JP2002096991A - Elevating device for handling cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevating device for handling cargos having excellent workability in storing, carrying and temporary constructing. SOLUTION: A light suspending member 11 is easily and safely constructed for the time being at a high place by using a structure material 91 of a building. A device main body 30 having an electric motor 50 and the like is positioned on a floor surface, and a wrapping element 22 led from the device main body 30 is locked to the suspending member 11 at a tip end. By driving the electric motor 50, the device main body 30 is raised and lowered with a suspended load 90.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for easy cargo handling and lifting, which is used in, for example, a work site for installing, disassembling, assembling and loading / unloading equipment.

[0002]

2. Description of the Related Art When installing, disassembling, assembling equipment, and loading / unloading equipment, crane equipment having the required functions is installed in a required place in advance or temporarily provided, and a vehicle-mounted crane is prepared in advance. For example, deployment of cargo handling devices is often performed. However, the manner of operation is generally varied, and the use of pre-prepared equipment alone may cause unexpectedly long waiting times or the need for cargo handling equipment in areas beyond the range of movement of the pre-deployed crane equipment. Not a few. In addition, when the suspended load is heavy, it often occurs that it is difficult to move up and down by manual work. In such a case, the purpose is achieved by temporarily installing the chain block.

[0003] However, the chain block has the simplicity that no power is required, but has the disadvantage that the ascending and descending speed is extremely slow and the work is time-consuming. In addition, it is necessary to raise the chain block body to a required height in advance and temporarily install the chain block body. However, the chain block has a considerable weight even in the main body alone, and there is a problem that it is extremely difficult to temporarily install the chain block at a high place, including a long chain, by using only the human hand. Therefore, in order to improve the workability on site, there has been a demand for a lifting device for cargo handling, which can be temporarily and safely provided as appropriate and has an efficient lifting speed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows temporary and appropriate temporary and appropriate temporary construction using beams and other structural materials above the building, and using power. An object of the present invention is to provide a lifting device for cargo handling in which a lifting speed can be appropriately obtained.

[0005]

That is, according to the first aspect of the invention, a suspended load 90 is suspended and raised and lowered, and a lightweight suspension member 11 attached to a structural member 91 of a building, and A wound body 22 such as a wire, a belt, or a rope having an engaging portion 21 at its upper end detachably engaged with the suspension member 11, and a drum 4 around which the wound body 22 is wound.
0, and an apparatus main body 30 provided with an electric motor 50 that rotationally drives the drum 40 via a speed reduction mechanism 60;
A hanging load hook 80 protruding from an outer surface of the device main body 30 and suspending a suspended load 90, wherein the device main body 30 moves up and down together with the suspended load 90.

In the above apparatus, the suspension member 11 may be a sling wire 12 wound around a structural material 91 of a building. Further, it is preferable to wind the slinging wire 12 around the structural material 91 of the building via the cushioning material 13.
Further, in the above device, it is preferable that the device main body 30 is provided with a brake mechanism 70 for preventing the suspended load 90 from falling.
Further, in the above-described apparatus, the wound body 22 is guided by the guide roller 23 provided on the
Can be wound around.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a lifting device for cargo handling according to the present invention. FIG. 1 is an explanatory schematic diagram of the lifting device for cargo handling of the present invention, and FIG. 2 is a schematic diagram showing the internal structure of the device main body 30 of the device. In FIG. 1, a suspension member 11 composed of a sling wire 12 attached to the present apparatus is wound around a beam which is a structural material 91 of a building via a buffer material 13, and a locking ring is formed at the tip of the sling wire 12. ing.

An engaging portion 2 having a locking hook at the upper end
1 is guided from the apparatus main body 30, and the engaging portion 21 is removably locked to the locking ring of the suspension member 11. The winding body 22 is a wire, a belt, a rope,
It is made of a chain or the like, and is wound around a drum 40 provided inside the apparatus main body 30. That is, as shown in FIG. 2, one end thereof is locked by the wire stopper 25 and wound around the drum 40, which is guided upward through the pair of guide rollers 23. The apparatus main body 30 has a reduction mechanism 60 including an electric motor 50 and a gear box connected to a drive shaft thereof, and these are connected to the drum 40. Device body 3
A hanging load hook 80 protrudes from the lower end of the zero. A suspended load 90 is locked to the suspended load hook 80 via the wire 1. The apparatus main body 30 has a power cable (not shown) and a control box via a control cable.

[0009]

How to use As shown in FIG.
Winding through. These suspension members 11 are extremely lightweight and very easy to carry to high places. Next, the engaging portion 21 at the tip of the winding body 22 is locked to the suspension member 11. At this time, the apparatus main body 30 is located on the floor surface, and the wrapping body 22 is sufficiently extended. Next, the electric motor 50 of the apparatus main body 30 is driven, the winding body 22 is wound around the drum 40 by a predetermined length, and the electric motor 50 is stopped. At this time, the apparatus main body 30 is separated from the floor surface as shown in FIG. Therefore, the suspended load 90 can be lifted together with the device main body 30 by locking the suspended load 90 to the suspended load hook 80 at the lower end of the apparatus main body 30 and driving the electric motor 50. In addition, the suspended load 90 can be lowered together with the apparatus main body 30 by reversing the driving motor 50.

Next, FIG. 3 shows another embodiment of the lifting device for cargo handling according to the present invention. In the figure, an apparatus body 30 that moves up and down together with a suspended load (not shown) includes a suspended load hook 80 attached to a lower end, an electric motor 50 that supplies rotational power to the drum 40, and an electric motor 50. It has a reduction mechanism 60 for reducing the rotation speed and transmitting it to the drum 40, and a body frame 31 for mounting and holding these.

The electric motor 50 has a connection flange 52
a, 52b are connected to the worm 61 of the speed reduction mechanism 60. Both ends of the worm 61 are supported by bearings 77 and 78 that endure a thrust load, and mesh with the wheel 62 to form a speed reduction mechanism 60. Further, a driving gear 65 supported by a driving shaft 64 together with the wheel 62 is connected to the drum shaft 41.
The electric motor 50 meshes with the driven gear 66 which is
Is transmitted to the drum 40. According to the device shown in FIG. 3, the suspension position of the device main body 30 is determined by the mounting position of the pulley 23. The suspension position is
In order to stabilize the posture of the suspended load 90, it is preferable that the suspended load 90 is provided on a vertical line passing through the center of gravity of the apparatus main body 30 together with the mounting position of the suspended load hook 80. The device main body 30 is configured symmetrically about the axis of the rotating shaft of the electric motor 50. The center of gravity is on its axis. Therefore, it is possible to provide a lifting device for cargo handling in which the posture of the suspended load is stable.

In FIG. 1, it is assumed that the electric motor 50 rotates the worm 61 in the direction in which the right-hand screw advances. At this time, the worm 61 drives the wheel 62 in the clockwise direction, and sequentially drives the drum 40 in the counterclockwise direction via the driving gear 65 and the driven gear 66. That is, the suspended load 90 descends together with the apparatus main body 30. Electric motor 50
, The suspended load 90 can be raised.
When the apparatus main body 30 is suspended, the electric motor 50
Irrespective of the rotation direction, the gravity acting on the apparatus main body 30 exerts a tension on the wire 22 to rotate the drum 40 in the counterclockwise direction and the wheel 62 in the clockwise direction.

At this time, the wheel 62 is prevented from rotating while exerting a downward force on the worm 61 to be meshed. The axial load received by the worm 61 is supported by the bearing 77, and the worm 61 cannot move downward. That is, the bearing 77 prevents the rotation of the drum 40 and prevents the apparatus main body 30 from lowering. The worm 61 is always supported by the bearing 77 while the electric motor 50
And the lifting and lowering of the suspended load 90 is enabled.

However, the worm 61 includes the electric motor 50.
Even if not driven, a rotational force acts due to an axial load caused by meshing with the wheel 62. Therefore, when the electric motor 50 is turned off, the wheel 62
1 and the suspended load 90 may drop. Whether the worm 61 descends depends not only on the frictional force acting on the worm wheel mechanism, but also on the size of the pitch circle and the screw pitch of the worm 61. The embodiment shown in FIG. 3 is an embodiment in which the vehicle does not descend even if the frictional resistance is not actively applied. With this configuration, it is possible to provide a lifting / lowering device for cargo handling that is lightweight and simple in configuration.

FIG. 4 is an explanatory schematic view showing still another example of the lifting device for cargo handling according to the present invention. One end of the wire 22 guided from the apparatus main body 30 is fixed to the wire stopper 25, the other end is wound around the drum 40, and is wound around a pulley 24 having the locking hook 21 at an intermediate portion. As in the case of FIG. 3, the locking hook 21 is locked to the suspension member 11, the drum 40 is driven to rotate, and the apparatus main body 30 is moved up and down. According to the example shown in FIG. 4, a lifting device having a large suspended load capacity can be provided by the two wires 22. In laying the elevating device, it is necessary to lock the pulley 24 at a high place.

FIG. 5 is an explanatory schematic view showing still another embodiment of the lifting device for cargo handling of the present invention. In this example, the rotating part of the electric motor 50 and the axis of the drum 40 are horizontally arranged. Further, a brake mechanism 70 that brakes a rotating plate 70 a fixed to the rotating shaft of the drum 40 is provided. Various known brake mechanisms can be used to enhance the function of suspending and holding the suspended load 90 at a constant height. Even when the electric motor 50 is powered off, the suspended load 90 can be reliably lowered. Can be prevented.

In general, the apparatus main body 30 having the horizontal axis configuration requires design labor to calculate the position of the center of gravity in the horizontal axis direction. If the calculation is erroneous, it is inevitable that the posture of the apparatus main body 30 is inclined when the suspended load 90 is suspended. These are not immediate dangers, but are undesirable. However, on the other hand, the height of the apparatus main body 30 can be reduced, and the lifting height of the suspended load 90 can be increased.

The exclusive slinging wire 12 and the cushioning material 1
3. Locking hook 21, wire 22, pulley 23 or power cable, operating cable, and hanging load hook 80, etc.
What is located outside the main frame 31 when used as a lifting device for cargo handling can be appropriately stored in the main frame 31 during storage and transport. Also, the main body frame 31
By providing a function to store these as appropriate,
No special space or unnecessary management is required for transportation, and handling is easy. Further, wheels may be provided at the lower end of the apparatus main body 30 to be used for transportation.

[0019]

As described above, in the lifting device for cargo handling according to the present invention, the suspension member 1 such as a lightweight sling wire is used.
The temporary installation of the device can be completed only by locking the device 1 at a high place. That is, the towing operation can be performed while the apparatus main body 30 including the drum 40, the electric motor 50, the speed reduction mechanism 60, and the like is positioned on the floor surface. And building structural material 91
The cargo handling lifting device can be freely and easily laid at a required place by using the device.

Further, when the drive mechanism of the drum 40 is provided with the brake mechanism 70, even in the case of the deceleration mechanism 60 having a poor brake function, there is a possibility that the electric motor 50 may stop when the electric motor 50 is stopped, such as holding the suspended load 90. It is possible to provide a lifting device for cargo handling that can surely prevent the falling phenomenon.

[Brief description of the drawings]

FIG. 1 is an explanatory schematic view of an example of a lifting device for cargo handling according to the present invention.

FIG. 2 is a schematic view of an internal mechanism of the lifting device for cargo handling according to the present invention.

FIG. 3 is an explanatory view showing another example of the lifting device for cargo handling of the present invention.

FIG. 4 is an explanatory schematic view showing still another example of the lifting device for cargo handling of the present invention.

FIG. 5 is an explanatory view for explaining the operation of the lifting device for cargo handling in which the rotation mechanism of the present invention is configured on the horizontal axis.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wire 11 Suspension member 12 Sling wire 13 Buffer material 21 Engagement part (locking hook) 22 Wound body (wire) 23 Guide roller (pulley) 24 Pulley 25 Wire stop 30 Device main body 31 Main body frame 40 Drum 41 Drum shaft 50 Electric motor 52a Connection flange 52b Connection flange 60 Reduction mechanism 61 Worm 62 Wheel 64 Drive shaft 65 Drive gear 66 Follower gear 67a Reduction gear 67b Reduction gear 67c Reduction gear 67d Reduction gear 70 Brake mechanism 70a Rotating plate 77 Bearing 78 Bearing 80 Hanging load hook 90 Suspended load 91 Structural material

Claims (5)

[Claims] A lightweight suspension member (11) for suspending and lifting a suspended load (90), wherein the suspension member (11) is attached to a structural member (91) of a building.
And a wrapping body 22 such as a wire, a belt, or a rope having an engagement portion 21 at its upper end which is detachably engaged with the suspension member 11.
An apparatus main body 30 having a drum 40 for winding the wrapping body 22 and an electric motor 50 for rotating and driving the drum 40 via a speed reduction mechanism 60, and protruding from an outer surface of the apparatus main body 30. And a hanging load hook 80 for suspending the hanging load 90, wherein the apparatus main body 30 moves up and down together with the hanging load 90. 2. The lifting device for cargo handling according to claim 1, wherein the suspension member 11 is a slinging wire 12 wound around a structural material 91 of a building. 3. The lifting device for cargo handling according to claim 2, wherein the slinging wire 12 is wound around the structural material 91 of the building via the cushioning material 13. 4. The lifting device for cargo handling according to claim 1, further comprising a brake mechanism on the device main body to prevent the suspended load from falling. 5. The lifting device for loading and unloading, wherein the winding body 22 is wound around the drum 40 by being guided by the guide roller 23 provided in the apparatus main body 30 in claim 1.