the base portion and driving the plurality of drive wheels, respectively.
A bed including a drive control unit that controls the plurality of motors.

Images