JPH1160163A - Hoist - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hoist which can lift a heavy object safely and easily. SOLUTION: In a hoist provided with a base plate 2, a front frame 4 attached to a front end part of the base plate 2 in the vertical direction, a support pole 5 attached to the front frame 4 around its shaft in such a way that it can turn, a hoisting pole 7 attached to an upper end part of the support pole 5 in the horizontal direction, and a load lifter 9 for lifting up and down a cargo 8, a plurality of water tanks 10 which enable pouring and drain of water are put on the base plate 2 as counterbalance of the hoist.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hoist for unloading and unloading high-rise buildings such as buildings and condominiums.

[0002]

2. Description of the Related Art Conventionally, when unloading or unloading high-rise buildings such as buildings and condominiums by moving or the like,
It is practiced to use a dedicated crane truck or to temporarily install a hoist on the rooftop or veranda of a building.

[0003]

However, in the case of a dedicated mobile crane, a space for parking the mobile crane adjacent to a target building is required.
It cannot be used if there is no parking space.
In addition, even if there is a parking space, it is necessary to park a vehicle for carrying luggage in addition to the crane truck, which may hinder traffic.

When a hoist is used on the roof of a high-rise building or on a veranda, not only is it time-consuming to load and unload the hoist. In order to prevent the hoist from falling over, hoist fixing means for fixing the hoist to anchor bolts or anchor rings buried on the roof is necessary. Can't lift.

Further, when a hoist is temporarily installed on a veranda, the hoist is fixed to a handrail of the veranda.
In this case, the handrail may be damaged or deformed. Also, handrails are not designed to withstand excessive loads, which poses safety issues.

Accordingly, the present invention is to provide a hoist having a simple structure capable of safely and easily lifting a heavy object.

[0007]

SUMMARY OF THE INVENTION A hoist according to the present invention is provided with a base plate, a front frame vertically mounted on a front end of the base plate, and a rotatable shaft mounted on the front frame. Injecting water onto the base plate in a hoist having a support pole, a lifting arm horizontally supported by a fixed arm at an upper end of the support pole, and a hoist for unloading or unloading cargo. And a plurality of water tanks capable of draining are mounted as a counter balance of the hoist.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The hoist of the present invention may be constructed so that a base plate, a front frame, a support pole, a lifting arm, and a lift can be assembled and disassembled.

The base plate may be connectable to an auxiliary base plate on which a plurality of water tanks can be placed.

[0010]

1 is an overall view showing a mode of use of a hoist according to the present invention, and FIG. 2 is a front view of the hoist shown in FIG.

The hoist of this embodiment includes a base plate 2 provided with wheels 1 and a front frame 4 attached to a front end of the base plate 2 by a fixed arm 3 in a vertical direction. The base plate 2, the fixed arm 3, and the front frame 4 can be assembled and disassembled on site. The wheels 1 of the base plate 2 do not need to be provided when they are installed in a place where movement is not required, such as a veranda of a building.

A support pole 5 that is rotatable around an axis is attached to the front frame 4, and a lifting arm 7 is horizontally supported on a top end of the support pole 5 by a fixed arm 6. The support pole 5 can be made rotatable by being mounted on a bearing provided on the base plate 2.
Further, the fixed arm 6 and the lifting arm 7 can be assembled and disassembled.

The front frame 4 is provided with a lifting machine 9 for winding or rewinding the hoist cable 9a in order to unload or unload the load 8.

In FIG. 1, reference symbol A indicates a rooftop or a floor of a veranda, and reference symbol B indicates a handrail.

A number of water tanks 10 such as plastic tanks corresponding to the weight of the load 8 to be handled are loaded on the base plate 2. The water tank 10 is a cube or a rectangular parallelepiped, and has a capacity of, for example, 40 liters. Each water tank 10 has a water inlet 10a and a drain 10b.
Is provided. The plurality of water tanks 10 are housed in a rack 11 placed on the base plate 2. Alternatively, a plurality of water tanks 10 may be stacked on the base plate 2 and fixed directly to the base plate 2 with a band-shaped member such as metal.

Next, a procedure for using the above-described hoist will be described.

First, each member of the hoist and a plurality of water tanks 10 in a disassembled state are carried to a target location.

Next, the front frame 4 is vertically attached to the front end of the base plate 2 by the fixing arm 3, and the support pole 5 and the unloader 9 are attached to the front frame 4 and fixed to the upper end of the support pole 5. Arm 6 lifted by arm 6
Is supported in the horizontal direction.

Next, a number of water tanks 10 corresponding to the weight of the load 8 to be unloaded or unloaded are loaded on the rack 11 placed on the base plate 2 or directly placed on the base plate 2 to form the band-shaped member 1.
Fix with 1.

Next, the water inlet 10a of the water tank 10 is opened, and water is injected into the water tank 10 with a hose or the like. By injecting water into all the water tanks 10, a sufficient load is applied to the base plate 2 and acts as a counterbalance of the hoist. Thereby, unloading and unloading of the heavy load 8 can be performed without fixing the hoist to the handrail or the anchor.

At the time of unloading, the support pole 5 is rotated so that the lifting arm 7 projects outside the handrail B,
The hoist cable 9a is paid out from the unloader 9, and the tip of the hoist cable 9a is connected to the load 8 placed on the ground. Then, by operating the unloader 9, the hoist cable 9a is wound up and the load 8 is lifted.

When the load 8 comes to a position above the handrail B, the loader 9 is stopped, and the support pole 5 is rotated so that the lifting arm 7 protrudes inward from the handrail B. Then, the luggage 8 is unloaded to the floor A.

In the case of unloading, the reverse operation is performed in the case of unloading.

After the operation is completed, the water in the water tank 10 is discharged. In addition, it is disassembled into each member of the hoist and carried out of the building. Since the water tank and the disassembled members are small, they can be easily carried out using an elevator or stairs.

FIG. 3 is a plan view showing an example of increasing the number of water tanks.

If the weight of the cargo to be unloaded or unloaded is large and the water tank 10 placed on the base plate 2 alone is not sufficient for the counter balance of the hoist, the auxiliary base plate 2a is connected to the base plate 2 by means of bolts and nuts. It is connected by the tool 12, the water tank 10 is further placed on the auxiliary base plate 2a, water is injected, and the weight of the counter balance can be increased.

[0027]

The present invention has the following functions and effects.

(1) Since a plurality of water tanks each capable of injecting and draining water are used as a counterbalance of the hoist, unloading or unloading of heavy objects can be performed safely and easily without connecting the hoist to a handrail or an anchor. it can.

(2) In the hoist of the present invention, the base plate, the fixed arm, the front frame, the support pole, the fixed arm, and the lifting arm can be disassembled, so that loading and unloading can be easily performed, and the structure is simple. Can be assembled and disassembled.

(3) Since the auxiliary base plate on which the water tank is mounted can be connected to the base plate, the weight of the counter balance can be increased, and a heavier load can be unloaded or unloaded.

[Brief description of the drawings]

FIG. 1 is an overall view showing a use mode of a hoist of the present invention.

FIG. 2 is a front view of the hoist shown in FIG.

FIG. 3 is a plan view showing an example of increasing the number of water tanks.

[Explanation of symbols]

 Reference Signs List A floor part B handrail 1 wheel 2 base plate 2a auxiliary base plate 3 fixed arm 4 front frame 5 support pole 6 fixed arm 7 lifting arm 8 baggage 9 unloader 10 water tank 10a water inlet 10b drain port 11 band member 12 coupler

Claims (3)

[Claims] 1. A base plate, a front frame vertically attached to a front end of the base plate, and a support pole mounted to be rotatable around an axis with respect to the front frame.
In a hoist provided with a lifting arm horizontally supported by a fixed arm at the upper end of the support pole and a loader for discharging or unloading a load,
A hoist characterized in that a plurality of water tanks capable of injecting and draining water are respectively mounted on the base plate as a counter balance of the hoist. 2. The hoist according to claim 1, wherein the base plate, the front frame, the support pole, the lifting arm, and the unloader can be assembled and disassembled. 3. The hoist according to claim 1, wherein the base plate is connectable to an auxiliary base plate on which a plurality of water tanks can be placed.