JP2001316087A - Heavy object carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heavy abject carrying device convenient to use for unloading a heavy object such as a heavy and bulky oxygen concentrator from a vehicle and easily carrying it to a patient home and easily carrying it over a step or a level difference, if existing, with dedicated rotary wheels mounted thereon. SOLUTION: The heavy object carrying device comprises a vertical member formed of an inversely U-shaped frame material and a horizontal member axially supported at the lower end of the vertical member so as to rise and fall, in such a manner that a side face is formed into an approximately L-shaped in use. A heavy object placemen member on which a heavy object is placed is arranged on the vertical member movably vertically so as to rise and fall from the vertical member. Wheels are rotatably and axially supported at both lower ends of the vertical member, with their grounding faces being flat with the bottom face of the horizontal member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport device such as a lift cart for transporting a heavy object such as an oxygen concentrator for nursing care to a nursing home. The present invention relates to an apparatus for transferring heavy objects excellent in operability, which can easily transfer the heavy object from a room or the like to a target place.

[0002]

2. Description of the Related Art In recent years, the number of elderly people and home caregivers has increased at a remarkable rate, and patients who have been forced to recuperate at home have been devoted to treatment at homes, etc., where sufficient medical facilities are not available. The fact is that this trend is increasing year by year.

[0003] By the way, among patients who are forced to undergo such home treatment, many patients require oxygen aspiration therapy, and such patients usually have an oxygen concentrator at home as an oxygen supply source. Often installed. In this case, it is necessary to carry the oxygen concentrator into the home. However, the concentrator is very heavy, about 50 kg, and the work of loading and unloading the oxygen concentrator, which is a heavy material, from the vehicle to the patient's home. Had a problem that it required a lot of labor.

[0004] The present invention has been made in view of the above situation, and an object of the present invention is to allow such a heavy object to be easily unloaded from a vehicle to a patient's house and to be carried into the patient's house. It is an object of the present invention to provide an easy-to-use heavy-weight transfer device that can easily transfer over a staircase or a step by attaching a dedicated rotating wheel.

[0005]

In order to achieve the above object, according to the present invention, a device for transporting a heavy object includes a vertical member formed of an inverted U-shaped frame member, and a lower end of the vertical member. A horizontal member rotatably supported on the part, and a side surface shape of which is substantially L-shaped at the time of use, and a vertical member on which a heavy object mounting member for mounting a heavy object is lifted and lowered. The wheel is rotatably arranged so as to be freely and undulatingly movable with respect to the vertical member, and at both lower ends of the vertical member, a ground contact surface is flush with a bottom portion of the horizontal member. In the case where the vertical member is transported while being mounted on the heavy-weight holding member, the vertical member is configured to be transported by pulling the vertical member slightly inclined backward. Things.

According to the present invention, the heavy object placing member is configured to be able to move up and down via a motor and a speed reduction mechanism arranged on the vertical member side.

Further, the present invention is characterized in that a substantially mountain-shaped guide slope is provided on the free end side of the heavy load placing member so that the caster of the heavy load can be climbed over. Is what you do.

According to the present invention, a roller rotatably supported at each end of an X-shaped arm and a rotatable shaft are provided below the vertical member. And a stair wheel device composed of a main body to be supported and the stair wheel device is detachably mounted.

In this case, a motor and a speed reduction mechanism are provided in the main body of the wheel device for stairs.

The main body of the wheel device for stairs includes:
A latch mechanism is provided in which two rollers are pressed in the horizontal direction in a state of being in contact with the ground, and are engaged with an engagement shaft provided on the vertical member.

In this case, the motor of the wheel device for stairs is set so as to operate when the heavy object placing member is lowered to the lowest position.

According to the present invention, the staircase wheel device is configured to be stowable on the rear side of the vertical member.

In the present invention, the vertical member is provided with a holder for holding the horizontal member in the folded state when the horizontal member is folded toward the vertical member. It is a feature.

The weight to which the present invention is applied is most preferably an oxygen concentrator.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on an embodiment shown in the accompanying drawings.

FIGS. 1 and 2 are perspective views of a lift cart 1 for transporting a cubic oxygen concentrator T from a vehicle (not shown) to an unloaded patient's house.

The lift cart 1 according to this embodiment is shown in FIG.
As shown in FIG. 3 to FIG. 3, a vertical member 2 formed of an inverted U-shaped frame member and a horizontal member 3 rotatably supported at the lower end of the vertical member 2 have a side surface shape in use. About L
The concentrator mounting member 4 on which the oxygen concentrator T is mounted can be moved up and down on the vertical member 2 and can be raised and lowered with respect to the vertical member 2. In addition to being arranged and configured, at both lower ends of the vertical member 2,
The wheels 5 are rotatably supported so that the grounding surface is flush with the bottom surface of the horizontal member 3.

On a shelf 6 provided above the vertical member 2, a motor 7 for rotating the concentrator mounting member 4 up and down and a motor 7 rotatable forward and backward, and the output of the motor 7 are reduced. A speed reduction mechanism 8 is provided, and a pulley 9 of the speed reduction mechanism 8 has a substantially C-shaped cross section on both sides of the vertical member 2.
Wires 11, 11 inserted into the channel portions 10, 10 are wound so as to be wound or unwound.

The lower ends of the wires 11 are connected to both deep ends of the concentrator mounting member 4. Reference numerals 12 in FIG. 2 indicate relay pulleys rotatably supported in the shelf 6.

As shown in FIG. 1, the horizontal member 3 is rotatably supported on both lower ends of the vertical member 2 via L-shaped brackets 13 and 13 and has a plurality of bottom surfaces. Therefore, the horizontal member 3 is configured to be low enough to make the cushion member 14 contact the ground. In addition, the code | symbol 15 in FIG.
This is a folding arm that supports the horizontal member 3 in a cantilever manner with respect to the vertical member 2.

On the other hand, the concentrator mounting member 4 moves up and down from the upper surface of the horizontal member 3 to the floor of the luggage compartment of the vehicle. Is provided, and the caster roller 17 descends after the caster roller 17 ascends along the guide slope 18 and is condensed. After being guided to the upper surface of the roller 4, the caster roller 17 rolls out of the way and rides over the guide slope 18 so as not to fall off the cart.

Reference numerals 19 and 19 in FIG. 1 denote arms for holding the concentrator mounting member 4 horizontally in a cantilever manner, and the lower ends of the arms 19 and 19 are provided on the concentrator mounting member 4. The upper end of each roller 16 is rotatably supported on both sides, and the upper end of each roller 16 is
Are rotatably supported by the movable body 20 which is rotatably supported.

As described above, in this embodiment, since the horizontal member 3 and the concentrator mounting member 4 are formed so as to be lowered to a position where they come into contact with the ground, the vertical member 2 can be concentrated without taking a large height dimension. The height of the container mounting member 4 rising to the floor of the rear luggage compartment of the vehicle can be secured, and the lift cart 1 can be reduced in size to a size convenient for mounting on the vehicle. As a result, the center of gravity at the time of loading is lowered, so that a stable operation can be performed.

On both sides of the lower rear surface of the vertical member 2, there are provided engaging shafts 22 with which the stair wheel device 21 is engaged.

As shown in FIG. 1, the stair wheel device 21 has left and right X arms 23, 23 formed in an X shape.
A connecting shaft 24 rotatably supporting the X arms 23, 23, a wheel roller 25 rotatably supported at each end of the left and right X arms 23, 23, and the X arm 23. And a main body 28 having a built-in speed reduction mechanism 27.

Further, the main body 28 of the wheel device 21 for stairs is provided.
As shown in FIGS. 3 and 4, when two rollers 25 are pressed in the horizontal direction in a state where they are in contact with the ground, a latch mechanism 29 which meshes with each of the engagement shafts 22 provided on the vertical member 2 is provided.
Are arranged.

The latch mechanism 29 is set in a state where it can be engaged with the engagement shaft 22 only after the concentrator mounting member 4 is set at the lowest position (the position shown in FIG. 1).
When pressed by the engagement shaft from this state, the latch is expanded against the urging force of the spring, meshes with both engagement shafts 22 and is set in a rotatable state. Installation can be done easily with one touch. Of course, when removing the staircase wheel device 21, the engagement state between the latch and the engagement shaft 22 is released by rotating the L-shaped operation lever 29 a of the latch mechanism 29 shown in FIG. 3. Therefore, the stair wheel device 21 can be easily removed from the lift cart 1 simply by pulling the stair wheel device 21 backward from this state. Note that this latch mechanism 2
For example, although not shown, a limit switch is disposed in the safety device 9 for safety measures. If the concentrator mounting member 4 is not lowered to the lowest position by the action of the limit switch, the latch mechanism is provided. It is configured so that the mounting operation by the 29 cannot be performed.

As described above, the stair wheel device 21 is configured to be detachable from the lift cart 1, so that in general, in a situation where there are many buildings with elevators, the heavy stair wheel device 21 is permanently installed. Compared to a lift cart, the weight can be greatly reduced, handling is very light, and it can be easily installed, so even if there are stairs, transport work can be done quickly and , Which can be easily performed.

When the motor 26 is operated in this state, the X arms 23, 23 rotate in the same direction about the connection shaft 24 as the center of rotation. Therefore, the oxygen concentrator T is held corresponding to the rotation speed. You can go up the stairs as it is. Of course, it is also possible to go down the stairs by performing the reverse operation.

That is, the grip 2A of the vertical member 2
As shown in FIG. 2, a switch 30 for operating the motor 7 and the motor 26 is provided, and the operation of the motor 26 is stopped on the upper surface of the And a switch 32 for stopping the operation of the motor 7 and switching the forward / reverse direction of the motor 26, respectively.
6 are interlockingly controlled so that when one is in the operating state, the other holds the stopped state. In FIG. 2, reference numerals 33, 33 denote batteries for operating the motor 7 or 26, and reference numeral 34 denotes a foldable battery when the horizontal member 3 and the concentrator mounting member 4 are folded. It is a holder that elastically contacts the free end side of the concentrator mounting member 4 to maintain the state.

Since the lift cart 1 according to this embodiment is configured as described above, when transporting the oxygen concentrator T, the lift cart 1 is lowered from the rear luggage compartment of the vehicle, and The locked state is released, and the horizontal member 3 and the concentrator placing member 4 are rotated in the horizontal direction, and the horizontal member 3, the concentrator placing member 4, and the vertical member 2 have a substantially L-shaped side surface. Set so that it looks like

Next, after the switch 31 provided on the shelf 6 of the vertical member 2 is turned on and the switch 30 is kept pressed, the motor 7 operates to raise the concentrator mounting member 4. When the concentrator mounting member 4 is raised to a position flush with the floor of the rear luggage compartment of the vehicle, the pressing operation of the switch 30 is stopped.

Thereafter, the oxygen concentrator T is pressed via the caster rollers 17 and 17 to move it from the rear luggage compartment to the concentrator mounting member 4. At this time, the concentrator mounting member 4
Since the guide slope 18 is disposed on the free end side of the roller, the caster rollers 17, 17 are stably mounted and held on the upper surface of the concentrator mounting member 4 after climbing over the guide slope 18. Is done.

After the oxygen concentrator T has been transferred to the concentrator mounting member 4 in this way, the switch 31 is pressed again to set the motor 7 in the reverse rotation mode. When the switch 30 is pressed again,
The concentrator placing member 4 descends and descends to a lowermost position where the concentrator placing member 4 contacts the horizontal member 3.
When the value has reached, the pressing operation of the switch 30 is stopped.

If there is no stair in the direction from this state to the delivery of the oxygen concentrator T, the stair wheel device 21
Without setting, the vertical member 2 of the lift cart 1 is tilted rearward with the wheel 5 as a fulcrum, so that the lift cart 1 is set in a substantially V-shaped state. By pushing or pulling while supporting the grip portion 2A of the second device 2, the oxygen concentrator T, which is a heavy material, can be transported to the target patient's home with a small amount of labor.

When there is a step or a stair in the order of the way to the entrance of the oxygen concentrator T, as shown in FIGS. 5 and 6, the stair wheel device 21 is connected to the back of the vertical member 2 in accordance with the above procedure. Set to the side. At this time, the staircase wheel device 21 can be easily engaged with and integrated with the engagement shaft 22 provided on the vertical member 2 of the lift cart 1 via the latch mechanism 29, and can be detached. It can be easily performed as described above.

When the oxygen concentrator T is transported by the lift cart 1 to which the stair wheel device 21 is attached in this manner, first, the switch 32 is depressed to set the motor 26 to the operating state, and the switch 31 Is set to the cut-off state.

When the user climbs the stairs from this state, the switch 30 is pressed in accordance with the speed at which the user climbs the stairs, whereby the X-arms 23 and 23 rotate. As a result, a lifting force acts on the lift cart 1. Therefore, it is possible to go up the stairs one by one. Of course, when going down the stairs, the switch 32 is set to the reverse operation state and then operated according to the above procedure, so that the stairs can be easily descended one by one.

In the lift cart 1 according to this embodiment, when not in use, it can be folded so as to take up little space even if it is stored in a rear luggage room or a trunk room of the vehicle, and the stairs can be staircased. For example, by configuring the wheel device 21 so that it can be housed on the back surface of the vertical member 2, an effect of saving space can be obtained.

In the above embodiment, the case where the present invention is applied to the lift cart 1 for an oxygen concentrator has been described as an example. However, the present invention is not limited to this, and other weights may be used. Needless to say, the present invention can also be applied to a device for transporting an object.

[0041]

As described above, according to the first aspect of the present invention, the apparatus for transporting a heavy object includes a vertical member formed of an inverted U-shaped frame member and a lower end of the vertical member. A horizontal member rotatably supported on the part, and a side surface shape of which is substantially L-shaped at the time of use, and a vertical member on which a heavy object mounting member for mounting a heavy object is lifted and lowered. The wheel is rotatably arranged so as to be freely and undulatingly movable with respect to the vertical member, and at both lower ends of the vertical member, a ground contact surface is flush with a bottom portion of the horizontal member. When it is configured to support and transport a heavy object placed on the heavy object holding member, the vertical member is configured to be conveyed by pulling it in a slightly inclined rearward direction. A heavy object such as can be easily unloaded from the vehicle to the patient's home. With wear, even stairs or steps, by attaching the rotary wheel only, can be easily transported to overcome this.

According to the second aspect of the present invention, the heavy object placing member is configured to be able to move up and down via a motor and a speed reduction mechanism arranged on the vertical member side. In addition, the lifting of heavy objects can be performed by a machine instead of manually, and this kind of work can be performed easily.

Further, according to the third aspect of the present invention, a substantially mountain-shaped guide slope is provided on the free end side of the heavy object placing member so that the caster of the heavy object can pass over it. Therefore, there is no fear that the heavy object will fall from the heavy object mounting member unnecessarily after the heavy object is placed, which is safe.

According to a fourth aspect of the present invention, a roller rotatably supported at the tip of each of the X-shaped arms at the lower part of the vertical member, and the arms rotatable. The stair wheel device, which is composed of a main body pivotally supported on the stairs, is configured to be detachably mounted, so that even if it is necessary to transport the stairs up the stairs, it can be easily loaded. The work can be performed, and the wheel device for stairs is not normally attached to the transfer device. Therefore, when used in a place without stairs, the weight of the transfer device is not increased. Can be performed easily.

In the invention according to claim 5,
By arranging a motor and a speed reduction mechanism in the main body of the wheel device for stairs, it is possible to raise and lower heavy objects from the stairs only by operating a switch.

Further, according to the invention as set forth in claim 6, the two members arranged on the vertical member are pressed against the main body of the stair wheel device in the horizontal direction while two rollers are in contact with the ground. Since the latch mechanism that meshes with the mating shaft is arranged,
The attaching and detaching work of the harmful device becomes very simple.

Further, in the invention according to claim 7, the motor of the wheel device for stairs is set so as to be operable when the heavy object placing member is lowered to the lowest position. It is secure because it is configured.

Further, in the invention as set forth in claim 8, the stair wheel device is configured to be stowable on the back side of the vertical member, so that there is no space for the stairs, and the interior space of the vehicle is reduced. It can be used effectively.

According to the ninth aspect of the present invention, the vertical member is provided with a holder for holding the horizontal member in the folded state when the horizontal member is folded toward the vertical member. As a result, there is no fear that the closed state will be unintentionally released, and the package will be stable.

According to the tenth aspect of the present invention, when the present invention is applied to a lift cart of an oxygen concentrator having particularly strong demands and demands, its usefulness can be greatly exhibited. And many other excellent effects can be obtained.

[Brief description of the drawings]

FIG. 1 is a right side view of a lift cart for an oxygen concentrator according to an embodiment of the present invention and a side view of a wheel device for stairs.

FIG. 2 is a rear view of the lift cart.

FIG. 3 is an explanatory side view showing a coupling mechanism between the lift cart and a wheel device for stairs.

FIG. 4 is an explanatory plan view of the connection mechanism.

FIG. 5 is a right side view of the lift cart equipped with the stair wheel device.

FIG. 6 is a rear view of the lift cart equipped with the staircase wheel device.

[Explanation of symbols]

 T Oxygen concentrator (heavy material) 1 Lift cart (transportation device) 2 Vertical member 3 Horizontal member 4 Concentrator mounting member (heavy material mounting member) 5 Wheels 7, 26 Motor 8, 27 Reduction mechanism 17 Caster roller 18 Guide Slope 21 Wheel device for stairs 22 Engagement shaft 23 X arm 25 Wheel roller 28 Main body 29 Latch mechanism 30, 31, 32 Switch

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shietsuyoshi Iwasa 1-6-4 Osaki, Shinagawa-ku, Tokyo FSC within FSC (reference) 3F333 AA03 AB07 AE38 BA03 BD05 CA02 CA11 DA03 DB04

Claims (10)

[Claims] 1. A vertical member formed of an inverted U-shaped frame member, and a horizontal member rotatably supported at the lower end of the vertical member have a substantially L-shaped side surface when used. The vertical member is provided with a heavy object placing member for placing a heavy object on the vertical member so as to be able to move up and down and up and down with respect to the vertical member. In
The wheel is rotatably supported so that the ground contact surface is flush with the bottom surface of the horizontal member, and when transporting a heavy object mounted on the heavy object holding member, the vertical member is used. An apparatus for transporting heavy objects, wherein the apparatus is configured to be transported while being pulled slightly backward. 2. The heavy object transport device according to claim 1, wherein the heavy object placing member is vertically movable via a motor and a speed reduction mechanism disposed on the vertical member side. 3. A free end side of the heavy object placing member,
3. The heavy object conveying device according to claim 1, further comprising a substantially mountain-shaped guide slope that can be passed by a heavy object caster. 4. A lower part of the vertical member includes a roller rotatably supported at each end of an X-shaped arm and a main body rotatably supporting the arm. 4. The apparatus for transporting heavy goods according to claim 1, wherein the wheel device for stairs is detachably mountable. 5. The apparatus according to claim 4, wherein a motor and a speed reduction mechanism are disposed in a main body of the stair wheel device. 6. A main body of the wheel device for stairs is provided with a latch mechanism which engages with an engagement shaft provided on the vertical member by pressing two rollers in a horizontal direction in a state where two rollers are in contact with the ground. 6. The method according to claim 4, wherein
The transport device for heavy objects according to any one of the above. 7. The motor of the wheel device for stairs is set to be operable when the heavy object placing member is lowered to a lowermost position.
The transport device for heavy objects according to any one of the above. 8. The apparatus for transporting heavy goods according to claim 4, wherein the wheel device for stairs can be stored on the rear side of the vertical member. 9. The vertical member is provided with a holder for holding the horizontal member in the folded state when the horizontal member is folded toward the vertical member.
9. The apparatus for conveying a heavy object according to claim 8. 10. The apparatus according to claim 1, wherein the heavy object is an oxygen concentrator.