JP2004016474A - Transfer aiding apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer aiding apparatus which is inexpensively produced, and consists of a simple structure, and with which a transfer is reliably performed even when a belt is loosened. <P>SOLUTION: This transfer aiding apparatus for pushing out a slide table 1 with a person laid thereon in a horizontal direction in order to assist a transfer work includes: a table push-out pneumatic actuator 2 for supporting the slide table 1, and pushing it out in a push-out direction; a base 15 for supporting the table push-out pneumatic actuator 2; a table roller 3 arranged in the slide table 1; fixing rollers 4a-4f disposed in the base 15; mobile rollers 6 to be relatively movable with respect to the base 15; the belt 7 stretched over the table roller 3, the fixing rollers 4a-4f, and the mobile rollers 6; and a headless cylinder 8 for moving the mobile rollers 6 in a reciprocative manner in a direction to loosen or tighten the tension of the belt 7. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a transfer assisting device, and more particularly to a transfer assisting device suitable for transferring a patient who is lying on a bed in a hospital or the like to an operating table or another bed.
[0002]
[Prior art]
As this type of transfer assisting device, for example, one described in Japanese Patent Application Laid-Open No. 2001-37815 is known. FIG. 6 shows the configuration of this prior art.
[0003]
In the figure, reference numeral 01 denotes a lower transfer plate, one end of which is connected to a drive belt 02 which rotates by a drive mechanism (not shown). 03 is a lower transfer belt surrounding the lower transfer plate 01. Reference numeral 04 denotes a middle transfer plate having one end connected to the lower transfer plate 01 and a connection portion moving from one end to the other end of the lower transfer plate 01 as the lower transfer plate 01 moves. Reference numeral 05 denotes an upper transfer plate connected to the middle transfer plate 04. Reference numeral 06 denotes a pair of moving rollers, one end of which is fixed to the drive belt 02 and which moves in the opposite direction to the lower transfer plate 01. Reference numeral 07 denotes a central transfer unit which is guided from a lower portion of the central transfer plate 04 to a path which is passed over a pair of moving rollers 06 from between the central transfer plate 04 and the upper transfer plate 05, and both ends of which are fixed. It is a belt. Reference numeral 08 denotes an upper transfer belt stretched between the upper transfer plate 05 and the pair of moving rollers 06.
[0004]
That is, in this conventional technique, the lower transfer plate 01 is reciprocated by rotating the drive belt 02 by the drive mechanism. By rolling the lower transfer belt 03 along with the reciprocating movement of the lower transfer plate 01, the connecting portion between the lower transfer belt 03 and the middle transfer belt 07 is connected to one end of the lower transfer plate 01 from the other end. The central transfer plate 04 is reciprocated by moving to the end side. The upper transfer plate 05 is reciprocated with the reciprocation of the middle transfer plate 04.
[0005]
[Problems to be solved by the invention]
However, in the above-described prior art, there is a problem that the device is complicated and the manufacturing cost is high due to the structure in which the driving belt 02 is rotated by a driving device such as a motor.
[0006]
Further, when the lower transfer belt 03, the middle transfer belt 07, or the upper transfer belt 08 bends due to long-term use, the power transmission efficiency from the drive mechanism to each of the belts 03, 07, 08 decreases, and The belts 03, 07, 08 may come off the moving roller 06 or other rollers.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object the purpose of a transfer assistant which can be manufactured at a low cost with a simple structure and which can reliably transfer even if a belt is bent. It is to provide a device.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, in the invention according to claim 1 of the present invention, in a transfer assisting device that pushes out a table on which a person is placed in a horizontal direction to assist transfer operation, the table is supported and pushed in a pushing direction. A table pushing pneumatic actuator to be urged, a base supporting the table pushing pneumatic actuator, a table roller provided on the table, a fixed roller provided on the base, and a movement relatively movable with respect to the base. A roller, a belt wound around the table roller, the fixed roller and the moving roller, and a belt adjusting pneumatic actuator for reciprocating the moving roller in a direction to loosen and tension the belt, and The roller, fixed roller and moving roller When the tension is tension acts extrusion direction opposite the direction of the force of the table to the table rollers, the table is characterized by being configured to move the extrusion direction in the opposite direction.
[0009]
According to the second aspect of the present invention, in the transfer assisting apparatus according to the first aspect, the table has a rotating shaft perpendicular to a direction in which the table is pushed out, and a number of rotating bodies that rotate vertically. It is characterized by comprising.
[0010]
According to a third aspect of the present invention, in the transfer assisting apparatus according to the first or second aspect, a plurality of the belt adjusting pneumatic actuators are set, and each of the belt adjusting pneumatic actuators has a displacement of a table pushing amount. And a rack-and-pinion type positioning means for preventing the above-mentioned problem.
[0011]
According to a fourth aspect of the present invention, in the transfer assistance device according to any one of the first to third aspects, the base extends from the base in a direction in which the table is pushed out, and comes into contact with the floor surface. It is characterized by having a fall prevention means for supporting
[0012]
According to a fifth aspect of the present invention, in the transfer assistance device according to any one of the first to fourth aspects, the pneumatic actuator for adjusting the belt is a rodless cylinder.
[0013]
【The invention's effect】
In the present invention, when the moving roller is moved in a direction to loosen the tension of the belt, the table is pushed out in the horizontal direction by the pressing force of the table pushing pneumatic actuator. On the other hand, when the moving roller is moved in a direction to tighten the belt tension against the pressing force of the table pushing pneumatic actuator, the table is pulled into the base side. By combining these operations, an operation of placing a person lying on a bed on a table or an operation of transferring a person placed on a table to another place can be performed.
[0014]
That is, the transfer assisting device of the present invention has a simple structure in which the table is pressed by the pneumatic actuator for extruding the table, and the moving roller is reciprocated by the pneumatic actuator for adjusting the belt. Work can be done.
[0015]
In the present invention, only a pneumatic actuator is used as a power source. In general, a pneumatic actuator has a high output / weight ratio, is advantageous in reducing the size and weight of the system, and is inexpensive and easy to construct a system. In addition, the structure can be simplified, and the manufacturing cost can be reduced and the manufacturing cost can be reduced.
[0016]
In addition, since the table is pushed out using air pressure, it is suitable for a situation where flexibility of transfer assistance is required. For example, by setting the pushing force of the pneumatic actuator for pushing out the table as small as possible within the range in which the pushing out of the table is possible, even if the table comes into contact with the human body when pushing out the table, No more injuries.
[0017]
In addition, since the belt is constantly tensioned by the pneumatic actuator for pushing the table, even when the belt is bent over a long period of use, the belt does not loosen. Therefore, it is possible to prevent a malfunction, a failure, and the like due to the deflection of the belt.
[0018]
According to the second aspect of the present invention, when the table is pushed out and the person is placed on the table, the rotating body rotates in the direction opposite to the pushing direction of the table due to friction with the person, so that the work of placing the person can be performed smoothly. Can be. On the other hand, when the table is pulled in and the person placed on the table is lowered, the rotating body rotates in the direction opposite to the direction in which the table is drawn by the frictional force with the person, so that the operation of lowering the person can be performed smoothly. Further, since a large frictional force is not generated between the person and the table, the person is not injured.
[0019]
According to the third aspect of the present invention, the amount of movement of the moving roller by each pneumatic actuator for belt adjustment can be kept constant by meshing the rack and the pinion, and the table can be uniformly pushed out.
[0020]
According to the fourth aspect of the present invention, it is possible to prevent the device from falling when the table is pushed out and a person is put on or the person is lowered.
[0021]
According to the fifth aspect of the present invention, the use of the rodless cylinder requires only about half the space as compared with a normal air cylinder, so that the size of the apparatus can be reduced.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment for realizing a transfer assistance device according to the present invention will be described below with reference to the drawings.
First, the configuration will be described.
FIG. 1 is a side view showing the transfer assistance device according to the present embodiment, and FIG. 2 is a plan view showing the transfer assistance device according to the present embodiment. Note that the transfer assistance device of the present embodiment has a symmetrical shape when viewed from the longitudinal direction, so only one side will be described.
[0023]
In the figure, 1 is a slide roller table, 2 is a pneumatic actuator for table pushing, 3 is a table roller, 4a to 4f are fixed rollers, 5a to 5c are belt lock devices, 6 is a moving roller, 7 is a belt, and 8 is a rodless. Cylinder (pneumatic actuator for belt adjustment), 9 is a position adjusting device, 10 is a caster for movement, 11 is an air reserve tank for replenishing air, 12 is an air compressor, 13 is an operation box, 14 is an overturn prevention device, 15 is A base 16 constituting a frame of the apparatus is a sensor.
[0024]
The slide table 1 has a size large enough to allow an adult to ride while lying down. The table roller 3 is rotatably provided at an end of the slide table 1 in the pushing direction. The belt 7 is stretched between the table roller 3 and the fixed roller 4a provided at the rear end of the cylinder tube of the table pushing pneumatic actuator 2.
[0025]
Eight pipes 1b are arranged at equal intervals between the table roller 3 and the fixed roller 4a. Both ends of these pipes 1b are rotatably supported by a two-stage extending linear rail 1a that is cantilevered by the base 15. Further, both ends of the table roller 3 are supported by the rod ends of the pneumatic actuator 2 for pushing the table.
[0026]
The table pushing pneumatic actuator 2 is a rod-shaped actuator in which a rod extends in two stages, and a cylinder tube is supported by the base 15. The pneumatic actuator 2 for pushing the table is constantly urged by a low pressure air in a direction to push the rod. Thus, the slide table 1 is constantly pressed in the pushing direction (the direction of the arrow in the drawing).
[0027]
All of the fixed rollers 4a to 4f are fixed to the base 15, and the belt 7 is stretched. The fixed roller 4a is provided at the rear end of the cylinder tube of the pneumatic actuator 2 for pushing the table as described above. The fixed roller 4b is provided immediately below the fixed roller 4a. The fixed roller 4c has the same height as the fixed roller 4b, and is provided on the slide table 1 in the pushing direction side (the right side in FIG. 1) of the fixed roller 4b. Above the fixed roller 4c, three fixed rollers 4d, 4e, and 4f are provided in order from the top.
[0028]
The belt lock devices 5a to 5c are fixed to the base 15 in the vicinity of three fixed rollers 4d, 4e, 4f located below the table roller 3, respectively. In these belt lock devices 5a to 5c, a substantially U-shaped block is attached to the tip of a rod of an air cylinder. The belt 7 is extended by extending the rod and pressing the block against the fixed rollers 4d, 4e, 4f. To prevent the movement of Air is supplied to these belt lock devices 5a to 5c from the air compressor 12 via a regulator and an air filter (not shown).
[0029]
The moving roller 6 is for adjusting the tension of the belt 7 by reciprocating in parallel with the moving direction of the slide table 1 so as to adjust the pushing amount of the slide table 1. 8 are provided side by side in the vertical direction. A belt 7 is stretched around these moving rollers 6 with the fixed roller 4f interposed therebetween.
[0030]
The rodless cylinder 8 is for moving the moving roller 6 in parallel. A cylinder 8 a is arranged in parallel with the moving direction of the slide table 1, and both ends thereof are fixed to the base 15. The moving roller 6 is attached to a slider 8b that reciprocates in the cylinder 8a. This rodless cylinder 8 is also supplied with air from the air compressor 12 as in the case of the belt lock devices 5a to 5c.
[0031]
The position adjusting device 9 adjusts the positions of the two rodless cylinders 8, and a rack 9a is provided on the base 15 side and a pinion 9b is provided on the rodless cylinder 8 side.
[0032]
The tipping prevention device 14 is for preventing the device from tipping over. The tip end of an air cylinder 14a extending from the base 15 in the pushing direction of the slide table 1 is provided with an air cylinder 14b extending toward the floor. Configuration. These two air cylinders 14a and 14b are supplied with air from the air compressor 12, similarly to the above-described belt lock devices 5a to 5c and the rodless cylinder 8.
[0033]
The operation box 13 is for supplying air to the rodless cylinder 8 and setting / releasing the overturn prevention device 14 by a switch operation.
[0034]
The sensor 16 is for detecting the position of the patient, and is attached to the tip of the pneumatic actuator 2 for pushing the table.
[0035]
Next, the operation will be described.
[Return to home position with patient on]
The slide table 1 is at the original position shown in FIG.
First, the apparatus is moved to the side of the bed on which the patient is lying, and the fall prevention device 14 is set. That is, the rod of the air cylinder 14a is extended, and subsequently, the rod of the air cylinder 14b is extended to bring the rod tip into contact with the floor surface.
[0036]
Then, as shown in FIG. 3, the slider 8b of the rodless cylinder 8 is moved in the pushing direction of the slide table 1 with the belt lock device 5a turned on and the belt lock devices 5b and 5c turned off. Then, the belt 7 bends and the slide table 1 is pushed out to the bed side by the pressing force of the table pushing air pressure actuator 2.
The slide table 1 may be pushed out with the belt lock device 5b turned on and the belt lock devices 5a and 5c turned off.
[0037]
After the extrusion of the slide table 1 is completed, the belt lock device 5a is turned on, the belt lock devices 5b and 5c are turned off, and the slide table 1 is retracted.
At this time, since the movement of the belt 7 from the fixed roller 4e to the moving roller 6 is prevented by the belt lock device 5a, the deflection of the belt 7 is fixed roller 4a → fixed roller 4b → fixed roller 4c → movement. It moves to the roller 6. That is, the belt 7 moves in the direction in which the patient is placed on the slide table 1, and the pipe 1b of the slide table 1 rotates in the direction in which the belt 7 moves, so that the patient can be placed easily.
[0038]
Next, as shown in FIG. 4, when the patient's body crosses the sensor 16, that is, when the patient is completely placed on the pipe 1b of the slide table 1, the belt lock device 5b is turned on. The slide table 1 is pulled in with the belt lock devices 5a and 5c turned off.
[0039]
At this time, since the amount of deflection of the belt 7 is the same amount above and below the fixed roller 4f locked by the belt lock device 5b, when the slide table 1 is pushed out, the patient does not move on the slide table 1. Therefore, it is possible to prevent the patient from falling off the pipe 1b.
[0040]
Further, the pushing amount of the slide table 1 is performed by two rodless cylinders 8, but the rodless cylinder 8 is provided with a position adjusting device 9 including a rack 9a and a pinion 9b. The moving amount of the rodless cylinder 8 is the same, and the pushing amount of the slide table 1 is always kept uniform.
[0041]
[When lowering the patient to a predetermined position]
First, the apparatus is placed beside a bed, and the fall prevention device 14 is set.
Next, as shown in FIG. 5, the slide table 1 is pushed out to the bed side with the belt lock device 5b turned on and the belt lock devices 5a and 5c turned off.
[0042]
At this time, since the amount of deflection of the belt 7 is the same amount above and below the fixed roller 4f locked by the belt lock device 5b, when the slide table 1 is pushed out, the patient does not move on the slide table 1.
[0043]
After the extrusion of the slide table 1 is completed, the belt lock device 5c is turned on, the belt lock devices 5a and 5b are turned off, and the slide table 1 is retracted.
[0044]
At this time, since the movement of the belt 7 from the fixed roller 4c side to the moving roller 6 is prevented by the belt lock device 5c, the deflection of the belt 7 is changed from the table roller 3 → the fixed roller 4d → the fixed roller 4e → the movement. It moves to the roller 6. That is, the belt 7 moves in the direction of lowering the patient from the slide table 1 to the bed, and the pipe 1b of the slide table 1 rotates in the direction of movement of the belt 7, so that the patient can be easily lowered.
[0045]
Next, effects will be described.
In the transfer assistance device of the present embodiment, the effects listed below can be obtained.
[0046]
(1) A simple structure in which the slide table 1 is urged in the pushing direction by a weak pressure by the table pushing air pressure actuator 2 and the moving roller 6 is reciprocated by the rodless cylinder 8 to adjust the tension of the belt 7. Thus, the assistance work can be performed by moving the slide table 1.
[0047]
(2) Since the tension is always generated in the belt 7 by the pneumatic actuator 2 for pushing the table, the belt 7 does not become loose even when the belt 7 is bent due to long-term use. Therefore, it is possible to prevent operation failure, failure, and the like due to the deflection of the belt 7.
[0048]
(3) Since the slide table 1 is composed of the plurality of pipes 1b, no large frictional force is generated between the patient and the slide table 1b, so that the transfer operation can be performed without imposing a burden on the patient.
[0049]
(4) Since the two rodless cylinders 8 are provided with the position adjusting device 9 including the rack 9a and the pinion 9b, the pushing amount of the slide table 1 can be made uniform left and right.
[0050]
(5) Since the overturn prevention device 14 including the two air cylinders 14a and 14b is provided, the overturn of the device can be prevented.
[0051]
(Other embodiments)
As described above, the present invention has been described based on the embodiments. However, the specific configuration of the present invention is not limited to the embodiments, and even if there is a design change or the like without departing from the gist of the invention. Included in the invention.
[Brief description of the drawings]
FIG. 1 is a side view showing a transfer assistance device according to an embodiment.
FIG. 2 is a plan view showing the transfer assistance device according to the embodiment.
FIG. 3 is a side view showing an operation when placing a patient.
FIG. 4 is a diagram showing an operation when a patient is placed and the original position is returned.
FIG. 5 is a side view showing the operation when the patient is lowered.
FIG. 6 is a side view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Slide table 1a Two-stage extending linear rail 1b Pipe 2 Pneumatic actuator for table pushing 3 Table rollers 4a-4f Fixed rollers 5a-5c Belt lock device 6 Moving roller 7 Belt 8 Rodless cylinder 8a Cylinder 8b Slider 9 Position adjustment device 9a Rack 9b Pinion 10 Caster 11 Air reserve tank 12 Air compressor 13 Operation box 14 Fall prevention device 14a Air cylinder 14b Air cylinder 15 Base 16 Sensor

Claims (5)

In a transfer assistance device that pushes out a table on which a person is placed in the horizontal direction to assist the transfer operation,
A table pushing pneumatic actuator that supports the table and urges in the extrusion direction,
A base for supporting the pneumatic actuator for pushing the table,
A table roller provided on the table,
A fixed roller provided on the base,
A moving roller capable of moving relative to the base,
A belt wrapped around the table roller, fixed roller and moving roller,
A belt adjusting pneumatic actuator that reciprocates the moving roller in a direction to loosen the tension of the belt and a direction to tighten the belt,
When the tension of the belt is tensioned by the moving rollers, the force in the direction opposite to the pushing direction of the table acts on the table rollers, and the table moves in the direction opposite to the pushing direction. A mobility assistance device characterized in that it is set so as to perform. The transfer assistance device according to claim 1,
The transfer assistance device, wherein the table has a rotating shaft perpendicular to a direction in which the table is pushed out, and is constituted by a number of rotating bodies that rotate vertically. In the transfer assistance device according to claim 1 or 2,
Setting a plurality of the belt adjustment pneumatic actuator,
A transfer assistance device, wherein each belt adjusting pneumatic actuator is provided with a rack and pinion type positioning means for preventing a displacement of a table pushing amount. The transfer assistance device according to any one of claims 1 to 3,
A transfer assistance device comprising: a fall prevention unit extending from the base in a direction in which the table is pushed out, and abutting against a floor surface to support the base. The transfer assistance device according to any one of claims 1 to 4,
The transfer assist device, wherein the belt adjusting pneumatic actuator is a rodless cylinder.

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