JPH10167688A - Mutual suspension type conveying truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make any movement in the optical direction achievable without adding a sharp improvement to a conveying truck by making it consist of a self-propelled lift truck equipped with a fork system and a self-propelled cargo-carrying truck forming an opening part, for receiving this lift truck, in a body central part, and making both of them suspendible with each other. SOLUTION: A lift truck 20 consists of both symmetrical mast frames 21 and a body frame by means of base frame, and it is equipped with two L-shaped forks 23 free of lifting motion along the mast frame 21. In addition, this lift truck 20 is equipped with a self-propelling drive motor in the A-A direction. A self-propelling cargo-carrying truck 10 is of four-wheel type, which is travelable in the B-B direction by the drive motor. Conveyance in the specified story for materials and so on is suspendibly carried out by a suspension mechanism 30 of the self-propelling cargo-carrying truck 10 after the lift truck 20 loaded in the opening part of this truck 10 enters thereinto. In addition, a movement into different stories is carried out in a state that the self-propelling cargo- carrying truck 10 is uplifted by the forks 23 of the lift truck 20. With this constitution, the self-propelling cargo-carrying truck 10 becomes travelable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled unloading device equipped with a fork and mounted on a high-speed lift, and a material arranged at a desired level on a construction site of a building or the like having a limited space. The present invention relates to an inter-suspended transport vehicle that travels in a desired direction by suspending self-propelled transport vehicles that horizontally transport loads on each floor.

[0002]

2. Description of the Related Art Conventionally, in construction sites such as high-rise buildings,
When the work on how to build the skeletal structure is nearing completion, interior construction work and installation work of equipment will be started on each floor, but materials used for these works will generally be brought in temporarily on temporary elevator shaft temporary equipment. A high-speed lift equipped with a fork is used, and materials are loaded on a self-propelled unloading device equipped with a fork mounted on the box part of this high-speed lift, and vertical movement to each floor is performed . Then, the horizontal movement of these materials and the like on each floor is performed by a loading / unloading device loaded with loads of the materials and the like from the box portion on a fork, which moves forward to a predetermined unloading position, and then lowers the fork. Unloading is performed on the floor surface, the self-propelled luggage truck travels to the predetermined unloading position, and the self-propelled luggage truck lifts the load with a fork and then self-propelled to the target position. It is done by that.

[0003] By the way, when construction on a predetermined level of a high-rise building is completed, these self-propelled carts are transported for transporting materials and the like on different stories, but the self-propelled carts themselves are not transported. Since the steering mechanism is not provided, the traveling is restricted to only a certain direction.Therefore, the movement assisting device such as a dedicated caster can be mounted on the self-propelled carrier itself, or the self-propelled carrier using a hand lifter. The movement is performed using a high-speed lift through a manual operation such as moving a car.

[0004]

As a result, it is inefficient and time-consuming because the work is performed manually, and depending on the progress of the work, it may affect other construction processes. Can also occur,
There has been a demand for an improved self-propelled carrier that enables efficient movement.

[0005] In view of such a background, the self-propelled luggage carrier of the reciprocally transportable carrier for horizontally transporting materials and the like at a predetermined level of a construction site such as a high-rise building in view of such a background. When moving to a different level, a self-propelled luggage carrier and a lift truck can be suspended from each other without the need for moving aids such as dedicated casters and auxiliary equipment such as hand lifters. This is a mutual suspension type transport vehicle that enables traveling in a desired direction while maintaining the suspended state by adjusting the extension and contraction of the suspension rod, and moves in any direction without significantly improving the conventional transport vehicle. Enable,
It is an object of the present invention to provide a mutually suspended transport vehicle.

[0006]

According to the present invention, a self-propelled lift vehicle equipped with a fork and the self-propelled lift vehicle enter a central portion of the vehicle body. A self-propelled luggage carrier having an opening for forming a reciprocally suspended carrier, wherein the inner wall surface of the opening of the self-propelled luggage carrier is used to suspend the self-propelled lift truck that has entered. A self-propelled lift vehicle, wherein the self-propelled lift vehicle is suspended by the self-propelled lift vehicle while maintaining a suspended state of the self-propelled lift vehicle. By adjusting the rod, it has a function of suspending the self-propelled carrier and a self-propelled mechanism for integrally traveling while maintaining the suspended state of the self-propelled carrier. That is.

[0007] The suspension device comprises a suspension rod disposed inside an opening formed in the self-propelled carriage, and when the suspension rod is extended, the height position of the fork of the self-propelled lift vehicle is set. By performing the above adjustment, the suspension mechanism can be freely suspended.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an inter-suspended transport vehicle according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view showing an embodiment of an inter-suspended transport vehicle according to the present invention.
1 shows a state in which a lift truck 20 has entered the opening of the self-propelled luggage carrier 10, FIG. 2 is a front view taken along the line YY of FIG. 1, and FIG. 3 is a side view of FIG. FIG. The arrow shown in the AA direction in FIG. 1 indicates the traveling direction of the lift truck 20, and the arrow shown in the BB direction indicates the traveling direction of the self-propelled luggage vehicle 10. As shown in FIG.
Is configured so as to be orthogonal to the traveling direction (AA direction) of the lift vehicle 20.

FIG. 4 shows a side view of the lift truck 20 and FIG.
4 shows a plan view of FIG. 4, and FIG. 6 shows a front view,
The lift vehicle 20 includes a left and right mast frame 21 and a body frame including a base frame 22 extending below and behind the mast frame 21. A fork 23 having an L-shaped side surface is provided on the body frame along the left and right mast frames 21. 4 can be freely moved up and down in the C-C direction of FIG.
The lifting / lowering operation mechanism of the fork 23 is operated by a hydraulic operation cylinder 24. 4 to 6
Reference numeral 25 denotes a drive motor for self-running of the lift vehicle, reference numeral 26 denotes a drive chain for transmitting power from the drive motor 25 to the rear wheels 28, and reference numeral 27 denotes a front wheel. Each is shown.

FIG. 7 is a front view of the self-propelled luggage carrier 10 in a state where the lift truck 20 is separated, and FIG. 8 is a plan view of FIG. In the figure, arrows indicated by BB indicate the traveling direction of the self-propelled luggage carrier 10, and the self-propelled luggage carrier 10 is of a four-wheel type, and each wheel 11
Is able to freely travel in the BB direction by driving a travel drive motor (not shown).

The transportation of materials and the like at a predetermined level by the self-propelled luggage carrier 10 having such a configuration will be described briefly. FIG.
10 is a plan view showing a state in which the lift truck 20 has entered the opening of the vehicle, and the lift truck 20 is suspended by the suspension mechanism 30 of the self-propelled luggage carrier 10. FIG. 10 is a line XX in FIG. It is a side view of a viewing direction. As shown in FIG. 9, the lift truck 20 enters the opening of the self-propelled luggage carrier 10, and the lift truck 20
Is suspended by the suspension mechanism 30 of the self-propelled carrier 10. The suspension mechanism 30 is a suspension rod 3 that can be freely extended and retracted.
And the suspension rod 31 is attached to the self-propelled
The lift truck 20 is suspended from the self-propelled luggage carrier 10 by extending inward of the opening 0 and entering the bottom surface of the fork 23 of the lift truck 20. Therefore, in such a suspended state, the front wheels 27 and the rear wheels 28 of the lift vehicle 20 are in a state of being lifted from the traveling road surface as shown in FIG.

FIG. 11 is a plan view exemplifying the standby position and the loading position of the self-propelled luggage carrier 10 at a predetermined level. At the position, the apparatus waits for the arrival of a load M such as material transferred to the floor by the automatic unloading device of the high-speed lift LF. When the load M arrives and is unloaded on the floor, and the automatic unloading device finishes retreating to the high-speed lift LF, the self-propelled movement from the standby position to the loading position in the direction indicated by the arrow D is performed. The loading operation of the material M, such as the material unloaded in front of the high-speed lift LF, on the self-propelled carrier 10 is started.

The loading operation on the self-propelled luggage carrier 10 will be described. The self-propelled luggage carrier 10 with the lift truck 20 shown in FIG. 10 in a suspended state first arrives at the loading position shown in FIG. The fork 23 of the lift truck 20 in the suspended state is raised by the operation of the operation cylinder 24. Due to this rise, the suspension rod 31 which has entered the bottom surface of the fork 23 and intended to maintain the suspended state is opened, and the extended suspension rod 3 has been extended.
1 is retracted so that the lift truck 20 can be separated from the self-propelled luggage carrier 10. At the same time as the suspension rod 31 contracts, the operation cylinder 24 of the fork 23 is reactivated to lower the fork 23, and the self-propelled carrier 10
Lift truck 20 suspended in the opening of the vehicle is landed,
It is in a state of being separated from the self-propelled luggage carrier 10.

The lift truck 2 in the separated state
0 is operated to load the load M on the fork 23. FIG.
2 is a side view of the lift truck 20 in a state where the load M is loaded on the fork 23 of the lift truck 20. Then lift car 2
When the loading of the load M to 0 is completed, the lift truck 20 is retracted in the direction of the self-propelled carrier 10 and guided to the opening of the self-propelled carrier 10 as shown in FIG. like,
The lift truck 20 is advanced to the end of the opening of the self-propelled luggage carrier 10, the fork 23 is lowered, the suspension rod 31 of the suspension mechanism 30 of the lift truck 20 is extended, and the lift truck 20 is again moved to its own position. By maintaining the state in the traveling luggage carrier 10, the self-propelled luggage carrier 10 of the load M such as materials is provided.
Loading work to the is completed. At this time, the state where the lift truck 20 is completely suspended on the self-propelled luggage carrier 10 is maintained.
As shown in FIG. 5, after the self-propelled luggage carrier 10 transports the load M such as materials to a predetermined location, the operation opposite to the above-described process is performed.
The transfer of the load M is terminated.

As described above, the transport of the load M such as materials is performed at a predetermined level. When the construction at the predetermined level is completed, the mutually suspended transport vehicle 1 moves to a different level. The movement of the mutually suspended transport vehicle 1 will be briefly described.

First, the fork 23 of the lift truck 20 is lowered from the mounting position of the suspension rod 31 to a lower position with the operation of the operation cylinder 24, and the suspension rod 31 of the suspension mechanism 30 is extended by the operation of the operation cylinder 32. Let it. After the extension of the suspension rod 31, the fork 2
The fork 23 is raised by operating the third operation cylinder 24 again. As the fork 23 rises, the suspension rod 31 is pushed up. As a result, as shown in FIGS. 16 and 17, the self-propelled luggage carrier 10 keeps being lifted by the lift truck 20.

In this state, the self-propelled carrier 10 can travel in a desired direction.

[0019]

According to the mutual suspension type carrier of the present invention described above, the following effects can be obtained. When moving a self-propelled luggage carrier of an inter-suspended transport vehicle that transports materials etc. in a horizontal direction at a predetermined level of a construction site such as a high-rise building to a different level, a moving aid such as a dedicated caster or hand lifter It does not require auxiliary equipment, etc., so that the self-propelled carrier and lift truck can be suspended mutually by switching the suspension as necessary, so that it is possible to travel in the desired direction while maintaining the suspended state Become. In addition, since it is possible to move in any direction without making significant improvements to the conventional transport cart, it is possible to establish an efficient transport system at construction sites such as high-rise buildings for loading materials etc. Become.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an inter-suspended transport vehicle according to the present invention.

FIG. 2 is a front view taken along line YY of FIG. 1;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a side view of the lift vehicle.

FIG. 5 is a plan view of FIG. 4;

FIG. 6 is a front view of FIG. 4;

FIG. 7 is a front view of the self-propelled luggage carrier with the lift truck separated.

FIG. 8 is a plan view of FIG. 7;

FIG. 9 is a plan view showing a state where a lift truck is suspended at an opening of the self-propelled luggage carrier.

FIG. 10 is a side view in the direction of arrows XX in FIG. 9;

FIG. 11 is a plan view illustrating a standby position and a loading position in a predetermined hierarchy.

FIG. 12 is a side view of the inter-suspension carrier with a load loaded on a fork.

FIG. 13 is an explanatory view of a state in which the lift truck is retracted in the direction of the self-propelled luggage carrier.

FIG. 14 is an explanatory diagram of a state where the lift truck has entered the rearmost portion of the opening of the self-propelled luggage carrier.

FIG. 15 is an explanatory diagram of a state in which the self-propelled luggage carrier conveys loads such as materials to a predetermined location.

FIG. 16 is a plan view illustrating a state in which the self-propelled luggage carrier is lifted by a lift truck.

FIG. 17 is a side view of FIG. 16;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mutually suspended conveyance trolley 10 Self-propelled trolley 11 Wheel 20 Lift car 21 Mast frame 22 Base frame 23 Fork 24 Operation cylinder 25 Travel drive motor 26 Drive chain 27 Front wheel 28 Rear wheel 30 Suspension mechanism 31 Suspension rod 32 Operation cylinder LF High-speed lift M load (materials, etc.)

Claims (2)

[Claims] A self-propelled lift truck equipped with a fork and a self-propelled luggage truck having an opening in the center of the vehicle body for the self-propelled lift truck to enter. In the inside wall surface of the opening of the self-propelled luggage vehicle, while providing a suspension mechanism for suspending the self-propelled lift vehicle entering, while maintaining the suspended state of the suspended self-propelled lift vehicle And a self-propelled mechanism that travels integrally, wherein the suspension mechanism has a function that the self-propelled lift vehicle suspends the self-propelled carrier by adjusting the extension and contraction of a suspension rod of the suspension mechanism. And a self-propelled carrier having a self-propelled mechanism for integrally traveling while maintaining a suspended state of the self-propelled carrier. 2. The suspension mechanism comprises a suspension rod disposed inside an opening formed in the self-propelled transport vehicle, and when the suspension rod is extended, the suspension mechanism is positioned at a height of a fork of a lift truck. 2. The mutually suspended transport vehicle according to claim 1, wherein a mechanism that allows the suspension to be freely performed by performing adjustment is provided.