JP2004269005A - Openable/closable roof for container or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically open/close a roof by automatically folding and expanding a waterproof sheet, and at the same time, to efficiently fold the sheet without hanging it downward when the sheet is folded in an openable/closable roof for a container or the like for which the waterproof sheet is stretched on the opening of the upper surface of the container or a truck deck. <P>SOLUTION: The waterproof sheet 2 is stretched in the width direction of the container 1 or the like, and is formed into a hood type by supporting the waterproof sheet 2 by a U-shaped supporting frame 7 which can be moved in the longitudinal direction of the container 1 or the like with a proper interval. The supporting frame 7 has a folding structure by connecting post parts 7a with each other by a link mechanism 9 through the combination of link arms 9a and 9b each other. An axially attaching part 10 of the link arm or an arm extended part 11 from the axially attaching part 10 are made protrusile upward from the supporting frame 7, and a connecting member 12 is bridged between the projected upper ends in the width direction of the container 1 or the like to constitute the openable/closable roof for the container or the like. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a roof for opening and closing a container or a truck bed in which a waterproof sheet is stretched over an upper surface opening as a roof.
[0002]
[Prior art]
2. Description of the Related Art In recent years, container transportation has been increasing in terms of reducing transportation costs and packaging costs, shortening transportation periods, and preventing cargo pain. However, since the containers are box-shaped and most of the containers have an entrance at one rear end, a crane or the like cannot be used.
[0003]
Therefore, there is also a sheet roof type container in which the upper surface of the container box is used as an opening surface and closed with a waterproof sheet, and by removing the waterproof sheet and loading and unloading from the upper surface opening, it is more efficient with a lifting device such as a crane. Can be done.
[0004]
FIG. 10 shows an example of this. In the figure, reference numeral 1 denotes a container, and a waterproof sheet 2 covers the upper surface of the container 1 with an opening surface, and extends the end portion onto the side top rail 1a. In the figure, 1b is a side bottom rail, 1c is a corner post, and 1d is a side wall.
[0005]
To fix the waterproof sheet 2, a large eyelet 3 is provided, and a perforated projecting piece 4 from the side top rail 1a penetrates and protrudes there. The end of the conductive sheet 2. To remove the waterproof sheet 2, the rope 5 is removed and the locking is released.
[0006]
In addition, there is no patent document about a sheet roof type container.
[0007]
Also, as shown in a conventional example of Patent Document 1 below, a luggage transport vehicle such as a truck moves a framework called a so-called accordion type using a rotatable cross bar on both sides of a cargo box surrounding wall. There is an apparatus which is provided upright as possible, is provided with a sheet cover, and is connected thereto, and is provided with an openable and closable carrier cover device.
[0008]
[Patent Document 1]
JP-A-11-151939
[Problems to be solved by the invention]
In the method in which the waterproof sheet 2 is fixed by the ropes 5 shown in FIG. 10, the attaching and detaching of the waterproof sheet 2 is a manual operation, which takes time and labor. Therefore, an automatic opening and closing mechanism is desired.
[0010]
Further, in the case where a framework called a so-called accordion type using a rotatable cross bar as in Patent Document 1 is erected movably, a sheet is put on the frame, and the frame is joined to provide a loader cover device which can be freely opened and closed. When folded, a sheet that is folded between the frames enters, and if it hangs down, it may touch the cargo inside or get tangled by others, which may hinder opening and closing operation and damage the sheet. .
[0011]
The object of the present invention is to solve the above-mentioned disadvantages of the conventional example, and to automatically fold and expand the waterproof sheet in an opening / closing roof of a container or a container in which a waterproof sheet is stretched at an upper opening of a truck or a cargo bed, It is an object of the present invention to provide an openable / closable roof, such as a container, which can automatically open and close the roof and can efficiently fold the sheet without hanging down the sheet at the time of folding.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the present invention firstly, in an opening / closing roof of a container or the like in which a sheet is stretched over an opening on the upper surface of a container or a truck bed, the sheet is bridged in the width direction of the container or the like, A U-shaped support frame that can be moved in the front-rear direction and is supported at appropriate intervals to be a hood type. The support frame has a collapsible structure by connecting its columns to each other by a link mechanism by coupling link arms. The shaft attachment portion of the arm or the arm extension portion therefrom can be protruded above the support frame in accordance with the folding of the link mechanism, and the connecting member is passed between the protruding upper ends in the width direction of the container. The gist is that.
[0013]
Secondly, the arm extension portion protrudes in the direction opposite to the direction in which the support frame moves for folding, thirdly, the connecting member is a rotating body, fourthly, the end portion The movement of the support frame is performed by pulling the endless wire stretched by the driving roller and the guide roller. Fifth, the support frame of the support frame is provided with a sliding member that contacts the side top rail of the container. It is a summary.
[0014]
According to the first aspect of the present invention, the waterproof sheet is supported at appropriate intervals by a U-shaped support frame that is bridged in the width direction of a container or the like as a hood type, and the support frame is disposed in the front-rear direction of the container or the like. By moving to, it is folded or unfolded. Then, the shaft attachment portion of the link arm of the link mechanism or the arm extension portion therefrom protrudes above the support frame in accordance with the folding of the link mechanism, thereby lifting the sheet at this portion and hanging the sheet downward. Can be folded without the need.
[0015]
In order to allow the shaft attachment portion of the link arm of the link mechanism to protrude above the support frame, as a margin, the support portion of the support frame is relatively high and the entire opening / closing mechanism has a height. By allowing the arm extension from the shaft attachment of the link arm of the link mechanism to protrude above the support frame, the support column of the support frame does not need to be high, and the overall height is small and bulky. Can be none.
[0016]
According to the second aspect of the present invention, in addition to the above-mentioned operation, the arm extension portion is provided by projecting in a direction opposite to a direction in which the support frame moves for folding, so that the arm extension portion is provided. The part rotates in an arc in the direction in which the support frame moves for folding around the shaft attachment part of the link arm as a fulcrum. As a result, the connecting member pushes up the sheet in the direction in which the support frame moves for folding, and the folded portions are overlapped, so that the sheet can be folded without difficulty.
[0017]
According to the third aspect of the present invention, since the connecting member is a rotating body, it is possible to smoothly push up the sheet for folding as described above without causing frictional resistance.
[0018]
According to the fourth aspect of the present invention, the movement of the end supporting frame is performed by pulling the endless wire stretched by the driving roller and the guide roller, so that the sheet opening / closing operation can be easily performed by the forward / reverse rotation of the driving roller. Can be done. Further, if the rotation of the driving roller is driven by a motor, an automatic opening / closing operation becomes possible.
[0019]
According to the fifth aspect of the present invention, by using the side top rail of the container as a guide rail for moving the support frame, it is not necessary to separately provide a guide rail, and the side top rail of the container is provided on the support portion of the support frame. By arranging the sliding member in contact with the rail, even if the side top rail of the container is wide, smooth movement can be performed.
[0020]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partially omitted longitudinal side view showing one embodiment of an opening / closing roof of a container or the like of the present invention. FIG. 2 is a plan view of the same, and a waterproof sheet 2 described later is omitted in FIG.
[0021]
The present invention relates to a case in which a waterproof sheet 2 is provided as a roof for opening and closing the container 1. In FIGS. 3 to 5 showing details, 1a is a side-top rail of the container 1, and the waterproof sheet 2 covers the upper surface of the container 1. Cover the opening surface 6 and extend the end until it overlaps the side top rail 1a.
[0022]
In the width direction of the container 1, a U-shaped support frame 7 composed of a support portion 7a that is a right and left vertical portion and a beam portion 7b that is a horizontal portion (a curved portion is also possible) is bridged. A sliding member 8 made of a backing plate made of a nylon resin is provided in contact with the side top rail 1a of the container 1 so as to be movable in the front-rear direction of the container 1 using the side top rail 1a as a guide rail.
[0023]
As shown in FIGS. 1 and 2, the support frames 7 are arranged at appropriate intervals in the front-rear direction of the container 1, and the waterproof sheet 2 is supported by the beam portions 7b to be a hood type. In this case, the waterproof sheet 2 is fixed to each beam 7b.
[0024]
Further, the support frame 7 has a structure in which the support members 7a are connected to each other by a link mechanism 9 formed by coupling the link arms 9a and 9b between the front and rear, so that the entire support frame 7 can be folded in the front and rear direction.
[0025]
The tip of the shaft attachment portion 10 of the link arms 9a and 9b or the arm extending portion 11 extending from the shaft attachment portion 10 can be protruded above the support frame 7 in accordance with the folding of the link mechanism 9. . The arm extension portion 11 may be an extension of the link arm 9a of the link arms 9a and 9b, but in the present embodiment, is an extension of the link arm 9b. By doing so, the arm extension portion 11 projects forward from the shaft attachment portion 10 in the direction opposite to the direction in which the support frame 7 moves when folded, and the link mechanism 9 is folded. Accordingly, the arm extension 11 rotates in the same direction as the direction in which the support frame 7 moves, that is, in the folding direction.
[0026]
Further, in the width direction of the container 1, the connecting member 12 is passed between the upper end of the arm attachment portion 10 of the projecting link arm 9 a, 9 b or the arm attachment portion 10. The connecting member 12 may be a tubular member such as a pipe or the like in addition to a flat bar-shaped member as shown in the figure.
[0027]
The end of the parallel support frame 7 (the foremost side in the folding direction) is formed integrally with the push angle 13 as a folding and spreading drive unit, and the middle of the endless wire 14 to be pulled is connected to the push angle 13. I do. As shown in FIGS. 7 and 8, the endless wire 14 was wound and stretched around a drive roller 15 and a guide roller 16. More specifically, the endless wire 14 exits from the drive roller 15 and goes from one side of the container 1 to the back side on one side of the container 1, turns up and down, and passes over the drive roller 15. It extends to the other side of the container 1, and then goes from the front side to the back side of the other side of the container 1, turns up and down, and reaches the drive roller 15.
[0028]
The connection between the pushing angle 13 and the endless wire 14 for towing is performed below the endless wire 14 which is turned from the front side to the back side of the container 1 and turned up and down. , The left and right sides of the container 1 are connected to the lower side.
[0029]
Next, the usage will be described. If the drive roller 15 is manually turned or driven by a hydraulic or electric motor 17, the endless wire 14 is pulled, and the push angle 13 moves accordingly.
[0030]
In the state where the roof of the container 1 is closed, as shown in FIG. 3, the link mechanism 9 is expanded, the support frames 7 are spaced from each other, and the tip of the arm extension 11 is also lower than the support frame 7 ( The connecting member 12 does not push up the waterproof sheet 2. In this state, the waterproof sheet 2 is stretched.
[0031]
To open the roof, when the push angle 13 is moved from the rear to the front, the support frames 7 arranged in front of the push angle 13 are pushed, and the link mechanism 9 is closed. At the same time, the arm extension 11 rotates and rises, the connecting member 12 pushes up the waterproof sheet 2 in a chevron, and the support frames 7 come close to each other. It folds in a mountain fold without hanging down below 7.
[0032]
On the other hand, in order to spread the folded waterproof sheet 2 and close the roof, the drive roller 15 is reversed in the reverse operation, the endless wire 14 is pulled in the reverse direction, and the push angle 13 is returned to the original position. Good.
[0033]
In addition, although the said embodiment demonstrated the opening and closing roof of the container 1, this invention can be similarly applied also to the opening and closing roof of a truck bed. Further, the present invention can be similarly applied to a large storage container for transportation or storage having an upper opening other than the container and the truck bed.
[0034]
【The invention's effect】
As described above, the openable roof of the container and the like according to the present invention is configured such that the waterproof sheet is automatically folded and unfolded in the openable roof of the container and the like in which the waterproof sheet is stretched over the upper opening of the container or the truck bed. In addition, the roof can be automatically opened and closed, and the sheet can be efficiently folded without hanging down when folded.
[Brief description of the drawings]
FIG. 1 is a partially omitted side view showing an embodiment of an opening / closing roof such as a container of the present invention.
FIG. 2 is a partially omitted plan view showing an embodiment of an opening / closing roof such as a container of the present invention.
FIG. 3 is a detailed view of a part a in FIG. 1;
FIG. 4 is a detailed plan view of a part a in FIG. 1;
FIG. 5 is a view taken in the direction of the arrow C in FIG. 3;
FIG. 6 is a view on arrow D of FIG. 3;
FIG. 7 is a view on arrow B of FIG. 1;
FIG. 8 is a view taken in the direction of the arrow E in FIG. 7;
FIG. 9 is a side view showing a state where a roof is opened.
FIG. 10 is a side view showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Container 1a ... Side top rail 1b ... Side bottom rail 1c ... Corner post 1d ... Side wall 2 ... Waterproof sheet 3 ... Eyelet hole 4 ... Hole opening 5 ... Rope 6 ... Opening surface 7 ... Support frame 7a ... Post Part 7b ... Beam part 8 ... Sliding member 9 ... Link mechanism 9a, 9b ... Link arm 10 ... Shaft attaching part 11 ... Arm extension part 12 ... Connecting member 13 ... Push angle 14 ... Endless wire 15 ... Driving roller 16 ... Guide roller 17 …motor

Claims (5)

In an opening / closing roof of a container or the like in which a sheet is stretched over an upper surface opening of a container or a truck bed, the U-shaped support frame is arranged such that the sheet is stretched in the width direction of the container and the like and is movable in the front-rear direction of the container and the like. The supporting frame is connected to each other by a link mechanism by linking the link arms with each other to form a folding structure, and the support frame has a folding structure. Characterized by being able to protrude above the support frame in accordance with the folding of the link mechanism, and passing a connecting member between the protruding upper ends in the width direction of the container. The open / close roof of a container or the like according to claim 1, wherein the arm extension portion protrudes in a direction opposite to a direction in which the support frame moves for folding. The roof according to claim 1 or 2, wherein the connecting member is a rotating body. 4. The open / close roof of a container or the like according to claim 1, wherein the movement of the support frame disposed at an end is performed by pulling an endless wire stretched by a driving roller and a guide roller. 5. The open / close roof of a container or the like according to any one of claims 1 to 4, wherein a sliding member that abuts on a side top rail of the container is disposed on a support portion of the support frame.

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