JPH10146364A - Bed carrying vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive bed carrying vehicle which allows one nurse to move a bed safely and surely with a small amount of force. SOLUTION: This bed carrying vehicle 12 is disposed to go under the end of a bed, with bed support 17 lifting a horizontal post 20. The bed carrying vehicle 12 is operated by a remote controller 19 held by a nurse and signals are transmitted from a cord 18 connecting tie remote controller to the bed carrying truck 12, so that the bed is moved in such a way as to be pulled. The nurse 11 is at the opposite end to the end where the bed carrying vehicle 12 is placed, controlling the remote controller 19 while supporting the bed to cause the bed carrying vehicle 12 to travel longitudinally and horizontally. The bed carrying vehicle 12 is designed to be capable of ascending a 3 to 6% slope provided in a hospital.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bed carrier for easily moving a bed while a patient is placed in a hospital or the like.

[0002]

2. Description of the Related Art In hospitals, there are many occasions in which a bed is moved with a patient on it for movement between patients' rooms, examination, and treatment. However, since the bed on which the patient is placed is equipped with a treatment cylinder and the like,
The total weight becomes about 300 kg. In this way, the bed on which the patient is placed is very heavy, and the feet of the bed are provided with four-wheel casters, making it difficult to determine the direction of travel. Therefore, two nurses move the bed.

[0003] For example, it is common that one nurse pushes the bed with one end of the bed and another person pulls the other end of the bed to determine the traveling direction.

[0004]

However, due to the shortage of nurses and the like in recent years, the amount of medical care to be performed by a single nurse has increased, and the nurses have to spend much time and effort on moving the bed. There is growing demand not to want to.
To meet this demand, a self-propelled bed has been proposed. However, this bed has a complicated structure and is expensive, so that the burden on the hospital is great.

[0005] Accordingly, an object of the present invention is to provide an inexpensive bed transport vehicle that allows a nurse to move a bed safely, reliably and with a small effort.

[0006]

The bed carrier of the present invention is supposed to be used for moving a bed in a hospital, and its traveling direction is controlled in accordance with a command given by remote control, and the bed is transported. Is lifted, and the bed is moved while the caster at the other end of the bed is on the floor.

[0007] The nurse only needs to support the end of the bed with the caster on the floor by hand, and the bed is moved by the bed carrier so that the bed is pulled. No need to use force.
Therefore, the burden on the nurse can be reduced. Also, since the nurse can move the bed alone, the number of nurses engaged in non-nursing work, such as moving the bed, can be reduced. You can increase the percentage of time you work in your primary business.

[0008]

FIG. 1 is a diagram showing the basic configuration of the present invention. FIG. 7A is a diagram showing a state of bed movement when the bed carrier of the present invention is used.

The patient 13 is moved while lying on the bed base 14. At this time, for example, the nurse 11
Is arranged so that the bed carrier 12 of the present invention is sunk under one of the beds, for example, at the end of a column 16, and oneself has an end of the bed opposite to the end where the bed carrier 12 is arranged, for example, a column 15. Come to

Before the nurse 11 comes to the column 15,
For example, a hydraulic cylinder is moved by using a pump (not shown) attached to the bed transport vehicle 12, and the bed transport vehicle 1
The portion of the second bed support 17 slightly lifts the column 16 side of the bed. A remote control 19 is attached to the bed transport vehicle 12 via a cord 18, and the nurse 11 operates the remote control to operate the traveling direction of the bed transport vehicle 12.

The bed carrier 12 is indicated by an arrow A in FIG.
When moving in the direction of, the bed is moved by pulling. At this time, the nurse 11 only needs to lightly support the area around the column 15 by hand while operating the remote controller 19. Also, the head of the patient 13 is
The nurse 11 can be turned to the patient 13
You can move the bed while watching the complexion of the person.

By operating the remote controller 19, the bed transporting vehicle 12 can change its traveling direction back and forth and left and right.
In the case of a hospital bed, a bed is usually provided with a rotatable caster on the foot of the bed.
You can change the direction of travel forward, backward, left and right as you move.

Further, since the bed transport vehicle 12 can be used regardless of the type of bed, any type of hospital bed which exists in a large number can be applied, and the bed carrier 12 is rich in versatility.

FIG. 2B is an enlarged view of the bed support. There are various types of hospital beds,
The basic structure is such that a lateral column 20 is attached to a pedestal 14 on which a patient sleeps, and the lateral column 20 is attached to columns 16 (only one is shown) on both sides. The bed carrier according to the present invention has a bed support portion 17.
Is engaged with the lateral support 20 and lifted.

Therefore, the caster of the bed on which the bed transporter is located is floating inside, and the caster of the bed on the side without the bed transporter is in a state of supporting the bed on the floor. The height at which the bed is lifted by the bed support is not particularly limited, but practically, about 10 mm is sufficient. If the total weight of the bed is about 300 kg,
Since the weight lifted by the bed supporter is about 150 kg, it is necessary to provide the bed carrier with a hydraulic jack or a configuration corresponding to a hydraulic jack that can only lift such a weight.

FIG. 2 is a view showing another embodiment of the bed support. The bed support portion 17 'in the figure has a slanted side surface 22, and the width of the bottom surface 21 is configured to be slightly smaller than the width of the lateral support 20'. Also, the cross section of the lateral support column 20 'of the bed is configured to be circular. With such a configuration, when the lateral support 20 ′ is placed on the bed support 17 ′, the side surface of the horizontal support 20 ′ comes into contact with the side 22 of the bed support 17 ′. In the case of FIG. 1B, since the width of the bottom surface of the bed support 17 is larger than the width of the horizontal support 20, the bed support 17 and the horizontal support 20 are connected when the bed carrier tries to turn. There is play between However, if the configuration is as shown in FIG. 2, the side surface of the lateral support 20 'and the side surface 22 of the bed support portion 17' abut without any gap, so that there is no play even when the bed carrier turns. .

Therefore, when the bed is carried by the bed carrier, the bed can be moved without giving uncomfortable vibration to the patient lying on the bed. FIG. 3 is a top view of one embodiment of the bed carrier of the present invention.

A right wheel 31 and a left wheel 32 serving as driving wheels are provided on both sides of the chassis 30. Right wheel 31
Is connected to a drive motor 35 by a chain belt 38 and is driven by the drive motor 35. Left wheel 32
Are connected to a drive motor 36 by a chain belt 37 and are driven by the drive motor 36. That is, in the configuration of FIG.

Further, a front wheel 33 is provided at a lower front portion of the chassis 30, and is a rotatable caster.
A safety bumper 34 is provided in front of the chassis 30 so that the bed carrier may hit a wall or the like. Although not shown, a switch operated by a piezoelectric sensor is incorporated in the safety bumper 34, and the power of the drive motor is automatically turned off when the safety bumper 34 is pressed by hitting a wall or the like. It is also possible to configure.

The control of the drive motors 35 and 36 and the above switches is performed by a control circuit provided in a control box 42 provided on the right side of the chassis 30. A control circuit in the control box 42 receives a command from a remote controller (not shown) and controls the drive motors 35 and 36 according to the command. Power is supplied to the control box 42 and the drive motors 35 and 36 from a battery 41 provided on the left side of the chassis 30.

The battery 41 is charged from a power source equivalent to a home power source provided in the hospital when the bed carrier is not used. When the bed carrier of the present invention is not used, it can be moved out of the way and charged there. In contrast,
In the case of a self-propelled bed, it is necessary to perform charging using the power supply of the hospital room, and thus there is a disadvantage that the power supply of the hospital room is occupied by a small amount. However, the bed carrier of the present invention does not occupy the power supply of the hospital room, and the outlet can be opened for the treatment machine.

A hydraulic jack 40 is provided near the center of the chassis 30, and a bed support 17 is provided at the tip. This hydraulic jack 40 is
Is extended by a pump operation from a manual pump 39 provided in front of the bed support section 17.
Push up to lift one end of the bed. The nurse
When using a bed carrier, the hydraulic jack 40 is extended by the manual pump 39 so that the bed support 17 lifts the end of the bed. Further, although not shown in the figure, a flat bearing is provided at a lower portion of the hydraulic jack 40, and when the bed carrier is turned to change the traveling direction, a twist is caused between the bed carrier and the lateral support. Are not generated.

The traveling direction of the bed carrier is controlled as follows. That is, at the time of forward movement, the right wheel 31 and the left wheel 3
Rotate 2 forward at the same speed. Right wheel 3 when reverse
1 and the left wheel 32 are rotated backward at the same speed. When turning right, the right wheel 31 is rotated forward at a low speed, and the left wheel 32 is rotated forward at a high speed. When turning to the right at an acute angle, the right wheel 31 is stopped and the left wheel 32 is rotated forward at a high speed. As a result, the bed carrier turns right in place. Turning to the left is basically the same as turning to the right, except that the right wheel 31 and the left wheel 32 are reversed in the above description. When turning to the right rear, the right wheel 31 is rotated backward at a low speed or stopped, and the left wheel 32 is rotated backward at a high speed.
When turning to the left rear, the left wheel 32 is rotated backward at a low speed or stopped, and the right wheel 31 is rotated backward at a high speed. Such control is performed by a control circuit housed in the control box 42 in accordance with a command from a remote controller (not shown).

When the patient is not riding, the interlining turning by reversing the left and right wheels is also possible. Also, with the help of a nurse, the nurse pushes the support 15 to the left and right,
A small turn around the center of the bed is also possible.

The control of the drive motors 35 and 36 by the control circuit housed in the control box 42 includes, for example, changing the current sent to the drive motors 35 and 36 by a chopper circuit to change the speed. Conceivable.

Further, when the hydraulic jack 40 rotates on the horizontal bearing, a motor for actively rotating the hydraulic jack 40 is provided, and when the bed carrier is inclined with respect to the bed, the motor is activated according to the inclination. It is also possible to change the angle of the bed support 17 so as to prevent the bed from being twisted.

FIG. 4 is a side view of the bed carrier shown in FIG. As described in FIG. 3, the battery 41, the safety bumper 34, the manual pump 39, the hydraulic jack 40, and the drive motors 35 and 36 are provided on the chassis 30. The front wheel 33 is provided in such a manner that a hole is made in the chassis 30 so that the wheel projects downward.

FIG. 2 shows a state in which a pump handle 43 is provided on the manual pump 39 and a stopper handle 45 is provided on the hydraulic jack 40. The pump handle 43 is used by the nurse to operate the manual pump 39 when the bed support 17 is lifted up to support the bed, and has the same role as the handle of a normal pump. It is what you do.

The stopper handle 45 provided on the hydraulic jack 40 engages with a meshing tooth (not shown) provided on the piston of the hydraulic jack 40 when the bed support portion 17 is in a raised state, and the weight of the bed is reduced. The bed support 17 is prevented from coming down.
Therefore, when removing the bed carrier from the bed,
By moving the stopper handle 45, the hydraulic jack 4
The projection which is engaged with the meshing teeth provided on the piston No. 0 is removed, and the bed support 17 is lowered.
When the bed handle 17 is released from engagement with the stopper handle 45, the bed support 17 is naturally lowered by its own weight, so that it is not particularly necessary to push down the bed support 17 by hand.

Further, in FIG.
A flat bearing 44 is provided at the lower part of FIG. This is to prevent the bed support 17 from being twisted in relation to the lateral support of the bed when the chassis 30 tilts relative to the bed as the bed carrier turns left and right, as described above. It is to be. When the bed carrier turns left and right and tilts with respect to the bed, the hydraulic jack 4
Since the 0 is freely rotated, the bed support portion 17 can continue to support the bed without being twisted between the bed carrier and the bed.

In the hospital, a 3-6% slope is provided at the stairs for moving a wheelchair or the like. Therefore, the bed carrier needs to be able to go up and down such a slope. Therefore, the ground point of the front wheel 33 and the chassis 3
The angle formed between the front end of the zero and the ground point of the rear wheel (the left wheel and the right wheel) and the rear end of the chassis 30 is formed to be larger than the slope angle of 3 to 6%.

FIG. 5 is a diagram showing the structure of the hydraulic jack. FIG. 1A is a front view of the hydraulic jack, and shows only a configuration around a lowermost hydraulic cylinder provided in a lift pipe.

The hydraulic jack shown in FIG. 3A has a two-stage structure, and only the lowermost hydraulic cylinder 53 is shown, but a hydraulic cylinder for the second stage is provided inside. Are also stored. A cylinder rod 51 that rises by hydraulic pressure is provided at the tip of the hydraulic cylinder 53, and a connection member 52 that connects the lift pipe 50 that houses the hydraulic cylinder 53 and the cylinder rod 51 is attached to the cylinder rod 51.

The lower part of the hydraulic cylinder 53 is mounted on a flat bearing 44, which is mounted on the chassis 30. Thereby, the entire hydraulic jack can freely rotate.

The lift pipe 50 is provided with a stopper handle 45 to prevent the second-stage lift pipe 56 from descending naturally. When lowering the second-stage lift pipe 56, FIG.
Is operated to release the engagement between the stopper 54 and the engagement teeth 58 shown in FIG. When the stopper 54 is disengaged from the state where the second-stage lift pipe 56 is lifted up by a hydraulic cylinder (not shown), the second-stage lift pipe 56
Is naturally lowered by the weight of the bed support portion 17.

FIG. 3B is a side sectional view of the hydraulic jack. A roller 55 is provided between the lift pipe 50 and the jack outer wall 57, and the lift pipe 50 is configured to move straight upward with respect to the jack outer wall 57. Jack outer wall 57 and hydraulic cylinder 53
Means that the chassis 30
Can rotate freely.

The lift pipe 50 has a stopper handle 4
A stopper 54 interlocking with the fifth gear 5 is provided so as to mesh with a meshing tooth 58 provided on the second-stage lift pipe 56. When the second-stage lift pipe 56 is moved upward, the stopper 54 is formed so as to be inclined with respect to the meshing teeth 58 so as to be freely movable like a ratchet mechanism. The second stage lift pipe 5
6 is supported by the weight of the bed support portion 17 so as not to be lowered.

When lowering the end of the bed from the state where the bed supporter 17 has lifted the end of the bed, first,
The stopper 54 is removed by the stopper handle 45, the second-stage lift pipe 56 is lowered, and the bed support portion 17 is stored so as to reach the bottom.

FIG. 6 is a diagram showing an example of a remote controller for operating the bed carrier. The key switch 60 provided on the side of the remote control box 66 is a power switch of the bed carrier. Normal traveling control of the bed carrier is performed by a potentiometer switch 61 provided on the upper surface of the remote control box 66. In the example shown in the figure, a switch for designating the forward and backward movement and stop of the bed carrier and a switch for designating the traveling direction of the bed carrier are provided.
An emergency stop switch 62 is provided in addition to the operation switches for normal traveling. Emergency stop switch 6
For example, when the bed carrier is about to climb on a curb or the like while the bed carrier is carrying the bed, the bed 2 is pressed to make an emergency stop to reduce the shock of collision.

The remote control box 66 is provided with a hook 64, which can be hooked on the edge of a bed or the like. A wire 63 for transmitting an electric signal to the bed carrier extends from the remote control box 66, and a wire hook 65 is provided so as to be hooked to any edge of the bed.
A plurality of wire hooks 65 are provided between the remote control box 66 and the bed carrier, and are hooked to the edge of the bed so that the wires 63 do not interfere with the movement of the bed.

In the above embodiment, the bed transport vehicle is a two-wheel drive, but a single-wheel drive configuration is also possible. FIG. 7 is a plan view showing another embodiment of the bed carrier of the present invention.

In the figure, the components denoted by the same reference numerals as those in FIG. 3 are the same as the components in FIG.
In the description of the figure, the description of the same components as those in FIG. 3 is omitted.

The other structure is almost the same as that of the embodiment shown in FIG. 3, except that only one drive motor 35 is provided, and this drive motor 35 drives only the right wheel 31. And a single-wheel drive configuration.
A chain belt 37 is attached to a hydraulic jack 72 mounted on a flat bearing (not shown), and is configured to be actively rotated by a motor 71 provided separately.

In such a configuration, when the end of the bed is lifted, a pseudo three-wheeled vehicle is formed by the two rear wheels of the bed and the right wheel 31 which is the driving wheel of the bed carrier. The bed can be transported successfully. The hydraulic jack 72 is connected to the right wheel 31 as a drive wheel.
As close as possible. When changing the traveling direction of the bed carrier, the hydraulic jack 72 is rotated in a desired direction by the motor 71 with the bed supporter 17 lifting the bed. In this case,
Since the bed carrier is lighter than the bed, the bed carrier turns without the bed turning. At this time, the hydraulic jack 72 is provided near the right wheel 31 so that the bed carrier can be turned smoothly.
In this way, when the bed carrier turns, it turns around the right wheel 31.

The reason why the hydraulic jack 72 is not placed near the left wheel 70 is that the left wheel 70 can rotate freely, but the right wheel 31 cannot be rotated freely because it is connected to the drive motor 35, and the bed transport vehicle cannot be rotated. This is because when turning, it is not possible to turn well. However, if the right wheel 72 is driven in accordance with the turning of the bed carrier accompanying the rotation of the hydraulic jack 72, the hydraulic jack 72 can be provided near the left wheel 70.

Although the right wheel 31 is used as a driving wheel in the figure, the left wheel 70 may be used as a driving wheel. In this case, preferably the hydraulic jack 72
Is provided near the left wheel 70.

FIG. 8 is a view showing still another embodiment of the bed carrier. In this figure, components denoted by the same reference numerals as those in FIG. 3 or FIG. 7 are the same as those in FIG. 3 or FIG. In the description of the drawing, the description of the same components as those in FIG. 3 or FIG. 7 will be omitted.

The present embodiment is different from the above-described bed transport vehicle in that a drive motor 35 ′ with a speed reducer is used as a drive motor, and the right wheel 3
1 'and the left wheel 32' are driven, and the front wheel is a freewheel type front wheel 33 '. Note that the bed support 17 'adopts the configuration shown in FIG.

In other respects, the configuration is the same as that shown in FIG. 7. A chain belt 37 is attached to a hydraulic jack 72 mounted on a flat bearing (not shown), and is actively driven by a separately provided motor 71. It is configured to rotate. Therefore, when the hydraulic jack 72 to which the bed support 17 'is attached rotates, the bed carrier lighter than the bed turns with respect to the bed.

The differential mechanism 73 includes the drive motor 3 with a speed reducer.
The driving force from 5 'is transmitted to the right wheel 31' and the left wheel 32 'to move the bed carrier, and a difference is generated between the number of rotations of the right wheel 31' and the number of rotations of the left wheel 32 ', thereby forming the bed. When the support portion 17 ′ rotates, the bed carrier is easily turned. At this time, since the bed carrier tries to turn around the bed support 17 ′, the hydraulic jack 72 and the bed support 17 ′ are provided above the differential mechanism 73. In this way, the force for turning the bed carrier generated by the rotation of the bed support 17 ′ is efficiently transmitted through the differential mechanism 73 to the rotational speed difference between the right wheel 31 ′ and the left wheel 32 ′. Therefore, turning of the bed carrier can be made smooth.

Accordingly, the front wheels are omnidirectional rotating freewheel type front wheels 33 '. By making the front wheel a freewheel type, the front wheel can follow the movement of the bed carrier no matter how it turns, so that the bed carrier has the effect of smoother turning.

The drive motor 35 'is used as the drive motor in order to increase or decrease the moving speed of the bed carrier. In particular, when the bed carrier intends to turn in a narrow passage, the drive motor 35 '
By using the speed reducer described above and slowing down the moving speed of the bed carrier and turning, the bed can be safely transported along the passage.

According to the configuration of the bed transport vehicle shown in FIG. 5, the turning property is extremely improved. For example, when the bed transport vehicle does not have the motor 71 and the bed transport vehicle is turned, the bed transport vehicle must be manually turned. Even in the case of the configuration in which the bed is transported, the other end of the bed transported by the bed transport vehicle can be easily turned by manually operating the other end.

FIG. 9 shows the configuration near the casters of the bed on the opposite side of the bed carrier. Normally, when the bed carrier of the present invention is used, the other end of the bed does not require any particular new configuration, but the figure particularly shows a configuration for improving the running stability of the bed. Things.

FIG. 7A shows a structure for preventing the bed casters from rotating freely. In FIG. 9A, a wire stopper 82 is provided at the end of the bed, and one end of the wire 81 is attached to the wire stopper 82. The other end of the wire 81 is adapted to be hooked on a caster 80 of the bed to fix the caster 80 to freely rotate.
The wire stopper 82 may be of any type, and is preferably one that can be easily attached to and removed from the end of the bed by an existing method such as bolts and nuts. Alternatively, a configuration in which one end of the wire is hooked on the edge of the bed without providing such a configuration may be adopted. In this way, by fixing the casters 80 of the bed, it becomes possible to run more stably when the bed turns on a curved road.

FIG. 6B shows a configuration in which the direction of the caster is actively changed. FIG. 9B is the same as the configuration of FIG. 9A in that one end of a wire 81 is hooked on a caster 80 of the bed and the other end is attached to a wire stopper 83, The difference is that the tool 83 is configured to move.

The wire stopper 83 is L-shaped, and has a wire 81 at one end and a control wire 84 at the other end.
Is attached. The control wire 84 includes an inner cable and an outer cable,
The outer cable is fixed to the bed by a stopper 85. The inner cable is attached to one end of an L-shaped wire stopper 83, and the end to which the wire 81 is attached can be moved left and right by pushing or pulling the inner cable.

As described above, by moving the wire stopper 83 to which the wire 81 is attached to the left and right, the direction of the caster 80 can be changed to the left and right. I can do it.

The configuration of FIG. 7B will be described in more detail with reference to FIG. FIG. 10 is a diagram illustrating a configuration in which the direction of the caster of the bed on the opposite side of the bed carrier is changed as necessary.

FIG. 9A is a view of the bed viewed from above. At one end of the bed 96, a bed carrier 97 provided with a remote controller 98 is arranged. Bed transporter 97
A wire stopper 83 is attached by a pivot 90 to the back side of the bed 96 at the end opposite to the end where is disposed, and is rotatable around the pivot 90. The wire stopper 83 is always urged in the direction of the arrow in FIG. Further, a wire 81 is attached to the A end so as to interlock with the caster 80. An inner cable of the control wire 84 is attached to the B end, and an outer cable of the control wire 84 is attached to a separately provided stopper 85.

At the other end of the control wire 84, a knob 93 is provided. By pulling the knob, the wire stopper 83 can be rotated around the pivot 90 to change the direction of the caster 80.

When the knob 93 is not pulled, the end A comes to the left end by the force of a spring (not shown), and the caster 80 turns to the left. Next, when the knob 93 is pulled, the A end moves rightward and comes to a neutral position. At this time, the caster 80 also comes straight to the neutral position and can go straight. When the knob 93 is further pulled, the A end comes to the right end, and the caster 80 also turns to the right.

In such a configuration, the bed carrier 9
When the bed is moved in step 7, the vehicle can run stably even if the nurse does not hold the end of the bed on which the bed carrier 97 is not placed. Therefore, the nurse can come to the place where the bed carrier 97 is arranged and lead the bed.

FIG. 6B is an enlarged view of a knob portion of the control wire. A groove 95 is formed in the outer cable 91 so that a protrusion 94 provided on the inner cable 92 in the outer cable 91 fits therein. Since the wire stopper 83 is always urged in the direction in which the inner cable 92 is pulled, when the knob 93 is pulled to change the direction of the caster 80, the knob 93 is twisted to fix the caster 80 in that direction. The projections 94 of the inner cable 92 are made to bite into the grooves 95 of the 91. By doing so, the position of the wire stopper 83 can be fixed against the force of a spring (not shown), and at the same time, the direction of the caster 80 is also fixed.

The groove 95 of the control wire 84 may have any structure as long as the inner cable 92 to which the pulling force always acts can be fixed by any method. In particular, the structure shown in FIG. You don't have to.

In order to move the wire stopper 83 to the left and right, a separate motor for driving the wire stopper 83 is provided.
0 may move left and right.

Further, in the above embodiment, only the configuration in which the bed support is moved up and down using a hydraulic pump has been described. However, a configuration in which one end of the bed is moved up and down electrically by combining a motor and a gear may be used. good.

[0068]

According to the present invention, when moving a bed with a four-wheel caster, the traveling direction of which is difficult to be determined, a bed carrier is provided to reduce the burden on the nurse for moving the bed. Contribute to the increase in the percentage of nursing work.

[Brief description of the drawings]

FIG. 1 is a diagram showing a basic configuration of the present invention.

FIG. 2 is a view showing another embodiment of a bed support.

FIG. 3 is a top view of one embodiment of the bed carrier of the present invention.

FIG. 4 is a side view of the bed carrier shown in FIG. 2;

FIG. 5 is a diagram showing a configuration of a hydraulic jack.

FIG. 6 is a diagram showing an example of a remote controller for operating a bed carrier.

FIG. 7 is a plan view showing another embodiment of the bed carrier of the present invention.

FIG. 8 is a view showing still another embodiment of the bed carrier.

FIG. 9 shows a configuration near a caster of a bed opposite to a bed carrier.

FIG. 10 is a diagram illustrating a configuration for changing the direction of a caster of a bed on the opposite side to a bed carrier as necessary.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Nurse 12, 97 Bed carrier 13 Patient 14 Pedestal 15, 16 Prop 17, 17 'Bed support part 18 Code 19, 98 Remote control 30 Chassis 31, 31' Right wheel 32, 70, 32 'Left wheel 33 Front wheel 33' Freewheel type front wheel 45 Stopper handle 50 Lift pipe 51 Cylinder rod 52 Connecting member 53 Hydraulic cylinder 54 Stopper 55 Roller 56 Second stage lift pipe 57 Jack outer wall 58 Meshing teeth 60 Key switch 61 Potentiometer 62 Emergency stop switch 63 Wire 64 Hook 65 Wire Hook 66 Remote control box 71 Motor 73 Differential mechanism 80 Caster 81 Wire 82, 83 Wire stopper 84 Control wire 85 Clasp 90 Pivot

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Jin Abe 2-105 Yoshikawacho, Obu City, Aichi Prefecture

Claims (11)

[Claims] 1. A bed carrier used for moving a bed, wherein the bed carrier has a traveling direction controlled in accordance with a command given by remote control, and lifts one end of the bed.
A bed transporter for moving a bed with a caster at the other end of the bed attached to the floor. 2. The bed carrier according to claim 1, wherein the bed carrier is configured to be able to climb a slope of 3 to 6%. 3. The bed transport vehicle according to claim 1, comprising two independently driven drive wheels. 4. The bed carrier according to claim 1, wherein there is only one drive wheel. 5. Wheels are provided on both sides, and the wheels on both sides are driven via a differential mechanism. When the bed carrier turns, the left and right wheels rotate by the function of the differential mechanism. 2. The bed carrier according to claim 1, wherein a difference in the number facilitates turning. 6. The bed carrier according to claim 5, wherein wheels provided in addition to the wheels provided on the both side surfaces are omnidirectional wheels. 7. The bed transporter is provided with a bed lifting mechanism for lifting one end of the bed, and the bed lifter is horizontally rotatable with respect to a chassis of the bed transporter. Claim 1
7. The bed carrier according to any one of items 1 to 6. 8. The bed carrier according to claim 7, wherein the bed lifting mechanism actively performs horizontal rotation when the bed carrier changes a traveling direction. 9. A bed transported by the bed transport vehicle according to claim 1, wherein a fixing means for fixing a direction of the caster is attached so that a caster on a side on the floor does not rotate freely. A bed characterized by: 10. The bed according to claim 9, wherein the fixing means controls the direction of the caster on the floor on the floor in accordance with the traveling direction according to an instruction by remote control. 11. A bed carrier used for moving a bed, remote control means for giving a command to the bed carrier by remote control, and movement of the bed carrier according to a command from the remote control means. The traveling direction control means for controlling the direction, and bed support means for lifting one end of the bed,
A bed transporter for moving a bed with a caster at the other end of the bed attached to the floor.