JPS6041504Y2 - Floor structure of a box for transporting frozen or refrigerated cargo - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a floor structure in a box for transporting frozen or refrigerated cargo.

Conventionally, transportation boxes used for keeping cool and transporting cargo that needs to be frozen or refrigerated, such as perishable foods, include pan trailers and van trucks, depending on their purpose, etc. Various types are known depending on the purpose.

This type of box body generally includes a storage (accommodation) for freezing and refrigerating the cargo and a cooling means for the storage, and the cold air generated in the cooling means is distributed to the floor of the storage. The cold air is also allowed to flow through the cold air flow passageway, which cools the cargo from below as well.

By the way, such a cold air flow passage usually has a load support part (for example, a ■-shaped shape) extending in the front-rear direction of the box body (warehouse) and having a predetermined height for supporting the loaded load, and further includes side A plurality of elongated floor-shaped materials such as alumina having engaging parts are engaged with each other and connected to each other and arranged side by side in the width direction to form the floor part, thereby forming a cargo support part such as the I-shape. It is now formatted in between.

On the other hand, a loader device called a pallet loader or the like has conventionally been used as a device for easily moving cargo loaded onto a loading platform using a forklift or the like.

As shown in FIG. 1, this loader device 1 is housed in an inverted butt-shaped guide rail 3 provided on a loading platform (floor section) 2, and is movable in the front-rear direction of the loading platform 2. There is.

More specifically, as is well known, the cargo 4 loaded onto the platform 2 as shown in FIG. 2a is lifted by the loader device 1 by operating the lever 5 as shown in FIG. After that, the loader device 1 is guided to the back of the loading platform 2 (in the direction of the arrow) by shifting the rollers 6 at the bottom of the loader device 1, and then, at the desired location, the loader device 1 is moved again by operating the lever 5. It is lowered and the cargo 4 is placed on the platform 2.

By the way, when such a loader device is installed in a storage box for transporting frozen cargo, etc., it is necessary to provide a guide rail for the loader device on the floor thereof. As shown, one part 8' of the ■-shaped load support part 8 of the floor member 7 is cut and attached, and the flange part on the side of the guide rail 3 is fixed to the load support part 8 with a countersunk head tapping screw 9. I try to force myself to do so.

However, in such a conventional structure, the flange portion of the rail 3 protrudes from the upper surface of the floor member 7 by the thickness of the flange plate; It was applied only to the shape material 7, which caused considerable problems in terms of strength.

Furthermore, in order to lay the rails 3, it is necessary to cut out one row of the load supporting portions 8' of the floor form material 7 for at least one of the rails 3 along the entire lengthwise direction (body longitudinal direction) as shown in FIG. There were also some problems.

Furthermore, when a load is loaded on the loader device and moved on the rail 3, since there is no support on the lower surface of the rail 3, the weight of the load 4 is directly transferred to the load support section 8, to which the rail 3 is attached. 8, thereby causing deformation as shown in FIG. 4, which also caused the problem that the screws 9 fixing the rail 3 would come off.

This invention was made in view of such circumstances, and
When a load is placed on the rail, the load should not be concentrated only on the floor section of the rail mounting section, but should be carried by the entire floor section, and when the load is moved by the loader device. However, all of the above-mentioned conventional problems could be solved by not only receiving the cargo on the cargo support part but also sharing it with the floor material.

Hereinafter, some embodiments of the present invention will be described in more detail based on the drawings.

First, in FIG. 5, reference numeral 11 denotes a floor material to which a guide rail (hereinafter abbreviated as rail) 12 for the loader device is attached, and on both sides thereof, other floor materials 13. 14.

The shapes and structures of other floor profiles 13 and 14 are well known to those skilled in the art, and are disclosed in, for example, Japanese Utility Model Publication Nos. 114481/1981 and 2941/1983 filed by the applicant of the present application.
Since this is also disclosed in Publication No. 7, etc., the explanation will be omitted here.

In short, the present invention is characterized by the floor material 11 to which the rails 12 are attached.

The floor material 11 shown in FIG. It forms a flat lower part to be placed on the floor of the body.

In addition, the height of the two outer cargo support parts, namely 15 and 18, is higher than the height of the inner cargo support part 16.
and 17 are made lower by the thickness of the flange portions 19 on both sides of the rail 12, and the distance between the two inner load supporting portions 16 and 17 is made larger than the width of the rail 12. , so that the rail 12 can be accommodated between them.

The rail 12 is accommodated between such inner load supports 16.1 and 16.1 at its flange 19.
It is fixed to the head of 7 with a countersunk head tapping screw 20 or the like.

On the other hand, a rail support flat part 21 protruding upward is formed in the lower flat part of the floor material 11 between the support parts 16 and 17, and the rail 12 attached to the support parts 16 and 17 is formed with a rail support flat part 21 projecting upward. It is designed to come into contact with the bottom of the housing and support it from below.

Therefore, with this configuration, even when the load is lifted and moved by the loader device installed in the rail 12, the bottom of the rail 12, on which the load is applied, is located on the lower flat part of the floor material 11. rail support part 2
1, the load is transferred to the rail support section 2.
1 and the load support part 16.17 attached to the rail 12, so that the support part 16.17
This effectively prevents deformation of the screws 20 and, in turn, the scattering of the screws 20.

In addition, by increasing the proportion of the load shared by the floor material 11 in this way, the thickness of the rail 12; be.

Furthermore, even when the cargo 22 is placed, the upper surface of the cargo support portion 15.18 and the upper surface of the flange portion 19 of the rail 12 are aligned, so that the load of the cargo 22 is transferred to the floor member 11. In addition, it is now supported by the entirety of the load support portions of other floor members, and it no longer hangs only on the load support portions 16, 17 to which the rails 12 are attached.

In addition, by using a floor material with such a structure, there is no need to cut out the entire length of the load support section in order to install the rails, which was required in the past.

In addition, in the floor form member 25 shown in FIG.
Slightly different from the mold shape, the upper flange ends 29a and 30a in the horizontal direction are respectively inclined downward.

In addition, the floor member 2 located between the supporting parts 29 and 30
The lower flat portion of 5 has a protrusion 3 of a predetermined height having a flat surface.
0 is provided and constitutes a rail support section.

Note that the height of the load support portion 29.30 to which this rail 28 is attached is also made lower than the other load support portions 26.27 by the thickness of the flange portion of the rail 28.

The shape of the side flange portion is slightly different from that of the rail 12 shown in FIG. .30, and the respective downwardly inclined portions 29a, 3 of the support portions 29 and 30.
It is fixed with a blind rivet 32 between it and 0a.

Of course, by installing the rail 28 in this manner, the bottom of the rail 28 comes into contact with and is supported by the rail support portion 31 of the floor member 25.

As a result, in addition to the load dispersion effect and deformation prevention effect as described above, the blind rivet 32 does not come into contact with the cargo, so the rivet 32 does not suffer wear or damage from the cargo. rail 28
The durability of fixation can be effectively improved.

Furthermore, since the rail 28 is fixed at a position that does not interfere with the cargo, it is possible to change from countersunk tapping screw fixing to blind rivet fixing, which has the advantage of eliminating countersunk work. There is.

Furthermore, since the rail 28 and the load support part 29,30 are fixed and connected between their downwardly inclined parts 28at, 29at, and 30a, water can enter through the gap between them, causing the support part 29. Within 30 minutes, there was no more standing water.

In the present invention, various shapes and structures can be adopted for the load support section and the rail support section, and some examples thereof are shown in FIGS. 7 to 10.

For example, as shown in Fig. 7a, the rail support part 33 is shaped like a ■, or as shown in Fig. 7b1 and Fig. 8a and b, the floor is located between the load support parts to which the rails are attached. All or part of the lower flat surface of the profile can be raised higher than the others and provided with legs 34, 35, 36.

In addition, instead of making the cargo support part a square shape as shown in Fig. 9a, it is also possible to have a shape 37 in which the lower flat surface of the floor form material is continuously bent, and furthermore, as shown in Fig. 9 , the rail can be supported by a protrusion 39 projecting horizontally from the cargo support part in addition to the rail support part 38 having a ■-shape.

Furthermore, as shown in FIG. 10 at b, the rail 4
When the height of 0 is approximately equal to the height of the load support part, the rail 40 may be directly supported by the lower flat surface 41 of the floor material, or by a plurality of small flat protrusions 42. It is also possible to do so.

In the above description, the cargo supporting part is exemplified as a cargo support part having a ■ shape, but a so-called keystone-shaped floor member may also be used.

For example, in the floor material 50 shown in FIG. 11, both shoulders 53 of the groove 52 to which the rail 51 is to be attached,
54 is lower than the loading surface by the thickness of the flange of the rail 51, so after the rail 51 is fixed to the shoulders 53 and 54 with countersunk tapping screws 55, the loading surface of the floor structure 50 is at the same height. Therefore, the load distribution is averaged.

Furthermore, in the floor material 60 shown in FIG. 12, a T-shaped protrusion 63 of a predetermined height is provided in the center of the groove 62 to which the rail 61 is to be attached, and constitutes a rail support section. .

The left side of the groove 62 is different from the usual keystone type floor material, and an inclined part 64 is formed downward in the upper flat part, and the left side of the rail 61 also extends upward along the groove 62. An inclined portion 65 is formed on the flat surface, and both inclined portions 64 and 65 are fixed with blind rivets 66.

Therefore, the rivet 66 does not come into contact with the cargo,
There is no wear or damage caused by cargo, and there is no possibility of water entering through the gaps and collecting in the grooves 62.

Furthermore, in the floor material 70 shown in FIG. 13,
Two T-shaped protrusions 73, 73 having a predetermined height are provided in the groove 72 to which the rail 71 is to be attached, and constitute a rail support.

Both shoulders 74.74 of the groove 72 are lower than the loading surface by the flange thickness of the rail 71.
After being fixed to the shoulder portion 74, the loading surface of the floor member 70 is at the same height and has the effect of distributing the load, as in the case of FIG. 11.

The present invention uses one or more of the floor materials to which rails for loader equipment are to be attached, and combines them with known floor materials to create a floor structure for a predetermined frozen or refrigerated cargo transportation box. It has great industrial significance in that it can solve all the problems with conventional structures.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing the loader device installed on the loading platform, Figures 2a and b are diagrams for explaining the movement of cargo by the loader device, and Figure 3 is a conventional rail for frozen bread, etc. FIG. 4 is an explanatory diagram showing a deformed state of the conventional rail mounting section. Fig. 5 is a partial cross-sectional view of the floor of a transport box according to an embodiment of the present invention, Fig. 6 is a partial cross-sectional view of a floor member showing another embodiment of the present invention, Fig. 7a, b; Figure 8 a, b; Figure 9 a
, b; FIGS. 10a and 10b are views corresponding to FIG. 6 (only half shown) showing still other embodiments of the present invention. FIG. 11 is a partial cross-sectional view of a keystone-type floor profile showing yet another embodiment of the present invention, and FIGS. 12 and 13 are partial cross-sectional views of a keystone-type floor profile as a modification of FIG. 11, respectively. be. 11.25, 50, 60, 70: Floor material, 12.28,
61, 71: Rail, 15-18, 26.27, 29,
30: Load support part, 21, 31: Rail support part, 28a
, 29at 30a, 64.65: Inclined portion.

Claims (2)

[Scope of utility model registration request] (1) A plurality of elongated floor members extending in the front-rear direction of the box body and having a load support portion of a predetermined height that supports the loaded load are arranged side by side in the width direction to constitute the floor portion, and For storing and transporting frozen or refrigerated cargo, guide rails with an inverted butt-shaped cross section are provided in the front and back direction of the floor to guide a loader device that lifts the loaded cargo and moves it to a predetermined position on the floor. In the floor structure of the transport box, two load supporting parts are provided as the elongated floor members with a sufficient interval to accommodate the guide rails,
In addition, the height of the two adjacent load supporting parts is reduced by the thickness of the flanges on both sides of the guide rail, and the rail supporting part that contacts the bottom of the guide rail and supports it from below is integrated. While using the floor form material provided,
A floor structure for a box for transporting frozen or refrigerated cargo, characterized in that flanges on both sides of the guide rail are fixed to cargo supporting parts of the floor material. (2) The ends of the flange portions on both sides of the guide rail are inclined downward, and fixed with rivets between the end portions of the flanges on both sides of the guide rail and the load supporting portion of the floor material which is inclined in accordance with the inclined portion. The floor structure according to claim 1 of the utility model registration claim.