JP2001130889A - Loading device for fork lift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loading device for a fork lift capable of preventing generation of a luggage collapse without generating instability of a loading state, even if each luggage has an outward swollen shape. SOLUTION: This loading device 1 for fork lift is constituted by disposing three or more forks 3a, 3b for altogether and directly supporting a plurality of luggage 4 loaded in parallel and by multi-stages on each load receiving surface in parallel after the forks 3a, 3b are separated. The device 1 is characterized by providing each load receiving surface of the fork 3a disposed at an outside position of a parallel direction at an upper side position of the load receiving surface of the fork 3b disposed at an inside position of the parallel direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling device for a forklift, and more particularly, to a relative positional relationship between fork receiving surfaces of forks.

[0002]

2. Description of the Related Art In recent years, when transporting luggage, for example, luggage such as cardboard boxes packed with vegetables and the like, the purpose of the present invention is to eliminate the needless distribution of pallets for transportation, and to arrange them in parallel and in multiple stages. Using a cargo handling device in which three or more forks for directly receiving and supporting a plurality of boxed packages loaded in a box on their respective receiving surfaces directly and separated from each other are arranged in parallel. Is performed, and there is a configuration as shown in a perspective view of FIG. That is, six forks 12 called lift brackets 11 are attached to the backrest 1.
3 and are arranged in parallel. The receiving surfaces of the forks 12 form a horizontal plane along the direction in which the forks 12 are arranged in parallel. On the receiving surface of the forks 12, the packaged baggage 14 becomes horizontal and is stacked in parallel and in multiple stages. It will be transported without using a transport pallet.

[0003]

However, in the conventional cargo handling apparatus, the following inconvenience has occurred. In other words, in the baggage 14 in which vegetables and the like are packed in a cardboard box, it is inevitable that each side of the cardboard box having a cubic shape expands outward. On the other hand, when a plurality of packages 14 having an outwardly swelling shape are directly and directly loaded in a lump, it is generally the loading state as shown in the front view of FIG. It is. And, in such a loaded state, among the packages 14 stacked in parallel and in multiple stages, those located on the upper side and the outer side are inclined outward, which results in an unstable loading state. However, there is a risk that the cargo may collapse.

[0004] The present invention has been made in view of such inconvenience, and even if each piece of luggage has a shape bulging outward, the loading state does not become unstable, and the load collapses. It is an object of the present invention to provide a forklift loading and unloading device capable of preventing the occurrence of cracks.

[0005]

According to a first aspect of the present invention, there is provided a forklift loading / unloading apparatus for directly supporting a plurality of loads stacked in parallel and in multiple stages directly on respective receiving surfaces. The above forks are arranged in parallel after being separated from each other, and the receiving surface of each of the forks arranged at the outer position in the parallel direction is higher than the receiving surface of the fork arranged at the inner position in the parallel direction. Is also provided at the upper position.

According to a second aspect of the present invention, there is provided a cargo handling apparatus for a forklift according to the first aspect, wherein the receiving surfaces of the forks each have a direction substantially coincident with a single arc assumed in the parallel direction. It is characterized by being.

According to a third aspect of the present invention, there is provided a cargo handling apparatus for a forklift according to the first aspect, wherein each fork receiving surface disposed at an outer position in the parallel direction is disposed at an inner position in the parallel direction. It is provided in a direction inclined toward the receiving surface of the fork.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a forklift cargo handling device according to the first embodiment, and FIG. 2 is a first embodiment.
FIG. 3 is a front view showing the relative positional relationship between the respective receiving surfaces of the forks of the cargo handling device according to the first embodiment, and FIG.
FIG. 4 is a front view showing the relative positional relationship between the respective receiving surfaces of the forks of the cargo handling device according to the first embodiment, and FIG. 4 is a front view showing the relative positional relationship between the respective receiving surfaces of the respective forks of the loading device according to the third embodiment. It is. In these figures, reference numeral 1 denotes a cargo handling device called a lift bracket, 3a,
Reference numeral 3b denotes a fork, and each of the front views shown in FIGS. 2 to 4 shows a state in which loads are stacked in parallel and in multiple stages on a receiving surface of forks arranged in parallel.

The forklift loading and unloading device according to the first embodiment is used by being mounted on a vehicle body of a forklift used for transporting various kinds of luggage. As shown in FIG. 1) moves up and down along a mast (not shown) erected at the front of the vehicle body, extends horizontally with the backrest 2, and is arranged in parallel at a distance from each other. 6 forks 3
a and 3b. Each of the forks 3a and 3b directly and directly receives and supports a plurality of boxed packages 4 stacked in parallel and in multiple stages on respective receiving surfaces (upper surfaces in the figure). Of the forks 3a and 3b, the receiving surfaces of the two forks 3a arranged at the outer positions in the parallel direction are respectively different from those of the two forks 3b arranged at the inner position in the parallel direction. The fork 3b is provided at a position above the receiving surface, specifically, an upper position that is higher by a distance x and y than the receiving surface of the fork 3b.

Therefore, when a plurality of packages 4 packed with articles such as vegetables are stacked on the load receiving surfaces of the forks 3a and 3b arranged in parallel and in multiple stages, these packages 4 In spite of the fact that each of them has a shape bulging outward, the load 4 loaded on the load receiving surface of the fork 3a located at the outer position in the parallel direction is located at the inner position in the parallel direction. Is located above the load 4 loaded on the load receiving surface of the fork 3b, and each of the loads 4 loaded at the outer position is inclined inward. In other words, when the configuration according to the first embodiment is adopted, those located above and outside of the loaded luggage 4 are inclined more inward, which is the loading center of the entire luggage 4, and As a result, they are inclined inward and support each other, so that the loaded state of the load 4 is stabilized, and the risk of collapse of the load is avoided.

In the first embodiment, the two forks 3a are arranged at the outer positions in the parallel direction.
Although the respective receiving surfaces are provided above the respective receiving surfaces of the two forks 3b disposed at the inner positions thereof, the present invention is not limited to such a configuration. For example, FIG. It is also possible to employ a cargo handling device having a configuration according to the second embodiment shown in the drawings or a configuration according to the third embodiment shown in a front view in FIG.

That is, as shown in FIG. 3, the lift bracket 1 according to the second embodiment has two forks 3a, 3b arranged in parallel, which are arranged at outer positions in the parallel direction. Not only is the loading surface of each of the forks 3a provided above the loading surface of the two forks 3b arranged at the inner position in the parallel direction, but also the loading surface of each of these forks 3a and 3b is This is a direction substantially matching a single arc A assumed along the parallel direction.

As shown in FIG. 4, the lift bracket 1 according to the third embodiment is disposed at an outer position along the parallel direction among the six forks 3a and 3b disposed in parallel. Each of the two forks 3a has a receiving surface located above the receiving surface of the two forks 3b disposed at the inner position in the parallel direction, and the forks disposed at the outer position in the parallel direction. Each of the receiving surfaces 3a is inclined at a predetermined angle z toward the receiving surface of the fork 3b disposed at the inner position in the parallel direction.

If such a configuration is adopted, as in the first embodiment, the upper and outer ones of the loaded luggage 4 are located at the innermost positions of the loading center of the entire luggage 4. As a result, each of the loads 4 is tilted inward to support each other. As a result, the loaded state of the loads 4 is stabilized, and the risk of collapse of the loads is avoided. Furthermore, when the configuration according to the second or third embodiment is employed, the load 4 is reliably inclined inward by the respective load receiving surfaces of the forks 3a disposed at the outer positions in the parallel direction. Therefore, a more stable loading state is ensured as compared with the first embodiment.

In the above description, the number of the forks 3a and 3b provided in the lift bracket 1 is six, but the number is not limited to six, and at least three or more forks are provided. Needless to say, it is only necessary that the lift bracket 1 has a configuration in which the backrests 3a and 3b are disposed on the backrest 2. Further, in order to prevent the loaded luggage 4 from being damaged by the forks 3a, 3b, it is preferable to perform chamfering or rounding on the end of the receiving surface of each of the forks 3a, 3b.

Further, in the cargo handling apparatus according to the first to third embodiments described above, as shown in FIGS. 1 to 4, the loading surfaces of both the two forks 3a are arranged at the outer positions in the parallel direction. Both are provided at an upper position equidistant from the load receiving surface of the fork 3b disposed at the inner position thereof, and the forks 3a are symmetrical with each other. However, the present invention is not limited to such a configuration, and the height positions of the left and right forks 3a may be asymmetrical different from each other. Needless to say, the height positions may be different.

[0017]

As described above, according to the forklift loading and unloading device of the present invention, the outwardly bulging luggage is loaded on the load receiving surface of each fork as a parallel or a multistage. Even in such a case, the luggage that is located on the upper side and the outer side of the load becomes a loading state inclined inward, which is the center of loading, so that the loading state of the luggage becomes unstable, resulting in collapse of the load. The effect of no longer being performed is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a forklift cargo handling device according to a first embodiment.

FIG. 2 is a front view showing a relative positional relationship between the receiving surfaces of the forks of the cargo handling device according to the first embodiment.

FIG. 3 is a front view showing a relative positional relationship between respective receiving surfaces of forks of a cargo handling device according to a second embodiment.

FIG. 4 is a front view showing a relative positional relationship between load receiving surfaces of forks provided in a cargo handling device according to a third embodiment.

FIG. 5 is a perspective view showing a forklift cargo handling device according to a conventional mode.

FIG. 6 is a front view showing a practically loaded state of luggage according to a conventional form.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lift bracket (cargo handling device) 2 Backrest 3a Fork 3b Fork 4 Luggage

Claims (3)

[Claims] 1. A forklift loading and unloading device comprising three or more forks separated from each other and arranged in parallel with each other, wherein the fork receiving surface of the forks arranged outside in the parallel direction has an inner position in the parallel direction. A forklift cargo handling device, which is provided at a position higher than a load receiving surface of a fork disposed in the forklift. 2. The forklift loading and unloading device according to claim 1, wherein the receiving surfaces of the forks are substantially aligned with a single arc assumed in the parallel direction. 3. The receiving surface of each of the forks disposed at the outer position in the parallel direction is inclined toward the receiving surface of the fork disposed at the inner position in the parallel direction. A cargo handling device for a forklift according to claim 1.