JPH0338387B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roof structure that can be opened and closed to meet the needs of coal storage facilities, etc., which have a large upper storage capacity and prevention of dust pollution caused by stored materials.

For example, most of the large-scale storage of coal, etc. is carried out in open piles, and in this case, in order to secure a large volume, piles or supports of the required height are placed at predetermined intervals in parallel to each other. Forming a coal storage tank between the walls is carried out. The coal storage tank must be covered with a sheathing material to protect it from rain and prevent dust pollution. If this problem were to be addressed in the construction of a roof, it would be a large-span structure, but if this were to be constructed in earnest, the strength of supporting parts such as supporting walls that would receive large loads would also have to be taken into consideration.
It is inefficient to carry in and take out these storage areas from above, so they need to be able to be opened and closed freely, but it is not economically viable to add this function to the roof of a conventional structure. The reality is that the sheet can be manually covered or removed as a roof.

In view of the above-mentioned circumstances, the present invention is a lightweight, simple structure, large-span frame that can accommodate a large number of people, and has reasonably excellent strength without requiring any reinforcement of the support section or the support wall. And quickly.
The objective is to provide a roof structure that can be easily opened and closed and finished at a low cost.

In order to achieve the above object, in the retractable roof structure of the present invention, guide rails are laid at the top of the support walls or the required heights are laid in parallel at predetermined intervals, and the required heights are arranged in parallel at predetermined intervals. A guide rail is laid at the top of the height rack or supporting wall, and the guide rails are laid at the top of the required height rack or support wall in parallel at a predetermined interval, and the ends of the bar are connected with a pivot. A suspension cable is installed between the upper pivot points of the left and right joint bodies, in which a frame is rigidly connected in a triangular shape with bars in the front and back of the folding direction of the folding body, and the frame apex, and a sub-cable is installed in the direction orthogonal to the suspension cable. The sheet is fixed to the lattice-like cable structure where the cables are installed, and a holding cable is installed to hold the sheet between the lower pivot points of each bar. The two points between the two points are hooked between the facing guide rails so as to be movable and assembled.

If one of the front and rear frames of the roof structure configured as described above is fixed and the other frame is run as a tow vehicle, the seat will be closed by unfolding the folding body, and the seat will be closed by the reverse movement. The opening is activated by the convergence of the folded body.

This roof frame is composed of tension cables, so it is lightweight and has a simple structure. The roof surface that must bear the burden is a sheet that is easy to flap in the wind, although it has the advantage of being lightweight. However, when closed, prestress is automatically applied to the main suspension cable and hold-down cable via the sub-cable, which solves the biggest challenge of stiffening the tent roof against wind, thereby increasing its reliability for long-term use. Secured.

Examples will be described below with reference to the drawings.

An outline of the roof structure of the present invention is shown in FIG. 1, and details of each part are shown in FIG. 2. That is, as shown in FIG. 1, the roof unit 2 is movably hooked between the guide rails 1 and 1' laid at the top of the support walls or the guide rails 1 and 1' of the required height in parallel at a predetermined interval. and assembled.

The above-mentioned roof unit 2 is constructed by connecting the ends of the bars 3, . . . through pivot parts 4, . Frames 6, 6, which are formed by rigidly joining three bars 3, 3, 3 in a triangular shape, are pivotally connected 7, and joint bodies 8 are disposed on the left and right sides. The sheet 13 is fixed to a lattice-like cable frame 12 in which suspension cables 10, . . . are installed between the upper pivot points 9, . The holding cable 15, which presses down the sheet 13, is installed between the lower pivot point 14,... and the pivot joint 7.

The frame 6 is triangular because the folding body 5
This is to make the roof shape continuous. The sheet 13 is formed by simulating the expanded shape during the blow-up during closing. Assembling the roof unit 2 to the guide rails 1, 1' is as follows:
This is shown in detail in FIG.

That is, as shown in B, a support rod 17 extending outward is pivotally attached 17a to a bracket 16 attached to the lever 3 at an upper position from the center thereof, and a support rod 17 extending perpendicularly to the inward position is attached to the tip of the support rod 17. roller 1
8 is pivotally mounted, and a horizontal roller 20c is pivotally mounted to a planting shaft 20b from a sleeve portion 20a having a stopper 19 disposed at an outer position to prevent disengagement.
The rollers 18, 20c are held in contact with the guide step portion 21 surface of the guide rail body 1, 1'.

The other point, that is, the lower pivot point 14 and the pivot joint 7 portion is the portion shown by the encircled line C in A, which is shown in detail in C and C'. That is, the saddle portion 22
The shaft part 22c having the ring part 22b for fixing the planted presser cable 15 from a is located at the lower pivot point 14 between the bars 3.
A horizontal roller 22d, which is fitted into a hole formed in a connecting member 23 of the saddle part 22a, is hooked to a rail 24 extending from the inner wall surface of the guide rail body 1, 1'. The holding cable 15 is the bar 3
The lower pivot point 14 of the lower pivot point 14 is fixed to the pivot joint 7, and is also hooked to the guide rail bodies 1, 1'. In addition, 25 in the figure is a vertical roller attached to the saddle portion 22a. In this way, by hooking the upper and lower two points to the guide rails 1, 1', they cancel each other out, and no unreasonable bending stress is applied to the bar 3 and the guide rails 1, 1'.

The upper pivot points of the bar 3, which are indicated by the encircled line D at A', are indicated at D and D', and are the pivot portions 4 where the brackets protrude into each other as described above.

Incidentally, both of the above-mentioned two hooking parts can run along the guide rail bodies 1, 1' via rollers.

In the configuration described above, the sheet 13 is not simply suspended and supported by the suspension cable 10, but is stiffened by the introduction of prestress by the presser cable 15, so that flapping can be suppressed.

Furthermore, due to the presence of the sub-cable 11, prestress (effective tension) is introduced into both cables 10 and 15 when closed, which has the effect of suppressing flapping of the sheet 13.

To open and close the roof, a drive device and a stop device are added to the frames 6, 6, and when one of them is stopped and the other is run as a fixed side, the roof can be closed.
In the opposite direction, it becomes open. It is extremely simple and quick.

The functions for operating the roof configured as described above in the closing direction will be explained with reference to the procedure diagrams in FIGS. 3A to 3C. That is, as shown in Figure A, one frame 6 is set as the fixed side and the other frame 6 is run to close the roof surface.

Sub cable 1 towards the end of closing shown in Figure B.
Based on the fact that the tension is introduced into 1 by the running frame 6, the hanging cable 10 and the holding cable 15, which are perpendicular to the tension, are each provided with a presser,
The lifting force acts and prestress is introduced, producing the effect of suppressing flapping.

Figure C shows a case where wind load acts in the upward direction during closing, and the holding cable 15 handles the wind load with the above-mentioned introduction prestress, and if the wind load cannot be handled, the tension increases. On the contrary, the suspension cable 10 becomes prestressed loose.

As described above, according to the present invention, it is possible to provide a retractable roof structure that has the advantages of a low-cost, simple structure, high wind resistance and long-term use reliability, and allows a large-span frame to be freely opened and closed to ensure large accommodation. It can provide a quasi-full-scale roof, can be provided at low cost without requiring reinforcement of supporting walls, and can promote the practical use of shed-type coal storage facilities.

[Brief explanation of drawings]

Fig. 1 is an overhead view of the roof of the present invention when it is closed, Fig. 2 shows the main constituent parts, A is a view seen in the roof opening/closing direction,
A' is a view from A' to A' in A, B is an enlarged detailed view of a part in A, C is a view of part C in A and C' in C to C in C, and C' is a view from C in C. D is an enlarged detailed view of section D in the middle of A', D' is a view taken from D' to D' in D, and FIG. 3 is a procedure diagram in the roof closing direction. 1, 1'...Guide rail, 2...Roof unit, 3...Bar, 4...Pivot part, 5...Folding body, 6...Frame, 6a...Apex, 7...Pivot joint, 8... Joint body, 9... Pivotal point, 10... Hanging cable, 11... Sub cable, 12... Lattice cable frame, 13... Sheet, 14... Pivotal point, 15... Presser cable, 16 ... Bracket, 17... Support rod, 17a... Pivot, 18...
Vertical roller, 19... Stopper, 20a...
Sleeve part, 20b... shaft, 20c... horizontal roller, 21... guide stepped part, 22a... saddle part,
22b...Ring part, 22c...Shaft part, 22d...
...Horizontal roller, 23...Connecting member, 24...Rail, 25...Vertical roller.

Claims (1)

[Claims] 1. Guide rails are laid at the tops of parallel frames or supporting walls of the required height at a predetermined interval, and the bars are rigidly connected in a triangular shape in the front and back of the folding direction of the folding body, with the ends of the bars pivotally connected. A suspension cable is installed between the upper pivot point of the left and right joint bodies where the frame is pivotally connected, and the apex of the frame, and a sub-cable is installed in a direction orthogonal to the suspension cable, and the seat is fixed to a lattice-like cable structure. At the same time, a holding cable is installed to hold down the sheet between the lower pivot points of the roof unit.The lower pivot point of each bar of the roof unit and a point located above the center can be run between the facing guide rails. A retractable roof structure characterized in that it is assembled by being hung on.