JP3391879B2 - Pallet loading cart and pallet loading method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet loading truck used for transporting a pallet loaded with wooden products such as furniture parts to a drying oven or the like, and a pallet loading method for the pallet. .

[0002]

2. Description of the Related Art A conventional pallet-loading trolley used for the above-mentioned purpose has a large number of trolley racks on both sides of a trolley body 20 whose front face is completely open, as shown in FIGS.
21 is provided. And a pallet P with products
A loading conveyor 22 that carries (hereinafter, simply referred to as pallet P) moves into the trolley body 20 and then descends to move the pallet P to the trolley shelves 21 on both sides.
It is supposed to be placed between 21.

The inside of the carriage main body 20 needs to be a complete space so as not to hinder the movement of the loading conveyor 22 as described above, and the carriage rack 21 is inevitably a cantilever structure. Therefore, it is difficult to load a heavy pallet P from the viewpoint of the strength and stability of the trolley shelf 21, and only the light pallet P can be loaded. Further, in the conventional pallet loading cart, since the pallet P is merely placed on the trolley shelf 21, the workability of manually pulling out the pallet P from the trolley shelf 21 is not good.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, enables stable loading of relatively heavy pallets, and facilitates the operation of pulling out pallets from a trolley. The present invention has been completed in order to provide a pallet loading trolley and a pallet loading method.

[0005]

The pallet loading carriage of the present invention made to solve the above-mentioned problems is for supporting a pallet inside a box-shaped carriage main body having at least two adjacent side surfaces open. A large number of rollers are arranged in multiple stages, and a horizontal bogie frame that supports at least one shaft end of these rollers is provided with a notch for passing a pallet pushing piece. Further, in the pallet loading method of the present invention, the table on which the pallet is placed is positioned outside the bogie frame of the pallet loading dolly, and the pallet pushing piece provided corresponding to the notch places the pallet on the table on the roller. It is characterized by pushing.

[0006]

The pallet loading truck according to the present invention does not require the inside of the truck main body to be a complete space, as will be apparent from the following embodiments, and has a structure in which both shaft ends of a large number of rollers are supported. be able to. Therefore, even a relatively heavy pallet can be stably loaded. Further, since the pallet is placed on the rollers, it is easy to pull out the pallet from the cart. Further, according to the pallet loading method of the present invention, the pallet is pushed in while passing the pallet pushing piece through the notch provided in the bogie frame, so that the height of the pallet pushing piece can be increased. Therefore, even if the pallet is slightly warped, the pallet can be moved without any trouble.

[0007]

The present invention will be described below in more detail with reference to the illustrated embodiments. 1 to 3 show a pallet loading truck according to an embodiment of the present invention, in which 1 is a box-shaped truck body with at least two adjacent side surfaces open, and 2 is a truck body 1.
Is a large number of rollers for supporting pallets arranged in multiple stages inside. In the embodiment, both shaft ends of these rollers 2 have horizontal bogie frames 3 provided in multiple stages as shown in FIGS.
However, it is also possible to use one surface of the box-shaped trolley body 1 as a closing surface to support one shaft end of these rollers 2 on the closing surface. The roller 2 is a pallet P
A plurality of them are provided in the same horizontal plane so that they can be stably supported.

As shown in FIGS. 2 and 4, a notch 4 is formed in these horizontal bogie frames 3. These notches 4 are for allowing the pallet pushing piece 5 to pass therethrough, and are provided at an intermediate position between the rollers 2, 2.

6 is a table on which a pallet P is placed,
It is possible to move up and down according to the height of the rollers 2 provided in multiple stages. The table 6 is located outside the horizontal bogie frame 3 having the notch 4 described above. FIG. 6 shows an example of the pallet P, and painted wood products are placed in the embodiment, but the type of product is not limited to this.

The pallet pushing piece 5 is for pushing the pallet P in the axial direction of the roller 2 from the top of the table 6, and as shown in FIG. 4 and FIG. I have However, as described above, the bogie frame 3 is formed with the notch 4 for allowing the pallet pushing piece 5 to pass therethrough, and the downward protruding portion of the pallet pushing piece 5 must move through this notch 4. You can

In order to load the pallet P onto the pallet loading carriage constructed as described above, as shown in FIG. The height of the upper surface of the table 6 should be slightly higher than the height of the upper surface. Then, the pallet pushing piece 5 is moved toward the pallet loading carriage to push the pallet P on the table 6 onto the roller 2. At this time, the lower portion of the pallet pushing piece 5 moves through the notch 4 of the bogie frame 3 as shown in FIGS. 4 and 5, and since the pallet pushing piece 5 extends vertically above the pallet P, the pallet P It can be pushed in without any problems even if it is slightly irregularly warped. Further, the pallet P can be easily taken out in the direction perpendicular to the axis of the roller 2. For this purpose, it is necessary that the side surface of the box-shaped bogie body 1 in the direction perpendicular to the axis of the roller 2 is also opened, and the above-mentioned "box-shaped bogie body in which at least two adjacent side surfaces are opened" is used. Means that the two side surfaces of the pallet P, the pushing side and the take-out side, are open to the extent that the pallet P can pass through.

FIG. 7 shows an example in which the pallet loading truck of the present invention is applied to a drying line for wooden products. In FIG. 7, 10 is a flat type coating machine, which coats the products on the pallet P transferred by the conveyor 11. The pallet P is conveyed to the table 6 which can be raised and lowered. A trolley conveyor 13 for transporting the pallet loading truck is provided on the side of the table 6, and the pallet loading truck loaded on the trolley conveyor 13 at the empty truck loading section 14 is on the side of the table 6. Stop at.

A pallet pushing piece 5 is provided behind the table 6 and pushes the pallet P on the table 6 onto the roller 2 of the pallet loading carriage as indicated by the arrow. The operation of this portion is as described above, and the roller 2
Has a structure in which both ends are supported, so that a heavy pallet P can be stably supported. The table 6 can be pushed up and down to sequentially push the pallets P onto the rollers 2 in each stage. In this way, the pallet loading carriage on which the pallet P is mounted is conveyed to the drying furnace 15 by the carriage conveyor 13 and dried. Then, the pallet P is taken out from the roller 2 in the trolley unloading section 16, and the pallet loading trolley is emptied and returned to the empty trolley loading section 14.

Although the tip surface of the pallet pushing piece 5 is flat in the embodiment described above, the upper surface of the table 6 is slightly higher than the upper surface of the roller 2 as shown in FIG. 8 (A). Therefore, when the rear end portion of the pallet P pushed by the pallet pushing piece 5 comes off the table 6, the pallet P may drop on the roller 2 and receive an impact. Therefore, if the tip end surface of the pallet pushing piece 5 is formed as an inclined surface 5a as shown in FIG. 8B, the pallet P is pushed onto the roller 2 in the state of (B), and the pallet pushing piece 5 moves backward. The rear end of the pallet P
As in (C), there is an advantage that the inclined surface 5a slides smoothly and can be placed on the roller 2 without falling.

[0015]

As described above, according to the present invention, a relatively heavy pallet can be stably loaded, and the pallet can be easily pulled out from the carriage by using the rollers. There is an advantage that can be.

[Brief description of drawings]

FIG. 1 is a side view showing a pallet loading truck according to an embodiment of the present invention.

FIG. 2 is a front view showing a pallet loading truck according to an embodiment of the present invention.

FIG. 3 is a plan view showing a pallet loading truck according to an embodiment of the present invention.

FIG. 4 is an enlarged front view showing a cutout portion of a bogie frame.

FIG. 5 is an enlarged side view showing a cutout portion of the bogie frame.

FIG. 6 is a perspective view showing a pallet.

FIG. 7 is a plan view showing an example in which the present invention is applied to a drying line for wooden products.

FIG. 8 is a side view showing the movement of the pallet pushing piece.

FIG. 9 is a side view showing a conventional pallet loading truck.

FIG. 10 is a front view showing a conventional pallet loading truck.

FIG. 11 is a plan view showing a conventional pallet loading truck.

[Explanation of symbols]

1 dolly body, 2 rollers, 3 dolly frame, 4 notches,
5 Pallet pushing piece, 6 table, P pallet

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shown 60-23133 (JP, U) Shown 56-127053 (JP, U) Shown 56-31965 (JP, U) Shown 48- 88831 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65D 19/42 B62B 5/00 B65G 47/00

Claims (2)

(57) [Claims] 1. A plurality of rollers for supporting a pallet are arranged in multiple stages inside a box-shaped carriage main body having at least two adjacent side surfaces opened, and a horizontal roller supporting at least one shaft end of these rollers. A pallet-loading trolley, characterized in that the trolley frame is provided with a notch for allowing a pallet pushing piece to pass through. 2. A table on which a pallet is placed is positioned outside a bogie frame of the pallet loading cart according to claim 1, and the pallet pushing piece provided corresponding to the notch pushes the pallet on the table onto the roller. Pallet loading method characterized by.