JP2023007665A - body carrier - Google Patents

Abstract

To provide a body carrier capable of descending a staircase while a carried person is kept lying, and also capable of smoothly and easily changing a direction at a landing of the staircase.SOLUTION: A body carrier comprises: a fixed placement table 2 on which a lower body of a carried person can be placed; a movable placement table 3 that is rotatably connected with the fixed placement table 2 so as to raise a head side, and on which an upper body of the carried person can be placed; a gate-shaped operation frame 4 that is rotatably mounted at an end part of the head side of the movable placement table 3; a gas spring unit 5 with a lock mechanism that is biased in a direction of raising the movable placement table 3; a pair of right and left fixed side caterpillar tracks 6 that are provided on the fixed placement table 2; a pair of right and left movable side caterpillar tracks 7 that are provided on the movable placement table 3; and wheels 8 that are provided on the fixed placement table 2, and are composed of rear wheels 27 and intermediate wheels 28, which are wheels for traveling, and front wheels 29. The movable placement table 3 can be held at an arbitrary angle relative to the fixed placement table 2 in a predetermined angular range.SELECTED DRAWING: Figure 8

Description

TECHNICAL FIELD The present invention relates to a body transport vehicle used to transport a person who has difficulty walking, such as a sick person or an elderly person, downstairs using stairs.

As this type of body carrier, for example, there is a patient carrier disclosed in Patent Document 1. This patient transport vehicle, as shown in FIG. and an endless track 55 disposed between the front wheels 52 and the rear wheels 53 of the bed 51. When moving on a flat surface such as a hallway, the endless track 55 is provided. The grounding position of the endless track 55 is set slightly higher than the grounding positions of the front wheels 52 and the rear wheels 53 so as not to touch the ground.

Therefore, on a flat surface such as a corridor, the endless track 55 does not act as movement resistance, and as shown in FIG. can be made On the other hand, in the stairs, as shown in FIG. 16, the endless track 55 contacts a plurality of nosings (tips of the treads) SN of the stairs, so that the bed 51 does not float significantly, and the endless track 55 is Since it acts as a brake, it is possible to descend the stairs safely at an appropriate speed along the line connecting the nosings SN of each step.

JP-A-2004-97419

The above-mentioned patient transport vehicle descends the stairs with the person being transported lying down, so it has the advantage that the person being transported does not feel fear. In the case of folding stairs that change direction, there is a problem that it is difficult to change the direction of the patient transport vehicle on the landing, and it is not possible to go down the stairs smoothly.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a transport vehicle that allows a person to be transported to go down stairs while lying down, and that can smoothly and easily change direction on the landing of the stairs. .

In order to solve the above-mentioned problems, the invention according to claim 1 includes a fixed table on which the lower half of the body of a transported person is placed, and a fixed table that is rotatably connected to the fixed table so that the head side can be raised. a movable table on which the upper body of a person to be transported is placed; biasing means for biasing the movable table in a direction to raise it; holding means for holding the movable table at an arbitrary angle; a holding release means for releasing the holding of the mounting table; a fixed endless track provided on the fixed mounting table; a movable endless track provided on the movable mounting table; and a traveling track provided on the fixed mounting table. wheels, and the grounding position of the running wheels is set lower than the grounding position of the fixed endless track.

According to a second aspect of the invention, there is provided the body transport vehicle according to the first aspect of the invention, wherein an operation frame is attached to the movable table, and an operation portion for operating the holding release means is provided on the operation frame. It is characterized in that it is arranged in

Further, the invention according to claim 3 is the body transport vehicle according to the invention according to claim 2, wherein the operation frame is attached to the movable table so that the mounting angle with respect to the movable table can be changed. and

As described above, in the body transport vehicle of the invention according to claim 1, the movable platform on which the upper half of the body of the person to be transported rests is placed so that the head side can be raised. Biasing means that is rotatably connected to the fixed stage and biases the movable stage in a direction to raise it, holding means that holds the movable stage at an arbitrary angle, and holding of the movable stage by the holding means When descending the stairs, the movable platform is knocked down to hold the transported person lying down, and on the landing of the stairs, the movable platform is raised to shorten the total length. After changing the direction while holding the carrier in this state, the movable platform can be knocked down again and the person to be transported can go down the stairs with the person being transported lying down.

In particular, when raising the movable mounting table, the movable mounting table is lifted by the biasing force of the biasing means by releasing the holding of the movable mounting table by the holding releasing means. When the movable mounting table is to be laid down, the holding of the movable mounting table by the holding releasing means is released and the transporter puts his/her weight on the head side of the movable mounting table. Since it is only necessary to push down to a predetermined angle and hold it at that angle by the holding means, even a person who does not have physical strength can easily raise and lower the movable table, and the body carrier can be moved from the stairs to the landing. A series of movements such as transition, turning of the body carrier on the landing, and transition of the body carrier from the landing to the stairs can be performed smoothly and easily.

In the body transport vehicle according to the second aspect of the invention, the operation frame is attached to the movable table, and the operation part for operating the holding release means is disposed on the operation frame. Since the operation of raising and lowering the movable table can be performed via the operation frame while performing the hold release operation by the part, the workability of raising and lowering the movable table is excellent.

In addition, since the body transport vehicle of the invention according to claim 3 can change the mounting angle of the operation frame with respect to the movable table, the operation frame can be set at an optimum position according to the physique of the person being transported. The operability of the body transport vehicle is further improved.

1 is a perspective view showing one embodiment of a body carrier according to the present invention; FIG. Fig. 10 is a plan view showing the body transport vehicle of the same; It is a side view which shows a body conveyance vehicle same as the above. It is a front view which shows a body conveyance vehicle same as the above. FIG. 5 is a cross-sectional view taken along line XX of FIG. 4; Fig. 3 is a plan view showing a state in which a seat mat, a back mat and a headrest are removed from the body transport vehicle; It is a bottom view which shows the state which removed the seat mat, the back mat, and the headrest from the body conveyance vehicle same as the above, and knocked down the movable mounting base. (a) is a cross-sectional view taken along the line YY in FIG. 4, and (b) is the same body transport vehicle in which the movable table is laid down from the state of (a) and flattened along the line YY in FIG. FIG. 5C is a cross-sectional view taken along the line YY in FIG. 4, with the movable table raised from the state shown in FIG. 4A. 5(a) is a side view showing the body transport vehicle in a folded state, and FIG. 4(b) is a cross-sectional view of the body transport vehicle in the folded state taken along the line YY in FIG. 4. FIG. (a) to (c) are operation explanatory diagrams showing the corridor transportation operation of the same body transportation vehicle. (a) to (c) are motion explanatory diagrams showing the stair transport motion of the same body transport vehicle. FIGS. 4(a) to 4(c) are motion explanatory diagrams showing a landing transport motion to a stair transport motion of the same body transport vehicle. FIG. (a) to (c) are motion explanatory diagrams showing a stair transport motion to a hallway transport motion of the same body transport vehicle. FIG. 11 is a side view showing a patient transport vehicle that is a conventional body transport vehicle; FIG. 11 is a side view showing a corridor transport state by the same patient transport vehicle; FIG. 11 is a side view showing a state of stair transport by the same patient transport vehicle;

Embodiments will be described below with reference to the drawings. As shown in FIGS. 1 to 7, this body carrier 1 includes a fixed table 2 on which the lower half of the body of a person to be carried is placed, and is rotatably connected to the fixed table 2 so that the head side can be raised. a movable platform 3 on which the upper half of the body of the transported person is placed, a gate-shaped operation frame 4 rotatably attached to the end of the movable platform 3 on the head side, and the movable platform 3 is raised. A gas spring unit 5 with a lock mechanism that biases in a direction, a pair of left and right fixed side endless tracks 6 provided on the fixed mounting table 2, a pair of left and right movable side endless tracks 7 provided on the movable mounting table 3, and wheels 8 provided on the fixed mounting table 2 .

The fixed mounting table 2 includes a metal seat frame 11 and a cushioning seat mat 12 attached to the seat frame 11. The movable mounting table 3 includes a metal back frame 13 and the back frame 13. A back mat 16 and a headrest 17 having cushioning properties are attached to the movable table 3, and the lower end (front end) of the back frame 13 of the movable table 3 is the rear end of the seat frame 11 of the fixed table 2. is rotatably supported on the

The operation frame 4 is provided with a main handle 18 having grip portions extending in the horizontal direction, and a pair of left and right auxiliary handles 19 having grip portions extending in the vertical direction and connected to both sides of the main handle 18, respectively. A lower end portion of the operation frame 4 having a shape is rotatably supported by an upper end portion of the back frame 13 .

A support portion 14 of a back frame 13 that supports the operation frame 4 is formed with a plurality of holes 15 at regular angular intervals on a concentric circle about the rotation shaft. By inserting the fixing pin 20 into both the hole 15 and a hole (not shown) formed at the tip of the operation frame 4, the operation frame 4 can be held at a plurality of rotation angles in stages. It is possible. Therefore, by appropriately changing the rotation angle of the operation frame 4, the height position of the grip portion can be adjusted according to the physique of the transporter who travels the body transport vehicle 1 and the like.

The gas spring unit 5 includes a pair of cylinders 21 in which a pressurized gas such as compressed air or compressed nitrogen gas and an oil liquid as a lubricating liquid are sealed, and lock release pins extending from each cylinder 21 are inserted. and a lock mechanism for holding or releasing the holding of the piston rod 22 at an arbitrary position. ing.

The closing side end of the cylinder 21 is positioned at the lateral center of the seat frame 11 via a bracket 23 , and the extending end of the piston rod 22 is positioned at the lateral center of the back frame 13 via a bracket 24 . , and the back frame 13 is raised by extending the piston rod 22 .

The lock mechanism includes an operation lever 26 for advancing and retracting the unlocking pin via an operating wire 25. By operating the operating lever 26 to advance and retract the unlocking pin, the locking mechanism is biased in the extending direction. The piston rod 22 can be held at an arbitrary position or released from the holding.

Two sets of the operating lever 26 and the operating wire 25 are prepared. One operating lever 26 is attached to the main handle 18 of the operating frame 4, and the other operating lever 26 is attached to one auxiliary handle 19, respectively. Therefore, even if the transporter grips either the main handle 18 or the auxiliary handle 19, the operator can hold or release the piston rod 22 without changing the grip. Excellent for

The pair of fixed-side endless tracks 6 are attached to the lower sides of the seat frame 11 of the fixed mounting table 2, respectively, and extend from the rear end portion of the seat frame 11 to the intermediate portion thereof. The pair of movable endless tracks 7 are attached to the lower side of the back frame 13 of the movable mounting table 3 so that the front ends thereof are adjacent to the inner sides of the rear ends of the pair of left and right fixed endless tracks 6. and extends to the rear of the back frame 13 . Incidentally, the fixed endless track 6 and the movable endless track 7 can run by adjusting the inter-axle distance of the pulleys arranged in the front and rear so that tension is generated in each endless belt constituting each endless track, for example. It sometimes acts as a brake.

The wheels 8 are a pair of left and right large-diameter rear wheels 27 which are rotatably supported by a pair of left and right rotation shafts of the back frame 13 and which protrude outward from the back frame 13 . An intermediate wheel 28 attached to the central portion of the seat frame 11 in the left-right direction at a position corresponding to the front end portion of the fixed side endless track 6 in the direction of the center wheel 28, and left and right wheels attached to the left and right corner portions of the front end portion of the seat frame 11, respectively. When transporting a flat surface such as a corridor, the pair of left and right rear wheels 27 and intermediate wheels 28 are used as running wheels, that is, the front wheels 29 and the fixed side endless track. The contact positions of the rear wheel 27 and the intermediate wheel 28 are set several millimeters lower than the contact positions of the front wheel 29 and the fixed endless track 6 so that the track 6 does not touch the ground.

In the transport vehicle 1 constructed as described above, for example, as shown in FIG. 8(a), the transporter pulls the operation lever 26 of the lock mechanism of the gas spring unit 5 while the movable table 3 is raised to some extent. is operated to release the holding of the piston rod 22, and when the operation frame 4 is pushed down by applying the weight downward, the piston rod 22 is pushed into the cylinder 21 against the urging force of the pressurized gas in the cylinder 21. When the movable mounting table 3 is laid flat and the operation of the operating lever 26 is released, the movable mounting table 3 is brought into that state. It can be held and transported in a fully lying position.

On the other hand, in the state shown in (a) or (b) of FIG. Since the piston rod 22 is extended by the urging force of the pressurized gas and the movable table 3 is raised, for example, as shown in FIG. When the operation of is released, the movable table 3 is held at that angle, and the overall length can be shortened.

Further, when the operation frame 4 is fixed in the most raised state with respect to the movable table 3 and the operation lever 26 is operated to release the holding of the piston rod 22, the movable table 3 is moved to the maximum position shown in FIG. , (b), the body transport vehicle 1 can be held in the folded state by releasing the operation of the operating lever 26 in this maximum rotating state. Therefore, after transporting the person to be transported downstairs using this body transport vehicle 1, the body transport vehicle 1 is folded when it is carried upstairs in order to transport the next person to be transported downstairs. It is easy to use because you can carry it with you.

A method of transporting a person to be transported from an upper floor to a lower floor via a staircase landing using this transport vehicle 1 will be described below. First, as shown in FIG. 10(a), a person to be transported (not shown) is placed on the body transport vehicle 1 which holds the movable stage 3 slightly raised with respect to the fixed stage 2, and the transporter C While grasping the auxiliary handle 19 and pushing the body transport vehicle 1, the person transports the corridor CD in the direction of the stairs. At this time, as described above, only the pair of left and right rear wheels 27 and intermediate wheels 28, which are running wheels, are in contact with the corridor surface, and the front wheels 29 and the fixed endless track 6 are slightly lifted from the corridor surface. As a result, the fixed side endless track 6 does not act as movement resistance, and the body carrier 1 can be smoothly run.

As shown in FIG. 4(b), after the front wheel 29 crosses the topmost stair nosing SN of the descending stairs flush with the corridor surface, the body is transported before the middle wheel 28 crosses the topmost stair nosing SN of the descending stairs. The car 1 stops running, and the transporter C shifts from the auxiliary handle 19 to the main handle 18, operates the operation lever 26 to release the piston rod 22, and puts his/her weight downward to push down the operation frame 4. As a result, as shown in FIG. 4(c), the movable table 3 is flattened, the operation of the operating lever 26 is released, and the person to be transported is completely laid down.

While lifting the movable stage 3 side with the person to be transported completely lying down, as shown in FIG. Go down the stairs so that it touches the At this time, as described above, since the difference between the contact positions of the rear wheels 27 and the intermediate wheels 28 and the contact positions of the front wheels 29 and the fixed-side endless track 6 (movable-side endless track 7) is about several millimeters, The mounting table 2 and the movable mounting table 3 do not rise and fall significantly, and the fixed-side endless track 6 and the movable-side endless track 7 serve as brakes. You can safely descend stairs at a reasonable speed.

As shown in FIG. 1B, when the front wheels 29 of the body transport vehicle 1 contact the landing LS, the movable endless track 7 comes into contact with a plurality of stair nosings SN, as shown in FIG. 1C. By operating the operation lever 26 so as to maintain the state, while gradually raising the movable mounting table 3 relative to the fixed mounting table 2, the user descends the stairs until the rear wheels 27 and intermediate wheels 28 touch the landing LS. To go.

When the rear wheels 27 and intermediate wheels 28 of the transport vehicle 1 touch the landing LS, as shown in FIG. As a result, the movable table 3 is further raised with respect to the fixed table 2, and the total length of the body carrier 1 is shortened.

Subsequently, the body carrier 1 is turned on the landing LS so that its front side faces the descending stairs. At this time, as described above, by raising the movable table 3, the total length of the body transport vehicle 1 is shortened, so even if the landing LS is narrow, the direction can be easily changed.

Then, as shown in FIG. 4(b), after the front wheel 29 has crossed the topmost step nosing SN of the descending stairs flush with the dancing scene, the intermediate wheel 28 is in front of passing over the topmost step nosing SN of the descending stairs. After stopping the movement of the transport vehicle 1, the rear wheels 27 and intermediate wheels 28 touch the downstairs corridor CD while performing the same operation as when going down the stairs from the upstairs corridor CD to the landing LS. Go down the stairs until you reach the destination, and move down the corridor CD to the destination (see FIG. 12(c) and FIGS. 13(a) to (c)).

After the transportation of the person to be transported is completed in this way, when the next person to be transported must be transported, as shown in FIG. Go up the stairs and carry out the transport work of the next person to be transported.

As described above, in the body transport vehicle 1, the movable table 3 can be lifted simply by operating the operation lever 26 to release the holding of the piston rod 22. Therefore, when the movable table 3 is raised to an appropriate angle, , the angle can be held by releasing the operation of the operating lever 26. When the movable table 3 is to be tilted, the operating lever 26 is operated to release the piston rod 22 from the holding position, and the carrier can move. By putting the weight on the head side of the mounting table 3 to push it down to a predetermined angle, and then releasing the operation of the operation lever 26, the movable mounting table 3 can be held at that angle even by a carrier who does not have physical strength. The lifting work can be easily performed, such as the transition of the body transport vehicle 1 from the stairs CD to the landing LS, the direction change of the body transport vehicle 1 on the landing LS, and the transition of the body transport vehicle 1 from the landing LS to the stairs. A series of operations can be performed smoothly and easily.

In addition, in this body carrier 1, an operation frame 4 having a main handle 18 and an auxiliary handle 19 is attached to the movable table 3, and an operation lever 26 is provided on the main handle 18 and the auxiliary handle 19, respectively. Therefore, the transporter holding the main handle 18 or the auxiliary handle 19 can raise and lower the movable table 3 via the operation frame 4 while releasing the hold by the respective operation levers 26. The workability of raising and lowering the mounting table 3 is excellent.

By appropriately changing the rotation angle of the operation frame 4 attached to the movable table 3, the body transport vehicle 1 can adjust the height positions of the main handle 18 and the auxiliary handle 19 according to the physique of the transporter. can be adjusted, so operability is excellent.

In the above-described embodiment, the gas spring unit 5 with a lock mechanism is used to bias the movable mounting table 3 in the direction to raise it. It suffices to have an urging means for urging, a holding means for holding the movable mounting table 3 at an arbitrary angle, and a holding release means for releasing the holding of the movable mounting table 3 by the holding means. It is also possible to provide a coil spring that biases the table 3 in a direction to raise it, and a lock mechanism that holds the coil spring in an arbitrary compressed state or releases the hold.

In the above-described embodiment, in addition to the rear wheels 27 and the intermediate wheels 28, which are running wheels, the front wheels 29 that first come into contact with the landing LS are provided. Instead, it is possible to employ a sliding contact member that allows the body transport vehicle 1 to slide forward and backward while in contact with the landing.

INDUSTRIAL APPLICABILITY The present invention can be used to transport a person who has difficulty walking, such as a sick person or an elderly person, downstairs using stairs.

REFERENCE SIGNS LIST 1 body carrier 2 fixed table 3 movable table 4 operation frame 5 gas spring unit (biasing means, holding means, holding release means)
6 fixed-side endless track 7 movable-side endless track 8 wheel 11 seat frame 12 seat mat 13 back frame 14 support portion 15 hole 16 back mat 17 headrest 18 main handle 19 auxiliary handle 20 fixing pin 21 cylinder 22 piston rod 23 bracket 24 bracket 25 Operation wire 26 Operation lever 27 Rear wheel (running wheel)
28 Intermediate wheel (running wheel)
29 front wheel

In order to solve the above-mentioned problems, the invention according to claim 1 includes a fixed table on which the lower half of the body of a transported person is placed, and a fixed table that is rotatably connected to the fixed table so that the head side can be raised. a movable table on which the upper body of a person to be transported is placed; biasing means for biasing the movable table in a direction to raise it; holding means for holding the movable table at an arbitrary angle; a holding release means for releasing the holding of the mounting table; a fixed endless track provided in the vicinity of the fixed mounting table; a movable endless track provided in the vicinity of the movable mounting table; The body carrier is provided with running wheels provided on a mounting base, and the grounding position of the running wheels is set lower than the grounding position of the fixed endless track.

Claims (3)

a fixed mounting table on which the lower body of the transported person is placed;
a movable table on which the upper body of the person to be carried is placed, which is rotatably connected to the fixed table so that the head side can be raised;
an urging means for urging the movable table in a direction to raise it;
holding means for holding the movable mounting table at an arbitrary angle;
holding release means for releasing the holding of the movable table by the holding means;
a fixed endless track provided on the fixed mounting table;
a movable endless track provided on the movable mounting table;
and a traveling wheel provided on the fixed mounting base,
A body transport vehicle, wherein the grounding position of the running wheels is set lower than the grounding position of the fixed endless track. An operation frame is attached to the movable table,
2. The body transport vehicle according to claim 1, wherein an operation portion for operating said holding release means is provided on said operation frame. 3. The body transport vehicle according to claim 2, wherein the operation frame is attached to the movable mounting table so that the mounting angle with respect to the movable mounting table can be changed.

Images