JPS59124611A - Object transport device - Google Patents

Abstract

PURPOSE:To allow an endless belt to be driven for rotation at a fixed position by forming a support bed mainly with a frame enclosed by an endless belt above and an ended belt with both ends fixed below. CONSTITUTION:A support bed S is constituted with a frame 1 on which an object to be transported is mounted and enclosed by an endless belt 3 around the transport direction and supported movably in the horizontal direction against a fixed section 5, and an ended belt 4 with its upper side frictionally contacted with the lower area of the belt 3 and wound across rollers 2R arranged on both sides of the frame 1 and with both ends located below being fixed below fixed sections 4. That is, an object located on one side of the shift direction of the support bed is scooped to be mounted on the support bed by means of the rotation of the belt 3 by a drive roller 6, etc. and the horizontal shift of the support bed S by a drive roller 7, etc., and is lowered at the position of the other side for transportation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for transferring an object using a support base surrounded by an endless belt, particularly when a patient in a hospital or the like is transferred from one room to another through a window. The present invention relates to a transfer device that can be suitably used for.

This type of transfer device is used as a device for transporting patients into and out of a sterilized operating room or the like from an external room. In other words, if a patient is transported into or out of a sterilized operating room using a transport vehicle or the like through a door, bacteria may enter the operating room and sterilization must be performed again.
As a method for quickly transporting patients in and out, a method has been adopted in which a shaker device is installed in the window of the operating room and patients are transported in and out through the window.

This transfer device has a support table for scooping up, mounting, and transferring a patient lying on an operating table, etc., but this support table has a flat frame that is supported so as to be horizontally movable in a horizontal state. The basic component is an endless belt that is arranged around the circumferential surface of the frame in the patient transport direction.The patient is transported by rotation of the endless belt and movement of the frame.

An example of such a device is disclosed in Japanese Patent Application Laid-Open No. 53-1648'7.
In particular, it is shown in "Transportation device for moving bedded patients in hospitals". This "carrying device" is based on two upper and lower frames and endless belts surrounding both frames, and the lower endless belt is actively rotated by a drive mechanism. This [carrying device] is a system in which the lower endless belt of both the upper and lower endless belts is actively rotated, and the upper endless belt is driven by frictional force, so the upper endless belt on which the patient is carried is rotated. There is a problem with the reliability of rotation. Furthermore, there is also a problem in the speed of patient transfer, and there is also the drawback that it is difficult to rotate the upper endless belt smoothly.

This type of patient transfer device does not adopt the above-mentioned system that uses two upper and lower endless belts, but a simple structure that uses only one endless belt (Special Publication No. 57-3).
No. 373 "Object Transfer Device") has also been proposed, but this "transfer device" uses a system in which an endless belt is friction-bonded to a bed etc. and rotated by the movement of a frame. I have a sexual problem.

The present invention is an object transfer device that solves the drawbacks of the conventional devices as described above, and it is an object of the present invention to provide an ideal transfer device that can drive the rotation of an endless belt at a fixed position. It is.

The feature of the object transfer device provided by the present invention is that the support base is mainly composed of a frame in which the upper part is surrounded by an endless band-like body, and the lower part is surrounded by a right-end band-like body with both ends fixed. An endless strip of jiff is installed on the fixed part.
The structure is such that it is rotated by a drive mechanism.

An embodiment of the patient transfer device will be described below.

Fig. 1 is a diagram showing the overall configuration of the transfer device of the present invention implemented in the window M of a partition Bow. B shows the extended state.

Although the figure shows a state in which the window M is open, specifically, an opening/closing window that descends to the top surface of the support base S is provided, and FIG. 1 shows this opening/closing window (not shown). This is a diagram in which ``Z'' is omitted. In addition, in the figure, patient K is in operating room A.
This state is shown before the patient X is transferred to, for example, a transport vehicle H in an external room B.

The details of the structure of the support stand S will be described later, but its main components are a frame 1 on which the patient K is mounted and supported, a frame body 2 at both ends, and an endless belt 3 that surrounds these in the direction of transport of the patient. , an end belt 4. This support stand S
is supported through the window M in a horizontal state, and is capable of reciprocating in the horizontal direction.

The support stand S is configured so that an endless belt 3, which is especially arranged around the frame 1, can be rotated at a rate of mW in order to transport the patient X, and is also configured to be able to move a certain amount in the vertical direction. ing.

Details of these configurations will be explained with reference to FIGS. 2 to 7.

FIG. 2 shows that the support stand S is connected to the hydraulic cylinder 15 at the window M.
This shows the state in which it is installed in a horizontal state with respect to a movable frame 5 that is installed to be able to move up and down. The patient is transferred from the right side to the left side or from the left side to the right side with this device.
The person is placed on the support stand S in a recumbent state. For this purpose, the width of this support table (the length in the direction perpendicular to the plane of the paper in FIG. )are doing. This state is clear from FIG. 3 viewed from 1-17 in FIG. 2, and the support stand S is held at both sides by the horizontally long U-shaped pedestal 5.

The height and thickness of the entire support stand S are made as small as possible to reduce weight. That is, as will be explained in detail later, the endless belt 3 and the end belt 4 are rotated by a rotary drive source, but this drive source is installed on the side of the pedestal 5, and the thickness of the support S is made small. . On the other hand, it is required to be strong enough to withstand carrying a patient, so this aspect must be taken into consideration when designing the structure.

The support stand S has a flat shape as shown in FIGS. 1 to 3, and includes a frame 1 that supports the patient K directly placed above, a frame 2 attached to both ends of the frame 1, and a frame 2 attached to both ends of the frame 1. These frames l and rollers IR, 2 attached to the frame body 2
The main constituent elements are an endless belt 3 and an end belt 4 surrounding R.

The details of the structure of the frame 1 are as shown in FIGS. 4 to 6, and consist of an assembly of two upper and lower plate-like frames IF and side plates IS on both sides in the width direction. As shown in an enlarged view, a frame body 2 is integrally attached, and rollers IB and 2R are rotatably held on this frame body 2 by support shafts 19 and 20. Although the belts 3 and 4 are in surface contact with each other as shown in the drawing, the distance between the rollers IR and 2R is set so that frictional transmission does not occur.

Endless belt 3 consists of frame 1 and rollers I at both ends.
At the position of the pedestal 5, it is wound around a drive roller 6 installed on the pedestal 5 (fixed part). This state is shown in detail in FIG. 6, where the endless belt 3 is wound around the drive roller 6 via rollers 8 and 8/, and the winding angle between the endless belt 3 and the drive p-roller 6 is increased. This ensures the rotation of the belt 3.

The rollers 8 and 81 are rotatably held by the pedestal 5, and the drive roller 6 is rotatably supported by the pedestal 5 via its spindle lO. As shown in FIG. 3, the right side of the support shaft 10 of the drive roller 6 extends through the right side of the frame 5 and is connected to the output shaft of an electric motor 12 with a reduction gear. Therefore, the rotation of the electric motor 12 drives the drive roller 6 to rotate, and the endless belt 3 rotates around the frame 1.

On the other hand, the lower belt 4 with ends 4 is wound between the rollers 2R on both sides, and the middle portion thereof is wound around a drive roller 7 fixedly installed on a frame 5 (fixed part) like the endless belt 3. Furthermore, after winding the roller 2R, both ends are connected to a fixing part 4y installed on the pedestal 5 by extending the lower part of the support S to the center.

Like the rollers 8, 8/, the rollers 9, 9/ are used to increase the winding angle of the belt 4 around the drive roller 7, thereby ensuring reliable driving of the belt 4. 11 is this drive four-
As shown in FIG. 3, the right side of the support shaft supports the rack 7 on the frame 5, and is connected to the electric motor 13 with a speed reducer.

The horizontal movement of the support stand S is carried out by the rotation of a drive roller as will be described later, and the frame 1 is supported on the pedestal 5 to ensure smooth horizontal movement. This supporting method is shown in FIG. 4 in the illustrated example. That is, although the frame l has grooves IM formed in the horizontal direction on the outer surface of its side frame body ISO,
A support roller 18 supported by the pedestal 5 is inserted into the groove IM, and the support pedestal S is supported by the pedestal 5 (fixed portion). This support roller 18 is attached to the support shaft 17, and is smoothly inserted into the groove IM. 14 is spindle 1
7 fixing tool. The material size of each member of this support mechanism is set so that it has sufficient mechanical strength to support the weight of the support stand S and the patient.

In the illustrated example, rollers IR are provided at both ends of the support stand S.

2R are arranged above and below, but in this arrangement, unless the diameters of the rollers 1R and 2R are set small, it is disadvantageous for the support table to scoop up the object (patient). For this purpose, it is desirable to reduce the thickness of the end portion of the support base S by, for example, positioning the lower roller 2 diagonally downward.

The support stand s, especially the electric motor for rotating the endless belt 3 [1
2, the driving electric motor 13 for horizontally moving the support stand S, and the hydraulic cylinder 15 for moving the pedestal 5 up and down are performed sequentially during transfer to the patient, but these operations are shown in Fig. 1. Operation box 2 as shown in
Appropriateness is controlled by operating the operation button P and switch T on the top of the screen.

Signals from the operation box 21 are input to the controller 22, which outputs signals necessary to operate the electric llAl2.13 and the hydraulic cylinder 15, as will be described later. 23 is a power supply, and 25 and 26 are switching circuits, which control the operation of the electric motors 12 and 13 in response to signals from the controller 22. The electric motors 12 and 13 are reversible electric motors, and the controller 22 sends a signal for either forward rotation or reverse rotation to the switching circuit 25.26 based on the signal from the operation box 21. The direction of rotation of each electric motor 12, 13 is also controlled based on the signal.

The controller 22 sends a signal for controlling the operation of the hydraulic cylinder 15 to the electro-hydraulic servo valve 27, and the hydraulic pressure from the hydraulic source 24 is shown schematically in each hydraulic cylinder 15 based on the signal, but in detail is equipped with various equipment.

Although the on-off control method is illustrated in which the operation button P is held down and the button P is stopped from being moved or transferred to a patient, the on/off control method is not limited to the illustrated example. It is also possible to input this value when setting the car tightening or when the patient transport distance is known, and to control the movement of the endless belt support base according to this input value.

Digital values may be input, and furthermore, it is also possible to use a microcomputer to control the amount of movement and the amount of rotation of the endless belt to match the set values. It is also conceivable to add various functions and devices to such a specific device.

In the above configuration, transport of patient X will be explained according to FIG. FIGS. 8(1) to 8(7) show the order of transfer and also show the order of operation of this device.

In addition, in Figure 8, the relationship between the support stand S and the patient! Shown schematically. In particular, support stand S # tips bl Endless belt 3 Endless belt 4 Directly related to patient transfer
The moving rollers 6 and 4 of these belts 3.4 are shown as representatives. In addition, in FIG. 8, the endless belt 3 and the belt with ends 4 are marked with black circles or triangular arrows at regular intervals on the line of the belt. The triangular arrow indicates that it is not displaced relative to the partition wall W, that is, it is in a stationary state, and the triangular arrow is displaced 1 relative to the partition wall W, that is, it is moving in the direction of the arrow ( 0 to do
:1 In the illustrated example, an operation will be described in which a patient K on an operating table is transferred through a partition wall W to a transport vehicle H in an outer room.

Further, it is assumed that the vertical movement and horizontal movement of the drive p-ra 6 and the support stand S are performed by the operations described above.

First, it is necessary to advance the support table S toward the operating table. When the support table S is located on the outside room side as shown in Figure (1), the support table moving mechanism is operated, that is, the drive roller At the same time as the roller 7 is rotated, the drive roller 6 is also rotated. The reason why this drive roller 6 is driven is to prevent damage caused by contact (damage due to sliding contact) when the upper surface of the endless belt 3 comes into contact with a member, wall, etc. in the outer chamber when the support base S is moved. It is.

By rotating the drive roller 7, the upper left side of the belt 4 with an end is pulled to the right, so that the entire support base S moves to the right.

When the support table S moves and reaches the position of the operating table, the height of the support table S is such that the lower side of the belt 4 with an end matches the position of the upper surface of the operating table (the back surface of the patient X).

Figure (2) shows this state, and the illustrated example shows a state in which it is displaced downward.

As this condition progresses further, the upper surface of the endless belt 3 and the lower surface of the belt with ends 4
The support table S moves forward while remaining stationary with respect to the back surface of the patient As a result, the support stand S scoops up the patient K, resulting in the state shown in Figure (3). Figure (3) shows both drive rollers 6.
This shows a state in which the 70 rotation drive has been stopped and the patient X has been scooped up.

Once the patient has been scooped up from the operating table, the patient K is then transferred to the outside room. In this case, only the drive roller 7 is driven to rotate as shown in FIG. 4. Then, as shown in the drawing, only the upper surfaces of both belts 3 and 4 are pulled, so the entire support stand S is moved to the left, and the patient K is quickly moved to the left by the rotation of the endless belt 30. will be transferred. That is, the amount transferred to the patient is the amount obtained by adding the amount of rotation of the endless belt 3 to the amount of movement of the support table S, and the moving speed increases. This is because the driving roller 6 is not rotated and the upper surface of the endless belt 3 moves to the left as shown in the drawing due to the left side of the frame 1 accompanying the movement of the support base S.

Therefore, by rotating the drive roller rough, the patient can be quickly
can be transferred to the outer room side, and the state shown in Figure (5) can be obtained. Figure (5
) also shows a state in which both drive rollers 6.7 are stopped. Patient X is located above transport vehicle H.

Next, an operation is performed to lower the patient X onto the transport vehicle H, and for this purpose both drive rotors 7 are driven to rotate in the same direction. Then, the same situation as in Figures 11 and 21 is reproduced, and the upper surfaces of both belts 3 and the lower surface of the belt with ends 4 become stationary, and the patient X remains at the same position T as in Figure (5), and as shown in Figure (6). As shown in the figure, the support stand S moves to the right. When this state progresses, the patient X is lowered onto the transport vehicle H, as shown in FIG. 7, and the transfer force C to the patient is completed.

The above also applies when patient X is transferred from the outside room to the operating room, contrary to the above! A similar operating procedure takes place, but the drive roller 6.7 has to be driven in rotation in the opposite direction.

The present invention is not limited to the illustrated example, and various modified embodiments are possible. First, the seven frames, which are the main components of the support base, are formed by joining plate-shaped bodies in the illustrated example, but other than that, for example, a large number of rollers are arranged between both side plates, and the entire structure is You can also Hfd an endless belt around it.

As mentioned above, regarding the rollers that wind the belt with ends,
In order to make the end of the support base thinner, it is desirable to position it diagonally below the position of the endless belt roller.
For example, it is desirable to position it diagonally downward and outward in the transport direction, and to make it small in diameter.

Although an example has been shown in which both drive rollers are installed on a pedestal, the pedestal is not necessarily required, so in that case, the side drive reeler and its drive source are installed in a fixed part such as a window. As the drive source, not only an electric type but also a hydraulic or pneumatic drive mechanism can be used.

Furthermore, although the illustrated embodiment has a structure in which the end belt is rotated by a drive roller to move the support base, the drive roller for rotating the end belt may be omitted.

Another method is to attach a frame integral with the frame below the frame, form racks on the sides of this frame (on both sides in Figure 3), and rotate the binions that mesh with the racks using a drive motor or the like. Possible methods include driving.

In addition, in the illustrated example, the support base is supported by the pedestal and the support base is moved up and down by moving the pedestal up and down, but the support base does not necessarily have to be moved up and down, so in that case The stand is directly supported by a support roller held by a fixed part. Even in the case of the embodiment in which vertical displacement is performed, it is not limited to a hydraulic mechanism, but a mechanism using a cam or a mechanism using a screw feed may also be adopted. A patient weight indicator may also be provided.

The device of the invention can transport not only patients but also other heavy objects. In this case, it is desirable to use caterpillars instead of belts. Therefore, the invention is not limited to belts only.

As described above, the object transfer device of the present invention can transport objects more reliably than conventional devices. In particular, since the endless belt itself, which is arranged around the seven frames on which the object is mounted, is actively driven and rotated, the mounted object can be reliably transferred.

Furthermore, the entire support base does not slide into contact with other fixed parts, and especially when the surrounding endless band-shaped body comes into contact with the fixed part, it eliminates the state of relative displacement and forms a stationary state. Objects can be transferred without causing damage to the endless strip.

It can be effectively used as a patient transport device in hospitals, and its effects are remarkable. In particular, in the present invention, since the drive roller of one belt can be installed in a fixed part, the printing is stable and the transportation of patients, etc. is made smooth. Furthermore, even when the endless strip is in contact with the operating table or bed, only the endless strip can be rotated, making the transfer operation smooth and easy.

[Brief explanation of the drawing]

Fig. 1 is a diagram schematically showing the entire device when an embodiment of the present invention is installed in a hospital window, Fig. 2 is a diagram showing a membrane force type, and Fig. 5 is a diagram showing a part of 7 frames. Figure 6 is a diagram schematically showing the upper and lower belt drive mechanism, Figure 7 is a diagram showing the schematic configuration of the operation control system of the support base, and Figures 8 (1) to (7) are diagrams showing the configuration. FIG. 3 is a diagram for explaining the order of transferring objects and the operation of the device. 11・Frame, 11P...Frame body, I
s-, Frame side plate, 1M... Groove, 2... Frame, IR, 2R...
・4-ra, 3. Endless belt, 4@・1 end belt, 5. e. Frame, 6.7... Drive roller, 8, 8', 9. 9/... p-ra, 10.
11... Support shaft, 12.13... Electric motor with reduction gear, 15... Hydraulic cylinder, 1B-, support p-ra, 21-... Operation box, 22... Controller, 23. ...Power source, 24...Hydraulic power source, 25.26...Switching circuit, 27...Q Electro-hydraulic servo valve 1 D...Operating table, H...Transportation vehicle, K...Patient, M ...Window section, W...Partition wall. Figure 2. Nun 50

Claims (2)

[Claims] (1) A frame on which an object to be transferred is mounted and surrounded by an endless band-like body in the transfer direction and supported so as to be movable in the horizontal direction with respect to a fixed part, and a lower side area of the endless band-like body. a support base consisting of an end-shaped belt-like body whose upper side is friction-bonded to the frame and which is wound around rollers disposed on both sides of the frame and whose ends located on the lower side are fixed to a fixed part; and a fixed part. an endless belt drive mechanism for rotating the endless belt, and an endless belt drive mechanism for rotating the endless belt; a support table moving drive mechanism for reciprocating the table in the rotational direction of the endless strip body, the rotation of the endless band body by the endless strip drive mechanism and the support table by the support table movement drive mechanism; An object transfer device characterized in that, by horizontal movement of the support table, an object located on one side in the movement direction of the support table is scooped up onto the support table, is placed on the support table, and is lowered to a position on the other side and transferred. (2) A patent characterized in that the support platform moving drive mechanism is constituted by a roller that is rotatably installed on a fixed part and around which the middle of the end band-shaped body is wound, and a drive mechanism that rotationally drives this roller. An object transfer device according to claim 1.