JPS6119499B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a ventilated container, which simplifies manufacturing operations and is characterized by complete and easy corrosion protection treatment inside the ventilator.

That is, the present invention applies corrosion protection to a top or bottom rail assembly of a predetermined shape to which a ventilator is welded in advance, and even when other members such as roof panels, side panels, end panels, etc. The treatment, specifically the paint, etc., is characterized by not being scorched. Therefore, unlike the conventional ventilator, the interior of the ventilator is completely anti-corrosion treated, its durability is improved, and manufacturing operations can be simplified.

Ventilated containers are used to transport perishable cargo such as fruits and vegetables that do not require refrigeration, or other cargo, and are equipped with ventilators at appropriate locations to allow communication between the inside and outside.

The ventilator must be constructed to allow free air circulation and completely prevent rainwater from entering.

Conventionally, for this type of ventilation container, the top side rail (or top front end rail) was a square pipe, and the bottom of the square pipe was
side panel (or front end panel)
An appropriate number of ventilation holes are provided on the outside of the mounting part, and an appropriate number of ventilation holes are provided on the inside side of the square pipe container to serve as a ventilator, or as shown in Figure 4, the side panel 30 of the corrugation (or the front end) A ventilation hole 31 is provided above the outer trough of the panel), and a top side rail 32 is provided separately.
A ventilator is provided in which a cover 34 having a ventilation hole 33 is welded to the lower part of the ventilation hole 31 covers the ventilation hole 31 from the top front end rail (or the top front end rail).

In the figure, 35 is a roof panel, and 36 is a baffle plate. However, in any of the above configurations, it is difficult to perform internal corrosion prevention treatment.

In other words, the corrosion prevention treatment inside the ventilator is specifically painted, but in the case of the former, even if the inside of the square pipe that serves as the top side rail (or top front end rail) with ventilation holes is painted, the roof will not be damaged. The internal paint is scorched by the heat during welding with the panel or side panel (or front end panel), resulting in no internal corrosion protection.In the latter case, the side panel 30 ( The same problem occurred even if the front end panel) and cover were painted.

This type of container is used for sea transportation, and since air containing salt enters and exits the ventilator, anti-corrosion treatment is especially important.

In order to eliminate the above-mentioned drawbacks, there is a model in which the cover 34 is attached by rivets or the like instead of welding after being painted in advance, but it takes time and effort to seal it to prevent rainwater from entering. However, it has the disadvantage that it is weak in strength and lacks durability, and if it collides with other parts during handling, it will deform and the sealing effect will decrease.

The present invention eliminates the above drawbacks.

Below, some embodiments of the invention will be described in detail with reference to the drawings.

Example 1 FIG. 1 shows an exploded view of a container manufactured according to the invention.

That is, a floor assembly 2 having bottom side rails 1 and 1a, side panels 3 and 3a erected on both sides thereof, a front end panel 4 erected at one end, a door frame 5 and a door 6 provided at the other end, and a side panel. It is comprised of top side rail assemblies 7, 7a provided above the panels 3, 3a and a roof panel 8 attached above them. In the figure, 16 is a corner metal fitting, and 17 is a corner post.

However, the present invention is not limited to the top front end rail 4 provided at the upper end of the front end panel 4.
It can also be used as a bottom side rail 1, 1a (or a bottom front end rail).

As shown in FIGS. 2 and 3, in the present invention, the top side rail assemblies 7 and 7a (in the following description, the top side rail assembly 7a will be described with the same reference numeral) are top rails made of square pipes. It is constructed by integrating an outer plate 10 and an inner plate 11 welded to the lower surface of the frame 9 at appropriate intervals, and a square pipe 14 welded to their lower ends.

Furthermore, the lower part of the outer plate 10 and the inner plate 11
Ventilation holes 12 and 13 are provided above. In the figure, 15 is a baffle plate.

The top side rail assemblies 7, 7a having the above structure are subjected to corrosion protection treatment in advance.

That is, the top side rail assemblies 7, 7a are immersed in paint or the like to provide anti-corrosion treatment,
After waiting for the paint to dry, as shown in Figure 3, weld the roof panel 8 and side panels 3 and 3a with welds a and b.
be done. At that time, the roof panel 8 and side panels 3, 3a are welded to the top rail 9 made of square pipes and the square pipe 14 provided below, and as a result, the heat generated during welding with the roof panel 8 and side panels 3, 3a causes the ventilation The inside, that is, the outer plate 10 and the inner plate 11, are not heated, and therefore the internal paint is not scorched and the anti-corrosion effect is not reduced. Note that during the above-mentioned welding, the paint applied to the outer and inner surfaces of the top rail 9 and the square pipe 14 made of square pipes is burnt, but the outer surfaces can be pretreated and completely repainted afterwards, and the inner surfaces can be completely repainted. is fine as is.

That is, when both ends of the top rail 9 and the square pipe 14, which are made of square pipes, become containers, corner fittings 16 or corner posts 1 are used.
7 and is airtight, with no air entering or exiting, so even if the interior coating is incomplete, it will not corrode.

Embodiment 2 As shown in FIGS. 5 and 6, the top side rail assemblies 7', 7a' (in the following description, the top side rail assembly 7a' will also be described with the same reference numerals) have an upper side 18a and a top side rail assembly 7a'. Bottom side 1
8b are bent horizontally in opposite directions to form a substantially S-shape, and a top rail 18 is provided with a ventilation hole 19 slightly above the center thereof, and the top side 18a of the top rail 18 is directed toward the inside of the container. when it fits within the recess c configured on the outside;
It is constituted by a bent plate 20 with a lower part 20a bent and a ventilation hole 21 provided in the lower part.

The top side rail assemblies 7' and 7a' having the above structure are subjected to anti-corrosion treatment in advance.

That is, the top side rail assemblies 7' and 7a' are immersed in paint to give them anti-corrosion treatment, and after waiting for the paint to dry, they are welded to the roof panel 8 and side panels 3 and 3a as shown in Figure 6. e will be done. In this case, in the present invention, the top side rail assemblies 7', 7a' are provided with an upper side 18a and a lower side 18b of a top rail 18 configured in a substantially S-shape, and the roof panel 8 is attached to the upper side 18a. Side panels 3, 3a on the lower side 18b
is welded.

Therefore, the inside of the ventilator, that is, the attachment part of the bending plate 20, will not be heated by the heat generated during welding with the roof panel 8 and the side panels 3, 3a, and the paint in that part will not be scorched. , which does not reduce the anti-corrosion effect.

That is, in the above invention, the upper side 18a and the lower side 18b of the top side rail assemblies 7', 7a' are open on the side opposite to the welding part, which has an excellent heat dissipation effect and makes it easier to attach the bending plate 20. The heat during welding is not transmitted to the parts.

Note that during the above welding, the paint applied to the upper and lower surfaces of the upper side 18a and lower side 18b of the top side rail assemblies 7' and 7a' is scorched, but there is no inaccessible cavity and there is no external contact. It is free and can be easily pre-treated and completely repainted afterwards.

Embodiment 3 FIG. 7 shows an embodiment in which the top side rail assemblies 7, 7a shown in Embodiment 1 are used, and the bottom side rails 1, 1a are replaced by bottom side rail assemblies 1', 1a'. has been done.

8 to 9 show details of the bottom side rail assemblies 1', 1a'.

First, referring to FIG. 7, a floor assembly 2 having bottom side rail assemblies 1' and 1a', side panels 3 and 3a erected above them, a front end panel 4 erected at one end, Door frame 5 and door 6 provided at the other end, side panels 3, 3
It is comprised of top side rail assemblies 7, 7a provided above a and a roof panel 8 attached above them. Bottom side rail assembly 1' (In the following explanation, bottom side rail assembly 1'
a′ will also be explained using the same reference numeral. ), a bottom rail 23 whose lower end is bent outward is welded to the inner side of the lower surface of the square pipe 22, a metal plate 24 is welded to the outer side of the lower surface of the square pipe 22, and the bottom rail 23 is welded to the outer side of the lower surface of the square pipe 22.
3 side and welded to approximately the middle part of the bottom rail 23, and above the bottom rail 23 and the metal plate 24.
Ventilation holes 25 and 26 are provided below, respectively.

In the above description, the lower part of the metal plate 24 is welded to approximately the middle part of the bottom rail 23 in order to avoid welding the cross member 27 directly inside the ventilator configured thereby. Therefore, in carrying out the present invention, a bottom rail 23 that is taller (width) than conventional ones is used in advance.

However, the height (width) of the cross member 27 may be reduced. In that case, cross member 2
7 needs to be made thicker than before to provide strength.

The bottom side rail assemblies 1', 1a' having the above structure are subjected to anti-corrosion treatment in advance.

That is, the bottom side rail assemblies 1', 1a' are immersed in paint for anti-corrosion treatment, and after waiting for the paint to dry, the side panels 3, 3a and the cross member 2 are coated as shown in FIGS. 8 and 9.
7 and welded f and g. In this case, in the present invention, as described above, the cross member 27 is connected to the bottom side rail assemblies 1', 1a' and the metal plate 24.
Welded below the welded part.

As described above, these can be easily done by adjusting the height (width) of the bottom rail 23 or cross member 27 constituting the bottom side rail assemblies 1', 1a' in advance.

The bottom side rail assemblies 1', 1a' having the above configuration, the side panels 3, 3a, and the cross member 27 are welded to the upper surface of the square pipe 22 in the case of the side panels 3, 3a, and are welded to the inside of the ventilator, i.e. , welding heat is not transmitted to the bottom rail 23 and the metal plate 24,
Therefore, the paint inside will not be scorched and the anti-corrosion effect will not be reduced.

The same applies to welding the cross member 27.

Note that during the above welding, the paint applied to the outer and inner surfaces of the square pipe 22 is scorched;
The outer surface can be pretreated and completely repainted afterwards, while the inner surface can be left as is.

That is, as described in Example 1, when the square pipe 22 is used as a container, the openings at both ends thereof are sealed with the corner post 17, creating an airtight state and no air entering and exiting, so that the internal coating is incomplete. Even if it is, it will not corrode.

Moreover, the parts where the paint was burnt during welding of the cross member 27 can be completely repainted by pre-treatment afterwards.

As described above, according to the present invention, the ventilator can be strongly constructed by welding the top and bottom rail parts, and the inside of the ventilator is completely corrosion-proofed so that it is not affected by the heat generated during welding with other parts. The durability is improved because of this structure, and since the top and bottom rails and the ventilator are integrated in advance, the container can be manufactured easily.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an exploded perspective view of a container, FIG. 2 is a cutaway perspective view of a top side rail assembly, and FIG. 3 is a top side rail showing the completed state of the container. FIG. 4 is a longitudinal sectional view showing a conventional upper ventilator section, FIG. 5 is a cutaway perspective view of a top side rail assembly showing another embodiment, and FIG. 6 is a cross-sectional view of a container. FIG. 7 is an exploded perspective view of the container showing another embodiment; FIG. 8 is a cutaway perspective view of the bottom side rail assembly; FIG. FIG. 2 is a partially omitted vertical cross-sectional view of the bottom side rail portion showing the completed state of the container. 1, 1a... bottom side rail, 1, 1a'...
...Bottom side rail assembly, 3, 3a...
...Side panel, 4...Front end panel,
7, 7a, 7', 7a'... Top side rail assembly, 8... Roof panel, 9... Top rail, 10... Outer plate, 11... Inner plate, 1
2, 13, 19, 21, 25, 26...Vent hole,
14... Square pipe, 15... Baffle plate, 18... Top rail, 18a... Upper side, 18b... Lower side,
20...Bending plate, 22...Square pipe, 23...
Bottom rail, 24...metal plate.

Claims (1)

[Claims] 1. A ventilator is welded in advance to the top or bottom rail assembly, which has a square pipe section or an open back section to which panels are welded above and below, and is subjected to corrosion-proofing treatment, and a panel is welded to the square pipe section or open back section. A method for manufacturing a ventilated container characterized by assembling the container.