JPS63263145A - Pallet handling mechanism for vehicle cargo bed - Google Patents

Abstract

PURPOSE:To facilitate the shift of a cargo from a vehicle cargo bed onto a lifter table by forming grooves in the floor of the vehicle cargo bed in the cargo receiving and delivery section in the direction of receiving and delivery of palletized cargo, and by disposing roller conveyers in these grooves, retractably with respect to the floor surface. CONSTITUTION:Guided grooves 115 for guiding jack rollers are formed in the floor surface 16 of a vehicle cargo bed 4, extending over the overall length of the bed from the inside 5 of the frontmost section to the receiving and delivery part 6 of the rearmost section along the moving direction of palletized cargo 102. Further, roller conveyer grooves 2 are formed in the cargo bed in the receiving and delivery part 6 along the guide grooves 115. Roller conveyers 3 having a base plate 7 attached on both sides thereof with cams 8 are disposed in the grooves 2. During storage of the conveyers 3, cam rollers 13 journalled to the roller conveyers 3 is engaged on the cams 8. By this arrangement, when the cam rollers 13 are engaged on the higher level cam surfaces 12 of the cams 8, the upper surfaces of the conveyer rollers 15 are positioned above the floor surface 16.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Purpose of the Invention [Field of Industrial Application] The present invention relates to a pallet handling mechanism used for carrying in and out of palletized cargo onto and from the loading platform of a vehicle such as a truck, particularly for carrying out.

[Prior Art] When palletized cargo is placed on a pallet and transported on a pan-type truck or the like, a long loading platform is used, as shown in Fig. 13, for example. 101
A plurality of palletized cargoes 102 are loaded and transported. When loading cargo, palletized cargo 102 is placed on the loading platform 101 of the vehicle.
from the carry-in/out entrance section 103 to 1104, or
How many vehicles 101 carry palletized cargo 102 when unloading cargo?
It is necessary to pull it out from the back 10/1 to the loading/unloading entrance section 103 and transfer it onto the lifter table 105.
The floor surface 118 of No. 1 is not a surface that can slide or slide due to the need to stably load cargo.
Equipment is required to assist the palletized cargo 102 in moving over the floor 118 of the loading platform 101. Conventionally, a jack roller is used as such a device.

The basic structure of the jack roller 107 is as shown in FIG. That is, the Jillecki roller 107 includes a frame 108, a cam (not shown), a cam roller (not shown), a roller frame 111, and a conveyance roller 120.
to the right.

The frame 108 has a thickness smaller than the thickness of the guide groove 115 of the guide rail 116. Cam is frame 1
08, and the cam roller is attached to a roller frame 111.

The conveyance roller 120 is normally housed within the frame 108 and does not protrude outside (see Fig. 14(a)).
)), when a lever (not shown) is pulled, the cam roller rides on the cam, the conveyance roller 120 projects downward, and relatively pushes the frame 108 upward (Fig. 14 (
b)).

On the other hand, as shown in FIGS. 15 and 16, the loading platform 101 is provided with a guide rail 116 in the direction in which the palletized cargo 102 is fed, which forms a guide groove 115 in which the jack roller 107 is accommodated.

When loading palletized cargo 102 onto the loading platform 101, the palletized cargo 102 is placed on the floor of the loading/unloading entrance 103 of the loading platform 101 using a forklift (not shown), and then palletized with the floor surface 118 of the loading platform 101. Guide groove 115 of guide rail 116 between cargo 102
When the jack roller 107 is inserted into the lever and the lever is pulled, the transport roller 120 protrudes below the frame 108, and the frame 108 relatively rises and guides) t1.
15, and pushes the bottom surface of the palletized cargo 102 upward, lifting it off the floor surface 118 of the loading platform 101 (FIG. 14(b)). Nowadays, palletized cargo 1
02, the transport rollers 120 are on the jack rollers 107 that function as wheels, so the jack rollers 107 push the palletized cargo 102 onto the loading platform 1.
It can be transported to the back 104 of 01.

Next, when unloading the palletized cargo 102 located at the back 104 of the loading platform 101, the palletized cargo 10.
2 will be moved in the opposite direction to the loading direction.

[Problems to be solved by the invention] By the way, a problem arises in the case of transport. In the case of unloading, the palletized cargo 102 located at the back 104 of the loading platform 101
After pulling it out to the loading/unloading entrance part 103 of the loading platform 101,
Furthermore, it is necessary to transship to a transshipment relay device. A lifter table 105- is known as a transshipment relay device.

However, since this lifter table 105 is not provided with a guide rail 116 for guiding the jack roller 107, the jack roller 107 cannot be transferred to the lifter table 105. Therefore, in conventional palletized cargo transport work, the jack roller 107
The palletized cargo 102 loaded on the back 104 of the loading platform 101
from the loading/unloading entrance section 103, and the loading/unloading entrance section 10
3, the jack roller 107 is removed, the palletized cargo 102 is placed on the floor surface 118 of the loading platform 101, and then the palletized cargo is transferred to the conveyor of the lifter table 105 using a forklift (not shown). The work was extremely complicated.

In order to eliminate the complexity of this work, it has been considered to use a hydraulic jack up roller.

This method using hydraulic jack up rollers installs a roller conveyor that lifts up and down using hydraulic pressure over the entire length of the floor of the vehicle loading platform, and when loading and unloading palletized cargo, the roller conveyor is lifted up and down from the floor using hydraulic pressure. The hydraulic jack-up roller is used to float the barrette so that it can be easily moved by hand, and then hand it over to the other party's conveyor or forklift with a lid table. It is necessary to provide a hydraulic system, and there is also the problem that the floor becomes thicker and the interior height of the truck becomes lower, reducing the space for loaded cargo.

This invention was made in view of the above-mentioned circumstances, and it facilitates loading and unloading of palletized cargo.
It is an object of the present invention to provide a valet cargo handling mechanism for a vehicle loading platform that allows easy transfer of palletized cargo from the loading platform to the lifter table, has a simple structure, and is inexpensive.

(b) Structure of the Invention "[Means for Solving the Problem] In response to this object, the valet loading structure of the vehicle loading platform of the present invention provides a structure for loading and unloading palletized cargo on the floor of the loading/unloading entrance portion of the vehicle loading platform in the loading/unloading direction. a groove formed in the groove, and a roller conveyor that can be stored in the groove, and the roller conveyor has a frame and a roller rotatably attached to the frame, and the roller is located at a height above the floor level. It is also characterized by being configured to be able to go in and out from above and below.

Hereinafter, details of the present invention will be explained with reference to the drawings showing one embodiment.

1, 2, 3, 4, and 5 show a pallet handling mechanism 1a according to a first embodiment of the present invention.
and a roller conveyor 3 that can be stored in a roller conveyor groove 2. 7M 2 is formed on the loading platform 4 with a middle wheel. The loading platform 4 has a guide groove 1 along the entire length from the back 5 at the front end to the loading/unloading entrance section 6 at the rear end for guiding the rollers along the moving direction of the palletized cargo 102.
15 is formed, and a plurality of roller conveyors) h
12 are formed.

As shown in FIGS. 1 to 3, the roller conveyor 3 is
It has a base plate 7, and cams 8 are attached to both sides of the male plate 7. The cam 8 includes a low cam surface 11 with a low height and a high cam surface 12 with a high height. A frame 14 is engaged with the cam 8 via a cam roller 13. The frame 14 rotatably supports a plurality of conveyor rollers 15.

The direction of the axis of rotation of the conveyor rollers 15 is perpendicular to the direction of movement of the palletized cargo 102. A cam roller 13 is rotatably attached to the side of the frame 14 and rests on the cam surface of the cam 8.

Thereby, the height position 2 of the conveyor roller 15 is defined by the height position of the cam surface of the cam 8.

When the cam roller 13 is engaged with the lower cam surface 11 of the cam 8, the upper surface of the conveyor roller 15 is located below the floor surface 16 of the loading platform 4; When engaged with the surface 12, the upper surface of the conveyor roller 15 is located above the floor surface 16 of the loading platform 4.

[Operation] The operation of loading and unloading palletized cargo using the pallet handling mechanism 18 configured as described above will be explained.

When loading palletized cargo 102 onto the loading platform 4, the conveyor rollers 15 of the roller conveyor 3 are positioned below the floor surface 16 of the loading platform 4.

A forklift 1 (not shown) transports the palletized cargo 102 onto the floor 16 of the loading/unloading port 6 of the loading platform 4 41.
Insert a conventionally used jack roller (141st code 107) into the guide groove 115 between the loading platform 4 and the palletized cargo 102.
5 in the back of the loading platform 4 with the tti on the jack roller.
The jack roller 107 is manually pushed in until the end, and finally the jack roller 107 is pulled out from the guide groove 115. Such a loading operation of palletized cargo 102 is no different from an operation in a conventional pallet handling mechanism.

Next, the unloading operation of the palletized cargo 102 is as follows.

First, when a plurality of palletized cargoes 102 are loaded to the fullest extent of the loading platform 4, unloading of the first palletized cargo 102 at the loading/unloading entrance section 6 at the rear end of the loading platform will be described. ) into the guide groove 115. Next, the jack rollers are lifted up, for example, by about 13 meters, and the palletized cargo 102 is loaded thereon.

Next, pull the frame 14 of the roller conveyor 3.

When the frame 1/I is pulled, the cam roller 13 transfers from the lower cam surface 11 of the cam 8 to the higher cam surface 12, and thereby the conveyor roller 15 is lifted up by about 8 #, for example, to the floor surface 16 of the loading platform 4. protrude upwards. Next, the jack roller 107 is allowed to slide. As a result, the palletized cargo 102 is transferred from the jack roller 107 to the roller conveyor 3. Next, the jack roller 107 is pulled out from the guide groove 115 and removed.

Next, when the palletized cargo 102 is pulled manually, the palletized cargo 102 is moved to the conveyor roller 1 of the roller conveyor 3.
5 and transfer to the lifter table 105. In this way, unloading of the first palletized cargo 102 is completed.

Next, unloading of the second palletized cargo 102 will be explained.

Insert the jack roller 107 into the guide groove 115.

Next, the jack roller 107 is lifted up and the second palletized cargo is loaded. Next, palletized cargo 102
The loading/unloading entrance part 6 is placed on the jack roller 107.
Pull until.

At this time, the roller conveyor 3 located at the carry-in/out entrance portion 6 remains lifted up from when the previous first palletized cargo was unloaded. Next, jack roller 107
is lifted down and the second palletized cargo 102 is transferred to the roller conveyor 3.

Next, the jack roller 107 is pulled out from the guide groove 115 and removed. Next, when the palletized cargo 102 is pulled manually, the palletized cargo 102 moves on the conveyor rollers 15 of the roller conveyor 3 and moves to the lifter table 105.
transfer to. In this way, unloading of the second palletized cargo 102 is completed.

The unloading operation of the palletized cargo from the third and subsequent vehicles is performed in the same manner as the unloading operation of the palletized cargo from the second vehicle.

(C) Effects of the Invention As described above, in the valet cargo handling machine 4'41a of the present invention, the roller conveyor 3 enables manual movement of palletized cargo at the loading/unloading entrance portion of the vehicle loading platform 14.

Therefore, it is possible to place the vehicle on the lid table from the cargo platform, and a forklift or the like is not required.

In addition, since no hydraulic system is required for operation, the structure is L! i
! At $1, the price will be on the low side. Furthermore, since it can be stored in the roller conveyor groove when not in use, the cargo loading space on the loading platform will not be narrowed.

(d) Other Embodiments FIGS. 6 to 12 show a pallet handling mechanism 1b according to another embodiment of the present invention.

The pallet handling mechanism 1b is a roller conveyor FS2a.

2b, and roller conveyors 3a and 3b that can be stored in roller conveyor grooves 2a and 2b.

Although the roller conveyor grooves 2a and 2b have different widths, they are provided along the guide grooves 115 at the loading/unloading entrance portion 6 of the loading platform 4, respectively.

M2a, 2t) for roller conveyors are provided with shoulders 21 on both sides as shown in FIG.

A roller conveyor 3a shown in FIG. 9 is accommodated in the roller conveyor groove 2a.
A roller conveyor 3b shown in FIG. 10 is housed in b.

As shown in FIG. 9, the roller conveyor 3a includes a frame 14a and a plurality of conveyor rollers 15a rotatably supported by the frame 14a. The roller conveyor 3a is housed in the roller conveyor 12a with the upper and lower seven lunges 22a or 22b of the frame 14a resting on the shoulders 21 of the roller conveyor groove 2a, but the attachment position of the conveyor roller 15a to the frame 4a is The neck is slightly tilted to one side in the vertical direction, and when the seven flange 22a of the frame 14a is placed on the shoulder 21 of the roller conveyor groove 2a, the top surface of the conveyor roller 15a is Floor surface 1 of loading platform 4
6, but when turned upside down, the 7 langes 22b of the frame 14a are aligned with the shoulders 21 of the roller conveyor grooves 28.
11, the upper surface of the conveyor roller 158 is located below the floor surface 16 of the loading platform 4. Note that the roller conveyor 3b accommodated in the roller conveyor groove 2b has the same configuration as the roller conveyor 3a except for the difference in configuration due to the difference in the axial length of the conveyor roller 15a.

In the pallet handling mechanism 1b having such a configuration, when unloading, the flange 22a of the frame 14a
Shoulder portions 21 of roller conveyor grooves 2a and 2b with the
to roller conveyor 3a.

3bJlrltl! tfff, thereby causing the upper surface of the conveyor roller 15a to protrude upward from the surface of the loading platform 4, allowing the palletized cargo 102 to be moved.

In addition, at times other than unloading, the roller conveyor 3a,
Turn 3b upside down and attach flange 2 of frame 1/la.
The conveyor roller 15a is placed on the shoulders 21 of the roller conveyor grooves 2a and 2b with its side facing down, and is housed in such a state that the upper surface of the conveyor roller 15a is located below the surface of the loading platform 4.

Since the pallet handling mechanism 1b having such a configuration and operation does not require a cam mechanism, the structure can be made simpler and cheaper than the pallet handling mechanism described as the first embodiment of the present invention.

[Brief explanation of the drawing]

Fig. 1 is a front explanatory view of the pallet loading mechanism, Fig. 2 is a plan explanatory view of baren 1 to loading nW1, Fig. 3 is a side explanatory view of the pallet loading mechanism, and Fig. 4 is a perspective explanatory view of the loading platform. Fifth
The figure is an explanatory plan view of the loading platform, FIG. 6 is an explanatory plan view of another loading platform, FIG. 7 is an explanatory cross-sectional view of Haku's loading platform, FIG. The figure is a front explanatory view of another roller conveyor, Fig. 10 is a front explanatory view of another roller conveyor, Fig. 11 is a cross-sectional explanatory view showing the state of the other roller conveyor at the time of unloading, and Fig. 12 is a storage illustration. Fig. 13 is a side view showing the relationship between the loading platform and palletized cargo; Fig. 14 is a side view showing the state of the conventional roller conveyor; Fig. 15 is a side view showing the relationship between the loading platform and the palletized cargo; 1 is an explanatory plan view of a conventional loading platform, and FIG. 16 is an explanatory cross-sectional view of the conventional loading platform. 1a, 1b... Pallet handling mechanism 2... Groove for roller conveyor 3, 3a, 3b... Roller conveyor 4... Loading platform 5... Back 6... Carrying in/out entrance part 7... Board 8 ...Cam 11・
...lower cam surface 12...higher cam surface 13...
・Cam roller 14... Frame 15... Conveyor roller 16... Floor surface 21... Shoulder part 2
2a, 22b...7 Lange patent applicant Osamu Kawai, patent attorney representing Toyo Seikan Co., Ltd. Figure 1 a Figure 2 Figure 3 1' + ljl II /
12 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 14 (a) (b) +16
120 120 111 116 Figure 15 Figure 16

Claims (1)

[Claims] A groove formed in the floor of the loading/unloading entrance portion of the vehicle loading platform in the loading/unloading direction of palletized cargo, and a roller conveyor that can be stored in the groove, and the roller conveyor includes a frame and a roller rotatably attached to the frame. A pallet loading mechanism for a vehicle loading platform, wherein the roller is configured to be able to move in and out above and below the height of the floor.