JPS61237764A - Lift for building site and material feed equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lift used for transporting materials at a construction site, and to material transport equipment having the lift as a main part.

[Conventional technology]

At construction sites, lifts are used as a means of transporting materials in the vertical direction. Conventionally, in order to shorten the time and labor required for loading materials into a truck or removing materials from a lift, there are methods such as containerizing materials, using machines such as forklifts, etc. It is taken.

[Problem that the invention seeks to solve]

However, in the above case, ■ there is no standard container, ■
There are problems such as: There are many materials that cannot be made into containers, ■ Empty containers take up space, ■ Even if a forklift is used for loading, it cannot be used for removal, and ■ Forklifts are left idle while waiting for the lift. It is not very popular in Japan.

In view of the above circumstances, it is an object of the present invention to provide a lift for a construction site and material transport equipment that allows loading and unloading of materials to be carried out easily and in a short time.

[Means for solving problems]

The lift of the present invention is provided with a roller conveyor installed on the upper surface of the loading platform with the conveyance direction facing the material loading/unloading exit, and a roller conveyor installed at the loading/unloading exit of the loading platform. The device is equipped with a fall prevention mechanism that prevents the material from falling and allows the material to be carried in at the carry-in/out port when it is displaced to the other side.

As the fall prevention mechanism, for example, one having a roller whose upper surface substantially matches the height of the conveying surface of the roller conveyor to assist the movement of carrying in the material when it is displaced in the other direction is used.

Further, the material conveyance equipment of the present invention includes the lift as a main part, and further includes a material loading/unloading/exit floor of a predetermined floor where the loading platform of the lift stops, and a conveyance direction of the roller conveyor of the loading platform of the lift is made to coincide with the conveyance direction. It is equipped with a roller conveyor.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a state in which a cargo platform 1 of a lift is stopped at a certain floor. In the figure, F is a floor, and an opening Fa is formed in the floor F, through which the cargo platform 1 of the lift passes.
□ The lift platform 1 moves up and down along rank 2.
It has frames 3 such as handrails on three sides, and the remaining side is open as an entrance 4 for carrying in and out of materials. Three rows of roller conveyors 5 are installed on the upper surface of the loading platform 1 with the conveyance direction facing the loading/unloading port 4 . In addition, a fall prevention mechanism 6 is installed at the material loading/unloading port 4 of the W platform to prevent the materials placed on the roller conveyor 5 from falling from the loading/unloading port 4 while the loading platform 1 is being raised or lowered. Corresponding to the roller conveyor 51C of 3
They are placed side by side.

As shown in FIGS. 1 and 3, the fall prevention mechanism 6 has a bin 7 attached to the loading platform 1 and a long length 8a.
It consists of a frame 8 which is fitted into a bin 7 and supported, and one roller 9 attached to the frame 8.

The bins 7 are provided in pairs on the end surface 1a of the loading platform 1 via brackets 10, and a frame 8 is attached to each bin 7, respectively. The frame 8 is a long plate whose width is smaller than the gap between the end surface 1a of the loading platform 1 and the inner peripheral surface of the opening pa of the floor F, and has a long plate 8a on one end thereof parallel to one side edge 8b. A projecting piece 8C is formed on one edge of the other end, and the shaft end of a roller 9 disposed between the side frames 8, 8 is supported on the projecting piece 8C.

The frame 8 is supported by fitting the elongated hole 8a into the bin 7, with one end side with the elongated hole 8a facing down and the roller 9 facing the loading platform 1 side. This point will be explained in more detail.

The lower end of the frame 8 is a semicircular portion 8d that forms a continuous curved surface with the negative side edge 8b. The semicircular portion 8d and the elongated hole 8a are related to each other such that when the bottle 7 is located at the lower end of the elongated hole 8a, the bottle 7 is located exactly at the center of curvature of the semicircular portion 8d. Further, if the distance from the platform end surface 1a to the center of the bin 7, which is in contact with one side edge 8b of the frame 8, is 81, the distance from the long center line to the one side edge 8b of the frame 8 is t1, and the radius of curvature of the semi-inner part 8d is U. , each dimension is in the relationship S-T-U.

With this configuration, the frame 8 can be slid up and down without wobbling in a standing position with the -side edge 8b substantially in contact with the platform end surface 1a. When the frame 8 is displaced to the lower limit position as shown in FIG. By coming into contact with the frame 8, the frame 8 is held stably, and the rollers 9 project the internal pressure of the material conveyance path to function as a stopper. Therefore, the rollers 9 are arranged at a position such that when the frame 8 is in this position, the rollers 9 are located at least above the height of the conveyance surface of the roller conveyor 5 of the loading platform 1.

Further, when the frame 8 is raised to the upper limit position, the bin 7 is located at the lower end of the elongated part 8a, and the inside half 8d of the frame 80 is in contact with the end surface l& of the loading platform 1. Therefore, at that position, the frame 8 can rotate around the pin 7 as a fulcrum.

FIG. 3 shows a state in which the frame 8 is folded down. When one frame 8 is rotated and laid down in this manner, the leading end of the frame 8 rests on the loading/unloading exit floor F of the stop floor. Then, in the riding state, the height of the rollers 9 matches the height of the rollers of the roller conveyor 50 of the loading platform 1 that has just stopped. Note that at this time, the semicircular portion 8d of the frame 8 is in contact with the end surface 1b of the loading platform 1, so the frame 8 does not wobble.

On the other hand, the loading/unloading exit floor of the stop floor of the loading platform 1 (work floor > F
In K, the roller conveyor 11 is installed so that the conveyance direction coincides with the roller conveyor 5 on the stopped loading platform 1. This roller conveyor 11 is provided with pressure on both sides of the carry-in riverbed F except for the center so as not to interfere with the work. 12 is a plate-shaped pallet that is moved on the roller conveyor 5 or 11; 13 is the roller conveyor 11;
The material is inserted between the rollers of the opening 1i of the floor F.
This is a stopper to prevent it from falling off 'a.

Next, the procedure for actually transporting materials using the above-mentioned lift and material transport equipment will be explained with reference to FIGS. 9 to g. In the diagram, the transport source α floor is Fl, and the transport destination floor is F2.
It is expressed as

As shown in FIG. 1, on the transport source floor, a pallet 12 is placed on the roller conveyor 11 installed on the floor F1, and the material M- is placed on top of the pallet 12 to prepare for transport. This can be done freely for each floor, regardless of the operation of the cargo platform 1 of the lift.

On the other hand, the loading platform 1 of the lift is moved and stopped at the transport source floor F1''L1, and the loading operation is started as shown in FIG.
The frame 8 of is folded down as shown in FIG. Then, the roller 9 of the same mechanism 6 moves to the roller conveyor 5 of the loading platform 1!
: Functions as a transfer roller between the floor Ft and the roller conveyor 11. Then, the pallet 12 carrying the material M is pushed toward the stopped loading platform 1. Due to the action of the roller conveyors 5 and 11, the pallet 12 is easily moved onto the conveyor 5 of the loading platform 1 by a person's slight push, and the loading of materials M onto the loading platform 1 is completed.

When the loading of materials M is completed, the frame 8 of the fall prevention device 6 is erected as shown in FIG. 1 to prevent the materials M on the loading platform 1 from falling from the loading/unloading port 4 of the loading platform 1. (
(See #1@). Then, in this state, as shown in FIG. 6, the loading platform 1 is moved to the destination floor.

When the destination floor is reached, the loading platform L is stopped and the material M is taken out as shown in FIG. At this time, first, the frame 8 of the fall prevention mechanism 6 is brought down as shown in FIG. 3, the rollers 9 are made to function as passing rollers, and in this state, the pallet 12 on the loading platform 1 is pulled out. The pallet 12 is moved to the floor F2 with a light force by the action of the roller conveyors 5 and 11.
The material M is moved onto the upper roller conveyor 11, and the removal of the material M is completed.

After that, the material M taken out is placed on the pallet 12.
Grate K and set pallet 12 aside.

Meanwhile, during this time, the loading platform 1 can be freely used for the next conveyance operation.

Note that the roller conveyors 5 and 11 may be of the type driven by a motor, or equipped with a brake mechanism, or the like. Furthermore, the roller conveyor 11 provided on the floor F of the work floor may be a portable type, and may be provided on the necessary floor only when necessary.

〔Effect of the invention〕

From the above explanation, according to the lift of the present invention, when loading materials onto a loading platform and removing materials from the loading platform, the work can be carried out smoothly with light force due to the action of the roller conveyor. Therefore, improving the efficiency of material transportation work,
Labor saving can be achieved. In addition, materials placed on the roller conveyor may fall from the loading/unloading exit while being lifted or lowered, but since the lift of the present invention has a fall prevention mechanism, it can be lifted and lowered safely.

In addition, if a fall prevention mechanism is used that has rollers to assist in loading and unloading operations, this roller can function as a transfer to the work floor, making the work even smoother. .

Further, according to the material conveyance equipment of the present invention, further K.

It has the following effects.

■ The roller conveyor on the lift's loading platform and the roller conveyor on the work floor form a horizontal conveyance path that connects the loading platform and the working floor, so materials can be moved horizontally with light force.
Materials can be easily loaded and unloaded ■ Materials to be loaded onto the loading platform can be placed on the roller conveyor on the work floor in advance, allowing for loading and unloading work to be carried out in a short time. Moreover.

This work can be done while waiting for the lift,
You can reduce wasted time. In addition, the actual material unloading work can be done by taking the material out onto the roller conveyor on the floor.
Since it can be done freely regardless of the operation of the lift, the time during which the lift is tied up during the - times of transportation work is extremely reduced.

Therefore, the lift can be used effectively.

■ Due to the simple configuration of installing a roller conveyor,
This can be achieved by slightly modifying existing equipment.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 1 is a side view showing details of the main parts of the same embodiment, FIG. 9 to g are side views for explaining the procedure for actually transporting materials using the equipment of the same embodiment. F, Fl, Fg...Floor, Fa...Opening, M...Materials, 1...Loading platform, 4...
... Loading/unloading exit, 5... Roller conveyor, 6
... Fall prevention mechanism, 7 ... Bin, 8.
...Frame, 9...Roller, 11...
...Roller conveyor. Figure 4 Figure 5 Figure 6 Figure 1 Figure 8

Claims (3)

[Claims] (1) A roller conveyor installed on the top surface of the loading platform with the conveyance direction facing the material loading/unloading exit, and a roller conveyor installed at the loading/unloading exit of the loading platform to prevent materials on the roller conveyor from falling from the loading/unloading exit when the roller conveyor is displaced to one side. A lift for a construction site, characterized in that it is equipped with a fall prevention mechanism that prevents the movement of materials at a loading/unloading exit when the lift is displaced in one direction. (2) The fall prevention mechanism has a roller whose upper surface substantially matches the height of the conveyance surface of the roller conveyor when the fall prevention mechanism is displaced to the other side, and which assists in carrying in and out of materials. Construction site lift as described. (3) A first roller conveyor is installed on the top surface of the loading platform of the lift with the conveyance direction facing the material loading/unloading exit, and when the loading platform is displaced in one direction, the material on the first roller conveyor is A fall prevention mechanism is installed that prevents the material from falling from the loading/unloading exit and allows the loading/unloading operation of the material at the loading/unloading exit when it is displaced to the other side. Material conveyance equipment for a construction site, characterized in that a second roller conveyor whose conveyance direction matches that of the first roller conveyor is installed.