JPH0420205Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a structure in which the roof is partially opened and closed for ventilation in a vinyl house with an arched roof using an arched frame.

``Prior Art'' Conventionally, as shown in Fig. 7, a transparent material such as a vinyl sheet or a polyethylene sheet is placed over the pipe-like arch-shaped frames 1, which are arranged in parallel at predetermined intervals and connected by ridge members 11, etc. A roof sheet 2 is stretched, and the roof sheet 2 is pressed entirely by a sheet holding rope 3 stretched between each arch-shaped frame 1 in a state where it intersects with the ridge. Both ends of each rope 3 are attached to winding shafts 4 at the hem (in the case of a multi-building house, the valley of the multi-building), which are rotatably supported on suitable bearings.
When partially opening and closing the roof sheet 2, turn the winding shaft 4 to loosen the sheet holding rope, and then use the winding rod 9 fixed to the hem of the roof sheet 2 to unroll the sheet 2. I was letting it wind up. 5
is a fixed tension sheet that is fixedly tensioned to the side hem of the greenhouse.

``Problems that the invention aims to solve'' In the conventional opening/closing structure, each time the roof is opened or closed, the winding shaft 4 must be turned to loosen or tighten the sheet holding rope 3, which is inefficient. In the case of a house having a long depth, the winding shaft 4 has the disadvantage of being bent due to repeated operations.

An object of the present invention is to provide a roof opening/closing structure that does not require loosening and tightening the sheet holding rope each time the roof is partially opened or closed.

"Means for solving the problem" A large number of arch-shaped frames are arranged side by side at predetermined intervals, a synthetic resin roof sheet is stretched over the arch-shaped frames, and the roof sheet is ridged between each arch-shaped frame. In a vinyl house having a structure in which the sheet is held down by a sheet holding rope that is stretched across the roof sheet, the top of the roof sheet is attached to all or any plurality of the arch-shaped frames at a portion that constitutes the curved surface of the roof. A bearing member is provided from above, and by supporting the shaft with the bearing member, the shaft is installed in parallel with the ridge, and by pressing the shaft in the direction of the arched frame with each of the sheet holding ropes, the curved surface of the roof is fixed. A part of the sheet presser rope floats above the arched frame, and in the section where the sheet presser rope floats above the arched frame, the vinyl sheet is rolled up by a take-up rod rolling over the arched frame. This is because it is configured to be wound and rewound.

"Operation" As described above, in the portion where the sheet presser rope floats above the arched frame, there is no need to loosen or tighten the sheet presser rope when winding or unwinding the roof sheet with the winding rod.

``Example'' Figure 1 shows a part of a multi-building greenhouse extending from the valley to the roof. A flexible roof sheet 2 made of transparent synthetic resin is stretched over each arch-shaped frame 1, and this roof sheet 2 crosses the ridge of the house. The sheet is held down by a sheet holding rope 3 stretched between each arch-shaped frame 1, and the end of each rope 3 is attached to a winding shaft rotatably supported on a bearing 62 attached to a groove groove 6. It is wrapped around 4.

A fixed tension sheet (not shown) similar to that shown in FIG. 7 is fixedly tensioned to the bottom of the arch-shaped frame 1 and positioned on the lower surface of the roof sheet 2.

In the parts that make up the curved surface of the roof of the house, every other or every few arch-shaped frames 1
Bearing members 7 are provided on the upper surface of each building with a roof sheet 2 interposed therebetween, and these bearing members 7 are arranged parallel to the ridge of the house. Each bearing member 7
By supporting the shaft 8 so as to be parallel to the ridge of the house, and pressing the shaft 8 against the arched frame 1 with each sheet holding rope 3, the bearing member 7 is fixed to the frame 3, and as shown in FIGS. As shown in FIG. 6, the sheet holding rope 3 forms a portion a floating above the arched frame 1 in a certain range on the curved surface of the roof. Some of the ropes 3 are wound around the shaft 8 once.

In this embodiment, the bearing member 7 is made of hard garbage or synthetic resin with strong elasticity and is molded into a substantially trapezoidal plate shape as shown in FIGS. Concave portion 71 in the wall thickness direction
is formed into a bifurcated shape, as shown in Figures 3 and 5.
As shown in the figure, a shallow groove 72 is formed in the bottom surface in the width direction through the roof sheet 2 in which the arched frame 1 is guided, and a bearing hole 73 is formed in the upper part, and the overall wall thickness is increased to improve stability. It is constructed so that it becomes thinner towards the top.

The groove 72 may be formed deeply as shown in FIG. 4, and the frame 1 and the roof sheet 2 may be fitted into the groove 72. Further, it is more preferable that the bottom of the bearing member 7 is formed to have a middle height so as to fit the curved surface of the frame member 1, as shown by the two-dot chain line b in FIG.

The hem end of the roof sheet 2 is in a free state, and a winding rod 9 provided to roll on the frame 1 is fixed to the hem end.
By rolling the sheet 2 counterclockwise and winding it up, the roof sheet 2 is rolled up at the part a where the sheet holding rope 3 floats above the arched frame 1, partially opening the roof, and then rolling it in the opposite direction. The roof is closed by unwinding the sheet 2 along the roof surface. The winding rod 9 is rotated using a motor with a speed reducer or a suitable manual winder.

The bearing member 7 does not only have the above-mentioned structure, but also supports the shaft 9 in a state floating above the arch-shaped frame 1, and the sheet holding rope 3 supports the part a floating above the arch-shaped frame 1 over a certain range. Any material that can be formed can be implemented.

"Effect of the invention" The opening/closing mechanism according to the invention includes a large number of arch-shaped frames arranged side by side at predetermined intervals, a synthetic resin roof sheet stretched over the arch-shaped frames, and the roof sheet attached to each arch-shaped frame. In a vinyl house having a structure in which a sheet is held down by a sheet holding rope stretched to intersect with the ridge between the roofs, the roof A bearing member is provided from above the seat, and the shaft is supported by the bearing member so that the shaft is installed in parallel with the ridge, and the shaft is held down in the direction of the arched frame by each of the sheet holding ropes, thereby fixing the roof. A take-up rod in which a part of the curved surface of the sheet presser rope forms a part floating above the arch-shaped frame, and the sheet press rope rolls over the arch-shaped frame in the part where the sheet press rope floats above the arch-shaped frame. Since it is configured to wind up and unwind the vinyl sheet, in the part where the sheet holding rope floats above the arched frame,
There is no need to loosen or tighten the sheet holding rope when winding or unwinding the winding rod.
The roof of the greenhouse can be opened and closed very smoothly and quickly.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view showing an embodiment of the present invention;
Fig. 2 is an enlarged front view of the bearing member, Fig. 3 is a side sectional view of Fig. 2, Fig. 4 is a side sectional view showing another embodiment of the bearing member, and Fig. 5 is Fig. 1 A-A. 6 is a front sectional view of the main part, and FIG. 7 is a partial perspective view of the conventional opening/closing mechanism. Explanation of the symbols in the main drawings: 1 is an arched frame;
2 is a roof sheet, 3 is a rope holding down the roof sheet,
7 is a bearing member, 72 is a groove, 73 is a groove, 8 is a shaft, 9
is the winding rod.

Claims (1)

[Claims for Utility Model Registration] (1) A large number of arch-shaped frames are arranged side by side at predetermined intervals,
In a vinyl house with a structure in which a synthetic resin roof sheet is stretched over this arch-shaped frame, and the roof sheet is held down by a sheet-retaining rope stretched between each arch-shaped frame so as to intersect with the ridge, the curved surface of the roof is A bearing member is provided from above the roof sheet to all or any plurality of the arch-shaped frames in the arch-shaped frame at a portion constituting the roof sheet, and the bearing member supports the shaft so that the shaft is parallel to the ridge. The sheet presser ropes are attached to the arched frame, and the sheet presser ropes press the shaft in the direction of the arched frame, so that the sheet presser ropes form a part floating above the arched frame on a part of the curved surface of the roof. An opening/closing structure for the roof of a vinyl house, characterized in that the roof sheet is wound up and unwound by a winding rod that rolls on the arched frame at a portion where the rope floats above the arched frame. (2) Claim 1 of the Utility Model Registration Claim characterized in that by providing two parallel shafts supported by bearing members, the sheet holding rope forms a portion floating above the arched frame. The opening and closing structure of the roof of a greenhouse. (3) The bearing member has a groove and a bearing hole in which the arched frame is guided through a roof sheet, and is molded from hard garbage or synthetic resin with strong elasticity. The roof opening/closing structure of a vinyl house according to scope 1 or 2.