JPH08131481A - Patient transfer carriage - Google Patents

Abstract

PURPOSE: To easily and safely transfer a patient from or on a bed. CONSTITUTION: A 2nd power transmission wheel is coupled rotatably by fixing the base end part of a 1st arm 10 to a sleeve 8 coupled rotatably to a 1st support shaft 6 which is stood on an elevation table 1b and where the 1st power transmission wheel is fixed and the base end part of a 2nd arm 16 and a 2nd power transmission wheel to a 2nd support shaft 12 inserted into the tip part of the 1st arm 10. Then the center part of the palette frame 24a of a bed palette 23 and a 4th power transmission wheel are fixed to a 3rd support shaft 18 inserted into the tip part of the 2nd arm 16, and transmission chains are extended between the 1st and 2nd power transmission wheels and 3rd and 4th power transmission wheels respectively. Both the arms 10 and 16 are bent through the rotating operation of a 1st handle to move the bed palette 23 in parallel, and transfer conveyors of the bed palette 23 intrude into or exit from between the patient and bed through the rotating operation of the 2nd handle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sick person transfer cart that is applied when transferring a sick person to a bed in a hospital room or when transferring from a bed.

[0002]

2. Description of the Related Art Conventionally, for example, when a supine sick person is transferred from a bed in a hospital room to a moving bed, the sick person is lifted and transferred by a plurality of people's hands.

[0003]

When the sick person is manually transferred, the transfer work is laborious and the patient is transferred in an unreasonable posture. An object of the present invention is to simplify the transfer work of a sick person and to make it safe, and to save manpower during transfer of the sick person.

[0004]

According to a first aspect of the present invention, a lift table installed on the upper end of a movable lifter so as to be lifted and lowered horizontally rotates clockwise or counterclockwise by rotation of a first handle shaft. A second end that connects the base end of the first arm and horizontally rotates in a direction opposite to the rotation direction of the first arm in conjunction with the distal end of the first arm and the rotation operation of the first arm. The base ends of the arms are connected to each other so that the both arms can be folded and unfolded, and the distal end of the second arm and the rotation of the second arm are interlocked with the rotation operation of the second arm. A pallet frame of a bed pallet that moves in parallel on the lifting table and on both sides of the lifting table while being horizontally rotated in the opposite direction to the pallet frame is connected to the bed pallet in opposite directions by rotation of the second handle shaft. Circulate A structure in which a plurality of transfer conveyors are provided, each of which has a pair of upper and lower conveyor belts that sneak between the equipment and the sick person or escape from between the bedding and the sick person, and are arranged in the longitudinal direction of the bed pallet. Have.

According to a second aspect of the present invention, the sleeve of the first arm is rotatably coupled to the first support shaft erected on the lifting table and is driven to rotate by the rotation of the first handle shaft. A first transmission having an end fixed and a base end of the second arm fixed to a second support shaft rotatably coupled to the tip end of the first arm and fixed to the first support shaft. A wheel and a second transmission wheel fixed to the second support shaft are connected to each other by a first transmission member mounted on the both transmission wheels, and a third portion rotatably coupled to a tip end portion of the second arm. A central portion of the pallet frame is fixed to the support shaft, and a third transmission wheel rotatably coupled to the second support shaft and a fourth transmission wheel fixed to the third support shaft are used for the both transmission wheels. It has a structure in which it is linked by a second transmission member that is hung on the That.

[0006]

According to the first aspect of the invention, when the first handle shaft rotates, both arms bend and extend, and the bed pallet moves in parallel on the elevating table and laterally thereof. When the second handle shaft rotates, the pair of conveyor belts of each transfer conveyor of the bed pallet slips between the sick person and the bedding of the bed, and the sick person is placed on the bed pallet, or each transfer of the bed pallet is performed. Each pair of conveyor belts of the loading conveyor escape from between the sick person and the bedding, and the sick person is transferred from the bed pallet onto the bedding.

According to the second aspect of the invention, when the sleeve is rotated clockwise, for example, with both arms folded, the first arm horizontally rotates clockwise and the second transmission wheel and the second support shaft move. It is driven to rotate counterclockwise and the second
The arms are horizontally rotated counterclockwise and both arms are deployed, and the fourth transmission wheel is rotationally driven clockwise to rotate the third support shaft clockwise, and the bed pallet rotates clockwise. While moving parallel to one side of the lifting table. Further, when the sleeve is rotated counterclockwise in this state, the first arm horizontally rotates counterclockwise and the second transmission wheel and the second support shaft are rotationally driven clockwise,
The second arm rotates clockwise to fold both arms, the fourth transmission wheel is driven to rotate counterclockwise, the third spindle rotates counterclockwise, and the bed pallet rotates counterclockwise. While moving, move to the lifting table.

[0008]

According to the first aspect of the present invention, the bed pallet is moved in parallel by the bending and extending operations of the first and second arms and is moved up and down by the elevating operation of the elevating table, and each transfer conveyor of the bed pallet is operated by the sick person and the bedding. By sneaking in between, the sick person can be placed on the bed pallet without labor and transferred safely from the bed to the bed pallet without changing the posture of the sick person. The sick person can be transferred from the bed pallet onto the bed safely without any trouble, and the transfer operation of the sick person can be safely and easily performed without manpower.

According to the second aspect of the present invention, the bending / extending movement of both arms and the parallel movement movement of the bed pallet can be performed accurately and smoothly, and the mechanism for parallel movement of the bed pallet can be simplified and made compact. it can.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. The movable lifter 1 of the sick person transfer cart A is horizontally installed at a lower portion of the base 1a having a rectangular planar shape, and an appropriate number of casters mounted on the lower surface of the base 1a and braked by a brake mechanism. 1b, an elevating mechanism 1c installed on the base 1a and driven by a hydraulic cylinder, and an operating lever for moving the piston rod of the hydraulic cylinder forward and backward, which is connected to the upper end of the elevating mechanism 1c and installed horizontally. It is provided with an elevating table 1d that is moved up and down by a lowering operation, a hand push handle 1e that pushes the movable lifter 1, and a foot pedal 1f that operates a hydraulic cylinder to raise and lower the elevating table 1d steplessly.

Two pairs of front and rear outriggers 2 are attached to the base 1a of the movable lifter 1 to prevent the movable lifter 1 from overturning, and each of the outriggers 2 moves to the left or right of the base 1a. And this moving member 2a
Casters 2 that are attached to the tip of the and roll on the floor
b and a third handle 2c for moving the moving arm 2a back and forth by rotating operation.

The movable lifter 1 has a first handle 4 at the outer end thereof.
The first handle shaft 3 which is fixed and is rotationally driven by the rotation operation of the first handle 4 is installed horizontally, and the worm gear 5 is fixed to the inner end of the first handle shaft 3.

A cylindrical sleeve 8 through which the first support shaft 6 is inserted is mounted on a first support shaft 6 which is erected on the lift table 1d of the movable lifter 1 and fixed to the lift table 1d. A drive wheel (worm wheel) 9 meshed with the worm gear 5 is fixed to the lower portion of the sleeve 8 by means of a rotating operation of the first handle 4 to move the drive wheel 9 and the sleeve 8 in the forward and reverse directions. It is driven to rotate.

A hollow base end portion of a hollow first arm 10 which is horizontally rotated about the base end portion by a rotation operation of the first handle 4 is fixed to an upper portion of the sleeve 8, and is attached to an upper end of the first support shaft 6. Has a first transmission wheel (chain wheel) 11 fixed thereto.

A support member 35 whose base end is fixed to the sleeve 8 and rotates together with the sleeve 8 is fixed to the lower surface of the first arm 10, and the tip of this support member 35 is in contact with the upper surface of the lifting table 1d. The casters 36 that rotate around the sleeve 8 are fixed while supporting the first arm 10 in this state.

At the tip of the first arm 10, the first arm 1
A hollow shape having a length equal to 0 and horizontally rotating around the base end in a direction opposite to the rotation direction of the first arm 10 following the rotation operation of the first arm 10. The second arm 16 is connected.

The second arm 1 is attached to the tip of the first arm 10.
Second support shaft 1 fixed to the base end of 6 and having a vertical axis
2 is inserted and rotatably coupled.

Below the second support shaft 12, the second transmission wheel 1 having half the number of teeth of the first transmission wheel 11 is provided.
4 is fixed, and the second transmission wheel 14 and the first transmission wheel 11 are hooked with a first transmission chain 15 which is inserted into the first arm 10 and connects both the transmission wheels 11 and 14. .

A third transmission wheel 17 inserted into the base end of the second arm 16 is rotatably coupled to the upper portion of the second support shaft 12.

A third support shaft 18 inserted through the front end of the second arm 16 is rotatably coupled to the front end of the second arm 16, and the number of teeth of the third transmission wheel 17 is below the third support shaft 18. Two
The fourth transmission wheel 20 having double the number of teeth is fixed.

A second transmission chain 21 is connected to the third transmission wheel 17 and the fourth transmission wheel 20 to connect the two transmission wheels 17 and 20.

When not in use, the first arm 10 and the second arm 16 are placed in parallel with the first handle shaft 3 on the elevating table 1d in a state of being folded in two and superposed.

In this state, when the drive wheel 9 is rotated clockwise, for example, by rotating the first handle 4 to horizontally rotate the first arm 10 clockwise, the second transmission wheel 14 causes the first transmission wheel 14 to rotate. With the rotation of the first
It is rotationally driven counterclockwise by the transmission chain 15, the second support shaft 12 rotates counterclockwise, and the second arm 16 horizontally rotates counterclockwise in conjunction with the rotation operation of the first arm 10. .

When the first arm 10 horizontally rotates clockwise by 90 °, the second arm 16 horizontally rotates counterclockwise by 180 ° and the first arm 10 and the second arm 16 move to one side of the lifting table 1d. It is linearly extended toward one side and deployed in a state orthogonal to the first handle shaft 3.

Further, in this state, the drive wheel 9 is rotated counterclockwise to move the first arm 10 counterclockwise by 90 °.
When horizontally rotated, the second transmission wheel 14 is rotationally driven in the clockwise direction, and the second support shaft 12 is rotated in the clockwise direction.
The arm 16 horizontally rotates 180 ° clockwise in conjunction with the rotation operation of the first arm 10, and the first arm 10 and the second arm 10 are rotated.
The arm 16 is folded in two on the elevating table 1d in a state where the second arm 16 is superposed on the first arm 10.

By rotating the first handle 4 clockwise or counterclockwise with the arms 10 and 16 folded, the arms 10 and 16 are extended to the left and right sides of the lifting table 1d in the same extended state. Can be deployed.

A pallet frame 24 in the shape of a rectangular frame is sized so that a supine body can be mounted on the tip of the second arm 16 and the center of which is fixed to the third support shaft 18.
And a plurality of transfer conveyors 25 arranged in two rows in the longitudinal direction in the frame of the pallet frame 24.
A bed pallet 23 that has a and that moves in parallel while rotating in conjunction with the bending and stretching operations of both arms 10 and 16 is connected via a third support shaft 18 so as to be horizontally rotatable.

In a state where both arms 10 and 16 are folded in two, the bed pallet 23 has both arms 10 and 16.
16 and the first handle shaft 3 are placed in parallel with each other on the elevating table 1d.

When the arms 10 and 16 are deployed in a straight line, the bed pallet 23 is transverse to the arms 10 and 16 and is parallel to the first handle shaft 3 so as to extend laterally to one side of the lifting table 1d. Placed.

With the bet pallet 23 placed horizontally on the lifting table 1d, for example, the first arm 10 is horizontally rotated 90 ° clockwise to move the second arm 16 counterclockwise.
When horizontally rotated by 80 °, the second transmission wheel 14 and the third transmission wheel 17 are rotationally driven in the counterclockwise direction, and the fourth transmission wheel 20 moves the second transmission chain 21.
Rotation angle due to rotation of the second arm 1 and the second arm 1
The pallet frame of the bed pallet 23 is driven to rotate clockwise by a rotation angle of 1/2 of the rotation angle of the second support shaft 12 due to the difference from the rotation angle in the clockwise direction due to the rotation of 6 in the counterclockwise direction. The reference numeral 24 horizontally rotates in the clockwise direction together with the third support shaft 18 and moves in parallel to one side of the lifting table 1d while maintaining the state in which the reference numeral 24 is always in parallel with the first handle shaft 3.

In this state, the first arm 10 is horizontally rotated counterclockwise by 90 ° and the second arm 16 is rotated clockwise by 1 °.
When horizontally rotated by 80 °, the second transmission wheel 14 is rotationally driven in the clockwise direction and the fourth transmission wheel 20 is rotationally driven in the counterclockwise direction to rotate the third support shaft 18 in the counterclockwise direction and the bed pallet. 23 moves in parallel to the lifting table 1d side while rotating counterclockwise, and when both arms 10 and 16 are folded in two on the lifting table 1d, the bed pallet 23 returns and moves onto the lifting table 1d. Then, they are placed sideways on both arms 10, 16.

Pallet frame 2 of bed pallet 23
A center frame 24a is installed at the center of the pallet frame 24 in the longitudinal direction. The center frames 24a of the pallet frame 24 are symmetrically arranged on both sides of the center of the pallet frame 24 with their axes shifted obliquely. Two pairs of upper and lower drive roller shafts 27 are rotatably installed along the longitudinal direction of the pallet frame 24, and the pallet frame 24 has a shaft center at both ends in the width direction, like the drive roller shafts 27 of each pair. Two pairs of upper and lower driven roller shafts 28, which are symmetrically arranged in parallel on both sides of the center of the frame 24 in the shifted state, are rotatably installed along the longitudinal direction of the pallet frame 24.

A second handle shaft 29 having a second handle 30 fixed to the outer end and an inner end disposed in the center frame 24a is provided in the center of the pallet frame 24 in the width direction in the longitudinal direction of the pallet frame 24. It is installed so that it can rotate along.

The drive gear 3 is provided at the inner end of the second handle shaft 29.
1 is fixed, and the drive gear 31 is meshed with two first pinions 32 fixed to the lower drive roller shafts 27 of the two pairs of upper and lower drive roller shafts 27, respectively. 32 is the upper drive roller shaft 2
The two second pinions 33, which are respectively fixed to 7, are engaged with each other.

An upper drive roller shaft 27 and an upper driven roller shaft 2 are provided on both sides of the central portion in the width direction of the pallet frame 24.
8 and the upper conveyor belt 25a rotatably and rotatably hung by rollers, and the lower drive roller shaft 27 and the lower driven roller shaft 28 rotatably and rotatably by rollers. A plurality of transfer conveyors 25 each having a lower conveyor belt 25b mounted therein are installed.

Elastic plates having cushioning properties are installed in the gaps between the two transfer conveyors 25 adjacent to each other.

When the drive gear 31 is rotated by rotating the second handle 30, the upper drive roller shafts 27 and the lower drive roller shafts 27 are rotationally driven in opposite directions so that the transfer conveyors 25 are rotated. Each pair of upper and lower conveyor belts 25
The a and 25b are driven to circulate in the opposite directions all at once.

The sick person transfer cart A is moved to the side of the bed B, and the movable lifter 1 is supported on the floor by the outriggers 2.
With both arms 10, 16 and the bed pallet 23 moved to above the lifting table 1d by folding both arms 10, 16 into two folds, both arms 10, 16 are deployed to bring the bed pallet 23 closer to the bed B. , The height of the bed pallet 23 is adjusted by the elevating mechanism 1c, the tip of the transfer conveyor 26 on one side is inserted between the sick person and the bedclothes of the bed B, and the second handle 30 is rotated, so that each transfer conveyor is rotated. 25 upper and lower conveyor belts 25a, 25a
Circulates and the transfer conveyors 25 gradually dive between the sick person and the bedclothes, so that the entire body of the sick person is in bed pallet 23.
On board.

In this state, the elevating table 1d and the bed pallet 23 are raised, and then the first handle 4 is rotated in the opposite direction to bend both arms 10 and 16 to move the bed pallet 23 to the elevating table 1d side. When the patient is moved in parallel and is displaced together with both arms 10 and 16 onto the lifting table 1d, the sick person can be placed on the sick person transfer carriage A and moved.

With the sick person mounted on the bed pallet 23, the sick person transfer carriage A is moved to one side of the bed B and stopped, and the movable lifter 1 is supported by the outriggers 2 on the floor. , The arms 10 and 16 and the bed pallet 23 are lifted by the elevating mechanism 1c, and then the arms 10 and 16 are unfolded by rotating the first handle 4 to move the bed pallet 23 together with the sick person above the bed of the bed B. The bed pallet 23 is moved down in parallel and placed on the bedding.

In this state, the pair of conveyor belts 25 of the moving conveyor 25 are rotated by rotating the second handle 30.
When the a and 25b are circulated and the transfer conveyors 25 are gradually pulled out from between the sick person and the bed, the sick person can be transferred from the bed pallet 23 onto the bed of the bed B.

Next, the operation and effect of the embodiment having the above-mentioned structure will be described. In this example, the first arm 10 is attached to the sleeve 8 that is rotatably coupled to the first support shaft 6 erected on the elevating table 1d of the movable lifter 1 and is rotationally driven by the rotation of the first handle shaft 3. First fixed base end
The second support shaft 1 rotatably coupled to the tip of the arm 10.
A second transmission wheel 11 fixed to the first support shaft 6 and a second transmission wheel 14 fixed to the second support shaft 12 are provided with a base end portion of a second arm 16 fixed to the second transmission wheel 2. 1
The center portion of the pallet frame 24 of the bed pallet frame 23 is attached to the third support shaft 18 rotatably coupled to the tip end portion of the second arm 16 by being continuously hit by the first transmission chain 15 mounted on The third support wheel 17 and the third support shaft 18 which are fixed to each other and are rotatably coupled to the second support shaft 12.
The fourth transmission wheel 20 fixed to the second transmission chain 21 is struck by the second transmission chain 21 hung on both transmission wheels 17, 20, and the bed pallet 23 has the second handle shaft 2
The bed pallet 23 has a pair of upper and lower conveyor belts 25a and 25b that circulate in opposite directions by the rotation of 9 and sneak between the bedding and the sick person or escape from between the bedding and the sick person. A plurality of transfer conveyors 25 arranged in the direction is provided.

Therefore, the bed pallet 23 is moved in parallel by the bending and stretching operations of the first and second arms 10 and 16 and is moved up and down by the elevating operation of the elevating table 1d. By placing the sick person on the bed pallet 23 without labor and transferring the sick person from the bed B onto the bed pallet 23 without changing the posture of the sick person without any effort by moving the patient into the bed pallet 23. In addition, the sick person can be transferred from the bed pallet 23 onto the bed B safely and safely, and the transfer operation of the sick person can be performed safely and easily without manpower.

Further, the bending / extending operation of both arms 10 and 16 and the parallel movement operation of the bed pallet 23 can be performed accurately and smoothly, and the mechanism for moving the bed pallet 23 in parallel can be simplified and made compact. it can.

[Brief description of drawings]

FIG. 1 is a side view of a sick person transfer cart showing an embodiment of the present invention.

FIG. 2 is a front view of the sick person transfer cart showing a state in which both arms are deployed.

FIG. 3 is a front view of the vicinity of a movable lift.

FIG. 4 is an enlarged cross-sectional view taken along line X1-X1 of FIG.

FIG. 5 is an enlarged sectional view taken along line X2-X2 of FIG. 2;

6 is an enlarged sectional view taken along line X3-X3 of FIG.

FIG. 7 is a plan view illustrating the unfolding operation of both arms.

FIG. 8 is a plan view illustrating movements of both arms and a bed pallet.

FIG. 9 is a plan view of a bed pallet.

10 is an enlarged arrow view taken along line X4-X4 of FIG.

[Explanation of symbols]

 1 Movable Lift 1d Lifting Table 3 1st Handle Shaft 6 1st Support Shaft 8 Sleeve 10 1st Arm 11 1st Transmission Wheel 12 2nd Support Shaft 14 2nd Transmission Wheel 15 1st Transmission Chain (1st Transmission Member) 16th 2 arms 17 3rd transmission wheel 18 3rd support shaft 20 4th transmission wheel 21 2nd transmission chain (2nd transmission member) 23 bed pallet 24 pallet frame 25 transfer conveyor 29 second handle shaft A patient transfer cart

Claims (2)

[Claims] 1. A base end portion of a first arm, which is horizontally rotated clockwise or counterclockwise by rotation of a first handle shaft, is connected to a lift table installed at an upper end of a movable lifter so as to be lifted and lowered, The distal end portion of the first arm and the base end portion of the second arm that horizontally rotates in the opposite direction of the rotation direction of the first arm in conjunction with the rotation operation of the first arm are connected to each other, and Both arms are installed so as to be foldable and expandable, and the distal end portion of the second arm and the horizontal movement in the opposite direction of the rotation direction of the second arm are interlocked with the rotation operation of the second arm. A pallet frame of a bed pallet that moves in parallel on the lifting table and on both sides of the lifting table is connected to the bed pallet, and the bed pallet rotates between the bedclothes and the sick person by rotating the second handle shaft. Diving into youth Has a pair of upper and lower conveyor belts that escape from between the bedding and the sick person, and is provided with a plurality of transfer conveyors arranged in the longitudinal direction of the bed pallet. 2. A base end portion of the first arm is fixed to a sleeve that is rotatably coupled to a first support shaft erected on the elevating table and is rotationally driven by rotation of the first handle shaft. The base end portion of the second arm is fixed to the second support shaft rotatably coupled to the tip end portion of the first arm, and the first transmission wheel fixed to the first support shaft and the first support wheel are fixed. A second transmission wheel fixed to the two support shafts is connected to each other by a first transmission member mounted on the both transmission wheels, and a third support shaft rotatably coupled to a tip end portion of the second arm is provided. By fixing the center of the pallet frame, the second
It is characterized in that a third transmission wheel rotatably coupled to the support shaft and a fourth transmission wheel fixed to the third support shaft are connected by a second transmission member mounted on both the transmission wheels. The sick person transfer cart according to claim 1.